Gogu (George) Constantinescu : Sonicity & Vibration transmission of Power -- Articles & patents [**rexresearch**](http://rexresearch.com/)[**rexresearch1**](http://rexresearch1.com/) --- **Gogu CONSTANTINESCU [ George CONSTANTINESCO ]** **Sonicity** --- **See also: [G. Constantinescu: Inertial Transmission](../constran/0constran.htm) ( [II](../constran/1constran.htm) ) ( [III](../constran/constran.htm) )** --- [**https://en.wikipedia.org/wiki/George\_Constantinescu**](https://en.wikipedia.org/wiki/George_Constantinescu) George "Gogu" Constantinescu (Romanian pronunciation: [EdEeI-ordEe konstantiEnesku]; last name also Constantinesco; 4 October 1881 a 11 December 1965) was a Romanian scientist, engineer, and inventor. During his career, he registered over 130 inventions. Constantinescu was the creator of the theory of sonics, a new branch of continuum mechanics, in which he described the transmission of mechanical energy through vibrations... **Sonics** In 1918, he published the book A treatise on transmission of power by vibrations[4] in which he described his theory of sonics. The theory is applicable to various systems of power transmission but has mostly been applied to hydraulic systems. Sonics differs from hydrostatics, being based on waves, rather than pressure, in the liquid. Constantinescu argued that, contrary to popular belief, liquids are compressible.[5] Transmission of power by waves in a liquid (e.g. water or oil) required a generator to produce the waves and a motor to use the waves to do work, either by percussion (as in rock drills) or by conversion to rotary motion.[2] ... **Recent developments** Research on a sonic asynchronous motor for vehicle applications (based on Constantinescu's work) has been done at the Transilvania University of BraEov. The date of the paper is believed to be 5 October 2010.[10] --- [**http://www.cimec.ro/muzee/mteh/gogu\_eng.htm**](http://www.cimec.ro/muzee/mteh/gogu_eng.htm)**Technical Museum "Dimitrie Leonida"** **Sonicity**Sonicity is the science of transmitting mechanical energy through vibrations. Starting from the theory of the musical accords, Gogu Constantinescu found the laws for transmitting the mechanical power to the distance through oscillations that propagate in continuous environments (liquid or solid) due to their elasticity. At the Romanian Academy conference of the 14th of November 1919, Gogu Constantinescu presented the multiple functioning of the sonicity in transports, energetics and petroleum drillings. The laws used in sonicity are the same with the laws used in electricity. Gogu Constantinescu founded the theory of the sonicity and made the sonic engine. Using an invention of Gogu Constantinescu on a sonicity application, the British military aviation held supremacy during World War First. --- Theory of Wave Transmission ( A Treatise on Wave Transmission of Power ) G. Constantinesco ( 2nd Edition, 1922 ) [ [PDF](theoryofwavetran.pdf) ] --- [**https://www.inventricity.com/the-sound-man-george-constantinesco**](https://www.inventricity.com/the-sound-man-george-constantinesco)**The Sound Man - George Constantinesco and Sonic Power Transmission****Barrie Blake-Coleman** ...For one thing, he amassed some 134 granted British patents with possibly another 150 inventions never filed for a patent. Over his life he was responsible for a total of 319 patents filed in France, Germany and the UK, mostly dealing with the control or transmission of motive forces through liquids and solids. For another, he held the gratitude of every British fighter pilot of the first world war as the inventor of the hydraulic interrupter gear that made it possible for allied aircraft to fire their machine guns through rotating propellers. Better, it was said, than the Fokker designed (and somewhat less reliable) interrupter used on German machines. Moreover, the ever burgeoning automobile market was to give thanks to his sonic oil drilling technique, making it possible to drill deep wells in half the time usually experienced. Indeed, his interest in acoustics and sound, and its application to engineering, made him virtually unique in his inventions and various engineering applications. Unlike many inventors then, it was 'sonics', the application of vibratory or sound transmission to convey energy and power, that was Constantinesco's forte, and accounted for the greater part of his inventive output throughout his life... In 1915 he disproved the fallacy of liquid compressibility by demonstrating a silent mortar that was capable of launching a 90 Kg projectile well over 1400 metres. It employed super compressed oil at 25,000 psi. Another example compressed a volume of water at 30,000 psi (some 2,000 atmospheres) reducing its original volume by 30%. --- [**https://edubilla.com/invention/theory-of-sonics/**](https://edubilla.com/invention/theory-of-sonics/)**Theory of sonics - Invented by George Constantinescu****About Invention** The theory of sonics is a branch of continuum mechanics which describes the transmission of mechanical energy through vibrations. The birth of the theory of sonics can be considered the publication of the book A treatise on transmission of power by vibrations in 1918 by the Romanian scientist Gogu Constantinescu. **History of Sonic Drilling** The roots of sonic drilling technology can be traced back to the efforts of George Constantinesco, a Romanian intellectual who immigrated to England in 1910. Constantinesco formulated the aTheory of Sonicsa which was published by the British Admiralty in 1913 and, during that same year, he demonstrated a prototype of a rock drill working on a percussion system, with much success. Unlike pneumatic drills, Constantinescoas vibratory prototypes were capable of boring through hard granite rock, quietly and smoothly. Less than 20 years later, another Romanian became interested in sonic vibrations. In 1930, encouraged by the work of Constantinesco, Romanian engineer Dr. Ion Basgan applied sonic vibrations to the drill pipe string of a conventional drilling rig. Amazingly, the result was increased drill depth and speed. The drill was also able to bore a truly vertical hole without distortion, which was not always possible with other methods. Bore holes using this method were drilled at the Moreni oil fields of Romania in 1938 and Basgan received patents on this technique in Romania and the USA. Eventually, this led to interest in developing sonic drilling in the USA by the oil industry during the 1940as and 1950as. Initial research and development of the rotary-vibratory drill began in the United States in 1946. For the first few decades, sonic rig research, conducted by Drilling Research Inc. (DRI), was developed almost exclusively for use in the petroleum industry with the intent of speeding up drill times. Although a lack of funding ended DRIas research in 1958, American inventor AlbertBodine continued development work on high-powered vibratory machines for various applications including drilling. Most of his efforts (funded by Shell Oil) were directed at large vibratory pile driving machines although his organization eventually developed a smaller vibrator for seismic shot-hole drilling.Funding for the project ended in the late 1960as and, in the early 1970as, Bodine sold his drilling and pile driving equipment to Hawker Siddeley, a British aircraft manufacturer with Canadian offices. As a result, renewed efforts to develop the vibratory pile driver and drilling rig came to Canada. One of the first persons hired for the Hawker Siddeley design team was a young mechanical engineer named Ray Roussy. While the teamas initial efforts focused on the pile driving equipment, later work concentrated on adapting the vibratory shot-hole driver to general shallow earth drilling. From 1974 to 1983, approximately 12 rigs using early sonic technology were constructed and used in different applications. Unfortunately, these first machines experienced frequent breakdowns and lacked appropriate tooling to withstand the associated vibratory forces. The recession of the early 1980as discouraged Hawker Siddeley from continuing development work in this field. However, the original sonic rig heads and drill rigs built by Hawker Siddeley are still used today. Ray Roussy left Hawker Siddeley in 1980 to continue development work on the sonic drill head and to adapt it to different applications. Roussy also serviced and upgraded the original Hawker Siddeley drill heads to make them more reliable and he also constructed a number of additional sonic drill heads that were similar. To prove the usefulness of this new technology to the subsurface exploration industry and to carry out long-term reliability testing of his equipment, Roussy built a sonic drill head and drill rig for himself and formed his own contracting company, Sonic Drilling Ltd. For many years now, Sonic Drilling Ltd. has operated successfully from the Vancouver area, keeping a number of rigs fully contracted on a busy schedule. Mounted with the aRoussy sonic drill head,a these rigs have become well-known favorites for use in environmental investigations and geothermal drilling projects. As a result of Roussyas 27 years of research and development efforts, he was awarded a number of US patents for his improvements to sonic drilling technology. Today, Roussy is president of Sonic Drill Corporation, a company which manufactures a product line of sonic drilling rigs utilizing the worldas most advanced and tested sonic drill heads. With his patented technology in use around the world, Roussy can claim credit for not only improving on the efforts of those who went before him but of finally bringing a highly-sophisticated sonic drill to market. Offering unparalled performance in overburden soil conditions, the sonic drill head can drill three to five times faster than any other on the market a all without the use of drilling mud and with 70-80% less waste. Sonic drills can also provide continuous undisturbed core samples to a depth of 300 feet a a significant advantage over all other drills. Today, sonic drilling is even being considered and tested for use in interplanetary exploration. Perhaps, 100 years after the publication of Constantinescoas theory, the first drill on Mars will be a sonic. --- ![](Image5.jpg) ![](Image3.jpg) --- [**https://www.utgjiu.ro/revista/ing/pdf/2016-3/13\_G.POPESCU%20-THEORY%20OF%20SONICS%20NATURE.pdf**](https://www.utgjiu.ro/revista/ing/pdf/2016-3/13_G.POPESCU%20-THEORY%20OF%20SONICS%20NATURE.pdf)**Annals of the aConstantin Brancusia University of Targu Jiu, Engineering Series , No. 3/2016****76****"THEORY OF SONICSa NATURE** **// POPESCU GEORGE**[ [**PDF**](POPESCUTHEORYSONICSNATURE.pdf) ] --- [**https://1lib.sk/book/2697490/9fc636/largeeddy-simulation-in-hydraulics.html**](https://1lib.sk/book/2697490/9fc636/largeeddy-simulation-in-hydraulics.html)**Large-eddy simulation in hydraulics****Constantinescu, George, Rodi, Wolfgang, Stoesser, Thorsten****[ [PDF](LargeeddysimulationConstantinescu.pdf) ] (117 MB)** --- [**http://aspeckt.unitbv.ro/jspui/bitstream/123456789/111/1/CONAT20101050-Paper.pdf**](http://aspeckt.unitbv.ro/jspui/bitstream/123456789/111/1/CONAT20101050-Paper.pdf)**THE SONIC ASYNCHRONOUS MOTOR FOR VEHICLE APPLICATIONS****Sebastian Radu, et al. [ [PDF](CONAT20101050Paper.pdf) ]****ABSTRACT a** Sonic propulsion systems are based on energy transfer using waves propagated in liquids. The major advantages of this process are low dissipation rates and high power density. In order to convert the sonic energy for propulsion goals, an asynchronous motor with liquid rotor was considered. Results of sonic-mechanical conversion processes analysis are presented in the paper. Two different size experimental models were built and analysed. --- Gogu Constantinescu' Torque Converter Analysis with Simulink by Ion Ion [ [PDF](TorqConvAnalysis.pdf) ] --- ![](ConstantinescoSonicPrinciples.JPG) ![](ConstantinescuCannon.jpg) ![](ConstantinescuCannon2.jpg) ![](ConstantinescuCannon3.jpg) ![](ConstantinescuStamp.jpg) --- --- **Patents** **USA** **[US1334280](Patents/US1334280A1.pdf) -- Hydraulic Transmission [US1334281](Patents/US1334281A1.pdf) -- Storage and utilization of energy by means of liquid [US1334282](Patents/US1334282A1.pdf) -- Transmission of impulsive forces through liquids [US1334283](Patents/US1334283A1.pdf) -- Hydraulic power transmission [US1334284](Patents/US1334284A1.pdf) -- Rock-drill and like machine [US1334285](Patents/US1334285A1.pdf) -- Means for feeding liquid wave-transmission line [US1334287](Patents/US1334287son.pdf) -- Means for compensating for leakage in wave-transmission systems [US1334289](Patents/US1334289A1.pdf) -- Liquid wave transmission of Power [US1334290](Patents/US1334290son.pdf) -- Liquid wave transmission of Power [US1334291](Patents/US1334291A.pdf) -- Rotary motor actuated by alternating fluid-currents [US1372941](Patents/US1372941A1.pdf) -- Power-driven reciprocating implement and means for driving the same [US1372942](Patents/US1372942A1.pdf) -- Drill [US1372943](Patents/US1372943A1.pdf) -- Pump [US1372944](Patents/US1372944A1.pdf) -- Method and means for actuating gun-triggers [US1432672](Patents/US1432672A1.pdf) -- Alternating liquid current motor [US1432673](Patents/US1432673A1.pdf) -- Synchronous alternating liquid current motor [US1432743](Patents/US1432743A1.pdf) -- Sounding device actuated from internal-combustion engines [US1525269](Patents/US1525269A.pdf) -- Method and apparatus for transmitting power from a steadily-rotating shaft to a driven shaft [US1545401](Patents/US1545401son.pdf) -- Power Transmission [US1550505](Patents/US1550505.pdf) -- Power Transmission [US1569719](Patents/US1569719.pdf) --** ****Power Transmission** [US1570554](Patents/US1570554.pdf) -- Pump [US1582734](Patents/US1582734A.pdf) --** ******Power Transmission****[US1584435](Patents/US1584435A.pdf) -- Mechanism for transmitting impulses to a distance... [US1591471](Patents/US1591471A.pdf) -- Power-transmission mechanism [US1613344](Patents/US1613344A.pdf) --** ********Power Transmission**********[US1642602](Patents/US1642602A.pdf) -- Elastic Link****[US1738692](Patents/US1738692A.pdf) -- Unidirectional driving device [US2730609](Patents/US2730609A1.pdf) -- Blowpipes** **Great Britain** **[GB139959](Patents/GB139959A.pdf) -- Improved Reversing Cock** **[GB106309](Patents/GB106309A.pdf) -- Improvements in Liquid Wave Transmission of Power****[GB146642](Patents/GB146642A.pdf) -- Improved means for actuating speed indicating devices...******[GB155000](Patents/GB155000A.pdf) --**** ******Improvements In carburettors****** **[GB155001](Patents/GB155001A.pdf) -- Improvements in carburettors [GB165591](Patents/GB165591A.pdf) -- Improvements in or relating to fluid pressure operated sound producing devices****[GB180450](Patents/GB180450A.pdf) -- Improvements in and relating to sounding devices actuated from internal combustion engines [GB181103](Patents/GB181103A.pdf) -- Improvements in and relating to sounding devices actuated from internal combustion engines [GB185022](Patents/GB185022A.pdf) -- An improved method and means for transmitting power from prime movers... [GB185040](Patents/GB185040A.pdf) -- Improvements in valves [GB185840](Patents/GB185840A.pdf) -- An improved device for indicating liquid level... [GB187830](Patents/GB187830A.pdf) -- Improvements in pipe connections [GB189234](Patents/GB189234A.pdf) -- Improvements in liquid level indicators [GB189235](Patents/GB189235A.pdf) -- Improvements in liquid level indicators [GB189887](Patents/GB189887A.pdf) -- Improvements in and relating to carburettors [GB190236](Patents/GB190236A.pdf) -- Improvements in carburettors [GB190307](Patents/GB190307A.pdf) -- Improvements in liquid level indicators [GB192226](Patents/GB192226A.pdf) -- Improvements in and relating to carburettors** ****[GB192463](Patents/GB192463A.pdf) -- Improvements in liquid level indicators**********[GB194735](Patents/GB194735A.pdf) -- An Improved Pump; Also published as: FR560439**** [GB198093](Patents/GB198093A.pdf) -- Improvements in liquid level indicators [GB202126](Patents/GB202126A.pdf) -- Improved means for fixing butterfly valves on spindles [GB202689](Patents/GB202689A.pdf) -- Improvements in carburettors [GB204730](Patents/GB204730A.pdf) -- An improved method and apparatus for producing mixtures of liquids and gases [GB205293](Patents/GB205293A.pdf) -- Improvements in unidirectional driving devices [GB206700](Patents/GB206700A.pdf) -- An improved method and apparatus for transmitting power... [GB207034](Patents/GB207034A.pdf) -- Improvements in fuel supply systems...****[GB208582](Patents/GB208582A.pdf) -- Improvements in pumps****[GB210486](Patents/GB210486A.pdf) -- Means for preventing breakage due to resonance in high speed machinery [GB217684](Patents/GB217684A.pdf) -- Improvements in or relating to unidirectional driving mechanism******[GB218406](Patents/GB218406A.pdf) -- Improvements in power transmission**[GB229357](Patents/GB229357A.pdf) -- Improvements in unidirectional driving devices [GB293122](Patents/GB293122A.pdf) -- Means for securing bodies on rotating shafts [GB220706](Patents/GB220706A.pdf) -- Improvements in power transmission [GB234317](Patents/GB234317A.pdf) -- Improvements in power transmission [GB236657](Patents/GB236686A.pdf) -- An improved method and means for advancing and retarding a driven shaft relatively to a driving shaft [GB236686](Patents/GB236686A.pdf) -- Improved method and means for transmitting impulses... [GB254806](Patents/GB254806A.pdf) -- Improvements in and relating to carburetting apparatus [GB255943](Patents/GB255943A.pdf) -- Improvements in unidirectional driving devices [GB263944](Patents/GB263944A.pdf) -- Improvements in elastic links or the like ; Also published as: US1642602G [GB271572](Patents/GB271572A.pdf) -- Improvements in unidirectional driving devices [GB273014](Patents/GB273014A.pdf) -- Driving gear for motor vehicles and for other purposes [GB274157](Patents/GB274157A.pdf) -- Improvements relating to fittings for spectacles... [GB278427](Patents/GB278427A.pdf) -- Improvements in unidirectional driving devices [GB281389](Patents/GB281389A.pdf) -- Improvements in unidirectional driving devices [GB293122](Patents/GB293122A.pdf) -- Means for securing bodies on rotating shafts [GB415808](Patents/GB415808A.pdf) -- Improvements in railway motor wagons [GB429193](Patents/GB429193A.pdf) -- Improvements in railway motor wagons [GB456761](Patents/GB456761A.pdf) -- Improvements in apparatus for controlling the volumetric output and discharge pressure... [GB457849](Patents/GB457849A.pdf) -- An improved gear-ratio indicator and/or control device [GB457850](Patents/GB457850A.pdf) -- Improvements in or relating to gear changing mechanism [GB568066](Patents/GB568066A.pdf) -- Substitute for metal castings [GB585047](Patents/GB585047A.pdf) -- Improvements in substitute for metal casting [GB679155](Patents/GB679155A.pdf) -- Improvements in liquid springs** **Austria** **[AT37558B](Patents/AT37558B.pdf) -- BehAcurrencylter zum Aufbewahren von leichten FlA1/4ssigkeiten [AT58307B](Patents/AT58307B.pdf) -- OberflAcurrencychenvergaser. [AT59690B](Patents/AT59690B.pdf) -- Vergaser fA1/4r Verbrennungskraftmaschinen. [AT61515B](Patents/AT61515B.pdf) -- erdampfer [AT66287B](Patents/AT66287B.pdf) -- Improvements in and relating to the Automatic Regulation Feed of Liquids for Supplying Carburetters... [AT82273B](Patents/AT82273B.pdf) -- Verfahren und Einrichtung zur KraftA1/4bertragung [AT87000B](Patents/AT87000B.pdf) -- Vorrichtung zur KraftA1/4bertragung mittels FlA1/4ssigkeitswellen [AT88747B](Patents/AT88747B.pdf) -- Verfahren zum Fortleiten von StoAwellen durch eine FlA1/4ssigkeitssAcurrencyule [AT88768B](Patents/AT88768B.pdf) -- Vorrichtung zum Betrieb von Kraft- und Arbeitsmaschinen mittels PreAflA1/4ssigkeiten [AT88769B](Patents/AT88769B.pdf) -- Improvements in Liquid Wave Transmission of Power [AT92033B](Patents/AT92033B.pdf) -- Hydraulische KraftA1/4bertragungsanlage. [AT92034B](Patents/AT92034B.pdf) -- Vorrichtung zur Abertragung von Energie. [AT93093B](Patents/AT93093B.pdf) -- KraftA1/4bertragungsgetriebe mittels FlA1/4ssigkeitswellen [AT100363B](Patents/AT100363B.pdf) -- Getriebe [AT100371B](Patents/AT100371B.pdf) -- Getriebe [AT108320B](Patents/AT108320B.pdf) -- Vorrichtung zum Antrieb in einer Richtung [AT153724B](Patents/AT153724B.pdf) -- Vorrichtung zum Anzeigen des AbersetzungsverhAcurrencyltnisses...** **Switzerland** **[CH41851](Patents/CH41851A.pdf) -- Einschienige Gleichgewichtsbahn [CH60730](Patents/CH60730A.pdf) -- Karburator fA1/4r Verbrennungskraftmaschinen [CH61654](Patents/CH61654A.pdf) -- Karburator [CH61655](Patents/CH61655A.pdf) -- Karburator [CH62091](Patents/CH62091A.pdf) -- Karburator [CH62656](Patents/CH62656A.pdf) -- Vorrichtung zum automatischen Regulieren... [CH69390](Patents/CH69390A.pdf) -- Verfahren zur Umsteuerung der Drehbewegung ... [CH70333](Patents/CH70333A.pdf) -- Verfahren zum Abertragen von Energie und Vorrichtung zum AusA1/4ben dieses Verfahrens [CH74978](Patents/CH74978A.pdf) -- KraftA1/4bertragungsanlage... [CH75910](Patents/CH75910A.pdf) -- Verfahren zum Speisen von Leitungen zur EnergieA1/4bertragung... [CH76016](Patents/CH76016A.pdf) -- Verfahren und Vorrichtung zur Aufspeicherung... [CH76250](Patents/CH76250A.pdf) -- Vorrichtung zur KraftA1/4bertragung [CH76251](Patents/CH76251A.pdf) -- Vorrichtung zum Ausschalten... [CH76477](Patents/CH76477A.pdf) -- Einrichtung an Verbrennungskraftmaschinen zum ZufA1/4hren... [CH76844](Patents/CH76844A.pdf) -- Umschalteinrichtung an Verbrennungskraftmaschinen... [CH77150](Patents/CH77150A.pdf) -- Durch alternierende FlA1/4ssigkeitsstrAPme betAcurrencytigter Motor mit kreisender Bewegung [CH78989](Patents/CH78989A.pdf) -- Verdampfer fA1/4r schwere, flA1/4ssige, als Brennstoff dienende Kohlenwasserstoffe [CH78991](Patents/CH78991A.pdf) -- Vorrichtung mit sich hin- und herbewegenden Teilen.. [CH82847](Patents/CH82847A.pdf) -- Einrichtung zur KraftA1/4bertragung durch Fortpflanzung von Wellen in einer FlA1/4ssigkeit [CH84688](Patents/CH84688A.pdf) -- Einrichtung zum Speisen einer Abertragungsleitung fA1/4r schwingende FlA1/4ssigkeitssAcurrencyulen [CH87441](Patents/CH87441A.pdf) -- Verfahren zur Abertragung von Kraftimpulsen... [CH106853](Patents/CH106853A.pdf) -- Pump [CH107922](Patents/CH107922A.pdf) -- Verfahren zur Herstellung von ZahnrAcurrencydern, die Resonanzeinwirkungen unterworfen sind [CH109355](Patents/CH109355A.pdf) -- Dispositif entraA(r)neur A rochet. [CH113972](Patents/CH113972A.pdf) -- Improvements in unidirectional driving devices ; Also published as: AT104342 // GB229357 [CH120882](Patents/CH120882A.pdf) -- Dispositif de commande pour transformer un mouvement oscillant en un mouvement A sens unique [CH121180](Patents/CH121180A.pdf) -- Verfahren und Vorrichtung zur KraftA1/4bertragung [CH121396](Patents/CH121396A.pdf) -- MA(c)canisme pour la transformation d'un mouvement oscillant en un mouvement rotatif [CH121897](Patents/CH121897A.pdf) -- ProcA(c)dA(c) et appareil de transmission de puissance [CH124193](Patents/CH124193A.pdf) -- Dispositif permettant de transformer un mouvement oscillatoire en un mouvement circulaire de sens constant [CH125638](Patents/CH125638A.pdf) -- Vorrichtung zur KraftA1/4bertragung [CH126648](Patents/CH126648A.pdf) -- Vorrichtung zur KraftA1/4bertragung [CH133547](Patents/CH133547A.pdf) -- Dispositif pour caler des corps sur des arbres rotatifs [CH175851](Patents/CH175851A.pdf) -- Schienentriebfahrzeug [CH274157](Patents/CH274157A.pdf) -- ProcA(c)dA(c) pour la fabrication d'un corps moulA(c) et corps moulA(c) obtenu par ce procA(c)dA(c).** **German** **[DE324238](Patents/DE324238C.pdf) -- Einrichtung zum Umschalten der Zufuhr von leichtem und schwerem Brennstoff in Verbrennungskraftmaschinen [DE330151](Patents/DE330151C.pdf) -- Vorrichtung zum Speisen von Fluessigkeitsleitungen... [DE337969](Patents/DE337969C.pdf) -- Verfahren zum Fortleiten von Stosswellen durch eine Fluessigkeitssaeule [DE339277](Patents/DE339277C.pdf) -- Improved means for actuating speed indicating devices...; Also published as: GB146642 [DE348433](Patents/DE348433C.pdf) -- Verfahren zum Vergasen von schweren Kohlenwasserstoffen mittels Abhitze [DE348647](Patents/DE348647C.pdf) -- Einrichtung zur Regelung der Luftzufuhr bei durch Saugluft betriebenen Schallerzeugern [DE353544](Patents/DE353544C.pdf) -- Gesteinbohr- o. dgl. Arbeitsmaschine [DE354495](Patents/DE354495C.pdf) -- Pressfluessigkeitskraftspeicher [DE355146](Patents/DE355146C.pdf) -- Verfahren und Vorrichtung zur Kraftuebertragung... [DE355147](Patents/DE355147C.pdf) -- Vorrichtung zur Kraftuebertragung mittels tropfbarer Pressfluessigkeiten [DE358651](Patents/DE358651C.pdf) -- Improvements in and relating to Transmitting Power by Fluid Wave Transmission. Also published as: GB191515398 [DE358744](Patents/DE358744C.pdf) -- Durch Druckwellen einer tropfbaren Pressfluessigkeit getriebener Motor [DE359260](Patents/DE359260C.pdf) -- Vorrichtung zur Kraftuebertragung mittels tropfbarer Fluessigkeiten [DE360628](Patents/DE360628C.pdf) -- Vorrichtung zur Kraftuebertragung mittels Fluessigkeitssaeulen [DE360629](Patents/DE360629C.pdf) -- Improvements in Liquid Wave Transmission of Power; also published as: AT88769 // DK23864 // GB106309 // NL5632 [DE378264](Patents/DE378264C.pdf) -- Signalvorrichtung fuer Kraftfahrzeuge... [DE378339](Patents/DE378339C.pdf) -- Signalvorrichtung fuer Kraftfahrzeuge... [DE380353](Patents/DE380353C.pdf) -- Vergaser [DE382969](Patents/DE382969C.pdf) -- Vorrichtung zum Anzeigen des Fluessigkeitsstandes [DE395113](Patents/DE395113C.pdf) -- Rohrverbinder [DE400572](Patents/DE400572C.pdf) -- Kolbenpumpe [DE408250](Patents/DE408250C.pdf)-- Kolbenluftpumpe... [DE423833](Patents/DE423833C.pdf) -- Verfahren zur Herstellung... [DE424336](Patents/DE424336C.pdf) -- Verfahren und Vorrichtung zur Leistungsuebertragung... [DE426547](Patents/DE426547C.pdf) -- Schaltwerk [DE426548](Patents/DE426548C.pdf) -- Schaltwerk [DE426549](Patents/DE426549C.pdf) -- Verfahren und Vorrichtung zur Leistungsuebertragung... [DE426551](Patents/DE426551C.pdf) -- Einrichtung zur Stabilisierung von Schaltwerksgetrieben... [DE426552](Patents/DE426552C.pdf) -- Vorrichtung zur Leistungsuebertragung... [DE426553](Patents/DE426553C.pdf) -- Einrichtung zur Leistungsuebertragung [DE427387](Patents/DE427387C.pdf) -- Schaltwerk [DE428025](Patents/DE428025C.pdf) -- wei- oder mehrphasig wirkende Schaltvorrichtung [DE428026](Patents/DE428026C.pdf) -- Verfahren und Einrichtungen zur Leistungsuebertragung [DE431959](Patents/DE431959C.pdf) -- Einrichtung zur Herstellung von Gemischen aus Fluessigkeiten und Gasen [DE453958](Patents/DE453958C.pdf) -- In einer Richtung wirkendes Schaltwerk ; Also published as: FR453958 [DE453959](Patents/DE453959C.pdf) -- In einer Richtung wirkendes Schaltwerk [DE456178](Patents/DE456178C.pdf) -- Vorrichtung zum Zufuehren des Brennstoffs bei Brennkraftmaschinen [DE459513](Patents/DE459513C.pdf) -- Vorrichtung zum selbsttaetigen Schalten... [DE648191](Patents/DE648191C.pdf) -- Schienenfahrzeug [DE842778](Patents/DE842778C.pdf) -- Metallguss-Ersatzmasse** **Danish** **[DK26416C](Patents/DK26416C.pdf) -- Anordninger til at fA,re VA|dskebA,lger gennem Ledninger [DK27622C](Patents/DK27622C.pdf) -- zremgangsmaade og Apparater til Opsamling og NyttiggA,relse af Energi ved HjA|lp af VA|dsker [DK35402C](Patents/DK35402C.pdf) -- Improvements in pumps ; Also published as: AT100596 // GB208582 [DK36798C](Patents/DK36798C.pdf)-- Drivmakanisme [DK38431C](Patents/DK38431C.pdf) -- Anordning til Forandring af en svingende BevA|gelse til en OmdrejningsbevA|gelse [DK73968C](Patents/DK73968C.pdf) -- FremgangsmAYENde til fremstilling af armerede formlegemer ved stA,bning samt armeringer i disse formlegeme** **French** **[FR598435](Patents/FR611024A.pdf) -- Perfectionnements au procA(c)dA(c) et aux dispositifs... [FR611024](Patents/FR611024A.pdf) -- Perfectionnements aux carburateurs [FR722104](Patents/FR722104A.pdf) -- Appareil pour inspecter et A(c)prouver les articles de bonneterie et particuliA"rement les bas et chaussettes [FR768835](Patents/FR768835A.pdf) -- Perfectionnement aux automotrices sur rails** ---