OMPI – Búsqueda en las colecciones de patentes nacionales e internacionales

1.599446Improvements in or relating to internal combustion engines

GB - 12.03.1948

Clasificación Internacional F02B 1/04 Nº de solicitud 1470045 Solicitante BRITON SELBY ROBSON Inventor/a

599,446. Two-stroke and four-stroke engines. ROBSON, B. S. June 11, 1945, No. 14700. [Class 7 (ii)] Extra power is obtained from a steam generator, situated in the combustion chamber and formed of a copper or a similar good heatconducting material, which is insulated from the walls of the chamber or piston and either made tubular or as a plate, and on to which water is injected during each cycle, in amount such that complete evaporation takes place. As shown two metal linings f<2>, f<3>, are insulated from the cylinder head by an insulating lining h and water is injected by a nozzle g into a cavity k where steam is formed which forces the remaining water spray into the space between the two linings f<2>, f<3> where it also is converted into steam.

2.599510Improvements in or relating to devices comprising an electric gaseous discharge tube

GB - 15.03.1948

Clasificación Internacional H01J 61/52 Nº de solicitud 2490145 Solicitante PHILIPS NV Inventor/a

599,510. Discharge apparatus. PHILIPS LAMPS, Ltd. Sept. 25, 1945, No. 24901. Convention date, Aug. 14, 1940. [Class 39 (i)] Gaseous electric discharge tubes 3 are cooled in a body of liquid, e.g. water, contained in a closed vessel 1 which also contains a small quantity of gas, the ratio of the volume of gas to that of liquid being so small as to prevent boiling of the liquid due to the rise in temperature and pressure in the vessel. The envelope of the discharge tube is preferably provided with projections 8, formed, for example, by sealing sharp edged pieces of glass or quartz thereto, to prevent the sudden formation of vapour bubbles at the discharge tube. The gas in the vessel 1 may be air, in the proportion of 1 : 9 of the volume of water, at 20‹ C. and 1 atmosphere pressure. The dissipation of heat may be increased by cooling fins. Alternatively, the vessel 1 may be cooled by water, which may circulate in a closed circuit, or by a second closed vessel containing cooling liquid and a gas. A thermostat may be provided to operate an indicator or render the discharge tube inoperative. The vessel may be formed of a material to transmit light, such as glass or quartz, and may be in parts mechanically connected. The cooling liquid may also be chosen to act as a light filter. The discharge tube is mounted on the stem 2 of the vessel 1, by means of insulators 7 carrying the leads 5, and may have a filling of rare gas and mercury at about 80 atmospheres with an output of 500 watts. The subjectmatter is identical with that of Specification 552,597.

3.599541Improvements in or relating to brakes for vehicles

GB - 15.03.1948

Clasificación Internacional F16D 55/14 Nº de solicitud 2845945 Solicitante GLYN PIERCE ROBERTS Inventor/a

599,541. Disc brakes. ROBERTS, G. P. Oct. 27,.1945, No. 28459. [Class 103 (i)] A disc brake comprises a pair of friction rings arranged to be given a part rotation in opposite directions to cause them to be moved apart by balls in conical recesses or other means, to engage annular friction surfaces secured to the 'member to be braked. Certain of the conically recessed members may be adjustable automatically or manually to take up wear of the friction surfaces. A pair of channel-section rings 10, 11 are rotatably mounted on a cylindrical member 14 secured to the axle assembly of a vehicle wheel and carry friction linings 15 for engagement with a two-part casing 29, 30 which may be bolted to the wheel or may be extended radially to receive a detachable wheel rim. The rings 10, 11 are urged towards each other by wire springs and carry conically-recessed members 17, 18 that receive balls 16. The rings can be turned in opposite directions to cause the balls to move them apart by tappets 21, 22 that engage abutments 25, 26 on the respective rings and are moved by a wedge 23 and interposed balls 31. The stem 32 of the wedge has a ball-andsocket attachment 33 to a plunger 34 slidable in a socket 35 on the back-plate 36 and actuated by a cable 37 or a rod 40. The tappets are urged towards each other by a spring 24. When the rings 10, 11 contact the rotating casing the frictional torque causes one or other ring, according to the direction of rotation, to engage a stop and the other ring to turn further, thus giving a self-energising action. The plunger and socket 34, 35 may be replaced by a similarly arranged hydraulic cylinder, the piston acting however to push the wedge or a radially arranged lever pivoted at its middle point on the back plate may be connected at its ends to the stem of the wedge and a pull-rod. The wedge may be operable both hydraulically by a pedal-operated master cylinder and mechanically by a hand lever or a wedge and tappets 21, 22 may be arranged at diametrically opposite positions on the brake the wedges being respectively operated hydraulically by a pedal and mechanically by a hand lever. To take up wear of the friction surfaces one of the rotating surfaces may be adjustable manually towards the other by screw means or as shown the members 18 may screw into sleeves 19 on the ring 11 and be toothed to mesh with a toothed ring 51 which may be turned manually as by rotating one of the members 18 or automatically by a pawl 53 pivoted on one of the rings 10, 11 and abutting on a stop 54 on the other ring. The pawl engages ratchet teeth 52 on the ring 51 and if in an application of the brake the relative rotation of the rings 10, 11 is excessive, the pawl slips a ratchet tooth and the ring 51 is advanced during the return movement of the rings 10, 11. The normal position of the pawl is determined by a stop 56.

4.588394Improvements in or relating to curtain runners

GB - 21.05.1947

Clasificación Internacional A47H 15/02 Nº de solicitud 377145 Solicitante JOSEPH MUNDLE LAMB Inventor/a

588,394. Suspending curtains. LAMB, J. M., LAMBE, J. P., and THOMAS, J. B. Feb. 15, 1945, No. 3771. [Class 52 (v)] A curtain runner comprises a plurality of flanged rollers h mounted in a C-shaped sheet metal body member a for simultaneous engagement with the upper and lower edges of a curtain rail, an upwardly directed hook d being stamped out of said body member for use as a curtain support. The runner may be constructed so that two rollers engage the upper rail edge and one engages the lower rail edge, or vice versa, and these two forms may be arranged alternately on the rail so as to enable the close packing of the runners.

5.599567Improvements in ventilator constructions for buildings

GB - 16.03.1948

Clasificación Internacional E06B 7/084 Nº de solicitud 2412745 Solicitante ANN MORRIS Inventor/a

599,567. Multi-panel ventilators. MORRIS, A. (Cornish, H. E.). Sept. 18, 1945, No. 24127. [Class 137] A multi-panel louvre ventilator has a guardplate hinged on an axis at right angles to the pivotal axis of the ventilator panels on each side of the outside of the ventilator and a common operating lever effects the displacement of the guard - plate and the panels. As shown a number of channel sockets 2 for the panels are mounted on spindles which rotate in the side frame 6, and carry teethed pinions 7 which mesh with the teethed rack bar 8. Integral with or connected to this bar is cam plate 8 having a pin and slot connection 10, 11 with the lever 12 pivoted at 13 to the frame 6. The link 14 connects the lever 12 to the hinged guard-plate 17. The pivoted lever 19 is linked to the rack bar at 20 and when operated moves the bar and thus rotates the pinions 7, and moves the plate 9, causing the lever 12 to pivot, which through the link 14 moves the guard-plate to the closed position where it enshrouds the panel ends with its shaped edges. The panel may be locked in any position by the screw 23, 24 which causes the serrations 25, 26 to engage. The rack bar may be urged to contact the pinions 7 by means of leaf springs.

6.599581Improvements in or relating to indicating and recording instruments

GB - 16.03.1948

Clasificación Internacional G01P 1/02 Nº de solicitud 2422245 Solicitante RALPH POOLE Inventor/a

599,581. Indicating apparatus. POOLE, R. Sept. 19, 1945, No. 24222. [Class 106(iv)] The dial c of an indicating instrument is gripped between the main part A of a casing and a front cover moulded from a transparent plastic material and comprising a face part D and flange D 1. A glass E <1> is mounted in a frame E, preferablv moulded from black plastic material, the frame E and cover part D<1> being clamped to the casing A by bolts F. The parts D, D <1> may be formed in one piece or in two pieces and permanently united by cement or solvent. In either case the outer circumferential surface of the part D<1> may be roughened or otherwise formed to increase the lateral transmission of light to the dial c. Specification 586,535, [Group XXIX], is referred to in the Provisional Specification.

7.599595Improved method of refining glyceride oils

GB - 16.03.1948

Clasificación Internacional C11B 3/06 Nº de solicitud 2456245 Solicitante ANDERSON CLAYTON & CO Inventor/a

Crude glyceride oils are refined by mist-mixing the oil with a water-adsorptive agent selected from the group consisting of salts containing water-adsorptive anions, (e.g., sodium silicate), colloidal silica (e.g., silica jelly) and mixtures thereof and with an aqueous caustic alkali solution, e.g., 20 to 30 per cent. which neutralizes the free fatty acids in the oil to form soapstock, and separating the soapstock from the oil, the amount of caustic alkali used being in sufficient excess of that required to neutralize the free fatty acids to ensure that some of it is present at the time of separation, and the agent being used in such an amount as substantially to reduce the proportion of neutral oil retained by the soapstock and to retard the saponification of the neutral oil. The crude oil is heated in tank 1 by coils 2 and/or in heat exchanger 11 to, for example, 44 DEG to 71 DEG C. The water-adsorptive agent is distributed throughout the caustic soda solution in tank 16 by means of the agitator 18 and the mixture may be heated to the desired reaction temperature by means of coil 17. The oil and refining solution are delivered to a centrifugal atomizing and mixing head 131 in exactly the desired proportions by means of variable delivery pumps 7 and 22 controlled by means of hand wheels 8 and 23, the rate of oil and reagent flow being observed by means of flow meters 12 and 25. The oil and reagent delivered to the head 131 are instantaneously mist-mixed and projected radially as a homogeneous mist-mixture, and flow as a film down the collecting walls of the closed reaction chamber 14, initially as an emulsion which is then broken by imparting to it a temperature of, for example, 60 DEG C to 83 DEG C, chamber 14 being jacketted for this purpose. The mixing head 131 is driven by a belt 15. The broken emulsion is discharged into receiver 30 and may either be delivered direct to the refining centrifuge 35 by means of pump 31 or preferably to 35 via a combined agitating and heating device 36. The occurrence of free soapstock in the centrifuge discharge is thereby eliminated or greatly reduced, so that the oil from 35 may be delivered direct to the clarifying centrifuge 49. Cloud may be removed from the oil in the clarifying centrifuge 49 by bye-passing the agitator 36 and pumping the oil from the refining centrifuge 35 through the combined cooler and agitator 44 where it is cooled to a temperature preferably below 33 DEG C. The soapstock previously dissolved in the hot oil is thereby thrown out of solution and coagulated, being thus readily separable from the oil. Alternatively the oil from the centrifuge 35 may be delivered into tank 51 and cooled therein either spontaneously or by means of the coil 52. After precipitation of the dissolved soapstock particles by this cooling they are coagulated by operation of the agitator 53 and the oil then delivered to the clarifying centrifuge 49. Specification 571,973 is referred to.

8.599854Separation of non-neutral electrolytes

GB - 23.03.1948

Clasificación Internacional B01D 11/04 Nº de solicitud 1294545 Solicitante SHELL DEV Inventor/a

A process for separating a mixture of pencillin and acids normally associated therewith in its manufacture, different members of the mixture having different dissociation constants, comprises introducing the pencillin mixture into an extraction zone and subjecting it therein to the action of two at least partially immiscible liquid, one being an ionizing medium, such as water (and preferably containing a buffer), and the other a solvent for the penicillin mixture, the two liquid flowing countercurrently to each other through the extraction zone, to produce two phases (an ionizing medium extract phase and a solvent extract phase) which are rich in different components of the penicillin mixture, introducing (between the points of introduction of the penicillin mixture and of the solvent and preferably near the point of introduction of the latter) into the zone a stripping electrolyte having the same tendency to change protons as the components of the mixture and having a higher dissociation constant, and separating the phases, the stripping electrolyte being soluble in the ionizing medium, having a low distribution coefficient into the solvent, and being preferably an aqueous solution of an inorganic acid. Examples of ionizing media, solvents, stripping electrolytes and buffers are given. According to one example, an aqueous solution of penicillin contaminated with weaker acids and made neutral with sodium bicarbonate is extracted with 100 per cent by volume of methylisobutyl ketone in two theoretical stages to recover 98 per cent of penicillin, the stripping electrolyte (4 per cent phosphoric acid) being introduced (1) as part of the feed, (2) at a number of points between the feed inlet and rafinate outlet and (3) near the solvent inlet. In another example, aqueous solutions of penicillin are extracted with equal volumes of methylisobutyl ketone, the aqueous solution and solvent being introduced at different ends of an extraction column while dilute acid is introduced in a different manner in extraction of each sample: (1) with the aqueous penicillin feed; (2) with the feed which was lightly buffered and (3) between the feed and solvent inlets. The resulting aqueous phases are separately acidified, solvent extracted, water washed and dried.ALSO:A process for separating a mixture of electrolytes having a tendency to change their number of protons in the same direction, different members of the mixture having different dissociation constants, comprises introducing the electrolyte mixture into an extraction zone and subjecting it therein to the action of two at least partially immiscible liquids, one being an ionizing medium, such as water (and preferably containing a buffer) and the other a solvent for the electrolyte mixture, the two liquids flowing countercurrently to each other through the extraction zone, to produce two phases, an ionizing medium extract phase and a solvent extract phase, which are rich in different components of the electrolyte mixture, introducing between the points of introduction of the electrolyte mixture and of the solvent and preferably near the point of introduction of the latter into the zone a stripping electrolyte having the same tendency to change protons as the components of the mixture and having a higher dissociation constant, and separating the phases, the stripping electrolyte being soluble in the ionizing medium, having a low distribution coefficient into the solvent, and being preferably an aqueous solution of an inorganic acid or base. In a modification, the solvent extract phase is scrubbed with an ionizing medium phase and a scrubbed solvent extract phase, the phases being separated and the separated ionizing medium phase being introduced into the extraction zone. Examples of ionizing media are: water, liquid anhydrous ammonia, anhydrous liquid sulphur dioxide, liquid carbon dioxide; water-soluble mono-and polyhydric alcohols, e.g. methyl-, ethyl-and iso - propyl alcohols, ethylchlo

9.599910Improvements in or relating to the manufacture of instrument bearing jewels and the like

GB - 24.03.1948

Clasificación Internacional B29C 43/02 Nº de solicitud 1098244 Solicitante ACES DEV COMPANY LTD Inventor/a

599,910. Moulding bearing jewels. ACES DEVELOPMENT CO., Ltd., and MARTINS, M. June 8, 1944, No. 10982. [Class 87 (ii)] [Also in Group XXIII] In the manufacture of instrument bearing jewels and the like from thermoplastic material, a rod p of the material is intermittently advanced into a zone between a die e and a plunger j where it is heated by burners wand becomes plastic. By means of a treadle a pivoted rod g is withdrawn from the die simultaneously with the advance of the plunger which thus causes the intrusion of the plastic material into the die. On the reverse movement of rod g and plunger the jewel is ejected: the jewels may be left as projections on the continuous strip of excess plastic material from which they can subsequently be broken off.

10.599918Improvements relating to electromagnetic switches

GB - 24.03.1948

Clasificación Internacional H01H 51/06 Nº de solicitud 1503644 Solicitante WILLIAM EARLE STILWELL JR Inventor/a

599,918. Electromagnetic switches. STILWELL, W. E. Aug. 8, 1944, No. 15036. Convention date, Feb. 8, 1941. [Class 38(v)] [Also in Group XXXV] In an electromagnetic switch for household wiring &c., which is controlled by a source of lower voltage the actuator comprises two coils 33 and 34 separated by a hollow core 35, which has an armature 38 sliding inside it, and positioned by end stops 30 and 31, and enclosed in a casing 12, parts 12, 30 and 31 being of magnetic material, and the armature 38 being moved right or left by energising coil 34 or 33. A metal rod 26 is attached to the armature 38 having at one end a yoke 21 carrying a pair of contacts 20. These engage a pair of fixed contacts 18 which are mounted together with the high voltage terminals 17 on the insulating head 16 of the switch. A snap spring 27, of the type disclosed in Specification 582,185 is fixed to the other end of the rod 26, and holds the armature in position against stop 30 or 31.

1 / 242.448

Ir al espacio Buscar	`CTRL` + `SHIFT` +
Ir a Resultados (registro seleccionado)	`CTRL` + `SHIFT` +
Ir a Detalle (pestaña seleccionada)	`CTRL` + `SHIFT` +
Ir a Página siguiente	`CTRL` +
Ir a Pagina anterior	`CTRL` +

Ir a Siguiente registro / imagen	/
Ir a Registro o Imagen anterior	/
Desplazar hacia arriba	`Page Up`
Desplazar hacia abajo	`Page Down`
Desplazar al inicio	`CTRL` + `Home`
Desplazar hasta el final	`CTRL` + `End`

Procesando

Entradas en la fase nacional

Fichero de referencia

Configuración

Comentarios

Ir a una solicitud

Guardar consulta

Arborescencia de consulta

Afinar opciones

Consulta completa

Ver teclas de acceso rápido en dos columnas

Análisis

Ir a Siguiente pestaña
Ir a Pestaña anterior