baber/WOPTO huggingface dataset:
Patent GB-1062143-A (GB)
Title: Hydraulic control valve
IPC: F15B13/04
Filed: 1965-08-24
Abstract: 1,062,143. Valves. CATER-  PILLAR TRACTOR CO. Aug. 24, 1965 [Sept. 16, 1964], No. 36379/65. Heading F2V. The control of a double-acting jack 14 is effected by valve spool having a centring spring 17, an operating lever 16 and a detent mechanism consisting of a pair of spring-loaded pins 24 that cooperate with an enlargement 25. A piston 26 is slidable in a cylinder in the spool and the cylinder is connected to passages 27, 28. Upon leftward shifting of the spool to direct pump pressure to the rod end of the jack via a pipe 22, the pressure in the latter also communicates with the piston through passages 27, 28. The piston 26 abuts a casing plug, so that when the jack reaches the end of its stroke a sudden pressure rise occurs in pipe 22 which causes the spool to move rightwardly overcoming the detent mechanism and enabling the spring 17 to centre the spool.
Patent GB-959077-A (GB)
Title: Display switch
IPC: H01H13/02
Filed: 1962-09-25
Abstract: 959,077. Selective display devices. INDUSTRIAL ELECTRONICS ENGINEERS Inc. Sept. 25, 1962 [Sept. 29, 1961], No. 36385/62. Heading G4H. In a display unit consisting of a series of lamps 22 each associated with a numeral transparency 40, lenses 32, 38 being provided to project the digit associated with the selected lamp on to a screen 56, the screen is mounted on a slidable casing 72 biased to the outward position by springs 88 and arranged to be pressed inwardly so that a finger 114, mounted on the casing, operates a switch 95. This may control.remote circuitry to change the digit displayed.
Patent GB-1023425-A (GB)
Title: Gasket materials
IPC: C04B30/02
Filed: 1962-09-25
Abstract: An inorganic non-metallic gasket sheeting stable at temperatures up to 1000 DEG C. is composed of 50 to 98% by weight of synthetic tetrasilicic fluorine-mica platelets and 2 to 50% of inorganic fibrous material having a length-to-width ratio of 10 : 1.  The fibrous material is siliceous, aluminiferous or titaniferous; examples are: asbestos, potassium titanate fibre, aluminium silicate glass fibre, fused acid-leached silica-glass fibre, and fused silica-glass fibre.  The sheet may be made by adding the fibres to a suspension of the synthetic mica, beating, depositing on a screen and removing the water by drainage, vacuum, heat or a combination of these.
Patent GB-982041-A (GB)
Title: Improvements relating to windscreen wipers
Inventor: SMITHERS PHILLIP GEOFFREY KENT
IPC: B60S1/38
Filed: 1960-10-24
Abstract: 982,041. Windscreen wipers. TRICOFOLBERTH Ltd. Oct. 24, 1961 [Oct. 24, 1960], No. 36437/60. Heading A4F. To reduce the tendency of a windscreen wiper to be lifted off the windscreen by the wind, the wiping lip 16, Fig. 3, is mounted at or near one longitudinal edge of the body 18, the lower face of which is roughly parallel with the windscreen 17. Holes 25 may be made in the support member 18, which may also be slotted to carry the wiper assembly 10. In an alternative embodiment, Fig. 5, the wiper 29 is carried on the backing strip 28, and the stub 31 prevents scratching of the windscreen. Specification 932,233 is referred to.
Patent GB-1181526-A (GB)
Title: Hydrostatic-Mechanical Power Transmission Arrangements.
Inventor: HASSLAUER GERHARD
IPC: F16H47/04
Filed: 1967-08-09
Abstract: 1,181,526. Variable speed gearing. IFA GETRIEBEWERKE BRANDENBURG VEB. 9 Aug., 1967, No. 36559/67. Heading F2D. A split-torque variable-speed gear for a tractor comprises an input shaft 2, a continuously variable ratio hydrostatic transmission 6 in parallel with a stepped ratio change-speed gear, and a sun-planet-annulus epicyclic train 16, 19, 17 to combine the parallel path outputs to drive the input bevel pinion 40 of a differential gear (not shown). A power take-off shaft 24 is driven from the input shaft 2 via gears 3, 4, a hollow shaft 5, and gears 8, 9, 25. In Fig. 1, the input shaft 2 is driven through a starting clutch 1. The hollow shaft 5 and a shaft 15 extending therethrough respectively form the input and output of the hydrostatic drive 6, the shaft 15 carrying the sun 16 of the output epicyclic train. The gear 9 is connected to a shaft 7 by a one-way clutch (not shown), and a gear 10 secured to shaft 7 meshes a gear 11 rigid with the annulus gear 17 and clutchable to the shaft 5 by a disc or one-way clutch 14. A gear 12 meshing the gear 11 is clutchable to the input shaft 2 by a clutch 13. For mechanical reverse, a dog clutch 23 is engaged to drive the bevel gear 40 from the power take-off shaft 25 via gears 21, 20. For forward drive, a dog clutch 22 is engaged to connect the planet carrier 19 to the bevel gear 40. To start from rest, the hydrostatic drive is set to lock the sun 16, and clutch 1 is engaged, the drive being via gears 3, 4, 8, 9, 10, 11, to the annulus gear 17. When clutch 1 is fully engaged the hydrostatic drive is adjusted to progressively accelerate the sun 16 in the same direction as the annulus 17. For the second speed range, clutch 14 is engaged and the one-way clutch of gear 9 over-runs, the annulus 17 being driven directly from the shaft 5. For the third speed range, clutch 14 is disengaged and clutch 13 engaged so that annulus 17 is driven via gears 12, 11. In Fig. 2, a planetary change speed gear is used. Stepped planets 36 in a carrier 34 rigid with the gear 11 mesh an annulus gear 35, an input sun 33 on shaft 5, and a reaction sun 37 held by a brake 39 for reverse. To start from rest, a brake 38 is engaged to hold the annulus 35, and the hydrostatic drive is set to lock the sun 16, drive being via gears 3, 4, 33, planet carrier 34, and annulus 17. Then the sun 16 is accelerated by adjusting the hydrostatic drive. For the second speed range, brake 38 is released and clutch 14 is engaged so that annulus 17 is driven from the hollow shaft 5. For the third speed range, clutch 14 is disengaged and clutch 13 engaged so that annulus 17 is driven via gears 12, 11. The hydrostatic transmission 6 has a pump G and a motor M having their respective swashplates connected to the input and output shafts respectively.
Patent GB-302242-A (GB)
Title: Improvements in or relating to a shaft-raising motion for dobbies
IPC: D03C1/14
Filed: 1928-12-11
Abstract: 302,242. Stõubli, H., Stõubli, H., Stõubli, R., and Stõubli, H., (trading as Stõubli & Co., Geb.). Dec. 12, 1927, [Convention date]. Shedding-levers; shedding-motions. - One of the shaft-lifting levers g is provided with notches f for attachment of the rod d with the dobby, the notches being arranged in an arc of a circle centred at c in the basic position of the heald shaft, and the interconnected levers are provided with notches l arranged in a horizontal line when the heald shaft is in the basic position, so that different lifts may be given without effecting the basic position. The connection between the levers may be effected by a hooked link i or otherwise.
Patent GB-1504608-A (GB)
Title: Gas cooling devices
IPC: F28D5/02
Filed: 1976-07-08
Abstract: 1504608 Gas cooling installations R H BUTCHER 8 July 1976 [5 Sept 1975] 36595/75 Heading F4S In a heat exchange arrangement wherein a flow of compressed air or other compressed gas is cooled by indirect contact (e.g. through the walls of tubes 12) with a coolant fluid, coolant fluid flow is induced by a bleed of the compressed gas directed through one or more nozzles 32 disposed in said coolant fluid flow. In the form shown the tubes 12 are disposed in an upright casing 10 in which is an inlet 24 and an outlet (25, Figs. 1 and 2) for ambient air serving as the coolant. The tubes 12 are supplied at their upper ends with compressed air to be cooled and at their lower ends open into a compartment 17 leading via an elbow 22 to an outlet 23 for cooled compressed gas. Also opening into the compartment 17 is the lower end of a tube 28 at the upper end of which is the nozzle 32 encircled by a Venturi arrangement comprising a tube 33. Outflow from the nozzle is controlled by adjustment of a screw 36 acting on a needle 35 extending through the nozzle. Condensate from the cooled compressed gas collects at the bottom of chamber 17. In use, some of the cooled compressed air passing into the chamber 17 flows into the tube 28 and out of the nozzle carrying with it some of the condensate whereby an upward flow of ambient air over the tubes 12 is induced and at the same time heat transfer is assisted by evaporation of the sprayed condensate. The tube fins 35a comprise coils of copper wire. In an alternative arrangement only briefly described, the ambient air flows in tubular ducts parallel to and adjacent the tubes 12 and in heat exchange relation therewith.
Patent GB-1525420-A (GB)
Title: Process for producing porous carbon
IPC: C01B31/08
Filed: 1976-09-03
Abstract: 1525420 Porous carbon SUMITOMO CHEMICAL CO Ltd 3 Sept 1976 [4 Sept 1975] 36650/76 Heading C1A Porous carbon, useful as a selective absorbent, is made by suspension-polymerization of a mixture of at least one first monomer, which contains a plurality of non-conjugated ethylenically unsaturated groups, and at least one other monomer, which is a monoethylenically unsaturated monomer, in a liquid medium in the presence of a liquid precipitant which is substantially insoluble in the liquid medium, which functions as the solvent for the mixture of monomers and which does not swell the resulting copolymer, treating the resulting porous organic high molecular weight compared so as to make it infusible, and then carbonizing the product. Preferably the first monomer is divinylbenzene and the other monomer is styrene, but many other monomers, including nitrogen-containing monomers, are listed. The liquid medium may be water and the precipitant may be an alkanol having 4 to 10 carbon atoms, an aliphatic saturated hydrocarbon having at least 7 carbon atoms or an alkyl ester having at least 7 carbon atoms; the precipitant is suitably used in an amount of 30 to 50% by weight of the total weight of monomers and precipitant. Infusibilization of the porous organic high molecular weight compound may be effected by treating it with oxygen, ozone, sulphur trioxide, sulphur dioxide, sulphuric acid, chlorosulphonic acid, nitrogen dioxide, nitrogen monoxide, chlorine, bromine or hydrogen peroxide, and carbonization thereof by heating it at a temperature of more than 500‹ C in an inert atmosphere, suitably at from 800 to 2800‹ C. In a preferred embodiment, the first monomer is divinylbenzene and the other monomer is styrene, and infusibilization is effected by sulphonation using sulphur trioxide, sulphuric acid or chlorosulphonic acid and carbonization is carried out under nitrogen. Examples illustrate the production of a styrene-divinylbenzene copolymer by suspension polymerization of the monomers followed by sulphonation with fuming sulphuric acid at 110‹ C and carbonization at 1,000‹ C in a nitrogen atmosphere.
Patent GB-404802-A (GB)
Title: Improvements in or relating to feed water supply plants for locomotives
IPC: F22D1/42
Filed: 1932-12-28
Abstract: 404,802. Heating and supplying feedwater. HEINL, F., 16, Favoritenstrasse, Vienna. Dec. 28, 1932, No. 36655. Convention date, Dec. 28, 1931. [Classes 64 (i) and 123 (ii).] In heating feedwater for locomotives by the exhaust steam, the feedwater heater 1 is connected with the suction pipe L6 of a feed device P and with a hot-water reservoir 2 by a water supply pipe 4, and cold water from the tender passes by a pipe L5 first to the reservoir 2 and thence to the heater 1. An overflow pipe 7 returns excess water from the heater to the feed end of the reservoir. An injector 3 circulates the water through the heater and is operated by boiler steam from the pipe L2 controlled by a starting valve A also controlling the feed pump P and by steam from the supply pipe L3 of the steam chest. The pipes L2, L3 have non-return valves 11, 11<1>. The reservoir 2 is divided into compartments a-d intercommunicating by narrow passages always covered with water. In a modification, the injector 3 is placed in the supply pipe L5 and is connected with the overflow pipe 7. On a tender-locomotive, the heater and reservoir are placed in the water tank, and an air release pipe 12<1> is provided.
Patent GB-1311260-A (GB)
Title: Process for producing imidazo 2,1-a isoindoles
IPC: C07D233/22
Filed: 1970-02-23
Abstract: 1311260 Imidazoline derivatives SANDOZ Ltd 23 Feb 1970 [19 May 1969] 36702/72 Divided out of 1306511 Heading C2C Novel imidazoline derivatives of the general formula wherein each of R and R 1  is a hydrogen, fluorine or chlorine atom, and acid addition salts thereof are prepared by reaction of the N 1 o-dilithium derivative of 2-phenyl-2-imidazoline with a benzonitrile of the general formula under an inert atmosphere and in an organic solvent which is inert under the reaction conditions, and hydrolysis of the resulting adduct, followed optionally by salification of a resulting free base or conversion of a resulting salt into the corresponding free base. They may be converted to 5-phenyl-5-hydroxy-2,3-dihydro- 5H-imidazo[2,1-a]-isoindoles of the general formula and acid addition salts thereof by treatment with water in the presence of an acid at pH 1-4, followed optionally by salification of a resulting free base or conversion of a resulting salt into the corresponding free base.
Patent GB-660096-A (GB)
Title: Improvements in or relating to the manufacture of fluorescent lamps
IPC: C09K11/08
Filed: 1946-12-12
Abstract: 660,096. Luminescent materials; discharge lamps. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Dec. 12, 1946 [Aug. 28, 1945], No. 36725/46. Drawings to Specication. Class 39 (i). A method of preparing a zinc beryllium silicate manganese activated phosphor for fluorescent lamps comprises adding to the raw materials forming the phosphor a small amount of an element having a small ionic radius and a valency of not less than two, such as beryllium, magnesium, boron, aluminium, zirconium, tungsten or phosphorus, mixing the ingredients so completely, e.g. by ball milling, and heating them for such a time to a temperature, between 1220‹ and 1270‹ C., preferably between 1240‹ and 1270‹ C., that the reacted phosphor weighs at least eight, and preferably ten to twelve grams per cubic inch, and grinding and heating to about 900‹ C. in a reducing atmosphere, e.g. of carbon monoxide or hydrogen. In examples described the proportions of zinc oxide, beryllium oxide, silica, magnesia and manganous carbonate which are heated to about 1220‹ C. are given. The phosphor is applied to the internal surface of a lamp envelope either electrostatically after being made into a smoke or by the flush method after being mixed with a lacquer binder, the envelope being thereafter baked in air at about 500‹ C. to remove the binder. In the latter case the re-oxidation produced is removed by reduction in carbon monoxide or hydrogen. In order to avoid loss of light from the lamp by reflection the outside of the envelope may be thinly coated with calcium fluoride by dipping the envelope for a short time in dilute hydrofluoric acid.
Patent GB-1162376-A (GB)
Title: Improvements in and relating to fasteners
Inventor: JANES AUSTEN ERNEST
IPC: A41F1/00
Filed: 1966-08-17
Abstract: 1,162,376. Strip fastenings. A. E. JANES. 29 June, 1967 [17 Aug., 1966], No. 36795/66. Heading E2S.  A strip fastener comprises two elongate members, the first of which comprises two longitudinal side elements 3 connected by transverse elements 4, the second elongate member comprising a longitudinal row of equi-spaced studs 6, the transversely extending side faces of which are undercut so that each element 4 may be fastened by snap action between two adjacent studs. The studs 6 project from one face of a backing strip 5. The free ends of the studs are chamfered. The fastener may be of synthetic plastics or metal. The side elements 3 and the strip 5 may be penforated for stitching the fastener members to fabric.
Patent GB-432517-A (GB)
Title: Improvements in or relating to cageless roller or needle bearings
IPC: F16C43/06
Filed: 1934-12-27
Abstract: 432,517. Roller bearings. PITNER, A., and SOC. ANON. DES ROULEMENTS A AIGUILLES, 15, Rue Gustave Eiffel, Levallois-Perret, Seine, France. Dec. 27, 1934, No. 37042. Convention date, July 14. [Class 12 (i)] In cageless needle or roller bearings the rollers 4 are retained in engagement with a cylindrical raceway 2, at one or both ends of the bearing, by annuli 5b separate from the raceway 2 and capable of limited axial movement. As shown the annuli 5b are slidable on rings 13 slidable on the raceway 2. Alternatively, the annuli 5b may be fixed to or integral with the rings 13. The roller has cylindrical, conical or other shaped nipples 6 at the ends.
Patent GB-629179-A (GB)
Title: Improvements in or relating to kinematograph projection with continuously moving film
IPC: G03B41/08
Filed: 1946-12-16
Abstract: 629,179. Kinematograph projectors. SCOPHONY, Ltd., WIKKENHAUSER, G., ADAMS, A. E., COOK, G. H., and DUGGAN, R. E. Dec. 16, 1946, No. 37075. Addition to 589,971. [Class 97 (i)] A kinematograph projector as in the parent Specification comprises a number of optical compensators equal to or one less than the number of light flashes per frame, each of said compensators being mounted for rotation about a single axis. As shown in Fig. 1, a film is continuously moved by a rotatable sprocket 4 mounted on a shaft 5 geared to a shaft 7 carrying a prism 6. An electric discharge lamp 1, associated with which is a lens system 2 and a rotating disc 11 having a slot 12 therein, is caused to illuminate the film by two light flashes per frame. In order to compensate for the film movement between successive light flashes, the hypotenuse face of prism 6 is caused to deflect the light through the projection system 10 twice per frame, the prism taking up the position shown in the full and broken lines, Fig. 2, respectively. The film having moved through a distance d, the length of the light path is changed; the prism is designed to compensate for the defocusing which the change would otherwise produce. Instead of the single prism, a prism and a mirror, which is parallel to the reflecting face of the prism, may be rotatable about a common axis, or a group of prisms and mirrors rotatable about an axis parallel to their reflecting faces may be used; the prisms in this case are each designed to compensate for the defocusing which would otherwise be produced by the change in length of the light path. Two mirrors 16, 17, rotatable in their own planes about a common axis 18, may be used, as shown in Fig. 3, one mirror being operative for each light flash. In order to prevent defocussing when mirror 17 is operative, a parallel-sided glass block 21, also rotatable about 18, is used; this block may, however, be mounted for rotation about an axis perpendicular to the projection axis. In another case, a prism and a mirror are disposed side-by-side so as to be slidable into and out of the light path to render one or other of them operative.
Patent GB-1323361-A (GB)
Title: Change-speed control device for a vehicle transmission
IPC: F16D67/00
Filed: 1970-07-31
Abstract: 1323361 Variable speed gears ZAHNRADFABRIK FRIEDRICHSHAFEN AG 31 July 1970 [5 Aug 1969] 37118/70 Heading F2D A vehicle transmission including an engine 1 driving via a hydro-dynamic coupling K (e.g. a torque convertor) and a mechanical gear-box 4 of which the ratio is varied by friction clutches and/or brakes actuated by pressurized fluid (liquid or gaseous), has the input and output speeds of the coupling K determined electrically (e.g. by sensors 8, and either 7 or 6 which latter provides a signal modified at 10 according to the gear ratio) and corresponding signals are fed to a computer 9 which provides an electrical signal proportional to the torque transmitted to control valves 11, 12 controlling ratio change in the gear-box. The electrical signal proportional to torque may also control at 13 the pressure at 16, 17 fed to the valves 11, 12.
Patent GB-808286-A (GB)
Title: Process for improving the properties of polyethylene and other olefine polymerisation products
IPC: D01F1/10
Filed: 1955-12-29
Abstract: Shaped bodies of polyolefines other than polyisobutylene, with improved properties, are obtained by incorporating with the polymers at least one finely divided oxide of a metal or metalloid of the 2nd, 3rd or 4th group of the Periodic system, which has been obtained by the reaction of a volatile compound of the metal or metalloid in the presence of an oxidizing and/or hydrolysing gas in the vapour a gaseous phase, shaping by known methods and stretching the bodies beyond the elastic limit.  Polyethylene or mixtures thereof with polyolefines such as polyisobutylene, or mixtures of polyolefines with other high molecular weight substances may be used with at least 3 per cent preferably 5 to 30 per cent of oxide.  In examples, polyethylene is admixed with aluminium oxide prepared by the hydrolysis of aluminium chloride in the vapour phase, and a mixture of high molecular weight of polyethylene prepared by the Ziegler process, and polypropylene is admixed with silica prepared by the hydrolysis of silicon tetrachloride.
Patent GB-1089048-A (GB)
Title: Diode parametric amplifier
Inventor: AITCHISON COLIN STUART
IPC: H03F7/04
Filed: 1966-08-22
Abstract: 1,089,048. Parametric amplifiers. MULLARD Ltd. Aug. 22, 1966, No. 37502/66. Heading H3B. In a diode parametric amplifier of the type disclosed in Specification 996,346 the seriesresonance of the diode is used to support the idler current and the series-resonant idler frequency circuit is completed through the reactive coaxial section and the impedance of the signal source. A varacter diode D, Fig. 1, is positioned at the junction of waveguide A and coaxial line E, the diode being connected to the centre conductor of the coaxial line proper via an impedance transforming line W the portion U of which is formed to provide a low-pass filter section which at the idler frequency forms a low-impedance reactive connection across the coaxial line. The other end terminal of the diode is connected to a coaxial short-circuited section Y which presents a short circuit at the idler frequency but an inductive reactance at the signal frequency. In operation pump energy is applied to the waveguide A tuned by piston B and having a cut-off frequency which is above the signal and idler frequencies. The signal to be amplified is applied along the coaxial line and the equivalent circuit, Fig. 3 (not shown) comprises a source connected in series with the diode and an inductor representing the inductance of the section Y and the inductance presented at the signal frequency by the filter section U. The idler frequency is substantially the same as the series-resonant frequency of the diode, the equivalent circuit Fig. 4 (not shown) comprising the diode inductance and capacitance and the signal source, the filter section U presenting a very small reactance represented by a capacitance connected across the signal source and the section Y effectively connecting one terminal of the diode to the earthy side of the source. In the arrangement of Fig. 5 (not shown) the filter section U has the large-diameter part adjacent the diode formed with an internal idler-frequency halfwave short-circuit choke section filled with a dielectric material. The equivalent circuit for the signal, Fig. 6 (not shown) is the same as that of Fig. 3 except that the inductance of the section 7 is replaced by the inductance of the choke and for the idler frequency is the same as that of Fig. 4. In the embodiment of Fig. 8 (not shown) the coaxial line E is formed with an impedance-transforming taper and at the end adjacent the diode the central conductor of the coaxial line is formed With a short circuit choke section one half-wavelength long at the idler frequency.