baber/WOPTO huggingface dataset:
Patent GB-824745-A (GB)
Title: Improvements in or relating to alternating current signal transmission circuits
IPC: H04B1/64
Filed: 1957-09-27
Abstract: 824,745. Automatic volume control. WESTERN ELECTRIC CO. Inc. Sept. 27, 1957 [Oct. 11, 1956], No. 30362/57. Class 40 (4). [Also in Group XL (c)] In a transmission circuit a vario losser is controlled by rectification of the transmitted carrier frequencies or of a pilot frequency, the rectified current being applied to the vario losser over a transistor which has a capacitor connected across two of its electrodes thereby to increase the time delay between input and output. The arrangement is used in a rural carrier telephone system as described in Specificatly 792,419 in which terminal and repeater equipment is transistorized and pole mounted. To decrease current consumption silicon diodes are used in the vario lossers and the arrangement overcomes their inherently small time constant and also aids their linear operation. Carrier frequencies for one direction of transmission are grouped above those for the other direction. As shown in Fig. 2, silicon diodes 24, 25 are shunt connected across a portion AB of a line between directional filters in a repeater and lie in parallel in the emitter circuit of PNP transistor 39. The transmission passes from B to a line amplifier, a pad, and pilot filter if necessary, and is applied to a two-stage transistor amplifier 28 of the kind described in Specification 777,627, [Group XL (c)]. The output of amplifier 28 is rectified at 30-33 and applied as a forward emitter bias to the base of transistor 39 in opposition to the threshold back-bias provided by battery 36, avalanche breakdown diode 37 and resistor 38. Capacitor 41 between base and collector increases the circuit time constant to between 6 and 7 seconds without the necessity of a large smoothing capacitor. The amplification provided by the transistor enables the silicon diodes to be worked with a larger current and consequently on linear portions of their characteristics. Specification 792,420, [Group XL (c)], also is referred to.
Patent GB-1514625-A (GB)
Title: Table tennis bat
IPC: A63B102/16
Filed: 1976-07-21
Abstract: 1514625 Table tennis rackets NIPPON TAKKYU CO Ltd and NISSEI CO Ltd 21 July 1976 [24 July 1975] 30399/76 Heading A6D  A table tennis racket is of laminated construction composed of at least one wooden board 10 and at least one layer 11 having carbon-fibre reinforcements therein. The racket shown also has a grip 3, a sponge layer 7, a wooden layer 12 and a grip 13. The racket may consist of one, two or three layers of carbon fabric re-inforced resin sheets each disposed between wood layers, see Fig. 4 (not shown) and the carbon fibres may be in the form of a knitted fabric, a woven fabric or a web of non-woven fabric composed of staple fibres, the fibres being arranged for example as depicted in Figs. 5A. 5D (not shown). The fibres may be impregnated with an epoxy, phenol or polyester resin. For numerous minor details concerning materials employed, relative thicknesses, method of manufacture and playing characteristics the Specification should be referred to.
Patent GB-1268767-A (GB)
Title: Electro-hydraulic and electro-pneumatic servo valves
Inventor: GODDARD DAVID JOHN
IPC: F15B13/043
Filed: 1968-06-26
Abstract: 1,268,767. Fluid-pressure servomotor systems. DOWTY TECHNICAL DEVELOPMENTS Ltd. June 24, 1969 [June 26, 1968], No.30404/68. Heading G3P. An electro-hydraulic or electro-pneumatic servovalve has a valve member 3 carrying a nozzle 19 or 21 and movable axially by fluidpressure in a working space 37 or 38, an electric force motor 28 or 34 acting on an obturator 24 or 29 to vary the restrictive effect on flow through the nozzle, a fixed restrictor 39 or 41 feeding fluid from a source 14 to the nozzle, and a connection from the junction between the nozzle and the restrictor to the working space whereby movement of the obturator will adjust the pressure in the working space to move the valve member, the pressure loss in the nozzle being greater than the pressure loss in the restrictor. The valve also has an exhaust port 18 and may supply a double-acting ram from service ports 12, 13. A single motor may be used to control the valve and one nozzle may be omitted so that one working space is maintained at the same pressure as the supply. The pressure drop at the nozzle is two to four times greater than that at the restrictor.
Patent GB-230166-A (GB)
Title: Improvements in and relating to electro-magnets for unlocking miners' electric lamps
Filed: 1923-12-04
Abstract: 230,166. Thor Electric Safety Lamp Co., Ltd., and Stretton, T. Dec. 4, 1923. Electromagnets.-An electromagnet for unlocking a miner's electric lamp is automatically energized when the lamp is brought into the position in which the magnet core can attract the locking bolt. The switch comprises a rod c sliding in one of the frame parts b and located beneath the projecting portion a<1> of the core. The rod has at its outer end a curved part c<1> and at the other end a cam c<2>. When the lamp is brought into the position shown in dotted lines, the rod is pressed in against the action of the spring d, and the magnet circuit is closed at the contacts g<1>, g<2> by the cam c<2>.
Patent GB-177559-A (GB)
Title: Improvements relating to the protective progressive distillation and gasification ofsolid carbonaceous matters
IPC: C10B57/18
Filed: 1920-10-28
Abstract: 177,559. Lewis, G. P. Oct. 28, 1920. Addition to 177,556. Discharging. - In a gasification pro. cess as described in the parent Specification in which carbonaceous material is distilled in a retort the residue being gasified in a producer, the passage of the coke from the retorts a to the producer b through hopper chambers c is facilitated by rotating rollers d. The retorts may be separated from and placed by the side of the producer, to the hopper chamber of which the coke is fed from the retorts by a conveyer.
Patent GB-923876-A (GB)
Title: Improvements in tools
Inventor: CHALMERS JAMES
IPC: B25B27/02
Filed: 1961-08-24
Abstract: 923,876. Restoring shape of articles; anvils. CHALMERS & CO. (AGRICULTURAL & MOTOR ENGINEERS) Ltd. Feb. 8, 1962 [Aug. 24, 1961], No. 30570/61. Class 83 (4). A device for removing dents from body panels comprises an elongate member having attached thereto a panel-gripping element and provided with a stop spaced apart from the gripping element, there being a weight slidably mounted therebetween on the elongate member. Referring to Fig. 2, a steel shaft 11 is threaded at both ends, thereby engaging an end stop 12 and a chuck 18; it also carries a rubber sleeve 14 and a hexagonal section steel striker 15. In operation, a hole is punched in a body panel in the region of a dent, a self-tapping screw 17 inserted in the chuck and then screwed into the punched hole. The dent is effectively hammered from its blind side by thrusting the weight 15 against the collar 14. Various grippers or supports may be screwed to the shaft instead of the chuck (Figs. 3 and 4, not shown), which may for example be used for imparting a pull on a dented wing rim. The stop 12, which also forms a handle, may be firmly anchored to the rod 11 by riveting a protruding thread of the shaft over the end of the handle.
Patent GB-409370-A (GB)
Title: Improvements in or relating to automatic control mechanism for record-card-controlled statistical machines
Filed: 1932-10-31
Abstract: 409,370. Record - card - controlled statistical machines. BRITISH TABULATING MACHINE CO., Ltd., Victoria House, Vernon Place, Southampton Row, London. Oct. 31, 1932, No. 30590. Convention date, Nov. 25, 1931. [Class 106 (i).] A machine of the kind having, for each control column, two hole reading brushes UB, LB or the equivalent which read two successive cards simultaneously and having an electromagnetic relay 30 in series with both brushes and controlling a pair of contacts 29, is characterised in that each relay 30, 38 has a holding coil 39. When the main coil 38 is energized it closes the usual control contacts 29 and also closes holding contacts 37 which energize the holding coil 39, the latter thereafter holding both contacts 29 and 37 closed. The armature of relay 30 closes contacts 29 and 37 by raising pins on the latter. The holding circuit is subsequently broken by cam contacts 42. In a modification, these contacts 42 are omitted and the holding circuit is broken at the correct time by the energization of a third, opposed winding on the relay which neutralizes the windings 38 and 39.
Patent GB-208155-A (GB)
IPC: C07C17/156
Filed: 1923-12-05
Abstract: Benzene is chlorinated by passing its vapour in admixture with hydrogen chloride and oxygen over a catalyst at a temperature of at least 300 DEG  C; the product mainly comprises monochlorbenzene. According to the example, a mixture of benzene vapour with oxygen and the vapour of commercial hydrochloric acid is passed through a tube of acid-proof material containing pieces of pumice soaked with copper chloride and heated to 400 DEG  C.  The products are condensed, washed with alkali, and frictionally distilled to separate the chlorbenzene from unaltered benzene and the small quantity of higher chlorinated products.
Patent GB-336780-A (GB)
Title: Improvements in anti-skid devices for vehicle wheels
IPC: B60C27/02
Filed: 1929-10-10
Abstract: 336,780. Billing- ham, J. Oct. 10, 1929. Tyre gaiters.-A tyre gaiter comprises a pair of cross-chains 1 connected by solid end bars 2 having closed slots 3, 4, to receive the end links of the chains and the fastening straps 5. respectively.
Patent GB-1152993-A (GB)
Title: Improvements relating to Sludge Handling Plant
Inventor: MULCAHY EDWARD WILLIAM
IPC: C02F11/121
Filed: 1965-07-20
Abstract: 1,152,993. Settling tank. E. W. MULCAHY. 20 July, 1966 [20 July, 1965], No. 30719/65. Heading B1D. In a sludge thickening plant the settling tank 17 has a sludge collection zone 19 and a travelling pump. 25 and scraper unit 24. The pump comprises a pipe extending into the sludge connected to a compressed air source 26.
Patent GB-876217-A (GB)
Title: Improvements in fluid pressure operated positional actuators
IPC: F15B9/08
Filed: 1959-09-09
Abstract: 876,217. Fluid-pressure servomotor-control systems. WESTINGHOUSE BREMSENG.m.b.H. Sept. 9, 1959 [Sept. 9, 1958], No. 30745/59. Class 135. A fluid-pressure operated positional actuator for a fuel injection pump 29 comprises a control piston 7 movable by pressure via a variable setting valve 3 against the action of a spring 23, a positioning piston 11, and a self-lapping valve device 12 operable in dependence upon the position of the control piston relative to the piston 11 to supply fluid pressure to, or vent, a pressure chamber 19 so as to maintain the position of the latter piston in accordance with the control piston, the control piston and the positioning piston being coupled together by a lost-motion device 7a, 11a. The piston 11 is provided with a hollow extension 7c cooperating with the valve 12. In operation, pressurized fluid, such as air, passes from a reservoir 1, through a pipe 9 into a chamber 10 and maintains the piston 11 in the position shown, the valve 12 seating on the latter piston. When the variable-setting valve 3 is operated, air passes through a pipe 4 to act on the control piston 7 moving it, together with the piston 11 until the pressure acting on the piston 7 is balanced by the spring 23; during this movement, the end of the extension 7c lifts the valve 12 from its seat and thereby allows pressure fluid from the chamber 10 to pass via a port 18, into the chamber 19 and move the piston 11 to the right until the valve 12 again seats on the latter piston and a pressure balance is obtained in chambers 10, 19, the valve 12 lapping the end of the hollow extension 7c which communicates with atmosphere through ports 20, 22. In the event of variation in load on the piston 11 from the injection pump 29 via links 14, 16, 27, 28, the valve 12 is either lifted off its seat thereby admitting more air into the chamber 19 or, air is leaked off from the latter chamber to atmosphere. A manually-operated control 25, 26 is provided for actuating the injection pump if the pressure system fails.
Patent GB-844248-A (GB)
Title: Improvements in or relating to the purification of gases
Inventor: NEWLING WILLIAM BARRY SAVILE
IPC: B01D53/52
Filed: 1956-10-09
Abstract: 844,248. Purifying gases. GAS COUNCIL. Oct. 7, 1957 [Oct. 9, 1956], No. 30803/56. Class 55 (2). In a process for removing H 2 S from fuel gases the gas is contacted with a reagent consisting of a suspension or solution of a copper compound or compounds in a hydroxide, carbonate or bi-carbonate of an alkali metal. The process may be effected in a single washing stage and a portion of the reagent continuously withdrawn and regenerated by filtering off the copper sulphide and contacting the resultant clear liquor with copper hydroxide to replenish its content of copper and again filtered before being returned to the washing stage. In an example the reagent contained in aqueous solution 40 p.p.m. of copper by weight and soda as carbonate and bi-carbonate equivalent to 4% sodium carbonate by weight and a gas containing 10 p.p.m. by volume in a single stage washing had its H 2 S content reduced to 0.1 p.p.m.
Patent GB-980936-A (GB)
Title: Improvements relating to continuous cooking of gelatinous substances, gelatinisable substances, fibrous matters and the like
IPC: A23L29/20
Filed: 1962-08-13
Abstract: 980,936. Sweets and confectionery; liquorice &c. extracts. H. KNOCH. June 14, 1963 [Aug. 13, 1962], No. 30887/62. Heading A2B. [Also in Division B1] In making jellied sweets and confectionery, e.g. containing liquorice &c. extracts, ingredients comprising starch, are mixed with water in a steam-jacketed vessel 10, Fig. 1, and heated to a temperature below the gelatinization point of starch, e.g. between 60‹ and 70‹C. The heated flowable mixture is then passed through a pipe 13 and a valve 14 to a pump 15, which delivers the mixture, through a pipe 16, into the chamber 18 of a steam injector 17. A steam jet 19 is located in the chamber 18, which has a venturi outlet 20, 21. Steam is supplied to the jet through a valve 23 and a pipe 22. Steam issuing from the jet creates suction in the chamber 18 and thus causes expansion of starch grains and atomization of the mixture. The mixture incorporating steam, e.g. at a temperature of 135‹C., is accelerated as it passes from the chamber 18 through the outlet 20, 21. The mixture then flows through a chamber 25, in which the starch is gelatinized, e.g. at a temperature between 125 and 145‹C and a pressure between 2.5 and 3.0 kg/cm<SP>2</SP> as indicated on a gauge 26. The mixture leaves the chamber 25 through a valve 28, emerges into a normal atmosphere through a flared discharge duct 29 and, after being mixed, if desired, with colouring, flavouring and/or medicinal substances, is collected in a mould or bin 32, wherein it may solidify into slabs, which may be formed into pastilles or rolled or extruded into rods, ribbons, tubes or sheets. A hood 30, having a fan 31, is provided around the duct 29 to remove vapours. According to example 1, the ingredients are:- wheat flour, sucrose, molasses or syrup, and licquorice extract. According to example 2, the ingredients are:-sucrose, glucose and maize starch. in extracting liquorice from washed, unpeeled liquorice root, it is crushed into chips and mixed with water in a closed vessel 10a, Fig. 2. The mixture is pumped, by the pump 15, into the steam injector 17, from which the mixture incorporating steam is discharged, through the chamber 25, the valve 28 and an open-ended, vertical tube 34, into a vessel 33. The aqueous liquorice extract is separated from the exhausted chips and evaporated and dried to form a powder or blocks. Gelatine, agar-agar, pectins and other carbohydrate gums may be extracted, similarly, from suitable comminuted raw materials and used, instead of starch, as ingredients of the sweets and sweatmeats. The mixture from the chamber 25 may be returned to the vessel 10 or 10a, through a valve 36 and a pipe 35. Specification 883,440 and U.S.A. Specification 2,805,966 are referred to.
Patent GB-698743-A (GB)
Title: Improvements in hydraulic revolution speed governor for injection internal combustion engine
IPC: F02D1/00
Filed: 1950-12-20
Abstract: 698,743. Fluid-pressure servomotor-control systems. BOSCH GES., R. Dec. 20, 1950 [Dec. 24, 1949], No. 30984/50. Class 135 A speed governor for an I-C engine comprises a gear-pump 2 driven from the cam shaft of the engine-driven fuel injection pump and supplying liquid, e.g. fuel, under pressure through a passage 5 to a chamber 6a containing a servo piston 7 which actuates the injection pump control rod 14. The piston is coaxial with a control piston 19 the conical end of which co-acts with a bore 18 in the piston 7 to form an annular throttle opening 18a. Pressure liquid passes through the opening 18a into a chamber 6b the outlet 16 of which is throttled by a rod 17, whereby pressure builds up in the chamber and acts on the piston 19 against a spring 21. Thus the piston 7 takes up a position, when the engine is on speed, where the resultant force due to the pressures on opposite sides of the piston equals the force of a spring 8. An increase of speed will cause the pressure in the chamber 6b to increase and push the piston 19 against its spring to increase the opening 18a whereby the resultant force falls and the spring 8 moves the piston 7 and hence the rod 14 to decrease the fuel supply. When the pressure drops to zero, the spring 8 moves both pistons 7, 19 to cut off the fuel supply. If the pressure in chamber 6b rises unduly, piston 19 moves to exhaust the chamber via ports 31 to the inlet of pump 2. The control point of the governor is set by an arm 25 operable between stops and actuating a lever 23 simultaneously to increase the load of spring 21 and enlarge the outlet 16 and vice-versa.
Patent GB-1063444-A (GB)
Title: Carboxyalkylmercaptomethyl siloxanes and their production
Inventor: NIDERPRUM HANS
IPC: C08G77/28
Filed: 1964-08-04
Abstract: A siloxane of the average general formula <FORM:1063444/C3/1> wherein n has a value of from greater than 1 to 3, at least one of the siloxane units having the formula <FORM:1063444/C3/2> wherein R1 is Me or O 1/2 , R11 is H or <FORM:1063444/C3/3> m is 0 or 1 and <FORM:1063444/C3/4> is an acyl radical derived from a mono- or poly-basic saturated or unsaturated aliphatic, cycloaliphatic or aromatic carboxylic acid, or carbonic acid, and each R of the remaining siloxane units is an alkyl or aryl radical with or without inert substituents, can be made by reacting at - 10 DEG  to 150 DEG C., (a) a hydroxyalkyl-mercaptomethyl-polysiloxane and (b) phosgene or a chloride or anhydride of the desired carboxylic acid, and optionally (c) a mono- or poly-hydric alcohol, a polyalkylene-glycol or -glycolether, optionally in the presence of a tertiary N base and optionally in the presence of an inert solvent.  Examples are given. The starting siloxanes are described in Specifications 1,054,032 and 1,063,085.
Patent GB-1091499-A (GB)
Title: Improvements in or relating to apparatus for the malting of barley
Inventor: POULTON KENNETH WILLIAM
Filed: 1965-07-21
Abstract: <PICT:1091499/C6-C7/1> A machine for stripping a germination box 10, Fig. 3, as used in the malting of barley has a carriage 13 which is mounted for movement along the length of the box and which is operable to strip the box of malt progressively along its length in a number of unloading cycles, and the carriage has control means operable to move the carriage so that the unloading cycles are all substantially of equal time duration and the quantity of malt discharged during each cycle is substantially the same.  During a complete cycle the carriage reverses with the stripper blade 30 down, on reaching the bed of malt the stripper blade rides over the bed of malt during continued reverse travel, the carriage is stopped and after a waiting period, forward travel is initiated with the blade held down to discharge the malt.  The control means consists essentially of a first timer which determines the half-cycle time, a second timer setting the time during which the stripper blade rides over the malt, whereby predetermined equal quantities of malt are discharged during each cycle, and a third timer operable to initiate the forward movement of the carriage after a time interval which corresponds to that time measured by the third timer from the time the blade is lifted to the end of the half-cycle.  In this way the discharges of malt take place regularly even though the carriage has to travel farther back each time in order to take its next load.  The operation of the carriage backwards and forwards, which is effected by pinions 17 actuated by an electric motor, is checked by various stop switches, particularly overload detector switches 90 safeguarding against unusual build-up of malt, reverse safety switch 54 and a forward safety switch checking over-run of the carriage, a forward limit switch 79 and a sequence stop switch to deenergize the control mechanism and permit manual operation e.g. for allowing the blade to position itself behind the last load of malt in the box. The second timer is actuated by a switch 46 operated by the movement of a roller in a grooved cam Fig. 11A (not shown) forming part of, and pivoting with, the stripper blade 30.  Further timers provide for short dwell periods before the start of the carriage movements backwards or forwards.  If desired the forward movement of the carriage may be interrupted to provide two separate discharges of the malt.  A grain-levelling blade adjustable in height is also mounted on the carriage.  The germination box may have transporter sections forming extensions of the box enabling the carriage to be transferred to an adjacent germination box.
Patent GB-1170292-A (GB)
Title: Hydraulic Fluid Compositions
Filed: 1966-10-14
Abstract: 1,170,292. Functional fluid composition. MONSANTO CO. 14 Oct., 1966 [23 Dec., 1965], No. 31106/69. Divided out of 1,170,291. Heading C5F. A functional fluid composition comprises an ester or an amide of a phosphorus acid as major component of the base stock, a polymeric viscosity index improver and 0.3 to 5% by vol. of water. Preferred base stocks are dibutyl phenyl phosphate, 2-ethylhexyl diphenyl phosphate, tributyl phosphate and tricresyl phosphate. The V.I. improver may be a polyalkylacrylate, a polyalkylmethacrylate, a polyurethane, a polyalkylene oxide or a polyester. In the examples polybutyl methacrylate is used. Other fluids which may be present are silicates, silicones, monoesters, dicarboxylic acid esters, esters of polyhydric compounds, aromatic ether and thioether compounds, synthetic hydrocarbon oils, an alkyl benzene or dialkyl benzene, halogenated benzene or alkyl-substituted benzenes, monohalogenated diphenyl ethers or a chlorinated biphenyl. The functional fluid composition may be used as an hydraulic oil.