baber/WOPTO huggingface dataset:
Patent GB-1466916-A (GB)
Title: Circuit with low power dissipation
IPC: G04F5/06
Filed: 1974-08-13
Abstract: 1466916 Transistor inverters; oscillators RCA CORPORATION 13 Aug 1974 [24 Aug 1973] 35621/74 Heading H3T To reduce power dissipation in a circuit with a complementary pair of transistors P 1 , N 1 , the conduction path through each transistor includes a controllable impedance element controlled by a feedback connection from the conductive path through the other transistor. As described the circuit is a C-MOS inverter and the controllable impedance elements are further MOS transistors P 2 , N 3  connected so that when the current increases through P 1  and P 2 , the falling voltage V C1  at 12 increases the impedance of N 2 , P 2  being similarly controlled when current increases through N 1  and N 2 . Resistors, in the form of P well transistors, dual transmission gates or other MOS devices may be included between P 1  and P 2  and between N 1  and N 2 , Fig. 6 (not shown), or between P 2  and V DD  and between N 2  and V SS , Fig. 7 (not shown). A crystal controlled positive feedback circuit C o C i R B  may be provided so that the inverter oscillates.
Patent GB-618754-A (GB)
Title: Improvements relating to power steering mechanism for tractor-trailer combinations
IPC: B62D1/12
Filed: 1946-12-02
Abstract: 618,754. Steering-gear for tractor-trailer combinations. LETOURNEAU, Inc., R. G. Dec. 2, 1946, No. 35679. Convention date, Jan. 15. [Class 79 (v)] A power steering mechanism for a tractortrailer combination comprises a reversible multiple speed prime mover, controllable by the driver to give different speeds in each direction. The prime mover is preferably an electric motor having a low-speed winding and a high-speed winding. In Fig. 1, the twowheeled tractor 1 having a rear platform 7 which carries the electric power steering mechanism 6 for applying relative steering movement between the tractor and draft arm 5 of the two-wheeled trailer 3. The electrical system, Fig. 2, comprises an engine-driven heavy duty generator 12 and a three-wire energizing circuit 13 supplying the high-speed winding 10 or low-speed winding 11 of the reversible motor 9 through reversing switches 16 and 17 respectively. The reversing switches are actuated by a battery 21 by means of the switches 22 which are controlled. by rocking levers 27 mounted in front of the driver and under grab handles 29 so that the driver can grip the handles and move the levers 27 by his fingers. Movement of one lever 27 gives a high geared steering for forward or reverse travelling and the other gives low gear steering when travelling in reverse.
Patent GB-760204-A (GB)
Title: Oil purifying device for internal combustion engines
IPC: F16N39/00
Filed: 1954-12-10
Abstract: 760,204. Centrifugal separators. AKTIEBOLAGET SCANIA-VABIS. Dec. 10, 1954 [Jan. 7, 1954]. No. 35778/54. Class 23. [Also in Group XXXIV] For purifying lubricating oil in an internal combustion engine a cyclone 13 is inserted in a conduit between the sump 2 and the parts 5 of the engine to be lubricated, the cyclone dividing the oil into two streams, the one which has the lesser content of impurities being passed through a conduit 9 to the parts 5, and the other being passed through a filter 8 to the oil sump 2. The filter effluent may be connected to the conduit 9 with a turn over device provided for delivering oil from the filter 8 to the parts 5 when the engine speed is low, and delivering oil from the cyclone to the parts 5 when the engine speed is higher. A reduction valve 6 may be connected to the conduit 9 to limit the lubricating oil pressure. The filter 8 may be provided with a restricting device 10.
Patent GB-1368992-A (GB)
Title: Musical toys
IPC: G10D13/08
Filed: 1972-07-19
Abstract: 1368992 Musical instruments A GREENWOOD 19 July 1972 [29 July 1971] 35811/71 Heading G5J A musical toy comprises keys 14 and bells 16 fixed to the ends of spring strips 12 by rubber elements 22 which also carry clappers 24. The strips 12 are fixed in a metal base-plate 10 in slots formed by bending portions 20 of the plate 10 out of its general plane and are fixed similarly to the keys 14. The plate 10 is a segment of a circle. The bells 16 are arranged in ascending order of pitch.
Patent GB-465902-A (GB)
Title: The manufacture of azodyestuffs
IPC: C09B31/06
Filed: 1935-12-27
Abstract: Azo dyes which are capable of forming metallic complex compounds are made by coupling diazo compounds with 5-aminoquinoline or its substitution products having a free 8-position, further diazotizing the aminoazo dyestuff formed and coupling it with a coupling component.  They are similar to those described in Specifications 443,163 and 447,251.  When the intermediate aminoazo dyes or the final disazo dyes are treated with copper compounds the copper complex compounds formed are fast to light.  The following dyestuff is described: 2-aminoanisole-4-sulphonic --> 5-aminoquinoline --> N-m-carboxyphenyl-J acid (dyes cotton violet); the copper complex compound made by treating the dye with copper sulphate in acetic acid gives bright greenish blue shades on cotton.
Patent GB-776950-A (GB)
Title: Liquid containers for dropping by aircraft
IPC: B65D37/00
Filed: 1954-12-13
Abstract: 776,950. Packaging liquids; portable containers. MARELLE, R. Dec. 13, 1954, No. 35952/54. Classes 66 and 94(1). A container for liquids, suitable for being dropped to the ground from aircraft without bursting, comprises two sheets a of flexible material joined together along a line c defining a central pocket d containing the liquid and also along lines e so that the joins constitute yieldable barriers which can yield successively when the container hits the ground. The joins may be each constituted by bellows secured to the two sheets, or the sheets may be directly joined ; the sheets may be of a permeable material provided on their inner faces or on both faces with an impermeable film. The outer parts of the container act as stabilizers during fall so that the container is maintained horizontal. If desired the container may itself be contained in a second container to further minimise the risk of loss of the liquid by bursting.
Patent GB-833994-A (GB)
Title: Improvements in or relating to pneumatic tyres
Inventor: SMITH REGINALD SARGENT JAMES
IPC: B60C3/02
Filed: 1955-12-16
Abstract: 833,994. Tubular tyres. DUNLOP RUBBER CO. Ltd. Nov. 30, 1956 [Dec. 16, 1955], No 36089/55. Class 144 (2). A tubular cycle tyre comprises a band 1 formed from convolutions of filamentary material, such as rubberized cotton cord progressively wound in continuous lengths in oblique zig-zag fashion from side to side on the exterior of a former, the included angle between the continuous lengths at each edge of the winding being substantially less than 180 degrees and the winding having a slight lag or lead to provide a double layer band which at any cross-section shows parallel obliquely-directed lengths in each layer with those in one layer being oppositely directed to those in the other layer, and the band being enveloped around a valved inner tube and having its edges 4, 5 secured together at the inner periphery 6 of the tubular tyre so formed. As shown, an annular internal tongue of tape is sewn to one edge of the band to overlap the abutting edges 4, 5 of the tyre, the edges 4, 5 being then sewn together by thread 7 and the sewn joint finally being covered by a tape 8. A pre-vulcanized tread 9 is adhered to the tyre, and the inner tube may be vulcanized to the tyre to provide a " tubeless " construction. In alternative arrangements, the cord winding may be such that each length thereof across the width of the band 1 may extend at different angles to the circumferential lineX-X over different parts of said length. In place of the sewn joint 7, the edges 4, 5 of the band may be joined by vulcanization thereto of the tongue 3. Specification 808,341 is referred to.
Patent GB-1359310-A (GB)
Title: Alkaline battery cell
IPC: H01M10/34
Filed: 1971-08-02
Abstract: 1359310 Alkaline storage cell GATES RUBBER CO 2 Aug 1971 [3 Aug 1970] 36143/71 Heading H1B The disclosure is similar to that of copending Application 36145/71 but the claims are all directed to the complete cell. The lamina of the laminate-type separator adjacent the zinc anode may alternatively consist of microporous rubbers or plastics and the other lamina may be of regenerated cellulose.
Patent GB-1157523-A (GB)
Title: Compressor Lubrication Arrangement.
IPC: F25B31/00
Filed: 1966-08-12
Abstract: 1,157,523. Bearings; lubricating. LENNOX INDUSTRIES Inc. 12 Aug., 1966 [24 Oct., 1965], No. 36293/66. Heading F2A. [Also in Division F1] The crank-case 17 of a hermetically sealed motor-driven compressor comprising piston 28 reciprocated in a cylinder block 15 by the eccentric portion 29 of a vertical crank-shaft 30 is maintained at a higher pressure than the enclosing casing 12, 13 by a fan 105 rotatable with the crank-shaft, whereby lubricant is expelled from the crank-case 17 into the annular sump space between the block 15 and the casing 12, 13. The fan 105 is in the form of a hollow annulus, Fig. 2, divided into sectorshaped compartments 111a, 111b by radial partitions 110 and is secured to the crank-shaft 30 by a sleeve 106. Suction gas within the casing 12, 13 enters the compartments 111a through an inner ring of apertures 114 in the upper wall of the annulus and is discharged through an outer ring of apertures 116 in the lower wall which communicate through a passage 120 with the crank-case 17. Lubricant is drawn from the sump through an opening 84 in a thrust bearing 83 and is forced through longitudinal passages 90 in the crank-shaft leading to crankshaft main bearings 80, 100, 102 and crankbearings 92-95. Any lubricant which spills from the upper main bearing 100 flows down the inside of the sleeve 106 where it gains access through inlets 118 to two of the fan compartments 111b through ports 118 and is expelled through the passage 120 back to the crank-case. Gas is admitted to the compressor cylinders through ports 70 and is discharged to an annular baffle chamber 56.
Patent GB-924731-A (GB)
Title: An improved levelling valve for vehicles with pneumatic or hydraulic suspension
Inventor: PACAUD BERNARD FERNAND DIDIER
IPC: B60G17/052
Filed: 1958-11-13
Abstract: 924,731. Adjusting vehicle body height. DUNLOP RUBBER CO. Ltd. Nov. 4, 1959 [Nov. 13, 1958], No. 36462/58. Class 108(2). A levelling valve for a vehicle having a pneumatic or hydraulic suspension system comprises inlet and exhaust valves 19, 21 actuated by a shaft 10 coupled to a vehicle axle, and a tubular piston 27 operable by repeated oscillations of a cam 26, on the shaft 10, to pump fluid into the hollow of the piston 27. As more and more liquid is pumped through one-way valves 32, 35, into the piston 27, a piston 33 is gradually displaced upwardly against spring pressure. Eventually the piston 33 engages and locks the cam 26 (and thus the shaft 10) against movement. Sustained pressure on the piston 27 due to a change in loading is relieved by fluid leaking past the piston 33 and through holes 38 in the piston 27 to a chamber 12, thus permitting correction of the level of the vehicle.
Patent GB-360710-A (GB)
Title: Improvements in curbs, fenders and the like
IPC: F24B1/198
Filed: 1930-12-05
Abstract: 360,710. Curbs. CO - OPERATIVE WHOLESALE SOCIETY, Ltd., 1, Balloon Street, Manchester, BAILEY, H. H., Pockerley Farm, Beamish, Co. Durham, WOODHEAD, A., Scarborough House, Coalway Road, Penn Field, Wolverhampton, and THOMPSON, L., 71, Selbourne Road, Dudley, Worcestershire. Dec. 5, 1930, No. 36685. [Class 126.] The metal former carrying the ornamental covering g of brass &c. and built up of sheet metal has its parts secured together by wetding. The former comprises a front and two side members of rightangle section with inwardly bent flanges d and diagonal strengthening webs f.
Patent GB-916874-A (GB)
Title: An improved radiant heating appliance
IPC: F24C15/24
Filed: 1959-10-29
Abstract: 916,874. Radiants. RAINSFORD & LYNES Ltd., and LYNES, R. K. Oct. 27, 1960 [Oct. 29, 1959], No. 36700/59. Class 126. A radiant comprises a spirally wound expanded or perforated metal sheet 4 mounted within an open-sided housing. The spiral 4 is supported by a spider (not shown) resting on a ring screwed at 8 to the inner wall of the tubular base 5 of the housing. Tie-rods 10 extending from feet 9 support a cap 11 which has an integral circular flange 12a surrounding the spiral 4 and a spiral flange (not shown) en- . gaging between the coils of the spiral 4. The cap 11 may have a central aperture (not shown) and support cooking utensils.
Patent GB-1029136-A (GB)
Title: Copolyesters
IPC: C08G63/183
Filed: 1962-09-28
Abstract: Copolyesters are made by reacting a mixture of (a) terephthalic acid or an ester-forming derivative thereof, (b) ethylene glycol, and (c) neopentyl glycol; the proportions of the two glycols being such that the copolyester contains 86 to 15% of ethylene teraphthalate units and 14 to 85% of neopentyl terephthalate units.  Polyesterification may be effected in the presence of the usual catalysts and flatling agents (e.g. porous silica).  In examples, the ester-forming derivative of terephthalic acid used was dimethyl terephthalate. Some of the copolyesters are soluble in toluene, xylene, methyl ethyl ketone, dioxane, cyclohexanone, acetophenone tetrohydrofuran chloroform ethylene dichloride and 2-nitropropane.  The polyesters are useful in the manufacture of films, fibres, ribbons and laminates (see Division B5).  Reference has been directed by the Comptroller to Specification 915,779.
Patent GB-1158401-A (GB)
Title: Stack Structure and Apparatus Treating and Controlling Flow of Gases to and from Stack
IPC: B01D47/02
Filed: 1966-08-17
Abstract: 1,158,401. Treating gases with liquids. JOHN ZINK CO. 17 Aug., 1966 [13 Oct., 1965; 8 Dec., 1965], No. 36888/66. Heading B1R. [Also in Division F4] Apparatus for treating gas flowing to a stack, e.g. a flare stack, outlet comprises a housing 11 fitted with an internal wall 22 which supports a volume of liquid e.g. water 31, the gas passing into an inverted cupshaped member 32 submersed in the liquid via a pipe 29 in communication with the space below wall 22 and a further co-axial pipe 33, said gas then leaving member 32 through ports 43 or under excess pressure through annular space 46 between housing 11 and depending flange 44 of the member 32. At the outlet end of pipe 33 in a gas distributing member 37 provided with radial vanes 38. The gases pass to the bearer outlet via pipe 10 extending from the top of housing 11 and any liquid entrained in the gases collect on a baffle 48 surrounding the inlet to pipe 10. The gases enter housing 11 through a tangential inlet 26 and pass around annular space 24 formed 'by baffle 23. Any liquid particles in the gases are deposited on the housing wall and collect in a wall 17 fixed within the housing and provided with drain conduit 18.
Patent GB-444662-A (GB)
Title: An improvement in or relating to alternating-current electric drives
IPC: H02P5/74
Filed: 1934-12-28
Abstract: 444,662. Motor-driving arrangements. BROADBENT & SONS, Ltd., T., and HALLITT, W., Central Ironworks, Huddersfield. Dec. 28, 1934, No. 37113. [Class 35] [See also Group XXXVII] Means for bringing a structure, such as a swing bridge, accurately to rest in a predetermined position, include a main synchronous motor a coupled by reduction gearing h to an auxiliary small power synchronous motor k, the shaft of the motor a carrying a drum c provided with spring-pressed shoes d which, when the motor a is at rest, grip frictionally a disc or pulley f carried by the low speed shaft of the gearing h, but when the motor a is running, are thrown clear centrifugally and leave the motor k free. When the bridge approaches the " nearly landed " position, the motor alpha is automatically switched off and a brake applied. Subsequently, the brake is released and the motor k switched on. The friction drive being engaged, the bridge is moved slowly to the landing stops, whereupon the motor k is switched off. When reopening the bridge, the two motors may be switched on together. Catches may be provided to lock the bridge against the landing stops.
Patent GB-893743-A (GB)
Title: Improvements in or relating to document handling apparatus
IPC: G06K13/12
Filed: 1959-11-02
Abstract: 893,743. Magnetic couplings. BURROUGHS CORPORATION. Nov. 2, 1959 [Nov. 13, 1958], No. 37133/59. Class 35. [Also in Group XVI] In apparatus for automatically stacking and edge-aligning documents (see Group XVI), feed rollers 84 for feeding documents into a hopper are driven through a hysteresis clutch-control mechanism. A shaft 90 is non-rotatably mounted in supports 94, 96 and has rotatably mounted thereon an annular body member 98. A cup-like member 100 engages the periphery of the member 98 and is rotatable relatively thereto within the limits imposed by a pin-andslot connection 102, 106. Annular magnetic members 108, 110 are secured to the members 100, 98, respectively. Each of the members 108, 110 has a plurality of North and South poles arranged alternately about its circumference, Fig. 5. A collar 112 rotatably mounted on the shaft 90 carries an annular flange 116 of magnetically permeable, high hysteresis loss material, e.g. a cobalt steel alloy, positioned between the magnetic members 108, 110 and is secured to a tube 122, also rotatably mounted on the shaft 90, which carries the rollers 84. The members 98, 100 are rotated by a capstan 126 and produce a rotating magnetic field across the air gap defined by the poles of each magnet; the flange 116 is magnetically coupled to the rotating magnets 108, 110 and thus transmits the torque of the members 98, 100 to the rollers 84. The maximum torque output is obtained when the magnets are so oriented that the poles of the one are aligned with opposite poles of the other. The minimum torque output is obtained when the poles of one magnet are aligned with like poles of the other. The positions of the magnets, and hence the amount of torque applied to the rollers 84, are adjusted by turning the member 100 in relation to the member 98. The torque output is adjusted so that when a predetermined amount of friction is applied to the rollers 84 the clutch slips. Specifications 881,016 and 893,744 are referred to.
Patent GB-1533757-A (GB)
Title: Internal combustion engine with an arrangement for controlling the amount of fuel injected
IPC: F02D1/06
Filed: 1976-09-08
Abstract: 1533757 Fuel injection apparatus DAIMLER BENZ AG 8 Sept 1976 [13 Sept 1975] 37253/76 Heading F1B A pneumatic governor for a fuel injection pump is actuated from a Venturi signal via a vacuum amplifier to adjust a central pivot point 13 of a lever 10 controlling the fuel control rod 5 in response to movement of accelerator control 1, the governor controlling maximum speed, idle speed, and a section of the speed range where compensation for speed increase at constant accelerator control position is experienced. Springs 39, 18 and 38 respectively define the above speeds by coacting against the diaphram 16 as it is moved inwardly of vacuum chamber 17. The vacuum line 19 is supplied via a valve which may be connected to atmospheric pressure for starting, the amplified Venturi vacuum for running, and to the vacuum amplifier low-pressure source to stop the engine. The lever 10 has adjustable idle and full speed stops 51, 50 and the amplifier may have an adjusting spring. The valve may be formed in combination with the ignition switch.
Patent GB-900098-A (GB)
Title: Improvements relating to mechanical diggers and excavators
IPC: B66C23/86
Filed: 1958-11-20
Abstract: 900,098. Shovelling machines. MASSEYFERGUSON Inc. Nov. 20, 1958 [Nov. 25, 1957], No. 37326/58. Class 68 (1). In a shovelling machine the shovel-carrying jib 21 is pivotally supported on a king post 20 journalled in bearings 14, 15 in spaced lugs 11, 12 secured to the frame 10 of the machine. The post 20 is swung through a limited arc by an hydraulically-actuated, piston-cylinder motor 23 driving a shaft connected to the king post by a splined coupling 18, 26. The casing 24 of the motor 23 is also secured to the adjacent lug 11 by a splined connection 27, 28. This latter connection allows of easy repositioning of the motor on the lug in order that the arc of swing of the king post may be moved around the axis of the king post when such an adjustment is required.
Patent GB-428278-A (GB)
Title: Improvements in and relating to liquid spraying devices
IPC: B05B11/06
Filed: 1934-12-31
Abstract: 428,278. Spray - producers. SANDIG, E., and KRAPFL, A., (trading as SANDIG & KRAPFL), 73, Huttengasse, Vienna. Dec. 31, 1934, No. 37408. Convention date, Jan. 5. [Class 69 (iii)] An atomizer for scent &c. comprises an air pump cylinder Z and a liquid container B co-axially mounted one above the other within a cylindrical casing M which is provided with a cover D, against which, when not in use, the atomizing nozzle a<1> is pressed by a spring f which also bears against the pump piston k. The liquid receptacle and pump cylinder may be formed of a single tube divided by a partition t, through which passes an air tube r having a lateral opening g to eject and atomize liquid through the nozzle a<1>. The pump piston k has a rod b bearing against the end of the casing M. A thumb piece o which serves also as a filler opening projects through a slot S in the casing M.
Patent GB-1352010-A (GB)
Title: Phosphates as lubricant additives
IPC: C07F9/12
Filed: 1971-08-11
Abstract: 1352010 Orthophosphates ESSO RESEARCH & ENG CO 11 Aug 1971 [21 Aug 1970] 37737/71 Heading C2P [Also in Division C5] There are disclosed a number of specific phosphates within the general formula wherein the three R's (which are identical) are Me, Et, Bu or cyclohexyl radicals and Ar is a p-phenylene, 1,4-naphthylene or 9,10-anthrylene radical optionally bearing additional substituents selected from Me, Et, OMe, OEt, octanoyloxy, lauroyloxy and stearoyloxy. These compounds are prepared by reacting P(OR) 3  with O = Ar<SP>1</SP> = O where Ar<SP>1</SP> is a quinonoid radical corresponding to Ar. In the reaction of quinizarin dilaurate with trimethyl phosphite the compound  may be formed as a by-product.
Patent GB-992657-A (GB)
Title: Improvements in or relating to cylinder liners for internal combustion engines
Inventor: BLACKITH FREDERICK
IPC: C23C4/18
Filed: 1962-10-05
Abstract: Al is sprayed on to the outside of a grey cast iron wet cylinder liner of an I.C. engine to reduce the effect of cavitation erosion. The method consists in making the liner, heat treating it, spraying Al or Al alloy on to its outside, and melting and fusing the Al or Al alloy to the Fe by heating with an inductor ring which is passed along the outside of the liner.
Patent GB-1364197-A (GB)
Title: Process for the preparation of oxocarboxylic acid amides and oxo carboxylic acids
IPC: C07C231/10
Filed: 1972-08-14
Abstract: 1364197 Oxocarboxylic acids and amides thereof MERCK PATENT GmbH 14 Aug 1972 [21 Aug 1971] 37802/72 Heading C2C Oxocarboxylic acids and amides thereof, some of which are novel, are prepared by treating cyclic dicarboxylic acid imides with Friedel- Crafts catalysts, the reactions being carried out either in the presence of compounds which contain aromatic, hetero-aromatic or hydroaromatic rings or double bonds, or the cyclic dicarboxylic acid imides must already contain such rings or double bonds, and, if desired, hydrolysing the resulting amides. 3 - (2 - Chloro - 5 - methoxybenzyl) - 3 - methylglutarimide is obtained by reacting 2-chloro-5- methoxybenzyl-magnesium chloride with 2,6- dichloro-4-methylpyridine. The following imides were prepared in a similar manner:- 3-(2,5- dimethoxybenzyl) - glutarimide, 3 - (3,5 - dimethoxybenzyl) - glutarimide, 3 - (3 - methoxybenzyl) - glutarimide, and 3 - (2 - chloro - 5- methoxybenzyl) -glutarimide. Pharmaceutical compositions, suitable for parenteral, enteral or topical administration, contain the above novel acids or amides in admixture with inert, physiologically acceptable carriers or excipients.