baber/WOPTO huggingface dataset:
Patent GB-945877-A (GB)
Title: Hydraulic apparatus
Inventor: BOWERS ERIC HIDER
IPC: B62D11/18
Filed: 1959-08-14
Abstract: 945,877. Motor vehicles. DOWTY HYDRAULIC UNITS Ltd. Aug. 8, 1960 [Aug. 14, 1959; Sept. 21, 1959], Nos. 27874/59 and 32074/59. Heading B7H. [Also in Divisions E1 and F2] An hydrostatic power transmission for transmitting power from a source 1, such as the engine of an earth-scraping vehicle, to a load, such as the earth engaging wheels 2, 5, comprises a pair of positive-displacement motors 2A, 5A connected in parallel with a positive-displacement pump 6, a mechanical connection between each motor and the load, one of the mechanical connections including a disconnectable clutch, and a valve 9 controlling the hydraulic connection to the motor having the clutch, and pressure responsive means 23, 29 to cause the clutch to engage when the pressure to the motor having the clutch is high and to disengage when the pressure is low. In the embodiment described, the engine 1 drives a pair of reversible, variable-displacement pumps 6, 7, pump 6 driving motors 2A, 5A connected to wheels 2, 5, and pump 7 driving motors 3A, 4A connected to wheels 3, 4. One motor 4A, 5A of each pair has a disconnectable clutch and valves 9, 11 are provided in the hydraulic connections leading to those motors. When the scraper of the vehicle is in use, the valves 9, 11 are open and the clutches engaged so that all four motors drive the vehicle at low speed. When the bucket of the vehicle is full, the clutches are disengaged and the valves closed to drive the vehicle at high speed. A flow-divider such as described in Specification 886,022 may be interposed in the connections from each pump to its motors so that, when both motors of a circuit are in operation, the flow is divided proportionally between the motors to prevent one wheel or the other slipping. The circuits may be interconnected by restrictors or one-way valves 16, 17 so that fluid from one circuit may flow to the other in the event of different pressures occurring in the circuit. The clutches are of the unidirectional type and two clutches operative in opposite directions, so that the vehicle can be reversed, are provided for each motor 4A, 5A housed in a unit 18 connected by reduction gearing 19 to the wheel. The clutches may be operated by piston-and-cylinder devices 23, 24 and 28, 29 operated by the pressure in the connections 26, 27 leading to the motor. In an alternative arrangement, a single piston having the opposite ends of its cylinder joined to the connections 26, 27 operates the clutches. In another embodiment, the pairs of motors drive a single wheel. The vehicle is steered by a mechanism which controls the differential setting of the pumps 6, 7 and the pivoting of a framework carrying the front wheels.
Patent GB-1091440-A (GB)
Title: Overload relay
IPC: H01H83/22
Filed: 1966-06-22
Abstract: 1,091,440. Automatic circuit-breakers. FEDERAL PACIFIC ELECTRIC CO. June 22, 1966 [June 28, 1965], No. 27882/66. Heading H2B. A trip-free circuit-breaker includes a carriage 116 slidable along a movable guide member 128 and carrying a movable bridging contact 114, the carriage 116 being restrained by latching surfaces (166a), (166b), on the enclosure wall (94) against movement under the biasing force of spring 136 towards the contacts-open position, and a releasing force deflects the guide member 128 in a direction which is transverse to its length to release the carriage 116 from the restraining surfaces. Thermal tripping upon overload or unbalance occurs with appropriate movement or relative movement of two parallel slide bars 66, 68, by bi-metals (38) (Figs. 1-4, not shown), engaging notches in the bars, a bell crank 74 pivoted to the bars 66, 68, engaging a portion 80 of the movable guide member 128 to deflect it and trip the breaker. A stop 82 on slide bar 68 engages a portion of calibrating means 84 which includes an adjustment screw 212 and ambient temperature compensating bi-metals 222, 224, fixed to a calibration lever 200. A resetter 182 is depressible to relatch carriage 116 or to break contacts 110, 114a, by inserting a finger 192 therebetween, a spring 186 biasing the resetter 182 outwardly of the breaker enclosure. The action of the resetter cam 190 on the reset cam portion 120 of carriage 116, and the movement of knob portion 118 of carriage 116 over the latching surfaces and cam surfaces and guide surfaces (172), (174), (176), (178), under the action of bias spring 136 and the mounting spring (134) of guide member 128, are fully described with reference to Figs. 7-14 (not shown). The contacts 114b, 108 are visible through a sighting hole (106), a helper cam 122 engages a surface 196 on a block 112 to ensure that the carriage 116 leaves the resetter 182 when the latching position is reached. Ventilation holes (104) are provided.
Patent GB-915086-A (GB)
Title: Improvements in fans
IPC: F04D17/16
Filed: 1960-08-11
Abstract: 915,086. Helico-centrifugal and axial-flow fans. BLACKMAN Ltd., KEITH, and HUMPHREY, D. Aug. 22, 1961 [Aug. 11, 1960], No. 27898/60. Class 110 (1). In a fan comprising a casing having a central cylindrical portion 1 and frusto-conical end portions 2, 3, the driving motor 31 is isolated from the corrosive, inflammable or hot gas stream by means of a transverse motor compartment 4 open at opposite ends to the exterior of the casing. The compartment 4 comprises side walls 21, 22 meeting the cylindrical casing portion 1 along parallel edges 23, 24 and 25, 26 and joined to transverse walls 5, 6 by means of inclined walls 11, 12, 17, 18. The walls 11, 12 which may be of convex curvature, meet the cylindrical casing portion 1 along helical edges 13, 14, the other edges 7, 8, 15, 16 of these walls being straight. The walls 11, 12 act as guide vanes conforming to the whirling motion imparted to the gas by the impeller 29, which rotates in the direction of arrow 28. Impeller 29 is of axial-flow type or, as shown, of helicocentrifugal type, as described in Specification 849,744. Inclined walls 17, 18 meet the transverse wall 6 along straight edges 9, 10 and meet the side walls 21, 22 along straight edges 19, 20 lying in the plane of juncture between the casing portions 1 and 2.
Patent GB-834070-A (GB)
Title: A pulley and cable gear for decking trolleys in multiple storey garages
IPC: E04H6/24
Filed: 1957-09-05
Abstract: 834,070. Handling vehicles in mechanical garages. MASCHINENFABRIK AUGSBERGNURNBERG A.G. Sept. 5, 1957 [Sept. 13, 1956], No. 28037/57. Class 78 (4). The two cables 15, 16 (Fig. 2) for moving a decking troller 2 in a mechanical garage into and out of a lift cage 1 pass from their anchorages 17, 18 on the decking trolley over pulleys 9, 10 on a pulley truck 8 which moves in the same direction as the decking trolley, to a pair of side-by-side drums 19, 20. In the construction illustrated the pulley truck 8 is of T-section (Fig. 4) and has a rack portion 11 driven by a pinion 26 on the same shaft as a pinion 21 driving gears 22 (Fig. 2) biased with the drums 19, 20. The pinions 21, 26 are driven through gearing 24 from a motor 25. The pulley truck 8 is guided by rollers 12 (Fig. 4) in guides 14 and the decking trolley 2 is guided by rollers 4 (Fig. 2) in wells 5, 6.
Patent GB-173843-A (GB)
Title: A new or improved apparatus for treating buildings with disinfectants and the like
IPC: A61L2/00
Filed: 1920-10-04
Abstract: 173,843. Pell, A. W. Oct. 4, 1920. Disinfectant liquids &c., delivering.-Apparatus for disinfecting buildings from a central point comprises a tank A in which the disinfectant to be sprayed is subjected to pressure produced by an air-pump N driven by an electric motor P. At the bottom of the outlet pipe D an adjustable filter is attached comprising a gauze casing L filled with a bundle of strings or wicks K, and screw-threaded to engage the pipe D, which is provided with a number of branch pipes E, E<2>, E<3>, E<4>, to carry the liquid to desired points. Reference has been directed by the Comptroller to Specifications 4052/95, [Class 103, Railway &c. vehicles], 18446/98, [Class 135, Valves &c.], 28222/06, and 150.607.
Patent GB-689336-A (GB)
Title: An automatic door stopper
IPC: E05C17/44
Filed: 1950-11-16
Abstract: 689,336. Door holders, bolts. WINNIKOW, S. Nov. 16, 1950 [Jan. 1, 1950], No. 28078/50. Classes 44 and 65 (i) A door holder in which the shaft 3 (Fig. 1) of the door handle 4a is provided with a lateral arm 4 connected to a bolt which is raised and lowered with respect to the floor when the handle is actuated, is characterized in that the arm is arranged within a lock casing 1 and is connected to the bolt by a slidable bar 6 located behind the plate 7 closing the lock casing, which plate is prolonged downwardly towards the floor. The bar, which is flat is pivoted at its upper end to the arm and at its lower end to the bolt which is cylindrical and is guided within apertured plates carried by the plate 7. The bolt may be tipped with rubber, and in the closed position of the door it enters a recess in the floor. In a modification (Fig. 5), a slot 13 in the bar and a pin 12 carried by the bolt 14 constitute a lost motion connection for reducing the movement of the bolt when the handle is actuated. The floor recess need not then be provided. The bolt is guided in apertured plates 14a, 14b, 14c, and is urged downwardly by a spring 16.
Patent GB-814176-A (GB)
Title: An impression cylinder lifting mechanism for oscillating cylinder printing machines
Inventor: WOLF HELMUT
IPC: B41F3/80
Filed: 1955-10-03
Abstract: 814,176. Printing-machines. DRUCKAUTOMATENWERK VEB. Oct. 3, 1955, No. 28094/55. Class 100(2) An impression cylinder lifting mechanism for oscillating- cylinder printing machines in which the impression cylinder is oscillated by a pinion secured to the cylinder shaft and driven by a rack on a reciprocating printing or type bed aranged beneath the cylinder, comprises a first lever system which controls the up and down movement of the cylinder during the return stroke of the bed when the lifting mechanism is set to printing position and a second lever system which controls the up and down movement of the cylinder during both forward and return strokes of the bed when the machine has been set to the non-printing position, the pinion being in full engagement with the rack at the points of reversal of the direction of the reciprocating bed at the end of each stroke whether printing or not printing. The impression cylinder 25, Fig. 4, is supported by a shaft 33 having blocks 23 slidable in bearings 34. The blocks 23, which are pressed upwardly by springs 24, are raised and lowered by toggle levers 19, 20. The lever 19, pivoted to the machine frame at 21, is actuated by levers 17, 18, and 14. The lever 14 is connected to a lever 10 through a shaft 13, such that rotation of a cam 2 mounted on a shaft 31 causes rocking of lever 14 through a lever 8 carrying a cam follower 7 and through a rod 9 connecting the levers 8 and 10. The lever 10 is urged by a spring 16, such that the cam follower 7 engages the cam 2. Thus, the cylinder is raised and lowered by the cam 2 which has two depressions in its circumference and rotates once for each revolution of the cylinder When it is not desired to print on a sheet, the cylinder 25 is raised and lowered during each forward and return stroke of the bed by the cam 2. During normal printing, the cylinder 25 is raised during the non-printing return stroke of the bed by a cam 1 on the shaft 31 having a single depression in its circumference The cam 1 engages a cam follower 3 carried by a lever 4 pivoted to a connecting rod 5 which rocks a lever 6 mounted on the shaft 13 and urged by a spring 15, such that the cam follower 3 engages the cam 1. In this case, the levers 6 and 10 are coupled together by a pin 28, Fig. 5, which engages bushes 32 and 30 serving as pivots for the levers 10 and connecting rod 9 and the lever 6 and connecting rod 5 respectively. The pin 28, Fig. 5, is axially pressed by a spring 29 towards the bush 30, but may be withdrawn by a cam surface 39 on a lever 26 brought into engagement with a plate 27 secured to the pin 28. The timing of the cams 1 and 2, Fig. 4, is such that the cylinder is always in fully lowered position at the end of each stroke of the bed, thereby ensuring that the cylinder driving pinion not shown, is in full engagement with a rack, not shown, on the bed, so as to prevent impacts during bed reversal.
Patent GB-505763-A (GB)
Title: Improvements in or relating to electrical musical instruments
IPC: G10H1/18
Filed: 1937-10-15
Abstract: 505,763. Valve amplifying circuits. COMPTON ORGAN CO., Ltd., J., and TAYLOR, J. 1. Oct. 15, 1937, No. 28095. [Class 40 (v)] [Also in Group XXXVIII] The gain of the amplifier is reduced substantially to zero after all the keys of an electrical musical instrument have been released, in. order to pre. vent stray potentials from generating background noises. In the Figure, the amplifier with input at 17, 18 and output at 19, 20 normally has a bias potential from a source 23, 24 applied to an additional grid 25 through resistances 26 ... 29, reducing the gain to zero. Operation of a key, if desired with a stop, energizes coil 30 and removes the bias. Condensers 32, 33 discharge through low resistances 28, 27 so that the loud-speaker functions substantially instantaneously. On release of the keys, the condensers are charged through a higher resistance 26 in addition so that muting is delayed. Specifications 388,036, 403,444, and 433,050, [all in Group XXXVIII], are referred to.
Patent GB-519835-A (GB)
Title: Improvements in or relating to the treatment of dough or other plastic compositions
IPC: A21C7/01
Filed: 1938-09-28
Abstract: 519,835. Rolling-up dough. BRISTOL STEAM OVEN WORKS, Ltd., JONES, F.W., and JONES, A. J. Sept. 28, 1938, No: 28224. [Class 87 (ii)] Apparatus for rolling flattened dough pieces in the manner of a jain-roll comprises an horizontal conveyer 1 on to which dough pieces are fed from a hopper 6, a pivoted tripping-device 9 adapted to retard the leading edge of the piece and thereby to initiate its curling or rolling which is effected by an oppositely-moving portion 15 of an endless conveyer having an inclined part 15a for finishing the rolled-up piece. The conveyer 15, 15a is pivoted about its end roller 17a and bears on the dough. The hopper 6 has a safety device comprising a counterbalanced angular lid 21 one or other part of which normally makes contact with a fixed part 20. The dough pieces are flattened by two or three rollers 7 arranged above the conveyer 1.
Patent GB-1192393-A (GB)
Title: Anthelmintic Compounds, Compositions and processes
IPC: C07D239/553
Filed: 1967-06-19
Abstract: 1,192,393. Anthelmintic compositions. CHAS. PFIZER & CO. Inc. 19 Jun, 1967 [27 June, ,"1966], No. 28263/67. Heading A5B. [Also in Division C2]  Anthelmintic compositions comprise a carrier and a compound of the formula: wherein -A-B- is -CO-CH 2 - or -CH=OH-, Y is 2- or 4- or 5-thiazolyl, 4-isothiazolyl, 4- methyl-5-thiazolyl, 3-mathyl-4-iisothiazollyl, 3- pyrazolyl, 4-methyl-3-pyrazolyl, 3-methyi-4- pyrazolyl, 4-methyl-5-oxazolyl, 2-pyrrolyl, 1- mathyl-2-pyrrolyl, 2- or 3-thienyl, 2- or 3-fury], phenyl, 2-methyl- or 2-hydroxy- or 2;halophenyl 3- or 4-hydroxy phenyl, 3-methyl-2- thienyl or 2-methyl-3-thienyl, R is H or Me and X- is a pharmacologically acceptable anion. They may be in conventional form's for oral or parenteral administration including animal feedstuffs and premixes for addition thereto.
Patent GB-395671-A (GB)
Title: Improvements in and relating to methods of insulating metallic parts
IPC: H01B13/06
Filed: 1931-10-12
Abstract: An insulating-coating of zinc oxide is formed on a metallic body by coating the body with zinc, either by spraying, dipping the body in molten zinc, or by galvanic zincing and then oxidizing the zinc coating superficially or throughout by heating in an oxidizing atmosphere, such as air or oxygen, or by treatment in an aqueous solution of chromic acid or potassium permanganate.
Patent GB-261538-A (GB)
Title: Improvements relating to taps or cocks
IPC: F16K31/60
Filed: 1925-11-11
Abstract: 261,538. Booth & Co., Ltd., S., and Webster, F. A. Nov. 11, 1925. Name and instruction tablets.-A reversible indicating tablet, bearing the words " Hot " and " Cold " on opposite sides, is secured to the capstan head 5 of the tap or cock spindle by a central screw 7, the head 7<a> of which is adapted to lie in a recess 6b provided at each end of the central hole in the tablet.
Patent GB-1453252-A (GB)
Title: Chain typre shaft coupling assembly
IPC: F16D3/54
Filed: 1974-06-26
Abstract: 1453252 Chain couplings; universal joints VEREINIGTE OSTERREICHISCHE EISENUND STAHLWERKE-ALPINE MONTAN AG and ETAB WANDERFIELD & CO 26 June 1974 [25 July 1973] 28387/74 Headings F2Q and F2U A duplex roller chain 5 which forms part of a shaft coupling, entrained around two axially abutting sprockets 1S, 2S 1 , is provided at its ends with fastener members 6, 7, connected together by a locking pin 11 which may be inserted or withdrawn in a direction parallel to a radius of the common axis of the shafts, and lying in a plane which is normal to this shaft axis. The fastener members 6, 7, may be coupled by a bridging keeper member 9, which is held fast in member 6 by a pin 10, and which can be inserted into an aperture in member 7 and retained there by the movable locking pin 11. In the embodiment illustrated, a leaf spring 15 snaps against a conical shoulder 16 to latch pin 11 fully home, and a release pin 17 may be depressed in order to deflect spring 15, thereby unlatching pin 11, which is urged out of engagement by a bowed spring 14. Both coupling and uncoupling of the chain fastener are thus effected by simple pressure on pins 11 and 17 respectively. Axial plungers 19A, 19B are slidably mounted in the hollow driving shaft 2, and can be depressed into shaft 2 against a spring 22 by pins 21A, 21B, in slots 20A, 20B, respectively, thereby permitting the driven assembly, e.g. a beam in a weaving machine, to be lifted away, when the coupling chain 5 is removed.
Patent GB-761313-A (GB)
Title: Improvements in taps for liquids
IPC: F16K5/18
Filed: 1954-10-05
Abstract: 761,313. Valves. A. P. G. VALVE CO. (PROPRIETARY), Ltd. Oct. 5, 1954 [Oct. 9, 1953], No. 28609/54. Class 135. The closure member of a tap comprises a rubber or rubber-like cylindrical cup 23, having an orifice 24 which may be moved into or out of register with an outlet port 26 in a chamber 13 in which the cup is housed. The cup interior is continuously open to inlet pressure so that when the tap is in its closed position the inlet pressure ensures satisfactory closure. In one embodiment, the tap is opened and closed on rotation of a handle 25. In another embodiment, the cup 23 is slidable in the chamber 13 which is longer than the cup, the orifice 24 being brought into register with the port 26 on the depression of a knob. The knob may be spring-loaded in which case the tap is selfclosing. When the spring is not fitted, inlet pressure will hold the tap in its closed position after the cup has been raised.
Patent GB-908532-A (GB)
Title: Improvements in or relating to variable length conduits
Inventor: VERHEYDEN JEAN
IPC: F16L27/10
Filed: 1959-08-21
Abstract: 908,532. Gravity-separation apparatus. COMMISSARIAT A L'ENERGIE ATOMIQUE. Aug. 21, 1959 [Aug. 29, 1958], No. 28636/59. Class 46. [Also in Group XXVIII] Liquids of different densities contained in a receptacle 20, Fig. 2, are drawn off separately by means of a rigid tube 26 and a tube 1 of variable length consisting of a resilient helix secured between a fixed plate 2 and a movable plate 3. The distance between the plates is adjusted by means of a screw-threaded shaft 7 fast with the plate 3 and actuated through reduction gearing 24 by means of an electric motor 23, electric safety contacts 25 being provided to limit the shaft travel. A photo-electric cell may be attached at the end of tube 26 and be connected to the motor 23 to control the spacing of the plates 2, 3 so as to locate the end of the tube in the layer of selected density and cause it to follow the variations in the relative height of the level of the selected layer as the liquid is drawn off. In another embodiment, Fig. 6, liquid is transferred from a swinging decanter 32 to a receptacle 36 inside a fluidtight reservoir 37 by means of a siphon 34, 35 connected through the tubes 1, 26 to a vacuum pump 38.
Patent GB-1396280-A (GB)
Title: Spark ignition systems
IPC: F23N5/08
Filed: 1971-06-18
Abstract: 1396280 Ignition systems PLESSEY CO Ltd 31 May 1972 [18 June 1971] 28661/71 Heading F1B [Also in Division F4] A spark ignition system comprises an oscillator circuit for generating pulses which are applied to a step-up transformer TR for the production of sparks across spark electrodes SP, a photopositive resistor PC1 which detects the flame resulting from the ignition of fuel oil by the sparks and renders the oscillator circuit inoperative, and a relay RM which is operated in response to the generation of pulses to cause fuel to be supplied to a fuel burner and which is held operated through a circuit including the photopositive resistor when ignition of the fuel has taken place. As shown the oscillator is a relaxation oscillator having a mains supply MS and comprising a capacitor C1 charged through a resistor R1 and normally open contacts TH of a thermostat device and normally closed contacts T 1 of a bi-metal tripping device having an associated heating coil R1. The capacitor C1 charges a capacitor C2 through a resistor R3 until the breakdown voltage of a neon tube device N2 is reached and a triac TRA fires to enable the capacitor C 1 to discharge a pulse through the primary winding P of a step-up transformer TR. A high voltage pulse is thus produced across the secondary winding S 1 and a spark is produced. A flame is thus produced which increases the conductivity of the photo-positive resistor PC 1 and reduces the voltage across the capacitor C2 and prevents the voltage rising to the breakdown voltage of the neon tube device N2. The transformer also has a secondary winding S2 which produces pulses to operate the relay RM. Contacts RM 1 of relay RM close to operate a solenoid fuel oil valve V. The relay RM is held operated while a flame is pre-set by the increased current flow through the photo-positive resistor PC 1. If the igniting sparks fail to produce ignition, the heating effect of the resistor R 1 operates the bi-metal tripping device. This produces a visual indication through a neon tube device N1. In the embodiment of Fig.1, (not shown), the relay (RM) operates the fuel oil pump motor (M).  Two embodiments are described which purge the combustion chamber before ignition and after burning. In Fig.2 the fuel oil pump M drives a fan while a capacitor C4 is charged to the breakdown voltage of a neon tube device N3. The oscillator circuit is then connected to the mains supply and the valve V operated. In Fig.3, (not shown), the fuel oil pump (M) motor drive the fan to purge the combustion chamber while a bi-metal device is heated to its operating temperature. The terminal A in the figures is connected to an alarm arrangement.
Patent GB-912828-A (GB)
Title: Damping alloys and members prepared therefrom
IPC: C22C19/07
Filed: 1960-08-18
Abstract: An alloy having high damping properties at elevated temperatures comprises over 3% Ni, at least one of Fe, Cr and Co, totalling, with Ni, at least 80%, the amount of Cr when present not exceeding 30% and also containing up to 4% of at least one of the elements Ti, Al, Be, and Cu as precipitation hardening elements and Si, Mn, C, S, P, N and O as impurities and additives, the alloy having been solution treated for 1/2 -4 hours at 1700-2000 DEG  F. and aged for 1/2 -2500 hours at 1100-1600 DEG  F. to produce a cellular precipitate comprising a matrix and lamellar colonies, the latter constituting at least 3% of any cross-section.  The alloy may also contain up to 5% of Mo or W, 0-3% Zr, 0-6% Hf, 0-1.5% Nb or Ta, and B, if present, should not exceed 0.002%.  Specifications 806,183 and 886,922 are referred to.