baber/WOPTO huggingface dataset:
Patent GB-1212797-A (GB)
Title: A control system for hydraulic apparatus
IPC: F15B13/01
Filed: 1968-05-03
Abstract: 1,212,797. Valves. GEWERKSCHAFT EISENHUTTE WESTFALIA. 3 May, 1968 [9 Dec., 1967], No. 21112/68. Heading F2V. The actuating lever handles 11, 13, 15 of valves, particularly for controlling the advancing and setting of hydraulic mine roof supports, are interlocked for the programming of the operation by an apertured key-plate 16. As shown, each pair of handles a, b, c is located in a distinctive pair of slots as shown, and each handle has three positions, 1 where the associated prop is braced, 2 a neutral position, and 3 where the prop is retracted. The plate is movable in guides 17 by a lever 18 into three positions in one of which, as shown, the pair of props a are locked in the braced condition, props b can only be retracted, and props c are normally retracted but can be braced if desired. In a mid position of the plate the roles of the top and bottom pair are reversed whilst the middle pair can move between positions 1 and 3, whilst in another extreme position the top and middle pairs are locked. To avoid moving the plate quickly before the props have been fully extended and set, a spring-loaded pressurerelief valve, Fig. 4 (not shown), is located in series with at least some of the valves. The relief valve member (31) is spring-loaded through a surrounding sleeve (33) having a pressure balancing extension stem (34). The fluid has access to the sleeve interior through openings (40, 40<SP>1</SP>).
Patent GB-862341-A (GB)
Title: Sewing machine with provision for cooling lubricant
IPC: D05B71/00
Filed: 1959-06-19
Abstract: 862,341. Cooling lubricants. SINGER MANUFACTURING CO. June 19, 1959 [June 27, 1958], No. 21113/59. Class 12 (3). A sewing-machine 1 has a splash-lubricated compartment 2 which is connected by outlet and return conduits 49, 50, with an external oil-cooling radiator 37 located below the compartment 2. The compartment contains shafts 10, 13, 16, having gear-wheels 11, 12, 14, 15 thereon, the movement of which agitates the lubricant so that it is splashed on to a collecting pan 63, connected by a pipe 62 to the outlet conduit 49. The radiator and conduits 49, 50 are filled with lubricant, which is also supplied to the compartment 2 up to a level 68. Relatively hot lubricant is returned, via the pan 63, the pipe 62 and the conduit 49, to the radiator at 61, and cool lubricant is replaced through the conduit 50. The radiator 37 has corrugated external surfaces and is additionally cooled by air which first passes through an electric motor 18 which drives the machine.
Patent GB-1036353-A (GB)
Title: Improvements in and relating to capacitors
Inventor: BANTON COLIN WILLIAM
IPC: H01G2/12
Filed: 1964-05-22
Abstract: 1,036,353. Capacitors. SUFLEX Ltd. April 23, 1965 [May 22, 1964], No. 21191/64. Heading H1M. A cylindrical wound capacitor with a polystyrene dielectric is externally wound or sleeved with polystyrene to form a wall projecting over its ends, and is heat treated to shrink and consolidate the dielectric and to shrink the projecting wall inwardly to form tapering cavities, which are sealed with epoxy resin anchoring the terminal wires.
Patent GB-376036-A (GB)
Title: Improvements in artificial dentures
IPC: A61C13/00
Filed: 1931-07-24
Abstract: A mouldable composition for use in the manufacture of artificial dentures comprises polystyrol or polymerized styrol homologues with gelatinizing agents such as tricresyl phosphate or dimethyl, diethyl or dibutyl phthalate, high boiling solvents such as toluene or xylene, or indifferent organic substances such as conmarone resins, or mixtures thereof.  Barium sulphate or titanium while may be added as weighting media.  Reference is made to colouring the dentures.  A specified composition is:-96 grms. polystyrol, 5 grms. diethyl phthalate and 1,5 grms. titanium white.ALSO:Artificial dentures consist of polystyrol or polymerized styrol homologues with or without gelatinizing agents such as tricresyl phosphate or dimethyl, diethyl or dibutyl phthalate, high boiling solvents such as toluene or xylene, or indifferent organic substances such as coumarone resins, or mixtures thereof.  Barium sulphate or titanium white may be added as weighting media. Reference is made to colouring the dentures.  A specified composition for the dentures is:-96 grms. polystyrol, 5 grms. diethyl phthalate and 1,5 grms. titanium white. The dentures may be made by diecasting, the material being heated to 140 DEG  C. and injected into the cold mould under a pressure of 60-80 kg./cm.2, or by the ordinary pressure process wherein a mould at 120-130 DEG  C. and a pressure of 100 kg./cm.2 may be employed.
Patent GB-358910-A (GB)
Title: Improvements in or relating to cylinder heads for internal combustion engines
IPC: F02B23/08
Filed: 1930-07-14
Abstract: 358,910. Cylinders. RICARDO, H. R., 21, Suffolk Street, Pall Mall, London. July 14, 1930, No. 21229. [Class 7 (ii).] The cylinder clearance space is restricted to a trough-shaped chamber c, seen in plan in Fig. 1, which extends across the cylinder bore to form a lateral pocket containing one of the valves D<1>; the other valve is either opposite the valve D<1> or at the other end of the chamber and the sparking plug is at F. In Fig. 5 the inlet and exhaust valves J, K are side by side and the sparking plug M is between the exhaust valve and the cylinder bore.
Patent GB-516252-A (GB)
Title: Improvements in television and like receivers
IPC: H04N5/60
Filed: 1938-07-19
Abstract: 516,252. Wireless receiving systems ; impedance networks. GENERAL ELECTRIC CO., Ltd., and ESPLEY, D. C. July 19, 1938, No. 21398. [Classes 40 (iii) and 40 (v)] In a television receiver having a common frequency- Changer for the vision and associated sound, there is inserted in the vision path after the common path a coupling filter of the type shown in Fig. 1 having an infinite impedance at a single frequency at or very near to the sound I.F. and zero impedance over a finite range corresponding to the vision I.F. The filter may be developed into the form shown in Fig. 4 and the capacities C1, C2 may then be the distributed capacities of the circuits connected by the coupling.
Patent GB-1090861-A (GB)
Title: A telemetry system for security applications
Inventor: NEWMAN KAREL
IPC: G08B25/04
Filed: 1963-05-29
Abstract: 1,090,861. Electric selective signalling. ELECTRIC & MUSICAL INDUSTRIES Ltd. July 28, 1964 [May 29, 1963; Nov. 2, 1963], Nos. 21411/63 and 43339/63. Heading G4H. A telemetry system for security applications comprises means at each of a plurality of locations for producing at least one intermittent monitoring signal characteristic of a location, the signal being changed to a continuous signal on occurrence of a particular event, common communication means conveying the signals to receiving means for discrete indication. Each of a number of remote locations applies two characteristic frequencies concurrently to the telephone lines to a central office. The two frequencies are normally intermittent but become continuous on detection of burglary and fire respectively. The central office comprises frequency discriminators, and also periodically-reset integrators to distinguish between continuous and intermittent signals. Alarm lamps are provided at the central office for fire, burglary and " line cut " (one for each) together with a location lamp corresponding to each remote location to indicate the source of the alarm. The " line cut " lamp (and the appropriate location lamp) are lit if one of the frequencies from any remote location is not received during five seconds. An alarm is also given at the remote location in the event of burglary or fire. Selected frequencies may be sent from the central office to test these remote location alarms. An additional arrangement comprises means for applying to the telephone lines (which constitute a loop reaching all the remote locations and then returning to the central office) a succession of bursts of A.C., the spacing between successive bursts varying cyclically, the phases of this A.C. and the same A.C. returning around the loop being compared at the central office, a phase difference exceeding a certain amount actuating an alarm. Thus if a malefactor cuts the telephone wires at a remote location and feeds in characteristic frequencies to fool the other arrangements, the additional arrangement will still give the alarm.
Patent GB-863043-A (GB)
Title: New or improved machine for finishing springs
Inventor: TURLEY ALFRED
IPC: B21D7/00
Filed: 1958-07-04
Abstract: 863,043. Deforming ends of springs. VONO Ltd. Oct. 5, 1959 [July 4, 1958], No. 21419/58. Class 83 (4). A machine for forming the eyes on the ends of coil springs comprises a main rotary worktable on which is mounted a plurality of spring holders and which is rotated step-by-step so as to move the spring holders in succession into register with a pair of forming tools each of which is adapted to act upon a spring held in a spring holder to form an eye on one end of the spring, the forming tools being spaced apart and each spring holder being rotated relative to the main table as the spring holder moves from one forming tool to the other so that one tool acts on one end of the spring and the other tool on the other end. Springs from a hopper 12 are fed one by one therefrom by pockets 15 on an intermittently moved endless chain 14 and are discharged singly therefrom by a jet of air blowing the spring down a tube 18 into one of a plurality of spring holders 19 on a main work-table 11, rotated step-by-step about a vertical axis by Geneva mechanism 38, 41 driven by a shaft 42. Each spring holder 19 comprises a pair of anglesection side plates 28 urged towards one another over a groove 30 in the table 11 by springs 30, the side plates 28 being opened apart, by pins on the table 11, at the feeding, forming and discharge stations. Each spring holder 19 is rotatable on the face of the table 11 about an inclined axis by a bevel gear 32 on a holder spindle 31 engaging a fixed central bevel gear 33. Two forming stations are provided and the spring holders 19 are rotated 180 degrees on their passage between the two so that one tool 70 forms one end of the spring and the next tool 70 the opposite end. At a forming station the side plates 28 of a holder 19 open and a pressure rod 65, Fig. 1, is moved down, by an arm 68 rocked by a cam 76, Fig. 6, on a drive shaft 22, to hold a spring firmly while a forming tool 70 descends to form a spring eye at one end of the spring. Each tool 70 is carried by a common bracket 53 reciprocated by an arm 56 on a shaft 57 rocked by crank means 59 by cams 26, 61 on the shaft 22. Two endless belts 81, driven from the shaft 42, are moved to engage the end of each spring as it comes to the forming stations to rotate the spring and orientate it in the correct position for being acted upon by the forming tool 70. The belts 81 are moved by a lever 85, Fig. 5, rocked by a cam 49 on the shaft 42.
Patent GB-741296-A (GB)
Title: Improvements in or relating to wavewound inductance coils
Inventor: HARRIS FREDERICK HENRY
IPC: H01F41/06
Filed: 1952-08-26
Abstract: 741,296. Electric coils. PYE, Ltd. Nov. 24, 1953 [Aug. 26, 1952]. No. 21424/52. Drawings to Specification. Class 35. Enamel-coated wire for an inductance coil is given a covering of thermoplastic material, e.g. polyvinyl chloride, and the wire is heated at the point of application to the coil former or the heat is applied to the already wound part of the coil to render the thermoplastic material sufficiently tacky to provide friction between the turns. The enamel may be a polyvinyl acetal.
Patent GB-1525834-A (GB)
Title: Measurement of distortions of bipolar signals
IPC: H04L1/24
Filed: 1976-05-24
Abstract: 1525834 Data transmission: measuring distortion WANDEL U GOLTERMANN 24 May 1976 [27 May 1975] 21499/76 Heading H4P Distortion in a data transmission path may be detected by measuring variations in the amplitude of the received data pulses and to this end the data train is synchronously sampled at the middle of pulses, the samples capacitively stored and the variation of the stored value detected. As shown, a sync. pulse track is extracted at 5, delayed at 6 and controls a monostable circuit 7 which gates a data pulse to a rectifier (so that bipolar data pulses are effective) feeding a synchronous sampler 16. The output of the sampler is fed via a low pass filter and a high pass filter 20 to an indicator 22 for the variations. So that the indicator shows a value proportional to the pulse amplitude, the mean value is stabilized by an a.g.c. path 23, 25, 9.
Patent GB-197242-A (GB)
Title: Changeable tread rail for tramways
IPC: E01B5/10
Filed: 1922-08-09
Abstract: 197,242. Saunders, W. J. Aug. 9, 1922. Rails, metallic builtup; rails, reversible.- A tram rail consists of a base rail a with a flange a<1> having a head a<2> engaging a groove in a single or multiplegrooved 'tread rail c which may rest on shock-absorbing maberial b and is secured by one or more wedge blocks h having a bead h<1> entering a groove on that side of the rail. The blocks are adjusted by a bolt i and are seated in boxes d secured to the base rail and provided with a cover. The blocks are rabbeted to receive longitudinal relieving strips g. According to the Provisional Specification the tread rail is secured by clamps bolted to the base rail.
Patent GB-597610-A (GB)
Title: Improvements in and relating to mobile power plant
IPC: B60L50/10
Filed: 1945-08-23
Abstract: 597,610. Control of D.C. motors. HIGGS, G. R., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Aug. 23, 1945, No. 21620. [Class 38(iii)] [Also in Group XXXV] In a vehicle power transmission system having at least two D.C. generators driven by a prime mover and supplying one or more traction motors, the generators are automatically connected in parallel or in series, according to predetermined speeds of the vehicle, without sensible change in voltage applied to and load taken by the motors. In the Figure, series motor M is supplied by two separately excited generators G1, G2 driven by a prime mover on the vehicle and having field windings GF1, GF2, energised by an exciting generator AG, associated with load regulating rheostat LR and " transfer " rheostat TR. Both rheostats are servo-operated, the rheostat LR being controlled by, or in unison with, the fuel control device of the prime mover to maintain substantially constant load thereon, whilst the movable arm tr<11> of rheostat TR, the servo motor of which is interlocked with rheostat LR, is operated from its zero position shown when the position of the movable member of rheostat LR corresponds to maximum excitation on generators G1, G2. For parallel operation, e.g.: - during starting of the vehicle, the motor M is supplied through contactor switches P1, P2, the switch S then being open. When the motor attains a speed corresponding to maximum excitation on generators G1, G2, rheostat TR operates to decrease the excitation on gerator G1 to its no-load condition, whereupon contactor switch P1 opens to disconnect generator G1 from the motor circuit and contactor switch S closes under the influence of a no-volt relay associated with generator G1 or an auxiliary contact operated by arm tr<11>, after further movement of this arm to reduce the voltage of generator G1 to zero. Contactor switch P2 then opens and continued movement of arm tr<11> effects gradual build up of voltage on generator G1, whilst rheostat LR adjusts the excitation of' both machines to maintain constant load on the prime mover. The arm tr" is interlocked with the vehicle operator's control means, which if operable for stopping or slowing down the vehicle, cannot again be operated until the arm tr<11> returns to its normal position. The predetermined speed at which transition from series to parallel connection takes place is arranged to be lower than the value for transition from parallel to series connection. In systems employing more than two generators, an intermediate stage may be included, whereby the generators are connected in series-parallel.
Patent GB-441858-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02B1/00
Filed: 1934-07-25
Abstract: 441,858. Cylinders. WILDERMAN, P., 4, Chartfield Avenue, Putney, London. July 25, 1934, No. 21704. [Class 7 (ii)] In each four-stroke cycle, a closed pressurerelief chamber 10 is connected to the combustion chamber after ignition has occurred but before maximum pressure is reached, the connection remaining during the greater part of the rest of the expansion and, if desired, during the exhaust strokes, but being closed for the remainder of the cycle. The connecting means may comprise a spring-loaded valve 11 ; the return means may comprise a lightly-loaded valve 12, and the connecting parts may be arranged in the cylinder wall so as to be uncovered by the piston just after ignition has occurred. The chamber 10 may be scavenged by compressed air admitted through a valve-controlled port 26 during the exhaust period of the cycle. In Fig. IIIa, the entry port 5 to a pressure-relief chamber 1 is controlled by a piston valve B operated from the engine by an adjustable eccentric, which may be arranged so that the main piston opens the port during the expansion stroke, but so that it is closed during the admission and compression strokes by the valve B. A removable head 12 may be arranged in line with the port 5 so that the pressure relief chamber is entirely closed when the port 5 is covered by the piston B. The application to double-acting and opposed-piston engines, and to multicylinder engines, is described. The Provisional Specification describes pressurerelief chambers which are not closed during the compression stroke. Specification 28339 /08, [Class 7], is referred to.
Patent GB-1510194-A (GB)
Title: Unsaturated polyester compositions
IPC: C08L21/00
Filed: 1975-05-21
Abstract: 1510194 Modified unsaturated polyester compositions DOW CORNING CORP 21 May 1975 [15 Oct 1974] 21776/75 Headings C3M and C3T A dispersion comprises: (A) 50-99À45% by weight, based on the sum of (A) + (B) + (C), of an unsaturated polyester resin; (B) 0À5-40% by weight of at least one material selected from liquid organopolysiloxanes having as their primary structural unit the R<1>2SiO moiety (R<1> being hydrocarbon (C1-18) or halogenated hydrocarbon (C1-18)), siloxane copolymers composed of SiO2 and R3SiO¢ units, wherein R is hydrocarbyl (C1-6) and SiO2 : R3SiO¢ is 1 : 0À4- 1 : 1À2, and liquid polyolefins; and (C) 0À05- 10% by weight of a dispersing agent which maintains (B) dispersed in (A), being a siloxane copolymer selected from: (1) copolymers consisting essentially of SiO2, (CH3)3SiO¢ and D(CH]3)SiO¢ units in which D is polyoxyethylene (mol. wt. #2000) or polyoxyethylenepolyoxypropylene (mol. wt. #2500 and up to 50 mole per cent polyoxypropylene), D being attached to silicon via a Si-C bond and SiO2 : R3SiO¢ is 1 : 0À4-1 : 1À2; (2) copolymers obtained by reacting a siloxane in which the ratio of SiO2 : (CH3)3SiO¢ is 1 : 0À4-1 : 1À2 and a hydroxylated polyoxyethylene (mol. wt. #2000) or a hydroxylated polyoxyethylenepolyoxypropylene (mol. wt. #2500 and up to 50 mole. per cent polyoxypropylene); (3) polydimethylsiloxaneorganic copolymers in which the polydimethylsiloxane portion has a molecular weight of at least 2000 and the organic portion consists of polyoxyethylene (mol. wt. #800) or a polyoxyethylene-polyoxypropylene copolymer (mol. wt. # 1500 and up to 50 mol. per cent polyoxypropylene); and (4) polydimethylsiloxane-organic copolymers prepared by reacting polydimethylsiloxanes (mol. wt. # 1500) and a hydroxylated polyoxyethylene polymer (mol. wt. #800) or a hydroxylated polyoxyethylene - polyoxypropylene copolymer (mol. wt. #1500 and up to 50 mol. per cent polyoxypropylene). The specific examples disclose compositions containing: as (B) a trimethylsilyl polydimethylsiloxane optionally admixed with a siloxane copolymer a liquid polybutadiene, polybutene or styrenebutadiene and as (C) a copolymer consisting of siloxane and polyoxypropylene-polyoxyethylene units which may additionally contain alumina and clay as filler (4).
Patent GB-1068927-A (GB)
Title: Improvements in or relating to buildings
IPC: E04B1/68
Filed: 1964-05-26
Abstract: 1,068,927. Prefabricated buildings. C. VAN DER LELY N. V. May 26, 1964 [June 11, 1963], No. 21806/64. Heading E1A. A single storey building is built in five sections 1-5, the exterior walls of which have steel framework comprising vertical tubes 9, 10 with connecting elements 11, 12 secured thereto, and horizontal channel members 7, 8 forming sides of upper and lower rectangular frames. The walls comprise an inner layer 13 of framed concrete covered on the inside with backing paper 57 and wallpaper 58, and on the outside with a layer of synthetic plastics foil 15, and a layer 16 of foamed plastics material, the wall being clad on the outside with reinforced concrete panels 17, each having an internal grid of ribs, e.g., 23a and 25a, and each being secured to the horizontal members 7, 8 by arms 21, 22, or by hooked members, (Fig. 4, not shown), engaging angle brackets attached to the members 7, 8. The space between the panels may be partly, (as shown), or completely filled with mortar 61a. Ventilation holes 55, 56 are provided through a roof closing strip 46, and through an insulating layer 41, an angle member 40, and the channel member 7.
Patent GB-771423-A (GB)
Title: Improvements in alkyl-n-sorbitylalkanamides
IPC: C07C233/16
Filed: 1955-07-28
Abstract: The invention comprises N-alkyl N-sorbityl amides of the formula: <FORM:0771423/IV(b)/1> wherein X is a hydrogen atom or a methyl group and R is an alkyl group of 1 to 20, preferably 1 to 18, carbon atoms, and their preparation by reacting an N-alkyl glucamine with a lower alkyl formate or acetate wherein the alkyl group contains from 1 to 4 carbon atoms, preferably at a temperature between 30 DEG  C. and the reflux temperature of the reaction mixture.  The products are used as surface-active agents and in some cases, e.g. N - methyl - N - sorbitylformamide, as therapeutic substances.  Examples describe the reaction of alkyl formates and alkyl acetates with the appropriate N-alkyl glucamines to produce N-alkyl-N-sorbityl formamides and acetamides wherein the alkyl groups are chosen from methyl, butyl, octyl, isodecyl, dodecyl, tert.-tridecyl, tetradecyl, tert.-tetradecyl, hexadecyl, octadecyl, eicosyl and tert.-eicosyl groups.