baber/WOPTO huggingface dataset:
Patent GB-1173099-A (GB)
Title: Improvements in or relating to Door Handle Assemblies
Inventor: ENGSTFELD KURT
IPC: E05B3/04
Filed: 1968-01-31
Abstract: 1,173,099. Securing sockets on spindles. K. ENGSTFELD. 31 Jan., 1968 [25 April, 1967], No. 4986/68. Heading F2U. The socket 2 of a door handle is secured on the end of a square spindle 4 by a lever 7 lying in a diagonal slot 6 in the spindle and engaging a fulcrum 8, being rotated into the holding position by a set screw 5 in the socket 2 which forces the end of a long arm portion 71 into the bottom of the slot and a short portion 7<11> into the corner of the spindle aperture 3, a recess 14 in the lever being held between retaining projections 15 in the slot 6. The lever 7 is preferably resilient and as shown is made from two sheet metal stampings 7a, 7b placed side by side, or the underside of the lever may have grooves (13), Fig. 7 (not shown), or the lever may be in the form of a leaf spring (7c), Figs. 8-10 (not shown).
Patent GB-114656-A (GB)
Title: Improvements in the Regulation of Fuel Supply to Internal Combustion Motor Driven Vehicles.
Inventor: ANDREWS NEALE
IPC: F02M21/00
Filed: 1917-04-10
Abstract: 114,656. Andrews, N. April 10, 1917. Automatic speed or power control; governors, applications of.-In internal-combustion engine driven vehicles the engine is supplied with light fuel up to a certain speed of vehicle after which heavy fuel is supplied and the light fuel shut off. The change of fuel, which may be effected gradually or abruptly, is dependent on the speed of the vehicle as distinct from engine speed. The cylinders B are supplied with light fuel mixture from a carburettor G through pipes E or with a heavy fuel mixture from a carburettor G<1> and vaporizer F. The particular fuel in use is determined by the position of a valve D, which is actuated through toothed quadrant h<3>, lever h<4>, and link h<2> by a governor H which is driven through a flexible cable h from a moving part of the vehicle. A throttle valve c is also provided. Instead of controlling the mixture produced, the fuel may be controlled.
Patent GB-575464-A (GB)
Title: Improvements relating to welding electrode holders
IPC: B23K11/30
Filed: 1944-03-18
Abstract: 575,464. Welding. MALLORY METALLURGICAL PRODUCTS, Ltd. March 18, 1944, No. 5063. Convention date, March 18, 1943. [Class 83 (iv)] An electrode holder of the ejector type for a resistance welding machine and comprising a tapered socket for the electrode tip with the interior substantially filled with liquid, has the electrode removed from the holder by applying hydrostatic pressure to the liquid. Electrodes may thus be ejected from a holder of odd shapes such as those having a bend or offset or a holder comprising the welding arm itself. A recessed electrode 13 may be fitted in a tapered socket of a holder 10, the larger bore of which contains water inlet and outlet valves 16, 17. Such bore contains a plunger 18 provided with a telescopic tube 25, 26 entering the recess 15, transverse and axial bores 23, 24 and an end 19 projecting through the rear end of the holder. Leakage of liquid round the plunger is prevented by packing rings 20, 27. The plunger may be provided with a perforated stop sleeve 28 of metal or rubber. The diameter of the plunger is sufficiently less than the bore of the holder in the vicinity of the passage 23 to permit water circulation round the plunger at this point. During normal operation the passage 23 is aligned with the passage of the valve 16 so that the cooling water is circulated therethrough. In order to remove the electrode 13, the valves 16, 17 are closed to isolate a volume of liquid in the holder and the projecting end of the plunger 18 struck, thereby applying hydrostatic pressure to the liquid contained therein to drive out the electrode. If desired, a cloth or container may be placed over the end of the electrode and holder to catch the electrode and some of the liquid. In a modification, the tube 25 is replaced by a tube 42, Fig. 3, having a flexible rubber or metal section 43 to convey liquid round the bend in the holder. In a further form having a holder with an offset end, the tube 25, 26 is also replaced by a tube 35, Fig. 2, having an end section 36 of rubber or other flexible material so as to convey liquid round the bends in the passage 37. The plunger may be returned by a spring 38 between the end thereof and a sleeve 39 resting against a shoulder inside the holder.
Patent GB-419344-A (GB)
Title: Improvements in and relating to ring doubling frames for artificial silk
IPC: D01H1/20
Filed: 1934-02-16
Abstract: 419,344. Ring frames for artificial silk. SOC. ANON. OFFICINA MECCANICA ST. ANDREA-NOVARA, 18, Via Leonardo da Vinci, Novara, Italy. Feb. 16, 1934, No. 5165. Convention date, Nov. 14, 1933. Addition to 390,724. [Class 120 (ii).] In the ring doubling-frames for artificial silk described in the parent Specification the drive from the tin roller shaft to the delivery rollers is by means of silent chains 7, 11, 11<1>, the chains 7 engaging stepped wheels 2, 8.
Patent GB-693285-A (GB)
Title: Improvements relating to the manufacture of optical windows for the envelopes of electron discharge devices especially cathode ray tubes
Inventor: COLBORNE RONALD HENRY
IPC: H01J9/24
Filed: 1950-03-02
Abstract: 693,285. Bending glass. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Feb. 28, 1951 [March 2, 1950], No. 5248/50. Class 56. [Also in Group XL (a)] A method of manufacturing an optical window for a cathode ray tube, wherein there is provided a glass disc which may be in the form of a meniscus, comprises supporting the central part of the disc between holding members and heating the part of the disc projecting from the holding members and shaping it, by spading or rolling it over, to form a flange surrounding the central portion. The disc may be optically worked before the above process is carried out.
Patent GB-1059612-A (GB)
Title: Speed regulating electric control-circuit for hand-tool
IPC: H02P7/288
Filed: 1965-02-08
Abstract: 1,059,612. Control of D.C. motors. MICROMEGA S.A. Feb. 8, 1965 [March 9, 1964], No. 5309/65. Heading H2J. A D.C. motor 14 is supplied from a source 1 by way of a regulator 16 and a resistor 8 which is connected in one arm of a Wheatstone bridge also connected to the source 1. The bridge is constituted by the resistor 8, a Zener diode 6 and adjustable resistors 9, 10 and is arranged to be balanced when the motor is running under given conditions, e.g. at no-load; when a load is applied to the motor, the bridge becomes unbalanced and the resulting signal is applied over an amplifier 11 to the regulator 16 which increases the voltage applied to the motor so that the motor speed is maintained constant despite the increased load. A detector 17 operates at a certain value of motor current, e.g. load current, to permit energization of a circuit including electromagnetic valves 24, 25, 26 which control accessories such as cooling devices and spraying devices associated with the motor. The amplifier 11, the regulator 16 and the detector 17 may include transistors, suitable circuit arrangements being described with reference to Fig. 2 (not shown).
Patent GB-623118-A (GB)
Title: Improvements in ceramic insulators
IPC: C04B35/46
Filed: 1947-02-24
Abstract: Ceramic insulators are prepared by sintering to compactness so as to form a mass of mixed crystals a mixture of stannic oxide and titanium dioxide, preferably in the proportions of 70:30 mol per cent.  The stannic oxide may be partly replaced by ceric oxide. Preferably a reactive stannic oxide is employed prepared by precipitation with ammonia from stannic sulphate solution or by heating stannous oxide in air to above 700 DEG  C.  Presintering of the stannic oxide to eliminate shrinkage can be carried out at temperatures not exceeding 1,000 DEG  C.  The stannic oxide is mixed with the titanium dioxide, which has been presintered at 1,100 DEG  C., and sintered at 1,500 DEG  C.  Alternatively, stannic oxide and titanium dioxide can be precipitated together, preheated to about 1,000 DEG  C., ground together and finally sintered.  A sintering agent which does not affect the dielectric properties of the product, e.g. MgF2 or PbO, can be added.
Patent GB-757204-A (GB)
Title: Improvements in or relating to lubricating oil compositions
IPC: C11B5/00
Filed: 1953-02-25
Abstract: A lubricating oil composition comprises a major proportion of a lubricating oil, a minor proportion of an ester, salt, acyl disulphide or thioanhydride of a thiocarbonic or thiocarbamic acid, or an aliphatic or substituted aliphatic mercaptan, monosulphide or polysulphide or the corresponding selenium compound, and a minor proportion of at least one a -hydrocarbonsubstituted naphthalene. Specified sulphur compounds referred to are zinc di-n-butyldithiocarbamate, zinc isopropylxanthate, zinc sec-amyltrithiocarbonate, zinc t-butyl trithiocarbonate, zinc phenyl-n-butyl dithiocarbamate, butyl di-n-butyl dithiocarbamate, tolyl di-n-butyl-dithiocarbamate, di-benzyltrithiocarbonate, di-i-butyl xanthate, zinc salt of dithiocarbonic acid morpholide, tetramethyl thiuramdisulphide, di-i-propyldixanthogen, di-sec-butyl dixanthogen, sec-butylxanthic thioanhydride and di-i-propylxanthic thioanhydride; dicetyl and cetylethyl sulphide, dioctadecyldisulphide, dicetyltrisulphide, dicetyltetrasulphide, wax disulphide, octyl mercaptan, cetyl mercaptan, dilauryl selenide, dilauryl diselenide, 2, 21-diamino-diethylsulphide, 2, 21-diphenoxydiethylsulphide, di (2-ethylhexyl) sulphide, diethyldithiane, 3, 31-dihydroxy dipropyl disulphide and 3-ethoxy propyl decylsulphide.  From 0.03 to 10 per cent of the thiocarbonic acid derivative and from 0.1 to 5 per cent of the aliphatic sulphur compound may be used.  The a -hydrocarbon substituted naphthalene may be a -methylnaphthalene, 1-amylnaphthalene 1, 2-diamylnaphthalene, 1-t-butyl naphthalene, 1-octadecylnaphthalene, 1-phenylnaphthalene, di-a -naphthyl, a -benzyl naphthalene, a -cyclohexyl naphthalene, a -(p-butylphenyl) naphthalene and 1, 6-dimethylnaphthalene.  From 0.5-10 per cent of the substituted naphthalene may be used. Lubricating oils referred to are highly refined mineral oils e.g., white oil, and synthetic oils such as olefin polymers, e.g., polyethylenes, polypropylenes, polybutenes and polypentenes; polyalkylene glycols, e.g., those derived from 1, 2-propylene oxide, preferably having the terminal hydroxyl groups esterified and/or etherified; diesters, e.g. esters of adipic or sebacic acids with butyl, hexyl or octyl alcohols; silicon-containing oils, such as orthosilicates, e.g. bis (2-butyl) bis (2-ethyl-1-butyl) silicate and iso-propyl-tris-(2-pentyl) silicate, and polysiloxanes such as hexa (2-ethyl-1-butoxy) disiloxane.
Patent GB-927609-A (GB)
Title: Improvements in sealing devices for hydraulic systems
IPC: F16J15/00
Filed: 1960-02-15
Abstract: 927,609. Stuffing-box substitutes. VOLVO A.B. Feb. 15, 1960 [Feb. 18, 1959], No. 5358/60. Class 122 (5). A sealing device between the piston-rod or like member 1 of an hydraulic device and a fixed housing 4 comprises an elastic sealing ring 10 which has inner arid outer cylindrical surfaces 15, 16 bounded by end surfaces 17, 18 and is mounted in a structure 2 forming part of the housing 4 so that at one corner of the ring its cylindrical surface 16 and adjacent part of its end surface 18 are engaged by the inner wall and radially-projecting shoulder 12 of the structure 2 and a spring 5 acts on the ring at its diagonally-opposite corner. The action of the spring in conjunction with the wall 16 and shoulder 12 is such that the compression of the ring results in the contact pressure between it and the sliding surface of the piston-rod 1 having the distribution shown by the curve 23, 24, 25. Because of the high increase in contact pressure per unit of length as shown by the curve 24 only a thin film of the liquid which escapes past a lower packing 6 to a chamber 8 is carried past the ring 10 upon upward movement of the piston-rod and the film is easily returned upon reversal of the piston-rod because of the contact pressure distribution as shown by the curve 23. The spring 13, preferably in the form of a number of conical discs, is compressed between the ring 10 and a part 3, all these parts being enclosed by the member 2 which is screwed on to the housing 4. The chamber 8 housing the spring 13 communicates with a return duct 9 and serves as a chamber for liquid leaking through the clearance 7 between the rod 1 and part 3 from the seal 6.
Patent GB-1159724-A (GB)
Title: Liquid Fuel Injection Pumps.
Inventor: KEMP KENNETH ALBERT WALTERS
IPC: F02M41/14
Filed: 1966-02-08
Abstract: 1,159,724. Fuel injection pumps. C.A.V. Ltd. Jan.16, 1967 [Feb. 8, 1966], No.5419/66. Heading F1A. [Also in Division G3] The fuel injection pump according to Specification 925, 979 is modified in that the piston 26 controlling the angular position of cam ring 14 houses pilot spool valve 29 and the supply and control lines to the latter are formed in the piston. The control pressure, i.e. the speed-responsive discharge pressure of feed pump 21, communicates via passages 32a, 32 with the inner end of bore 30 housing spool 29. Port 34 in the wall of bore 30 communicates with the cylinder space at the left of piston 26 via passage 35 and is obturated by spool 29 in the normal position. The spool groove receives actuating fluid via passages 33, 35a and axial slots 34a in rotor 11, the arrangement being such that the spool groove only receives fluid when the pumping plungers 13 are moving outwards. Alternatively, the actuating fluid is derived from the engine lubricating system or passage 35a and slots 34a are replaced by a check valve in the body which closes on sudden increases in pressure. The control pressure may be that modified by throttle 24 so that the control pressure varies in accordance with engine load.
Patent GB-706148-A (GB)
Title: Improvements in or relating to signet rings
IPC: A44C9/00
Filed: 1952-02-29
Abstract: 706,148. Finder rings. SHINDLER. J. Feb. 27. 1953 [Feb. 29, 1952], No. 5424/52. Class 43 The movable locket frame of the signet ring of the kind described in Specification 546,348 is arranged so that under finger pressure upon one side it projects from its normally flush position an amount on the opposite side of the ring sufficient to afford finger or finger nail purchase thereon to draw the frame out. As shown, the locket frame 14 normally disposed flush in a slot between the signet face 11 and a shield 17 closing the space behind the face 11 is pivoted on a pin 18 received in an elongated slot 19 in the frame so that under finger pressure on the side of the frame adjacent the pin 18 the frame slides to projejcts from one opposite side of the ring.
Patent GB-510621-A (GB)
Title: Improvements in high speed rotary pumps
IPC: F01C21/08
Filed: 1938-02-22
Abstract: 510,621. Rotary engines. MASEYK, A. W. Feb. 22, 1938, No. 5492. [Class 110 (ii)] An engine or pump of the outwardly-sliding vane type has a rotor 9 mounted on a shaft supported in bearings 4, 5, and end plates 10, 11, which revolve on bearings 6, 7. Trunnions 13 extend from the vanes and enter grooves in the end plates. One vane has longer trunnions 15 than the others. Recesses 17 are provided in the end plates, and connected to the inner sides of the plates by holes for pressure-balancing purposes. The centre space of the rotor communicates with the suction port, so that leakage fluid is sucked out. The bearings 6, 7, may be dispensed with in small pumps. The Provisional Specification states that the eccentricity of the rotor in its casing may be varied, to vary the delivery of the pump.
Patent GB-714922-A (GB)
Title: Improvements in and relating to laminated driving belts
Inventor: ACTON FRANK
IPC: F16G5/18
Filed: 1951-03-07
Abstract: 714,922. Driving belts. TULLIS & SON. Ltd., J. March 7, 1952 [March 7, 1951], No. 5508/51. Class 80(1) A V-belt comprises a series or overlapping laminations of leather, rubber and canvas, or other material which are held together by onepiece fasteners which are inserted through slots 11 in the laminations and subsequently turned therein to bring the cross-head 16 and crossbase 17 against the belt surfaces. The body 15 of each -fastener is square or rectangular in section and dimensioned so that itmay be forcibly turned in the slots. A projection 18 may be upturned as shown to lock the fastener against turning after assembly. Alternatively, where the body dimensions effectively prevent turning, the projection may be flat or the base may be of simple rectangular form. A U- shaped washer may be placed between the head 16 and the top lamination. The distance' between the slots 11a. 11b is less than the distance 11b, 11c to ensure that each intermediate slot is engaged by the fastener when driving. In a belt where four or more laminations overlap the corresponding number of slots are similarly spaced. Specification 562,910 is referred to.
Patent GB-342166-A (GB)
Title: Improvements relating to weft replenishing looms
IPC: D03D45/50
Filed: 1930-02-19
Abstract: 342,166. Loom shuttles. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Crompton & Knowles Loom Works; Worcester, Massachusetts, U.S.A.) Feb. 19, 1930, No. 5526. [Class 142 (iii).] No holder or clip for the weft ends is used, but the ends from pairs of bobbins are tied together. The loom shown has two shuttle-boxes in vertical alignment and a magazine containing a stack of bobbins W, one of which may be pushed by a hammer 23 into one or each of the shuttles S, portions of the sides of the magazine 25, 30 being pivoted and spring held to permit the passage of the bobbins. A thread-guiding device 40 also hinged to the magazine. and held in normal position by a spring prevents the thread joining a bobbin in the shuttle and another in the magazine from entering the cracks between the main and hinged portions of the side of the magazine. Near the cloth is a spring or a weight 50 with a bevelled lower edge 51 to engage and hold the thread end, the thread being ultimately broken between the weight and the cloth selvage.
Patent GB-549013-A (GB)
Title: Improvements in or relating to pressure fluid operated cartridges
IPC: E21C37/08
Filed: 1941-04-30
Abstract: 549,013. Breaking-down appliances. GULLICK, Ltd., and SEAMAN, T. April 30, 1941. No. 5582. [Class 68 (i)] In a fluid-pressure cartridge for breaking-down material in mines, outward movement of the rams is limited by balls or rollers which are let into the working faces of the cylinders or rams and make rolling contact with the rams or cylinders. In Fig. 2, a hole is bored longitudinally of the cartridge body to form housings 18 between the cylinders 11; balls 21 are inserted in the housings 18 and are then moved into engagement with semi-circular section channels 16 in the rams by insertion of transverse pins 22 which may be threaded or held by pins 24 or both. In Fig. 4, the pins 22 are replaced by pins 25 acting on the balls 21 through bearing blocks with spherical seatings. A ball stop 21 may be located in a housing in the ram as in Fig. 7 and co-operates either with a ballabutment 17 or with a stop adjacent to the mouth of the cylinder. In another form, the rams are arranged so that they will pass beyond their normal inner positions to allow insertion of the balls into housings 18, plugs being then inserted in the base of the ram cylinders to raise the ram and prevent escape of the balls. The device may be applied to cartridges with telescopic rams. Specification 454,180 is referred to.
Patent GB-659788-A (GB)
Title: Improvements in or relating to a method for the production of spinnerets
IPC: D01D4/02
Filed: 1949-03-02
Abstract: Spinnerets are moulded from thermoplastic or thermosetting synthetic resin (see Group V).  Suitable materials are heat-polymerizable monomers such as methyl methacrylate or styrene, or thermosetting compositions capable of forming cross-linked resins and a solution of a catalyst therefor in a polymerizing solvent, e.g. a liquid composition comprising dimethyl acrylic ester of bis-(b -hydroxy ethyl)-phthalate, benzoyl peroxide and butyl methacrylate.
Patent GB-872166-A (GB)
Title: Improvements in conveyors
IPC: B65G39/14
Filed: 1956-05-22
Abstract: 872,166. Endless belt conveyers. GOODMAN MANUFACTURING CO. May 22,1956 [July 11, 1955], No. 5788/59. Divided out of 872,165. Drawings to Specification. Class 78 (1). The subject-matter of this Specification is identical with that of Specification 872,165, but the claims differ. Specifications 872,167, 872,168 and 872,169 also are referred to.
Patent GB-1541561-A (GB)
Title: Cleaning compositions
IPC: C11D17/00
Filed: 1975-02-11
Abstract: C L E A N I N G   C O M P O S I T T O N S Mixtures of alkali metal polyphosphate salts obtained by the neutralisation of a polyphosphoric acid solution which comprises from 80 to 81% by weight of phosphorus pentoxide, have been found to be especially valuable builders for liquid detergents of moderate alkalinity. They combine good sequestering power with relatively high stability on prolonged storage.  The cleaning composition will have a pH in the range 8 to 12.
Patent GB-1291459-A (GB)
Title: Improved furnace
Inventor: LUNDSTROM HANS
IPC: C03B19/06
Filed: 1969-10-23
Abstract: 1291459 Furnace for heating under pressure ALLMANNA SVENSKA ELEKTRISKA AB 23 Oct 1969 [24 Oct 1968] 5873/71 Divided out of 1291458 Heading F4B [Also in Division H5] A furnace for treating material in a gaseous atmosphere at a pressure of 500 bar and a temperature of up to 1500 C. comprises a cylindrical pressure chamber comprising an inner tube 10 and a sheath 11 with an upper end closure 13 projecting into the chamber and sealed to it by a ring 14. The furnace chamber 15 is surrounded by an insulating sheath 17. An insulating cover 25 is supported by a ring 29 clamped between the upper end ring 23 of the sheath 17 and the closure 13. A space between the cover 25 and closure 13 is connected to the furnace space through a pressure equalizing opening. Heating elements 47 supported by rails on the outside of a tube 40 suspended from the cover 25 are supplied by a conductor 35 passing through the closure 13 and cover 25. The lower end of the pressure chamber has a ring 50 permanently sealed to the wall 10 and a cover 51 seating in ring 50. An insulating pad 55 supports the charge 16. The cover 51 and pad 55 are supported by brackets 59 and are raised and lowered by a cylinder 62 to charge the furnace. Atmosphere gas is supplied between the pressure cylinder 10 and the insulating sheath 17 through an inlet 37, and ring 56 supported on the seating ring 50 forms a labyrinth seal with the sheath 17 and the heating element support tube 40. Rings loosely carried at the lower part of the seating 50 fall when the charge is lowered to protect the part against which the cover 51 seals from radiation from the hot charge. A movable press 1 has yokes 3, 4 to engage the top and bottom of the furnace while in use.
Patent GB-1030033-A (GB)
Title: Improvements relating to chuck assemblies
IPC: B23B31/175
Filed: 1964-02-12
Abstract: 1,030,033. Chucks. S-P MANUFACTURING CORPORATION. Feb. 12, 1964 [May 1, 1963], No. 5898/64. Heading B3B. An internal or an external chuck comprises radially movable jaws 23, each carrying a releasable circular work-gripping insert 40. Each jaw 23 is secured by bolts 24 and T-nuts 21 to a slide 16 movable by levers 17 as described in Specification 1,030,032. A key 25 is secured to each jaw by a bolt 28. Each jaw has three screws 24, 34 inserted through recesses 31. Any one of the screws secures a serrated, circular, work-gripping bush 40, the heads of the other screws then serving as work-stops.