baber/WOPTO huggingface dataset:
Patent GB-764800-A (GB)
Title: Power assisted actuator particularly for hydraulic brakes
IPC: B60T11/22
Filed: 1955-02-10
Abstract: 764,800. Hydraulic brakes. BENDIX AVIATION CORPORATION. Feb. 10, 1955 [Feb. 19, 1954], No. 4034/55. Addition to 718,754. Class 103 (1). A pneumatic servo - unit for hydraulic brakes of the kind wherein the pressure in the hydraulic cylinder 301 is transmitted back through the interior of the hollow plunger rod 320 to the air control valve to provide " feel " is characterized in that the transmission is carried out by a first and second reaction means operated successively as the pressure increases in the cylinder 301. As shown in Fig. 2, the pressure in the cylinder 301 is operative at all times to apply a thrust through the resilient cap 258 at one end to a central rod 302, the other end of which is in contact at all times with the valve control member 238. When pressure in cylinder 301 has increased to a certain value, the cap 258 presses the end of rod 302 back through its sleeve 304 and then forces the latter back so as to compress spring 318 against its abutment 314 so that the end of sleeve 304 also bears against the member 238. Feel is thus transmitted to the operator in two stages with an intensity depending on the relative cross-sectional areas of the rod 302 and sleeve 304. Reference has been directed by the Comptroller to Specification 678,248.
Patent GB-1475541-A (GB)
Title: Polyurethane foams
IPC: C08G18/42
Filed: 1974-01-29
Abstract: 1475541 Polyurethane foams IMPERIAL CHEMICAL INDUSTRIES Ltd 30 Dec 1974 [29 Jan 1974] 4073/74 Heading C3R Polyurethane foams are manufactured by a process which comprises reacting an organic polyisocyanate with a liquid polyester polyol which is a condensation product of at least one polyol and a mixture of glutaric, adipic and succinic acids containing from 5-95% wt. of glutaric acid in the presence of a blowing agent. Suitable polyols are ethylene glycol, propylene glycol, tetramethylene glycol, diethylene glycol, decamethylene glycol, glycerol, trimethylolpropane and pentaerythritol. Preferred polyisocyanates are aromatic polyisocyanates. The reaction mixture may also contain conventional ingredients such as catalysts, e.g. tertiary amines and organic tin compounds, cross-linking or chain lengthening agents, e.g. triethanolamine, ethylene glycol and m-phenylene diamine; flame retardants, e.g. tris haloalkylphosphates; and fillers, e.g. polyvinyl chloride. Suitable blowing agents are water and inert volatile liquids, e.g. halohydrocarbons. The density of the foamed product may be modified by foaming the reaction mixture in a closed mould having a volume less than that which would be occupied by the resultant foam if the reaction mixture were allowed to rise freely. In the examples microcellular elastomers are prepared by reacting 4,41-diphenylmethane-diisocyanate with a mixture consisting of 1,4- butane-diol, water, an amine catalyst and a polyester prepared from adipic acid, glutaric acid or anhydride, succinic acid or anhydride, and ethylene glycol and casting the foaming mixture into a mould at 50‹ C. the volume of which is half the volume which the product would have occupied if free rise had been allowed. The product is cured at ambient temperature.
Patent GB-273204-A (GB)
Title: Improvements in or relating to closures for show-jars for confectionery or the like
IPC: A47F3/14
Filed: 1927-02-14
Abstract: 273,204. Wade, H., (Naamlooze Vennootschap Machinefabriek Probat). Feb. 14. 1927. Internal fittings.-In a show jar provided with a drying plate, the plate, its container 20, and a perforated cover for the container are secured to the cover of the jar by a single screw.
Patent GB-572121-A (GB)
Title: Improvements in locking devices for temporary clamping together two or more pieces of sheet metal
IPC: B25B31/00
Filed: 1944-03-07
Abstract: 572,121. Clamps. ARMSTRONG WHITWORTH AIRCRAFT, Ltd., SIR W. G., and FISHER, M. March 7, 1944, No. 4182. [Class 44] [Also in Group XXII] Plate clamps for use in riveting &c. are formed in three parts, a tension member 21 with a hook end 24 for engaging under the plates 13, an abutment member 10 engaging above the plates and a nut 18 screwing on the end 25 of the part 21 to tension it by abutting the part 10. The part 21 is cut away to semi-circular section at 22, this portion being further cut to form plates 23. The part 10 is formed from a length of spring wire with a coiled end 17 and a looped end 14 flattened at 15 and provided with a semicylindrical end 11 to enter the hole in the plates.
Patent GB-253961-A (GB)
Title: Improvements in apparatus for regulating the flow of gases
IPC: G05D7/01
Filed: 1925-11-14
Abstract: 253,961. Amalgamated Dental Co., Ltd., and Weller, F. W. Nov. 14, 1925. Flow meters, pressure-actuated.-A visual and audible indication of gas flow is given by means of a vulcanite sleeve 50 which, sliding on a pipe extension 49, rises through an opening 57 in an opaque disc 55 and strikes a glass, cover 53. Two indicators are shown in one chamber 47 and are of use when two gases such as nitrous oxide and oxygen are used for anµsthetic purposes. The device is used in conjunction with a pressure reducing valve.
Patent GB-847161-A (GB)
Title: "means for dividing a stream of powdered or like materials"
IPC: B65G47/72
Filed: 1959-02-03
Abstract: 847,161. Jigging conveyers. SIMON Ltd., H. Feb. 3, 1959 [Feb. 10, 1958], No. 4227/58. Class 78 (1). The vibrating spreader feeder 2 described in Specification 842,560 is in fixed association with a hopper 1 having a series of outlet ports 3 with separating barriers 4 therebetween on which are mounted hinged deflector plates 5. The plates are adjusted so that desired proportionate sections of the curtain of material discharged over the edge 10 may be directed to selected ports. The plates are secured in position by a clamping bar 8 and nuts 7.
Patent GB-728593-A (GB)
Title: Improvements relating to motor vehicles
IPC: B60N2/34
Filed: 1952-02-18
Abstract: 728,593. Vehicle bodies. DAIMLER-BENZ AKT.-GES. Feb. 18, 1952 [Feb. 16, 1951; Feb. 21, 1951; Feb. 21, 1951], No. 4305/52. Drawings to Specification. Class 108 (1). A motor vehicle has a rectangular floor space and is provided with seats and articles of luggage &c. arranged in three longitudinal zones, the seats in at least one side zone being convertible into a divan.
Patent GB-361735-A (GB)
Title: Improvements in and relating to cleaning mechanism for the flat cards of carding engines
IPC: D01G15/78
Filed: 1931-02-12
Abstract: 361,735. Cleaning the flats of carding- engines. COOK & CO. (MANCHESTER), Ltd. and CHARNOCK, C. J., 18, Exchange Street, Manchester. Feb. 12, 1931, No. 4387. [Class 120 (i).] In mechanism comprising rotary brushes for cleaning the flats of carding engines, two toothed wheels 6, 7 with their teeth set in opposite directions are mounted on the same end of the brush shaft 4 and the wheels are actuated by pawls 13, 14, respectively, the pawl 14 being pivotally mounted on an arm 11 carrying the other pawl, and adjustable about its pivot so that the reverse rotation it imparts to the brush shaft is less than the forward rotation imparted by the pawl 13. The arm 11 is mounted on a cross member pivoted to an arm 9 on an oscillating shaft 8. The lost motion movement afforded by the pawl 14 is varied by raising the pawl away from or lowering it towards the wheel 7 by means of a screw 16 which passes through a projecting arm 15 on the pawl and rests on an enlarged portion of the arm 11. The brush may be formed of bristles or a wire fillet or fillets only, or of a combination of the two.
Patent GB-563546-A (GB)
Title: Improvements relating to jigs for use in grinding drill bits
IPC: B24B41/06
Filed: 1943-03-18
Abstract: 563,546. Grinding drill bits. CROFTON & CO. (ENGINEERS), Ltd., C., WILES, R. C., and CAMERON, A. March 18, 1943, No. 4425. [Class 60] In grinding the backing-off of rotary drill bits used for drilling coal, rock, &c., for example, as shown, having two blades or wings tipped with tungsten carbide &c. h with two outer cutting faces 1, 2 and two inner cutting faces 3, 4, all of which have to be backed off, a jig a is employed comprising a block of brass, plastic material, &c. in the face o of which is a twolobed recess f and a central hole, and which has two inclined side faces m, n, the angle of inclination of the faces to a plane at right angles to the axis of the central hole corresponding to the backing-off angle of the bit b. The recess f receives the base of the wings of the bit, as shown in dotted lines in Fig. 1, and the shank d of the bit is held in the central hole in the block by a screwed stem and handle c. In use, the jig is laid on one of its inclined faces upon the table t at the right-hand side, or upon the table t<1> at.the left-hand side of a grinding- wheel g, the stem c serving for moving the jig back and forth over the table with the bit in contact with the wheel g. Face 1 is ground first and the jig is then turned over and laid upon table t<1> to grind the face 3 ; faces 2 and 4 are ground by releasing the bit and turning it 180 degrees in the jig and re-clamping, or may be ground without releasing the bit by setting the jig with the stem projecting in the opposite direction, as in Fig. 6. The tables t, t<1> may have sight lines thereon, parallel to the faces of the wheel g, to assist in guiding the jig ; end faces of the jig also may be inclined for grinding other faces of the bit, corresponding holes being provided for the screwed stem c. A gauge plate may be provided, having various forms for checking the face angles of a bit.
Patent GB-363886-A (GB)
Title: Improvements in central buffing and draw gear for railway vehicles
IPC: B61G9/06
Filed: 1931-02-12
Abstract: 363,886. Combined buffer and drawgear for railway vehicles. SPENCER, MOULTON, & CO., Ltd., G. and GLASCODINE, R. T., 2, Central Buildings, Westminster. Feb. 12, 1931, No. 4479. [Class 103 (v).] In a central buffing and draw-gear for railway vehicles indiarubber buffing springs 11, 19 are located in a housing 12 in front of the headstock 1, while the rear face 18 of the coupler shank 5 abuts against a rocking plate 17 associated with the springs so that, when the coupler becomes inclined to the draw-rod 4, e.g. on a curve, the springs 11, 19 are compressed and the draw-rod is relieved of lateral stress. Conveniently the forward end of the drawrod is pivoted at 6 to the coupler shank, while its rear end is surrounded by a draw-spring 7 disposed between follower plates 8, 9, the springs in front of the headstock comprising a forward light spring 19 to allow the rocking movement separated by a plate 15 from a heavier rear spring 11 that, in the main, absorbs the buffing shocks. The draw-rod passes through a bushing 3 in a headstock casting 2, and may either fit tightly within the bushing, or, as shown, be permitted a limited lateral play, the follower plate 8 in this case having a protuberance 31 allowing the plate to rock relative to a fixed block 32 in the casting 2. The rocking plate 17 has rearwardly extending flanges 20 normally out of contact with the plate 15, but brought into contact therewith during the rocking movement, while the plate 15 may have lugs 25 for guiding the flanges 20. The springs 7 are preferably of the compound metal plate and rubber type.
Patent GB-320834-A (GB)
Title: Improvements in sparking plugs
IPC: H01T13/54
Filed: 1929-02-11
Abstract: 320,834. Kopf, H. Feb. 11, 1929. Addition to 285,268. Sparking-plugs. - The end of the casing is closed by a hemispherical cap 6 having a transverse slot 6 and oblique slots 7. The adjacent part 4 of the, central electrode is renewable and comprises an internally threaded thicker portion 8 and conical shoulder 9.
Patent GB-708711-A (GB)
Title: Improvements in or relating to a device for supplying anti-detonants to internal combustion engines
IPC: F02M7/12
Filed: 1949-02-21
Abstract: 708,711. Spray carburetters; treating charge. THOMPSON PRODUCTS, Inc. Feb. 21, 1949 [Aug. 6, 1948; Oct. 27, 1948; Oct. 27, 1948], Nos. 4661/49, 4662/49 and 4663/49. Classes 7(2) and 7(3) Anti-detonant from a float chamber 17, Fig. 2, is fed to the intake manifold or carburetter mixing passage past a metering valve 70 controlled by a diaphragm 22 subjected to intake manifold suction, the valve 70 having a bore 75 through which air flows to weaken the anti-detonant above a predetermined intake manifold suction. The anti-detonant preferably undergoes an initial aeration in a tube 62 and at high power outputs i.e. low manifold suction, an orifice 74 rests on a member 77 to close the auxiliary air bore 75, whereby a rich anti-detonant-air mixture is fed to a nozzle 15 in a flange 11 between the carburetter outlet 12 and intake manifold 13. When the suction increases, the valve 70 moves towards its seat 59, reducing the antidetonant flow and simultaneously admitting air through the bore 75 to weaken the anti-detonant mixture. At idling the valve 70 contacts its seat 59 and cuts off both the anti-detonant and the auxiliary air flow. In a modification the member 77 is replaced by a flat resilient pad and in Fig. 6 the auxiliary air passage 89 in the valve 70 co-operates with a recess 92 so that the air is only supplied over a short range between full open and closed position of the valve 70. The flange 11 may be positioned adjacent the carburetter Venturi so that the nozzle 15 opens into the lower part of the Venturi, and in Fig. 9 the anti-detonant device is bolted to a flat face 115 on the Venturi tube 112 and the anti-detonant is delivered through a nozzle 158 the outlet 159 of which is situated in the Venturi throat 125a and adjacent the outlet of an auxiliary Venturi 126 into which the main fuel nozzle 127 delivers. The carburetter has a choke valve 133 with a spring-loaded suction operated valve combined therewith and the throttle valve 123 is arranged in a conduit member 122 separate from and bolted to the main carburetter body 112. A power jet 128 has a spring-loaded valve therein controlled by a piston 130 actuated by intake manifold suction.
Patent GB-1057772-A (GB)
Title: Improvements in or relating to deformable fasteners e.g. for mounting in openings in panels
IPC: F16B19/10
Filed: 1964-02-04
Abstract: 1,057,772. Rivets. TINNERMAN PRODUCTS Inc. Feb. 4, 1964 [Feb. 14, 1963], No. 4681/64. Heading F2H. [Also in Division E2] A deformable one-piece fastener, e.g. of malleable cold rolled steel, for mounting in a panel opening, has a head including a pair of tabs and a loop-like body portion interconnecting the tabs, so that when the body is passed through the opening with the head engaging one side of the panel and at least one of the tabs is moved, e.g. by a pair of pliers, the body is deformed to secure the fastener. In Fig. 25, a somewhat square loop 122 is formed partly by a narrow tongue while wings 124 on each tab 123 form a T-shape, Fig. 26 (not shown), reinforced by an embossed rib 120. In this embodiment, two opposed legs 126 diverge from the bottom of the loop to engage sloping surfaces 127 on the fastener sides so that when the fastener is inserted through two panels P, P<SP>1</SP>, Fig. 27, and the two tabs are pressed together with contacting of fulcrum surfaces 131, the loop 122 is flattened as shown and the legs 126 contact the panel P<SP>1</SP> and slide apart at their free ends. In simpler forms, Figs. 1-16 (not shown, apart from Fig. 7), there are no legs 126. In Fig. 7 the tabs are not T-shaped, having no wings, but the rectangular ends 24 are normally wide apart and parallel to the fastener axis, Fig. 5 (not shown), until the tabs are moved together to deform the loop 16<SP>1</SP>, as shown, to secure panels A, B. The ends 24 may be deformed towards each other from the position shown and this tends to pull the fastener up through the opening. In Figs. 8-10 (not shown), the embossed ribs project inwardly towards each other and their surfaces therefore form the fulcrum for the tabs. In Figs. 17, 18 also, large channels or ribs 104 project inwardly, but in this embodiment the wings 109 are of angle section and when the fastener is secured, Fig. 20 (not shown), surfaces 113 abut each other, the loop 108 is flattened until straight and the wings 109 are tilted up so that their bottom limbs diverge from the panel face and form sloping faces over which the edges of a resilient channel moulding can ride down to the panel for securement. In a similar form, Figs. 21-23 (not shown), but with flat wings, the wing ends are each double-bevelled to a point and thus provide edge faces to hold a channel moulding extending in this case in the direction of deformation of the loop instead of transversely to it. In Figs. 11-13 (not shown), the loop is rounder and enveloped in a cap-shaped sealing member with a brim so that when the fastener is secured the cap crown and the opening is sealed. In Figs. 14-16 (not shown), the tabs are extended and the extensions are return-bent inwardly along the tabs to provide a double thickness of each tab and there are two parallel loops at the outer edges of the fastener separated by a middle cut-out portion.
Patent GB-371514-A (GB)
Title: Means or apparatus for rendering fryers' scraps and the like
IPC: C11B13/00
Filed: 1931-02-14
Abstract: Apparatus for obtaining dripping from fryers' scraps &c comprises a cylindrical shell 1 removably fitted with a wire basket 13 or like deep perforated holder for the scraps, a container 5 for water adapted to be boiled by a gas jet 3, a drip collector 8 having a pipe 9 to discharge the dripping into a pipe 10, and a sieve 11 preventing scraps falling into the dripping. There may be provided a condenser 20 on the lid 15, and means for compressing the scraps e.g. a plate fitted in the mouth of the basket 13 and secured to a threaded rod passing <PICT:0371514/III/1> through the lid.  The shell 1 may be closed by a plate immediately below the container 5, air-holes being formed in the plate or in the side walls of the shell.
Patent GB-577320-A (GB)
Title: Improvements in or relating to recoil compensating charges for projectors for explosive or other projectiles
IPC: F41A1/10
Filed: 1943-03-23
Abstract: 577,320. Gun ammunition. WHITE, A. G., SILLITTO, G. P., and IMPERIAL CHEMICAL INDUSTRIES, Ltd, March 23, 1943, No. 4712. [Class 9 (i)] A dummy charge which is expelled rearwardly and disintegrates harmlessly on the discharge of an open-breech firearm to eliminate recoil has the centre of gravity offset from the longitudinal axis whereby the emerging end of the package containing the dummy charge is turned out of the stream of propellant gas, on discharge, thereby facilitating disintegration. The asymmetrical location of the centre of gravity may be secured by forming the main recoil-eliminating charge described in Specification 577,318 in two semi-cylindrical envelopes joined by an adhesive, the envelopes containing non-explosive powders 16, 15 of different densities.
Patent GB-889643-A (GB)
Title: Fractionating column with stepped trays
IPC: C22B19/18
Filed: 1959-02-11
Abstract: 889,643. Refining zinc. AMERICAN METAL CLIMAX Inc. Feb. 11, 1959 [March 3, 1958], No. 4763/59. Class 82(1). [Also in Group XII] Zinc is separated from contaminants such as cadmium, iron and lead by fractional distillation in a column, made of refractory material, which contains vertically-spaced trays 15 the ends of which are supported, loosely and movably, on ledges 19, 23 formed on the walls of the column, the trays being made up of abutting elements 16, with raised edges 28, arranged so that the upper face of each tray holds a stepped-down series of shallow pools of liquid metal (about ¢ inch deep). The liquid cascades down over weirs 18 from pool to pool on each tray, and then pours down to the highest pool of the next lower tray. The ascending vapour is deflected against the surface of the pools of liquid by deflectors 25. The lowermost element 16 of each tray rests directly on ledge 19, while the next higher element rests on a spacer 20 disposed between that element and ledge 19; and similar spacers 21, 22 are placed between successively higher elements and ledge 19. The uppermost element of each tray is supported by ledge 23 and spacer 24. The column may be constructed of graphite, firebrick, or silicon carbide. Radiation-heating tubes may be disposed between the trays in the lower part of the column; and cooling tubes may be disposed in the upper part of the column.
Patent GB-548313-A (GB)
Title: Improved speed-ratio providing pulley or sprocket-wheel
IPC: F16H9/04
Filed: 1941-04-10
Abstract: 548,313. Epicyclic gearing; belt tensioning devices. WEARN, J. S. April 10, 1941, No. 4790. [Class 80 (i)] A speed ratio providing pulley or sprocket wheel for use on a shaft comprises a sun 4, planets 7, and annulus 5, the planet carrier 6 and the annulus 5 being provided one with a pulley or sprocket wheel 13, and the other with means adapted to bear against a belt or chain driving or driven by the said pulley or sprocket wheel so as to restrain the rotation of the annulus or planet carrier and provide a take-up to tension the belt or chain. As shown; both planet carrier 6 and annulus 5 are journalled on extensions of the sun 4 which is keyed to the driving or driven shaft 1. The annulus 5 has an arm 14 supporting a roller 16 bearing upon the belt 17. Thus the annulus is restrained from rotation, and the belt 17 is tensioned. In a modification the belt pulley is formed on the annulus and an arm on the planet carrier has the means bearing on the belt.
Patent GB-564447-A (GB)
Title: Improvements in and relating to the moulding of concrete structures
IPC: E04B2/86
Filed: 1943-03-26
Abstract: 564,447. Moulding structures in situ. SHINGLETON, L. March 26, 1943, No. 4956. Addition to 558,239. [Class 20 (ii)] The invention claimed in the parent Specification is applied to the moulding of structures in which the permanent shuttering for walls, floors, roofs, &c. consists of sheets comprising cement with fibrous material therein, e.g. wood wool or asbestos cement sheets, with or without internal reinforcement.
Patent GB-794071-A (GB)
Title: A reinforced skin-stressed fairing for single-track vehicles
Inventor: BAUMM GUSTAV ADOLF
IPC: B62D61/02
Filed: 1956-02-17
Abstract: 794,071. Vehicle bodies. NSU WERKE AKT.-GES. Feb. 17, 1956, No. 5040/56. Addition to 790,339. Class 108(1) A self-supporting body has reinforcing members 3 and 4 extending obliquely from the keel reinforcing member 5 to positions substantially vertically above the road wheels where they are joined by members 8 and 9 arranged in vertical planes. The wheel opening may be edge stiffened by members 6, 7 joined also to the key member 5 and further members 10 may support a pivoted hood. The wheel openings may be enclosed by sheet members extending between the upper and lower parts of the body.
Patent GB-490757-A (GB)
Title: Improvements in moulds for use in the manufacture of cast synthetic resins by the polymerisation of organic liquids
IPC: B29C33/38
Filed: 1937-02-19
Abstract: Cast synthetic resins are prepared by carrying out the polymerization in a mould constructed of lead alloyed with a small proportion of tin.  In an example methyl methacrylate is polymerized in a mould made of an alloy comprising 98 per cent lead and 2 per cent of tin. The mould is prepared by dipping a steel master mould into the molten alloy and stripping off the solidified layer.ALSO:Cast synthetic resins are prepared by carrying out the polymerization in a mould constructed of lead alloyed with a small proportion of tin.