baber/WOPTO huggingface dataset:
Patent GB-1043331-A (GB)
Title: Improvements in or relating to actuating cylinders for disc brakes
IPC: F16J15/32
Filed: 1964-05-29
Abstract: 1,043,331. Disc brake actuating cylinders; piston packing. TEVES, H., TEVES, E. A., and TAUSEND, M., [trading as TEVES MASCHINEN - UND ARMATURENFABRIK KOMM. GES. ALFRED]. May 29, 1964 [June 5, 1963], No.22321/64. Headings F2B, F2E, F2F and F2T. In a disc brake actuator cylinder a ring gasket 7, 8 of substantially rectangular crosssection when unstressed is disposed in a groove of trapezoidal cross-section in the cylinder wall 5, 6 (Fig. 1) or in the piston 4 (Fig. 2), and is stressed radially into sealing engagement with the cylinder wall or piston so as to take the shape of the groove, the latter having substantially parallel side walls and a base inclined thereto. The groove is chamfered at 9 or 10 to leave an annular chamber between the groove wall, the sealing surface and the ring gasket such that when the brake is applied the piston moves the gasket which slides up on the wedge surface 15 is deformed and forced into the annular chamber 9, 10. When the disc returns to its normal plane of rotation the gasket is released and returns to the position illustrated in which it urges the piston 3, 4 out of the cylinder 5, 6 towards the brake disc 1. In the embodiment shown in Fig. 2, when disc wobble occurs, the piston 4 is forced into the working chamber 13 and since the gasket 8 still engages with the sealing surface 17 of the cylinder the gasket 8 slides along the wedge surface 19 and is forced into the annular chamber 10. When the disc returns to its normal plane of rotation the gasket 8 is released and forces the piston 4 out of the cylinder 6 towards the brake disc 1. In an alternative embodiment (Fig. 3e, not shown) the gasket 7 is rebated and the gasket is formed with a round groove which, because of the prestressing, applies suction to the sealing surface.
Patent GB-734291-A (GB)
Title: Improvements in conveyors
Inventor: SEARLE GEORGE HAZELL
IPC: B65B43/54
Filed: 1952-09-05
Abstract: 734,291. Endless conveyers. WALL & SONS, Ltd., T. Aug. 18, 1953 [Sept. 5, 1952], No. 22334/52. Class 78 (1). A conveyer for transporting containers, e.g. paper bags of triangular section as described in Specification 732,434, [Group XVII], includes a carrier consisting of a backing member to which is pivotally connected a platform, the member and platform being adapted to ba held face to face under the action of a counterpoise to support a container between them. As shown, the backing member 95 is rectangular and is provided with three bars 96 having triangular serrations 97 to accommodate a plurality of the triangular section bags 88. Brackets 93 on the member 95 serve to suspend it from opposed pins 92 on a pair of endless chains-80. The platform 98 of open construction, is pivoted at 99 to the backing member and carries a counterweight 102 by means of arms 101, the counterweight being heavier than the platform so that the latter normally pivots up against member 95 to hold the bags 88 within the recesses 97. When it is desired to discharge the bags or/and feed a fresh batch to the recesses 97 the platform is swung down to free the bags by cams 90 on the conveyer track engaging pins 103 on the platform. The conveyer may be used to move the bags past a filling station as described in Specification 734,290.
Patent GB-1015019-A (GB)
Title: Improvements in or relating to convertibe sofas
IPC: A47C17/16
Filed: 1964-05-29
Abstract: 1,015,019. Bed-settees. SKALMA A/S. May 29, 1964 [May 4, 1964], No. 22402/64. Heading A4J. A bed-settee comprising a single seat 4 and back 3, which together form the bed surface, is converted into a bed by lifting the front edge of the seat until it is vertical and the back 3 horizontal, then folding the seat horizontal, during which movement legs 7 are automatically pivoted out to a supporting position by links 10. The links 10, whose ends are slidably received in slits 13 in angular girders 14, have stop member 11 which abut the girders 14 during the downward movement and cause the legs 7 to pivot. The legs are automatically folded by springs 8 when the seat is lifted. Guides are provided in side members 2 to guide the seat 4 and back 3.
Patent GB-1299300-A (GB)
Title: Improvements in or relating to magnetic systems
IPC: H01F7/02
Filed: 1971-04-19
Abstract: 1299300 Permanent magnets BOHLER & CO AG GEB 19 April 1971 [24 Feb 1970] 22441/71 Heading H1P [Also in Division H4] A magnetic system defining an airgap comprises two U-shaped permanent magnets 1 of specified alloy with like poles abutting prismatic iron yoke members 2 of specified composition provided with inwardly extending integral truncated conical or pyramidical iron poles 9 of specified composition defining an airgap between their parallel faces adjustable by a screw and nut 3, 4; the components of the system being retained by two cinctures 7 secured by bolts and nuts. In modifications (Figs. 2, 3, not shown) the magnets may abut with unlike poles on pairs of iron pole shoes of the foregoing type defining two oppositely disposed airgaps, and one such pair of shoes may be replaced by a solid iron yoke. The components are mounted on a non- magnetic plate over non-magnetic spacers, and to produce artificial reverberation for electronic audio circuit a current coil is interposed in the airgap for conversion of electromagnetic energy into mechanical vibrations  The permanent magnets may be 8-9% Al, 23-25% Co, 3-4% Cu, 14-16% Ni, and the remainder iron, or 6À5-7% Al, 30-34% Co, 4-5% Cu, 14-16% Ni, 5-6% Ti and the remainder iron, while the yokes and polepieces may be 0À06-0À12% C, 0À15-0À35% Si, 0À25- 0À50% Mn, 0-0À35% P, 0-0À35% S, and the remainder iron.
Patent GB-258419-A (GB)
Title: Improvements in apparatus for the treatment of peat
IPC: C10F5/00
Filed: 1925-09-08
Abstract: 258,419. Perkin, F. M. Sept. 8, 1925 Peat, preparing.-In a process in which peat is macerated, treated in an autoclave and then discharged into a pressure-release vessel, the macerator a is situated at a higher level than the autoclave e and pressure-release vessel k so that the process may be largely worked by gravity feed. Serrated &c. rollers c, heated or not and running counter to one another tear up the peat fibre; moisture may be expressed by further smooth rollers (not shown) and by a helical screw conveyer d. A filter press, centrifugal separator or the like may be interposed between a sluice valve f and the autoclave, which is fitted with stirring gear and may be steam jacketed, or superheated steam at 125-140‹ C may be ad mitted through a hollow shaft or an inlet h.
Patent GB-598337-A (GB)
Title: Means for holding turning windows or doors
IPC: E05C17/28
Filed: 1945-09-01
Abstract: 598,337. Stays. LEWIN, G. E. W. Sept. 1, 1945, No. 22539. Convention date, Sept. 7, 1944. [Class 65 (i)] A window &c. stay of the type .in which a rod 2 is pivotally connected at one end to the frame and at the other end to a member 5 slidable in a guide member 1 secured to the window, the slidable member being adapted to be clamped to the guide member by means of a cam member 4 rotatably mounted on the slidable member, is characterized by the provision between the guide and the cam members of a lockplate 8 which is rotatable about the axis of the cam member.
Patent GB-1195315-A (GB)
Title: Magnetic Head
Inventor: SCHWARTZ HERBERT MILTON
IPC: G11B5/133
Filed: 1968-05-13
Abstract: 1,195,315. Magnetic heads. R.C.A. CORPORATION. 13 May, 1968 [12 May, 1967], No. 22555/68. Heading G5R. A magnetic head, e.g. for transverse-scan video tape recorders, is manufactured by:- (a) Taking C-cores 13, 14 of single crystal ferrite material, such as 16% Mn; 52% Fe; 4% Zn, and lapping or grinding the mating surfaces. (b) Compressing the cores and a chromium, molybdenum, tungsten or alumina gap spacer 17 under a tapering force profile in a vise-like structure 25, 26. (c) Locating solder glass 15, 18 adjacent the sides of gap 17 and back gap 16 and heating the assembly with an oxy-acetylene torch to secure the parts together, any glass reaching the record-contacting surface 24 being subsequently removed by lapping, and (d) Providing a record or playback winding through aperture 19.
Patent GB-447099-A (GB)
Title: Improvements in or relating to electric musical instruments
IPC: G10H1/047
Filed: 1935-08-09
Abstract: 447,099. Musical instruments. COMPTON, J., Chase Road, Willesden, London. Aug. 9, 1935, No. 22556. [Class 88 (ii)] [See also Group XXXIX] In electrical apparatus for imitating the sound of bells, e.g. by picking up sounds from a percussion instrument, or using electrically generated currents, the microphone or loudspeaker or a sound reflector associated therewith is rotated or oscillated so as to produce sound variations simulating the swinging of a bell. As shown, the loud-speaker 1 is carried by a spindle 4 connected by cranks 7, 13 and link 14 to a shaft 9 driven by motor 8. The crank 7 is longer than 13 so that the loudspeaker is oscillated, but the arrangement may be such that it is continuously rotated. The loud-speaker connections may be made through slip-rings.
Patent GB-647187-A (GB)
Title: Improvements in and relating to mountings for ball bearings
IPC: F16C35/077
Filed: 1948-08-27
Abstract: 647,187. Bearings. BRITISH THOMSONHOUSTON-CO., Ltd., MORTON, C. J., and WOODFIELD, T. H. Aug. 27, 1948, Nos. 22682/48 and 2159/49. [Class 12 (i)] [Also in Group XXII] A resilient mounting between the outer race 13 of a ball or roller bearing 14, or a sleeve bearing, and the inner surface of a housing 1 comprises a thin strip of springy metal 1 having rims of circular shape, and the portion intermediate the rims of substantially polygonal configuration so as to exert radial pressure between the race 13 and housing 1. Regularlyspaced transverse slots may be provided in the strip to enable it to assume the substantially polygonal configuration when bent. Flanges may be formed at the sides. As shown, the width of the packing-member 1 is made greater than the width of the sleeve member , so as to accommodate a pre-loading spring 5 which may be any of the types described in Specification 627,260.
Patent GB-500885-A (GB)
Title: Improvements relating to carpet sweepers
IPC: A47L11/33
Filed: 1937-08-19
Abstract: 500,885. Carpet - sweepers; handles. DICKEY, C. Aug. 19, 1937, No. 22715. [Classes 61 (i) and 138 (i)] The handle w of a carpet-sweeper is secured to a short stem q projecting from the centre of a rod p rotatably mounted in the end walls of the sweeper casing a. The stem projects through a slot in the cover b, and carries a sliding dust shield y. One end of the rod projects from the casing and carries a plate s, which is biassed by springs t normally to hold the stem perpendicular to the cover, and has notches v co-operating with a spring u to retain the stem in definite angular positions when the sweeper is in use. Alternatively, the end of the rod may be cranked and co-operate ,with a spring-supported plate or a bent wire spring. The stem may comprise a plain or screw-threaded socket to receive the handle, and a fixed dust shield may be provided inside the casing. According to the Provisional Specification, the rod may be enclosed in a tube or shield within the casing.
Patent GB-787526-A (GB)
Title: Improvements relating to lifts
IPC: B66B1/42
Filed: 1955-08-08
Abstract: 787,526. Lifts. EVANS LIFTS, Ltd., and WESTON, D. H. Aug. 2, 1956 [Aug. 8, 1955], No. 22781/55. Class 78 (3). Automatic floor levelling of a lift car 4 is effected by a pair of fluid pressure rams 22 which adjust the position of the anchored end 16 of the hoisting cable 8. Every time the car is raised or lowered these rams are extended by hydraulic fluid fed thereto by a motor-driven pump 30, pipe 34, a relief valve 35, a non-return valve 36 and pipes 23, 24. Also in circuit with pipes 23, 24 is a solenoid-operated drain valve 40 which is opened to exhaust fluid from rams 22, so lowering the car, when it has been stopped slightly above a desired floor level by the main lifting motor 10 and its associated control gear. A stationary cam 54 co-operates with a switch arm 56 on the car which controls the solenoid in valve 40. A further cam and switch arm 55, 57 causes restarting of pump 30, to effect " levelling up " of the car, should it be stopped below the desired floor level.
Patent GB-831975-A (GB)
Title: Improvements relating to suction units for paper-making machines and the like
Inventor: WESTON-EVANS JAMES WILLIAM
IPC: D21F1/52
Filed: 1956-07-24
Abstract: 831,975. Suction belts of paper-making machines. EVANS & SON Ltd., W. P. July 19, 1957 [July 24, 1956], No. 22802/56. Class 96. The wire-cloth 15 of a paper-making machine is supported as it travels over suction boxes 16 which are exhausted at 7, by a belt 1 of rubber &c. travelling about rollers 2, 3, the belt 1 being grooved transversely of the machine and having openings 11 registering with openings 9 in the suction boxes. The belt 1 is reinforced by non- extensible, flexible, shrink-resistant material, e.g. a closely woven, tinned phosphor bronze or tinned iron or brass wire mesh bonded to the belt and either arranged clear of the openings 11, or being such that these openings may be punched without tearing the rubber &c. The wire mesh may be embedded in a flowable mix of relatively pure rubber before being vulcanized to the main body of the belt 1. Specifications 421,604 and 622,644 are referred to.
Patent GB-336029-A (GB)
Title: Improvements in or relating to harvesters
IPC: A01D75/28
Filed: 1929-07-24
Abstract: 336,029. Jackson, L. Mellersh-, (Caterpillar Tractor Co.). July 24, 1929. Reaping-machines and harvesting- machines.-In order to enable a combined harvesting and thrashing machine to operate efficiently on hilly as well as flat country, each ground wheel 24 of the harvester 6 is mounted on an axle 23 supported by a crank 22 journaled on a stub axle 21 carried by a cross-member 15 secured to the frame 7 of the harvester. Pivotally mounted on ears 26, 27 secured to the crank arm is a screw shaft 28 which is supported near its end by a bifurcated carrier 29 having trunnions 31, 32 supported by the arms 36, 37 of a yoke 34, the shank of which is journaled in the upper end of a bracket 11 which is mounted on the main axle 9 of the harvester. A hub 41, Fig. 3, is in engagement with the shaft 28 between the ends of the carrier 29, and a wheel 43 integral with the part 41 gears with a wheel 44 mounted at the upper end of a shaft 46 mounted in bearings on a boss 49 projecting from the carrier 29. A friction wheel 51 on the lower end of the shaft 46 is adapted to be engaged by one of two friction cones 52, 53 mounted on a shaft 54, the shaft itself being mounted so that it can be moved axially so as to engage either of the cones with the friction wheel 51, thus causing upward or downward movement of the shaft 28 and of the ground wheel. The shaft 54 may be driven by means of a chain 66 passing over a sprocket wheel 56 and a sprocket 67 on a shaft 69 mounted in bearings 71, 72 carried by the bracket 11. A sprocket 73 is operated by a chain which is connected to the main gearing of the harvester.
Patent GB-1191348-A (GB)
Title: Method for the Transfer of Images on to the Surface of Elastomeric Articles
IPC: A63B45/02
Filed: 1967-05-17
Abstract: 1,191,348. Transfers. INDUSTRIAS SALVER S.A. 17 May, 1967 [6 Feb., 1967], No. 22837/67. Heading B6C. Images are transferred to surfaces of elastomeric articles made of vinyl resins by a method which comprises printing on a hydrocarbon resin film with a vinyl resin based ink, applying a coating of varnish, prepared by dissolving vinyl resin in a suitable solvent, either to the surface of the article or to the image-carrying area of the film, partially allowing the varnish to dry, contacting the film with the article, stretching the film on the article while the varnish is still tacky, allowing the varnish to dry and stripping the film from the article. The article may be flat or otherwise, regular or irregular, and is preferably a hollow, inflatable ball which is only partially inflated when the film is applied, and which is further inflated to stretch the film across its surface and remove wrinkles; the material of the ball is preferably a vinyl chloride-vinyl acetate copolymer. The film is preferably formed of polyethylene, polypropylene or polystyrene; the varnish is preferably a vinyl chloride-vinyl acetate copolymer dissolved in methyl ethyl ketone, methyl isobutyl ketone, benzene, toluene, xylene or mixtures thereof. The ink may also be based on the same vinyl copolymer together with pigments and a solvent to form a printing paste. The resins are chosen to have suitable bonding strengths, i.e. the film bonds relatively weakly to the ink, which bonds strongly to the elastomeric article, while the varnish bonds strongly to both the ink and the article. Apparatus, Fig. 3.-A fixed platen 10 is mounted above a movable platen 11 carried by rods 13, 14 (35, 36) (also Fig. 2, not shown) and vertically slidable under the action of fluid-pressure cylinder 25; the platen 10 includes a cylindrical carrier 17 having a hollow cavity (18) (Fig. 1, not shown) supporting an elastomeric inflatable ball 19 by frictional engagement. The cavity (18) may be connected to suction and pressure sources (Fig. 1, not shown) which respectively aid retention and ejection of the ball. The film 24 is placed on the movable platen, and the ball is inflated after application of the film and removal from the press.
Patent GB-1253783-A (GB)
Title: A food product forming apparatus
IPC: B30B11/22
Filed: 1970-05-12
Abstract: 1,253,783. Cutting extruded dough. ITT. INDUSTRIES Inc. 12 May, 1970 [19 May, 1969], No. 22850/70. Heading B5A. Dough impelled by a piston in a heated cylinder 20, is extruded in tubular form radially outwardly from a plurality of brass dies 12, located circumferentially around a steel die 11, at which the dough tubes are cut by wires 23 which are attached between a rotary plate 25, at adjustable tensioning springs 24, and a member 15 which is rotated by gears 16, 19 from a drive 18 which is of variable speed to determine the cut extruded length. It is stated that ten of the dies 12, and twelve of the wires 23 may be provided.
Patent GB-865690-A (GB)
Title: Electrical pulse-counting apparatus
Inventor: HUBBLE ALLAN EDWIN
IPC: H03K21/12
Filed: 1958-07-16
Abstract: 865,690. Electric selective signalling systems. NAPIER & SON Ltd., D. July 10, 1959 [July 16, 1958], No. 22885/58. Class 40 (1). An electric pulse-counting apparatus includes a master counter, means arranged to supply impulses to be counted to the master counter during each of a number of counting intervals of predetermined length, and means arranged between successive pairs of such counting intervals to return the reading on the master counter to zero, and is characterized by a slave counter and transfer means arranged, between successive pairs of such counting intervals, to transfer the reading on the master counter at the end of the preceding time interval to the slave counter. As described, pulses to be counted from a source 15 are applied to a master counter comprising four multi-cathode counting tubes 7, 8, 9, 10, via gate 16 controlled by a timing device 1, 2 so as to be open for every alternate second. During those seconds when the gate is closed, a slave counter 11, 12, 13, 14 identical to the master counter is first reset by a control device 25 and then pulses, at the rate of 100 per second, are applied from the timing device via lead 41, gates 21 and leads 42 to simultaneously reset the master counting tubes and advance the slave counting tubes. During this period the transmission of interdenominational carries is inhibited in the master counter but they are used to close gates 21. Thus in each alternate second when the master counter is not receiving pulses from the source 15 its reading is quickly (i.e. about <SP>1</SP>/ 5  second) transferred to the slave counter which thus appears always to register the count reached by the master counter in the previous second.
Patent GB-224992-A (GB)
Title: Improvements in and relating to spigot and socket joints for wrought metal tubes andin the manufacture thereof
IPC: F16L13/12
Filed: 1923-09-12
Abstract: 224,992. Bromford, Ltd., and Reimann, J. Sept. 12, 1923. Spigot-and-socket joints held by cement, caulking, and the like.-In a spigot-and-socket joint for wrought metal tubes, wherein the tube is formed by rolling the billet in a " pilger " mill, the socket A<2> is formed in an end portion of the tube A which has not been reduced in thickness during manufacture to the same extent as the bodv of the tube. The socket is formed by enlarging the internal and external diameters at the thicker end of the tube and by producing at the same time a right-angled shoulder A<3> at the enlargement against which the spigot end C<2> of the adjacent tube C bears. The walls of the socket may be barrelled as at A<4>, to provide a wide annular space about midway along the socket and a narrower space around its mouth A<5> for the reception of the usual lead ring B and gasket B<2>. The edge of the mouth A<5> of the socket is folded back closely upon itself, preferably externally as at A<6> and before the tube is enlarged to form the socket, while the plain spigot end of the tube C (and the tube A) are also folded as at B to form an end jointing face C<4> - A joint ring &c. (not shown) is provided between the face C<4> and shoulder A<3>.
Patent GB-821186-A (GB)
Title: Improvements in the production of polymers
IPC: C08F2/42
Filed: 1957-07-19
Abstract: Ethylenically unsaturated compounds are polymerized in aqueous media in the presence of water-soluble peroxidic catalysts by processes which comprise interrupting the polymerization for a short time without removal of the monomer or monomers by adding a water-soluble compound containing a free aldehyde group or which yields a free aldehyde group in aqueous media and which does not interfere with the later reinitiation of polymerization, adding substances to and/or removing substances from the reaction media, and reinitiating the polymerization by the addition of a polymerization catalyst. Specified interrupters are formaldehyde, urotropin, acetaldehyde, propionaldehyde, crotonaldehyde, glycol aldehyde, glyoxal and benzaldehyde. Specified unsaturated compounds are vinyl esters, vinyl ethers, styrene, acrylic acid, methyl acrylate, methyl chloracrylate, methyl methacrylate, acrylonitrile, chloracrylonitrile, methacrylonitrile, vinyl chloride and vinylidene chloride.  The water-soluble peroxidic catalyst may be alkali metal, e.g. potassium, and ammonium persulphates or perborates or hydrogen peroxide, optionally together with sodium bisulphite, sulphinic acids, hydrosulphites or sodium thiosulphate, and the polymerization may be reinitiated with the above or other catalysts, e.g. azo-diisobutyronitrile or light.  The pH of the medium may be adjusted, e.g. by adding sulphuric acid, and emulsifiers, e.g. sodium C12-C18 paraffin sulphonates, and polyvinyl pyrrolidone may be present.  The process may be used for the addition of monomers or removal of polymers which may be used in the production of threads, films and shaped articles.  Continuous recovery of polymer may be effected by branching off part of the medium, interrupting the polymerization, separating the polymer and recycling the medium to the polymerization zone.