baber/WOPTO huggingface dataset:
Patent GB-168381-A (GB)
Title: Improvements in internal combustion engines
IPC: F02P5/07
Filed: 1920-05-27
Abstract: 168,381. Dodson, E. May 27, 1920. Timing.-The advance of the ignition is limited in accordance with the position of the mixture throttle valve B<2>, by a cam C connected with the throttle and forming a stop for the timing-mechanism. The cam C is engaged by the free end of a lever D, which is pivoted at D<2>, and connected by a link D<4> with the contact-breaker A<2>. The lever D is held by a spring D' against a stop D<8> with the ignition fully retarded, and is raised against the pull of the spring by a bellows E connected bv a tube E<5> with the induction pipe at a point between the throttle and the engine. Increased engine speed raises the lever D and advances the ignition; whilst the position of the throttle B<2> and cam C determines the extent to which the ignition can be advanced. The connection between the bellows and the lever D may include a differential pulley, of which one member may be eccentric, whereby the bellows acts on the lever with a greater mechanical advantage when more fully extended; the eccentric portion of the pulley may be adjustable both as to its angular position and its eccentricity, and may be set so as to compensate to the best advantage for the varying effect of the spring D' and for the peculiar variations of the depression in the induction system. The pulley may be replaced by a fusee, or by link-work. The cam C may have an extension which engages the lever D when the throttle is completely closed so as to advance the ignition suitably for starting. A relief valve is provided at E<12> or in the pipe E<5> connecting the bellows with the induction pipe, and this pipe may be fitted with a gauze screen to prevent the passage of flame from the induction pipe, and if desired with a non-return valve and small by-pass to damp oscillations of pressure due to explosion. The bellows may have a snifting valve to prevent the pressure falling below a desired limit when the throttle is closed.
Patent GB-1358122-A (GB)
Title: Apparatus for unloading
IPC: B60P1/64
Filed: 1972-03-28
Abstract: 1358122 Unloading containers NORBAAB 28 March 1972 [1 April 1971] 14526/72 Heading B8Q When a refuse vehicle body 5 has been filled by a compacting device 6, Fig. 1, it is moved away from the compactor by a ram 8 and unloaded by support frames 4. The latter, Fig. 3, are pivoted to the vehicle chassis 3 at 9 and support pulleys 15, 16 over which a wire 13 passes from a fixed point 14 on the chassis to an anchorage 17 on the container. When the supports are pivoted clockwise by rams 10 to a vertical position the wires are paid out over the pulleys and the container is lowered to the ground as shown. Containers are loaded by reversing the procedure. Pulley 15 may be omitted, in which case the pulley 16 and its axle are spring-loaded to take up the slack in the wire 13.
Patent GB-568646-A (GB)
Title: Improvements in and relating to driving belts
IPC: F16G5/16
Filed: 1943-09-06
Abstract: 568,646. Driving belts. DICK, Ltd., R. & J., and McKENZIE, J. D. Sept. 6, 1943, No. 14552. [Class 80 (i)] Driving belts for V-groove pulleys comprise a length of canvas a impregnated with balata or guttapercha and folded to form a band to the inner face of which is secured a series of gripping elements b of similar material, folded to give the desired thickness and width and spaced apart. Each element has, near the ends thereof, an elongated hole c. Superimposed on such series is a second series d similar to the first and slightly narrower, each element d bearing on two adjacent elements b and also having two elongated holes e. Rivets f pass through circular holes in the band a and through the elongated holes c, e. When rounding a pulley, the rivets move along the slots, thus permitting of great flexibility. The series of gripping elements may be secured to opposite faces of the band.
Patent GB-496219-A (GB)
Title: Improvements in, or relating to, spring suspensions for the fork-mounted wheels of pedal-cycles, motor-cycles and other vehicles
IPC: B62K25/16
Filed: 1937-05-26
Abstract: 496,219. Spring forks for cycles &c. MACBETH, C. May 26, 1937, Nos. 14569/37 and 14444/38. [Class 136 (iii)] In spring suspensions for the forkmounted wheels of motor and other cycles &c., of the type comprising one or more rubber blocks vulcanized to metal plates and adapted to act in torsion, one of the plates of each torsion spring is anchored to the lower end of the fork, and the other plate is connected by an arm or link to the wheel axle. In the form shown in Figs. 1 and 2, a torsion spring a, which may be of the kind described in Specifications 363,039, [Group XXXII], and 449,319 is applied to the end of each limb of the fork g, and comprises a rubber block b vulcanized to inner and outer plates c, d, the outer plate d being formed as a flange on a spindle e, which is rigidly attached by a cotter-pin f to a bracket g<1> brazed on the end of the fork limb. The inner plate c is notched at h for engagement with a link i secured to the wheel spindle j. Each link i is bifurcated and chambered at its rear end to receive bearings m around the spindle e on each side of the fork bracket g<1>. The outer plate n of the brake drum o is rigidly secured to one of the links by the engagement of a boss n<1> on the link with a hole in an extension of the plate n, which has a lug t for anchoring. the cable p for operating the brake shoes. Each link i is formed with two projections s adapted to act as stops on excessive oscillations, by engaging a rubber sleeve t<1>, or rubber blocks, on the lower end of the fork limb. A shield 17 protects each rubber unit. Modifications are described, in one of which the links i are combined with upper links to form a parallelogrammic linkage. The construction may be such as to permit, on removal of the cotter-pins f, the ready separation of the wheel spindle and link unit from the wheel and brake assembly to facilitate removal of the latter from the fork. The suspension may be applied to rear wheels.
Patent GB-750668-A (GB)
Title: Improvements in or relating to driving belts for use with v-grooved pulleys
IPC: F16G5/10
Filed: 1954-05-18
Abstract: 750,668. Driving belts. LAVER, L. May 18, 1954, No. 14588/54. Class 80(1) An endless driving belt of trapezoidal cross-section for engagement with V- pulleys comprises a core of rubber or like material in which is embedded at least one flat strip 12 of flexible metal whose ends overlap and have a series of aligned holes which are filled by the core material to prevent relative movement. An outer wrapping 11 is provided comprising layers of canvas impregnated with the core material.
Patent GB-312790-A (GB)
Title: Improvements in and relating to the manufacture of wheels for vehicles
IPC: B21D53/26
Filed: 1928-05-18
Abstract: 312,790. Dunlop Rubber Co., Ltd., and Sharp, G. E. May 18, 1928. Wheels. - Centres for wheels of the artillery type have the bushes which secure the parts to gether inserted and eyeleted in one operation. The assemblage forming the wheel centre 2 is located on a lower press platen 4 by a spigot 1 or according to the Provisional Specification by a series of L-shaped stops. Spring plungers 9<b> receive the bushes 8 which are driven into place by corresponding tools 9<a> carried by the moving platen. At the end of the stroke the centres are flattened and the ends of the bushes expanded.
Patent GB-738275-A (GB)
Title: Improvements in or relating to the treatment of vermiculite
IPC: C04B20/10
Filed: 1952-06-11
Abstract: The water absorbing capacity of exfoliated vermiculite is reduced by treatment with a wax.  Specified waxes are beeswax, tallow, ceresine, spermaceti and paraffin wax.  The wax is dissolved in a solvent, applied to the vermiculite, and the solvent removed.  A dye can also be present, and the waxed vermiculite is a suitable aggregate in concrete or plaster.
Patent GB-1325764-A (GB)
Title: Fluid velocity indicators
IPC: G01P5/14
Filed: 1970-07-08
Abstract: 1325764 Measuring fluid flow BECTON DICKINSON & CO 8 July 1970 [8 July 1969] 14777/73 Divided out of 1325763 Heading G1R An air velocity indicator 29, particularly for indicating the velocity of air entering a cabinet type work bench (see Division F4), comprises a transparent or translucent body 47 having a vertical frustoconical bore 75 containing a movable ball shaped float 84. An inlet tube 49, having one end closed at 86 and apertures 88 positioned to face and receive a flow of fluid from fluid flowing through a conduit 48, is connected to the lower end of the vertical bore 75. Fluid leaves the upper end of the bore through an outlet tube 50 which also extends into conduit 48, is closed at one end 87 and has outlet apertures 89 facing the downstream direction of fluid flow through the conduit 48. Conveniently a calibrated scale (not shown) is associated with the body 47 to provide visual reference to the position of the movable float 84.
Patent GB-125870-A (GB)
Title: Improvements in Heel Grips for Boots and Shoes.
Inventor: WELLS JAMES THOMAS
IPC: A43B23/28
Filed: 1918-09-11
Abstract: 125,870. Wells, J. T. Sept. 11, 1918. Heel friction pads.-A device to prevent a shoe from slipping up and down at the heel comprises a foundation b, Fig. 1, of canvas &c. and a facing a of velveteen &c., both cut to a semi-circular shape, with a cord c of india-rubber &c. encased in the edge of the device as shown. The founda. tion b is extended to form flaps c, which are cemented or otherwise secured to the heel seat and may be covered by the shoe sock. In a modified construction, Fig. 6, the cord is dispensed with and the edge of the velveteen &c. folded upon itself and secured by stitching.
Patent GB-1254517-A (GB)
Title: A dismantleable cylinder for reciprocating piston machines
IPC: F02F1/08
Filed: 1970-03-26
Abstract: 1,254,517. Cylinders. MASCHINENFABRIK AUGSBERG-NURNBERG A.G. ZWEIDNIEDERLASSUNG NURNBERG. 26 March, 1970 [27 March, 1969], No. 14843/70. Heading F2T. [Also in Division F1] A cylinder comprises a barrel 1, Fig. 3, having a sawtooth screw-thread engaged by a threaded ring cast in situ in a cylinder head, the barrel having a neck portion 8 extending upwardly from the sawtooth profile with an upper end face in sealing engagement with a sealing face of the threaded ring and also engaging a bore surface 9 to prevent radial movement, spaces being provided in the bore surface between the ring and the neck portion. A cast iron liner 4  may be fitted. The cylinder may be of steel, the cylinder head of light alloy and the threaded ring of bronze alloy. An elastic seal may be fitted in space 14. Spaces 13 and 14 may be filled with a metal or elastic sealing agent through  aperture 22 and grooves 21.
Patent GB-825787-A (GB)
Title: Improvements in or relating to devices for grinding teeth in a patient's mouth
IPC: A61C3/06
Filed: 1957-05-10
Abstract: 825,787. Dental engines. LOBETH, P. C. May 10, 1957 [May 11, 1956], No. 14891/57. Class 81 (2). Tooth grinding apparatus comprises a driving shaft integral with a toothed sprocket on which is mounted an endless abrasive band, the length of which is greater than the circumference of the sprocket, and an independent member for guiding the band round a tooth. The shaft 2 of the sprocket 1, which is made of steel or synthetic plastic, is mounted for rotation in a driven hand tool. The endless band 5 comprising a carrier of paper, fabric, nylon or steel on the inside of which are abrasive particles e.g. glass or diamond, has holes 6 which fit over teeth on the sprocket 1. In use the sprocket 1 and the part of the band 5 on the sprocket is covered by a mucosa protector 12 which is in the form of a hollow cylinder, part of which is cut away, and has a socket for mounting on the sprocket shaft 2. The band 5 is long enough to surround a tooth as well as the sprocket 1 and in use is stretched by pulling the sprocket away from the tooth undergoing treatment. A metal or synthetic plastic guide 7 comprises a semicircular part with a flanged edge 8 which fits on a dental mirror and two arms 9 spaced apart by a distance slightly greater than the width of the band 5. In use the arms 9 are held against the tooth and the band 5 moves between them. The sprocket 1 may be cylindrical or frusto conical the band 5 being shaped correspondingly.
Patent GB-971381-A (GB)
Title: Dry cleaning system
IPC: D06F43/04
Filed: 1961-04-25
Abstract: 971,381. Dry cleaning apparatus. J. D. ROBBINS, and R. A. CURTIS. April 25, 1961, No. 14969/61. Heading D1A. In a dry-cleaning system comprising a plurality of machines 1, solvent from a storage tank 10 is passed through a filter 50 to a manifold 22 which is connectable to each of the machines 1. During operation a pump 11 pumps solvent from the tank 10 through the filter 50 and manifold 22 to the inlet 4 of one or more machines 1, solvent being returned to the tank 10 through an overflow arrangement and conduit 6. After a predetermined time, a valve 34 is closed and a valve 32 opened and solvent is circulated through the filter to maintain it in good condition. A valve 36 is simultaneously opened to drain the machine 1. The machines 1 may be coin operated and are separated from the filtering and storage means by a partition 3. Specifications 971, 382 and 971, 383 are referred to.
Patent GB-612204-A (GB)
Title: Improvements in and relating to cooking utensils
IPC: A47J45/07
Filed: 1946-05-17
Abstract: 612,204. Cooking utensils. HOSKEN, S. T. May 17, 1946, No. 15026. [Class 66] The handle d of a saucepan, &c., a is detachably held in a socket b fixed to or integral with the side of the utensil a, slot c closed at the top fitting a plate e on the end of the handle. A spring clip f prevents the handle falling out.
Patent GB-701629-A (GB)
Title: Improvements in lightning arresters
IPC: H01T4/20
Filed: 1952-06-16
Abstract: 701,629. Protective arrangements. ALMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. June 16, 1952 [June 21, 1951], No. 15062/52. Class 38 (4) . A lightning arrester comprises two or more stacks arranged side by side and each consisting of number of sections formed of voltagedependent resistance material 3 and spark gaps 4, the sections being separated by insulating plates 5 which are provided with conduc. tive material on their two surfaces to form condensers, and the conductive surfaces of the several plates being so joined by separate connectors 6 that, on the one hand all the sections are connected into a continuous chain passing from stack to stack and, on the other hand, the condensers are connected together into one or more continuous chains in parallel with the firstnamed chain. The several stacks may be surrounded by a common insulator 1 having metal end plates 2 which serve as the terminals of the arrester. A practical embodiment of the arrangement shown in Fig. 1 is described, as also is an arrangement comprising three stacks.
Patent GB-749950-A (GB)
Title: Improvements in or relating to duplex broaching machines
IPC: B23D37/06
Filed: 1954-05-24
Abstract: 749,950. Broaching. LAPOINTE MACHINE TOOL CO., Ltd., (Lapointe Machine Tool Co.). May 24, 1954, No. 15251/54. Class 83 (3). A duplex broaching-machine comprises two parallel tool-slides 60 each positively connected by gearing to a reversible driving-motor M. The motor M drives oppositely-rotating bevelgears connected by gears 40, 41 to herring-bone gears 46, 48, the latter meshing with racks on the rear sides of the slides 60. Automatic means may stop the machine at the end of each stroke. The work-pieces are mounted on holders 12 each being moved to-and-from working position by hydraulic means 15, a lever 17, 18 and a link 19.
Patent GB-988421-A (GB)
Title: Improvements in or relating to the false twisting of yarn
Inventor: WILKINSON FRANK
IPC: D02G1/08
Filed: 1960-04-30
Abstract: 988,421. Finishing yarns; twist tubes. TOWL & CURSLEY (1931) Ltd. July 31, 1961 [April 30, 1960], No. 15252/60. Headings DID and D1F. Monofilament or multifilament yarn is rendered "twist lively" or is crimped by passing it through a heated zone, then false-twisting by running the yarn transversely between opposed surfaces of overlapping discs which rotate on parallel axes. The discs are driven in opposite directions and the surfaces frictionally engage the yarn thereby to roll or rotate it about its longitudinal axis. As shown, each yarn withdrawn from a package 3 passes through a tensioner 6 and is advanced by discs which grip the yarn between their opposed faces and are driven through cones and adjustable belt 13, Fig. 3 (not shown). The yarn then passes through a heating zone 5 wherein it runs in electrically heated, temperature controlled, grooved elements 7 and into and from contact with which the yarn is lowered and raised by a rod 17 which is controlled on its downward movement only by an escapement device acting as a brake, Fig. 5 (not shown) and is electromagnetically linked with the starter of the main drive motor 16. The yarn leaving the heated zone is false-twisted by a device comprising rigid and manually displaceable flexed members 37 and 38 having opposed yarn engaging surfaces provided by discs of plastic material to and from which the yarn. is led by tubular guides, Figs. 7-10 (not shown). The positively advanced yarn is finally taken-up under tension on a winding core. A multiple form of the apparatus, Fig. 1 (not shown) may be incorporated in a warp beaming machine.
Patent GB-1484414-A (GB)
Title: Adjusting device for variable-focus lenses
IPC: G02B7/28
Filed: 1975-04-14
Abstract: 1484414 Variable focus lens mount; automatic control JOS SCHNEIDER & CO OPTISCHE WERKE 14 April 1975 [28 May 1974] 15279/75 Headings G3N and G2J An adjusting device, for variable focus lenses to control the motion for altering the focal length and maintain a constant back focus of axially slidable optical systems supported in guides, has a transducer, sensing data on a digitally encoded track, associated with a first optical system and a motor for the automatic control of a further optical system responsive to the output of the transducer. As shown, a front optical system 1 of a variable focus lens is positioned by a ball-spindle 11 driven by a stepping motor 13, or manually, to a setting corresponding to a desired focal length. A photo-electric transducer 3, with a slot 4, traverses a fixed glass scale 9 bearing transverse meshings 10. Pulses produced by the transducer as the slot passes across a meshing are fed through an amplifier 7 to an electronic system of a stepping motor 8 whereby a rear optical system of the lens is positioned through a ball-spindle 12 with the movement of the system 1 so as to maintain the back-focus of the lens constant. In a modification, the glass scale is replaced by a metal scale and the transducer senses the scale by reflection. It is stated that a metal scale could be sensed  inductively. In an alternative arrangement, a digitally coded punched tape is driven from the first optical system through gearing and is read to derive pulses to be fed to the stepping motor of the further optical system.
Patent GB-1254926-A (GB)
Title: Improvements in means for holding articles on smooth panels by magnetic force
Inventor: DOPPLER ROLF
IPC: A47G1/17
Filed: 1969-03-24
Abstract: 1,254,926. Magnetic fastenings. R. DOPPLER. 24 March, 1969 [3 April, 1968], No. 15281/69. Heading E2A. [Also in Division H1] An article is mounted on a smooth panel by means of a device comprising a foil of soft or permanent magnetic material provided on one face with a self adhesive coating for sticking the foil to the panel and a holder at least part of which is of soft or permanent magnetic material which when placed on the foil is retained by magnetic attraction. The foil may be of soft iron coated with varnish and the adhesive coating may be covered with a strippable protective layer. The foil may be produced in a long length which is wound on a spool from which pieces of the desired length may be removed as required. The foil may also be of permanent magnet material, e.g. iron dust in a plastics binder. The holder may be a permanent magnet which may be placed on a sheet of paper lying over the foil to retain the sheet in place, Fig. 3 (not shown). Alternatively the holder may be in the form of a permanent magnet shaped to form a hook Fig. 4 (not shown) or may be a permanent magnet built into an article to be retained on the foil.
Patent GB-850713-A (GB)
Title: Improvements in or relating to a penetrating needle for injecting or withdrawing fluid
IPC: A61M5/32
Filed: 1958-05-13
Abstract: 850,713. Surgical syringes. STRAUSS, W.A., and CHAPPLE, C.C. May 13, 1958, No. 15337/58. Class 81(2) A penetrating needle comprises a flexible sleeve through which extends a supporting rod, a point being formed at one end by the rod and the sleeve. A distensible sleeve 4 is threaded on the neck of a flexible container or a fluid conduit and is made of polyethylene, polystyrene, latex or synthetic rubber. A rod 12 is positioned in the bore 10 of the sleeve and seals it for its entire length. Ears 14 on the rod extend into a recess near the threaded end of the sleeve. On application of pressure to the container or conduit, fluid distends the sleeve and is discharged between the sleeve and rod. In another construction a flexible reservoir 54 (Fig. 2) comprising two joined truncated cases, is integral with a distensible sleeve 56 having a supporting rod 48, one end of which projects from the sleeve to form with it a hypodermic needle. The other end of the rod forms a loop 60 in the reservoir and is bowed into the reservoir near its point of entry. The reservoir may be of tapered form and the rod may extend through the reservoir and have a loop for withdrawing it from the sleeve before discharge of fluid from the reservoir. The distensible sleeve 120 (Fig. 9) may have a flared end 126 for connecting to a syringe 128, the rod 122 being bent into a loop 132 which is partially embedded in the flared end 126 and engages a groove in the syringe. Alternatively, the rod may be withdrawn after insertion of the needle in the body, the syringe or a fluid conduit being connected to the flared end. The forward ends of the sleeve and the rod may be of reduced diameter or the rearward portion of the sleeve bore may be of greater diameter than the rod.
Patent GB-966291-A (GB)
Title: Improvements in and relating to electrostatic spray coating systems
Inventor: JUVINALL JAMES WILLIAM
IPC: B05B5/08
Filed: 1959-05-05
Abstract: 966,291. Electrostatic spray-coating. RANSBURG ELECTRO-COATING CORPORATION. Aug. 5, 1960 [May 5, 1959], No. 15355/59. Heading B2B. An apparatus for electrostatically coating articles comprises a conveyer 10 for moving the articles 11 in a path past mechanical atomizing means 14, means (e.g. a high-voltage source 30) for charging the spray particles and establishing a high voltage electrostatic field between the atomizing means 14 and the articles 11, and means for moving the atomizing means so as repeatedly to change the general direction of projection of the spray so that the spray zone is moved in a direction that extends along the article path, thereby to change the volume of atmosphere into which the spray is projected, at a rate and extent such as to increase the efficiency of deposition of the coating material. As shown, the spray nozzle 15, to which coating material is supplied from a supply 26 under pressure sufficient to cause atomization, is rotated continuously by a motor 18. In another embodiment, a compressed air spray gun is used, and is oscillated by a reciprocable piston operating a rack which engages a gear affixed about the column on which the spray gun is mounted. Means are provided for triggering the gun at the ends of its traverse.