baber/WOPTO huggingface dataset:
Patent GB-155729-A (GB)
Title: An improved pneumatic wheel-nave
IPC: B60B9/18
Filed: 1920-03-13
Abstract: 155,729. Loutzkoy, B. von. March 13, 1920. Spring wheels with continuous outer rigid ring and pneumatic hubs.-Relates to pneumatic hubs in which radially disposed cylinders and pistons draw in and compress air as the wheel rotates, for instance, pistons a are suspended by links f on a spider c on the hub b and work in cylinders d on the casing e. According to the invention, supplementary air spaces g are provided on the heads of the pistons, openings n in which coact with pins m, thus preventing the heads of the pistons and cylinders from coming into violent contact, and allowing a longer stroke. In modifications, the pistons or cylinders carrying the supplementary air space may be rigid with the hub b, the complementary element being linked to the casing e.
Patent GB-1494521-A (GB)
Title: Microwave ovens
IPC: F24C15/02
Filed: 1975-02-24
Abstract: 1494521 Microwave oven MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 24 Feb 1975 [26 Feb 1974] 7574/75 Heading H5H A microwave oven with a door 2 hinged at 13 to the front edge of the top wall of the casing structure 1 so as to be opened by lifting and closed by downwardly pushing, is characterized by the door 2 being formed with a cavity 5 which co-operates with the cavity 4 formed in the casing structure 1 to define a cubic form heating chamber when closed, by means 7 for locking the door in the closed position, by a microwave seal about the access opening, and by means for maintaining the door stationary in any position between its fully closed and fully open positions. The door construction permits the user to inspect the condition of items being heated in the chamber from above without removing the items from the oven. A pattern of perforations in the triangular sectioned cavity of the door provides an observation window 6. The observation window in the oven door forms the subject of Specification 1,494,522. The weight of the door is counterbalanced by a spring 18 which biases a roller 15 carried by a curved door arm 9 pivoted at 14 to the door 2 against the inclined surface 16a of a support block 16. A stop 17 at the top of inclined surface 16a limits upward movement of door 2. The counterbalance arrangement enables the door to remain in any position intermediate the fully open and closed positions. In a modification (Figs. 5 and 6, not shown) a notch in the inclined surface defines a half open position of the door corresponding to the maximum height of the chamber formed when the door is closed, to prevent damage to door or food item should a food item higher than the maximum height of the chamber be introduced. The door locking means 7 is carried by a spring biased pivoted arm 22 and cooperates with a detent recess 8 in the casing structure 1. The locking means 7 is coupled to the door handle 3 which is pivoted at 21, by an arm 7a secured to the locking means and an extension 3a of the pivoted door handle 3. In Fig. 8 (not shown) the locking means is rigidly secured to the pivoted door handle 3. The door (Fig. 10) is provided with a microwave choke cavity 25 to prevent leakage. The door 2 is stepped at 28 and the casing structure is complementarily stepped at 27. A microwave absorbent ferrite rubber strip 30 embraced by a covering 29 is provided on step 27. A microswitch 31 operated only when the door is fully closed controls microwave energization. In Fig. 11 (not shown) the absorbent ferrite strip is carried by the door adjacent the handle.
Patent GB-175548-A (GB)
Title: Improvements in screw-down cocks
IPC: F16K1/38
Filed: 1921-03-10
Abstract: 175,548. Wingfield, B. R. March 10. 1921. Tapered plug lift valve.s. - A screwdown valve having coaxial lateral inlet and outlet passages has a conical seating with a spherical bottom in which is adapted to seat a conical resilient valve plug having a spherical-shaped end which seats at the bottom of the bore whilst the tapered portion closes the inlet and outlet passages simultaneously.
Patent GB-797674-A (GB)
Title: Improvements in or relating to conveyors and elevators
IPC: B65G19/16
Filed: 1955-03-16
Abstract: 797,674. Endless-belt elevators. HURST, J., and WESTHURST, Ltd. March 9, 1956 [March 16, 1955; April 25, 1955; Jan. 19, 1956], Nos. 7715/55, 11850/55 and 1905/56. Class 78(1). A push-plate type elevator consists of a series of pairs of moulded flights 53, Fig. 3, mounted on a rubber-and-canvas belt 31. Each pair of flights is connected by a pair of rods 52 which are bonded into rubber enlargements 51 formed integrally with the belt. The ends of the rods are received in bosses 54 on the flights. Each flight has a flat body portion which is bounded by stiffening flanges 55, 56, 57. The belt and the flights may be made of polyvinylchloride, stainless steel, fibreglass or an inodorous plastic, e.g. polythene. The elevator works in a sheet-metal casing 11, Fig. 1, and raises material through a duct 13 from a hopper 22 mounted on the outside of the casing to a discharge shoot 45. Material passes from the hopper into the part 12 of the casing through a slot 21. The pulleys 33, around which the belt passes, each consist of two parallel plates with inclined rims which are spaced apart and provided with openings 65, Fig. 5, for the outlet of material trapped between the belt and pulley. The openings in one plate are staggered with respect to those in the other. The shaft 93 of the pulley 33 is mounted in an arm 94 which is pivoted to the casing and can be moved to alter the tension of the belt by screw-and-nut mechanism 95, 96, 97. When in use the casing rests on the ground and is kept stable by a pair of legs 23 provided with protuberances 26 which keep the wheels 25 provided for transport out of engagement with the ground. The spindle 35 of the upper pulley projects through the casing and is connected by gears 34, 36 to the outlet shaft of a gear-box 37. Belts 40, 42 and an intermediate pulley 41 connect the gear-box to an electric motor 43. The pulley 41 has outer conical flanges 71, 72, Fig. 8, fixed to a spindle 73 and a central double conical flange 75 which is slidable along the spindle. The spindle runs in ball bearings in a block 74 which is slidably mounted on a guide-bar 76, Fig. 7, and is engaged by a lead-screw 80. This screw is connected by bevel gears to a shaft 83 carrying an operating handle 46. The relative speeds of the belts 40, 42 are varied by turning the handle.
Patent GB-947446-A (GB)
Title: Improved vulcanizate with a special softener-catalyst combination therein
Inventor: VANDERBILT BYRON MICHAEL
IPC: C08L21/00
Filed: 1962-02-28
Abstract: A composition comprises an unsaturated rubber polymer and as an unsaturated polyester the condensation product of a glycol, or ethylene oxide and an unsaturated organic acid preferably an alpha-beta-unsaturated dicarboxylic acid the mixture having been cured in the presence of a peroxygen compound catalyst.  The rubber polymer may be natural rubber, polybutadiene, polyisoprene, neoprene, the copolymer of butadiene and styrene or acrylonitrile this last also being blended with polyvinylchloride if desired. The unsaturated polyester may be the fumaric ester of alkylene oxide condensate of bisphenol A, or the reaction product of itaconic acid with glycerol, or the reaction product of maleic anhydride and diethylene glycol or the reaction product of diethylfumarate and propylene glycol. Specified peroxides are dicumyl peroxide, ditertiary butylperoxide, ditertiary butyl diperphthalate and cumene hydroperoxide.  U.S.A. Specifications 1,938,730, 1,973,000, 2,688,006 and 2,769,742 are referred to.
Patent GB-350532-A (GB)
Title: Solid carbon dioxide products and methods of and apparatus for making them
IPC: C01B32/55
Filed: 1930-03-11
Abstract: 350,532. Solidifying carbon dioxide. DRY ICE CORPORATION OF AMERICA, 52, Vanderbilt Avenue, New York, U.S.A.- (Assignees of Jones, C. L. ; Pelham, and Small, J. D. ; Douglaston, Long Island, both in New York, U.S.A.) March 11, 1930, No. 7860. Convention date, March 28, 1929. [Class 8 (ii).] Carbon dioxide iceblocks are formed by consolidation from crystals of À01 in. or more in length produced by evaporation near the triple point. Fig. 1 shows a vessel 3 in which evaporation takes place the gas evolved passing through screened'outlets 5 to the jacket, in which pressure is maintained at desired height by a valve 10. The crystals formed may be compressed by a plunger 12 actuated hydraulically and acting through a loosely fitting plate 14 against a plate 15 or the integral bottom of the press cylinder. Evaporation and compression may alternatively be conducted in a single elongated press cylinder.
Patent GB-512155-A (GB)
Title: Improvements in or relating to electric arc converter arrangements
IPC: H02H7/12
Filed: 1938-03-14
Abstract: 512,155. Converting. GENERAL ELECTRIC CO., Ltd., GIBSON, J. W., and THOMPSON, W. G. March 14, 1938, No. 7882. [Class 38 (ii)] [Also in Group XXXVII] In a converter system comprising one or more arc converters 1... 4. associated with a phasemultiplying transformer 5, and having anodes operating in parallel, means are provided whereby in response to fault conditions resulting in unbalance of current in conductors normally carrying balanced direct currents, a circuit - breaker 7 i s opened on the A.C. side. Connections may be made from the cathode leads as shown, or from the anode leads, Fig. 2 (not shown), to a relay sensitive to out-of-balance conditions which relay operates to energize the trip coil of the circuit-breaker which may be of the kind described in Specification 252,514, [Class 38 (v)]. A high speed reverse current circuit-breaker 8 may be provided on the D.C. side, and the circuitbreaker 7 on the A.C. side may be provided with means for opening independently of fault conditions.
Patent GB-906871-A (GB)
Title: Improvements in or relating to loose reed looms
IPC: D03D49/68
Filed: 1959-03-06
Abstract: 906,871. Loose reed looms. RUTI MACHINERY WORKS Ltd. March 6, 1959 [March 11, 1958], No. 7889/59. Class 142 (2). The reed casing 25 of a loose-reed loom is carried by arms 26 and is loaded by a spring 30 anchored to a fixed point 31 such that the spring load is a maximum at back centre and a minimum at the position where a shuttle trapped in the shed would displace the reed. At beatup, the reed is positively clamped by a roller 29 on an arm 28 riding on to the end of a support lever 35 ; the lever has a projection 39 whereby it is caused to accompany the roller 29 as the sley approaches front centre by turning about its pivot 36 against the action of a spring 37. In another form, the arm 28 has a flat shoe instead of a roller 29, and the spring 30 is replaced by a cable attached to the shaft 27 and wound on a drum loaded by a torsion spring. In a third embodiment, the tension spring 30 is replaced by a compression spring acting on the underside of the arm 28, and the shaft 27 is mounted in split bearings which can be tightened to convert the loom into a fastreed loom.
Patent GB-1448679-A (GB)
Title: Extrusion tools
IPC: B21C26/00
Filed: 1973-02-17
Abstract: 1448679 Alloy steel LUCAS ELECTRICAL Ltd 29 Jan 1974 [17 Feb 1973] 7900/73 Heading C7A [Also in Division B3] A roller clutch sleeve is made by extrusion of a billet of steel composed of 0À21% carbon, 1À24% manganese, 0À3% silicon, 0À033% sulphur, 0À06% phosphorus, 0À13% nickel, 0À23% chromium, 0À15% molybdenum, 0À15% copper and the remainder iron.
Patent GB-871767-A (GB)
Title: Improvements in or relating to monoesters of 1:2-ethanediol and 1:2-propanediol
IPC: C08F20/18
Filed: 1959-03-06
Abstract: Mono-esters of 1,2-ethane-diol and/or 1,2-propane-diol with acrylic and/or methacrylic acid are prepared by reacting ethylene oxide and/or propylene oxide with acrylic and/or methacrylic acid at above 30 DEG C. in the presence of ferric chloride, a ferric alcoholate or carboxylate, or chromium tribromide.  A polymerization inhibitor such as hydroquinone monomethyl ether may be present.  In examples the alkylene oxide is led into a mixture of acid and catalyst.
Patent GB-268345-A (GB)
Title: Improvements in hydraulic braking apparatus
IPC: F16J3/02
Filed: 1927-03-22
Abstract: 268,345. Charles, M. March 25, 1926, [Convention date]. Addition to 250,596. Piston-packing substitutes. - Bellows packing for brake pistons is made by securing together steel rings m, of the section, shown, at their inner and outer peripheries by soldering or by autogenous welding. In soldering, the edge of one disc may be turned over and crimped, or a flange on one disc may be bent over to clamp the other disc. Specification 14904/99 is referred to.
Patent GB-559332-A (GB)
Title: Improvements in and relating to printing formes
IPC: B41N1/12
Filed: 1942-06-10
Abstract: 559,332. Printing surfaces. NICHOLSON, J. C., and RUNCOLITE, Ltd. June 10, 1942, No. 7949. [Class 100 (ii)] A printing plate of cellulose acetate is made by moulding or casting it in a matrix prepared by casting or moulding urea-formaldehyde resin against an original. The resin may be in powder form mixed with fillers such as silica or woodflour, or may be in the form of impregnated cardboard or fabric. The cellulose acetate may be in powder flake or sheet form with fillers of woodflour, carbon black, graphite or silica. The matrix or printing plates or both may be reinforced by filiments of cotton, or spun glass, or fine wire or gauze, and may be sprayed on the back with metal, e.g. zinc or aluminium, particles. Reference has been directed by the Comptroller to Specification 505,579.
Patent GB-253249-A (GB)
Title: Apparatus for calculating and scale drawing
IPC: G06G1/14
Filed: 1925-03-26
Abstract: 253,249. Wollaston, H. J. Buchtman-. March 26, 1925. Calculating-apparatus.-An instrument for performing multiplication and division and for use as a protractor, for scale-reading &c., comprises a base member B marked with a triangle a, b, c and carrying a pivoted arm F<1>. The triangle is divided up centesimally, and interior lines are drawn as shown in part. The arm is also similarly divided and may be rigid with another arm f<3> also divided and co-operating with the graduated edge f<2> of the base member. By means of this arm f<3> lines can be drawn, divided and measured, the arm being thickened to bear upon the drawing surface. The arcuate edge d e h may be graduated in degrees and/or radians and straight lines such as d e may be drawn parallel to the base of the triangle and be graduated in functions of the divisions of the base. One Provisional Specification suggests other forms of the instrument wherein a number of triangles having a common vertex may be inscribed on the base member.
Patent GB-177392-A (GB)
Title: Improvements in high tension distributors for electric ignition apparatus
IPC: F02P7/02
Filed: 1921-03-15
Abstract: 177,392. M.-L. Magneto Syndicate, Ltd., and McGowran, A. P. March 15, 1921. Rotary distributors; bases.-Spark-jump rotary distributors are provided with means for producing a flow of air through the distributor casing to remove the products of ionization. In the form shown in Figs. 1 and 2, an axial air-passage B closed at its end by a gauze cover C is formed in the end of the rotor A, and communicates with a number of radial passages D formed in the rotor. While the member A is rotating, the centrifugal action upon the air in the radial passages D causes a continuous flow, air being sucked in at one end of the passage B and expelled through suitably disposed outlet apertures or through the clearance E between the rotor A and the distributor casing. In a modified form, Fig. 3, the air enters through apertures F, passes along passages A, in the rotor A, travels centrifugally outwards as shown by the arrows, and issues at outlets F2 in the casing H. The centrifugal flow is assisted by the blades G on the rotor A, which may co-operate with stationary blades on the inside of the casing H.
Patent GB-903067-A (GB)
Title: Smoking tobacco product
Inventor: PARMELE HARRIS B
IPC: A24B15/28
Filed: 1961-03-06
Abstract: In tobacco treatment according to the parent Specification, calcium carbonate is used as the compound which is converted into calcium oxide.
Patent GB-700548-A (GB)
Title: Mechanism for driving tape- or wire-shaped sound record carriers
Inventor: ROEPKE WILLI
IPC: G11B25/08
Filed: 1952-04-01
Abstract: 700,548. Driving sound film, tape or wire. LOEWE OPTA AKT.-GES. April 1, 1952, No. 8269/52. Class 40 (2). In a driving mechanism for magnetic wire or tape providing a different resistance to rotation of the wind-off reel at normal and at higher, or rewind, speeds, a carrier 5 carrying the reel 3 is, for normal wind-off speed, in frictional contact with larger disc 10 through friction ring 8 carried by plate 7. It may also remain in contact with smaller disc 11 through friction ring 9 also carried by plate 7. At the higher speed ring 8 is disengaged and ring 9 alone engages the smaller disc 11. Ring 8 is disengaged by operating lever 18 so as to raise intermediate disc 14 on which disc 11 is supported. When reel 3 is the driven reel, either for normal or for high-speed operation, disc 10 and plate 7 remain in full frictional contact. Rings 8 and 9 may be felt or rubber and may each be of different material.
Patent GB-526405-A (GB)
Title: Improvements in and relating to the control of electrically driven soot blowers
IPC: F28G15/00
Filed: 1939-03-15
Abstract: 526,405. Master control of several motors. BRITISH THOMSON-HOUSTON CO., Ltd., and JEFFERSON, H. F. March 15, 1939, No. 8314. [Class 38 (iii)] Each of a number of motors driving individual heads of a soot blower is controlled by a multicontact multi-position selector switch comprising contacts impulsed over contact banks, a, b, c, by means of a coil P controlled by a switch LS closed once by a part of the head for each revolution or part of a revolution. The switch LS may be operated by dogs, or screw and nut mechanism depending on the type of head. By selection of the switch connections on banks b and c the number of operations including reversals performed before a contactor M is de-energized to stop the head, and a connection made on bank c to start the succeeding head may be adjusted. After the head has stopped the selector switch is restored. by contacts in bank a and a self-interrupting contact d. Where two heads are to overlap in operation two pairs of reversing switches are provided. Any head may be eliminated from the sequence by a change-over switch carrying the connection from bank c to the following head. Indicators for the several heads and time relays which operate warnings if any head fails to complete its operation within a predetermined maximum time may be provided. The control gear for equipment comprising four heads of the retractable type, and four rotating heads, is described fully with reference to Fig. 8 (not shown).
Patent GB-145884-A (GB)
Title: Improvements in or relating to bracing pieces for built-up girders or like structures
IPC: E04C3/04
Filed: 1919-04-02
Abstract: 145,884. Vickers, Ltd., and McKechnie, Sir J. April 2, 1919. Framework.-Bracing-pieces for use in light built-up girders and like structures, especially those used in aircraft construction, of the kind described in Specification 121,552, are made of channelled or corrugated form, which channels or corrugations extend throughout the length of the piece. The bracing-pieces B are provided with continuous corrugations or channels, and with lugs b<1>, b<2>, as shown, to enable them to be rivetted to the main members and to each other. They are formed by cutting drawn strips into lengths and shaping the edges to the desired contour. The central lugs b<2> may be of other forms, or may be omitted, the rivets in the latter case passing through the centre of the bracing-pieces.
Patent GB-492711-A (GB)
Title: Process for the production of a combined coloured picture and sound record film
IPC: G03C5/14
Filed: 1937-03-22
Abstract: 492,711. Kinematograph colour films bearing sound records. GASPAR, B. March 22, 1937, No. 8337. [Class 98 (ii)] A process of producing kinematographic films comprising colour pictures and a sound-record is characterized by the fact that in the production of dyestuff images in the film the photographic records in the film are converted into silver halide records and that the sound portion of the film is treated with a solution of a reducing agent together with a thickening agent such as starch, the film then being treated with a fixing solution which removes the silver salt from the picture portion of the film, but leaves the sound record undissolved. In the embodiment described the coloured pictures are produced by the dye destruction process. The blackening solution applied to the sound track may be a suitable Metol solution. To this may be added a fogging agent such as thiosinamine or thioacetamide. Wetting-agents may also be added such as lignine sulphonic acids, sulphonated fatty acids, Alborite or the substances known under the Registered Trade Marks " Nekal " and " Invadine." Specification 412,949 is referred to.
Patent GB-297714-A (GB)
Title: Improvements in or relating to three-wire electrical distribution systems
IPC: H02J1/08
Filed: 1927-03-26
Abstract: 297,714. Roberts, J. March 26, 1927. Balancing; installation conductor arrangements; charging batteries. - In a three wire system, such as is employed for constant-potential battery-charging, in which a single generator is connected to the outer wires 6, 7 the potential of the middle wire 8 is controlled by an arrangement of fixed or variable resistances 9, 10 as shown in Fig. 1 or Fig. 2. In a modification the resistance 9 shown in Fig. 2 is discontinuous and the wire 8 may be connected by the switch 12 to taps on either.
Patent GB-880013-A (GB)
Title: Improvements in or relating to anti-friction bearings and methods of, and apparatus for, making and assembling the same
Inventor: HEIM LEWIS RASMUS
IPC: F16C43/04
Filed: 1958-03-14
Abstract: 880,013. Ball bearings. UNIVERSAL BEARING CORPORATION. March 14, 1958, No. 8353/58. Class 12 (1). [Also in Group XXII] A self-aligning ball or roller bearing has its balls or rollers 77 retained in an outer groove of the inner race 78a. The bearing may be a rod-end bearing, Fig. 38, or a shaft bearing, Fig. 41, in which the inner race has an extension 94 with tapped holes 95 for grub screws used to secure the race to the shaft. In another embodiment, Fig. 44 (not shown), the extension 94 is omitted. Concave or convex rollers may be used instead of balls. Reference has been directed by the Comptroller to Specification 849,518.
Patent GB-713808-A (GB)
Title: Improvements in or relating to trouser turn-ups
IPC: A41D1/06
Filed: 1952-04-02
Abstract: 713,808. Trouser turn-ups. HUNT, R. H., and SPIEGEL, M. J. May 26, 1952 [April 2, 1952], No. 8432/52. Class 141 A trouser turn-up is formed by producing in the same piece of material a first turn-up A, A<1> and then a second turn-up B, B<1> adjacent to and overlying the first, the end portion C being stitched at 2 inside the leg 1 of the trousers. The arrangement is such that the second turnup B, B<1> is exposed initially to wear and is then removable or displaceable within the trouser leg when in a worn condition to reveal the first turn-up A, A<1>.
Patent GB-565694-A (GB)
Title: Improvements in cathode ray tubes and in visual indicating systems for apparatus including cathode ray tubes
IPC: H01J29/89
Filed: 1940-05-10
Abstract: 565,694. Colour filters. STANDARD TELEPHONES & CABLES, Ltd., and WOLFSON, H. May 10, 1940, No. 8453. [Class 97 (i)] [Also in Group XL] The fluorescent screen in a cathode ray tube is protected from ultra-violet rays by a light filter which is permeable to visible light and impermeable to light at and beyond the violet end of the spectrum, so that the cathode ray tube may form one element, such as a beaming indicator, of a visual indicating system comprising other elements which are coated with luminescent paint rendered luminous in the dark by ultra-violet light. The filter may be separate from cathode-ray tube and may consist of a medium such as nitro-cellulose, celluloid, cellulose acetate, or a transparent resin, incorporating a small quantity of a yellow dye, such as picric acid or sodium picrate, which gives the required absorption of ultraviolet radiation.