baber/WOPTO huggingface dataset:
Patent GB-1477832-A (GB)
Title: Hydraulic control devices
IPC: B25D9/20
Filed: 1974-07-10
Abstract: 1477832 Fluid regulation; fluid-pressure servomotor systems K FOSTER 10 July 1974 [10 July 1973] 32905/73 Headings G3H and G3P A hydraulic control device for producing repeated pulses of hydraulic pressure for operating hydraulic digging or cutting tools such as hammers, excavating machines and pile drivers, comprises a main valve 6 controlled by a reciprocating pilot valve 1 0 to alternately open and close a hydraulic pressure supply 31 to the control device outlet 9, the movement of the pilot valve being controlled by the differential between the force applied thereto by a control pressure supplied via inlet 36 or by a direct mechanical force, and by the force applied thereto by each pulse via an orifice 26. With the valves 6, 10 in the positions shown following a pressure pulse, the valve 6 communicates the outlet 9 and the orifice 26 with a vent 29. Thus the high-pressure remaining in chamber 39 is gradually vented so that the control pressure acting on end 35 of the valve 10 forces the latter to the left whereby the vent path is closed by piston 24 and a port 37 is opened by piston 23 to permit the supply pressure to pass through a port 27 into annular channels 17, 16. The supply pressure in channel 16 acting on the stepped portion of the valve 6 forces the latter to the left to align ports 21 with ports 34, 37 and permit the supply pressure to flow to the outlet 9 and, via orifice 26, back into the chamber 39. When sufficient pressure has built up in the latter to force the valve 10 to the right against the action of the control force acting on end 35, the channel 16 is isolated from the supply pressure and connected to the vent 29 so that the force applied to the stepped portion of the valve 6 is overcome by the force exerted on the exposed end of shaft 12, whereby the valve 6 returns to the position shown in which it once more connects the outlet 9 and orifice 26 with the vent 29 whereafter the cycle is repeated. The value of the control pressure may be adjusted to vary the duration of each pulse. The orifice 26 may be adjustable to vary the frequency of the pulses.
Patent GB-813436-A (GB)
Title: Apparatus for scoring sheet material
IPC: B26D5/14
Filed: 1955-11-17
Abstract: 813,436. Perforating-apparatus. ST. REGIS PAPER CO. Nov. 17, 1955 [Nov. 30, 1954], No. 32956/55. Class 31 (2). [Also in Groups XVI and XVII] An apparatus for scoring pieces of sheet material, e.g. tubes from which bags are formed, comprises a conveyer 10 for conveying a succession of pieces of sheet material along a predetermined path with a predetermined frequency past a pair of score bars 33, 34 which extend along the direction of movement of the pieces and between which each piece is pressed for scoring, and means for reciprocating the bars toward and away from the path of the pieces and for simultaneously moving the bars in the same direction as the movement of the pieces during the passage of each piece therebetween. As shown, the endless conveyer 10 carries a succession of pieces of sheet material, such as 11 and 12, past the score bars 33 and 34 to score the pieces along a line 28 prior to bending by strips 26, 27. The bar 33 carries a blade 35, Fig. 5, while the bar 34 has a co-operating groove 36, the edge of the blade 35 being rounded to prevent cutting through the material. Alternatively, the score bars may penetrate and weaken the material and may form intermittent cuts through the material separated by portions which are uncut. The bars 33, 34, Fig. 1, are parallel to the direction of movement of the conveyer as indicated by the arrow 21. The bars are reciprocated, in parallel relationship towards the pieces by cranks 37, 38 mounted for rotation on shafts 37a, 38a respectively, and cranks 41, 42 mounted for rotation on shafts 41a and 42a, the shafts carrying the cranks being driven in synchronism by gearing. The conveyer 10 is driven by an electric motor 45 drivingly connected to sprocket wheels 15 and 17 over which gripper-carrying chains 13 and 14 pass ; the chains also pass over sprocket wheels 16 and 18 respectively. In order that the bars may perform a scoring operation on each piece as it passes therebetween, the cranks 37, 38 and 41, 42 are driven at a varying angular speed such that the angular speed increases as the bars approach each other in order that bars may move at the same linear speed as the conveyer during scoring co-operation of the bars. For this purpose, the cranks are driven by the motor 45 through elliptical gearing 48, 49 eccentrically mounted on shafts 50 and 53, Fig. 6 (not shown). Alternatively, a crank and slotted disc may be used for driving the cranks at a varying speed.
Patent GB-1066119-A (GB)
Title: Improvements in and relating to ironing tables and the like
IPC: A47C13/00
Filed: 1965-08-02
Abstract: 1,066,119. Chairs and ironing boards. J. S. BRENNAN. March 30, 1966 [Aug. 2, 1965], No. 32987/65. Headings A4H and A4J. An ironing board is mounted on the back of a tubular metal chair and is formed in two parts 1, 2 which are hinged together. Each part has brackets 3 which are apertured to receive a tube 4 forming a shaft about which both parts pivot. The two parts 1, 2 are held coplanar by a U-shaped slide 5 of rod or tube which slides in loops 6 on the undersurface of the part 2; the ends of the slide engage bevelled plates 7 on the undersurface of the other part 1. The part 1 can be clamped to the shaft 4 by a screw rotated by a lever 10. The shaft 4 is welded to pins (21) on the upper end of the back of the chair. The free end of the part 1 is supported by a U-shaped leg 22 pivoted on three rings 23 secured to the board. A clamping screw rotated by a lever 26 co-operates with one of the rings 23 to lock the leg. The board is covered by a linen layer 28 which is tacked to the part 1 and is secured to a collar 30 extending across the part 2 and attached to an elastic strap 31 extending around the edge of part 2. A metal or asbestos sheet 32 is fixed to the part 2. The chair back is formed by a U-shaped tube 14 pivotally attached by brackets 16 to the frame of the chair. The angle of inclination of the back is adjusted to vary the height of the ironing board and is set by a clamping screw operable by a lever 20 and adapted to grip a metal strap 18 welded to the back. The part 2 of the ironing board can be swung down against stops 21a on the tube 14 to serve as a support for the user's back.
Patent GB-215036-A (GB)
Title: Improvements in or relating to joints for electric cables
IPC: H02G15/196
Filed: 1922-12-04
Abstract: 215,036. Pirelli & Co., and Emanueli, L. Dec. 4, 1922. Cutters. - A hollow tool, having cutting- teeth e and a milled handle f is used to cut away the insulation of cables prior to joining the conductor by a socket.
Patent GB-716597-A (GB)
Title: Leaching of uranium
IPC: C22B60/02
Filed: 1952-12-31
Abstract: Material containing uranium in a valence state less than six is treated with an aqueous solution of alkali metal carbonate at a temperature between 150 and 300 DEG F. in a closed reaction zone, in the presence of gaseous molecular oxygen under a partial pressure of not less than 3 p.s.i., the solution of uranium formed being separated from the residue.  Alkali metal bicarbonate may be added or may be formed by the reaction of the alkali metal carbonate and the components of the ore in the presence of oxygen. Excessive alkali metal bicarbonate formed may be reconverted to the carbonate by the addition of sodium hydroxide or lime.  The function of the sodium bicarbonate is to neutralise any caustic soda produced and thereby to prevent the formation of insoluble sodium uranate, sodium uranyl carbonate only being formed if the amount of caustic soda present is limited.  The oxygen partial pressure is preferably between 10 and 30 p.s.i.  The process is applicable to the treatment of materials such as uraninite thucholite, pitchblende, materials containing uranium metal, uranous oxide and uranium sulphide, in which uranium is present in a valence state less than 6; it is also applicable to materials in which the uranium occurs in association with substances which in order to extract the uranium become oxidized themselves.  A table compares the effects of various leaching periods, various alkali metal carbonate concentrations, oxygen pressures and temperatures.  Included in the term alkali metal carbonate are the carbonates and bicarbonates of lithium, sodium, potassium, rubidium, caesium, and ammonium.
Patent GB-338129-A (GB)
Title: Improved wardrobe fitting
IPC: A47B61/00
Filed: 1929-08-12
Abstract: 338,129. Kel-zo Engineering Co., Ltd., Kelso, R., and McErlane, D. A. Aug. 12, 1929. No Patent granted (Sealing fee not paid). Garment racks. - A pull-out garment rack for a wardrobe &c., consists of a vertical plate 9 slidably mounted on a pair of parallel guide rails 1 and carrying a bar 12 with holes 13 to receive the hooks of garment hangers. The guide rails 1 pass through holes in the plate 9 which is formed with flanges 10 carrying rollers 11 to engage the rails. A U-shaped handle 8 is secured to the plate 9, the upper limb of the U passing through a bracket 3 which connects the front ends of the rails 1 and is secured to the roof of the wardrobe &c. The rear ends of the rails 1 are connected by a bracket 2 also secured to the wardrobe roof. Specifications 201,979, 223,749, and 304,045 are referred to.
Patent GB-1489952-A (GB)
Title: Double wall multitube bags for enclosing the active material of positive plates in electric lead batteries
IPC: H01M4/76
Filed: 1975-08-08
Abstract: 1489952 Woven fabrics for battery plates MECONDOR SpA 8 Aug 1975 [26 March 1975 17 April 1975] 33122/75 Heading H1B [Also in Division D1] A woven material for battery plates comprises a tubular fabric with an inner ply 3, 4 having a weft of glass yarns and a warp of synthetic yarns, there being more wefts per unit area than warps, and an outer ply 1, 2 having a warp of synthetic yarns and a weft of synthetic or glass yarns, the plies being stitched together by at least one weft thread 7 to provide a series of weft wise tubes. The warps may remain on one face as in Fig. 2 or interchange as in Fig. 4 and the fabric may be coated.
Patent GB-926663-A (GB)
Title: Improvements relating to window blinds
Inventor: BRADSHAW KENNETH WILLIAM
IPC: E06B9/24
Filed: 1959-09-30
Abstract: 926,663. Blinds. K. W. BRADSHAW. Sept. 29, 1960 [Sept. 30, 1959], No. 33225/59. Class 20 (3). A blind comprises two or more parallel relatively movable close-spaced sheets 11, 12, e.g. of P.V.C. having alternate transparent stripes 31 and translucent or obscured stripes 30 of light reflecting surfaces such as sprayed metallic coatings or metal foil applied to or incorporated in the sheet during manufacture, the relative movement being such as to bring the obscured stripes of one sheet opposite to the transparent stripes of the other sheet to varying degrees. The stripes may not be of constant width or pitch on either or both sheets. As shown, the widths of stripes 31 are equal as are the stripes 30, the latter being somewhat greater than the former. The two sheets are formed as a continuous sheet with one end secured to a fixed bar 14 and the other end secured to a roller 13 operated by a pulley 36 and cord 35, this latter being under tension by a spring-urged pulley block 38. A roller 27 rests freely in the bight of the material to keep the latter taut. The roller 13 is supported at each end in an open topped U-bearing 18 and the rod 14 is supported in a U-slot 20 in a block 19 which is slid into a bracket 21, Fig. 3. In another embodiment three sheets are suspended from spaced points of a pair of horizontally pivoted levers which provide the differential movement of the sheets.
Patent GB-960881-A (GB)
Title: Improvements in or relating to the preparation and processing of natural and synthetic rubbers
IPC: C08J3/00
Filed: 1960-09-28
Abstract: a polyvinyl alcohol/natural rubber masterbatch comprises 80-20% by weight of natural rubber and 20-80% by weight of polyvinyl alcohol. Polyvinyl alcohol/rubber masterbatches may be prepared by admixing an aqueous solution of polyvinyl alcohol with a latex of natural or synthetic rubber and coprecipitating the mixture to provide a composition containing from more than 20% to 80% by weight of polyvinyl alcohol. The masterbatches may be added to natural or synthetic rubber.  Specifications 803,013 and 880,739 are referred to.
Patent GB-386402-A (GB)
Title: Improvements in or relating to bedsteads and like articles of furniture
IPC: F16B12/56
Filed: 1931-12-02
Abstract: 386,402. Furniture joints. PHILLIPS, Ltd., A. and PARRY, W. J., Eyre Street, Spring Hill, Birmingham. Dec. 2, 1931, No. 33367. [Class 52 (ii).] A furniture joint comprises a flat plate member 4 on the corner post 3, having an upstanding tongue 4a, to engage a hole 5a in the angle-iron side 5, and a laterally projecting tongue 4b to engage a slot 5b. The members 5, 6 may be connected together by a bolt 7 engaging holes 6a, 5c.
Patent GB-729293-A (GB)
Title: Improvements in and relating to electric pulse gating circuits
Inventor: THOMAS DAVID CALDWELL
IPC: H03K17/54
Filed: 1953-12-02
Abstract: 729,293. Pulse circuits. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 2, 1953, No. 33508/53. Class 40 (6). In a circuit for selecting a train of pulses having a frequency which is a sub-multiple of that of an input pulse train the first pulse of the input train initiates a timing period during which period pulses are selected from the train and passed to an output channel, the next pulse in the input train initiating a subsequent period. The Figure shows a pulse selecting or gating circuit comprising a valve V1 connected in a Miller integrator circuit and a gating circuit comprising cathode coupled triodes V2a, V2b to the cathodes of which a train of negativegoing pulses is fed. Initially the control grid of valve V2a is biased to a voltage midway between the upper and lower voltages which the screen grid of valve V1 acquires during the operation of the Miller circuit so that initially the grid of V2a is at a higher voltage than that of V2b and the first negative-going pulse of the input train renders valve V2a conductive to pass a pulse to the output circuit connected to anode load resistor R5. The resultant drop in the voltage of the anode of valve V2a cuts-off valve V1 at its suppressor grid so that the anode voltage rises rapidly with a time constant determined by the values of network C1, R1. When the input pulse and thus that at the suppressor grid of valve V1 ceases, the anode voltage of valve V1 runs down in Miller fashion, Fig. 2 (not shown), at a rate determined by the time constant of network R2, C1 and due to the reduction in screen current the screen grid voltage rises. The grid voltage of valve V2b thus exceeds that of valve V2a so that input pulses applied across the common cathode resistor are diverted from the output circuit across resistor R5. This continues until the anode voltage of valve V1 reaches its original value when the screen voltage falls rapidly, valve V2a conducts and input pulses are passed again to the output, the cycle then repeating. In a modification, Fig. 3 (not shown), the Miller capacitor of the timing valve V1 is connected between anode and control grid of the Miller valve via a cathode follower so that the initial rise in anode voltage of the Miller valve is expedited.
Patent GB-995891-A (GB)
Title: Improvements in or relating to offset printing machines
Inventor: SCHUMANN HEINZ
IPC: B41F13/08
Filed: 1962-08-31
Abstract: 995,891. Printing apparatus. DRUCKMASCHINENWERK PLANETA VEB. Aug. 31, 1962, No. 33508/62. Heading B6C. In the offset cylinder 2, Fig. 1, of an offset rotary printing machine that edge, 12A, Fig. 2, which first comes into contact with the impression cylinder 1 at the commencement of a printing operation is set back from the periphery of the cylinder towards its axis by an amount S equal to the distance which the cylinders move apart during the printing operation due to the play in the bearings 15, 16, 17, 18, of the offset and impression cylinders. The surface area of the offset cylinder from said leading edge 12A to a cylindrical generatrix 13A of the cylinder where the cylinders no longer move apart, is formed as a curved run-on surface which merges into the outer periphery 10 of the offset cylinder. The run-on surface, which may be parabolic, is so curved that the pressure between the cylinders is the same at any position when the curve is in contact with the impression cylinder as it is at any other time during the printing operation.
Patent GB-447886-A (GB)
Title: Resilient steel disc for multiple-disc clutches
IPC: F16D13/69
Filed: 1935-12-04
Abstract: 447,886. Friction clutches. ORTLING- HAUS SOHNE, O., [Firm of], 77A, Honsbergerstrasse, Remscheid, Germany. Dec. 4, 1935, No. 33602. Convention date, Dec. 12, 1934. [Class 80 (ii)] In a multi-disc clutch, each inner disc a, formed of resilient steel, is slightly dished and is also bent circumferentially, so that, in the disengaged condition of the clutch, the disc a has only point contact with the adjacent outer plane discs b, b'. Alternatively, the inner discs may be plane, the outer discs being dished and bent. The dished disc a shown in Fig. 2, is cylindrically bent, while the dished disc a shown in Fig. 5 is circumferentially undulated.
Patent GB-430641-A (GB)
Title: Trigger mechanism for automatic firearms
IPC: F41A19/33
Filed: 1934-11-22
Abstract: 430,641. Automatic guns. STACK, 1. I., 18, Vartavagen, and LINDFORS, A. T., 5, Grevturegatan, both in Stockholm. Nov. 22, 1934, No. 33613. Convention date, Nov. 22, 1933. [Classes 92 (ii) and 119] A single trigger for single-shot and continuous fire is in the form of a two-armed lever the finger-piece 20 of which is pulled to rock the trigger about a pivot 23 for singleshot fire the finger-piece 21 being pulled to rock the trigger about a pivot 22 for continuous fire. The trigger actuates the sear 25 through a trigger-pawl 32 which remains in engagement with the sear when the trigger moves about the pivot 22 but is tripped by the contact of its arm 33 with the pin 22 when the trigger moves about the pivot 23. Slots 24 permit of the independent movements of the trigger. A single spring 34 controls the trigger, sear, and trigger-pawl.
Patent GB-943864-A (GB)
Title: Mounting for electrical resistance elements and method for preparing the same
IPC: C04B28/26
Filed: 1961-09-20
Abstract: 943,864. Insulating millboards. JOHNSMANVILLE CORPORATION. Sept. 20,1961 [Oct. 12, 1960], No. 33623/61. Heading D1P. A millboard comprising 40-60% of asbestos, 35-45% of diatomaceous earth, and 7. 5-12. 5% of sodium and/or potassium silicate is impregnated with 15-40% of an aqueous solution of aluminium phosphate and dried by evaporation of water from the end faces only. During drying, the front and back surfaces of the millboard are covered with a water-impermeable material. The millboard is cut to the desired shape (e.g. as shown in Fig. 1) before or after impregnation but before drying. The silicate is activated after drying by heating the millboard to 170-400F. at a relative humidity of 80-100% for 4-8 hrs.
Patent GB-1173217-A (GB)
Title: Method for the Manufacture of Aliphatic Alcohols
Inventor: FRANCOIS MARIE-THERESE GEORGET
IPC: C07C29/147
Filed: 1967-07-21
Abstract: 1,173,217. Aliphatic alcohols. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. 21 July, 1967 [22 July, 1966], No. 33668/67. Heading C2C. A process for the manufacture of aliphatic alcohols from fatty substances of animal and vegetable origin consisting substantially of a water-containing mixture of glycerides and fatty acids comprises: (i) esterifying by heating the mixture with a butanol in the presence of an esterification catalyst at boiling point until substantially all water is eliminated therefrom; (ii) reducing the resulting esters with sodium to obtain a mixture comprising sodium butylate, glycerol, aliphatic alcohols and a minor quantity of soaps; (iii) heating said mixture with water to hydrolyse said sodium butylate to sodium hydroxide and a butanol; and (iv) washing said hydrolysed mixture to eliminate the sodium hydroxide, soaps and glycerol therefrom and obtain an aqueous butanolic solution of aliphatic alcohols. The butanol used is preferably n-butanol. When the starting materials contain iron as an impurity, this may be substantially eliminated by washing the esterified mixture before removing the water therefrom. The esterification catalyst is preferably sulphuric acid and examples use acid palm oil, knacker's tallow or olive oil cake as fatty substances.
Patent GB-998650-A (GB)
Title: Mechanism for assembling nut members and washers
IPC: B23P19/00
Filed: 1963-08-26
Abstract: 998,650. Washers. ILLINOIS TOOL WORKS Inc. Aug. 26, 1963 [Aug. 27, 1962], No. 33746/63. Heading F2H. [Also in Divivision B8] Washers 14 are positioned (see Division B8) in a machine, for assembly with screw blanks 16.
Patent GB-1090135-A (GB)
Title: Power transmission apparatus
IPC: F16H13/00
Filed: 1963-08-27
Abstract: 1,090,135. Electric motors. R. E. WINN. Aug. 25, 1964 [Aug. 27, 1963], No. 33953/63. Heading H2A. [Also in Division F2] The armature spindle 4 of an electric motor drives and is supported at one or both ends, by resilient planetary (or countershaft) rollers 10 engaging a fixed (or driven) internal reaction annulus 11 and mounted on an output (or stationary) carrier 5 driving one or two vehicle wheels, and either spindle end, the rollers or the annulus 11 may be radially resilient to provide frictional driving contact of the elements. The rollers 10 have flexible metal tyres 9 on rubber wheels 10 bushed at 8 to the planet carrier spindles 7. In a modification, Fig. 4 (not shown), the motor spindle 4 is supported by fixed-axes rollers 19 driving an output annulus 20.
Patent GB-445126-A (GB)
Title: Improved method and means for mounting ophthalmic lenses
IPC: G02C1/02
Filed: 1934-11-24
Abstract: 445,126. Locking bolts. KIRK, P., and KIRK, S. M., (trading as KIRK BROS.), 34, Gray's Inn Road, London. Nov. 24, 1934, Nos. 33854/34 and 7311/35. [Class 89 (i)] [See also Group XX] A joint for ophthalmic fittings comprises a fastening screw 9 threaded at 11 for engagement with a part of the fitting 7 and having at one end a head 10 to bear on one face of the fitting, the other end being drilled axially at 12 so that it may be splayed out as shown. The axial bore may be threaded to receive a locking screw. Thickening plates countersunk to receive the heads of the fastening and locking screws respectively may be placed on either side of the fitting 6, 7.
Patent GB-875858-A (GB)
Title: Polishing composition
IPC: C09G1/08
Filed: 1959-10-08
Abstract: A composition having application as a floor polish comprises 4%-8% of polyethylene wax, 0,5%-2% of oxidized microcrystalline wax, 12%-22% of paraffin wax, from 70%-81% of a hydrocarbon solvent, e.g. oleum spirits, and optionally oil-soluble dyes.
Patent GB-789512-A (GB)
Title: Improvements in and relating to automatically adjustable bead breakers
IPC: B60C25/132
Filed: 1954-06-21
Abstract: 789,512. Tyre bead breakers. ATHMANN, C. C. June 21, 1954, No. 34126/54. Divided out of 789,511. Class 144 (1). In an apparatus for breaking the tyre beads loose from a wheel rim, opposite sides of the tyre are forced towards each other by two oppositely disposed bead breaker shoes 35, 41 which are movable towards or away from each other, and relatively to a wheel support 14, at least one of the breaker shoes being swingably mounted and provided with a rim-engaging abutment to limit the bead-breaking movement. One of the breaker shoes 35 is operatively associated with a wheel centring and securing mechanism 19, 20, 22, 26, on the support 14, so that it is automatically properly positioned to engage the tyre side wall, irrespective of the size of the wheel, on operation of said wheel-securing mechanism. The particular apparatus described is the same as that described in Specification 789,511.