baber/WOPTO huggingface dataset:
Patent GB-754671-A (GB)
Title: Mechanical contact current converter with contacts oscillating in synchronism with the frequency of the alternating current
IPC: H01H51/34
Filed: 1954-04-14
Abstract: 754,671. Switch cases. AKT.-GES. BROWN, BOVERIE & CIE. April 14, 1954 [April 16, 1953], No, 11036/54. Class 38(5) A mechanical contact converter with periodically operating contacts is located inside a casing a mounted on resilient supports such as springs h. there being a second outer casing c lined with sound absorbing material d and mounted on a resilient base e. Any holes in case c through which operating mechanism passes are closed with flexible sleeve-like seals. The converter then operates sufficiently silently for it to be situated where people work
Patent GB-829850-A (GB)
Title: Improvements in rubber compounding
IPC: C08J3/215
Filed: 1958-04-08
Abstract: In making rubber compounded with carbon black by agglutinating carbon black with rubber in latex form and coagulating the mixture, the carbon black is dispersed in, and thoroughly wetted by, the latex free from rubber antioxidant.  Such antioxidant may be incorporated, e.g. as a dispersion in water or in a rubber distender, with the latex-carbon black mixture before coagulating. Latices of natural rubber and GR-S, the antioxidants N-phenyl-2-and aldol-1-naphthylamine, acetaldehyde-aniline, diarylamines, ketone-arylamine products, acetone-diphenylamine products and alkylated diphenylamines, and the distenders paraffinic and aromatic petroleum oil and coal tar fractions, resins, tars, pitches and castor oil, are referred to. Specification 705,344 and 765,486 are referred to.
Patent GB-550086-A (GB)
Title: Means for centering or otherwise operating upon the ends of cranks and other shafts and like work
IPC: B23B49/04
Filed: 1941-08-30
Abstract: 550,086. Drilling-machines. THOMAS, E. P. E. Aug. 30, 1941, No. 11093. [Class 83 (iii)] An attachment described as for centering crankshafts in an engine lathe is stated to be applicable for use in any machine having two opposed spindles, (headstock or tailstock), or the equivalents thereof and to be applicable also for use in drilling, boring and turning. Brackets a are fixed to the bed, one at the headstock and one at the tailstock end. Slidable and rotatable in bearings bare hollow shafts f carrying chucks d in which the crank shaft &c. is held. Shafts I rotate and slide in the shafts f and are secured in the headstock and the tailstock spindles m respectively. Taper pins r connect the shafts f and l. In operation the pin i at the tailstock end is removed and the headstock spindle then drives the crank shaft whilst centering at the tailstock end is effected by the tailstock advancing the spindle I carrying the centering drill s. The lathe is stopped, the pin r at the tailstock end is replaced and that at the headstock end is removed. The lathe now drives the spindle l at the headstock end only and centering is effected at that end by advancing both spindles f and the crankshaft by means of the tailstock. Depth of centering is controlled by the spindles l contacting the ends of the crankshaft.
Patent GB-217704-A (GB)
Title: Motor-driven vehicles
IPC: F16H15/10
Filed: 1923-04-24
Abstract: 217,704. Holden, S. F. April 24, 1923. Axle structures; radius rods and torque rotts.-In a motor vehicle of the kind in which the driving disc of friction disc variable gear is driven from the engine through reducing gearing, the friction gear is carried in an axle housing g rigidly attached to axle sleeves c which are connected to the vehicle frame by radius rods l pivoted at n.
Patent GB-439460-A (GB)
Title: Improvements relating to the production of a mirror polish on paper, fabric and similar material
IPC: D21G9/00
Filed: 1935-04-10
Abstract: 439,460. Coated fabrics and paper. ATLAS AGO CHEMISCHE FABRIK AKT.- GES., M÷lkau, near Leipsic, Germany. April 10, 1935, No. 11113. Convention date, May 12, 1934. [Classes 96 and 140] A mirror polish is produced on surfaces of paper or fabric by applying a layer of fusible material, coating the layer with varnish and bringing the coated surface into contact under slight pressure with a surface or roller having a mirror polish. The paper &c. surface may receive a preliminary smoothing by known means before coating. The fusible layer may be coloured and melts at about 100‹ C. It may comprise waxes, resins and rubber, or glue or gelatine with addition of glycerine or grape sugar. The varnish, e.g. a cellulose ester varnish, is infusible at the melting point of the fusible material. The mirror polish is secured by passing the paper &c. between a soft rubber roll and a heated roll, preferably metallic, having a mirror polish and which may be engraved.
Patent GB-568735-A (GB)
Title: Improvements in mercury cathode electrolytic cells
IPC: C25B9/14
Filed: 1943-07-09
Abstract: 568,735. Mercury cathode cells. KREBS & CO. July 9, 1943, No. 11135. Convention date, July 1, 1942. [Class 41] A mercury cathode cell comprises a bottom 2 consisting of a girder formed with flanges 3 supported on a pair of rollers 4 carried by four screw spindles 6 ... 9, the side and end walls, which may be of iron with an insulating covering 15 or may consist of stoneware, synthetic resin, or other insulating material being of such form as to provide non-conducting marginal extensions of the bottom 2. The side walls are bolted to the flanges 3. The cell is provided with a cover 17 formed with openings to accommodate the electrodes 18.
Patent GB-527466-A (GB)
Title: Means for eliminating slackness between a rotatable spindle and its bearing
IPC: F16B21/18
Filed: 1939-04-13
Abstract: 527,466. Bearings and pivots. WILMOTBREEDEN, Ltd., and TURNER, R. P. April 13, 1939, No. 11179. [Classes 44 and 65 (ii)] Slackness between a spindle a of a door latch &c. and its bearing b is prevented by one or more wavy springs c in a groove or grooves d in the spindle or bearing.
Patent GB-431806-A (GB)
Title: Improvements in and relating to rail vehicles
IPC: B61F9/00
Filed: 1934-04-13
Abstract: 431,806. Railway vehicle under - carriages. NOBLE, E. C., Kensington House, Tucmnan 512, Buenos Aires, and YORK, W. D. C., 3, Central Buildings, Westminster. April 13, 1934, No. 11202. [Class 103 (vi)] Relates to rail vehicles of the kind, such as is described in Specification 410,000, that is equipped with flangeless wheels having resilient tyres adapted to be guided on the rails by means of freely-rotating inclined guide-discs which have peripheral portions extending below the tread surface of the main wheels and are mounted on an independent structure designed for attachment to the axle or other unsprung part of the vehicle. According to theinvention, the sub-structure comprises inner and outer arms 9, 10 bridged at their lower ends by an axlepin 11 on which the guide-disc 8 rotates with interposed roller bearings 30, 31. Preferably the arms 9, 10 are formed of stampings or welded sheet metal structures, the outer arm 9 being adjustably secured to the bogie frame by bolts 14 and co-operating elongated slots, while rubber pads 23 with or without packings 24 are interposed between the upper ends of the arms 10 and the axle casings 6 or similar part. In the arrangement shown two guide discs 8, 8<a> are associated with the wheel 3, the inner arm 10 supporting the disc 8<a> being also secured to the bogie frame. Twin taper roller bearings 30, 31 separated by a distancepiece 32 and provided with suitable lubricating and dust-excluding means are employed.
Patent GB-704533-A (GB)
Title: Improvements relating to the manufacture of cathode ray tubes
Inventor: DARLASTON ARTHUR JOHN HALSTEAD
IPC: H01J29/28
Filed: 1950-05-05
Abstract: 704,533. Cathode-ray tubes. EDISON SWAN ELECTRIC CO., Ltd. May 3, 1951 [May 5, 1950], No. 11223/50. Class 39(1) The organic material used in aluminizing the fluorescent screen of a cathode ray tube is a soluble polymerized methacrylate which reverts' to the monomer form at a relatively low temperature avoiding the formation of carbon and oxidation of the aluminium layer during the heating step for removing the organic material. Readily soluble polymerized alkyl methacrylates e.g. methyl ethyl isopropyl and normal butyl polymers, secondary and tertiary alkyl methacrylate polymers. In the example, the phosphor layer is wetted with water and drained, polymerized ethyl methacrylate dissolved in toluene is poured into the bulb and the solvent evaporated, the bulb gently warmed to evaporate the water, and evacuated, and aluminium then vaporized on to the screen. Heating is by infra-red lamps at a low pressure and the polymer reverts to the monomer form and evaporates without decomposition.
Patent GB-1560373-A (GB)
Title: Apparatus for generating stepping motor pulses
IPC: H04N3/22
Filed: 1978-03-22
Abstract: The circuit arrangement produces stepping pulses (SI) by means of which a movement of the stepping motor (SM) is achieved in the optimum load-angle range. The stepping pulses (SI) are formed at points in time (t0, t1) - corresponding to the start of the acceleration - from a number of start pulses, which follow one another at a short interval (t0-t1), and subsequently, at the start of the acceleration after the point in time t2, from a plurality of control pulses. These control pulses are in each case always emitted whenever the rotor of the stepping motor has rotated through a stepping angle ( alpha ). In this way, the acceleration of the stepping motor takes place with the maximum dynamic torque. The stepping pulses are produced by means of a read-only memory (SP) in which data words (DW) associated with the respective characteristic are stored. The data words (DW) determine the division ratio of a frequency divider (FT) which produces the stepping pulses (SI) from clock pulses (T) at a predetermined repetition frequency. <IMAGE>
Patent GB-580156-A (GB)
Title: Improvements in letter and the like document filing cabinets
IPC: A47B63/02
Filed: 1944-06-13
Abstract: 580,156. Drawers. HAMILTON, H. O. June 13, 1944, No. 11289. [Class 52 (i)] [Also in Group XV] In a cabinet for filing documents &c. each drawer has a V-shaped base 5, and a rigid central partition member 7 arranged to run parallel to the sides 10 of the drawer. The base 5 on one or each side of the partition 7 may be stepped, or fabricated step portions may be secured thereto to enable documents &c. to be more readily seen, and separating-plates may be arranged on the base to keep the documents erect in a partly-filled drawer. A card-index drawer D may be arranged in the space above the top drawer, and above that an electric lamp to illuminate the contents of the drawers. The circuit of the lamp is completed and broken on the opening and closing respectively of each drawer. The cabinet is preferably made of steel, the drawers having channels interengaging with bearers &c. arranged on ballbearings or runners. The base B is rectangular and fixed to the cabinet, and is provided with levelling-devices comprising screws 19 having large heads 19a, the screws being threaded through lugs secured to the curved portions, 17 of the side plates 16 of the base. In a modification the base B is not attached to the cabinet, and comprises a rectangular V-shaped support.
Patent GB-994140-A (GB)
Title: Machine tool transmission
IPC: B23B47/34
Filed: 1964-03-17
Abstract: 994,140. Variable-ratio gearing. CINCENNATI MILLING MACHINE CO. March 17, 1964 [June 12, 1963], No. 11310/64. Heading F2D. [Also in Division B3] A drilling machine quill feed transmission comprises an input shaft 12 having an eccentric portion 37, an output shaft 14 carrying two over-running clutches 44, 46, and a pair of integral racks 60, 62 located on eccentric 37, and co-operating with gears 64, 66 on the clutches to thereby rotate shaft 14 in the clockwise direction. Shaft 12 is rotated by a gear 16, and is movable axially in housing 10 relative to the racks, so that the stroke of the latter can be varied. A bush 50 is keyed to shaft 14 at 52, and each clutch 44, 46 comprises a ring 48 and a pair of rollers 54 and springs 56, which are received in notches 58 formed in the bush. Shaft 14 is rotated clockwise by rack 62 when the rack moves to the right, Fig. 1, and it is rotated clockwise by rack 60 when the latter moves to the left. The racks are held axially relative to shaft 14 by a tongue 86 carried in a block 90, and shaft 12 is axially adjusted in the housing 10 by a dial 68 fixed on a shaft 70, a flange 74 on the shaft carrying a shifter 76 which co-operates with a bearing 78 fixed on the shaft 12.
Patent GB-691646-A (GB)
Title: Improvements in pistons for internal combustion engines
IPC: F01P3/10
Filed: 1951-05-15
Abstract: 691,646. Cooling pistons. SOC. D'ETUDES DE MACHINES THERMIQUES. May 15, 1951 [May 15, 1950], No. 11332/51. Class 122(i) In a piston assembly for an internal combustion engine comprising a piston 1, a piston pin 3, a connecting rod 2, and a cooling chamber 5 in the piston above the pin, a generally bell-shaped jacket member 4 is inserted in the piston and secured on the piston pin, the jacket member having its closed top end sealing the cooling chamber 5 and its open downward end surrounding the connecting rod and protruding beyond the lowerend of the skirt of the piston, duct means 10, 6 and 7, 11 in the jacket leading into and out of the cooling chamber 5 and fluid intake and outlet connections 12 and 13 respectively at the lower end of the jacket member for a cooling fluid.
Patent GB-1403669-A (GB)
Title: Ignition circuit arrangements for battery-powered lighters
IPC: F23Q3/00
Filed: 1973-03-08
Abstract: 1403669 Ignition systems BRAUN AG 8 March 1973 [14 March 1972] 11351/73 Heading F1B An ignition system for a battery powered lighter comprises a converter which can be connected to the battery 1 by an actuating element 2, a firing capacitor 11 which can be charged by the converter through a rectifier 10, a firing transformer 12 and a threshold device in a control circuit of the converter which interrupts the oscillation of the converter when the firing capacitor is discharged. As shown the threshold device consists of a capacitor 9 arranged in the control circuit of the connecter, a resistor 16 in the discharge circuit of the firing capacitor 11  being connected to the capacitor 9 in the control circuit through a diode 17. In operation when a predetermined charge voltage on the capacitor 11 is reached the thyristor 14 fires and the firing capacitor 11 is discharged through the primary winding of the transformer 12 and the resistor 16.
Patent GB-294913-A (GB)
Title: Improvements in adjustable pit props
IPC: E21D15/38
Filed: 1927-04-29
Abstract: 294,913. Maccarthy, C. L., and Butterley Co., Ltd. April 29, 1927. Mine props.-A telescoping pit prop is formed in two metal parts, the lower a being of sectionbar having a transverse member f at its upper end and the upper b a double-web section-bar provided with an open end and slots g in the webs so that it can slide over and embrace the web of the lower member. In the form shown, the transverse member comprises a bolt f provided with packing h on each side tn increase the resistance to sliding. A lower guide-bolt k may also be provided and this may have packing to increase the resistance to slip. In a modification, the sliding members 2, 3 are of circular section, the upper member being provided with flattened surfaces 5 at the slots against which the packing h abuts, and washers may be provided to prevent the packing from entering the slots.
Patent GB-332230-A (GB)
Title: Improvements in machines for lapping spur gears
IPC: B23F19/04
Filed: 1929-04-16
Abstract: 332,230. R÷hl, F., and Hofmann, F. April 16, 1929. Divided on and addition to 309,870, under which a Specification was laid open to inspection under Sect. 91 of the Acts, April 17, 1929. Gear wheels, trueing teeth of; tools.-In lapping toothed gears in the manner described in the parent Specification, one of the coacting gears is arranged to drive the second gear against the resistance of a brake which is mounted on the spindle of the second gear and which determines the lapping pressure. A driving shaft h carrying a crank-disc t is arranged to oscillate a shaft v carrying a double lever w which imparts axial reciprocating movement to a pair of gear-carrying spindles s, s<1>. The spindles are rotated at a slow speed for the feeding movement by means of a shaft m, worm gearing p and spur gearing r. The spindles s, s<1> coact respectively with spindles d<1>, d" carrying mating gears, these spindles being carried on pivoted arms c' and being operated to give the radial component of the lapping movement by means of adjustable connecting-rods actuated from the shaft m through bevel gearing o, y and crank disc z. The spindles d<1>, d<11>, are mounted on adjustable sleeves 7, Fig. 4, and the required lapping pressure is obtained by means of springs 10 and brake lining 12.
Patent GB-912739-A (GB)
Title: Procedure for recovering rubbery polymers and copolymers from solution
IPC: C08C2/06
Filed: 1961-03-30
Abstract: A rubbery polymer or copolymer which has been prepared by polymerizing or copolymerizing a conjugated diene of four to eight carbon atoms and in which the diene preponderates is recovered from solution in a hydrocarbon solvent by stripping by introducing the solution into a first stripping zone and also supplying water thereto, removing a mixture of solvent and water overhead withdrawing rubber crumb plus solvent plus water as bottoms which are passed to a second stripping zone where a hot overhead vapor stream is removed and passed to the first zone as the principal source of heat therefor, steam being supplied to the second zone is amount sufficient to maintain a predetermined p  temperature in the first zone and a slurry of rubber crumb in water removed from the bottom of the second zone and water separated off.  The second zone is preferably operated at 214 DEG -245 DEG F. and pressure 6,5 to 30 p.s.i.a. while the first is at 165 DEG  to 225 DEG F. and 5 to 25 p.s.i.a.  Specified rubbers are cis. and trans. polybutadiene and polyisoprene while toluene is the solvent.  Apparatus for carrying out the process is described. Specification 851,893 is referred to.
Patent GB-954161-A (GB)
Title: Linkage for a convertible settee
IPC: A47C17/16
Filed: 1962-03-27
Abstract: 954,161. Bed-settee hinges. A. FROHWEIN. March 21, 1963 [March 27, 1962], No. 11760/62. Addition to 838,898. Heading A4J. The back 16 and seat 15 of a bed-settee, which are pivotally attached to each other, are supported by two curved links 11, 12 and have a latch member 18 pivoted to a bracket 19, which is fixed either to the back 16 or seat 15, so that a notch 20 and a pawl 24 on the latch member engage a pin 21 on either the seat 15 or back 16, respectively. The catch on the latch member 18 can be automatically tripped and reset by lifting the seat 15, so that the latch member 18 can be used either as a strut to enable pivoting of the seat and back together or, after releasing the catch, allow the seat to be pivoted alone.
Patent GB-860479-A (GB)
Title: Improvements relating to camera shutter mechanisms
IPC: G03B7/083
Filed: 1959-04-07
Abstract: 860,479. Photo-electric camera exposure control. INTERNATIONAL POLAROID CORPORATION. April 7, 1959 [April 21, 1958], No. 11763/59. Class 40 (3). [Also in Group XX] A camera shutter mechanism comprises a movably mounted first member, a second member mounted on the first member and being movable relative thereto to adjust the size of an opening movable across the camera aperture and then being movable with the first member as it moves to expose the aperture, and photosensitive means to vary the exposure in proportion to its electrical output through means mounted on the first member. Diaphragm blade 30 and shutter blade 32 are disposed between camera exposure aperture 28 and part of lens system 24. Figs. 1 and 3 show the shutter mechanism in the released and set positions respectively. The shutter blade is a plane circular ring 63 with cut-outs, e.g. 64 for lightness and dynamic balance and with an arcuat slot 33 which may be of varying width throughout its length to afford a greater range of exposures. Galvanometer moving coil 80 fixed to blade 30 and energized by a photovoltaic cell, rotates the blade to vary the obturation of slot 33 in the shutter blade before exposure. Clockwise movement of actuator 40 causes shutter blade 32 to rotate anticlockwise via gearing 38, 42 into the set position and pin 34 engages latch 44. Pawl 52 is released to lock diaphragm blade 30 to the shutter blade. Continued clockwise movement of actuator 40 releases latch 44 and permits the shutter blade to rotate clockwise at constant speed under the bias of spring 46 to uncover exposure aperture 28 and rotation ceases when pin 34 strikes latch 36. The photo-cell connection to the galvanometer is broken when the shutter blade is in the rest position by a linkage 170-174 which additionally provides synchronous releasable retention of the diaphragm blade and movement of latch 36. For occluding the exposure aperture during that part of anticlockwise shutter blade rotation where the effective blade opening traverses the aperture, cover blind 162 is provided and is released by the engagement of extension 164 by tab 68 on the shutter blade, Fig. 5 (not shown). Actuator 40 on release of manual pressure returns to its initial position under the bias of spring 188. The photo-cell may be provided with a translucent cover to widen the range of intensity to which the photo-cell responds.
Patent GB-494267-A (GB)
Title: Improvements in or relating to the treatment of textile materials
Filed: 1937-04-24
Abstract: Textile materials are coloured or otherwise modified by applying thereto a thickened aqueous composition, free from gas bubbles, which contains a dyestuff or other modifying agent and a water-soluble cellulose ester or ether (free from xanthate residues), of which an ester or ether radicle contains a hydroxyl or an acidic group.  Apart from dyestuffs, the compositions may contain the following textile modifying agents, dye components which yield colours on oxidation, discharges, pigments or non-substantive dyes together with a swelling agent or solvent for the materials and delustring accelerators. Suitable water-soluble cellulose derivatives are the water-soluble hydroxyalkyl ethers of cellulose, carboxy alkyl ethers of cellulose, cellulose esters obtained by the action on an acyl ester of cellulose, of organic hydroxy acids or di- or poly-basic acids, e.g. lactic acid, oxalic acid, or tartaric acid.  Cellulose derivatives of high viscosity are preferably employed.  In examples: (1) cellulose acetate fabric is printed with a composition consisting of 1-(oxyethylamino)-anthraquinone and high viscosity oxyethyl cellulose; (2) cellulose acetate fabric is printed with a composition containing diphenyl black, aniline hydrochloride, methylated spirits, acetic acid, lactic acid, high viscosity oxyethyl cellulose, sodium chlorate, cupric chloride and aluminium chloride; (3) cellulose acetate fabric dyed a dischargeable navy shade is printed with a composition containing 1-(oxyethylamino)-anthraquinone, stannous chloride, sodium thiocyanate, citric acid, methylated spirits and high viscosity oxyethyl cellulose; (4) a fabric consisting of saponified cellulose acetate and viscose yarns dyed a dischargeable navy is printed with a composition containing zinc formaldehyde sulphoxylate, "Igepon" (Registered Trade Mark) A and high viscosity oxyethyl cellulose; and (5) cellulose acetate fabric is printed with a paste consisting of 2, 4 - dinitro - 41 - amino - diphenylamine, diacetone alcohol and an aqueous solution of high viscosity oxyethyl cellulose.  Specifications 463,317 and 473,975 are referred to.