baber/WOPTO huggingface dataset:
Patent GB-108491-A (GB)
Title: Improvements in or relating to Spool-mountings for Kinematographic Apparatus.
Inventor: EVANS HENRY RIEGEL
IPC: G03B21/32
Filed: 1917-03-30
Abstract: 108,491. Evans, H. R. March 30, 1916, [Convention date]. Feeding and winding webs.-Means for driving the take-up spool or for braking the paying-out spool of a kinematograph projector comprises a spool-carrying member in variable frictional engagement with a positively driven or held member, the friction varying with the weight of film on the spool so as to tend to equalise the tension on the film. As shown, the core-piece J<6> of a takeup spool is secured to a disk J<3>, the diameter of which is slightly less than the internal diameter of a cup J<2> by which it is driven. Driving is effected by the friction between the lower parts of the surfaces of the disk and cup, which varies in accordance with the weight of film on the spool. The disk J<3> is provided with a shaft J<4> which loosely fits within a hollow shaft J<5> secured to the cup J' and is driven through worm gearing by a shaft I<2> forming part of the kinematograph mechanism. In the case of a paying-out spool the cup J<2> is locked against rotation to provide a braking action.
Patent GB-113513-A (GB)
IPC: G03B27/08
Abstract: 113,513. Dehn, F. B., (Bell & Howell Co.). March 8, 1917. Kinematograph apparatus.-Printing-apparatus, in which the film is moved continuously or intermittently, comprises feed and stop mechanism. Figs. 1 and 2 show opposite side views of the driving-gear which comprises a motor 23, main drive shaft 25, gear 29, 30, 32, 33, pay-out spools 48 and 49 and take-up spools 38, 40 for the positive and negative film respectively. The driving- belt 52 passes over jockey-pulleys 54, 55, the latter being mounted in a belt-tightening device 58. When the apparatus is used for printing, the belt 52 is loose, but in order to re-wind either film, this belt is tightened, the film removed from the sprockets &c., passed over an idle roller 62 and secured to spool 49, and the driving-mechanism thrown out of gear. The positive and negative films respectively pass from the spools 48, 49, over guide-rollers 63, 64 to feed-sprocket 65, Fig. 3, film-gate, sprocket 310, and take-up spools. The films are kept on the sprocket 65 by a device comprising rollers 66, provided with annular recesses to accommodate the sprocket teeth and mounted on lever 68 pivoted on shaft 69 and kept in both its in and out positions by a swivelled spring-pressed rod 71. A similar lever 75 and roller 77 serve botH to retain the negative film against the lower segment of the sprocket, so that it is separated from the positive film, and to determine the length of loop necessary for the film feed. The negative film has a notched edge against which is pressed by means of an expansion spring 90, Fig. 5, a roller or the like 78<a>, mounted on an arm 79 of an insulated lever pivoted in a box 80 situated near the sprocket 65. An adjustable screw 89 is tapped in the other arm 88 of the lever and is adapted to contact with an insulated spring contact plate 86 connected to a battery circuit 87, Fig. 6, the other wire of the battery circuit being connected to one of the pivots 83. The circuit 87 includes a solenoid 94, which, when energized, attracts a metal disk 96 and releases a stop mechanism preferably similar to that described in Specification 114,003, so that one end of a rod 102 moves into the path of a stud 104 on gear 29, the motor continuing to run owing to the provision of a friction clutch, for instance as described in the abovementioned Specification. A hand-hole 200 allows the stop mechanism to be operated manually when desired. The roller 100 is normally held against knob 101 by a semicircular spring. Simultaneously with the operation of the stop mechanism, the air supply to the lamphouse, for the purpose described in Specification 113,842, is cut off by a valve 108 actuated by one arm 106 of a bell-crank lever operated bv the rod 102. The arm 106, on falling, engages a push-button 110 and breaks the solenoid circuit.
Patent GB-777119-A (GB)
Title: Improvements relating to radiation responsive apparatus
Inventor: GRIFFIN PETER FIDLER
IPC: G01J1/44
Filed: 1954-04-20
Abstract: 777,119. Photo-cell circuits. BRITISH THOMSON-HOUSTON CO., Ltd. April 27, 1955 [April 20, 1954], No. 11366/54. Class 40 (3). An infra-red responsive photo-cell PC is arranged to change the tube of an A.C.-fed gas-filled valve R3 to operate a relay S in its anode circuit. In the arrangement shown the grid of the gas-filled valve is biased negative by rectifier D fed from the output of transformer T but not sufficiently so to cut off the tube. Irradiation of the cell, which with resistance R1 acts as a potential divider, cuts off the thyratron. Relay S then operates the output circuit and increases the negative bias potential in the valve grid by removing a short-circuit from potentiometer P2. Cell PC and resistance R1 may be interchanged when the thyratron may be made normally cut-off and conducting when the cell is illuminated.
Patent GB-122587-A (GB)
Title: Improvements relating to Ball & Float Valves.
Inventor: BOWMAN ROBERT WALTER
IPC: F16K31/20
Filed: 1918-07-12
Abstract: 122,587. Bowman, R. W. July 12, 1918. Strainers, applications of. - The inlet passage A of a ball and float valve is fitted with a gauze thimble-shaped strainer B of brass or copper formed with an outer rim of lead or other material to fit the waterway.
Patent GB-975842-A (GB)
Title: Improvements in thermostatic controllers
Inventor: BRUYNE NORMAN ADRIAN DE
IPC: G05D23/275
Filed: 1962-03-26
Abstract: 975,842. Pneumatic actuation of switches. TECHNE (CAMBRIDGE) Ltd. March 25, 1963 [March 26, 1962], No. 11462/62. Heading H2B. [Also in Division G3] An immersion liquid-heating unit which may be attached to a bath 1 by a clamp 2 has the heater element 4 controlled by a micro-switch 6 actuated by a capsuled diaphragm 19 through a lever 7 and a weighted member 20. An impeller 8 driven by an electric motor 9 connected to the heater supply draws liquid through tubes 10, 11 whereby a suction is produced which acts via a restriction 13 e.g. a capillary tube, to operate the diaphragm 19 whereupon the microswitch 6 closes. The tube 10 is connected to a jet 15 with which co-operates a flapper 16. When the liquid reaches the temperature indicated by an adjustable pointer on a scale 35 a bimetal helix 12 rotates a rod 32 and arm 33 and moves the flapper so that the suction acting on the diaphragm is destroyed and the microswitch 6 opens. Upstream of the jet 15 the tube 10 is connected to another capsuled diaphragm 23 which is deflected by an electric-motor driven eccentric at a frequency of one oscillation per second whereby a pulsating sub-atmospheric pressure is set up in the jet 15 the magnitude of which is insufficient to operate the micro-switch. The pulsating pressure reduces the limits between which the temperature of the liquid is controlled. Specification 773,977 is referred to.
Patent GB-926426-A (GB)
Title: Improvements in spinning machines
Inventor: SUPPARO GIOVANNI
IPC: D01H11/00
Filed: 1961-03-29
Abstract: 926,426. Cleaning textile spinning-machines. FRATELLI MARZOLI & C. S.p.A. March 29, 1961 [April 5, 1960], No. 11582/61. Class 120 (3). A spinning-machine is cleaned by directing air jets across the drafting rollers 1 in the same direction as that of advancement of the slub therebetween; directing air jets coming from a cavity in the spindle rails in a direction generally along the axis of rotation of the spindles 3; and exerting a sucking action in the neighbourhood of the last drafting roller where said air jets would otherwise impinge on each other. Compressed air from a channel C cleans the rollers 1 and passes through a suction channel B to a compressor for recirculation. Compressed air is supplied to the spindle rail by channels I, Fig. 3, positioned as shown with respect to the spindle control H. To clean the ring, air passes from a channel N through an extensible rubber hose P to a channel S and through perforations in the ring rail.
Patent GB-1135276-A (GB)
Title: Improvements in and relating to thermally coupled electronic circuits
IPC: H03K3/282
Filed: 1966-03-16
Abstract: 1,135,276. Low frequency oscillator circuits. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 16 March 1966 [16 March, 1965], No. 11588/66. Heading H3T. [Also in Division H1]  A low frequency oscillator comprises a control device having its outputs connected to heating elements and its inputs coupled to temperature sensitive elements whereby oscillation takes place at a frequency determined by the transmission of heat to the temperature sensitive elements. When transistor T3 of the differential switching circuit F is not conducting current flows through a heating element P1, raising the temperature of a transistor S1. Its current accordingly rises until the voltage it applies to terminal B is less than to voltage at A whereupon the conductive condition of transistors T3 to T4 reverse whereby heater P1 is de-energized and P2 is energized. Transistor S2 is now heated and in this manner the circuit oscillates. The transistor and heater units may be in integral form in which case a resistive element or a forward or reverse biased PN diode acting as a heater surrounds either the transistor or a negative temperature coefficient resistor which may replace the transistor (Figs. 4 and 5 not shown). Alternatively a heater coil may be wound concentrically with a temperature sensitive resistor coil.
Patent GB-281164-A (GB)
Title: Improvements in piston rings
IPC: F16J9/26
Filed: 1927-05-02
Abstract: 281,164. Broderick, E. N. May 2, 1927. Piston packing. - A piston-ring casting is made of greater diameter than the finished ring and with a widened outer periphery, as shown in dotted lines in Fig. 6, so that, in machining the ring to its final form, the chilled and hardened surface metal is removed from the outer periphery 14 and from the sides 13 near the outer periphery. Alternatively, the rings may be cut from a cylinder 14, Fig. 10, of larger diameter than the finished rings and having internal grooves 15 in the planes in which the cylinder is divided.
Patent GB-788804-A (GB)
Title: Formation of hard intermetallic coatings from electro-deposited layers of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum and tungsten
IPC: C25D3/66
Filed: 1955-04-22
Abstract: 788,804. Electrodeposition of refractory metals to form intermetallic compounds thereof. HORIZONS, Inc. April 22, 1955 [April 29, 1954], No. 11695/55. Class 41. A layer of a hard intermetallic compound of one of the refractory metals of the Periodic Groups IVa, Va and VIa and one of the metalhardening elements boron, carbon, nitrogen and silicon is formed electrolytically on a basis metal by immersing said metal containing one of the specified metal-hardening elements as cathode in a fused salt bath composed of a halide of the refractory metal and a diluent alkali metal halide, and heating the cathode bearing the deposited refractory metal so as to effect thermal diffusion of the metal hardening element from the basis metal into the refractory metal. The basis metal may be steel or iron, copper, brass, bronze, nickel or a refractory metal treated to have a suitable content of a metalhardening element, and the refractory metal halide may be a simple or double halide. The refractory metal may be deposited at a temperature above 800 C. by the cladding method of Specification 775,585 or by that of Specification 788,295. Alternatively the refractory metal may be deposited at 500-600 C. with an electrolysing voltage of 5-8. volts, followed by subsequent heating at 800-1000 C. to effect diffusion, thicker layers being obtained with higher temperatures.
Patent GB-1077344-A (GB)
Title: Urea formaldehyde textile finishing agents and their production
Inventor: GRASSHOFF HANS JOACHIM
IPC: C08G12/12
Filed: 1966-03-17
Abstract: A material which is readily soluble in water and suitable for textile finishing is a solid mixture which contains not >0.3% by wt. free HCHO and contains at least two of the components urea, monomethylol urea and dimethylolurea in such proportions that the molar ratio of free and combined urea to combined HCHO ranges from 1:1.4 to 1:1.85. The mixture may be obtained by reacting urea and HCHO in the molar ratio 1:1.4 to 1:1.85 in aqueous solution at pH 6.5 to 8.5 at 30 DEG to 40 DEG  C for 1/2 to 5 hours.  The reaction mixture is then cooled to 15 DEG  to 28 DEG  C. and stirred at this temperature for at least 24 hours; the crystal mash obtained is spray dried.  The crystal mash may contain at least 30% by wt. of dry residue.  The pH of the reaction may be controlled by use of an organic base of medium strength, e.g. triethanolamine.ALSO:Textile materials are rendered crease resistant by treating with an aqueous soln. of a solid mixture which contains not >0.3% by wt. free HCHO and contains at least two of the components urea, monomethylolurea and dimethylolurea in such proportions that the molar ratio of free and combined urea to combined HCHO ranges from 1:1.4 to 1:1.85.  The mixture may be obtained by reacting urea and HCHO in the molar ratio 1:1.4 to 1:1.85 in aqueous soln. at pH 6.5 to 8.5, at 30 to 40 DEG C for 1/2 to 5 hours.  The reaction mixture is then cooled to 15 to 28 DEG C and stirred at this temp. for at least 24 hours; the crystal mash obtained is spray dried.
Patent GB-610792-A (GB)
Title: New or improved angle measuring or testing instrument
IPC: G01B5/24
Filed: 1946-04-16
Abstract: 610,792. Gauging departure from standard form. HARRIS, W. A. April 16, 1946, No. 11731. [Class 106 (ii)] [Also in Group XX] The tapered surface k to be tested is supported, e.g., between centres h, as shown, in a carriage a mounted on a pair of rollers c a,t one end and a single roller b at the other, the rollers being so chosen that the upper surface of the work-piece k lies parallel to the tracks for the rollers. The base d carrying the tracks is provided with a number of holes m to receive a bridge i carrying the dial indicator j. A jack f enables the rear wheels c to be changed as required. Movement of the carriage is limited by stop-pieces n. In a modification for testing an internal tapered surface, one headstock is provided with a face-plate to support the object and the dial indicator is arranged to bear on the internal surface.
Patent GB-680372-A (GB)
Title: Latches for doors and the like
Inventor: SLATER MAURICE REUBEN
IPC: E05C1/16
Filed: 1950-05-11
Abstract: 680,372. Latches. SMITH, E. A., ROUND, J. G., (trading as ATLAS MANUFACTURING CO.). May 11, 1951 [May 11, 1950], No. 11735/50. Class 44 In a spring loaded latch of the kind in which the springs 18 bear on a transverse removable bridge piece 14, the casing consists of two sheet metal pressings each provided with rim flanges 11 in which locating notches 12 for the ends of the bridge piece are formed, partly in each 'abutting flange so that the two casing parts are correctly positioned when the bridge piece is engaged in the notches. The central part of the bridge piece is preferably reduced in width to clear the bolt lath 15, and forwardly offset to retain the springs.
Patent GB-989944-A (GB)
Title: Apparatus for testing the hardness of solid bodies
IPC: G01N3/52
Filed: 1964-03-20
Abstract: 989,944. Testing hardness; recording-apparatus. BERGWERKSVERBAND G.m.b.H. March 20, 1964 [March 25, 1963], No. 11929/64. Headings G1J and G1S. A hardness tester with recording means comprises an impact body 3 which under the action of a spring 5 strikes a bolt 2 and recoils, the body 3 engaging member 8 during recoil so that the recoil distance is shown by a maximum indicator mechanism 7 having a stylus 10 which records a mark, whose length is proportional to the recoil distance on a recording strip 18. The recording strip is preferably transparent with a wax layer applied to one side in which the stylus 10 forms an impression. The strip 18 is wound between a pair of spools 16, 17 and may be advanced a small predetermined distance by means of a pawl 22 which shifts a ring gear 21 forward by one tooth each time the impact body is tensioned for use.
Patent GB-1438480-A (GB)
Title: Preparation of alkyl 2,5-dihalo-3-nitrobenzoates and hydrolysis  products thereof
IPC: C07C205/59
Filed: 1975-03-21
Abstract: 1438480 Preparation of alkyl 2,5-dihalo-3- nitrobenzoates and hydrolysis products thereof CHINOIN GYOGYSZER ES VEGYESZETI TERMEKEK GYARA RT 21 March 1975 [22 March 1974] 11987/75 Heading C2C A process for the preparation of an alkyl 2,5-dihalo-3-nitrobenzoate or a hydrolysis product thereof, comprises halogenating an alkyl 3-nitro-5-halosalicylate and, if desired, subjecting the alkyl 2,5-dihalo-3-nitrobenzoate thus obtained to hydrolysis. The nitration of the alkyl 5 halosalicylate to produce the starting material is carried out preferably with concentrated nitric acid in acetic acid medium. The halogenation can be performed using any appropriate halogenating agent preferably in an organic solvent, particularly in dimethyl formamide. The further hydrolysis may be effected preferably with an alkali metal hydroxide in an aqueous alkanol preferably in aqueous ethanol.
Patent GB-444441-A (GB)
Title: Improvements in passenger carrying cars for use on amusement rides
IPC: A63G7/00
Filed: 1935-04-18
Abstract: 444,441. Amusement apparatus. HAYASHI, R., 1, 1-Chome, Shio-cho, Yotsuya-ku, Tokio. April 18, 1935, No. 11995. [Class 132 (i)] In an amusement ride, the passenger - carrying cars are adapted to slide down inclined track rails, and, at less inclined portions of the track, or where cars have to be pulled up a sloping part thereof, auxiliary rails are provided, adapted to co-operate with normally inoperative running wheels on the cars to lift the cars clear of the main track. Braking means provided on each car is operable by a pedal at the front of the car and also by a push rod at the front of the car adapted to be actuated by the impact of a buffer fixed to the rear of a preceding car. As shown, the car body 3 is provided on each side with wooden slides 8 adjustably mounted in housings 7 to support the car on rails 1 at steep portions of the track as shown in Fig. 7. At the portions of the track where the slope is slight under - rails 2 are provided, and in passing on to such portions, wheels 32 on the car engage the rails 2 which are so disposed with respect to rails 1 that the slides 8 rise clear of rails 1. The tracks 1, 2, are L-sectioned and side rollers 12 on the car engage rails 1 to prevent rocking. Brakes. Friction-wheels 19 carried by arms 18 pivoted at 17 may be rocked into engagement with rails 1 through links 16, levers 14 pivoted at 13, and a handle rail 15 preferably pivotally arranged to facilitate access to the car seat 4. Further braking rollers 33 are mounted on a shaft 24 slidable in slots 25 in the car body 3, depression of a pedal 21 forked at 23 to embrace shaft 24, and pivoted at 20 raising the shaft 24 in slots 25 to bring the braking rollers 33 into engagement with rails 1. The shaft 24 is rigid with a rod 26, which, in contacting with the spring buffer 28 of a preceding car also raises the shaft in slots 25 to brake the car.
Patent GB-1073221-A (GB)
Title: Improvements in stoppers for hot-water bottles
Inventor: MCCARTHY STANLEY
IPC: A61F7/08
Filed: 1963-03-27
Abstract: 1,073,221. Bottle stoppers. DUNLOP RUBBER CO. Ltd. March 4, 1964 [March 27, 1963], No. 12026/63. Heading B8T. A plug stopper, for a hot water bottle, including a washer of resilient material to provide a seal, has a thumb grip extending from its body and supporting a removable spare washer. In one embodiment the spare washer (47, Fig. 4, not shown) is held against the grip (43) by a retaining member provided with a bead (45) and peg (46) to engage the aperture 44; a raised boss (41) ensuring a tight fit in the washer. The washer may also fit a boss integral with the grip, and be held by a peg with an enlarged head. In further embodiments the washer is held in an aperture (52, Fig. 5, not shown) in the grip by interlocking members (54, 55); or retained on the grip by a retaining member having pegs at its corners.
Patent GB-127449-A (GB)
Title: Improved Funnel for Liquids.
Inventor: LEAVER FREDERICK
IPC: B67C11/02
Filed: 1918-07-25
Abstract: 127,449. Leaver, F. July 25, 1918. Funnels.-The interior vent channel or passage c of a funnel extends from the top edge of the bowl a of the funnel to, or slightly beyond, the bottom of the nozzle b and has a cross-sectional area which gradually increases from the bottom to the top.
Patent GB-925206-A (GB)
Title: Improvements in or relating to vehicles
IPC: B62D59/04
Filed: 1961-04-05
Abstract: 925,206. F-P servomotor control systems. INTERNATIONAL HARVESTER CO. April 5, 1961 [May 31, 1960], No. 12155/61. Class 135. [Also in Group XXXI] The output speeds of two power units, one on each of two articulated sections of a vehicle, are automatically controlled by a single device 58, the engines being controlled by a single actuator 44, 48. The device 58 has a spool 62 centred by springs 78, 80 so that, normally, on depression of pedal 44 on the front section, compressed fluid is supplied from reservoir 52 to piston and cylinders 114, 118 and 116, 120 on the engines via pipes 76, 74 respectively, to adjust engine injection pumps 127, 129. Fluid-pressure sources 126, 128 pressurized by conventional means driven from the output shafts of torque converters 18, 40 supply pressurized fluid via pipes 110, 112 to either side of a diaphragm 104 fast with extension 130 of the spool 62. Should the wheels of the rear section for example, spin, then the increased speed of torque converter 40 causes diaphragm 104 to move spool 62 to the left to block pipe 54 from pipe 74 which is vented via pipe 92. Piston 116 decreases the output of the rear section engine. On turning of the vehicle, a surface 136 or 137 on a cam follower 134 carried on the pivot 23 on the rear section, engages a roller 132 to move spool 62 to the left to reduce the speed of the rear engine and wheels. The cam surfaces 136, 137 permit the vehicle sections to turn for 25 degrees or less relative to each other before the spool is adjusted. During a 90 degrees turn the rear engine is idle with no drive to the rear wheels.
Patent GB-542020-A (GB)
Title: Improvements in or relating to apparatus for removing solid impurities from gases
IPC: F01N3/04
Filed: 1940-07-26
Abstract: 542,020. Filtering gases. CUNDILL, S., and RUSTON & HORNSBY, Ltd. July 26, 1940, No. 12175. [Class 8 (ii)] Internal combustion engine exhaust gases are filtered by wood sawdust, slag wool &c. contained in the space between co-axial bucketshaped reticulated vessels 12, 11 ; the gases are moistened by passing over water in a chamber 3 before passing to a distributing chamber 5 supplying the filter box which may contain two filters in separate compartments. The filters may be formed with removable outer bottom plates 13 to facilitate renewal of the medium, and with flanges 18, 20 which may be bolted to ribs 10 on the filter box, and to a handle 23. On leaving the filters, the gases are directed downwards into collecting chambers containing water and through flame trap grids into exhaust pipes. Specifications 417,049 and 515,347, [Group XII], are referred to.
Patent GB-596677-A (GB)
Title: Method of purifying solids by rectification
IPC: B01D3/34
Filed: 1945-05-15
Abstract: Readily fusible solids such as naphthalene, phenol and anthracene are freed from volatile impurities by introducing the solid and an auxiliary liquid into a distillation column, the liquid having a lower boiling point than the solid and being miscible therewith; and distilling in such a manner that the p  auxiliary liquid distils and refluxes in a closed circuit, while the purified substance is taken off in the liquid state from one of the plates of the column, where it is free from admixture with the auxiliary liquid.  The liquid may be mixed beforehand with the solid or it may be introduced separately into the head of the column.  Benzene or a light oil boiling up to 180 DEG C. may be used in the purification of anthracene.