baber/WOPTO huggingface dataset:
Patent GB-1452911-A (GB)
Title: Adhesives
IPC: C09J123/08
Filed: 1973-03-17
Abstract: 1452911 Laminated tiles DUNLOP Ltd 26 Feb 1974 [17 March 1973] 12943/73 Heading B5N [Also in Divisions B2 and C3] Self adhesive tiles are provided on one face with a coating of a permanent tack adhesive comprising (1) an ethylene/vinyl acetate copolymer, (2) a plasticizer and (3) a cyclic ketone resin which is covered with a removable protective layer. The tiles may be of compositions comprising polyvinyl chloride or vinyl chloride/ vinyl acetate copolymers, fillers, pigments, chlorinated paraffins and phthalate ester plasticizers, e.g. di-n-heptylphthalate or di(C 7-9  alkyl)phthalate. The protective layer may be of paper or plastics foil.
Patent GB-454667-A (GB)
Title: A rotary valve two stroke internal combustion engine
IPC: F01L7/12
Filed: 1935-05-01
Abstract: 454,667. Valves. BLACKWELL, J., 48, Walter Street, Blackburn. May 1, 1935, No. 12947. [Class 7 (vi)] A rotary valve A for two-stroke engines has ports K<1>, L<1> controlling inlet from the carburetter at K to the crank case at L, the charge being compressed by the piston into the hollow valve, which forms a transfer passage, and through ports M, M<1> at the upper end into the cylinder, neither of the ports L or M being controlled by the piston. The upper bearing D<2> for the valve is shouldered at J to take end thrust, and is fitted with a packing-ring X.
Patent GB-818434-A (GB)
Title: The decarboxylation of aromatic hydroxy acids
Inventor: ROSTRON ARTHUR JOHN
IPC: C07C37/50
Filed: 1957-04-24
Abstract: Hydroxy aryl carboxylic acids are decarboxylated by heating in an aqueous medium in the presence of ammonia or an aliphatic amine.  The preferred amines are mono- or di-methylamine or ethylamine or mono- or di-ethanolamine and the decarboxylation may be carried out by heating the mixture in a closed system at 100-300 DEG  C., preferably 150-200 DEG  C.  The amine or ammonia may be present in an amount between 0.5 and 5 per cent, preferably about 1 per cent, of the weight of the hydroxy acid and the quantity of water may vary from 0.5 to 3 times the weight of the hydroxy acid. In the examples 4-hydroxy isophthalic acid is heated in a sealed tube for 1 1/2 hours at about 180 DEG  C. with (1) 1 per cent monoethanolamine; (2) 1 per cent diethylamine; (4) 1 per cent ammonia; (3) a mixture containing 4-hydroxy isophthalic acid, p-hydroxy benzoic acid, salicylic acid and phenol is heated 6 hours at 159-62 DEG  with 1 per cent monoethanolamine.  Blank runs without ammonia or an amine are made in each example.  The products from all the examples include phenol, p-hydroxy benzoic acid, salicylic acid and unchanged starting material.  A higher yield of phenol is obtained when the mixture includes ammonia or an aliphatic amine.
Patent GB-181337-A (GB)
Title: Improvements in cam mechanism for gill boxes
IPC: D01H5/04
Filed: 1922-05-09
Abstract: 181,337. Saco-Lowell Shops, (Assignees of Hedrick, C. C.). June 9,1921, [Convention date]. Gill boxes &c.-The cams 8, Fig. 2, for transferring the fallers from one screw to another are formed on two half-discs 3 with square apertures 10 to fit a squared portion 2 of the screw shaft 1. The half-discs are provided with partially screwed coned portions 9, Fig. 1, and are secured in position by a sleeve 4 and lock-nuts 6, 7. Shoulders 11, 12 on the shaft prevent longitudinal movement.
Patent GB-299346-A (GB)
Title: Improvements relating to electric regulating devices
IPC: H02P9/24
Filed: 1927-05-16
Abstract: 299,346. British Thomson-Houston Co., Ltd., and Parry, R. D. May 16, 1927. Regulation, automatic.-A regulator maintain. ing an electrical characteristic constant is associated with means for quickly readjusting the action of the regulator when the characteristic regulated varies to a predetermined extent above or below normal. An auxiliary relay may shortcircuit a coil of the regulator or a resistance in series therewith, vary the effect of retarding means such as a dashpot or take over the function of the main contact member during the abnormal conditions by operating on the circuit made by the regulator contacts. The auxiliary relay 25 shown in Fig. 1 short-circuits a resistance 30 in the circuit of the regulating coil 21 on low voltage and short-circuits the coil on excessive voltage. The dashpot 24 associated with the regulating coil 21, according to the modificcation shown in Fig. 2, has a sleeve 40 co-operating with V-shaped openings 43, and its retarding effect is suddenly reduced on high and low volts, to reduce the time lag of the regulator coil, by the auxiliary relay 25 and an electromagnet 36 adapted to move the sleeve. Fig. 3 shows an auxiliary relay 25 which operates upon normally open contacts 31<1> and normally closed contacts 321 to short-circuit the resistance 11 controlled by the regulator contacts upon low volts and to open the circuit through the regulator contacts on high volts, thus taking over the regulator function. The torque-type regulator shown in Fig. 4 is associated with a series resistance 30, which is short-circuited by the relay 25 on high volts, the regulator coils being short-circuited on low volts. A relay operating on the resistance controlled by a torque-type regulator is also described.
Patent GB-627789-A (GB)
Title: Improvements in or relating to earth-moving equipment
IPC: E02F3/64
Filed: 1947-05-15
Abstract: 627,789. Bowl-type earth scrapers. BLAW KNOX, Ltd., and CONACHER, J. E. May 15, 1947, No. 13139. [Class 68 (i)] In earth-moving apparatus of the kind comprising a scraper bowl mounted on a wheeled frame and fitted with a tailgate movable towards the leading end of the bowl for discharging its contents, the tailgate is operated by means of a cable connected to winding gear and passing over sheaves, at least one of which is mounted on the bowl-supporting frame and another on the free end of a lever arm pivoted to the frame at its other end and connected to the tailgate by at least two links or thrust-rods symmetrically arranged with respect to the lateral edges of the tailgate. The tailgate 17, guided by rollers 18, 19 running on the floor 13 of the pivoted scraper bowl and in guides on the sides 14 thereof respectively, is moved towards the leading end of the bowl by means of thrust rods 23 pivoted at 22 to a bifurcated lever arm 20, itself pivoted to the machine frame at 21; the arm 20 is actuated by a cable 28 anchored to the machine frame at 29, reeved around independently rotatable sheaves 25 on the arm and sheaves 26 shackled to the frame at 31, and passing over a pulley 27 and through a hollow or channel section stay 28 to a winch on a tractor. The tailgate is returned to its retracted position by springs housed in cylinders 32.
Patent GB-132462-A (GB)
IPC: A41F9/00
Abstract: 132,462. Greenwald, C. E. April 14, 1919. Belts; fastening wearing-apparel.-Belts, intended for supporting trousers and the like, are provided with smooth thickening-strips 7 on the inner side adapted to rest upon the hips. The strips taper at their ends to a thin edge and may project below the belt.
Patent GB-1303667-A (GB)
IPC: D21F9/02
Filed: 1970-03-19
Abstract: 1303667 Paper tubes CENTRE TECHNIQUE DE L'INDUSTRIE DES PAPIERS CARTONS ET CELLULOSES 19 March 1970 [20 March 1969] 13300/70 Heading F2P [Also in Divisions D1 and D2] A tube of paper may be made by spraying pulp on to one or more wires 6 constrained to take the form of the internal surface of a chamber 10 curved in a direction transverse to the direction of travel of the wires from a nozzle 15 spaced from the surface. The nozzle may be of adjustable inclination and spin, as shown; a nozzle designed to eject a radial sheet (Fig. 3b, not shown); or a nozzle wherein expulsion of pulp through bent tubes causes rotation (Fig. 6, not shown). The water is sucked out of the pulp by vacuum in line 11, and excess pulp collected by funnel 12 may be recycled.
Patent GB-810292-A (GB)
Title: Improvements in or relating to ballcocks for domestic flushing cisterns, feed tanks and the like
IPC: F16K31/26
Filed: 1955-05-09
Abstract: 810,292. Valves. CRAIG, W. N. Aug. 3, 1956 [May 9, 1955], No. 13348/55. Class 135. In order to prevent syphoning from a domestic cistern or the like when the water supply is interrupted to a ballcock whose outlet pipe 8 discharges just above the base of the cistern, the float-controlled valve 3 admits water to the pipe 8 by way of a chamber 4 having an air vent passage 17 controlled by a valve 18 normally closed by the water pressure. If the supply is interrupted, e.g. by a frost stopcock which drains the rising main, the resulting suction opens the valve 18 to admit air to the chamber 4 and thus prevent syphoning. Baffles 7, 9 of circular section mounted in the pipe 8 serve to equalize pressure in the chamber 4 and assist a smooth and quiet flow. The valve 3 has a washer 5 and is controlled by a piston 10 in a stuffing box 11, the piston being actuated by a screw 12 adjustable in a lateral lug on the pivoted ball float arm 14.
Patent GB-956319-A (GB)
Title: Improvements in or relating to electromagnetic cores
Inventor: PARK KENNETH JOHN
IPC: H01F27/245
Filed: 1962-04-06
Abstract: 956,319. Transformers and inductors. GENERAL ELECTRIC CO. Ltd. March 15, 1963 [April 6, 1962], No. 13351/62. Heading H1T. A tubular core member 5 (Fig. 1) through which extends a coil carrying limb 6 (e.g. for discharge lamp choke/transformer combinations) has an unlaminated yoke piece 8 (Fig. 3) partially embracing the limb and fitting closely in the tubular member. The core member 5 (Fig. 1) may be of angle-form laminations 3, 4 and the outer laminations may be extended to form the casing 4 for the whole of the P-shaped central core 1, on the loop 2 of which transformer windings may be disposed. The shoulders 12, 13, 14 of the yoke, which may be of mild steel, engage the shoulders formed in the tubular member at the point where the outer laminations thereof extend beyond the inner laminations. A cap yoke at the end of the limb 6 remote from the yoke 8, may be formed of laminations and a further limb to complete the choke core may be separated from the core 6, by an air gap. Specifications 910,566 and 917,073 are referred to.
Patent GB-399908-A (GB)
Title: Improved means for preventing damage from back firing of motor car engines and for mixing the charge supply thereto
IPC: F02M1/00
Filed: 1932-05-10
Abstract: 399,908. Preventing backfiring; mixing charge. WILLOUGHBY, L. I., 29, St. Andrews Place, Listerhills, Bradford, Yorkshire. May 10, 1932, No. 13383. [Class 7 (ii).] A device for preventing backfiring and for mixing the charge comprises a pair of gauze discs G, G<1> secured in the induction pipe, one or both of the discs being convexed to form a chamber between them. Extra air may be admitted to this chamber by a valve V. A baffle in the form of a twisted metal strip may be arranged across the chamber. The whole device is placed in a fitting A adapted to be secured between flanges on the induction pipe.
Patent GB-725037-A (GB)
Title: Improvements in or relating to fire-extinguishing apparatus
IPC: A62C13/00
Filed: 1953-05-13
Abstract: 725,037. Fire-extinguishers. FOERSTNER, W., [trading as TOTAL KOMM.-GES., FOERSTNER & CO.]. May 13, 1953 [May 15, 1952], No. 13391/53. Class 47. In a fire-extinguisher in which powder is extracted from a container by carbon dioxide under pressure and is forced along a pipe 17 provided with a nozzle 18 having a manually operable spring-closed valve 19, the supply of carbon dioxide from a cylinder 6 is controlled by a spring-pressed valve 10 closable by the pressure in the container 1. The powder is extracted by an injector nozzle 16, and pressure is applied to the powder in the container by liquid carbon dioxide issuing from small pipes
Patent GB-131433-A (GB)
Title: Improvements in and relating to Boilers for Kitchen Ranges and the like.
Inventor: MCALPINE GEORGE
IPC: A47J27/21
Filed: 1918-08-17
Abstract: 131,433. McAlpine, G. Aug. 17, 1918. Block-form boilers. - A kitchen range or like boiler having flues above, below, and at the back is of tapered or wedge-shaped form so that it may be fitted in the setting with either face upwards, thus allowing the inlet and outlet connexions to be brought to either side. The side bricks c of the setting of the wedge-shaped boiler a have tapered recesses d on their inner faces to receive the sides of the boiler. Recesses e are formed in the upper edges of the side bricks to receive the top brick f, which is held in position by pins q projecting from the side bricks and engaging in slots h in the top brick. The under side of the top brick is inclined and so shaped that the flue above the boiler has an enlarged front opening.
Patent GB-581036-A (GB)
Title: Improvements in or relating to the electrodeposition of tin
IPC: C25D3/30
Filed: 1944-07-13
Abstract: 581,036. Electrodeposition of tin. IMPERIAL CHEMICAL INDUSTRIES, Ltd. July 13, 1944, No. 13404. Convention date, July 13, 1943. [Class 41] An electrolyte for the deposition of tin consists of a solution of a stannous salt or compound and the thiocyanate of an alkali metal or ammonium. The ferrocyanide or ferricyanide of an alkali metal or ammonium may also be addd. The thiocyanate may be added to known electrolvtes in which the tin is present as the chloride, sulphate, fluoride, phenol sulphonate or other stannous salts of sulphonic acids together with hydrofluoric, hydrochloric, sulphuric and aromatic sulphonic acids. In an example the electrolyte comprises stannous chloride 75 grams per litre, sodium thiocyanate 0.25 gram per litre, potassium ferricyanide 0.25 gram per litre, together with sodium chloride, fluoride and bifluoride, hydrochloric acid, Schaeffer's salt and a polyethylene oxide of molecular weight about 1,500 known as carbowax. The pH value of the electrolyte is 2.5. Another example comprises a solution of stannous sulphate, sodium thiocyanate, potassium ferrocyanide, sodium sulphate, fluoride and bifluoride and a small quantity of beta naphthol ethylene oxide. A dry composition to be dissolved in water may comprise 66 per cent. of stannous chloride, 33 per cent. of sodium fluoride, 0.5 per cent. each of sodium thiocyanate and potassium ferricyanide. The pH value of the solution is adjusted to 2.5 with hydrochloric acid. If the plating bath contains copper or iron the amounts of thiocyanate and ferrocyanide or ferricyanide are increased. Specification 581,034 is referred to.
Patent GB-135009-A (GB)
IPC: B25G3/02
Abstract: 135,009. Dixon, I. Dec. 16. 1918. Strengthened handles; fixing by sockets.-The handles or shafts of picks, hammers, axes, and the like are strengthened by straight parallel extensions, which extend along about half or three quarters of the shaft from the flared sheaths or sleeves which fit the eyes of the tools. As shown, the taper socket pieces A which embrace the end of the handle B, and are inserted in the eye of the pick &c., are formed with parallel extensions A' which are fixed to the handle by rivets D. The socket portion A may be in two separate parts, as shown, or in one piece, and may be formed from sheet metal. An expanding- wedge E may be used for fixing the handle in the eye of the @, or it may be driven in tightly without wedging.
Patent GB-125627-A (GB)
Title: A Model Artillery Range for Instructional Purposes.
Inventor: POWER RICHARD FITZ
IPC: F41G3/28
Filed: 1916-09-23
Abstract: 125,627. Power, R. F. Sept. 23, 1916. Teaching flash-spotting.-Consists of a model artillery range especially intended for training observers for service on aircraft in locating the position of gun flashes and shell bursts. The apparatus comprises a fabric screen of open mesh, having a map depicted thereon, mounted on a raised horizontal frame, and a movable member under the screen carrying a lamp and a smokeproducing device, so that a flash and a puff of smoke can be produced by the instructor at any point on the screen. In the construction shown in Figs. 1 and 2, the screen E is mounted on a frame D mounted to rotate on the table A. The device for producing the shell-burst comprises a movable frame F carrying two crankarms K, H geared to move in unison. The front arm K carries a series of lamps P and smoke-tubes p, and the second arm H the corresponding switches and cocks. Each smoke-tube p is connected to a smoke reservoir S, and touches the underside of the fabric E so that the smoke will pass through. In operation, the frame F is moved by the instructor until the central lamp is under the selected target; the arm K can then be rotated and any one of the lamps and smoke-tubes operated to produce the shell-burst at a known distance and direction from the target, according to the clock code. These bursts are observed by the learner and their position signalled to the instructor. In a modification, the smoke is produced by an electric resistance wire passing through an oil wick. A representation of a ground station may be provided, comprising, in the construction shown in Figs. 1 and 2, a screen C having a rotary table e for exhibiting signs, apparatus for producing the flash and smoke of guns, and signal-receiving apparatus. For giving practice in signalling contact patrol positions, a number of lamps are carried on separate slides 45, Fig. 11, so that the lamps can be arranged to follow the line of a trench or other feature. A fan to create a draught across the screen may be provided. When observing from the ground, small screens representing hills and buildings may be stood on the map. The screen may be blank and have the map or other representation projected on to it by means of a magic lantern Q, Fig. 1, and reflector Q<1>.
Patent GB-701535-A (GB)
Title: Improvements in or relating to the preparation of vitamin b
Inventor: COOLEY GEORGE
IPC: A61K31/00
Filed: 1951-06-07
Abstract: The invention comprises an amine cobalichrome and its preparation by reacting an amine, e.g. aliphatic amines containing up to 5 carbon atoms with a member of the vitamin  B12 group, e.g. vitamin B12b. Vitamin B12 may be prepared from said complex by treatment with a soluble cyanide, e.g. sodium, potassium or ammonium cyanide or anhydrous or aqueous hydrocyanic acid.  Specification 694,797 is referred to.
Patent GB-901004-A (GB)
Title: Improvements in and relating to gas bearings
Inventor: FROST ALAN
IPC: F16C33/12
Filed: 1960-04-19
Abstract: 901,004. Bearings. BRISTOL SIDDELEY ENGINES Ltd. April 4, 1961 [April 19, 1960], No. 13585/60. Drawings to Specification. Class 12 (1). In a fluid bearing having a shaft and a journal made from mild steel, the shaft is chromiumplated and the journal is coated by an alloy comprising 66% cobalt, 26% chromium, 5% tungsten, 1% carbon and 2% impurities; said alloy being flame-sprayed on to the journal and fused. Alternatively, the journal is chromium-plated and the shaft coated &c. by the alloy. The fusing process eliminates surface porosity.
Patent GB-112764-A (GB)
Title: An Improved Ratchet Wrench or Brace.
Inventor: SEDGLEY REGINALD FRANCIS
IPC: B25B13/46
Filed: 1917-09-21
Abstract: 112,764. Sedgley, R. F. Jan. 18, 1917, [Convention date]. Ratchet braces. - In a brace of the kind in which a double pawl is provided so that the brace can be operated in either direction, the pawl 7 is held in operative engagement with the ratchet 3 by a spring 13 mounted in a slot 14 and fixed at one end to the handle 1, its free end, which is preferablv formed into a loop 17, bearing against either of the converging abutments 11, 12 on the pawl. At every reversal of the pawl, the spring rises and falls in the slot 14 and automatically clears the slot of dirt. The ratchet 3 is secured to a hub 2 having a polygonal part 4 on which is placed the tool, a spring pressed ball 5 being provided to retain the tool thereon.
Patent GB-985786-A (GB)
Title: Improvements in or relating to single-stage printing plate etching apparatus
Inventor: STIEHLER HERMANN
IPC: C23F1/08
Filed: 1962-04-09
Abstract: 985,786. Etching. INSTITUTE FUR GRAFISHE TECHNIK. April 9, 1962, No. 13654/62. Heading B6J. A single-stage etching apparatus for printing plates comprises a housing 1 enclosing an etching chamber 2, a carriage 11 slidable with respect to the housing 1 into and out of first and second positions respectively inside and outside the etching chamber 2, and a plate-clamping device 10 rotatably mounted on the carriage 11. A plate 9 to be etched is carried by the plate-clamping device 10 which is rotated by means of a spindle 13 and friction wheels 14, 15 from a motor 18. The friction wheel 15 is mounted on a shaft 16 which is axially displaceable by manual operation of a control linkage 17 to allow disengagement of the wheels 14, 15. As the clamping device 10 and plate 9 are rotated in the chamber 2 they are sprayed with etching fluid by banks of nozzles 4 to which the fluid is delivered through a pipe 6 by a pump 5 from a reservoir 7, the pump also being powered by the motor 18. The plate can be inspected during etching through a glass plate 3 or a plate of transparent synthetic plastic material mounted in the front of the housing 1. The carriage 11 is slidable in guide rails 12 and is secured to an end wall 20 of the housing 1. The parts 10, 11, 20 can be withdrawn together to a position indicated at 23 in Fig. 2, for mounting, removing or otherwise treating the plate 9, at which position the plate 9 may be rinsed with water sprayed from nozzles 24.
Patent GB-1349006-A (GB)
Title: Carburettors for internal combustion engines
IPC: F02M7/12
Filed: 1971-05-07
Abstract: 1349006 Spray carburettors LES USINES LAPRADE S A and P GELE 7 May 1971 [8 May 1970 30 Dec 1970] 13705/71 Heading F1B A fuel and air supply chamber 1e communicates with the mixing chamber 1d between the main  throttle valve 2 and an air valve 4, controlled in response to the pressure in the mixing chamber, through a tube 9, a channel 8 opening to the upper part of the supply chamber and a tube or tubes 10  with radial openings 10a opening to the lower part of the supply chamber. Fuel flow through a jet 7,  opening to the chamber 1e, is controlled by a needle valve 5 coupled to the valve 4. An air inlet port 11a, communicating with the chamber 1e, is controlled by a valve 12 operable by a barometric bellows 14 and an actuator 25. The actuator 25 has a diaphragm, connected by a rod 14a to the bellows 14, which is subject to the suction downstream of the valve 2 or atmospheric pressure under the control of an electromagnetically-  operable valve 30. The valve 30 is controlled  by a thermostat 34 responsive to engine coolant  temperature and a relay 35 and switch 36 responsive to engine speed and main throttle valve position, respectively. Below a predetermined temperature or above a predetermined speed with the valve 2 substantially closed the actuator diaphragm is subject to suction and the valve 12 reduces the flow cross-section of the port 11a. The actuator 25 is movable manually, against the bias of the spring washers 27, by a rod 28 to close the port 11a for starting. A diaphragm 17 subject to the suction downstream of the valve 2, operates a valve 16 above a predetermined suction to open an air inlet channel if communicating with the chamber 1e.