baber/WOPTO huggingface dataset:
Patent GB-837253-A (GB)
Title: Vacuum brake arrangement for rail vehicles
IPC: B60T13/46
Filed: 1958-06-03
Abstract: 837,253. Vacuum braking systems. KNORRBREMSE G.m.b.H. June 3, 1958 [June 4, 1957], No. 17735/58. Class 103 (1). A vacuum braking system for rail vehicles includes a driver's valve controlling the degree of vacuum in a controf system which operates a relay valve controlling the connection of the vacuum train pipe to a vacuum source and to atmosphere. Driver's valves 3 control the vacuum in pipe 5, from pipe 7, which acts on the upper sides of linked pistons 20, 22 in relay valve 1, the lower sides of the pistons being connected to atmosphere and to the train pipe 11, 13, respectively. With the valve 3 at " release " and " go," the pipes 5 and 7 are connected and the pistons 20, 22 raised to connect train pipe with vacuum through valves 28, 30 and pipe 9. In the braking position, vacuum is reduced in pipe 5 and pistons 20, 22 lowered to close valve 28, 30 and open valve 34, 36 to admit atmospheric air to the train pipe 13 until the pressure on pistons 20, 22 is balanced when they are raised to close both valves 28, 30 and 34, 36. In the closed position the driver's valve 3 separates the pipe 5 from vacuum and atmosphere, so maintaining the pressure present in the train pipe at that time. The pressure in the train pipe controls a vacuum operated compressed air valve 15 for controlling the admission of compressed air from pipe 17 to the brake cylinders.
Patent GB-603100-A (GB)
Title: Profiled cutter grinding machine
IPC: B24B3/08
Filed: 1945-07-12
Abstract: 603,100. Grinding-machines. WEISS, A. July 12, 1945, No. 17825. [Class 60] In a machine for grinding profiled cutters, the cutter 12 is mounted in a holder 10 which is carried on arms 8 jointed to arms 7 which are pivoted at 6 to the machine bed 1. The pivots and joints are all provided with ball bearings so that the holder 10 may be moved freely and universally in a horizontal plane relatively to the grinding-wheel 4, the application of the work to the wheel being controlled. by a templet 13 on the holder 10 abutting against a peg 14 attached to the bed 1. The templet 13 is secured to a member adjustably slidable by screw means in the holder 10, the slide-ways having slight side clearance to permit the slide to be angularly displaced to bring the templet into true parallelism with the axis of the work. This displacement is effected by a differential screw means which abuts against the end of the slide remote from the templet, and an opposed locking-screw, the movement being by pivoting about a pin carried by the holder 10 at the other end of the slide, the pin being journalled in a guide block slidable in a central slot in the slide. The angle of relief of the cutting-edge is determined, as shown in Fig. 8, by the height at which the edge 56 is supported by a stationary adjustable pin 57, and the angle is kept constant by moving the axis of the grinding-wheel to compensate for the decrease in size of the wheel due to wear. The displacement of the axis consequent on the size difference of the wheel at 4 and 4' is shown. The wheel is journalled in a slide 38 which is moved towards and away from the work bv a hand wheel 39 on a screwed shaft. The slide is prevented from turning by a screw 40 engaging a groove 41 in the slide which is housed in the head 37 of a pedestal 36. The height of the wheel axis is regulated by a hand wheel 48 on a screwed shaft revoluble, but axially fixed, in a lug 47 of the head 37. The screwed shaft is threaded in a bore of a pillar 45 secured to the bed 1, and the head 37 is clamped to the pillar, when adjustment has been made, by a screw 50. At the side of the head 37 opposite to the screwed shaft a vertical rod is attached to the bed 1 around which an arm is pivoted. The tip of the arm engages under the cutting-edge 56 to determine its height. The arm carries a pointer which reads on a scale carried on the slide 38 and calibrated according to the angle of relief, so that by manipulation of the wheels 48, 39 the said angle may be kept constant.
Patent GB-265856-A (GB)
Title: Improvements in and relating to filters
IPC: B01D29/15
Filed: 1926-07-16
Abstract: 265,856. Fox, C. E., and Fox, W. July 16, 1926. Strainers comprising grids or gratings.-A wire 8, Fig. 1, is wound spirally on a perforated telescopic or - two-part body 6, the ends of the wire being permanently fixed to the head and the lower end respectively. The head is formed with an outlet nozzle 4 passing through a gland in the cover plate 2 of the container 1, and the lower end of the body is detachably secured to the bottom of the container by means of A screw drain plug 5. Liquid enters through a nozzle 3. The arrangement is such that, on lifting the upper part, the coil opens like a spring to facilitate cleaning by reverse flow. In the modified arrangement shown in Fig. 2, a single-piece tube 6 is formed exteriorly with a knuckle-thread 11 and gauze 12 is placed between the thread and the turns of the wire 8, the liquid passing edgewise through the gauze to the perforations 7 of the tube.
Patent GB-108264-A (GB)
Title: Improvements in or appertaining to Automatic Weft Replenishing Looms.
IPC: D03D45/20
Filed: 1916-12-13
Abstract: 108,264. British Northrop Loom Co., (Northrop Loom Co.). Dec. 13, 1916. Shuttles, changing bobbins in, automatically; checking shuttles and pickers.-When the shuttle is not properly positioned for weft-replenishment, a deflector P, Fig. 3, is moved over the bunter I and the transferrer dog H engages an inclined surface formed by the rearwardly and downwardly inclined surfaces d, f, e of the deflector, the bunter, and a projection R on the bunter respectively, so that the transferrer dog is turned about its pivot g instead of operating the transferrer G. The deflector P has a pin-andslot connexion c, Q, Fig. 1, with the hunter and is connected to a rod 0 pivoted to a lever M controlled by a spring S on a rod a. The incoming shuttle forces the picker K against a projection N on the lever M and moves the deflector to its extreme outer position so that it is not struck by the transferrer dog.
Patent GB-596000-A (GB)
Title: Improvements in the packing of pistons
IPC: F16J9/06
Filed: 1945-07-13
Abstract: 596,000. Piston packings. DENHOLM, R.J. July 13, 1945, No. 17911. [Class 122 (i)] Piston packing consists of an outer ring of soft metal 4 and an inner ring 5 of resilient material located in a piston-ring groove of relatively deep incision, a spring 2 being provided between the inside surface of the resilient ring and the bottom of the piston-ring groove. The resilient ring may carry a V- shaped groove on its inside to accommodate spring. In a further form, a wide outer ring is supported by two independent resilient rings and springs as above.
Patent GB-722628-A (GB)
Title: Improvements in glass fiber filled alkyd resins
IPC: C08F4/28
Filed: 1952-07-15
Abstract: A moulding composition comprises an unsaturated alkyd resin, optionally containing 2 to 55 per cent of a copolymerizable liquid monomer, a catalyst, an inorganic filler and glass fibres having a substantially unexcoriated surface and constituting a substantial proportion of the total fillers.  The resins may be obtained from maleic, fumaric, glutaconic, itaconic, mesaconic, citraconic, allylmalonic, allylsuccinic and xeronic acids, or acids such as malic and citric which on heating give unsaturated dibasic acids, and dihydric alcohols, such as ethylene, diethylene, triethylene, trimethylene and propylene glycols and glycerol monoethyl ester, which may also contain up to 5 mol. per cent of polyhydric alcohols such as glycerol, pentaerythritol and mannitol. Monohydric alcohols and saturated dibasic acids may also be used to modify the resin. Liquid monomers specified are diallyl phthalate, diallyl phenyl phosphonate and ethylene glycol dimethacrylate.  Inorganic pigments specified are clay, talc, mica and anthophyllite and catalysts listed are benzoyl, phthalyl and acetyl-benzoyl peroxides, ozonides of terpenes and diisobutylene, per-halides and per-acids.  The glass fibres are preferably of lengths 1/4 inch to 2 inches and may be coated with a water-repellant methacrylato chromic chloride complex; lubricants, such as starch binders, which may contain starch, gelatin, vegetable oil and a suitable emulsifier; polyvinyl acetate or silicone resins such as allyl or diallyl silanol or allyl trichlorosilane.  A base of a metal of group 2 and of molecular weight between 10 and 220 may be present in from 2 to 20 per cent and those listed are the oxides, hydroxides, borates, carbonates, methoxides and ethoxides of magnesium, calcium, zinc, strontium, cadmium, barium and mercury.  The compositions are prepared by adding to the binder and filler a solvent, such as methylene chloride, chloroform, acetone, benzene or methyl propyl ketone, in sufficient quantity to produce a thin slurry.  The catalyst is added and the glass fibres mixed in slowly without crushing or beating and the slurry is finally dried. Alternatively the slurry may be absorbed on a mat of glass fibres or a continuous strand may be drawn through a resin slurry and the dried strand chopped into suitable lengths.
Patent GB-1215044-A (GB)
Title: Improvements in or relating to projection systems
IPC: G03B21/00
Filed: 1968-04-16
Abstract: 1,215,044. Optical projection systems. ZEISS IKON A.G. April 16, 1968 [May 10, 1967], No. 17974/68. Heading G2A. An optical projector 1 has beam splitting mirrors 5, 6 in front of the projection lens 2 whereby two projected beams of the same picture content are thrown on to separate screens 3, 4, the mirrors being placed at the exit pupil position of the objective 2. If the mirrors are separated, as shown, a third beam is thrown on to a screen 8. In another form of the three-screen system, partreflecting mirrors and anamorphotic attachments are used. The mirrors and supplementary lenses may be formed as a single unit for attachment to a normal projector objective.
Patent GB-220295-A (GB)
Title: Resilient shock absorption device for tractive haulage or like connections
IPC: B60D1/50
Filed: 1924-07-28
Abstract: 220,295. Munro, J. A. Aug. 6, 1923, [Convention date]. Hooks, automatic release.- A hook-coupling for traction haulage and like purposes, adapted to absorb shocks in the draught, chain and to be released automatically therefrom when the pull exceeds a predetermined amount, comprises two yoke rods 2, 5 inserted in opposite directions through a helical spring 1 and engaging the ends of the spring. Under tension, the spring becomes compressed between the bent ends 4, 7 of the yokes, and the tail 12 of the hook-coupling member 13 moves relatively to the eye 9 which is adjusted to such a position along the upturned end 8 of the yokemember 5 that the hook is free to swing and release the load when the pull exceeds a certain value.
Patent GB-1242946-A (GB)
Title: Improvements in and relating to electro-slag remelting of metals
IPC: C22B9/18
Filed: 1969-04-08
Abstract: 1,242,946. Electrodes for electro-slag remelting. BOHLER & CO. A.G. GEB. 8 April, 1969 [8 April, 1968; 24 Sept., 1968], No. 18030/69. Heading H5H. [Also in Division H2] Electro-slag remelting or refining apparatus comprises a water-cooled mould 11 resting on a copper base 10, the metal billet 9 to be remelted being arranged concentrically in the mould 11, an auxiliary electrode 15, consisting of a number of rods 15<SP>1</SP> secured to a ring 16 surrounding the billet 9, being provided to maintain the slag layer 12 heated whilst a billet is being changed and also to enhance the efficiency of the refining process.
Patent GB-1000665-A (GB)
Title: A method of bonding
IPC: C09J5/04
Filed: 1962-05-10
Abstract: An a -cyanoacrylate adhesive which comprises one or more a -cyanoacrylate monomers <FORM:1000665/C3/1> where R1 is an alkyl radical having 1 to 16 carbon atoms is employed to bond surfaces of articles, there being present at least one epoxide or diepoxide which acts as an activator.  The epoxide or diepoxide is applied either directly or as a solution in an inert volatile solvent, the concentration of epoxide or diepoxide in the solution being 1 to 100% based on the total weight of the solution, to at least one of the surfaces to be bonded and the a -cyanoacrylate adhesive is then applied to at least one of the surfaces and the surfaces are then brought into bondings contact.  Preferably, the epoxide compounds have one of the general formulae <FORM:1000665/C3/2> or <FORM:1000665/C3/3> where R1 is hydrogen, alkyl, haloalkyl, aryl, alicyclic or a combination thereof; R2 is an alkylene, alkylidene or a substituted derivative thereof and R3 is an alkylene or substituted alkylene.  Preferably up to 25% by weight of the total adhesive composition is comprised of a polymeric thickener such as a polyacrylate, polymethacrylate or cellulose ester.  A plasticizer may also be added.  In the examples, various surfaces are bonded together, the cyanoacrylate adhesive comprising methyl a -cyanoacrylate, polymethylmethacrylate and dimethyl sebacate and the epoxide being selected from butadiene monoxide; limonene monoxide; styrene oxide; 3,4-epoxy-6-methylcyclohexylmethyl - 3,4 - epoxy - 6 - methylcyclohexane carboxylate; octylene oxide and the bisglycidyl ether of 4,4-isopropylidene-bis-phenol.
Patent GB-255866-A (GB)
Title: Improvements in heating method and apparatus
IPC: F23C99/00
Filed: 1926-07-19
Abstract: 255,866. Puening, F. July 24, 1925, [Convention date]. Applying heat of combustion, methods of.-In apparatus for heating retorts, leers, and the like, of the kind in which a body of heating-gases is passed alternately in opposite directions through a heating-chamber by a movable piston, means are provided for cooling the piston internally and externally. Fig. 1 shows the invention applied to a piston reciprocated vertically by a rod 12 in a chamber 10 and built up of thin metal plates 23 secured at their inner ends by bolts 17 to a chamber 15 welded to the hollow rod 25, and at their outer ends to members 22 welded to pipe 18 which is perforated at 19 and protected on the outer side by insulating material 20. The chamber 15 and pipe 18 are connected by tubes 14 arranged in the manner of spokes and serving to conduct the cooling fluid, which is supplied at 27 and passes down the hollow rod 25 into the chamber 15, to the pipe 18 from which it escapes through the apertures 19 to the interior of the piston; apertures 24 are provided in the plates 23 to allow some of the fluid to pass to the exterior of the piston. Fig. 4 shows a modification in which the cooling medium is supplied from below to the hollow piston-rod 25a, the latter communicating with a valved chamber 30 which functions as a piston within a cylinder 31 to which the fluid is supplied by branches 33, 34, closed by flap valves. The invention is shown in Fig. 5 applied to an oscillating piston built up of thin plates perforated at 51, the cooling fluid, in this case, being supplied to the interior of the piston from the hollow shaft 39 which communicates through internal pipes 40 with a header 42 having apertures 43 for the passage of the fluid. Specifications 208,170 and 210,758 are referred to.
Patent GB-1329410-A (GB)
Title: Control valves for controlling the pressure medium of power- assisted steering gear
IPC: B62D5/08
Filed: 1972-04-19
Abstract: 1329410 Power assisted steering mechanisms ZAHNRADFABRIK FRIEDRICHSHAFEN AG 19 April 1972 [29 April 1971] 18120/72 Heading B7H A power assisted steering-gear control valve comprises damping pistons 27, 28 each slidably arranged in axial bores in reaction pistons 23, 24, fixed in relation to valve cylinder 19, and associated outer and inner damping chambers, e.g. 29, 33 connected with a feed chamber 3 and with an annular groove 10 of the valve piston 2 respectively via choke bores 31, 35 which lead into outer and inner annular chambers 47, 49. In the central position of valve piston 2 annular grooves 10, 11 are connected with feed chambers 3 4 respectively and with the central return groove 7. Holes 45, 46 in valve cylinder 9 connect annular grooves 10, 11 with cylinder chambers 14, 15 of servomotor 16. Piston 17 together with steering gear housing 18 forms the servomotor 16. As piston 2 is moved out by pin 20 according to the rotation of a steering wheel (not shown) feed chamber 3 is placed into communication via groove 10, bore 45 and pipe 12 with cylinder chamber 14 and the other chamber 15 is connected via pipe 13 with central return groove 7 via bore 46. The outer damping chamber 29 of reaction piston 23 is connected via choke bore 31 and annular chamber 47 with feed chamber 3, and the inner damping chamber 33 is connected via annular chamber 49, and choke bore 35 with feed chamber 3. The choking action of choke bores 31, 35 and annular chambers 47, 49 provide damping to the movement of valve piston 2. Outer and inner damping chambers 30, 34 are connected with feed chamber 4 and return groove 7 respectively, thus pressure medium which is sucked in as a result of the enlargement of chambers 30, 34 can flow therein without any increased resistance. When the valve piston 2 is moved in the opposite direction the converse effects are obtained. The outer annular chambers 47, 48 advantageously have a smaller radial dimension than the inner annular chambers 49, 50.
Patent GB-596034-A (GB)
Title: Improvements relating to the production of unsaturated carboxylic acids
IPC: C07C51/25
Filed: 1945-07-16
Abstract: Unsaturated carboxylic acids are produced by treating their corresponding aldehydes in the liquid phase with a gas containing oxygen in the presence of a catalyst consisting of the salts of unsaturated fatty acids containing more than ten carbon atoms, e.g. oleic acid, with a plurality of multivalent metals, e.g. lead, manganese and cobalt.  In the preparation of unsaturated acids, such as acrylic acid, methacrylic acid and crotonic acid, which possess a strong tendency to undergo polymerization, it is advantageous to use oxygen or a current of air enriched by oxygen with a catalyst containing a lead salt, and not allowing the temperature to rise above 35 DEG  C.  When the aldehyde is a solid or a liquid of high viscosity, the oxidation may be carried out in an inert solvent, e.g. esters such as ethyl acetate.  A catalyst consisting of a mixture of lead, manganese and cobalt oleates is used in examples in which cinnamic acid, oenanthylidene-oenanthic acid, crotonic acid, acrylic acid and a -ethyl hexenoic acid are obtained by the oxidation of their corresponding aldehydes. Specifications 550,134 and 560,166 are referred to.
Patent GB-896732-A (GB)
Title: Improvements in or relating to roofs each having a fixed part and a foldable part
IPC: B60J7/12
Filed: 1960-05-23
Abstract: 896,732 Folding roofs. GOLDE, G.m.b.H., H. T., GOLDE, H., and LOFFLER, M. [trading as GOLDE G.m.b.H. CO. KOMM.- GES, H. T.] May 23, 1960 [May 22, 1959], No. 18134/60. Class 108(1). A reinforced angle 5, 6 is secured as by welding to the frame member 1 adjacent the rear edge of the roof opening K and the flexible roof L is retained by the bar 10 which is secured by bolts 9 to the flange 6 of the angle. The flange 5 also has tabs which are pressed over to retain the bar 13 to which the interior trim 12 is secured.
Patent GB-424930-A (GB)
Title: Method of forming an electrode or a contact surface on an electric resistance of semi-conducting materials
IPC: H01C17/28
Filed: 1934-06-19
Abstract: Conducting surfaces are formed on resistances of sintered semi-conducting material, such as oxides of chromium, manganese, or uranium, by applying a paste containing the electrode metal before the resistance is sintered.  The paste consists of glue, collodion, paraffin, &c. containing iron, cobalt, nickel, copper, silver, molybdenum, or tungsten in metallic form or as an easily reducible compound.  The resistance may be partially sintered before applying the paste, after which the full sintering temperature is applied.
Patent GB-348919-A (GB)
Title: Improvements in and relating to the electro deposition of metals and alloys of the platinum group
IPC: C25D3/56
Filed: 1930-06-13
Abstract: 348,919. Electrolysis. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Baker & Co., Inc. ; 54, Austin Street, Newark, New Jersey, U.S.A.) June 13, 1930, No. 18147. [Class 41.] Platinum, palladium and rhodium and their alloys with one another are deposited from solutions of their ammino-nitrites, rendered alkaline by excess of ammonia. The electrolyte may be prepared by adding excess of sodium nitrite to a solution of a suitable salt such as chloro-platinic acid, palladous chloride or rhodium trichloride and heating until a colour change takes place after which ammonia is added to the hot solution. When dilute solutions are employed the amminonitrate remains in solution probably as tetramminonitrate. When concentrated solutions are employed a diammino-nitrate is precipitated; this is filtered off, washed and dried, and may be dissolved in hot dilute ammonia. A solution prepared in either way may be used as electrolyte, but in the latter case the addition of a conducting salt such as ammonium nitrate or ammonium sulphate is necessary. In the former case the spent electrolyte should be regenerated by addition of the precipitated salt to prevent excessive accumulation of alkali metal chloride. Detailed examples of the preparation of a platinum bath in both ways are given and also of a bath for depositing an alloy containing 90 per cent. platinum and 10 per cent rhodium. Deposition is effected from a hot solution using a voltage of 2-6. Insoluble anodes of platinum or other precious metal or of graphite are employed. The electrolyte may contain ¢-10 oz. of plating salt per gallon.
Patent GB-863414-A (GB)
Title: Improvements in or relating to electrical components
IPC: H01B3/44
Filed: 1957-06-07
Abstract: 863,414. Polypropylene insulated electrical components. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. June 7, 1957 [June 13, 1956], No. 18155/57. Addition to 810,023. Class 2(6). An electrical component has as insulating material, crystalline linear polypropylene alone or in admixture with up to 40% of amorphous linear polypropylene. The polymer may be prepared as described in the parent Specificaticn and Specification 828,791 and may be used in components such as insulated wire, condensers, valve holders, insulating panels, switches, plugs and cathode ray tubes. High molecular weight polymer (>1,000,000) may first be degraded as described in Specification 835,038. In the production of the electrical components the insulation may be applied to the conductor by means of solution or dispersion in organic media, by extrusion, by machining to shape, or by the application of filaments, strips, sheets, &c. (optionally stretched) which are subsequently fuzed together by heating. In examples dibutyltin-dibutyl mercaptide and triphenyl phosphite are used as polymer stabilizers.
Patent GB-1417522-A (GB)
Title: Process for producing a model aircraft
IPC: B29C44/44
Filed: 1973-04-16
Abstract: 1417522 Toy aeroplanes CEMOSS EQUIPMENT LTD 19 March 1974 [16 April 1973] 18155/73 Heading A6S [Also in Division B5] A toy aeroplane moulded from expanded polystyrene has wings 6 of greater density than the body 4; for examples wings of density 3-4 pcf and a body of 2 pcf. The aeroplane is provided during moulding with a slit into which a cardboard tail piece may be inserted, and the tail piece may be movable longitudinally to adjust the flight balance. A projection 18 is provided to facilitate launching of the areoplane with an elastic band.