baber/WOPTO huggingface dataset:
Patent GB-252777-A (GB)
Title: Improvements in and in the method of manufacturing building units
IPC: B28B3/26
Filed: 1925-03-03
Abstract: 252,777. Barnes. J. E. L., (National Lime- Association). March 3, 1925. Extrusion machines; processes.--Building units consisting of a mixture containing lime, cement, gypsum or like calcareous binding agent areshaped by extrusion in a machine having the die &c. formed of or coated with non-ferrous metal, e.g. copper, tin, nickel, aluminium, or alloys thereof. Heat may be applied during extrusion.
Patent GB-605862-A (GB)
Title: Improvements in or relating to valve assemblies particularly for pumps
IPC: F04C14/26
Filed: 1944-03-31
Abstract: 605,862. Relief valves. THOMPSON PRODUCTS, Inc. March 31, 1944, No. 6017. Convention date, March 26, 1943. [Class 135] A combined relief and byepass valve assembly for pumps especially fuel pumps for aircraft, comprises an open-ended sleeve 50 formed intermediate its ends with a wall 50c having an external valve face 50d and an internal valve seat 50e for the byepass valve 55. In Fig. 2, the assembly is shown in a positive displacement type of pump having an eccentric rotor 20 with slidable vanes 21 operating in a sleeve 19 arranged between inlet and discharge chambers 17, 18 in a pump casing 11. The valve assembly is arranged in a casing 12 between the pump casing 11 and a spring casing 13, the three casings being secured together by bolts 14. A diaphragm 16 of synthetic rubber or fabric impregnated with synthetic rubber is clamped between the casings 12 and 13. The chambers 17, 18 connect respectively with passages 29, 31 which in turn open through respective ports 30, 32 into counter-bores 24, 26 in the valve casing 12. A seat 25 for relief valve face 50d is formed between the bores 24, 26. The valve sleeve 50 is guided at its upper end by a flange 50a working in the bore 24 and at its lower end by cylindrical faces 50g on legs 50f working in a further bore 27. Ports 51 are formed in the sleeve 50 below the flange 50a to permit access of fluid to the interior of the sleeve 50. The byepass valve 55 like the relief valve 50 may be made of metal or of plastic material and has on its upper face a resilient washer 58 of fabric impregnated with synthetic rubber held in place by a dished metal spring washer 59 itself retained by a cotter-pin 60 passing through a boss 55b on the byepass valve. The byepass valve is loaded by a light spring 57 abutting a shoulder 28a on the valve casing. The relief valve 50 is loaded by a coil spring 41 having an upper retainer 39 adjustable on a screw 36 and a lower retainer 42. The latter has a boss 42a pressing into a complementary depression 43a in a washer 43 and thence through the diaphragm 16 into a similar depression in an inverted cup member 53 resting on shoulders 50h on the relief valve. The spring retainer 39 is prevented from rotating by a key 40. The screw 36 has a flange 36b which after adjustment of the screw is clamped against the underside of the casing 13 by a nut 38 threaded on a wider part 36c of the spindle. The upper side of the diaphragm 16 is subject to the pressure of the ambient air or to the pressure in the engine intake manifold through an aperture in a boss 13b. A washer 33 determines the effective area of the diaphragm.
Patent GB-139889-A (GB)
Title: Improved step-by-step mechanism for electric motor starters
IPC: F02N99/00
Filed: 1919-03-11
Abstract: 139,889. Railing, A. H., Garrard, C. C., and Wilson, W. March 11, 1919. Controllers, retarding-mechanism for. - In a step-by step mechanism for a starter, an escapement detent E, pivoted on the end of the arm D and subject to restraint by a spring F, has two pallet-pieces E<1>, E<2> which engage a series of pegs A during the forward movement of the handle. During the movement, the upper pallet E<1> engages a peg, and the detent E swings on its pivot until the lower pallet E<2> strikes the peg. A slight backward movement of the handle releases the pressure on the lower pallet and allows the detent E to occupy its normal position and so escape the peg.
Patent GB-911562-A (GB)
Title: Means to reduce piston ring groove wear and minimize cylinder scuffing in internal combustion engines
IPC: F16J9/22
Filed: 1961-02-20
Abstract: 911,562. Cylinders. CATERPILLAR TRACTOR CO. Feb. 20, 1961 [March 11, 1960], No. 6111/61. Class 7(2) [Also in Group XXVI] A cylinder 11 has depressions 26 which register with and span one ring only 13 of several expansible piston rings when the piston 10 is in the b.d.c. position, to equalise pressure trapped in the zones 21, 22 on opposite sides of that ring. During the exhaust stroke, the equalised pressure in zones 21, 22 urges lubricant upwardly between the compression ring 12, mounted in a hard metal insert 16, and the inner wall of the cylinder 11. Pressure in the space below piston ring 14 is vented through an oil control ring 15 and ducts 24 to the hollow interior of piston 11. Specification 839,447 is referred to.
Patent GB-1352663-A (GB)
Title: Smoking product with improved flavour and method of making it
IPC: A24B15/32
Filed: 1972-02-10
Abstract: 1352663 Tobacco compositions KIMBERLY-CLARK CORP 10 Feb 1972 [22 March 1971] 6201/72 Heading A2C A tobacco composition which includes a substantial proportion of tobacco stem material and from none to a small proportion of non- tobacco cellulosic material, further includes 1.0 to 3.0% of urea and 1.0 to 4.0% of saturated fatty acid having a carbon chain length of 16 to 18, both by weight of the combined stem and non-tobacco cellulosic material. In the examples the potassium soaps of commercially available palmitic and stearic acids, containing specified amounts of stearic and palmitic acids respectively and other fatty acids as impurities, are used. The urea and saturated acids may be incorporated into reconstituted tobacco sheets made by a paper-making process of the kind in which an extract obtained from the tobacco ingredients before paper-making is concentrated and subsequently applied to the formed paper-like web, either by incorporation in the concentrated extract or by separate application to the web before drying. In one example, wood fibre in the form of unbleached craft pulp is included in the reconstituted tobacco composition. The urea and saturated acids may also be applied directly to natural tobacco stem material or blends of such material with shredded leaf tobacco.
Patent GB-1426682-A (GB)
Title: Rotary piston engines
IPC: F01C21/18
Filed: 1974-02-11
Abstract: 1426682 Rotary piston engines A BRULFERT and AG HOSS 11 Feb 1974 06222/74 Heading F1F A rotary piston engine of the movable abutment type which is actuated by a pressurized fluid has a stator formed by an end-plate 2h Fig. 1 having thereon a concentric collar 3h with approximately radial pairs of flanges 4a, 4b, and 5a, 5b which respectively receive a movable abutment member 16 Fig. 7 and a second end-plate (2b) Fig. 3 (not shown) which has a circular groove to receive a rim 3n on the collar 3h, this collar forming the peripheral wall of the stator. A rotor 14 is located within the stator, is beyed to a shaft 15 and has a cross-section defined by a semi-ellipse and a semicircle, the major axis of the ellipse equalling the diameter of the semi-circle. Pressurized working fluid e.g. air or steam is admitted via an inlet 9 and exhausted via an outlet 10, a scavenging outlet 11 being provided to ensure good scavenging of the working chambers defined between the rotor and stator. Seals: A series of grooves are formed in the inward faces of the end-plates 2h, (2b) in the pattern shown in Fig. 1 and further grooves R, S 6r, 6s, 7r, 7s are formed in the collar 3h, corresponding grooves in the end-plates being directly opposite each other. Sealing strips 17 are  located in these grooves and are urged into contact with the respective faces of the rotor 14 or abutment member 16 by wavy spring elements 18. The rubbing faces 17f of the strips are convex and the strips are lubricated via oil delivered to holes 8 in the bottoms of the grooves. In one embodiment, two pairs of rotors and stators 1h, 1b and 20h, 20b are mounted on a common shaft 15 Fig. 2 the two rotors in each pair being connected in series for compound expansion. Steam is generated in a boiler 23 and is fed to the high pressure rotor of each pair sequentially by a distributing valve 24 which is reciprocated by a swash-plate 24e itself driven off shaft 15 via a chain and sprockets transmission 24t. Engine speed is controlled by a cock 25 and braking is achieved by admitting steam to the circular portion of the rotors Figs. 7 and 12 (not shown) via a conduit 26 in a by-pass line which closes the supply to the distributer 24. Where steam is the working fluid, the sealing strips 17 are of bronze having a high proportion of tin, the rotor and abutment members are of stainless steel and the stator is of duralumin and, if air, the sealing strips may have a base of graphitic cast iron.
Patent GB-946379-A (GB)
Title: Process for producing phenol-modified coumarone-indene type resins
Inventor: PATTERSON JAMES REYNOLDS
IPC: C08F240/00
Filed: 1962-02-19
Abstract: A process for producing phenol-modified coumarone-indene resins comprising polymerizing an anhydrous mixture of an essentially aromatic naphtha boiling principally in the range 160 to 200 DEG C. in which indene is the principal polymerizable constituent, and anhydrous cresylic acids, in proportions such that a small excess of said acids remain in the reaction mixture when the reaction is terminated, in the presence of an organic complex of boron trifluoride at a temperature not in excess of 110 DEG C. until the specific gravity of the reaction mixture becomes substantially constant, neutralising the catalyst, removing unreacted materials from the reaction mixture and recovering the alcohol-soluble phenol-modified product. In one modification the naphtha and cresylic acids are mixed and the catalyst thereafter added incrementally at such a rate that the temperature does not exceed 110 DEG C. In another modification the cresylic acids and catalyst are mixed, preferably together with an aromatic hydrocarbon boiling above the reaction temperature but below 300 DEG C., and the naphtha added at such a rate that the temperature of the reaction mixture does not exceed 110 DEG C. The first modification may give predominantly solid products and the second predominantly liquid products.  The preferred organic complexes are those of boron trifluoroide with alkyl ethers and alkanoic acids, e.g. methyl ethyl ether, diethyl ether, dipropyl ether, acetic acid and propionic acid.
Patent GB-1147128-A (GB)
Title: Water tank for stop-barrier
IPC: E21F5/14
Filed: 1968-02-08
Abstract: 1,147,128. Minimizing explosions in mines. CHARBONNAGES DE FRANCE. 8 Feb., 1968 [10 Feb., 1967], No. 6284/68. Heading ASA. A coverless water tank mounted on a bracket in a coal mine comprises two frontal walls sited transversely with respect to the direction of propagation of the pressure-wave emanating from an explosion, two lateral walls, and a bottom, characterised in that the walls are so arranged that the pressure-wave causes relative movement of the frontal walls towards each other. Alternative constructions which achieve this include:-(i) forming the whole tank of a deformable material eg. rubber, or thermoplastic resin; (ii) forming the lateral walls of a thinner non-deformable material than the frontal walls; (iii) providing lines of reduced thickness in the lateral walls or in joining the frontal walls to the bottom; (iv) articulating the frontal walls to the bottom and making them shorter than the distance separating the lateral walls. The water may be contained in an impermeable, deformable and removable pocket.
Patent GB-387144-A (GB)
Title: Process for making dough from wheat and other cereals and apparatus therefor
IPC: A21C1/12
Filed: 1932-03-02
Abstract: 387,144. Reducing grain. PAYS, A., 35, Rue du General-de-Sonis, Nantes, Loire Inferieure, France. March 2, 1932, No. 6315. Convention date, April 10, 1931. [Class 58.] To make dough cereals are soaked in water preferably at about 45-50‹ C. for as long as they definitely increase in weight (this period being about seven hours in the case of wheat), and are then allowed to swell without water, after which they are crushed in order to enable the bran to be separated. The grain, such -as wheat, is placed in a removable perforated sheet-metal basket 6 that is contained in the upper compartment of a reservoir 1 protected by a heat-insulating jacket 4. The lower part 5 contains water or any other liquid having a large calorific capacity so that the temperature of the whole may be maintained at about 45-50‹ C. The cock 7 enables water to be drawn off from the upper compartment when the grain no longer absorbs water. The grain is thereafter allowed to swell preferably being maintained at 45-50‹ C. during this process. The swollen grain is then poured into a hopper 15 of a separator mill comprising rings 10 of the width of a flattened grain mounted on a drum 9 of a slightly smaller diameter than the internal diameter of the rings. The rings are spaced apart by a fixed guide 13 and are forced against the drum by an adjustable driving roller 11. The grains pass from the hopper on to the drum and are caused to take up positions below the rings by pegs on an agitator 16. The grains are crushed between the rings and the drum as the driving roller is passed and the extruded paste is removed by a scraper 18 passing thence between a central roller 19 and subsidiary rollers 20, the roller 19 being roughened and turning less quickly than the rollers 20. The paste is carried away by the rollers 20, any flakes of bran adhering to the roller 19 from which they are removed by a scraper 22. A comb 23 extending over the full length of the drum under the rings 10 removes bran from the drum, being assisted by a rotary extractor 25.
Patent GB-868837-A (GB)
Title: Improvements in or relating to porous diaphragms
IPC: B22F3/26
Filed: 1959-02-24
Abstract: A porous diaphragm for use in separating the components of a gaseous mixture is obtained by passing through a support matrix having a pore size 10-100 microns, a suspension of particles of a size between one micron and several hundredths of a micron.  The suspension may contain a surface active agent.  Stainless steel is specified for the matrix, and titania for the suspension.  A thin metallic film, e.g. of copper or nickel, can be deposited on the diaphragm surface.ALSO:A porous diaphragm for use in ultrafiltration is obtained by passing through a support matrix having a pore size 10-100 microns, a suspension of particles of a size between one micron and several hundredths of a micron.  The suspension may contain a surface active agent.  Stainless steel is specified for the matrix, and titania for the suspension.  A thin metallic film can be deposited on the diaphragm surface.
Patent GB-578739-A (GB)
Title: Improvements in and relating to ordnance
IPC: F41F1/00
Filed: 1941-05-16
Abstract: 578,739. Bomb projectors. HOLMAN, A. T., THOMSON, T., HOLMAN BROS., Ltd., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 16, 1941, No. 6333. [Classes 9 (i), 92 (i) and 92 (ii)] A muzzle-loading mortar for projecting bombs, flares, depth charges and the like by means of a propellant charge of smokeless powder of constant burning surface comprises a combustion chamber 7 leading to an aligned chamber 8 of larger diameter containing a filter 12 and terminating in a venturi or like opening 10 leading to the gun barrel 1 below the muzzle-loaded projectile. Further, a firing mechanism 41 in line with the chambers is provided, the aligned parts moving with the barrel about overhanging elevation trunnions 3 on a pillar 2 movable about a vertical pivot for training. The venturi opening is preferably formed in a liner 9 which together with the filter 12 is readily replaceable. The venting area of the filter is greater than the area of the venturi opening. The range is varied in known manner by venting the gun gases through a plug valve. The gun is manipulated by handles 43, 42 on the barrel, the firing being effected by a trigger mechanism controlled by the handle 42 which is twisted to operate, through cam 51, rocker 52 and spring-controlled rod 53, a sleeve 54 that actuates the firing pin 41 through lever 64 and bell-crank 65. The cartridge, Fig. 7, comprises tubular sticks 81 of smokeless powder in a case 77 provided with a metal base 78 and a front celluloid pressure-equalising disc 82. The base is fitted with a firing cap 85 and a bag 80 containing a priming charge of black powder. The web thickness of the powder is chosen to suit the area of the orifice 10 so that a pressure is built up at which the charge will burn uniformly the volume of the charge being less than the volume of the chamber in which it burns. The chamber body 6 is shown in Fig. 4 provided with automatic gas-operated means for displacing it laterally to eject the case and insert a fresh cartridge. For this purpose, a gas tapping 8a from the cartridge chamber leads to a piston 17 for moving the body 6 against the action of a spring 18 until the chamber registers with an ejector 19 that also holds the body 6 in displaced position. The fresh cartridge is inserted in a pocket L<1> and rammed by a sliding member L<3>, which on return extracts the case, the handle L<4> being depressed against spring action to eject the case through an opening L<10>. The gas tapping may be closed by a valve 30 and the chamber body 6 moved by hand through a rod 26.
Patent GB-288012-A (GB)
Title: Improvements in automatic weighing and delivering machines
IPC: G01G21/00
Filed: 1927-03-07
Abstract: 288,012. Simon, Ltd., H., and Brian, J. C. March 7, 1927. Automatic -feed weighers. - In an automatic weighing and delivering machine the usual counterweighted lever connected to the weighing receptacle door, and the usual lever with its knockoff means for allowing the counterweighted lever to move to open the door are combined with an abutment consisting of a lever carried by the weighing receptacle and adapted to limit the movement of the counterweighted lever when released by the knock-off mechanism, and a fixed stop adapted to turn the abutment lever about its pivot to clear the counterweighted lever when the weighing receptacle rises due to discharge of material. In addition to the usual toggle links d, e and release lever i of the discharge door b, the weighing receptacle a carries a lever m which obstructs a pin k on the link e thus permitting only a partial opening of the discharge door when the toggle links are liberated by displacement of the lever i in usual manner. When the bucket has risem to a position wherein the usual weight box is deposited on its stop, the arm o of the lever m engages an adjustable stop p, and the lever m is moved clear of the pin k thereby permitting the discharge door to open fully and to complete the discharge rapidly. In order to prolong the period of discharge, a weighted lever may be pivoted on the frame so as to intercept and retard the descent of the weight box.
Patent GB-326329-A (GB)
Title: Improvements in auxiliary seats for closets
IPC: A47K13/06
Filed: 1929-02-27
Abstract: 326,329. Parkes, E. Feb. 27, 1929. Closet seats.-A collapsable auxiliary closet seat for children is removably retained in position by a catch K and wires k engaging the aperture in the ordinary seat. The arms C are supported by pivotally mounted rods D, D'. The rod D<1> passes through both arms C and is bent round a groove c in the back rest E, being retained therein by a spring strip F. A safety strap H is provided, and the seat is maintained extended by engaging the lower end of the strip F with a stud on the back of the seat A.
Patent GB-557142-A (GB)
Title: Improvements in and relating to gas burner jets
IPC: F23D14/48
Filed: 1942-05-12
Abstract: 557,142. Gas burners. ASCOT GAS WATER. HEATERS, Ltd., and FRIEDMAN. L. May 12, 1942, No. 6422. [Class 75 (i)] A gas burner jet 9 is fitted with a steatite or like burner tip 15, formed with a mixing chamber 19 and having aeration holes 17 adjacent and inclined at an acute angle to the flame orifice 16. The gas enters the mixing chamber 19 through a tapering passageway 20 preferably having curved sides. An annular recess 22 around the opening 21 of the passageway 20 collects dust &c. falling through the flame orifice 16. A gauze filter 23 and a baffle may be arranged below the tip 15. A metal sheath 18 integral with the jet 9 protects the tip 15. Fig. 7 shows an annular steatite burner tube 28 provided with a series of integrally formed tips 29 and sheathed in a twopart metal casing 30.
Patent GB-190099-A (GB)
Title: Improved process and apparatus for treating rubber latex and similar material
IPC: B29B13/06
Filed: 1922-03-06
Abstract: 190,099. General Rubber Co., (Assignees of Bradley, C. E., and Coffin, J. G.). Dec. 7, 1921, [Convention date]. Rotary apparatus. - Apparatus for spraying latex into a current of hot gases comprises a rotating disc 42 on a shaft 40 with drive pulley 41. Latex is fed by a pipe 52 to a chamber 45 surrounding the shaft 40 and flows through an annular nozzle 48 on to the disc 42. The rate of flow may be adjusted by raising or lowering the nozzle 48. Reference has been directed by the Comptroller to Specifications 157,975, [Class 70, India-rubber &c.] and 157,978, (as open to inspection under Sect. 91 of the Act).
Patent GB-1026056-A (GB)
Title: Apparatus and method for reshaping tubular bodies
IPC: B29C49/46
Filed: 1963-02-19
Abstract: 1,026,056. Stamping. CONTINENTAL CAN CO. Inc. Feb. 19, 1963 [April 25, 1962], No. 6589/63. Heading B3Q. [Also in Division B5] A method of reshaping a tubular body wherein the body is enclosed within a shaped mould, its ends are sealed and a gas mixture is introduced and exploded therein, thereby producing a shock wave which expands the object to conform to the shape of the mould. An openended can body 16 is positioned on a sealing ring 27 of a support 18, located in a block 17. A fluid-operated vertically reciprocating plunger 19 having an end closure 20 and a flange 21 located and retained within a recess 22 of the support 18 is raised to engage the inside of the can and lift the support and the can until the upper end of the latter engages a seal 26 of a central portion 25 about which are disposed a pair of moulds 35. The moulds are closed by a double-acting fluid motor 33. The exhausting of the can body and the injection of the gaseous explosive mixture are controlled by a rotary valve 37. Firing of a sparking plug 28 positioned centrally in the portion 25 explodes the mixture to expand and deform the body to the contours of the mould. Materials such as coated or uncoated steel, aluminium and alloys thereof and plastics, e.g. polyethylene, polyvinyl chloride, polypropylene or polycarbonates may be used. One or both ends of the bodies may be fitted with closure members which may also be deformed and the bodies may be of a cylindrical, oval, square or tapered cross-section. Metalended plastic bodies may be used. The blanks may be lithographed or printed prior to forming and decorative patterns may be formed thereon according to the mould shape. The gaseous explosive mixtures may comprise town gas of 1000 B.Th.U./cu. ft., acetylene and oxygen and various hydrocarbons or hydrogen with air or oxygen. In an embodiment flanged cans are positioned during lifting in a recess 53 of a support 47 and supported on a recessed head 52 into which the base of the can is deformed, subsequent lowering of the assembly causes the can to be ejected from the recess by the relative movement of the support 47 and the head 52.