baber/WOPTO huggingface dataset:
Patent GB-582631-A (GB)
Title: Improvements in or relating to work gauges
IPC: G01B5/20
Filed: 1943-12-14
Abstract: 582,631. Linear - dimension gauges. NEWTON, E. P. (Bryant Chucking Grinder Co.). Dec. 14, 1943, No. 20954. [Class 106 (ii)] A gauge comprises a fixed and a movable work-engaging element, the movable element being spring-biassed towards the work but held back by electric means, and a feeler which is moved when the work is in position to deenergize the electric means, whereupon the movable element engages the work. Indicating mechanism such as two electric lamps may be provided to indicate whether the work is above or below the tolerance limits. When gauging threads, the work - engaging elements are threaded and provided with guiding members to facilitate location of the work. The workengaging elements may be coated with tungsten carbide to resist wear. The work to be gauged is inserted between the fixed jaw 5 and movable jaw 22 mounted on an arm 13 pivoted at 20. The jaws are normally held apart by the solenoid 40 acting on the rod 41 which is connected to the arm 13. When the work is fully inserted, it depresses a feeler 48 which opens the switch 49 and de-energizes the solenoid 40, thereby allowing the jaw 22 to close on to the work under the influence of leaf springs 10 and 11. The size of the work may then be read on the indicator gauge 60. Alternatively, a visual signal may be obtained from the lamps 61, 62. The lamp 61 is normally alight, but is extin- . guished if the work is less than the permitted maximum size by the arm 13 actuating the plunger 65 of the normally closed switch 70. If the work is less than the permitted minimum size, the arm 13 moves further and actuates the plunger 68 of a second switch 71 to light the lamp 62. Thus, if neither lamp lights, the work is within the permitted limits. The positions of the switches 70, 71 may be adjusted by screws 73, 74. When measuring diameters of screw-threads, the members 5 and 22 have the thread profile, and introduction of the work is facilitated by the provision of a convex guiding member 27 and spring 29 each formed with a thread profile. Other forms of the apparatus are described for gauging diameters of vertical members and internal diameters.
Patent GB-586809-A (GB)
Title: Improvements in relief valve
IPC: F16K17/10
Filed: 1944-10-27
Abstract: 586,809. Fluid-pressure servomotors; relief valves. MERIT ENGINEERING, Inc. Oct. 27, 1944, No. 20999. Convention date, March 16. [Class 135] A fluid relief valve has a main flow passageway 11 and a relief passage 12, communication between the two being controlled by a spring- loaded main valve 27 guided by members 15, 36. Seating on the member 36, which is shrunk into a sleeve 37, is a spring-loaded control valve 50, the space above which is in communication with a chamber 33 formed between a shoulder in the member 15 and the lower surface of an enlarged part of the valve 27, so that upon opening of the control valve 'by the fluid pressure when it reaches' a predetermined value, fluid enters the chamber 33 to open the main valve 27 and permit fluid to escape to the relief passage 12 via passages 26, 26<1>. When the pressure in the main passage drops to the normal value the control valve closes underthe action of its spring and the fluid in the chamber 33 escapes along the surfaces 22, 52, 53 to the relief passage, thus allowing the main valve to close. The construction of the valve is such that it forms a complete unit which may be inserted in any suitable housing such as that shown at 10.
Patent GB-1035355-A (GB)
Title: Purified extract of mammalian kidney
IPC: A61K35/22
Filed: 1963-05-27
Abstract: An extract of mammalian kidney free from undesirable impurities is obtained by (1) extracting the fresh or frozen kidney at 0 DEG C. to 10 DEG C. and pH 5 to 6.5 with a solvent containing 20 to 60% water and 80 to 40% of a solvent selected from acetone, methanol, ethanol, propanol and isopropanol for at least 4 hours and removing insolubles; (2) concentrating the clarified solution from (1) at a temperature no higher than 40 DEG C.; (3) treating the concentrate from (2) with n-hexane or benzene to remove impurities; (4) extracting the aqueous residue from (3) with ethyl acetate; (5) removing the solvent from the ethyl acetate extract of (4) to obtain a solid; and 16, partitioning the solid extract of (5) in each of two-phase distribution system containing (A) a mixture of benzene, cyclohexane, water and ethanol (5 : 5 : 8 : 2) and (B) a mixture of ethyl acetate, cyclohexane, ethanol and water (1 : 1 : 1 : 1) and concentrating selected partitions to dryness in vacuo.  Potent fractions are identified by biological determinations of hypotensive activity.  The kidney may be canine, bovine, porcine or ovine kidney.
Patent GB-888980-A (GB)
Title: Improvements in or relating to saw chains
IPC: B21L9/00
Filed: 1960-06-15
Abstract: 888,980. Making chains. SANDVIKENS JERNVERKS A.B. June 15, 1960 [June 16, 1959; Feb. 4, 1960], No. 21104/60. Class 83 (2). [Also in Group XXV] In a method of making links for a saw chain the ends of the rivet holes in the links are workhardened by cold-coining. The chain comprises cutting links 4, driving links 6 and interconnecting links 8, and the ends of the rivet holes in each of the links is coined by pressing with a pair of steel balls 18, 20. The depth of the countersink is between 8-25%, and preferably between 10-15% of the link thickness. A tangent to the mid-point of the curved surface should make an angle with the axis of the hole between 40 degrees and 55 degrees, preferably 45 degrees. The diameter of the balls should be 50% to 200% greater than the diameter of the hole. Fig. 8 shows a press tool comprising an upper die unit 52 and a lower die unit 54 which is mounted in a plate 64 supported by a heavy spring 68. The link is located over the ball dies 60, 62 by a plate 67. In a modification (not shown, see Fig. 9) the balls are replaced by spherical ended cylindrical plungers. In a further modification the plungers have frustoconical ends and in a third modification the surfaces 98 (Fig. 5) are made convex by forming them with a cylindrical die of the same diameter as the hole and which has a concave protruding flange around the base part. Details are given of a typical link, the pressure used on the dies and the results of tests on the links produced.
Patent GB-933386-A (GB)
Title: Improved processes for the production of vacuum filled receptacles
IPC: B65B31/02
Filed: 1961-06-13
Abstract: 933,386. Bottling; packaging. J. A. BODET. June 13, 1961 [Oct. 13, 1960; Jan. 3, 1961], No. 21376/61. Classes 94(1) and 125(2). A receptacle 2 with an inlet duct 3 and an auxiliary cavity 12 is vacuum-filled with a liquefied substance by placing it within a chamber 4, applying suction to the chamber, releasing the suction to permit the substance, which covers the entrance to the duct 3, to enter the receptacle, causing the residual air from the receptacle to be wholly contained in the auxiliary cavity, and then sealing the open end 13 of the receptacle. As shown in Fig. 1, a number of receptacles with inlet ducts 3 and auxiliary cavities 12 are formed between two superposed thermoplastic sheets 1, and after the substance has been drawn into the receptacles and cavities, the receptacle assembly or thermoplastic strip is inverted so that the liquid from the cavities replaces the air in the receptacles. The ends 13 are then sealed e.g. by hot welding, and that portion of the strip containing the cavities is then cut from the remainder. In a modification, the strip is notched in the gaps separating the various cavities, thereby facilitating the tearing of each receptacle from the strip. In the embodiment shown in Fig. 6, the residual air of each receptacle enters immediately into the auxiliary cavities 12, and in that shown in Fig. 10, the auxiliary cavity is separate from the packing strip. In further modifications one auxiliary cavity, may be used to contain the residual air from several interconnected receptacles, or the function of such a cavity may be carried out by one of the receptacles.
Patent GB-462115-A (GB)
Title: Improvements relating to power-transmitting machinery
IPC: F16D45/00
Filed: 1935-07-27
Abstract: 462,115. Free - wheel clutches. SHEARMAN, C. H. HOWLAND-. July 27, 1935, No. 21426. Convention date, July 27, 1934. [Class 80 (ii)] A power-transmitting device comprising a resilient coupling and a freewheel clutch has a series of primary and secondary drive members 41, 48 arranged between a driving member 20 and a driven member 32, a resilient element 53 being interposed between each pair of drive members and a freewheel connection being associated with each drive member. As shown, the driven member comprises a disc 32 keyed to a driven shaft 23 bearing a flywheel, and the driving member is formed as a worm wheel 20 driven at a reduced speed through a worm 17 by a source of power such as an electric motor. The primary drive members 41 are of segmental shape and are bolted to side plates in turn bolted to the worm wheel. The resilient elements are in the form of helical springs 53 received in recesses 47, 52 in the primary and secondary drive members respectively. These springs press the secondary drive members against the preceding primary drive members and their initial compression is sufficient for the inertia of the flywheel and other driven parts to be overcome without further contraction of the springs. The members 48 have projections 39 engaging radiallyslidable plungers 35 having curved oblique end faces 40 which in the driving position shown clear the inner surfaces 45 of the members 41 but move into sliding contact therewith when overrunning occurs, this action being facilitated by tongues 50 on the secondary drive members engaging recesses 46 in the primary drive members. The plungers 35 are forced outwardly by springs 36, this movement being limited by heads 38 on guide pins 37. Washers may be mounted on the heads 38 to avoid noise and shock in the free-wheeling action. The device has a casing 10 provided with a cover part 54. Thrust and journal roller bearings 14, 18 are provided for the worm 17 and its shaft 16.
Patent GB-169559-A (GB)
Title: Improvements in or relating to locking and unlocking devices for lift cages and well doors
IPC: E05B65/00
Filed: 1920-07-16
Abstract: 169,559. Carter, W. G. July 16, 1920. Lift doors, locking and unlocking.-In a combined electric switch and mechanical door lock, the insertion of the beak of the lock into the lock casing brings the switch elements first into alignment and then into contact. One switch member g is carried by a slidable rod f and the other member h is mounted at one end of a lever m. The beak of the lock is fixed to the leading picket of the well gate and comprises a fixed member a and a pivoted member b. When the beak enters the lock, the member a pushes back the rod f until the switch member g is in position to be engaged by the switch member h, and so complete the circuit when the lever m is rocked. This latter movement occurs when the pivoted member b has raised the guard-plate j and surmounted the locking-bar l. The spring-controlled guardplate j is locked in the position shown by a spring-pressed bar n, when the cage is away from the landing, and is released by lever mechanism actuated by a ramp on the cage.
Patent GB-1389736-A (GB)
Title: Mining apparatus for long wall mining
IPC: B66C13/12
Filed: 1972-05-09
Abstract: 1389736 Taking up slack in flexible elements JOY MFG CO (UK) Ltd 31 May 1973 [9 May 1972] 21500/72 Heading B8B An arrangement for taking up slack in a power supply cable 12 for a mining machine 11 reciprocable along a conveyer structure 10, wherein the cable 12 extends between a fixed point 13 on the structure 10 and the movable machine 11, comprises a slide 17 through which the cable 12 is looped and which reciprocates along part of the conveyer structure 10 at half the speed of the machine 11. The machine is connected to a drive chain 14 extending between sprockets 15, 16 at the ends of the structure 10, and a wire 22 connected at one end 24 to the structure 10 and at the other end 23 to the chain 14 is looped around an idler pulley 25 on the structure 10 and around a pulley 21 on the slide 17 to control movement of the latter. The coupling 24 includes a spring for tensioning the wire 14. The slide 17 includes a set of rollers 12a for guiding the cable 12 and slidably engages a longitudinal plate on the conveyer structure.
Patent GB-890311-A (GB)
Title: Process and apparatus for treatment of hydrocarbons
IPC: F23D11/40
Filed: 1959-06-23
Abstract: <PICT:0890311/IV (b)/1> Acetylene is formed by the partial combustion of a mixture of oxygen and methane.  The mixture is formed in the apparatus shown which comprises an inlet pipe 21 for preheated methane and two inlet pipes 17, 19 for preheated oxygen.  The methane and oxygen are mixed in an annular mixing zone 12 having a plurality of interconnected chambers 23 and the mixture passes into an annular divergent chamber 13 having a distributor 14 leading to a combustion chamber.  Additional oxygen is supplied at the bottom of the distributer.  Specification 869,743 is referred to.
Patent GB-1171124-A (GB)
Title: Improvements relating to Lifting Devices.
Inventor: SCOTT DONALD ALAN
IPC: B66F9/06
Filed: 1966-05-14
Abstract: 1,171,124. Tractor fork-lift attachments. NU-WAY BENSON Ltd. 11 May, 1967 [14 May, 1966], No. 21526/66. Heading B8H. A load supporting fork 18 is moved up a mast 10 mounted on the lift links of a tractor by raising the lift links. A cable 33 extends from the lifting carriage and pasess over a pulley 50 at the top of the mast and a pulley 52 mounted on an arm pivoted to the tractor to an anchorage 54 on the mast. A hydraulic ram 60 may be provided to assist in raising the mast. The fork 18 is pivotally supported at 20 on the lifting carriage and is arranged to tilt towards the tractor when raised from its lowermost position in which the tines are inclined downwardly. The fork is coupled by a pin- and-slot connection to an arm 37 pivoted to an arm of a bell-crank on the lifting to carriage. The other arm of the bell-crank constitutes the anchorage of the cable 33 on the lifting carriage. On raising the lifting carriage, the cable 33 rotates the bell-crank counterclockwise against the action of a spring, Fig. 3 (not shown), thereby moving the arm 37 rearwardly to tilt the fork tines upwardly. A manually-operable brake is provided on the lifting carriage, Fig. 5 (not shown), whereby, if the tension in the cable is released, the forks may be lowered with the lifting carriage in any position.
Patent GB-1353447-A (GB)
Title: Method for the continuous longitudinal corrugation of sheets of thermoplastic material and corrugated sheets obtained thereby
IPC: B29C59/04
Filed: 1972-05-09
Abstract: 1353447 Corrugating thermoplastics sheet SOLVAY & CIE 9 May 1972 [10 May 1971] 21529/72 Heading B5A [Also in Division D1] A method for the longitudinal corrugation of thermoplastics sheets comprises using a device having a series of endless bands 7, e.g. of wood, each with a cross-section corresponding to the required corrugation and supported by shells 6 on endless supports 3. A heated sheet 11 is fed between the bands 7 to be corrugated, and is then cooled by a fluid supply 10. In Fig. 3 (not shown), the bands 7 have a polygonal crosssection. The band supports can be fixed.
Patent GB-1042904-A (GB)
Title: Improvements in polyester fiber manufacture and products obtained thereby
IPC: D01F6/62
Filed: 1964-05-25
Abstract: 1,042,904. Treating polyester filaments. MONSANTO CO. May 25, 1964 [June 4, 1963], No. 21542/64. Heading B5B. Molecular orientation is imparted to polyester filaments by impregnating the undrawn filaments with an aqueous emulsion the solids content of which comprises 70-100% by weight of a phosphate ester surfactant and 0-30% by weight of an amine salt of an alkyl phosphate or mixtures of such salts and then stretching the impregnated filaments. The phosphate ester surfactants may be those of formulµ where R is an alkyl radical having 8 to 20 carbon atoms, or an alkylphenyl radical in which the alkyl portion has 8 to 20 carbon atoms, M is hydrogen, ammonium, alkali metal or alkaline earth metal, and n is an integer from 2 to 20. The amine salts of alkyl phosphates may be those of formula where x is 1 or 2, y is 3-x, R is a normal, alkyl radical having 8 to 16 carbon atoms and NX is an oxyalkylene amine selected from mono-, di- and trimethylamine, the ethanol derivatives of monomethyl and dimethyl amine, and morpholine. The polyesters treated are those formed from dicarboxylic acids and glycols, and copolyesters or modifications of these polyesters and copolyesters. Many polymers are specified. The emulsion may be applied to the filament from a roll dipping into a bath of emulsion, or by use of a wick or split roll, or by passing the filaments through a bath of emulsion. The amount of " solids," i.e. the totality of ingredients of the emulsion exclusive of the aqueous medium deposited on the filaments is preferably 0À1-1À5% by weight of the filaments. In examples, filaments made from polyethylene terephthalate modified with methoxy polyethylene glycol and pentaerythritol are treated with (1) an aqueous emulsion containing 2% solids of which 70% by weight is the sodium salt of the phosphate diester of oleyl alcohol reacted with 7 moles of ethylene oxide, and 30% by weight is an equimolecular mixture of the bis-diethanolamine salt of monolauryl phosphate and the diethanolamine salt of dilauryl phosphate; and (2) an aqueous emulsion containing 10% by weight of the sodium salt of the phosphate diester of oleyl alcohol reacted with 7 moles of ethylene oxide. The filaments are then hot-drawn.
Patent GB-1498775-A (GB)
Title: Direction changing device in motor-driven toys
IPC: A63H17/39
Filed: 1976-05-25
Abstract: 1498775 Wheeled toys S SUDO 25 May 1976 [31 Aug 1975] 21556/76 Heading A6S A motor-driven wheeled toy, e.g. a doll, toy animal or, as shown, a toy motor car having a chassis 7, goes forward in a straight line but follows a curved path in reverse and comprises a housing 1 mounted by a pivot 6 to the chassis 7 and carrying a motor 10 driving through gearing 9 to an axle 4 journalled in the housing with one driving wheel 2 fast at one end and another wheel 3 journalled at its other end. When the toy goes forward, Fig. 1 the drive to the driving wheel 2 pivots the housing 1 to abut a stop 13 and the car proceeds in a straight line. When the direction of the motor 10 is reversed, Fig. 2, the housing 1 is pivoted to abut a second stop 14 and the car goes backwards in a curved path.
Patent GB-222116-A (GB)
Title: Compensating damping apparatus for vehicle suspension springs
IPC: B60G11/36
Filed: 1924-09-12
Abstract: 222,116. Dubois, C. Sept. 18, 1923, [Convention date]. Springs, arrangement of.-A pair of oppositely arranged cylinders 1 pivotally mounted on a support 3 secured to the chassis enclose concentric cylinders 4 which are seated against conical shoulders in the outer cylinders and slide on rods 8 connected by ball joints 18 to a member 9 carried by a rod 10 secured to the axle of the vehicle. Springs 6, 7 mounted on each cylinder 4 abut at their outer ends against stops or flanges 11, 12 on the cylinder 4 and rod 8 respectively while their inner ends abut against a ring 5 free to slide upon the cylinder 4 and within the cylinder 1. The springs extend, when the axle moves away in either direction from its normal position relatively to the chassis and resist the return movement, the position taken up by the cylinders when the wheel drops into a depression in the road being shown in Fig. 5.
Patent GB-669663-A (GB)
Title: Improvements in weighing scales
IPC: G01G1/26
Filed: 1949-08-19
Abstract: 669,663. Weighing apparatus. FEREDAY, C. A. and FEREDAY & SONS, Ltd., H. Aug. 17, 1950 [Aug. 19, 1949], No. 21594/49. Class 143. The sensitivity of a weigh beam is varied by vertical adjustment of the tare weight. As applied to a steelyard scale of the kind in which the load is counterbalanced by three sliding poise weights 12 co-operating with indexes 13, the tare weight 16 is horizontally adjustable on a threaded rod 15 which itself is vertically adjustable in a slot (not shown) in a cross number 18, nuts 19 being provided to lock the rod in its adjusted position. The beam is pivoted on knife edges 10 and supports a weigh pan (not shown) on the cross member 18. In a modification (not shown) loose weights can be applied to the beam to assist, or replace, sliding weights 12.
Patent GB-795887-A (GB)
Title: Method of and device for burning fuels
IPC: F23C99/00
Filed: 1955-07-26
Abstract: 795,887. Powdered or liquid fuel burners. FARBENFABRIKEN BAYER AKT.-GES. July 26, 1955 [July 26, 1954], No. 21595/55. Class 75(1) A combustion device for burning powdered or liquid fuels comprises a combustion chamber supplied with fuel and air from a centrally arranged pipe provided with means to impart a whirling motion to the fuel and air flowing therethrough, a chamber surrounding the pipe and having an inlet for secondary air and an annular outlet which is formed between the outlet opening of the chamber and the mouth piece of the fuel and air pipe and opens into the combustion chamber, at least a portion of the combustion chamber having an annular cross-section wider than the secondary air outlet and a constricted outlet so that a stationary eddy is formed in the annular portion of the combustion chamber from secondary air flowing back along the wall of the annular portion towards the annular outlet from the secondary air chamber. Coal dust or liquid fuel mixed with carrier air in a pipe 1 is mixed with air introduced tangentially at 2 in the burner head in a nozzle 14 and the mixture passes as a rotating conical spray into a chamber 3 where the mixture is burnt and issues as a burning mass through an opening 8. The chamber 3 provides an annular portion 4 in which an eddy 12 is created by the conical jet. The heavy particles of coal dust or oil drops are centrifuged into the portion 4 where they are partially burnt or reduced in size before issuing through the opening 8. Combustion air or liquid fuel is passed through a pipe 6 to a jacket 7 to cool the burner block 5. The burner block 5 may be made of a ceramic material. The pipe 1 is axially removable and interchangeable to suit different fuels. Incisions 11 are provided at the annular portion of the chamber 3 to carry away liquid slag formed when burning coal dust. Combustible dusts, liquid fuel or gases can be injected into the eddy 12 through an opening 13. The device may be provided with igniting means 9 and an inspection opening 10.
Patent GB-347973-A (GB)
Title: Improvements in smokers' ash trays
IPC: A24F19/00
Filed: 1930-07-17
Abstract: 347,973. Smokers' ash-trays. FAIRLIE, T. W., 408, Clarkston Road, Muirend, Cathcart, Glasgow. July 17, 1930, No. 21608. [Class 130.] An ash-tray comprises a casing a open at the top and bottom and a receptacle b pivoted in the casing d. A hopper e with an opening f is secured to the receptacle by studs g so that, when the hopper is moved to the position shown in Fig. 4, the receptacle b is inverted and emptied. In a modification, the hopper is made integral with the casing and the receptacle inverted by a finger-piece.