baber/WOPTO huggingface dataset:
Patent GB-1004130-A (GB)
Title: A pneumatic linear dimension gauging system
IPC: D06B17/02
Filed: 1964-05-08
Abstract: 1,004,130. Pneumatic linear-dimension gauges. CINCINNATI MILLING MACHINE CO. May 8, 1964 [Sept. 23,1963 ], No. 19356/64. Heading G1M. In order that a pressure gauge 19 should be sensitive to pressure variations due to small dimensional changes in a workpiece W but not to large ones, as the workpiece W passes beneath a work-sensing nozzle 16, the pneumatic system including the gauge 19 is provided with a valve 24 connected in parallel with a restricted passage 23 between the gauge 19 and the nozzle 16 in such a way that a diaphragm 26 within the valve responds to a pressure differential across the restriction 23 to open or close a passage through the valve 24 by-passing the restriction 23. Air under pressure is provided by a source 10 to the valve 24 and the restriction 23 connected in parallel to the gauge 19 so that the pressure changes due to a variation in air gap 18 between the nozzle 16 and workpiece W can be registered on the gauge 19. The diaphragm 26 which divides a chamber 25 within the valve 24 into two halves 25a, 25b is arranged to contact a nozzle portion 28 when the pressure in 25a is less than or equal to the pressure in 25b so that (1) a large drop occurring as the nozzle 16 senses a change from a land L to a recess R in the moving workpiece W is accompanied by a movement of the diaphragm which allows the air in the system to flow only through restriction 23 thereby providing a gradual decline of pressure reading registered on the gauge 19 and (2) a large pressure increase occurring as the nozzle 16 senses a change from recess R to land L in the moving workpiece W is accompanied by a movement of the diaphragm which allows the air in the system to flow freely through the valve thereby providing an immediate accurate reading corresponding to dimension of land L on the gauge 19. The restriction presents no resistance of movement of air for small pressure changes and therefore irregularities in the surface of land L are accurately and quickly registered on the gauge 19. In an alternative embodiment (Fig. 3, not shown) in which the valve 24 is differently arranged a nozzle 16 is supported above a pivoted lever which engages the workpiece and movements of the lever corresponding to the irregularities in the workpiece cause variations in the pressure communicated to the gauge 19.
Patent GB-1178423-A (GB)
Title: Resolution of (±)-Trans-Chrysanthemum-Monocarboxylic Acid Quinine Salt
IPC: C07C61/04
Filed: 1967-04-27
Abstract: 1,178,423. Resolving (Œ)-trans-chrysanthemum acid. SUMITOMO CHEMICAL CO. Ltd. 27 April, 1967 [27 April, 1966], No. 19398/67. Heading C2C. A process for the resolution of (Œ)-transchrysanthemum monocarboxylic acid comprises adding to a solution thereof in ethanol (at least 500 ml of ethanol per mol of acid being used) at least an equimolar quantity of quinine, separating the (-) acid quinine salt which is precipitated, adding to the mother liquor 45 to 55% of water by volume of ethanol, allowing the mixture to stand and separating the precipitated ( + ) acid quinine salt. Racemic acid may be recovered by adding a large amount of water to the residual mother liquor and decomposing the quinine salt with a mineral acid. The (+) and (-) acid salts are decomposed with a mineral acid to yield the optically pure acid.
Patent GB-286960-A (GB)
Title: Improvements in or relating to automatic fire arms
IPC: F41A35/02
Filed: 1927-07-21
Abstract: 286,960. Bensa, F. July 21, 1927. Machine guns.-Relates to automatic guns of the kind operated by a muzzle sleeve driven forwards by the gases. According to the invention, a shutter for closing the ejection opening is held closed by a member connected to the sleeve and is free to open as soon as the sleeve moves forwards. As shown, the shutter 2 is held closed against the pressure of a, spring 4 by a detent 3 connected to the muzzle sleeve so that the shutter opens as soon as the sleeve moves forwards.
Patent GB-580479-A (GB)
Title: Improvements in hose coupling
IPC: F16L37/12
Filed: 1945-07-30
Abstract: 580,479. Hose couplings. KRONE, H. C., and MEYER, W. July 30, 1945, No. 19451. [Class 99 (i)] A telescopic hose coupling has means for locking its male and female members 10 and 15 when joined together, comprising radially movable arcuate latch members 31 carried by the female member and adapted to engage in a groove 14 of the male member, said latches being spring-pressed to normal initial released position, Figs. 2 and 3, by the springs 35 so as to facilitate making or breaking of the coupling. The female member has a sliding ring 36 provided with an internal camming, surface 38 which moves the latches inwardly into engagement with the male member where they are locked by a detent on the ring comprising a screw 41 the end 42 of which enters the recess 40, Fig. 7, and which has a spring urged locking ball 44. The bell portion 20 of the female member has an internal stop flange 21 to arrest the male member, and a packing ring 24 situated in the groove 22, the ring having a skirt 25 which conforms to the forward end 26 of the male member but with slightly greater internal diameter. The ring is pressed against the shoulder 23 by the union member 18, and fluid pressure holds it down against the surface 26.
Patent GB-680951-A (GB)
Title: Loading and unloading mechanism for vehicles
IPC: B60P1/00
Filed: 1950-08-04
Abstract: 680,951. Loading and unloading vehicles. PAIEMENT, J. Aug. 4, 1950. No. 19492/50. Class 78 (iv). Apparatus for loading and unloading vehicles comprising a transverse and vertical wall slidable along the floor of the vehicle by a cable system which includes a double pulley mounted for movement lengthwise of the floor, single pulleys supported by the vehicle, and a cable which is trained over said pulleys and has its ends attached to two fixed points on the vehicle and is also attached to the said wall, is characterised by the provision of another double pulley carried by the vehicle and by the cable being trained singly over each of the double pulleys, extended round single pulleys spaced lengthwise from the double pulleys, and returned to and trained again over the double pulleys. As shown, a wall 2 is drawn rearwardly along a vehicle floor to discharge a load by two cables A which are secured at one end to anchors 8 on the sides of an operating cylinder 4 and at their opposite end to an anchor 24 at the rear end of the floor. Each cable passes from the anchor 8 halfway round one of the grooves of a double pulley 7 mounted on a piston rod 5 operating in the cylinder 4, and is then directed at 9 over a pulley 10 and passes nearly round a double pulley 12 to a pulley 14 at the rear end of the floor. The cable is then extended forwardly at 15 to a pullev 16 and carried at 17 into the remaining groove of the pulley 12 from which it continues round pulleys 19, 21 to the remaining groove of the double pulley 7 and then rearwardly at 23 to the anchor 24. The wall is secured at its sides to fasteners 25 on the cable laps 15 whereby when the pulleys are moved rearwardly by the piston 5, the wall is moved rearwardly to discharge a load. Reverse movement of the piston returns the wall to its forward position. This movement may be used for pulling a load on to the vehicle.
Patent GB-420496-A (GB)
Title: Improvements in convertible bodies for vehicles, and particularly for motor vehicles
IPC: B60J7/16
Filed: 1934-01-16
Abstract: 420,496. Vehicle bodies. PAULIN, G. A., 61, Avenue Pierre-Larousse, Malakoff, Seine, France. Jan. 16, 1934, No. 19498. Divided out of 414,968. [Class 108 (i)] In road vehicles having a rigid upper portion or roof movable in translation in order to be withdrawn into a receptacle placed at the rear of the body, the upper portion 1 is connected to the body by side levers 40 and a central lever 41 pivoted to the portion 1 and body respectively and the central lever 41 is operated by any suitable means. As shown, the central lever 41 is provided with a nut 66 upon a screw 65 which is rotatable in either direction by means of a sprocket chain 70 from a reducing gear 72 driven from the shaft 73. This latter shaft is driven by a motor 74 through magnetic clutches 75, 76 and drives also through gears 78, 79 and links 82, levers 83 pivoted to the body at 84 and through links 85 to the cover of the receptacle to open and close the same. Fig. 3 shows the electrical connections. The motor 74 is driven from the battery 94 in either direction by means of a manual reverser 86 and automatic reverser 87 which puts one or other of the fields 92, 93 in circuit by means of electromagnets 90, 91. A shunt 95 when the motor is running operates the electromagnet 96 putting into circuit parallel circuits embodying the magnetic clutches 75, 76 and automatic reversers 88, 89. The cover of the receptacle is opened through reverser 88 and closed through reverser 87 while the portion 1 is inserted into the receptacle by means of reverser 89 and withdrawn by means of reverser 88.
Patent GB-838551-A (GB)
Title: Improvements in or relating to plasma-containing structures
Inventor: CARRUTHERS ROBERT
IPC: H05H1/02
Filed: 1957-06-20
Abstract: 838,551. Nuclear fusion reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. June 18, 1958 [June 20, 1957], No. 19512/57. Class 39(4). In a gas discharge apparatus for producing thermonuclear reaction in which a highcurrent discharge is produced in a gas, a metallic surface exposed to the discharge is formed of a multiplicity of mutually insulated metal members, each presenting to the discharge a surface having an area less than the critical area required to maintain an arc spot, mounted to overlap with the surfaces in substantially parallel planes whereby substantially no photons or ions from the discharge can penetrate the subdivided surface. In the drawing the inner surface of a metal torus wall 1 containing a ring discharge 5 has spaced from it an insulating torus 2, which may be of ceramic. A number of overlapping plates 4 each of an area less than the critical area are mounted on posts 3 sealed through the torus 2 and are arranged in four parallel banks, the mounting centres of each group of four mounting posts being at the four corners of a square. The plates are circular, but could be of any other suitable shape, and are preferably of a metal of low atomic number such as aluminium, magnesium or beryllium, The critical area is found by experiment and is of the order of a few square centimetres. Ths space between the torus 2 and the wall 1 may contain a coolant such as water to conduct heat away from the projecting ends of the posts 3. Specification 830,252 is referred to.
Patent GB-1388721-A (GB)
Title: Method of manufacturing hollow bodies and coatings of  polytetrafluorethylene and the products obtained by said method
IPC: B29C61/02
Filed: 1972-04-27
Abstract: 1388721 Forming tubes by winding POLYGEST AG 27 April 1972 [29 April 1971] 19535/72 Heading B8G [Also in Division F2] A method of manufacturing tubes of P.T.F.E. or coating tubes with P.T.F.E. comprises wrapping around a core or around a body to be coated a thermo-shrinking, unsintered P.T.F.E. tube whose structure has been longitudinally oriented by calendering it, in such manner that edges of neighbouring turns overlap one another and then raising the tape to a temperature in excess of 330‹ C. in order to produce sintering and subsequently cooling it. The core may be a glass tube which can be subsequently removed by fractioning it or a steel tube which can be removed after working the P.T.F.E. tube to expand it slightly. The tube or covering can be reinforced with a coating of a polyester or a polymide reinforced with fibre wires or glass tissue.
Patent GB-889117-A (GB)
Title: Process for the manufacture of thioxane-(1:4) and alkyl and aryl derivatives thereof
Filed: 1958-06-19
Abstract: Thioxanes of the general formula <FORM:0889117/IV (b)/1> in which R1-R8 each represent a hydrogen atom or an alkyl or aryl group are prepared by reacting a b .b 1-dichloroethylether of the general formula <FORM:0889117/IV (b)/2> with an alkali metal sulphide hydrate in the molten state at a temperature in the range 100 DEG C.-250 DEG C.  The preferred substituents are alkyl groups containing 1-6 carbon atoms, phenyl groups and alkyl phenyl groups in which the alkyl groups contain 1-4 carbon atoms.  An inert high-boiling solvent may be present in the reaction mixture.  Suitable solvents are, for example, dialkyl ethers of alkylene glycols containing 2-6 carbon atoms or polyethylene or polypropylene glycols having a molecular weight up to 400.  The product may be advantageously separated by salting out with the alkali metal chloride formed during the reaction, by adding sufficient water to produce a saturated solution and separating the two layers at raised temperature.
Patent GB-812393-A (GB)
Title: Improvements in or relating to valve devices for controlling servo-devices of the differential air pressure type, particularly for hydraulic brakes
Inventor: CHOUINGS LESLIE CYRIL
IPC: B60T13/24
Filed: 1956-06-25
Abstract: 812,393. Hydraulic brakes. AUTOMOTIVE PRODUCTS CO. Ltd. June 17, 1957 [June 25, 1956], No. 19653/56. Class 103 (1). A pneumatic servo-device for hydraulic brakes has a control valve, shown on an enlarged scale in Fig. 2, such that at low hydraulic pressure generated by the master cylinder 26, the piston 31 produces sufficient thrust on the rod 63 to move the valve member 49 against spring 55, and lift it off its seat, so that atmospheric air may enter chamber 41 and flow through pipe 45 to the chamber on the right-hand side of the servo-cylinder piston 11, the piston 11 thus being moved to cause thrust rod 16 to close the port through piston 15 and apply a light hydraulic pressure to the brakes. Subsequently the pressure in chamber 41 rises sufficiently to flex the diaphragm 58 against spring 59 so that the edge 61 of the ring 56 is moved away from contact with the valve housing, and eventually valve 52 recloses, the pressure in chamber 41 being maintained appropriate to the pressure that is required to act on the piston 11.
Patent GB-864253-A (GB)
Title: Preparation of diborane
IPC: C01B6/10
Filed: 1959-06-09
Abstract: Diborane and partially halogenated boron hydrides, are prepared by reduction of a boron trihalide, e.g. BF3, BCl3 BBr3, or Bl3, with H2 in the vapour phase at 250 DEG -950 DEG  C. and atmos. up to 50 atms. pressure for 0.02-5 secs., in proportion 1-50 moles H2 per mole trihalide.  H2 is bubbled through BCl3 and the resulting vapour mixture passed through a reactor which may contain packing of a particulate inert substance, e.g. activated carbon, carbon wool, or B4C. The volatile reaction products B2H5Cl, BHCl2, B2H6, and HCl are separated from H2 by condensation in a liquid N2 trap at - 196 DEG C. HCl is volatilised at - 120 DEG  C. to - 107 DEG  C., and B2H6 is volatilised at 0 DEG C. under 2 atms., and as B2H6 is removed more BHCl2 and B2H5Cl is converted to B2H6.  BCl3 may be recycled.
Patent GB-182700-A (GB)
Title: Improvements in or relating to windmills
IPC: F03D1/02
Filed: 1921-07-22
Abstract: 182,700. Ward, S. A. July 22, 1921. No Patent granted (Sealing fee not paid) Oppositely-running rotor type; screw motors; working-fluid supply; regulating.-Two oppositely-rotating wind-wheels 7, 8 driving a vertical shaft 11 through bevel-gearing and mounted on a turn-table are enclosed in a casing 12 provided with a flared mouth 13 and having vanes 14 pivoted on radial axes which close under the action of a governor 16 or hand control 23, 24. The windmill is turned into the wind by means of a tail carrying a wind-wheel 25 which drives gearing 2S meshing with a circular rack 29 on the turn-table support. The closing vanes 14 are connected to a conical or stream-line casing 19 moving axially under the action of the governor or hand control. The wheel 8 may be of greater area than the wheel 7 to transmit equal power.
Patent GB-1358622-A (GB)
Title: Tobacco smoke filters
IPC: A24D3/10
Filed: 1972-04-27
Abstract: 1358622 Tobacco-smoke filters BRITISHAMERICAN TOBACCO CO Ltd 27 April 1972 19682/72 Addition to 131656 Heading A2C [Also in Division C3] A tobacco smoke filter comprises in at least one section thereof porous cellulose ester shreds packed in abutting proximity with one another, each shred having a surface area of 0.6-3.0 sq. m./gm. and a porosity of 65-90%. The ester may be cellulose acetate, propionate and/or butyrate. The shreds may be bonded to one another at random points, e.g. with a plasticizer. In the examples cellulose acetate was dissolved in a solution of acetone and a plasticizer (triethylene glycol diacetate and polyethylene of mol. wt. 600) and an aq. sodium chloride solution and corn starch were then added, the mixture was rolled into a sheet and cut into shreds which were heated in a solution of calcium chloride to expand the starch and rupture the pore walls, the slurry was cooled and alpha-amylase was added to solubilise the starch which was drained and washed out from the shreds, the dry shreds were packed into a filter tube.
Patent GB-868172-A (GB)
Title: Novobiocin and dihydronovobiocin injections
Filed: 1959-06-10
Abstract: An injectable pharmaceutical composition comprises novobiocin or dihydronovobiocin and an aqueous vehicle containing 5 to 90% v./v. of N,N-dimethylacetamide.  The antibiotics may be in the form of the free acid or a therapeutically active salt such as the sodium, calcium, potassium and amine salt.  Preferably a solution-suspension of two different antibiotic forms is used, e.g. novobiocin acid and calcium novobiocin in 85% aqueous N,N-dimethylacetamide.  The composition contains 0.5 to 50. and preferably 0.5 to 25%, of the antibiotic.  Optional ingredients are (a) other antibiotics such as penicillin, streptomycin, erythromycin, tetracycline, oxytetracycline and chlortetracycline; (b) corticosteroids such as hydrocortisone, prednisolone, prednisone, 6-methylprednisolone and 9a -fluoro-16a -hydroxyprednisolone; (c) vitamins such as folic acid, nicotinamide, B complex vitamins and ascorbic acid; (d) preservatives such as benzyl alcohol, chlorobutanol, methyl p-hydroxybenzoate and quaternary ammonium compounds; (e) isotonic agents such as lactose, sodium chloride, dextrose and sucrose; (f) stabilizers such as nicotinamide and (g) buffers.  Specifications 815,517 and 815,518 are referred to.
Patent GB-912374-A (GB)
Title: Hydraulic power transmission systems
Inventor: HAMBLIN HENRY JOEL
IPC: F16H39/02
Filed: 1959-07-10
Abstract: 912,374. Hydraulic transmission of power. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 7, 1960 [July 10, 1959], No. 19925/59. Class 69 (2). [Also in Group XXXI] An hydraulic power transmission for a tractor comprises a plurality of motors 6, 7 supplied with fluid pressure from a common supply 1, each motor being associated with an auxiliary pump 13, 14 which is driven at a speed dependent upon the speed of the motor and is connected in a circuit with the delivery of one pump feeding the inlet of the next, the delivery of each pump also being connected to pressuresensitive actuating means for a throttle valve 3 in the supply line to its respective motor. The supply, which, as shown, is a variabledelivery reversible pump 1 driven by the engine of the tractor, is connected by a pipe 2 to the throttle valve wherein the flow is divided and passes through ports 4, 5 to pipes connected to the motors 6, 7 which drive the wheels of the tractor, the exhaust fluid from the motors passing through ports 8, 9 in the valve to a pipe 10 connected to the inlet of the pump. The motors are connected by gearing 11, 12 to the auxiliary pumps which are connected to each other by pipes 15, 16 and through a reversing valve 19 to ports 23, 24 at the ends of the throttle valve. During normal operation, the pressures at the ports 23, 24 are equal and the spool of the valve is urged to a central position by springs 26, 27 so that the fluid is divided equally between the motors 6, 7. In the event of overspeeding of one of the motors because of wheel slip, the output of the associated auxiliary pump differs from that of the other pump so that the differential of the pressures at the ports 23, 24 at opposite ends of the throttle valve moves the spool to control the flow through the ports 4, 5 and the speed of the motors. Reverse drive is obtained by reversing the output of the pump, the control for the pump being linked to the reversing valve 19 for simultaneous actuation thereof. The spool of the throttle valve is formed with a groove engaged by an eccentric 33 on a rod 34 which is normally freely rotatable but can be manually rotated to control the distribution of fluid to the motors to provide power-assisted steering. In other embodiments, the auxiliary pumps may be driven by auxiliary hydraulic motors driven at a speed dependent upon the rate of flow to and from the respective main motor and the throttle valve be actuated by a servomotor operated by the pressure from the auxiliary pumps.
Patent GB-953011-A (GB)
Title: Automatic machine for cutting rolls of toilet paper
IPC: B26D3/16
Filed: 1961-06-02
Abstract: 953,011. Sawing. CARTIERA DI CAIRATE S.p.A. June 2, 1961 [June 9, 1960], No. 19936/61. Heading B5L. An automatic machine for feeding and cutting spools 58 of paper into rolls, such as toilet rolls, comprises a band or circular saw 10, a rotatable drum 24 having a number of containers 44 for carrying the spools, means 411 for pushing the spools endwise to a cutting position, and expandable spindles 20 for entering and holding the spools in the cutting position. The drum is supported by shafts 18, 33 mounted in bearing 4, 5 and has flanges 26, 27 to each of which are secured four pairs of straps 28, 30 connected to further flanges 19, 32. Sprockets 29, 35 are mounted between the straps for chains 41 carrying bearers 41<SP>1</SP> for moving the spools endwise, the sprockets 35 being connected by gearing 36, 38 to gears 39 which successively engage a 90 degrees toothed quadrant on a stationary disc 40 during rotation of the drum 24 by a motor 60 to advance each spool in its container 44 to abut the flange 19 as the drum is rotated to bring the spools into engagement with the saw. Each spindle 20 consists of a cylinder 53 and plunger 55 mounted in a sleeve 52 on the flange 19. The cylinders and plungers have cams 21, 22 engaging grooves in a stationary cylinder 23 so that as a spool is advanced to its cutting position, the cylinder and plunger of the associated spindle are moved inside the spool, the plunger then being moved relatively to the cylinder to enable a spring 57 to expand segments 56 and hold the spool while it is cut by the saw. Thereafter, the spindle is retracted so that a severed roll can be discharged by a platform 48 and shoot 61. Spools are successively fed to the drum from a conveyer by brackets 49 on chains 47, 48, the brackets lifting a spool into a container 44 each time an empty support is in its lower position and a pneumatically-operated slide 51 is moved to uncover an opening 62. The spools are retained in the containers by a stationary outer casing 45. The saw and its motor 9 are mounted on a frame supported by pivots 8 on uprights 6, the position of the saw being adjusted by a rod or turnbuckle 11.
Patent GB-814103-A (GB)
Title: Unwinding apparatus for beamed material
IPC: D03D49/08
Filed: 1956-06-27
Abstract: 814,103. Driving sectional warp beams. SUCKER G.m.b.H., GEB. June 27, 1956 [June 27, 1955], No. 19973/56. Class 142(1) When sectional warp beams 3 are being unwound to combine their threads into a single warp, differences between their initial diameters are allowed for by manual adjustment of variable-diameter V pulleys 12 driven by a common belt 18 from a variable-speed gear 20. Alternatively, each sectional warp may pass round a roller on a weighted lever, movement of which due to changes in the tension of the warp alters the diameter of the respective pulley 12.