baber/WOPTO huggingface dataset:
Patent GB-710253-A (GB)
Title: Improved apparatus for the heat treatment of material in sheet or web form
Inventor: GRIMSLEY GEORGE FREDERICK
IPC: D06C7/00
Filed: 1950-08-24
Abstract: Apparatus for treating textile material in web form such as platicising nylon fabric by steam has a heating chamber 1 having rails 15 on which runs a carriage 2 with horizontal frames 4 carrying rods 6 upon which the material is placed in zig-zag fashion.  A winding shaft 7 on the top frame has five pairs of flanges 8 between each of which is <PICT:0710253/IV(c)/1> <PICT:0710253/IV(c)/2> anchored and wound on the shaft a webbing band 9.  These bands are threaded over and round the rods 6 in zig-zag formation and the free ends are fastened to a common clamping bar 10 provided with clips to secure the ends of the fabric webs 11 so that rotation of shaft 7 causes the bands 9 to pull lengths of fabric 11 up and down over the rods 6.  Angle irons 19 on the chamber receive rollers 21 on brackets 20 on the carriage 2 so that a clutch element 22 on shaft 7 is brought into engagement with a corresponding element 23 on shaft 24 rotated through chain drive 26 from a reversible electric motor 27 mounted on the cabinet. The chain 26 carries an abutment 30 for co-operation with a microswitch 31 which through a timing and reversing gear 32 controls the motor 27.  Steam enters the chamber through inlet pipe 37 and is exhausted at 39, a drain 40 being provided in the bottom of the cabinet.
Patent GB-1218481-A (GB)
Title: Improvements relating to vehicle-brake systems
IPC: B60T8/1761
Filed: 1969-04-24
Abstract: 1,218,481. Controlling fluid-pressure brake systems. DAIMLER-BENZ A.G. 24 April, 1969 [24 April, 1968], No. 20982/69. Heading F2F. A vehicle-brake system comprises a first normally open valve 12 in a pressure fluid duct from a main cylinder (not shown) to a brake cylinder 13 for a vehicle wheel, a second normally closed valve 16 connected between the valve 12 and cylinder 13 and leading to a pressure fluid reservoir 17, a first wheel slip-measuring means 24, 26 connected to valve 12 and responsive to a low slip value and a second slip-measuring means 24, 27 connected to valve 16 and responsive to a higher slip value. Valve 16 can also be controlled by a device 28 which measures rotary acceleration. The low slip value is about 5% and the higher slip 15% so that for 5% slip the pressure in cylinder 13 builds up through valve 12 and if a higher slip is reached the pressure remains constant but if the slip exceeds 15% brake fluid will be discharged through valve 16 until the slip measured through 24, 26 is again is again lower than 15%. When valve 16 has once opened the fluid flows into reservoir 17, depresses a piston 18 and compresses a spring 19 which during normal travel when there is no brake pressure forces the fluid back through pipe 22 and non-return valve 23 into pipe 11 to be again available. To measure the slip a voltage generator G1- Gn is associated with each wheel, the generators feeding a maximum voltage line 31 through rectifier diodes 29 and two amplifiers 32, 33 also being associated with each wheel and responding to slips of 5% and 15% respectively to operate electromagnetic valves 12, 16. Valve 16 is also controlled by generator G1 through a capacitor 36 and operational amplifier 37 which measure the rotary acceleration of the first wheel.
Patent GB-651045-A (GB)
Title: Improvements in or relating to grid electrodes for electric discharge devices
IPC: H01J19/38
Filed: 1948-08-10
Abstract: 651,045. Making grids for thermionic valves. M-0 VALVE CO., Ltd., and STAERCK, T. H. Aug. 10, 1948, No. 21095. [Class 83 (ii)] [Also in Group XL (a)] A grid for a thermionic valve as shown in Fig. 5, is made by winding an elliptical helix round two supports 5, applying inward pressure to opposite sides of the turns at points approximately midway between the supports to deform the helix, removing this pressure, and finally applying further inward pressure at points 9 near the supports so that the adjacent half turns cross each other near each support.
Patent GB-449120-A (GB)
Title: Improvements in or relating to exposure gates of magazines for motion picture film
IPC: G03B17/26
Filed: 1934-12-19
Abstract: 449,120. Kinematograph apparatus. KODAK, Ltd., Kingsway, London.-(Assignees of Wittel, O.; 343, State Street, Rochester, New York, U.S.A.) Dec. 19, 1934, No. 21125/35. Convention date, Dec. 20, 1933. Divided out of 449,092. [Class 97 (i)] In a magazine, which comprises a casing formed by a lateral wall connecting two side walls and an exposure gate which consists of a resilient member 57 adapted, through a member 55, to hold the film against the aperture in the side wall, buckling of the film loop, which is maintained between the gate and the take-up mechanism, is prevented by an extension 59 of the member 57. The casing consists of a fixed side wall flanged to form the lateral wall which is provided with a rim adapted to engage with a detachable side wall. The member 57 is held by pins 56 on the fixed wall. A shaft 33, mounted on the fixed wall, is fitted with a sprocket 32 and an annular toothed rim 35 through which., together with pinions 36, 37, the take-up spool 18 is driven. The film passes in a superposed layer over the sprocket to the take-up spool. Embossings 39 provide clearance between the transmission gear and the film. Rollers 40 and a stud 43 press the film into engagement with the sprocket. Reverse rotation of the sprocket is prevented by a wire spring 44 mounted on a spindle 41 and engaging at one end with the lateral wall. An auxiliary wall 46 is provided on the lateral wall. A film claw 62 is actuated through an eccentric 63, and a movable slide 47, which is located between the two walls and is operated by projection 48, is adapted to close the exposure aperture and the aperture through which the claw 62 projects.
Patent GB-295129-A (GB)
Title: Improvements in looms for weaving plush or pile fabrics
IPC: D03D39/00
Filed: 1927-08-11
Abstract: 295,129. Crabtree, D., and Crabtree, T. H. Aug. 11, 1927. Pile-fabric looms having hooks to form the pile. Relates to the means for moving the hooks laterally to engage the warp threads or for moving the latter to engage the hooks. A large cam 2, shown in plan in Fig. 2, is used engaging a lever 4 connected by a rod 5 to a lever 6 loose on a shaft 7 but connected by a removable pin 9 to a lever 8 fast on the shaft 6. This carries an arm 10 having two bowls 11, 11<a> engaging a slot 12a in a member 12, which transmits motion to the sliding parts causing oscillation of the hooks as described in Specification 255,200, or it is used for oscillating the reed blades. ' The bowls 11, 11<a> are mounted upon antifriction ball bearings on studs which can be adjusted in slots in the lever 10 to take up wear, whereby the bowls 11, 11<a> can be kept in constant contact with the walls of the slot to give an even motion to the member 12. The slot 12<a> allows the member 12 to reciprocate at right angles to the path in which it reciprocates to oscillate by means described the hooks to bring them into position to engage the warp threads. Further to regulate the movement of the member 12, a bolt 13 connected therewith passes through a stop piece 14 fixed on the hook supporting member and is provided with check nuts 15, 15a.
Patent GB-696340-A (GB)
Title: Improvements in and relating to electrical distribution boards
IPC: H02B1/21
Filed: 1951-09-07
Abstract: In an electrical distribution board (see Groups XXXVI and XXXVII) in which bus-bars &c. are embedded in a body of insulating material, the material comprises 36 per cent of a resinous material such as polyvinyl chloride or a copolymer thereof such as a copolymer of vinyl chloride and vinyl acetate, 27 per cent of a resinous plasticizer such as polybasic acids esterified with polyhydric alcohols or styrene polymers, and 18 per cent of a plasticizer such as di-octyl phthalate, di-butyl phthalate, dihexyl phthalate, together with 8 per cent of a stabiliser such as lead stearate, lead silicate, antimony oxide, lead phosphate, blue lead or mixtures thereof, and 10 per cent of a filler such as calcium carbonate. Other proportions may be used.  In manufacture of the board as disclosed in Specification 695,922, the bus-bars &c. are immersed in the liquid plastic composition at atmospheric temperature and the temperature is then raised to 180 DEG  C. to cause permanent hardening of the composition.
Patent GB-617112-A (GB)
Title: Improvements in electric gas discharge tubes
IPC: H01J61/56
Filed: 1946-07-16
Abstract: 617,112. Thermal switches. PHILIPS LAMPS, Ltd. July 16, 1946, No. 21223. Convention date, June 16, 1942. [Class 38 (v)] [Also in Group XL (a)] A thermal switch in an electric discharge tube, which opens or closes contacts in an electrical circuit in response to the heat from an incandescent electrode, .comprises a semicylindrical bimetallic element 9 which shields the electrode 2 in the direction of the electrode 3. The bimetal 9 moves the lower end of a wire 11 into or out of contact with the end of the supply wire 13, and is supported from the electrode support wire 5. On expansion of the bimetal 9 the wire 11 is moved against a wire contact 18 on the electrode support wire 4, to short-circuit the electrode 2 after initiation of the discharge. Specification 347,011, [Group XL], is referred to.
Patent GB-243821-A (GB)
Title: Improvements in or relating to looms for the manufacture of pile fabrics
IPC: D03D39/02
Filed: 1924-09-08
Abstract: 243,821. Venail, P. Sept. 8, 1924. Shuttle races. - In a vertical loom for making pile fabrics, a shuttle race is provided by a comb 108, which is advanced at intervals by eccentrics on a driving shaft acting through levers 112 and links 111.
Patent GB-937402-A (GB)
Title: Improvements in or relating to apparatus for the manufacture of sachets
IPC: B65B9/12
Filed: 1959-06-22
Abstract: 937,402. Seaming non-metallic sheet material. A. H. CROUCHER. April 19, 1960 [June 22 1959], No. 21285/59. Class 42 (1). [Also in Groups XVII and XXIV] Apparatus for sealing increments of liquid &c. in thermoplastic tubes to form sachets comprises grippers advancing the tube between heated sealing jaws, the grippers, jaws and initiation of a heating cycle in the jaws being controlled by cams on a single shaft. The tube feeding jaws 35 are mounted on a horizontally reciprocating carriage 45a moved by variable strobe linkage operated by a cam 17 and are opened and closed by a member 71. The member 71 is raised or lowered by parallel links at its ends pivoted by levers and a cam 18 and contacts an arm on the jaws. Further jaws 36 operate in unison with the jaws 35 to grip a belt 37, the belt passing around and rotating intermittently a drum 38 which discharges the completed sachets as they fall on it from a shoot (Fig. 3, not shown). The sealing jaws comprise an upper fixed platten 11 which is cooled by fan 14, and a lower platten 12 movable vertically by a cam 16 and having hydraulic means regulating the pressure it may exert on the filled tube (see Group XXIV). The regulating means includes an adjustable pressure relief valve. As the platten 12 rises, adjustable stops 31 contact micro-switches 32 to switch off the heating means, originally switched on by a cam 19 operating a micro-switch 33. The tube may be formed from a single web or two opposed webs.
Patent GB-617279-A (GB)
Title: Improvements in protection for electric control apparatus
IPC: H02H3/36
Filed: 1946-07-16
Abstract: 617,279. Protective cut-out systems. BRITISH THOMSON - HOUSTON CO., Ltd., and STEWART, C. July 16, 1946, No. 21299. [Class 38 (v)] A control relay za1 energized from a threephase supply through impedances zb1, zc1 in " star " connection is protected against faulty operation, due to failure of one of the impedances by connecting the star-point n1 through a relay P to the star-point n2 of a second network having leg impedances za2, zb2, zc2 proportional to za1, zb1, zc1. Each of the networks may be fed through a potential transformer (Fig. 2, not shown) or a phasesequence segregating network (Fig. 3, not shown), in which case the relay P will also operate on failure of either of the transformers or segregating networks. Specification 21732/00, [Class 38], is referred to.
Patent GB-723703-A (GB)
Title: Improvements in or relating to releasable ratchet mechanism
IPC: B65H75/44
Filed: 1953-08-17
Abstract: 723,703. Locking rotary elements. PILLIN, Ltd., J. B., and MARLEY, N. F. Aug. 17, 1953 [Aug. 26, 1952], No. 21395/52. Class 80 (4) [Also in Group XXX] A detent mechanism for locking a member against a bias, such as for locking in a hoseextended position a spring-returned hose reel, is automatically ineffective when the bias is allowed to operate at speed, i.e. when the hose is being re-wound by its return spring drum. In the hose reel shown, the inner end of the hose communicates with the hollow spindle on which it rotates so as to receive the fluid to be dispensed. The mechanism comprises a plate 17 concentrically secured to the reel and having a number of non- radial slots 18 which co-operate with a pawl 31 which is fixed on a disc 30 eccentrically pivoted at 27 so that the pawl is gravity-biased to ride on the periphery of the plate 17, with the result that when the required amount of hose has been paid out, the pawl enters a slot 18 to lock the reel against the action of the spring drum, Fig. 2 (not shown). Adjacent each slot 18. is a rounded projection 25 formed on the plate 17. When the hose is to be re-wound, it is pulled against the spring bias to withdraw the pawl from its slot and is then released, whereupon the spring drum rotates the reel and the projections 25 successively knock the pawl clear of the slots, the inertia of the disc 30 being such that at each knock the slot has passed before the pawl returns. The plate 17 has a number of holes 34 so that it may be bolted to the reel in various positions. Similarly, the disc 30 has a number of holes whereby the pawl 31 may be secured thereto. A stop 33 on the disc 30 co-operates with the plate 17 to prevent the disc rotating beyond a dead centre position.
Patent GB-256067-A (GB)
Title: Improvements in or relating to the lubrication of internal-combustion engines
IPC: F01M1/04
Filed: 1925-08-26
Abstract: 256,067. Low Engineering Co., Ltd., O'Brien, H. S., and Low A. M. Aug- 26, 1925. Force-feed lubricating.-In a two-stroke internal-combustion engine in which lubricant is conveyed to the cylinders &c. with the fuel, lubricant collecting in the crank case b is forced by the compression therein through a pipe or channel i leading direct from the base of the crank case to a crank-shaft bearing j, a non- return valve g<1> being provided at the inlet to the pipe or channel. The pipe may be branched so as to supply the bearings on both sides of the crank case. Surplus lubricant returns to the crank case from the bearings through channels k. Members e, e<1> may be used to increase the compression in the crank case, as described in Specification 257,099, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of].
Patent GB-1183313-A (GB)
Title: Manufacture of Laminated Tubing
Inventor: DOWNING ANTHONY DAVID
IPC: B29C48/09
Filed: 1966-05-13
Abstract: 1,183,313. Seaming. IMPERIAL CHEMICAL INDUSTRIES Ltd. 19 April, 1967 [13 May, 1966], No. 21416/66. Heading B5K. [Also in Division F2] A method of making a laminated tubing comprises taking a strip 6 formed of sheet material, e.g. metal foil, paper or cardboard, cloth of plastics films and having a heat seal coating, e.g. polythene, on at least one of its surfaces, curving the strip into elongate tubular form with the edges of opposite surfaces of the strip either adjacent or overlapping one another, and extruding upon the outer surface of the tubing so formed a coating 10 of molten plastics material, the molten plastics being applied at a temperature sufficiently high to cause melting of said heat seal coating but not sufficiently high to cause the melting of the sheet material, and cooling the tubing at least in the position of the joint to cause the adjacent or overlapping edges to become adhered together by the heat seal coating. If a plastics strip is used, the heat sealable coating and the molten plastics should both have a melting point lower than that of the strip. As shown, a strip 6 of metal foil is drawn, by haul-off rolls 8, through a forming shoe 7 around a mandrel 1, which has water circulating inlets and outlets 2, 3 and a central air tube 4, to form a tube with its opposite edges overlapping one another axially of the mandrel. Molten plastics material, e.g. polythene, is extruded by an extruder 9 to form a coating 10 on the outer surface of the formed strip which has been treated, on both sides, with a heat seal coating. The longitudinal joint along the formed tube is pressed against the mandrel 1 by a wheel 12 provided with a non-stick coating to ensure that the edges of the strip are stuck together as the heat seal coating cools to the solid state. Cooling air from the pipe 4 may be arranged to impinge on the tubing beyond the wheel 12. The tube is collapsed by the rolls 8 which only contact the central part of the tubing which can be cut into suitable lengths to provide, e.g. tooth paste tubes. The tube may be formed by winding the strip spirally on the mandrel, and, if it is not desired to collapse the tube, the rolls 8 may be replaced by an endless belt haul off.
Patent GB-860220-A (GB)
Title: Mechanical orientation of magnetically anisotropic particles
IPC: C04B35/26
Filed: 1959-06-23
Abstract: 860,220. Magnetic compositions; magnets; magnetizing apparatus. LEYMAN CORPORATION. June 23, 1959 [July 15, 1958], No. 21504/59. Classes 35 and 38 (2). A magnetizable material is made by dispersing fine, magnetically anisotropic particles in a resinous or plastic base material, subjecting the dispersion to a shear stress to align the particles, and hardening or allowing to harden the base material. The magnetic material may be barium, strontium or lead ferrite (e.g. BaFe 12 O 19 ) or single domain iron particles. The base material may be rubber, polyethylene, plasticized p.v.c. or may be a thermosetting material. The shear may be imparted by passing through an orifice or by rolling between rollers 2, 3 which may rotate at different speeds to give a sheet 0.03 inch thick. The sheets so formed may be cut, stacked, compressed, cured and magnetized to form permanent magnets. In an example, barium ferite is formed by firing a mixture of BaCO 3  and Fe 2 O 3  at 1250‹ C. for 1 hour and milled to domain size, i.e. 0.5 Á. This is included in a rubber mixture which contains vulcanizers and accelerators and passed through the rollers. The magnetic powder comprises not more than 70% of the volume of the dispersion. As shown in Fig. 3, strips 40 of uncured material are compressed in a mould 42 between members 43 and heated to cure, the members 43 also acting as polepieces for magnetizing the body.
Patent GB-806321-A (GB)
Title: Improvements in or relating to seat mountings
Inventor: HARRISON JOHN
IPC: B60N2/14
Filed: 1956-07-12
Abstract: 806,321. Seats. CHAPMAN, Ltd., A. W. June 4, 1957 [July 12, 1956], No. 21622/56. Glasses 52(1) and 52(2) A seat is mounted on a resilient pedestal, the resistance of which may be varied by operation of a member 28 external to the pedestal without variation of the effective height of the seat. The pedestal comprises tubular members 1 to 3, mounted on a base 4, members 2 sliding telescopically on member 1 and member 3 carrying tracks 11 on which the seat slides and being fixed relative to member 2. A skock absorber C is secured at the upper end to member 2 and the lower end carries a cylinder 22 the bottom edge of which forms a cam surface engaged by :a pair of cams 26 mounted in the base 4 and turned by a hand lever 28. Rotational movement of member 2 is prevented by a pin 36 on member 2 sliding in an axial slot 37 on member 1. The pin may be removed from the slot by a pedal 44. A similar connection between member 2 and 3 permits vertical adjustment of the seat, the pin 47 carried by member 3 engaging a series of holes in member 2. A bolt 62 sliding in slot 63 fixes members 2 and 3 axially.
Patent GB-643339-A (GB)
Title: Improvements in and relating to building structures
IPC: E04B1/04
Filed: 1947-08-07
Abstract: 643,339. Floors; walls; slabs. BATA, NARODNI PODNIK. Aug. 7, 1947, No. 21683. Convention date, April 19, 1946. [Classes 20(iv) and 87(i)] A building is constructed o reinforced concrete slabs 1 of storey height and corner pieces 15, Fig. 2, secured together by bolts 5, 13, 16 and stirrups 26 Fig. 4. Fig. 2 is a horizonta and Fig. 4 a vertical cross sec tion. The slabs 1 have streng thening ribs 2 and side flanges 3 having holes for the bolts The upper edges of the slabs 1 have projecting flanges 10, Fig 4, to support the floors 17 of the building. The joints of the walls and floors are sealed by wooden slats 9 gripped between the slabs and which form nail ing strips. The floor is formed of arched blocks 17 having rib: 19 and end lugs 27 resting on the flanges 10 or partition walls 28. The partition walls 28 are formed of frames filled with light concrete and have a widened upper part 29 to support the superimposed frame and the floor. The foundation curb 33 may be prefabricated. A window frame 39 rests on a parapet 38 and is sealed by packing 40. Vibration insulating material 41 is placed between the edges of the slabs. The interior surface of the walls is covered first with a damp-proof layer such as aluminium foil or paste-board, then heat insulation and finally plaster board &c. The ceilings are of lignate attached to the wooden slats between the blocks. The cavities above the arches 18 of the floor blocks are filled with slag in which wooden pads are embedded on which an insulating layer and then floor boarding are fixed.
Patent GB-516159-A (GB)
Title: Improvements in or relating to collapsible containers for liquids
IPC: B65D37/00
Filed: 1938-07-21
Abstract: 516,159. Tanks. McCULLOCH, M. L., and SPORTAPOOLS, Ltd. July 21, 1938, Nos. 21724 and 28907. [Class 69 (i)] In a collapsable container for liquids, the base of the container carries anchoring means for holding down the end of a hose pipe; means for supporting the pipe are also provided. In Fig. 2, a canvas, frusto-conical container, self-supporting when full, has rings 13 secured to a panel 14 stitched to the base 11 and cords 15 are threaded through the rings and have a noose 16 at one end and a buoyant handle 17 at one or both ends. In other forms, the cords are stitched centrally or the base has rings &c. of canvas &c. through which the end of the hose pipe is threaded. The hose is supported by a collapsable tripod comprising legs 19 fitted in pockets 20 on the container wall, the pockets having tapes &c. 21 for connection to a fixture; a stay 18 is passed over each leg and secured to an adjacent leg by a buckle and a fixed elongated ring. In Fig. 3, the hose supports comprise inverted U-members with the limbs 25 fitting in pockets 27 and curved cross-members 26 with anchoring straps 32; a stay 29, with a padded lower end 31 bearing on the container base, is pivoted to one limb 25. The upper ends of the U-members or single legs may be connected by stays folding in one direction. The base of the container may be rigid. The container may be square, elliptical &c. have a buoyant ring at its upper edge and have a cover. Specification 378,488, [Group I], is referred to.