baber/WOPTO huggingface dataset:
Patent GB-495467-A (GB)
Title: Improvements in and relating to the production of films
IPC: C09F5/00
Filed: 1937-02-08
Abstract: Film material is obtained by reacting fatty oils or acids in a thin layer with sulphur or sulphur chloride.  The oil mixed with sulphur may be spread over glass or other plates or over fabrics and heated; but preferably a film of oil is exposed to vapour of sulphur monochloride advantageously carried by a current of purified air. Fatty materials treated include linseed, rapeseed, perilla, wood, tall, soya, almond, hemp, " maw " seed, fish, poppy, and castor oils, artificial drying oils, blown or thickened oils, the corresponding fatty acids or artificial esters thereof, and distillation-residues, e.g. stearine-pitch.  There may also be present: accelerators of rubber vulcanization; softening agents, e.g. tricresyl phosphate or isobutyl ester of phthalic acid; hardening agents, e.g. vinyl acetate or artificial resins, or fatty acid esters of cellulose; driers, e.g. cobalt or lead resinate; dyestuffs, e.g. soudan dyes, or cinnabar which also accelerates the reaction; raw or synthetic rubber.  The films may be used as packing material, as wrapping for moist bandages, as substitutes for thin glass plates, and for making containers.  In examples: (1) perilla oil colored by cinnabar or 0,5-3,0 per cent of a soudan dye is spread on a glass plate or a smooth roller at the rate of 100-150 gm. per sq. meter of surface, and exposed in an evacuated chamber to vapour rising from liquid sulphur chloride therein, or in a chamber through which a current of air loaded with sulphur chloride is passed; (2) ordinary or thickened linseed oil is mixed with 5 per cent of vinyl acetate, oil-soluble resin, or cellulose ester, and treated with sulphur chloride vapour carried by a current of air; (3) thickened wood oil or synthetic esters thereof are mixed with 5 per cent of tricresyl phosphate and treated as in (2).
Patent GB-607484-A (GB)
Title: Improvements in lathes
IPC: B23B3/02
Filed: 1946-02-05
Abstract: 607,484. Portable turning - apparatus. WOOLFSON Ltd., P., and BROWN, J. P. Feb. 5, 1946, No. 3676. [Class 83 (iii)] A bench lathe is provided with a bed composed of parallel members 1 of channel section which are bolted to brackets 2 and engage shaped projections 6 on the bases of the headstock 3 and the tail-stock 5 to locate and hold them.
Patent GB-341734-A (GB)
Title: Improvements relating to ball or roller bearings
IPC: F16C33/54
Filed: 1930-02-04
Abstract: 341,734. Bearings. ABLETT, C. A., Woodburn, Wilmslow, Cheshire, KAY, S., Old Hall Cottage, South Wootton, and COOPER ROLLER BEARINGS CO., Ltd., both in King's Lynn, Norfolk. Feb. 4, 1930, No. 3742. [Class 12 (i).] Ball and roller bearings, cages for.-The rivets or bolts or, as shown, studs 22 used for holding the retaining ring 14 to the body 10, are secured in the body part by casting the metal of the latter around them.
Patent GB-672241-A (GB)
Title: Hosiery drier
IPC: D06F59/06
Filed: 1949-02-10
Abstract: 672,241. Hosiery driers. PORTEOUS, Z. D. May 10, 1950 [Feb. 10, 1949], No. 3743/49. Class 34(i) An adjustable hosiery drying frame comprises a heel portion A and a toe portion D each having a rack member B with teeth spaces C which fit on to rivets on the other portion to lock the frame after adjustment. The device may be made of sheet metal or plastic material, and each part may have more than one toothed member.
Patent GB-1159632-A (GB)
Title: Tubular Film Extrusion Apparatus
IPC: B29C48/10
Filed: 1968-01-24
Abstract: 1,159,632. Tubular film extrusion die. FMC CORP. 24 Jan., 1968 [2 March, 1967], No. 3770/68. Heading B5B. A die for extruding molten organic polymeric thermoplastic material to form tubular film comprises a die body 11 (Fig. 1) having an opening 13 within which a mandrel 15 is supported by a series of integrally formed pads 17 (Figs. 1 to 3). The mandrel 15 has an opening 19 through the wall of which bolts are inserted for securing the mandrel 15 in place. The die body 11 is connected by elbow 23 and coupling 25 to the barrel 27 of a conventional extruder. Molten thermoplastic material is fed from the extruder into the opening 13 of the die body 11 and issues from the annular orifice 33 as a tubular film 35. As in conventional procedures, the film 35 may be inflated by a gas which is delivered into the mandrel opening 19 through a conduit 37 extending through one of the bolts 21. The tubular film is cooled and thereafter passed through the nip of the rolls 39 and 41 in the usual manner. The mandrel is shaped to conform with the shapes of the conical and discharge sections 47 and 45 of the passage through the die body and the mandrel supporting pads engage with the wall of the conical section 47. The mandrel supporting pads 17 are of conventional streamlined shape and are each encased within a sleeve 49 of an inert, non-metallic, heat-resistant polymeric material which can withstand the extrusion conditions. Thus it is chemically inert at the extrusion temperature to the thermoplastic material being extruded, and is not soluble in or softened by the latter at the extrusion temperature. The sleeves 49 preferably consist of polytetrafluoroethylene. The sleeves may be of uniform thickness and may therefore conform in shape to the pads 17 or they may differ therefrom, for example, as shown in Fig. 3, to improve the flow of the molten thermoplastic material as it travels past the pads.
Patent GB-971652-A (GB)
Title: Improvements in or relating to welding transformers
IPC: H01F38/18
Filed: 1962-02-01
Abstract: 971,652. Electric transformers. YODER CO. Feb. 1, 1962 [May 12, 1961], No. 3862/62. Heading H1T. A rotary welding transformer comprising a hollow rotary shaft 10, with bearings 11, 12, supports a welding head 15 and slip-rings 16, the welding head including a hollow U cross-section annular enclosing member 24 which is also the secondary winding, the inner and outer edges 25, 29 having an electrical conductive path to rotary electrodes 43, 41 respectively. The primary winding 35 wound on toroidal core 34 of laminated iron in ribbon wound' form is spacially fixed, 36, within and keyed to the enclosing member by keys 37. Hermetic sealing of the space 78 between the winding 35 and enclosing member 24 is assisted by sealing rings 75, 76, 77 which space is partially filled with an inert and stable liquid di-electric whose vaporization assists with cooling the transformer. The outer surface of the secondary may be water cooled. A temperature-responsive switch 70, connected via leads 69 to control slip-rings 66, 67, is received at its inner end by a thermally non-electrically conductive cartridge 71 pressed into contact with the primary winding. Electrode support 21 is secured to an inner mounting ring 19 by a plurality of radial keys 22, 23. The inner limb of the U-section enclosing member 24 abuts, and is electrically conductive with, the electrode support 21 being secured thereto by bolts 26, the outer limb 27 of said enclosing member is secured to electrode support 21 by bolts 30 extending through insulating spacers 31, 32, the support 21 and limb 27 being mutually insulated by a circumferential extending insulating layer 29. Electrical connections to the primary winding are made via two pins 46 and 47 (not shown) which extend through an insulating and fluid sealing bush 48, the outer ends of the pins being secured by a rigid electrically conductive clamp arrangement 49 which extends to a second clamp arrangement (not shown) for securing the ends of the conductors 53 leading to slip-rings 60, 64.
Patent GB-1417868-A (GB)
Title: Controlled release door holder
IPC: E05F15/20
Filed: 1973-01-25
Abstract: 1417868 Door closer STANLEY WORKS 25 Jan 1973 [26 Jan 1972 9 Aug 1972] 3864/ 73 Heading E2M A door holder 10 comprises a fluid cylinder 18 containing a piston 20, means 40, 42 for connecting the piston to a door frame 44 (the holder 10 being mounted on a door 16) and a spring 30 acting on the piston so that the said means urges the door towards the closed position, and controlled means for governing the flow of fluid between those parts 18f, 18s of the cylinder separated by the piston. Arm 40 is fast with a shaft 38 carrying a pinion 36 meshing with a rack 32 on the piston so that as the door is opened the piston is moved to the left (as shown), compressing the spring and forcing fluid out of chamber 18f and into chamber 18s, by way of reservoir 46 and passage 50. This passage includes a one-way check valve 52 so that the door is prevented from closing unless a force sufficient to force fluid through pressure relief valve 56 is applied to the door. There is also provided a solenoid valve 62 which is closed when current is supplied from a source 70. If the current is cut off, by a heat or smoke sensor 12 or other alarm, then the valve 62 is opened and the spring 30 causes the door to close. The current can also be cut off and the valve 62 opened by a switch 92 actuated by a cam 90 on the shaft 38, when the door is almost closed, to aid in latching it.  Specifications 1417869 and 1417870 are referred to.
Patent GB-720693-A (GB)
Title: Improvements in or relating to pneumatic control systems
IPC: F15B9/10
Filed: 1953-02-11
Abstract: 720,693. Fluid-pressure servomotor-control systems. FOXBORO CO. Feb. 11, 1953 [Feb. 12, 1952], No. 3881/53. Class 135. A pneumatic control system for positioning a valve comprises a device for receiving a pneumatic input signal and actuating a nozzle-baffle assembly in accordance therewith, a relay for boosting the volume of the output of the nozzle baffle assembly and applying it to a motor which acts on the stem of the valve, a restricted pipe by-passing the relay, and a member movable with the valve stem and acting back on the nozzle-baffle assembly. The greater part of the movement of the valve is thus made quickly, but the final movement to bring it into correspondence with the input signal is made only slowly. In an embodiment, an input signal is applied to a bellows 17 which acts on one end of a floating lever 24. The latter actuates a spring-loaded flapper 28 to control the pressure upstream of a nozzle 31 which discharges air received from a pressure supply 33. The control pressure is applied to a diaphragm in a relay 13, the diaphragm actuating inlet and exhaust valves 35 to give an amplified output control signal in a line 37 leading to a relay 14. The signal is here applied to a diaphragm 39 to control the supply of pressure air from a line 42 to a line 43 leading to a motor 10 or its exhaust from the motor to port 41. Relay 14 gives only a 1: 1 amplification in pressure but allows a large volume of pressure fluid to be supplied to or exhausted from the motor. As the pressure drop across the relay falls, the inlet and exhaust valves in the relay close and only a restricted passage leading to the motor is then provided by a line 38 by-passing the relay. The line 38 contains a valve 48 by which the degree of restriction provided can be adjusted. The stem 49 of the valve actuated by the motor is connected . by a lever 15 to floating lever 24 to provide a repeat-back effect and so ensure the correspondence between the input signal and the position of the valve.
Patent GB-1139641-A (GB)
Title: Improvements in and relating to vehicle brakes
Inventor: HOLT GORDON JOHN
IPC: F16D65/22
Filed: 1965-01-29
Abstract: 1,139,641. Brake-applying mechanism. GIRLING Ltd. 28 Jan., 1966 [29 Jan., 1965; 27 Oct., 1965], Nos. 3922/65 and 45398/65. Heading F2E. A wedge-type brake-applying mechanism, particularly for an internal shoe drum brake, comprises a housing containing cylindrical bores 16 receiving tappets 38 adapted to engage the brake shoe webs 58, the housing being secured by bolts to the brake backing plate, a wedge member 30 for moving the tappets in opposite directions, the wedge and tappets having complementary inclined surfaces, rollers 40 between these surfaces and a cage 46 for the rollers which is arranged for both sliding and tilting movement relatively to the housing, the wedge itself being arranged for independent sliding and tilting movement. In the embodiment of Fig. 2 the cage is formed from sheet metal and comprises a pair of arms 50 having holes 54 to accommodate the roller spindles 41, and a pair of arms 52, in planes at right angles to those of arms 50, the lower ends of arms 52 having part-cylindrical ends 56 which engage the interior wall of a rectangular-section sleeve portion 26 of the housing. The wedge slides in a slotted trunnion 28 which is rotatable about an axis transverse to the wedge, sliding of the wedge being limited by a shoulder 34 of the wedge. The plungers 38 are formed with slots 42 cooperating with fixed pins 44 to limit both inward and outward movement, the outward limit enabling the wedge to react against one of the plungers if the corresponding shoe is incorrectly adjusted, to apply the other shoe. A removable cap 22 of the housing is shaped to provide inclined surfaces 24 which centralise the wedge when the brake is released. The wedge actuator may be incorporated as an alternative mechanical applying means in a drum brake which includes an hydraulic cylinder between the shoe ends (Figs. 5, not shown), the plungers then engaging shoe-carrying levers (79) instead of the shoes (70) direct. In a modification (Fig. 6, not shown), the cage (66) is of plastic material and the portions corresponding to the ends 56 are part-spherical, the wedge also having a part-spherical lower end portion (60) which takes the place of the trunnion and enables the sleeve (26) to be machined with a bore of circular section in place of the rectangular-section bore of the previous embodiment. A separate actuating rod (64) is connected with the end (60) of the wedge by a swivel joint having part-spherical co-operating surfaces. In a further embodiment (Figs. 8-10, not shown), the cage is of simple U-shape bent from a flat sheet with the free ends provided with pivots (138) which are guided for sliding in slots (142) formed in a plug member (144) fixed in the housing. The roller spindles (136) are in this case mounted in open-ended slots (134) in the cage.
Patent GB-410495-A (GB)
Title: Improvements in connection with miners' safety lamps or the like
IPC: F21L23/00
Filed: 1932-08-16
Abstract: 410,495. Miners' &c. safety lamps; wick burners. HAILWOOD, E. A., Beacon House, Texas Street, Morley, near Leeds. Aug. 16, 1932, No. 3989/34. Divided on 408,994. [Classes 75 (i) and 75 (iv).] In a miner's or like safety lamp provided with a burner dome D to enter the lower aperture of a glass combustion tube C, the burner F and the lower part D<4> of the dome, instead of being completely circular in plan, each has a substantial portion of its periphery flattened so as to ensure that the wick tube F is always in correct alignment with the slot D<7> in the dome. The engaging parts of the burner and dome may be substantially semi-circular, and the dome may be slidable vertically on the burner and be locked in position by means of a screw D<5>. Free access of air to the burner may be provided by perforations in the dome or by gaps D<6> between the legs D<3> which connect together the upper and lower parts of the dome. The supporting flange D<2> for the glass C may be carried by the dome, with or without an interposed seating ring, and such flange may also carry a reflector D<8>. The lamp chimney may be weighted to bear down upon the combustion tube. The oil vessel V may carry a lighting pin P or the dome may carry a lighting pin adapted to contact with a second pin passing through the oil vessel.
Patent GB-778491-A (GB)
Title: Improvements in or relating to electric cables
IPC: H01B7/00
Filed: 1956-02-08
Abstract: 778,491. Cables. COMPAGNIE GENERALE D'ELECTRICITE. Feb. 8, 1956 [June 20, 1955], No. 4001./56. Class 36. [Also in Group XXXVII] In a cable comprising insulated power conductors 1, 2, 3 and an insulated earth conductor 6 embedded in a semi-conducting mass 4 which constitutes a screen insulated from earth, the screen 4 has a high resistivity and the insulation 7 of the earth conductor 6 is surrounded by a semi-conducting sheath 13 of low resistivity. The screen 4 may also be enclosed in a semiconducting sheath 14 of low resistivity which is urrounded by insulation 15. In operation the screen 4 is connected, through a conductor 5, to a low voltage current source 8 connected to earth and to a relay 9 controlling a switch which disconnects the supply to the power conductors in the event of a fault. The sheaths 13 and 14 reduce the contact resistance at faults occurring between the earth conductor 6 and the screen 4 or between the screen 4 and an earthed foreign body penetrating the screen, thus increasing the current due to such fault to ensure more reliable tripping of the relay 9 without increasing the current due to a fault between a power conductor and the screen 4.
Patent GB-1271221-A (GB)
Title: Electrophotographic materials
Inventor: DESELMS ROY CHARLES
IPC: G03G5/06
Filed: 1968-01-25
Abstract: 1,271,221. Electrophotographic material. EASTMAN KODAK CO. 18 Sept., 1969 [25 Jan., 1968], No. 4011/68. Heading H1K. [Also in Division C2] An electrophotographic material comprises a supported layer of a photoconductive composition comprising an organic film forming binder and a cycloheptenyl compound. The film forming binders are prepared from styrene-butadiene copolymers; silicone resins; styrene-alkyd resins; silicone-alkyl resins; vinyl polymers; polyacrylic and methacrylic esters; polystyrenes; polyesters, e.g. poly-(ethylenealkaryloxyalkylene terephthalate); phenol formaldehyde resins; polyamides &c. The preferred cycloheptenyl compounds are listed in Table I.
Patent GB-122537-A (GB)
Title: Level and Angle Indicator.
Inventor: SHEED ALFRED JOHN
IPC: G01C9/14
Filed: 1918-03-07
Abstract: 122,537. Sheed, A. J. March 7, 1918. Levels.-A weighted pointer 19 is loosely mounted by a joint 17 on a frame 13 which is free to move in all directions within a transparent spherical casing. The extremities 14 of the frame are ball-shaped and are held in contact with the surface of the casing by springs 13. The casing is formed by two hollow half-spheres 3, 3, and is marked with lines 4 and 5 in vertical and horizontal planes. The markings may be in luminous paint and the movable frame and weighted pointer may be similarly painted; or, alternatively, half of the inside surface of the spherical casing.
Patent GB-1059931-A (GB)
Title: Improvements in or relating to grinding mills
IPC: B02C15/14
Filed: 1964-01-31
Abstract: 1,059,931. Edge-runner mills. H. MITCHELL and L. MITCHELL. Jan. 27, 1965 [Jan. 31, 1964], No. 4120/64. Heading B2A. In an edge-runner mill comprising rollers 8 co-operating with a rotary pan 6, the pan is substantially wholly supported by a cross-roll type annular thrust bearing 7. The pan is rotated by means of a spur ring 15 engaging a pinion 16 on a countershaft 17 which is driven by means of belt and pulley gearing 18 from an electric motor 20. The pan comprises an imperforate floor ring 12 and a perforated ring 13. Ground material is discharged through bottom of casing 1 on to a pair of endless belt conveyers 5. The casing is provided with plates 4 which are swept by a pair of scrapers 22. The rollers 8 are rotatably mounted in bearings 9 on the free ends of a pair of bifurcated brackets 10 pivotally mounted on cross beams 11.
Patent GB-894559-A (GB)
Title: Tractor seat
IPC: B60N2/54
Filed: 1959-02-05
Abstract: 894,559. Resilient seat mounting. OLSON, H. O. Feb. 5, 1959, No. 4126/59. Class 52(1) In a resiliently mounted tractor seat the seat bracket 64 is mounted on a base plate 30, secured to the tractor, by means of parallel links 46, 70, and a toggle 140 connects the seat to the base tension springs 106 biasing the linkage forwardly and tension springs 122 connecting the centre of the toggle to a bell crank 114 mounted on the pivot of links 46 and bearing against an adjustment screw 126 mounted on a bracket 82. The bracket 82 is also movable longitudinally by means of an adjustment bolt 108 to vary the tension on springs 106.
Patent GB-524796-A (GB)
Title: Improvements in electric cables
IPC: H01B7/02
Filed: 1939-02-08
Abstract: 524,796. Cables. COMMERCIAL SECRETARIES, Ltd., WELBOURN, B., FULLER, W. P., and ORCHARD, J. R. S. Feb. 8, 1939, No. 4202. Drawings to Specification. .[Class 36] In a H.T. stranded cable enclosed by a lead or other metal tube in contact with the conductor and having a laminated dielectric built up of insulating strips applied helically over the tube, the latter is distended by internal pressure after the dielectric is applied and preferably at or near the end of the manufacturing process, and, if desired, is maintained distended by such pressure under service, so as to press into close contact with the dielectric and place it under radial compression in the region immediately .adjacent the tube, the compression falling off with a steep gradient from the tube outwards. The formation of a gas-layer of dangerous thickness is thereby avoided. In the application to cables having an impregnated-paper dielectric, with the spaces between the turns and layers clear of impregnant and filled with gas under pressure, say 200 lbs. per square inch, the gas pressure in the tube would be 250-300 lbs. -per square inch the tube being distended before the application of the dielectric gas.
Patent GB-779118-A (GB)
Title: An impact crusher
IPC: B02C13/09
Filed: 1956-02-10
Abstract: 779,118. Impact crushers. KLOCKNERHUMBOLDT-DEUTZ AKT.-GES. Feb. 10, 1956 [Feb. 12, 1955], No. 4237/56. Class 59 An impact crusher particularly for use below ground comprises a rotor 1 the shaft 3 of which is supported outside the crusher casing 4 in bearings 5 which rest on a base frame consisting of longitudinal and transverse beams 7, 8, the base frame also carrying the crusher casing which has lateral walls 9 provided with open ended slots 30 surrounding the rotor shaft and has a detachable front end wall formed by two plates 17, 18 which are held in position by means of ledges 21, 22 provided on the walls 9. The walls 9 also have recessed portions 10 the edges 11 of which rest on the transverse beams 8. The lower portions 15 of the walls 9 between the portions 10 are secured to the beams 7 by means of screws 16. The walls 9 are connected together by means of tie rods 27, 28 and a wall 57. The plate 17 has a bar 23 which rests on the plate 18. The slots 30 are closed by means of members 31 secured to the base frame. A plate 24 provided with an opening 25 and held in position by means of ledges 26 on the walls 9 may also be provided. When it is desired to dismantle the casing to enable the rotor to be repaired, the screws 16 and tie rods 27, 28 are first removed. Then, the plates 17, 18 and 24 are pulled out successively along their ledges by means of a crane the hoisting rope of which is engaged with hoops 33, 34 provided on the plates 17, 18 and with the opening 25 in the plate 24. After this, the casing, the walls 9 of which are provided with hooks 37, is raised by means of the crane with the lower edges of the walls 9 lie just above the rotor shaft 3, when the casing is shifted to the right to expose the rotor To enable the rotor to be removed, the bearings 5 are provided with movable covers 38.