baber/WOPTO huggingface dataset:
Patent GB-1384036-A (GB)
Title: Process for pyrolyzing tetrafluoroethylene to hexafluoropropylene
IPC: C07C67/00
Filed: 1973-06-11
Abstract: 1384036 Hexafluoropropylene process E I DU PONT DE NEMOURS & CO 11 June 1973 [12 June 1972] 27719/73 Heading C2C Hexafluoropropylene is produced by pyrolysing a mixture containing tetrafluoroethylene and CO 2  in a weight ratio of from 1À1 : 1 to 25 : 1 in a reaction zone at a total pressure of 0À75-2 atmospheres absolute, partial pressure of C 2 F 4  of at least 360 mm. Hg absolute and a temperature of 700-900‹ C. to a conversion of C 2 F 4  of at least 20 wt. per cent to C 3 F 6  and a mixture of CO 2  and unreacted C 2 F 4  is separated from the C 3 F 6 . Preferably the feed mixture contains at least 40 wt. per cent of CO 2  and the conversion of C 2 F 4  is 20-80 wt. per cent. HCl or HF may be added to the pyrolysis furnace adjacent to the exit end of the furnace to inhibit polymerization of unreacted C 2 F 4 . The CO 2  and C 2 F 4  are preferably removed from the final reaction product by distillation.
Patent GB-533597-A (GB)
Title: Improvement in control valves for high pressure containers
IPC: F16K1/30
Filed: 1939-10-13
Abstract: 533,597. Valves. KIDDE & CO., Inc., W. Oct. 13, 1939, No. 27842. Convention date, Nov. 2, 1938. [Class 135] A valve device particularly adapted for controlling the release of carbon dioxide for fire extinguishing and of the type comprising a main valve actuated by fluid pressure under the control of separate coaxial inlet and exhaust valves has a separate reciprocating actuating member adapted to engage alternately with the two control valves. In the form shown in the Figure the main valve 6 comprises a metallic frame 7 embedded in rubber-like material and is secured to the lower end of a hexagonal tubular spindle 9 passing through a packing 13 to an actuating chamber where it is secured to a piston 17 provided with a peripheral packing 18 and a washer 19 adapted to cooperate with a seat 20 on the floor of the actuating chamber. The inlet valve 22 is slidably guided in a socket formed in a spider 25 and is normally held by a spring in engagement with a seat in the main valve. The exhaust valve 40 is housed in a recess formed in an actuating spindle 31 packed at 47 and rotatably mounted in a closure cap 45 by a washer 50 and nut 49. A further actuating member 28 has quick-pitched screw-threaded engagement with a recess in the piston and is secured to pusher rods 26, 37 adapted to engage selectively with the inlet and exhaust valves. A coupling member 33 secured to the lower end of the spindle 31 has a key and slot engagement with the member 28. When the handle 32 is operated to open the main valve the member 28 is depressed and the valve 22 opened permitting fluid pressure to pass by way of passages 21 and 51 to the actuating chamber. When the handle is turned in the reverse direction the valve 40 is opened permitting fluid to escape to exhaust by way of passages 38, 43 and recess 44. In a modification the main valve is arranged at right angles to the inlet passage and provided with a perforated tubular guide held in place by a closure cap fitted with a frangible safety disc. The valve member is enclosed in a metallic cap which co-operates with a slotted extension on the closure cap to prevent the valve member closing the passage leading to the safety disc. In this form the control valves are actuated by fingers on a cylindrical member slidable in a packed liner by a hand-actuated cam. The auxiliary valve casing is closed by a cap and washer of a cellulose compound known under the Registered Trade Mark " Celerin."
Patent GB-296916-A (GB)
Title: Revolving dog kennel
IPC: A01K1/03
Filed: 1927-10-20
Abstract: 296,916. Wharton, L. Oct. 20, 1927. Rotary buildings; kennels.-Dog kennels and similar buildings are mounted to rotate with the wind so as to afford the maximum shelter. The building is provided with a wind vane 1 and rotated on a ball bearing on a pedestal 2. A stop 6 is provided on the rotary base to coact with spring-controlled stops 4 and fixed stops 8 to prevent sudden jars.
Patent GB-623755-A (GB)
Title: Improvements in conveyors
IPC: B65G21/06
Filed: 1946-09-18
Abstract: 623,755. Endless-band conveyers. MAVOR & COULSON, Ltd., and THOMSON, J. Sept. 18, 1946 Nos. 27973 and 33888. [Class 78 (i)] Each section of the framework of a sectional conveyer comprises a pair of longitudinals 26 detachably secured at each end to a stool, the connection between each longitudinal and the stool being made or broken by entering or withdrawing a projection on one member into or from the other, and being such that relative vertical or longitudinal movement of the longitudinal and stool is prevented. Each stool includes rockers 35 pivoted on bearings 33 on opposite sides of the stool and carrying pins 36. At each end of each longitudinal 26 is a projection 30 formed with a notch 32 and a nose 31. When in position the notch 32 engages the pin 36 on the rocker 35 (see Fig. 8) while the nose 31 engages beneath a square boss 34 on the stool, so that when the longitudinals on both sides of the stool are in position relative vertical or longitudinal movement of the longitudinal and stools is prevented. To extend the conveyer further longitudinals 26 are secured to the last stool by tilting them to insert the projection 30, as shown at the right hand side of Fig. 3. A further stool is then added, the rockers 35 being tilted to permit engagement with the last pair of longitudinals. The rockers of the last stool are then locked. The bearings 24, Fig. 4, for the rollers 22, 23 are mounted on boards 28 which lie across the longitudinals 26, engaging them by pin and slot connections 47, 48 and resting on them by plates 28a whose lower bearing edge 28b, Fig. 3, is curved so that the backlash of the pin and slot connections enables the belt to incline the roller assemblies slightly forwardly to cause a centring action on the belt. The space between the boards 28 is covered by housings 29 formed with strengthening corrugations 29b and overlapping flanges 29a. The rollers 25 provided on the stools to support the return run of the belt are adjustable lengthwise of the conveyer (Fig. 8), being mounted in bearings on spindles 39 slotted to rest on the side irons 37 of the stool. The spindles 39 are held against longitudinal movement by arms 41 slotted at 46 to permit the passage of the square body 45 of a stud 43, a captive pot nut 44 securing the arms 41 in adjusted position. A lateral gable-shaped member 38 on the stool guides the return run of the belt if the roller 25 is omitted. In a modified construction the stools are made sufficiently high to permit both runs of the belt to be used to convey. In the first Provisional Specification a construction is described in which the rockers 35 are omitted, the projections 30 engaging directly in slots in the stool.
Patent GB-826435-A (GB)
Title: Improvements relating to brake arrangements, particularly for heavy motor vehicles
IPC: F01L13/00
Filed: 1957-09-04
Abstract: 826,435. Regulating I.C. engines. DAIMLER-BENZ A. G. Sept 4, 1957 [Sept 8, 1956] No. 27984/57. Class 7(6) [Also in Group XXXI] A brake arrangement for a heavy motor vehicle comprises a pedal 1 operating brakes on the vehicle wheels and coupled to an engine brake 10 that throttles the exhaust flow of the engine; a valve, switch 19 or the like is provided by which the exhaust brake can be disconnected from the pedal operating the wheel brakes. The engine brake 10 comprises a throttle 12 in the exhaust pipe 11 operated by a solenoid 6 energized by a power source 5. The solenoid circuit 7 contains the switch 19 which is mounted on the dashboard and combined with a visual indicator and a switch 4 which is operated when the brakes are applied by the pedal 1. Other switches 13 and 16 in the same circuit are connected to a clutch pedal 15 and a gear lever 18 respectively in such a way that the circuit is opened when the clutch is out and/or the gear lever is set at neutral.
Patent GB-172266-A (GB)
Title: Improvements in or relating to hydraulic pumps and motors
IPC: F16F9/20
Filed: 1921-08-07
Abstract: 172,266. Variable Speed Gear, Ltd., and Ingoldby, M. K. Aug. 7, 1920, Liquid-pressure 'engines; hydraulic transmission of power.-The 'movable stroke-controlling member A of a variable-stroke motor is provided with a dash pot C'. The fluid in the cylinder may be fluid from the motor or other source.
Patent GB-916438-A (GB)
Title: A high current density silver recovery unit
Inventor: BRITTON DUNCAN CAMPBELL
IPC: C25C1/20
Filed: 1960-08-15
Abstract: 916,438. Regenerating photographic fixing solutions. KODAK Ltd. Aug. 10, 1961 [Aug. 15, 1960], No. 28247/60. Class 41. An electrolytic cell for the recovery of silver from used photographic fixing solutions, at high current densities, comprises a cylindrical anode, an outer concentric cathode of flexible metal sheet constrained to form a cylinder and tangential inlet and outlet orifices communicating with the annular space between the electrodes. Fixing solutions containing soluble thiosulphates, particularly of sodium and ammonium together, and complex compounds of silver are treated electrolytically at current densities up to 25 amps. per sq. ft. to regenerate the fixing solutions and recover the silver. The cell consists of a cylindrical case 1, detachable end-caps 2 and 3 and a central core 9 fabricated from a chemically-resistant electrically insulating material. A removable thin polished stainless steel sheet 4, constrained in a cylindrical shape against case 1 constitutes the cathode; the anode 10, 11 consists of a split sheet cylinder of titanium plated with platinum on its convex surface, supported against core 9 by a circumferentially wound thin nylon cord 13. The electrolyte is injected tangentially into the annular space between the anode and the cathode via tube 14 so that the rate of flow across the cathode surface is high, due to the helical path described by the solution in moving through the cell to discharge via tube 15, thus preventing the formation of silver sulphide. Silver deposited on the cathode separates from the unrolled non-constrained stainless steel sheet in a friable form. The cell may be made of polymethyl methacrylate using polished stainless steel sheet as cathode and a rolled cylinder of 26 S.W.G. titanium sheet as anode, plated externally with 0.0001 inch platinum.
Patent GB-1053256-A (GB)
IPC: C08F291/02
Filed: 1963-07-17
Abstract: 1,053,256. Coatings; coated sheet material. DEUTSCHE GOLD-UND SILBER SCHEIDEANSTALT VORMALS ROESSLER. July 17, 1963 [July 28, 1962], No. 28323/63. Headings B2E and B2K. [Also in Divisions B5 and C3] Coatings are prepared by applying to a substrate, e.g. sheet metal, wood, synthetic plastics (e.g. knitted Perlon-Trade Mark) and plastic foam, a 5 to 50% by weight solution of an elastomer in one or more liquid polymerisable compounds containing CH2=C groups, e.g. methyl methacrylate, styrene or vinyl toluene, the solution containing a polymerisation catalyst and having a viscosity of at least 100c P. The polymerisable compound is polymerized on to the elastomer in situ in the coating. The elastomer is a butadieneacrylonitrile copolymer, butadiene-methyl methacrylate copolymer, butadiene-styrene colopymer, polychlorobutadiene, polymethyl butadiene or natural rubber. The solution may also comprise a crosslinking monomer, an acid monomer or copolymer, a plasticiser and a reinforcing material, e.g. powdered quartz, ground shale, talcum, powdered glass, sawdust, cork, asbestos, and glass or textile fibres.
Patent GB-167419-A (GB)
Title: Receptacle cover supports
IPC: B65F1/16
Filed: 1920-10-06
Abstract: 167,419. Smith, R. L. Oct. 6, 1920. Lids and covers.-The lid 11 of a garbage or other receptacle is detachably connected by a looped strap 10<1> with a member 10 hinged at 13 to the end of a bar 6 slidably arranged in vertical guides 5 on brackets 1 secured to the side of the receptacle. Downward movement of the bar is limited by lugs 7 thereon engaging the upper bracket and a rod 16 hinged to an extension 14 of the member 10, passes through a lug 20 on a bracket 19 secured to the bar and terminates on a foot lever 18. By depressing the lever 18 the cover is raised, a foot-piece 21 being provided on the bracket 19 for steadying the receptacle. To empty the receptacle, the cover and bar are slid out of the brackets 1.
Patent GB-248085-A (GB)
Title: Improvements in or relating to x-ray examination apparatus
IPC: G01N23/04
Filed: 1924-11-28
Abstract: 248,085. Hartridge, O. C., and Kent, P. C. Nov. 28, 1924. R÷ntgen-ray apparatus for determining the fit of boots or shoes, is so constructed and arranged as to utilize the rays emitted from a single source. comprising one or more ray-tubes, in two or more different directions at right angles in order that different aspects of the object may be examined. In the form shown, apparatus of known kind, comprising a casing 10 for the ray tube, having a platform 21 for the foot 14 and a housing 15 fitted with a fluorescent screen 16 and eye-pieces as at 18, 19, permits the passage of rays through the lateral wall 11 of the casing to a second casing 12, spaced from the first so that the foot may be introduced therebetween, and provided with a fluorescent screen 13, an inclined mirror 22, and eyepieces 23. Hinged covers 24, 25 give access to the casing 10 and housing 15, and a lead shutter 27 is slidably mounted on the wall 11 to cut off when desired, the rays to the casing 12. This casing is detachably secured by brackets 26 to the casing 10, but may be built up as a part thereof. More than one auxiliary casing 12 may be employed; and more than one ray-tube may be provided in the casing 10 to furnish the differently-directed beams, or a single tube may be moved into different portions to alter the direction of emission of the rays. Screens of rubber incorporated with a lead compound may be disposed between the casings to cut off stray radiation.
Patent GB-720005-A (GB)
Title: Improvements in, or relating to, electric fencing
IPC: H05C1/02
Filed: 1950-11-23
Abstract: 720,005. Electromagnetic interrupters. PONTING, E. J., PONTING, C. H., and BAYLISS, E. G. Nov. 23, 1951 [Nov. 23, 1950], No. 28614/50. Class 38 (5). In a system for delivering electric impulses to electric fencing, closure of contacts 12, 15 on a balance wheel 7 and armature 13 respectively, complete the primary circuit to an electromagnet 3 causing the attraction of the long arm of the armature and giving a thrust to the wheel 7 which rotates against the action of its spring 8 so as to separate the contacts. The wheel then returns to remake the contacts and the cycle starts again. The interruption of the primary circuit causes H.T. impulses in the secondary circuit of the magnet 3. Adjustment for period of impulses is by an arm 9 which varies spring 8 and nuts 18 which vary spring 16 biasing the armature. The spring 16 is slotted at its R.H. end and embraces the bolt 17.
Patent GB-1403346-A (GB)
Title: Method for continuously dyeing lengths of material consisting at least in part of cellulose fibres and apparatus for carrying out this process
IPC: D06B19/00
Filed: 1973-06-15
Abstract: 1403346 Continuous vat dyeing on cellulosic materials VEPA AG 15 June 1973 [29 June 1972] 28615/73 Headings D1B and DIL Lengths of material consisting at least in part of cellulose fibres are continuously dyed by applying vat dye, followed by alkaline reducing agents, steaming for dye-fixation, after treating by rinsing, acidic oxidation and rinsing, followed by drying, at least part of the after treatment processes being effected by forcing liquor through the material. Apparatus for the above process comprises in Figs. 1 and 2, a chemical padder 2, squeeze rollers 3 from which material 1 passes to steamer 4, through the suction drum bowl 5, to second suction drum bowl 6, to roller vat bowls 7, rollers 8, vats 9 and suction drum bowls 10, the drying being effected in either 11 a perforated drum drier or in drying cams 12.
Patent GB-140033-A (GB)
Title: Improvements in couplings
IPC: H01R13/28
Filed: 1919-11-19
Abstract: 140,033. Barber, W. E. Nov. 19, 1919. Two-part couplings for electrical and other purposes consists of two similar halves which are made by bisecting a metal rod 13, Fig. 1, provided with diametrically opposite grooves 14, and slitting the halves longitudinally so that each is reduced to a double prong, the prongs being of triangular section with their narrow edges inward. Fig. 3 shows one-half of a coupling thus formed, having two prongs 17 and an intervening slot 16. A circular groove 18 may contain a spring washer and a shoulder 20 may be attached to the end. The two halves engage by sliding contact, the prongs of each fitting with a certain amount of resilience into the grooves of the other. Fig. 5 shows the coupling member fixed into a handle 21 by means of a screw cap bearing on the shoulder 20, wires out of a flexible lead 23 being soldered or otherwise attached. The Specification also describes the mounting of the coupling members on panels and in multiple-pin plugs, and the use of the coupling members for jointing cables, and for coupling shafts, In a shaft coupling, as shown in Fig. 11, the prongs 17 of each half exactly fill up the grooves of the other half.
Patent GB-197613-A (GB)
Title: Improvements in water taps, valves or the like
IPC: F16K11/16
Filed: 1922-10-21
Abstract: 197,613. Salter, A. W. W. Oct. 21, 1922. No Patent granted (Sealing fee not paid). Mixing-valves.-A combined valve for the supply of hot and cold water simultaneously, or one of them alone, comprises inlets 2, 3 communicating with a chamber 4 and normally closed from the deliverv chamber 16 bv lift valves 5, 6. The common operating spindle 10 is formed hollow to receive a spring 14 which serves to maintain the valve 6 closed whilst the valve 5 is opened for a limited extent. The spindle 8 of the valve 6 passes into a hollow extension of the valve 5, and is formed with a flange 13 adapted to be engaged by a rim 18 in order to lift and open the valve. 6 by a continued upward movement of the spindle 10; this arrangement also permits the spindle 10 and the two valves to be withdrawn with the valve cover from the casing as a unit.
Patent GB-1497247-A (GB)
Title: Reels for cable and like flexible continuous material
IPC: B65H75/14
Filed: 1976-07-09
Abstract: 1497247 Reels INDUSTRIEWERK NACHF SEIFERT & CO 9 July 1976 [18 July 1975] 28765/76 Heading B8M  The core 2 of a reel 1 for supporting cables, wires comprises, at each end, a hub 3 with an  outer cylindrical bore 7 of large diameter, an inner conical bore 8 of smaller diameter and optionally a third, cylindrical bore 10 extending, over axial lengths X, Y and Z. The bores provide alternative methods of securing the reel to the spindle or mandrel of the cable &c. processing, e.g. drawing, twisting or stranding, machine. Side discs or flanges 4 comprise turned over edges 5 provided with a reinforcing insert 6.
Patent GB-1246343-A (GB)
Title: Electrical heating element
Inventor: ROMANIEC CHARLES
IPC: F24D13/02
Filed: 1969-04-01
Abstract: 1,246,343. Laminates. ELECTROTEX DEVELOPMENTS Ltd. 22 Jan., 1970 [1 April, 1969; 6 June, 1969], Nos. 16881/69 and 28775/69. Heading B5N. [Also in Division H5] A laminar electrical heating element 32, for use as a fabric for heated clothing, heated carpet underlays &c., comprises a non-woven, e.g. corded or felted fibrous carbon web 10 with a supporting or holding layer 11 of loosely woven textile fabric, spaced electrodes 17, a surface layer 14 of felted fabric, e.g. of wool, and a finishing layer 22, which may be, e.g. a woven fabric adhesively bonded to the layer 11  using an adhesive film 25. A foamed plastics layer 41, Fig. 11 (not shown), may provide the finishing layer, or this layer may be a knitted or a non-woven fabric layer. Layer 11 is an open weave cotton scrim, and there may be a second such layer 40, Fig. 5 (not shown), between layer 14 and web 10. The layers 11, 40 and/or 14, and the electrodes 17, which may be woven or braided metal tapes, are united to the carbon web 10 by needling (Fig. 7), but the finishing layer 22 is united by bonding or adhering. Web 10 is carbonized bulk rayon fibre.
Patent GB-1471487-A (GB)
Title: Film cassette
IPC: G03B21/32
Filed: 1974-06-28
Abstract: 1471487 Film cassette SHUI-TING LU 28 June 1974 28876/74 Heading B8M The Specification is similar to that of Specification 1,471,486 which describes and claims a double decked tape cassette having two coaxial tape hubs. The present Specification describes and claims a film cassette comprising a double decked case having an upper half and a lower half which, together with a partition member define upper and lower compartments, a supply reel hub and a take-up reel hub contained one in each compartment, the hubs being journalled between projecting flange tubes situated at the centre of the upper cassette wall, the partition and the lower wall, and having a guide roller at each corner of the cassette to guide the film between the hubs.
Patent GB-1091770-A (GB)
Title: Motor vehicles
Inventor: BUDD ERIC DOUGLAS
Filed: 1966-06-28
Abstract: 1,091,770. Change-speed control. FORD MOTOR CO. Ltd. June 28, 1966, No. 28931/66. Heading F2D. In a motor vehicle of the kind having a hand and a foot throttle control wherein to start the vehicle from rest the clutch is disengaged, first gear selected, the hand throttle opened (giving an engine speed of 1000 r.p.m.), the clutch engaged, and, on the vehicle moving, the hand throttle closed and the foot throttle used, an interlock mechanism is incorporated in the gearbox whereby, if an attempt is made to engage first gear after clutch disengagement and with the hand throttle inadvertently left open, first gear engagement is positively prevented until after the vehicle clutch has been held disengaged for a sufficiently long time (4 sees.) to allow the clutch-output speed to fall. Possible damage to first gear is thereby prevented. With the hand throttle open and the clutch engaged, corresponding series switches (14), (15), Fig. 1 (not shown), are closed to energize a solenoid valve (12) supplying compressed air to thrust a piston 7 against a spring 9, into a groove or' in an arrester rod 3 connected to the selector rail of first gear, preventing engagement thereo!. On disengaging the clutch, switch (15) opens, the solenoid valve (12) is de-energized, and air exhausts through a restrictor (11) to atmosphere, taking for example, four seconds for the pressure to fall sufficiently for spring 9 to disengage the piston 7 from the rod 3, to allow first gear selection. This allows sufficient time for the clutch-output speed to fall to a safe value for first gear engagement.