baber/WOPTO huggingface dataset:
Patent GB-1062847-A (GB)
Title: Improvements in or relating to photographic processing apparatus
IPC: G03G15/10
Filed: 1965-07-15
Abstract: 1,062,847. Photographic processing apparatus. R. HELL. July 15, 1965 [July 24, 1964], No. 30169/65. Heading G2A. A photographic processing tank 1 contains a hollow body 4 resting on projections 7, and an inflatable bag 2 positioned below the body 4 which is clamped against upward movement due to buoyancy of the bag. Prior to passing a sheet to be processed between guides 8, the bag is inflated, blocking an opening or valve in the bottom of the hollow body and forcing processing liquid through spaces between the body 4 and the tank walls. This liquid rises to a fixed level, excess liquid passing through a tube 6 into the hollow body. After the sheet has been processed the bag is deflated and the liquid flows back into the space between the body 4 and the base of the tank. The bag thus acts as a liquid agitator. The liquid is kept at a constant temperature by a thermostatically controlled heater (not shown).
Patent GB-289721-A (GB)
Title: Improvements in crushing or pulverizing mills
IPC: B02C4/02
Filed: 1927-11-10
Abstract: 289,721. Hume, W. R. Nov. 10, 1927. Roller and roller-and-breast mills.-A machine For crushing or pulverizing stone, rock, cement, &c. comprises a crushing-roller. a co-operating crushing-member opposed to the crushing-roller, and an eccentric operating member for rotating the roller and simultaneously reciprocating it towards and from the other crushing-member so that the material is reduced by a combined rolling and percussive action as it passes between the opposed crushing-members. As shown, Figs. 1 and 2, the crushing-roller 2 has stub axles 4 mounted in bearing-blocks 6 which slide in horizontal slideways 7 formed by guides 8 attached to the longitudinal members 9 of the framework. An eccentric part 16 of the driving-shaft 18 bears against the roller 2 and drives it by friction and moves it towards the co-operating roller 3 against the action of .springs 14 bearing against the blocks 6 and stops 17 on the members 9. The roller 3 is carried by stub axles 22 mounted in bearings 23 secured by bolts 26 passing through slots 24 in the members 9. Wedges 28 and coacting lugs or stops 29 may also be provided for adjusting the roller 3. The members 9 may be mounted on joists 12 and be braced at their ends by transverse plates 13. Slots 11, 27 are provided in the members 9 for the passage of the axles 4, 22. Instead of a roller 3, a jaw, plate, or the like with a straight crushing-surface may be used.
Patent GB-730056-A (GB)
Title: Window sash fastener
IPC: E05C3/04
Filed: 1952-11-29
Abstract: 730,056. Window fastenings. NEALE,F.H., and HAWKES, J. A. Nov. 13, 1953 [Nov. 29, 1952], No. 30314/52. Class 44. A window sash fastener comprises the combination of an attachment plate a having a socket c formed on or secured to it, an arm e pivotally attached at one end to the plate at a position adjacent to the socket and a helical spring j or springs, contained in the socket and adapted by pressure on either the adjacent end or one side of the arm to secure the arm in either its operative or its inoperative position. As shown, the plate a is formed with a channel b and the socket is a separate part having a pair of spaced lugs d at one end. It is secured in the channel by the pivot pin h for the arm e, the pivot pin passing through apertures in the lugs d and channel b. The spring or a pair of springs, one contained in the other, are housed in the socket and bear on a slidable abutment k which in turn bears on the arm. The arm has a dovetail for engaging a keeper g.
Patent GB-950824-A (GB)
Title: Rod and lever mechanism
Inventor: DAVIS JOHN WALTER
IPC: F16D65/46
Filed: 1959-09-05
Abstract: 950,824. Friction brakes. GIRLING Ltd. Dec. 2, 1960 [Sept. 5, 1959], No. 30398/59. Headings F2E and F2K. A pivot between a rod and a lever comprises a bush surrounding the rod and bearing against the lever and having diametrically opposed arcuate surfaces mating with complementary surfaces on a ring axially movable with respect to the rod and backed by an adjuster nut. In a disc brake in which pads 11 are mounted on levers 12, 13 pivoted at 14 in the plane of the disc 10 bolted at its outer edge to the rim of a wheel, the pads are urged together by rotation of a lever 17 about a spindle 18 causing a pull in a rod 15. The rod 15 is pivotally connected to the lever 17 by a bush 21, seating against the end of a recess 20 in the lever, and coacting through part cylindrical bosses 22 engaging complementary recesses 23 in a ring 24 axially free on the rod and backed by a castellated adjuster nut 29. Relative rotation of the bush 21, ring 24 and lever 17 is restrained by a pin 26 in the lever and by a tongue 27 and groove 28 in the bush and ring respectively. The nut 29 is housed in a cylindrical shell 30 which forms a socket to rotationally receive the ring 24. A locking collar 32 normally restrained by lugs 32 engaging ways 34 in the recess 20 has ribs 35 to engage the grooves 36 of the nut, but the collar 32 may be displaced axially against springs 37 on wires 38 to permit adjustment of the nut. The ends of the wires 38 are anchored on a dust cover 40 held against a part-spherical surface of the lever by the tension in the wires. The brake may be mechanically or hydraulically actuated from the free end 41 of the lever 17.
Patent GB-208623-A (GB)
Title: Improvements in apparatus for drying ores, slags, limestone, clinker, sand, chemical substances and similar materials in part applicable to mixing the dried materials with tar, bitumen or other binders
IPC: F26B17/22
Filed: 1922-11-09
Abstract: 208,623. Armstrong, Whitworth, & Co., Ltd., Sir W. G., Jackson, J. M., and Jones, H. O. Nov. 9, 1922. Continuous and automatic discharge apparatus, rotary and oscillating. - Apparatus for drying ores, slag, and road-making materials comprises a cylinder A adapted to be oscillated upon an axis B bv connecting-rods f and eccentrics F'. The rods are resiliently connected to lugs on the cylinder, and the latter is provided with helical plates over which the material passes from the hopper D to the shoot D<1> in the opposite direction to hot gases supplied through a flue e from an adjacent furnace.
Patent GB-153189-A (GB)
Title: Improvements in and relating to vaporizers suitable for starting internal combustionmotors
IPC: F02P19/00
Filed: 1919-12-08
Abstract: 153,189. Jenkin, A. Dec. 8, 1919. Vaporizers, external.-Oil or alcohol flows from a pipe b over an electrically-heated coil m, and, mixing with air entering through the valve g, enters the induction pipe o and supplements the carburettor at starting.
Patent GB-219234-A (GB)
Title: A holder for valves of wireless sets
IPC: H01R33/76
Filed: 1923-12-06
Abstract: 219,234. Winter, R. H. Dec. 6, 1923. Vacuum tubes.-A valve holder has a flat face b parallel with the sockets c and provided with means such as ears d for securing to a panel or frame so that the valve is parallel with the panel &c. Tapped brass inserts g may be provided to allow for mounting flush underneath a panel so that the valve projects, as in the ordinary manner, at right-angles with the panel; or the tappings may extend through the holder for securing on the top of a panel. The holder may be recessed at f for lightness.
Patent GB-962863-A (GB)
Title: Improvements in surge suppressors
IPC: H02H9/04
Filed: 1962-08-10
Abstract: 962,863. Protective arrangements. STANDARD TELEPHONE & CABLES Ltd. Aug. 10, 1962 [Aug. 15, 1961], No. 30797/62. Heading H2H. A surge suppressor for connection between the output terminals +, - of a supply source, such as a filter L, C1, and a load, e.g. a resistor R1, comprises the series combination of a resistor R2, a capacitor C2 and a siliconcontrolled rectifier W connected across the load, a Zener diode D for deriving a control potential, which is applied to the rectifier W, when the voltage at the output terminals of the source exceeds a predetermined value, and a discharge resistor R3 connected across the capacitor C2 in series with the contacts r1 of a relay RL bridging the resistor R2. Rectifier W is normally non-conducting, but is rendered conducting by the control potential from the Zener diode D which breaks down when the supply voltage rises to, say 10% above normal, as may happen when a transient voltage surge appears on removal of the load. When the rectifier W conducts, the current flowing through resistor R2 causes relay RL to operate, opening contacts r1 and allowing capacitor C2 to charge. The decrease in load current thus follows an exponential curve and the transient voltage surge at the output terminals +, - is limited to a predetermined value. When the current falls to a value below the hold-in current of the rectifier W, the relay RL falls out and the contacts r1 close; the capacitor C2 then discharges through the resistor R3 and the suppressor is prepared for a new transient. The circuit may include an auxiliary relay which gives the arrangement a longer release time (Fig. 3, not shown).
Patent GB-1439255-A (GB)
Title: Gas turbine engine having substantially constant-volume combustion
IPC: F02C5/12
Filed: 1973-06-28
Abstract: 1439255 Gas turbine engines with constant volume combustion MOTOREN-UND TURBINEN-UNION MUNCHEN GmbH 28 June 1973 [30 June 1972] 30798/73 Headings F1G and F1L A gas turbine engine operates with constant volume combustion and comprises a compressor, a combustion chamber and a turbine, there being a valve-member between the compressor and the combustion chamber, also means for injecting fuel and for igniting the fuel/air mixture adjacent the inlet of the combustion chamber. The engine shown in Fig. 2 comprises a compressor (not shown), a combustion chamber 2 comprising a primary zone 3 and a secondary zone 4 with a throat portion 5 therebetween, a turbine 10 which drives the compressor and a separate power turbine 12. A rotary type valve 1 is disposed at the combustion chamber inlet. A fuel injector 6 and an igniter 7 are provided in the primary combustion zone 3, this zone being covered with heat retaining material 8. In Fig. 3 the primary zone 14 is in the form of a swirl chamber; the throat region 17 is disposed circumferentially with respect to the inlet 11. In Fig. 5 the combustion chamber assembly is disposed around the turbine section which comprises a compressor drive turbine 11', 14' and a separate power turbine 16'. The combustion chamber inlet valve comprises a spring- loaded non-return valve.
Patent GB-999859-A (GB)
Title: End stop for a sliding clasp fastener
IPC: A44B19/38
Filed: 1962-08-10
Abstract: 999,859. Sliding clasp fasteners; stops. YOSHIDA KOGYO KABUSHIKI KAISHA. Aug. 10, 1962 [Dec. 23, 1961], No. 30810/62. Heading E2S. An end stop for a sliding clasp fastener of the kind which incorporates a slider for connecting two sets of interconnecting elements, comprises a male element 2 bearing a hook 5 having shoulders m, a column portion 4 with a recessed anchor portion 6 and a female element 3 having a laterally opening slot 10, jaws 7 and shoulder portions 8. In use, the slider is moved to abut the shoulder 8 of the female element 3 and the column 4 is inserted laterally into the slot 10 until the hook 5 engages the jaws 7, so that, in this position the surface n of the anchor portion 6 engages a lug of the lowest fastening element E of the set of elements to which the female element 3 is connected.
Patent GB-290151-A (GB)
Title: Improvements in or relating to cylinder piston units especially those for internal combustion engines
IPC: F02F3/00
Filed: 1927-11-18
Abstract: 290,151. Birkigt, M. May 7, 1927, [Convention date]. Pistons; cylinders. - The wearing surfaces of the piston and cylinder of an internal-combustion engine are of steel and are treated by the nitrogenization process. The piston may comprise an aluminium body b, the lower part of which is surrounded by a steel sleeve c having upper and lower wearing bands.
Patent GB-1400393-A (GB)
Title: Automatic change for three speed reduction gears
IPC: B66D1/74
Filed: 1971-07-02
Abstract: 1400393 Change-speed gear LEWMAR MARINE Ltd and D J FAWCETT 3 July 1972 [2 July 1971] 31197/71 Heading F2D A three-speed drive, from a handle 3 to a drum 1 of a winch, provides two forward reduction ratios by forward and reverse rotation of the handle, and a faster, but still reduced, forward ratio by rotating the handle forwards after engaging a toothed clutch 13, 14 by depressing a central plunger 16. The highest output speed, with clutch 13, 14 engaged, passes from the forwardly rotated handle 3 through a tubular shaft 2 to which the handle is secured; clutch member 5 slidably keyed at 11 to the shaft 2; clutch teeth 13, 14; freely mounted wheel 4; countershaft stepped pair 7, 8, and a second countershaft pair 9, 10, Fig. 4, to an internal ring gear 6 fast in the drum 1. For second ratio the handle 3 is rotated reversely, which causes disengagement of the clutch 13, 14 by axial thrust produced by engagement of inclined trailing faces 17, 18 of the clutch teeth 13, 14. Drive now passes from the handle to the drum in the same direction as before through the shaft 2, one-way clutch 21, wheel 20, countershaft pair 9, 10 and forwardly rotated ring gear 6. For third ratio (lowest output speed, still forward), the handle 3 is again rotated forwards, the clutch 13, 14 being held disengaged by a ball detent 15. The one-way clutch 21 now overruns and drive passes from the shaft 2 through wheels 24, 22, a second one-way clutch 23, wheel 8, and second countershaft pair 9, 10 to the ring gear 6. Included between the wheels 9, 10 of the second countershaft pair is a forward driving one-way clutch 25, Fig. 4, which permits the which drum to overrun in any ratio and hence ensures that the disconnectible high ratio clutch 13, 14 can be disengaged only by reversing the handle rotation and not by overrun of the drum.
Patent GB-699461-A (GB)
Title: Improvements in or relating to gauges
IPC: G01B3/24
Filed: 1950-12-22
Abstract: 699,461. Linear-dimension gauges. TURNER TANNING MACHINERY CO., Ltd., and HALL, C. Nov. 26, 1951 [Dec. 22, 1950], No. 31205/50. Class 106 (ii). A caliper-type gauge for measuring the thickness of leather comprises two jaws 27, 28, Fig. 5, a fixed anvil 2 on the lower jaw 27 and a spring pressed member 1, co-operating with the anvil 2. The member 1 is secured to a shaft 5 carrying a pin 6 which engages in a worm shaft 8 which carries a pointer 3 moving over a scale 4. The other end of the shaft 6, 17, engages in a vertical slot to prevent rotation of the shaft 5. A lever 21, Fig. 6, is urged by a spring, not shown, against the rod 17 and provides the spring pressure for the member 1. The lever 21 is urged in a counter-clockwise direction as viewed in Fig. 6 and carries a grooved roller 22 at its free end which bears on the rod 17 and moves along it as the shaft 5 is raised and lowered. A lever 39 pivoted at 40 serves to lift the member 1 and shaft 5 for the introduction of the material to be gauged between the member 1 and the anvil 2. Movement of the lever 39 is conveniently made by depressing the plunger 44 in the upper jaw 28. Specification 699,460, which describes a U- shaped frame for housing the gauge, is referred to.
Patent GB-1220063-A (GB)
Title: Testing electric circuits
Inventor: BRIGGS CHRISTOPHER WILLIAM
IPC: G01R31/28
Filed: 1967-07-06
Abstract: 1,220,063. Circuit testing. SOUTH EASTERN GAS BOARD. July 5, 1968 [July 6, 1967], No. 31226/67. Heading G1U. A circuit including a force balance transmitter 10 incorporates a zener diode 16 through which a signal current from the transmitter normally flows when the circuit is operational, and the circuit is adapted so that a testing circuit may be connected in parallel with the Zener diode, in order to test the operation of the circuit. The force balance transmitter controls a current in the circuit, derived from a separate power source 14, as a function of a measured value in e. g. a chemical processing plant, whose operation is to be controlled or indicated at 11, independently of changes of resistance in other parts of the circuit. Contacts are provided at either side of the Zener diode and may be connected to a socket 17 to which a meter 15 is connectible via a plug 18. The connection of the meter will by-pass the diode, without breaking operation of the circuit. Two Zener diodes connected back to back may be used Fig. 6 (not shown).
Patent GB-587433-A (GB)
Title: Methods of and means for compensating for play between adjacent members of driving or control mechanisms for the valve gear of internal combustion engines
IPC: F01L1/24
Filed: 1939-12-01
Abstract: 587,433. Valve gear. SOC. DES MOTEURS GNOME ET RHONE. Dec. 1, 1939, No. 31283. Convention date, Dec. 6, 1938. [Class 7 (vi)] In a hydraulic device for taking up slack or clearance in valve gear, oil is supplied through a passage 2. in the push rod and past a loose ball valve 13 to a chamber 3 in a cylinder 5 arranged in the valve rocker 19, the push rod engaging a piston 4 sliding in the cylinder 5 and formed with passages 8, 11, the latter of which serve to pass oil through further passages 12, 21, 22 to the bearing of the valve rocker. A spring 17 may be arranged above the piston, and an apertured disc 16 to act as a stop for the ball valve.
Patent GB-1086396-A (GB)
Title: Light stabilized elastomeric compositions
Inventor: OSBORN CARROLL HOMER
IPC: C08K5/1515
Filed: 1965-07-22
Abstract: Compositions comprise a mixture of polyvinyl chloride and a thermoplastic polyurethane elastomer and a light stabilizing amount, preferably 2 to 5 parts by weight per 100 parts of the mixture, of an alkylene oxide, preferably ethylene oxide. Preferred polyurethanes are polyesterurethanes of molecular weight about 36,000 and derived from diphenyl methane-p,p1-diisocyanate, adipic acid and butanediol-1,4. The ethylene oxide may be used with known vinyl resin stabilizers, e.g. alkyl aryl phosphites, and the mixtures preferably comprise approximately equal proportions of polyvinyl chloride and polyurethane.  The compositions may be extruded to form vacuum cleaner hose.  Examples describe compositions comprising polyvinyl chloride, polyesterurethane, dioctyl phthalate, epoxidized soya bean oil, a cadmium/ barium/phenol stabilizer, stearic acid, titanium dioxide and organic colouring together with ethylene oxide, with and without alkyl aryl phosphite.
Patent GB-921195-A (GB)
Title: Improvements in the manufacture of plastic hollow bodies
IPC: B29C45/00
Filed: 1959-09-15
Abstract: 921,195. Seaming non-metallic sheet material. H. GUBELA. Sept. 15, 1959 [Sept. 16, 1958; Sept.23, 1958], No.31348/59. Class 42(1). A method of manufacturing a fluid-tight hollow body of plastic material comprises welding together at their outer peripheral edges two mating parts which co-operate to form the hollow body, to cause material of the edges when made molten by the welding operation to enter a peripheral recess within the hollow body, subsequently removing the edges leaving the parts joined at the recess and smoothing the exterior of the body at the joint. As shown two shaped parts 1, 2, made of a plastic, and each provided with a flange-like edge 3, 4 having recesses, are brought together so that there is a hollow space 5 between them. The edges 3 and 4 are welded together by electrodes 6, 6<SP>1</SP> and the liquefied material of the edges is thereby pressed into the hollow space 5 so that when it hardens the two parts 1 and 2 are firmly held together in an airtight and watertight manner. The edges 3 and 4 may be broken off during or after welding. The recess may be formed by simply chamfering the inside edge of one or both body parts. Both parts are preferably warmed prior to the welding operation to prevent tensions being set up. In Fig. 9 the invention is applied to welding an internal spigot 13 to backing piece 16 in the manufacture of a reflexreflector.
Patent GB-638742-A (GB)
Title: Improvements in and connected with thermoplastic materials
IPC: C08L23/02
Filed: 1945-11-21
Abstract: A rubber substitute is made by mixing a bitumen or tar at its fusion temperature with a gellifying agent and then adding, preferably after partial cooling, a thermoplastic synthetic polymer of a compound containing a CH2=C< group and gradually raising the temperature under constant agitation until gellification occurs.  Suitable bitumens and tars are natural bitumens and asphalts, mineral rubbers such as gilsonites and gas and petroleum tars.  The gellifying agents are high boiling liquids, e.g. phosphoric, benzoic, phthalic and butyric esters, chloronaphthalene, chlorinated phenols, chlorinated diphenyl, sulphonated toluenes, naphthalene derivatives, anthracene oils and oils distilled from wood tars or coumarone resins.  Polymers specified are polyvinyl and polyacrylic derivatives, polyisobutylene and polyethylene.  Chalk, kaolin, silica, lithopone, talc, natural and synthetic rubber and vulcanizing agents may be added.  In the example, a gas tar mixed with coumarone resin and chloronaphthalene is heated to 120 DEG  C. and after cooling to 50 DEG  to 60 DEG  C. finely divided polyvinyl chloroacetate is added and the mixture heated gradually with stirring to 140 DEG  to 150 DEG  C.  The composition may be used for covering electric conductors and cables, as filling materials for junction boxes, in making slippers, carpets and tubes, for coating and impregnating fabrics for sacks and awnings and for coating cement surfaces.
Patent GB-783787-A (GB)
Title: Improvements in portable seat stands
IPC: A47C9/10
Filed: 1954-10-29
Abstract: 783,787. Seats. OWEN, F. D. Aug. 4, 1955 [Oct. 29, 1954], No. 31394/54. Class 52(2) A collapsible seat stand has two side frames A connected by and detachably supporting a seat B, and bracing members 5 detachably connected to the side frames A and the seat member B. The bracing members are linked together by the member 5a, are hooked to the sideframes A and engage spigots 6 depending from a cross-piece 8 on the seat member B which is supported on the side frames A by spigots 4. A front extension to each side frame carries a detachable foot rest 14. The cross-bars 2 and 12 provide steps to assist in climbing on to the seat.
Patent GB-783037-A (GB)
Title: Process for the production of organic sulphur compounds and the resulting products
Filed: 1955-11-03
Abstract: Organic sulphur compounds, i.e. mercaptans or sulphides, are obtained by reacting aliphatic or hydroaromatic hydrocarbons, e.g. propane, butane, pentane, and hexane up to the highest members, cyclohexane, methyl cyclohexane or cyclopentane, or mixtures thereof such as are found in mineral oil or fuel synthesis products, with sulphur in the presence of Friedel Crafts catalysts, e.g. aluminium chloride, bromide or iodide, boron trifluoride, gallium chloride, or iron chloride.  The hydrocarbon is stirred with about equivalent amounts of sulphur and with Friedel Crafts catalysts at normal or elevated temperature until the reaction is complete.  The reaction may be accelerated by the presence of hydrogen halides such as hydrogen chloride or hydrogen bromide.  The reaction mixture may be decomposed with ice, hydrochloric acid being added to decompose the condensing agent, and the product isolated by decanting, ether extraction or steam distillation.  The mercaptans may be isolated by shaking with diluted lye and re-precipitating with acids.  The sulphides may be obtained in pure form by distillation, preferably in vacuo.  In examples: (1) n-pentane is heated with sulphur and aluminium chloride under a pressure of hydrogen chloride and pentane thiol and dipentyl sulphide are recovered from the product; (2) cyclohexane is saturated with hydrogen chloride, heated with sulphur and aluminium chloride, and then worked up to give 1-methyl-cyclopentane-thiol-2 and the corresponding sulphide; (3) an olefine-free petrol (B.P. 150-250 DEG C.) is stirred with sulphur, aluminium bromide and hydrogen bromide at 30-40 DEG  C. and the product is worked up to obtain a mixture of high boiling mercaptans and sulphides.  The sulphur compounds obtained by this process may be used as polymerization regulators, intermediates for textile auxiliary products and dyestuffs, and as plant protection agents.