baber/WOPTO huggingface dataset:
Patent GB-1496264-A (GB)
Title: Hydrostatic propulsion system
IPC: F16H61/42
Filed: 1975-05-22
Abstract: 1496264 Hydrostatic transmissions CLARK EQUIPMENT CO 22 May 1975 [23 Sept 1974] 22367/75 Heading F2W A hydrostatic transmission for a vehicle comprises two adjustable swash plate pumps 14, 16 having different maximum discharge capacities and supplying hydraulic motors 78, 80 and 92, 94 respectively, these driving wheels 10 and 12 of the vehicle, the control means for the pumps being such that with both pumps supplying their respective motors (four-wheel drive) their discharge rates are equal, the larger capacity pump 14 having its maximum capacity limited to that of the smaller pump 16, this limitation being removed when only the larger capacity pump 14 is supplying its motors 78, 80 (two-wheel drive). In the construction shown in Fig. 2, a pedal 64 controls the pumps 14 and 16 by movement of levers 54, 56 through linkwork which includes an element 72 which co-operates with a cam member 42 to restrict the degree of movement of lever 54 to limit the maximum capacity of pump 14 to that of pump 16. Between the levers 54, 56 two pumps 14, 16 is a lost-motion connection 62 comprising a spring-centred piston in a cylinder. In the condition shown the pedal 64 adjusts both pumps together for four-wheel drive. Two-wheel drive is selected by movement of a lever 36 to raise cam member 42 away from element 72 and simultaneously to rotate a member 38 which sets the control lever 56 of pump 16 to neutral against the action of the springs in the connection 62. The pump 14 may now be adjusted to a greater discharge than the maximum of pump 16. The movement of lever 36 also operates a pair of solenoid operated valves 120, 129 (Fig. 1) so that fluid circulated through the motors 92, 94 passes to a reservoir for cooling. The drive to each pair of motors 92, 94 and 78, 80 incorporates a fluid divider/combiner (depending on direction of travel) interconnected with steering controls 125, 132, 134 for the provision of differential action. The pumps 14, 16 illustrated are of different sizes but they may instead be the same size and driven at different speeds (Figs. 7 and 8, not shown), in which case the control levers of the pumps are of different sizes to allow differential adjustment. Instead of the pump 16 being set to zero displacement on movement of lever 36 to select two-wheel drive it may be declutched from the prime mover 18. The vehicle may have tracks or three wheels rather than four. Pressure relief and flushing circuits may be provided in the transmissions of Fig. 1. The pumps 14, 16 are adjusted servos supplied with fluid pressure from a make-up pump 108.
Patent GB-1453953-A (GB)
Title: Photographic support plate
IPC: G03B27/64
Filed: 1973-05-10
Abstract: 1453953 Photographic support plate J R DENNER 12 Aug 1974 [10 May 1973] 22448/73 Headings G2A and G2X A translucent or transparent photographic support plate comprises a plurality of rigid sheets 12, 14, 16, assembled face to face in a stack to provide the plate, at least one passage for vacuum supply to a surface of the plate being provided by or in one or more grooves 28, 30, 32, 34 in one or more of the sheet surfaces and one or more apertures 27 through one or more of the sheets, there being at least one such groove at the interface between an outer sheet and the adjacent sheet in communication with the outer surface of the outer sheet via one or more of the apertures. Vacuum to the grooves 28 in the top sheet is connected permanently. To grooves 30, 32 and 34 vacuum is applied via grooves 46, 48 and 50 and is controlled by valves, connected to passages 72, 74, 76, The valves contain discs 78 can be lifted off the passages by a permanent magnet 80 slidable in recess 82 in the block 58. The support plate can be rotatably mounted in a camera or enlarger on pivots through one of which a vacuum passage may be provided.
Patent GB-726505-A (GB)
Title: Improvements in valve control mechanism, particularly for internal combustion engines
IPC: F01L1/24
Filed: 1953-08-14
Abstract: 726,505. Valve gear. DAIMLER-BENZ AKT.-GES. Aug. 14, 1953 [Aug. 29, 1952], No. 22473/53. Class 7 (6). [Also in Group XXVI] A pair of overhead valves 10, 12, is actuated by cams 9, 11 through levers 7, 8, having their fulcra 5, 6, arranged side by side on the cylinder head and adjusted by automatic adjustment means 13, 18 to take up clearance in the valve gear, the point of application of the lever 7 on the valve 10 being situated between the cam 9 and fulcrum 5, which latter is moved away from the cylinder head by the adjusting means 13 to take up clearance, and the point of application of the lever 8 on the valve 12 being situated beyond the distance between the cam 11 and fulcrum 6, which latter is moved towards the cylinder head to take up clearance. The adjusting devices 13, 18, comprise piston and cylinder devices 14, 15, Fig. 2, biased apart by a spring, the cylinder space being filled with hydraulic fluid which enters past a non-return valve. In Fig. 2 the piston 14 rests against a pin 16 fixed to the cylinder head and the cylinder 15 urges a slidable member 3, Fig. 1 carrying the fulcrum 5 towards the cylinder head to take up clearance between the lever 7 and cam 9. In Fig. 3 the adjusting device is fixed in the cylinder head and its movable cylinder urges a slidable member 4 carrying the fulcrum 6 away from the cylinder head. A projection 22 of the fulcrum pin 6 engages a slot in a member 2 fixed to the cylinder head to prevent rotation of the member 4 and maintain the lever 8 in its correct operating plane ; similarly the member 3 is prevented from rotating by an extension of the pin 16.
Patent GB-1387887-A (GB)
Title: Pilot lighter device for gas heating appliances
IPC: F23Q9/04
Filed: 1972-05-12
Abstract: 1387887 Pilot light assemblies SOC ITALIANA TECNOMECCANICA LA PRECISA DI DR PeG de STEFANI SAS 12 May 1972 [13 May 1971] 22480/72 Heading F4F A pilot light assembly for the main burner(s) of a gas heating appliance comprises a plate 2 formed with three tubular members 13, 3, 15 which are located in the same plane and support respectively a thermocouple 14 for controlling a safety valve, a burner device 12, and an electrical ignition device 16, the burner being provided with an annular orifice A for a pilot recovery flame and at least one orifice such as B adapted to emit a dart-shaped flame towards the thermocouple 14, the axis of the annular pilot flame being transverse to the axis of the dartshaped flame. The orifice B and two further orifices (B<SP>1</SP>) and (B<SP>11</SP>), Fig. 3 (not shown), which diverge outwardly, are defined between a pair of plates 12a and 12b and effect ignition of gas at three respective main burners, not shown, the orifice A being defined between a cup-shaped member 11 and the plate 12a gas reaches the orifice A via a radial hole 9 and the orifice such as B via an opening 10. In a modification, Fig. 4 (not shown), gas is supplied to the pilot burner from a gas supply pipe 24 via generally tubular members 18 and 20 which are locked together by fins 21, a member 7 provided with a nozzle being located within the member 18.
Patent GB-1390701-A (GB)
Title: Process for the preparation of derivatives of hexahydrophthalic  acid
IPC: C08K5/34
Filed: 1973-05-11
Abstract: 1390701 Hexahydrophthalic acid derivatives BAYER AG 11 May 1973 [12 May 1972] 22525/73 Heading C2C Hexahydrophthalic acid derivatives of Formula III in which n is 1 or 2, are prepared by reacting a compound of Formula I in which X is O, NH or NR, and R is an aliphatic or aromatic group which may be substituted, with a compound of Formula II in which R 1 , R 2  and R 3 , which may be the same or different, are H, halogen, OH, alkoxy, aralkoxy, aryloxy or an aliphatic, araliphatic or aromatic group, or R 1  and R 2  together are a 5- or 6-membered aromatic, hydroaromatic, carbocyclic or heterocyclic ring any of which may be. condensed with a further benzene ring, in the presence of HF as catalyst. Compounds of formula may be prepared by reacting a compound of Formula III with water, in the presence of HF when X is O, and in an alkaline medium if X is NH or NR.
Patent GB-295280-A (GB)
Title: Improvements in current collectors for electric vehicles
IPC: B60L5/20
Filed: 1928-08-03
Abstract: 295,280. Fischer de T¾var¾s, J. Aug. 8, 1927, [Convention date]. Bow and shoe collectors, having a plurality of contact faces and supported asymmetrically, are maintained in position by the ends of the contact plates. In one form, Fig. 2, the collector at its ends terminates in a sleeve A secured on the support t by a bolt b. A bush of metal or carbon may be interposed between the parts A. t. The member t may be retained in place by packing or by a screw passing up from under the sleeve and engaging a bush. Screws are dispensed with by deforming the sleeve, as in Fig. 7. Triangular collectors have packing h<1>, Fig. 4, and a bolt s<1>. The Specification as open to inspection under Sect. 91 (3) (a) states also that the collector may be composed of separate plates connected at the ends to bearing sleeves. This subject-matter does not appear in the Specification as accepted.
Patent GB-466240-A (GB)
Title: Improvements in or relating to lamp fittings
IPC: F21S13/00
Filed: 1936-08-17
Abstract: 466,240. Lamp globes and screens. KOMOR HENRIK - FELE FENYTECHNIKAI, VILLAMOSSAGI ES MUSZAKI VALLALAT KFT. Aug. 17, 1936, No. 22614. Convention date, Aug. 19, 1935. [Class 75 (ii)] An electric or other lamp comprises a globe 1 and a surrounding reflector screen 4, the side surfaces of both of which are waved for more than one complete undulation whereby the repeated reflection of light between the two surfaces produces a substantially uniform distribution of light over the whole of the globe. The globe is made of mat glass whilst the screen is preferably made of opal glass. The space between the globe and the screen gradually diverges away from the axis of the lamp, and the bottom 3 of the globe may be waved concentrically. Ventilation openings 10 in the gallery 6 are covered by wire gauze 11. The neck 8 of the screen may rest on the neck 5 of the globe, and a tightening ring 9 may be disposed between it and the gallery, as shown in Fig. 1, or the globe and screen may be separately secured'to the gallery by two sets of screws 7a, 7b and two tightening rings 9a, 9b, as shown in Fig. 2.
Patent GB-1275491-A (GB)
Title: Fume cupboards
IPC: B08B15/02
Filed: 1970-05-11
Abstract: 1275491 Fume cabinets PIELKENROODVINITEX NV 11 May 1970 [12 May 1969] 22616/70 Heading F4X A fume cupboard having an access opening 1 closable by a sliding window 2 connected by cables 3 to a counter-weight 5 incorporates an automatic safety arrangement operative, when fire or like hazardous conditions prevail in the cupboard, to (a) close the access opening 1 and the discharge duct 8 and (b) spray extinguishing agent such as CO 2  through a nozzle 17 into the cupboard. A sensing device 14 responsive to a predetermined increase in temperature per unit time actuates a knife 15 which severs the cable 3 causing the window to drop and close the opening 1. An auxiliary cable 19 is also severed causing a normally open valve 18 in the duct 8 to close. In addition the supply of auxiliary air through channels located near the cupboard bottom is terminated, e.g. by closing valves located in these channels. Operation of an exhaust blower communicating with the duct 8 and the supply of services such as air, water, gas &c. to the cupboard are terminated by cutting off the power supply (see Fig. 3). A flow meter (39, Fig. 3) sensing lack of air flow in the exhaust duct 8 actuates a warning device (41). In the event of an explosion occurring a hinged safety hatch 9 opens to relieve the excess pressure. The cupboard is provided with a double-walled construction (Fig. 4, not shown) comprising an outer wall (43) and an inner wall (44) of fire-proof flexible material with insulating material (45) therebetween. Gauzes 12 and 13 prevent flames from spreading.
Patent GB-666043-A (GB)
Title: Improvements in or relating to tool bars for slotting machines, planing machines, and shaping machines
Inventor: TORRY HARRY CLARK
IPC: B23D13/00
Filed: 1949-09-01
Abstract: 666,043. Planing &c. machine details. HADFIELDS, Ltd. Sept. 6, 1950 [Sept. 1, 1949], No. 22669/49. Class 83 (iii). A tool bar for a planing, shaping or slotting machine comprises a tool-holder 7 mounted in a transverse recess in the bar, means within the bar for receiving pressure fluid for moving the holder 7 to retract the cutting-edge of the tool 10 towards the body of the bar or to bring it into cutting position, and means 8 for positively positioning the holder in cutting position. In a planing-machine, the tool 10 is carried in a bar 49 and is rocked about a pivot 6 by pneumaticallyoperated plungers 19, 20. Dogs 55, Fig. 7, mounted on the reciprocating worktable and co-operating with a lever 54, reverse a table-driving motor 57 and a valve 52 controlling the plungers 19, 20, at each end of the stroke. In a slotting-machine for keyway cutting, dogs on a slide carrying the toolbar control the position of the tool. In a modified form of tool-bar, Fig. 4, the tool 32 is mounted on a piston 28 which is held in position on the cutting stroke by a rod 36 controlled pneumatically in time with the piston 28. A small communicating passage 47 delays movement of the tool until the rod 36 is withdrawn. The movements of the holder may be effected by hydraulic means.
Patent GB-211417-A (GB)
Title: Method and apparatus for facing foundry moulds
IPC: B22C23/02
Filed: 1923-09-10
Abstract: 211,417. Moore, W. D. Sept. 10, 1923. Mould materials.-Cylindrical moulds such as centrifugal moulds for casting iron pipes are faced with dry powder delivered by axially moving apparatus. The plumbago, graphite, lampblack, cement or other powder is placed in an openended receptacle 3 which rests on a cone 19 carried by bars 11, yoke 32, and a flexible pipe 34, electric cable, or other support by which the device is moved axially. A pneumatic, electric or other motor 31 is mounted in the yoke 32 and drives a shaft 7 on which is mounted a cam disc 17 adapted to lift a roller 26 and the receptacle 3 which carries it, against the action of a spring 22, to discharge the powder intermittently. The shaft also carries felt wipers 28 which apply the powder to the face of the mould. The bars 11 are padded by means of felt 15 and a disc 16 of the same material mounted between two metal plates 8 guides the device and prevents escape of the powder.
Patent GB-640800-A (GB)
Title: Improvements in or relating to surgical dressings
IPC: A61F13/02
Filed: 1948-08-27
Abstract: An adhesive bandage comprises a carrier strip having an adhesive coating and a fabric pad all the edges of which are folded inwards towards the side by which it is attached to the carrier strip.  The edges thus turned in may be overlapped if firm pressure of the pad on the wound is desired and the carrier strip may be made of extensible material if required for a member such as a finger.
Patent GB-982462-A (GB)
Title: Concentration of sea-water
IPC: B01D3/06
Filed: 1962-06-13
Abstract: A concentrated solution of sodium chloride is produced by evaporating a sea water which has had its sodium ion concentration increased to 3-4N by the addition of sodium chloride, to give a precipitate of a double salt of CaSO4-Na2SO4. The sodium chloride may be isolated by evaporating the mother liquor.  The composition of the double salt varies according to the temperature at which it is evaporated, e.g. Na2SO4.CaSO4 at 115 DEG  C., Na2SO4.5CaSO4.3H2O at 100 DEG  C. and 2Na2SO4.CaSO4.2H2O at 75 DEG  C Experiments are disclosed which show how the essential features above, were deduced.  In a specific embodiment of the invention (Fig. 1, not shown) a circulating system for evaporating sea-water using the exhaust gas of a diesel engine, is disclosed, the water vapour driven off being condensed by the inflowing solution to give distilled water.  In another embodiment (Fig. 2, not shown) a multi-stage evaporation system is used, the double salt being removed after the first evaporation stage by decantation of the mother liquor which is subsequently evaporated in the following stages to give sodium chloride.ALSO:A concentrated solution of sodium chloride is produced by evaporating sea water which has had its sodium ion concentration increased to 3-4 N by the addition of sodium chloride, to give a precipitate of a double salt of CaSO4.Na2SO4. In a specific embodiment of the invention a circulatory system for evaporating sea water using the exhaust gases of a Diesel engine for heating the water in a separate heater, is disclosed, the water vapour driven off being condensed by the inflowing solution to give distilled water.  In another illustrated embodiment, a multiple-effect evaporator is used, the double salt being removed after the first evaporation stage by decantation of the mother liquor which is subsequently evaporated in the following stages to give sodium chloride.
Patent GB-390842-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B15/04
Filed: 1931-08-12
Abstract: 390,842. Sewing-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., KEALL, F. B., and ELLIOTT, H. E., Union Works, Belgrave Road, Leicester. Aug. 12, 193], Nos. 22753 and 35037. [Class 112.] A rotary take-up device for a hooked needle boot sole sewing machine comprises a thread take-up roll which is mounted on a uniformly rotating shaft and pays off the thread during the stitch formation and pulls it taut subsequently. In one form, Fig. 2, the rolls 27, 41 are mounted on members 23, 31 which rotate at different speeds. The roll 41 slides relative to the member 31 and carries a sleeve 39 embracing an eccentric 29 fixed to the disc 23. Thus the roll 41 moves towards and away from the roll 27 which rotates in a circular path and as the rolls move towards each other and the work, the thread is paid off and while the rolls are moving away from each other and the work, the thread is drawn taut. In another form, Fig. 5, the device comprises a single roll 77 which is mounted eccentrically on a pinion 69 arranged to rotate around an oscillating pinion 63. The combined rotary and oscillating movements of the pinions causes the roll 77 to move towards and away from the work in an obital path and control the thread. Specification 23478/10, [Class 112, Sewing &c.], is referred to.
Patent GB-1051003-A (GB)
IPC: B01J37/20
Filed: 1965-05-31
Abstract: 1,051,003. Selective hydrogenation catalysts. F. HOFFMANN - LA ROCHE & CO. A.G. May 31, 1965 [June 3, 1964], No. 23103/65. Heading B1E. [Also in Division C2] A selective hydrogenation catalyst comprises Pd partially deactivated with Pb, Bi, Cu, Zn, Sn, Hg, Cd or Th and an organic sulphur compound of formula in which x= 1 to 6. The catalyst may be supported on CaCO 3 , BaCO 3 , BaSO 4 , CaSO 4 , clay, MgO or charcoal. Additionally tertiary amine deactivating agents may be used, e.g. pyridine and quinoline may be used with the catalysts.
Patent GB-598739-A (GB)
Title: Improvements in and relating to electric safety switches in centrifugal machines
IPC: D06F34/08
Filed: 1945-09-07
Abstract: 598,739. Centrifugal machines. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 7, 1945, No. 23131. Convention date, Sept. 11, 1944. [Class 23] [Also in Group XXXVII] Vibration of the rotatable receptacle 2 of a washing-machine, causes a ball 12 attached to the spring-mounted casing 4 of the driving- mechanism, successively to engage a spring- plunger 11 so as to close a switch 10 and energize a heating-coil 7 which eventually, with persistent vibration, causes the bi-metal switch 6 to open the motor circuit. The switch may be held open by a latch 14.
Patent GB-501406-A (GB)
Title: Improvements in electrochemical production of manganese
IPC: D06M23/18
Filed: 1937-08-24
Abstract: 501,406. Electrodeposition of manganese. METALLIC MANGANESE CO., Ltd. Aug. 24, 1937, No. 23151. Convention date, Sept. 10, 1936. Drawings to Specification. [Class 41] Manganese is deposited from an aqueous solution containing an ammonium salt and sulphite ion, the ratio of NH 3  to Mn by weight being at least 17:55 and preferably higher. A suitable electrolyte contains 80 gms. manganese sulphate, 150 gms ammonium sulphate and 1 gm ammonium sulphite per litre of water. Electrolysis is carried out in a diaphragm cell the electrolyte flowing first through the cathode compartment and then through the anode compartment in which the hydrogen ion concentration is lower. The electrolyte is regenerated by leading manganese carbonate or crude carbonate or oxide ore; in the latter case it must be purified before return to the cells. The sulphite content is maintained by addition of ammonium sulphite or sulphur dioxide. The current density should be at least 15 amps. per sq. ft. The anode may be of lead and the cathode of polished low, carbon steel. Manganese of purity 99À7 per cent or higher is obtained as a brittle deposit which may be easily removed from the cathode.
Patent GB-1489509-A (GB)
Title: Machine for processing metal in sheet or plate form
IPC: B21D22/02
Filed: 1975-05-27
Abstract: 1489509 Bending presses HAMMERLE AG MASCHINENFABRIK 27 May 1975 [27 May 1974] 23180/75 Heading B3E A machine for processing metal sheet, such as a bending machine, includes an upper tool 3, Fig. 1, carried on a ram, and a lower tool 2 on a base 5, one of the tools being supported by an oil cushion or elastic support and comprising, or being associated with, a number of elements, 4a to 4o, which are individually vertically movable. Each of the elements may be separated by a diaphragm 7 from an oil cushion 6 and have a cap 10a to 10o associated with it. The caps of those elements not immediately beneath a workpiece sheet can be withdrawn laterally by a rod 11, Fig. 3, each rod being pneumatically, electrically or manually operated. This provides greater bending precision. The caps 10 can be located beneath a table 1 supporting the lower tool, or can be dispensed with (Fig. 4, not shown), the elements themselves then forming the lower tool. The elements may be associated with the upper, rather than lower, tool. In place of the oil cushion, a number of springs may be used.
Patent GB-440900-A (GB)
Title: Improvements in and connected with means for feeding coal, coal slurry and other viscid material to conveying mechanism
IPC: F23K3/00
Filed: 1934-08-11
Abstract: 440,900. Hoppers. ERITH'S ENGINEERING CO., Ltd., and WOODFIELD, F. W., 33, Farringdon Street, London. Aug. 11, 1934, No. 23271. [Class 78 (i)] To prevent bridging or arching of the material supplied by a shoot 1 to a hopper 2 for subsequent delivery by the reciprocating ram 4 to a furnace or to a conveyer such as a chain type of mechanical stoker, the walls of the hopper are furnished with a series of reciprocating curtains or screens operated in timed relation to the movement of the ram. Thus, two series of chains 7 connected to cross-bars 8 are suspended by springs 10 and connected at the lower ends by yokes 11 to cross-bars 12 which are connected to the ram 4 bv cabes 13. On the return stroke of the ram, the cables are hauled to pull the chains downwards against the action of the. springs, while on the forward stroke the springs raise the chains. The chains may be moved by gearing.