baber/WOPTO huggingface dataset:
Patent GB-941059-A (GB)
Title: Improvements in and relating to suspension systems
IPC: B60G17/052
Filed: 1962-09-05
Abstract: 941,059. Pneumatic suspension systems. ROBERT BOSCH G.m.b.H. Sept. 5, 1962 [Sept. 9, 1961], No. 33964/62. Heading B7D. In a pneumatic suspension system comprising a closed circuit compressed air plant 10 which supplies a control device 6 for air springs 4 a valve 19 supplies compressed air from a supplementary air tank 11 to an air storage tank incorporated in the plant 10 when the pressure therein falls below a certain value. The valve 19 is opened by a spring 16 when the air pressure falls on a diaphragm 17 communicating with the air storage tank. The supplementary air tank 11 is chargeable through a tyre-type valve 20. An air drying device 21 is provided or a replaceable drying cartridge may be disposed within the supplementary air tank 11. The compressed air plant 10 may include both high and low pressure storage tanks.
Patent GB-1074304-A (GB)
Title: Improvements in or relating to synthetic leather
Filed: 1964-08-19
Abstract: 1,074,304. Coated sheet material. SUMITOMO CHEMICAL CO. Ltd. Aug. 19, 1964 [Aug. 22, 1963], No. 33972/64. Heading B2E. [Also in Division B5] A gas- and moisture-permeable synthetic leather comprises a laminated structure of a continuous foamed layer of open cell structure having a volume porosity of 40 to 95% and an open-pored sintered layer having a volume porosity of 5 to 40% of polyvinyl chloride or a copolymer derived mainly from vinyl chloride monomer, or a mixture of the polymers, on woven, non-woven or knitted cloth or paper. The synthetic leather may be produced (i) by applying a plastisol of the polymer or polymers containing a foaming agent capable of generating gas at a temperature between 90 and 180C. to the surface of a woven or non- woven cloth or paper, applying a powder layer by uniformly spreading a powder mixture of the polymer or polymers which is capable of sintering at a temperature below 220C., and then heat-treating the laminate at a temperature between 160 and 220C. at atmospheric pressure to allow the powder and plastisol simultaneously to sinter and foam respectively, or (ii) adhering a gas- and moisture-permeable sheet or film of the polymer or polymers, which has an open-pore sintered structure having a volume porosity of 5 to 40%, to woven or non- woven cloth or paper, by using as binder a plastisol of the polymer or polymers containing a foaming agent capable of generating gas at a temperature between 90 and 180C., and then heat-treating at a temperature between 130 and 200C. thereby allowing the plastisol to foam. The foaming agent may be p,p oxybis benzene sulphonyl hydrazide, azodicarbonamide, N.N'-dinitrosopentamethylene tetramine, diazoamino benzene, diphenyl sulphon-3, 3'- disulphohydrazide, 4,4'-diphenyl disulphonyl azide or N,N'-dimethyl-N,N'-dinitroso terephthalamide. The plastisol may be applied to the surface or desired parts of the surface using a knife, reverse roll or printer, or by transfer from a metal plate or heat-resisting paper. The powder may be applied by a knife, buffer plate or by electrostatic spraying. The heat treatment may be conducted when the surface of the powder layer is exposed, or when the surface is in contact with a porous metal plate having an engraved pattern. As shown in Figure 1, sintered layer 1, intermixed layer 2, and foamed layer 3 are applied over the whole surface of cloth layer 4. In Figure 2, foamed and thus intermediate layers 3, 2, is applied to part of cloth surface 4 and sintered layer I applied thereover.
Patent GB-839137-A (GB)
Title: Air cushions
IPC: B60N2/70
Filed: 1957-10-31
Abstract: 839,137. Air cushions. DE FRIES, B. Dec. 31, 1958 [Oct. 31, 1957], No. 33988/57. Class 52(4) In an air cushion arrangement for vehicle seats &c., a seat cushion comprises an airtight rubber bag 11 enclosing a foam latex cellular cushion 12 and is connected by tubes 13 to a back cushion comprising an airtight bag 14 supported by hooks 15 fitting over the back of the vehicle seat 10 and connected to the bag 14 by straps 16. Normally cushion 14 is collapsed but the weight of the sitter causes it to be inflated by air expelled from bag 11. When the seat cushion is unloaded the resilience of the foam rubber expands bag 11 and withdraws air from the cushion 14. In a modification (Fig. 2) the cushions are built into a vehicle seat and comprise an airtight bag 17 expanded by coil springs 18 between a rigid base 19 and foam latex surface 20 with tubes 21 leading to back cushion 22. A cock may be fitted in one of the tubes 13 or 21 to control as desired the air passing from one cushion to another.
Patent GB-1099569-A (GB)
Title: Writing instrument
IPC: B43K24/08
Filed: 1966-07-28
Abstract: 1,099,569. Retractable ball-point pens. H. BROSS. July 28, 1966 [Aug. 2, 1965], No. 34020/66. Heading B6P. The rear push-button 2 of a retractable ballpoint pen has a cam member 5 which is flexible in at least the radial direction with respect to the longitudinal axis of the pen. The toothed part 6 of the cam 5 co-operates guide edges formed by apertures or grooves in the barrel of the pen. As shown in Fig. 8, in the retracted position, the toothed part 6 is retained in topmost corner of the upper guide edge. On depressing the push-button, the cam 5 moves radially inwards by the action of the slope 6<SP>1</SP> on the internal barrel surface, until it can latch into the second groove or aperture defining the second guide edge. The return spring (4, Fig. 1) then urges the tooth 6 to ride up the second or intermediate guide edge to its upper corner, thereby latching the pen in the projected position. A second depression of the push-button 2 disengages the tooth 6 from the intermediate guide edge to latch it behind the lowest or third guide edge. Upon release of the push-button 2, the tooth moves up the third guide edge, and continues to move as indicated by the broken arrows, until retained in the retracted position defined by the top corner of the uppermost guide edge. In the case of a push-button which is allowed to rotate relative to the barrel, e.g. of circular cross-section, the cam 5 is formed with a certain amount of rigidity in the peripheral direction. However, with push-buttons that are not allowed to rotate, e.g. of square section (Fig. 5), the peripheral movement of the tooth 6 is allowed by peripheral bending of the cam 5. If, however, movement of the tooth 6 parallel to the longitudinal axis is required when the cam 5 is bent from its neutral position, longitudinal guide edges (13, Fig. 4) must be provided. Instead of grooves or apertures forming the guide edges, ever deepening steps may be provided on the internal surface of the barrel (Figs. 6 and 7), with a ramp leading from the deepest step to the shallowest step. It is stated in the prior art that the mechanisms described above are suitable for retractable writing instruments with pressure caps.
Patent GB-1448572-A (GB)
Title: Control apparatus
IPC: H05K3/00
Filed: 1973-07-17
Abstract: 1448572 Electrical component assemblies R G BIRTHWRIGHT 7 Dec 1973 [17 July 1973] 34059/73 Heading H1R Apparatus incorporating plural electrical control devices, e.g. switches, potentiometers and variable resistors, each with a spindle extending through a bush secured by nuts to a control panel and an operating member carried by the spindle; has a control panel, an adjacent circuit board and the plurality of control devices each secured with the body of the device on one side of the circuit board; with the spindle transfixing both the circuit board and the control panel, and each device electrically connected to a circuit of the circuit board. In a multichannel microphone mixer (Fig. 1) with, e.g. 6 circuits, each channel comprises potentiometers 12, 14, 16, 18, 19, 20 on panel 21 (Fig. 2) with circuitry on printed circuit board 22 of larger area; connected by tracks 26 to tone control 28 and input amplifier 30 whose circuitry 33 is mounted on the opposite side of board 22 to the soldered connection side 36. A fader panel 38 is angled to the circuit board 22 and to panel 21. The panel 21 and board 22 are interfixed, and each potentiometer is mounted with body 42 (Fig. 3) adjacent the soldering side of the printed circuit board with its operating shaft protruding from the panel, and its bush secured by threaded nuts to both. Terminal tags 52 are bent over and soldered to the appropriate tracks of the printed circuit. In a modification (Fig. 4, not shown) the potentiometer may have an extended fixing bush so as to stand off within the panel, with wire connections to the printed circuit from the tags. The circuit board may be double sided for solder connections with an insulant layer separating it from the control panel.
Patent GB-756380-A (GB)
Title: Improvements in or relating to gas sampling apparatus
Inventor: MILNE ALFRED JAMES GRAHAM
IPC: G01N1/24
Filed: 1953-12-08
Abstract: <PICT:0756380/III/1> A fan which draws gas through a venturi tube, thus stepping up the normal suction of the venturi, is used to draw off a continuous flow of gas for sampling purposes by connecting the venturi to a gas conduit.  A centrifugal fan 10 driven by motor 11 has fan outlet 12 open to the atmosphere and the intake is connected to a venturi tube 13 open at 14 to the atmosphere. Small bore tubes 15 and 16 are connected to the throat of the venturi and can be connected through gas analysing devices to the main gas conduit.
Patent GB-1277659-A (GB)
Title: Sampling system
IPC: G01R13/34
Filed: 1969-07-07
Abstract: 1277659 Diode gating circuits TEKTRONIX Inc 7 July 1969 [12 July 1968] 34112/69 Heading H3P [Also in Division H1] In a sampling gate (e.g. for a sampling oscilloscope) samples are stored on a portion L 1  of transmission line repetitively connected to and isolated from an input 30 by means of a pair of gates 38, 40. As shown in Fig. 3, reversedbiased diodes 38 ... 44 and 54, 56 are turned on by balanced 100 picosecond strobe pulses every 10 microseconds so that a sample is taken of the input signal at 30, the sample being stored on lines L 1 . A signal output 32 is provided to trigger the sampling oscilloscope. Diodes 54, 56 reduce spurious coupling (blow-by) due to the capacitance of diodes 40, 42. In Fig. 1 (not shown) the gate is formed by a pair of diodes in the centre conductor of a coaxial line, the junction of the diodes being connected via a gate or resistor to a pre-amplifier. Figs. 4, 6-8 (see Division H1) depict physical construction of the lines and gate on a plug-in ceramic wafer ¢ inch x # inch.
Patent GB-503352-A (GB)
Title: Method for the continuous preparation of superphosphates
IPC: C05B1/02
Filed: 1937-12-11
Abstract: 503,352. Endless-belt conveyers. GAUNT, J. G. (Compagnie Nationale de Matieres Colorantes et Manufactures de Produits Chimiques du Nord Reunies, Etablissements Kuhlmann) Dec. 11, 1937, No. 34380. [Class 78 (i)] [Also in Groups III and II] Superphosphates are prepared from raw phosphate and sulphuric or phosphoric acid by continuously supplying phosphate and acid to a mixer adapted to entrain air into the mixture to form a foam and discharging the foam on to an endless band conveyer in a thin layer where it forms a highly porous solid which is thereafter disintegrated. Suitable apparatus shown in the Figure comprises a weighing device 3 for crushed phosphate and a measuring device 9 for acid both discharging into the mixer 6 and both being driven from a common motor. The foam formed falls on to the endless belt 11 which is supported on rollers 25, which are spaced more closely near the mixer to ensure the perfect horizontality of the belt. Other rollers 26 support the lower strand and are cleaned by spring-urged blades 27. The fluid gradually solidifies during its passage along the belt until it reaches the disintegrator 14. The latter cuts the solidified foam into flakes which fall on to the conveyers 15 and 16 for air drying and then to the elevator 17 for further processing. In order to prevent loss of material over the sides of the belts the upper rollers may be in three parts forming the belt into a concave shape. To prevent the liquid flowing over the side of belt 11 before it has had time to solidify, flanges, separate from the belt, made from wood with rubber linings may be placed on either side of the belt and in fluidtight contact therewith. To prevent clogging they may be suspended by spring blades 31 and be connected to bearings 32 in which a shaft-having an eccentric weight revolves.
Patent GB-525678-A (GB)
Title: Improvements in and relating to the manufacture of flexible sheet material
IPC: C08L1/10
Filed: 1938-11-25
Abstract: 525,678. Films. GEVAERT PHOTO-PRODUCTEN N. V., TRITSMANS, R. G., and HENDRICX, S. Nov. 25, 1938, No. 34400. [Class 2 (ii)] Films are formed from cellulose ester solutions by depositing the solution on to a flexible band and subjecting the deposited layer to heat, at the upper side at a temperature below the boiling point of the solvent and at the underside at a temperature higher than the boiling point. The solvent evaporates without formation of bubbles. For heating the space above the carrier a continuous stream of heated air can be applied. For heating the underside of the carrier, heating tubes through which steam or heated water is passed, heated rollers in contact with the carrier, or electric heaters, may be provided. The cellulose ester solution may contain plasticizers. When acetone is used as solvent, the air above the carrier may be at 45‹ C. and the space beneath the carrier may be at 80‹ C.
Patent GB-435965-A (GB)
Title: Process for the treatment of benzols, petrols and other hydrocarbons
IPC: C07C7/10
Filed: 1934-11-30
Abstract: Hydrocarbons such as motor benzol or petrol are treated with a solution of ammonia to remove sulphur and colour forming compounds, and to the resulting purified hydrocarbons an oxidation inhibitor is then added.  Benzol is agitated with a fresh or used aqueous solution of ammonia and after separation, the desulphurized benzol is washed with water, dilute sulphuric acid, soda solution and finally with water.  An oxidation inhibitor such as cresol is then added.  The purified hydrocarbons before addition of the inhibitor may be freed from thiophene by treating a fraction thereof boiling between 80 and 120 DEG  C., with concentrated or slightly diluted sulphuric acid.
Patent GB-900333-A (GB)
Title: Bonding structure for securing an inner cylindrical body to an outer cylindrical body
IPC: B23K1/18
Filed: 1960-10-07
Abstract: 900,333. Jointing; brazing; welding by fusion. KOBE STEEL WORKS Ltd. Oct. 7, 1960 [June 10, 1960 (2); July 25, 1960], No. 34426/60. Class 83 (4). [Also in Group XXVIII] A bonding structure for securing an inner cylindrical body of titanium, titanium base alloy, zirconium or zirconium base alloy to an outer cylindrical body of metal other than those mentioned, comprises a ring of the metal of the inner body extending around the inner body and a ring of the metal of the outer body extending around the ring on the inner body, the rings being mechanically secured and brazed together. A titanium shell 1, Fig. 1, is welded at 3, 3 to a threaded titanium ring 2 and engaged in the ring 2 is a threaded ring 5 of steel or stainless steel welded at 6 to a jacket of steel or stainless steel. In addition the junction 7, 7 of the rings is brazed by silver or silver alloy. The lower end of the shell and jacket may be similarly bonded. In a modification the titanium ring is of L shape and the steel ring is seated on the foot of the L, the upper and lower edges of the rings are brazed by silver or silver alloy and several titanium screws are threaded from inside the shell through the inner ring into the outer ring and their heads are arc welded to the shell. The screws may be inserted from the outside. In another modification, a cylindrical steel vessel 21, Fig. 3, with a titanium liner 22 is welded at 25 to a threaded steel ring 24 arranged in an opening in the vessel wall and seating on the liner. An enlarged threaded portion 23 on a titanium tube 20 is engaged in the ring 24 to extend into the vessel, the junction between the rings being brazed at 26<SP>1</SP> with silver or silver alloy and the tube and liner being welded at 26.
Patent GB-1013912-A (GB)
Title: Improvements in or relating to furnace control
IPC: F23N5/20
Filed: 1962-09-10
Abstract: 1,013,912. Controlling burners. M. CLAUSEN, [trading as DANFOSS, VED ING M. CLAUSEN]. Sept. 10, 1962 [Sept. 11, 1961], No. 34575/62. Heading F4T. In an oil-fired furnace which includes a motor 1 driving oil supply means, ignition means 4 and flame-detecting means 11, 12, a single safety switch 8 serves both in the event of failure to establish a flame and in the event of a fault in the motor circuit to interrupt the supply of current to the motor and ignition means. The switch 8 has a bi-metallic actuating element which at starting is subjected to the heating effect of heating elements 8a, 8b, 8c, located respectively in the main winding circuit, the auxiliary winding circuit and the circuit to the ignition means. If start-up is normal after a short delay a centrifugal switch 18 in the auxiliary winding circuit opens eliminating heating element 8b. When a flame is established a switch 13 is opened by means of the photo-electric flame sensing means 11, 12 de-energizing the ignition means 4 and eliminating the heating element 8c. The elements 8a, 8b, 8c are of such dimensions that during normal starting the heating effect on the switch 8 is insufficient during these periods to cause it to open; under fault or no-flame conditions however, the heating effects are sufficient to operate the switch 8 and firing of the furnace is thus arrested. The elements are so proportioned that the period allowed for ignition to be achieved is considerably longer than the period in which a fault current on the motor may persist. In a modification (Fig. 2, not shown), two heating elements are provided in series in the motor main winding circuit, one of which is shunted out of circuit when a flame is established. In a further modification (Fig. 3, not shown), a starting relay is included in the main winding circuit which operates a switch in the auxiliary winding circuit after a predetermined short period cutting-out the auxiliary winding. In this arrangement a bimetallic flame detecting device may be used. In a further modification (Fig. 4, not shown), a part of the lead to the motor is common to both the main and auxiliary windings and includes a common heating element, a further element which is cut-out of circuit once a flame is established being located in the separate lead to the main winding. In those embodiments (Figs. 3 and 4, not shown), in which a starting relay is employed the ratio between the voltages at which the photo-electric device responds and at which the starting relay responds should be equal to or less than one so
Patent GB-1362271-A (GB)
Title: Control drive system for power devices
IPC: H03K17/60
Filed: 1971-06-26
Abstract: 1362271 Switching circuits WESTING- HOUSE ELECTRIC CORP 26 July 1971 [24 Sept 1970] 34852/71 Heading H3T Current through a load and the two switches of a saturable core push-pull inverter is used to control a power switching device controlling the load current. As shown, one or other of the inverter transistors is conducting while the inverter oscillates and provide a continuous current in Darlington fashion to the base of the power transistor Q1. Switch-off is effected by a pulse which momentarily renders Q4 conducting to divert current from the bases and switch-on is effected by applying a start pulse to the base of Q2. The inverter supplies a drive current which is independent of supply voltage and provides the advantages of a regenerative feedback power switch, using a small transformer.
Patent GB-1101105-A (GB)
Title: Improvements in or relating to the control of mechanical stokers
Inventor: LAUDER JOHN PATON
IPC: F23N1/06
Filed: 1965-08-14
Abstract: 1,101,105. Controlling fuel and air supply to furnaces. HODGKINSON BENNIS Ltd. 10 Aug., 1966 [14 Aug., 1965], No. 34904/65. Heading F4B. In a furnace for heating a boiler and having automatic fuel feeding means and a fan or fans creating draught and having a time lag between the starting of the fans and the commencement of fuel feed and a similar lag when the fuel feed and fans are stopped there is provided means responsive to the temperature of the heated fluid which controls the fuel feed, an automatic damper regulating the draught is also provided. The furnace 2 has a combustion chamber 3 and an underfed grate 6 supplied with solid fuel from a hopper 8 by a screw conveyer 10 driven by an electric motor 11. Forced draught is provided in a duct 16 by a fan 12 driven by an electric motor 14 and an induced draught is generated by a fan 18 driven by a motor 20, either fan may be dispensed with. Two feed screws may be provided arranged in series or in parallel. A chain grate or ram stoker could alternatively be provided. A damper flap (24, Fig. 2, not shown), is mounted in the duct 16 and is controlled by a solenoid. The damper is balanced to float against the draught in the halfopen position with the solenoid de-energized and when the fan is stopped the damper falls to give maximum obstruction; counterweights enable the degree of float to be adjusted. The electric control circuit (Fig. 3, not shown), comprises an overriding control (A) which cuts-off the whole circuit if the temperature in the boiler 4 or system 5 reaches a predetermined maximum, a control stat controlling a contact (B<SP>1</SP>) ensuring that the temperature is maintained between upper and lower limits and which may be a thermostat in a flow pipe or heat exchanger, contacts (B<SP>3</SP>) for a programme clock and further contacts (B<SP>3</SP>) for an idling clock which runs the stoker for a few minutes at given intervals during the night when the programme clock breaks the normally made contact (B<SP>2</SP>). This circuit ensures that fuel and draught are supplied when the temperature falls and withdrawn as the temperature rises and that the damper is correspondingly adjusted and includes thermal switches providing a time delay so that fuel is fed to the grate before the draught is increased. Similarly, the fans continue to run after the fuel feed has ceased to burn up fuel more quickly and eliminate smoke. The circuit also includes a regulator stat that enables fuel to be fed at a higher or lower rate as required by a thermostat in the flow pipe.