baber/WOPTO huggingface dataset:
Patent GB-1378041-A (GB)
Title: Motion responsive electrical control apparatus
IPC: G01D3/06
Filed: 1972-02-08
Abstract: 1378041 Measuring pressure or displacement electrically DRESSER INDUSTRIES INC 8 Feb 1972 [8 Feb 1971] 5750/72 Headings G1J and G1N A displacement transducer 40 which forms part of a light sensitive servo-control system includes a variable cam surface enabling the electrical output/displacement relationship to be varied. As described the transducer is a potentiometer. The control system includes a pressure sensitive Bourdon tube 10 whose movement is conveyed to a vane 11 varying the light falling on photo-cells 14, 15. The resulting out of balance signal is amplified and fed to a servomotor 21 to drive, through gearing, a screw carrying a nut 35. The consequent movement of the nut moves a spring 28 to restore the position of the vane 11. Displacement of the nut is displayed by a pin 30. Alternative displays are a counter 31 and a printing counter 32. The photo-cells are incorporated in a bridge circuit Fig. 2 (not shown), which includes a potentiometer 52 having a resistance 59 and slider 58. The invention is directed to moving the slider of the potentiometer in accordance with the position of the nut. As shown in Fig. 4, the nut carries a finger 42 against which a cam surface 68 abuts. The cam surface which is formed by a wire, is mounted on a bracket 56 which may rotate about pivots 57, 55, thereby rotating the control pin 53 of the potentiometer 52. The bracket is spring- urged to rotate to maintain the cam surface 68 in contact with the pin 42. The setting of the potentiometer is thereby varied in accordance with the position of the nut 35 as determined by the cam surface 68. This may be varied by adjusting the setting of fingers 65. This arrangement 40 provides a signal from the potentiometer 52 which is applied to the bridge circuit as compensation for slight non linearity introduced into the system by the spring 28, so that the display response is accurate.
Patent GB-1526012-A (GB)
Title: Air pressurising system for electric apparatus in proximity to flammable gases
IPC: A62C3/16
Filed: 1976-02-14
Abstract: 1526012 Fire prevention in electrical apparatus CLARKE CHAPMAN Ltd 31 Jan 1977 [14 Feb 1976] 05890/76 Heading A5A An air pressurizing and purging system to prevent ignition of inflammable gases by sparks from electrical apparatus, e.g. in a crane, comprises compartments 87 for the electrical apparatus each connected to an air distribution chamber 14 and a sensing manifold 42 via diaphragm sensing valves 50 and each compartment having a pressure relief valve 16 with sensor switch 38, wherein the manifold 42 is connected to the air distribution chamber 14 and there is provided a pressure switch 44 operable in response to a predetermined pressure in the manifold and switches to connect power to the apparatus in response to the operation of the pressure responsive switch. Purging air for the chambers is provided by motor driven fan 30. An isolating barrier unit 62, purge sequence timer 66, main power circuit breaker 68 and a further timer 200 are also provided.
Patent GB-1212642-A (GB)
Title: Apparatus for removing packs of sheets from a sheet stack
IPC: B65H33/16
Filed: 1969-02-04
Abstract: 1,212,642. Stacking and delivering sheets; endless conveyer belts. SOC. D'ETUDE ET DE VENTE DE MATERIELS POUR LA FABRICATION ET LE FACONNAGE DU CARTON ONDULE-MARTIN. 4 Feb., 1969 [29 Feb., 1968], No. 5969/69. Headings B8A and B8R. Apparatus in which sheet products are stacked from below, aligned by reciprocating joggers, and removed in counted batches by a pusher, is characterized by a set of horizontal strips connected to an articulated lever assembly and introduced at the bottom of the stack to separate a part of the stack to be removed from further sheets being stacked. General arrangement, Fig. 1.-Cardboard sheets are fed between sets of endless belts 3, 4 against a plate 16 on a further conveyer 8. A stack builds up from the bottom on conveyer 8 until the required number for removal in a batch has been detected by ultrasonic cell 29. Separating strips 24 are positioned immediately above conveyer 8 and further sheets are stacked beneath the strips; the batch above the strips is removed by pusher fingers 35 on to a conveyer 11. During stacking, joggers 45 are reciprocated by eccentrically mounted lever 41 to square the stack with respect to plate 16; plate 16 is adjustable on frame 15 to accommodate different lengths of sheets. Conveyer details.-Belts 3, 4 are transversely spaced to permit the separating strips 24 to move in the gaps; belts 9, 12 of conveyers 8, 11 are aligned with belts 2, 3, and the pusher fingers 35 are mounted directly above the corresponding separating strips 24, the members 45 being mounted between the fingers 35. The pulley 5 of conveyer belts 3 is pivotable on lever 6 to adjust the nip between the belts at that end, and shafts 13, 14 of conveyer 11 are arranged to form an inclined plane. Stack separating device.-The separating strips 24 are introduced below the stack under the action of pneumatic or hydraulic jack 25 controlled by the ultrasonic cell 29 (or optionally, a photo-cell); the strips are mounted on an articulated lever assembly 19, 22, 23, resting on resilient stops 28. Pusher device.-The pusher fingers 35 are vertically adjustable on a transverse bar 32 mounted on a rigid frame 30 travelling between rollers 33, 34 under the action of a further jack 36, which is actuated when the strips 24, being raised by sheets being stacked from below, contact the lower ends of the fingers 35. The resulting horizontal motion of frame 30 and fingers 35 removes the sheets above strips 24 in a batch on to conveyer 11.
Patent GB-1444043-A (GB)
Title: Method for removal of sulphur dioxide from combustion exhaust gas
IPC: B01D53/77
Filed: 1974-02-08
Abstract: 1444043 Removing SO 2  from gases KUREHA KAKAKU KOGYO KK 8 Feb 1974 [10 Feb 1973] 05994/74 Heading C1A Sulphur dioxide is removed from combustion exhaust gases by contacting the gas with an aqueous solution containing at least one organic acid salt of the formula RCOOM wherein R represents methyl, ethyl or propyl and M is an alkali metal or NH 4  so as to react the sulphur dioxide contained in the gas to form a sulphite. The gas is preferably contacted with the solution at between ambient temperature and 90‹ C. The resulting sulphite containing solution may be reacted with a calcium compound to produce calcium sulphite which is separated from the mother liquor. The sulphite may then be converted to calcium sulphate and the mother liquor may then be recirculated for contact with further exhaust gas. Alternatively the sulphite containing solution may be contacted with oxygen or an oxygen containing gas to oxidize the sulphite to sulphate and the thus produced sulphate solution is contacted with a calcium compound to produce calcium sulphate. The calcium sulphate is then separated and the mother liquor recirculated.
Patent GB-1213204-A (GB)
Title: Improvements relating to bearings for watch pivots
IPC: G04B31/08
Filed: 1968-02-07
Abstract: 1,213,204. Bearings. PORTESCAP. 7 Feb., 1968 [16 Feb., 1967], No. 6003/68. Heading F2A. A bearing for a timepiece pivot 4, Fig. 1, has a hole-jewel 3 and has a cap-jewel 5 which has a diameter smaller than the diameter of the holejewel and is held by a support 7 at a pre-determined minimum distance from the hole-jewel. The hole-jewel 3 is fitted into a mount 2 which, having a conical portion 2<SP>1</SP>, is received in a bearing-body 1. The support 7 is provided with protrusions 9 which engage a groove 8 of the body 1, and is provided with three claws 6, each of which has a portion 6<SP>1</SP> engaging the upper surface of the cap-jewel 5 and a vertical portion 6<SP>11</SP> engaging the curved surface of the cap-jewel 5 and extending downwards so as to engage the upper surface 3<SP>1</SP> of the hole-jewel 3. Lubricating-oil is introduced from above into the bearing and is guided into position by the vertical portions 6<SP>11</SP>. In other embodiments a holejewel 13, Fig. 3 (not shown), is force-fitted into a body 11; and claws 26 are each divided into two arms 26<SP>1</SP> and 26<SP>11</SP>, Fig. 5 (not shown), one of which engages the upper surface of a cap-jewel 25 and the other of which engages the curved surface of the cap-jewel. In another embodiment a hole-jewel 33, Figs. 6 and 7, is forcefitted into an insetting 31 and a cap-jewel 35 is maintained at a desired distance from a surface 33<SP>1</SP> of the hole-jewel 33 by means of a support 37 being force-fitted in the in-setting 31, the support 37 being located axially by means of an inner shoulder 31<SP>1</SP> of the in-setting 31. The support 37 is provided with two diametricallyopposite claws 36 in which the cap-jewel 35 is crimped. Openings 40 formed in the support 37 allow the introduction of lubricating-oil into the bearing.
Patent GB-1208714-A (GB)
Title: Improvements in optical resonance cells
IPC: H01J65/04
Filed: 1969-02-04
Abstract: 1,208,714. Resonance cells. THOMSONCSF. 4 Feb., 1969 [5 Feb., 1968], No. 6018/69. Heading G6P. In an optically pumped, molecular resonance cell, the vapour pressure is maintained low, at a given temperature, by the alloying of a further metal with the alkali metal forming the cell vapour. The alloying metal is one which does not disturb the spin function of the alkali atoms, the resonance line of which is to be detected. An alloy of rubidium and potassium may be used with a gas atmosphere in the cell of argon, neon or helium.
Patent GB-818534-A (GB)
Title: Rotary fuel pump
IPC: F04C11/00
Filed: 1957-02-22
Abstract: 818,534. Rotary pumps. BORG-WARNER CORPORATION. Feb. 22, 1957 [March 8, 1956], No. 6113/56. Class 110 (2). In a rotary fuel pump driven by an electric motor 54 disposed within the pump housing and submerged in the fuel being pumped, a flame trap 68 is disposed in the valve controlled bypass means 64, 63 leading from the outlet conduit 27 to the inlet conduit 26. The pump 21 is of the outwardly-sliding radial vane-type having a spring-loaded end plate 38.
Patent GB-1521013-A (GB)
Title: Process for separating undesirable by-products from electroless copper plating bath solutions
IPC: C23C18/16
Filed: 1977-02-14
Abstract: 1521013 Crystallising by-products from electroless plating bath solutions KOLLMORGEN TECHNOLOGY CORP 14 Feb 1977 [14 Feb 1976] 06114/77 Heading BIG Undesirable reaction by products such as sodium sulphate are separated from electroless copper plating bath solutions by continuously distilling at least a part of such a solution, e.g. under vacuum, with the byproducts separate out and may be removed from a sedimentation tank. The distillate may be used to replenish the bath solution.
Patent GB-432227-A (GB)
Title: Improvements in and relating to the manufacture of cold-process soaps
IPC: C11D13/02
Filed: 1934-02-24
Abstract: Cold-process fat-resin soaps are made by treating fatty matter with just sufficient alkali for saponification, treating a mixture of resin and fat or oil with alkali sufficient to saponify only the resin, mixing the two products, and adding alkali to saponify the surplus fat.  For example, 100 lb. of palm-kernel oil is stirred rapidly with 4,5 gallons of 36 DEG  B<\>ae. caustic soda for 10--15 min., 4 gallons of a melt of rosin in an equal weight of palm-kernel oil is treated at 110--135 DEG  F. with 0,5 gallon of 36 DEG  B<\>ae. caustic soda, the products are mixed, and immediately 1 gallon of 36 DEG  B<\>ae. caustic soda is added and the mixture stirred for a few seconds and run quickly into the frames where it sets and saponification is completed.  Perfumes, filling-materials, colouring matters, and bleaching-agents may be added.
Patent GB-944066-A (GB)
Title: Improvements relating to building blocks
Inventor: GLYNN HARVEY
IPC: B28B17/00
Filed: 1961-02-20
Abstract: 944,066. Moulding building blocks. GLYNERCAST Ltd. Feb. 20, 1962 [Feb. 20, 1961], No. 6117/61. Heading B5A. [Also in Division E1] A mould for a building slab comprises a pressing part 14 and a bottom part 12 which can be raised to eject the slab. The part 14 includes an interchangeable plate 14a which, like the mould walls, is formed with projections 10, 11 to form grooves and recesses in the slab. A vibrating motion is applied to the mould via the part 13 which supports the bottom plate 12.
Patent GB-754000-A (GB)
Title: Improvements in or relating to apparatus for generating hot flue gases
Inventor: BLOOMER WARD JAMES
IPC: F23R3/14
Filed: 1954-03-02
Abstract: 754,000. Generating combustion products under pressure. LUMMUS CO. March 2, 1954 No. 6145/54. Class 51(1). An air jacketed type of combustion apparatus for example for use in a gas turbine engine, comprises a flame tube 16a disposed in an outer casing 10 to which air under pressure is supplied through the inlet 12. Air is admitted to the flame tube through a cylindrical member 18 having a closed end 28 and provided with openings 25, Fig. 3, and fixed tangential vanes 24 in its side wall. The member 18 is surrounded by a cylindrical shell 39 and is mounted within a casing 20 which has an inlet 22 for guiding the air. Fuel such as distillate or gas is supplied through a duct 38 to a space between the walls 28 and 36 and enters with the air through the openings 25 between the vanes 24. Alternatively or in addition, heavier fuel is introduced through the duct 34 and nozzles 30. Cooling or dilution air is supplied to the combustion gases through inlets 46. 47 which have openings and tangential vanes similar to member 18. The amount of air passing into the space between the flame tube and the outer casing is controlled by means of a damper 42, and the jacket space is closed by an annular plate 55 downstream of the air inlets 46, 47. The flame tube may be lined with refractory 16, and further air inlets may be provided at 54. Combustion is initiated by means of gas discharging through the duct 52 which is ignited by a sparking plug 50. The vanes in the inlets 46, 47 may be oppositely inclined to those in the member 18. Specification 695,342 is referred to.
Patent GB-1271358-A (GB)
Title: Apparatus for creating turbulence in air and gas to be mixed and combusted
Inventor: AKHMEDOV RUSTAM BEROVICH
IPC: F23D14/00
Filed: 1970-02-09
Abstract: 1,271,358. Air and gas supplies to burners. SREDNEAZIATSKY NAUCHNO - ISSLEDOVATELSKY INSTITUT PRIRODNOGO GAZA. 9 Feb., 1970, No. 6158/70. Heading F4T. In a burner apparatus for creating turbulence in air and gas streams which are to be mixed and combusted in a boiler, rotatable cylinders 3 and 6 are provided to create a vortex flow of fluid in the air duct 1 and gas duct 4, respectively, each cylinder having a peripheral gap 10, the disposition of the gaps relative to the appropriate gas inlet 8 and air inlet 2 being variable by rotation of the cylinders to affect both the rate and direction of flow of fluid in the duct concerned, e.g. the arrangement shown in Fig. 2 would have hardly any effect on the flow of air in the air duct. The gas duct 4 is provided with a telescopic portion 4<SP>1</SP> to enable the gas outlet to be shifted relative to the air outlet thus varying the distance over which the air and gas are mixed before arrival at the combustion zone. A central pipe 5 is provided which may either be used as an observation hole or as a duct for supply of a second type of fuel. In an alternative embodiment, Fig. 3, the vortex flow is created by means of blades 11 fixed on rotary spindles 12, 13.
Patent GB-642379-A (GB)
Title: Improvements in packing materials for stuffing boxes
IPC: F16J15/20
Filed: 1947-03-04
Abstract: 642,379. Yarns. BRITISH CELANESE, Ltd. March 4, 1947, No. 6163. Convention date, March 6, 1946. [Class 120(iii)] [Also in Group VIII] Cabled yarns used in the manufacture of braided packing materials (see Group VIII) are formed by plying yarns made up of continuous cellulose filament and cabling the plied yarns. The material may be a cellulose ester (e.g., the acetate, butyrate, acetate-propionate, or acetate-butyrate) or high tenacity regenerated cellulose. For example, two to ten ends of 80 to 800 denier cellulose acetate or high tenacity regenerated cellulose yarns having ¢ to 3 turns per inch may be plied to form a plied yarn having ¢ to 3 turns per inch ''S" twist and 5 to 20 ends of the plied yarn cabled and given a " Z " twist of ¢ to 3 turns per inch.
Patent GB-693787-A (GB)
Title: Process for improving the plastic properties of coal
IPC: C10B57/08
Filed: 1951-03-14
Abstract: Hydrochrysene is obtained by treating chrysene with hydrogen under pressure in the presence of dekalin as a dispersing agent and nickel on kieselguhr as a catalyst at temperatures between 220-300 DEG  C. After completion of the reaction the catalyst is filtered off and the dekalin removed by distillation.  After being crystallized from a mixture of alcohol and benzene a substance, probably consisting of octa- or dodeca-hydrochrysene, melting between 125-135 DEG  C. was obtained.
Patent GB-1444448-A (GB)
Title: Communication system
IPC: H04M9/00
Filed: 1974-02-12
Abstract: 1444448 Interconnection arrangements STENTOR AS 12 Feb 1974 [13 Feb 1973] 06232/74 Heading H4K In a telephone system wherein speech can only be transmitted in one direction at a time between two stations, continuous depression of a speech button at a station causes a control unit (Fig. 2) to maintain the speech connection for that station whereas a short depression of the speech button at either station causes the existing direction of communication to be reversed. Each station has a single transducer acting as a combined microphone and speaker. In the idle state of the system relay 17 is released due to a pulse control signal which blocks transistor T2 and a speech connection is established from station 12 to station 11 via amplifier 16. If during a call either of buttons 19, 20 is depressed for less than a fixed time of e.g. 0À5 seconds or 2 seconds, transistors T1 and T2 change state to cause relay 17 to reverse the direction of communication. If, however, one of the buttons 19, 20 is held depressed the corre. sponding transistor T1, T2 is blocked to maintain speech communication for that station. Continuous simultaneous depression of both buttons causes relay 17 to maintain speech communication for station 12.
Patent GB-225755-A (GB)
Title: Improvements in automatic gates for railway crossings and operating means therefor
IPC: B61L29/22
Filed: 1924-03-12
Abstract: 225,755. Agostini, G. de. March 12, 1924. Electromagnetic actuation.-A switch actuated by an oncoming train for breaking the circuit of .an electromagnetic catch to release a pumping device which closes crossing gates comprises an electromagnet 42, Fig. 9, normally energized and fixed to a vertical shaft 43 pivotally mounted near the rail 25. The wheels of an oncoming train attract the magnet in the direction of the arrow 2 against the action of a spring 54, and a projection on the shaft 43 lifts a spring contact 52 off a screw 53 to break the circuit through the electromagnet 42 and the electromagnetic catch 40, Fig. 3. A spring 41 then rocks an armature 39 to release a lever 36 which turns to release a tooth 22 from a rod 17 connected by a cross-bar 15 to pump-pistons 13. The pistons are thus allowed to fall and suck liquid out of receptacles 4 in the tails of the crossing-gates 1, Fig. 1, so that the gates are lowered. The train after passing the crossing actuates a treadle to force up the pistons 13 and refill the receptacles 4, thus opening the gates, the tooth 22 again engaging the rod 17 to retain it in the raised position.
Patent GB-668388-A (GB)
Title: Improvements in or relating to pressure regulating valves
IPC: B60T13/14
Filed: 1949-03-09
Abstract: 668,388. Fluid-actuated valves. BENDIX AVIATION CORPORATION, and DUNCAN, W. O. (Bendix Aviation Corporation). March 9, 1949, No. 6384/49. Addition to 611,619. Class 135 [Also in Group XXXIV] In the pressure regulating valve of the parent Specification for the operation of vehicle brakes, the piston 20 associated with the exhaust valve element and subjected to the pressure in the motor port in opposition to the pressure applied by the actuating member is replaced by a two-part piston member comprising a plunger 38 slidable in and resiliently connected to an annular piston member 34 by a spring 44, so that in the low pressure stage of operation of the valve the pressure in the motor port acts on both the piston 34 and the plunger 38 whilst in the high pressure stage the pressure acts on the plunger only. On anticlockwise movement of the operating member 88 a loading spring 66 is compressed to move the' piston 34 and, through the spring 44, the plunger 38 to seat on the exhaust valve 62 to cut communication between the brake cylinder 17 and the reservoir 19. On further anticlockwise movement the inlet valve 28 is unseated to supply the brake cylinder with pressure liquid from the pump 15. With the inlet valve open and the line pressure less than a value determined by the spring 44, both piston and plunger resist this pressure and due to the relatively large area thereof a close control can be kept by the operator. On the line pressure exceeding that of the spring 44 the piston 34 moves to the left into abutment with a shoulder 56 whence the line pressure is then resisted only by the plunger 38 and the force required by the operator to increase the line pressure is not so great as it would otherwise have been when acting over the whole area. When the operator releases the member 88 the line pressure with the assistance of a return spring 82 and the inlet valve spring 30 returns the valves, the piston and plunger to the pistons shown. The spring 44 is. made strong enough to resist low line pressures whilst at the same time being stronger than the force required to open the inlet valve.
Patent GB-1470622-A (GB)
Title: Control device for a sheet instroduction unit
IPC: B65H3/24
Filed: 1975-02-14
Abstract: 1470622 Feeding sheets J BOBST & FILS SA 14 Feb 1975 [22 May 1974] 6418/75 Heading B8R [Also in Division F2] In a sheet introduction unit 1 of a platen press 2 in which sheets 4 to be processed are arranged in a pile 5 on the surface of a cable and are fed one at a time from the bottom of the pile to the press 2 by a suction plate 29, which suction plate 29 reciprocates in the plane of the surface of the table and is arranged to detach the lowest sheet 4 from the pile 5 and move it forward in to a position in which it is gripped by one of a number of conveying grippers 6 on a pair of endless chains 7 for forward feeding in to the press 2, the suction plate 29 is reciprocated by a cam operated linkwork having a lever 25 the effective length of which is adjustable to vary the reciprocating stroke of the suction plate 29, in one direction only, from a common, i.e. unchanged starting position beneath the sheet pile 5 to compensate for variations in the sheet pick-up point of the gripper 6 due to wear and tear &c., of the conveyer chain 7. As shown, a cam operated lever 24 acts via a push-rod 26 to rock the lever 25 which oscillates a shaft 27 to rock a lever 41 which carries and reciprocates the suction plate 29. The connection between the push-rod 26 and the lever 25 is formed by a pivot slide block 34, which is adjustable by a screw and nut assembly 38 along a slot 35 formed in the lever 25, which slot 35 is positioned in the lever 25 at right angles to the push-rod 26 when the lever is in its starting position beneath the sheet pile 5, such adjustment readily varying the length of the lever 5 to effectively vary the reciprocating stroke of the suction plate 29 in the manner set out above.