baber/WOPTO huggingface dataset:
Patent GB-689205-A (GB)
Title: Desk pad
IPC: B43L3/00
Filed: 1950-09-07
Abstract: 689,205. Writing-desk pads. WAGNER, J. Sept. 7, 1950. [Sept. 7, 1949] No. 22696/50. Class 146 (iii). A writing desk pad comprises a hard, flexure-elastic sheet 1, loosely overlying a soft, pressure-elastic sheet 2, the sheets being held together by mechanical means so as to be laterally movable relative to each other. The sheets 1, 2 Fig. 2 may be held together by a frame 3 marginally embracing the sheets all round, on two opposite sides or across the corners, so as to leave a gap a to allow any lateral movement due to differing thermal expansion or elastic properties of the sheets. The frame 3 may be integral with a backing sheet 4 which may be of cardboard. The sheets 1, 2 Fig. 6 are secured together by a flexible band 6 passing through a row of holes 7, with enough slackness to allow lateral movement. The sheets 1, 2, Fig. 10, are secured together by rivets, or screws and nuts, having enlarged heads 10 and shanks 11 which which are smaller in diameter than the holes 9 in the sheets to leave a gap c to allow lateral movement, the lower head 10 being preferably countersunk in the lower sheet 2. The hard upper sheet 1, may be of vinyl or acrylic resin derivatives, cellulose acetates or like materials and is thin enough to allow it to follow elastic movements of the soft sheet 2 under writing pressure, the sheet 2 being of soft rubber, elastorners, textiles or like materials and preferably thicker than sheet 1. The sheet 1 may be transparent to show printing on the sheet 2 or an intermediate sheet 8.
Patent GB-706867-A (GB)
Title: Improvements in or relating to amplifiers for driving electro-magnetic deflector systems for cathode ray tubes
Inventor: STARKS-FIELD ALFRED BENJAMIN
IPC: H03K4/26
Filed: 1951-09-28
Abstract: 706,867. Saw-tooth generating circuits; valve amplifiers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 21, 1952 [Sept. 28, 1951], No. 22735/51. Class 40 (6) A D.C. amplifier for feeding cathode-ray tube deflection coil comprises a direct current negative feed-back loop from the deflection coil system, including a corrector circuit incorporating a resistance and a capacitance having a product proportional to the ratio of the deflector coil inductance and resistance so that the coil current follows the waveform and D.C. component of the input signal The output of the amplifier VI, V2 is fed to a deflection coil LR and to a valve V3 in a negative feedback path to the input of the amplifier. The capacitor C and resistor R2 have a time constant CR2 equal to that of the coil (L/R) and it is explained that the feedback is thus proportional to the current through the coil and is independent of the shunt capacitance. In an alternative circuit (Fig. 3 not shown) a direct coupled amplifier precedes the output valve and the resistance and capacitance are connected in the feedback loop in series with the input circuit.
Patent GB-479141-A (GB)
Title: Improvements in or relating to reinforced paper
IPC: D21F11/00
Filed: 1936-08-18
Abstract: 479,141. Reinforced paper. WILLSPAUGH, W. H. Aug. 18, 1936, No. 22736. Convention date, April 25. [Class 96] Reinforced paper is manufactured by forming a web of paper on a suction forming roll, e.g. of the type described in Specification 278,817, [Class 96], feeding a reinforcing fabric on to the paper web before it leaves the forming roll, removing the composite sheet from the forming roll and subjecting it to heat and pressure. Suitable apparatus comprises two stock vats 10, 11 and co-operating suction forming rolls 12, 13 carrying forming wires 14, 15. A sheet of fabric 21 or like reinforcing material treated, if desired, with a preferably moisture-repelling adhesive, e.g. latex, at 24, is applied to the wet paper web formed on one of said forming wires 14 at a point just beyond the suction area A. The fabric is forced slightly into the paper due to the slight frictional resistance to its forward movement. The composite material passes forward and is transferred at 26, e.g. by suction to a second paper web which has been formed on the roll 13. The reinforced paper then passes on to the driers where its constituent parts are bonded together by heat or pressure, any adhesive material with which the reinforcing fabric may have been coated becoming tacky during this process. In a modification, the fabric 30, Fig. 4, is supplied under a guide roll 32 to the forming wire 33 at a point below that at which the roll emerges from the stock. In this way a deposit of paper fibres is formed on each side of the reinforcement, and paper fibres are securely interlocked and matted on to the reinforcement. A further separately formed web of paper may be applied to this composite product as shown in Fig. 1.
Patent GB-1152015-A (GB)
Title: Extrusion Adaptor
Inventor: LENNOX FORREST RAYMOND
IPC: B29C48/08
Filed: 1967-05-16
Abstract: 1,152,015. Adaptors for sheeting dies. DOW CHEMICAL CO. 16 May, 1967, No. 22763/67. Addition to to 1,131,127. Headings B5A and B5B. In an extrusion adaptor used particularly for preparing multi-layer films, a first molten polymer is supplied to the inlet end of the central cylindrical passage 13 of a housing 11, and a second polymer stream is fed simultaneously through a passageway 42 to a plenum 39 contained in the said housing. A bushing 62 having a circular inlet end 65 communicating with the central passage, and a discharge end 66 of elongated cross-section, situated between a passageway 44, connecting the said plenum and the central passage, and the discharge end 14 of the central passage, is contained within the central passage. A dam formed by dam portions 31 and 41 maintains a weld line at the location of the dam, the dam being disposed in a plane containing the major axis of the cross-sectional configuration of the elongate opening 66. In operation a polymer flowing through the central passage of the housing comes out of the bushing having an elongated cross-section and is then encapsulated with a second polymer from the plenum 39 and passageway 44. The composite stream passes from the extrusion adaptor to a sheeting die (not shown) and is extruded as a composite multi-layer film, the weld line being at the edge of the composite film and hence easily cut off. The adaptor may include a second plenum 55 having a dam 56 and a passageway 57 from which a third polymer may flow encapsulating the polymer flowing through a second bushing 67 in the manner described above. In this case the elongate discharge ends of the two bushings are substantially parallel and the two dams lie in a plane containing the major axis of the elongate openings of the bushings. The production of a flat film having layers of (i) a vinylidene chloride-vinyl chloride copolymer (ii) an ethylene-vinylacetate copolymer; (iii) polyethylene, is exemplified.
Patent GB-514597-A (GB)
Title: Improvements in or relating to prepayment meter mechanism
IPC: G07F15/06
Filed: 1938-02-04
Abstract: 514,597. Prepayment mechanism for meters. GRASEBY, R. C. Feb. 4. 1938, No. 22776/39. Divided out of 512,931. Drawings to Specification. [Class 27] Relates to prepayment mechanism, particularly for electric meters, comprising controlling means for a supply, actuating means for moving the controlling means to and holding it in a supplyestablishing position, further means co-operating with setting mechanism to determine the instant at which the controlling means shall be operated to a supply - interrupted position, prepayment mechanism which h advances the setting mechanism and also causes the actuating means to become operative (under the control of the setting mechanism and said further means), and motor mechanism to return the setting mechanism to cause the controlling means to cut-off the supply when the quantity prepaid has been supplied. According to the invention, the controlling means is actuated by a spring and the further means is applied to the setting mechanism by a small proportion only of the pressure of a force-applying means (such as a spring) which is independent of the actuating means, the full pressure being released to return the controlling means to the supply-interrupted position, so that a smaller force may be applied between the further means and the setting mechanism than is required for the satisfactory actuation of the controlling means to the supplyestablishing position and the loading on the motor mechanism may be correspondingly reduced. The mechanism described and shown is identical with that described and shown in Specification 512,931. The actuating and the force-applying means are the springs 51 and 19 respectively described .therein. Specifications 294,739, [Class 27], and 455,620 also are referred to.
Patent GB-362469-A (GB)
Title: An improved radiator having a tubular body and cast-on headers, and a method of manufacture of such a radiator
IPC: B22D19/00
Filed: 1930-07-29
Abstract: 362,469. Casting composite articles. POSSENTI, A., 23, Lungomare Nazario Sauro, and SCORZA, C., 159, Via Andrea Costa, both in Pesaro, Italy. July 29, 1930, No. 22804. Addition to 358,626. [Class 83 (i).] In casting radiators, as in the parent Specification, each tube end 1 is provided with a number of slots 8, Fig. 2, parallel with the axis. A core 4, Fig. 1, is arranged to fit the inside of the tube end so that the molten metal passes into the slots 8 but does not enter and reduce the bore of the tube.
Patent GB-877252-A (GB)
Title: Improvements relating to tamping plugs for use in shot holes for blasting purposes
Inventor: BUTLER WILLIAM
IPC: F42D1/20
Filed: 1959-07-03
Abstract: 877,252. Tamping plugs. STEMMING SUPPLY CO. Ltd. July 4, 1960 [July 3, 1959], No. 22864/59. Drawings to Specification. Class 9(1). A tamping plug is provided comprising a bag made for example of fireproofed paper or polyvinyl chloride and filled with sand, the mouth of the bag then being folded over and secured by a staple or by welding, when the bag is of plastic.
Patent GB-413133-A (GB)
Title: Improvements in or relating to electrical wet battery and accumulator of a new type
IPC: H01M10/36
Filed: 1933-08-16
Abstract: 413,133. Batteries. JACKSON, C. C., 241, CarhuÚ Street, Buenos Aires. Aug. 16, 1933, No. 22921. [Class 53.] Zinc and carbon electrodes F, D are immersed in a moist mass of carbon, graphite, and iodine. The zinc electrode may consist of plates F connected together and to a zinc container B lined with cellulose or other absorbent material C as shown in plan in Fig. 2. The container is filled with a mixture G of iodine, carbon and graphite in a moist state and is enclosed in an outer sealed receptacle A. The cell may be charged like a storage battery and in order to indicate the state of charge the mixture G may contain a halogen salt of zinc such as zinc chloride. Completion of the charging operation is indicated by a sudden rise in the terminal voltage.
Patent GB-818808-A (GB)
Title: Improvements relating to fuel tanks for motor cycles
IPC: B62J35/00
Filed: 1957-07-19
Abstract: 818,808. Motor-cycle fuel tanks. ZUNDAPP-WERKE G.m.b.H. July 19, 1957 [July 28, 1956], No. 22932/59. Classes 79(3) and 136 (3) In a motor-cycle or the like comprising a fuel tank 1 with a tunnel 2 at its bottom engaging round part of the frame, parts of the walls of the tunnel project beyond the front and rear of the tank and are secured to or bear against the steering head 5 at the front and the frame or a sheathing panel serving as a frame or support part at the rear. The walls of the tunnel are formed of a U-shaped plate which projects at its end parts 3, 4 beyond the front and rear of the tank. The front part 3 is made of part circular shape and partially embraces the steering head 5. The part 3 may be of resilient or pre-stressed construction. Rubber may be vulcanized to the inside of this part 3. A screw 6 connects the part 3 to a frame member 7. The rear parts 4 of the tunnel walls are secured by screw connections 8 (Fig. 4) to two opposite straps 9 which are welded to the frame member 7. Elastic inserts 9a are interposed between the shanks of the bolts and the respective holes in the tunnel walls. The rear end of the part 4 abuts against the edge 12 of a sheathing panel 13. An elastic insert may be provided at this abutment point. For stiffening purposes a transversely disposed bush may be welded to the part 4 and longitudinally extending ribs 11 (Fig. 3) may be formed in the walls of the tunnel.
Patent GB-421997-A (GB)
Title: Adjustable round nose diamond turning tool
IPC: B23B27/20
Filed: 1933-08-17
Abstract: 421,997. Diamond tools. SPEYER, J. S., 85, Hatton Garden, London. Aug. 17, 1933, No. 22942. [Class 124] A diamond with a semicircular cutting edge is mounted on a block D pivoted about the centre of this circle at G. This block can be turned by the nut K through gearing F, J, the amount of movement being indicated on a scale by the pointer L. The block is clamped in its adjusted position by the screw G. A soft metal plate H is inserted between the clamping plate B and the tool body.
Patent GB-505815-A (GB)
Title: Improvements in or relating to anti-vacuum valves for fluid conduits
IPC: F16K15/14
Filed: 1938-08-03
Abstract: 505,815. Anti-vacuum valves. GROENIGER, W. C. Aug. 3, 1938, No. 22971. Convention date, Aug. 3, 1937. [Class 135] An anti-vacuum valve for use on supply conduits to prevent return flow comprises a pair of dished annular flexible diaphragms 40, 41 seating one on the other at their inner peripheries. Their outer peripheries are clamped about a cage 42 by screwing together parts 28, 29 of the casing. The fluid inlet pipe 34 is screwed into a socket 35 on the part 28 which is formed internally with a nozzle 33 adapted to direct the flow of liquid through the valve. In a modification, a single diaphragm cooperates with a rigid seat at its inner periphery.
Patent GB-598631-A (GB)
Title: Improvements in or relating to pistons and means for packing the same
IPC: F16J9/22
Filed: 1945-09-06
Abstract: 598,631. Pistons. ALLSOPP, A. E., GRAHAM, E. B., and SPECIALLOID, Ltd. Sept. 6, 1945, No. 22988. [Class 122 (i)] A piston has a radially slit metal wearing shim ring 18, accommodated as to its radially outer portion in an annular groove 12 at one side of a packing ring 14 and as to its inner portion in an annular slot 20 that opens into the bottom of the groove 12 ; the outer peripheral edge of the shim ring is uncovered and spaced from the edge of the recess by a space equal to its own thickness and radially inwards away from the adjacent peripheral face of the grooved portion of the piston ; and the slot is of a width equal to the width of that portion of the shim ring which is slidingly received within it without keying &c. The face of the shim ring remote from the packing ring may be inclined, V- shaped or convex and one edge of the ring be bevelled. At the crown of the piston, the shim may be one limb of an L-section ring whereof the other limb surrounds the external periphery of the crown.
Patent GB-489365-A (GB)
Title: Improvements in or relating to printing presses or machines
IPC: B41F21/08
Filed: 1937-08-20
Abstract: 489,365. Printing-machines; feeding sheets. BAILEY'S PRINTING INVENTIONS, Ltd., and BAILEY, J. Aug. 20, 1937, No. 23109/36. [Classes 100 (i) and 100 (ii)] A machine for printing envelope blanks, bags, or other articles is constructed so as to print a number of blanks at each cycle of the machine, the printing-cylinder or bed being fitted with a number of printing surfaces or plates from each of which an impression is taken for each cycle of operations of the machine. As applied to a rotary machine six printing-plates 14 are arranged on a printing-cylinder 13, and six impressions are printed on blanks fed from a magazine 27 at each rotation of the cylinder 13. The cylinder 13 may coact with an impression roller, or as shown print in coaction with tables 17 carried by a pair of feed-chains 16 fitted with spring-closed grippers 21 which carry the blanks beneath the printing-cylinder. While passing along the upper run of the conveyer the tables 17 are supported by a pair of fixed rails. The blanks are fed from the bottom of the hopper 27 by means of a reciprocating suction separator 28, which delivers the blanks to a gripper drum 30 from which the blanks are transferred to the grippers 21. Springs 35 hold the grippers of the drum 30 in their open or closed position, and fixed pins engage channel like members secured to the gripper shafts to move them to their open and closed positions. The grippers 21 are opened to take the blanks by means of a fixed cam 26 engaging a pawl 25, and to deliver the printed blanks by means of a fixed cam 52 arranged near the delivery hopper 51. The printing- plates, which are preferably of the kind described in Specification 413,270, may be arranged two or more abreast on the printing- cylinder and two or more blanks may be fed at a time from different magazines. The invention may be applied to platen machines by arranging more than one printing-plate on the bed of a machine comprising upper and lower printing members which are reciprocated towards and away from one another. The feed mechanism may also be applied to machines other than printing-machines, e.g. to perforating or numbering machines.
Patent GB-699691-A (GB)
Title: Improvements in or relating to means for securing printing plates in position on a plate cylinder
IPC: B41F27/10
Filed: 1950-09-20
Abstract: 699,691. Printing surfaces. GOSS PRINTING PRESS CO. Sept. 20, 1950 [Feb. 7, 1950], No. 23113/50. Class 100(ii) Apparatus for securing a printing plate 30 having grooves 31, 32 on its underside adjacent to the leading and trailing edge respectively comprise leading edge clamps 60 each including a hook for engaging the groove at the leading edge of the plate, and trailing edge clamps 90 each having hooks engaging the trailing edge groove of the plate and including radially movable weights which move under the action of centrifugal force to bias the hook in a plate clamping direction, so that during operation elongation of the plate is automatically taken up. The clamps are adapted to run on rails in helical grooves 50 (Figs. 3 and 4) in the plate cylinder, and are moved into position by a wrench operating a worm gear 101 (Fig. 8) in turn operating a pinion 100 engaging racks 51 in the grooves 50. A further wrench operates wing- nuts 105 to engage grooves 54, 55 in the sides of the grooves 50 in the plate cylinder 21 so as to maintain the pinion 100 in engagement with the rack. Side clamps are also provided having abutments 135 which engage square cut edges 40 of the plates, and are positioned by a wrench inserted in a hole provided in the abutment, thus allowing the plates to be mounted near to one another. Elongation of the plate during operation is automatically taken up by the trailing edge clamps each of which is provided with a weight 120 (Fig. 9), which is urged upwardly by centrifugal force during operation so that its upper edge engages the edge 126 of a wedge block 125 mounted on a light spring 112. The hook of the trailing edge clamp is mounted on an arm 111, pivoted in the curved portion 114 of the light spring 112, so that the hook is maintained in engagement with the groove 32 in the plate 30.
Patent GB-996538-A (GB)
Title: Improvements in lift trucks
Inventor: DRAKE RONALD
IPC: B66F9/10
Filed: 1963-06-11
Abstract: 996,538. Side-loading masted lift trucks. JOSHUA SHAW & SONS Ltd. May 29, 1964 [June 11, 1963], No. 23152/63. Heading B8H. The mast assembly 1 of a side-loading lift truck is moved on rails transversely of the truck by chains 7 secured to the mast assembly and passing around guide pulleys 11 and driven chain wheels 9 mounted on the truck frame. The shaft 10 supporting the chain wheels 9 is rotated by a fluid motor 13 through a reduction gear mechanism 12.
Patent GB-1459404-A (GB)
Title: Gas turbine engine fuel system
IPC: F02C9/38
Filed: 1973-05-16
Abstract: 1459404 Gas turbine engine fuel systems; turbines LUCAS INDUSTRIES Ltd 26 April 1974 [16 May 1973] 23266/73 Headings F1G and FIT A gas turbine engine fuel system comprising a two stage fuel pump having an air turbine driven second stage 12 controlled by a servomotor actuated air throttle valve 14, a main fuel throttle valve 15 and a fuel servo throttle valve 16 in series with the latter and responsive to the pressure drop thereacross, includes a connection between the air throttle servomotor 42 and the servo throttle valve 16 such that opening of the latter causes servomotor 42 to open air throttle valve 15. The system includes a valve 28 which derives a pressure signal responsive to the pressure drop across main fuel throttle valve 15, the signal acting on the lower end of fuel servo throttle valve spool 22 so as to position the latter to maintain the pressure drop across main valve 15 constant, in similar manner to that described in Specification 1459416. A piston portion 25 at the upper end of servovalve spool 22 is acted on by a pressure tapped via restrictions 36, 37 from a point downstream of the servovalve 16. This pressure also acts on the right face of air throttle servomotor piston 41. Thus when main valve 15 is suddenly opened to increase fuel flow, servo spool 22 moves rapidly upwards causing piston portion 25 to eject a high-pressure stream of fuel into servomotor cylinder 42 with consequent leftwards movement of piston 41 and opening of throttle 14 to increase the air supply to turbine 13.
Patent GB-1334754-A (GB)
Title: Optical scanning apparatus
IPC: G06V10/12
Filed: 1971-04-19
Abstract: 1334754 Optical scanner E WILDHABER 19 April 1971 [9 March 1970] 23278/71 Heading G4M [Also in Division G1] An optical scanner has a rotor 20 carrying lenses 21 in a circle and arranged to rotate about its axis 22. Situated on the axis is a filament of an incandescent lamp 25 arranged to produce a line of light. Coaxial with rotor 20 is a housing 19 having a cylindrical surface 23 carrying a record 24. The lenses focus the line of light on to the record. The light may pass through a half silvered mirror 27 to the record, be reflected and deflected by the record to a photo-cell. The line of light may be a real image created by a lens, a mirror and a source (Fig. 10, not shown) or may be created by a source 66 and a tapered light pipe 65. A line of light is produced on the axis of rotor 20<SP>11</SP> and is focused by lens 21<SP>11</SP> on to the record. An image of the record is focused by lens 21<SP>11</SP> on to the record. An image of the record is focused by lens 21 u <SP>11</SP> on a photo-cell 67. The record is supplied with characters formed by bars in selected cells (Figs. 1 to 4, 12-15, not shown) and is arranged so that the line of light is received across a cell diagonal.
Patent GB-1182176-A (GB)
Title: Catalyst
IPC: B01J27/057
Filed: 1967-05-19
Abstract: 1,182,176. Oxidation catalysts. ROHM & HAAS CO. 19 May, 1967 [6 June, 1966], No. 23324/67. Heading B1E. [Also in Division C2] Oxidation catalysts comprise CoMoO 4  fused with one or more of As 2 Te 3 , Bi 2 Te 3  and Sb 2 Te 3 . The catalyst may be promoted by Cu 2 Te. The catalyst may be supported on SiO 2 , clay, quartz, ZrO 2 , Al 2 O 3  or SiC. Catalyst particle sizes are given and details of fusion temperatures.