baber/WOPTO huggingface dataset:
Patent GB-817350-A (GB)
Title: Laminated article and method for making same
IPC: B31C3/00
Filed: 1957-04-26
Abstract: 817,350. Laminates; seaming non-metallic sheet materials. ST. REGIS PAPER CO. April 26, 1957, No. 13323/57. Classes 42 (1) and 140. [Also in Group XVII] A laminate comprises a flexible sheet of foamed polystyrene, having closed pores and a continuous skin, bonded to a sheet of paper, cloth, metal foil, or plastics material. The laminate may be used for making disposable containers for hot drinks, in which the polystyrene layer forms a heat-insulating and waterproofing inner or outer layer, or may be used for making boxes or other containers, or as a lining for jewel cases or packing between glass or polished metal sheets, in view of the softness and high friction of the polystyrene layer, or, since the layer can be readily printed, for making waterproof labels. As shown, polystyrene containing foaming ingredients is extruded from a heated extruding press 21 through an annular orifice 24 to form a tube 26 which foams on emergence and is inflated with compressed air supplied through an orifice 25. The inflated tube is flattened by rollers 28, 29, compressed between rollers 30, 31, bonded between compression rollers 36, 37 to paper webs 34, 35 coated with poly vinyl acetate or other adhesive at 40, 41, and slit by disc knives 42 on each edge into upper and lower laminated sheets which are cut into pieces of the required size by a guillotine 45. In modifications: (1) the rollers 36, 37 are dispensed with, lamination being effected by the rollers 30, 31; (2) the polystyrene tube is slit into separate webs before lamination, these webs passing around rollers such as 36, 37, which may be embossing rollers, and being laminated to the paper webs either on the inner sides during passage between superposed rollers, or, after passing around such rollers, on their outer sides between further pairs of rollers. The embossing of the polystyrene layer may be superficial only, as in Fig. 5, or such that it adheres to the paper web only at spaced points, as in Fig. 7. In making a drinking cup, Fig. 10, from a strip of the laminate obliquely cut at each end and rolled helically, polystyrene layer inwards, the overlapping edges being secured by adhesive, and one of the edges may be stripped of polystyrene, e.g. abrasively or by an adhesive-coated roller, to produce a paper-to-paper joint, or the foam on this edge may be consolidated by a heated roller or by the application of a solvent and pressure; in either ease any gap between the polystyrene layers, which would expose the paper to hot liquid in the cup, may be filled with adhesive.
Patent GB-1332566-A (GB)
Title: Steel having machinabilitty
IPC: C21C7/076
Filed: 1971-05-05
Abstract: 1332566 Free machining steel CREUSOTLOIRE 5 May 1971 [8 May 1970] 13346/71 Heading C7D There is added to the molten steel a sodium salt of sulphurous, this sulphuric or pyrosulphurous acids in conjunction with one or more of Se, Te or Bi. The preferred salt addition is 0À1 to 5 kg/ton, particularly of Na 2  SO 3 , Na 2 S 2 O 3  or Na 2 S 2 O 5 , added to the ladle, with less than 0À06% in total of Se, Te or Bi added to the ingot mould. Se may be added as a sodium salt of selenous acid.
Patent GB-781888-A (GB)
Title: Improvements in the treatment of christmas trees
IPC: A47G33/06
Filed: 1955-05-09
Abstract: The useful life of a cut Christmas tree is extended by coating it with a rubber latex of 30 per cent solids content containing an aqueous borax solution of casein, and preferably containing a dye or pigment.  The tree is dipped in or sprayed with the latex preparation, and allowed to dry in upright position.  The tree may be rendered more fire-resistant by incorporation of mono-ammonium phosphate, urea, formaldehyde and starch in the latex preparation. Pine perfume may be emulsified in the latex preparation or may be sprayed on the tree after the preparation has dried.  Aluminium or bronze powder, or coloured or silvered glass particles, may be sprinkled or dusted on the tree before the latex preparation is dry. Treated trees may be packed in narrow containers.
Patent GB-611653-A (GB)
Title: Improvements in cruets
IPC: A47J47/14
Filed: 1946-05-03
Abstract: 611,653. Cruets. NEWTON BROS. (BIRMINGHAM), Ltd., and NEWTON, P. May 3, 1946, No. 13444. [Class 128] A cruet stand comprises a single central rod 7 over which a centrally - apertured disc 3 having openings for the condiment bottles, is passed and. on which it is spaced from a base plate 1, also in the form of a disc, by a collar 6 on the rod 7, the base plate having a turned-down rim 2 to form a foot and to constitute a recess wherein is accommodated a nut 9 screwing on the rod 7. A stop 8 screwed on the rod forms an upper abutment for the disc 3.
Patent GB-349745-A (GB)
Title: Improvements in furnaces for the melting of metals and the heat treatment of metal objects
IPC: F27B3/00
Filed: 1930-05-01
Abstract: 349,745. Gas-fired furnaces. WELLMAN SMITH OWEN ENGINEERING CORPORATION, Ltd., and SOWARD, H. W., Victoria Station House, London. May 1, 1930, No. 13448. [Classes 51 (i) and 51 (ii).] In a furnace for melting or the heat treatment of metals in which the flames and products of combustion pass continuously in one direction through the heating-chamber, gas is supplied through a central port and air is admitted in the form of converging streams through ports arranged on each side of the gas port and through a port. arranged above the gas port. As shown in Figs. 1 and 2. air entering at 17, 18 passes through a flue 19 beneath the hearth 20 and thence through a flue 3 in the roof to converging air ports 6, 7 at the sides. of the gas port 5 and to an air port 8 above the gas port. An adjustable plate 9 at the base of the port 8 may direct the air entering through the latter port along the upper part of the heating- chamber. The air and gas are delivered into a mixing-chamber 4 the side walls of which are directed towards each other. The gases escape from the furnace through a flue 23 arranged above the air flue and serve to heat the air.
Patent GB-592878-A (GB)
Title: Improvements in or relating to driving means for vehicles
IPC: B62M7/08
Filed: 1945-05-29
Abstract: 592,878. Motor attachments for cycles &c. PRESTWICH, J. A. May 29, 1945, No. 13464. [Classes 79 (ii) and 79 (iii)] In a driving means for cycles and the like, of the type comprising a prime mover driving a friction drum mounted on a pivoted frame the frame is rockable by means of lever mechanism embodying a toggle link. Fig. 1 shows a small inverted petrol engine 10 mounted on frame members 1 and 2 which are attached to the rear forks 3 of a cycle by means of brackets 5 and screws 6. The frame is braced laterally by means of a petrol tank 4. The engine is provided with a sprocket 15 at its inner end by means of which and chain 23 and sprockets 24 two friction rollers 25 are driven. The rollers are mounted on a swinging frame 20, 21 which pivots about the axis of the engine crankshaft. The member 20 encloses the chain 23. The rollers Fig. 3, are adapted to be engaged or disengaged with the wheel by a lever system comprising a lever 32 pivoted at 33 connected to a toggle link 30 in turn connected to the swinging frame. A small compression spring may be incorporated in the toggle link to ensure positive engagement of the rollers with the cycle tyre.
Patent GB-885214-A (GB)
Title: Method of making transparent laminations
Inventor: KNEELING WILLIAM CHARLES
IPC: B29D11/00
Filed: 1958-04-28
Abstract: <PICT:0885214/III/1> Optical elements such as glass plates 11 are coated with a solution of a plastic material, such as polyvinyl formal or butyral, polyvinyl acetate, polyvinyl chloride, polybutylmethacrylate, cellulose acetate or cellulose nitrate, which may contain plasticizers and dyes, by pouring the solution on to the plate while supported on a spinning table 29, for example of cruciform shape having retaining studs 31, and spinning the table as by an electric motor 23 and belt and shaft drive 24, 22, while drawing air over and around the plate to carry away droplets thrown off, the air guiding and moving means comprising a dished baffle plate 15, rotating with the table 29 and having central holes 32 through which air is drawn beneath the plate 11 by vanes 34 on the shaft 22, and an exhaust blower 16 communicating with the casing 17 containing the apparatus.  After drying additional coatings may be similarly applied.
Patent GB-1532341-A (GB)
Title: Rotary electric switch
IPC: H01H19/11
Filed: 1977-03-30
Abstract: 1532341 Rotary mechanical switches CTS CORP 30 March 1977 [31 March 1976] 13490/77 Heading H1N A miniature multi-position rotary switch includes a locating mechanism wherein a cam on the rotor 60 (preferably acting through a detent arm 46) causes tensile stressing of a resilient member fixedly supported at two opposite ends, preferably a portion 48 of a side wall 44 of the switch housing 40, at least between adjacent angular positions. As shown, recesses 61 in the periphery of the rotor 60 are engaged by the detent 41 of arm 46. The rotor 60 carries a spring blade type of wiping contact (30, Fig. 4, not shown) co-operating with contacts formed on a base (10) and connected to terminal pins (15) by a printed-circuit technique. In a second embodiment the moving contact comprises a plurality of wiping portions (37, Fig. 6, not shown) and deposition of an insulating film of glass, for example, in a predetermined pattern on the base conductors (25, 26) enables a binary coded output to be provided. The diameters of rotor flange 62 and aperture 45 in housing 40 are substantially the same so that the reaction from detent 46 is spread over a large bearing area 51 to relieve stress in the rotor shaft.
Patent GB-1022917-A (GB)
Title: Process for the catalytic production of melamine from gaseous cyanic acid
IPC: C07D251/56
Filed: 1964-04-01
Abstract: Melamine is prepared from gaseous cyanic acid and ammonia gas at atmospheric pressure by passing a mixture of said gases having a cyanic acid content of not more than 20% by volume, an input temperature of from 280 DEG  to 330 DEG  C. and a flow rate of 15 normal litres per sq. cm. per hour through a single static bed of granular catalyst which is neither heated nor cooled and has a depth of 10 to 50 cm., reaction heat being removed as perceptible heat of the reaction gas mixture. Specified catalysts are silica gel, boron phosphate and alumina.
Patent GB-1081871-A (GB)
Title: Improvements relating to timing devices and arrangements
Inventor: WEIR HENRY JOHN
IPC: D06F89/00
Filed: 1964-04-02
Abstract: 1,081,871. Folding piece goods. BRITISH LAUNDRY MACHINERY CO. Ltd. July 1, 1965 [April 2, 1964], No. 13543/64. Heading D1S. A device for timing a folding operation on a laundered article carried on a conveyor comprises members 7a, 7b driven to rotate in synchronism with the movement of the article, members 1a, 1b engageable with the periphery of the members 7a, 7b to be driven thereby at a speed dependent on the peripheral speed of the members 7a, 7b, means to engage the members 7a, 7b with the members 1a, 1b in response to the passage of an article past reference positions, and a switch 8a arranged to be actuated by the member 1b, when driven far enough, to initiate the folding operation. In one embodiment, Figs. 1-3, two resinbonded fabric boards 1a, 1b are pivoted about pivots 2a, 2b which lie on a single axis and are carried by levers 3a, 3b pivoted at 4a, 4b and coupled through springs 5a, 5b with solenoids 6a, 6b. Upon energization of the solenoid 6a or 6b the member 1a or 1b is drawn against the edge of a wheel 7a or 7b. The wheels 7a, 7b are geared to the conveyor to move in synchronism therewith and are mounted on a common axis. The wheel 7b is twice the diameter of the wheel 7a and the member 1b is correspondingly smaller in radius than the member 1a. A pin 10 is mounted in the member 1a and accommodated in a recess 11 in the member 1b so that if the solenoid 6a is energized the member 1b is drawn upwards at the same rate as ,the member 1a but if the solenoid 6b is energized only the member 1b is drawn upwards at twice this rate. In operation, the article to be folded is continuously fed by a conveyor 12 and the leading edge thereof passes a microswitch 19 which ensures that the circuitry is set for operation. Passage of the leading edge past a second switch 18 energizes the solenoid 6a and the members 1a, 1b move upwards. When the trailing edge of the article 14 passes the switch 19 the solenoid 6b is de-energized so that the member 1a drops onto an adjustable stop 9a and the member 1b only proceeds upwards at twice its former speed until it strikes a microswitch 8a which energizes a solenoid 16 to move a plate 17 forward to tuck the mid-line of the article 14 between counter rotating rollers 15 to effect a fold. The solenoid 6b is de-energized and the member 1b drops onto the stop 9a. In modifications (not shown), the members 1a, 1b may be slides mounted to slide up the levers by contact with the rotary wheel and interlocking may be by an arm from one member projecting underneath the other. The levers may be operated by hydraulic or pneumatic pistons and cylinders instead of solenoids and the return of the members to the initial position may be by springs instead of gravity. The wheels 7, 7a, 7b, may be replaced by moving belts.
Patent GB-769155-A (GB)
Title: Ship's outboard-exhaust valve, adapted to operate as a non-return valve or as a tonnage valve
IPC: B63B13/00
Filed: 1955-05-11
Abstract: 769,155. Storm valves. NAAMLOOZE VENNOOTSCHAP BRONSWERK. May 11, 1955 [Aug. 21, 1954], No. 13624/55. Class 113. In a ship's outboard-discharge valve having a closed cylindrical valve 13 movable upwards and downwards in a cylindrical chamber 2 of the valve housing 1, the chamber has a lateral outboard-outlet 3 and an annular seat 10 surrounding the inlet 7 against which the head surface of the valve 13 can be sealed. The valve 13 is buoyant and may be filled with material of low specific gravity. The throttling action of a narrow conduit 11 connecting the outlet 3 with the lower part of the chamber 2 dampens the movement of the valve to prevent striking on the seat. A plug 12 closes an inspection and draining opening. The seat 10 is arranged on a flange 8 fixed to the valve housing by bolts 8 to facilitate renewals. The valve can be used as a tonnage-valve by locking it in the closed position, e.g. by means of a locking rod passing through the inspection opening and pressing the valve 13 against the seat 10.
Patent GB-352142-A (GB)
Title: Improved easel for drawing boards
IPC: A47B27/02
Filed: 1930-05-03
Abstract: 352,142. Easels; desks. HOLMES BROS. (LONDON), Ltd. and HOLMES, H., Billet Road, Walthamstow, London. May 3, 1930, No. 13684. [Classes 52 (iii) and 52 (v).] An easel consists of a folding trestle, the rear legs 16 of which carry sliding supporting members 14 to which the drawing board 11 is pivoted at 13 the board being held at the desired inclination by slide members 26 pivoted to the board and slotted to engage pivot pins 29 on the front legs 17 of the trestle. The members 14 each consist of a channel section metal bar with a short limb 14a engaging a rebate in the rear trestle leg 16 and a longer limb 14b with an inturned flange engaging a groove 43 in the leg 16. The members 14 are clamped in position by a nut 45 and bolt 44 passed through the leg 16 and a slot in the members 14. The trestle may be provided with a folding shelf 19, 20 the part 19 supporting a drawer. The board 11 may be slidably mounted on the supporting frame &c. A small table 37 may be hinged to the supporting frame and may carry a swinging tray 40. A crossbar 33 of the front trestle legs may have a rubber pad 35 to act as a foot-rest. In a modification the rear legs of the trestle may have extensions to serve as guides for the members 14.
Patent GB-593744-A (GB)
Title: Improved process and apparatus for the low temperature polymerization of olefins
IPC: C08F210/12
Filed: 1944-07-18
Abstract: <PICT:0593744/IV/1> <PICT:0593744/IV/2> An isoolefin having 4 to 8 carbon atoms per molecule alone or in admixture with a minor proportion of a polyolefin having up to 14 carbon atoms per molecule, is polymerized at a temperature below 10 DEG  C. in a diluent and in the presence of a Friedel-Crafts catalyst to form a slurry of solid polymer particles in cold reaction liquid, by a process wherein the said slurry is discharged into heated water whereby the volatile reaction liquid is flashed off, and the solid particles are then separated from the water.  The catalyst, e.g. aluminium chloride, may be dissolved in an inert low-freezing solvent, e.g. methyl chloride and an internal refrigerant such as liquid ethylene may be employed. In Fig. 1, cold polymerization mixture is delivered through line 7 to reaction vessel 1 and stirrer 3 started.  When the vessel is full, catalyst is delivered through line 8 and spray head 9.  The vessel is cooled by liquid ethylene in refrigerating jacket 2.  Polymerization occurs and the continued addition of material through lines 7 and 8 causes an overflow of polymer slurry through pipe 12 to screw conveyer 16, through pipe 15 and to tank 23 <PICT:0593744/IV/3> <PICT:0593744/IV/4> <PICT:0593744/IV/5> where it drops into warm water where the volatile constituents are flashed off through line 24 and the catalyst deactivated and washed out of the polymer.  The polymer floats to the surface of the water, is caught by buckets 32 on belt 31 and carried under sealing wall 33 to be discharged on the other side thereof.  The polymer again floats to the surface, is caught on the upper surface of belt 35 and is carried under spray 38 and through squeeze roll 43.  In a modification, Fig. 2, the polymer is aided on its way to the flash tank 108 by a water spray 111, works under baffles 115 and 117 aided by reciprocating agitaters 113 and is removed by hand.  In Fig. 3, polymer overflows through pipe 212 into flash tank 213 then via line 219 to stripping vessel 220, then via line 225 and pump 226 to weir box 229 and vibrating screen 230. Similar modifications to that shown in Fig. 3 are shown in Figs. 4 and 5.  Specifications 432,196 and 565,974 are referred to.
Patent GB-1030783-A (GB)
Title: Improvements in or relating to paper cutting apparatus
IPC: B26D1/08
Filed: 1963-04-05
Abstract: 1,030,783. Cutting-apparatus. V. KOBLER, and W. KOBLER, [trading as KOBLER & CO.]. April 5, 1963, No. 13743/63. Heading B4B. An envelope-opener comprises two coating knives 6, 8, and an envelope stop member 21, 22 near the cutting edge of one of said knives and movable away from its envelope engaging position to permit use of the apparatus as an ordinary paper-cutter. The knife 6 is horizontally secured on the base 1 at approximately right angles to the knife 8 attached to the hollow movable beam 5, which is driven by pivoted levers 14, 15 having toothed ends, the inner ends meshing together and the outer ends engaging teeth 16 on the posts 2 secured to the base. When a hand-lever 20 is pressed, the pivoting movement of the levers 14, 15 shifts the beam downwards, tension springs 4a in the housings 5a, 5b then returning the beam to its original position. Different amounts may be trimmed from the edge of an envelope E by adjusting the thickess of the strip 21 forming part of the stop-member 21, 22, which is hinged at 24 to permit it to be moved to an inoperative position; the stop member 21 is vertically adjustable on the member 22 so as to accommodate it to the height of the blade 8. This movement is effected by actuating a spring-loaded knob 26 and bolt 25 pivotally mounted within an eye 28 secured to the lower end of the stop-strip 22, so that when the knob 26 is pivoted to the right the bolt disengages from the beam and is raised by the spring 27 so that the stop member 21, 22 is pivoted into the said inoperative position. In a modification the stop member may be detachable, and it may be attached to the lower part of the apparatus so as resiliently to abut against the knife blade of and follow the movement of the upper part of the apparatus.
Patent GB-352609-A (GB)
Title: Improvements in electric protective devices
IPC: H01T4/10
Filed: 1930-05-05
Abstract: 352,609. Protective arrangements. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and BAKER, F., 17, Woodland Terrace, Charlton, both in London. May 5, 1930, No. 13762. [Class 38 (iv).] A high-voltage discharge device for the protection of transmission systems comprises a pair of carbon block electrodes 3, 7 as shown in Fig. 5, separated by an air gap. The block 2 as shown in Figs. 3 and 4, is T-shaped and has tapering sides so that the air gap may not be lessened by the pressure of the spring contact member 9, &c.
Patent GB-826378-A (GB)
Title: Improvements in or relating to footwear
Inventor: LEWIS JOHN
IPC: B29D35/06
Filed: 1956-05-04
Abstract: 826,378. Attaching soles of thermoplastic material to shoe uppers. LEWIS, J., and RUBBER IMPROVEMENT Ltd. Aug. 2, 1957 [May 4, 1956], No. 13800/56. Class 87(2). [Also in Group VII] Footwear having soles of thermoplastic material (e.g. polyvinyl chloride or polyethylene) is made by assembling the upper and the soling material in a temporary manner with or without the use of adhesive, heating the sole to render it soft and mouldable, and then pressing the assembly in an unheated or cooled mould. In the apparatus shown in Fig. 2, two pre-assembled shoes are mounted in 180 degrees spaced positions on rotatable arms supported on a frame 12. The pre-heating unit 13 is then lowered into position over the top shoe and the plates 13g closed on it, hot air being passed through box 13a until the required temperature of the plastic material has been reached. The arms are then rotated through 180 degrees, the cold or cooled mould 14 is brought up on to the preheated shoe, and the unit 13 is brought down on the shoe which is in the top position. The pre-heating can be effected, if desired, by radiant heat, infra-red, high frequency or other method, besides hot air. A pattern may be embossed on the bottom or sides of the sole if desired. The uppers may be of rubber, leather, canvas or other material. Specification 826,379 is referred to.
Patent GB-259504-A (GB)
Title: Improvements in tire rims
IPC: B60B25/16
Filed: 1926-06-01
Abstract: 259,504. Hayward, F. June 1, 1926. Tyre attachments to rims.-A detachable rim flange 16 is formed with spaced lugs 17 adapted to interengage with corresponding lugs 15 at the edge of the main rim portion 10. The; gaps in the two rim parts are covered by a continuous web 18 on the detachable part. A detachable locking-plate 19 having a lip 20 to engage between two of the lugs 17 is secured by a set-screw 21 threaded into a boss 23 on the flange 16. The latter is also provided with spaced lugs 24 to facilitate the turning movement.