baber/WOPTO huggingface dataset:
Patent GB-568036-A (GB)
Title: Electrode feeding mechanism
IPC: H05B31/00
Filed: 1942-10-20
Abstract: 568,036. Variable-speed ratchet-gear. BRENKERT, K. Oct. 20, 1942, No. 14696. [Classes 80 (ii) and 80 (iii)] [Also in Group XL] Electrodes are fed forward by separately rotating telescoped shafts 7, 8 which are driven from a common driving motor 26, through independently adjustable variable-speed gear. Each gear consists of a one-way clutch 12, oscillated against the tension of spring 32, by arm 14, lost-motion link 20 and common wormgear 24, 25. By adjusting screw 40 the amplitude of the oscillating movement may be varied. Each clutch consists of a tapered pin 27, between which and the shaft rides a friction roller 31. Backward drag of the shafts under the idle movement of the clutch is prevented by similar but fixed tapered pin-and-roller units 34 clutching in the reverse direction.
Patent GB-862505-A (GB)
Title: Irradiation of polymers
Inventor: PINNER SOLOMON HARRIS
IPC: B29C71/04
Filed: 1957-05-09
Abstract: A vinyl chloride polymer or copolymer is mixed with 1/20 to 7 times its own weight of a finely-divided inorganic solid and irradiated with high-energy ionizing radiations to modify the properties. Finely divided inorganic solids referred to are fillers such as silica, china clay and, preferably, carbon black of particle size 20-50 millimicrons.  Anti-oxidants, plasticizers, heat stabilizers and other processing aids may also be present.  Radiations specified are electrons, X-rays, g -rays and b -rays.  The preferred dosage is 5-25 megarads.  In examples, electrons are employed to irradiate sheets comprising mixtures of: (1) polyvinyl chloride, carbon black, dibutyl tin maleate and stearic acid; (2) polyvinyl chloride, carbon black, triallyl cyanurate, dibutyl tin maleate and stearic acid; (3-5) polyvinyl/vinylidene chloride carbon black, dibutyl tin maleate and stearic acid; (6) polyvinyl/vinylidene chloride, carbon black, basic lead carbonate, a dialkyl phthalate and lead stearate; and (7) polyvinyl chloride, carbon black, basic lead carbonate, a dialkyl phthalate and lead stearate.  The product of the invention is stated to be particularly suitable for use for hot water pipes, films, yarns and fabrics.  It may be pressure moulded for articles such as pipe bends, unions and T-pieces.  The Provisional Specification is not restricted to the above proportions of solid or to vinyl chloride polymers and copolymers but specifies also polyesters, polyamides (nylon), polyethers, poly(ethylene terephthalate), polyoxacyclobutanes, vinyl polymers and copolymers (polyalkyl acrylates and methacrylates, polyacrylonitrile and polyvinyl acetate) polymeric monoand di-olefins (cis and trans polybutadiene, cis and trans polyisoprene, polypropylene, polybutylene) and synthetic and natural rubbers.
Patent GB-458672-A (GB)
Title: Improvements in rotary engines, pumps and the like
IPC: F01C1/20
Filed: 1935-05-21
Abstract: 458,672. Rotary engines. FARESO, J., 37, Walmer Road, North Kensington, London. May 21, 1935, No. 14834. [Class 110 (ii)] A rotary internal-combustion engine (which may be modified to act as a pump) comprises a compressor chamber 3a and a working-chamber 3, each having a rotor 1 or 1a with a radial piston 2 or 2a, and a rotary abutment 6 or 6a. Sealing means for the pistons include members 9b provided with spring strips slidable in slots, and pivoted levers 14 which under centrifugal action press outwards on the underside of each piston 2 and retract the packing members radially and axially, or radially only. Split sealing rings 39, 37 are provided in the casing walls, and each ring has two radial projections to prevent rotation. The mixture compressed in the chamber 3a passes to the explosion chamber 3 via an elongated duct 23a in the abutment 6a, an axial slot 26 in the casing wall, and a slot 23 in the rotor 6. Sealing plates 28, 28a are provided. Gears 32 couple the rotor shafts 33,34. The abutments may be of greater width than the rotors 1, 1a. To allow for expansion due to heating of the rotors, the shafts 33, 34 may be arranged in a link bearing 45, Fig. 8, which has flat sides 46 which engage the casing wall. A clearance 47 is provided. A suction valve may be placed in the working- chamber which opens the chamber to atmosphere if the pressure falls below atmospheric. Specifications 427,545 and 458,745 are referred to.
Patent GB-560943-A (GB)
Title: Improvements in electrical signalling systems
IPC: H02J13/00
Filed: 1942-10-23
Abstract: 560,943. Signalling over power circuits. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and ROSEBY, P. N. Oct. 23, 1942, No. 14891. [Class 40 (iv)] High frequency signalling currents superimposed on the supply mains are restricted to a particular portion of the network by associating with each phase wire a condenser which with the reactor ordinarily provided for limiting fault current forms a rejector circuit for the signalling frequency. As shown, the signalling currents are applied to the phase wires of a low tension network by a generator GNR and pass into the high tension network and thence to other low tension networks. In order to exclude the signalling currents from the main input transformer EHT, HT of the high tension network, the reactors RCT are tuned by shunt condensers which are preferably coupled inductively thereto.
Patent GB-1000566-A (GB)
Title: Improvements in or relating to the manufacture of polyurethane foams
Inventor: WOOD JOHN FRANCIS
IPC: C08J9/02
Filed: 1963-04-16
Abstract: A process for the manufacture of cellular polyurethane materials from a reaction mixture comprising an organic polyisocyanate, a hydroxyl -group containing polymer and water as a gas generating agent, comprises introducing the reaction mixture into a mould, the volume of which is less than that of the cellular polyurethane which would be formed if free expansion were permitted, allowing the mixture to react and expand in order to fill and be substantially wholly contained by the mould, the excess gas being allowed to escape therefrom, the reaction mixture then being allowed to cure, thus forming a cellular polyurethane material within the mould.  The volume of the mould is preferably from 2 to 80% of the volume of the cellular polyurethane which would be formed if free expansion were permitted. Hydroxyl-group containing substances used in the examples include a glycerol/propylene oxide condensate and pentaerythritol modified polydiethylene adipate having a hydroxyl content of 2%.ALSO:A process for producing a composite article comprises lining, wholly or partially, a mould with a textile, plastics or other material to which the reaction mixture, which is to produce cellular polyurethane material, adheres.  The reaction mixture which is an organic polyisocyanate, a hydroxyl-group containing polymer and water as a gas generating agent is introduced into the mould, the volume of which is less than that of the cellular polyurethane which would be formed if free expansion were permitted, allowed to react and expand in order to fill and be substantially wholly contained by the mould, the excess gas being allowed to escape therefrom and is then allowed to cure, thus forming a cellular polyurethane material within the mould.  The volume of the mould is preferably from 2-80% of the volume of the cellular polyurethane which would be formed if free expansion were permitted.  Hydroxyl-group containing substances used in the examples include a glycerol/propylene oxide condensate and pentaerythritol modified polydiethylene adipate having a hydroxyl content of 2%.  Lining material specified is duckcloth.
Patent GB-376429-A (GB)
Title: Improvements in or relating to table articles of the character of spoons and forks
IPC: A47G21/02
Filed: 1931-05-20
Abstract: 376,429. Table forks and spoons. WILSON, G. S., 2, Ettrick Road, Edinburgh. May 20, 1931, No. 14940. [Classes 30 and 128.] A combined spoon and fork, of the type having a spoon-like bowl provided at its end with a series of short prongs, has a recess in the back of the bowl portion to receive peas &c. when the article is being used as a fork. The recess D may be rounded and may extend from the roots of the prongs C to the mid-point of the bowl B, as shown in Fig. 2, or alternatively the recess may be of arcuate form, or of rectangular form with arcuate ends, Figs. 11 and 15. The recess is preferably formed so that the smooth inner surface of the bowl is not interfered with. Specification 346,624 is referred to.
Patent GB-1430653-A (GB)
Title: Apparatus for escaping from buildings
IPC: E04F11/04
Filed: 1973-03-28
Abstract: 1430653 Ladder escape apparatus TOYO SHUTTER CO Ltd 28 March 1973 [12 April 1972] 14977/73 Heading E1S Apparatus for escaping from a building comprises a stairway assembly of platforms 16 and ladders 19 hung from a suspension base 5 which is mounted on the roof of a building, the stairway assembly being unfoldable downwardly and foldable upwardly by elongate flexible elements, e.g. ropes 23, 24, operable by drive means, e.g. power-operated winches 8, on the base 5; the platforms 16 are interconnected by hangers 17, e.g. chains, and the ladders are attached foldably between the platforms. A further collapsible hanger 14 connects the top platform to projecting arms 11 of the base 5. The ladders 19 are pivotally and slidably connected at their ends to the platforms, and each ladder comprises treads pivotally connected to two pairs of stiles to form a parallelogram linkage. The ropes 23, 24 are fastened to the bottom platform and extend through holes in the others and over pulleys 12 to the winches 8. The base 5 is mounted for lateral movement on a trolley 3 running on a track 2 along the edge of the roof. The. winch motor is connected to fire alarms in the building so as to operate automatically.
Patent GB-631861-A (GB)
Title: Improvements in or relating to loud speakers
IPC: H04R1/28
Filed: 1947-06-14
Abstract: 631,861. Loud-speakers. FORRESTER, J. June 14, 1947, No. 14981/48. Divided out of 631,799. Drawings to Specification. [Class 40 (iv)] The cross-sectional area of the tube of a loud-speaker as described in Specification 631,799 at any point along its length is an exponential function of its distance from the closed end.
Patent GB-185210-A (GB)
Title: Improvements in pneumatic springs
IPC: B60G17/033
Filed: 1921-05-30
Abstract: 185,210. Urruela y Lara, F. de. May 30, 1921. Pneumatic springs.- Relates to pneumatic springs for use in road and railway vehicles, and consists in improved arrangements for varying the capacity of the compression chamber. The compression chamber O, Fig. 1, common to cylinders B, the piston C of which are connected to the ends of laminated springs, is removable and inter-changeable with other chambers of different capacity, the chamber being selected so that the pistons occupy a suitable intermediate paint under full load. Alternatively, the compression chamber may be divided into compartments some of which may be cut off to reduce the effective capacity. Thus the chamber may consist of compartments o, u, Fig. 3, the compartment o being cut off by valves e provided with seating liquid h introduced at inlets j. The volume of the compression chamber may be varied by screwing it on to the cylinder B. As applied to a railway vehicle, the piston C, Fig. 5, may be supported on a block M<1> sliding on ball bearings q in a bracket, U', and carrying the axle M on ball bearings y<1>, springs c absorbing lateral shocks. A leaf spring L may be interposed between the cylinder B and the frame. Alternatively the piston U may be supported at the middle of a link connected at the ends by shackles to the ends of the leaf springs of two axles.
Patent GB-1342561-A (GB)
Title: Methods of and apparatus for transmitting by television infor mation added to an original document
IPC: H04N7/12
Filed: 1972-03-30
Abstract: 1342561 Composite picture reproduction GRUNDIG EMV 30 March 1972 [1 April 1971] 15090/72 Addition to 1286766 Heading H4F In apparatus for displaying marks superimposed on a background, as described in Specification 1,286,766 and comprising an image of the background 1, Fig. 1, covered by a first polarizing filter 3 upon which the marks are made and a second, relatively crossed polarizing filter 7, such that a TV camera cannot see the background and produces video signals representing the marks only, the transmission band width required for the video signals is reduced by sampling the video signal A, Fig. 2, by fast gating pulses B from clock 12 and producing a pulse D when the sampled valve is above a threshold 25, C. Pulses D are converted to binary full-width pulses E in expander 14 and stored in this form at 15. Transmission of the stored binary video is carried out at a slow, small band width, rate, using slow clock 16. The received video is stored at receiver store 18 and is sampled at a fast rate for use in C.R.T. projector 20 and projection of the mark image on background 1<SP>1</SP>. Several different marks can be simultaneously stored in respective stores for selective projection.
Patent GB-939865-A (GB)
Title: Lubricating billets during hot extrusion
IPC: B21C23/32
Filed: 1961-04-26
Abstract: 939,865. Extruding. KRONPRINZ A.G. April 26, 1961 [April 26, 1960; Aug. 5, 1960], No. 15100/61. Class 83 (4). In the extrusion of hollow metal ingots 4, particularly of steel, a lubricant 9 such as glass, slag or clay is provided in the container 1 above the billet and is bounded by a ring 8 which is deformed during the extrusion. The die orifice is first closed by a plug 7 and a measured quantity of powdered glass is poured into the container. The ingot 4 is then inserted and upon it is placed a soft metal or asbestos ring 8 which is more easily deformable than the ingot. After insertion of the mandrel 3 a measured quantity of powdered glass 9 is placed inside the ring 8. Alternatively a compacted ring element of glass lubricant may be placed within the ring 8 before the mandrel is introduced.
Patent GB-1254247-A (GB)
Title: Burner for gas-fired apparatus
IPC: F23D14/10
Filed: 1970-03-31
Abstract: 1,254,247. Making burners. JUNKERS & CO. G.m.b.H. 31 March, 1970 [28 March, 1969], No. 15110/70. Heading B3A. [Also in Divisions F3-F4] A burner tube is fashioned from a flat highgrade steel plate 10 bent to form a trough and mounted on a base. Burner outlets 12 are formed by punching out holes from the plate 10 before bending, each hole having a rectangular cross-section and four preferably rectangular upstanding flanges 13, the sides of adjacent flanges being spaced by gaps 14.
Patent GB-514977-A (GB)
Title: Improvements in and relating to apparatus for starting internal combustion engines
IPC: F02C7/277
Filed: 1938-05-20
Abstract: 514,977. Turning-gear. BRITISH THOMSON-HOUSTON CO., Ltd., GRAHAM, D. H., TABBERER, G., and FORSLING, B. E. G. May 20, 1938, No. 15133. [Class 7 (v)] An engine starter comprises a turbine 11 driven by an explosive cartridge and having its shaft 12 connected to the engine shaft 25 through gearing 15, 16 and a clutch 22, 23, which is automatically disconnected when the engine shaft overruns the gear-driven shaft 17. As shown, the gases from the cartridge are' admitted through a valve 3 rigidly connected to a valve 4 adapted to connect the inlet pipe 1 to an exhaust outlet 7 when the valve 3 is closed. The clutch member 21 is splined on the shaft 17 and is moved into engagement by a solenoid 30 in series or parallel with a heater plug for firing the cartridge. The valve 3 is held open by a lever 41 engaged by a catch 38 pivoted at 40 and carrying a pawl 36 held by a spring 39 against a ring 33 on the clutch member 21. When the engine starts and the clutch is automatically disengaged, the catch. 38 releases the lever 41 and allows a spring 43 to close the valve 3 and open the valve 4 to divert the gases to the outlet 7. In modifications, (a) the turbine drives the clutch through planetary gearing and a friction clutch ; (b) the solenoid 30 is replaced by a fluid-pressure piston. Specification 366,181 is referred to.
Patent GB-1390912-A (GB)
Title: Injection moulding
IPC: B29C45/28
Filed: 1971-05-15
Abstract: 1390912 Injection moulding BRITISH UNITED SHOE MACHINERY CO Ltd 15 May 1972 [15 May 1971] 15139/71 Heading B5A In a method of injection moulding, e.g. shoe soles, after completion of injection, a plug P (Fig. 2) is inserted into the sprue bore 22 which leads to the mould cavity, to prevent escape of moulding material from the bore 22. In a first embodiment (Fig. 2) injection is effected through a passage 12 in an injection head 10 and an aperture 38 in a slide member 36, a purging member 13 being retracted beyond an inlet port (not shown) extending into the passage 12 from a mixing chamber. On completion of injection, the purging member 13 is advanced to the position seen in Fig. 3 (not shown) thereby ejecting residual material from the passage 12 into the aperture 38 and bore 22. The slide 36 is then moved to bring a second aperture 40 into line with the passage 12 and bore 22, the aperture 40 containing a plug P left from the preceding injection operation. By advancing the member 13 to the position seen in Fig. 4 (not shown) the plug P is pushed into the bore 22. The next injection is effected through the aperture 40, and partly soldified material (P<SP>1</SP>) remaining in the aperture 38 is used for the plug. In a second embodiment (Fig. 7) the slide 36 of the first embodiment is replaced by a generally circular member 86 which has a plurality of apertures 90 and is rotatable on a shaft 88. A plurality of mould assemblies are provided, part of one being shown at 70 with its sprue bore 72. A mixing chamber 74 is connected through a port 75 to an injection passage 62 containing a purging member 63. Operation is similar to the first embodiment but the member 86 rotates through #th of a revolution where eight mould assemblies are provided. In a third embodiment (Fig. 9) the plug P 2  which is inserted into the sprue bore 122 is punched out of a ribbon R of resilient expanded plastics material by a purging member 113. This member 113 is a close fit in the injection passage 112 which is connected by a port 125 to a mixing chamber (not shown). Injection is effected through the hole in the ribbon R formed during the preceding injection operation. The ribbon is moved forwards by automatic feeding means. In a fourth embodiment (Fig. 10) pre-formed plugs P 3  slide from a hopper 195 down a raceway 194 and are fed by loading mechanism 196 into one of a plurality of apertures 190 in a circular member 186. The member 186 is rotated automatically to bring the apertures 190 in turn into line with an injection passage 162. An inlet port 175 connects the passage 162 to a mixing chamber (not shown).
Patent GB-631979-A (GB)
Title: Improvements in or relating to electric lamp holders
IPC: F21L14/02
Filed: 1947-06-10
Abstract: 631,979. Lamp-holders. CONRADI, F. A. J., [Representative of CONRADI, E. S.] June 10, 1947, No. 15311. [Class 38 (i)] In a hand lamp-holder having a base, a lamp socket, and a shroud long enough to prevent the fingers touching the socket, the base 14, the lamp socket 28 and the shroud 12 are all formed of a thermosetting moulded insulating material, the socket 28 being clamped between the base and the shroud. The base 14 carries a skirt 16 which receives the socket 28 which is provided with a radial slot 54 to receive a stop 38 projecting from the skirt 16. A rib 58 on the socket extends into a flange 36 on the skirt to position the leads in an axial passage 32 thereof, and the skirt screws on to the shroud 12. A tubular bodice 18 on the shroud prevents accidental contact with live connections, and the wall 24 of a groove 22 on the shroud abuts a flange 26 on the holder, thereby retaining it in position.
Patent GB-947790-A (GB)
Title: Improvements in or relating to light sensitive photographic materials
IPC: C08G4/00
Filed: 1961-10-23
Abstract: 947,790. Photographic silver halide materials. GEVAERT PHOTO-PRODUCTEN N. V. Oct. 23, 1961 [Oct. 24, 1960], No. 15322/63. Divided out of 945,340. Heading G2C. [Also in Divisions C2 and C3] A photographic silver halide emulsion or adjacent layer contains as sensitizer a compound obtained by condensing a polyoxyalkylene compound with a diepoxide of the formula:- R-(CH 2 ) n -R where R is a 2;3-epoxypropoxy group and n is 1 to 4. The condensation products of polyethylene glycol and 1;2-di (2<SP>1</SP>;3<SP>1</SP>-epoxypropoxy)- ethane or 1;4-di (2<SP>1</SP>;3<SP>1</SP>-epoxypropoxy)- butane are referred to. The emulsions may contain a stabilizer such as 7-hydroxy-5-methyl-S-triazolo- (2, 3a)- pyrimidine. Specifications 548,019, 592,676, 600,058, 748,745, 748,750, 789,823, 793,915, 920,637 and Belgian Specifications 493,464, 568,687, 571,916 and 571,917 also are referred to.
Patent GB-504002-A (GB)
Title: Improved brushman's ruler
IPC: B43L7/00
Filed: 1938-05-23
Abstract: 504,002. Rulers. NEWELL, H. L. May 23, 1938, No. 15353. Convention date, May 27, 1937. [Class 97 (iii)] A ruler is provided with a guide for the fingers of a hand holding a paint brush, the distance of the guide from the surface on which the ruler is supported being at least equal to the diameter of a finger. As shown in the Figure, the ruler 15 is provided with slippreventing pads 20 and has a top finger groove 16, a side finger groove 17, and a dove-tail groove 18 in which slides a carriage 21. The latter has top and side finger grooves 16<1>, 17<1>, and/or finger recesses. 23, 24. The carriage 21 may support a laterally adjustable bar with a hook end in which the brush may rest. In a modification a metal carriage may slide on rails on a flat ruler, provided with rollers to form a parallel ruler.
Patent GB-1360531-A (GB)
Title: Valves for controlling fault indicators in vehicular hydraulic braking systems
IPC: B60T11/34
Filed: 1972-04-04
Abstract: 1360531 Brake systems; valves FIAT SpA and P S BALDWIN 4 April 1972 [16 April 1971] 15378/72 Headings F2E and F2F - A valve 5, for use in a vehicle hydraulic braking system of the kind having separate front and rear brake circuits 1, 8 and 2, 11 a pressure reducer 13 in the rear brake circuit and damage or fault indicating means, i.e. lamps 6, 7, to provide an indication of loss of braking pressure in either one of said circuits, when incorporated in such a system, acts on loss of pressure from either one of said circuits to provide operation of the indicating means and also on loss of pressure from the front brake circuit to by-pass the pressure reducer. The valve comprises a body 18 having bores 19, 19<SP>1</SP> adapted to be connected to the front and rear brake circuits respectively, pistons 34, 34<SP>1</SP> mounted respectively for fluid tight sliding movement in cylindrical cavities 24, 24<SP>1</SP> in the body, and resilient means, i.e. springs 33, 33<SP>1</SP>, acting on the pistons to maintain the pistons spaced, from electrically insulated pins 26, 26<SP>1</SP> fixed in the body and connected to the circuits of the respective damage indicators. When the valve is installed and hydraulic pressures exist in both bores 19, 19<SP>1</SP>, forces due to the pressures acting on the pistons also act to maintain the pistons spaced from the respective pins. Loss of pressure from the rear brake circuit causes the piston to be moved into contact with the pin 26<SP>1</SP> to operate the damage indicator 7 and loss of pressure from the front brake circuit causes the piston 34 to move into contact with the pin 26 to operate the damage indicator 6. There is a passage 35 in the valve body which is adapted to connect the cavity 24 to the rear brake circuit downstream, via the line 17, of the pressure reducer 13, the piston 34 normally isolating the passage from the bores 19, 19<SP>1</SP> and connecting the bore 19<SP>1</SP> to the passage upon movement of the piston to operate the indicator 6. As shown, the bores communicate with the inner ends of the cavities by way of apertures 28, 28<SP>1</SP>.