baber/WOPTO huggingface dataset:
Patent GB-1108862-A (GB)
Title: Extrusion method and apparatus
Inventor: HENRY JAMES ERWIN
IPC: B29C48/47
Filed: 1965-04-13
Abstract: 1,108,862. Mixing apparatus. OWENS-ILLINOIS Inc. 13 April, 1965, No. 15676/65. Addition to 1,095,493. Heading B1C. [Also in Division B5] The centripetal extruded described in Specification 1,095,493 is modified in that the plate 70 which separates the stator and rotor and defines the plasticization zone 80 is provided with an inner wall 72 which diminishes in height from adjacent feed opening 41 to extremity 75. By this means unplasticized material is led between walls 71, 77 by the clockwise rotation of the motor and as plasticization takes place material flows around wall 72, see Fig. 6 (not reproduced), to be centripetally urged towards extrusion orifice 37. Furthermore newly arriving material does not contaminate already plasticized material and stagnation and blocking are avoided. In a simpler form, Fig. 3 (not shown), the plasticization zone is bounded by a wall of decreasing radius in the clockwise direction with a nose (62) being formed adjacent feed opening 41.
Patent GB-1380828-A (GB)
Title: Combined tooth and cutting edge member for an earth-working device
IPC: E02F9/28
Filed: 1972-04-05
Abstract: 1380828 Earth-cutting edges CATERPILLAR TRACTOR CO 5 April 1972 15759/72 Heading E1F A combined tooth and cutting edge member for an earth-working device comprises a body portion 18 adapted to be detachably secured to the device and having two mutually spaced substantially colinear cutting edges and a single tooth 20 integral with the body portion and projecting therefrom between said two cutting edges so as to be flanked on each side by the latter. The tooth may be welded to the body portion, or the tooth and body portion may be formed from a single piece of metal either as a casting or as a forging. The tooth may be of shallow inverted V shape in transverse cross section, the section decreasing progressively towards the leading end of the tooth.
Patent GB-855690-A (GB)
Title: Improvements relating to safety means for retaining a rising and falling platform and the like a predetermined level
Inventor: PECK ALBERT WILLIAM
IPC: B66B17/34
Filed: 1958-05-16
Abstract: 855,690. Keps; fork lift trucks; platform elevators on vehicles. BURTONWOOD ENGINEERING CO. Ltd. May 15, 1959 [May 16, 1958], No. 15774/58. Classes 78 (3), 78 (4) and 78 (5). A safety mechanism for a lifting platform, e.g. in a lift, a rear end loader of a lorry, or a fork lift truck, comprises a cam 15 secured to the platform and a stationary platform supporting spring bolt 7 which permits cam 15 to pass freely in an upward direction, and which is retracted to permit the platform to be lowered, when cam 15 is raised above lever 14 and then lowered thereby causing the lever to retract the bolt by pressure on a stud 11. The bolt and spring 10 are housed in a base 3 in a block 1, which is slotted to accommodate lever 14. A bar 8 engages a flat 6 on the bolt to limit its extension, and to hold it against rotation.
Patent GB-612557-A (GB)
Title: Improvements in or relating to welding
IPC: B23K11/08
Filed: 1946-05-27
Abstract: 612,557. Making ordnance &c. tubes. HAMILTON, A. F. W., HARDING, E. W., RAILTON, C. L., and MITCHELL, S. S. C. May 27, 1946, No. 16034. [Classes 83 (ii) and 83 (iv)] Coiling; ; drawing welding.-Apparatus for welding longitudinal members helically inside a tube 18 such as the four rails of a rocket projector, comprises a cylindrical fluid-cooled mandrel 11 helically slotted to receive the members and having a transverse electricallyconducting disc 15 for carrying the welding- current. The mandrel 11 is mounted at one end of a frame-mounted shaft 2, the other end supporting a handled dial plate 3. The tube 18 is fitted over the mandrel 11 with the longitudinal members in the slots 12 and held by a buffer tube 19 co-operating with a cam 21 and hand lever 22 on a block 23 adjustably located, and held by a spring plunger 24, on the shaft 2. The dial plate 3 has registering holes corresponding with the centre lines of the longitudinal member flanges, and is locked by a pin 7 while a pair of flanges of opposite members are spot welded between electrodes clamped exteriorly of the disc 15. On completion of four pairs of welds thus, the block 23 is freed and moved along the shaft 2 and the cam 21 rotated to force the tube 18 over the mandrel 11, thereby drawing the members through the slots 12 and forming them to the required true helical shape and preparing the tube 18 for the next welding sequence. The members are flanged U-shape, Fig. 5 (not shown), and are slotted at intervals across their limbs for forming to the helical shape.
Patent GB-635484-A (GB)
Title: Improvements in or relating to speed regulators
IPC: H04M1/315
Filed: 1946-05-27
Abstract: 635,484. Speed-responsive brakes. TELEFONAKTIEBOLAGET L. M. ERICSSON. May 27, 1946, No. 16075. Convention date, June 7, 1945. [Class 103 (i)] In a speed regulator, particularly for the dials of telephones, the weights 4 upon which centrifugal force acts to. apply a friction surface on a shoulder 10 to a fixed drum 11 are each mounted by an open-ended slot 5 upon a pivot pin 3 carried by a plate 1 secured to and rotatable by a pinion 2. The weights are held in position on the pins 3 by the springs 7 which counteract the centrifugal force. The other ends of the springs are attached to a plate 12 which frictionally engages the plate 1 and can be turned about the axis of this plate to adjust the tension of the springs. The plate 12 can be locked in position by a thumb-screw 15. Each weight 4 may comprise upper and lower parts riveted to a middle plate which is provided with the shoulder 10.
Patent GB-203411-A (GB)
Title: Improvements in or relating to endless tracks for tractors and other heavy vehicles
IPC: B62D55/04
Filed: 1922-06-09
Abstract: 203,411. Redenti, A. June 9, 1922. Endless-track vehicles.-Relates to improvements in endless tracks of the type described in Specification 137,484, [Class 144 (i), Wheels for vehicles]. In the form shown in Fig. 3, in order to avoid projection of portions of the shoes beyond the upper surface of the bearing blocks and to render the device applicable to wheels of different widths, a shoe A is suspended from the bearing block B by a, central link F placed partly in a recess D of the block and partly in a recess C of the shoe, or in a recess in one only of these pieces. The link F and pivot E permit rolling of the block on the shoe A. In alternative arrangements the shoes and the bearing blocks are loosely held together by links or similar connections while the drive is transmitted by transverse bolts or other projections on one part which come into engagement with the other when the bearing blocks are in contact with the wheel. In the form shown in Fig. 29, the block B has projections M<2> which fit recesses F" in the shoe, the ends of the blocks B having rounded surfaces K to prevent jamming of the block between the lugs of the shoe. In the form shown in Fig. 33, a pin E fastened to the shoe A engages in a slot in the plate F<2> carried by the block B, thus completely enclosing the suspension joint and protecting it from. sand and grit. In the form shown in Fig. 38, each block B is longer than the corresponding shoe A and the blocks surround the tyre as a complete armour. The blocks may be replaced by a rim applied upon or on the side of twin tyres or a single tyre. Means are provided for joining up the ends of the belt and locking it in position on the wheel and storage means are provided on the vehicle for carrying the belt when not in use.
Patent GB-1025413-A (GB)
Title: Clamp for attachment of the spring component of a resilient tooth of a harrow on to the rigid part of the tooth
IPC: A01B35/24
Filed: 1964-04-17
Abstract: 1,025,413. Agricultural implements. A. ANDERSENS STAALVAREFABRIK A/S. April 17, 1964 [May 4, 1963; May 15, 1963], No. 16115/64. Heading A1B. A clamp for attaching a spring member 8 to a soil working member 4 of a resilient tooth of a harrow comprises a clamp 5 which embraces the spring 8 and member 4. The clamp is provided with a clamping bolt 11 which passes through two clamping flaps 7 provided with faces which abut on the member 4, the bolt also passing through a slot formed in the member 4. The clamp is provided with flaps 14 which act as a guide for a further spring member 16.
Patent GB-702079-A (GB)
Title: Improvements in or relating to aircraft undercarriages
Inventor: RANSOM RICHARD SUTTON
IPC: B64C25/60
Filed: 1951-07-06
Abstract: . 702,079. Hydraulic shock absorbers. BRITISH MESSIER, Ltd. May 15. 1952 ,[July 6, 1951], No. 16129/51. Class 108(3) In an aircraft undercarriage means operable at will are provided to prevent or reduce the yielding of a shock absorber during take-off, the means being arranged for further and automatic operation after take-off to restore the shock absorber to the normal yielding condition before landing. The invention is described as applied to a shock absorber similar to that disclosed in Specification 451,901. A hollow plunger 12 has a head 18 slidable within a cylinder 11 and over a hollow piston rod 16 which is rigid within the cylinder 11. The rod 16. carries a piston 17 slidable within the hollow plunger 12. The interior of the piston rod 16 is connected with the main cylinder space 27 by radial ports 20 which terminate in restricted orifices 21 and ports 22 controlled by a oneway valve 23. A space 26 between the piston 17 and the head 18 is connected with the space 27 by restricted orifices 24 controlled by a one-way valve 25 and with compressed air space 15 in the plunger 12 by one-way valve-controlled ports 29. A piston 31 is operable by rotation of a cam 37 (acting on plunger 33 and spring 35) to close the ports 20. The cam 37 is actuated by a lever 38 against a return spring 39. Operation.-When the piston 31 is in the position shown in Fig. 1, the shock absorber functions as an hydro-pneumatic device. On compression, the valves 23, 25 close, and liquid flows through the orifices 21 into the space 15 via the piston rod 16. Liquid also flows freely from the piston rod 16 through the open valve 29 into the space 26. On extension, liquid flows back freely from the space 15 via the open valve 23, and liquid in the space 26 is forced through the orifices 24. When it is desired to render the shock absorber rigid to compression loads the lever 38 is rotated anti-clockwise until a notch 40 in the cam 37 engages the end of the plunger 33 (Fig. 2). The piston 31 then covers the ports 20 and prevents all flow from the space 27. This engagement may prevent return of the lever by the spring 39. A duct 42 transmits pressure in the space 27 to the underside of the piston 31 and releases the lever 38 which returns. to its Fig. 1 position. When all compressive load is relieved, as when the aircraft becomes airborne, pressure in the space 27 drops and the piston 31 is returned to the Fig. 1 position by the spring 35. The invention is applicable to the nose wheel of an aircraft designed for assisted take-off.
Patent GB-1520511-A (GB)
Title: Production of mushroom spawn
IPC: A01G1/04
Filed: 1975-04-18
Abstract: 1520511 Growing mushroom spawn H J HEINZ CO Ltd 7 April 1976 [18 April 1975] 16140/75 Heading A1E [Also in Division B8] In growing mushroom spawn a sterilized particulate nutrient material 5, e.g. rye, millet, or horse manure, inoculated with mycelium, is placed in a sterilizable bag comprising at least a panel of microporous plastics sheet material which is a bacterial filter and permits passage of oxygen and carbon dioxide.
Patent GB-1411971-A (GB)
Title: Process for the immersion plating of copper on iron or steel
IPC: C23C18/38
Filed: 1972-04-07
Abstract: 1411971 Plating with copper IMPERIAL CHEMICAL INDUSTRIES Ltd 23 March 1973 [7April 1972] 16150/72 Heading C7F Iron or steel is plated with Cu by immersion in an aqueous bath containing a soluble Cu salt, an agent capable of complexing Cu ions, and a conjugated unsaturated nitrile or oxime. The Cu salt may be the sulphate, chloride, acetate, borate, citrate, phosphate or bromide, and 0.01-20 wt per cent may be used; the complexing agent may be 1-30% of an amine such as aniline, ethylene diamine, hexamethylene diamine, hexamethylene imine, cyclohexylamine or hexylamine, and the nitrile or oxime, in amount 0.05-5%, may be benzonitrile, cinnamonitrile, 1-cyano-4-phenylbuta-1, 3-diene, phenylhepta,-2,-4,6-trienonitrile, 2-pentenenitrile, crotononitrile, cinnamaldoxime, benzaldoxime, or benzalacetone oxime. The bath may also contain 0-30% of an acid compatible with the Cu salt, and an organic solvent such as acetone, methanol or ethanol; a substrate cleaned mechanically or in an acid bath containing an inhibitor, e.g. an unsaturated nitrile and/or oxime, is immersed in the solution for a few seconds to 30 minutes at up to 100‹C; coating may take place in two or more stages with intermediate rinsing, and the Cu coat may be treated with an anti-tarnish agent such as benzotriazole or lacquer.
Patent GB-735645-A (GB)
Title: Improvements relating to aircraft reaction propulsion units and installations
Inventor: PEARSON HARRY
IPC: F02K1/56
Filed: 1952-06-26
Abstract: 735,645. Jet propulsion plant. ROLLSROYCE, Ltd. Sept. 24, 1953 [June 26, 1952], No. 16157/52. Class 110 (3). [Also in Group XXXIII] Part of the wall of the jet pipe 13 is defined by the inner edges of a series of axially-spaced annular or part annular guide vanes 15 of concave section the inner edges being directed upstream relative to the gas flow and the outer edges being directed forwardly with respect to the direction of flight. Compressed air from the engine may be supplied by a pipe 28 to a body 22 with outlets to direct radial air streams towards the guide vanes to induce a gas flow therethrough. The fairing surrounding the vanes is provided with ports 19 which may be opened or closed by a ported sleeve 20 operable by gearing 25, 26.
Patent GB-120422-A (GB)
Title: Improvements in or in connection with Lifting or Hauling Gear.
Inventor: WALKER JOAH HAIGH
IPC: B66C21/00
Filed: 1917-11-06
Abstract: 120,422. Walker, J. H. Nov. 6, 1917. Trollies for runways.-A traveller A for an overhead runway B comprises two wheels a, b mounted in a frame A composed of pivoted links a<1>, b<1>, d, f so arranged that the load carried by the hook c retains the wheel a on the track, and the other wheel is kept on the track by the pull on the hauling rope C or D. Specification 108,188 is referred to.
Patent GB-162956-A (GB)
Title: Improvements in or relating to apparatus for supplying explosive mixture to internalcombustion engines
IPC: F02M21/00
Filed: 1920-06-15
Abstract: 162,956. Jones, A. E., and Gibbons, W. June 15, 1920. Surface carburettors.-A carburettor for use with internal-combustion engines comprises a container 1 formed of a plurality of compartments 2, 3, 4, the compartment 2 serving as a liquid fuel reservoir in communication with the main storage tank, the other compartments acting as trap chambers to prevent any unvaporized fuel from passing from the carburettor to the engine. Air is supplied to the chamber 2 by a pipe 8, and after bubbling through the fuel passes to the engine by way of pipes 11, 12, 13, any unvaporized fuel in the mixture being trapped in the compartments 3. 4. The level of liquid fuel in the chamber 2 may be maintained by any means and a diaphragm 6 is fitted at an angle in this chamber to aid the trap chambers and prevent splashing. In a modification, shown in Fig. 3, the pipes 11. 12 are dispensed with and an additional compartment 22 for containing the main fuel supply is formed integral with the container 1. Air is admitted through an inlet 25, while a secondary air inlet 30 may be fitted on the fuel container 2. The usual relief and back pressure valves are arranged in the induction pipe to the engine to obviate the danger of back-fire.
Patent GB-459238-A (GB)
Title: A method of manufacture of precipitated zinc oxide or other metallic oxides
IPC: C01G9/02
Filed: 1935-06-05
Abstract: In the production of zinc oxide from solutions of zinc sulphate or chloride by precipitation with a base such as ammonia, a voluminous product which is pulverulent on drying and has a low apparent density is obtained by effecting precipitation in a reaction mixture having the concentrations set out in the examples, and by substituting adsorbed SO4 or Cl radicles by radicles such as CO3 or SO3 radicles, capable of ready elimination by heat, either by having such radicles present before precipitation, or by washing the precipitate with a solution containing such radicles.  When zinc sulphate is used, ammonia may be recovered from the ammonium sulphate solution formed by addition of a barium compound such as the hydroxide with production of barium sulphate as a by-product.  The zinc sulphate solution should be given a pH value of 3,5 to 4 by adding sulphuric acid.  According to the first Provisional Specification, the invention is applicable to the manufacture of other metallic oxides and particularly to the precipitation of ferrous sulphate by a base.
Patent GB-1045777-A (GB)
Title: Photographic light-sensitive materials
Inventor: FICKEN GEOFFREY ERNEST
IPC: C09B23/12
Filed: 1964-04-20
Abstract: 1,045,777. Supersensitizing dye combinations. ILFORD Ltd. April 13,1965 [April 20, 1964], No. 16271/64. Heading G2C. A photographic silver halide emulsion contains a sensitizing dye of formula: - where Y and Z are S,Se, -NR 12  or -CH = CH-,R 1  and R 3  are alkyl, carboxyalkyl, carbamoyl alkyl or sulphoalkyl. R 2  is H or alkyl 1-4C, R 5 ,R 6 ,R 9  and R 10  are H, halogen, alkyl, aryl, substituted aryl, alkoxy, alkoxy alkoxy or trifluoromethyl groups, R4 and R8 are hydrogen or together with R 5  and R 9  form part of benzene ring, R 7  and R 11  are hydrogen or together with R 6  and R 10  form part of a benzene ring, R 12  is alkyl, aryl or substituted aryl and n is o or 1 and X is an anion, together with a dye of general formula:- where R 4  - R 11  are as above, R 13  and R 14  are alkyl 1-4C,A is -O-or -NR 17 ,R 16  and R 17  are hydrogen, alkyl, aralkyl or substituted aryl and when n in the first formula is o either U or V must be an oxygen atom, the other is oxygen or sulphur and when n in the first formula is 1, U and V are the same and are oxygen or sulphur. Aryl groups may be substituted by alkyl, alkoxy or halogen.
Patent GB-725230-A (GB)
Title: Improvements in or relating to electrical switching systems, particularly for electrical heaters on railway or like vehicles
IPC: B60L3/00
Filed: 1953-06-12
Abstract: 725,230. Switching systems for heating resistors. BREDA ELETTROMECCANICA E LOCOMOTIVE SOC. PER AZIONI. June 12, 1953 [June 14, 1952], No. 16304/53. Class 38 (4). In an electric vehicle intended for operating on tracks of different voltages and wherein the carriage heating resistors such as R, R<SP>1</SP> (with or without thermostatic control by a device E) are directly energized from the track conductor AT, the resistors are divided into sections r1, r2, r<SP>1</SP>1 R<SP>1</SP>2 which are respectively paralleled to bus-bars S1-S5 running throughout the length of the carriage and a voltage responsive switching system automatically causes such bus-bars to be energized as will result in the appropriate combination of the sections of each resistor to render it suitable for supply by the track voltage obtaining. The switching system comprises contactors C1-C6 having operating coils b1-b6 controlled by relays RL1, RL2 energized in series with the winding Rt of a time delay relay from the conductor AT over a rectifier Vu and resistor Rd. The relays RL1, RL2, which are one less in number than the number of different track voltages, operate, respectively, at the upper limit of each track voltage. The delay relay Rt prevents undesired interconnections by the contactors C1-C6 during transition from one track voltage to another.
Patent GB-337842-A (GB)
Title: Improvements in or relating to retorts for the distillation of coal, shale, peat, and other carbonaceous substances
IPC: C10B1/04
Filed: 1930-03-27
Abstract: 337,842. Topping, T., and Black, J. S. March 27, 1930. Charging and dis - charging.-In vertical retorts in which cross flues communicate with an annular heating flue, gases from the latter pass to an annular flue around the hopper to dry the charge. The flue C surrounding the retort A has a number of baffles E, and communicates by the passage L<2> with the annular flue L<1> surrounding the hopper L. A depending sleeve L<5> prevents descending material obstructing the gases escaping from the retort by port P. An oscillating discharger G is arranged at the lower end of the retort, the discharged coke passing to a hopper H having alternately-operated in - let and outlet valves J, K.
Patent GB-121456-A (GB)
Title: Improved Device for use in Cooking on Gas Stoves and the like.
Inventor: LONG SIDNEY JAMES THOMAS
IPC: F24C15/10
Filed: 1918-10-08
Abstract: 121,456. Long, S. J. T. Dec. 8, 1917. [Convention date]. Heat-distributors. - A device for economizing the heat from a gas ring or the like consists of a plate with downturned sides C and end D, and with two parts A, B arranged at different levels with pot-openings F, G in them. The device is placed over a gas burner &c. so that a utensil over the opening F is directly heated, and the combustion products are conducted by a deflector E towards the opening G, over which another utensil is supported by raised supports H. In a modification, the raised part A is enlarged so as to support two utensils; the space beneath the pot-holes G and above the deflector E is divided into two compartments by a partition, and each part has a damper which may be used to cut off the passage of heat to the corresponding compartment.
Patent GB-1022720-A (GB)
Title: Improvements in expanding coil spring clutches
IPC: F16D13/02
Filed: 1964-04-21
Abstract: 1,022,720. Friction clutches. SIEMENS & HALSKE A.G. April 21, 1964 [April 22, 1963; May 14, 1963], No. 16405/64. Heading F2C. A sleeve 2 fast on an output shaft 3 of a teleprinter is clutched to a surrounding input drum 9, Fig. 2 (not shown), by expanding an outputcarried coil spring 1 into frictional engagement with the drum by a freely-mounted lever 5 which is loaded against one end 4 of the coil spring 1 by a coil or C-spring 6 anchored to the output sleeve 2, the other end 8 of the coil spring 1 being adjustably anchored to the output sleeve 2 by a plate 8a (Fig. 3, not shown). Clutch release is effected by pivoting a stop 7 into the path of the lever 5, to overcome the loading spring 6 and permit the clutch spring 1 to contract. Axial grooves of different pitch are provided in the contacting surfaces of the coil spring 1 and drum 9. In Fig. 5 (not shown), the self-tightening effect of the clutch coil 23 is increased by taking the reaction at the anchored end 29 of the coil through a second lever 25 pivoted at 27 on the output sleeve 22 and connected by a spring 30 to the first actuating lever 24 which pivots at 26 on and is loaded by a spring 31 on the output sleeve 22. When the control stop 32 is retracted, the spring 31 pivots both levers together clockwise but, due to the arrangement of leverages the actuated end 28 of the clutch coil spring 23 advances a greater distance than the anchored end receeds so that the clutch spring is expanded. The reaction of the anchored end on the lever 25 is stated to provide increased self-tightening of the clutch coil. Figs. 6 and 7 (not shown) are a practical embodiment of Fig. 5 using large diameter C- springs for lever loading, and a lever 24 which has a large boss pivoted around and coaxial with a boss on the output sleeve.