baber/WOPTO huggingface dataset:
Patent GB-304920-A (GB)
Title: Improved shock-absorber for motor vehicles
IPC: F16F9/19
Filed: 1928-01-31
Abstract: 304,920. Philpott, W. J., and Knight, J. T. Jan. 31, 1928. Fluid-friction vibrationdampers; pneumatic springs.-In cylinder-andpiston apparatus, a fixed tubular member carried by the end of the cylinder is connected with an aircushioning chamber and enters the hollow piston rod so as to co-operate with, and vary the opening of, the throttling orifices. Fig. 2 shows the cylinder and piston with an overflow reservoir and air space outlet, while Fig. 3 shows an enlarged view of the piston and throttling arrangements. The cylinder may be connected by a ball joint 8 to the axle and the piston by a ball joint 19 to the frame. The piston carries at its lower end a circular one-way valve 23 having a small limited up-and-down movement relative to the piston. The valve seats at 22 on the piston and is provided with small bleed holes 25. Inclined ports 27 connect the upper and lower parts of the cylinder and a tapered plunger 29 carried in the end of the cylinder enters the tubular lower end of the piston rod. When the frame and axle approach one another, the valve 23 lifts and the piston moves downward comparatively freely until its lower end passes over the plunger 29 when the flow of liquid through the ports 27 is retarded and the downward movement cushioned. The upward movement of the piston during the rebound of the springs is checked by the closing of the valve 23 when liquid can only flow slowly through the bleed holes 25. The air space 33 in the upper part of the reservoir compensates for the entry of the piston into the cylinder and gives an additional cushioning effect.
Patent GB-963893-A (GB)
Title: Improvements in or relating to pneumatic tyres
Inventor: FLETCHER HENRY RAYMOND
IPC: B60C15/00
Filed: 1960-01-28
Abstract: 963,893. Pneumatic tyres. DUNLOP RUBBER CO. Ltd. Jan. 26, 1961, No. 3044/60. Heading B7C. A pneumatic tyre bead 1 comprises one or more wire cores 2, 3 around which the carcase ply edges 4a-9a are wrapped, and a filler reinforcement 10 comprising an annular strip of parallel metal or textile cords, or fibrereinforced rubber, wrapped around the axially outermost bead core 3 so that its edges extend radially outwardly of the core 3 beyond the ply edges 8a, 9a associated with the core 3 and are spaced axially outwardly of the outermost ply 9 by a rubber packing strip 11.
Patent GB-209959-A (GB)
Title: Improvements in or relating to steam heated water heaters
IPC: F24D1/00
Filed: 1923-02-02
Abstract: 209,959. Fildes, T. S. Feb. 2, 1923. Heating water. - A steam-heated water-boiler comprises a heating coil g within an annular chamber formed of two shells h, i, the whole being placed within a hollow walled reservoir c to the bottom of which cold water from the cistern d flows through a channel f. Boiling water is led from the top of the inner boiler through a pipe l to a receiver m the outflow from which is controlled by a cock n the plug of which is in axial alignment with the plug of the steam control cock r. Both cocks are operated simultaneously by the handle t.
Patent GB-451224-A (GB)
Title: Hydraulic steering control for vehicles
IPC: B62D3/14
Filed: 1935-01-31
Abstract: 451,224. Hydraulic steering-gear for motor vehicles. SCAIFE, R., 8, Clarence Road, Chorlton-cum-Hardy, Manchester. Jan. 31, 1935, No. 3141. [Class 79 (v)] Relates to steering-gear of the kind comprising a master or pump unit having a piston actuated by the steering hand wheel through screw gearing, and connected by pipes to a secondary or motor unit secured to the front axle and operating the stub-axle arms of the steerable wheels. According to the present invention, the piston a<1>, Fig. 3, of the master unit is mounted on a rod f extending through glands in each end of the cylinder a, the screw gearing couples the steering hand wheel b to the rod, and the rod is prevented from rotation. In the construction shown, the rod f is prevented from rotation by a bar o<1> secured to the rod by a nut o<3> and sliding in a slot ml in a head m secured by bolts n to the cylinder a. The bar o<1> is connected by bolts o<4> to another bar o secured to the rod f by a nut o<2>. The head m carries a plate n<1> forming a radial and thrust bearing for the steering hand wheel b, a nut r screwed on the rod f being fixed to the wheel b, so that rotation of the hand wheel causes axial movement of the rod and piston. Ports l, l<1> in the cylinder a are connected by copper pipes s and flexible pipes s<1> to a motor cylinder c, the piston rod f of which is connected by adjustable links h to the stub-axle steering arms i. The rod f is in two parts screwed together at f<2> so as to clamp the piston f<1> between them. Glands g<1> and lead packing g<2> are provided at each end of the cylinder. The pump and motor units are similar in size and in construction, except that the pump cylinder a has different pipe connections l, l<1>. Filling plugs k, j<3> are provided in the two units. The gear ratio of the steering gear may be changed by changing the nut r and the screwed part of the rod f for other screw parts having a different pitch.
Patent GB-1071305-A (GB)
Title: Polymerization process
IPC: C08F10/00
Filed: 1966-01-24
Abstract: Polyethylene resins having a broad polymodal molecular weight distribution are prepared by a process which comprises passing a first ethylene gas stream at 700 to 2700 atmospheres and 150 DEG  to 260 DEG  C. through a first reaction region, adding thereto a first catalyst effective at 190 DEG  to 245 DEG  C., passing a second ethylene gas stream at 650 to 1200 atmospheres, but at least 70 atmospheres less than the pressure in the first reaction region, and 230 DEG  to 275 DEG  C. through a second reaction region, adding thereto a second catalyst effective at 245 DEG  to 290 DEG  C., removing reaction mixture from the end of said first reaction region and feeding it into said second reaction region at a point intermediate its ends, the reaction product from said first region commingling with the reaction mixture in said second region in a proportion of 3.3 to 20/1 by weight, and removing the resulting composite reaction product and separating the polyethylene therefrom. The first reactor may be divided by partitions into more than one zone. The second reactor may also be divided and the product of the first reactor introduced into the first or "reaction" zone when further polymerization occurs in the presence of said product or into the second or "mixing" zone. Specified first catalysts are methyl ethyl ketone peroxide, t.-butyl hydroperoxide, di-t.-butyl peroxide, t.-butyl perbenzoate and t.-butyl peracetate.  Specified second catalysts are methyl ethyl ketone peroxide, p-menthane hydroperoxide, t.-butyl hydroperoxide and di-t.-butyl peroxide.  Catalysts may be introduced in an inert hydrocarbon diluent, e.g. kerosene, at one or more points in the reactors. Modifiers, e.g. isobutylene, propylene, n-butane and propane, may also be added.  Apparatus suitable for carrying out the process of the invention is described and illustrated and in examples ethylene is polymerized using as catalyst (I, II, IV and V) t.-butyl perbenzoate in the first reactor and di-t.-butyl peroxide in the second, and (III) diisopropyl peroxydicarbonate, t.-butyl perisobutyrate and di-t.-butyl peroxide successively in each reactor.
Patent GB-1322884-A (GB)
Title: Automatically braking flap stay
IPC: E05C17/28
Filed: 1972-01-24
Abstract: 1322884 Stay for hinged members HUWILWERKE HUGO WILLACH & SOHNE 24 Jan 1972 [6 Feb 1971] 3234/72 Heading E2F [Also in Division F2] A braking and stay arrangement for a furniture flap comprises a rod 2 guided in a housing 1, either the rod or the housing being fixed on an article of furniture, the rod 2 or an arm 5 provided on the housing being fixed on the flap and the housing surrounding the rod apart from a slit 3 formed by end parts 4 of the housing which are of wedge-shaped form tapering in the direction of the longitudinal axis, a pin 6 being mounted in the arm and guided in slots 7 of the wedge-shaped end parts and having flanges which, when the pin is moved in the slots, tension or release the end parts 4 by means of pressure plates 9 so that the housing grips or releases the rod depending on whether a push or a pull is exerted on the arm 5.
Patent GB-310568-A (GB)
Title: Improvements in appliances or apparatus for separating dust, grit and the like from air or other gases
IPC: B04C5/02
Filed: 1928-02-02
Abstract: 310,568. Jacobsen, O. B. Feb. 2, 1928. Density separators.-A gas cleanser has a cylindrical part b arranged above the dust collecting conical part c; the cover a over the part b contains the inlet a', and this preferably extends across the full width of the cover. An annular series of vanes e gives the gas a whirling motion on entering the separator, and the cleansed gas leaves by the outlet tube d which is arranged axially with its lower end below the vanes e.
Patent GB-539789-A (GB)
Title: Improvements in or relating to doors
IPC: E06B3/70
Filed: 1940-02-21
Abstract: 539,789. Composite boards for doors. HITCHINS, W. G. Feb. 21, 1940, No. 3287. Drawings to Specification. [Class 145 (ii)] A composite board constituting a flush type door consists of a wood frame which is glued and placed over one of the facing boards, spacing pieces consisting of cylindrical or other shaped elements made by bending round a piece of veneer or three-ply with its grain at rightangles to the facing board and securing the ends together (so that spacing pieces are on edge) and superimposing the other facing board. Specification 538,306 is referred to.
Patent GB-547075-A (GB)
Title: Television projection system
IPC: H04N5/74
Filed: 1941-03-11
Abstract: 547,075. Cathode-ray tubes with light modulating screens for television. FARNSWORTH TELEVISION & RADIO CORPORATION. March 11, 1941, No. 3318. Convention date, Sept. 7, 1940. [Classes 39 (i) and 40 (iii] A cathode-ray tube for modulating light for producing an image comprises a thin layer 18 of paraffin or other wax capable of being rendered locally transparent in dependence on the heat produced by local electron bombardment, and an optical system is adapted to project the light from a source 1 through a layer 18 and to reflect it back again through the same layer. The reflection is performed by a silver mirror 17 on which the electron beam is focused and scanned, this mirror being connected to the anode 8 to receive the same voltage. The light from the source 1 passes through a lens 2 which focuses the reflected light into an aperture containing lenses 27, which focuses the layer 18 on a viewing screen 29, a prism 28 being provided to deflect the light to the viewing screen. In a modification, the lenses 27 and prism 28 are disposed between the lens 2 and the cathode-ray tube ; and in another modification, the incident beam on the layer 18 is oblique and this layer is viewed directly, the optical system focusing the light source in the observer's eye.
Patent GB-201133-A (GB)
Title: Improvements in or relating to the firing gear of submarine mines
IPC: F42C3/00
Filed: 1923-02-05
Abstract: 201,133. Vickers, Ltd., (Assignees of Elia, G. E.). July 19, 1922, [Convention date]. Rope grips.-A weight e at the end of a line k adapted to slide along the mooring rope a of a submarina mine is prevented from moving back by wedge shaped sliding grippers h.
Patent GB-1455545-A (GB)
Title: Gas turbine exhaust system expansion joint
IPC: F16L59/18
Filed: 1975-01-27
Abstract: 1455545 Pipe couplings; insulating pipes WESTINGHOUSE ELECTRIC CORP 27 Jan 1975 [6 Feb 1974] 3513/75 Headings F2G and F2P An expansion joint for a gas turbine exhaust system comprises a flexible insulating member 24 formed of layers of fibreglass together with layers of alloy reinforced asbestos; the member being fixed by circumferential clamping members 26 at its opposite ends to an exhaust duct 12 and stack 14, which it surrounds to provide a flexible sealing coupling therebetween. Preferably the flexible member is formed as a cylindrical band having two radially outermost layers of fibrous nickel-copper alloy reinforced asbestos; three radially innermost layers of an indentical material; and two intermediate layers 36 of a woven fibre-glass cloth which sandwich a central core 34 of matted glass fibres insulation. In the preferred clamping arrangement an inner liner 18 fixed to the exhaust duct is received into, and spaced radially from, an outer liner 20 secured to the exhaust stack 14; the outer liner and a member 22 providing support for the clamping action of segmented clamping rings 26. The flexible member may be formed as a continuous loop or as a strip wrapped about the joint periphery which may be circular, or polygonal, e.g. square.
Patent GB-678952-A (GB)
Title: Apparatus and process for treating and finishing materials
IPC: D06P1/22
Filed: 1950-02-10
Abstract: <PICT:0678952/IV (c)/1> An apparatus for treating and finishing in a liquid bath, for example, boiling, sizing, bleaching, dyeing, washing, neutralizing and impregnating natural or artificial fibres, especially textile fibres in the state of flock combed, carded, drawn, woven or felted, in which the fibrous material is introduced together with the treating liquid into apparatus 1 which can be closed and which forms part of a completely closed circulating system operating under a static pressure, is characterized in that use is made of an expansion vessel 11, connected to the suction pipe of a pump in the circulating system, this vessel acting as an air chamber. The apparatus consists of a vessel 1, a circulating pump 3 and a tap 4 with four outlets.  The tap 4 is connected to the apparatus 1 by conduits 5 and 6.  Between the cock 4 and the pump 3 there is, at one side, placed the suction conduit 7 and, at the other side, the compression conduit 8 adjacent to a heat exchanger 2.
Patent GB-1496314-A (GB)
Title: Elevating roof
IPC: B60J7/16
Filed: 1976-01-29
Abstract: 1496314 Convertible vehicles C I AUTOHOMES Ltd 29 Jan 1976 03576/76 Addition to 1385118 Heading B7B In an elevating vehicle roof assembly as described and claimed in the parent Specification two opposite side walls 15, 16 are of one piece construction and are foldable between raised and collapsed positions. In a preferred embodiment the one piece walls 15, 16 are hinged along their bottom edges to a fixed roof member or plinth 11, but alternatively they may be hinged along their upper edges to the roof panel 10. Telescopic tube assemblies (27, 28), Fig. 1 (not shown) contain springs which give the roof assembly an initial upward push after release of hold-down catches 35, and compressed gas inside the tubes then lifts the roof to the fully elevated position. The roof panel 10 is provided with a peripheral valence 9 the lower edge of which has a resilient sealing strip 40 for engagement with the fixed roof member 11. A roof light (42) is located in the roof panel 10. The plinth 11 is of composite aluminium and timber construction and the walls and roof panel 10 have an outer skin of aluminium, an inner panel of fibreboard, and an intermediate layer of heat insulating expanded polystyrene.
Patent GB-509331-A (GB)
Title: Improvements in and relating to electric fuses
IPC: H01H85/42
Filed: 1938-02-04
Abstract: 509,331. Fusible cut-outs. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 4, 1938, Nos. 3584 and 3585. Convention dates, Feb. 4, 1937, and Feb. 10, 1937. [Class 38 (i)] [Also in Group XXXVII] High-tension D.C. or A.C. circuits are protected by two fusible cut-outs in series in the same cartridge. One deals with overloads and is of the type in which the fuse wire is heatinsulatingly mounted and has a cover releasable by vapour pressure and the other deals with short-circuits and is of the type in which the fusible conductor is embedded in granular material of good thermal conductivity. Both fuses may be provided with a single casing, as shown in Fig. 1. The cap 4, which is blown off when the overload fuse 1. blows may be replaced by a silencer. To avoid excessive length of the combined cut-out, the fusible member of the overload part may be in a tortuous channel which may be provided at intervals along its length with stoppers which are blown out by excessive pressure, Fig. 2 (not shown). In modified arrangements, Figs. 3 and 4, the channel is helical and has one side formed by a strip 10, 12 designed to be blown off in the case of a short-circuit.
Patent GB-470169-A (GB)
Title: Improvements in or relating to the manufacture of chocolate
IPC: A23G1/14
Filed: 1937-02-06
Abstract: 470,169. Mixing-apparatus. STEVENS, A. H. (Rockwood & Co.) Feb. 6, 1937, No. 3612. [Class 86] Conches or mixing-apparatus consist of one or more troughs across which a number of conching tools reciprocate, the chocolate being fed at one end and discharged continuously from the other. The troughs 10, Fig. 1, are fitted with rollers 11 which are mounted in stirrups 36 and reciprocated from a longitudinal shaft 46. The troughs comprise granite floors 16, Figs. 7 and 8, which are grooved to mate with grooved rollers 11 ; the material is fed from a hopper 29 and discharges over a weir 28<1> which may be adjustable. Scrapers 56, actuated by chains 51, are moved to and fro to clear the curved ends of the troughs. The troughs may be arranged in banks, the material passing from the upper trough to the lower. Hot air may be supplied into the space above the troughs and the troughs themselves may be heated by steam pipes.
Patent GB-560450-A (GB)
Title: Improvements in or relating to classifying system for pulverized materials
IPC: B07B7/086
Filed: 1942-03-18
Abstract: 560,450. Centrifugal separators. STEVENS, A. H. (Hardinge Co. Inc.). March 18, 1942, No. 3628. [Class 23] Materials from a grinding mill are entrained in a stream of air passing up a vertical pipe 4 into a cyclone with a central horizontal outlet 34. The in-going stream passes round an arcuate wall 33 which defines an inner whirling chamber. The wall of the cyclone includes a hinged portion 29, which may be perforated, which can be moved between positions 29A and 29B. A flap valve 28 can be moved into the up-going stream and then causes a part of the stream to enter the cyclone through the valve port and oppose the main stream within the cyclone. The valve can also be moved to the position 28B and then permits some of the stream that has passed round within the cyclone to enter the main stream for a further passage. The large separated particles fall through a cone 31 and a counter stream of pure air may be supplied through a pipe 21 to the annular space outside the cone, or a portion of the entraining stream may be supplied through a passage 21<1>. Pure air may also be supplied to the up-going stream through a pipe 20. Specifications 257,568 and 263,820, [both in Class 23], are referred to.
Patent GB-1292445-A (GB)
Title: Improvements in or relating to rotational drive devices
Inventor: HODGE PETER CHARLES
IPC: F04C15/00
Filed: 1969-01-23
Abstract: 1292445 Power assisted steering SIMMS GROUP RESEARCH & DEVELOPMENT Ltd 8 Jan 1970 [23 Jan 1969] 3753/69 Heading B7H A power steering system includes a shaft 2 connected to a steering-wheel (not shown) and a shaft 3 connected to steering gear (not shown), the shafts 2 and 3 being connected by a torsion bar 4. An internally splined sleeve 7 is axially slidable on complementary splines on the shafts 2 and 3, the splines on shaft 2 being circumferentially narrower to permit limited rotational movement between the shafts 2 and 3. A slot 10 in the sleeve 7 engages a pin 11 threaded in shaft 2. Thereby, relative rotation of shafts 2 and 3 produces axial movement of the sleeve 7 which through a fork 13 axially adjusts a spring-urged valve 14 to control the flow of fluid supplied through an inlet 19 to a gear motor 22, 23 which applies torque to the shaft 3 to assist the movement of the steering gear. The degree of assistance afforded throughout the relative movement of the shafts 2, 3 may be varied by varying the shape of slot 10.
Patent GB-1047832-A (GB)
Title: An improvement in or relating to the marking of metal articles
Inventor: GODBEHERE ALBERT EDWARD
IPC: C25D17/14
Filed: 1965-01-28
Abstract: <PICT:1047832/C6-C7/1> An electrolytic marking device consists of a flexible plate member 16 bearing the mark thereon, at the back of which is mounted a resilient backing 18, whereby in use the flexible plate conforms to the curved surface of the body to be marked.  The resilient material 18 may be rubber, and the metal plate 16 is joined electrically to the metal body 20 by soldered tabs 22.  In an apparatus (not shown) a strip of absorbent material passes through a bath of electrolyte and is then fed between the marking device mounted above the strip and the article to be marked which is supported on a metal anode base acting as an anvil. In an alternative construction to Fig. 2, a series of small blocks each bearing a letter are clamped within a casing, the blocks being supported by a sheet of rubber.
Patent GB-1002021-A (GB)
Title: Improvements in or relating to liquid level detectors
IPC: G01F23/68
Filed: 1962-02-01
Abstract: 1,002,021. Liquid level indicators. J. FAIRHURST. Jan.29, 1963 [Feb. 1, 1962; Aug. 22, 1962], Nos. 3838/62 and 32196/62. Heading G1H. In a liquid level inducting device an annular float 5 surrounding a scaled tube 1 carries a magnet 6 which moves a ferromagnetic weight 7 within the tube 1 to tighten or slacken a thin metal tape 8 attached to the weight 7 or to a non-ferrous weight resting on the weight 7, Fig. 4 (not shown), the alteration in the tension of which tape 8 operates an arm 15 to actuate a two way switch 14 to energize a motor 12 or 13 to rotate a drum 11 through a shaft 16 and worm and pinion 17, 18 to rotate a pointer 20. When a reading is to be taken a switch is actuated to energize the weight lowering motor 12 to lower the weight 7 into the region of the magnet 6. When the switch is released the raising motor 13 is energized until an upper limit switch 23 breaks the circuit. The switch 23 is actuated by an arm 24 which rides on the tape 8 on a drum 11 and so detects when the weight 7 is fully raised to a pre-determined upper limit. In an alternative arrangement, Fig. 5 (not shown) a single reversible motor is used. In a further arrangement, Fig. 7 (not shown), a pneumatic motor is used.
Patent GB-280075-A (GB)
Title: Improved pair of scissors
IPC: B26B13/06
Filed: 1927-02-11
Abstract: 280,075. Beckmann, G. Feb. 11, 1927. Scissors.-The plane of the cutting portion of each blade a in front of the pivot is inclined with respect to the plane of the abutting face d behind the rivet, the cutting edge being common to both planes.