baber/WOPTO huggingface dataset:
Patent GB-1207264-A (GB)
Title: Brake systems
IPC: B60T8/22
Filed: 1968-02-07
Abstract: 1,207,264. Vehicle braking systems; valves. WESTINGHOUSE BREMSEN UND APPARATEBAU G.m.b.H. 7 Feb., 1968 [16 Feb., 1967], No. 6107/68. Headings F2F and F2V. In a vehicle fluid-pressure braking system the braking force is transmitted unchanged to the wheels of an axle other than the front axle, but the force to the front wheels is reduced by a regulator whose output/input ratio is less than unity for lower degrees of braking and greater than unity for higher degrees of braking. In the case of a multi-axle vehicle, e.g. a tractor/ trailer, the braking force is preferably unchanged to all the wheels other than the front wheels. Fig. 1 shows a suitable regulator for a compressed-air system. When the brake valve (not shown) is operated, compressed air enters via 2 into a chamber 6 and thence (a) through valve 17 and hole 14 into a chamber 13 and (b) through pipe 18 into chamber 19. The regulating element comprises a piston 7 carrying a diaphragm 8 abutting radial ribs 9 on the piston 7. The increase in pressure in chamber 13 forces the piston upwards until the diaphragm 8 touches the lower sloping surfaces of radial ribs 11 on the housing 3, these ribs being interleaved with the ribs 9 on the piston (Fig. 2, not shown). The valve 17 is now closed by the piston 7 abutting a valve member 15, and air can no longer flow from chamber 6 to chamber 13. The pressure in the latter is less than that in chamber 6 since the lower surface of the diaphragm 8 is of greater area than the upper surface of the piston. Each increase in inlet pressure opens the valve 17 for a short time until the given ratio of pressures in chambers 13 and 6 has been restored. At a higher level of inlet pressure a piston 20 is raised against a spring 21 by the pressure in chamber 19. The top of piston 20 raises the valve seat 15 so that the equilibrium position of piston 7 is higher. Increase of input pressure thus forces more and more of the diaphragm 8 against the ribs 11 and changes the ratio of pressures in chambers 6 and 13. Eventually the effective areas of both sides of the piston become equal and the pressure transmitted to the brakes via outlet 4 becomes equal to the input pressure. The spring 21 is located in a chamber 25 which is connected to the atmosphere via a release aperture 27 fitted with a cover 26. The chamber 28 above the diaphragm 8 is connected to the atmosphere via a filter 29. The maximum pressure may be limited by an adjustable stop which prevents the valve seat from rising beyond a predetermined position (Fig. 4, not shown).
Patent GB-956755-A (GB)
Title: Improvements in or relating to punching devices
IPC: G06M3/06
Filed: 1963-02-15
Abstract: 956,755. Selective punching. SIEMENS & HALSKE A.G. Feb. 15, 1963 [May 15, 1962], No. 6156/63. Heading B4B. [Also in Division B6] A punching device 11, Fig. 1, for recording signals in coded form comprises manually operable counter rollers 1, 2, 3 mounted on coaxial shafts 5, 6, 7 which also carry discs 8, 9, 10 provided with projections and recesses which co-operate with punch needles 15 to punch a card inserted in a slot of the punching device when the latter is swung about an axis 14 and pressed against the discs 8 &c. by means of a crank 12 and eccentric 13. After the punching operation, the needles 15 are withdrawn by a stripper bar 17. In a modification, Fig. 2, a fluiddriven counter Z drives through gearing counter rollers 22, 24, 26 meshing with toothed wheels 27, 28, 29 mounted on coaxial shafts 30, 31, 32 which carry discs 33, 34, 35 provided with projections and recesses which co-operate with punch needles 44 to punch a card 36 inserted in the slot of a punching device 37 when the latter is swung about a shaft 43 and pressed against the discs 33 &c. by means of a crank 38 which rotates an eccentric 40 mounted on a shaft 39. In other modifications, means are provided for printing a voucher simultaneously with punching of the card.
Patent GB-1479876-A (GB)
Title: Self-loading elevating scrapers
IPC: F16G1/28
Filed: 1976-02-18
Abstract: 1479876 Endless conveyers GENERAL MOTORS CORP 18 Feb 1976 [17 March 1975] 6342/76 Heading B8A [Also in Division E1] An elevator, which is located in the mouth of an earth-moving, bowl type scraper to move scraped up earth away from the scraper edge of the mouth of the bowl into the bowl, is formed by a frame 40, a pair of driven sprocket wheels 54 rotatably supported at the lower end of the frame, a pair of endless flexible belt 72 entrained about each set of driven and idler sprocket wheels with each of the said belts having secured on its inner surface equally spaced teeth 122 for co-operating with the tooth members 130 of the sprocket wheels, flight members for engaging and moving earth away from the scraper edge and mounting assemblies 76 connecting the flight members to the belts so that the flight members lie above the outer surfaces of the belts at regular intervals therealong. Each mounting assembly comprises support means rigidly coupled to an associated end of a flight member and means for making a pair of pivotal connections 100, 116 with the associated belt, of which connections 100, 116, the one 116 is located to lie adjacent to the outer surface of the belt whilst the other 100 is located to be adjacent to the inner surface of the belt for connecting the support means to a pair of adjacent teeth 122 of the belt so as to allow the centres of adjacient teeth 122 to move closer together as the belt moves round the associated idler and drive sprocket wheels. The belts may be constructed as disclosed in the referred to U.S.A. Specification 3,091,837. Each support means may comprise a pair of plates 86 located on opposite sides of the belt to extend above and below the belt. The pivotal connection 100 of each mounting member 86 preferably comprises a trunnion projected laterally of the mounting member 86 and entering into a roller bearing housed in a bore in a tooth 122, which is bolted to the inner surface of the belt. The other pivotal connection 116 comprises a flexible strap secured to the member 86 and the bell and projecting outwards of the belt.
Patent GB-308067-A (GB)
Title: Improvements relating to flexible couplings
IPC: F16D3/78
Filed: 1928-02-29
Abstract: 308,067. Hillman, Ltd., J. & A., and Macbeth, C. Feb. 29, 1928. Flexible couplings. - The fabric, rubber, leather, &c. disc a of a flexible shaft coupling is provided with lateral reinforcements d between the spider-bolt holes, in order to minimize buckling under compression. Rounded radial reinforcements d of rubber &c. may be attached to both sides of a laminated rubber and fabric disc a the bolt-holes having steel &c. bushes band metal stiffening-plates c with rounded edges to avoid chafing of the reinforcements. The reinforcements may alternatively be placed adjacent to the outer or inner periphery of the disc, or both, and may be wholly on one side or alternately on opposite sides.
Patent GB-660388-A (GB)
Title: An improved process for the extraction of elements from fusible materials containingthe same
IPC: C22B4/00
Filed: 1949-03-08
Abstract: Metal vapours obtained from their molten oxygenated compounds (see Group II) are reacted with bromine, chlorine or nascent hydrogen to form pure compounds.  The metals may be arsenic, antimony, beryllium, cadmium, thorium and uranium.
Patent GB-469649-A (GB)
Title: Improvements in machines for bending steel and like bars, rods and the like
IPC: B21D7/022
Filed: 1937-03-05
Abstract: 469,649. Angular bending. CALLEBAUT, L. E. March 5, 1937, No. 6590. [Class 83 (iv)] In a bending-machine with rotary table 20 carrying a former and a stop, not shown, means is provided for stopping the table after a predetermined rotation. The table is driven from gears 28 through a clutch 44. The edge of the table is provided with holes 47 into which are inserted pins engaging, at the limit of travel, a lever 31 connected to a clutch operating shaft 43. The lever 31 is axially adjustable and has a tapered end to allow of compensation for the diameter of the pins. The pins are adjusted according to the desired angle of bend and stop the machine by contacting the lever 31. The machine may be controlled from a pedal 45.
Patent GB-537161-A (GB)
Title: Chain-stitch sewing machine
IPC: D05B1/06
Filed: 1940-04-12
Abstract: 537,161. Sewing-machines. SINGER MANUFACTURING CO. April 12, 1940, No. 6637. Convention date, April 15, 1939. [Class 112] A double-loop stitch looper 140 oscillating in the plane of the work feed and a laterally moving loop-spreader 160 co-operate with an under feed dog 127 and an upper feed provided by a laterally-vibrating needle-bar 64 and a feed foot 80. These parts are described in the abridgment of Specifications 536,792 and 539,249, The needle-thread control comprises a thread-tension 202, which is released when the presser is raised, a thread nipper 204 of which the discs 210 are separated by a cam on the top shaft, a take-up arm 205 fixed to the top of the needle bar, a thread pull-off 231 and a thread-controller 206. The eye 232 of the pull-off is, normally stationary but its position can be adjusted and secured by a screw 233. The thread controller comprises a U-shaped part 226, having a thread eye in each arm and secured upon an arm 223 fixed upon the needle-bar, and an arm 228 fixed upon the pitman 68 which drives the needle-bar. With the relative movement of the parts 226, 228, a shoulder 230' on the arm 228 effects secondary take-up actions.
Patent GB-706234-A (GB)
Title: Improvements in or relating to directional couplers for electromagnetic wave transmission systems
IPC: H01P5/18
Filed: 1952-03-14
Abstract: 706,234. Directional couplers for wave-guides. WESTERN ELECTRIC CO., Inc. March 14, 1952 [March 17, 1951; April 5, 1951], No. 6665/52. Class 40 (8) The coupling between the main wave guide 10, Fig. 1, and adjacent auxiliary waveguide B of a directional coupling apparatus, is in the form of an aperture 18 divided into a plurality of smaller spaces 19 by a plurality of dividers or wires 20. Aperture 18 is formed in an insert 17 which is placed in slot 16 in the adjacent walls 14 and 24 of wave guides 10 and 13 respectively. Various directional bandpass characteristics are obtained by either (i) varying the shape of the divided aperture 18, these shapes being limited to those simple geometric shapes for which the Fourier transforms utilized in obtaining their respective directivity characteristics are functions of a single angular variable and can be readily derived, e.g. rectangles, isosceles triangles, areas under co-sine or exponential curves, or various composites of these ; or (ii) varying the number of dividers or wires 20, per unit length. Control of the power coupling ratio without affecting the directivity characteristic is achieved by varying the size of the aperture 18 or by varying the total number of spaces 19. A modification is described having a multiplicity of closely spaced holes 19, Fig. 19, distributed longitudinally and transversely throughout the area of the divided aperture 18.
Patent GB-127238-A (GB)
Title: Improved Machine for Calibrating the Studs of Press Buttons.
IPC: B21D53/48
Filed: 1919-03-18
Abstract: 127,238. Usines Bolide Soc. Anon., (Assignees of Feutz, A., and Blumenstein, E.). May 18, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Fastenings. - The studs of press-buttons are rolled to standard dimensions after being formed by stamping, the machine preferably being fitted with means for feeding the studs automatically to the rolling- members. As shown, the stamped buttons m are fed from a magazine k which is held by clips k<2> in contact with a disk supported by the frame e of the machine, which is slightly inclined to the vertical so as to cause the buttons to rest against the disk. Two rotary arms on a shaft o continuously agitate the buttons, and a guide k<3> directs buttons to a guide-strip f in such a manner that the heads are guided down this strip as indicated in Fig. 4, and are held by a cam-operated finger h, guided by links, which releases the buttons successively, allowing them to be directed by a bent portion of the guide f between a knurled adjustably-mounted wheel a, driven by bevel-gearing, and a fixed sector d eccentrically situated with respect to the knurled wheel. The heads of the buttons, as they emerge from between the wheel a and sector d, are of uniform size.
Patent GB-1244585-A (GB)
Title: Microwave apparatus for determining a characteristic of a sample
IPC: G01N22/04
Filed: 1970-02-12
Abstract: 1, 244, 585. Measuring moisture content. CANADIAN PATENTS & DEVELOPMENT Ltd. Feb. 12, 1970 [Feb. 13, 1969], No. 6772/70. Heading G1N. The moisture content of a paper web 20 is measured by passing the web through longitudinal slots 2 in a waveguide and measuring the attenuation or phase shift of microwaves in the waveguide with a plurality of detectors 11 to 19. The difference between or ratio of the outputs of adjacent detectors is displayed on an oscilloscope 31 using cyclic switching synchronized with the oscilloscope time base Fig. 2 (not shown).
Patent GB-138583-A (GB)
Title: Improvements in or relating to methods and apparatus for preventing the propagation of compressional waves in liquids
IPC: G10K11/16
Filed: 1919-03-18
Abstract: 138,583. Fessenden, R. A. Feb. 1, 1919, [Convention date]. Protecting; resistance to propulsion, reducing.- A layer or stream of air bubbles external to a strip is used as a screen against compressional waves in fluids, and is described as of use for screening the ship from explosion waves such as those due. to a torpedo or depth bomb. The bubbles are also stated to reduce skin-friction. Fig. 1 shows the bubbles escaping through jets from a supply-pipe 34 connected with a compressed-air main 32. The bubbles are shown as escaping between segmental plates 31, which follow approximately the streamlines of the ship for reducing skin-friction.
Patent GB-801634-A (GB)
Title: An improved press
IPC: B30B9/08
Filed: 1956-03-05
Abstract: 801,634. Fruit presses. CONSTRUCTIONS MECA - METALLIQUES CHALONNAISES. March 5, 1956 [March 16, 1955; Feb. 20, 1956], No. 6800/56. Class 14 (2). A press for grapes, apples, pears, &c. comprising a rotary horizontal screen with two transverse plates 23 which slide longitudinally within the screen under the control of two oppositely threaded parts 5a and 5b of a fixed axial screw 5, is provided with an hydraulic core of constant volume, but deformable, constituted by a chamber having a fluid-tight wall of annular cross-section and filled with liquid. The chamber is formed by a tubular elastic sleeve 28 which is combined with and supported by two end pieces 27, of e.g. rubber, that clamp over the threaded parts of the screw to form fluid-tight nuts. Parts 25 and 27 are connected so that upon rotating the screen by means of a motor geared to the screen rim 12, the plates 23 converge, the sleeve 28 assumes the shape of a double truncated cone, and the fruit contained between plates and sleeve is compressed towards, thereby expressing juice between, the longitudinal slats 13 that constitute the outside of the screen. In a modification, now shown, automatic means for controlling the pressure exerted on the fuit comprises an axial chamber within the screw 5, one end of which connects with the chamber formed by the sleeve 28 while the other end connects with a diaphragm which, depending upon the pressure exerted within the sleeve 28, makes and breaks a connection in the supply circuit for the motor.
Patent GB-323961-A (GB)
Title: Improvements relating to coal breaking machines
IPC: B02C1/12
Filed: 1929-03-02
Abstract: 323,961. Barker, W. H. March 2, 1929. Reciprocating picks.-In a machine wherein coal is carried on a continuously-moving conveyer i and is broken by reciprocating picks a, the picks are mounted on an obliquely-arranged oscillating arm or arms so as to receive a horizontal component of movement in the same direction, and at approximately the same speed, as the conveyer while acting on the coal. As shown, the picks a are carried by bars b pivotally supported by links f from oblique parallel links e pivoted to the machine frame. The picks are reciprocated by a connecting rod g from a rotary crank h. Specifications 2736/15 and 283,835 are referred to.
Patent GB-1418851-A (GB)
Title: Coupling arrangement for multiplexing and demultiplexing  purposes
IPC: H03H7/46
Filed: 1974-02-14
Abstract: 1418851 Filters, signal separation; multiplex systems THOMSON-CSF 14 Feb 1974 [16 Feb 1973] 6874/74 Headings H3V and H4L A multiplexer-demultiplexer coupling arrangement, Fig. 3, comprises a first port S which is coupled to three or more further ports A-D, each corresponding to a respective frequency band, and networks 10, 20, 30 each comprising the circuitry shown in Fig. 2. Thus each network comprises two four-port hybrid transformers T 1 , T 2  interconnected by two complementary filters F 1 , F 2  Ports 111, 112 of transformer T 1  are conjugate, as are ports 121, 122 of transformer T 2 . When inputs at ports A-D are being multiplexed to port S, inputs are applied on a coaxial cable 133 and a twin-wire line 144 of each network and an output appears on a respective coaxial cable 143. Cables 133, 143 are respectively connected to ports 113, 123 of T 1 , T 2  and line 144 is connected across port 124, 125 of T 2 , the remaining port 114, 115 of T 1  being terminated by a dissipative resistor 134. The transformer-filter arrangement is similar to that disclosed in Specification 1,370,511 except that F 1 , F 2  are preferably low-pass filters. They may however be bandpass filters and may be symmetrical or non- symmetrical and dissipative or non-dissipative. In addition the windings of the transformers may be consituted by the conductors of a coaxial cable wound on a magnetic circuit. During multiplexing operation a signal applied at A within the pass-band of the filters F 1 , F 2  of network 10 is substantially fully transmitted to output port 12 and a signal applied at B, outside the pass-band of the said filters, is substantially fully reflected to port 12. The signals, both of which lie within the pass-band of the filters in network 30, are then transmitted through this network to port S. In a similar fashion signals from all the "further" ports are multiplexed to port S. The pyramidal arrangement of Fig. 3 may be extended to include further networks. The networks 10-30 may alternatively be connected in cascade (Fig. 4, not shown). The invention permits the addition of further transmission channels to a multiplexer-demultiplexer without the necessity of modifying the existing channels by the addition thereto of band-stop filters.
Patent GB-725585-A (GB)
Title: Improvements in and relating to fuel injection systems in internal combustion engines
IPC: F02M49/02
Filed: 1953-03-12
Abstract: 725,585. Fuel injection systems ; alarms. AKTIESELSKABET BURMEISTER & WAIN'S MASKIN-& SKIBSBYGGERI. March 12, 1953 [June 23, 1952], No. 6896/53. Classes 7 (2) and 7 (3). [Also in Group XXVIII] A fuel-injection system comprises a separate injection pump 1 for each engine cylinder actuated by the pressure in its associated engine cylinder and connected to two or more fuel pressure operated injection valves 19, 20 in the cylinder, at least one of which opens at a pump delivery pressure produced by an engine cylinder pressure lower than the lowest compression pressure at top dead centre obtaining under the most unfavourable operating conditions, e.g. when the engine is rotating slowly as at starting, while the remaining valve or valves open at fuel pressures produced by engine cylinder pressures located between the abovementioned lowest compression pressure and the compression pressure at top dead centre obtaining under normal running conditions. The pump plunger 1 is actuated by a spring- loaded piston 3 subject to engine cylinder pressure through a port 5 and is rotatable by a lever 58 and provided with helical control edges 57, 53 controlling the outlet and release ports 13, 54 respectively. The fuel is fed to the intake port 12 from a tank 9 by a supply pump 8 and the fuel released when the port 54 is opened is delivered back to the tank 9 through a pipe 56. The pump delivery pipe 15 is connected by branches 17, 18 to the injectors 19, 20 which include spring-loaded valves 25, 26 set to open at different pressures, and a third branch 21 from the pipe 15 leads to an overflow device 41 containing a spring-loaded valve 42 which is lifted by an excessive fuel delivery pressure to allow fuel to escape through a pipe 50 to the tank 9 and relieve the pressure in the pipes 17, 18. The valve 42 is preferably arranged to close at a much lower pressure than its opening pressure, e.g. it may open at a fuel pressure produced by an engine cylinder pressure of 52 kg. per square cm. and close at a cylinder pressure of 18 kg. per square cm. The valves 19, 20 however, are arranged with only a small difference between the opening and closing pressure, e.g. valve 20 may open and close at cylinder pressures of 25 and 20 kg. per square cm. respectively and the valve 19 may open and close at 32 and 25 kg. per square cm. A sight glass chamber 66 may be provided in the overflow pipe 50 to indicate faulty operation of the engine.
Patent GB-1092122-A (GB)
Title: Thermocouple junction
IPC: H01R4/10
Filed: 1965-02-17
Abstract: A thermocouple junction is made by tightly compressing a sintered powdered metal sleeve about a pair of dissimilar wires. The sleeve may be coated with gold, a rare metal or a resin, or with aluminium which is oxidized in situ.  With an iron-constantan thermocouple the sleeve may be compacted under high-pressure from 50% powdered iron, 27 1/2 % copper, and 22 1/2 % nickel into a green form which is then sintered.  Noble metals may be added to replace the nickel or copper. The completed sleeve is slipped over the thermocouple wire and compressed about them.
Patent GB-591364-A (GB)
Title: Improvements in and relating to sawing-off machines
IPC: B24B27/00
Filed: 1945-03-20
Abstract: 591,364. Sawing - machines. MORSTATT, R. A., and HAUT, F. J. G. March 20, 1945, No. 6982. [Class 145 (ii)] In a machine for sawing off bar or tube material 7 in which a circular saw 1, an electric motor 2 with reduction gear and a clamping device 4 are arranged in a portable unit adapted to operate on the material in situ, the clamping device 4 is adapted to be stationarily fixed on the material and the saw 1 and its driving means are adapted to be moved across the material to cut it. As shown, the clamping device comprises a chain 6 attached to a slide 4<1> and passing over a sprocket 8, which may be rotated by a handle 10 through an irreversible wormgear 9. The slide 4<1> is movable along a frame 5 supporting the motor 2 and saw 1 by means of a star wheel 12 and a threaded spindle 11 to feed the saw through the work. The machine may be suspended from a trolley running on a rail at right angles to the axes of the bar material.
Patent GB-399530-A (GB)
Title: Improvements in or relating to swivel-couplings
IPC: F16G15/08
Filed: 1932-03-08
Abstract: 399,530. Swivels. HEALE, H. T., 35, Craven Hill Gardens, Bayswater, and FINNES, D., 76, Boundary Road, Plaistow, both in London. March 8, 1932, No. 6984. [Class 24.] In swivels of the kind comprising two link or other members 10 provided with abutting end walls 11 mounted rotatably on a pin 12, antifriction bearings 14, e.g. ball bearings, are interposed between the walls 11 and abutments on the pin. One at least of these abutments is in the form of a nut 16 so that the links can be uncoupled by sliding on the pin.