baber/WOPTO huggingface dataset:
Patent GB-155870-A (GB)
Title: Improvements in and connected with shoes for horses and other animals
IPC: A01L1/04
Filed: 1919-08-02
Abstract: 155,870. Knight, A. W. Aug. 2, 1919. Renewable calks. -Shoes for animals, with renewable wearing-surfaces, of the kind provided w i t h grooves running from end to end in their outer surfaces designed to receive metal wearing-strips of a depth equal to or greater than the depth of the grooves, have both sides of the groove or grooves inclined towards the outside of the shoe, and the wearing-strips are provided with inclined or recessed sides so that the walls of the grooves may be hammered over to fix the strips in position. The shoe a is made from bar metal having rectangular grooves b, c and also a V-groove d, the metal strips being provided with inclined or recessed sides as shown in Fig. 9. In securing the strips, the V-groove allows the walls of the other grooves to be punched into the recess formed in the wearing-strips. In a hind shoe, the strips i are formed staple-shaped as shown in Fig. 12. In practice, one lower corner of the wearing strip is rounded to facilitate insertion, and one end is cut away to receive a " tommy " when renewing the strip. In frosty weather, the road-contacting surface of the strip may be sharpened.
Patent GB-499941-A (GB)
Title: Improvements relating to crank shaft mechanism for bicycles
IPC: B62M3/00
Filed: 1938-06-29
Abstract: 499,941. Crank shafts. RADNALL, E. A. June 29, 1938, No. 19231. [Class 80 (ii)] Bicycle crank-shafts in which the cranks and sprocket wheel have non-circular holes engaging the similarly - shaped ends 12 of the shaft, are formed, after the cranks and sprocket are in position, with a head 19 to keep the parts in place. Specification 356,497 is referred to.
Patent GB-904145-A (GB)
Title: Improvements in or relating to automatic couplings for railway vehicles
Inventor: DADSWELL CYRIL JOHN
IPC: B61G5/08
Filed: 1959-06-05
Abstract: 904,145. Railway vehicle automatic couplings. ENGLISH STEEL CORPORATION Ltd., and METALASTIK Ltd. May 26, 1960 [June 5, 1959], No. 19239/59. Class 103(5) An automatic coupler which may be swung about a horizontal axis 7 and a vertical axis 4, Fig, 1, and may be moved aside to disclose a hook 8, is supported by a shelf 11 engaging in the underside of the head 6, the shelf being swingable in vertical and horizontal planes to permit the heads of mating couplers to be engaged. The shelf 11 projects from a housing 18, Figs. -6, 7 and is mounted on a block 19 with trunnions 20 engaging in slots 21, the shelf being urged upwardly into a horizontal position by a pre-loaded rubber bush 23, Fig. 8, secured to pivot pins 25 fastened to arms 26 carrying the shelf. The trunnion block 19 is contained in a cylindrical housing 28 within the main housing 18, and the rear wall 28C of the housing contacts a pressure plate 30. The spring 31 yields under buffing load, and the housing 28 slides with its trunnions in the slots 21 along the housing 18. Pre-loaded rubber-metal springs 37 force an angle piece 39 against the wall 28C, and lugs 40 of a member 35 into engagement with lugs 41 on the housing 28. When the shelf 11 is aligned with the spring 31 the housing 28 is held by a spring urged catch 42 so that any rotation of the shelf is resisted by the springs 37, Fig. 9 (not shown). The catch 42 may be retracted by means not shown, and the housing 28 may be swung with respect to the main housing 18 so that the catch may be re-engaged in a hole 45, in which position the hook 8 is presented for coupling. Sets of upstanding pegs 51, Fig. 1, on the head enable it to be swung by a shunter's pole. In another embodiment, Fig. 10, the main housing 52 slidably carries a secondary housing 53 which in turn carries the rotatable housing 28, but the trunnions 20 of the block 19 merely rotate in bushes 59, the housing 53 sliding back into the main housing 52 under buffing load. The shelf 60 has a spring urged extension 62 which allows for relative movement between the head 6 and the shelf, and the shelf is embraced by arms 64 of a stirrup suspended from a pivot 65, so that after any upward swing of the head 6 the shelf is kept in alignment with the pocket.
Patent GB-695519-A (GB)
Title: Wind turbines
IPC: F03D1/04
Filed: 1951-08-15
Abstract: 695,519. Wind motors. RIBEIRO, A. F. Aug. 15, 1951 [March 30, 1951], No. 19298/51. Class 110(iii) A wind motor comprises a convergent divergent duct 1 surrounding a co-axial member 4 of eggshaped configuration and a turbine wheel 5 arranged within the duct at the zone of flow of minimum cross-sectional area. Distributing blades 6 are arranged in front of the turbine wheel. A centrifugal governor 9 controls a brake shoe 10 co-operating with a drum 11. Alternatively the speed of the turbine may be controlled by a shutter adapted to blank off part of the air inlet.
Patent GB-1374572-A (GB)
Title: Turbine flowmeter
IPC: G01F1/10
Filed: 1972-12-07
Abstract: 1374572 Turbine flowmeters ITT INDUSTRIES Inc 7 Dec 1972 [9 Dec 1971] 19304/74 Divided out of 1374188 Addition to 1309516 Heading F1F In a turbine flowmeter as in the parent Specification 1374188, the rotor has a pair of stub-shafts located in blind bores in a pair of cup-shaped diffusers, and the shafts are longitudinally grooved so that the bottoms of the bores are filled with liquid.
Patent GB-1006314-A (GB)
Title: Voltage threshold detector
IPC: H03K17/58
Filed: 1964-05-08
Abstract: 1,006,314. Semi-conductor pulse circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 8, 1964 [May 13, 1963], No. 19348/64. Heading H3T. A voltage threshold circuit comprises a Zener diode 11 having a zero temperature coefficient at a certain reverse current value connected in series opposition to a tunnel diode 10 having a peak current at said value. It is explained that at a current value in the " constant voltage " region of a Zener diode the current through it for a given voltage across it does not vary with temperature and as the voltage of the peak point of the tunnel diode does not vary appreciably with temperature, the threshold at which the series circuit switches to a high voltage state is not temperature sensitive. The series arrangement of 10 and 11 receives a current from transistor 40 below the peak value so that the tunnel diode 10 is in its low voltage state. If a negative pulse is applied at 45 the current through transistor 40 starts to rise at a rate determined in part by a capacitor 51. When the current reaches the peak value of the tunnel diode the voltage across it switches to a higher value producing an output pulse at 56. At the end of the input pulse the output reverts to its original value after a short delay.
Patent GB-828573-A (GB)
Title: Improvements relating to self-locking nuts
Inventor: BURNELL WILLIAM JOHN
IPC: F16B39/14
Filed: 1957-06-20
Abstract: 828,573. Making nuts. SIMMONDS AEROCESSORIES Ltd. Sept. 9, 1958 [June 20, 1957], No. 19440/57. Class 83 (2). [Also in Group XXV] A self-locking nut comprising a body 1 with a screwed bore 8 and an insert 3 in a recess 9, is made by assembling the insert and resilient means 5 in the recess, turning-over the end 6, inserting fingers 7 through slots 2 in the recess wall and screwing the body and insert in a single operation. The fingers are subsequently removed, so that the resilient means, e.g. a spring or a rubber or nylon ring, presses the insert to the bottom of the recess.
Patent GB-681113-A (GB)
Title: Improvements in cleaning arrangements for textile spinning machines
Inventor: COISNE HENRI
IPC: D01H11/00
Filed: 1950-08-03
Abstract: 681,113. Clearing arrangements in spinning machines. CONTINENTALE D'APPLICATIONS TECHNIQUES. Aug. 3, 1950. No. 19448/50. Class 120(iii) [Also in Group XXIX] In a pneumatic cleaning apparatus for spinning machines, a fan 13 draws air containing waste material e.g. broken rovings and dust, through orifices in pipes 9 and a filter 14, and the cleaned air is distributed to blower boxes 23 which are connected successively and in predetermined order with a collector casing '21 so that jets of air are directed downwardly over the machine thrbugh outlets 25. Air distribution means may comprise individual hinged, rotary, or lift valves (see Group XXIX), for each box; they may be operated by cams keyed on a common drive shaft and bearing directly on an extension of the valve element or actuating oscillatory levers flexibly connected to the valves; by apertured discs geared'to separate but synchronously rotating electric motors; by solenoids energized in response to either cam operation of mercury switches or the impingement of beams of light intermittently projected through a rotating apertured disc on to photo-electric cells; or by pneumatically or hydraulically controlled pistons. In a modification each box is connected to the collector by an' individual casing the distribution of filtered air being controlled by an'opening in a disc to which intermittent rotary movements are imparted. In an application of the invention to an installation comprising a series of parallel spinning machines, Figs. 12, 13 (not shown), a collector for each machine is connected by a filtering group with a general collector connected to a fan which discharges air through an additional filter into a casing extending the length of the installation and communicating with each of a series of correspondingly extending. blower boxes each comprising blower conduits, one for each machine, each having a series of downwardly directed openings the air being successively distributed to each box.
Patent GB-279953-A (GB)
Title: Improvements in radial flow turbines
IPC: F01D5/04
Filed: 1926-08-06
Abstract: 279,953. Fairweather, H. G. G., (Allmõnna Svenska Elektriska Aktiebolaget). Aug. 6, 1926. Blades. - In radial-flow turbines each blade ring 2 is secured to its disc 4 by means of bolts 6 passing through concentric annular projections 3. 5 on the members 2, 4. The head of each bolt 6 is cut off at one side to engage the adjacent face of the disc to hold the bolt against rotation, and the bolt is split at the end, the members 2, 4 being thereby secured to one another with sufficient clearance to allow for differential expansion. The projections 3, 5 may be wedge-shaped, and the projection 5 may be formed on a member 9, Fig. 4, secured to the disc by screws, by a rolling operation. or by clamping means. A groove in the member 9 may receive the end of the projection 3.
Patent GB-502319-A (GB)
Title: An improved process for the preparation of alkali percarbonates
IPC: C01B15/10
Filed: 1938-07-01
Abstract: 502,319. Alkali percarbonates. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT VORM. ROESSLER. July, 1, 1938, No. 19596. Convention date, July 1, 1937. [Class 1 (iii)] Alkali percarbonates, for instance sodium percarbonate, are obtained by adding solid alkali peroxide and alkali bicarbonate gradually at say 6-8‹ C. to a hydrogen peroxide solution' containing common salt, preferably in the presence of a stabilizer such as magnesium silicate, and salting out the percarbonate formed by addition of solid common salt, the mother. liquor after separation of the percarbonate being re-used to provide the common salt content of the hydrogen peroxide solution. In a modification, hydrogen peroxide, alkali peroxide, and alkali bicarbonate are all gradually introduced into the mother liquor from a previous operation. Solid percarbonate may be added to the mixture to assist separation of the freshly formed salt. Examples .of operation are given.
Patent GB-844681-A (GB)
Title: Improvements in electric discharge devices of the liquid cathode type
Inventor: KNIGHT HENRY DE BOYNE
IPC: H01J13/34
Filed: 1956-06-25
Abstract: 844,681. Metal-vapour discharge apparatus. BRITISH THOMSON-HOUSTON CO. Ltd. June 13, 1957 [June 25, 1956], No. 19605/56. Class 39(1). An electric discharge device comprises a sealed evacuated envelope containing a pool type cathode of electrically conducting liquid, an anode, and an ignitor electrode dipping into said pool type cathode between which and said cathode an initiating arc is adapted to take place means for preventing effective variation in the level of said conducting liquid adjacent said ignitor electrode comprising a plate-like member which is formed of a material wettable by said conducting liquid or which is formed of porous material, which is located parallel to the surface of said pool and in contact with said pool, and which is formed with an aperture or depression to receive the end of said ignitor electrode whereby said initiating arc passes between said ignitor electrode and said cathode through conducting liquid adherent to said plate-like member. In the construction shown a plate 18 of molybdenum treated to render it wettable by mercury is supported by a port 19 and has an aperture 20 into which the tip of the ignitor 12 projects. In an alternative construction, Fig. 2 (not shown), the plate 18 is provided with a central depression and is supported by a metal strap from the wall of the envelope. The ignitor 12 may be made of semi-conductor material or may be an electrically heated member as described in Specification 457,742. The anchoring device 18 may consist of sheet metal or of a composite structure of sheet or wire. Specifications 292,500, 481, 078, 487, 462, 505,474, 530, 073, 536, 932 and 543,072 also are referred to.
Patent GB-589244-A (GB)
Title: Lawn edge trimmer
IPC: A01G3/06
Filed: 1944-10-12
Abstract: 589,244. Lawn-edge trimmers. BOOTH. R. Oct. 12, 1944, No. 19681. [Class 6 (ii)] A lawn-edge trimmer comprises a roller or rollers 4 propelled along the grass or ground, and a cutter disc or discs 6 beneath the rollers and in peripheral contact therewith. The cutters are supported in a carrier 7 slidably and resiliently mounted on the main frame 2 to which the rollers and the handle are attached.
Patent GB-1164430-A (GB)
Title: Outlet Device for a Bunker for Discrete Material
IPC: B65D88/28
Filed: 1966-08-21
Abstract: 1,164,430. Hoppers. INDUSTRIE-BAU NORD G.m.b.H. & CO. K.G. 21 Aug., 1966 [30 June, 1966], No. 19686/69. Divided out of 1,161,473. Heading B8S. An outlet device 2a for a bunker 1 for discrete material comprises two inclined walls 3d, 5d, diametrically opposite each other in an upper portion of the device and which lead to two inclined outlet faces 8d, 10d offset at 90 degrees to the walls 3d, 5d in a lower portion of the device. The outlet faces 8d, 10d respectively open into outlet slots 28, 29 offset to each other in the floor of the bunker 1. The walls 3d, 5d rest on a medial wall 27 extending completely across the bunker 1. Opposite outlet faces 8d, 10d are, respectively, vertical walls 30, 31 with recesses 30a, 31a. The device is applicable to bunkers of various cross-sections (not shown).
Patent GB-656620-A (GB)
Title: Improvements in resistance welding apparatus
IPC: B23K11/00
Filed: 1948-07-23
Abstract: 656,620. Turbine blades. WING MANUFACTURING CO., L. J. July 23, 1948, No. 19783. [Class 110(iii)] [Also in Group XXII] Buckets 54, Fig. 4, of a steam &c. turbine have stems 80 passing through apertures 90 in a shroud 92 which is welded to the periphery of a rotor 20 simultaneously with the welding of the buckets. The rotor has the section shown in Fig. 5 with grooves 110, 112 to concentrate the welding heat at the rim.
Patent GB-957062-A (GB)
Title: A regulating arrangement
IPC: G05B6/02
Filed: 1961-06-01
Abstract: 957,062. Automatic control. SIEMENSSCHUCKERTWERKE A.G. June 1, 1961 [June 3, 1960], No. 19887/61. Heading G3R. In a system for controlling a quantity (e.g. angle of a ship's stabilizer fin) by a device responsive to an error signal derived from the difference between the actual value of the quantity and a reference value, the reference value comprises the output U 2  of an amplifier having negative feedback Z and a resistor R 0  in its input circuit; the input U 1  is a "desired value" signal (e.g. amount of roll) and the amplifier gain is yaried in accordance with a further, independently variable, quantity (e.g. ship's speed) by adjustment of the ratio of the input resistor R 0  to the feedback Z. As shown, both are varied simultaneously, one universely to other, but alternatively either one, only, may be varied or one may be varied proportionally with V, the independent variable, while the other is varied as 1-V. It is shown that, using linear rheostats for R 0  and Z, a required characteristic may be approximated to, or for better agreement non-linear rheostats may be used. The variation may be limited to part of their range. The amplifier may be a transistor amplifier.
Patent GB-1016194-A (GB)
Title: Circuit-breakers with multiple circuit-breaking chambers
IPC: H01H33/34
Filed: 1963-05-20
Abstract: 1,016,194. Oil break switches. J. L. GRATZMULLER. May 20, 1963 [May 25, 1962; Oct. 12, 1962], No. 19941/63. Heading H2B. In a circuit breaker comprising a plurality of series connected breaking chambers each of the kind described in Specification 975,137, the fracture of any of the tensioned operating rods 5, Fig. 1 (not shown), results in the corresponding piston 11 moving under the fluid pressure beyond its on position so as to leave the cylinder 3 and knock off a cover 12, to vent the cylinder 3 and thus through the fluid system 9 to vent all other cylinders 3 and open all other contacts. In a modification the piston 11 remains in the cylinder but uncovers a vent in the wall thereof. Two separate breaking chambers may be mounted on a single insulator column 4, Fig. 2 (not shown), and controlled by a single insulating rod 5 through linkages or gearing. Hydraulic dampers ensure that upon fracture of any rod 5 all contacts, including those associated with the fractured rod, will open substantially simultaneously.
Patent GB-404882-A (GB)
Title: Improvements in and relating to junction sleeves for submarine cables
IPC: H01B7/14
Filed: 1933-07-14
Abstract: 404,882. Cable joints. FELTEN & GUILLEAUME CARLSWERK AKT.-GES., Mulheim, Cologne, Germany. July 14, 1933, No. 20002. Convention date, July 27, 1932. [Class 38 (i).] In order to prevent water that enters a fault in one section of a submarine cable from percolating to adjacent sections the cable joint comprises a short section of cable having insulation which is impervious to water. A rubber block 1 has conductors 2 vulcanized therein and connected at each end 3 to the cable sections. The lead sheathing 4 is pressed by the water pressure into grooves 5 in the block 1. The ends of the block are tapered and fitted with a metal ring 6 between which and the sheath 4 a V-shaped leather packing 7 is held by a screw collar 8. Bores 9 in the collar 8 allow any water entering the cable section to apply pressure to the packing 7.
Patent GB-575007-A (GB)
Title: Improvements in or relating to cartridge-feeding mechanism for an automatic gun
IPC: F41A17/40
Filed: 1943-11-30
Abstract: 575,007. Cartridge feed mechanism for automatic guns. DEARSLEY, G., and MOLINS MACHINE CO., Ltd. Nov. 30, 1943, Nos. 20012/43 and 10955/44. [Class 92 (ii)] A cartridge belt of the disintegrating type is fed to a gun 34, or the normal automatic gun feed is assisted, by a clock spring 9, Fig. 2, driving the belt sprockets 24, 25 and wound by an electric motor 1 acting through an irreversible worm gear 5, 6 and a sleeve 12. Further, the sleeve 12 provides a lostmotion screw device, the nut member 13 of which acts through a switch device 15, 16 to stop the motor when the spring is fully wound and to restart the motor when the spring tension is reduced. A ratchetoperated device 18 on the driving wheel 19 permits the spring to be initially wound by a handle applied to a shaft 22. To ensure the hopper 33 leading to the breech of the gun 34 being full of cartridges when the cartridge supply is exhausted, a feeler lever 36, Fig. 1, moves behind the bottom cartridge and operates a switch 35 to open the firing circuit through a solenoid 39, Fig. 4. A similar switch 40 is controlled. by cartridges leaving the belt box. The links of the belt. are disintegrated into a shoot 31 during the feed by a sprocket 27 which engages the links and operates against the sprocket 25 as a reaction member. The arrangement of the switches 16, 35 in relation to the motor and firing circuits is shown in Fig. 4. The switch 42 operated by the gun safety lever 43 permits the spring 9 to be fully wound prior to the commencement of fire. The motor may be reversed by a switch 46 to relax the spring tension when threading the belt. Specification 490,221 is referred to.
Patent GB-1412526-A (GB)
Title: Enhanced readout of stored holograms
IPC: G11C13/04
Filed: 1973-04-27
Abstract: 1412526 Holograms R C A CORPORATION 27 April 1973 [28 July 1972] 20016/73 Heading G2J [Also in Division G4] A hologram on recording medium 16, Fig. 1, is read out using both the object beam 38 and reference beam 17, one of which is modulated. As described the hologram is formed by splitting the beam from a laser 10 (deflected by deflector 12) so that the object beam is directed via one of a number of holograms in an array 14. The object beam passes via lens 26 to page composer 24 containing a number of storage locations equal to the number of light sources in each hologram. The page composer has an electronically controlled light shutter means so that the storage locations may be made relatively opaque and transparent. At the recording medium which is preferably photographic film (but may be photochromic, magnetic, low melting point glass or ferro-electric a hologram is formed by the interference of the object beam and the reference beam which is fed from the beam-splitter via lenses 19, 21, mirror 20 and modulator 50. Enhanced read out is obtained by having all the storage locations of the page composer transparent so that both the object beam and modulated reference beam are used. Modulation of the reference beam at a frequency f o  results in a virtual image wave of intensity where k is a constant, n is the holographic efficiency, x = 2# fot and I R  is the intensity of the reference wave. Filters 52 remove the constant terms and the term of frequency 2x. Amplitude modulation may be effected using a polarization rotator to produce a rotating linearly polarized wave, and a fixed polarizer. Alternatively intensity modulation may be effected using a mechanical shutter (70), Fig. 6 (not shown) in which case the intensity of the detected signal is of the form where p(t) is a Fourier series expansion of a squarewave. In this embodiment detector array 56 is followed by either high pass filters for detecting all the components of the enhanced signal or band pass filters hued to one component. Phase modulation may be obtained using a Piezo-electric crystal (76), Fig. 5 (not shown) oscillating in response to an electrical modulating signal and carrying a mirror (20). Alternatively a mirror may be secured to a magnetic bar located within a coil oscillated by an A.C. signal. Alternatively a transparent disk (80), Fig. 7 (not shown) of varying thickness may be rotated to vary the path length taken by the reference beam. The intensity of the detected signal is then  Both beams may be modulated for example by using two disks of the same shape and rotating them at different speeds or two disks of different shapes, e.g. with two and four slots, rotated at the same speed.
Patent GB-376501-A (GB)
Title: Improvements relating to railway switches
IPC: B61L5/02
Filed: 1931-07-13
Abstract: 376,501. Railway switches. MARSTON, A. T., Ashby Road, Moira, Burton-on- Trent. July 13, 1931, No. 20018. [Class 104 (1).] A supporting clip A is fixed to the switch E and passes under the switch and the stock rail F to engage, by means of a slot, a clip B fixed to the rail.