baber/WOPTO huggingface dataset:
Patent GB-550359-A (GB)
Title: Improvements in and relating to methods of and apparatus for manufacturing commutators for small dynamo electric machines
IPC: H01R43/06
Filed: 1941-09-02
Abstract: 550,359. Slotting commutators. BRITISH THOMSON-HOUSTON CO., Ltd., and MORTON, C. J. Sept. 2, 1940, No. 11190. [Class 145 (i)] [Also in Group XL] In manufacturing commutators for small dynamo-electric machines the commutator is automatically clamped in the correct position for undercutting the mica insulation by a saw or slotting tool by projecting a beam of light on to the surface of the commutator 1 so that it is reflected through a shrouded slot 7 on to a light sensitive cell 6. The commutator is rotated by a slow-moving belt 10 and when an insulation strip interrupts the illumination of the cell, a relay 8 is actuated which controls an electromagnetic locking device 9 to clamp the commutator in the correct position by moving vertically. If a reciprocating slotting tool is used, it may engage a spring-loaded contact 11 at the end of its stroke, thus deenergising the electromagnet and releasing the commutator.
Patent GB-1584139-A (GB)
Title: Optoelectronic fuse
IPC: F42C13/02
Filed: 1978-03-22
Abstract: Located side-by-side in the nose of the fuze (1) are the optical systems (2, 3) of a directional-beam transmitting arrangement and of a directional-beam receiver arrangement, whose beam lobes (4, 5) are adjustable such that they intersect in front of the fuze (1). The transmitting arrangement contains a beam transmitter (7) in the form of a light-emitting diode, and the receiver arrangement contains a light-sensitive element (8). The light-emitting diode (7) and the light-sensitive element (8) are each mounted on a slide (12, 13) which is arranged such that it is transversely displaceable on a small carrier board (10, 11) which is in the form of a disc and, for its part, is supported in a spherical body and can rotate about the axis (a, b) thereof. Such an adjusting device allows quick coarse initial adjustment and, subsequently, fine readjustment of the fuze. <IMAGE>
Patent GB-609709-A (GB)
Title: Improvements in or relating to compressed air-operated brakes
IPC: B60T15/30
Filed: 1944-06-13
Abstract: 609,709. Brakes. CHRISTEN, F. June 13, 1944, No. 11293. [Class 103 (i)] In a compressed air brake, the control reservoir 3 is isolated, immediately the brake pipe pressure falls, from the auxiliary reservoir 2 and the brake pipe 9, by a valve 8 which is operated by a metallic bellows 21, the inside of which is subjected to pressure when the brake pipe is vented, through the accelerator valve 7 and the cut-off valve 35, to the pipes 23, 24, 33, into the brake cylinder. The valve 35 is promptly closed by control reservoir pressure in the metallic bellows 38. A throttle passage 19 is provided in the piston 16 of a quickinshot valve 4, which piston is raised by auxiliary reservoir pressure when the brake pipe pressure falls. This seats the piston against the cover of the valve 4 and shuts off the passage 19 and raises the valve 25 to connect the auxiliary reservoir with the brake cylinder. This connection is stopped when a predetermined brake cylinder pressure is attained, by the depression of a piston 30 carrying a valve 28. The auxiliary reservoir is then connected to the brake cylinder by the normal action of the control valve 6. The reservoirs 2, 3 are charged through valves 45, 46 and a pipe 44 which may include a valve having a metallic bellows, the inside of which is subjected to control reservoir pressure and the outside to auxiliary reservoir pressure, so that the valve opens if auxiliary reservoir pressure falls sufficiently below control reservoir pressure. The auxiliary and control reservoirs may be connected by means comprising valves, the compression springs of which are regulable by cam means, for releasing excess control reservoir pressure. In a modification, the valve 20 closes over a seating having small ports communicating with a throttle passage, corresponding to the passage 19, leading from the brake pipe to the seating. The closing of the valve on the seating isolates the control reservoir, auxiliary reservoir and brake pipe from one another.
Patent GB-1125751-A (GB)
Title: Fuel cell
IPC: H01M8/22
Filed: 1963-03-21
Abstract: 1,125,751. Fuel cells. GERMANY, MINISTER OF DEFENCE. 21 March, 1963 [24 March, 1962], No. 11353/63. Heading H]B. In a fuel cell for the electroohemical conversion of hydrazine dissolved in an electrolyte with oxygen or air, a porous moulded body or a porous sheet of a base metal is employed for the fuel electrode and a body of pure carbon, containing no metal additions, for the oxygen or air electrode, the electrodes being immersed in the fuel-electrolyte solution without separating diaphragms. A rolled porous sheet of powdered nickel and/or iron and/or cobalt or a moulded body of compressed and sintered powders of these metals may be used as the fuel electrode. A suitable electrolyte is soda or potash lye, preferably in a concentration of 3 to 8 mol./litre. The concentration of hydrazine in the electrolyte is between 0À1 and 40%, preferably between 1 and 10%, by wt. Air at atmospheric pressure may be fed to the carbon electrode but if, instead, oxygen at a slightly higher pressure is used, the current density can be increased about four-fold. The hydrazine is added to the cell either continuously or intermittently, or else all the fuel-electrolyte solution is circulated and freshly enriched outside the cell with hydrazine.
Patent GB-705133-A (GB)
Title: Improvements in or relating to profile milling cutters
IPC: B23C5/24
Filed: 1952-05-06
Abstract: 705,133. Milling-cutters. SAXER, A. May 6, 1952 [Dec. 3, 1951], No. 11385/52. Class 83 (3) A milling-cutter comprises a number of identical cemented carbide circular or polygonal teeth 3-38 disposed on a body 1 according to the profile to be cut, the lateral-cutting teeth, such as 3, 14, being inclined relatively to end-cutting teeth, such as 11, 21, so as to give constant cutting and clearance angles for each tooth. For cutting a rolling-stock tread profile 2, the tooth rings 39 are each mounted on an eccentric bushing 40 and clamped by a bolt 43. The blades preferably are cylindrical so that they may be reversed to use the opposite edges. For machining a crank pin 2a some of the blades are circular discs but the radii and webs are machined in part, by lathe-like tools such as 49, 46. As more material has to be removed by the latter tools there are three on each side of the cutter, the centre portion of the pin being machined by only one blade at each point. The disc blades, such as 45, Fig. 5, are supported on pins 69 in radially-adjustable blocks 65a and clamped by Wedges 67 and screws 68. The lathe-like tools, such as 46, Fig. 6, are similarly clamped but are adjusted radially by packing-pieces 66. The blades may be clamped solely by screws.
Patent GB-821081-A (GB)
Title: Indirect heaters
Inventor: LORENZ WILBUR JAMES
IPC: F23D14/00
Filed: 1957-04-08
Abstract: 821,081. Heating gases. BLACK, SIVALLS & BRYSON Inc. April 8, 1957, No. 11403/57. Class 64(3) An indirect heater comprises a vessel having a fire tube and a fluid conduit both extending into the vessel from the outside, the fire tube being secured to the' wall of the vessel through which it extends, by means of a bellows device. A vessel is constructed from a cylindrical shell 2 with end plates 3 and 4, through which extend respectively a fire tube 9 and an inlet 22 and outlet 24, Fig. 3 (not shown) for coils 23 through which the fluid to be heated passes. The vessel is filled with salt through the holes 30 which is molten in operation but solidifies when cool. In order to allow for thermal expansion of the fire tube when the burner .11 is first started and the salt is solid around the tube a bellows device 12 is used to connect the fire tube to the end wall 3. Thermal expansion of the exhaust stack 16 is allowed for in providing the flange 20 with weather shield 21. The invention could also be used in a heater with a double U-type fire tube,
Patent GB-226478-A (GB)
Title: Improvements relating to installations of prime movers
IPC: F02G3/00
Filed: 1924-05-09
Abstract: 226,478. Rheinische Metallwaaren und Maschinenfabrik. Dec. 19, 1923, [Convention date]. Power-generating systems.-A steam-engine c is driven by steam circulating in a closed system, the exhaust passing to a compressor b driven by an internal combustion engine a of constant output. A steam storer d with a large water content is inserted in the high-pressure arm of the system to compensate for the variable demand for steam. A second storer f is connected to the low pressure arm through a condenser e on one side and a pipe on the other and receives any excess of exhaust steam and augments the compressor supply when necessary-
Patent GB-1141236-A (GB)
Title: Improvements in or relating to the synthesis of cyanohydrins
Inventor: NAGATA WATARU
IPC: C07J41/00
Filed: 1967-03-13
Abstract: 1,141,236. Cyanohydrins. SHIONOGI & CO. Ltd. 13 March, 1967 [14 March, 1966], No. 11560/67. Headings C2C and C2U. The invention comprises 20- cyano - 5- pregnene - 3#,20 - diol 3 - acetate, 1 - cyano-6- methoxy - 1,2,3,4 - tetrahydronaphthalene - 1 - ol, 1 - cyano - 6 - methoxy - 3,4 - dihydronaphthalene, 3#,20 - dihydroxy - 5,16 - pregnadiene - 21 - nitrile, 17 - cyano - 5α - androstan - 17 - ol, 17 - cyano - 5 - androstene -3#, 17 - diol 3 - acetate, 3 - cyano - 5α - androstene - 3,17# - diol 17 - acetate, 17 - cyano - 5α - androstane - 3x,17 - diol 3 - acetate, 20,20- ethylenedioxy - 3# - (2 - hydroxyethoxy) - 3α,5 - epoxymethano - 5α - pregnane - 51 - carbonitrile, 3 - cyano - 5 - cholesten - 3 - ol and a process for preparing a cyanohydrin which comprises reacting an organic carbonyl compound with an alkylcyanoaluminium compound of the formula RR<SP>1</SP>AlCN wherein R is a lower alkyl group (1-5 carbons) or a lower alkoxy group (1-5 carbons) and R<SP>1</SP> is the same or halogen. Reaction may be effected at not higher than room temperature for not more than 5 hours in an inert solvent.
Patent GB-644669-A (GB)
Title: Improvements connected with step ladders
IPC: E06C7/18
Filed: 1948-04-28
Abstract: 644,669. Step ladders. MATTHEWS, C. H. April 28, 1948, No. 11591. [Class 20 (ii) ] A step ladder is provided with a U-shaped guard rail 3 fitting in slots 5 in the top platform of the ladder and secured to the sides 4 of the ladder.
Patent GB-467622-A (GB)
Title: Improvements in or relating to roofing tiles
IPC: E04D1/16
Filed: 1936-04-23
Abstract: 467,622. Roofing-tiles. SWINGLER, E. April 23, 1936, No. 11652. [Class 87 (i)] Tiles laid to a double lap are formed on their exposed faces with two or more channels 4, 5 between upstanding edges 1, 3 and an intermediate ridge or ridges 2. The tiles are cambered in a longitudinal direction and are provided with hanging nibs 8 and nail holes 13 in the ridge 2 and, if desired, in the chamiels 4, 5. The faces 4, 6 are of the same curvature.
Patent GB-1488802-A (GB)
Title: Method of and an apparatus for feeding slivers to a nip comber
IPC: D01G19/08
Filed: 1976-03-23
Abstract: 1488802 Feeding sliver to a comber TSENTRAL N I INST SHERSTYANOI PROMYSHLENNOSTI 23 March 1976 11712/76 Heading DIN Slivers are fed to a nip comber by arranging them in one row or in two rows with the slivers of the second row laterally displaced relative to those of the first row and shaping each to an elliptical cross-section, flattening them to a rectangular cross-section in which they are stabilized by heating and combining them to form a lap which is advanced to the nip comber. The rows are formed and the elliptical shape produced by a board 10 with elliptical holes and the flattening is by a roller pair 13 and then spring loaded plates 19 located in guide channels 18 over a heated guide table 14. A feed box 6 precombs the lap which is held by nippers 28, 29. Separators 17 between channels 18 are no greater than 2 mm. The board 10 illustrated has two rows of elliptical holes, the holes of one row being displaced by <SP>2</SP>/ 3  of a major diameter with respect to the holes of the other row.
Patent GB-197334-A (GB)
Title: Improvements in casting machines for metals
IPC: B22D17/22
Filed: 1923-05-01
Abstract: 197,334. Candler, De F. W. May 4, 1922, [Convention date]. Casting-apparatus; moulds; cooling moulds. - The Specification in the original form, as open to inspection under Sect. 91, (3) (a) stated that the metal-casting machine described was applicable for casting other materials. This statement does not appear in the Specification as accepted. The casting-machines are of the type in which a series of moulds are carried by a rotatable member, as described in Specification 186,906, and they are provided with means for supplying cooling fluid to the moulds and the guides upon which the mould sections slide.. A fixed elbow H<2> supplies fluid, preferably compressed air, to a tube H ported at H<3>. A valve G rotatable with the mould turret B is provided with ports G' communicating with pipes having flexible connections J<3> J<4> to the hollow mould sections which are provided with exhaust ports E<3>, F<3>. The port H<3> is such that the fluid supply is cut off from the mould that is at the pouring station. Passages G<8> connect the air supply to the hollow guide rods D.
Patent GB-130443-A (GB)
Title: Improvements in connection with Feed-water Supply Fittings for Steam Boilers and the like.
Inventor: HEWINS HENRY
Filed: 1918-07-18
Abstract: 130,443. Hewins, H. July 18, 1918. Feed-water, supplying.-The feed pipe a is led through the water space and over a spreader plate d in a tank c, which is open to the steam space and has a cover e mounted freely on studs n on the tank. The outlet f from the tank is connected to a sludge trap g, from which the water flows through a pipe g<1> to a veitical cross-pipe h opening at its lower end into the blow-off and at its upper end into a grease trap l.
Patent GB-820707-A (GB)
Title: Improvements in and relating to shields for thermionic valves
IPC: H01J5/12
Filed: 1958-04-14
Abstract: 820,707. Holders for thermionic valves. UNITED - CARR FASTENER CORPORATION. April 14, 1958 [May 3, 1957], No. 11854/58. Class 38(1). [Also in Group XL (c)] A valve-holder for use with a telescopic screening can as described in Group XL (c) comprises a base 11 into which a plurality of socket terminals 12 and a central earthing pin 16 are inserted. The tails 34 of the terminals are bent as shown in Fig. 6 and the hook portions 36, 37 fit into holes 15 in the panel 13 (which may carry a printed circuit) such that they are compressed slightly as shown in Fig. 1. Projections 38, 39 bear against the upper and lower surfaces of the panel, thereby locking the terminals into the panel. The eye of the hook 35 may be enlarged for dip soldering, as shown at 40.
Patent GB-650225-A (GB)
Title: Improvements in or relating to apparatus for cutting sheet material
IPC: B26D7/01
Filed: 1948-05-01
Abstract: 650,225. Cutting glass. STOREY, W. H. May 1, 1948, No. 11963. Drawings to Specification. [Class 56] [Also in Group VIII] In an apparatus for cutting sheet material (see Group VIII) comprising a flat support for the material, a guide extending transversely of the support, a cutter carriage traversable along said guide and a clamping strip overlying the support parallel to the guide, the cutter carriage may be provided with a glasscutting diamond or a number of glasscutting wheels.
Patent GB-430687-A (GB)
Title: Improvements in or relating to grinding wheels
IPC: B24D13/04
Filed: 1934-04-20
Abstract: 430,687. Abrasive wheels. LUNDQVIST, P. R., 7, Hantverkaregatan, Falun, Sweden. April 20, 1934, No. 11970. Convention date, May 16, 1933. [Class 60] A grinding wheel consists of a rigid circular holder to the circumference of which is attached elastic abrasive material formed in one or more sections 9 provided with a hollow space 8 to increase the resiliency. In the form shown, the holder comprises two discs between the flanges 4, 5 of which a number of sections 9 of the abrasive material are clamped ; the longer dimensions of the sections may be parallel or perpendicular to the axis of the wheel. The hollow spaces in the sections may be filled with material such as sponge rubber, or an elastic air-filled tube. The abrasive material may consist of rubber mixed with emery or carborundum and with sulphur or other vulcanizing medium; it may be vulcanized on canvas or other strengthening material, and rubber layers may be inserted between it and the canvas ; canvas strengthening layers may be arranged in the abrasive material.
Patent GB-375015-A (GB)
Title: Improved machine for the production of black puddings and the like
IPC: A22C11/08
Filed: 1931-04-23
Abstract: 375,015. Making blackpuddings. THOMPSON, A. J., 94, Lichfield Road, Aston, Birmingham. April 23, 1931, No. 11990. [Class 28 (ii).] In a machine for making blackpuddings and the like, pieces of fat are inserted in the other ingredients, this being effected by a rotary cylinder 8 having three pockets 10 which register in succession with a table 39 along which the strip of fat is fed mechanically or by hand and severed by a knife 24 ; with a passage 11 leading from the hopper 1 containing the meat paste ; and with a filling tube 48. The drum is rotated intermittently by a pawl 41 connecting the main shaft 5 with the drum shaft 9, a shroud being provided to lift the pawl intermittently so that the drum rotates through one-third of a revolution for every revolution of the shaft 5. The shaft 5 is connected by a chain 4 to a shaft 3 carrying a cam 30 which engages the end 29 of a rocking lever 27 connected to the knife 24 which is returned by a spring 39a. Another cam 38 actuates a slide 33 in the stationary coverplate 31 of the casing 7 containing the cylinder 8. This slide 33 covers and uncovers the pocket 10 when it is aligned with the filling tube 48. A plunger 12 is reciprocated by a, cam 21, levers 13, 16 and connecting link 19. When the slide 33 has uncovered the pocket 10 the plunger 12 passes into the pocket and forces the charge into the casing of the black. pudding. The slide 33 then closes the pocket 10 to prevent the suction of the plunger during its withdrawal from drawing the filling material. out of the casing. The hopper 1 contains mixing paddles driven by a chain 2 from the shaft 3. The machine may be driven by a hand-wheel 6 or by power. The knife 24 may be arranged to reciprocate vertically, oscillate or revolve.
Patent GB-200460-A (GB)
Title: Improvements in or relating to the preparation of pitch
IPC: C10C3/18
Filed: 1922-05-22
Abstract: 200,460. Coke & Gas Ovens, Ltd., (Still, C.). May 22, 1922. Pitch from a tar still 1 passes to a sunken receiver 2 from which it is forced by compressed air to raised pitch bays 3, so that when the pitch is solidified, it may be shovelled down to a truck 4. The pitch bays may have flexible walls connected at their upper edges by chains with a turnbuckle arrangement, these chains being tensioned where the molten pitch is admitted but released when the pitch has solidified so that the walls will return to their normal positions leaving gaps into which the breaking-up tools can be inserted.
Patent GB-1460114-A (GB)
Title: Apparatus for forming a web from a fibrous stock slurry
IPC: D21F9/02
Filed: 1974-03-19
Abstract: 1460114 Paper making apparatus BELOIT CORP 19 March 1974 [27 March 1973] 12157/74 Heading D2A To control the drainage of a fibrous web laid down on a moving porous surface 12 such as a Fourdrinier wire, the fibrous slurry to form the web being supplied from a headbox 11 having upstream and downstream lips 15, 17 defining a slice opening, a plate 26, 29 is provided extending across the slice opening, the plate having a perforate portion 29 and an imperforate portion 26 to block drainage of the web in this region, the plate 26, 29 being adjustable, e.g. by power means 27, in the upstream-downstream direction to control the drainage and thus the position of dry line 30. As shown, the plate 26, 29 is connected to, and movable with, a suction box 23 having compartments 23a-23d connected to a pump 25 and overlying a container 24 for collecting white water. Drainage is thus effected between the upstream edge 26a of the perforate portion 29 and the dry line 30. The dry line is preferably maintained #-5 in., more preferably ¢-3 in., downstream of the lip 17. The upper slice lip 17 and the headbox roof 19 may be adjustable to control the sizes of the slice opening and of the headbox throat.
Patent GB-180181-A (GB)
Title: Concrete building block
IPC: E04B2/42
Filed: 1921-04-28
Abstract: 180,181. Doherty, E. April 28, 1921. Building - blocks, special shapes of.-A building-block of concrete or other material is shaped as shown. The top and bottom are provided with grooves B, G and the ends, which are curved as shown at D, have vertical grooves C for cement. Passages E, F are provided.
Patent GB-192003-A (GB)
Title: Flour sifter
IPC: B07B1/20
Filed: 1922-05-01
Abstract: 192,003. Cmeyla, B. May 1, 1922. Fixed sieves.-A sifting device for flour or the like comprises an open-ended cylinder 1 containing the sifting elements and receptacles 8, 9 which engage the ends of the cylinder 1 so that handle parts 10, 11 thereon enclose a handle 2 on the cylinder. A shaft 3 passing through the handle 2 carries an agitating member 4 of wire loops or the like, which are rotated by a crank 12 to sift material through a fixed semi-spherical sieve 5. Graduations 13, either in pints or pounds, may be marked on the receptacles 8, 9. The device is preferably made of aluminium.
Patent GB-234101-A (GB)
Title: Optical-projection apparatus
IPC: G04B23/06
Filed: 1925-05-11
Abstract: 234,101. Lehmann, O. P. R. May 14, 1924, [Convention date]. Transparencies, travelling; optical-projection apparatus, applications of.-Slide - changing mechanism for optical-projection apparatus comprises two magazines 35 located one at each side of the lantern 17, and intermittently and alternately rotated so as to bring each slide S in succession into position for engagement bv a reciprocating rack 72, which moves the slide into the light beam and subsequently returns it to its own magazine. The magazines 35 rotate about stub shafts 33, and are provided with outer and inner channels 41, 40 which hold the slides S, and with slots 39 to receive lugs 42 on the slides. The rack 72 has two upwardly projecting studs 77 which take into notches 43 in the lugs 42, and is reciprocated by a member 66 carrying a gear wheel and moved to and fro by a rod 64 on a crank disc 62. The gear wheel engages the rack 72 and also a lower stationary rack, thus imparting to the rack 72 a motion having twice the amplitude of that of the member 66. The disc 62 is rotated through worm and pinion connection by a motor 26, intermittent gearing being introduced at 59, 60. The magazines 35 are rotated by pinions 81 engaging teeth on their inner rims, the pinions 81 being driven, through intermittent gearing 83, 84, by a skew gear 89 on an intermediate shaft 58 of the slide moving mechanism. The gearing is arranged so that when the rack 72 is moving the magazines 35 are at rest, and when a slide S has been brought into the display position, one of the magazines turns a step to present a fresh slide to the rack. The stock of slides S may be changed by removing the lantern cone 22, lenses 21, and a guide frame 74, whereby each slide may in turn be removed and replaced by another by hand as it is brought out by the rack 72. Hand-actuation of the mechanism is provided for this purpose, consisting of a handle 95 to turn the shaft 58 and a fixed toothed wheel 59 thereon, a one-way spring-pawl device between the wheel 59 and a loose wheel 57 on the same shaft cutting out the gearing to the motor 26. When one particular slide is to be shown alter. nating with others, one of the magazines 35 is substituted by a stationary holder containing the one slide only. A fan 28 on the motor shaft ventilates the lantern through an opening 29. The apparatus may be combined with a stereopticon machine for exhibiting pictures or advertisements.