baber/WOPTO huggingface dataset:
Patent GB-545780-A (GB)
Title: Amphibian armoured locomotive weapon or vehicle
IPC: F41H7/00
Filed: 1940-09-16
Abstract: 545,780. Armoured land-and-water vehicles. BEAVAN, J. Sept. 16, 1940, No. 14250. [Classes 79 (iii) and 79 (v)] [Also In Groups XXI and XXXIII] An armoured land-and-water vehicle comprises a closed durm 10 revolving on a fixed axle 11 secured to bifurcations 16, 17 of a closed body or cab 15, the vehicle being driven by an engine or engines 12, 13 secured to the axle 11 and enclosed in the drums and, steering being effected by means of pairs of trailing rollers 18, 19 steered from within the body. The periphery of the drum 10 is provided with skew cleats or ribs 20 arranged as shown. In the construction shown each engine drives the drum through gearing 24, 22, the gear wheels 22 being connected to the drum through arms 16 and links 28. The trailing rollers 18, 19 are provided with steering fins 18<SP>1</SP>, 19<SP>1</SP> and are mounted on steering columns having arms 42 connected by links 43 to the piston 44 of an hydraulic cylinder 45 controlled 'by electricallydriven pumps to move the piston and steer the rollers. The drum axle 11 is hollow and houses control and fuel supply tubes. Air is admitted to the engine through a pipe 32 at one end of the axle, and the exhaust gases escape through a pipe 33 at the other end of the axle. A fuel tank 35 in the body is connected by a pipe 36 to the engine and by a pipe 37 to an auxiliary supply in the rollers 18, 19. The engine cooling radiator 34 is mounted on the body. The engine units 12, 13 are slung from the axle 11 in cradles which can be rotated by an electric motor 49 through worm gearing 47 in order to adjust the metacentric height. The body carries a disappearing field gun or guns 38 and machine guns, and is provided with retractible periscopes 39. Ammunition is stored at 40, 41. The body can be sealed against gas, petrol or fire. Access thereto is by doors 50, 51.
Patent GB-214857-A (GB)
Title: Improvements in micrometer measuring or gauging apparatus
IPC: G01B7/12
Filed: 1923-05-30
Abstract: 214,857. Whiddington, R. May 30, 1923. Electrostatic meters.-In a micrometer gauging apparatus particularly for use in measuring differences in the diameter of a ball, a spring carrying one plate of a condenser is caused to bear upon' the object, and the dimension is measured by observing the electrical capacity between this plate and a stationary plate. The stationary condenser plate 9 is adjustably arranged below the condenser plate, which is mounted in an insulating bush 5 in a spring 3. A screw 4 passing through the spring 3 is adjusted to bear lightly on the ball 15, and the electrical capacity between the plates 8, 9 is observed. The ball is now moved to the new position, and should the diameter vary, the movement of the spring 3 will alter the capacity between the plates. The capacity may be restored to normal by turning a screw 12 which bears upon a thin extension spring 11, the change being ascertained by reading a scale on the head 14 against a fixed pointer. The scale may be calibrated as desired. The change in capacity is preferably noted by maintaining by means of a thermionic valve electrical oscillations of high frequency in a circuit comprising the plates 8, 9 and an inductance, and by listening to the beat note produced by combining the oscillations in this circuit with oscillations of constant frequency. The spring 11 may be omitted, and the comparison circuit arranged with an adjustable capacity or inductance by which it can be brought into unison with the circuit containing the plates 8, 9, the variation providing a measure of the dimension.
Patent GB-199381-A (GB)
Title: Improvements in packing and display devices for silverware and the like
IPC: A47G21/14
Filed: 1923-05-30
Abstract: 199,381. Oneida Community, Ltd., (Assignees of Lee, J. L.). June 9, 1922, [Convention date]. Packing silverware.-Spoons, forks, or like articles are secured upcn a support 2 having a coloured cloth, paper, or other facing by means of flexible metal strips 8 passing about the spoon &c. 7 and through one or more slots 11 in the support, and bent back behind the card, the strips being covered on one or both sides with a coloured cloth facing 10 which may match the facing on, the support. The. support 2 may be of yielding material such as paper board, and may be arranged in a bottom member 3 and a cover 1 forming a box. The strip 8 may be of tin or German silver, the facing material being secured' on each side by an adhesive free from sulphur compounds. In a modified strip, the edges are rounded and the facing material covers the edges and may be braided upon and around the strip.
Patent GB-745515-A (GB)
Title: Improvements in or relating to ceramic insulating material
Filed: 1952-06-06
Abstract: A ceramic consists of a sintered mixture of one or more of the titanates 2 CaO.TiO2, 3 CaO.2TiO2, 2 SrO.TiO2, and/or 3 SrO. 2 TiO2, 3 to 50 per cent of one or more of the titanates ZnO.TiO2, 2 ZnO.TiO2, CdO.TiO2 and/or 2 CdO.TiO2, and up to 10 per cent of a sintering agent, e.g. clay.  Specification 23683 /49 as open to inspection under Sect. 91 is referred to.
Patent GB-576403-A (GB)
Title: Improvements in adjustable stays for vehicle windshields
IPC: E05C17/26
Filed: 1944-07-27
Abstract: 576,403. Windshield stays. WORCESTER WINDSHIELDS & CASEMENTS, Ltd., and JONES, A. E. E. July 27, 1944, No. 14320. [Class 65 (i)] A stay 4 is pivoted at 8 to a fixed bracket 2a and has a pin 15 which slides in a slot 16 when a windshield 5 is opened. A slot 9 is provided in the outer of two plates 1, bent over at 3, and a clamping screw 10, which is secured to the stay, has a wing-nut 11 to fix the stay in the required position of the windshield. The nut has a coned bottom which engages a recess 12. Instead of a front plate 1, a curved arm, containing the holes 12, is attached to the back-plate. A slot 13 is provided for assembly purposes.
Patent GB-1063497-A (GB)
Title: Reductive dimerisation of olefinic compounds
IPC: C07C69/34
Filed: 1965-04-05
Abstract: An a ,b -olefinically unsaturated nitrile or ester is reductively dimerized by bringing an alkali metal or alkaline earth metal amalgam into interaction with a reaction medium containing the nitrile or ester, a salt that provides alkylated cations in the reaction medium, and an agent such as water or an alcohol that can donate active hydrogen and co-operates with the amalgam to provide an amalgam reduction system.  Suitable starting materials are acrylonitrile and alkyl - substituted acrylonitriles ("alkyl" having up to 4 carbon atoms and including alkenyl and alkynyl with the unsaturation not adjacent to the acrylonitrile double bond), and mono- and di-carboxylate esters.  The salts used may be alkylated ammonium, phosphonium or sulphonium salts. Inorganic salts such as CrCl3 or Na2CrO4 may be added as promoters.  Polar solvents, such as dioxane, acetone, dimethylformamide or ethylene glycol, and polymerization inhibitors, such as N1N-dimethyl p-nitrosoaniline, may be present. When using alkali metal amalgams the constant addition of an acid or CO2 is required. Ambient temperature is preferred.  Examples prepare adiponitrile, 3,4-dimethyl adiponitrile and diethyl adipate.
Patent GB-745885-A (GB)
Title: Thread-processing reel
IPC: D01D10/04
Filed: 1954-05-17
Abstract: 745,885. Drying thread. COURTAULDS, Ltd. May 17, 1954 [May 18, 1953], No. 14346/54. Class 34(1). A thread advancing, thread-drying reel comprising two reel members 8, 9 having axes offset and askew and having peripherally interdigitating bar members 10, 11, has an enclosed chamber 18 through which steam is circulated and an inlet 35 and outlet 36, the chamber 18 being tapered, increasing in diameter from inlet to outlet. The reel shaft 15 is hollow and contains a hollow tube 38 through which steam is conducted to chamber 18 through radial inlets 35, exhaust steam and condensate being exhausted through outlet 36 and the annular space between shaft 15 and tube 38, the taper of chamber 18 causing the condensate to flow rearwardly for removal. In a modification a number of radial outlet passages are provided. Specifications 413,414, [Group IX], is referred to.
Patent GB-757143-A (GB)
Title: Electric supply system for electrolytic grinding
IPC: B23H5/08
Filed: 1954-05-17
Abstract: 757,143. Automatic control systems for electrolytic grinders. BOART PRODUCTS SOUTH AFRICA, Ltd. May 17, 1954 [Sept. 21, 1953], No. 14402/54. Class 38 (4). [Also in Group XXXVI] The D.C. supply to an electrolytic grinder is controlled (a) so as to maintain a maximum current without arcing or sparking, and (b) to prevent the electrode voltage rising on opencircuit. The diamond-loaded grinding-wheel and workpiece, Fig. 1 (not shown), are immersed in an unspecified electrolyte and are supplied by lines 94 from a rectifier 456, the workpiece forming the anode. High-frequency components of the electrode current produced if arcing occurs are detected by shunt 96, amplifier 403, high pass filter 405, 406, 407, 408, and diode 410 to produce a bias voltage across potentiometer 412. The supply voltage is opposed by a reference voltage produced across a potentiometer 428 by rectifying the output of an auxiliary transformer 420. Any resultant error voltage then appears additively in series with the signal voltage tapped off potentiometer 412. An additional adjustable bias voltage is tapped off potentiometer 433. The sum of these voltages control the parallel connected pentodes 444 which control the saturation of reactors 451 in the A.C. supply to the main rectifier 456. In a modification, Fig. 2 (not shown), the voltage control is omitted, the arcing is detected by current transformer instead of a shunt, and the resulting bias signal controls reversely connected pairs of thyratrons which are in series with the A.C. supply to the main rectifier. In a further modification, Fig. 3 (not shown), the thyratrons of Fig. 2 are replaced by plasmatrons.
Patent GB-282338-A (GB)
Title: Improvements in serving trays
IPC: A47C7/68
Filed: 1927-05-28
Abstract: 282,338. Benjamin Electric, Ltd., (Assignees of Benjamin, R. B.). Dec. 17, 1926. [Convention date]. Trays of the kind having a grooved peripheral rim 13 are provided with a bent wire support 17 which engages in the rim and is formed with vertical portions 14 so as to support the tray in an horizontal position when placed on the user's knees or an inclined support.
Patent GB-612158-A (GB)
Title: Improvements in electric signalling systems
IPC: G08B5/22
Filed: 1946-05-13
Abstract: 612,158. Indicating occupancy of vehicle seats. SWEET, S. A., and WILKINSON, D. F. May 13, 1946, No. 14439. [Class 40 (i)] [Also in Group XXXVII] In a system for indicating the number of seats vacant in a vehicle, switches on the individual seats are connected to an electromagnetic stepping mechanism and to fixed contacts of a continuously-operated distributing switch, the moving contact of which applies impulses to the stepping mechanism in accordance with the number of vacant seats. As shown, arm 21 connected to one side of a current source, is rotated over contacts 20 by a continuously running motor 22 and whenever a pair of contacts 5, 6, of which there is a pair in each seat, is closed at the time the arm 21 passes over the corresponding contact 20, an impulse is imparted to coil 17 for moving the ratchet-wheel 31 which is coupled through a dog-clutch to a second ratchet-wheel 47 driving the drum 46, indicating the number of vacant seats. After traversing all the contacts 20, arm 21 reaches contact 32, energizing coil 34 to release pawl 52 of ratchet-wheel 47. If the number of seats vacant as denoted by the number of pairs of contacts 5, 6, closed is equal or more than for the previous rotation of arm 21, wheel 47 ,and hence drum 46 are correctly positioned, but if the number of seats is less than previously indicated, the coupling between wheels 31, 47 returns wheel 47 and drum 46 to the appropriate position as denoted by wheel 31. Finally, at contact 35, coil 36 is energized and wheel 31 returned to its zero position, leaving the drum still indicating the number of vacant seats. A duplicate system may be employed in the case of a double-deck vehicle, and the apparatus can be rendered inoperative when travelling at full speed.
Patent GB-143896-A (GB)
Title: Improvements in and connected with the mounting and attachment of aircraft engines
IPC: B64D27/00
Filed: 1920-05-27
Abstract: 143,896. Daimler-Motoren-Ges. July 16, 1917, [Convention date]. Propelling.-An engine d is attached to an aircraft body by means of a funnel-shaped member a the rear end b of which is of the same crosssection as the body and is secured thereto so that the stresses resulting from the reaction of the propeller are uniformly distributed over the body. The engine is mounted on ledges c along the inside of the member a. The front end of the member a may be stayed to the body by struts i. In a modification, the engine is connected to the front end of the member a.
Patent GB-484038-A (GB)
Title: Improvements in or relating to methods of and apparatus for reproducing or re-recording recorded sound
IPC: G11B7/00
Filed: 1937-05-25
Abstract: 484,038. Sound reproducing and rerecording. BRITISH OZAPHANE, Ltd. May 25, 1937, No. 14534. Convention date, May 29, 1936. [Class 40 (ii)] " Noiseless " reproduction or re-recording is obtained from a " non-noiseless " variable area film record by projecting on the film 14 from a source 1, a beam of light illuminating a length 3, 4 of the film at least equal to one wave length of the lowest frequency to be reproduced or re-recorded, reflecting the light back, for example by a concave mirror 6, to a, second equal length 3<1>, 4<1> of the film adjacent the first length and oppositely directed, diffusing the light between the mirror and the second length of film in the longitudinal direction only for example by a diffraction grating 8, and finally throwing the beam by an objective device 9 on to a photo-electric cell 13 for reproducing or re-recording the sound. If the film is an opaque reflecting one, all the optical devices are on the same side of it. A film having a track of uniform width can also be used, the two edges of the track being treated separately and their effects combined in push-pull fashion.
Patent GB-202598-A (GB)
Title: Improvements in and relating to the manufacture of road surfaces and the like
IPC: E01C7/18
Filed: 1922-02-03
Abstract: 202,598. Prodor Soc. Anon., and Levy, M. Feb. 3, 1922. Compound or composite bricks and blocks.- Pitch concrete according to Specification 201,650, [Class 22, Cements &c.], is laid on a prepared foundation or sub-crust and coated with a thin carpet of asphalt or other resilient substance after it has solidified but while still hot. Alternatively, the concrete may be formed into blocks with a thin coating of asphalt &c. on the wearing surface, or the coating may be cast after the blocks have been set in position.
Patent GB-756145-A (GB)
Title: Improvements in or relating to saws
Inventor: BOOTH CHRISTOPHER HODGSON
IPC: B27B33/02
Filed: 1952-06-11
Abstract: 756,145. Saws. FIRTH-BROWN TOOLS, Ltd. Sept. 11, 1953 [June 11, 1952], No. 14757/52. Class 145 A straight or circular saw with a number of cutting edges which are separated by swarf-receiving gullets or recesses has, for each or some of the cutting edges, a non- cutting rubbing surface ahead of the gullet, this surface being a few thousandths of an inch below the cutting edge and bearing on the work cut by a preceding edge so as to limit the depth to which the edge can enter into the work. The rubbing surface may be constituted by the whole or part of a groove 17 swaged in a heel portion 16 of the tooth behind the cutting edge 14 and the side edges are sharpened so that they cut slits in the work, the material between the slits being removed by the succeeding cutting edge. Alternatively plain ungrooved heel portions may be provided or the heel portions of successive teeth are alternately bevelled and, if necessary, set to form single longitudinally  extending cutting edges 16a, Fig. 5, alternately on opposite sides of the saw; the  sides of the bevels may constitute the rubbing surface or such surfaces may be provided at their roots.
Patent GB-257358-A (GB)
Title: Improvements in or relating to ships' hatches
IPC: B63B19/18
Filed: 1925-06-08
Abstract: 257,358. Thomas, R. E., and Billetop, T. C. June 8, 1925. Hatches and hatchways. - The slidable hatch webs or beams are provided with end rollers which work between upper and lower guides carried by the coaming. The beam A comprising the central web plate a, Fig. 5, and top and bottom angles a<2> is provided with rollers F which work in the guides E<1> riveted to the hatch coaming B. The beams carry other vertically-mounted rollers G which bear against the vertical faces of the guides E which are provided with lips e<4> which prevent lateral displacement of the beams. The beams are held in their spaced position by pins P which pass through holes in the guides E and in the bracket which supports the roller F. The hatch beams, when the hatch ways are in use, may be stowed on a bracket supporting an extension of the hatch coamings. In modifications, a second set of rollers may be provided working on an upper set of guides; or the guides may be arranged outside the hatch coaming, and the spindles of the rollers may work in a slot cut in the coaming which may be strengthened by a member encasing the interior of the spindle. According to the Provisional Specification, the hatch beam may be pivoted to the hatch coaming.
Patent GB-518466-A (GB)
Title: Improvements in or relating to gas or vapour electric discharge devices
IPC: H05B33/00
Filed: 1938-05-18
Abstract: 518,466. Glass. FODOR, J. May 18, 1938, Nos. 14852 and 33845. [Class 56] [Also in Group XL] Glass full of small cavities to act as discharge lamps is formed by spraying the molten glass from a chamber 9 into a chamber 1 into which gas is introduced from vessels 4 through a regulating valve 6. Specifications 447,805, 486,623 and 490,168 are referred to.
Patent GB-323445-A (GB)
Title: Improvements in or relating to chapelets
IPC: B22C21/14
Filed: 1929-05-13
Abstract: 323,445. Sonnet, E. May 13, 1929. Chaplets, capable of adjustment, consist of pairs of similar wedge members a, Fig. 3, made from T-section strip by cutting, as shown in Fig. 4, and bending. Each wedge is preferably symmetrical about the line e bisecting the angle formed by the two faces d.
Patent GB-492985-A (GB)
Title: Improvements relating to the manufacture of metal-coated surfaces
IPC: C08J7/06
Filed: 1937-05-28
Abstract: The pretreatment with organic silicate solutions described in the parent Specification with reference to the metallizing of glass and phenolformaldehyde resins is used in the coating of other synthetic resins such as urea and cresol formaldehydes, and methylmethacrylate, e.g. that known under the Registered Trade Mark "Diakon," and in the coating of cellulose acetate.  The articles may be degreased and/or polished, e.g. with alcohol or ether, prior to the pretreatment. When coating by deposition in a high vacuum, the articles to be coated may be subjected to a vacuum oven treatment.
Patent GB-697930-A (GB)
Title: Improvements in pulley sets for use with conveyors
Inventor: THOMSON CHARLES
IPC: B65G39/16
Filed: 1951-06-22
Abstract: 697,930. Endless-belt conveyers; pulleys. CABLE BELT. Ltd. May 21, 1952. [June 22, 1951] No. 11924/5). Classes 78 (i) and 78 (v). In conveyers of the kind in which a belt is supported by cross-members extending between two parallel endless ropes 47 and the ropes are supported between the ends of the conveyer by pulley sets mounted on stands, each set comprises a base 10 supporting a pair of spaced vertical standards 13, a bracket member 16 rotatably mounted on each standard, a pulley shaft or shafts 25, 26 extending between the bracket members and pivoted to them, and two spaced pulleys 29, 31 rotatably mounted on the shafts. Each bracket 16 comprises a flat metal plate 17 having spaced apertured members 18, 19 projecting from one edge to engage a standard and aligned vertically spaced pins 21. 22 welded to the opposite edge and having reduced ends 23 to engage apertures in the shafts. The base 10 consists of side members 12 of angle-section and a cross-member 11  of inverted channel section. The pins 22 extend below the upper edges of the vertical flanges of the members 12 to limit the rotation. The boss 33 Fig. 4, of each pulley is supported on its spindle by ball bearings 35, 36, the inner race of the bearing 36 being located by a shoulder 37 on the spindle and the inner race of the other bearing being located by a spring ring 38. The outer races are separated by a spacing sleeve 39 and held in place by plates 41, 42 bolted to the boss. Grease passes to the bearings from a nipple 44 through passages 45, 46.
Patent GB-1432444-A (GB)
Title: Nuclear fuel elements
IPC: G21C3/28
Filed: 1973-03-28
Abstract: 1432444 Fuel elements UNITED KINGDOM ATOMIC ENERGY AUTHORITY 18 March. 1974 [28 March 1973] 14984/73 Heading G6C A nuclear fuel element comprising compacted nuclear fuel located in channels defined by a block of solid material, e.g. graphite, is made by forcing a pasty mixture 5 of nuclear fuel and matrix material into the channels 3 by way of elongated nozzles 6 penetrating each channel 3 for substantially its full length, so as to cause divergent movement between the block 2 and the nozzles 6 as the channels 3 fill with the mixture 5, after which the mixture 5 is heat-treated. Additional channels 4 in the block 2 are adapted to conduct reactor coolant through the block. The mixture 5 comprises nuclear fuel particles and a matrix material consisting of liquid binder (furfuryl alcohol) and soft graphite powder. The fuel particles consist of UO 2  kernels coated with layers of fission product-retaining pyrocarbon with a fission product-retaining layer of silicon carbide between the. outer layers of pyrocarbon. The particles may be "overcoated" with a thick layer of soft graphite. The nozzles. 6 extend upwardly from an extrusion chamber 8a in which is located an upwardly-acting piston 10a. Before extrusion takes place, the chamber 8a is filled by way of a filling port 15 fitted with a removable cover-plate 16, also the upper ends of the channels 3 are sealed by graphite plugs 11. As pressure is applied to the piston. 10a, the block 2 rises as the channels 3 gradually fill up. A particular advantage of this invention is that air is excluded from the channels 3 as they are filled. Heat treatment of the fuel element is used to remove binder material, drive off any H 2  that may be present and to carbonize the fuel and its surrounding matrix. The fuel element is heated at 900‹ C. for 1 hour in a N 2  atmosphere followed by degassing at 1800‹ C. under vacuum.