baber/WOPTO huggingface dataset:
Patent GB-1307605-A (GB)
Title: Photoconductive material comprising ternary alloy of cadmium selenium and mercury
IPC: C22C28/00
Filed: 1970-03-10
Abstract: 1307605 Cd-Hg selenide composition MATSUSHITA ELECTRIC INDUSTRIAL Co 10 March 1970 [14 March 1969] 11347/70 Heading C7A [Also in Division H1] Photo-conductive material comprises a crystalline alloy of the general formula:- Wherein x is between 0 and 1, doped with Cu or Ag as an activator and Al, Br, Cl, Ga, I or In as a co-activator. The material may be made by firing a mixture of Cd, Hg and Se, in compound or elemental form, and simultaneously or subsequently doping the alloy formed with the activator and co-activator. The initial mixture of Cd, Hg and Se may be fired at 700-800‹C. under an inert gas pressure of 70-100 atm. and the product refired at 1100-1200‹C. with an inert gas pressure of 70-100 atm.
Patent GB-1457133-A (GB)
Title: Manufacture of chuck key bodies
IPC: B21K1/30
Filed: 1973-03-08
Abstract: 1457133 Making chuck key bodies; forging; chucks; extruding; nipping cutters BAR PRODUCTIONS (BROMSGROVE) Ltd 13 Feb 1974 [8 March 1973] 11393/73 Headings B3A B3H B3P B3B and B3W A chuck key body with a bevel gear 4 and an integral spigot 3 is made by cold forging a preformed blank between dies 8, 9, Fig. 4C. The blank is formed by cutting a slug from bar stock and by extruding and upsetting the slug in successive steps, Fig. 4A, 4B, to form a spigot 14 and an enlargement 16. The forged blank has its flash trimmed between dies 8, 9, Fig. 4D, provided with a cutting edge 23. The extruding, upsetting, forging and trimming steps are performed simultaneously on a series of blanks which are transferred step-by-step through the die sets 8, 9. Each die set has ejectors 10, 11 which move together to raise the blank for gripping by a transfer device. The preformed blank may be produced in one or more than two steps. The gear teeth are joined by an integral web 7, Fig. 1.
Patent GB-114957-A (GB)
IPC: A61M11/02
Abstract: 114,957. Tompkin, A., and Boot's Pure Drug Co. Aug. 14, 1917. Air-pressure sprayers.-In medical atomizers of the kind in which a, closed vessel is employed provided with a spraying-nozzle and with a connexion whereby it may be placed in communication with a source of pressure, means are provided for introducing a thermometer without removing the lid, or the thermometer may be attached in a removable plug. or the thermometer may be permanently attached to the cover. A vessel a, provided with a handle e, has an airtight cover c provided with an opening for the reception of a thermometer, the opening being normally closed by a screw cap h<1>. The cover is clamped by means of a nut e' engaging a stud e soldered to the bottom of the container. The apparatus is provided with an air inlet, a spray - ing-outlet, and a relief valve j.
Patent GB-1493024-A (GB)
Title: Valve chests
IPC: F01L3/08
Filed: 1975-03-20
Abstract: 1493024 Valve chests SOC D'ETUDES DE MACHINES THERMIQUES 20 March 1975 11556/75 Heading FIB An overhead valve chest, for an I.C. engine, comprises a cylindrical portion 6, a frusto-conical seating portion 5 and a groove 7 which receives a sealing ring 8, the groove being positioned axially so that one wall of the groove intersects the cylindrical portion 6 and the other wall intersects the frusto-conical portion 5. The axial position of the groove is such that the diameter of the wall which intersects the frusto-conical portion is large enough to prevent the ring projecting beyond the edge created by the intersection even when the ring is radially displaced to the greatest extent permitted by the difference between the inside diameter of the ring and the diameter at the bottom of the groove. This prevents the ring being trapped during assembly. The external edges of the ring are chamfered.
Patent GB-1423339-A (GB)
Title: Oxidation of olefins
IPC: B01J23/76
Filed: 1972-03-13
Abstract: 1423339 Epoxides IMPERIAL CHEMICAL INDUSTRIES Ltd 15 Feb 1973 [13 March 1972] 11592/72 Heading C2C [Also in Division B1] An olefinic compound is oxidized to an epoxide by passing it in the vapour phase with oxygen at a temperature below 300‹ C. over a solid material comprising a copper compound, which is capable of being oxidized by the oxygen, separating the epoxide from the vapour products, reductively regenerating the solid material in which the copper has undergone oxidation, reusing the regenerated material for the production of epoxide and periodically regenerating it; and separating further amounts of epoxide formed, the solid material containing also an inorganic compound selected from metal oxides and other compounds of metals of Group II to IV and Periods 2-6 of the Periodic Classification such compounds being neither substantially acid nor substantially alkaline. Examples describe the oxidation of propylene to propylene oxide using catalysts comprising copper molybdate and titanium compounds.
Patent GB-789071-A (GB)
Title: Electrode for electric discharge tubes
IPC: H01J1/26
Filed: 1954-04-22
Abstract: 789,071. Cathode constructions. LUMALAMPAN AKTIEBOLAG. April 22, 1954 [April 24, 1953], No. 11683/54. Class 39(1). Electrode for discharge tubes, particularly fluorescent lamps, has a carrier for electronemissive material comprising a core of coiled wire and a wire coil of the same wire diameter, coil diameter and pitch as the core coil wound on the core to form a coiled coil on the envelope of the core coil. The core and the coil wound round it may consist of two or more coiled wires, which in the case of two coiled wires can be wound in opposite directions. The core and the coil wound round it can be completely filled with emissive material, e.g. 6 mgs. of BaCOs, with the possible exception of the ends of the carrier which can act as anode extensions when the electrode serves as anode. In an example of forming the electrode a tungsten wire is wound on a molybdenum mandrel and another tungsten wire of the same diameter and pitch is wound in the opposite direction. The coil so formed is divided into two parts, one for the core and the other for the coil wound round it, which are subjected to the normal annealing and mandrel dissolving processes. Dimensions are given.
Patent GB-775671-A (GB)
Title: Improvements in or relating to pit props and their manufacture
IPC: E21D15/38
Filed: 1954-04-23
Abstract: 775,671. Pit props, REPPEL, W. April 23, 1954 [April 23, 1953], No. 11768/54. Addition to 721,507. Class 20(2)  The telescopic pit prop of the parent Specification comprising inner and outer members each formed of angle iron sections 1, 1<SP>1</SP> and 2, 2<SP>1</SP> respectively facing one another and adapted to be locked together by a transverse wedge 8 and drag wedges 7, is modified by providing a ring 11 resting on studs 12 half way up the inner member and which supports the angle irons 1, 1<SP>1</SP> against buckling. The wedge 8 has stops 10 to ensure uniform clamping force. The resilience of the clamping members is increased by slots 13 in the wedges 7.
Patent GB-591525-A (GB)
Title: Improvements in floor constructions
IPC: E04B5/23
Filed: 1945-05-11
Abstract: 591,525. Floors. TROCME, R. E. May 11, 1945, No. 11877. [Class 20 (iv)] In a reinforced concrete floor of the kind formed of a plurality of hollow concrete units a, each comprising two members b, c of channel section placed with their open faces in contact, the adjacent faces of the units are inclined to the vertical to form downwardly tapering recesses e which are filled by and act as anchorages for the concrete forming the floor surface f, which is reinforced by transverse rods h overlying the units a. Further anchorages may be provided by forming Vee-section joint n between the members b, c at their upper meeting edge. The upper and lower walls of the members b, c may be formed as shown to taper towards the meeting edges of the members. The units are reinforced by longitudinal bars d. A ceiling may be formed by plastering the continuous surface formed by the lower edge of the units. The tapered faces of the units may be ragged as shown at g and the upper and lower faces similarly notched to form keying for the concrete or plaster.
Patent GB-142495-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H19/32
Filed: 1920-04-29
Abstract: 142,495. Gallo, G., and Villarboito, F. April 29, 1919, [Convention date]. Switches, quick-action; spring-straining arrangements; contacts.-Quick-action mechanism for a rotary-contact switch operated by a push-button or by a turn-knob eomprises a disk 7 rotated by the operating member and formed with an eccentric cam slot 8 engaging a pin 9 sliding in a radial slot 10 in the bridging contact member 3. One end of a spiral driving-spring is secured to the contact member and the other end to the disk 7. The contact member 3 is held in its contact and non-contact positions by the engagement of the pin 9 with notches in a stationary disk 6. When the disk 7 is rotated by the actuating means, the spring is strained until the cam slot 8 moves the pin 9 to the outer end of the slot 10 thereby releasing the contact member which moves rapidly to the next position. In the form shown in Fig. 1, the switch is operated by a retractive press-button 13 having a square stem 4 formed with a twisted portion 5 which, when pressed through a square hole in the disk 7, causes rotation of the disk, the stem being prevented from rotating by passing it through a square hold in a ratchet disk 16 which can rotate in one direction only. For operation by a turnbutton, the desk 7 is fixed upon the turning stem. The fixing means for the leads, and the fixed contacts 2 are integral with one another, as shown.
Patent GB-805766-A (GB)
Title: Improved hook assemblies for the strainers of vehicle luggage carriers
IPC: B60R9/058
Filed: 1956-04-19
Abstract: 805,766. Hooks; clamps. PETERS, E. F., and PETERS, H. G. C., [trading as FRANK BROS., Ltd.]. April 18, 1957 [April 19, 1956], No. 11956/56. Classes 44 and 89(2) [Also in Group XXXII] A hook 2 of a luggage - carrier strainer engages a support 3, e.g. a vehicle rain gutter, and is locked thereto by a plate 7 clamped by a nut 9 and screw 8 against the inside of the support. Specification 739,327 is referred to.
Patent GB-1489804-A (GB)
Title: Light equalizer method and making same and optical system using same
IPC: G02B6/032
Filed: 1975-03-21
Abstract: 1489804 Lighting fittings ENVIRONMENTAL RESEARCH & TECHNOLOGY Inc 21 March 1975 [5 April 1974 (2)] 11969/75 Heading F4R An optical system including an optical device, such as an interference band-pass filter, having a transmission characteristic which is dependent on the angle of incidence of input radiation comprises an optical equalizer designed to produce a substantially uniform light intensity across its output aperture irrespective of intensity variations across its input aperture, and means for collimating the light emitted by the equalizer and directing it to the device. The equalizer may be of the type disclosed in Specifications 1,489,805 or 1,489,806 or alternatively may consist of powdered material suspended in a light transmissive liquid.
Patent GB-1306273-A (GB)
IPC: G03G5/07
Filed: 1970-03-12
Abstract: 1306273 Electrophotographic element ADDRESSOGRAPH-MULTIGRAPH CORP 12 March 1970 [4 April 1969] 11971/70 Heading H1K An electrophotographic element comprises a polyester substrate having coated thereon a conductive polymeric layer and a photoconductive layer wherein the conductive polymeric layer is poly - N,N - dimethyl - 3,5 - methylene piperidinium chloride, the dipotassium salt of a copolymer of styrene and maleic anhydride or a polymeric vinylbenzyl quarternary ammonium compound and the photoconductive layer is poly-N-vinyl carbazole or poly-N-vinylbenzocarbazole. The conductive polymeric layer has a surface resistivity less than 10<SP>10</SP> ohms per square and the element has alight transmittance greater than 1% of incident radiation and less than 10% differential in light transmittance between two given areas on the photoconductive surface. Donor complexes of polyvinylcarbazole may be used. The polymeric ammonium compound may be a homopolymer or a copolymer with acrylamide or divinylbenzene. The conductive polymer is preferably applied as an aqueous alcoholic solution to the substrate.
Patent GB-702478-A (GB)
Title: Improvements relating to a machine for cutting external splines
Inventor: RICHARDSON JAMES ALFRED
IPC: B23D3/02
Filed: 1951-05-23
Abstract: 702,478. Planing. NUFFIELD TOOLS & GAUGES, Ltd. Aug. 1, 1952 [May 23, 1951 ; Sept. 5. 1951 ; Sept. 25, 1951], Nos. 12026/51, 20932/51 and 22371/51. Class 83 (3) A machine for cutting external splines comprises means for relatively reciprocating the work and a set of pivotally-mounted form tools 5 to which an intermittent feed is imparted by an annular cam-plate 10 advanced at each idle stroke by a ratchet wheel 15, and means 25 for moving the tools simultaneously at the end of each cutting stroke to form a radius on the work. The work (not shown) is held at one end by a spring-pressed centre 1 and is reciprocated by a crank mechanism (not shown). The latter is driven concurrently with a cam mechanism which, through a push-rod 25, pivoted arms 21, a rod 19 and a lever 18, intermittently depresses a plunger 17 to advance the ratchet wheel 15. The ratchet rotates a worm 13 meshing with a wormwheel 12 carrying the cam-ring 10 which feeds the six tool-slides 7 against the pressure of springs 57. The tools 5 are adjustable initially by screws 6.' The radius at the end of each spline is cut by depressing the cutters through a sleeve 35 and bearing 38, the sleeve being moved by the rod 25. When the final cut has been taken, one of six projections 52 on the wormwheel 12 contacts a plunger 53 to withdraw a locking plunger 59 from a disc 61 and to actuate a microswitch 56 and stop the machine. The disc 61 carries a pin 64 engageable with a pin 65 on a lever 66 and is turned by a handle 63 to rotate the wormwheel 12 and position the tools so that they will take a set cut when the machine is again started. The depth of the initial cut is determined by releasing a plunger 67 from a toothed wheel 69 and re-engaging it in a new position. Dash-pots.-The movement of the cutters is damped by a dash-pot 47. Cooling and lubricating tools and work.- Coolant is supplied through an inlet 36 to the interior of the sleeve 35 and passages in a bush 33. According to the Provisional Specification 12026/51, the tools may be moved to cut the radius by pins projecting from the machine bed. Each tool is then held in its relieved position, according to Provisional Specification 20932/51, by a spring and fibre-disc friction-brake until it is positively returned to the cutting position at the end of the idle stroke. According to Provisional Specification 22371/51, the tools may be moved to cut the radius by a hydraulicallyoperated piston.
Patent GB-723678-A (GB)
Title: Electric motor driving arrangement
IPC: H02P5/68
Filed: 1953-05-13
Abstract: 723,678. Control of two motors. POLLOPAS PATENTS, Ltd. (Oster, L. E. W., Montrose-). May 13, 1953 [May 13, 1952], No. 12093/52. Class 38 (3). Dynamo-electric machines 1, 2, are mechanically coupled to the input members of a differential gear, and when the machines operate as motors at their normal speed they drive the input members in opposite directions so that the output member of the differential remains stationary. The respective field windings 17, 18, are supplied from a source of direct-current at constant potential, whilst the armatures are connected to variable voltage sources represented by individual directcurrent generators 22, 23, which are driven at constant speed. The field rheostats of the generators are adjusted by levers 24, 25, which are interlocked so that the voltage of one generator is increased upon a decrease of voltage delivered by the other generator. The generators 22, 23, may be replaced by rectifiers or other sources of variable voltage. Thus, the output member of the differential is started and accelerated by increasing the speed of one machine and decreasing that of the other, the slower machine acting as a generator to restore energy to the current source. Deceleration may be obtained by gradually restoring the armature voltages to the values corresponding to the stationary condition of the output member, or by reducing the terminal voltage of the machine acting as a generator and then reducing the potential applied to the machine operating as a motor. Another method of deceleration is to invert the functions of the machines so as to produce a powerful torque opposing the movement of the output member. In a modification, Fig. 4 (not shown), the machine 2 is replaced by a threephase synchronous motor. The application to ship-stabilizing equipment, rolling machines, and hoisting apparatus is mentioned. Specification 689,682 is referred to.
Patent GB-457198-A (GB)
Title: Process for the destructive hydrogenation of coal
IPC: C10G1/08
Filed: 1935-04-23
Abstract: The destructive hydrogenation of solid carbonaceous materials is carried out by impregnating the materials, prior to the treatment, with aqueous solutions of soluble compounds of iron or with finely divided metallic iron and also adding a base, more particularly an alkali, in dissolved form, e.g. solutions of sodium carbonate, potassium or sodium hydroxides, sodium sulphide, milk of lime, ammonia, ammonium carbonate, ammonium sulphide.  Bivalent compounds of iron are particularly suitable, e.g. the halides or ferrous sulphate.  Cobalt and nickel compounds may be used with the iron compounds.  The finely divided iron is used in the form of iron sponge or iron powder obtained by the decomposition of iron carbonyl or reduction of iron oxide.  The iron powder may be pretreated with alkali or hydrogen and may be applied on carriers, e.g. active coal, silica gel, bleaching earth, &c., which may be pretreated by acids or by heating.  In an example (1) 100 kgs. of finely broken brown coal are mixed in a mixing worm with a solution of 640 grams soda in 2,5 kgs. water. To the mixture is added a solution of 900 grams ferrous sulphate in 2,5 kgs. water and the whole mass is dried, ground with oil to a paste, and subjected to destructive hydrogenation under the usual conditions.  A 96 per cent conversion of the coal is obtained. In an example (2) Brown coal impregnated with 0,54 per cent sodium hydroxide is dried, mixed with 0,3 per cent iron powder, and made into a paste with an equal proportion of heavy oil obtained in the process.  The paste is destructively hydrogenated at 450 DEG  C. and 200 atmos.  A 98 per cent conversion of the coal is obtained, 95 per cent of the liquid constituents boiling below 325 DEG  C.  Ferrous chloride or a mixture of ferrous chloride and cobaltous chlorides may be used instead of ferrous sulphate.  Specifications 346,689 and 406,986 are referred to.
Patent GB-103106-A (GB)
Title: Improvements in and relating to Illuminating Apparatus.
Inventor: DAVIS WILLIAM JESSE
IPC: F21S8/00
Filed: 1916-08-29
Abstract: 103,106. Davis, W. J. Jan. 3, 1916, [Convention date]. Electric-lamp lanterns; search-lights; lantern cowls. -In a lantern for illuminating grounds, large buildings, streets, &c., a reflector is attached to an axial rod adjustable in a bearing at the back of the lantern. An incandescent electric lamp, which may be of the gas-filled type, may be placed with its filament on the axis of and between the focus and the surface of the reflector. Adjustment of the lamp is provided for. The lamp-holder consists of an inner lamp-receiving socket 59, and an outer shell 58. The shell fits in a cylinder 57 attached to a box 54 on the top of the lantern, and, being made of yielding material and tapered towards its lower end, can be rotated, raised or lowered, or canted slightly, to adjust the lamp, and is then clamped by a screw 64. The leading-in wires should be turned away from the reflector 50, and the front filament-sections may fill the spaces between the back sections when viewed along the focal axis. A small reflector is preferred, for instance one having a focal length of 4¢ in. It may be parabolic The filament is preferably ¢ in. from the focus. By drawing back the reflector, the lantern is adapted for use as a search-light. The back and the glazed front of the lantern are made with flanges to fit over rings on the lantern casing, and are secured by bayonet-slots and screws. Air for cooling enters through holes in the bottom of the casing from a cover 68 having apertures at its upper edges masked by depending baffles. A strengthening-piece is attached to the casing between the holes. The heated air escapes partly over baffles 53 and through holes in the box 54, and partly through holes in the outer lamp-holder shell 58, which is surmounted by a hood 60. The lantern is pivoted by means of lugs and adjustable friction studs to a yoke 41 on a post 40.
Patent GB-1136576-A (GB)
Title: Improvements in or relating to vehicle suspensions
IPC: B60G21/055
Filed: 1966-03-21
Abstract: 1,136,576. Vehicle suspensions. SOC. APPLICAZIONI GOMMA ANTIVIBRANTI S.p.A. 21 March, 1966 [4 Jan., 1966], No. 12253/66. Heading B7D. A vehicle suspension comprises a hollow tube 10, welded to the frame 11 and a pair of longitudinally disposed arms 15 upon which the wheels are mounted, the arms 15 being attached by elements 14 to metal tubes 13 supported within tube 10 by rubber torsion elements 12. The torsion elements 12 are bonded to the tubes 13, and force-fitted within the tube 10. In a modification, a stabilizing tube 20, Fig. 2, may be connected to the tubes 13 by rubber torsion elements 21 which are bonded to the tube 20 and force-fitted within the tube 13.
Patent GB-250044-A (GB)
Title: Improvements in looms for weaving fabrics for collars
IPC: D03D1/00
Filed: 1925-05-11
Abstract: 250,044. McCarrel, A. H. May 11, 1925. Fabrics with curved wefts, looms specially designed for.-In order to weave a flat fabric having curved wefts for use in making soft or semi-soft turned-down collars, a loom is provided with a curved reed comprising dents held between upper and lower ribs secured to a curved reed and lav cap. In the form shown in Fig. 2, the lay, reed, and shuttle boxes are curved so that the shuttle travels in an arcuate path. The shuttle is shaped on its rear side to fit the front side of the shuttle box back, and the picking-spindles are also curved.