baber/WOPTO huggingface dataset:
Patent GB-434960-A (GB)
Title: Improvements in wheels for vehicles
IPC: B60B1/10
Filed: 1934-03-12
Abstract: 434,960. Vehicle wheels. KELSEYHAYES WHEEL CO., 3600, Military Avenue, Detroit, Michigan, U.S.A. March 12, 1934, No. 7836. Convention date, March 27, 1933. [Class 144 (i)] A sheet-metal wheel comprises a main load-supporting inner disc 1 which is formed with an attachment-flange 6, a short hub-portion 10, and spokes 9 with strengthening-ribs 91, and an outer closure-disc 3 formed of lightgauge metal. The disc 3 is formed with spokearms and hub-portions 16, 18 respectively, the edges of which are seamed over, or welded to, the main disc 1. The central opening of the disc 1 is closed by a cap 20 which is secured by spring-clips 22 carried by the flanged edge 19 of the disc. The flanged outer ends 13 of the spokes 9 are secured to the rim 2 by rivets 14. In a modification, the disc 3 is extended axially to form a hub-barrel portion.
Patent GB-1283143-A (GB)
Title: An electrically heated object and its method of manufacture
IPC: H05B3/48
Filed: 1970-02-19
Abstract: 1283143 Electric heating elements GENERAL ELECTRIC CO 19 Feb 1970 [27 March 1969] 7963/70 Heading H5H [Also in Division H1] An electric heating element 2 having turns or runs in a single plane comprises a heater wire 1 of tungsten, nickel or molybdenum coated by flame spraying vapour deposition or cataphoresis with a layer 3 of alumina, alumina and boron nitride, magnesium oxide and boron nitride, or magnesium oxide and alumina, which has a molybdenum, tungsten or nickel coating 4 applied by flame spraying, vapour deposition or cataphoresis, the element being brazed to an object 6 to be heated by a layer 5 of metal powder, e.g. molybdenum, nickel or a mixture of molybenum-nickel. The layer 5 may be applied to one side of the element 2 before attachment to object 6 or during attachment of element 2 to object 6. The element 2 may be of spiral or meander form and the object 6 may be a table-top type heating surface, electric cooking equipment or the cathode of a microwave electron discharge device. To prevent warping of a tungsten cathode a tungsten back-up plate is brazed to the opposite side of a spiral heating element.
Patent GB-453533-A (GB)
Title: Improvements relating to electric contacts
IPC: H01H1/18
Filed: 1935-03-14
Abstract: 453,533. Switch contacts. LUCAS, Ltd., J., and LUCAS, O., Great King Street, Birmingham. March 14, 1935, No. 7979. [Class 38 (v)] A voltage regulator has an armature f an arm e of which carries a movable contact d which co-operates with a contact a carried on a bimetallic strip b so that on variation of temperature the contact a moves in a plane at right angles to the movement of contact d and thus minimizes localized pitting due to sparking. In a modification the contact is mounted on a spring arm which is moved by thermally sensitive moans which may include an expansible fluid.
Patent GB-724311-A (GB)
Title: Improvements in or relating to apparatus for delivering and weighing predetermined quantities of granular and like substances
IPC: G01G13/00
Filed: 1953-03-24
Abstract: 724,311. Automatic feed weighers. EATON, S. March 24, 1953, No. 8004/53. Class 143. In apparatus for weighing and delivering granular and like material of the type in which a supply hopper feeds a measuring chamber which discharges material on to the goods pan of a weighing machine, the hopper and measuring chamber having valves opened and closed in unison alternately, full weight then being made up by a dribble feed, valve operating means is employed which ensures positive closing of the hopper valve before the measuring chamber valve commences to open, and vice versa. As shown, the measuring chamber is defined by slide valves 15, 18 and by a piston 36 adjustable by a screw rod and linkage, and a vertically displaceable member 21 with cam slots 22, 23 engaging followers 25, 28 secured to the slide valves passes through apertures in the slide valves, and when raised (by a pivoted hand lever) closes the hopper slide valve 15 and opens the measuring chamber valve 18 subsequently. The valve is mounted on runners 16 between spaced guides 17 and the valve 18 on studs 20 carried by the side walls of the measuring chamber. The leading edges of the valves are chamfered or have knife edges and that the valve 15 is partly cut away to provide a dribble feed opening regulatable by a semi-circular projection 64, hand adjustable by a knob 70. The member 21 is maintained in raised position by a solenoid being energized by a mercury switch actuated by the hand lever and attracting magnetically a keeper on the member 21. Compensation for material in flight at cut-off is effected by a needle 49 (Fig. 8) lightly engaging a bracket 50 connected to the goods pan. On correct weight being made up the lever 46 carrying the needle 49 is permitted to tilt downwardly under gravity so that a rod 51 on its other end engages a spring contact metal strip 53 adjustable by a screw 59, so opening the contacts and the circuit energizing the solenoid, whereupon the member 21 falls down under gravity to close the valve 18 and cut-off the feed, and re-open the valve 15. Such movement again operates the mercury switch so that another pair of contacts is bridged to energize the solenoid 56, attract a keeper 57 on the lever 46, and lift the needle 49 off the goods pan bracket so that the weight can be checked on the weigh machine scale. Alternatively vertical displacement of member 21 may be made by a foot pedal. Bulk supplies may be lifted to the supply hopper by a tipping container operated by a hand winch and slidably pivoted at each side to a pair of upright guide rails, one of which diverges at the top to tilt over the upper portion of the container. Specification 458,296 is referred to.
Patent GB-1463509-A (GB)
Title: Polyolefin-coated photographic carrier material
IPC: G03C1/79
Filed: 1974-02-21
Abstract: 1463509 Coated photographic carrier material FELIX SCHOELLER JR KG 21 Feb 1974 [22 Feb 1973] 8057/74 Heading B2E A polyolefine coated photographic carrier material, e.g. paper extrusion coated with polyethylene, has a crystalline coating of CaF 2 , MgF 2 , ZnF 2  and/or PbF 2  which coating incorporates silicic acid and a matting agent. The matting agent is based on calcium silicate or calcium carbonate and includes a fraction in which calcium or magnesium is present in the form of an oxide, hydroxide or other alkaline compound of calcium or magnesium. The coating may also contain as anti-static agent, e.g. an alkali or ammonium salt of a polycarboxylic acid, e.g. polyacrylic or polymethacrylic acid, or a polysulphoric acid. Suitable agents include polyacrylic acid propyl ester having 5% polymerised vinyl ether, polyacrylic acid propyl or butyl ester or a styrene butadiene interpolymer with a butadiene content of over 50%. The polyolefine surface may be activated by corona discharge before coating. The coating may be applied as an aqueous solution or dispersion containing a water-soluble calcium, magnesium, zinc and/or lead salt of hexafluorosilicic acid and a matting agent based on calcium silicate or calcium carbonate including a fraction in which calcium or magnesium is present as an alkaline compound. A portion of the calcium may be replaced by aluminium or magnesium.
Patent GB-307883-A (GB)
Title: Improvements in or relating to internal combustion or explosion turbines
IPC: F02C5/02
Filed: 1929-03-13
Abstract: 307,883. Motor Research Co. March 15, 1928, [Convention date]. Working-fluid supply. - An explosion turbine comprises a casing c and a rotor a having one or more pockets b to which explosive mixture is supplied by a compressor f. Charging is facilitated by a bye-pass m. Ignition is effected by a hot wire j at the moment when the edge d of the pocket registers with the exhaust port e. A compressor k supplies scavenging air through a port l. In a modification the bye-pass m and the scavenging air port are not provided. In a further modification, Fig. 5, liquid or pulverized fuel is injected by a cam-operated needle valve r into the pocket b which is already charged with hot compressed air. The explosions may be arranged to take place in the stator, and the rotor may surround the stator.
Patent GB-1422496-A (GB)
Title: Control valve electro-plating
IPC: F16K47/04
Filed: 1974-02-22
Abstract: 1422496 Boilers NUOVO PIGNONE SpA 22 Feb 1974 [23 Feb 1973] 8263/74 Heading F4A [Also in Division F2] A control valve for pressurizing once through boilers has a hollow plunger 22 reciprocable in a easing formed with an inlet 24, an outlet 25 and a seat 26 which co-operates with a sealing surface 30 on the plunger. In or downstream of the sealing surface 30 the plunger is formed with three axially-spaced circumferential rows of radial holes 31. The plunger is also formed with axial holes 32 in the tip 33 thereof. The upper open end of the plunger communicates with a pressure balancing chamber disposed about an actuating rod 34 which is moved by a servomotor. In use the valve is described in controlling flow in a thermoelectric plant from a steam generator 1 to a turbine 2 having one or two superheaters 3, 4 therebetween and one or two evaporator/flash tanks 6, 8 and a condenser 9 with associated valves in a by-pass for the steam generator. On movement of the plunger from closed position steam is first fed only via holes 31, 32 and the interior of the plunger, further opening movement allows flow directly from the inlet to the outlet.
Patent GB-266920-A (GB)
Title: Improvements in or relating to refrigerating apparatus
IPC: F25B17/06
Filed: 1926-03-26
Abstract: 266,920. Boving, J. O. March 26, 1926. Refrigerating, absorption machines for.-The generator-absorber and the condenser-evaporator of an invertible machine of the reversing type are disposed side by side and connected by a pipe c one end of which is perforated and projects into the generator-absorber. The heating is effected by a gas-ring, and a handle f facilitates the inversion of the apparatus.
Patent GB-747604-A (GB)
Title: A new or improved apparatus for measuring a variable condition
Inventor: HUTCHEON IAN CARRODUS
IPC: G01R1/28
Filed: 1952-04-01
Abstract: 747,604. Voltage converting. KENT, Ltd., G. June 26, 1953 [April 1, 1952], No. 8329/52. Drawings to Specification. Class 38 (2). [Also in Groups XXXVI and XXXVIII] In apparatus for determining a variable potential in magnitude, and sense, there is provided a bridge network having a capacitance forming each arm, one diagonal of which is switchable intermittently and continuously across a standard cell to produce across the other diagonal a comparison alternating voltage of magnitude and phase sense controllable by adjustment of the relative values of capacitance in adjacent bridge arms until it balances the alternating voltage produced by switching the potential to be determined synchronously with the bridge input.
Patent GB-1499242-A (GB)
Title: Brickwall
IPC: E04B2/48
Filed: 1976-03-02
Abstract: 1499242 Brick walls J-P STURM 2 March 1976 08384/76 Heading E1B In a brick wall built from blocks having series of staggered through cavities 6 and with end faces defining channels into at least some of which mortar is received, two strips of mortar with an insulation strip 12 therebetween are included between each horizontal course. Vertical joints preferably also comprise two strips of mortar and an insulating strip. The insulating material in the horizontal joints is preferably a roll or plait of glass or rock wool filaments enclosed in a sealed sheath of plastics whereas that in the vertical joints is preferably foamed polyurethane. The strips of insulating material closes the ends of some of the cavities.
Patent GB-774238-A (GB)
Title: Improvements in or relating to ball-point pens
IPC: B43K7/08
Filed: 1955-03-23
Abstract: 774,238. Reservoir pens. SHEAFFER PEN CO., W. A. March 23, 1955 [July 23, 1954], No. 8442/55. Class 146(3). In a reservoir for a ball-point pen of the type having a plug which rests on and follows the end of the ink column to prevent access of air to the ink and leakage of ink from the rear of the reservoir, the plug 8 is a gelatinous body comprising a substantially non-volatile liquid immiscible with the ink 4 having substantially uniformly dispersed therein finely divided colloidal size gelatinizing particles of an inorganic solid insoluble in the liquid and in the ink. The liquid may be a light mineral or hydrocarbon oil, and the finely-divided particles comprising the gelling agent may be silica, natural clays, or clays treated with an organic ammonium compound. The particles are thoroughly stirred into the oil, and the mixture subjected to the action of a mill to distribute the particles and effect the development of the gell structure. Examples of plugs and physical properties thereof are described. Where the ink comprises an organic polar solvent base, the liquid of the plug comprises a non-polar substance. The reservoir 2 may be formed of brass, aluminium, or of plastic material such as nylon, and it may be transparent.. The stem 16 is enlarged at the rear end and secured within the reservoir 2 by depressing the latter as at 20. A closing disc 12 having an air vent 14 therein is secured in the free end of the reservoir. Specification 669,973 is referred to.
Patent GB-1383267-A (GB)
Title: Pipe coupling
Inventor: ROOS E
IPC: F16L41/08
Filed: 1973-02-21
Abstract: 1383267 Pipe couplings GRANGES ESSEM AB 21 Feb 1973 [22 Feb 1972] 8513/73 Heading F2G To maintain the seal between a plastics socket 12 and a thermoplastics pipe 15, irrespective of cyclical variations in temperature, the pipe is gripped beyond the end of the socket, at a position, spaced from the sealing ring 14, by at least twice the wall thickness of the pipe. For small pipes, the spacing may be half the external diameter of the pipe. The securing sleeve 16 is of harder material than that of the pipe, e.g. acetal resin, in the case of a polythene pipe and brass, in the case of a p.v.c. pipe. It may be partially split by slots 21, or completely split, or divided into segments, which are resiliently pressed together by cover member 23. The play between the pipe and socket may be taken up by the pipe swelling at 26, under the liquid pressure.
Patent GB-637221-A (GB)
Title: Improvements relating to ship-propulsion systems embodying electrical or electro-mechanical power transmission means
IPC: H02P9/08
Filed: 1944-05-08
Abstract: 637,221. Transmitting mechanical power. GENERAL ELECTRIC CO., Ltd., and JAKEMAN, R. G. May 8, 1944, No. 8672. [Class 38 (iv)] [Also in Group XXXVII] Ship propulsion equipment comprises a generator adapted to be driven by a prime mover and to supply current to a motor for driving the propeller or a generator adapted to supply current to an electromagnetic slip coupling forming part of the drive between the prime mover and the propeller, and includes means operative dependently upon the rotation of the propeller shaft for providing a voltage dependent upon the speed of said shaft, and a circuit interrupter adapted to be closed when the ship is to be slowed or stopped to supply current from said means to the controlling coil of an automatic voltage regulator providing a resistance in the excitation circuit of the generator, which resistance increases progressively when the voltage regulator is in operation. An alternator 1 supplies a propeller motor 2 to which is coupled a tachometer generator 4 which supplies the control coil 5 of an automatic voltage regulator 6 and an operating coil 7 of a contactor 8. When a control member is moved to reverse the alternator and apply a braking torque to the propeller, a switch 9 is closed to short-circuit a resistor 10 and momentarily over-excite the alternator field winding. An auxiliary contact closes a circuit to the coils 5 and 7 and the voltage regulator operates to insert resistance in the alternator field circuit, to reduce the braking torque and keep the propeller speed substantially constant. When the voltage regulator has reached the limit of its range the contactor 8 closes to short-circuit the resistance pertaining to the voltage regulator. The alternator is then over-excited and the propeller reversed. In a modification, a single resistance is used in the exciter field circuit, a switch being used, if necessary, to short-circuit a portion of this resistance at the initiation of automatic control. When applying the invention to a transmission where the drive between the prime mover and the propeller is afforded by an electromagnetic slip coupling, the automatic voltage regulator will operate on the field strength of the coupling. For a reversible coupling as described in Specification 541,976 or 579,192, the automatic voltage regulator operates on the field strength of the alternator forming part of the coupling.
Patent GB-124634-A (GB)
Title: Improvements in connection with Steam Motor-waggons.
Inventor: WOODVINE GEORGE
IPC: B60K3/00
Filed: 1918-05-28
Abstract: 124,634. Woodvine, G. May 28, 1918. Tipping-wagons.-Steam-driven motor wagons are fitted with a hydraulic machine for tipping the body when the wagon is a tip-wagon, or for operating hoisting-tackle, lifting-jacks, &c. An injector A is operated by steam from the boiler A' of the wagon and supplied with water from the water tank B<3>. A delivery pipe C leads the pressure water from the injector through a multiple-way valve C<2> and pipes D<1>, D<2> to either end of a double-acting hydraulic cylinder D containing a piston D<4> for actuating the tipping or other mechanism. The spent water is returned from the cylinder through the valve C<2> and a pipe C<3> to the water tank.
Patent GB-898291-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J5/00
Filed: 1960-03-14
Abstract: The invention comprises compounds having the formulae <FORM:0898291/IV (b)/1> wherein R1 is hydrogen or the acyl radical of a hydrocarbon carboxylic acid containing 1-12 carbon atoms, inclusive, Y is b -hydroxymethylene or carbonyl, X11 is hydrogen, fluorine or chlorine, Ac is the acyl radical of a hydrocarbon carboxylic acid containing 1-12 carbon atoms, the dotted line represents an optional 1,2-double bond, X111 represents bromine or iodine, and R11 is an alkyl or aryl radical and processes for the preparation thereof by oxidatively hydroxylating a 21-acylate of 6a , 16b -dimethyl-11b ,21-dihydroxy-4, 17(20)-pregnadien-3-one I, with osmium tetroxide and an oxidising agent to obtain the corresponding 17a -hydroxy-20-keto-21-acyloxy compound II, treating II with a base to obtain 6a ,16b -dimethyl-11b , 17a ,21 - trihydroxy - 4 - pregnene - 3,20 - dione III, which may be oxidised to the corresponding 11-keto compound; or alternatively treating II with a dehydrating agent to obtain the corresponding 9(11)-dehydro compound V, treating-V with hypohalous acid to obtain the corresponding 9a -halo-11b -hydroxy compound VI, treating VI with a base to produce a 9(11)-oxido compound VII, treating VII with HF to obtain a 9a -fluoro compound which is hydrolysed to obtain 9a -fluoro-11b ,17a ,21-trihydroxy-16b -methyl-4-pregnene-3, 20-dione.  Starting with 6a , 16b  - dimethyl - 11b , 17a , 21 - trihydroxy - 1, 4 - pregnadiene-3,20-dione and using a similar procedure gives 9a -fluoro-11b ,17a ,21-trihydroxy-16b -methyl - 1, 4 - pregnadiene - 3, 20 - dione.  Oxidation gives the 11-keto compounds.  Treatment of the 21-hydroxy compounds with a sulphonating agent gives the corresponding 21-sulphonate ester which is converted to the corresponding 21-iodo compound with alkali metal iodide.  Treating the 21-iodo compound with silver fluoride gives the corresponding 21-fluoro compound. Specifications 771,344, 781,712 and 898,295 are referred to.ALSO:Pharmaceutical compositions comprise 6a , 16b  - dimethyl - 11b ,17a ,21 - trihydroxy - 4-pregnene - 3,20 - dione, 6a ,16b  - dimethyl-17a ,21 - dihydroxy - 4 - pregnene - 3,11,20-trione, 6a ,16b  - dimethyl - 9a  - fluoro - 11b , 17a ,21 - trihydroxy - 4 - pregnene - 3,20-dione, 6a ,16b  - dimethyl - 9a  - fluoro - 17a ,211-dihydroxy - 4 - pregnene - 3,11,20 - trione or the corresponding D 1,4 compounds, and a pharmaceutical diluent.  They are employed orally, as tablets, for injection in suspensions, or topically as ointments, with or without coacting antibiotics, e.g. neomycin, tetracycline, chloramphenicol and novobiocin.  Specifications 771,344, 781,712 and 898,295 are referred to.
Patent GB-638249-A (GB)
Title: Improvements in or relating to detectors and discriminators for amplitude limited frequency modulated waves
IPC: H03D3/08
Filed: 1948-03-30
Abstract: 638,249. Frequency modulation. SOC. FRANCAISE RADIO ELECTRIQUE. March 30, 1948, No. 9008. Convention date, April 15, 1947. [Class 40 (v)] A discriminator circuit for the detection of frequency-modulated waves comprises a limiter valve 1 feeding a bridge circuit comprising two branches to earth 0, each comprising equat inductance coils L and equal capacities C in series but arranged in inverse order, a resistance R equal to #L/C, being connected between the junction points. Tappings taken at points symmetrically placed with respect to the midpoint of the resistance R are connected to separate rectifiers d, load resistors r, and earth ; and the detected signal is taken off at MN across the load resistors. The resonant frequency of the bridge may be #3 times the mean frequency of the F.M. wave ; and the resistance between the tappings may be 1/5 or less of the resistance R. Harmonics produced by the limiter may be reduced or eliminated by a filter, placed between the limiter and the discriminator, and comprising a shunt circuit L2, C2 parallel-tuned to the mean wave frequency and a series circuit L1, C1 series-tuned to the same frequency.
Patent GB-772317-A (GB)
Title: Improvements in method and apparatus for forming a sheet of latex foam
Filed: 1955-03-29
Abstract: 772,317. Casting sheets of latex or other foam. UNITED STATES RUBBER CO. March 29, 1955 [June 17, 1954], No. 9110/55. Class 87(2). Latex foam is fed through a pipe 18 on to a moving belt 10 with deckle belts 12 to prevent overflow and is carried under a member 13 whereby it is formed into a flat sheet which, after passing through gelling and vulcanizing stations, is suitable for upholstery and similar uses. The member 13 comprises a plate 14, perpendicular to the belt 10, joined to a plate 15 parallel to the belt and spaced from it according to the thickness of sheet required. It is stated that the parallel surface so provided obviates large bubbles in the shaped foam, and the length of the plate 15 should be sufficient for this effect without being so long that gelling commences before the foam leaves it : 10 to 12 inches is mentioned as suitable. As shown, the plates 14 and 15 are converted by a sloping member 16 which gives the effect of a funnel whereby the foam is agitated and gelling prevented. The member 13 is supported from posts 20 by a bar 17 attached to the plate 14.