baber/WOPTO huggingface dataset:
Patent GB-690189-A (GB)
Title: Improvements in or relating to electrically controlled vehicles
Inventor: REYNOLDS FREDERICK WINSTON
IPC: G01R31/36
Filed: 1950-09-28
Abstract: 690,189. Batteries; testing. WINSTON ELECTRONICS, Ltd., and STANLEY ENGINEERING CO., Ltd. Aug. 3, 1951 [Sept. 28, 1950], No. 23757/50. Class 37. [Also in Group XXXI] In an electrically propelled vehicle incorporating a predetermined load resistance a connected across the battery b by way of a switch c and having in parallel therewith a voltmeter d calibrated in miles or other linear units, the arrangement is such that when the switch is closed, a reading is displayed on the voltmeter indicating the approximate distance that the vehicle can run on the existing charge in the battery. In the arrangement shown, the voltmeter scale is also marked to indicate the positions of a charging switch g of a battery charger f carried on the vehicle, commensurate with the added charge needed within a predetermined time for the undertaking of a required number of miles. The scale may also be marked with the charging rates corresponding to the charging switch positions. The voltmeter may be constituted by the instrument disclosed in Specification 690,201.
Patent GB-639590-A (GB)
Title: Improvements in cycle and like bells
IPC: G10K1/074
Filed: 1947-08-27
Abstract: 639,590. Cycle bells. BRUN, M. Aug. 27, 1947, No. 23763. Convention date, Dec. 1, 1945. [Class 13] In a bell with double domes c, g, Fig. 1, fixed to the same central support h as claimed in Specification 591,688, the projection i<SP>2</SP> operating the strikers o is carried by a plate i rotatably supported by the central post and having perforations i in mesh with a pinion k mounted on a spindle carrying a friction roller f adapted to be driven by the cycle tyre x. The bell is mounted on a support a pivoted to a bracket c fixed on the cycle frame, and engagement of the roller with the tyre is remotely controlled by a sheaf and cable e.
Patent GB-753135-A (GB)
Title: Improvements in or relating to dry rectifiers
Inventor: MAYER SIMON ERNST
IPC: H01L23/26
Filed: 1953-08-28
Abstract: 753,135. Semi-conductor devices. STANDARD TELEPHONES & CABLES, Ltd. Aug. 28, 1953, No. 23810/53. Class 37. A rectifier assembly comprises a germanium die 3 having a PN junction parallel to the major faces mounted between a recessed copper plate 2 and a metal rod 6 normal to the plate, in an inert atmosphere contained by a metal bell 5 soldered in a circular groove 4 in plate 2 and forming the outer member of a metal-glassmetal seal to the rod 6. The die may be plated with nickel-tin and given the heat treatment described in Specification 753,131 and is tinned on both faces, and the recess and groove are tinned before assembly. The rod and bell are of the metal known by the Registered Trade Mark " Kovar " or of stainless steel and are sealed to a glass ring 8. A spring or spring-pressed terminal may be mounted on rod 6. After assembly the arrangement is heated in inert gas such as forming gas (90 per cent N 2 : 10 per cent H 2 ) and the bell is pressed on the plate so that on cooling all the soldered joints are completed.
Patent GB-264893-A (GB)
Title: Improvements in internal combustion engines having cylinders arranged parallel to a central shaft
IPC: F02B75/26
Filed: 1925-09-26
Abstract: 264,893. Williams, R., and Moses, R. I. Sept. 26, 1925. Four - stroke cycle engines; driving-gear.- The engine has a number of cylinders 2 with their axes parallel to a central shaft 1; each cylinder contains a pair of oppositely moving pistons 6 driving the shaft through rollers 10 on the piston rods engaging cam grooves in drums 11 fixed to the shaft. The rollers are carried by blocks 9 with guide rollers 14. The drums 11 are attached to blocks 15, mounted on the shaft. Cylinders, pipes for; pumps.-Each cylinder has a single port 22 controlled by a rotary valve 17 fixed on the shaft. The valve has two central chambers 19, 19<a> communicating through radial ports 21 with the interior of the driving shaft which serves as the induction pipe; the ports &c. act as mixing devices for the charges. The chambers 19. 19<a> communioate simultaneously with two cylinders on the suction stroke, but other arrangements can be used. The valve has also diametrically opposite exhaust chambers 23, 23<a> communicating with lateral annular chambers 25. 25<a> in the valve. These lateral chambers are constantly in communication with exhaust pipes 18 arranged between the cylinders. Peripheral packing rings 26 are provided to separate the inlets from the exhaust chambers 25, 25<a> and transverse bars 27, Fig. 5, are used to make a gas tight joint between the valve and the box in which is works; the bars 27 have knife edges on their rubbing surfaces and are made of a metal with a high coefficient of expansion. On the outer side of the chambers 19, 19<a>, 25, 25a are provided vanes 29. 30 whieh act as pumps for the charge and the exhaust.
Patent GB-488418-A (GB)
Title: Improvements in or relating to fumigation
IPC: A23C3/08
Filed: 1936-10-02
Abstract: 488,418. Fumigating ; treating grain. GUARDITE CORPORATION, and CARBIDE & CARBON CHEMICALS CORPORATION. Oct. 2, 1936, No. 24057. Convention date, Nov. 18, 1935. [Classes 49, 81 (i), and 130] [Also in Group I] In the fumigation of organic products such as furs, tobacco or foods, e.g. oatmeal, in an enclosed chamber, this is exhausted to a pressure of not more than an inch of mercury, a gaseous fumigating mixture, one component of which is preferentially absorbed by the products is admitted until pressure is at least of the order of 5 lb., the mixture is removed from contact with the products, and conducted back to contact them at a point nearer to the original entrance of the mixture than is the point of removal. Mixtures of an inert gas such as carbon dioxide with ethylene oxide or methyl formate may be used containing, e.g. 9 parts carbon dioxide to 1 of ethylene oxide. A tank 1 is first evacuated by pump 6 discharging through oil separator 10 and vent 12. Fumigant is then admitted through lines 15, 5 and 4 from pressure vessel 14, which may be provided with heating means and is connected with a fumigant supply 18, until a pressure of about 5 lb. is reached. The gas can be recirculated by withdrawing it through the discharge orifice 19 and line 7 and pumping it back through separator 10 and lines 15 and 5. Alternatively, the tank may be re-evacuated to a pressure of, say, 1 inch, the fumigant being stored in vessel 14. A single stage compressor may be employed for this purpose. The compressed gas is then released directly into the chamber through lines 4. This cycle is preferably carried out in 5 mins. or less and repeated in 10 mins. A third method of passing back the gases is to follow method one but reverse the gas flow every few minutes, first closing line 7 and pumping the gases from the tank through line 5 and into the tank through line 9, and then closing line 9 and pumping gases out through line 7 and back through lines 15 and 5. Specifications 23121/06 and 23954/07, [both in Class 81], are referred to.
Patent GB-1253536-A (GB)
Title: Apparatus for feeding an elongate workpiece to a device for cutting the workpiece transverse to its length
Inventor: HEWITT EWAN CHRISTIAN
IPC: B21D43/28
Filed: 1968-05-21
Abstract: 1,253,536. Shearing. DAVY & UNITED ENG. CO. Ltd, 16 May, 1969 [21 May, 1968], No. 24106/68. Heading B3W. As shown a workpiece 8 supported by a driven roller table 9 is engaged by a pusher 23 pivotally mounted at 24 on a carriage 22 reciprocated by a chain drive 33. Means such as a selsyn indicator operatively coupled to the drive sprocket of the chain drive or to a reduction gear unit driving the sprocket indicates the position of the pusher 23 on a dial 45. The section of the roller table nearest the shear comprises a frame 12 which is pivotable about shafts 14. An extension 18 of the frame carries a brake block 19 which resists force applied to it in the feed or return directions and is proud of the rollers 10. The extension rests on a compressible block 17. Adjustable side guides 21 are provided. In use, the pusher 23 advances the workpiece to the shear for the first cut, a hold down 6 is lowered which causes the frame 12 to pivot to a position in which the rollers and brake block 19 are level with or below the fixed shear bolster 4 and a cut is made. When sufficient front cropents have been made cutting proceeds on the basis of the remaining length of the workpiece indicated on the dial 45, a correction factor being applied, e.g. by visual estimation or measurement, to take into account material to be discarded at the rear end of the workpiece. For subdividing the workpiece on a weight basis weighing beams 38 are raised so that fingers 40 support the workpiece clear of the roller table. The pusher then advances the workpiece on the basis of the average weight per foot. In an alternative embodiment, the side guides are movable in the feed direction and replace the pusher 23 to feed the workpiece. In a further embodiment the workpiece is fed by rollers or a chain feed mounted on the side guides.
Patent GB-942725-A (GB)
Title: Improvements in or relating to dredging equipment
Inventor: LEVARDI FERENC
IPC: E02F3/92
Filed: 1962-06-22
Abstract: 942,725. Suction dredgers; jetting equipment. NIKEX NEHEZIPARI KULKERESKEDELMI VALLALAT. June 22, 1962, No. 24160/62. Heading E1F. In a suction dredger the open ended suction head 12 at the lower end of the or each suction pipe 2 has a cross section which decreases in the direction in which suspended material is urged by fluid jets emerging from outlets 14 of jetting pipes 13 associated with and extending below the head, the outlets being directed both axially downwards of and towards the inlet of the suction head. The jetting pipes 13 may be disposed in one or more concentric circles about the head, the pipes of an inner circle extending further below the pipes of the next outer circle. Some of the pipes 13 have at the lower end spikes 15 for maintaining the suction head clear of the ground. The suction tube has a flexible section that allows of the tube flexing on the head encountering obstructions when being advanced over a bottom, and of automatic limited vertical reciprocation of the tube by hydraulic rams associated with the suction tube. A suction head and short suction pipe of the type described may be mounted co-axially of to extend into a similarly shaped suction nozzle and tube. Vertically swingable jetting tubes may be mounted on the dredger to precede the suction head or heads over the bottom.
Patent GB-922206-A (GB)
Title: Process for the preparation of oxirane derivatives
IPC: C07D/
Filed: 1961-07-04
Abstract: Oxirane compounds are made by epoxidising olefinically or cycloolefinically unsaturated compounds with hydrogen peroxide in the presence of succinic anhydride.  Preferably an inert solvent or diluent is used in which succinic anhydride is readily soluble while succinic acid is only sparingly soluble, e.g. esters, acetonitriles, chlorinated hydrocarbons or mixtures of such solvents.  It is also preferred to add an alkali such as sodium or potassium carbonate or hydroxide, sodium oxide, peroxide or alcoholate.  The reaction may take place at room temperature or below, at 40-65 DEG C. or at the boiling temperature of the medium. Suitable starting materials are olefinic hydrocarbons, unsaturated chlorinated hydrocarbons, unsaturated alcohols, phenols, ethers, aldehydes, ketones, acids, esters, acetals, amides, imides, nitriles and phosphoric acid esters. Lists of suitable compounds are given.  Detailed examples describe the epoxidation of D 3-tetrahydrobenzal-D 3-cyclohexene-1:1-dimethanol, cyclohexene, dicyclopentadiene, diallyl formal, phthalic acid diallyl ester, and 3-propenyl-2:4-dioxospiro(5:5)-9:10-epoxyundecane.
Patent GB-533960-A (GB)
Title: Improvements in resilient members for the attachment of various components of motor vehicles
IPC: F16F1/387
Filed: 1939-08-22
Abstract: 533,960. Resilient sleeve joints. ZAVODY RING- HOFFER-TATRA AKCIOVA SPOLECNOST. Aug. 22, 1939, No. 24196. Convention date, Sept. 1, 1938. [Class 108 (iii) In a resilient sleeve joint for motor vehicles &c. of the type comprising a rubber &c. sleeve 3 enclosed between two metal sleeves 1, 2, the sleeve 3 is eccentrically arranged so as to provide extra rubber in the direction of thrust P.
Patent GB-221361-A (GB)
Title: A combined inflating valve and pressure gauge for use with pneumatic tires
IPC: B60S5/04
Filed: 1923-09-28
Abstract: 221,361. Donaldson, W. R. Sept. 28, 1923. Couplings, disconnectible.-Comprises a quick detachable connection for connecting a flexible pipe to a tyre valve. The body part 10 houses a plate 14 fitted with a central boss 16 having a bore 17 ending at the lower end of the boss in lateral holes, a packing washer 19 held in place by a screwed thimble 22 and a rotating carrier ring 25 held in place by a screwed cap 26. A chuck 30 is supported on the plate 25 and comprises pivoted members 31 carrying jaws 32 threaded to engage the tyre valve stem and normally urged to close together by springs 37 housed in the ring 25.
Patent GB-811526-A (GB)
Title: Improvements in or relating to the production of polyester resins
IPC: C08G63/127
Filed: 1956-08-08
Abstract: Polyesters are prepared by either (i) completely esterifying a benzene tri- or higher carboxylic acid or anhydride with a monohydric alcohol or (ii) partially esterifying it so that at least two of the carboxyl groups are esterified, and then interchanging the monohydric alcohol with a polyhydric alcohol and continuously removing the monohydric alcohol and water liberated. In a modification of the process dibasic unsaturated carboxylic acids in an amount of 5-30 per cent by weight of the benzene carboxylic acids are incorporated in the polyester: (a) by mixing the unsaturated acid with the polyhydric alcohol during the interchange, (b) by interchanging with an excess of polyhydric alcohol and then reacting with the unsaturated acid, (c) by forming an ester of the unsaturated acid and excess polyhydric alcohol, and then performing the interchange with that ester or (d) forming an ester of the polyhydric alcohol with excess unsaturated acid and using the acid ester thus formed instead of the unsaturated acid itself.  Benzene carboxylic acids specified are pyromellitic,tri mellitic, mellophanic and benzene pentacarboxylic acids.  Monohydric alcohols specified are the alkanols of 1-8 carbon atoms.  Polyhydric alcohols specified are ethylene, propylene and butylene glycols, hexane diols (1 : 6), glycerol and glycerol monoesters of fatty acids.  Unsaturated acids and esters thereof disclosed are maleic acid, ethylene glycol di-maleate and di-b -hydroxyethyl maleate. Solvents for the resins include acetone and 1 : 1 butanol/toluene. The unsaturated resins may be copolymerized with styrene, vinyl acetate or acrylates in the presence of benzoyl, dilauroyl or cyclohexanone peroxide with or without cobalt naphthenate.  Many examples are given.  Uses.-Stoving lacquers.
Patent GB-190229-A (GB)
Title: Improvements in and relating to devices for use in drilling and boring
IPC: E21B4/08
Filed: 1921-09-13
Abstract: 190,229. Bullock, H. C. Sept. 13, 1921. Bore-hole apparatus.-A jar for use in boring wells &c., and comprising two links in engagement with each other, is formed from a bar of metal solely by parting and dividing operations. Spaced grooves 1 are formed around the periphery of the bar, as by forging, and pairs of grooves are connected by forming depressions 2; slots 3 are then formed through the bar, leaving projecting tongues 4, and central intersecting holes 5, 6 are drilled at right-angles to each other. Between the holes 5, 6 and one of the slots 3 two incisions are then made by making pairs of intersecting cuts 7, 8 and 9, 10, and between the holes 5 6 and the other slot 3, two similar incisions are made at right-angles to the first incisions. Specification 174,026 is referred to.
Patent GB-443233-A (GB)
Title: Regenerative repeaters for telegraph signals
IPC: H04L25/20
Filed: 1934-08-23
Abstract: 443,233. Type - printing telegraphy. CREED & CO., Ltd., and SALMON, R. D., Telegraph House, Croydon. Aug. 23, 1934, No. 24364. [Class 40 (iii)] Distorted signals are regenerated by a system in which the axial movements of a rotating member such as the double arm 42 correspond to changes of signal-polarity, and at the middle point of each signal impulse this arm registers the polarity of the impulse, for instance by striking one or other of the levers 36, 37. The movements of the armature 1 of the receiving magnet are by this means relayed to a rocker 34 which sets the selector mechanism of a printer and may control contacts for retransmitting the signals. In response to the start signal the armature 1 turns the shaft 2 so as to release detent 8, whereupon the shaft 12 is released and makes one revolution in a time which corresponds to 6¢ impulse periods; towards the end of this revolution the detent 8 is restored by cam 14 acting on lever 13. When shaft 12 has revolved for 1“ impulse periods, cam 15 trips the detent mechanism 16, 18, and releases shaft 7 which performs five half-revolutions in five impulse periods and is then rearrested. At the middle of each impulse period the double arm 42 lifts one or other of the arms 36, 37, according to its axial position as determined by the armature 1 through the shaft 2. At this moment the lever 23 has been rocked to the left by cams 19, 20, carrying with it the pin 25 so that one of the levers 26, 27 strikes against, and the other latches above, the end of the corresponding one of the arms 36, 37, and in this manner the rocker 34 is set to one or other of two positions for the purpose of setting the selector mechanism of a printer. It may also effect the retransmission of electric impulses, the retransmission of the start and stop impulses being effected by the shaft 12. In a modification, Figs. 1, 2 and 3 (not shown), circular motion is imparted to a pin by two harmonic cams and the plane of motion, determined by the polarity of the signals, determines which of two signal-controlling levers shall be tripped.
Patent GB-245840-A (GB)
Title: Improved machine for charging metal-link cartridge belts with small arm ammunition
IPC: F42B39/10
Filed: 1924-10-14
Abstract: 245,840. Armstrong, Whitworth, & Co., Ltd., Sir W. G., and Forster, G. Oct. 14, 1924. Cartridge belts. - A machine for charging metal-link belts comprises a reciprocating bar e which pushes the bottom cartridge from a hopper d into one of the links, and feeding- mechanism for the belt comprising a toothed drum n mounted on the bar e and rotated step by step by a ratchet sleeve o oscillated by inclined slots p in the reciprocating bar. Projections q on the sleeve engage spring pawls r projecting from the end of the drum, which is then rotated during the backward movement of the bar. A spring .catch s engaging slots t in the drum prevents rotation during the forward stroke.
Patent GB-518237-A (GB)
Title: New or improved process for the production of food powders
IPC: A23L7/10
Filed: 1938-08-19
Abstract: 518,237. Food preparations. SCHMIDT, H., and ATOMIZED FOOD PRODUCTS, Ltd. Aug. 19, 1938, No. 24398. [Class 49] A powder which can be served with cold water or milk is made by mixing corn flour, potato flour, rice flour or arrowroot or two or more of these substances with water to form a paste, cooking the mixture until the starch gelatinizes, adding cold water to thin and cool the product and finally spray-drying in an atomizer. Liquid flavouring may be added before the drying. Alternatively the paste mixture is cooked, dried and finely powdered, and the flavouring is added in powder form.
Patent GB-598854-A (GB)
Title: Improvements in spinning hollow-ware
IPC: B28B1/02
Filed: 1945-09-21
Abstract: 598,854. Making hollow - ware. ERICSSON, E. E. Sept. 21, 1945, No. 24434. [Classes 83 (ii) and 83 (iv)] Spinning.-A method of'making hollow-ware such as cooking utensils, in which a circular metal plate is spun over a rotating pattern by means of pressure tools movable along the pattern, is characterised in that during the spinning process the pressure or forming tools are immediately followed by one or more smoothing tools in sliding contact with the work. In one form, Fig. 1, a disc 2 is held against the end of a rotating cylindrical pattern 1 by a rod 4 and is spun over the sides of the pattern by pressure rollers 3. The frame in which the rollers are mounted and bv which they are traversed also carries a smoothing steel 10 which immediately follows the rollers and evens out any irregularities occurring in the surface. In a modified form, Fig. 3, for shaping conical vessels, the smoothing steel 10 is secured to a cross-bar 17 at the lower ends of members 16 depending from followers 12 adapted to slide along a stationary pattern 13 which may be adjusted by screws 20 to the angle of the conical pattern 1.
Patent GB-224214-A (GB)
Title: Refractory cement with a base of zirconium ore
IPC: C04B33/13
Filed: 1924-10-15
Abstract: 224,214. Soc. d' Etude des Agglomeres. Oct. 29, 1923, [Convention date]. Refractory substances containing zirconium compounds.-A refractory cement for attaching refractory articles of zirconium ore to one another or to other articles comprises powder obtained by crushing agglomerated zirconium ore, zirconium oxide, an organic binder such as dextrin, and an inorganic binder such as boric acid, with or without addition of other refractory earths. The zirconium ore is agglomerated in the manner described in Specification 223,573, then heated to 2500‹ C. in an electric furnace, passed into cold water, and subsequently crushed.
Patent GB-371268-A (GB)
Title: Improvements in and relating to hollow-channel bricks and means for the closing up of the open ends of the channels of such bricks
IPC: B28B11/00
Filed: 1931-09-01
Abstract: 371,268. Rotating moulding plungers. AVAN AKT.-GES. GES. ZUR VERWERTUNG VON ZIEGELPATENTEN, Chur, Graubunden, Switzerland. Sept. 1, 1931, No. 24543. Convention date, Sept. 3, 1930. [Class 87 (ii).] In hollow bricks a having channels b with closed ends, the closure is effected by a domed arch c having an annular base countersunk in the ends of the brick and formed from the material of the walls and partitions when in a plastic state. The closing mechanism comprises rapidly rotating shaping members i each provided with a concave moulding surface l and adapted to be moved forward gradually into the material in a direction parallel to the longitudinal axis of a channel b. The members i cleave material from the ends of the walls forming flaps which are moulded over to form the domed arch. The surfaces l are provided with inclined prominences l<1>, l<2>, shaped like conveyer helices and having abrupt following edges m<1>, m<2>. The contour of these edges determines the curvature of the outer surface c<2> of the arch. Passages o are provided for the escape of air and to prevent the production of a vacuum on retraction of the members i. The members i are attached to rotating shafts h mounted in bearings g on a table f and movable longitudinally by an arrangement of rods k, the extent of the movement being limited by adjustable stops j. The bricks are moved into position between the shaping members by conveyer rollers n.
Patent GB-744275-A (GB)
Title: Improvements in screw-operated chairs and stools
Inventor: ELVIS WILFRED HANSON
IPC: A47C3/24
Filed: 1953-09-05
Abstract: 744,275. Adjustable seats EVERTAUT, Ltd. June 2 1954 [Sept. 5, 1953], No 24613/53. Class 52(2). The screwed stem 3 of a vertically adjustable seat en gages a nut 4 immersed in oil ir the tubular pedestal 5. The upper end of the tube has ar oil-retaining gland and cap 10