baber/WOPTO huggingface dataset:
Patent GB-220777-A (GB)
Title: A new or improved means for balancing the reciprocating parts of multi-cylinder engines
IPC: F16H23/00
Filed: 1923-07-17
Abstract: 220,777. Watts, R. E. July 17, 1923. Crank - actuated pumps.-In a multicylinder engine pump or compressor the pistons are arranged in pairs, those of each pair being connected to the opposite ends of a beam H driving an oscillating shaft C. The shaft C is connected to a Z-crankshaft by a universal coupling E. The pistons are at right angles to the plane containing the axes of the shafts C, A and are offset laterally with respect to the crankshaft. In the case of a four cylinder engine the cylinders are so arranged that that centre of gravity of two pistons and connecting-rods which move in the same direction coincides with that of the other two pistons and rods which move in an opposite direction.
Patent GB-967255-A (GB)
Title: Allotter circuit for automatic telephone exchanges
Inventor: DELANOY DONALD BRIAN
IPC: H01J17/04
Filed: 1960-05-25
Abstract: 967,255. Automatic exchange systems. PYE Ltd. May 24, 1961 [May 25, 1960], No. 18473/60. Drawings to Specification. Heading H4K. In a system in which calling subscribers are connected to links, there being a cold cathode tube connecting each subscriber to each link, a link allotter circuit comprises a ring counter of cold cathode tubes, one per link. Each cold cathode tube when not fired causes a diode to conduct, thereby clamping the triggers of the subscriber's cold cathode tubes associated with that link and so preventing these tubes from striking. Thus only subscribers' tubes associated with the link whose ring counter tube is fired, can be struck. The counter has a start tube which is fired from a source of pulses, and thereafter remains fired to free the counter from further influence by the source of pulses. The description is substantially identical with part of Specification 967,252.
Patent GB-1163827-A (GB)
Title: Micrometer Adjustment Lock
IPC: G01B3/18
Filed: 1967-04-21
Abstract: 1,163,827. Lock nuts. AMERICAN OPTICAL CORP. 21 April, 1967 [8 Sept., 1966], No. 18600/67. Heading F2H. Means for locking a rotatably adjustable screw 17 in a rotatably adjusted position comprises a nut 19 on the screw, the nut having slots 20, 21 extending into the body of the nut so that the connected parts separated by the slots may be flexed relative to each other about the connections, means being provided for causing the parts to be so flexed to cause binding of the threads of the screw and the nut preventing relative rotation. The screw 17 is integral with a spindle 16 held in a cap 10 by a set screw 18 and rotatable by means of a knurled handle 13 on the cap 10. The nut 19 is carried by a sleeve 22 having external screw threads 25 on which is mounted a lock nut 26. The lock nut 26 is turned by rotation of a lever 30 held on the lock nut 26 by a set screw 31. The lock nut 26 bears on a pair of semi-circular members 27 having fingers 28 projecting through slots 24 in the sleeve 22. The fingers 28 bear on an inner sleeve 29 engaging the slotted part of the nut 19. Thus by turning the lever 30 and thus the lock nut 26, in one direction, the inner sleeve 29 can exert pressure on the nut 19 to cause it to bind on the threads of the screw 17, this locking action being releasable on rotation of the lever 30 in the opposite direction. The mechanism is described as being of use in the adjustment of the stroke of a piston pump where one end of the screw 17 serves as limit stop for the piston movement. To this end the outer surface of the sleeve 22 may be calibrated along its length and the cap 10 may have a transparent portion 11 with a vernier scale (not shown) marked round its rim.
Patent GB-594818-A (GB)
Title: Improvements in or relating to olefine-polysulphide compositions
IPC: C08L81/00
Filed: 1942-12-31
Abstract: Olefine-polysulphide resins, e.g. those prepared by interaction of halogenated hydrocarbons or their ethers, esters, &c. with metallic sulphides or polysulphides, are plasticized by the addition of high molecular weight hydrocarbons extracted by means of solvents having a polar character (sulphur dioxide, sulphurdioxide-benzol mixtures, furfural, phenols) from mineral oil distillates.  The hydrocarbons range from oils of medium viscosity to resins according to their molecular weights, specific gravities, and carbon/hydrogen molar ratios which lie within the ranges 250-750, 0.995-1.155 and 0.6-1 respectively.  The extracted materials may be treated by distillation, selective adsorption, desorption, chlorination, airblowing, dehydrogenation with sulphur, prior to admixture with the resins.  Small amounts of known plasticisers and fillers may also be added, e.g. diphenyl guanidine, tetramethyl thiuram and benzothiazyl disulphide, carbon black, whiting, barytes, natural or synthetic rubbers butadienes and their interpolymers, zinc oxide, stearic acid. 100 parts by weight of a crude distillate of boiling range 350-525 DEG  C. is extracted with 200 parts by weight of a sulphur dioxidebenzol mixture.  After distilling off solvent the extract is distilled under vacuum to yield an oil of boiling range 400-470 DEG C., m.w. 330 and density 1.05.  10 parts of the distillate is mixed with 100 parts ethylene dichloride-sodium polysulphide polymer, 10 parts masticated rubber, 25 parts gas black, 0.35 parts diphenyl guanidine and 10 parts zinc oxide; the mixture vulcanized for 60 mins at 130 DEG  C. had a Shore hardness of 72.
Patent GB-121003-A (GB)
Title: A Lifting Drop Forging Hammer.
Inventor: BRAIN ALFRED
IPC: B21J7/44
Filed: 1917-12-15
Abstract: 121,003. Brain, A. Dec. 15, 1917. Power hammers.- In a friction-belt drop - hammer, the belt P is pressed upon the rotating pulley by a strap A having fibre blocks bolted thereto. The strap is operated by a crank-lever F, G and a hand-rope I passed round the driving-shaft. A spring buffer plate L is provided, and a rigid plate K having a narrow slot through which the fastening cannot pass if the tup breaks away. A guide-rod J and ring Q are provided for the loose end of the belt.
Patent GB-241500-A (GB)
Title: Improvements in or relating to gin rollers
IPC: D01B1/06
Filed: 1925-01-05
Abstract: 241,500. Russell, C. W. Jan. 5, 1925. Gins.-Ginning-rollers are formed by winding spirally round a wooden roller a leather belt or band the surface of which has been roughened by passing it between calender rollers provided with corrugations or grooves.
Patent GB-1363071-A (GB)
Title: Engine exhaus gas silencers
IPC: F01N1/10
Filed: 1971-07-16
Abstract: 1363071 Engine exhaust gas silencers BATEMAN MOULD & TOOLS Ltd 16 July 1971 [20 April 1970] 18729/70 Heading F1B Bodies 9 and 13 of sound-absorbing material, e.g. long stranded fibreglass, metallic mesh, stainless steel fabric, or asbestos, define, within a cylindrical casing 1, an annular flow passage 14 between openings 6 and 7 in the periphery of inlet and outlet pipes 4 and 5 projecting into the casing. Expanded metal tubes 8 and 12 contain the sound-absorbing material. The cross-sectional area of the passage 14 may be substantially equal to or greater than the cross-sectional area of the flow-path upstream of the passage and substantially equal to or less than the flow-path downstream of the passage. The tubes 10 and 11 supporting the tube 12 may have apertures.
Patent GB-924565-A (GB)
Title: Improvements relating to the production of phosphonitrilic fluorides
Inventor: CHILDS ANTHONY FRANCIS
IPC: C01B21/098
Filed: 1960-05-27
Abstract: A Phosphonitrilic fluoride of formula (PNF2) mPF5 and/or a cyclic fluoride of formula (PNF2)n, where m and n are integers and n is greater than 2, or mixtures thereof are produced by heating one or more phosphonitrilic chlorides of linear formula (PNCl2)m PCl5 and/or one or more cyclic chlorides of formula (PNCl2)n, where m and n are as before, with an alkali metal, e.g. Na, silicofluoride.  A catalyst may be used, e.g. Pb silicofluoride, NaF, PbF2 or Cu1 at a temperature of less than 450 DEG C., e.g. 250 DEG -350 DEG C.  The Naf may take part in the reaction to give with SiF4 Na2 SiF6 and also NaCl.  The phosphonitrilic chlorides are mixed with an equivalent or 10% excess of alkali metal silicofluoride, heated under N2 and the fluorides including Pb fluorides distilled.  The Si F4 formed is passed into H2O to form hydrated SiO2 and silicofluoric acid which can be precipitated with a Na salt to give Na2SiF6 which can be returned to the reaction.  Specification 895,969 is referred to.
Patent GB-811429-A (GB)
Title: Improvements in or relating to electrical cut-out devices
Inventor: BORZONI JOHN JOSEPH MARTIN
IPC: H01H61/02
Filed: 1957-06-14
Abstract: 811,429. Making electric cut-out devices. BELLING & LEE Ltd. June 14, 1957, No. 18789/57. Class 83 (2). [Also in Group XXXVII] The heating element of an electric cut-out is in the form of a blank of inverted Z-shape and rectangular cross-section obtained by stamping from a sheet of heatelement forming material, e.g. " Nichrome " (Registered Trade Mark). The ends of the blank are spot welded, preferably simultaneously, at points 6, 7 to the contact plates 4, 5 of the cutout, one of the welding electrodes engaging the plate 4 or 5 through a hole in the base plate 3, and the other being brought into pressure contact with the blank at point 6 or 7.
Patent GB-903961-A (GB)
Title: A circuit breaker having resinous insulating members
IPC: C08G59/26
Filed: 1959-06-02
Abstract: A resin prepared from a 1,3,5-triazine compound containing more than one glycidyl group and a hardener is used for insulating parts of a circuit-breaker which are exposed to arcing.  Specified epoxy compounds are 2,4,6-triglycedeoxy-, and 2-ethoxy-4,6-diglycideoxy-1,3,5-triazine.  The hardener may be an acid- or alkaline-acting compound or a metal alcoholate.  The insulating composition may also contain other resins, e.g. bis-phenol epoxy resins, aniline-epoxy resins and acid polyesters, e.g. from glycerol or glycol and adipic acid.  Fillers such as quartz powder, glass fibre and powdered porcelain are also included.  Specified hardeners are maleic acid anhydride, dodecyl succinic anhydride and phthalic anhydride.
Patent GB-187018-A (GB)
Title: Improvements in method of treating wood
IPC: B27K3/52
Filed: 1921-07-12
Abstract: 187,018. Dehn, F. B., (Studebaker Corporation). July 12, 1921. Wood, treating with liquids.-Wood is coated with enamel, for example, of the kind containing gum, linseed oil, turpentine, zinc white, and varnish, and heated slowly to about 200‹ F.
Patent GB-820077-A (GB)
Title: Improvements in and relating to photo-electric cells
Inventor: JENKINS JAMES ARCHIBALD
IPC: H01L31/08
Filed: 1951-09-24
Abstract: 820,077. Photo-cells. MULLARD RADIO VALVE CO. Ltd. July 25, 1952 [Sept. 24, 1951], No. 18857/52. Divided out of 820,075. Class 37. [Also in Group XV] A photo-electric cell is manufactured by producing lead sulphide, lead selenide or lead telluride, or any mixture thereof, on the inner surface of one part of the cell, and then heating this part while cooling the part carrying the electrodes. The cell is formed in the general shape of a Dewar flask and colloidal graphite electrodes are provided on the re-entrant face. Lead sulphide is introduced into the cell and is caused to sublime on the inner surface of the external face or is formed thereon as described in Specification 820,075. Oxygen at a pressure of 300 microns of mercury is introduced into the cell while the latter is in an oven at 550‹ to 600‹ C. and a cold air blast is repeatedly applied to the external face to prevent re-sublimation during this oxygen bake. The oven is then removed and the external face heated while the re-entrant face is cooled to - 30‹ C. or below by liquid air, to transfer the lead sulphide, in oxygen at a pressure of 0.2 to 0.3 mm. of mercury. After being given oxygen or sulphur treatment, the cell is evacuated and sealed.
Patent GB-1002222-A (GB)
Title: Marker apparatus for dictating machines
IPC: G11B25/06
Filed: 1963-05-13
Abstract: 1,002,222. Dictating machines; correction &c. slips. DICTAPHONE CORPORATION. May 13, 1963 [May 21, 1962], No. 18868/63. Heading G5R. [Also in Division G1] A stylus/belt record recorder as otherwise detailed in Specification 972,418, has a slip 44 supplied from a continuous roll 46, Fig. 9, which carries correction (lower) and end-of-letter (upper) marks 80 applied by solenoid means 54, Fig. 10, and a similar means (Fig. 3, not shown), respectively. A rocking switch on the hand-microphone (Fig. 1, not shown) energizes either solenoid as required and the chisel-ended tips of the markers 70, scrape away a small amount of an opaque white coating 78 on the underside of a transparent slip base 76, the marks appearing black in the absence of rearward illumination. A key 82 on the machine, Fig. 5, when pressed, is latched down by interengagement of means 134 with the end of member 136. As a result:- (a) Gear 102 is advanced into mesh with machine gear 118 to feed the slips by means of capstans 90, 92. (b) A member 158, Fig. 9, is released from slots 50 in the slip. (c) Contacts 124 are made to raise the heads from the record. (d) When the key 82 is released (but still latched), the member 158 presses against the underside of the slip. (e) When the member 158 can return into the Fig. 9 position on arrival of the next slots 50 in the slip, the movement rocks the member 136 to unlatch key 82, stopping the slip-feed. The slip may then be torn off at the slits 50, at at tearing-comb means (Fig. 1, not shown).
Patent GB-1062283-A (GB)
Title: A process for preparing sugarlike, non-fermentable and at the most weakly hygroscopicproducts from polysaccharides which on saccharification give dextrose, maltose or dextrose and maltose
IPC: A23L27/30
Filed: 1964-05-06
Abstract: Sugarlike, substantially non-fermentable and at the most weakly hygroscopic products are obtained by saccharification of a polysaccharide, which on saccharification gives dextrose and/or maltose, to a product with a dextrose equivalent of 15 to 75%, the remaining part of the saccharification product being dextrines and simultaneously or subsequently catalytically hydrogenating this saccharification product to a product still containing the dextrines of the saccharification product.  Any sugar remaining after hydrogenation may be removed by fermentation or made infermentable by addition of blocking additives.
Patent GB-1166016-A (GB)
Title: Method for Rendering Substrates Water Repellent
IPC: E04B1/66
Filed: 1968-04-22
Abstract: 1,166,016. Water-proofing. DOW CORNING CORP. 22 April, 1968 [15 May, 1967], No. 18880/68. Heading B2K. [Also in Divisions A5, Cl, C3 and D1] A water-proofing composition consists of 70-98% of petroleum oil having a viscosity of 20-300 SSU at 50C and 2-30% of a benzene-soluble methyl siloxane copolymer which has a ratio of Me 3 SiO¢ to SiO 2  units of 0.65- 1.2 and in which the silicon-bonded hydroxyl content is at least 0.8%. The composition may be dissolved in a solvent, e.g. kerosene, mineral spirits, toluene, or xylene. Powdered aluminium, cement, mortar, fertilizers, insecticides, carbon black, silica and titania may be treated.
Patent GB-847036-A (GB)
Title: Pallet with separable parts
Inventor: BAGNALL JULIAN VINCENT PAUL
IPC: B65D19/00
Filed: 1958-06-13
Abstract: 847,036. Pallets for handling loads. IMPERIAL CHEMICAL INDUSTRIES Ltd. May 4, 1959 [June 13, 1958], No. 18945/58. Class 78 (4). A pallet has load bearing members 13 detachably mounted on hollow members A in which the forks of a lift truck engage. As shown lugs C on the cross members 13 grip the members A. In a modification the members 13 are cylindrical and have notches gripping the members A. The pallets can be made of welded steel mesh, plastic, or fibre board.
Patent GB-160474-A (GB)
Title: Improvements in and relating to centrifugal pumps
IPC: F04D29/22
Filed: 1919-08-01
Abstract: 160,474. Wareing, J., and Hill, A. Aug, 1, 1919. Impeller blades.-Vanes 2 are cast with one or both discs of the pump drum and supplementary vanes 3 are formed with the principal vanes and arranged so that the end of each supplementary vane approaches the end of the next principal vane, thus leaving an outlet 8 for the liquid impelled from the drum. A number of chambers are formed in this construction. The area increases from the section 6 - - 6 where the liquid enters to the central section 7 - - 7, and then diminishes to the section at the outlet 8 where the sectional area is less than that of the inlet 6 - - 6. In a modification, Fig. 3, an outlet 9 is provided in each supplementary vane and the areas of the two outlets 8, 9 combined are less than that of the inlet.
Patent GB-853552-A (GB)
Title: Ultrasonic transducer
IPC: B06B1/08
Filed: 1958-06-13
Abstract: 853,552. Electro-mechanical transducers. BENDIX CORPORATION [formerly BENDIX AVIATION CORPORATION]. June 13, 1958 [July 2, 1957], No. 19043/58. Class 40(8). An apparatus for generating ultrasonic waves in a liquid medium comprises two polarized transducers and means for applying alternating driving fields to the transducers which respectively oppose and aid the polarizing field in the two transducers during one half-cycle and respectively aid and oppose this field during the subsequent half-cycle. The transducers may comprise magnetostrictive cores 20, 21 and polarizing magnets 24, 25 which together form a magnetic circuit. Each core carries a winding, respectively 28, 29, the two windings being connected in series across an A.C. driving source 33 and in parallel across a D.C. source 40. The D.C. current provides supplementary polarizing fields. The directions of the alternating and the polarizing magnetic fields during one half-cycle are indicated by arrows. In the subsequent halfcycle the directions of the alternating fields are reversed. In an alternative circuit (Fig. 2, not shown) the windings are connected in parallel across the A.C. source and in series across the D.C. source. The transducers of Fig. 4 comprise piezo-electric elements 122, 123 carrying electrodes respectively 124, 125 and 126, 127. A D.C. polarizing source 140 is connected in parallel across the two elements and an A.C. driving source 134 is connected across them in series. In a modification (Fig. 5, not shown) the elements are connected in series across the D.C. source and in parallel across the A.C. source. The transducers may be coupled to the container or containers of an ultrasonic cleaning apparatus.
Patent GB-677200-A (GB)
Title: Improvements in or relating to a method of manufacture of castings of cryptocrystalline texture
IPC: B22D27/02
Filed: 1950-08-01
Abstract: 677,200. Casting processes. CADIC COMPANIA AMERICANA DE DESARROLLO INDUSTRIAL Y COMERCIAL. Aug. 1, 1950 [Aug. 4, 1949], No. 19206/50. Class 83 (i). [Also in Group V] Castings of metal or salts are produced with a crypto-crystalline structure by subjecting the material, before or during or before and during cooling, to the continuous or intermittent influence of an electromagnetic field having a frequency of between 300-6000 per second (Hertz), but without discernable heating effect. The material may be liquid or pasty during treatment which is stated to improve mechanical resistance. The mould or vessel containing the material is placed in the field and may be earthed. In a modification the material may be arranged as part of a condenser connected in the circuit of a generator.
Patent GB-1384215-A (GB)
Title: Winding filamentary material on a core
IPC: B65H59/38
Filed: 1973-04-19
Abstract: 1384215 Control of winding speed to maintain uniform tension SIEMENS AG 19 April 1973 [21 April 1972] 19207/73 Heading DID In a traversing filament winding machine a package 2 is driven by a motor 1. A first signal x a  is derived from the peripheral speed of the package. A second signal is derived from this signal which represents the desired rotational speed of the package and is compared at 13 with a third signal representing the actual speed of the package, the difference being used to control the motor speed. The second signal is modified according to a signal derived either from the diameter of the package or the rotational speed of the package (which will be dependent on the diameter), this results in a more nearly constant filament speed by compensation from the winding helix angle. As shown the motor 1 is a d.c. machine with an electronic commutator 3 controlled from the difference forming device 13. The induced e.m.f. in the stator windings is used to form the third signal which is also amplified at 9 and used to modify the second signal. The amplifier 9 has an adjustable feedback 10 which may be non-linear.
Patent GB-978199-A (GB)
Title: Signal limiter circuit arrangement
IPC: H04N5/16
Filed: 1962-05-18
Abstract: 978,199. Transistor limiting circuits. FERNSEH G.m.b.H. May 18, 1962 [May 18, 1961], No. 19241/62. Heading H3T. A limiter circuit, Fig. 2, comprises a first transistor 3 having an output circuit including a load resistor 4, a second transistor 7 having its emitter connected to the junction of the transistor 3 and load 4, and its base connected to a constant potential such that the transistor 7 only becomes conducting when the signal input to the base of the transistor 3 exceeds a predetermined value; and an output circuit connected to the emitters of transistor 7. As described, the load 4 is connected in the emitter circuit of transistor 3, and when transistor 7 conducts any further rise in input level at the base of transistor 3 causes this transistor to cut off. The switching speed is increased by applying positive feedback from the collector of transistor 7 to the base of transistor 3 over resistors 15, 16. In a modification, Fig. 3, the connection between the emitters of the two transistors including a parallel combination of a Zener diode 20 and a capacitor 21 which provides bias for an output transistor 22 of opposite conductivity type.
Patent GB-335263-A (GB)
Title: Improvements in or relating to current collector shoes for electric railway vehicles
IPC: B60L5/22
Filed: 1929-06-22
Abstract: 335,263. English Electric Co., Ltd., and Morris, F. June 22, 1929. Shoe collectors 6 are supported by converging slotted links 7 pivoted at 8 to a carrier 3, a bias pressure being applied to the links. The bias is applied by a spring 11 normally just clear of pins 12 on the links 7 and close to the pivots 8, the spring coming into action as soon as the shoe is lifted by a ramp. The carrier 3 has serrations 5 for adjustably connecting to a frame 1 carried by cross members 2 of the vehicle, frame, the securing bolts passing through slots 4 in the frame 1.
Patent GB-912254-A (GB)
Title: Pneumatic tracks for track laying vehicles
IPC: B62D55/247
Filed: 1961-05-29
Abstract: 912,254. Endless tracks for vehicles. GOODYEAR TIRE & RUBBER CO. May 29, 1961 [Aug. 3, 1960], No. 19255/61. Class 79(1). A pneumatic endless track comprises a rubber tube 21 provided with reinforcing cords 22 extending transversely round its cross-section, at least two plies of parallel, substantially inextensible cords cross angled relatively to one another positioned between the reinforcing cords 22 and the tyre tread and a ply 25 of substantially inextensible cords in the base portion extending longitudinally of the track, the ratio of the height of the tube to the width of the tube being less than one to eight. The records may be metal wire cables. In the ply 25 the cords alternately of S twist and Z twist. Between the reinforcing cords 22 and the tread of the track, there may be three plies 31, 32 and 33, the cords in the ply 31 extending transversely across the track and the cords in plies 32 and 33 extending at 25 degrees to 15 degrees to the longitudinal axis of the track. The track may be provided with ground-engaging treads 34 and with grooves 19 and lugs 28 which engage complementary ribs and grooves in the driving wheel 11. The driving wheel 11 and track may also be provided with a complementary centrally disposed locating rib and groove. As shown, the groove 29 is in the track. The track is mounted on a driving roller 11 and smooth surface track rollers 12 and 13 provided with locating side flanges.