baber/WOPTO huggingface dataset:
Patent GB-569204-A (GB)
Title: Improvements in and relating to electric control devices
IPC: H05B1/02
Filed: 1943-08-27
Abstract: 569,204. Electric control devices. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 27, 1943, No. 13981. Convention date. Aug. 28, 1942. [Class 64 (ii)] [Also in Group XXXVII] In a thermal interrupter, a bimetallic strip 26 carrying a contact 29 is mounted on a spring support 27, and is adjusted relatively to a fixed contact 30 by a threaded member 17 bearing against a projecting plate 24, 25 which is also secured to the support 27. A heater 35 supplies heat to the strip 26, and the insulating casing 8 is provided with an external metal plate 11 which conducts heat from the interior of the housing so that its temperature follows the ambient temperature more closely. Stops are provided to limit the rotation of member 17 to about half a revolution. Snap action between the contacts 29, 30, is obtained by forming the contact 29 of steel faced with silver, and the contact 30 as a small U-shaped permanent magnet having a silver contact plate across the poles. The effect of an arc between the contacts upon the temperature of the strip 26 is minimised by restricting the cross section of the strip by means of holes adjacent to the contact. The circuit through the heater 35 is controlled by a manually controlled contact spring 38 actuated by a pivoted cam 42 having portions 44, 45, either of which project for actuation through an opening in the casing. The spring 38 is fixed at 40 and bears against a fulcrum 52 so that when deflected at the centre it closes contacts 39, 41. The cam 42 carries also a hemispherical member 48 which engages a hole in the spring 38 when. in the open circuit position. The interrupter may be connected in the primary circuit of a transformer' the secondary of which supplies current to an electrically heated blanket.
Patent GB-1309853-A (GB)
Title: Process for the production of magnesite chromite bricks
IPC: C04B35/01
Filed: 1970-03-23
Abstract: 1309853 Magnesite - chromite refractory ZDRUZENO PREDUZECE "MAGNOHROM" INDUSTRIJA VISOKOVATROSTALNOG MATERIJALA 23 March 1970 [21 March 1969] 14031/70 Heading C1.J Magnesite chromite bricks are made by pressing at >1000 Kp./cm.<SP>2</SP> and firing at 1550- 1760‹ C., preferably in the presence of a chemical binder, a mix containing (a) below 40% by wt. of a chromite made by calcining chromite having a SiO 2  content 75% and particle size >20 mm. and <250 mm. together with magnesite at 1600‹ C., separating the chromite from the magnesite and grinding it to a size 0-4 mm. so that # 30 % has size 0-1 mm. and #70% has a size 1-4 mm., and (b) below 30% by wt. of sintered magnesite made by sieving sintered granular magnesite, preferably that produced from making (a), to separate particles of size 0À5-5 mm., grinding the remainder to below 0À1 mm. and mixing the unground and ground magnesite in proportions of below 70% and below 30% respectively.
Patent GB-354321-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H01R39/08
Filed: 1930-05-07
Abstract: 354,321. Collecting-rings for dynamoelectric machines. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London, and WHITAKER, F. P., 237, Clifton Road, Rugby. May 7, 1930, No. 14055. [Class 35.] A collecting-ring is made in two concentric portions, detachably connected, the inner portion 1 being shrunk on to or otherwise secured over insulation 2 on the dynamo shaft and the outer portion 3 forming the rubbing surface. The two portions may be connected by dovetailed rings or segments 6, 7 and bolts 8.
Patent GB-874585-A (GB)
Title: Transalcoholysis of aluminium alkoxides
IPC: C07F5/06
Filed: 1960-04-22
Abstract: Alcohols are prepared by reacting an aluminium alkoxide containing from 2 to 100 carbon atoms in each of the alkoxy groups with methyl alcohol in the presence of a solvent consisting of acetone or acetonitrile or mixtures thereof, to give the corresponding alcohols and an aluminium organic compound, the exact nature of which is not known.  Preferably the starting alkoxide has 4-50 carbon atoms in each of the alkoxy groups.  The aluminium alkoxide may be used in the form of a solution, e.g. in a hydrocarbon.  Preferably at least 8 times the theoretical quantity of methyl alcohol is used and at least 56 moles of acetone or acetonitrile per mole of alkoxide. Specification 767,601 is referred to.
Patent GB-1514613-A (GB)
Title: Blade or vane for a gas turbine engine
IPC: F01D5/18
Filed: 1976-04-08
Abstract: 1514613 Gas turbine engines - blades or vanes ROLLS-ROYCE Ltd 4 April 1977 [8 April 1976] 14221/76 Heading F1T A blade or vane for a gas turbine engine comprises a roof portion 17, a platform 18, an aerofoil portion 19 and a shroud formed of portions 20, 21. Cooling air passages 23, 24, 25 extend through the blade from an inlet chamber 22, the passages terminating in a series of passages formed in the shroud portion 20 which is thereby cooler. The shroud portion 20 is formed integrally with the aerofoil portion and is formed on its radially outward surface with three sets of grooves 26, 27, 28, the groove 26 communicating with the cooling air passage 23, the grooves 27 communicating with passage 24, and the groove 28 communicating with passage 25. The second shroud portion 21 is secured to the portion 20 eg by brazing so as to close off the open sides of the grooves the grooves being open at the trailing edge side for discharge of a cooling air.
Patent GB-449934-A (GB)
Title: Improvements in electrical connections
IPC: H01R4/50
Filed: 1935-05-15
Abstract: 449,934. Two-part couplings. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and DUKE, S. M., c/o General Electric Co., Ltd., Wembley, Middlesex. May 15, 1935, No. 14232. [Class 38 (i)] Two conducting members 1, 7 are connected together by interfitting cones 2, 3 so formed that the virtual apex A of the cones lies in the plane of the surface 6 against which abuts a member 5 by which the two conductors are drawn together. As shown the member 1 is formed with a screwed stem on which a nut 5 screws. The members 1, 7 may be of different materials, the difference in coefficients of expansion being nullified by the construction described in so far as concerns a tendency to separate the conical surfaces 2, 3. Specification 6551 /13, [Class 38 (i)], is referred to.
Patent GB-938452-A (GB)
Title: Stud tensioner
IPC: B25B29/02
Filed: 1962-04-12
Abstract: 938,452. Applying predetermined tensions to bolts. DIAMOND POWER SPECIALTY CORPORATION. April 12, 1962 [April 14, 1961], No. 14264/62. Class 89 (1). A stud tensioner 11 comprises a pedestal 21 above which is located a cylinder 23 with piston 26. An annular withdrawal bar 29 threaded to piston extension 27 extends downwardly through a hollow portion 31 of the pedestal. A self-aligning connector 34 within the drawbar is supported on a concave surface 33 of inward extension 32 of the drawbar. Said connector is internally threaded so as to be threadable on to a stud 15 and attached by a gimbal 38 to telescopic tubular guides 37 and 39, the upper end passing through the hub of gear 47 and is rotatable therewith. Between the cylinder and pedestal is positioned a spherical bearing 65 with upper and lower annular elements 67 and 66, respectively, the upper element being rigidly secured to undersurface 59 of the cylinder, the lower element being supported from the upper by a number of chains 71 to permit freedom of alignment. The pedestal itself is connected to the cylinder by flexible links 56. In operation the tensioner 11 is lowered over a stud on to face 24 of a machine part and the drawbar centred thereover to engage with the threaded portion on said stud. The lateral freedom permitted by the links of the pedestal, cylinder and spherical bearing permits selfalignment of the device with all bearing surfaces in engagement. The rotation of the gear-wheel 47 by the bevel gear arrangement with subsequent rotation of guide 39, tube 37 and connector 34, threadedly engages the drawbar on the stud. Hydraulic pressure applied to chamber 77 beneath cylinder 23 will then exert a tensile force on the stud to permit tightening or slackening of the nut thereon.
Patent GB-1000076-A (GB)
Title: Improvements in ignition systems
Inventor: ULREY LAWRENCE STANTON
IPC: F02P7/03
Filed: 1964-04-07
Abstract: 1,000,076. Ignition systems. COOPER-BESSEMER S.A. April 7,1964, No. 14250/64. Heading F1B. An ignition system comprises a triggering circuit including a trigger capacitor 47 charged from a D.C. source 17, 41 when a pair of contact points 39 is closed, a transistor 42 and means providing for conduction of the transistor when the contact points open thus providing a triggering signal for a discharge device 22. The discharge device 22 may be a silicon controlled rectifier or a thyratron. The turning off of the device is accomplished by using the back voltage generated by the ignition transformer 29.
Patent GB-351660-A (GB)
Title: Improvements in the means of forming door and casement window openings in concrete building construction
IPC: E04G15/02
Filed: 1930-05-09
Abstract: 351,660. Casting door and window frames in situ. CAREY, W. L. DE M., 52, Norfolk Square, Hyde Park, London. May 9, 1930, No. 14306. [Classes 20 (ii) and 20 (iii).] Door and window frames are cast in situ when building concrete structures by means of removable shuttering a, b, c, having tongue and groove engagement c<1> and held together by a metal clamp d. The fixed half of the hinges j, moulds e for the architraves, and a strip g may be held by the shuttering when casting.
Patent GB-1391485-A (GB)
Title: Anchorgaes for absorbing heavy loads into a part of a concrete structure
IPC: E04C5/12
Filed: 1972-03-27
Abstract: 1391485 End anchorages DYCKERHOFF & WIDMANN AG 27 March 1972 [27 March 1971] 14329/72 Headings E1B and E1W An anchorage for fixing a stressed tension member in concrete consists of tension elements 2, 2' disposed within a cover 3 by polyethylene spacers 4 and a perforated disc 17, the elements 2, 2' being secured by nuts 24 to anchor bodies 23 and the cover 3 being provided with nuts 10 to embed it in the concrete as shown. The cover 3 is made of plastics or metal whilst the inner portion 3' thereof is made of metal and blanked off by a closure plate 21 emerging into steel tubes 22 to receive the elements 2, 2'. Additional tensioning members 11 are anchored to a ring 13 arranged as shown for details of which to-gether with means such as 16, 20, 26 for injecting sealants into the various cavities shown the Specification should be referred to.
Patent GB-110359-A (GB)
Title: Improvements in or relating to Electric Motors.
Inventor: TANNER HARRY LAURENCE
IPC: H02P23/00
Filed: 1916-10-27
Abstract: 110,359. Tanner, H. L. July 19, 1916, [Convention date]. Alternating-current motors.-A reversible induction motor for use on a three-phase circuit has a main stator winding B connected to the two terminals e of the three-phase generator E and two oppositely-wound auxiliary windings C, C' connected, preferably through a resistance D, to an intermediate point of the main winding B. One of the windings C, C' is connected to the third terminal e<1> of the generator through a switch comprising contacts f, f<1> and a trolly or bush f<2>, the motor rotating in one direction or the other according tothe auxiliary winding which is connected in circuit. Specification 108,149, [Class 97 (iii), Thermometers &c.], is referred to.
Patent GB-312352-A (GB)
Title: A method of and apparatus for reducing the cross-sectional area of bars
IPC: B21J7/18
Filed: 1929-05-08
Abstract: 312,352. Pipe & Tube Bending Corporation of America, (Assignees of Neuberth, G. E.). May 25, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Rolling tubes; housings; driving- gear.-Tubes and bars are rolled in a tandem train of segmental oscillating rolls. A carriage 28 serves as housing for two or more pairs of segmental rolls 52, 54 each pair being maintained in phase by meshing tooth segments, the segments on one of each pair being wide enough to engage also a rack 62 secured to the frame. The carriage is reciprocated by a connecting-rod from a crank 30 driven by the gearing shown through a hand-controlled clutch 45. The backing-up members 70, 71 for the roll bearings 50, 51 are in the form of screw-adjusted wedges. The carriage is reinforced by tie bolts 77. Roll pass.-The grooves in the rolls 52 are eccentric but are formed to release the tube at each end of the stroke. The grooves in the rolls 54 are in part eccentric and in part concentric, but are also relieved at each end. Mandrels.-The part of the mandrel 80 lying between the rolls is slightly tapered. Mandrel and like supports and feeds. - The mandrel is reduced at its rear end for engagement by a pivoted latch 165 that prevents it from axial movement during operation. At the end of the active stroke of the rolls a rod 85 connected to the carriage by means of a collar 131 yieldingly held in place by a spring 132 actuates a bell crank 139 traversing a rack 146, Fig. 15, meshing with pinion teeth on a sleeve 150 carrying a pawl 157 engaging ratchet teeth in a sleeve 159 splined to the mandrel. The tube is thus rotated a quarter-turn between successive rolling steps. A guide tube 81 surrounds the mandrel for part of its length and is of sufficient diameter to accommodate the work also. When the tube length under treatment has nearly passed through the mill, a second catch 172 is lowered to restrain the mandrel, the catch 165 is raised and the sleeve 159 is withdrawn, leaving clearance for feeding in a new tube from the rear of the machine. The step-by-step feed is imparted by a clamp 117, Fig. 6, movable against a spring brake in a guide channel on the frame. At the end of the idle stroke a collar 87 on the rod 85 swings a lever 90 linked to an arm 99 pivoted at 101 and provided with a cam end. The clamp is thus first closed on the tube, further movement then advancing the tube. On the commencement of the next rolling stroke the clamp is first released, interposed springs helping the separation, and then the arm 90 is arrested by a pin 122 and the clamp is returned to its initial position.
Patent GB-887162-A (GB)
Title: Improvements relating to digital computers
Inventor: PROCTOR WILLIAM GERALD
IPC: G06F3/06
Filed: 1957-05-07
Abstract: 887,162. Digital electric calculating-apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 1, 1958 [May 7, 1957], No. 14511/57. Class 106 (1).  An electrical digital computer has an arithmetic circuit, a store, access to which is determined by a control circuit and means whereby information fed to the input is passed directly to the control circuit so as to cause the transfer from the store to the arithmetical circuit of the original information converted to the form required in the computer. As described, input data in binary-coded decimal form is applied to a control circuit which causes transfer from the store of a machine to the arithmetic unit of a binary representation of the input data. Characters in binary-coded decimal form on a 5-hole punched tape are read by a reader R, the binary signals produced being converted to serial form on a line X. The contents of the control register C normally increase by one as each instruction is obeyed, pulses for this purpose being applied at Y, but when an instruction calling for the transfer of an input tape character to the control register occurs, a signal is applied to a line Z to open a gate G7 and close a gate G8, so that the required transfer is effected, the computer taking its next instruction from the new address now stored in the control register C. A modification is described (Fig. 3, not shown), for a machine in which each instruction contains the address of the next instruction. Specification 851,418 is referred to.
Patent GB-691926-A (GB)
Title: Vehicle window regulators
Inventor: PERKS FRANK
IPC: E05F11/44
Filed: 1950-06-12
Abstract: 691,926. Vehicle window regulator. DETROIT HARVESTER CO. Aug. 22, 1951 [June 12, 1950], No. 14584/50. Class 20(iii) A vehicle window regulator comprises a crank arm c, a window support m having a slide k formed on or secured thereto, a two-part toggle-like link o, p interconnecting the crank arm and the window support, a guide j along which the slide is movable, and toothed gearing f, g for actuating the crank arm. The crank arm c is supported on a pivot d in a plate a beneath the vertically sliding window b, and has an arcuate gap e with gear teeth f which engage the toothed pinion g carried by a spindle h on plate a. The crank arm is loaded by a spirally coiled spring i concentric with pivot d and connected at opposite ends to the pivot and crank, and serving to counterbalance the window. The vertical channel section guide j is secured to plate a. The toggle link is pivotally attached at one end to the centre of support m and at the other end to the crank arm c, the two parts o, p being pivotally interconnected and prevented from relative movement in one direction by an abutment q on one of the link parts. The pinion g is actuated by a handle s connected to the pinion in any conventional manner, e.g. directly attached, or, as shown, operating through sprocket wheels r and t and chain u. In the upper position of the window, as in Fig. 1, and for about half the sliding movement the links o, p are in alignment, but on further movement an edge v of the crank arm abuts on edge of link p and the links become increasingly inclined, Fig. 2.
Patent GB-1384481-A (GB)
Title: Percussive photoflash lamp array
IPC: F21K5/12
Filed: 1973-03-27
Abstract: 1384481 Photo-flash apparatus GTE SYLVANIA Inc 27 March 1973 [6 June 1972] 14741/73 Heading G2X A multi-lamp flash unit comprises a substantially planar base 16, a substantially planar wall 18 secured and perpendicular to base 16, a plurality of percussively-ignitable flash-lamps 10 mounted on one side of wall 18 with the longitudinal axes 68 of the lamps parallel to base 16, a plurality of pre-stressed strikes 28 mounted on wall 18 and releasable to fire the flash-lamps, a selective actuating mechanism supported on the wall member and having indexable means for sequentially releasing the strikers to fire respective flashlamps in responsive to successive indexing of the mechanism. As shown the unit contains two rows of four flash-lamps 10 and is insertable in a flash-cube socket; the selective actuating member comprises two gears 30, (32) having ramps 34 as described and claimed in Specification 1384482.
Patent GB-1582374-A (GB)
Title: Camera tube
IPC: H01J29/89
Filed: 1977-04-07
Abstract: The optical cross-talk in a camera tube is reduced by the provision of a filter element which overlaps the entire target. The filter may be arranged in front of the photosensitive target and have a spectral transmission which is adapted to the spectral sensitivity of the target. The filter may also be arranged behind the target and preferably constructed so that it is also low-reflective for incoming light. In order to prevent excessive transverse conduction, such a filter may have a mosaic structure consisting of mutually insulated areas. Optical cross-talk may also be reduced by mounting the target on a support which is separately arranged in the camera tube and which has a small thickness.
Patent GB-113980-A (GB)
Title: Improvements in Voltage or Current Regulators for Dynamo Electric Generators.
Inventor: JULLIN ALEXIS JOSEPH
IPC: H02J7/18
Filed: 1916-10-18
Abstract: 113,980. Jullin, A. J. Oct. 18, 1916. Dynamos, regulating.-The field magnet winding 2, Fig. 5, of a variablespeed dynamo is connected to the point of junction of an automatically - varied resistance 4 and an auxiliary resistance 4<1>.
Patent GB-900137-A (GB)
Title: Spring units and cushion constructed therefrom
Inventor: FLINT HYLAND CASE
IPC: B60N2/70
Filed: 1961-04-25
Abstract: 900,137. Spring upholstery. AMERICAN METAL PRODUCTS CO. April 25, 1961, No. 14886/61. Class 52 (4). In a spring cushion structure 10 with a baseframe 11 having spring units 12 secured thereto each unit has a base element 16 with rear section 17 and front section 18 and a load-bearing section 19 with a rear section 22 secured by a clip 24 to offset portion 23 of the base element and an offset portion 26 secured similarly to a part 28 of the base element. A border wire 75 is secured to the assembly by clamping bands 76. U.S.A. Specification 2,684,844 is referred to.
Patent GB-221020-A (GB)
Title: An ornamental receptacle for containing ordinary pots, jars or tins of food and the like
IPC: A47G19/18
Filed: 1923-06-07
Abstract: 221,020. Lock, H. June 7, 1923. Stands.-An ornamental receptacle for pots, jars, or tins of jam, treacle, &c. comprises a body portion 1, provided with a rim 3 to engage the edge of the pot &c. and lid 4, either the base 2 or rim 3 being removable to permit the introduction of a pot &c. The base 2 may be integral and the rim 3 retained frictionally or by screwing, or the rim may be integral with the body and the latter screwed on to the base. The body is provided with a handle 5 and the lid is provided with the usual recess 12 for a spoon.
Patent GB-1502725-A (GB)
Title: Pool-type triangle
IPC: A63D15/00
Filed: 1977-02-16
Abstract: 1502725 Snooker triangle HAZEL GROVE MUSIC CO Ltd 16 Feb 1977 [13 April 1976] 14978/76 Heading A6H A triangle has a projection on one side to space it from the cushion or to set it at an angle to the cushion.
Patent GB-988034-A (GB)
Title: Cation sensitive glass electrode and methods of producing same
IPC: G01N27/36
Filed: 1963-04-17
Abstract: A part of the surface of an ion-sensitive glass membrane forming an electrode for measuring ion potential is modified by exposing the membrane at elevated temperature to a compound of a metal with an atomic weight at least as great as copper, e.g. silver, gold, platinum, or lanthanum, and then restoring the sensitivity of the remainder.  The temperature should be within the annealing range and the metal compound can be in molten or gaseous condition.  In order to reduce the area of the desensitized portion, wherein surface alkali metal ions have been replaced by the heavier metal ions, for use for example in determining the pH in the interiors of single living cells, the surface is ground or etched to remove the desensitized ions. U.S.A. Specification 2,829,090 is referred to.
Patent GB-254085-A (GB)
Title: Improvements in or relating to sheet glass for use in windows and the like
IPC: F21S11/00
Filed: 1925-06-09
Abstract: 254,085. White, A. E., (Mississippi Glass Co.). June 9, 1925. Glass with surface designs.- A sheet of glass has a plain surface and a figured surface formed with two series of parallel V-shaped grooves 2, 3 running diagonally across the sheet. The grooves intersect one another and form parallel rows of pyramids 4. A sheet as shown, when used as a window pane, deflects part of the light passing through it towards the ceiling.
Patent GB-746492-A (GB)
Title: Improvements in one-layer magnetisable sound recording material
IPC: G11B5/70
Filed: 1953-05-29
Abstract: 746,492. Magnetic dust structures. BADISCHE ANILIN- & SODA-FABRIK AKT.-GES. May 29, 1953 [May 30, 1952], No. 14994/53. Drawings to Specification. Class 38 (2). A magnetizable sound record carrier in tape or disc form comprises in a single layer not thicker than 35 microns, a film forming material containing a finely-dispersed magnetizable material such a Y-iron oxide or magnetite. In one example, sheets of a thickness of 20- 60 microns are made by rolling at 160-170‹ C. a mixture of 40 parts of powdered magnetite with 60 parts of a high-polymer vinyl chloride containing lubricating agents and stabilizers. The thickness of the sheets is reduced to about half by stretching to 2.8 of their original length at 110‹ C. after heating for some seconds to 240‹ C. The sheet is cut into tapes which have improved frequency response, freedom from modulation noise, and echo and erasing effects. The proportions and conditions may be somewhat varied, and also described is the casting of a sheet from a mixture of magnetite with high-molecular collodion cotton dissolved in butyl acetate, butanol and toluene. Polyamides and polyurethanes may be used. Reference has been directed by the Comptroller to Specifccation 631,312.