baber/WOPTO huggingface dataset:
Patent GB-812702-A (GB)
Title: Method and apparatus for the continuous production of metallic beryllium
IPC: C25C3/34
Filed: 1956-04-04
Abstract: 812,702. Producing beryllium electrolytically. BERYLLIUM CORPORATION. April 4, 1956 [Dec. 22, 1955], No. 10269/56. Class 41. Beryllium is produced in an electrolytic cell having an anode 19 in a tubular cathode 14 by depositing metallic beryllium electrolytically on the cathode from a beryllium-containing electrolyte, periodically removing at least a portion of the beryllium from the cathode, and removing the beryllium from the cell. In one embodiment the cell comprises a tank 10 into which depend tubular nickel cathodes 14 supported by flanges on channel members 13 and having graphite liners 15 to facilitate removal of the beryllium flakes by vertically movable rings 18 connected through rods 17 with a yoke Y periodically operated by pistons P in cylinders C at each end of the cell. Carbon anodes 19 are suspended centrally of each cathode 14 from insulating bushings 21 bolted over apertures 20 in the cover 11. A vertical arm 28, Fig. 6, on a scraper 30 is attached at 42 to a periodically driven endless belt 43 which thereby reciprocates the scraper 30 along the floor of the cell to sweep beryllium removed by the rings 18 into a raisable basket 36 in a sump 12. The negative connection to the cell is at 23a, readings on a voltmeter V and ammeters A, A<SP>1</SP> indicating when operation of of the rings 18 and scraper 30 is necessary. All parts are of nickel except the anodes 19 and liners 15. A heater 10<SP>1</SP> is provided, a temperature of 350‹ to 380‹ C. being maintained in the cell, the electrolyte being 40 to 70 per cent by weight beryllium chloride and the balance sodium chloride. Voltages of 5.5 to 7 and amperages of 500 are mentioned. Fresh beryllium chloride is periodically added to the cell, and may be first subjected to a preelectrolysing operation to purify it, e.g. for 3 hours at 5 to 6 volts and 150 amperes. The metal produced by the main process is washed first in water and then in nitric acid. In another embodiment, the rings 18 and the scraper 30 are manually operated.
Patent GB-591036-A (GB)
Title: Improved method of and means for keying contiguous surfaces
IPC: E04F13/02
Filed: 1945-04-26
Abstract: 591,036. Plastering. FRIPP, S. T. April 26, 1945, No. 10537. [Classes 20 (ii) and 20 (iv)] In order to key plaster to concrete c recesses are formed in the concrete during casting. The recesses are formed by inserting blocks a, which may be secured to the shuttering b, in the concrete and removing them when the concrete has set. If the blocks are not secured to the shuttering they may be provided with a pin &c. d to facilitate their removal.
Patent GB-1093163-A (GB)
Title: Fluid shift register
IPC: F15C1/12
Filed: 1965-03-12
Abstract: 1,093,163. Fluid shift registers. SPERRY RAND CORPORATION. March 12, 1965 [March 23, 1964], No. 10597/65. Heading G4P. A binary input " 1 " or " 0 " at one of the inputs 11, 13 deflects the flow at the commencement of a pulse at nozzle 9<SP>1</SP> into one or other of the output channels 21<SP>1</SP>, 23<SP>1</SP> of the first amplifier stage 25<SP>1</SP> of a shift register, this flow then being sufficiently delayed at 31<SP>2</SP>, 37<SP>2</SP> to deflect the flow at the next amplifier stage at the start of the second pulse. The third amplifier stage is similarly deflected at the third pulse, new binary digits being entered at 11, 13 for each pulse at the nozzle 9<SP>1</SP>. Thus for each pulse a binary digit is transferred from one amplifier stage to the next. The magnitude of the attenuated power stream in the channels 17, 19 is sufficient to direct the pulse once it has began to flow. In an alternative embodiment in which a binary 0 is represented by the absence of fluid flow the bi-stable amplifiers of Fig. 2 may be replaced by " one-sided " amplifiers.
Patent GB-955651-A (GB)
Title: Improvements in drill steel guide
IPC: E21B19/24
Filed: 1963-03-18
Abstract: 955,651. Percussive drills. ATLAS COPCO A.B. March 18, 1963 [March 29, 1962], No. 10637/63. Heading B4C. A guide for a percussive drill steel comprises a pair of arms 19, 20 pivotable on a base 10 so that guiding ends 21 on the arms can be moved between open and closed positions, snap overcentre spring means 38, 39, 41 being provided for maintaining the arms in the open or closed positions. The arms 19, 20 are pivoted on spacer tubes 16 clamped to a base 10 by means of a plate 15 and bolt 13, the base being provided with lugs 11 for attachment to a drilling machine feed bar. The over-centre spring means includes a pair of springs 38 located in bores 37 formed in an extension 35 of the lever 19, the springs co-operating with spherical-shaped plungers 39, 41 engaged in correspondingly shaped recesses formed in an extension 36 of the lever 20; alternatively, the springs and plunger may be replaced by a block of rubber fitted under axial compression. A handle 30, 31 is provided for opening the arms and is connected to a rod 26 pivoted on the arm 20, the handle being retained in the closed position by means of a conical portion 32 thereon being urged by a spring 29 into engagement with conical recesses 34 formed in the arm 19.
Patent GB-764539-A (GB)
Title: A screw locking device
Inventor: GAFFNEY EDWARD NORMAN
IPC: F16B39/284
Filed: 1954-04-12
Abstract: 764,539. Locking screws and nuts. LUCAS (INDUSTRIES), Ltd., J. June 27, 1955 [April 12, 1954], No. 10653/54. Class 89 (1). A screw locking-device comprises a plate b having a number of screwed holes b<SP>1</SP> for the screws a to be locked, which screws engage 'screwed holes c<SP>1</SP> in a member c, and a binding screw d inserted through said plate to engage the member, so that when the screw is tightened the other screws are secured against accidental movement. The screw d may pass through a plain bore in the plate to engage a screwed bore d<SP>1</SP> in the member or, alternatively, engage a screwed bore in the plate and abut the surface of the member. In another arrangement, the holes c<SP>1</SP> are tapped to receive externally-screwed units which are engaged by the screws a.
Patent GB-736306-A (GB)
Title: Improvements in vehicle suspension assembly
IPC: B62D21/00
Filed: 1952-04-28
Abstract: 736,306. Vehicle frames. AUTO UNION GES. April 28, 1952 [April 30, 1951], No. 10699/52. Addition to 734,267. Class 79(4). [Also in Group XXXII] In a vehicle suspension assembly the forwardly extending free ends 3 of the longitudinal frame members 1 as in the parent Specification are inclined upwardly with respect to the remainder of the frame. In the preferred embodiment the ends 3, which may converge or diverge or be parallel, are tubular, are welded to a front transverse frame member 2, and are inclined upwardly to an angle of 25 degrees. Each end 3 houses a torsion spring (not shown) having a wheel carrying arm 4. The wheel is also carried by a lower arm 6 connected to the vehicle body 7.
Patent GB-106891-A (GB)
IPC: H01R33/00
Abstract: 106,891. Westwood, r. July 11, 1916. Battery lamps.-In a portable lamp, short-circuiting is prevented by an insulating shield placed over the terminal strips of the battery and detachably carried by one of them In one form, the shield i has near one bent end a slot to allow it to be slipped over the long terminal b, and near its other end a hole for the passage of the short terminal c, which forms one member of a sliding or other switch. The long terminal b presses against a tongue l cut out from the shield, and is engaged by the centre contact of the lamp through a small hole in the tongue. The shield is of such size as to prevent shifting of the battery within the case, and may be provided with wings n limiting inward motion of the battery during insertion. It may also have extensions spacing the battery from the case. In a modification, the shield, except for the tongue, is flat and is fastened, to the long terminal by a metal staple. In another form, the tongue is a separate insulating plate, riveted to the lower face of the shield near the short terminal; the central lamp contact passes through a small hole in the tongue, and a larger hole in the shield. In a further modification, the long terminal is clipped between two plates, secured together by a metal band, the upper plate serving as the tongue and not extending to the short terminal. Any of the above forms may be modified by attaching to the shield metal plates making contact with the terminals and with the lamp and the switch member, the short terminal being bent down nearly onto the top of the battery. The metal plate in contact with the long terminal may then be arranged for use with a side lamp replacing the end lamp shown. According to both Provisional Specifications, the shield may be attached to the case by means of the wings, instead of being carried by the terminal
Patent GB-107037-A (GB)
IPC: F24B1/00
Abstract: 107,037. Masuda, T. Nov. 23, 1916. Ovens.-A collapsible cooking-oven heated by charcoal &c. consists of side and back plates 1. 2, 3, Fig. 1, connected by slipping the bent-over edges of the plates one into the other as shown, and is fitted with removable top and bottom plates. It has a sliding door at the front, a perforated shelf, and a grid inside. and is heated by fuel placed in a perforated opentopped box e supported in a sheet-metal stand f, Fig. 5, resting on the bottom plate.
Patent GB-380389-A (GB)
Title: Improvements in d.c. dynamo-electric machines with interpoles
IPC: H02K23/24
Filed: 1932-04-14
Abstract: 380,389. Commutating poles for dynamo-electric machines. ENGLISH ELECTRIC CO.. Ltd., 28, Kingsway, London, and VOELCKER, J. W., 5, Beechwood Avenue; Shipley, Yorkshire. April 14, 1932, No. 10705. [Class 35.] In a multipolar machine having the height of the yoke 1 less than its width, the core-portions 6 and coils 7 of the interpoles are displaced relatively to the pole-shoes 8 which are approximately in their normal positions, alternate core-portions being displaced in opposite directions.
Patent GB-1383843-A (GB)
Title: Nut and captive washer assembly
IPC: F16B37/02
Filed: 1972-03-08
Abstract: 1383843 Locking nuts TRW Inc 8 March 1972 [8 March 1971] 10737/72 Heading F2H A nut 2 with a captive frusto-conical lock washer 10 has inner and outer tubular parts 4, 8 joined together at one end by a bridge portion 6, the inner part 4 being internally screwthreaded and having an external annular rib 26 near its free end against which the washer 10 is rotatably secured by a lip 30, the outer part 8 having a skirt 16 at its free end which bears on the convex surface 20 of the washer 10 intermediate its inner and outer edges. When the nut is threaded on a bolt and tightened against a workpiece, the skirt 16 presses against the washer 10 to tend to flatten it. In the final stage of tightening, the bridge portion 6 deforms so that the inner part 4 is drawn towards the workpiece and applies a flattening force to the inner edge of the washer, the washer simultaneously pressing the inner part 4 against the bolt thread. The outer part 8 of the nut is of hexagonal section. The rib 26 is of triangular cross-section and forms with the lip 30 an annular V-groove in which the V-section inner edge of the washer engages loosely. The engaging surfaces may be slightly convex in radial cross-section. The washer may have peripheral teeth (54) (Fig. 7, not shown) to grip a workpiece. In a modified nut (Figs. 8, 9, not shown) the end of the inner part (4b) adjacent the bridge portion 6(b) is of conical hexagonal form. This feature is claimed in Specification 1,383,844.
Patent GB-375004-A (GB)
Title: Improved terry towel
IPC: A47K10/02
Filed: 1931-04-13
Abstract: 375,004. Terry towels. HOLT, W., Woodleigh, Woolfold, Bury. April 13, 1931, No. 10763. [Class 142 (iv).] A terry towel with warps all of the same material, preferably cotton, has, in addition to the ground warp, two sets of terry warps, one set producing a soft absorbent surface of terry loops on one side, whilst the other set, which is composed of yarns having two or three times as many turns per inch as the yarns in the other set of terry warps, produces a rough friction surface of terry loops on the other side. The two sets of terry warps preferably comprise loosely twisted and hard twisted yarns respectively. They may comprise doubled two-fold yarns of six and eighteen, or ten and twenty-four turns per inch respectively. The several warps may be dyed different colours.
Patent GB-677581-A (GB)
Title: Improvements in or relating to aircraft windows and to duct-connecting fittings therefor
IPC: B64C1/14
Filed: 1950-05-02
Abstract: 677,581. Valve accessories. VICKERS-ARMSTRONGS, Ltd., and DACRE, J. A. March 2, 1951 [May 2, 1950], No. 10797/50. Class 135 [Also in Group XXVIII] In a fitting for connecting a pipe to the space between two transparent panels of an aircraft window, a valve body 10 is secured in the opening 11 of one panel, and a valve member 14, adapted to be raised from its seat 15 when the pipe is screwed into a plug 19, is so arranged that an indication as to whether the valve is open or shut is visible through the other panel. The spring-loaded valve member is supported in the bore of the body on each side of the seat 15, and the bore is open to the space between the panels through one or more ports 22. The valve stem 14a may be arranged to lie flush with the end face of the body either when the valve is closed or when fully open. The stem may have markings to show the extent of its projection beyond the body. Specification 640,554 is referred to.
Patent GB-800010-A (GB)
Title: Improvements in or relating to semi-conductive devices
Inventor: WATKINS THOMAS BROWN
IPC: H01L21/288
Filed: 1954-04-13
Abstract: 800,010. Semi-conductor devices. MULLARD RADIO VALVE CO., Ltd. Jan. 25, - 1955 [April 13, 1954], No. 10876/54. Class 37. An alloy electrode in a semi-conductor device is provided by heating a layer of impurity on the semi-conductor body while a jig is placed on top of the layer but spaced from the body. The jig comprises a surface which contacts the layer and does not react or alloy with the impurity. Graphite, porcelain, silica and glass are suitable materials for the jig. The arrangement facilitates control of the alloy process. Fig. 1 shows an N-type germanium crystal 1 with a deposit of indium 2 over a predetermined area, secured between a base 4 and jig 3 of graphite The assembly is heated to 500‹ C. for ten minutes during which time the jig is moved nearer the crystal as shown by broken lines. In Fig. 2, the indium layer 2 is applied in a stepped formation, and the contact surface of the jig 3 is consequently inclined. The indium may be electrodeposited by immersing germanium in a bath of indium sulphate having a pH value of about 2, first connecting the germanium as an anode for etching and then as a cathode for deposition. Cellulose acetate or polystyrene may be used to mask the germanium where deposition is required over a restricted area only. Alternatively the indium may be in the form of a wafer, or may be provided by vacuum deposition. The invention is particularly suitable for a field effect transistor.
Patent GB-1379953-A (GB)
Title: Pourable storable polymerisable lactam-catalyst-activator mixture
IPC: C08G69/00
Filed: 1972-03-09
Abstract: 1379953 Lactam polymerization BAYER AG 9 March 1972 [21 Aug 1971] 10941/72 Heading C3R A pourable, storable, polymerizable mixture comprises at least one lactam having # 5 ring- members, at least one activator, and a catalyst component being (A) an alkaline catalyst or (B) an 8-90% wt. solution of an alkaline catalyst in a lactam having # 5 ring-members; the catalyst component, and optionally the activator, is embedded in an organic material which is solid at room temperature and contains at least one hydrophobic radical, and which, at polymerization temperature, melts or dissolves, thus releasing the catalyst, permitting anionic polymerization. Based on the catalyst component and activator, if this is to be embedded, there may be 1-500% wt. of the embedding material, which may be a wax-like compound with m.p. about 50 C., the hydrophobic radical(s) having #10 C atoms. It may be paraffin wax, polyolefin, C 10-30  fatty alcohol, C 10-30  fatty acid or ester, amide or imide thereof, a natural or synthetic wax or fat, or a C 10-30  ketone. The lactam may be #-pyrrolidone, or #-capro-, oenantho-, caprylo-, or lauric lactam. Based on lactam, there may be 0À1-20 mole per cent of the activator, which may be an isocyanate, masked isocyanate, carbodiimide, triazine, or N-acyllactam. Based on the lactam, there may be 0À1-20 mole per cent of the catalyst, which may be an alkali or alkaline-earth metal compound of a lactam, C 1-6  aliphatic acid, or C #6  alcohol, or a sodium phenoxide, or a hydride, hydroxide, or carbonate. The mixture may be prepared by mixing the catalyst component with or without the activator with the embedding material, melting, cooling, comminuting, and mixing with the lactam and activator, if this remains to be mixed. Or the embedding may be performed, e.g. by spray-drying, fluidized-bed coating, electrostatic spraying, coacervation, precipitating polymers from their solutions, or phaseinterface in-situ polymerization. The lactam and activator may be premixed by dissolving the activator in molten lactam and cooling. Polymerization may be performed at 140- 300 C. Additives which may be present include regulators, e.g., butyl acetamide; carbon black, TiO 2 , or phthalo cyamines; plasticizers; mouldrelease agents; glass fibres or mats, or fibrous asbestos, or organic fibres, glass balls, CaCO 3 , or bentonite; flame-proofing agents, e.g., red P, organic halogen compounds, phosphoric esters, or metal oxides; blowing agents, e.g. azides or hydrocarbons; or polycaprolactam waste, nylon 66, or polystyrene. The mixture is stored in sealed containers in the absence of moisture. Specification 1,343,096 is referred to.
Patent GB-1467431-A (GB)
Title: Temperature compensation of resistors
IPC: H03F1/30
Filed: 1974-05-21
Abstract: 1467431 Circuits for temperature compensation of resistors INDUSTRY SECRETARY OF STATE FOR 21 May 1974 [7 March 1973 14 Aug 1973] 10958/73 and 38424/73 Heading H3 Changes in voltage across a resistor R A  with temperature are corrected by connecting the resistor in the negative feedback path of an amplifier and connecting the output of the amplifier across a potentiometer including a thermistor which varies in temperature with the resistor. In Fig. 1 the potentiometer comprises fixed resistors 14, 18 and a thermistor 16. The resistor 14 may be omitted (Fig. 2, not shown) or the thermistor shunted by a variable setting-up resistor (24, Fig. 4a, not shown). In the latter arrangement the output may be taken from the input end of the thermistor or from the slider of a potentiometer connected in parallel with the thermistor (Figs. 4b, 4 and 4c, not shown). In a further embodiment, the output circuit of the amplifier comprises a bridge network formed by potentiometer (R X , B Y , Fig. 5, not shown) and two resistors (14, 18) with the thermistor (16) connected between the slider of the potentiometer and the common point (20) of the resistors (14, 18) from which the output is taken. The resistor 20 and thermistor 16 may be mounted in adjacent apertures in a metal block (Fig. 3, not shown).
Patent GB-610928-A (GB)
Title: Improvements relating to electromagnetic clutches
IPC: F16D27/08
Filed: 1946-04-10
Abstract: 610,928. Electromagnetic clutches. LUCAS, Ltd., J., and LAIRD, J. A. April 10, 1946, No. 10975. [Class 80 (ii)] The wear in an electromagnetic friction clutch is automatically compensated without affecting the relationship of the armature and its co-operating part by screw-thread means between a pair of the clutch parts. A clutch plate c, splined to a sleeve f which is splined on the driven shaft g, is clamped by the energization of the winding j and attraction of the armature k between the driving members a, b which are normally urged apart by the springs i on the driving pins e. The armature k is supported on one-way clutch n, which is in free screw-thread connection at m with the sleeve f in such a manner that when slip occurs in the friction faces the .sleeve f rotates relatively to the armature k and re-adjusts the clutch, unscrewing of the connection m due to inertia on freeing the clutch being prevented by freeing the clutch n. In a modification the nut of the screw-thread connection is frictionally held against the oneway clutch during conditions of engagement under the action of the electromagnet.
Patent GB-551717-A (GB)
Title: Improvements in or relating to the construction of concrete piles or the like
IPC: E02D5/62
Filed: 1941-08-28
Abstract: 551,717. Piling tubes. HOOD, A. Aug. 28,1941, No. 11014. [Class 68 (ii)] In forming a concrete pile by driving a tube with a removable lower end into the ground by percussion, filling with concrete mix and removing the tube, leaving the foot in situ the tube a is provided with evenly spaced inclined ribs c, d running around the outside, at least one rib running substantially the whole length of the tube. The shoe b, k is left in situ.
Patent GB-1255414-A (GB)
Title: Protection means for semiconductor components
Inventor: BROWN DALE MARIUS
IPC: H01L27/02
Filed: 1969-02-28
Abstract: 1,255,414. Semi-conductor devices. GENERAL ELECTRIC CO. 28 Feb., 1969 [7 March, 1968], No. 11023/69. Heading H1K. A SiO 2  film 13 separating an electrode 20 from a semi-conductor body 11 is protected against breakdown by the provision of a film 29 of Si 3 N 4  in an aperture in the oxide film 13 and an electrode 30 on the nitride film 29 electrically connected to the first electrode 20. The leakage current characteristics -of Si 3 N 4  are such that at relatively low applied voltages device performance is not impaired, but in the presence of high voltage transients breakdown of the oxide film 13 is prevented by increased leakage through the nitride film 29. The device shown is a Si MOST, but the invention is equally applicable to an MNOST. In both cases the gate oxide insulation is protected. A further oxide layer 21 is also provided in the device shown, overlying the gate electrode 20, and breakdown of the film 13 due to overloading of metal interconnections deposited on the layer 21 and connected to the source or drain electrodes 22, 23 may be prevented by the provision of further nitride films, similar to the film 29, underlying portions of the interconnections. The same principle may be used to provide oxide protection in planar diffused transistors or integrated circuits.
Patent GB-1537541-A (GB)
Title: Steering control head with adjustable rotatable positioning means
IPC: B63H25/10
Filed: 1976-03-19
Abstract: 1537541 Steering control head INCOM INTERNATIONAL Inc 19 March 1976 [21 March 1975] 11135/76 Heading B7V A steering head for a marine steering wheel comprises a housing 12, a shaft 14, 18 rotatably supported in the housing, the shaft having means, e.g. gear 20, for attachment to a steering system, e.g. a rudder, the housing having a radially extending shoulder 26 with teeth 30 over at least part of its surface, a collar 32 with a counterbore having teeth 38 to mesh with the teeth 30, and fastening means, e.g. bolts 46, to fasten the head to a support 50. In Fig. 4, not shown, a wedge member (56) is set between the collar 32 and support 50. The collar and wedge members can be made from plastics.