baber/WOPTO huggingface dataset:
Patent GB-1388705-A (GB)
Title: Union testing equipment
IPC: G01H9/00
Filed: 1972-09-18
Abstract: 1388705 Union testing equipment PLESSEY CO Ltd 29 June 1973 [18 Sept 1972] 43221/72 Heading G1A In an apparatus for determining whether or not a contact stud 4 is securely fixed to a leaf spring 5, light from a laser is directed on to the stud and the reflected light is received by a photo-electric detector 7 so that on vibrating the leaf spring (by applying compressed air or electromagnetic means) any looseness or relative movement of the stud will be detectable by a pair of headphones 10 (or an oscilloscope) because an erratic signal will be produced instead of a steady continuous periodic signal.
Patent GB-1040567-A (GB)
Title: Improved means for effecting attachment to molybdenum contacts particularly in semi-conductor devices
Inventor: GARRETT JOHN MANSELL
IPC: H01B1/04
Filed: 1962-11-15
Abstract: 1,040,567. Semi-conductor devices. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Nov. 13, 1963 [Nov. 15, 1962], No. 43242/62. Heading H1K. A molybdenum contact member and the goldsilicon alloy electrode of a semi-conductor device are joined by placing a gold-silicon foil between them and heating in a non-oxidizing atmosphere. In the embodiment the electrode is a gold-silicon-antimony mass alloyed to a silicon body to form therewith a PN junction of a transistor. It is assembled with the molybdenum contact, preferably gold-plated, and a gold-silicon-antimony foil (0À2-1% by weight antimony) which may also contain 0À05% by weight phosphorus to give improved mechanical properties. The assembly is then heated under pressure at 390‹ C. in hydrogen.
Patent GB-874145-A (GB)
Title: Improvements in piston-and-ring assemblies for the cylinders of internal combustion engines and the like
Inventor: CROSS ROLAND CLAUDE
IPC: F16J9/00
Filed: 1959-12-21
Abstract: 874,145. Pistons. CROSS MANUFACTURING CO. (1938) Ltd. Feb. 18, 1960 [Dec. 21, 1959], No. 43302/59. Class 122 (1). An aluminium alloy piston is fitted with two ring assemblies 2 disposed one on each side of the gudgeon-pin axis and each comprising a bearing ring 3 between two abutting packing rings 8. The bearing ring and packing rings are housed in piston grooves 5 and 9 respectively and the bearing ring is relatively thin radially and its axial length may be at least ten times its thickness which is greater than the depth of the groove 5. All the rings are split and may be of tool steel. In a modification, Fig. 4 (not shown), a ring assembly comprises three packing rings and two bearing rings. Specification 415,322 is referred to.
Patent GB-1364538-A (GB)
Title: Method of applying a refractory lining on hot metallurgical ladles soaking pits and furnaces
IPC: B22C15/20
Filed: 1971-09-16
Abstract: 1364538 Lining metallurgical vessels AIR REPAIR Inc 16 Sept 1971 [1 Oct 1970] 43303/71 Heading B2E [Also in Divisions C1 and F4]  A metallurgical vessel, e.g. a ladle, soaking bits, furnaces and cupolas is provided with a renewal lining by applying on the inner surface at a temperature of 400-3,000F. a refractory composition comprising by weight 40-70% clay, 28-58% quartzite and 1/4-4% of an organic binder having a melting point of 250-400F, selected from pitch, tar, rosin, polyvinyl chloride and polytetrachloroethylene. The heat causes the binders to carbonise and leaves a mosaic structure of crystalline carbon intermixed with the other constituents of the lining. Preferred clay materials are alumina and silica. The refractory composition may be applied by centrifugal means moved coaxially of the containment. As shown in Fig. 1, a ladle 10 to be re-lined has a remaining refractory lining 16. Centrifugal impeller 20 is lowered into the ladle and the impeller rotated to apply a mixture of refractory composition on the inner surface of the ladle to produce a new lining 32. The lining 32 may be applied by moving the impeller vertically in either direction. The thickness of the lining 32 may vary from 1/4 inches up to 10 inches.
Patent GB-1425553-A (GB)
Title: Cleaning apparatus for flat surfaces
IPC: B24B27/00
Filed: 1974-10-08
Abstract: 1425553 Grinding INDUSTRIEANLAGEN AUERBACH-FORD GmbH 8 Oct 1974 [11 Oct 1973] 43459/74 Heading B3D Apparatus for cleaning flat surfaces, such as the flat horizontal transporting surfaces 1 of hardening trolleys 2 and the like used in the course of production of lime-sand bricks, comprises a plurality of grinding machines 7 suspended so as to be adjustable for height and movable across the surfaces to be cleaned, each machine having a drive motor 8 and a grinding disc 9 rotating on a vertical axis, the machines being arranged next to each other in a row mounted on a grinding machine-carrier 11 and adjustable for height by means of a system of jointed control levers, the carrier being movable transversely to the row, and an operating device 12 for common adjustment in height of the row attached to the system of jointed control levers. The trolleys 2 travel by wheels 5 along rails 6 and may have a continuous surface 1 or a sectional surface formed by the flat bridges 4 of inverted U-shaped sections 3. The grinding machines 7 each have a drive motor 8 and grinding wheel 9 and are carried by vertical struts 15 and parallel links 14 from a cross member 29 of the carrier 11 which has rollers 27 engaging rails 31, a rack 33 on one of the rails being engaged by a pinion 32 of a motor 30 to effect travel of the carrier along the rails. The upper ends of the struts 15 are connected by levers 22 to a shaft 18 which is rotatably supported by struts 19 from the carrier and secured to a lever 20 connected by a cable 25 to the sheave 24 of a height-adjusting drive motor 17. In operation, the height of the individual grinding machines is adjusted by respective springs 23, the machines are raised by the height-adjustment drive 17, and the carrier 11 is moved to one end of a carrier frame. A trolley is positioned by stops 38 engaging axles 37 of the trolley and the machines lowered so that the wheels 9 grind and clean the surface as the carrier is driven to-and-fro. A hood 35 having an exhaust device removes dust produced. A control device for the height-adjustment drive, travel of the carrier, and the stops enables the apparatus to be automatically controlled. The stop device may be movable to effect change of position of the trolley.
Patent GB-1415414-A (GB)
Title: Expandible pressure mounted semiconductor assembly
IPC: H01L23/40
Filed: 1973-09-18
Abstract: 1415414 Semi-conductor devices BORG-WARNER CORP 18 Sept 1973 [26 Oct 1972] 43831/73 Heading H1K A semi-conductor device assembly comprises a plurality of devices 20 stacked under pressure between thermally and electrically conductive elements 21, contact to the devices being by bus-bars 30 selectively connected to the elements and by wires 36. The pressure is provided by the bars 25 passing through the elements and secured at their ends to plates 26, pressure being transmitted from the plates through Belleville washers 40 and a liquid-containing bellows 46 to the stack. The devices may be diodes, transistors or SCRs. The stack may be sealed in a housing containing a cooling liquid, connection to the bus-bars including a flexible wire 33 to prevent straining of the stack.
Patent GB-1022737-A (GB)
Title: Improvements in or relating to methods of preparing alkyl or substituted alkyl chlorides
IPC: C07C17/16
Filed: 1964-10-28
Abstract: Alkyl or aralkyl chlorides are prepared by reacting phosphorus trichloride with an alkanol or aryl-substituted alkanol at a low temperature to give the corresponding monoalkoxy phosphorus dichloride and anhydrous hydrogen chloride, said reaction being continued until the entire amount of alcohol is consumed, and thereafter subjecting the said monoalkoxy phosphorus dichloride to chlorination with chlorine gas at a low temperature to give the required alkyl chloride, and phosphorus oxychloride as by-product. Preferably, the hydrogen chloride formed in the first step is continuously withdrawn.  Several suitable alcohol starting materials are listed.  Examples describe the preparation of n-octyl chloride, n-dodecyl chloride and n-butyl chloride.ALSO:Phosphorus oxychloride is formed as a by-product in the reaction of chlorine gas with a monoalkoxy phosphorus dichloride or a mono-aralkyloxy phosphorus dichloride at a low temperature to give the corresponding alkyl chloride (see Division C2).  In examples, the phosphorus oxychloride and the alkyl chloride are separated by distillation.
Patent GB-1183219-A (GB)
Title: Pharmaceutical Compositions of Tetrahydrocarbolines and Salts Thereof
Inventor: ATKINSON JOHN DAVID
IPC: A61K9/00
Filed: 1967-09-27
Abstract: 1,183,219. Analgesic compositions. IMPERIAL CHEMICAL INDUSTRIES Ltd. 29 Aug., 1968 [27 Sept., 1967], No. 43926/67. Addition to 1055203. Heading A5B. [Also in Division C2] Pharmaceutical compositions suitable for parenteral administration comprise sterile injectable aqueous or oily solutions or suspensions containing at least one #-carboline derivative of formula wherein R is H or C 1-6  alkyl, or a salt thereof. Specified salts are hydrochloride, hydrobromide, sulphate, phosphate, oxalate, tartrate, citrate, lactate, acetate, salicylate and benzoate. The compositions are said to be useful in the relief of pain in man.
Patent GB-1122723-A (GB)
Title: Improvements in and relating to oscillatory piston fluid-driven motors
IPC: F15B15/12
Filed: 1966-10-05
Abstract: 1,122,723. Oscillatory-piston fluid-driven motors. F. SNEEN. Oct. 5, 1966 [Dec. 13, 1965; Sept.2, 1966], No.44400/66. Heading F1F. An oscillatory-piston fluid-driven motor, or actuator, has a part-annular chamber 2 within a casing 1 containing a part-annular piston 11 with sealing rings or sleeves 13 lodged between flanges 12 at either end 17 thereof, bearing- surfaces for the piston being provided by pads or plates 18 that are situated in the radially outermost side of the piston in sliding contact with the adjacent wall of said chamber and are made of an anti-friction material e.g. P.T.F.E., nylon or bronze, whereby the piston can be dimensioned to render it capable of oscillating freely within the said chamber while driving a power-output shaft or axle 4 to which it is connected by a radial arm 14. Inlet and outlet ports 19 for the working fluid are situated at the ends of said chamber or either side of a fixed partition 8. The shaft 4 is vertically orientated and supported by a roller bearing 7. In a second embodiment of the motor, Figs.3  and 4 (not shown), the bearing 7 is dispensed with and the piston is supported within the chamber 2 by three additional pads (20) that are situated in its lowermost side adjacent the ends 17 and the centre of the piston, respectively. In a third embodiment, Figs. 5 and 6 (not shown), the motor is generally similar to that shown in Figs. 1 and 2 save that the arm 14 is not integral with the piston but engages with a recess (21) in the radially-innermost side of the latter, further pads (22, 23) being situated at the centre of the radially-outermost surface of the piston in alignment with said recess and in the radiallyinnermost side of the piston in alignment with the pads 18, respectively. In this embodiment, the bearing 7 is retained and the pads (20) are omitted; but, the mode of construction according to the second embodiment may be employed in this embodiment.
Patent GB-949039-A (GB)
Title: Improvements in or relating to welded connections
Inventor: FERRAR MICHAEL HUGH
IPC: F16L13/007
Filed: 1959-12-31
Abstract: 949,039. Welding by fusion. GENERAL ELECTRIC CO. Ltd. Dec. 15, 1960 [Dec. 31, 1959], No. 44404/59. Heading B3R. In a welded connection between two coaxial metal cylinders disposed one within the other and having different compositions such that if welded directly to one another the weld would deteriorate through migration of a component of one of the metals, each cylinder is welded directly to a surface, to which the cylinder can be welded without such deterioration, of a preformed hollow cylindrical transition member disposed between the cylinders having a pair of surfaces to which the metals can be welded without such deterioration. A butterfly valve in the gas duct of a gas-cooled nuclear reactor comprises a cylindrical mild steel body 1 and a flexible stainless steel sealing member 2 urged by gas pressure applied via a part 3 into sealing contact with the edge of the valve closure member (not shown). The edges of the stainless steel member 2 are welded at 7 and 8 to a stainless steel layer 6 bonded to a mild steel layer 5 in a preformed cylinder 4 and the mild steel layer 5 is welded at 9 and 10 to the mild steel body 1. Grooves 11, 12 are provided in the fillet to allow differential expansion.
Patent GB-1086490-A (GB)
Title: Improvements in or relating to transistor receiving circuits
IPC: H03D7/12
Filed: 1965-10-21
Abstract: 1,086,490. Gain control. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Oct. 21, 1965 [Oct. 24, 1964], No. 44621/65. Heading H3T. A receiving circuit comprises a first stage (mixing transistor 3), followed by two cascaded I.F. transistors 13, 20; followed by a detector stage (diode 22) from which is derived a gain control voltage which is applied to the second I.F. transistor 20 and also acts on the first I.F. transistor 13 through a coupling between the emitters of I.F. transistors 13, 20; the polarity of the detector stage being so chosen that the direct emitter-collector current of the second transistor increases as the input signal strength increases, and when a predetermined input signal is exceeded, a diode 28 included in the coupling circuit between the I.F. transistor emitters is cut off and the voltage across an emitter resistor 27 of second I.F. transistor 20 is applied to the first stage to reduce its gain. Good signal to noise ratio of output signals at 37 is ensured by increasing the gain of later stages of the circuit at the expense of that of earlier stages as the signal strength increases. With low input signals from aerial 1, no control operates, transistors 3, 13, 20 are in high gain states, and diode 28 conducts. As the signal strength increases, the direct emitter current of transistor 20 increases, but since transistors 13, 20 have a common emitter resistance (composed of resistors 17, 27 in parallel, diode 28 conducting) with a constant voltage across it (since transistor 13 has a constant base potential derived from resistors 14, 15), an increase in current through transistor 20 is accompanied by a corresponding drop in current through transistor 13. The resulting increase in gain of transistor 20 is balanced by the decrease in gain of transistor 13, and the total I.F. gain remains constant, with optimum signal to noise ratio. Upon further increase of the input signal, the increase in gain of transistor 20 no longer compensates for the loss in gain of transistor 13. Eventually, diode 28 is cut-off, and thereafter the voltage across resistor 27, increasing with increasing signal, is applied to the base of transistor 3 through resistor 30, causing a reduction in gain of transistor 3, and also through I.F. choke 36 to the base of transistor 20, causing further gain control. When diode 28 is conducting and the voltage across resistor 27 is constant, Zener diode 10 is cut-off and the emitter current of transistor 3 is stabilized by large resistor 9, but when diode 28 cuts off and the voltage across resistor 27 increases, Zener diode 10 breaks down and prevents resistor 9 causing strong direct voltage negative feedback to transistor 3. A low-gain control also operates due to the varying input impedance of transistor 20, resulting in a varying match between the I.F. stages. The increasing direct current through transistor 20 permits transistor 20 to handle the increasing signals without distortion, and also to supply the output power necessary for the increasing signals.
Patent GB-1438692-A (GB)
Title: Apparatus for producing directionally solidified castings
IPC: B29C33/08
Filed: 1973-09-24
Abstract: 1438692 Apparatus for producing directionally solidified castings HOWMET CORP 24 Sept 1973 [21 Feb 1973] 44692/73 Heading B3F An apparatus for producing directionally solidified castings comprises a mould 32 having a flat upper surface 52, a crucible 56 provided with an opening 60 in its bottom wall and supported on the surface 52, and means 68 for tipping the crucible to allow the molten metal contained therein to flow through the opening 60 and into the mould, and is as described in Specification 1,438,693.
Patent GB-1485136-A (GB)
Title: Ac drive discharge display apparatus
IPC: G09G3/28
Filed: 1974-10-16
Abstract: 1485136 Control of displays MITSUBISHI DENKI KK 16 Oct 1974 [16 Oct 1973] 44898/74 Heading G4H The invention relates to the selection of row and column conductors in an A.C. drive discharge display by means of a matrix of transistors Tij whose bases and emitters are connected to respective column lines of the matrix and whose collectors Eij are connected to the rows or columns of the display, selection signals being applied to the rows of the matrix (which are connected to the collectors via resistors R), and to the columns via respective switches Sa;, Sb j . The display (Fig. 1, not shown) is controlled by a sustaining drive voltage 6, turn on pulses 7 and turn off pulses 9, giving rise to luminescent pulses 8 at the intersections of selected conductors. The voltages of Figs 2b, 2c are applied to X, Y conductors respectively; Fig. 4 shows an X-conductor selection circuit having sustaining and turn on/off inputs Vs, Vp and selection switches Sa i , Sb j , and outputs Eij connected to the X conductors. The circuit consists of a matrix of transistors Tij and resistors R1; normally the Sa i , Sb j  are off and on respectively so that the Tij are on and Vs passes to the Eij. To select a particular conductor, e.g. that connected to output E22, Sa 2  is turned on and Sb 2  is turned off. Transistors Ti2 are then off (no bias voltage Vb) so that when Vp is applied via Sa 2  there is no voltage drop across the R1 of transistor T22, giving an output pulse only at E22. Fig. 6 (not shown) shows a similar circuit for selecting a Y conductor. In the circuit of Fig. 5 (not shown), each Sb j  is connected so as to shortcircuit its respective column of transistors. The transistorized circuits are stated to be an improvement over known circuits (Fig. 3, not shown) using only resistors and diodes. Reference is made to Specification 1,485,135 which discloses similar subject-matter.
Patent GB-1247596-A (GB)
Title: Improvements in or relating to apparatus for balancing motor vehicle and/or other wheels
IPC: G01M1/22
Filed: 1969-09-16
Abstract: 1,247,596. Measuring rotary unbalance of wheels. REPCO RESEARCH PTY Ltd. Sept. 16, 1969 [Sept. 17, 1968], No. 45523/69. Heading G1N. Apparatus for measuring the rotary unbalance of a wheel whose compensating planes are the inner and outer rim portions comprises means for supporting the wheel on a shaft with the inner rim portion coinciding with a bearing plane, the unbalance components at the bearings being measured electrically and fed to a potentiometric network adjusted in accordance with the distances between the compensating and bearing planes, whereby the unbalance components in the compensating planes are determined. The network also includes a variable resistor to be adjusted in accordance with the diameter of the wheel. The unbalance compensating components are fed individually to a stroboscopic flash-lamp which is triggered by the unbalance signal so that a calibrated disc rotating with the wheel indicates the angular position of the unbalance component.
Patent GB-1183686-A (GB)
Title: Battery Plate Structure.
IPC: H01M4/72
Filed: 1968-09-26
Abstract: 1,183,686. Battery plate. GENERAL MOTORS CORP. 26 Sept., 1968 [20 Nov., 1967], No. 45787/68. Heading H1B. A battery plate structure (Fig. 3) comprises a grid of non-conductive material having a border 12 within which a plurality of grid wires 16 extend to provide a plurality of openings 18 and has a slot 20 therein defined by border boundaries 22 and body boundaries 24 for receiving a conductive terminal member 26 of deformable material, which member has a base portion 28 which underlies grid 10 and an interlocking portion 30, both of which portions are deformed, e.g. by rolling, pressing or stacking to cause the terminal material to interlock with, by flowing about, the boundaries 24 of slot 20. In Fig. 2 the product of deformation is indicated at 36 while the original terminal form 26 is shown in phantom lines. The interlocking portion may be bifurcated with two outwardly flared branches 34. The base may be a mirror image of an interlocking portion which is forklike, or the terminal may be an upstanding member which has been sectioned into a plurality of spaced leaves, or the interlocking member may comprise an upstanding rib or terrace on a base. The grid is preferably made of a high-strength, non-porous acidresistant moulded plastics material, e.g. polyethylene, polyvinyl chloride, polystyrene or polypropylene.
Patent GB-991754-A (GB)
Title: Improvements in or relating to building elements
IPC: E04B1/00
Filed: 1961-05-12
Abstract: 991,754. Building slabs; roofs; floors. C. VAN DER LELY N.V. May 12, 1961 [May 30, 1960], No. 45852/64. Divided out of 991,752. Drawings to Specification. Headings E1B and E1V. The subject matter of this Specification is to be found in Specification 991,752 but the claims relate to the sawtoothed interlocking edges of the building elements, and to the plastic sealing material therebetween. Specifications 991,751 and 991,753 also are referred to.
Patent GB-1070829-A (GB)
Title: Dispensers
IPC: B65D6/06
Filed: 1965-10-29
Abstract: 1,070,829. Dispensers. R. M. KOTZEK. Oct. 29, 1965 [Feb. 1, 1965], No. 45906/65. Heading B8P. A pill &c. dispenser comprises a compartmented tray (1), Fig. 1 (not shown), with keyways (8) in the side walls, with one closed end (10) and spaced lugs 11, 12, and a sliding cover (14), Fig. 3 (not shown), with side wings on the interior of each of which is a key (17) with lugs (18, 19). When assembled, the lugs (18, 19) co-operate with the lugs (11, 12) to inhibit sliding of the cover but are sufficiently resilient to permit a required opening to obtain access to the compartments. The tray and cover members are of moulded plastics, a portion at least of the cover being transparent. The compartments are numbered and one end (13) of the drawer is recessed to accommodate identification data.