baber/WOPTO huggingface dataset:
Patent GB-327155-A (GB)
Title: Improvements in or relating to rotary pumps, compressors, and motors
IPC: F01C3/02
Filed: 1929-04-05
Abstract: 327,155. Eastes, J. C. April 5, 1929. Movable-abutment type; packing drums, vanes, abutments, and the like; materials, special; driving pumps. - White metal insets 23 are provided for the radial casing slots in which rotate slotted abutment discs 6 moving transversely to the annular working space of a rotary pump or motor. The white metal is run in with the abutment discs 6 in position. The slots 16 in the abutment discs are radial with their faces at an angle to maintain contact with the rotor vanes. 2 which have tapered leading and trailing faces and are of a shape to fit the trapezium section of the working space. The rotor shaft is provided with thrust bearings 20 and drives the abutment shafts, also provided with thrust bearings, through skew and spur gearing 11 - - 15. The casing is formed by two half castings, one 5 carrying bored lugs to receive the countershafts driving the abutments, and the other 4 carrying a bridge piece 18 fitted with bearings for the rotor shaft; they are bolted together through lugs positioned by dowel pins 35. One section of the annular working space may serve for pumping and the other as a motor.
Patent GB-641528-A (GB)
Title: Improvements in and relating to pyrophoric lighters
Inventor: MOORE HAROLD EDGAR
IPC: F23Q2/48
Filed: 1948-06-17
Abstract: 641,528. Pyrophoric lighters. DUNHILL, Ltd., A. June 17, 1948, No. 16352. [Class 75(iii)] To permit easy removal of a worn flint from a hand-operated pyrophoric lighter the block 9 carrying the flint and friction wheel and mounted on the fuel casing 5 is formed with a bore 11 for the flint 12, a bore 13 for the flint-pressing spring 14, a groove 15 extending between bores 11 and 13 to guide a plunger 16 pressing the flint 12 into contact with the friction wheel 7, there being a detachable top cover plate 17 having a slot 18 (through which the flint is inserted and removed) adjacent the bore 11 and a disc 20 being rotatably mounted on a pin 21 and actuating the plunger 16 by an eccentric pin 24 and link 23 to retract the plunger 16 out of contact with the flint 12, a side slot 10a permitting any required lateral movement of such link 23. As shown the link 23 is curved and its inside portion maintains the plunger 16 retracted when the pin 24 has passed a dead-centre position. The plunger 16 may have an arm extending horizontally at right angles to groove 15, this arm being connected to the disc 20 by a curved or notched link.
Patent GB-681045-A (GB)
Title: Retractible form structure for casting concrete walls or the like in situ
IPC: E04G11/08
Filed: 1950-06-30
Abstract: 681,045. Wall shuttering. WINGFOOT CORPORATION. June 30,1950 [March 17, 1950], No. 16376/50. Class 20(ii) Wall shuttering at a re-entrant angle comprises inflatable cylinders 16-19 of rubberized fabric encompassed by an envelope 20 which is secured between metal plate shuttering 10, the arrangement, on deflation of the cylinders, allowing the shuttering to be readily removed by inward retraction after the concrete is set. The metal shuttering 10 comprises panels 11 welded to each other and extending the full height of the wall and which are backed by horizontal angle members 12. The inflatable cylinders are secured in place against vertical deformation by removable angle members 14 bolted to the angle members 12. The envelope 20 is anchored by means of a pair of flexible bead portions 27 engaging vertically extending locking plates 28 secured to the end faces of the adjacent panels 11. The outer shuttering comprises metal plates 4 reinforced by vertical and horizontal angle members and a corner plate 7 secured to the plates 4 by means of angle members 8 which are bolted to the vertical angle members 5 of the plates 4.
Patent GB-550583-A (GB)
Title: Improvements in the control of electric power stations
IPC: H02P9/04
Filed: 1941-12-19
Abstract: 550,583. Electricity supply. YOUNG, J. W., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Dec. 19, 1941, No. 16423. [Class 38 (iv)] [Also in Groups XXXVII and XXXVIII] Systems depending on two or more machines.- A system for the centralized control of the units of plant in a generating station, comprises unit control switches adapted to modify the outputs of individual boilers, steam-plant and generators respectively and group control switches adapted to modify respectively the output of all boilers, all steam-plant and all generators the former switches being arranged to override the action of the related group switches. The switches control reversible electric servomotors, e.g. of the AC capacitor type, whereby switches K7B, K8B adjust resistances determining the speed of auxiliaries of their respective steam generators, KS4S adjusts the speeding gear of a turbine, and KR4S the excitation of an alternator or other generator. Each motor is connected to its control cable by a plug coupling near the motor which, when engaged, illuminates a related legend on the unit control panel. Operation of any unit switch changes the colour of the related legend in accordance with the sense in which the control is operating. The circuits controlled by the group switches pass through contacts on the related unit switches which are open when the unit switch is in an operative position so that the group control is then ineffective on the servomotor controlled by that unit switch. The unit panels such as UP784 may also comprise instruments such as a steam flow meter for each boiler, a power factor meter and a megawatt meter and a number of unit panels may be formed into one structure with a group control panel MP which may comprise in addition to the group control switches EK, FK, SK for excitation, steam supply and speed control respectively, meters such as a kilovoltmeter, frequency meter, steam pressure indicator and steam pressure recorder. Alarm and signalling circuits between the group panel and the boiler and engine houses respectively may comprise two-way switches BHK, THK and illuminated legends on the panel, with visual and audible alarm signals and answering switches whereby the audible alarm may be cut out and the colour of the appropriate legend on the panels may be changed. The control circuits of the servomotors may pass through change-over switches or the equivalent at the plug couplings whereby the motors may be operated from a duplicate set of control switches on an emergency set of panels.
Patent GB-915191-A (GB)
Title: Process for extraction of boric acid from colemanite or other minerals containing calcium borate
IPC: C01B35/10
Filed: 1960-05-11
Abstract: Ores containing calcium borate, e.g. colemanite, are reacted with an aqueous solution containing ammonium carbonate or bicarbonate and ammonia to obtain a solution of ammonium borate which is filtered to remove solids including calcium carbonate, and the filtrate is boiled to concentrate it and to decompose the ammonium borate to boric acid and ammonia.  The reaction is carried out at a temperature up to 90 DEG C. and at atmospheric pressure or above.  The ore is first crushed and preferably is first calcined and then crushed.  If it is not calcined it may be first reacted with solution from a previous reaction, the solution filtered and the solid material reacted again with fresh solution. Examples are given.
Patent GB-958203-A (GB)
Title: Improved floor construction
Inventor: AUBREY WILLIAM HARRY
IPC: E04C5/065
Filed: 1960-05-11
Abstract: 958,203. Reinforced concrete floors; prestressed girders. PHILLIPS CONSULTANTS Ltd. May 11, 1961 [May 11, 1960], No. 16632/60. Heading E1V. A long span floor girder comprises a horizontal prestressed concrete plank 11 in which is embedded the lower parts of elements of a metal lattice web 12, the upper parts of the elements of the lattice being connected by longitudinal angle members 15 that provide horizontal flanges to support precast concrete floor members 26. In the exemplified embodiment the web 12 is formed by a bar bent into zig-zag form, Fig. 1 (not shown) the lower bends being connected by longitudinal members 19 that are also embedded in the concrete plank 11. The plank is prestressed by means of longitudinal high tensile wires 20. Initially upright rods 22 upstanding from the angle members 15 are arranged to project up through a floor reinforcement mesh 28 and are then bent down to be under a concrete topping 27 which is subsequently cast over the mesh 28 and tiles 26. A ceiling 24 is formed upon reinforcement 23 carried by wire hangers 25 passing over the planks 11.
Patent GB-379768-A (GB)
Title: Improvements in or relating to welt treating devices
IPC: D05B67/00
Filed: 1931-06-08
Abstract: 379,768. Sewing-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., Union Works, Belgrave Road, Leicester.- (Assignees of Ashworth, F. ; Wenham, Massachusetts, U.S.A.) June 8, 1931, No. 16635. Convention date, June 12, 1930. Addition to 297,428, [Class 17 (i), Boots and shoes, Apparatus for making &c.]. '[Classes 17 (i) and 112.] A welt sewing-machine having associated therewith a device for treating the outer grooved and bevelled margin of the welt, on its passage to the stitch-forming mechanism, with a tempering liquid, such as water, is so arranged that, upon starting and stopping the machine, the welt-guiding member is moved to and from a position where the guide presents the welt to the treating fluid. A plurality of independent interchangeable guiding members, each adapted to take a particular size of welting, is provided, and so arranged that each may be readily mounted in a definite position, relatively to the level of the treating liquid determined by the contact of co-operating surfaces on the guide and carrier. As shown, a receptacle 8, Figs. 1 and 2, for the tempering liquid is clamped by a bolt 24 on a pillar 12 which is supported in an angularly adjustable position above the machine work table 9. An auxiliary support 30, Fig. 2, for the receptacle is also provided. The liquid level in the receptacle 8 is maintained at a constant level by liquid in a container 32, which is adjustably supported above the receptacle 8. The liquid is heated by a radiator 50, Fig. 2, secured against the base of the receptacle 8 by screws 51. Any one of a number of work guides which, when out of use, are supported on a rack 62, may be interchangeably mounted upon the welt guide carrier 58. In operative position, the threaded welt passes over a supporting roller 68 to a slot 86, Fig. 6, in the carrier, angularly and adjustably inclined to the surface of the liquid to immerse a portion only of the welt. A notched disc 113, Fig. 7, on the cam shaft 115 engages a shoulder 118 between bearing surfaces 109, 111 on an arm 107 of a bell-crank lever 106 secured to a hollow shaft 104 in which is journalled a shaft 102 carrying a lever 100 which is engaged by a pin 110 on the lever 106. The welt guide 58 is moved by a lever 112, connected to the shaft 102, and link 114, and when the machine stops the directions of the cam shaft is reversed to swing the arm 107 upwardly, assisted by a spring 119 coiled on its axis, to engage the face 111 with the disc 113. When the cam shaft is stationary, the arm 107 remains in its upper position and the welt guide is held with the welt out of contact with the liquid. The period of treatment of the welt may be varied by adjusting the angle at which the welt enters the liquid by an adjustable welt guide roller 136, Fig. 2, between the treating point and the work. A tension roller 152 rotatably mounted in a frame 154 pivoted on a stud 155 and pressed by a spring 162 prevents return of the welt into the liquid after being slacked by pull-off or other feeding device.
Patent GB-1342196-A (GB)
Title: Armoured vehicles
IPC: F41H7/04
Filed: 1972-04-11
Abstract: 1342196 Making armoured vehicle bodies; welding by pressure RHEINSTAHL AG 11 April 1972 [21 April 1971] 16663/72 Headings B3A and B3R [Also in Division F3] In an armoured vehicle body 1, Fig. 1, comprising a number of parts which are assembled to form a compound unit and which differ with regard to their properties or to their resistance to extraneous influences, the front parts, 8, 8<SP>1</SP> of the vehicle body 1 consist of armour steel and the remaining parts 9, 9<SP>1</SP> of the body consist of light metal alloy. The front parts 8, 8<SP>1</SP> are jointed to the adjacent parts of the body by a multiple stage processing method to form the unit and are hardened. The multiple stage processing method comprises positioning a steel plate 101 and a light metal alloy, e.g. aluminium alloy plate 102 as shown in Fig. 3, igniting a layer 110 of explosive which is provided on the plate 102 so as to connect the plates 101 and 102 together, machining away portions 101<SP>1</SP> and 102<SP>1</SP>, Fig. 2, and by welding at 106 and 105.
Patent GB-440708-A (GB)
Title: Improvements relating to the manufacture of alternating electric current rectifiers
IPC: H01L21/16
Filed: 1935-06-07
Abstract: 440,708. Static contact rectifiers. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., 82, York Road, King's Cross, London.- (Assignees of Dowling, P. H.; 628, Cascade Road, Forest Hills, Pennsylvania, U.S.A.) June 7, 1935, No. 16669. Convention date, Oct. 19, 1934. [Class 37] [See also Group II] A copper oxide rectifier is manufactured by oxidizing a copper blank, e.g. by heating in an oxidizing atmosphere, and then treating the oxidized blank with a reagent containing sulphuric acid to remove the film of cupric oxide. The reagent may also include hydrochloric acid or any other soluble compound of chlorine which results in an improved cuprous oxide layer. The reagent may be a solution consisting of 2 per cent by volume of sulphuric acid and 1 per cent by volume of hydrochloric acid and may be used at a temperature of, for example, 80-100‹ C. The blank is then washed and dried and may then be immersed for two or three seconds in concentrated nitric acid to remove fine particles of copper and loose crystals of cuprous oxide. To produce a mat surface on the cuprous oxide layer the blanks may be treated with an aqueous solution of acetic acid, e.g. with a solution consisting of 25 per cent acetic acid by volume at a temperature of 80-100‹ C. They are then washed and dried, and finely divided carbon may be applied to the oxide layers to improve the electrical contact. Contact members, for example, those described in Specification 194,653, [Class 38 (ii)], are then applied. As shown in Fig. 2, the blanks A may be arranged in pairs on a member B, the oxidation producing thick oxide films on one surface and thin films on the contacting surfaces A<1>. The subsequent treatment results in complete removal of the cupric oxide film from each blank and the removal of the cuprous oxide film from the surfaces A<1>, the final result being as shown in Fig. 4, D being the cuprous oxide layer.
Patent GB-699877-A (GB)
Title: Improvements in and relating to house heating apparatus
IPC: F24D5/04
Filed: 1951-07-13
Abstract: 699,877. Ventilating buildings. PATMORE, H. T. July 13, 1951, No. 16680/51. Class 137 [Also in Group XIII] In an arragement for heating a house 10, e.g. divided into rooms by partitions 12, cold air passes from the rooms through outlets 29 in or near the floor 19 (and air may enter through an inlet 50 from outside the house 10) into a circulating duct 18 winding back and forth beneath the floor to a vertical chamber 30 containing a heater such as a hot water coil 60, Fig. 2. Furthermore, a hot air distribution duct 33, adjacent the ceiling 34, receives the air from the top of the chamber 30 and has an outlet 36 to each room. The openings 29, 36 may be controllable. The inlet 50 from the outside atmosphere is controlled by a gate 51; an outlet 56, to a chimney 55, is controlled by a gate 57. A motor-driven fan 40 draws air from the duct 18 through openings 31 into the heating chamber 30 which is shown incorporated in a partition 12. The outlet at the upper end of the chamber 30 is controlled by a damper 45 and when the chamber is central of the house, as in Fig. 1, there are two ducts 18 each leading from an external inlet 50. By opening an inlet 50 and a controlled outlet 46 at the top of the chamber 30 or in the duct 33, some of the air circulating to the rooms may be continually replaced. For quick heating, the outlet 56 is opened to the chimney so as to suck cold air out of the duct 18 and rooms.. The water coil 60 constitutes a by-pass extending from a pipe 63 supplying hot water to a tank 62 from a water heater in a cooking stove 61. A valve 4 is automatically controlled according to the temperature of the chamber 30 to direct hot water through the coil 60 to the tank or directly to the tank. Although shown in a kitchen 13, the tank may be in the chamber 30. In a modification, Figs. 4, 8 (not shown), the heating chamber is larger and contains an oil heater surrounded by an air jacket communicating with the duct 18. Joists 20, insulated from a concrete base 24, form the duct 18, communicating apertures being formed at alternate ends, by bevels, Fig. 6 (not shown), extending inwardly from the top to the bottom of the end of the joist or by termination short of the wall, Fig. 9. In the latter case, baffles 80, 83 for the air extending from the concrete 24 to the floor 19, support the floor in the aperture spaces 82.
Patent GB-784802-A (GB)
Title: Improvements in soldering composition for aluminium
IPC: B23K35/36
Filed: 1955-06-10
Abstract: A soldering composition for aluminium having both a melting point and an ability to remove surface oxide on Al below 250 DEG C. consists of the product of fusing to homogenety a mixture of Alcl3, an alkali metal chloride (NaCl, KCl, or LiCl), and a chloride of a heavy metal electronegative with respect to Al, the molar proportion of AlCl3 in the AlCl3-alkali metal chloride component of the mixture ranging between 52 per cent and 82 per cent and the heavy metal chloride being less than 50 per cent by weight of the mixture and preferably between 1 per cent and 25 per cent thereof.  Suitable heavy metal chlorides are zinc, stannous, manganous, chromic, gallium trichloride, ferrous carmium, indium, tellurium monochloride, cobalt, nickelous, lead, copper, mercurous, silver, rhodium, gold, palladium dichloride. The composition is applied preferably in powdered form and requires no metal or alloy solder since it removes the Al surface oxide and simultaneously coats the clean Al surface with the electronegative metal of the heavy metal chloride component.  Al base alloys containing 90 per cent or more Al may be soldered; whilst such alloys or Al may also be soldered to copper, copper base alloys particularly brasses and Be copper, silicon bronzes and manganese bronzes.  In this latter case the metal of the heavy metal chloride component should be electronegative with respect also to the copper, bronze, &c.
Patent GB-1488239-A (GB)
Title: Semiconductor integrated circuits
IPC: H01L27/06
Filed: 1976-04-26
Abstract: 1488239 Integrated circuits INTERNATIONAL BUSINESS MACHINES CORP 26 April 1976 [15 June 1975] 16803/76 Heading H1K An I.C. comprises a first semi-conductor layer 5 on a substrate 4, a subcollector region 6 extending from the substrate 4 into the layer 5 but not to the surface thereof and second 12, 13 and third 11 regions extending from the substrate 4 to the surface of the layer 5, the second region 12, 13 surrounding the subcollector region 6 and having a higher conducitivity than the region 11, a dielectric layer 18, 15 on the layer 5 and having openings over the subcollector region 6, the third region 11, and another region, a second semi-conductor layer over the dielectric layer 18, 15 where it is poly crystalline and in the openings where it is monocrystalline, dielectric isolation regions 50 dividing the second semi-conductor layer into portions each including a monocrystaline region 23, 25, 27, 29, a base 29 and an emitter 51 formed in a monocrystalline region 29 over the subcollector region, a N-channel FET formed in the monocrystalline region 25 over the third region 11, and a P-channel FET formed in another monocrystalline region 23. The I.C. may also include a resistor 24 formed in the second semi-conductor layer, either isolated by the dielectric isolation 50, or adjacent the base region 29 or a subcollector-contacting region 27, and it may be formed by ion implantation. A Schottky barrier diode may also be formed in the I.C. during the process steps required to make the transistors. The semi-conductor substrate is Si, the dopants P, As, Sb and B, As being used to form the subcollector region 6 owing to its low diffusivity, the insulating layer includes silicon oxide 18 and silicon nitride 15, and the isolation regions 50 are silicon oxide. The Schottky contact material is platinum silicide with Al metallization. The various stages in the manufacture of the I.C. are described in detail.
Patent GB-1366468-A (GB)
Title: Piston engines with hydrostatic transmissions
IPC: F02B75/02
Filed: 1972-04-12
Abstract: 1366468 Hydraulic driving gear; two stroke engines; telemotor systems SULZER BROS Ltd 12 April 1972 [26 April 1971] 16896/72 Headings F1B and F1P In an I.C. engine in which a pair of working pistons 5, 5' are rigidly connected by piston rods through sealing bores to hydraulic pistons 7 movable in a pair of hydraulic cylinders which are connected by a pair of drive ducts 10 to the chambers of a hydraulic motor which expand and contract in anti-phase, the hydraulic cylinders are double acting and their cylinder chambers remote from the hydraulic motor are joined by a connecting duct 23. The hydraulic system has a feed means 9 to maintain a positive pressure which delivers through non-return valves 20 into the drive ducts 10 and through a manual or automatically controlled stop valve 22 into the connecting duct 23 and also to ports 26 in the sealing bores. Each piston rod has a control groove 28 which connects port 26 to port 25 in some working positions, the port 25 being connected to the chamber of the hydraulic cylinder nearer the working piston. Ports 27 and ducts 30 discharge any fluid leakage and the leakage flow past pistons 7 is arranged to be less than the leakage flow along the piston rods 6 so that the fluid volume in the upper cylinder chamber and connecting duct 23 always tends to fall and pistons 5 tend to move upwardly because of the feed make-up fluid supplied to the drive ducts 10.
Patent GB-478487-A (GB)
Title: Improvements in or relating to the reactivation of catalysts used in hydrogenation and like processes
IPC: B01J23/94
Filed: 1936-10-08
Abstract: Catalysts comprising a suspension in oil of finely-divided nickel, such as those prepared according to Specification 478,386 are reactivated by treatment with dry or super-heated steam followed by reduction with hydrogen or other reducing gas.  The temperature of reactivation may be that at which the catalyst was originally produced, e.g. 230 DEG  C.  Specification 370,252, [Group IV], also is referred to.
Patent GB-169367-A (GB)
Abstract: 169,367. Pennant Manufacturing Co., Ltd., and Penzer, E. H. Aug. 14, 1920. Rotary punching- machines. - In screwactuated belt punches provided with an adjustable gauge or stoppiece, such stop-piece is in the form of a plate 8 having an upturned end 9 and side recesses 10 for securing-screws 11.