baber/WOPTO huggingface dataset:
Patent GB-200299-A (GB)
Title: Improvements in or relating to casement stays or fasteners
IPC: E05C17/18
Filed: 1922-05-22
Abstract: 200,299. Barton, P. C. May 22, 1922. Addition to 173,676. Stays.-The complementary upper and lower bar members of the casement stay described in the parent Specification are formed, according to the present invention, from sheet or other wrought metal by pressing operations. The lower and slotted bar g is formed from a. blank shaped so that the end to be attached to tha window bracket member may be bent to form part of a double hinge member. The emd g<2> is bent so as to be somewhat above the plane of the bar g, when it is riveted in position between lugs of the attachment bracket on the window, the part g<3> being cut away and bent as shown to form a hinge bearing surface for the knuckles of the upper bar i. This bar has its pivoted end formed with slits and the end centre piece is then removed and the metal bent into the shape shown at i<2>, i<6>. The parts i<2> form lugs which embrace the sides of the part g<3> of the lower bar g, and the raised part i<6> forms a stop member which has a rotatable bearing on the part g<3>, a hinge connecting pin passing through the lugs and under the part g<3> to secure the two bars together.
Patent GB-1461398-A (GB)
Title: Pick-up arm apparatus for video disc players
IPC: G11B9/00
Filed: 1973-03-26
Abstract: 1461398 Capacitive playback of disc records RCA CORPORATION 19 March 1974 [26 March 1973] 14395/73 Heading G5R In a playback system of the type using a tuned circuit including both the varying capacitance 11 between a disc record and a stylus 10 and a transmission line TL formed by a conductive pivoted stylus-support arm 20 and a conductive housing 30, the arm 20 has a length between a quarter and a half wavelength at frequencies within the range of variation of the resonant frequency of the tuned circuit and is endloaded by capacitances 70, 80, 90. This simulates the effect of an open-circuited halfwavelength line. Undesired variations of the resonant frequency of the tuned circuit may be opposed by the application of a control voltage to a voltage variable capacitance 80, as disclosed in Specification 1,461,399.
Patent GB-560791-A (GB)
Title: Improvements relating to the automatic control of temperature in heating by high frequency current
IPC: H05B6/50
Filed: 1942-10-14
Abstract: 560,791. Automatic control systems for heating by high frequency current. BRITISH INSULATED CABLES, Ltd., WALTON, G. H., QUALE, J.C., and JONES, P. Oct. 14, 1942, No. 14399. [Class, 38 (iv)] Temperature. The energy supplied by a highfrequency valve oscillator to a body such as a travelling sheet of dielectric material passing between electrodes 2 is controlled by a thermal detector 3 which causes a change in the magnitude and/or phase of the 'grid voltage of a control valve 14, preferably -gas or vapour filled. As shown in Fig. 2, the detector 3 is a resistance in a Wheatstone bridge comprising also a temperature-determining adjustable resistance 4 which is supplied with a.c. at 5. Any unbalance voltage is amplified and applied through a circuit 10 to the grid of a rectifying control valve in the anode circuit of valve oscillators 17, the output of which is coupled by condensers 19 to the electrodes 2; the circuit 10 determines the phase relation between grid and anode volts of the valve 14. In alternative arrangements (1) the amplifier supplies its voltage through transformers and rectifiers to the grids of two valves reversely connected in parallel in a phase shifting circuit to produce changes in phase of the grid volts of valve 14; (2) the detector 3 is a gas-filled envelope, the expansion of which varies two resistances in a circuit such as 10 to shift the phase of the voltage applied to the grids of two back-to-back valves in series with a transformer supplying through rectifier the anodes of the oscillator valves, or the phase shifted voltage may be applied to the grid circuit of a control valve varying the flow of rectified current in a cathode bias resistance of the oscillators (3) the detector 3 may be a bimetallic spiral, adjusting a potentiometer furnishing a voltage to the amplifier of Fig. 2, or a number of thermocouples in series furnishing a variable bias voltage in the grid circuit of the amplifier.
Patent GB-367648-A (GB)
Title: Improvements in or relating to metal vapour rectifiers with anode grids arranged in the anode protecting tubes
IPC: H01J13/20
Filed: 1931-05-15
Abstract: 367,648. Metallic-vapour rectifiers. SIEMENS - SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. May 15, 1931, No. 14413. Convention date, Aug. 29, 1930. [Class 39 (i).] Anode grids are mounted in anode-protecting tubes so that the supports are secured outside the tubes. The grid 2 has supports 8 which pass through apertures 4 in the protecting tube 1 and are supported by insulators 6 mounted in cages 5. In a modification the ends of the supports 8 are bent at right-angles, the insulators 6 being then mounted parallel to the tube.
Patent GB-419826-A (GB)
Title: Improvements in the manufacture and production of films, threads and the like
IPC: C08L27/00
Filed: 1933-05-18
Abstract: Films, threads, and the like of polymerized vinyl compounds are improved as regards their mechanical properties, by stretching them while in a plastic state at an elevated temperature, and allowing them to cool while in the stretched state.  Suitable compounds are interpolymerization products of vinyl compounds, mixtures of polymerized vinyl compounds with other polymerized compounds, such as natural rubber.  Softening agents may be present, as may also a small amount of volatile solvent or softening agents provided that it volatilizes during stretching. With films or threads of pure polystyrene, stretching is effected at temperature from 70 to 200 DEG C., preferably 90 to 130 DEG  C.  The stretching may take place either in air, or inert gas, vapour, or liquid.  Films may be stretched in the longitudinal or lateral direction.  The polystyrene or the like may be extruded in the form of a tube, and the plastic tube blown out by means of an inert gas, and cut up.  Examples are given of the production of films from polystyrene, polyvinyl chloride, a polymerized mixture of vinyl chloride and acrylic acid, a polymerized mixture of vinyl chloride and acrylic acid methyl ester, with para rubber, and also of the preparation of filaments from polystyrene.  Tables are given showing the mechanical properties of the products.
Patent GB-1218771-A (GB)
Title: An armature assembly and method of manufacture thereof
IPC: H02K23/26
Filed: 1968-03-26
Abstract: 1,218,771. Making armature assemblies. GENERAL ELECTRIC CO. 26 March, 1968 [27 April, 1967], No. 14455/68. Heading B3A. [Also in Division H2] In making a rotor assembly for a dynamoelectric machine, a core 61 is secured to a shaft, a layer 66 of insulating material is placed over selected areas of the core and shaft, a plurality of coils are placed on the layer of insulation with their side portions angularly spaced apart, and the side portions are then covered with insulating material which is then machined to the required dimensions. The core 61 is laminated, the laminations being held together by hardened resin, the hardening process being carried out with the aid of a clamping unit 91, Figs. 9 and 10 (not shown), for applying axial pressure to the assembled laminations. The coil side portions are shaped by an hydraulic press 95, Figs. 12 and 13 (not shown), to have a rectangular or trapezoidal cross-section and are located on the outer surface of the insulated core with their major axes radially disposed relative to the core. They are placed in position with the aid of a slotted sleeve 134, Fig. 17, surrounding the core and spaced from it by spacer rods. To position a coil side portion, the bar 136 is removed from the slot in the sleeve 134, one or more spacer rods are removed and a coil side portion inserted through the slot. The bar 136 is then re-inserted in the slot and the sleeve rotated to the next position where a coil side portion is to be inserted. Multi-strand glass binding 81 may be spirally wound round the coil side portions before application of insulating material 82. The coils are maintained under pressure using a split-block fixture 142, Figs. 19, 20 (not shown), while material 82 is being hardened. When the coil ends are to be used as commutator segments they are machined to form a brush accommodating track 152, Fig. 25 (not shown).
Patent GB-514753-A (GB)
Title: Improvements relating to electric tumbler switches
IPC: H01H23/16
Filed: 1938-05-14
Abstract: 514,753. Tumbler switches. BAKER, R. H., and PARSONS, C. W. May 14, 1938, Nos. 14467 and 35355. [Class 38 (v)] In a tumbler switch, links a, b are pivoted at their outer ends, the inner ends being slidably connected under the compression of a spring e to give a toggle action biassed to either side of a line joining their fixed pivots. The link a may comprise a bent strip of metal between the open ends of which an insulating member j, pivoted to the contact arms on the link b way slide. The metal finger-piece h on the link b may be insulated from the contacts by an insert n.
Patent GB-553244-A (GB)
Title: Improvements in or relating to engines
IPC: F02B57/08
Filed: 1941-11-11
Abstract: 553,244. Internal-combustion steam and other engines. DOLMAN, R. A., and PULLIN, A. L. Nov. 11, 1941, Nos. 14541 and 16372. [Class 7 (ii)] [Also in Groups XXVI and XXXI] An internal-combustion or other engine comprises a free piston 12, Fig. 2, reciprocating in a cylinder 11 mounted at its centre on trunnions 13 rotatable in bearings 14. These may be mounted on a vehicle 10 adapted to be propelled by the resultant of the unbalanced forces, or the engine may be stationary, the trunnions 13 forming the driving shaft. The engine is double-acting, fuel, steam or other propelling fluid being admitted to a central port 18 through slots 17 in one trunnion, and exhaust valves 29 in the cylinder heads being actuated through rockers 127 and tappet rods 26 by a cam 24 on one of the bearing sleeves 14. The exhaust is directed by nozzles 32 on fixed inclined vanes 33 in order to assist the rotation of the cylinder. Starting may be effected by compressed air or other medium admitted through passages 19, 20 and valves 21. A number of cylinders may be coupled to rotate together, and the admission and expansion may be timed to take place in each cylinder at the same angular position. If the engine is stationary, the angular relationship of the firing or expansion positions is left unadjusted, the moving parts remaining in balance and the axis of rotation of the cylinders forming the driving shaft of the engine. In a modification, Figs. 7 and 8, radial single-acting cylinders 40 are mounted on a hub 41 rotatable about a bearing support 42 and are each provided with inlet and exhaust valves 43, 44 actuated by fixed cams 45, 46 through tappet rods 47, 48, a cushioning space being provided at the inner end of each cylinder. The cushioning may be effected by a charge admitted through a port 53 from a passage in the support 42 and expelled through a port 54, a passage in the support 42 and a conduit 51 to the inlet valve of another cylinder. In modifications, (a) the axes of the pistons lie on a cone coaxial with the axis of rotation ; (b) the cylinders are arranged tangentially to a circle about the axis of rotation ; (c) rotation is started and may be maintained by an auxiliary engine. The first Provisional Specification also refers to a modification in which one or more pairs of parallel cylinders are arranged to rotate in opposite directions, the pistons in each pair operating in opposition for balancing purposes.
Patent GB-143902-A (GB)
Title: Improvements in linings for centrifugal machines
IPC: B04B7/18
Filed: 1920-05-28
Abstract: 143,902. Hepworth Co., S. S., and Mackintosh, E. M., (Assignees of Mackintosh, E. D.). July 19, 1918, [Convention date]. Strainer separators.-The basket of a centrifugal machine is lined with two foraminous linings a, b, one inside the other, fastened together near one end of the inner one. The free end of the inner lining may be inserted between the fixed end and the outer lining. A separating- strip c may be used, the linings being soldered thereto.
Patent GB-1031942-A (GB)
Title: Shielded electrical connectors
IPC: H01R13/6592
Filed: 1964-04-08
Abstract: 1,031,942. Two-part couplings; cable terminals. ELASTIC STOP NUT CORPORATION OF AMERICA. April 8, 1964 [April 9, 19631, No. 14569/64. Heading H2E. A housing for a termination of, or a connector for, a high voltage cable comprising an electrical conductot 12 surrounded by an insulating covering 10 and an electrically conductive shield 16 with a portion of the shield removed, comprises an inner member 40 of resilient insulating material which grips the covering of the cable and an outer member 50 of resilient electrically conducted material surrounding the inner member along at least part of its length and having a portion 52 in electrical contact with the shield of the cable. Both the inner insulating member and the outer conductive member are preferably sleeves moulded from elastomeric material. The ends of the sleeves are shaped so that the outer sleeve acts as a stress relief core. The conductor 12 is crimped at 25 to a member 20 formed with a socket 22. Both sleeves are cut away as shown to mate in watertight manner with similar sleeves or a plug connector, Fig. 2 (not shown). The member 20 is anchored in the housing by a groove 26 seating in a reduced diameter portion 44 of the inner sleeve and by the end of the shield 18 abutting against a projection of the outer sleeve 50. Insulating jelly is then inserted along a passage 48 into the chamber 46. A socket connector may be angled and secured to a transformer housing 216, Fig. 5 (not shown), in which case the outer sleeve 250 is connected to the housing. The sleeves may also be applied to a cable termination, Fig. 6 (not shown), in which case the outer surface of the inner sleeve may be corrugated.
Patent GB-161862-A (GB)
Title: An improved construction of portable machine for drilling and like purposes
IPC: B23B39/00
Filed: 1920-05-28
Abstract: 161,862. Gill, A. T., and Thomson, A. May 28, 1920. Drilling-machines.-In a portable electricallydriven drilling-machine of the type adapted to move on rails the end frames 1 are connected by channel girders 5 which support rollers 7 on a carriage 6 having bearings 10 for the drill spindle 11. The latter carries the splined bevel pinion 12 engaging a bevel pinion 13 driven from the motor 20 through reduction gearing on a lay-shaft 17. Rollers 9 bearing on the underside of the girders 5 prevent the carriage from rising during the drilling operation. The upper portion of the spindle is threaded at 24 and carries a screwed sleeve 25 having a hand-wheel 26. The drill is brought up to the work, which may be supported on rails 23 by rotating the hand-wheel with its sleeve. The latter is then locked to the spindle by a catch and the working feed is applied by means of a counterweighted hand lever 33 pivoted on links 35 and trunnioned to a collar 31 on the sleeve 25..
Patent GB-1452808-A (GB)
Title: Method of producing tin-plated steel sheet
IPC: C23C26/00
Filed: 1974-04-02
Abstract: 1452808 Tin-plated steel sheet KAWASAKI STEEL CORP 2 April 1974 [3 April 1973] 14652/74 Heading C7B A steel sheet e.g. of killed or rimmed steel, is plated electrolytically or electrolessly with a layer of Ni, Cu or Ni-Sn of 0.005-0.5Á thickness, heated in a non-oxidizing atmosphere to an extent sufficient to completely diffuse the layer into the steel, and finally tin-plated. The first plating may be electrolytic from a Cu pyrophosphate or Ni-Sn acid-chloride bath. Heating may be continuous or box annealing at 600-800‹C for 1 min-10 hours. A halide electrolytic Sn bath may be used and the Sn layer may subsequently be reflowed by electric resistance heating. Conventional cleaning of the steel is effected e.g. by electrolytic and chemical pickling, and the final Sn layer may be electrolytically treated as cathode in Na 2 Cr 2 O 7 .
Patent GB-202734-A (GB)
Title: Process for producting vat dye-stuffs and their intermediate products
IPC: C09B7/00
Filed: 1922-05-25
Abstract: By heating with acid condensing agents naphthalene-dithioglycollic acids or their derivatives are converted into naphthalene-di (oxythiophenes); by oxidation or by condensation with cyclic o-diketones or derivatives thereof, for instance, isatin, naphthisatin, diketodihydrothionaphthenes, or their #-derivatives, or acenaphthenequinone, the oxythionaphthenes yield thioindigoid dyestuffs dyeing cotton in green, violet, brown, olive &c. shades from the hydrosulphite vat; the mixed dyestuffs may also be prepared in one operation by treating a mixture of a naphthalene-dithioglycollic acid and the o-diketone with chlorsulphonic acid.  Examples are given in which (1) naphthalene-2 : 6- or 1 : 5-dithioglycollic acid or 1-chloronaphthalene-3 : 8-dithioglycollic acid is treated with chlorosulphonic acid to yield the corresponding naphthalene-di(oxythiophene) and thioindigo colouring matter; (2) the naphthalene-di(oxythiophene) from naphthalene-2 : 6-dithioglycollic acid is condensed with 5-chlor- or 5-bromisatin, an isatin a -derivative, or two molecules of 2 : 3-diketodihydrothionaphthene-2-anilide; (3) the naphthalene - di(oxythiophene) from 1 - chlornaphthalene-3 : 8-dithioglycollic acid is condensed with one or two molecules of 5-chlor- or 5-bromisatin; (4) naphthalene-2 : 6-dithioglycollic acid is condensed directly with 5-chlorisatin, and 1-chloronaphthalene-3 : 8-dithioglycollic acid with 5 : 7-dibromisatin.  Naphthalene-dithioglycollic acids are obtained from the corresponding disulphonic acids by conversion into chlorides with phosphorus pentachloride, reduction, and condensation with chloracetic acid.  In an example naphthalene-2 : 6-disulphochloride is reduced, first with zinc dust in alcohol to a sulphinic acid, then with zinc and acid to a disulphide which is reduced with hydrosulphite to the dimercaptan and condensed in the same solution with chloracetic acid.  The corresponding dithioglycollic acids from naphthalene-1 : 5-disulphonic acid and 1-chloronaphthalene-3 : 8-disulphonic acid are also described.
Patent GB-544280-A (GB)
Title: Improvements relating to adjustable electrical resistances
IPC: H01C10/38
Filed: 1940-10-03
Abstract: 544,280. Variable resistances. STANTON, T. L. Oct. 3, 1940, No. 14825. [Class 37] A metal slider carries a blade contact which at one portion of its length is provided with a local projection or is shaped in the form of a V so as to seat between two adjacent turns of the resistance coil, a resilient strip or second blade being arranged above the contact blade so as to apply pressure thereto. The resistance wire a is wound on an insulating tube b of hexagonal or other section. Parallel with the axis of the coil are a pair of rods c on which is mounted a metal slider e carrying the blade contact. The slider comprises a channel-shaped portion provided with four lugs which slide on the rods c. At one end the channel shaped portion is formed with a downwardly extending portion g carrying a blade contact h which has at its other end a local projection of a V-shaped portion i bearing against and seating between adjacent turns of the wire coil. Above the contact is a looped resilient metal strip k having one end secured to the slide and its other end engaging the recessed side of the projection i of the blade contact h. After adjustment of the slider a clamping- screw m is screwed down so as to press down the strip k and force the projection i firmly between adjacent turns. A locknut o may be provided.
Patent GB-479582-A (GB)
Title: Improvements in electric water heaters
IPC: F24H9/20
Filed: 1937-05-28
Abstract: 479,582. Interconnected valves. TIPPING, W. F. May 28, 1937, No. 14915. [Class 135] [Also in Group XIII] In a hot-water storage tank in which a base plate 4 carries an electric heater 2, a cold-water inlet 5 and a hot-water outlet tube 8, a rotary control member 20 for the cold inlet 5 also effects positively axial motion between valve elements 15, 16 to allow hot water to overflow into the delivery pipe 8, the elements 15, 16 being normally pressed together by a spring 17 to close the outlet. The control 20 has a handle 21 and a pin engaging a helical groove 24 in the tubular valve-carrying member 7 which is thus raised, rotation being prevented by a pin 25 and slot 7b so that hot water then passes through holes 9 in the member 8 and holes 19, 7c in the member 7 to the outlet. A cam 20a on control 20 engages a spring-pressed plunger head 27 of the inlet valve 5, which is opened after opening of the outlet valve and is closed before closure of the outlet valve.
Patent GB-162564-A (GB)
Title: Improvements in or applicable to gas regulating and reversing valves for gas producers, furnaces and the like
IPC: C10J3/24
Filed: 1920-06-02
Abstract: 162,564. Simons, W., and Evans, I. B. June 2, 1920. Closure members, liquid-seal.-A liquid-seal gas-regulating valve for use in gas furnaces and producers is provided with a water-surface protecting-device which floats or is retained above the surface of the water when the valve is open. The device is shown applied to a valve of the type described in Specification 131,728, in which a bell j dipping into a deep seal f carries a transverse member j<2> adapted to co-operate with a shallow seal h formed in the wall a separating the two flues b, c. The protecting-device comprises a channel-shaped member with a curved top 2 adapted to be raised above the surface of the liquid when the valve is open by springs or by two counterweighted levers 8 pivoted to the casing at 9 and connected by links 6 to U-shaped arms 4 on the member 2.
Patent GB-1179054-A (GB)
Title: Improvements in or relating to fluid dispensers.
IPC: B65D83/14
Filed: 1968-03-28
Abstract: 1,179,054. Pad applicators. HATO CHEMIE A.G. 28 March, 1968 [29 March, 1967], No. 15054/68. Heading A4K. [Also in Division F1] A pressurized dispensing container 1, containing, e.g. a cleaning fluid for upholstery, mirrors, windows, cars or shoes, or a cosmetic, shaving cream, massage oil or sun barrier cream is fitted with a resilient, fluid permeable, disc-shaped spreading element 7 attached, e.g. by adhesive, to a baseplate 6 as of plastics material. For window cleaning the element 7 is pressed on to the surface of a window pane to cause cleaning fluid to be discharged through a hole 8 on to the pane, and the element is thereafter used to spread the fluid and absorb the dirt particles loosened by it. The element may comprise sponge, foam plastics, felt, textile materials or bristles.
Patent GB-119241-A (GB)
Title: Improvements in Machines for Kneading or Mixing Rubber and other Heavy Plastic Material.
Inventor: BANBURY FERNLEY HOPE
IPC: B29B7/26
Filed: 1918-09-17
Abstract: 119,241. Banbury, F. H. March 24, 1917, [Convention date]. Stationary batchmixers with rotary stirrers. - A machine for treating rubber and other heavy plastic material is provided with mechanically - operated means for closing and opening and for locking and unlocking the discharge door in the bottom of the casing of the machine. The swinging door 6, Figs. 1 and 2, is mounted on a shaft 7 and provided with an arm 8 which is connected to the rod 9 of a piston 11 working in a pivoted cylinder 10. When steam, water, or air is admitted to the upper end of the cylinder, the door 6 swings into the delivery opening 5 in the bottom of the casing 4. The shaft 16, which carries yokes 15 having rollers 14 to engage lugs 13 on the door and lock it in the closed position, is provided with a handle 17 connected by a pitman 18 to the rod 19 of a piston 20 working in a cylinder 21. Instead of two separate cylinders for closing and locking the door, the door may be connected to the base 22, Fig. 3, by two toggles 23, 24, one of which is connected with the rod 25 of a piston 26 working in a cylinder 27.