baber/WOPTO huggingface dataset:
Patent GB-1221701-A (GB)
Title: Improvements in or relating to piezo-electric ignition devices
IPC: F23Q3/00
Filed: 1968-02-09
Abstract: 1,221,701. Ignition systems. ROBERT BOSCH G.m.b.H. Feb.9, 1968 [Feb.11, 1967], No.6558/68. Heading F1B. [Also in Division H2] In a Piezo-electric igniter, pressure on a button 22 compresses a spring 21 against the head 26 of a striker 18 until the button forces resilient tongues 20 out of locking engagement with the head whereupon the spring 21 accelerates the stroker into sudden engagement with a pair of parallel-connected Piezo-electric elements 14 to produce a high voltage spark at the gap 28, the elements being supported by an anvil 11 which is separated from the housing 10 of the igniter by a rubber disc 12 so that the mass of the anvil is independent of the housing mass. The pressure drop occurring in the elements 14 after impingement of the stroker produces a secondary discharge across the gap 28 in the opposite direction. This may be prolonged by a slightly inductive series resistor 29 which may be the interference suppression cable for an I. C. engine.
Patent GB-1365092-A (GB)
Title: Process for producing hydrochloric acid
IPC: C23G1/36
Filed: 1971-07-14
Abstract: 1365092 Hydrochloric acid from pickle liquor NEW CANADIAN PROCESSES Ltd 14 July 1971 6567/74 Divided out of 1365091 Heading C1A Hydrochloric acid is produced by heating a liquid aqueous ferric chloride solution at 250‹ to 400‹ F. at or below atmospheric pressure and taking overhead a stream of water vapour and HCl gas. The solution may be heated by means of injecting hot gases into it, e.g. combustion gases from a burner submerged in the solution. If the solution contains ferrous chloride it may be cooled to precipitate the ferrous chloride which is separated from the solution before it is heated. The solution may be derived from waste pickle liquor which has been treated as described and claimed in Specifications 1,365,091 and 1,365,093 to convert it to a ferric chloride solution.
Patent GB-873988-A (GB)
Title: Improvements in or relating to the cold-forming of metal workpieces
IPC: B21J7/14
Filed: 1958-03-03
Abstract: 873,988. Forging; altering physical and molecular structure. APPEL PROCESS Ltd. March 3, 1958 [Jan. 6, 1958], No. 6672/58. Class 83 (4). A method of cold swaging a metal workpiece W comprises applying progressively increasing radial loads thereto to plasticize the metal from the interior to the exterior, then instantly increasing the loads to shape the metal whilst preventing any rearward elongation, and then gradually. and progressively decreasing the loads to elasticize the metal from outside to inside and pre-stress it outside in tension and inside in compression. The swaging is performed by radial dies 11 spring-biased into engagement with the workpiece, Fig. 2 (not shown), and actuated by rollers 17 engaging transverse cam surfaces 16 on rods 14 driven by eccentrics 50. Backing members 18 are supported by adjustable wedges 20 for varying the stroke position. The workpiece which may be of round or hexagonal cross-section, is fed forwardly in steps out-of-phase with the die strokes by means which prevent rearward flow; round workpieces may be rotated. A mandrel 53, Fig. 9 (not shown), which may be toothed is used with hollow workpieces. The method is stated to improve the grain structure and surface of the workpiece and to enable hard steel and molybdenum to be cold swaged. Specific examples are given for swaging hard and mild steel.
Patent GB-130573-A (GB)
Title: An Improvement in the Hulls of Flying Boats, Hydroplanes, Seaplanes or the like.
Inventor: LOUIS JANOIR
IPC: B64C35/00
Filed: 1918-04-22
Abstract: 130,573. Janoir, L. May 25, 1917. [Convention date]. Void [Published under Sect, 91 of the Act]. F l o a t s for aerial machines.- -The hull a of a flying boat or the float of a hydroaeroplane &c., in addition to having a stepped bottom, is provided on its sides with steps c, c<1>, c<2> which may either be in the same plane as or staggered relatively to the bottom steps b, b<1>, b<2>. The faces of the steps may be rectangular or curved.
Patent GB-734314-A (GB)
Title: Improvements in or relating to devices for indicating and/or measuring ionizing rays
IPC: H01J47/04
Filed: 1953-03-12
Abstract: 734,314. Electrostatic generators. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 12, 1953 [March 15, 1952; April 26, 1952],No. 6828/53. Drawings to Specification. Class 35. [Also in Groups XXXVI, XL (a) and XL (b)] A charging device for an electrostatic indicating device comprises a vessel having glass walls of which at least part have relatively poor insulating properties and containing conductive material, e.g. mercury or iron filings, capable of generating an electric charge by friction with the walls of the vessel. The charge is conveyed to the outside of the vessel by means of a conducting probe penetrating part of the wall which has good insulating properties. The vessel may contain gas for limiting the potential acquired by the conductive material. The movement of the conductive material may be effected by shaking or in the case of the iron filings by a magnetic field. The charging device may incorporate in a unitary structure a gas-discharge tube in series with its output. The device may also form a unitary structure with the electrostatic indicating device (see Group XXXVI).
Patent GB-307288-A (GB)
Title: Asphalt emulsions
IPC: C08L95/00
Filed: 1929-03-04
Abstract: 307,288. Emulsion Process Corporation, (Assignees of Halvorsen, A. L., and Travis, P. M.). March 3, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts] . Emulsions, making.-Aqueous emulsions of asphalts, preferably of low mineral content and of melting point not substantially exceeding 100‹ C., are prepared by adding the molten asphalt, slowly and with stirring, to hot water containing a small quantity, not exceeding 0.75 per cent and less preferably than 0.3 per cent of the total emulsion, of a tribasic alkali phosphate, preferably trisodium phosphate. The resulting emulsion is homogenized, for example in a colloid mill, and cooled with gentle agitation. Emulsions containing up to 75 per cent of asphalt are stated to be preparable, the product being light brown liquids of comparatively small viscosity utilizable as paints and other waterproof coverings.
Patent GB-675198-A (GB)
Title: Improvements relating to photoelectric indicators
IPC: H01J40/14
Filed: 1949-03-14
Abstract: 675,198. Photo-electric smoke detectors. TRIST & CO., Ltd., R., and CLARKE, A. G. March 2, 1950 [March 14, 1949], No. 6978/49. Class 40 (iii). In a photo-electric warning system, e.g. for smoke detection, signals which build up slowly to a voltage below a predetermined magnitude due for example to dust deposits on a lens are eliminated by applying the detector output to a potential divider of two sections, both of high D.C. resistance, and tapping the signal to the indicating device across one of the sections, the other having a low impedance to rapidly fluctuating voltages. As shown, cells 1 and 2 connected across polarizing battery 3 form a normally balanced circuit. Reduction of the illumination of one of the cells, e.g. by the presence of smoke, produces a potential difference between points P and Q which is applied across the potential divider, one section of which consists of a resistor R 1 (100 megohms) and the other of a parallel resistor R2 (650 megohms) and condenser Cl (1 microfarad). The control electrode-cathode circuit of a cold cathode tube 16 is connected across resistor R1. A gradual reduction of the illumination of cell 2 drives the control electrode negative (as described in Specification 636,341. but does not trigger the tube unless the unbalance voltage rises above a predetermined level (as in the case of a smouldering fire). More rapid changes, however, trigger the tube through large condenser C1. When the cold cathode tube conducts, a condenser C3, previously charged through a resistor 20, discharges through the tube, operating a relay 17, closing the circuit of a warning device 26. Relay 17 is maintained closed by a small holding current from a low voltage supply and may be reset by a press button 27.
Patent GB-102438-A (GB)
Title: Improvements in or relating to Wood Working Machines.
Inventor: HUNTER ROBERT
IPC: B27F1/04
Filed: 1916-05-17
Abstract: 102,438. Hunter, R. May 17, 1916. Tenoning and dovetailing. - In a vertical machine, or an attachment therefor, dovetail mortises are formed by a series of cutters C<1>, Figs. 1 and 3, of graded sizes, the corresponding tenons being formed by a set of equal-sized cutters P<1>, P<2>, Fig. 5. Referring to Figs. 1 and 3, the work C<x> is supported on an inclined base I and clamped against a plate H by a screw L. An end-stop K co-operating with adjustable fences O is fitted as shown, and the work is moved across the cutters along a guide J. The mortises are completed by reversing the work on the base I; or the base may be adjusted to alter the position of the work. In forming the tenons, the work is carried on an horizontal support V, Fig. 5, and clamped against an inclined hinged member T. The second cut (to complete the tenons) is effected with the work on the support W, the member T having been moved into the dotted position shown, by means of the hand-lever U. Guards N may be fitted on to the work-holders.
Patent GB-719463-A (GB)
Title: Improvements in or relating to optical projection apparatus
Inventor: DIETRICH CORNELIUS FRANK
IPC: G02B21/00
Filed: 1951-03-27
Abstract: 719,463. Optical projection apparatus. OPTICAL MEASURING TOOLS. Ltd. March 27. 1952 [March 27, 1951], No. 7131/31. Class 97(1) [Also in Group XIX] Profile projection apparatus comprises a mounting for a plurality of objectives, movable to bring a selected one into operation, a projection screen, an object holder movable for focusing, an illuminant for the object and a system comprising one or more reflectors movable to vary the light path and the magnification of the projected image. In the form shown the top 12 of a casing 11 carries a lens turret 13, an object holder 14 and, in trunnions 29, a lamphouse 15 with condenser 34. The turret carries lenses 20, 21, 22, 23, 24 and knobs 35 by which the turret may be rotated to bring the lenses into use. The turret positions are determined by detent mechanism. The turret carries near each lens, an adjustable mirror 37 by which light from the lamphouse is directed on to the object on the holder 14. The lenses 20 &c. being of different focal lengths are arranged at different heights so that the images projected by each are in focus. The mirrors 37 are also at different heights and cams, not shown, are provided on the turret periphery connected to a link which tilts the lamphouse about the trunnions 29 to direct the light beam on to the mirror 37 in use. The object holder 14 has a central glass panel with transverse adjustments by knobs 43, 44 and a focusing adjustment by a knob 42. The light reflected from the object falls on an inclined mirror 25 and is thence reflected by mirrors 26, 27, 28, in a chamber 16, on to a screen 19. The mirrors 25. 26 are carried on a cradle 47 vertically movable on pillars 53, 54. The pillars each have, at the top, a ball 58 in a fixed socket and. at the bottom, transverse screw adjustments to render the pillars parallel. The cradle 47 is connected to a counterweight 71 by a steel tape 68 passing over a drum 69 rotatable, through worm gearing, by a knob 77 or by an electric motor, not shown, operated in opposite directions by push buttons 82, 83 on a panel 84. Limit switches stop the motor at the ends of travel of cradle 47. The drum 69 drives through gearing 88, 89 a drum 85 behind a window 87. The drum carries scales showing the magnification of the projected image. There is one scale for each objective, the scale in use being illuminated. Lamps for this purpose are controlled by switches actuated by the lens turret.
Patent GB-1047615-A (GB)
Title: Improvements in electrostatic coating apparatus
IPC: B05B5/053
Filed: 1964-02-20
Abstract: In order to overcome the problem of the poor deposition of coating material which occurs at those sharp edges of articles being coated electrostatically which are not closely adjacent to other edge portions of the article an auxiliary element which is adapted to modify the electrostatic field in the vicinity of the sharp edge is positioned in close relation thereto.  The auxiliary element may be metallic and connected to a potential substantially that of the article, or may comprise a metallic core with an insulating sheath the core being at the same potential as the workpiece.  Semiconductor elements may also be employed.  Coating material deposited on the element may be removed by means provided to scrap or wipe this material from the element, particularly when it takes the form of a travelling band of material (Figs. 8-10 not shown).  The electrostatic coating means may comprise a nozzle of fluidized bed and the invention is described in relation to the coating of wire mesh, drawn sheet metal articles and flat elongate strips of metal.
Patent GB-539828-A (GB)
Title: Improvements in brick making machines of the semi-plastic type
IPC: B28B3/08
Filed: 1940-04-23
Abstract: 539,828. Brick-moulding machines. WHITTAKER & CO., Ltd., C., and WHITTAKER, N. April 23, 1940, No. 7285. [Class 87 (ii)] In a machine of the type having a " drop-box " operated by two cams c on a cam shaft C, the base of the machine is formed as a single unit which carries a central bearing b for the camshaft and has two upright end flanges A' to which the side members A<SP>2</SP> of the frame of the machine are secured. The drop-box may actuate several lower plungers. The upper plungers are carried by a cross head D vertically reciprocated from the cam shaft C by connecting rods E.
Patent GB-1144711-A (GB)
Title: Apparatus for heat sealing lids on preformed containers
IPC: B65B7/28
Filed: 1966-02-18
Abstract: 1,144,711. Seaming non-metallic sheet material. PACKAGING INDUSTRIES Ltd. Inc. 18 Feb., 1966 [18 Feb., 1965], No. 7292/66. Heading B5K. [Also in Division B8] Apparatus for securing a plastics cover to a container or a package "blister' to a card and including a pressure applying head and heating electrodes, includes controls for selecting desired conditions, e.g. temperatures and/or times of pressure application, according to the needs of various packages being sealed. The invention is applied to apparatus as described with reference to Figs. 1-4, 4B, 4C of Specification 1,083,022 and also includes modifications of the electrodes and package supporting trays of that apparatus. The machine includes, as in the earlier apparatus, a series of tappings of different voltages connectible to appropriate electrodes on the package supporting trays and includes also timers which control the sealing period. Each tray as it is wheeled beneath the plunger operates a switch peculiar to itself to initiate the timing of the operation by its own individual timer. It also operates switches common to both trays which must be closed to permit sealing as in the earlier machine. The arrangement may also permit preselected temperatures, different for each tray, to be applied automatically in response to operation of the timer control switches by the trays and closure of the common switches. Each tray may include a frame to receive a punch card, the programme of which is engaged by a battery of spring-loaded pins mounted on the sealing plunger, pins passing through the card to complete circuits to select desired variables in the operation. In order to avoid the cooler spots on electrodes adjacent their terminals, an electrode 26 may consist of two overlapping U-shaped halves 26<SP>1</SP>, 26<SP>11</SP>, Fig. 5, the overlapping portions O being insulated from each other and separately connected to terminals L 1 , L 2 . Electrodes engaging both above and below a package flange may have terminals on one pair of opposed sides of one and the other pair of opposed sides of the other. A tray having such upper and lower electrodes 26, Figs. 8, 10, has a hinged upper portion 252 carrying one electrode, this portion closing on the assembled containers and lids &c. before the tray is passed beneath the sealing plunger. The portion 252 fits within a recess in the lower portion 250 which has a container receiving recess 260 co-operating with a recess 259 in the upper portion. This tray forms the subject-matter of Specification 1,144,712. The timers may include time delay relays in their circuits to cause current to be shut off earlier than release of pressure by the sealing head, to provide a cooling period.
Patent GB-665142-A (GB)
Title: Solenoid with plunger
IPC: H01F7/12
Filed: 1949-03-17
Abstract: 665,142. Electromagnets. DEHN, S. G. (Soreng Manufacturing Corporation). March 17, 1949, No. 7342/49. Class 35. A plunger type A.C. solenoidcomprises a U-shaped frame 9 embracing a winding 5 within which the stem 8 of a T-shaped plunger 7 reciprocates, the frame has an air-gap 14 which is substantially wider than the plunger stem 8 but, when the latter is attracted, the air-gap is filled with an enlarged part 20 of a cross-piece 18 on the plunger. When the plunger is in the attracted position, the surface of the head 18 facing the front surfaces 19 of the frame 9 abuts the said surfaces 19. Fig. 6 shows one of the two shading rings 33, each of which is embedded in slots in the frame 9 and so disposed diagonally across a corner of the latter that a bottleneck of the lines of force is avoided. Fig. 5 shows one of the two plunger guides 24 having crossmembers 40 which overlie the opposite sides of the parts 13 of the frame 9 to which they are fixed by rivets 41, Fig. 4 (not shown). Spring members 47, Figs. 7, 10 (not shown), are provided to maintain the shading rings in position to press against the winding spool in order to hold it resiliently sealed against the closed end of the frame and to act as a cushion to the plunger head 18 when the latter approaches the attracted position.
Patent GB-107220-A (GB)
Title: Improvements in Boring Tools.
Inventor: CLAYTON JAMES
IPC: B23B29/034
Filed: 1916-05-24
Abstract: 107,220. Clayton, J. May 24, 1916. Cutters and cutterbars.-Boring bars. and heads are slotted transversely to receive cutters u, b arranged to pass one another or reduced at their inner ends to overlap, adjusted by a double eccentric h, and clamped by a screw-controlled wedge k. The cutters are splined together and may have renewable cutting ends i.
Patent GB-1383152-A (GB)
Title: Discharge apparatus for sponge iron
IPC: C22B1/14
Filed: 1973-02-15
Abstract: 1383152 Discharging shaft furnaces THYSSEN NIEDERRHEIN AG HUTTEN-UND WALZWERKE 15 Feb 1973 [24 Feb 1972] 7389/73 Heading F4B Apparatus for discharging sponge iron from the base of a shaft furnace comprises a plate 5 reciprocable over a discharge table 3 by draw bars 6 carried in cantilevered bearing housings 9 which are attached to the discharge apparatus housing through flexible seals 12 having extension limiters. The seals Fig. 2, have casehardened dust bars 20 and the bellows 12 are filled with resilient refractory material. A dust extractor 22 is connected to each seal. The drawbars 6, which may be cooled, are actuated by pistons 8, Fig. 1, connected to cross-bars between the drawbars at each side of the furnace. The connection between the pistons and the cross-bars are below the axis of the drawbars, and the cross-bars may be supported by rollers on a track.
Patent GB-1332444-A (GB)
Title: Device for centreless grinding machine
IPC: B24B49/04
Filed: 1972-02-17
Abstract: 1332444 Grinding LIDKOPINGS MEKANISKA VERKSTADS AB 17 Feb 1972 [10 March 1971] 7423/72 Heading B3D A centreless grinding machine for a cylindrical workpiece 3 having a radial flange 5 with two radial flange surfaces 6, 7 comprises two measuring fingers 27, 28 which contact the respective surfaces and are connected to a device for registering the thickness of the flange and controlling a device for effecting axial movement of the grinding wheel so that the flange is ground to a desired thickness. The workpiece rests on a cradle 1 and is rotated by a driving roller 8 which is slightly inclined so that the workpiece is urged axially until the flange surface 6 abuts a stop 2. The grinding wheel has operative surfaces 10, 11 for grinding the cylindrical surface 4 and surface 7 of the flange and is mounted on a hollow shaft 13 in screw threaded engagement with a spindle 16 rotatable by gearing 18, 19, 20 driven by a motor 21 to effect axial movement of the wheel for grinding the flange to a desired thickness. The motor is controlled by a unit 23 connected by an indicator 41 to a pair of devices 29, 30, each of which has a coil 37, 38. A rod 35, 36 is movable in each coil and is mounted on a respective finger 27, 28. The fingers are mounted on pivots 31, 32 and are urged by springs 33, 34 to engage the flange surfaces 6, 7.
Patent GB-557465-A (GB)
Title: Improvements in or relating to rollers for use in machinery for preparing and spinning fibrous materials
IPC: D01H5/74
Filed: 1942-06-02
Abstract: 557,465. Drawing rollers for spinning &c. frames; compound fabrics. LAIRD, T. H. June 2, 1942, No. 7432. [Class 120 (ii)] [Also in Group VIII] A pressing and drawing roller for preparing and spinning machinery is made from one or more layers of granulated cork, rubber or leather or of sawdust of the plane or sycamore arranged alternately with thin layers of woven-fabric, such as cotton or linen, in the form of a sandwich ; fabric layers are located on the outside of the sandwich and the whole is impregnated with a suitable resin and compressed into a homogeneous layer of the required thickness. As shown the roller is made from a layer 1 of ground cork &c. and layers 2, 3 of woven fabric, the mass being moulded to the required size, or machined, to produce the roller which is mounted on a spindle 8 or may be secured to a boss 9 on the spindle, the boss being cut away to form an annular shoulder 11 which engages a central hole in the roller, this being secured to the boss by bolt 13.
Patent GB-1184033-A (GB)
Title: Improvements relating to Washers for Screw Connections
IPC: F16B31/02
Filed: 1968-02-15
Abstract: 1,184,033. Tension indicating washer. DAIMLER-BENZ A.G. 15 Feb., 1968 [16 Feb., 1967], No. 7480/68. Heading F2H. A washer for use with a screw connection for giving a visible indication of the clamping force on tightening of the connection comprises an incision 12 running around its outer peripheral edge 11a and accommodating a body 13 which emerges from the said edge upon the attainment of a predetermined adequate clamping force. The incision may be parallel sided and open towards the inside into a chamber and the body 13 may be a viscous coloured substance. Alternatively the incision may be wedgeshaped and the body 13 also wedge-shaped.
Patent GB-550104-A (GB)
Title: Improvement in electric discharge tubes and circuit arrangements therefor
IPC: H01J21/02
Filed: 1941-06-14
Abstract: 550,104. Thermionic valves. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). June 14, 1941, No. 7574. Drawings to Specification. [Class 39 (i)] The subject-matter of this Specification is identical with that of Specification 617,187, [Group XL (a)]