baber/WOPTO huggingface dataset:
Patent GB-1125181-A (GB)
Title: Improvements in or relating to apparatus for truing grinding wheels
Inventor: MERRITT HENRY EDWARD
IPC: B24B53/06
Filed: 1965-04-10
Abstract: 1,125,181. Trueing grinding wheels. MERRITT & CO. (ENG.) Ltd. 7 April, 1966 [10 April, 1965], No. 15335/65. Heading B3D. Apparatus for trueing grinding wheels to a desired profile, such as an involute, comprises a movable member 16 mounted for universal angular movement about a point 15 on a base 11, a holder 23 on the movable member for a trueing tool 24, profile generating means including a guide (26, 27, Fig. 3) fixed relative to the base, a follower 29 adapted to co-operate with the guide, and a connection 21, 22 between the movable member and the follower for transmitting movement of the follower to the movable member so that the latter moves about the point, and the tip of the trueing tool when held in the member moves in a path corresponding with the desired profile. The holder 23 for the tool 24 is mounted on the movable member 16 for adjustment of the tip 25 of the tool along an axis 18 and the member is formed with cranks 17 having crank-pins 19, 20 mounted in a rectangular frame 13 on the axis 18. The frame is movable about a horizontal axis 14 in a carrier 10 which in turn is movable about a vertical axis 12, the axes 12, 14 and 18 intersecting at a point 15. The profile generating means consists of a pair of guide plates (26, 27, Fig. 1) spaced apart and mounted on the base 11, the plates semicircular edges on which a rooking plate, forming the follower 29, rolls and which is connected to the guide plate by steel tapes 30. A T-shaped arm (32) is rotatable about a dowel (37) on the axis (28) of the guide plates and extends between the plates and through a slot in the rocking plate. The cross-piece of the arm carries rollers (35) which engage tracks (36) in the plate and a spring-pressed plunger (40) acts between the dowel and arm to press the rollers against the tracks and hence the rocking plate against the guide plates. The plate is rocked along the guide plates by a crank (41) which has a roller (42) engaging a slot (43) in the arm (32) and is connected by a wheel (46) rotated by a worm (45) manually or otherwise rotated. The plate 29 is connected to a swivel head 51 on which is an adjustable setting block 50 having a recess 52 for a ball 21 connected to the crank-pin 20, and a slot for a guide ball 22 connected to the ball 21. As the plate 29 is rocked about the guide plates (26, 27), the movable member 16 is rocked about the point 15, the tip of the tool 24 moving in a substantially involute path. Adjustment of the block 50 along the head 51 varies the tooth thickness. The swivel head consists of a pair of relatively rotatable discs, adjustment of which permits adjustment of the member 16 to be effected through 180 degrees relative to the guide ball 22. In another embodiment, the frame 13 is U-shaped and is mounted on a single-armed carrier. The apparatus may be used to true wheels for grinding milling cutters or splines and profiles other than involutes.
Patent GB-399225-A (GB)
Title: Improvements in or relating to a method of and apparatus for welding and the welded articles produced thereby
IPC: B23K11/06
Filed: 1932-03-24
Abstract: 399,225. Welding tubes &c. REPUBLIC STEEL CORPORATION, Republic Building, Youngstown, Ohio, U.S.A.-(Assignees of Cramer, F. W. ; 1868, Coronda Avenue, Youngstown, U.S.A.) March 24, 1932, No. 15403/33. Convention date, Nov. 20, 1931. Divided on 399,532. [Classes 83 (ii) and 83 (iv).] In electrically welding pipe or or structural members, particularly pipes of large diameter and wall thickness, the spacing between the seam edges and the points at which current enters and leaves the blank is controlled so as to cause the current to flow across the seam substantially equally in all parts thereof and thus obtain a weld throughout the radial width of the seam. The electrodes 90, 91, are mounted so that the resistance between the radial extremities of the seam and the points 93 of greatest pressure are equal. These points in the case of an ordinary pipe are equidistant from the radial extremities of the seam 92 and a line joining the points 93 passes through the centre of the seam. When welding a lined pipe made from metals of different resistances the position of these points is varied so as to give the effect previously stated. In welding a T-section, one electrode 96 is arranged opposite the mid-point of the seam 100 so that straight lines from the points of contact of a pair of electrodes 95, 97 to the point of contact of the electrode 96 pass through the centre of the seam. The flow of current may be further controlled by adjusting the electrode pressure.
Patent GB-240521-A (GB)
Title: Automatic railway crossing danger signal
IPC: B61L29/28
Filed: 1924-06-26
Abstract: 240,521. Paora, R. June 26, 1924. No Patent granted (Sealing fee not paid). Electrical systems, automatic; lamp signals.- Warning signals are given automatically by a train approaching a crossing from either direction by means of train-operated two-way switches disposed at opposite sides of and some distance from the crossing, the first operated switch closing the signal circuit and the other switch breaking the circuit. A post 4 situated near the crossing 3 carries warning devices shown as lamps 6, 8, 9 and bell or horn 5. The lamps 6 are disposed on a pivoted horizontal arm 7 normally held transverse to the rail track by a spring 30, and moved to the warning-position shown, transverse to the crossing 3, by friction drive 28 from a motor 29. Each switch device (one shown) comprises a post 1 supporting two switches 14, 15 respectively controlling the bell and lamp circuits, the motor 29 being controlled in conjunction with the lamps. The switches are operated by forked arms 16 engaging studs 17 on a vertically movable rod 13, urged downwards by a spring 18. The lower end of the rod has a roller 19 resting on a cam 20 carried by a horizontal shaft 21, which carries a head 23 with contact arms disposed in the path of a striker 25 carried by the locomotive, the head 23 being retained against accidental displacements by springs 24.
Patent GB-258016-A (GB)
Title: Improvements in rolling appliances for facilitating movement of heavy bodies
IPC: B62B5/00
Filed: 1925-06-15
Abstract: 258,016. Philip, A. J. June 15, 1925. Hand-trucks.-The movement of a heavy body is facilitated by resting it on a block E supported by rollers or castors A. The cups B in which the rollers &c. are mounted are detachably connected by screws or bolts C to the block E in order that one set of rollers may be used with a series of blocks E shaped to accommodate bodies of different shapes. The block E may be made of wood, rubber or vulcanite.
Patent GB-812551-A (GB)
Title: Improvements relating to windshield wipers
IPC: B60S1/38
Filed: 1955-05-27
Abstract: 812,551. Windscreen cleaners. TRICO PRODUCTS CORPORATION. May 27, 1955 [June 4, 1954], No. 15435/55. Class 138(1). A windscreen wiper comprises a flexible blade 3, 9, Fig. 2, and a superstructure, the latter comprising two yokes 14, 15 spaced along the blade 3, 9, and bearing at each end on the blade, and a linkage 16, 17, for distributing pressure from an actuating arm 1 to the yokes 14, 15, the linkage also bearing on the blade at a point 21 between the yokes. The wiper blade comprises a squeegee 3 having an anchoring head 5, Fig. 4, connected by a flexible neck 7 to a body portion 6 having a wiping edge 4, and a flexible backing strip 9 provided with cross strops 10 to embrace the bead 5. Each side of the squeegee is provided with skid knobs 12 and blade roll-checking beadings 13. The superstructure comprises, the two yokes 14, 15, disposed at the ends of the blade and each having their ends slidably connected to the backing strip 9, a lever 17 pivoted at 18 at one end to the yoke 14 and slidably connected at its other end at 21 to the backing strip 9, and a lever 16 having one end pivoted to the lever 17 at 19 and its other end pivoted to the yoke 15 at 20, the lever 16 being provided with a clip 2 for attachment to the wiper arm 1. The slidable connections between the ends of the yoke and also the end of the lever 17, with the backing strip 9, are in the form of feet 22, Fig. 4, provided with claw extensions 23. The blade and superstructure may be connected to the arm 1 so that the yoke 14 is remote from the wiper arm shaft. When used on a " wraparound " windscreen the pressure application at 21 ensures that the central portion of the blade is not lifted from the windscreen as the end of the blade, extending beyond the wiper arm, passes over a sharply curved portion between the front and a side of the windscreen. The connections 18 and 19 may each comprise a pin on the base wall of the lower connected part passing through an aperture in the base wall of the upper connected part, the top of the pin being provided with an enlarged head, and a sheet of rubber being interposed between the channels of the nested parts and around the pin, to prevent noise. The upper part may also be provided with depressed dimples at opposite sides of the pin to form knife edge bearings for supporting the lower part for pivotal movement about a transverse axis. Specifications 702,849, 702,900, 733,626, 740,924 and 790,496 are referred to.
Patent GB-593874-A (GB)
Title: Improvements connected with ladders
IPC: E06C1/12
Filed: 1945-06-19
Abstract: 593,874. Ladders. MATTHEWS, C. H. June 19, 1945, No. 15504. [Class 20(ii)] A metal ladder has its sides 5 of C section so that they may interlock with thosc of another ladder having its sides 6 of similar cross-section but reversed with respect. to the first, to form an extensible ladder. The rungs are tubular, corrugated longitudinally and formed with shoulders 8 against which the ladder sides abut. The rungs are expanded into the holes in the ladder sides and their ends swaged over. Spring- loaded hooks 11 with finger levers 12 are pivoted on blocks 10 secured to a lower rung on the extending ladder to engage a selected rung on the lower ladder.
Patent GB-922665-A (GB)
Title: Diagnostic composition
IPC: G01N33/62
Filed: 1961-04-28
Abstract: A composition for detecting and estimating urea in, e.g. blood, comprises urease, a pH indicator and a buffer.  Specified indicators are phenol red, bromsulphalein (phenol tetrabromphthalein disodium sulphonate), nitrazine, metacresol blue, bromthymol blue, bromcresol purple and in combination phenol red and bromthymol blue.  Specified buffers are of phosphate, citrate and hexamate type.  Other additives may be present including algin and protective, thickening, wetting agents and inert background dyes.  In examples, test strips are prepared by applying a urease/buffer/algin composition to cellulose strips, dipping the thus treated strips into an indicator solution, drying, and treating with ethyl cellulose as described in Specification 911,181 in relation to glucose oxidase compositions. The examples also describe the preparation of multiple area strips in which various areas are impregnated with compositions of different buffer concentration.  These strips are prepared as described in Specification 867,192.
Patent GB-255205-A (GB)
Title: Improvements in or relating to electric fuses
IPC: H01H85/20
Filed: 1925-06-16
Abstract: 255,205. Sykes & Dyson, Ltd., Sykes, P., and Cooper, W. June 16, 1925. Fusible cut-outs.-An electric fuse comprises a base a, Figs. 2 and 3, having secured thereto, upon a shoulder a, a protective shield b, and bridge-pieces i, the blade contacts j of which pass through slots in the shield b and engage fixed contacts f. The space between the base and the shield is divided into compartments by a strip a<3>. The fixed contacts are formed of the usual legs f reinforced with metal strips g, and side strips h bent at h<2> guide the blades into position. The fuse wire k is secured to the contact blades and is led through channels n, Fig. 4, and across a recess i' in the carrier i.
Patent GB-839482-A (GB)
Title: An improved method and apparatus for the production of attenuated fibres from heat softenable materials
IPC: C03B37/04
Filed: 1957-05-16
Abstract: 839,482. Centrifuging of glass fibres. OWENS-CORNING FIBERGLAS CORPORATION. May 16, 1957 [May 18, 1956; May 21, 1956], No. 15597/57. Class 56. In the making of glass fibres by the centrifugal process heat, wholly or mainly radiant heat, is provided to the zone about, and bordering, the spinner. In the form shown, the heater 28 is a gas-heated radiator arranged below the outlet of the attenuating blast 25. In another form, the radiator is above such blast. The radiator may alternatively be heated by an electric resistance or it may be a ring forming one plate of a dielectric heater, the spinner forming the other plate connected to the H.F. generator. In another form the heater may comprise air induction coil surrounding the spinner and provided with a cooling jacket. In another form Fig. 6, the attenuating blast is omitted and the attenuation effected by the traction of the winding spool 143, the radiant heat being provided by generator 133 and coil 132.
Patent GB-399447-A (GB)
Title: Improvements in and relating to suckers for lifting or conveying sheets in printing machines and the like
IPC: B65H3/08
Filed: 1933-05-30
Abstract: 399,447. Feeding sheets. SCHNELLPRESSENFABRIK AKT.-GES. HEIDEL. BERG, Heidelberg, Germany. May 30, 1933, No. 15616. Convention date, June 11, 1932. [Class 100 (i).] Sheet - separators.-A sheet-separator of the kind in which a number of suction devices 2 formed with suctionnozzles 4 are mounted on a common pipe 1 is arranged so that it can be adapted for lifting papers of various thicknesses readily and efficiently. For lifting thick papers the bores 5 of the nozzles 4 act directly on the sheet, but for thin sheets a rail 11 fitted with smaller apertures 12 is slid over the nozzles 4 by means of a handle 13, and the apertures 12 are preferably registered with the bores 5 by an extension 14 of the handle 13 which engages the first nozzle 4 when registration occurs. The shield 11 is formed with an unbroken bottom surface which rests like a ruler on the paper. Each nozzle can be put out of action by rotating it by means of a handle 8 which puts :a transverse bore 6 out of register with an opening 7 in the suction pipe 1.
Patent GB-432386-A (GB)
Title: Method of protecting turbine blading
IPC: F01D5/28
Filed: 1934-05-25
Abstract: 432,386. Turbine blades. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, CHITTENDEN, J. P., South Lodge, Westfield, and BUCKLEY, F., 93, Newbold Road, both in Rugby. May 25, 1934, No. 15622. [Class 110 (iii)] A process of producing an erosion-resisting edge on a turbine blade consists in depositing on the blade by a mechanical process such as welding a harder material, in subsequently further hardening this material by mechanical working such as cold rolling or hammering, and in electrolytically depositing a coating of a still harder material. The first material may be manganese steel applied by electric welding from an electrode of that material, and the electrolytic coating may be of chromium. The piece welded on may be a complete blade tip or only a thin shield.
Patent GB-333314-A (GB)
Title: Improvements in and relating to means for supporting baking pans or trays
IPC: A21B1/46
Filed: 1929-05-18
Abstract: 333,314. Dumbleton, C., and Baker Perkins, Ltd. May 18, 1929. Endless-chain conveyers with comb, flap, platform, bracket, and shelf carriers. -In an oven for baking biscuits, cakes, and the like, the bars d which support the trays or pans fare substantially " pearshaped " in cross section to avoid masking of the trays. The invention is shown applied to a swing- ing tray support comprising end frames a which are carried bv chains b and connected together by cross-bars c. The latter, together with the longitudinal tray-supporting bars d, are formed from metal strips bent to any of the shapes shown in Fig. 4. Skids e may be disposed below some of the bars d and connected at d<1> to their outer ends, these latter being upturned or having separate pieces d<2> secured thereto to form retaining members for the trays f. Lateral displacement of the trays is prevented by plates g let into or welded upon the bars c.
Patent GB-130840-A (GB)
Title: Process for Manufacturing Strontium Peroxide.
Inventor: PIERCE JAMES BUCHANAN
IPC: C01B15/043
Filed: 1918-09-26
Abstract: 130,840. Pierce, J. B. Sept. 26, 1918. Strontium peroxide is prepared by treating strontium oxide with oxygen under pressure, pressures of 1500/1800 lb. per sq. in. being mentioned. The reaction is facilitated by heat, 400- 500‹ U .being suitable.
Patent GB-912411-A (GB)
Title: Improvements in or relating to apparatus for forming a continuous tobacco filler
Inventor: LABBE FRANCIS AUGUSTE MAURICE
IPC: A24C5/18
Filed: 1958-05-15
Abstract: 912,411. Cigarette-making machines. MOLINS MACHINE CO. Ltd. May 14, 1959 [May 15, 1958], No. 15709/58. Class 130. In an apparatus having pneumatic tobaccofeeding means, Fig. 1, of the kind described in Specification 895,733 and wherein suction applied above a perforated conveyer band 58 progressively builds up a tobacco filler in a trough having divergent side wall portions 159, Fig. 3, the portions 159 are arranged progressively further from the band 58 in the direction of band movement.
Patent GB-107711-A (GB)
Title: Improvements in Devices for Raising Sunken Vessels.
Inventor: STAFFORD JAMES MORTON
IPC: B63C7/04
Filed: 1916-11-09
Abstract: 107,711. Stafford, J. M. Nov. 9, 1916. Sunken ships, raising.-For raising sunken ships, a looped hoisting cable is lowered at each end of the ship and grapples are lowered down these cables, the grapples being connected by tie ropes so as to draw the cables towards each other beneath the ship and having means controlled from above water for gripping the cables. Ropes with strong lower ends are attached to the ends of the vessel and are wound round drums carried by buoys which float on the surface to indicate the position of the sunken ship. A gripping device, comprising a body portion 6 connected to a lifting rope 14 and jaws 8 operated by wires 13, levers 9, and cam surfaces 8<a>, is lowered down each of the ropes. A bifurcated frame 15 is carried by each gripping device and carries fragile guides 17 for a looped hoisting cable 16 which is lowered with the gripping device. Gripping devices 18 are then lowered down each end of the two looped cables 16, the devices 18 on the same side of the ship being connected by ties 21 so as to draw the cables 16 together. By pulling on the cables 16, the guides 17 are fractured and the cables 16 are drawn into operative position below the ship.
Patent GB-651551-A (GB)
Title: Improvements in coolers for discharge tubes
IPC: H01J19/36
Filed: 1948-06-15
Abstract: 651,551. Thermionic valves. PHILIPS ELECTRICAL, Ltd. June 15, 1948, No. 16084. Convention date, June 18, 1947. [Class 39 (i)] In a transmitter tube 1 the anode 2 is cooled by air or other gas which flows through inlet and outlet ports 8, 9 provided in the base of two-part housing 6, 7 which supports and contains the anode 2. The latter is equipped with cooling sectors 3 and the lower housing part 7 resting on the floor 11 is preferably of insulating material, for example ceramic material. Two tubes 14, 15 underneath the floor 11 register with the inlet and outlet ports 8, 9 and floor apertures 12, 13 and serve to supply and discharge respectively the cooling air.
Patent GB-859145-A (GB)
Title: Flow control apparatus
IPC: D21F1/02
Filed: 1957-05-21
Abstract: 859,145. Controlling flow of pulp &c. KIMBERLY-CLARK CORPORATION. May 21, 1957 [May 29, 19561, No. 16115/57. Class 96. In controlling the flow of a stream of papermaking fibres &c. suspended in a liquid or gas, a member 11, Figs. 1 and 2, e.g. a vane, having a blunt leading edge 45 with a width, at least, substantially equal to the average length of the longest 5%, by number, of all the fibres in the suspension, is located in the stream, e.g. pivotally in the throat of a flow-spreader 13. The length of the member in the direction of flow may be at least twice its maximum depth and its trailing edge 19 may be tapered. The leading portion 51 of the member, Fig. 3, may be flared. The member may form part of a slice described in Specification 859,144. Specification 733,851 also is referred to.
Patent GB-595287-A (GB)
Title: A method of coating surfaces with quartz
IPC: C03C17/245
Filed: 1945-06-25
Abstract: <PICT:0595287/III/1> <PICT:0595287/III/2> A surface is coated with quartz by covering the quartz with a metallic-silicate, placing the coated quartz within an electrically heated filament in a vacuum to heat the quartz to a high temperature and to evaporate the quartz, and depositing the quartz on a support surface.  Specified silicates are those of aluminium, magnesium, calcium, barium and mineral silicates such as talc, white mica and "Asbestine" (R.T.M.) and a temperature of above 1,500 DEG C. is necessary to evaporate the quartz.  To produce the silicate coating the quartz may be tumbled in the presence of the silicate powder and may afterwards be treated to fuse the coating to the quartz.  Referring to Fig. 7, a bell jar 16 on a base 15 contains an electrically energised heating filament 14 supporting pieces of the coated quartz 10.  The surface to be coated 21 is supported inside the jar by means of member 20.  The chamber is evacuated and the filament energised when the quartz is thermally evaporated and deposited upon the surface 21 (e.g., glass).  Fig. 9 shows a modification in which the bell jar contains several coiled electrically heated tungsten filaments 14 supporting silicate coated quartz rods 12 and filaments 14 or supporting pieces of chromium (or silver) 31, while a glass plate 21 is also supported inside the jar. The jar is evacuated and the filaments supporting the metal energised, giving the glass a coating of chromium (or silver) after which energisation of the filament carrying the quartz gives the metal-coated glass a coating of quartz.
Patent GB-717491-A (GB)
Title: Improvements in or relating to tuning devices
IPC: H01F21/06
Filed: 1950-06-28
Abstract: 717,491. Inductors. AUTOMATIC MANUFACTURING CORPORATION. June 28, 1950 [June 28, 1949], No. 16138/50. Class 38(2) A permeability type tuning device, for radio or ultra H.F. circuits, comprises one or more units, each having a complete ring- shaped magnetic core a portion of which is enclosed by an arcuately-shaped coil concentric therewith, and means for mounting the core and coil to afford relative angular movement, the core being of different materials in different arcuate portions thereof to exhibit different permeability characteristics when the angular position of the core is varied relative to that of the coil. One core, of powdered iron, may have a body of uniform permeability throughout, but have a portion coated with a material of higher electrical conductivity, such as silver, copper of aluminium; the body alternatively may be of two portions of different permeability cemented together, Fig. 6 (not shown). The coil comprises a number of helical turns, possibly of variable pitch to provide linear tuning, and may consist of two complementary juxtaposed stampings each having partial turns 7 spaced by slots 8 and joined as by soldering the respective adjacent flanges 9, 10; or the coil may comprise a helically wound strip conductor, Fig. 6 (not shown). The coil stampings shown may be extended at 17 to form condenser plates to provide variable capacity in the unit. The coil may be mounted by its lugs 18 and by terminal strips 13 on an insulating ring 20 and the core may be supported by a radial arm 4 fixed to a spindle 5 carried in bearings 6 of end plates 19. A number of units may be ganged together as shown. Divisional Specification 717,522 which is referred to claims the coil structure made from stampings.