baber/WOPTO huggingface dataset:
Patent GB-465581-A (GB)
Title: Improvements in and relating to methods of electric welding
IPC: B23K11/11
Filed: 1936-12-23
Abstract: 465,581. Spot welding. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 23, 1936, No. 35311. Convention date, Dec. 31, 1935. [Class 83 (iv)] In resistance spot welding, particularly thick parts of ferrous metal, brass or aluminium, artificially cooled electrodes of small contact area are pressed into contact with the work and the parts are subjected to a periodically interrupted flow of welding current during each weld so as to maintain the electrodes below their deformation temperature and to cause the heat to build up between the parts. Direct or alternating current may be used and in the latter case the periodic interruptions are independent of the frequency of the source. The circuit may be periodically opened by a mechanically operated switch or an arc discharge device or the flow of current may be reduced periodically by periodically increasing the impedance of the circuit. In welding ferrous metals of “" or more in thickness the current may be applied until the surface parts of the work are heated to dull red and the current interrupted until the dull red disappears before again applying the current. After the first weld, the number of periods of current flow may be increased for succeeding welds. The welding pressure is maintained until the weld has cooled and acquired sufficient strength to withstand any tendency of the metal parts to spring apart. Thin or thick strips may be welded whose widths are slightly greater than the widths of the contact areas between the electrodes and strips without destroying the strips. The electrodes 12, 13 may be provided with detachable tips 16, 17 and are cooled by a medium supplied through conduits 20, 21.
Patent GB-399141-A (GB)
Title: Improvements in and relating to regulating arrangements for transformers
IPC: H01F29/04
Filed: 1931-12-21
Abstract: _ 399,141. Transformers. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitats-Ges.; 2, Friedrich Karl-Ufer, Berlin.) Dec. 21, 1931, No. 35331. Void [Abridged as open to inspection under Sect. 91 of the Acts, Dec. 24, 1931]. [Class 38 (ii).] Tap-changing in a transformer I is effected by means of a potential divider II connected between adjacent tappings and having tappings 4 .. 8 connected to the contacts of a switch III, the arm 10 of which is connected to the load circuit IV. Movement of arm 10 from contact 8a to contact 4a alters potential of line IV from the potential of tapping 1 to that of 2. The end 8 of the divider can then be transferred to tapping 3 by means of a switch 9. Movement of arm 10 to contact 8a will then adjust the potential of line IV to that of tapping 3. The arm 10 is preferably connected to an energy storage device so that change from one tapping to the next is effected by one movement. In a modification, Fig. 2, for a transformer with several tappings the even tappings are connected to the contacts of a switch Va and the odd tappings to the contacts of a switch Vb. Adjustment of the switch Va takes place when arm 10 is on contact 8a and similarly adjustment of the switch Vb when arm 10 is on contact 4a.
Patent GB-510773-A (GB)
Title: Improvements in cases or containers for spectacles or other articles having polishedsurfaces
IPC: A45C11/04
Filed: 1938-12-05
Abstract: 510,773. Spectacle &c. cases. HADEN, G. H. Dec. 5, 1938, No. 35335. [Class 133] [Also in Group XX] A case for articles having polished surfaces, such as spectacles, mirrors, and powder boxes, includes a wiper attached to a member adapted to make a limited endwise sliding movement to allow it to move out to its operative position. In the spectacle case shown, the wiper 17 is attached to a strip 19 which passes through a slot 16 at the bottom of a pocket 11. When the wiper is drawn into the pocket a press stud 21 may be engaged with the complementary part 22. The spectacles are housed in a compartment 10.
Patent GB-991845-A (GB)
Title: Test tube rack
IPC: B01L9/06
Filed: 1963-09-06
Abstract: 991,845. Test tube rack. LKB-PRODUKTER A.B. Sept. 6, 1963 [Sept. 12, 1962], No. 35378/63. Heading B1X. A test tube rack comprises two portions 1, 2, each adapted to receive a plurality of test tubes and a hinge 3 connecting said portions so as to allow them to make an angle with each other. As shown in the Figure, to which the numerals in brackets refer, the test tubes are contained in holes 8 of square cross-section, each of which contains a resilient wire of generally U-shape having a straight limb 6 and a bent limb 7 fitting in opposite corners thereof and enabling the rack to be inverted without the test tubes falling out. The entire rack may if desired be fabricated as an integral body from a plastics material, e.g. polyethylene: the resilient wires are then replaced by thin wings or films and the hinge is a thin bendable wall.
Patent GB-1180053-A (GB)
Title: Bearings.
Inventor: GADD JOHN HORACE
IPC: F16C33/20
Filed: 1966-08-08
Abstract: 1,180,053. Bearings. TRICO-FOLBERTH Ltd. 7 Aug., 1967 [8 Aug., 1966], No. 35424/66. Heading F2A. A bearing part of resilient material has a part-spherical outer surface and a cylindrical bore 16 containing ribs 17 extending around part of the circumference. The bearing part is of plastics. The part-spherical surface engages curved surfaces of a housing (not shown), and is divided by a groove 20 containing axial strengthening ribs 21. Ribs 17 in the bore snap into a groove of an oscillatable shaft (not shown) to locate the bearing part. Spaced ribs 17 may be replaced by a single, preferably annular, rib.
Patent GB-871464-A (GB)
Title: Plant for mixing retarded lime-sand-cement mortar
Inventor: JACKSON GEORGE ERNEST PETER
IPC: B28C9/00
Filed: 1958-05-30
Abstract: 871,464. Mixing in proportions. LIME-SAND MORTAR Ltd. May 14, 1959 [May 30, 1958], No. 35486/60. Divided out of 871,463. Class 86 [Also in Group XVIII] A mortar producing plant comprises a hopper 11 feeding cement on to an endless belt weighing conveyer 12. and a vibrating feeder 13 for shaking a powdered retarder, e.g. a metallic oxide, from a hopper 14 on to the surface of the cement on the conveyer 12, the vibrating feeder 13 having means to control its speed of vibration, and thereby the percentage by weight of retarder added to the cement. As shown, a screw-type mixer 1 is fed with sand from a hopper 2 via an apron feeder 3 which is driven from the mixer shaft 1a, and lime is delivered to the mixer by a pump 5 which is driven by an electric motor 20 and has a tachometer 24 to register the revolutions of the pump rotor 23. The weighing conveyer 12 and vibrating feeder 13 are driven by an electric motor 19 supplied through a voltage controller whereby the speed of vibration of the feeder 13 is controlled. An adjustable outlet door 7 controls the rate of feed from the sand hopper 2. Shares 15 and a comb 16 disposed above the weighing conveyer downstream of the feeder 13 turn over and rake the cement and retarder before delivery to the mixer 1.
Patent GB-1200756-A (GB)
Title: Silicon-containing terpolymers
IPC: C08F212/08
Filed: 1967-08-02
Abstract: 1,200,756. Glass laminates. RANK XEROX Ltd. 2 Aug., 1967 [10 Aug., 1966], No. 35514/67. Heading B5N. [Also in Divisions B2 and C3] Glass slides are bonded by means of a terpolymer of styrene, isobornyl acrylate and methacryloxypropyltrimethoxy silane (Example X), or a terpolymer of styrene, nbutyl methacrylate and vinyl triethoxy silane (Example V).
Patent GB-381408-A (GB)
Title: Resilient upholstering for seating and reclining surfaces
IPC: A47C7/32
Filed: 1931-12-23
Abstract: 381,408. Spring upholstery. KNOLL, W. [Firm of], 71, Forststrasse, Stuttgart, Germany. Dec. 23, 1931, No. 35550. Convention date, Dec. 27, 1930. [Class 52 (iv).] Resilient cables or cords c are strung in parallel relation across a seat &c. frame b and each cord is then secured to one adjacent cord only by means of clips d or other discontinuous connecting means.
Patent GB-925614-A (GB)
Title: Improvements in or relating to shooting installations
IPC: F41J5/056
Filed: 1959-10-20
Abstract: 925,614. Targets. CONRAD ZSCHOKKE, ZWEIGNIEDERLASSUNG DOTTINGEN, A.G. Oct. 20, 1959 [Oct. 29, 1958; Dec. 31, 1958; July 21, 1959], No. 35565/59. Class 20 (1). A device for indicating hits on a target 1 is operated by a pulse switch 3 mounted on the stake 2 supporting the target 1 and comprises a bolt 15 with a weighted head 17 and carrying contacts 16 which are normally spaced from fixed contacts 11 by a spring 18. When the target is hit from the direction S the acceleration of the target relative to the head 17 closes the contacts 16, 11. Alternatively, a weighted diaphragm is caused to approach a solenoid inducing a current. The switch 3 is connected to an indicating device 5 mounted behind a sheet 36 of armour plate supported by a stake 37. The device operates a lamp 4, the light from which is reflected to the observer by a mirror 38 (which may alternatively be positioned at the top of the stake 2. In one method of operation, momentary closure of the switch 3 actuates a moving coil bearing contacts which light the lamp 4. The circuit is so arranged that the coil remains activated until the circuit is broken by a remotely positioned switch or by a time relay. In another embodiment (Fig. 10) the target 1 is pivoted at 43 and supported by an hydraulic piston 46 and cylinder 47 which may be operated by a remote switch or by the switch on the target.
Patent GB-1298498-A (GB)
Title: Base for an electron tube having retention provisions therein
Inventor: WOOD DOYLE ALFRED
IPC: H01J5/56
Filed: 1970-07-22
Abstract: 1298498 Valve caps GTE SYLVANIA Inc 22 July 1970 [22 July 1969] 35588/70 Heading H2E A protective insulating base 11 for an electron tube 13 has a hollow spigot portion 29 surrounding the pinch seal 23 of the tube and a rim portion 14 which abuts end surface 21 of the tube and has an array of holes through which pass the pin leads 19 of the tube, at least two of the holes, as shown the diametrically opposite holes 17, having a first cross-sectional dimension greater than the diameter of a pin and another cross-sectional dimension less than the diameter of a pin, and these holes further having an axis of symmetry. There are thus provided regions of pressure contact between pin and base and regions of non-contact, and there is not a sharp transition from one to the other (Fig. 3, not shown). This allows distortion of the holes without bending the pins or rupturing the, e.g. nylon base, permits radial misalignment of the pins and preheating to soften the base is unnecessary. The length of the hole may equal the diameter of round holes 15. The holes may alternatively be triangular in cross-section (Fig. 4, not shown) with the height of the triangle greater than the pin diameter but not to such an extent that there are no regions of pressure contact. When there are more than two holes of differing cross-sectional dimensions, these are symmetrically disposed. Preferably the axes of symmetry are radially disposed with respect to the base axis. A rib 31 may be provided on the base for correct alignment with a socket.
Patent GB-866350-A (GB)
Title: Improvements in or relating to apparatus for melting tar, bitumen or the like
Inventor: POWNALL JOHN EMMERSON
IPC: B67D7/80
Filed: 1958-11-06
Abstract: 866,350. Tar and bitumen heating apparatus. PHOENIX ENGINEERING CO. Ltd. Sept. 10, 1959 [Nov. 6, 1958], No. 35710/58. Class 107 In apparatus for melting tar, bitumen or like material comprising a tank 6 heated by a heater unit 1, 2, new material is introduced into the heating tank from drums which are immersed open end downwards in the heated material. Each drum, with one end removed, is manoeuvred by one of the jib cranes 20 equipped with a pair of drum tongs 24 which are provided with swivelling jaws 27 so that the drum may be rotated to the open end downwards position and held in that position by safety chains before it is introduced into the tank via one of the manholes 17 formed in the top of the tank. The drum is lowered into the tank until the drum tong cross-bar 26 engages in brackets 18. In this position the drum is completely immersed in the heated material and the level of the material is raised so that it can be withdrawn via the suction valve 9. Specification 768,552 is referred to.
Patent GB-1478495-A (GB)
Title: Microwave oven
Inventor: IMBERG B U
IPC: H01P5/08
Filed: 1974-08-14
Abstract: 1478495 Microwave oven PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 Aug 1974 [17 Aug 1973] 35771/74 Heading H5H A magnetron 17 is coupled to a microwave oven by means of a waveguide 20 of increasing width a short-circuited at its wider end 23, where it is coupled to the oven by a number of coupling apertures, e.g. apertures 24, 25. As shown, the waveguide overlies the upper wall 13 of the oven. At its narrow end the waveguide 20 is coupled to a standard waveguide feeder 19 co-planar with the waveguide 20 or (as shown) at right-angles thereto. The apertures 24, 25 may be asymmetrically arranged with respect to the axis of the waveguide. Each aperture may contain a mode stirrer with four oblique blades. One of these may be stationary and the other may rotate.
Patent GB-932723-A (GB)
Title: Feeding and depth control means for forming a conveyor carried travelling bed of granular material
Inventor: WESSON JOSEPH PERCY
IPC: B65G47/00
Filed: 1960-10-19
Abstract: 932,723. Endless conveyers. DOMINION MALTING (ONTARIO) Ltd. Oct. 17, 1961 [Oct. 19, 1960], No. 35844/60. Class 78 (1). Apparatus for spreading grain uniformly on a moving conveyer C comprises a feed shoot 13 leading to a chamber B across which the grain is spread by a screw conveyer 14 and an adjustable gate 12 for presetting the required depth.
Patent GB-1235329-A (GB)
Title: Die plates
IPC: B21D28/34
Filed: 1968-07-26
Abstract: 1,235,329. Die plates; die assembly. DAYTON PROGRESS CORP. 26 July, 1968 [11 Aug., 1967], No. 35853/68. Headings B3A and B3W. A die-plate, a plurality of which are used to form a die assembly, Fig. 9, comprises a plate, Fig. 3, having two rows of holes 24, 26 adjacent opposite edges of the plate and each hole being counterbored, the counter-bores in adjacent holes of a row opening from opposite sides of the plate and counter-bores on one side of the plate in one row being staggered with respect to those in the other row. In the die assembly, Fig. 9, a die-plate 19 is secured to a die shoe 10 and carries a punch and a stripper die-plate 21. A die-plate 21 is secured to a second die shoe 11 and carries a die. The die plates are aligned by means of a pin 28 in a hole 23 and a second pin in a hole 23a in the die-plates. The second pin is preferably of diamond-shaped cross-section and the hole 23a may be opened to the edge of the die-plate or elongated, Figs. 10, 11 (not shown).
Patent GB-1362273-A (GB)
Title: Electrical plug and socket connector
IPC: H01R13/00
Filed: 1971-07-30
Abstract: 1362273 Two-part couplings W DINSE 30 July 1971 [20 Aug 1970] 35883/71 Heading H2E In a plug and socket connector the plug is inserted axially into the socket to establish mating of the respective contacts, and when the plug is subsequently rotated relative to the socket to effect coupling the mated contacts move in unison with one another about the axis of rotation. The connector is shown as part of a supply line to an arc welding gun and the plug comprises an insulating housing with a shroud portion 20 and a body 21 which carries a hollow conductor 17 clamped between a conical screw 18 and a nut 19, a welding-gas or air line 14 and two electric control lines 15, a guide tube 13 which carries the welding wire extends through the hollow conductor 17. The tube 13 and lines 14, 15 terminate in respective connecting ends 13a, 14a, 15a. The socket comprises insulating housing sleeves 3, 4, 6, a body 8 and a resin insert 12 which carries further lengths of the tube 13 and lines 14, 15 having connecting ends 13b, 14b, 15b complementary to the ends 13a, 14a, 15a. The insert 12 is spring 33-loaded for linear and rotational movement within the body 8, rotational movement being prevented when in the linearly undisplaced position by a detent pin 31 in the body engaging a groove 31 in the insert. The socket is mounted on a fixing plate 5 between the sleeves 4, 6 while a supply line 10 for the welding current is connected to the line 17 by clamping between the body 8 and a nut 11. To couple, the plug is inserted linearly into the socket connecting the ends 13a, 14a, 15a to ends 13b, 14b, 15b until a retaining pin 22 in the plug enters a helical groove in the socket body 8 and is then rotated so that the pin 22 travels along the groove drawing the plug and socket further together and with the connected ends 13a, 13b &c. rotating the insert 12.
Patent GB-508315-A (GB)
Title: Improvements in or relating to model building sets
IPC: A63H33/04
Filed: 1937-12-29
Abstract: 508,315. Models ; folding toys. SCHWARZ, B. Dec. 29, 1937, No. 35968. Convention date, Aug. 26. [Classes 132 (iii) and 146 (ii)] A set of elements for constructing model buildings consists of: (a) cardboard printed or coated to produce a rough-cast effect and scored to represent rows of brickwork, (b) plain cardboard similarly scored to serve as supports or to represent pillars ; (c) paper, in sheet or roll form, printed to represent brickwork; (d) cardboard scored and printed or faced in imitation of wood ; (e) gummed sheets or rolls of paper or cardboard printed or embossed to represent roof tiles &c. ; and (f) paper or the like printed to represent doors, windows, &c.
Patent GB-841240-A (GB)
Title: Improved method of securing flat constructional elements together
IPC: E04H7/28
Filed: 1957-02-11
Abstract: 841,240. Building panels. BENTON & CO. Ltd., E., BENTON, E. A., and HALES, S.R.C. Sept. 18, 1957 [Feb. 11, 1957], No. 36169/59. Divided out of 842,184. Class 87(1) A multi-panel-structure, such as a coal bunker or silo, has walls made-up from flat constructionalelements 1, 2, with edges 3, 5, in abutment. Each element has a plain-edge 5 with holes 7 parallel to and spaced from the edge, and an opposed-edge 3 rabbeted to provide an overlapping-strip 4 with holes 6 therethrough. Each joint between two panels is secured by L-shaped-bolts 8 fitted with nuts 9.
Patent GB-1431718-A (GB)
Title: Device for the pneumatic feeding of a plurality of cards
IPC: D01G23/08
Filed: 1973-07-30
Abstract: 1431718 Pneumatic feed for cards TRUTZSCHLER & CO 30 July 1973 [26 Aug 1972] 36172/73 Heading DIN A pneumatic feeding device for a plurality of cards comprises a plurality of feed lines Ll, L2 which can be selectively connected to the deposit chutes S of the individual cards. A hinged valve V directs the air flow from either line L1, L2. In another embodiment three pneumatic lines serve the plurality of cards.
Patent GB-813510-A (GB)
Title: Improvements in and relating to the compression of band-width of television signals
Inventor: LORD ARTHUR VALENTINE
IPC: H04N7/12
Filed: 1955-12-16
Abstract: 813,510. Television. BRITISH BROADCASTING CORPORATION. Dec. 6, 1956 [Dec. 16, 1955], No. 36216/55. Class 40 (3). [Also in Group XXXIX] In a quantizing arrangement for a television signal the number of amplitude levels available in the quantizer is varied inversely as the number of significant amplitude changes in the television signal in a given time interval. This allows a better use of the bandwidth available for transmission when the television signal contains only components of relatively low frequency. As shown in Fig. 1, the signals to be quantized are supplied from terminal 10, to a first quantizer 15 which has the maximum number of levels which are ever required and the output signals supplied, during alternate line periods, via switch 16, to counters 17, 18, the outputs from which, consisting of a potential of amplitude proportional to the number of amplitude changes in one line of the signal from 15, are supplied during the other alternate line periods, via switch 19, to a second quantizer 20 to control the level at which quanta are produced in inverse ratio to the amplitude of the applied control signal, the signals from terminal 10 being also supplied to quantizer 20, either via a delay device introducing a delay of one line period or, as shown, from alternate ones of storage devices 12, 13 during the other alternate line periods. The output from quantizer 20 is utilized in similar manner to the output of the quantizer 13 of Specification 795,193 to produce trains of pulses for transmission by supplying such output firstly, to a generator 21 which supplies pulses of amplitude proportional to the amplitude of the quantized signal via switches 22 and 25 and storage devices 23, 24 operative respectively during alternate line periods to an output terminal 26 and, secondly, to a generator 31, which supplies pulses indicative of the position of each quantum in each line, via switches 32 and 35 and storage devices 33, 34 operative respectively during alternate line periods, to an output terminal 36 .the generator 31 also controlling the " writing " and " reading " time bases 28, 30 respectively of the storage devices. The Specification includes a description of the quantizer 20 with reference to Fig. 4 (not shown), which is identical with that described in Specification 781,325 (see Group XXXIX) with the exception that the control voltage applied to the cathodes of the double diode 24 from the manually adjustable potentiometer 26 in Fig. 2 of the latter application is, in the present invention, supplied from switch 19. Suitable arrangements for the counter circuits 17, 18 and for the generators 21, 31 are described with reference to Figs. 2 and 3 (not shown) and Fig. 5 (not shown) respectively.
Patent GB-757414-A (GB)
Title: Improvements in or relating to equitation equipment
IPC: A61F5/01
Filed: 1953-12-30
Abstract: 757,414. Horse-riding equipment. FURBER, H. March 30, 1955 [Dec. 30, 1953], No. 36222/53. Class 141. Equipment for assisting a rider to maintain a correct leg position when mounted on a horse, comprises a stiff but resilient back-piece 10, Figs. 1, 2, to be worn behind the knee, a flexible front-piece 11, and adjustable leg-encircling straps 12, 13, 14 which pass through pairs of slots in the pieces 10, 11 and are fastened by means of buckles. The pieces 10, 11 may be made of leather, the back-piece 10 being made of thicker leather than the front-piece 11.
Patent GB-761785-A (GB)
Title: Improvements relating to electrical measuring apparatus
Inventor: MYNALL DENNIS JAMES
IPC: G06G7/161
Filed: 1953-12-31
Abstract: 761,785. Correspondence signalling. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 14, 1954 [Dec. 31, 1953], No. 36356/53. Class 40 (1). An impulse generator comprises an electromagnetic or electronic switch which co-operates with a pair of voltage sources E, E1, and an integrating amplifier A so as to produce impulses of which the mark/mark+space ratio is proportional to the ratio of the voltages from the respective sources. When V2b of the double diode V2 conducts, the output of A in due course triggers a bi-stable circuit V1 to make V1a conducting and Vlb non-conducting. V2a of the double diode then conducts and V2b effectively disconnects positive source E. Source E1 (of opposite polarity) then takes charge and conditions are reversed, the amplifier is designed so that the mean current in the lead from'the point O is substantially zero and the gain is sufficient to ensure that the input terminal remains close to earth potential throughout the cycle. In Fig. 1 (not shown) the double diode is replaced by an anode relay of V1a. Additional contacts of the relay may be included in circuit with a further voltage source and a meter.
Patent GB-1319296-A (GB)
Title: Clip for writing instrument and method of attaching same
IPC: B43K25/02
Filed: 1970-07-28
Abstract: 1319296 Clips HALLMARK CARDS Inc 28 July 1970 [7 Oct 1969] 36446/70 Heading E2B A pen-clip 14 has a key 26 which engages a resilient grommet 16 of rubber or plastics to secure it in the pen cap. The clip may be stamped from sheet metal.