baber/WOPTO huggingface dataset:
Patent GB-486820-A (GB)
Title: Improvements in pit props
IPC: E21D15/28
Filed: 1937-06-17
Abstract: 486,820. Pit-props. HINSELMANN, W., and TIEFENTHAL, C. June 17, 1937, Nos. 16907 and 16908. Convention dates, June 17. 1936 and Nov. 13, 1936. [Class 20 (ii)] A pit-prop of the type in which an upper tapered member is slidably disposed in a lower hollow member, with an upper wedge-shaped pocket to receive a wedge pressing against the upper member, has a supplementary wedge device disposed on the opposite side to the former and at a different level. The lower member a has a wedge-pocket c disposed at its upper end to receive a main wedge n<1> which presses on the tapered side of the upper sliding member b. The pocket is provided with a wedge-shaped extension n, tapering upwardly, opposite to the main wedge n<1> and adapted to coact with a wedge-portion m<1> of an encircling member c<1> which carries the main wedge n<1>. Further coacting wedge-portions m<11>, n<11> may be provided on the main wedge carrier and pocket respectively. The several wedge surfaces are of the same angle which slightly exceeds the angle of rest. A spring flap u with adjusting screw o bearing on the counterwedged surface of the main wedge adjusts the resistance of the prop to load. A rack r is provided in the side of the upper member to facilitate its setting, and a flange q coacting with a stop p prevents detachment of the prop members. In a modification shown in Figs. 5 and 6, the main and auxiliary wedgo members n<1>, m<1>, respectively, are pivoted to the encircling member c<1>, and a resilient saddle member u with an adjusting screw o is pivoted to the encircling member and adjusts the pressure between the wedge surfaces. A removable rack r is positioned by projections r<11>, r<1> on the upper member, which may be adjusted with respect to the lower member by using a lever s on a fulcrum t<11>. The Specification as open to inspection under Sect. 91 comprises also a prop as described above, and provided with a tubular socket containing a resilient member, such as a block of wood, on which the lower end of the prop rests, or with a tubular end piece containing a resilient member, which rests on the ground ; a group of four props braced by means of cross-bars in the form of a square is also described. This subject-matter does not appear in the Specification as accepted.
Patent GB-1101306-A (GB)
Title: Nesting and stacking tray
IPC: B65D21/04
Filed: 1966-04-18
Abstract: 1,101,306. Nestable and stackable container. A. W. LEVENHAGEN OF LINESVILLE. 18 April, 1966 [18 Aug., 1965], No. 16919/66. Heading B8P. A stackable and nestable tray has external projecting legs 19, 20 extending from top to bottom of one end wall 12 and forming recesses on the interior of the wall, the bottoms of which legs are received on seats formed at the top of the opposite end wall 13 of a similar tray when stacked, and which legs engage in the said recesses of a similar tray when the top tray is rotated through 180 degrees. A leg 17, 18 and seat 23, 24 preferably are formed on each side wall and co-operate in a similar fashion.
Patent GB-899311-A (GB)
Title: Improvements in or relating to sprags for one-way clutches
IPC: B23P13/04
Filed: 1959-05-19
Abstract: 899,311. Ratchet clutches. FORMSPRAG CO. May 19, 1959 [June 2, 1958], No. 16988/59. Class 80 (2). A sprag for use in a ratchet clutch comprises camming faces A, B adapted to engage the races of the clutch and trunnions F which may be engaged with a cage (not shown). The sprag is made from an extruded bar having the crosssection shown in Fig. 1. A number of the sprags may be formed by cutting the bar along lines G ... G, Fig. 2, and removing central portions E<SP>1</SP>. Alternatively, to form sprags having identical profiles and trunnions, sections may be cut out from the end of each severed portion of the bar, Figs. 3, 4 (not shown). The trunnions are cut away transversely as at F<SP>3</SP> to form surfaces for engagement by energizing springs.
Patent GB-276114-A (GB)
Title: A combined carrying handle and shoulder strap
IPC: A45F3/02
Filed: 1926-07-07
Abstract: 276,114. NiÚll, M. July 7, 1926. Equipements.-Cases for photographic cameras, binoculars, or other light portable articles are provided with carrying means adapted to serve both as a hand-grip and, when opened out, as a shoulder strap or sling. The device comprises a pair of parallel members A, Fig. 1, connected at one end by a slotted arm B and at the other by a pin N. Pivotally mounted between the members is a support D, Fig. 3, on which, a tape, thin leather strap, or other means E to serve as a carrying sling is wound. One end of the tape, &c. is connected to the support and the free end passes through the slot F and is secured to a metal strip G slidably mounted on a stud secured to the camera or other case J. The free end of the part G is formed into a hook K adapted to engage in the slot F, where it is retained by a projection L carried by a slide M. The other end of the device is pivotally connected to the case by a piece O. A slide (not shown) having an open-ended slot adapted' to engage the support may be mounted on one of the side members to retain the support in alignment with the members A in the hand-carrying disposition of the parts.
Patent GB-1003654-A (GB)
Title: Semiconductor devices
Inventor: RAYMOND FREDERICK JOHN
IPC: H01L21/00
Filed: 1964-04-24
Abstract: 1,003,654. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. April 24, 1964, No. 17026/64. Heading H1K. A PNP or NPN semi-conductor device is formed in a body of the shape shown in Fig. 1, the central N or P region 4 being of higher resistivity than the adjacent regions 3 and 6 and the PN junctions 9 and 10 breaking out into the surface of the body only at the top of the upstanding peripheral wall portion 11, the latter being so shaped as to provide acute angles a and # between the junctions and the surfaces at which they break out. This construction is designed to ensure that any junction breakdown occurs in the body and not on the surface of the device and is particularly applicable to semi-conductor controlled rectifiers of the avalanche type. The particular devices shown has a PNPN structure in which the anode and cathode regions 3 and 6 are P type and the trigger region 8 and intermediate high resistivity region 4 are N type. The device is formed by first removing-by chemical etching, air abrasion or ultrasonic shaping- a central zone from one face of a disc of high resistivity N-type silicon or germanium, oxidizing the surface 14, Fig. 6, and diffusing gallium through the oxide to form the P regions 3 and 6. By successive selective removal and replacement of oxide, using the remaining oxide at each stage as a mask, the N region 8 (phosphorus doped), P+ region 2 (boron-doped) and gold on nickel electrodes 1, 5, 7 are successively deposited. Finally the groove 12 is cut by etching, air abrasion or diamond cutting and the device cleaned, varnished, mounted between molybdenum discs and encapsulated.
Patent GB-1438535-A (GB)
Title: Card indexing tray
IPC: B42F17/08
Filed: 1973-04-10
Abstract: 1438535 Filing trays M MYERS & SON Ltd 29 March 1974 [10 April 1973] 17031/73 Heading B6E  A filing tray is subdivided by vertical inclined walls 15, which are integrally moulded with the tray, into four rectangular compartments, one shorter side of one compartment and one longer side of an adjacent compartment, or vice versa extending along one of the four sides of the tray.
Patent GB-688886-A (GB)
Title: Improved key-operable electric switch
IPC: H01H27/06
Filed: 1951-07-18
Abstract: 688,886. Key-operated switches; retractive switches. GENERAL MOTORS CORPORATION. July 18, 1951 [Aug. 4, 1950], No. 17033/51. Class 38 (v) A switch for controlling the ignition and starter circuits of a vehicle has a rotary lock cylinder which rotates a contact-carrier 40 in the housing 20 having a central post 81 surrounded by a spring 85, the ends of which normally abut against the ends of a skirt 82 also formed on the housing. The carrier 40 has a skirt 55 arranged between the post and the housing skirt so that, on rotation of the carrier post from one "on" position to a second "on" position, the end 60 of skirt 55 engages the end 87 of the spring which is thereby strained to return the carrier to the first "on" position on release of the key (not shown). The fixed contacts B, A, S, I are mounted in a closureplate 72 flush with the surface thereof and co-operate with contacts 66 ... 68 on a ring 65 having lugs 70 engaging recesses 51 in the carrier 40, the contacts being urged into engagement by springs 69. The carrier is located in the first "on" position wherein the ring 65 occupies position 65b, (Fig. 5), to complete the ignition circuit, by humps 36 on the casing which engage grooves 44 on the carrier 40. Further clockwise station of the carrier (Fig. 5) moves the ring 65 to position 65c to complete the ignition and starting circuits against the action of spring 85. The carrier is moved "off" from position 65b by manual rotation of the key and is located in this position by the engagement of humps 36 with further grooves 44 on the carrier 40.
Patent GB-1269894-A (GB)
Title: Method of making spiral-wound gaskets
IPC: F16J15/12
Filed: 1970-04-10
Abstract: 1,269,894. Making gaskets; profile section forming; coiling. JOHNS-MANVILLE CORP. 10 April, 1970 [10 April, 1969; 7 April, 1970], No. 17034/70. Headings B3A and B3E. [Also in Division F2] In a method of making a spirally wound annular gasket a metal strip 12 is profiled into a V-shaped cross-section by rolls 42, 44, passed through a guide 26; bent to form a ring of required diameter by means of rolls 20, 22 and movable pins 36, 38, 40, the end of the strip being spot welded to itself by welding head 34, and then spirally wound around the thus formed ring together with a packing 16 which is formed into a V-shaped cross-section by rolls 46, 48 before passing through guide 26 to rolls 20, 22. When the required diameter is attained a final length of metal strip is wound on to the ring and welded thereto to form the annular gasket 10. The metal may be stainless steel, titanium, nickel or nickel alloy and the packing may be asbestos, cotton, wool, polyfluoromethylene polymer or copolymer, regenerated cellulose, acetate rayon or glass fibre. The winding is preferably carried out in a horizontal plane and at least one of the profiling rollers of each pair 42 and 44, 46 and 48 are driven at a synchronized speed with roller 20. Roller 22 is mounted on a pneumatic or hydraulic cylinder 24 and its position can be adjusted as required. The rolls have rubber faced peripheries to avoid damage to the strips.
Patent GB-111848-A (GB)
Title: Electric Motor Meters.
IPC: G01R11/30
Filed: 1917-11-19
Abstract: 111,848. Landis & Gyr Akt.-Ges. Dec. 2, 1916, [Convention date]. Commutator motor meters.-An armature carrying the whole or a fraction of the main current and rotating in the field of a permanent magnet is supplied with current for compensating for friction from an auxiliary pressure circuit which also includes means for varying the speed of the meter in accordance with the pressure so as to register watt-hours. As shown, a coil a connected in series with resistances e, f in the pressure circuit, is mounted on a shaft b and moves about a polar extension of the magnet displacing the brushes c, d along a commutator with inclined slots. Or the slots may be straight and the brushes rotated about the axis of the commutator. Specification 100,109 is referred to.
Patent GB-425944-A (GB)
Title: Improvements in or relating to sliding windows
IPC: E06B3/50
Filed: 1934-06-08
Abstract: 425,944. Window regulators ; double windows. GENBERG, O. A., 42, Valhallavagen, Lidingo, Sweden. June 8, 1934, No. 17057. [Class 20 (iii)] The lower section of a double window is movable on cranks 4 thereon having pivots 8 in guide grooves 9 of the frame. The cranks are actuated by a pivoted hand-lever 11 and have extensions connected by a screwed adjusting link 7, Fig. 5. Studs 11<a> on the lever 11 project into triangular brackets 13 fixed to the sash and when the lever - handle is pivoted downwards engage the brackets to hold the cranks 4. A fastening for the closed position may be provided consisting of an adjustable bracket 16 on the frame adapted to engage the lever 11. The movable section of the window is balanced by weights so as to rest in any positions in the grooves when removed from the plane of the fixed section 2 as described above.
Patent GB-384921-A (GB)
Title: Improvements in flexible or indestructible wings or mudguards for motor vehicles, cycles and the like
IPC: B62D25/16
Filed: 1932-06-16
Abstract: 384,921. Mudguards. RAY, A. W., 68, Fairleigh Drive, Leigh-on-Sea. June 16, 1932, No. 17107. [Class 136 (i).] A moulded flexible and elastic mudguard for motor vehicles, cycles, &c. is made of rubber or like pliable material, in which is disposed a reinforcement consisting of a sheet of tempered steel cut to digital, herring- bone, or like form, or to a latticework, or to a combination of such forms. The reinforcement may be interposed between layers of canvas &c., and the rubber and the reinforcement may vary in flexibility at different parts of the mudguard. In the form shown in the Figure, the reinforcement comprises a central rib a with digits d, marginal ribs b, and end pieces c, these parts being formed with apertures e. Punchedout tongues f are adapted to pierce canvas sheets g arranged above and below the reinforcement, and are then bent over to secure it in position, the whole being enclosed in rubber h. In the case of a lattice reinforcement, the lattice strips are pivoted together, and may have pivotal and slotted connections with side strips. The reinforcement may have stays or marginal flanges for connection to the chassis &c., and may decrease in thickness from the inner to the outer edge. The rubber may vary in composition from hard on the inner edge to soft on the outer edge, and may have a veneer of white rubber, guttapercha, &c. coated with luminous paint or impregnated with a luminous or phosphorescent substance.
Patent GB-996866-A (GB)
Title: Improvements in and relating to vehicle heating devices
IPC: B60H1/03
Filed: 1964-04-27
Abstract: 996,866. Heating for vehicles. WEBASTOWERK G.m.b.H. April 27, 1964 [July 29, 1963], No. 17314/64. Heading F4S. A vehicle heating device comprises two heat exchangers 1, 2 in which air is heated by the engine exhaust gases which enter said heat exchangers at 3, 4 and leave at 5, 6, and a supplementary heat exchanger 9 incorporating a liquid fuel burner 10, which supplies hot combustion gases to a conbustion space 11 havings fins 18 and an outlet 19, and ducts 15, 14, separated from each other by ribs 16, 17, through which is guided hot air flowing in through 7, 8 from the heat exchangers 1, 2 and passing out through 13, 12 to the part of the vehicle to be heated. The axes of all the connections of the ducts 7, 8, 12, 13 to the supplementary heat exchanger 9 lie in one plane in which also lies the axis of the combustion space 11. The outer surface of the heat exchanger 9 is formed by two similarly shaped plates 20, 21.
Patent GB-731770-A (GB)
Title: Improvements in electric heating devices
Inventor: MOULE GORDON HENRY
IPC: H05B3/68
Filed: 1953-06-23
Abstract: 731,770. Electric hot-plates and grills. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. May 10, 1954 [June 23, 1953], No. 17401/53. Class 39 (3). An electric grill boiler formed as a unitary structure has two heating elements, an inner one of circular, flat grid-like shape forming a hot-plate 2, and an outer element 7 of flat grid'-like shape, but of frame configuration to extend around the circular element but disposed in a lower plane than the circular element to serve as a grill. The elements are of tubular sheathed type or may be exposed resistance wires supported on the underside of platelike parts. The inner elements 2 may be a tubular sheath bent as in Fig. 1 and the outer element 7 a tubular sheath bent as in Fig. 2, the ends of the elements being bent to enter a terminal box 5. The elements are mounted on a common supporting frame 10, and each element has an individual switch or current control means. A reflector plate 15 is placed under the elements for boiling or on the elements for grilling. The device may be mounted in a rectangular opening in the hob of an electric cooker, with the upper circular element 2 level with the hob and surrounded by a marginal frame level with the hob and covering the outer part of the lower rectangular grilling element 7 ; or the hob has a circular opening receiving the circular element 2, below which is the lower element 7 with its outer parts covered by the hob.
Patent GB-439691-A (GB)
Title: Improvements in and relating to closets, and particularly chemical closets
IPC: A47K11/03
Filed: 1934-06-12
Abstract: 439,691. Sanitary closets. JACKSON, E. L., 101, Gray's Inn Road, London, and CHRISTOPHER, S. A., 52, Meadway, High Barnet, Hertfordshire. June 12, 1934, No. 17428. [Class 26] In a closet in which a shutter is provided between a pan and a sewage receiver, the shutter is associated with the cover connected with the closet-seat through an operative connection adapted to open and close the shutter when the seat is raised and lowered respectively. The shutter 1, Figs. 1 and 2, which works about a hinge, is connected by a link 8 to a rod 9 sliding in a tubular guide 10 and having a nut 11 upon a threaded part to permit adjustment of the distance between the shutter and a member 12 carried by an arm 13 by which the cover 14 is connected to the hinge-pin 15. In the form shown in Fig. 1, the shutter is hinged at 2 to the pan 3 and the receiver 26 is located in a casing 23 on the upper edge of which rests the flange 24 of the pan which carries a shield 25 covering the mouth of the receiver. In the form shown in Fig. 2, the pan is of earthenware, has a ventilationconnection 35 and rests upon an extension 6 of a receiver 7 which is equipped with valvemeans for the periodical discharge of its contents. The shutter is provided with arms 4 connected to a hinge-pin 5 carried by the extension.
Patent GB-1272622-A (GB)
Title: Improvements relating to pickling metals
Inventor: MULCAHY EDWARD WILLIAM
IPC: C23G3/00
Filed: 1969-04-03
Abstract: 1,272,622. Pickling. E. W. MULCAHY. Feb.6, 1970 [April 3, 1969], No. 17441/69. Heading C7E. Metal articles are loaded into at least one perforated container, the (or each) container is conveyed through a pickling station by means of a continuously driven conveyer, pickling liquid is continuously discharged into the (or each) container, the liquid draining therefrom is collected in a tank, and the pickling liquid is recirculated into said containers by a plurality of air-lift pumps connected to said tank. Liquid may be heated in said tank and discharged into said container(s) along their path of travel, this discharge rate being such that the liquid level in said container(s) maintains said articles fully immersed; the containers may be detachably connected to the conveyer.
Patent GB-766368-A (GB)
Title: Improvements in or relating to brazing alloys
Inventor: LLEWELYN GEIRIONYDD
IPC: B23K35/28
Filed: 1954-06-14
Abstract: An aluminium - germanium - copper brazing alloy having a flowing temperature of 430-530 DEG C. has a composition within the following range Al 40-65 per cent, Ge 5-53 per cent, Cu 1-30 per cent.
Patent GB-425201-A (GB)
Title: An improvement in the production of leather
IPC: C14C9/00
Filed: 1934-06-13
Abstract: 425,201. Making leather. GEIGY AKT.-GES., J. R., 215, Schwarzwaldallee, Basle, Switzerland. June 13, 1934, No. 17496. Convention date, June 14, 1933. [Class 76] Tanned hides are treated before dressing with a suspension of kaolin in a solution of glue ; the treatment is stated to improve the quality and fullness of the leather. After treatment the leather may be oiled as usual. The treatment may be conducted during dyeing.
Patent GB-741051-A (GB)
Title: Improvements in or relating to printing
IPC: B41M7/02
Filed: 1952-07-11
Abstract: 741,051. Printing processes. GAUNT, T. N., and WATSON, N. V. July 16, 1953 [July 11, 1952], No. 17537/52. Class 100 (2). In the production of relief prints by applying powdered resin to a freshly printed surface, the powder retained by the sticky ink is agglomerated and bonded to the ink by treatment with a setting medium, whereby heating to fuse the powder and which might damage the paper &c. base is unnecessary. The setting medium may contain ethyl cellulose, nitro cellulose, vinyl resin, alkyd resin, or a modified alkyd resin, in xylene, white spirit, butyl acetate, carbon tetrachloride or methyl ethyl ketone, with any necessary plasticizer; an example comprises an 87: 13 vinyl chloride vinyl acetate copolymer 15 parts by weight, dinonyl phthalate 3 parts, methyl ethyl ketone 110 parts. An ink containing a urea-modified alkyd resin, " Monastral " (Registered Trade Mark) green, primrose chrome and cobalt linoleate may be printed on to a banknote paper, finely-divided calcium resinate (or coumarone indene resin, shellac, alkyd resin, maleic resin, vinyl resin, ethyl  cellulose or cellulose acetate) then being applied on a bronzing machine and burnished into the ink by reciprocating bands which also remove excess powder from the unprinted areas; excess may also be removed by blowing or suction; the setting medium is then applied by rollers, e.g. in a varnishing machine, and the sheets are dried on a conveyer by infra-red radiation.
Patent GB-744239-A (GB)
Title: An improved aerial
Inventor: WILLOUGHBY ERIC OSBORNE
IPC: H01Q13/04
Filed: 1952-07-11
Abstract: 744,239. High-frequency impedance networks. DEPARTMENT OF AIR, SECRETARY OF. July 11, 1952 [July 13, 1951], No. 17602/52. Class 40 (8). [Also in Group XL (c)] An impedance network for preventing coupling between two aerials 20, 21 comprises concentric stubs 24, 25 tuned to a frequency either above or below the operating band of the aerial system, i.e. they are anti-resonant at a frequency outside the operating band, and concentric tube stubs 26, 27 which are also anti-resonant to a frequency outside the operating band. Stubs 24, 25 provide a high series impedance between the aerials along the mast 4 whilst the stubs 26, 27 break up the outer tube 28 into two parts separated by the two high impedance stubs 26, 27 and thereby prevent the formation, on the outside of the suppressor stubs, of a low impedance capable of readily coupling to both aerial units and upsetting their behaviour in the pass band.
Patent GB-1153252-A (GB)
Title: Improvements in and relating to Semiconductor Devices
Inventor: SCHNABLE GEORGE LUTHER
IPC: H01L29/00
Filed: 1967-04-17
Abstract: 1,153,252. Field effect transistor amplifiers and frequency changers. PHILCO-FORD CORP. 17 April, 1967 [15 April, 1966], No. 17620/67. Heading H3T. [Also in Division H1] A field effect transistor, Fig. 2 (not shownbut see Division H1) consists of a source 12 and drain 14 bridged by a channel under an insulating layer, the layer being surmounted by a plurality of gate electrodes one of which may serve as a control electrode and the other or others as a screen or screens. Fig. 5 shows a tetrode amplifier employing such a device 60 having one screen, 20, which is capacitively connected to earth while the input signal 64 is applied to the control electrode 18. Fig. 10 (not shown) depicts an otherwise identical amplifier in which the transistor has two screen electrodes. The Specification indicates that the screens may have their respective potentials controlled by other circuitry, e.g. to provide automatic gain control, and also mentions the possibility of applying signals of different frequency to the various gate electrodes for use of the transistor as a frequency changer. Both enhancement mode and depletion mode operation are envisaged. Reference has been directed by the Comptroller to Specification 1,037,850.