baber/WOPTO huggingface dataset:
Patent GB-770533-A (GB)
Title: Improvements in or relating to substantially firedamp proof explosives of increased power
IPC: C06B45/00
Filed: 1954-03-05
Abstract: 770,533. Safety blasting explosives. DYNAMIT-AKT.-GES. VORM. A. NOBEL & CO. March 5, 1954 [March 7, 1953], No. 6565/54. Class 9 (2). A substantially fire-damp proof explosive of increased power contains, as a first component, between 7 and 12.5 per cent. of a self-explosive, e.g. nitroglycerin, nitroglycol, diglycol dinitrate, or pentaerythritol tetranitrate, and, as a second component, a mixture of an inorganic nitrate and an organic or inorganic compound, which reacts with the nitrate, or yields on explosion a gas which reacts with the nitrate, to produce an inorganic flame quenching salt, the amount of nitrate being stoichiometrically equivalent to the compound or the gas. Alternatively, the explosive contains, as a first component, 7-12.5 per cent. of a chlorine-containing self-explosive yielding chlorine on explosion, e.g. dinitrochlorohydrin and, as a second component, at least one inorganic nitrate in amount stoichiometrically equivalent to the chlorine. In all cases at least 20 per cent. and not more than 90 per cent. of the nitrate or the mixture of nitrate and compound has or have a grain size below 0.1 mm. All the examples refer to compositions containing a mixture of ammonium chloride and sodium nitrate, which will yield sodium chloride on explosion, a mixture of nitroglycerin and nitroglycol, and argillaceous earth. The Specification also refers to the use of hexachlorocyclohexane in place of ammonium chloride, to the use of potassium or calcium nitrates, or mixtures of these with sodium nitrate, and to the use of a mixture of sodium nitrate with ammonium oxalate or sodium acetate, which yields sodium carbonate on explosion.
Patent GB-545546-A (GB)
Title: Improvements in lightning arresters
IPC: H01T1/10
Filed: 1941-05-22
Abstract: 545,546. Protective discharge devices. BRITISH THOMSON-HOUSTON CO., Ltd. May 22, 1941, No. 6569. Convention date, May 22, 1940. [Class 38 (iv)] Relates to lightning arresters of the expulsion type consisting of a fibre gas-emitting tube 21 with an earthed electrode 24 extending into its lower end and an electrode 33 at its upper unsupported end communicating with diametricallyopposed gas vents 39, 40 and located in proximity to the H.T. line which is to be protected according to the invention to facilitate a rapid clearing action, in an enlarged central portion of the tube 21 an intermediate electrode 52 is mounted supported on spiders on the sleeve 56 screwed to the tube 21 which is surrounded by a further tube 22 which may be of gas-emitting material covered with a thin coating of highresistance material with a protective wrapping 23, as described in Specification 540,848. A number of such arresters may be mounted one above the other in series.
Patent GB-359354-A (GB)
Title: Improvements in or relating to devices for holding demountable bodies on vehicles
IPC: B60P7/13
Filed: 1931-03-03
Abstract: 359,354. Vehicles with removable bodies. WADE, H., 111, Hatton Garden, London.-(Motor Terminals Co. ; Wilming- ton, Delaware, U.S.A.) March 3, 1931, No, 6609. [Class 103 (iv).] A device for holding a demountable body on vehicles comprises a member having an upstanding portion with a tapered top and a base projecting to a considerable extent away from the upstanding portion and provided with securing means. The positioning devices comprises sockets b in the removable body into which take projections mounted on the vehicle floor such projections comprise a cylindrical stud 13 with tapered top portion 14 mounted on or integral with a flat portion 16 of quadrant form. This portion 16 is preferably welded to a large base 11 having means such as bolts 20 for securing it to the vehicle floor the heads of the bolts clearing the bottom of the removable body. Preferably six positioning devices 10 arranged as shown in Fig. 2 are provided for each removable body B.
Patent GB-846717-A (GB)
Title: Improvements in or relating to batch weighing systems
Inventor: THORSSON MATTHEW THEODORE WESL
IPC: G01G19/22
Filed: 1957-02-18
Abstract: 846,717. Electrical batch-weighing systems. FAIRBANKS MORSE & CO. Feb. 18, 1957, No. 6662/60. Divided out of 846,715. Drawings to Specification. Class 38 (6). The subject-matter is identical with that of Specification 846,715, but the claims are directed to means for obtaining voltages representative of the weights of two materials, and a compensating circuit for modifying the voltage by proportionately increasing the one and decreasing the other. In the embodiment voltages representing a quantity of sand and a quantity of water are thus proportionately adjusted in accordance with the percentage moisture content of the sand. Specifications 846,716, 846,718 and 846,719 also are referred to.
Patent GB-1185009-A (GB)
Title: Electrical Terminal
IPC: H01R13/11
Filed: 1969-02-07
Abstract: 1,185,009. Two part couplings. FORD MOTOR CO. Ltd. 7 Feb., 1969 [8 April, 1968], No. 6671/69. Heading H2E. A female contact 10 formed from a rolled up metal sheet comprises a cylindrical portion 32 of a first outside diameter and a depressed cylindrical portion 36, having a uniform outside diameter over the length " d ", the diameter of the depressed portion 36 being less than the first outside diameter but not less than the first diameter less two thicknesses of the metal sheet forming the contact. The cylindrical depressed portion 36 constitutes the electrical` contact area. The contact has an entry portion 30, and a slit 38 extends along the length of both the body portion and the depressed portion, the slit opening on the insertion of a male contact of known type 12. A circumferential slot 34, describing not more than 180 degrees of arc, is formed in the body portion 32, so that when the slit 38 is open, the slit 40 in the rearward portion of the contact does not open appreciably. A 0À012 inch thick sheet of brass is a suitable contact blank. Elements 22 are used for crimping the contact to a bared wire.
Patent GB-401165-A (GB)
Title: Improvements in and relating to pre-payment meters
IPC: G07F15/08
Filed: 1933-03-06
Abstract: 401,165. Prepayment mechanism for meters. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitats-Ges., 2, Friedrich Karl-Ufer, Berlin.) March 6, 1933, No. 6769. Convention date, March 5, 1932. [Class 27.] Price - changing mechanism; mechanism for prepaying basic charges.-In a prepayment meter for dual tariff purposes, a shaft 14 having a half-cylinder 141 for controlling the switch, valve, &c. is driven from a shaft 8 through wheels 9, 10, the wheel 10 being loose on the hub of a wheel 12 fixed to the shaft, and being connected to that wheel through a friction drive 11. The shaft 8 carries a planet pinion 4 and is driven in reverse directions by sun wheels 3, 5 which are rotated respectively by a coin-freed resetting shaft 2 and by gearing 6, 7 from the metering mechanism. Each time the shaft 2 is actuated, after the insertion of a coin, by a handle 1, a cam or eccentric 16 on the shaft actuates a pawl 17 which, for a certain number of actuations of the shaft 2 dependent on the setting of a dial wheel 22, is in engagement with a ratchet wheel 13 fixed to the shaft 14. The shaft 14 is thus turned back through a certain angle by the ratchet wheel 13 from the position to which it was moved by rotation of the sun-wheel 3, this backward movement representing the proportion of the value of the coin reckoned as prepaying a basic charge. When the basic charge is paid, or a predetermined quantity of commodity delivered at a high tariff, one end of a lever 18 drops into a notch 21 in a disc 20, which was set by the dial wheel 22, and its other end raises the pawl 17 out of engagement with the ratchet wheel 13. The shaft 14 is now turned backward only by the consumption of commodity which is thus supplied at a lower tariff. The pawl and ratchet 17, 13 may be arranged to add to the forward rotation of the shaft 14. In this case, after a predetermined supply, the tariff would be raised. The disc 20 is moved from its initial position as set by the dial wheel 22, by gearing from the shaft 2 or from the metering mechanism until the lever 18 enters the notch 21. In this movement a spring 23 is tensioned to return the basic tariff device to its initial position when the lever 18 is raised from the notch 21. This may be done under the control of a time switch or by withdrawal of the coin-box. Instead of the ratchet and pawl device, toothed wheels may be used.
Patent GB-217629-A (GB)
Title: Improvements in forging presses or like machines
IPC: B21J7/24
Filed: 1923-03-09
Abstract: 217,629. Massey, Ltd., B. & S., and Massey, H. F. March 9, 1923. Metal-working presses.-An eccentric- or crank-operated press has the reciprocating motion transmitted to the head through one or more confined masses of liquid the volume of which may be varied to adjust the mean position of the head. If desired two masses of oil or water may be employed and are contained in a cylinder 11 on either side of a piston 23 reciprocated by the crank 15. Rotary or sliding valves 41, 42 normally close ports 38, 39 but may be moved in either direction to connect one of the ports directly and the other through inlet valves 43, 44 to a reservoir 33 so that one of the liquid.. masses increases and the other decreases causing an adjustment of the cylinder 11 which forms the press head. The movement of the valves 41, 42 is effected by a treadle 51 through a floating lever 47 connected at its middle point to a lever 54 connected to the piston rod 22 and to a short lever 55 pivoted to the frame. By this arrangement the valves 41, 42 always move in unison with the piston 23 and, until the treadle is operated, with the cylinder 11 so that. the adjusting movement of the cylinder brings it into the normal position relative to the valves 41, 42 and the adjustment ceases. In the case of a vertical press the head may be balanced by a weight 32. If the pressure of the head on the work becomes excessive safety valves 57, 58 leading to and from the reservoir open. If only one fluid mass is employed the control valve is arranged to connect it to the reservoir through an inlet or outlet according as it is moved in one direction or the other. In another modification the head 86, Fig. 7, is carried by a piston 81 in a fixed cylinder 79 both ends of which are constantly connected to a cylinder 78 containing a crank operated piston 80. Valves 97, 98 are arranged so that when moved from their midposition they connect the oil spaces above and below the pistons with the reservoir 33 as in the first modification. These valves are moved by the treadle 51 through a floating lever 102 whose middle pivot 105 is connected to a lever 107 pivoted to the head 86 and engaging a recess 108 in the crank-operated piston rod 82. In another modification the pistons 80 and 81 may be arranged in the same cylinder. The reservoirs are so arranged about the valves &c. as to prevent air from entering the oil spaces. If the areas above and below a double acting piston 23 or 81 are equal the valves may be arranged to connect the oil spaces directly and a reservoir is not required.
Patent GB-1115123-A (GB)
Title: A back cushion assembly for a vehicle seat
Inventor: RADKE ARTHUR OLSEN
IPC: B60N2/70
Filed: 1966-02-17
Abstract: 1,115,123. Securing cushions to seats. BOSTROM CORPORATION. 17 Feb., 1966, No. 6924/66. Heading A4M. Vertical strips (34) of pile fabric are provided on a vehicle seat back for the attachment, at any desired level, of a lumbar support cushion (30), having corresponding strips (32) of pile-engaging hook members for releasable engagement with strips (34). Strips (32) may be used to support the cushion (30) in an out-of-use position on the side of the seat back.
Patent GB-730964-A (GB)
Title: Improvements in and relating to trailers and other vehicles having moving floors andto gear drives thereof
Inventor: ALLEY STEPHEN ERIC
IPC: B60P1/38
Filed: 1952-03-18
Abstract: 730,964. Vehicles equipped with endless conveyer floors. ALLEY TRAILERS, Ltd., and BENTALL & CO., Ltd., E. H. April 13, 1953 [March 18, 1952], No. 7014/52. Class 78 (4). An endless conveyer forming the floor of a farm vehicle is driven through two epicyclic gear trains of different ratios including two sun wheels mounted on a shaft 2, Fig 2, driving the conveyer, one 21, oi the sun wheels being normally fixed and the other, 20, fast or the shaft, and a planet carrier 12 common to both trains and receiving the drive. As illustrated in Fig. 1, the floor of a trailer T comprises chains passing over sprockets P<SP>1</SP>, P<SP>2</SP> and joined by slats M. A shaft S driving the conveyer is driven through gearing from a sprocket 1 driven from the sprocket F on a half-shaft A driven through shafting D from the power take-off shaft B of a tractor. The planet carrier comprises, Fig. 2, a rotary casing 12 which is driven from the sprocket 1 and carries planet gears 23, 24 which rotate together on spindles 26 secured to the casing and which mesh respectively, with the sun gear 20 keyed to the shaft 2 and with the reaction sun wheel 21 which is normally held against rotation by a frangible pin 10 by which it is connected to a bracket 3 in which it is mounted by a self-aligning bearing 5. The sprocket 1 is connected to the casing 12 through dog teeth 15,16 which are forced apart against a spring 17 should the gear be overloaded. The conveyer may comprise contiguous slats or a belt without a supporting fixed floor beneath, and may be driven from the ground wheels instead of from a power take-off.
Patent GB-627099-A (GB)
Title: Improvements in methods for the modulation of an ultra-short wave transmitter
IPC: G11B9/00
Filed: 1947-03-13
Abstract: 627,099. Modulating-systems. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. March 13, 1947, No. 7042. Convention date, March 22, 1946. [Class 40 (v)] A modulation process consists of passing a a strip of film or other material in front of a slit in a cavity resonator which is fed with U.H.F. energy. The invention is especially applicable to cinema sound apparatus. In Fig. 3, a magnetron oscillator 10 feeds energy along guide 9 into a cavity resonator 4 which is terminated by two conducting sheets having slits 3 and 3<1>. The characteristic impedance of slit 3 is varied by passing a film strip 1 in front of this slit. The strip may consist of ordinary sound film, or may be specially manufactured from metallized dielectric ribbon or from a plastic material, the thickness of which is made to vary as the sound intensity by a moulding process. Energy in resonator 4 is thereby amplitude-modulated, and is supplied from. slit 31 to transmission horn 13.. The associated receiving aerial and apparatus may be located behind the cinema screen. Fig. 2 shows a suitable guide to enable the film to slide in front of slit 3. The U-shaped pieces 7 and 8 are made a quarter of a wavelength long to avoid energy leakage. An alternative arrangement (Fig. 4, not shown) is also described in which the strip is passed in front of a slit which connects the main resonator with an auxiliary cavity resonator. A modified form of slit is also described which is shaped as described in Specification 608,254, [Group XL (b)]
Patent GB-371109-A (GB)
Title: Improvements in or relating to lock nuts
IPC: F16B39/36
Filed: 1931-03-06
Abstract: 371,109. Lock nuts. SOC. ANON. DES ATELIERS GAMAIN, 6, Rue de la, Limite, Liege, Belgium. March 6, 1931, No. 7064. Convention date; March 13, 1930. [Class 89 (i).] A nut 1 has a conical surface formed with ribs to engage the conical socket 4, the angle of the socket being slightly less than that of the nut. In a modification the ribs are formed on the socket. In a further modification, the nut and socket are both formed as plain conical surfaces and the socket is threaded so as to engage the bolt threads. Reference has been directed by the Comptroller to Specification 143,133, [Class 89 (i), Bolts &c.].
Patent GB-907978-A (GB)
Title: Apparatus and method for the compression of color images
IPC: H04N1/60
Filed: 1961-02-27
Abstract: 907,978. Television. FAIRCHILD CAMERA & INSTRUMENT CORPORATION. Feb. 27, 1961 [March 1, 1960], No. 7107/61. Drawings to Specification. Class 40 (3). [Also in Group XL (c)] In an arrangement in which a coloured original (film transparency, photographic print &c.) is scanned photo-electrically to produce signals representative of the component colours thereof the range of both the luminance and the colour saturation of each point of the original is compressed (or expanded) without affecting the dominant wavelengths of the latter so that satisfactory reproduction by a different medium e.g. letterpress, gravure, lithographic printing &c. having ranges of luminance and saturation different from the original may be effected. The Specification gives a mathematical analysis of the problem and shows that the desired modification (" compression," in the described embodiments) may be effected by adding to each original colour component signal a colour saturation correction signal dependent on the instantaneous maximum and minimum values of the original signals and by multiplying each original colour component signal by a luminance correction signal also dependent on the instantaneous maximum and minimum values of the original signals. In one embodiment (Fig. 1, not shown), the correction signals are derived by computer means and caused to operate on the original signals at a point in the circuit subsequent to that at which they are derived. In a second, preferred, embodiment (Fig. 2, not shown), each colour component channel utilizes a photo-multiplier tube to the output of which the colour saturation correction signals, derived from a subsequent point in the circuit, are added the luminance correction signals, derived from the same point, being employed as modulation signals for the voltage supply to the dynodes of the multiplier. Specifications 692,349 and 692,400 and U.S.A. Specification 2,843,664 are referred to.
Patent GB-218974-A (GB)
Title: Improvements in or relating to the treatment of gases and the like
IPC: B01D53/04
Filed: 1924-03-20
Abstract: 218,974. Urbain, E. July 13, 1923, [Convention date]. Gases, separating mixtures of.-A process for the selective adsorption of gases by means of carbonaceous materials, consists in passing the gases through an apparatus containing moderately active carbonaceous material packed within or high boiling-point hydrocarbons; then passing the residue through an apparatus containing highly actve carbonaceous material packed within or about a nest of tubes, while the material is being indirectly cooled, for the adsorption of hydrocarbons of lower boiling point; and then extracting the last-mentioned hydrocarbons from the material by indirectly heating and simultaneously passing steam through it and/or subjecting it to reduced pressure. An apparatus for carrying out the latter part of the process comprises a casing 1 Laving a series of tubes 2 secured to two head plates. The adsorbent material is packed in the tubes and supported by porous plugs 3. Inlet and outlet pipes f, D, G, H are provided for heating and cooling fluids, such as steam or combustion gases, and water, air or other gases. The gaseous mixture to be adsorbed enters the apparatus at A and leaves at B or vice versa. By means of the pipes K, J. L direct heating or cooling of the adsorbent may be combined with the indirect methods. The recovery of the adsorbed gases may be facilitated by establishing a vacuum in the apparatus, and the adsorption may ba combined with a fractionation of the constituents of the gas mixture by the provision of a rectifying column. Also, a number of such units of apparatus may be arranged in series, and' the adsorbent may be packed about instead of within the tubes. Applications specified are the separation of hydrocarbons from distillation gases, for example benzene from coal gas and the recovery of volatile solvents.
Patent GB-1382201-A (GB)
Title: Copper alloy
IPC: B32B15/01
Filed: 1972-02-16
Abstract: 1382201 Copper-base alloys OLIN CORP 16 Feb 1972 [13 March 1971] 7246/72 Heading C7A  A copper-base alloy comprises by weight:- 22 to 40% manganese 0.1 to 2% iron 0.1 to 5% aluminium 2 to 10% zinc optionally less than 5% each of lead, tin, silicon, cobalt, magnesium and nickel up to 0.3%. each of phosphorous, arsenic, antimony, lithium and boron the balance being copper and impurities up to 0.05% each maximum total 0.25%. The alloy is substantially alpha-phase solid solution containing finely dispersed secondary phases, the grain size being less than 0.010 mm. The alloys may he hotrolled at 700-850‹C and cold-rolled with intermediate anneals at 500-800‹C to form sheets, strips or wire. They are particularly suited for brazing ferrous or white metal alloys, and may also find use in high-strength springs. Brazing structure composites may be formed of stainless steel or nickelbase wires clad with the alloy of the invention.
Patent GB-659640-A (GB)
Title: Improvements in or relating to plain bearings
IPC: F16C33/12
Filed: 1949-03-17
Abstract: 659,640. Bearings. GLACIER METAL CO., Ltd., FORRESTER, P. G., and TAIT, W H. March 17, 1949, No. 7326. [Class 12 (i)] [Also in Groups XXII and XXXVI] A heavy-duty bearing comprises a shell of cast iron having its graphite in nodular formation, and a lining of bearing metal bonded thereto. Before casting the shell, cerium, magnesium or alloys thereof are added to the molten iron to produce a nodular formation of the graphite, and after casting the surface of the shell is treated chemically to remove graphite, silica and other non-ferrous constituents. The lining of bearing metal may be produced in situ on the tinned surface by casting, electrodeposition or by sintering metal powder. Alternatively the lining may be prepared as a strip and subsequently bonded to the shell as by soldering.
Patent GB-663063-A (GB)
Title: Improvements in or relating to magnetrons
IPC: H01J25/587
Filed: 1948-03-11
Abstract: 663,063. Magnetrons. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 11, 1948 [May 10, 1947], No. 7464/48. Class 39 (i). A multi-cavity magnetron wherein the resonators have slots constituting capacitative elements has an auxiliary cathode adjacent to but outside the slots and arranged to introduce electrons in the slots and thereby change the capacity and tune the magnetron. The Figure shows a magnetron wherein the resonators are of the hole-and-slot type. The auxiliary cathode 19 comprises a toroidal portion 21 filled with insulation and containing a heater wire. The toroid is broken at one point to allow connection to be made to one end of the heater through lead-in 25. The other end of the heater is connected to the casing to which connection is made through lead-in 27. The cathode is coated with emissive material at points opposite the slots of the resonators and projects a beam of electrons through the slots as shown by the dotted lines, the beam being focused by the magnetic field of the magnetron. Specifications 630,710 and 656,570 are referred to.