baber/WOPTO huggingface dataset:
Patent GB-1520716-A (GB)
Title: Tear-off closure and method of forming same
IPC: B65D41/44
Filed: 1977-02-01
Abstract: 1520716 Tear-off cap ALUMINUM CO OF AMERICA 1 Feb 1977 [25 Feb 1976 (2)] 04045/77 Heading B8T [Also in Division B3] A tear-off cap is drawn from a disc into a cup shape 2 partially separated from a side wall 15 by an incomplete line of shearing 14, and the side wall 15 is then curled into a bead having a radially inward slot which entraps the edge of the cup at the line 14. When the closure is applied to a bottle (Fig. 11) the edge of the cup is released from the bead by crimping the edge around the bottle neck as at 60, the bead forming a pull ring 6.
Patent GB-511142-A (GB)
Title: A process for the destructive hydrogenation under pressure of coal
IPC: C10G1/08
Filed: 1938-02-10
Abstract: 511,142. Destructive hydrogenation. POTTS, H. E. (International Hydrogenation Patents Co., Ltd.). Feb. 10, 1938, No. 4146. [Class 32] Final liquid products with a lower asphalt content, or a bigger throughput without.. increasing the asphalt content, are obtained by continuous destructive hydrogenation under pressure of coal at temperatures between 350-500‹C., preferably 420-490‹C., in which the temperature of the reagents is progressively lowered as the reaction proceeds, the reaction products being continuously withdrawn from the reaction space and separated. The temperature may be lowered gradually or in steps but any intermediate rise in temperature is not allowed to exceed that of the preceding stage. Several reaction vessels may be provided, and with suitable cooling means between consecutive vessels ; or temperatures may be lowered within the reaction vessels, e.g., directly by cooling gases, cool oil or cool coal paste or indirectly, e.g., by water. Lowering of temperature is of the order of 10-15‹C. Suitable catalysts, e.g., sulphides and oxides of heavy metals, particularly the 4th and 6th groups of the periodic system, or of the iron group, may be employed. Pressures of more than 100, e.g., 200-1,000 or more atmospheres are employed. In an example, German brown coal pasted with an equal amount of heavy oil boiling above 325‹C. is passed, with a bog iron catalyst and hydrogen under a pressure of 200 atmospheres, though four vessels in which the temperatures are regulated so as to fall gradually from 470 to 450‹C. The products from the last vessel are passed through a hot catalyst and the gaseous and vaporous products separated from heavy oil containing ash, unconverted coal and asphalt. With a throughput of 75 kg. per 100 litres of reaction space, the asphalt content of the heavy oil is 8-10 per cent. as compared with 15-18 per cent. if the temperature is allowed to rise from 454-470‹C. For an oil containing 15-18 per cent. of asphalt, throughput can be increased to 100 kg. per 100 litres of reaction space. Specification 311,759, [Class 32], is referred to.
Patent GB-696385-A (GB)
Title: Automatic pilot and ignition control for fuel burners
Inventor: STROBEL CHARLES KENNEDY
IPC: F24C3/10
Filed: 1951-02-20
Abstract: 696,385. Igniting and controlling burners. ROBERTSHAW FULTON CONTROLS CO. Feb. 20, 1951, No. 4150/51. Classes 75(i) and 75(iii) Ignition and flame failure control apparatus for fluid fuel burning appliances having main and pilot burners comprises an electric catalytic igniter 42, so placed that unburnt fuel from the pilot burner impinges thereon in the absence of a flame at the pilot burner, means, e.g. a transformer 44, for electrically energizing the igniter to a temperature below the igniting temperature of the fuel such that on impingement of fuel from the pilot burner 12 on the igniter 42 the latter is heated to the igniting temperature of the fuel to light the pilot burner 12, and means. responsive to the presence or absence of a flame at the pilot burner for controlling: the fuel supply to the main burner. The apparatus shown is operated by opening a valve 16 to allow fuel to the pilot burner 12 and to a casing 20 containing a closed spring-pressed valve 36 cutting off the supply through a pipe 18 to the main burner 10. The pilot burner 12 is lit by the igniter 42 through a flash tube 46 and the flame therefrom heats a bulb 22 containing mercury which vaporizes and expands through a capillary tube 24 and actuates a diaphragm 28 to open the valve 36, so that fuel passes to the main burner 10 to be ignited by the flame at the pilot burner 12. The igniter 42 is energized continuously so that in the event of accidental extinction of the pilot burner flame it is re-ignited immediately. In the event of the pilot burner flame failing to re-ignite when the thermal element 22 is heated the latter. cools and the valve 36 closes to cut off the fuel supply to the main burner 10. The valve 16 incorporates a thermostat controlling the fuel supply to the main burner 10. The valve 16 incorporates a thermostat controlling the fuel supply to the main burner 10 only, and may be of the construction described in Specification 625,696, [Group XXIX]. In a modified embodiment for ensuring more rapid cooling of the thermal element 22 the latter is located exteriorly of the oven compartment containing the main burner 10 and the pilot burner 12 and is heated by an additional pilot burner ignited from the pilot burner 12 through a flash tube.
Patent GB-1081498-A (GB)
Title: Tubular heat exchangers
IPC: F28F9/013
Filed: 1966-01-31
Abstract: 1,081,498. Heat exchanger tube supports. ROSENBLADS PATENTER A.B. Jan. 31, 1966 [Feb. 8, 1965], No. 4163/66. Heading F4S. In a tubular heat exchanger comprising rows of tubes 1, wherein helical wires 12 encircle some of the tubes and separate these tubes from other tubes not so encircled, the helical wires 12 are secured at their ends by welding or hooking to thin sheet metal walls 11a, 11b, located between adjacent rows of tubes and fastened to a partition 3. In a modification, the tubes 1, shown as U-tubes supported from a single tube sheet 2, are replaced by straight tubes attached to tube sheets at their opposite ends (Fig. 4). The tube assembly including the tubes, tube sheet or sheets, wires and partition are removable as a unit from the casing 4.
Patent GB-933380-A (GB)
Title: Improvements in and relating to electrical apparatus
IPC: H04N9/24
Filed: 1960-02-05
Abstract: 933,380. Colour television. PHILCO CORPORATION. Feb. 5, 1960 [Feb. 5, 1959], No. 4164/60. Class 40 (3). Relates to a colour television receiver utilizing a cathode-ray tube 16 of the type arranged to produce from the screen an indexing signal which is employed to control the relationship between the tube modulation and scanning and in which a pilot oscillation from an oscillator 24 is also employed to modulate the tube in order to produce a readily distinguishable indexing signal. In accordance with the invention, the pilot oscillation is controlled in frequency by the line and/or frame synchronizing signals by means of a circuit 37 in order that interference patterns produced on the screen due to the use of a pilot oscilllation may become stationary and less apparent, The pilot oscillator may be set to operate with a frequency approximately equal to a desired integral multiple of either whole or half line frequency and may be brought into accurate multiple relationship by direct injection of the line synchronizing pulses into the oscillator tank circuit. Alternatively, signals for injection into the tank circuit may be produced at the desired oscillator frequency by means of multiplier circuits. In a further arrangement a signal derived from the synchronizing signals may be compared with oscillator frequency in a phase detector and employed to control the oscillator frequency by means of a reactance stage. Finally, the pilot oscillator may be dispensed with and the oscillation derived directly from the synchronizing pulses by multiplication. Specification 762,550 is referred to.
Patent GB-210988-A (GB)
Title: Improvements in clips or fasteners and sockets or holdfasts for mops
IPC: A47L13/24
Filed: 1923-02-13
Abstract: 210,988. Long, G. F. Feb. 13, 1923. Handles with clamping-devices for mops. - A device for clamping mop material on a handle comprises three elements, a plate a, Fig. 1, with arms a', a slotted disc or plate c, Fig. 2, and a socket d, Fig. 3, with projections or arms d<1>. In the form shown, with two slots c<1> in the plate c, the arms a<1> are passed through the slots and bent down inwardly as at a<x>, Fig. 5, and the arms d<1> are passed through and bent down outwardly. There may be four slots in the plate c two for each pair of arms all in line, or two at right angles to the other two. The disc c may be of metal, or of leather or hard rubber, and when metal may have a rubber ring e applied to its edge. The mop material b is clamped between the disc c and the plate a and its arms a'.
Patent GB-396638-A (GB)
Title: Improvements in cocks
IPC: F16K5/22
Filed: 1933-02-10
Abstract: 396,638. Lubricating valves. FIED. LER, S. O. A., 6, Rue de la Muette, Paris. Feb. 10, 1933, Nos. 4185 and 4186. Convention dates, Feb. 17, 1932, and March 31, 1932. [Classes 12 (ii) and 12 (iii).] A plug cock connecting two pipes 4, 5, one, 4, of which always contains pressure fluid, comprises in combination a lubricant supply chamber 20 constantly subjected to the pressure in the pipe 4 and in constant communication with longitudinal lubricating grooves on the surfaces of the plug 9 and its body 1, the said grooves terminating in the contacting surfaces of the plug and its body, and conduits also in the plug and its body which are open to the atmosphere and can be brought into and out of communication with the longitudinal grooves when the plug is rotated. The grooves or the conduits referred to may be in the plug only or in the cock body only. The chamber 20 is closed by a piston 21 the piston rod of which is guided in an axial bore 23 leading lubricant by way of radial passages 24 to diametrically opposite longitudinal grooves 25 in the surface of the plug. Further radial passages 24<1> conduct lubricant to longitudinal grooves 26 in a liner 8 when the plug cock is open. The conduits which open to the atmosphere are in the form of pairs of small grooves or striµ 27, 28 in the conical surfaces of the plug 9 and liner 8 respectively, opening to the atmosphere at the lower end 13 of the plug and registering with the grooves 26, 25 respectively when the cock is closed by an anticlockwise rotation of 90‹. In the latter position of the plug, the pipe 5 is connected to the atmosphere by a right-angle passage 11, 12 opening into the face 13. The chamber 17 at the larger end of the cock is constantly subject to the pressure in the pipe 4 by means of a passage 18 and is closed by a cap 16 removable for filling purposes. A spring 14 presses the plug 9 to its seat.
Patent GB-1451533-A (GB)
Title: Apparatus for dispersing a liquid solid particles contained in aglomerated form in the liquid
IPC: B01F7/00
Filed: 1974-01-29
Abstract: 1451533 Mixing apparatus for solids in liquids G R SCHOLD 29 Jan 1974 04205/74 Heading B1C An apparatus for dispersing solid particles contained in agglomerated form in suspension in a liquid comprises a mixing vessel 16 formed by one cup-shaped element 23 having a central opening 38, Fig. 8, or a plurality of such cupshaped elements stacked one upon another, Fig. 3, the element or elements being received'between end closure means 24, 25, one end closure 25 being provided with an inlet 17 which can be connected to means (20 Fig. 1 not shown) for introducing to the inlet the mixture under pressure and the other end closure 24 being provided with outlet 48 for the treated liquid. Releasable means, bolts 26, hold the assembly together. The or each cup-shaped element defines a chamber 64 and also has an internal cavity 32 with inlet 34 and outlet 36 passages for coolant liquid. A rotatable shaft 15 driven by a motor (13 Fig. 2 not shown) carries agitator discs or discs 22 which extend into chamber or chambers 64. The discs may be formed with a central portion 53 with twisted upper and lower split flanges 56 Fig. 7. The cavities 32 communicate at 34, 36 and 37.
Patent GB-798871-A (GB)
Title: Improvements connected with means for locating and fixing switch mechanism and the like in hollow walls and panels
Inventor: AVISON ROBERT GEOFFREY
IPC: H02B1/044
Filed: 1955-02-12
Abstract: 798,871. Switch-boxes. TUCKER & CO., Ltd., J. H. Feb. 13, 1956 [Feb. 12, 1955], No. 4239/55. Class 38 (5). [Also in Group XXXVI] A wall-box 1 for mounting a switch in hollow walls or panels, particularly walls and panels formed as a cellular structure, has rigid walls 2 with slots 2a therein adapted to receive tongued pieces 3, the outer ends of which are arranged to abut the underside of a surface of the wall or panel 4, the tongued pieces being fixed in position after assembly by means in the box. As shown, each piece 3 has a barb 3a preventing its accidental removal, and is made resilient so that it can be sprung over a fixing detent 1a in the box 1. Jack screws (not shown) may pass through the base of the box so as to allow adjustment of the box to provide for flush mounting. The tongued pieces may be combined with fixing lugs for the switch. Specification 781,592 is referred to.
Patent GB-779333-A (GB)
Title: Glass bending moulds
IPC: C03B23/027
Filed: 1956-02-10
Abstract: 779,333. Shaping glass. PITTSBURGH PLATE GLASS CO. Feb. 10, 1956 [March 23, 1955], No. 4284/56. Class 56 In a convex glass bending mould, supporting means are provided for exerting a force against the glass to support it between points at which pressure is applied thereto during a heating process, the supporting means being such as to cease to exert such force upon positive movement of the glass a predetermined distance against the force. In a mould 2, which is provided with a pressure device 4 as described and claimed in Specification 763,698, the supporting means comprises a pair of U-shaped arms 5.lying between the centre part of the mould, where the glass sheet 3 is supported substantially flat, and the end where pressure is applied by the device 4, each arm 5 being pivoted to the inside of the mould by a pin 6 at one end, the other free end 7 bearing against the glass sheet 3. On the outside of the mould, each pin 6 is used to secure a bracket 6a holding a tube 8 in which a ball 9 is free to roll. As shown, prior to bending, the balls 9 lie on the side of brackets 6a remote from the supporting ends 7 which are pressed upwardly against the glass sheet 3, upward movement being limited by stops 19. As the glass sheet is pressed downwards, the arms 5 pivot about the pins 6 and the balls 9 roll to the other end of tubes 8, where they are held by bars 8a, the weight of the balls holding the free ends 7 so that no upward force is exerted on the glass sheet 3. Other forms of over-centre mechanism, to replace the tube 8 and balls 9, are suggested.
Patent GB-977709-A (GB)
Title: Hydrazine derivatives and preparation of same
Inventor: DRAIN DAVID JOHN
Filed: 1961-02-04
Abstract: The invention comprises compounds of general formula <FORM:0977709/C1/1> wherein X represents a halogen atom, n represents 0, 1, 2 or 3, R represents an alkyl (including cycloalkyl) group containing up to 4 carbon atoms, and R1 represents hydrogen or an alkylbenzenesulphonyl or benzenesulphonyl group; their acid addition salts; and their preparation by reduction of a corresponding N-nitrosamine of formula <FORM:0977709/C1/2> (the sulphonyl substituent of which, when present, may be hydrolysed off before or after reduction), the product optionally being isolated in the form of a hydrazone formed from a steam-volatile aldehyde and regenerated by treating this with aqueous acid at elevated temperature and removing the aldehyde so formed by steam distillation. N-Nitrosamines II are prepared by reaction of nitrous acid or of an alkyl nitrite and acid with an amine of formula <FORM:0977709/C1/3> which may be obtained (and hydrochlorides) either by reaction of a corresponding benzyl bromide and amine RNH2 or by hydrogenation and optionally hydrolysis of a Schiff's base of formula <FORM:0977709/C1/4> which may be obtained from a corresponding benzaldehyde and amine.  6-Bromo-N-methyl-3, 4-dihydro-1, 3, 2-benzoxazine is obtained from p-bromo-phenol, methylamine and formaldehyde, and on refluxing with hydrochloric acid in ethanol yields N-(3-bromo-6-hydroxybenzyl)-methylammonium chloride. 3-Benzenesulphonyloxy-benzyl bromide and the 4-bromo-, 6-bromo- and 6-chloro-compounds and 2-benzenesulphonyloxy-3-bromo-benzyl bromide are obtained by irradiation-catalyzed bromination. 2-(p-Toluenesulphonyloxy)-benzaldehyde is prepared from p-toluenesulphonyl chloride and salicylaldehyde.  Pharmaceutical compositions which comprise compounds I and the physiologically tolerable acid addition salts with carriers or diluents are mentioned for the treatment of mental disorders.  In the second and third Provisional Specifications it is said that R1 may be acyl generally.
Patent GB-712212-A (GB)
Title: Improvements in or relating to scaffold frame units
IPC: E04G1/22
Filed: 1952-02-19
Abstract: 712,212. Scaffolding. HAWES, A. H. Feb. 12, 1953 [Feb. 19, 1952; Feb. 19, 1952], Nos. 4327/52 and 4328/52. Class 20 (2) In a scaffold comprising a pair of frame units connected in spaced relationship by ledger tubes, ledger tube securing clamps constructed as sleeves with clamping means are secured permanently to the frame unit. In Figs. 1 and 4 a pair of vertically extensible frames 10 are connected by telescopically extensible ledger tubes 22, 23. The ends of the members 22, 23 are engaged in sleeves 20 in the corners of the frame, welded to both the vertical and horizontal members 11, 12 and 13. The ledger tubes are held in the sleeves 20 by clamping screws 24. To facilitate storage of the scaffold, pairs of brackets 30, 31 are adapted to receive the ends of the ledger tubes so that each ledger tube is disposed adjacent an upright of the frame as indicated at 33, Fig. 4. Specifications 642,367, 642,383 and 642,388 are referred to.
Patent GB-571743-A (GB)
Title: Improvements in and relating to stone-cutting machines
IPC: B28D1/06
Filed: 1944-03-09
Abstract: 571,743. Stone cutting machines. SYMINGTON, H. K. March 9, 1944, No. 4441. [Class 124] In a stone-cutting machine in which a saw frame 7 is suspended by rods 8 which are pivoted at 8a on vertically movable horizontal shafts and in which the frame carries a pivot pin 12 whereby it is oscillated by a crankdriven connecting rod, a substantially constant and equal amplitude of swing of the frame on both sides of the vertical planes containing the centres of oscillation of the rods is maintained by means of a bearing member 20 carried at the end of the connecting rod and encircling an eccentric 19 on the pivot pin 12, the eccentric being rotated in the bearing member by means actuated by the descending motion of the frame. The pivot -pin 12 is connected by bevel, worm, or spur-and-pinion. gearing 17, 18 to a shaft 13 carrying a drum 16 for a cable 26, one end of which is anchored at 27 to the frame and the free end of which carries a weight 31, the cable passing over guide pulleys 28, 29 at the same height as the pivots 8a. The cable, drum and pulleys may be replaced by a chain-and-sprocket wheels.
Patent GB-474194-A (GB)
Title: Improvements in electric water heaters
IPC: F24H1/10
Filed: 1937-02-15
Abstract: 474,194. Electric water heaters. KELLNER, L., KELLNER, M., and GEBERT, V. Feb. 15, 1937, No. 4451. [Class 39 (iii)] In a flow heater wherein the water passes through channels 10 formed between superimposed heating elements 11, the channels are formed by pairs of superimposed plates, one plate 8 of a pair being flat and the other 9 being corrugated. At the ends of the heater the water paths are spirals and at the central part the path is sinuous. The inlet passage to the heater is narrower than the outlet passage. The regulating valve carries a pointer 33 moving over a scale 34 calibrated for outlet temperatures.
Patent GB-903153-A (GB)
Title: Improvements in or relating to apparatus for delivering a stream of liquid at a constant rate of flow
IPC: G05D7/00
Filed: 1959-02-09
Abstract: 903,153. Reciprocating pumps; raising liquids. COMPAGNIE DE SAINT-GOBAIN. Feb. 9, 1959 [Feb. 7, 1958], No. 4505/59. Classes 102(1) and 102(2). Apparatus for delivering liquids from a tank 1 at a constant rate of flow comprises a cylinder 3, having an inlet at the bottom and an outlet 6 at the top which is higher than the tank, and housing a piston 4 of smaller diameter than the cylinder. A conduit 2 leads from the tank to the cylinder inlet and has a portion above the outlet 6 which is connected by a line 9 to valves 10, 11. In operation with the piston 4 in its upper position the valve 10 is opened to connect the line 9 to vacuum and thus prime the syphon to feed liquid from the tank 1 to the cylinder 3. The valve 10 is then closed and the valve 11 opened to connect 9 to the atmosphere and the piston 4 is moved into the cylinder at a constant speed whereby liquid is forced past the piston to the outlet 6 and flows through conduit 7 to a tank 8 at a constant rate of flow. Two cylinders 3 may be provided and operated such that a continuous flow of liquid is supplied to the tank 8 at a constant rate.
Patent GB-732277-A (GB)
Title: Overload protection for power supplies of an electrostatic precipitator
IPC: B03C3/66
Filed: 1953-02-18
Abstract: 732,277. Rectifying. AIR PREHEATER CORPORATION. Feb. 18, 1953 [Feb. 18, 1952], No. 4527/53. Class 38 (2). [Also in Group XXXVII] An electrostatic precipitator supplied by a rectifier connected to the secondary of a power transformer having a current-limiting reactor in its primary circuit, is de-energized on overload, e.g. due to a short-circuit between electrodes, by a relay responsive to excessive voltage across the reactor. In one form, Fig. 2, a potentiometer 42 is connected across the reactor 40 and the relay 31 is connected through the tapping 43 to the reactor. The contacts 32 of the relay are normally closed and so maintain energization of a contactor coil 28. On overload, the volts-drop across the reactor energizes the relay 31 and opens the circuit of coil 28 to disconnect the supply. In a modification, Fig. 3, a resistor 45 is connected in the D.C. lead of the rectifier 24 so that increased current through the resistance increases the volts-drop across the reactor. In a further form, Fig. 4 (not shown), the relay 31 is energized over a time-delay circuit, and in Fig. 5 (not shown), the electromagnetic relay 31 is replaced by thermionic relays. A cam 36 which rotates with the precipitator rotor (not shown) periodically closes contacts 38 so as to automatically reclose the contactor. The precipitator may be that of Specification 684,024, [Group XL (a)].