baber/WOPTO huggingface dataset:
Patent GB-167761-A (GB)
Title: Improvements in rifles
IPC: F41A15/14
Filed: 1921-08-09
Abstract: 167,761. Declaye, J. Aug. 9, 1921. Breech actions, sliding breech-block.-Relates to the firing, extracting and ejecting mechanisms of rifles firing rim-fire cartridges and having a percussion-hammer sliding in the breech bolt. According to the invention, (1) a stop is provided to limit the forward movement of the hammer to prevent damage to the edge of the cartridge chamber. In the non-automatic gun shown in Fig. 1, the stop is the rear edge of the breech-body 7 which is engaged by a flange 8 on the cocking-piece integral with the percussion hammer 4. In the automatic rifle shown in Fig. 2, a stop 11 engages the cocking shoulder of the hammer. (2) When the breech-bolt 2 is retracted, the hammer, under the influence of the firing spring, presses the firing-pin 1 forwards and causes it to act as the ejector. (3) The extractor is a pivoted claw 14 controlled by a spring plunger 19 so arranged that as the claw is turned outwards from its innermost position, shown in Fig. 5, first the inner edge 21 and then the outer edge 22, Fig. 3, acts on the claw. (4) The bolthead comprises a slotted plug 12 secured in the hollow front, part of the bolt by a pin 13.
Patent GB-315576-A (GB)
Title: Improvements in folding chairs
IPC: A47C4/18
Filed: 1928-07-21
Abstract: 315,576. Chareau, P. July 21, 1928. Folding seats.-A folding chair comprises a base 1. struts 2 carrying pivoted back-supporting members 3, and pairs of pivoted arms 6, 6<a>, 6<b> carrying imbricated seat panels 5, 5<a>, 5<b> having interengaging flanges limiting their outward stroke, the rear edge of the panel 5 having lugs engaging slots 4a in the back 4. The seat panels are preferably of arcuate convex form, and the arms may be strengthened by tie-rods 8.
Patent GB-759911-A (GB)
Title: Improvements in or relating to the manufacture of electrical capacitors
Inventor: GROUSE RICHARD ALFRED
Filed: 1953-07-31
Abstract: 759,911. Capacitors. HUNT (CAPACITORS), Ltd., A. H. July 30, 1954 [July 31, 1953, No. 21327/53. Addition to 647,573. Class 37. A capacitor comprising a modification of that described in the parent Specification wherein an insulating strip is metallized on one side and the metallizing is separated into two parts by a narrow demetallized band extending in a devious path down the length of the strip, consists of an insulating strip metallized on both sides and possessing a demetallized band on both sides extending in a devious path down the length of the strip. The Figures show a strip whereof the metallizing is separated into two portions 14, 15 by demetallized bands 12 and 13 on opposite sides of the strip, the portions 14 lying opposite the portions 15 on opposite sides of the strip, the corresponding edges in the two Figures being indicated by the letters A and B. The pitch of the pattern on the two sides of the strip is so chosen that when the strip is rolled to make a wound-type capacitor the portions 14 and 15 on one surface make contact with portions 14 and 15 respectively on the opposite side of the strip and forming part of the adjacent turn of the roll. Terminal connections are made by spraying or otherwise bonding metal to the ends of the roll. The insulating strip on which the metallizing is deposited preferably consists of polyethylene terephthalate or of polythene. Specification 680,472 is referred to.
Patent GB-405896-A (GB)
Title: Improvements in or relating to gas meters
IPC: G01F3/22
Filed: 1933-07-29
Abstract: 405,896. Gas meters. FORRESTER, H. J. C., 88, Chancery Lane, London.- (Pintsch Akt.-Ges., J.; 71, Andreasstrasse, Berlin.) July 29, 1933, No. 21355. [Class 54.] A gas meter of the bellows type shown in Figs. 1 and 2 is provided in its cylindrical wall 2 with two valve chambers 6, 7 soldered beneath caps 3 supporting inlet and outlet connections 4, 5. The chambers 6, 7 are provided with valve seatings 16, 18 opening into a measuring chamber 8 on one side of the diaphragm 9 and with valve seatings 15,17 connected by passages 22, 23 partitioned off in the caps 3 to orifices 24 leading to a measuring chamber 19 on the opposite side of the diaphragm 9. The valve reversing mechanism is arranged in the measuring chamber 8 and a partition 25 fitted with a coin-operated valve 26 may be provided in the measuring chamber 19. To avoid an eccentric mounting of the diaphragm 9 the flange 10 to which the diaphragm is secured may project in the opposite direction to the valve chambers 6, 7. In another construction shown in Fig. 5 double-seated valve housings 27, 28 are inserted with their axes horizontal and slightly staggered in the wall 2, the upper walls of the housings being provided with openings 29, 30 communicating with the pipe connections 4, 5.
Patent GB-850790-A (GB)
Title: Improvements in or relating to mechanisms for producing limited rotational movement of a mass
Inventor: BRIDEN HORACE
IPC: H01Q3/06
Filed: 1958-07-03
Abstract: 850,790. Aerial mountings. GENERAL ELECTRIC CO. Ltd. July 3, 1959 [July 3, 1958], No. 21406/58. Class 40(7). [Also in Group XXIX] For rotating a radar reflector about two axes, by a limited amount, a sub-assembly including the reflector is mounted for rotation about one axis and is included in a main assembly mounted for rotation about the other axis, for each rotational movement means being provided to apply a constant torque and an oppositely-directed variable torque. The reflector 1, Figs. 1 and 2, forms part of a sub-assembly 20, rotatable about a vertical shaft 19, the main assembly 18 being rotatable on a horizontal shaft 6. Mounted on the shaft 6 are two toothed sectors 7, 8 operated by toothed racks 9, 10 respectively attached to the pistons 11, 12 of hydraulic cylinders 14, 15, respectively, attached to a fixed mounting. The racks 9, 10 are urged in opposite directions to eliminate backlash in the drive, a constant hydraulic pressure being exerted on the piston 12 and rack 10 via the pipeline 16. For rotating the main assembly in either direction the pressure on the piston 11 and rack 9 can be varied by valve 17 between twice that on piston 12 and zero, the area of piston 11 being double that of piston 12 and the motion ceasing when the two pressures are equal. The sub-assembly is similarly rotatable by toothed sectors 30, 31 mounted thereon and engaging pinions 32, 33 attached to the fixed shaft 19. The sectors are driven by hydraulic cylinders 22, 23 and pistons 24, 25 respectively, through cranked arms 26, 27 respectively. Indicators such as 43 provide position signals and, when mounted on an aircraft, the equipment may be provided with gyroscopes 44, 45 to give information of the orientation of reflector 1 referred to a fixed direction in space.
Patent GB-405645-A (GB)
Title: Improvements in and relating to cartridges for blasting, also applicable to the discharge of projectiles from guns
IPC: F42B3/06
Filed: 1932-07-29
Abstract: 405,645. Propellent and blasting cartridges; esplosives. HODGE, D., 39, Tudor Gardens, West Acton, IGNATIEFF, A., 34, Singleton Scarp, Woodside Park, and CARDOX (GREAT BRITAIN), Ltd., 20, Copthall Avenue, all in London. July 29, 1932, No. 21470. [Classes 9 (i) and 9 (ii).] Relates to cartridges containing a condensed gas such as carbon dioxide, and consists in providing within the cartridge a fluid body capable of being heated and adapted to impart heat or both heat and pressure to the charge of condensed gas to cause the disruption of the cartridge. The cartridge 1 may have a rupturable disc 2 at one end and a screw plug 13 at the other end. The fluid body may be contained in a part of the cartridge 1 next the screw plug 13 and divided from the rest by a valve or a rupturable wall, or it may be contained in a chamber 4 at or around the side of the wall or in the centre as shown in Fig. 1, and extending about half the length of the cartridge. The fluid body may consist of helium or of a mixture of nitrous oxide, oxygen, or air and ethane, ethylene, benzene, acetylene, carbohydrates, alcohols, ethers, or hydrogen, and may be compressed to the liquid state. The components of the mixture may be in separate containers adapted to be broken by a rod arranged as in Specification 386,688, the interaction of the components bringing about the disruption of the cartridge. Or the fluid body may be heated or fired by an electric device 11 or mechanically as in Specification 386,688 aforesaid.
Patent GB-460043-A (GB)
Title: Improvements in and relating to an improved attachment of nozzles, syringes or the like to cold-hot water supply systems
IPC: A61C17/02
Filed: 1935-07-29
Abstract: A nozzle, syringe or the like is attached to a hot and cold water supply system by means of valves connected in each water supply line by means of T-couplings, one valve being adjacent to a mixing chamber to which the outlet from the other valve is connected by extendible flexible piping, and the mixing chamber being detachably connected with the nozzle &c.  A back pressure valve may be provided to prevent water at high pressure entering the low pressure system.
Patent GB-1466131-A (GB)
Title: Shutter control circuit for a camera
IPC: G03B7/01
Filed: 1974-05-15
Abstract: 1466131 Shutter control circuit ASAHI KOGAKU KOGYO KK 15 May 1974 [15 May 1973] 21578/74 Heading G2A [Also in Division H3] A shutter control circuit comprises a first transistor 9 having a first constant voltage source 10 connected to its emitter and a timing capacitor 8 connected to its collector, and a second, complementary transistor 6 coupled to a second constant voltage source 7 of similar construction to the first source 10; the second source 7 being manually set in accordance with a desired shutter time and the second transistor 6 being coupled in emitter-follower fashion to the first transistor 9 to charge the timing capacitor 8 and control a shutter closing electromagnet 13 via a switching circuit 12. Preferably an automatic timing arrangement comprising a third transistor 2, a photodiode 1, a constant voltage source 3 set according to aperture and film speed and a buffer circuit 4 is connectable to transistor 9 by an auto-manual selector switch D.
Patent GB-1533288-A (GB)
Title: Packaging articles above ambient pressure
IPC: B65D81/20
Filed: 1976-05-25
Abstract: 1533288 Packaging goods at a superatmospheric pressure ALCAN ALUMINIUMWERKE GmbH 25 May 1976 [10 June 1975] 21723/76 Heading B8C A method of air-tightly packaging goods, e.g. tennis balls, comprises applying a sealing cap to the open end of a tubular canister which has been partially filled with goods, to form a sealed container, and thereafter cold-working the container to permanently deform it, thereby reducing its internal volume and hence increasing the pressure of the gas or air in the container above ambient pressure. In one embodiment the container is deformed by indenting at least one end, Fig. 6 (not shown), or the tubular wall thereof. In other embodiments, the length of the container is reduced by deforming the tubular wall thereof over at least part of its length in the manner of a bellows. With this latter method the container may be pre-formed with folds 3 or corrugations (5), Fig. 3 (not shown) extending around its tubular wall. The canister comprises a seamless extrusion of aluminium or an aluminium alloy. The cap is also made of a light metal.
Patent GB-706935-A (GB)
Title: Regeneration of ammonium polysulphide solutions by a method involving azeotropic distillation
IPC: C01C3/20
Filed: 1951-09-17
Abstract: <PICT:0706935/III/1> In a process for the recovery of an aqueous ammoniacal solution of ammonium polysulphide which has been used for extracting carbon disulphide and sulphur from benzole or other hydrocarbon oils, whereby ammonium perthiocarbonate is formed in the extracting solution, the spent solution is distilled in the presence of a hydrocarbon oil boiling in the range 110 DEG  to 200 DEG C., whereupon the ammonium perthiocarbonate decomposes into ammonium sulphide, carbon disulphide, sulphur and ammonium thiocyanate.  The overhead vapours are condensed, and the condensate is allowed to settle into two liquid layers; an aqueous layer and a hydrocarbon layer. The residue in the still contains sulphur dissolved in excess hydrocarbon oil, and an aqueous solution of ammonium thiocyanate. The solution of sulphur in hydrocarbon oil is separated, and is reacted with the aqueous layer of the distillate in order to regenerate ammonium polysulphide solution.  The hydrocarbon layer of the distillate is distilled to recover carbon disulphide. Spent solution is introduced continuously down the column of decomposition still 1, which contains refined solvent naphtha and ammonium thiocyanate solution.  The overhead vapours are condensed in condenser 2a.  The two layers of condensate are separated in decanter 3.  The upper (i.e. naphtha) layer is passed to still 6, where CS2 is distilled off as the overhead stream while benzole (or other hydrocarbon dissolved out from the extracted oil) is taken off as a side stream.  The stripped naphtha is withdrawn from still 6 and introduced into still 1. The aqueous layer withdrawn from decanter 3 is agitated in mixer 4 with the solution of sulphur in naphtha, withdrawn from still 1. The mixture is passed from mixer 4 to decanter 5.  Regenerated reagent is withdrawn from the base of the decanter 5; make-up losses of ammonia, sulphur and hydrogen sulphide may be incorporated as necessary. Sulphur-free naphtha, withdrawn as an upper layer from decanter 5, is returned to still 1.  Ammonium thiocyanate solution is withdrawn continuously from still 1, and may be dehydrated by azeotropic distillation.  The anhydrous thiocyanate may be freed from ammonium sulphate and other impurities by dissolving it in methanol or ethanol, and filtering the solution.  Specification 419,312 is referred to.
Patent GB-763047-A (GB)
Title: Improvements in or relating to the production of metal derivatives of cyclopentadiene
Inventor: CLAPP DANIEL BRENNAN
IPC: C07F17/02
Filed: 1952-08-30
Abstract: Iron bis - cyclopentadienyl is prepared by reacting a chloride or bromide of iron with an alkali-metal or alkaline earth metal cyclopentadienyl, a cyclopentadienyl-alkaline earth metal-halide, or a cyclopentadienyl of a metal (other than an alkali or alkaline earth metal) which forms reactive organo-metallic compounds.  Alkali metal cyclopentadienyls.  Sodium cyclopentadienyl may be prepared by reacting finely divided sodium in a hydrocarbon medium (benzene, toluene, xylene or petroleum ether) with cyclopentadiene.  Sodium and lithium cyclopentadienyls may be prepared by reacting cyclopentadiene with the alkali metal aryl, alkyl or aralkyl, e.g. sodium phenyl, sodium amyl or n-butyl lithium, in a hydrocarbon medium such as benzene, pentane, hexane or petroleum ether.  A third method of preparation is the reaction of the alkali metal amide or hydride with cyclopentadiene, in an organic medium such as benzene, toluene, xylene or liquid paraffin.  Alkaline earth metal cyclopentadienyls and cyclopentadienyl-alkaline earth metal halides.  Calcium biscyclopentadienyl may be prepared from diethyl calcium, or from the amide or hydride.  Reacting cyclopentadiene with phenyl calcium iodide will give cyclopentadienylcalcium-iodide.  Cyclopentadienyls of metals forming reactive organo-metallic compounds.  -Zinc biscyclo-pentadienyl may be prepared from diethyl zinc and the corresponding beryllium compound from diethyl beryllium.  Reacting magnesium hydride with cyclopentadiene will give magnesium bis-cyclopentadienyl.  The examples describe the preparation of potassium cyclopentadienyl and sodium cyclopentadienyl, from the finely divided metals; sodium pentadienyl from sodium phenyl and sodium amyl; lithium cyclopentadienyl from n-butyl lithium; sodium cyclopentadienyl from sodamide; and the conversion of these compounds to iron-bis-cyclopentadienyl by reaction with anhydrous ferric chloride in diethyl ether.
Patent GB-644397-A (GB)
Title: Improvements in or relating to fuel injection pumps
IPC: F02M59/46
Filed: 1947-08-08
Abstract: 644,397. Fuel-injection pumps. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN. Ltd. Aug. 8, 1947, No. 21904. Convention date, April 20, 1940. [Class 102(i)] In a fuel-injection plunger unit of the kind comprising a plunger 31 reciprocable within a cylinder 29 projecting into a sleeve member 16, the plunger being rotatable, for varying the pump delivery, by means of a sleeve like control member 21 having external gear teeth 24 accessible through an aperture 16' in the wall of the sleeve member for co-operation with control means 25, the lower part of the sleeve member has an external diameter less than that of the gear teeth and the sleeve. member is so apertured that the plunger unit may be withdrawn from a casing structure 10 housing the control means without disturbing the latter. The plunger is actuated by a cam 15. Fuel is supplied through an inlet 59 and passes into the cylinder through a filter 55, axial passages (not shown) in upper and lower spacer members 53, 46 and in cylinder head 30, and transverse passages (not shown) in the latter. During the delivery stroke the fuel is delivered past a check valve 49 to an outlet conduit 69. An upper housing member 57 is secured to the sleeve member 16 to enclose the pump unit, one or more of which units may be fitted into the casing to open the injection pump. The control means 25 is in the form of a rack which is provided with an extra wide tooth adapted to engage - a corresponding tooth space on the control member for locating the two in a fixed relative position. Specification 643,341 is referred to.
Patent GB-668151-A (GB)
Title: Improvements in and relating to magnetic cores
IPC: H01F27/25
Filed: 1950-09-06
Abstract: 668,151. Transformers and inductors. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 6, 1950 [Sept. 23, 1949], No. 21960/50. Class 38 (ii). A magnetic core comprises six generally rectangular loops 3 ... 8 of magnetic material arranged in two back-to-back groups 1, 2 of three loops each, one loop 4, 7 of each group being located partially inside the other two 3, 5; 6, 8, which are arranged side-by-side, so that the adjacent loop legs form a cruciform cross-section central winding leg, the two outer loops of each group having divergingly curved yokes in order that all the outer legs lie on the same circumscribing circle. Each loop may comprise wound strip flatwise bent to form radially nested laminations.
Patent GB-1205900-A (GB)
Title: Vortex turbulence amplifier
Inventor: WRIGHT FRANCIS FREDERIC STANLE
IPC: F15C1/18
Filed: 1969-04-29
Abstract: 1,205,900. Vortex amplifier. F. F. S. WRIGHT. April 29, 1969 [May 7, 1968], No.22110/69. Heading G3H. A fluid amplifier comprises an open sided vortex chamber V having a radial inlet i aligned with a radial outlet k and the inlet and outlet of an open sided bufferchamber U, the arrangement being such that on receipt of a tangential control signal through either of inputs C or D, the laminal stream normally flowing from inlet i across chambers V and U to outlet O is rendered turbulent and is vented through the open sides of chamber V.
Patent GB-1213106-A (GB)
Title: Anti-sway mechanism for suspended loads
IPC: B66C13/06
Filed: 1969-04-30
Abstract: 1,213,106. Preventing swinging of loads in cranes. FRUEHAUF CORP. 30 April, 1969 [23 May, 1968], No. 22124/69. Heading B8B. Swinging of a load 55, Fig. 8 (which may be e.g. a cargo container 21 or a truck trailer 23 with a container 21 on it), is damped by an anti-sway mechanism 25 secured to a lifting platform 27 and comprising arresting ropes 41 wound on drums 51, two of which are mounted on each end of a shaft 29. The ropes 41 extend in opposite directions from each end of the shaft 29 and the ropes 41 from either end of the shaft 29 are connected to opposite sides of the load 55. The arrangement is such that a brake 39 comprising a drum 43 and shoe 45 opposes the pulling of the ropes 41 off the drums 51, whilst no braking occurs when the ropes 41 are rewound by rewind means including independent prewound spring motors 57 engaged with each of the drums 51 take up slack in the ropes 41, internal unidirectional clutches (not shown) being provided in each drum 51. Fig. 8 shows the load 55 moving with pendulum motion in a lateral direction. The ropes 41 are pulled off both the lower drums 51, turning the shaft 29 and causing work to be done on the brake 39. Concurrently the upper drums 51 are overrunning and their ropes 41 are being rewound on to them by the spring drums 57. Other unwanted load motions are similarly damped. When used on a low lift crane, e.g. as shown in Fig. 1, the brake may be permanently engaged, Fig. 4 (not shown), or for high lift cranes the brake may be disengaged for lowering by hydraulic cylinder, solenoid or mechanical means. Sway of a point load, or one suspended from a single cable, may be arrested by running all the ropes 41 to the load hook. A simpler unit with only one drum 51 at each end of the shaft 29 may be used under certain conditions (not shown).
Patent GB-276157-A (GB)
Title: Improvements in or relating to pressing machines
IPC: D06F71/06
Filed: 1926-09-08
Abstract: 276,157. British-American Laundry Machinery Co., Ltd., (American Laundry Machinery Co.). Sept. 8, 1926 Ironing-presses.-In a press in which the head 3 is lowered manually into light contact with the buck 2 and heavy final pressure is applied by fluid pressure, the means for applying the heavy pressure comprise a piston 31 working in a pivoted cylinder 7 and connected by a lever 13 to a presure bar 6. The admission of the fluid is controlled by a handle 33 and the press is restored to full open position by a spring 32. Specification 276,071 is referred to.