baber/WOPTO huggingface dataset:
Patent GB-427697-A (GB)
Title: Improvement in metal extrusion press and method of operation
IPC: B21C27/04
Filed: 1934-08-20
Abstract: 427,697. Squirting. GENERAL CABLE CORPORATION, 420, Lexington Avenue, New York, U.S.A.-(Assignees of MacKnight, E. W. ; 826, Avenue A, Bayonne, New Jersey, U.S.A.) Aug. 20, 1934, No. 23954. Convention date, Dec. 19, 1933. [Class 83 (iv)] The ram of an extrusion press has a longitudinal opening therethrough for charging the cylinder with molten metal. A press comprises a cylinder 24, and die block 29, 30, moved upwardly over a stationary ram 23 by a hydraulic press plunger 31. An enlarged head 44 is screwed into the ram 23 and has a central aperture controlled by a valve 56 which opens on the retracting stroke of the press to an extent limited by a spider 55 to permit molten metal to be charged into the container through a tube 62 communicating with a supply of molten metal and passing through an opening 41 in the ram. The valve projects below the lower face of the head 44 so that a slight delayed action occurs. The tube engages a conical seating in a disc 61 and is held thereagainst by a spring 79. The ram 23 passes through a stuffing box 26, 34, and air is exhausted through a pipe 38. A pipe 82 for exhausting air from the space around the pipe 62 is provided, and the joints at various positions on the apparatus have stuffing boxes or packing to ensure air-tight connections. Electric current is passed through the three parts of the tube 62 by transformers 91, 94, 97. The movement of the press members rotates a shaft 117 through a lost motion device comprising an arm 125 engaging nuts 123, 124 on a chain 120 passing over a wheel 119 on the shaft. The shaft 117 carries a pinion 116 engaging a rack 115 on the rod of a piston 109, alternately to fill a cylinder 104 from the vessel 87 through a valve 106 and to discharge the molten metal through the pipe 62 on the return stroke of the press. The valve 106 is rotated for opening and closing by a pulley and cord device 142, 146 on the throw of a member 133 initiated by pawl and ratchet devices 131, 132 on the shaft 117. The dimensions of the apparatus are such that the quantity of metal collected in the cylinder 104 by the piston 109 is at any time equal to that which has been extruded from the press. A dial indicator shows the amount of metal in the melting pot and the amount extruded, this indicator being especially applicable to a modification wherein the pump cylinder 104 is dispensed with and atmospheric pressure is used to charge the metal through a valve-controlled pipe to the evacuated press. Specification 427,696 is referred to.
Patent GB-1525886-A (GB)
Title: Coin operated mechanisms
IPC: G07F1/04
Filed: 1977-07-07
Abstract: 1525886 Coin operated mechanism AMF INC 7 July 1977 [10 June 1976] 24026/76 Heading G4V A coin operated mechanism has a plurality of spring urged fingers 10 which are pressed out of their normal positions by a coin to enable the coin to move a release member 22A which is held against movement when any one of the fingers is in its normal position by a bar 20 which engages an abutment surface (16) on the finger, wherein the fingers have projections 17 adapted to enter the centre of a beer can ring 27 to return the fingers to their normal positions.
Patent GB-732130-A (GB)
Title: Improvements in or relating to the extrusion of synthetic linear polymers
Inventor: LAMING PATRICK BREADWELL
IPC: D01D1/04
Filed: 1952-09-25
Abstract: <PICT:0732130/IV (a)/1> Apparatus for making artificial filaments by melt-extrusion comprises a melting-chamber with a grid therein which may be heated to melt filament-forming material introduced into the chamber, means for conducting material melted by the grid to a spinneret assembly, and a device having a plurality of outlets through which a plurality of streams of water vapour may be injected into the chamber at spaced-apart locations.  The filaments may be produced from a synthetic linear polymer, e.g. a polyamide.  As shown, polymer in flake form 1 is introduced to a melt chamber 3 which is provided with a melt grid 5.  This grid consists of an annular member 7 with a series of hollow fins 9 communicating with the interior of member 7.  It is heated by circulation of a liquid therethrough, e.g. a eutectic mixture of diphenyl and diphenyl oxide. Polymer flakes falling on fins 9 are melted and the molten material collects in a pool 11 from which it is conducted through a pump 13, which controls the flow, to a spinneret assembly 15.  To prevent oxidation of the molten material, water vapour in the form of dry steam is injected into chamber 3 through pipe 17 and an annular tube 19 which is provided with a number of small holes, e.g. sixteen, directed towards the grid.  The holes may have a diameter of 0.04 inch.  The steam passes through the chamber and out of the open hopper and is of sufficient volume to remove air from the chamber. In another construction, the wall of the melt-grid unit itself has a steam duct or channel formed therein, with steam-dispersing holes spaced round it and piercing the wall.  Specification 653,757 is referred to.
Patent GB-424785-A (GB)
Title: Improvements in or relating to blasting explosive cartridges or borehole charges
IPC: C06C7/00
Filed: 1933-08-30
Abstract: 424,785. Blasting - cartridges; explosives. WHITE, A. G., 45, Caledonia Road, Saltcoats, Ayrshire, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. Aug. 30, 1933, No. 24073. [Classes 9 (i) and 9 (ii)] A blasting-cartridge or bore charge for use in quarries and non-fiery mines comprises a charge of explosive in juxtaposition to a charge of a highly exothermic mixture of a finely divided metal or metal-silicon alloy or compound or both with ammonium nitrate, ammonium perchlorate, or an alkali metal perchlorate or mixtures of these. These charges may be side by side or one behind the other, or preferably the explosive charge is in the form of a core within a cylinder of the exothermic mixture. The explosive may be (a) a burning explosive within classes 1 or 2 of the British Home Office List of Authorized Explosives, or (b) a blasting explosive containing nitroglycerine or a nitric ester, or (c) an explosive consisting of a nitrocompound such as trinitrotoluene alone or mixed with oxidants and carbonaceous materials. The exothermic mixture may contain in addition to the substances mentioned above other substances such as alkali metal nitrates, charcoal, woodmeal or peat.
Patent GB-501147-A (GB)
Title: Improvements in brushes for plansifters
IPC: B07B1/52
Filed: 1937-09-04
Abstract: 501,147. Sifting -apparatus. NOVA DEL, Ltd., and HOBBS, E. M. Sept. 4, 1937, No. 24179. [Class 117] Relates to plansifter brushes which are caused to move unidirectionally around a central guide in a plansifter tray by the movement of the tray in combination with rearwardly inclined bristles engaging the sieve mesh, and consists, in providing the edge which lies adjacent to the guide with bristles or tufts which are mainly perpendicular thereto and the side which engages the outer wall of the sieve with inclined bristles. The Figure shows the application to a brush of substantially D-shape as described in Specification 353,145. The guiding edge bristles 6 are short and stiff relatively to the others and are preferably mounted in a strip 7 secured to the edge of the brush frame 3 which may be stamped from a hard composition. The guiding edge 5 may be straight, as shown, or slightly concave or convex. The bristles 4 on the curved side of the brush engage the outer wall of the sieve and are inclined.
Patent GB-499019-A (GB)
Title: Improvements relating to the protection of rooms or the interior of buildings or other confined spaces whether or not primarily intended for human habitation or occupation against harmful or undesirable external atmospheric influences
IPC: E06B7/23
Filed: 1937-07-17
Abstract: 499,019. Sealing doors and other openings. NEWTON, J. T. July 17, 1937, No.24189/38. Divided out of 499,035. [Class 20 (iii)] Doors, windows, &c. are hermetically sealed by inflatable tubing fitted between the doors &c. and their frames and simultaneously inflated through a valve actuated by an electric relay when all the doors &c. in the building are closed. As shown in Fig. 1, applied to a combined casement and fanlight window, the sealing- tubes 3 are fitted in channels 4 in the framing 5 and inflated through tubes 6 connected to a compressed-air supply 16, Fig. 4. In the open positions of the windows &c., the channels 4 are closed by spring-pressed plates 14 ; or, the channels may be covered by rubber strips which expand with the tubes 3 (on inflation of the latter) into the grooves 11 of the window &c. Fig. 4 shows means for automatically closing the windows &c., and inflating the sealing-tubes, through the medium of a manually-operated control. Each window &c. is linked to the piston 48 of a cylinder 49 which is supplied with compressed air from the source 16 and, after closure of all the windows &c., compressed air is led by piping 47 to the tubes 3. For indicating the closure of the windows &c., and the proper inflation of the sealing-tubes, a master-switch 54, associated with the valve 55 which controls the supply of compressed air to the cylinders 49, is arranged in a circuit comprising signal panels 56, 57 fitted with lamps 58, 58a, . . , 59, 59a ... Pairs of switches 61-62, 61-63 included in the circuits to the panels 56, 57 are opened, to extinguish the corresponding lamps, by the closing of the windows &c. and the inflation of the sealing-tubes. Specifications 498,992, 499,035, and 502,275 are referred to.
Patent GB-811525-A (GB)
Title: Improvements in or relating to fluid pressure operated disc brakes
Inventor: CHOUINGS LESLIE CYRIL
IPC: F42B33/02
Filed: 1956-08-07
Abstract: 811,525. Disc brakes. AUTOMOTIVE PRODUCTS CO. Ltd. Aug. 7, 1957 [Aug. 7, 1956], No. 24200/56. Class 103 (1). A fluid pressure-operated spot disc brake comprises a disc 10 mounted between two friction pads 25, and two cylinders 19, 21, one associated with each pad in which fluid pressure acts to press the pads against the disc, the axis of the cylinders being offset by a distance less than the internal radius of the cylinders along the circumference of a circle about the centre of disc 10. A trough-shaped carrier 13, 18 secured at 14 to a non-rotating part 16, 17, has a cylinder formed in each wall, the cylinders 19, 21 having axes equidistant from and parallel to the disc axis, the axis of cylin.- der 19 being ahead of the axis of cylinder 21, the direction of normal rotation being as shown by arrow 22, Fig. 1. A piston 27, in each cylinder, has a, flat end wall against backing plate 24 secured to the friction pad 24, and a disc 29, held by spring ring 32, closes each cylinder and carries a tube 34 which projects into piston 27; in each of two diametrically opposite, part circumferential slots 38 in tube 34, is located a rigid metal bar 39, a spring 40 mounted in tube 34 on projections 41 of the bars forces their ends against the internal wall of the piston 27, the bars, being slightly narrower than the slots 38, are urged against the outer edges of the slots by a spring 42 surrounding tube 34 between its flange 37 and the bars 39. In operation, fluid supplied to cylinder 21 via conduit 44, the cylinders 19, 21 being connected by conduit 43, moves the pistons 27 relative to discs 29, the bars 39 moving with the pistons due to frictional contact until they contact the inner edges of slots 38, in further movement the pistons slide relative to bars 39 and on brake release, pistons 27 are retracted by springs 42 and move until the bars 39 engage the outer edges of slots 38, the wear of pads 25 then having been compensated for. The off setting of the cylinder axis is such as to produce a twisting force on carrier 13 sufficient to balance the twisting force due to drag, so reducing deflection of the carrier under load and so vibrations and noise are reduced. The offset may slightly differ from this critical value to produce a slight twisting force on the disc tending to take up slack in the wheel bearings during braking.
Patent GB-771746-A (GB)
Title: Improvements in polymerization catalyst
IPC: B01J31/14
Filed: 1955-08-23
Abstract: Activated aluminium alkyls for use as polymerization catalysts for olefines are prepared by mixing a lead tetra-alkyl and aluminium ethyl sesquibromide under anhydrous conditions in an inert atmosphere, the sesquibromide being in molecular excess, heating to between 125 DEG  and 175 DEG  C. to complete reaction and to decompose unreacted lead tetra-alkyl and distilling off the reaction product.  1.05 to 2 mols. of aluminium ethyl sesquibromide may be used per mol. of lead tetra-alkyl.  The final distillation may be carried out under low pressure, and the distillate fractionated, if desired.  In an example, aluminium ethyl sesquibromide (prepared from ethyl bromide and aluminium by reaction in dry nitrogen) is reacted with lead tetraethyl under dry nitrogen.  The mixture is heated to 150 DEG  C., cooled and distilled under low pressure.  The distillate is further fractionated under low pressure.ALSO:A catalyst for the polymerization of olefines comprises an aluminium alkyl containing not more than about 5 per cent of bromine and of lead.
Patent GB-616537-A (GB)
Title: Improvements in electrodes and brushes for electric machines
IPC: H01R43/12
Filed: 1945-09-19
Abstract: The wearing properties of carbon brushes and electrodes, made from porous blocks of carbon which may or may not contain powdered metal, are improved by impregnating the block or the brushes made therefrom with superpolyamides.  The impregnation may be effected by immersing the blocks in molten superpolyamides or in their solutions in solvents.  The blocks may be submitted to vacuum prior to impregnation.  A metallic brush obtained by sintering copper and graphite is exposed to a vacuum of 10 mm. for 2 hours and then immersed under a pressure of 10 kgs. and at 80 DEG  C. in a solution comprising 300 parts of the interpolymer formed from 60 parts hexamethylenediammonium adipate and 40 parts aminocaproic acid, 100 parts ethyl alcohol, 100 parts benzyl alcohol, and 100 parts glycol chlorhydrin.  Alternatively, the brush is immersed in molten polyhexamethylene adipamide at 270 DEG  C. in an atmosphere of nitrogen.  The Specification as open to inspection under Sect. 91 states that linear polycondensates such as polyesters, polyurethanes and polyureas and interpolymers thereof may also be used as impregnants.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1241728-A (GB)
Title: Container closure
Inventor: HAEGGBOM ROLF
IPC: B65D45/20
Filed: 1969-05-13
Abstract: 1,241,728. Caps for bottles &c. R. HAGG. BOM. 13 May, 1969 [16 May, 1968], No. 24232/69. Heading B8T. A plastics container closure 3 has a rim 4 with a resilient flap 5 which has a folding section 6. The flap 5 is pressed upwards under the container rim 2 forcing the rim outwards, the closure 3 being held in position under the action of the resulting stresses. A projection or recess may be provided in the lower side of the container rim 2 for engagement with the closure flap 5, Fig. 2b (not shown), which may be apertured (at 11) or be provided with a bead for gripping.
Patent GB-1359001-A (GB)
Title: Apparatus for the manufacture of a mat of fibres of thermoplastic ma terial
IPC: D04H1/4226
Filed: 1971-04-19
Abstract: 1359001 Lap forming apparatus SAINTGOBAIN INDUSTRIES 19 April 1971 [29 April 1970 18 Sept 1970] 24235/71 Heading D1N A mat forming apparatus wherein thermoplastic material, e.g. glass, is extruded from a spinnerette 3 and attenuated by a gas to form fibres, comprises a sleeve 11 disposed below the attenuated device 9. The sleeve has generally planar side walls which converge in the direction of motion of the gas, the outlet cross sectional area of the sleeve being at least equal to the inlet cross sectional area. So that its slot-like outlet is transverse to the direction of movement of a moving receiving surface on which the fibres are formed into a mat. As described, the side walls of the sleeve are trapezoidal in shape and their lower longer edges are adjustable by screws 7 to vary the area of deposition of fibres on the receiving surface. A plurality of the spinneretes may be arranged over a single receiving surface. The sleeve can feed the fibres into a further fibre stream directing device which may be integral with, or separate from, the sleeve. A plurality of shaping devices may be arranged one above the other with air or steam being inducted or blown into the spaces between these devices. Movable deflectors may be arranged below the sleeves. Spray guns may be arranged downstream of the mat formation to ensure the fibres stick together.
Patent GB-486636-A (GB)
Title: Improved capsule for bottles, jars and the like
IPC: B65D41/42
Filed: 1937-09-04
Abstract: 486,636. Crown corks. PARIS, B. Sept. 4, 1937, No. 24240. Convention date, Sept, 8, 1936. [Class 125 (iii)] A crown cork has four cuts 2 .. 5, the space between the cuts 2 and 5 being less than half of the circumference of the cork and the distance between the middle cuts 3 and 4 being greater than that between the end pairs of cuts. The end cuts are deeper than those in the middle.
Patent GB-278875-A (GB)
Title: Improvements in or relating to transmission gears for motor vehicles
IPC: B60T7/12
Filed: 1926-10-01
Abstract: 278,875. Kilpatrick, E. W. R. Oct. 1, 1926. Brakes, arrangement and disposition of ; guarding against wrong movements, -Means for preventing unintentional backward movement comprise a clutch member B fixed on, or connected by, a spring coupling G to the driving shaft A, a stationary member C carrying normally-retracted sliding dogs E, automatic means for projecting the sliding dogs into engagement with dogs D on the shaft member B when the vehicle starts to run back, and further means for positively retracting the sliding dogs when the gear lever is moved to the reverse position. The dogs E are projected by springs g and are held back in the inactive position when required by a sliding collar H and bell-crank levers p pivoted to a fixed plate K and connected to a sliding collar P which is operated by the gear lever when the gears are moved to the reverse position.
Patent GB-1028255-A (GB)
Title: Improvements in weft selector units for shuttleless weaving looms
IPC: D03D47/00
Filed: 1964-06-12
Abstract: 1,028,255. Weft pattern mechanism, shuttleless looms. BRELIC INTERNATIONAL Inc. June 12,1964 [June 13, 1963], No. 24421/64. Heading D1E. Selected weft feeders 14 are lowered against the action of springs 19 by electro-magnets 16, 17. As the weft is pulled through the shed its tension moves the guide arm 13 away from a contact 24, Figs. 2, 3 (not shown). If the weft breaks the guide arm abuts the contact 24 and the loom is stopped. If no thread guide is lowered contacts 34, 36 remain closed and stop the loom.
Patent GB-462243-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/48
Filed: 1935-09-02
Abstract: 462,243. Cathode-ray tubes. BARASCH, H. P. Sept. 2, 1935, No. 24444. [Class 39 (i)] In cathode-ray tubes with a cathode c having a flat surface at right angles to the axis of an electrode system which includes an apertured electrode g adjacent the cathode c, the cathode or the system is rotatably mounted about an axis parallel to, and spaced from, the axis of the system so that the operative part of the cathode surface can be changed. As shown, an insulating body i carrying the cathode c and containing a heater therefor is rotatably carried in an extension g<3> of the fixed electrode g serving as control electrode. Clamps p<1>, p2 with interposed insulation j<1> . . . j<3> hold the parts g, g<3> and a first anode a together and are mounted on rods m<1>, m<2>. A second anode b is arranged at the top of the anode a. The cathode c is rotated from outside the tube by means of magnetic pieces w<1>, w<2> on arms kl, k2 or by shaking, a single arm with a weight at its end being then provided, or by means of a ground joint in the wall or foot s of the tube. Instead of coating the cathode uniformly with oxide, separate oxide spots may be provided and brought into operation successively. These spots may be of different size or material and may be applied after assembly of the system through the apertures in the electrodes a, g. Small recesses may be provided in the cathode surface to receive the oxide. The pieces w<1>, w<2> may carry getter evaporated by highfrequency heating. In a modification, the circular groove f in the body i engaged by a finger on the part g<3> is replaced by a spiral groove so that rotation of the cathode also adjusts its distance from the electrode g. In other modifications, the part g<3> is insulated from the electrode g and receives the cathode c which contains or is surrounded by an insulated heater.
Patent GB-587260-A (GB)
Title: Improvements in drum head tensioning devices
IPC: G10D13/02
Filed: 1944-12-07
Abstract: 587,260. Drums. DEANS, C. F., and BUSBY, A. E. Dec. 7, 1944, No. 24519. [Class 88 (ii)] A drum head tensioning device has jaws 3 which grip the drum hoop and which are carried on threaded spindles 5 engaging in diametrically threaded bushes 10 pivotally mounted within a yoke 9, the spindles and bushes having a degree of angular freedom in the yoke whereby'the pull on the jaws is evenly distributed over the jaw head. As shown, the threaded end 7 of each spindle 5 passes into a hole 8 of the yoke with some clearance, thus providing the degree of freedom, and the bush 10 may also be slightly smaller than the aperture in which it is mounted. The yoke is extended to mask the threaded ends of the spindles.
Patent GB-335017-A (GB)
Title: Improvements in and relating to saucepans and the like
IPC: A47J36/12
Filed: 1929-08-12
Abstract: 335,017. O'Brien, T., and Dewar, J. Aug. 12, 1929. Lids.-In saucepan &c. lid-raising means of the kind comprising a lever pivotally mounted on the vessel and actuated either directly or by movement of a rod 15 extending through the handle, the lid is secured to the long arm 19 of the lever by being furnished with a metal strap taking thereover and formed with one or more inwardlyextending projections adapted to engage spaced apertures formed in the end of the lever. In Figs. 1 and 2 the end of the lever lies flat on the lid under the strap 31 with the projection 33, and in Fig. 3 perpendicular thereto under the strap 21 provided with projections 24 on one or both sides. A saddle piece 34, Fig. 5, pivotally connected by a stem working in a slot in the handle to the rod 15, may replace the usual knob 16. The rim of the lid is shown provided with vent apertures 35.