baber/WOPTO huggingface dataset:
Patent GB-867871-A (GB)
Title: Improvements in or relating to the preparation of elemental silicon
Inventor: OLSON CARL MARCUS
IPC: C01B33/08
Filed: 1957-07-12
Abstract: Silicon halides are purified by contacting the halide in the vapour state with silicon at 850 DEG C. to 925 DEG C.  The silicon should be as pure as possible, and the halide preferably remains in contact with the silicon for 0.1 to 10 seconds.  The silicon halide may be prepurified by passing the vapour through a bed of fused silica rings at about 1000 DEG C., condensing the vapour, adding water, preferably 0.01 to 10% mols, allowing the mixture to stand, distilling it, and again vaporizing the halide prior to passing it over the silicon by dropping it on to fused silica chips maintained at 600-700 DEG C. All apparatus is preferably constructed of fused silica with welded joints, Silicon halides referred to include disilicon hexachloride, silicon tetrabromide, silicon tetraiodide, and especially silicon tetrachloride.  The silicon halide thus purified may be converted to elemental silicon by reducing it with elemental zinc or cadmium in the vapour state.  The zinc or cadmium vapour is preferably purified prior to the reduction by passing it through a bed of heated silicon at 800-1100 DEG C. in a similar fashion to that employed for purifying the halide.  Preferably the reactants are passed p directly from the purifying steps to an elongated reactor, preferably maintained at a temperature above the boiling points of the reactants and by-products, and below the melting point of the silicon, for example about 950 or 1000 DEG C.  A slight excess of the halide may be maintained.  Crystalline silicon is deposited, and the by-product metal halide vapours and excess silicon halide vapours are removed and recovered.  When the reactor is full of silicon the flow of metal vapour is stopped and the flow of halide continued for some time. The flow of halide is then stopped and the silicon product is then cooled with pinging by an inert gas, for example nitrogen.ALSO:Zinc or cadmium of high purity may be obtained by contacting the metal vapour with silicon at 800-1100 DEG C., preferably for a period of 0.1 to 10 seconds.  The silicon should be as pure as possible.  The thus purified metal vapour is used for the reduction of purified silicon halides to give pure silicon (see Group III).
Patent GB-1506109-A (GB)
Title: Trimming apparatus for container bodies
IPC: B23D31/00
Filed: 1976-05-28
Abstract: 1506109 Trimming cans; making a container NATIONAL CAN CORP 28 May 1976 22360/76 Headings B3W and B3A Cans are fed to a mandrel 34 carrying a cutter 36 for trimming the free edge of the can by a supply means such as a star wheel 50 which aligns a can with the mandrel and by a plunger 52 guided on rods 54 for axial movement to and from the mandrel. A loading shaft 60 rotatable about a fixed axis is rigid with a radial arm 64 which is connected by a link 66 to the plunger 52. A cam surface 76 on a member 78 rotatable with a tool shaft 18, carrying a cutting segment 44 for co-operation with the mandrel cutter 36, engages a follower roller (74), Fig. 3 (not shown), on the lower end of the shaft 60 for rotating the shaft through an angle less than 45 degrees, preferably 10 degrees, to oscillate the arm 64 and thus reciprocate the plunger 52. The tool shaft 18 is driven by a motor 20 and drives a shaft 16 carrying the mandrel 34 at the same linear speed via gears 22-26. The plunger 52 has an outer portion rotatable on the body of the plunger for rotation with the can during trimming. The wheel 42, fixed to the tool shaft 18, which carries the cutting segment 44 carries adjacent the segment a corrugating and severing member 46 for co-operation with a corrugating roller 40 secured to the shaft 16 adjacent the cutter 36. In operation, the plunger feeds a can from the star wheel on to the mandrel and holds it there during a dwell of the can while the cutters 36, 44 trim a scrap ring from the can. The ring is severed by being tensioned between the first two teeth of the corrugating roll 40 and a tooth of the corrugating member 46 and then corrugated. As the plunger is withdrawn, the trimmed can is returned to the star wheel by pressurized air supplied to the mandrel.
Patent GB-317439-A (GB)
Title: Improvements in block printing machines for printing floor coverings and the like
IPC: B41F1/10
Filed: 1929-07-20
Abstract: 317,439. Armstrong Cork Co., (Assig. nees of Rottmund, F. G.). Aug. 16, 1928, [Convention date]. Platen machines.-In a block-printing machine for printing marbled effects on linoleum of the kind in which a multicolour design is painted in squares and is mottled by pressure by a plain printing-block after the coloured impression has been produced, the mottling is produced by smooth blocks 10, Figs. 5 and 8, on a block 9 which is arranged near the last colour block 4, and is similarly operated. To prevent adhesion of the blocks 10 to the linoleum, which is fed forward intermittently by pins 11<a> on bands 11, a series of spring-depressed pins 16, which pass through the block 9, act on the unprinted parts of the linoleum and press it away from the blocks 10 as block 9 rises. In order to keep the blocks 10 clean, a taut wire 23, carried adjustably by posts 22 of a carriage 20, is reciprocated across the faces of the blocks 10 by means of links 7 similar to those which actuate the ink-applying rollers 6 for the blocks 4. To prevent the pins 16 from interfering with the passage of the wire 23, they are automatically raised above the level of the blocks 10 by means of a lifting plate 13 which is raised in a frame 30 by levers 33 actuated by engagement with rails 36 as the head 8 carrying block 9 is raised.
Patent GB-993718-A (GB)
Title: A process for the manufacture of terpolymers of vinylidene cyanide
IPC: C08F22/34
Filed: 1962-06-08
Abstract: Terpolymers in which the monomers are arranged in alternating sequence are prepared by polymerizing vinylidene cyanide, a vinyl or vinylidene monomer (other than vinylidene cyanide) and a vinyl sulphonic or phosphonic acid or halide thereof under the action of a free radical polymerization initiator in an inert anhydrous organic solvent that prevents an ionic homopolymerization of the vinylidene cyanide.  The vinyl or vinylidene monomer may be vinyl acetate.  The terpolymer may comprise 40-60 mol. per cent of the cyanide, 60-40 mol. per cent of the vinyl or vinylidene monomer and less than 10 mol. per cent of the acid or halide which may be an acid fluoride or chloride.  The solvent may be glacial acetic acid.  The weight ratio of monomer mixture to solvent may be 1: 0.3-14 and the vinyl (or vinylidene) monomer may be used in excess. The polymerization initiator may be azoisobutyric acid dinitrile or 2: 4-dichlorobenzoyl peroxide.  The terpolymer may be formed into filaments, fibres and films and dyed.
Patent GB-316095-A (GB)
Title: Improvements in and relating to electrical discharge devices
IPC: H01J19/36
Filed: 1929-07-22
Abstract: 316,095. British Thomson-Houston Co., Ltd., (Assignees of Brown, H. W.). July 20, 1928, [Convention date]. Vacuum tubes.-In a discharge device having an anode 2 provided with a cooling jacket 6, contact members 17 mounted in the jacket are slidable radially to exert an increasing pressure on a flange 5 on the anode 2 and are separately adjustable inwardly to allow the anode to be secured rin the jacket without twisting the leading wires. A gasket 9 is interposed between the flange 5 and a flange 8 on a member 7 carried by the jacket, the member 7 protecting tlhe anode seal from corona, and arc discharges. Two diametrically opposed enlargements in the shield forming sockets 10, 11, are bored and screwed at the upper end to receive members 13 provided with lugs 14 carrying operating handles 15. Housed in each member 13 is a bolt 16 screwed and pinned to a clamp 17 which is prevented from rotation by a pin 19 passing through the socket and is provided with a bevelled face engaging the flange 5. Rotation of a member 13 causes the clamp 17 to advance and lock the anode to the cooling jacket, tihe bevelled face of the clamp making a sliding contact with the flange 5. To prevent vibration, the device is resiliently mounted on rigid supports 23, 24. Above and below the supports 23, 24 are mounted circular flanged plates 26, 27 carrying felt discs 28, 29 supporting pairs of flanged discs 30, 31 and 32, 33. Springs 34, 35 are situated between the disc 30 and the lower face of the shield 7, and the disc 33 and a flanged collar 36 supported by a clamping band 37 on the jacket 6.
Patent GB-1491127-A (GB)
Title: Internal combustion engine and method for reducing exhaust emissions from internal combustion engines
IPC: F02B19/10
Filed: 1975-05-23
Abstract: 1491127 Exhaust passage liners FORD MOTOR CO Ltd 23 May 1975 [2 Aug 1974] 22606/75 Heading F1B The exhaust passage 16 of an I.C. engine, supplied with rich and lean mixtures and having a thermal reactor 28, has means 23 subdividing at least the outer peripheral zone of the passage so that laminar flow occurs in the peripheral zone of said passage so as to reduce heat loss from the exhaust. The means may be a liner comprising a plurality of concentric metal or ceramic sleeves 37, 38, Fig. 3, spaced by webs 39. Alternatively a honeycomb structure or spiral of parallel structure of sheets separated by corrugations, Figs. 4 to 6 (not shown), may be used. The engine may be arranged as in Fig. 1 to induct a weak mixture from carburetter 14 which is locally reinforced by injector 7 or a pre-combustion chamber may be provided. The engine may be of'the rotary type, Fig. 9, having a rotor formed with two recesses 80, 81 to define with the stator two combustion chambers. Expansion of mixture in recess 81, but not in  recess 80, occurs until the point of ignition is reached which is stated to give rise to the operating condition of the pre-combustion chamber engine. Alternatively pre-combustion chamber can be provided each side of the rotor 100, 101, Fig. 13 (not shown), fed by direct injection with rich mixture.
Patent GB-982241-A (GB)
Title: A process for the purification of interferon
Inventor: BURKE DEREK CLISSOLD
IPC: C07K14/555
Filed: 1960-06-28
Abstract: Interferon is purified by concentrating an aqueous inorganic salt solution of interferon by pressure dialysis, subjecting the concentrate to chromatography on sulphomethylcellulose at pH 2 with an increasing chloride gradient and subjecting the purified material so obtained to one or more stages of chromatography on diethylaminoethylcellulose at pH of between 5 and 6 with an increasing phosphate gradient and recovering a fraction containing interferon of increased purity and concentration.  The six stage purification of the example consists of (a) ammonium sulphate precipitation followed by pressure dialysis, (b) chromatography on sulphomethylcellulose at pH 2,0, (c) concentration and adjustment to pH 6,6, (d) chromatography on DEAE cellulose at pH 6,6, (e) adjustment to pH 4,5 and chromatography on DEAE cellulose at pH 4,5, (f) adjustment to pH 5,8 and chromatography on DEAE cellulose at pH 5,8.  Step (d) may be carried out at pH 6,g to 8,0.
Patent GB-183376-A (GB)
Title: Improvements in or relating to self-lift ploughs
IPC: A01B63/28
Filed: 1921-08-27
Abstract: 183,376. Roberts, T. J. E. Aug. 27, 1921. Tines, mounting adjustably. - A sub-soiling-tine h is pivotally mounted on the beam c of a plough as described in Specification 155,322 and is connected by a link g to an arm f pivoted on the cranked shaft c carrying the supporting wheel b of the plough so that when the wheel b is depressed to raise the shares the arm f is engaged by a projection f<1> on the shaft c and the tine h is swung about its pivot. A second link g<1>, secured to the arm f. provides means for swinging the tine h into inoperative position, leaving the shares j in working position. The tine h can be vertically adjusted in a box k having a sleeve q projecting from one side and pivoting in a recess in a plate m clamped on the beam e. A bolt r holds the box k in position. In a modification, the tine is adjusted by the bolt passing through the desired one of a series of holes in its shaft and then through the box, the plate m, and the beam e. A stop y extends from the plate m to take the thrust on the tine.
Patent GB-207587-A (GB)
Title: Device for preventing improper removal of motor cars and cycles
IPC: B60R25/04
Filed: 1923-08-21
Abstract: 207,587. Jensen, O. V. Aug. 21, 1923. Theft and like alarms. - For preventing improper removal of motor - cars and cycles, communication i s established between one or more sirens or whistles and the exhaust pipe, so that an alaxm is given if the car is driven away by an unauthorised person. A s shown, a strong case 1, mounted on the exhaust pipe 2, contains two sirens 9, 10. A valve 3 in the exhaust pipe 2 is pressed upward by a spring 4, and is controlled by a rod 5 which is operated by hand or foot or by a system of levers from the driver's position. When the rod 5 is pressed down, the valve 3 closes the exhaust pipe and opens the siren apertures 6, the rod 5 being automatically locked in this position by the catch of a lock 7 entering a notch 8 on the rod. The apparatus can only return to its initial position when the red 5 is unlocked by a key, the rod being lifted by the spring 4 or by hand. By means of the connecting rods 12, 13 mounted on the rod 5, the sirens are rendered inoperative when the rod is in its raised position.
Patent GB-430066-A (GB)
Title: Improvements in and relating to facias for shop fronts and the like
IPC: G09F13/00
Filed: 1934-08-07
Abstract: 430,066. Shop fronts; signs. HOBSON, C. W., 9, Park Place, St. James's Street, London. Aug. 7, 1934, No. 22843. [Class 3 (ii)] [See also Group X] A shop or like front is provided with reflecting and corrugated facings c, d, above and below the window a, which are illuminated by concealed lamps e, f. The facings are composed of polished or plated metal or coated with a lustrous finishing material. Sign lettering h is provided so as to show clearly in silhouette against the facing c.
Patent GB-1509427-A (GB)
Title: Electrical shaft system
IPC: B21B37/00
Filed: 1975-05-23
Abstract: 1509427 Control System WESTING- HOUSE ELECTRIC CORP 23 May 1975 [22 Oct 1974] 22846/75 Heading G3N A master and a slave motor 1, 2 are respectively connected to mechanisms 3, 4, e.g. in opposite screwdown ends of a workroll of a steel rolling mill Fig. 5, (not shown). The motors 1,2 are driven in synchronism. Position regulator 19 controls motor 1 in response to the difference between a reference 23 and the motor actual position measured by unit 15. This actual position is used as the reference for the slave motor by position regulator 20 which receives the slave motor actual position from unit 16. The outputs of the two regulators are received by summer 30 which controls slave motor 2.
Patent GB-583696-A (GB)
Title: Improvements in or relating to apparatus for feeding cigarettes and other articles of similar shape
IPC: B65B19/10
Filed: 1944-11-17
Abstract: 583,696. Packing. PEARMAN, A., and MOLINS MACHINE CO., Ltd. Nov. 17, 1944, No. 22884. [Class 94 (i)] [Also in Group XXX] In apparatus for feeding cigarettes and other articles of similar shape in batches from a hopper by a pusher, each batch being composed of a plurality of superimposed rows containing unequal numbers of articles, e.g., three rows containing seven, six and seven, respectively, the bottom of the hopper is divided into a number of compartments equal in number to the maximum number of articles in a row plus one, the articles being permitted to fall to the bottom of all the compartments except in the one next to the end in which a stop is provided at a distance of two cigarette diameter from the bottom, and a side pusher is provided to move an article from the bottom of the end compartment into the adjacent compartment. The partition 10, Fig. 1, which separates the end compartment from its neighbour, is provided with a stop 11 and terminates at a distance above the bed 7 slightly in excess of the diameter of an article. A side pusher 13 transfers an article from the end compartment to the adjacent one. The pusher is pivoted to an arm 14 and is constrained to move in a straight line by a roller 18. The arm is fast on a spindle 15, which is mounted in a bracket 16 and has an arm 19 fast on one end. The arm 19 is held in contact with a cam rod 21 by a spring 20. The rod is reciprocated by a cam 22 fast on the spindle 23 which carries the driving sprockets 24 for the chains 9 carrying the main pusher 8. During the transfer of a batch the articles in the middle row are moved laterally with respect to the top and bottom rows by contact either with tapering guide strips or with rotary non-circular members 28, Fig. 4.
Patent GB-1108126-A (GB)
Title: Dispensing valves for containers
Inventor: SCHOLLE WILLIAM RAYMOND
IPC: B67D3/04
Filed: 1966-05-23
Abstract: 1,108,126. Valves. SCHOLLE CONTAINER CORPORATION. 23 May, 1966, No. 22901/66. Heading F2V. A thermoplastic dispensing valve for a container comprising a paperboard box 11 and a 'flexible liner 13, consists of a tubular member 15 having a flange 16 heat sealed to the flexible liner, and a second tubular member 19 formed with an aperture 23 and which slides in the member 15 to dispense the container contents. Outward movement of the member 19 is limited by shoulders 26, 27. The members are yieldably retained in telescopic engagement by a flexible band (29), Figs. 3, 7 (not shown), passing over the member 19 and connected to a pair of diametrically opposed lugs 30. In Figs. 11- 13 (not shown), a spring (34) wound around the member (15) and terminating on the end of the member (19) is used. In Figs. 14-16 (not shown), a spring clip (39) is used. The member 19 may be disposed outside the member 15, Figs. 10, 13 (not shown). Reference has been directed by the Comptroller to Specification 1,016,018.
Patent GB-222507-A (GB)
Title: Improvements in or relating to electric condensers
IPC: H04R19/00
Filed: 1924-09-29
Abstract: 222,507. Meusser, H. Sept. 20, 1924. Condenser telephones.-An acoustically active condenser comprises a sound-receiving or transmitting member m arranged transversely to, and in direct or indirect mechanical contact with, condenser elements consisting of metal foils a, b alternately connected to conductors d, e, and elasticinsulating layers c separating the foils. The member m mav be made to contact with the condenser at several points by bending the layers of foil and dielectric to form undulations. The Specification as open to inspection under Sect. 91 (3) (a) comprises also means for obtaining a voltage transformation by employing two or more condensers in close proximity. In one such arrangement, Fig. 5 (Cancelled), the outer condensers I, III are electrically connected to form a primary circuit, while the inner condenser II forms a secondary circuit. This subject-matterdoes nob appear in the Specification as accepted-
Patent GB-371725-A (GB)
Title: Combination resilient mallet and metal hammer
IPC: B25D1/02
Filed: 1931-08-14
Abstract: 371,725. Hammers and mallets. WIDMAN, J., 5702, South Broadway, Los Angeles, U.S.A. Aug. 14, 1931, No. 22943. [Class 61 (ii).] A combined hammer and mallet comprises a metal head 14, and a head 19 of rubber, pressed leather, fibre, rawhide, or other resilient material, retained on a projection 15 by corrugations 16 or a screw thread.
Patent GB-838432-A (GB)
Title: Improvements in electric rectifiers employing semi-conductors
Inventor: NOON HARRY ROY
IPC: H01L23/36
Filed: 1955-08-09
Abstract: 838,432. Semi-conductor devices. BRITISH THOMSON-HOUSTON CO. Ltd. July 20, 1956 [Aug. 9, 1955], No. 22951/55. Class 37. A semi-conductor rectifying element is mounted on a base member which is secured to a closure member to form a hermetically-sealed capsule enclosing the rectifying element. An insulated conductor is sealed through the base member and is connected to the face of the elements remote from the base member and a heatradiating member is arranged to have good thermal contacts with the base member. A germanium or silicon element 5 (Fig. 1) is secured to a copper base member 4 through which a conductor 6 is insulatingly sealed by means of a glass-to-metal seal. The conductor 6 is connected to a blob of indium fused or to the germanium or silicon elements. A cap 2 with a radiating flange 1 is cold-welded to the base member 4 and a collar 9 surrounds the cap. In another embodiment, Fig. 2 (not shown), the cap has no flange and is forced into a flanged ring provided with a collar.
Patent GB-747636-A (GB)
Title: Machine for reducing the thickness of work pieces of rectangular cross-section
Inventor: SINGER FRITZ
IPC: B21B13/20
Filed: 1953-08-20
Abstract: 747,636. Rolling; forging. TUBE REDUCING CORPORATION. Aug. 20, 1953, No. 22966/53. Class 83 (4). In a machine for reducing the thickness of rectangular section metal workpieces tools are arranged on a roller for consecutive engagement with the work which is fed a section at a time controlled by the movement of the tools. Rolling.-In one example the tools 9, Fig. 2, are planet rollers carried by a principal roller 5 which is adjustable by screw-downs 32. The work W is fed over a fixed platen 111 by intergeared rolls 62, 63 which are intermittently rotated by oscillating freewheel clutches 66. Levers 68 carrying a roller 70 engaged by the planet rollers 9 and yieldingly pressed against the rollers 9 by a spring 71 oscillate the clutches 66 through links 67. An adjustable screw stop 73 limits the return movement of the arms 68 and thereby controls the rate of feed. The rollers 9 are arranged in bushings 13, Fig. 4, which are yieldingly held by bolts 17 and springs 18 in rotatable rings 15 at each end of the rollers 5. In a modification the work W, Fig. 6, is backed by a second set of planetary rolls 10 and both the rate of feed of the work and the pass are varied during operation so that tapered work may be produced. The principal rolls 5, 6 are intergeared in phase by pinions 25, 26 located by links 29, 30, 31 to permit pass adjustment. The feed of the work is made variable by the use of a stop 78 limiting the movements of the reciprocating arm 68 and adjustable in position by a cam 80 during the passage of the work. A push-rod 85 actuated by the rollers 10 through a roller 86 and adjustably located by nuts 87 controls the rotation of the cam 80 through a second oscillating free-wheel mechanism 84. The pass adjustment is varied by screw-down 32 driven from a shaft 35 through bevel gears 33 &c. and rotated either by a hand wheel 37 (not shown) or by one of a pair of oppositely rotating free-wheel mechanism 45. Either mechanism is brought into operation by a dog clutch 49 and lever 53 (not shown) so that the pass may be progressively increased or decreased, the mechanisms being rotated in opposite directions by opposed arms 40 having rollers 41 intermittently engaged by the rollers 9 to oscillate the free-wheel mechanism 45 through links 43. Manually adjusted screw stops 57 control the amount of movement of the arms 40 and thereby the rate at which the pass is increased or decreased. Forging.-In a further example the rolls 9 are replaced by stretching tools d, Fig. 1, mounted on a carrier c. The work W is supported by a counter tool e adjustable in vertical guides f by a screw down g and is intermittently fed by rollers k controlled in a similar manner to the example of Fig. 2.