baber/WOPTO huggingface dataset:
Patent GB-658689-A (GB)
Title: Improvements in the manufacture of archery targets
IPC: F41J3/00
Filed: 1949-03-16
Abstract: 658,689. Lap-forming apparatus. JOYCE, M. L. March 16, 1949, No. 7238. [Class 120(i)] [Also in Group XV] An archery target is made by winding slivers of straw or the like under radial pressure of an endless belt 34 and between two circular cheek plates 1. 2, the completed form being stitched through slots 29 in the plates 1. 2 which are then separated and the target removed. Belt 34 is automatically tensioned and on its lower run passes through an open-ended feed trough 42 into which straw slivers are fed by hand to lie longitudinally. A core boss 33 of straw is first formed and inserted between the parted plates 1, 2 which are then brought together by means of a manually operated cam device 16, 19 (not shown), pins 32 being driven into the ends of the core which is thus locked in position. As the plate-boss assembly is rotatably driven by a motor 24, straw slivers fed from the trough 42 are wound on to the core, radial compression being exerted .by that portion of belt 34 which runs under roller 46. When the diameter of the target has reached one of the sets of apertures 30 pins 31 are passed through under the belt 34, the cam 16 is operated to force cheek plate 2 inwards, and the straw mass is then stitched through slots 29 in the cheek plates. The completed target is released by allowing plate 2 to slide outwards, pins 32 being freed from the core portions. Supplementary clamping, Fig. 7 (not shown), of the cheek plate segments may be used when stitching. The two sets of pin receiving apertures 30 enable target centres or annular outer portions only to be made.
Patent GB-509168-A (GB)
Title: Improvements in hardness testing machines
IPC: G01N3/42
Filed: 1938-03-14
Abstract: 509,168. Testing hardness of materials. SMITH, R. L. H. March 14, 1938, Nos. 7926 and 20053. [Class 106 (ii)] The machine accommodates at least two specimens simultaneously but independently, and has one set of indenting mechanism, one set of observing mechanism and a duplicate set of at least a part of one of these mechanism so that an indented specimen may be observed while the other is being indented.' Two anvils 2, 3 are mounted in a substantial base 1 and are screwed to engage nuts 5 by which they are raised and lowered. A gear 7 turned by a hand wheel 6 has gearing with it a pinion 9 which may be swung by a handle 8 to engage either of the gear-wheels 5. The indenting and observing mechanisms are mounted on a swinging arm or carriage 10 journalled at a collar 11 on the base 1 and guided between stops at the other end on a flange 12 of the base. The arm 10 has indenting mechanism on its centre line comprising a lever 13 pivoted at 14 with a balance weight 15 at the short arm and a rod 16 at the end of the long arm to receive weights, this rod passing through the collar 11 with ample clearance. The indentor is shown conventionally as a detached point 17 and is mounted in the usual manner and comprises a diamond cut to the standard square pyramid shape. The lever 13 has an elbow adapted to be supported on a sliding plunger 18 resting on a spiral cam 19 which when turned clockwise gradually withdraws the support and allows the indentor to make an impression and after a time is reversed to take the load off the indentor smoothly. The arm carries two identical microscopes 20, 21, of which one 21 is described. Although the impression may be viewed through an eyepiece 22 it is preferred to throw an image of the impression on to a screen. Opposite facets of the impression are illuminated by two sources of light 27 and the image reflected by a prism 24 through a lens 25 on to a mirror 26 and hence to screen 23. The arm 10 is swung laterally so that an impression is made while the immediately preceding impression is viewed and measured.
Patent GB-680247-A (GB)
Title: Improvements in stranded wire ropes
IPC: C08G69/20
Filed: 1950-03-24
Abstract: 680,247. Wire ropes. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. March 24, 1950 [March 26, 1949], No. 7395/50. Class 109. In a stranded wire rope, particularly for use with lifts, &c. wherein the rope passes over a pulley &c., having a core of fibrous material such as hemp 1 covered with a helically wound layer supporting the outside strands 4 of the rope, together with spacer wires 3 inserted between the outside strands 4 to prevent the strands from coming into contact with each other when the rope is bent, the supporting layer consists of steel wires 2 of circular cross-section having the same pitch as the outside strands. Specification 195,713, [Class 109], is referred to.
Patent GB-463589-A (GB)
Title: A method of imparting decorative finishes to articles
IPC: B41M3/06
Filed: 1936-03-12
Abstract: A lustre material for producing decorative surfaces is applied between or as part of ground coats, design traceries, or finishing coats of lacquer and comprises comminuted fishscale, mercurous, stannous, bismuth or antimony chloride, lead or other iodides, barium hyposulphite, or other salts, together with microscopic crystals of metallic salts, or metal or mica flakes suspended in a nitrocellulose lacquer which may contain transparent dyes. Specification 448,003, [Group XVI], is referred to.
Patent GB-1260162-A (GB)
Title: Improvements in or relating to alumina reduction cell operation
IPC: C25C3/20
Filed: 1969-02-11
Abstract: 1,260,162. Automatic concentration control. KAISER ALUMINUM & CHEMICAL CORP. Feb. 11, 1969 [Feb.23, 1968], No. 7437/69. Heading G3R. [Also in Division C7] A measurement of alumina concentration in an alumina reduction cell is derived for control purposes from two different sets of corresponding values of cell current and voltage. In Fig. 3, a steel sheel 1, having an insulating layer 12 e.g. of alumina, bauxite, clay, aluminium silicate or brick and a lining 14 e. g. of carbon, alumina, silicon carbide or silicon nitrate, contains a pool of molten aluminium 16 and a body of molten electrolyte 18. Carbon anodes 20 dipping into the electrolyte are adjustable vertically by a pneumatic actuator 36 and cathodes 30 are inserted in lining 14. Several cells are supplied in series through a variable controller 32 which may be a rheostat, tapped transformer or saturable reactor. Under the control of a digital computer 40, controller 32 is periodically varied and values of cell resistance and back e. m. f. computed from sets of measured values of cell current and voltage. When the computed quantity indicates that the concentration is below a predetermined value means are operated to break the top crust 22 and a quantity of alumina is added by operation of a valve 24. Instead of controller 32 the current may be periodically varied by the effect of another intermittent load, e. g. a rolling mill, supplied from the same source or by allowing the concentration of each cell in turn to get very low.
Patent GB-349662-A (GB)
Title: Improvements in and relating to jacquards for looms for weaving
IPC: D03C3/24
Filed: 1930-03-07
Abstract: 349,662. Jacquards. GREENWOOD & SONS, Ltd., F., Trafalgar Street, Rochdale, and WRIGLEY, H., 1, Oxford Cottages, Healey, near Rochdale. March 7, 1930, No. 7461. [Class 142 (i).] The guides A for the selector pins p in a carpet loom jacquard are parts of the bar itself B, e.g. stamped out, instead of being in a separate piece of metal attached to the bar. The pins p may be frictionally held by spring clips S and their motion limited by cross pins c<1>, by slitting the ends at c and opening them out, or by expanding the pin edge at p<2>.
Patent GB-958706-A (GB)
Title: Improvements relating to tubular joints and their manufacture
Inventor: SHOEBOTHAM CHARLES CECIL
IPC: F16B7/18
Filed: 1962-02-27
Abstract: 958,706. Furniture joints. CHARLES SHOEBOTHAM Ltd. Feb. 25, 1963 [Feb. 27, 1962], No. 7526/62. Heading A4W. [Also in Division F2] A joint, for example, for furniture, between two tubes a, a<SP>1</SP> at right angles to one another includes a socket piece c of a plastic, and adapted to receive or partially receive one tube a and shouldered or reduced at c<SP>2</SP> to receive the tube a at right angles thereto, the socket piece being axially drilled for the reception of a fastening screw b which passes through the tube a and is engaged by the screw-thread thereof with a dished washer d. The latter, upon rotation of the screw, is flattened and expanded laterally on to the wall of the tube a<SP>1</SP> to secure that tube and the socket piece tightly against the tube a.
Patent GB-215900-A (GB)
Title: Improvements in and relating to the driving of camshafts of internal combustion engines
IPC: F01L1/10
Filed: 1923-03-15
Abstract: 215,900. Thomas, J. G. P. March 15, 1923. Valve gear. - In driving-gear for cam shafts comprising two cranks or eccentrics 5, 6 on the half-time shaft connected by rods 7, 8 to similar cranks or eccentrics on the cam shaft 9, for example as described in Specification 168,546, the gear wheel 3 on the halftime shaft is arranged between the rods 7, 8 and carries a weight 12 to balance the connecting-rods. A second cam shaft 20 may be driven from the shaft 9 by gearing 13, 14 or by other cranks or eccentrics on the rods 7, 8. In the latter case, the upper cam shaft need not be carried in bearings.
Patent GB-471099-A (GB)
Title: Improvements in and relating to the manufacture of electric lamps
IPC: H01J9/34
Filed: 1937-03-15
Abstract: 471,099. Securing bases to electric incandescent lamp bulbs. BRITISH THOMSON-HOUSTON CO., Ltd. March 15, 1937, No. 7546. Convention date, March 13, 1936. [Class 39 (ii)] In connecting an electric lamp bulb 10 containing a filament 16 to a base 20 which has an interna diameter slightly large than that of the bulb neck 11, the base, provided with a ring 26 of cement on the inside thereof, is placec over the neck of the bulb and the bulb is adjustec relatively to the base unti the light source is definitely located with respect to a portion of the base, whereupon the base is heated to bake the cement therein while maintaining the end portion of the base adjacent the bulb relatively cool to harden the cement and prevent its flowing out through the end of the base. In the example, the metal base shell 21 is provided with an outwardly turned integral flange 25 which, during the capping, is located within an annular seating 32 in a massive metal supporting-plate 30 and held in position by one or more radially movable spring members 33. During the baking operation the cement 26 expands and tends to flow down between the base shell 21 and bulb neck 11, but is hardened as it approaches the end of the base shell, which is kept cool by the comparatively heavy metal plate 30 in contact with the flange 25. For accurately locating the base, the bulb 10 is held by vacuum in a movable chuck 28, the internal diameter of the base shell 21 being slightly larger than that of the reduced neck portion of the bulb to permit rocking and shifting of the bulb in the base shell while current is passed through the leading-in wires 14, 15 to project an image or images of the filament 16 upon a screen. After the cement has hardened, the leading-in wires 14, 15 are trimmed and soldered to the base shell 21 and eyelet 24 respectively. One leading-in wire 15 is preferably extended at 18 into a hollow tip 19 at the end of the bulb, as described in Specification 433,033, in order to locate the filament 16 in a predetermined position in the bulb. In a modification, the bulb is of cylindrical form with an enlarged bulbous or spherical neck. Bases not provided with a flanged front end, for example those with bayonet pins, may be cooled at the front end by means of an air jet or by attaching thereto a metal clip of sufficient mass to have the necessary cooling effect.
Patent GB-754952-A (GB)
Title: Improvements in the manufacture of cellular compositions
IPC: C08J9/06
Filed: 1954-03-16
Abstract: A cellular plastic sponge is prepared by mixing a finely-divided plastic, e.g. polyvinyl chloride, with a chemical blowing agent, e.g. p-tertiary butyl benzazide, dinitrosopentamethylene-tetramine and N,N1-dimethyl N,N1-dinitrosoterephthalimide and a plasticizer, e.g. tricresyl phosphate and di-2-ethyl hexyl phthalate, bringing the mixture to an elevated temperature and holding it at this temperature until the flowing agent decomposes to form gas cells, and then heating the resulting sponge to a higher temperature sufficient to toughen the sponge.  Chlorinated paraffin, citric acid, basic lead carbonate, calcium stearate, and talc may also be present.  The process is preferably carried out at atmospheric pressure. Specifications 746,423 and 753,879 are referred to.
Patent GB-1418134-A (GB)
Title: Fabrication of printed cirucit boards
IPC: H05K1/03
Filed: 1973-02-16
Abstract: 1418134 Printed circuits RICHARDSON CO 16 Feb 1973 7629/73 Heading H1R A printed circuit board comprises a hydrocarbon substrate containing a butadiene acrylonitrile copolymer and a phenol formaldehyde resin wherein the copolymer and resin are present in a ratio of from 6 : 1 to 9 : 1 parts by weight respectively, and wherein the phenol formaldehyde resin contains formaldehyde and phenol in a molar ratio of from 1 : 1 to 1À5 : 1; an electroless metal deposit being bonded to at least a portion of the substrate. The board may include a reinforcing core of inert material, e.g. glass fibre, cotton, asbestos or cellulose treated with phenol formaldehyde resin, phenolics, epoxies, polyesters, or ceramics; the proportions of reinforcement and substrate material being variable and the latter containing optionally curing agents, accelerators, anti-tack and cross-linking agents. The curing agents may include organic peroxides or sulphur containing vulcanizers, and curing may be assisted by irradiation. The crosslinking agents may comprise polyfunctional isocyanates, and the anti-tack agents may comprise mica, soapstone, or alkaline earth silicates. The polymers are wholly curable prior to metallization, or cured in two partial steps before and after metallization. Initially the substance is etched, sensitized, electrolessly coated with metal, and electrolytically coated with further metal; the metal being nickel, copper, cobalt, gold, or alloys thereof and the etchant being sulphuric or phosphoric acid with sodium dichromate, while the sensitizer is stannous or palladium chloride. The initial electrolessly deposited layer may be partially masked and electroplated with copper, silver, or gold after which the mask and underlying metal are etch removed. Process examples are given.
Patent GB-264687-A (GB)
Title: Improvements in and relating to umbrellas, parasols, sunshades and the like
IPC: A45B25/10
Filed: 1926-03-19
Abstract: 264,687. Bagshaw, A. E. March 19, 1926. Covers.-The centre of a removable cover is sewn to a metal ring 9 which is screwed on to an arm extension 7 of the top notch 4. A frill 12 may be provided.
Patent GB-1521946-A (GB)
Title: Wet electrolyte capacitors and methods of making the same
IPC: H01G9/048
Filed: 1977-02-23
Abstract: 1521946 Electrolytic capacitors SPRAGUE ELECTRIC CO 23 Feb 1977 [8 March 1976  07693/77 Heading H1M In the manufacture of a wet electrolytic capacitor, a plastics header 10 is seated against an end of the capacitor section consisting of electrodes 11, 12 and spacer 13, but without electrolyte, with lead wires 14, 15 passing through the header, encapsulation is applied round the section, the header and a portion of the lead wires, electrolyte is introduced through an aperture in the header which is then sealed. As shown, the header has an extension forming a passage for the electrolyte and also serving as a means for supporting the capacitor section on a carrier for a plurality thereof, the extension being subsequently removed. In a modification, a first encapsulating layer is applied which does not cover the header, the capacitor is impregnated, the hole sealed and a second encapsulating layer applied this time covering the assembly. The encapsulation in the vicinity of the edge of the header is preferably sufficiently thin to permit venting by its ruture.
Patent GB-580063-A (GB)
Title: Improvements in or relating to methods of manufacturing luminescent screens
IPC: H01J9/22
Filed: 1944-04-26
Abstract: 580,063. Luminescent materials. CINEMA-TELEVISION, Ltd., and HEAD, R.B. April 26, 1944, No. 7823. [Class 39 (i)] A screen of luminescent material is formed on a carrier by covering the latter with a layer of solution of a binding material dissolved in a volatile solvent, allowing the solution to dry substantially and depositing on the substantially dry layer crystals of luminescent material. The solution of binding material may be phosphoric acid dissolved in a ketone or alcohol. Reference has been directed by the Comptroller to Specification 524,427.
Patent GB-588034-A (GB)
Title: Improvements relating to the preparation of active iron oxide for the purification of gases
IPC: C10K1/20
Filed: 1944-04-26
Abstract: Hydrated ferric oxide for desulphurising gases is produced by mixing an aqueous solution of ferrous salt with an excess-ammonia-free aqueous solution of ammonium carbonate, bicarbonate or carbonate, so that the ammonium salt is in excess throughout, and separating, washing and drying the ferrous carbonate precipitate.  Preferably the ferrous salt is added to the ammonium salt, and when carbonate is used some bicarbonate is added.  The ammonium salts produced may be recovered.  The reagent may be used as a broken cake, pellets, tablets, grains or fine powder either in a stationary bed or in suspension in the gas. The Provisional Specification discloses also the use of mixtures or double salts of the ammonium compounds. Specification 583,809 is referred to.
Patent GB-934320-A (GB)
Title: Improvements in or relating to moving-zone heat treating rod-shaped bodies
IPC: C30B13/22
Filed: 1962-02-28
Abstract: In a method of zone-melting, the molten zone is maintained by the passage of an arc discharge therethrough.  The current may be direct or alternating.  Two or more symmetrically placed electrodes may be employed (Figs. 7 and 2).  The molten zone may be initially formed within the rod as illustrated in Figs. 4-7. The molten zone may alternatively be formed at the end of a polycrystalline rod and then attached to a monocrystalline seed (Fig. 8).  The material zone-melted may be lanthanum cobalt oxide, nickel oxide, or aluminium oxide.  <PICT:0934320/III/1> <PICT:0934320/III/2> <PICT:0934320/III/3> <PICT:0934320/III/4> <PICT:0934320/III/5> <PICT:0934320/III/6>
Patent GB-957928-A (GB)
Title: Tunable cavity resonator
IPC: H01P7/06
Filed: 1962-02-28
Abstract: 957,928. Cavity resonators; velocity-modulated beam tubes. VARIAN ASSOCIATES. Feb. 28, 1962 [April 17, 1961], No. 2864/62. Headings H1D and H1W. A cavity resonator, e.g. for use in a klystron has walls with re-entrant portions forming between them a gap region in which electric field lines are concentrated, the cavity being tuned by a tuner assembly comprising two electrically conducting members spaced apart in the direction of the electric field lines across the gap region, means being provided for supporting the members and for applying motion to the members towards and away from the gap region. As shown, Fig. 4, the tuner assembly 27 comprises two similar semicylindrical paddles 38, 39 separated by a strap 41, the spacing between the paddles preferably not exceeding the length of the gap region. In an alternative embodiment, the strap may be further from the axes of the semi-cylindrical paddles and take the form of an inverted U.
Patent GB-687316-A (GB)
Title: Process for the production of canned sausage preserves
Inventor: HOCHNETZ FRANZ
IPC: B65B25/06
Filed: 1951-04-05
Abstract: 687,316. Canning sausage meat. OSTERREICHISCHE VIEHVERWERTUNGS GES. April 5, 1951, No. 7964/51. Class 49. In canning sausage meat, a container of rigid material, which has perforated walls, is closable at both ends, and is of the internal dimensions of the preserving can to be used, is lined with paper, vegetable parchment, regenerated cellulose film, or the like, and is filled with sausage meat, the container is closed, the sausage meat is subjected to the treatment required for rendering it palatable, the body of sausage meat is then removed, together with the lining, from the container, is introduced into the can, and the filled can is closed and sterilized. The apparatus of Fig. 2 comprises a perforated sheet metal tubular sleeve 1 which is slit longitudinally, and has, when the slit is closed by pressing down an eccentric lever 14, overlapping edges 1<SP>1</SP> and 1", and comprises also perforated bottom and top covers 2 and 3 pressable on to the ends of the closed sleeve by locking bars 4 and 5; the inside of the closed sleeve is lined with a rolled rectangle of paper, a paper disc is placed at the lower end of the rolled paper and the cover 2 is mounted, the lined tube is filled completely with sausage meat, a paper disc is placed thereon, the cover 3 is mounted, the sausage meat is subjected to boiling and smoking and then allowed to cool, the sleeve is then opened by removal of the covers and loosening of the lever 14, and the sausage body obtained is taken, together with the paper casing, from the sleeve for placing in the preserving can.
Patent GB-716999-A (GB)
Title: Improvements in chain hoists
Inventor: KULTNER HOLGER AUGUSTINUS
IPC: B66D3/22
Filed: 1952-03-28
Abstract: 716,999. Chain hoists. MABY & CO. March 28, 1952, No. 8020/52. Class 78(5). Double chain wheel 13 elevates load hook 17, the surplus chainage being wound on to drums 25 driven from the wheel 13 by unidirectional clutches 19-20. Thus the motor drives the double chain wheel 13 through gearing 15-14 and shaft 12, the latter having extensions 18 carrying freely the drums 25. The latter are pressed by springs 26 against ratchet 21 (co-operating with pawls 24) freely mounted on the shaft, which are pressed against collars 19 fixed on the shaft. In hoisting, the motor drives chain wheel 13 which drives the drums 25 to wind on the free chains from along guides 30. In lowering, ratchet 21 is held so that the chain wheel lowers the chains, pulling them off the drums which slip against the ratchets 21.
Patent GB-897149-A (GB)
Title: A method of preparing chlorinated diphenyl derivatives
IPC: C07C17/12
Filed: 1960-03-07
Abstract: <PICT:0897149/IV (b)/1> Highly-chlorinated derivatives of diphenyl, such as octa-, nona- and deca-chlorodiphenyl, are produced by passing a gaseous mixture of diphenyl vapour and chlorine through a fluidized bed of fine solid particles, the time of contact of the gaseous mixture and the fluidized bed being maintained between 2 and 20 seconds. The reaction is carried out at a temperature in the range of 470 DEG C. to 530 DEG C.  The preferred material for the fluidized bed is active carbon, but silica gel, alumina gel, diatomaceous earths or sand, may also be used.  The particle size is 50 to 250 microns. The fine solid particles are preferably impregnated with cupric chloride or barium chloride.  The gaseous reactant mixture may be diluted with an inert gas such as hydrogen chloride or nitrogen. In Fig. 1, diphenyl vapour, from evaporator 5, and chlorine, from preheater 3, enter the bottom of reactor 1 wherein the fine solid particles are fluidized.  The gaseous effluent from the upper part of the reactor flows into column 8; and an inert solvent, such as dichloro benzene or trichlorobenzene, in introduced into top of the column.  This solvent dissolves the chlorinated diphenyl from the effluent gases, and the solution is received in boiler 9.  The solution is discharged from boiler and flows, via filter 10, through two crystallizers 11, wherein the solution is cooled and the chlorinated diphenyl crystallizes out.  The crystals are separated in centrifugal separator 12; and the mother-liquor is recycled to the head of column 8.  The gases from the head of column 8 are passed, via heat-exchangers 14, to an absorption column 15 for the hydrogen chloride.  The chlorinated diphenyl may alternatively be isolated from the gaseous effluent from reactor 1, by passing the gas into a stronglycooled chamber, wherein the chlorinated diphenyl is obtained directly in the solid state.