baber/WOPTO huggingface dataset:
Patent GB-1404237-A (GB)
Title: Magnetic recording and or reproducing apparatus
IPC: G11B15/665
Filed: 1972-09-21
Abstract: 1404237 Tape loading MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 21 Sept 1972 [21 Sept 1971] 43828/72 Heading G5R A tape loop is withdrawn from a cassette 10 and wrapped round a rotary head drum 30 in the following distinct steps: (i) an initial loop is withdrawn by a withdrawal pin 34; (ii) a spreader pin 52 enters the loop and is moved to enlarge it; and (iii) feed pins 94, 96, 98 enter the enlarged loop and are moved to wrap the tape partially around the drum 30. The withdrawal pin 34 is mounted on a carriage 38 movable linearly on a lead screw 40. The spreader pin 52 is mounted on an arm 54 which is rotatable about both horizontal and vertical axes, in directions 74 and 68, Fig. 7, in order respectively to enter from below and enlarge the tape loop, the arm 54 being mounted on the horizontal crosspiece 56 of a T-shaped vertical shaft 58. Springs 76, 64 urge the arm 54 in the directions 74, 68, but the arm 54 is initially restrained by a stop pin 72 mounted on the carriage 38, until a tape loop has first been extracted. The pin 52 thereafter enters and enlarges the loop, as shown, until the arm 54 encounters a stop 132. A limit switch 134 also halts the carriage 38. Feed pins 94, 96, 98 are mounted on a plate 78, which is rotatable about a shaft 80 by a solenoid 120 to lower the pins 94, 96, 98 into the enlarged tape loop. The pins 94, 96, 98 are mounted on arms 88, 90, 92 rotatable about a shaft 86 on the plate 78, and the first arm 88 is rotated clockwise by a motor 104 to wrap the tape round the drum 30. The other arms 90, 92 include pins (110, 114), Fig. 9 (not shown), which are eventually engaged in turn by surfaces (108, 112) of the first arm 88, so that the pins 94, 96, 98 are rotated to a spaced relationship which holds tape away from the tape around the drum 30, Fig. 3 (not shown). The tape is then driven by a capstan 26 and pinch roller 28.
Patent GB-915068-A (GB)
Title: Atraumatic surgical needle
IPC: A61B17/06
Filed: 1960-12-23
Abstract: 915,068. Surgical needles. KRATZ, E. Dec. 23, 1960 [Dec. 28, 1959], No. 44213/60. Class 112. A surgical needle 1 has a longitudinal passage 2, for receiving a knotless thread, decreasing in depth from its rear end to its forward end and being narrowed in. width at its rear end, the needle also having a longitudinal slit 4 which has a wide portion at its forward end and gradually narrows towards the rear end to a width less than that of the narrow rear end of the passage. The thread end is passed into the passage 2 through the wide portion, of the slit 4, and the thread is then sprung through the narrow part of the slit into the rear of the passage, where it is clamped by a pair of internal shoulders 3.
Patent GB-969541-A (GB)
Title: Improvements relating to closures and dispensing devices for containers
IPC: B65D47/14
Filed: 1961-12-11
Abstract: 969,541. Container closures. AMERICAN FLANGE & MANUFACTURING CO. Inc. Dec. 11, 1961 [Feb. 28, 1961], No. 44260/61. Heading B8T. A dispensing closure of a resilient plastics material, e.g. polyethylene, has a seating part 1 with a neck 4, to be fitted into an inwardly turned opening in a container wall, which before application the container has at its lower end a cylindrical portion of the same diameter as that of the container opening, a frusto-conical portion extending therefrom to a further cylindrical portion having a greater external diameter. When the closure is pushed into the opening the neck 4 assumes the shape shown in Fig. 4. A cap 2 secured to the part 1 by a strap 3 has a collar 24 and an annular projection 31 on another collar 30 to fit into corresponding recesses on the part 1 so as to prevent leakage. A lip 15 on the cap facilitates the opening of the closure.
Patent GB-895578-A (GB)
Title: Improvements in or relating to digital data stores
Inventor: PAYNE WILLIAM RAYMOND
IPC: G11C11/06
Filed: 1959-12-31
Abstract: 895,578. Magnetic core data storage apparatus. GENERAL ELECTRIC CO. Ltd. Jan. 2, 1961 [Dec. 31, 1959], No. 44493/59. Class 106 (1). A magnetic core matrix store having two core " planes " each of twenty columns and 32 rows, there being a pair of cores in each plane at each position defined by a column and a row, is arranged to store forty words each of 32 bits, the words being successively read out by energizing column lines 31-70 in turn. These lines each thread the cores in one plane (27 or 28) twice, and in the other, once in reverse sense, so that line 31 for example will reset cores in column 1 of 27 to send the word stored, in parallel form, to read amplifier 75. At the same time the half-write pulses applied to column 20 of 28 will enable a word from 79 to be written in there by amplifier 78 gated by a signal at 81. Two cores are provided for each bit which when " reset " are left in states 0, 1; the writing pulses from 77 and 78 are in one sense to store a 0, setting the cores in the appropriate column at 0, 0 and in the other sense to store a 1 setting the cores 1, 1 so that the readout pulses presented to 75 will have a sense depending on the bit read out. Energizing of line 32 will read-out column 1 of 28 and enable writing into column 1 of 27, lines 81 and 82 being energized alternately to gate data to and from the appropriate planes.
Patent GB-975239-A (GB)
Title: Improvements in or relating to belts for supporting travelling filters
IPC: B65G15/36
Filed: 1960-12-30
Abstract: 975,239. Laminates. RAYBESTOSMANHATTAN Inc., and BELOIT IRON WORKS. Dec. 30, 1960 [Jan. 26, 1960], No. 44844/60. Drawings to Specification. Heading B5N. [Also in Divisions D1 and D2] A belt for use in supporting a travelling filter, e.g. the wire of a paper-making machine, has longitudinally extending lines of drainage holes and comprises a flexible casing body encasing a strengthening member. This member comprises several laminated plies of rubberimpregnated fabric, the fabric of each ply being woven from straight metal wire in the crossdirection and yarn in the direction along the belt, to inhibit changes in the width of the belt, but maintain flexibility along the belt. The metal wires may be of brass, stainless steel, bronze or aluminium. The yarn may be of cotton, rayon, nylon, polyester or glass, and of substantially larger gauge than the wire. The casing may be of rubber, synthetic rubber, nylon, polytetrafluoroethylene, polyethylene or polyvinyl resins, may be endless, and may be provided with drainage channels extending across it each communicating with some of the drainage holes. These channels may be milled into the rubber after curing, or may be formed during the moulding. Specification 421,604 is referred to.
Patent GB-1056017-A (GB)
Title: Process of producing butadiene polymer
Inventor: PERKINS ALAN JAMES
IPC: C08F136/06
Filed: 1965-10-25
Abstract: Rubbery butadiene polymers in which at least 50% of the polymer units have a cis-1,4 configuration are made by polymerizing butadiene-1,3, alone, or in admixture with one or more other ethylenically unsaturated hydrocarbon monomers with a catalyst formed essentially from TiI4 and a polymethylene dilithium compound, and in which the carbon-bound lithium to TiI4 mole ratio in the catalyst is no greater than three to one.  Specified lithium compounds are dimethylene, diethylene, tetramethylene, pentamethylene, hexamethylene, heptamethylene, octamethylene, nonamethylene, and decamethylene dilithium.  The other monomer may be isoprene, styrene, alphamethylstyrene, a vinyl toluene, propylene or ethylene.  The polymerization is effected in a hydrocarbon diluent, and the catalyst generally preformed.  The monomers may be purified, e.g. butadiene may be treated with tall oil soap and cuprous chloride, then distilled.  The polymers are recovered by known procedures.
Patent GB-451547-A (GB)
Abstract: 451,547. Gas lighters. STRETCH, A., 89, Palm Grove, Birkenhead, and BALHATCHET, J. B., Beech Cottage, Styal, Cheshire. Sept. 20, 1935, No. 26052. [Class 75 (iii)] In a gas lighter in which a flint 2 and a file 12 are mounted on the arms 5, 13 of a resilient frame, a detachable multiple flint magazine 1 is secured by a bolt 7 and a nut 10 and has a central non - circular recess or aperture 3 adapted to engage a correspondingly-shaped neck on the bolt, or embossing 4 on the leg 5, so that, on slackening the nut 10, the magazine can be retracted and turned to bring a new flint into operative position. The bolt 7 may be screwed in the leg or its non-circular neck may engage in a similarly-shaped aperture therein. The end 11 of the bolt may be spread to prevent detach. ment of the nut, an entrance gap 14 to the aperture 3 being provided to allow for detachment of the magazine from the bolt. The magazine may be of disc shape or may comprise two, three or more arms and an elongated, triangular or polygonal aper. ture or recess. The Provisional Speci. fication states also that the magazine may be provided with a circular aperture having peripheral notches for selectively engaging a feather or nib on the bolt or with a series of embossings for selectively engaging an aperture in the leg, and that the magazine may be slidably mounted in a guide on the lighter.
Patent GB-1118784-A (GB)
Title: Improved matting
Inventor: BEAUMONT ALBERT GORDON
IPC: C08L23/02
Filed: 1964-11-06
Abstract: Elongated articles such as filaments, yarns and strips of film are made of blends of a polyolefin and a natural or synthetic rubber. The preferred polyolefin is polyethylene.  The rubber may be natural rubber, an ethylene/propylene copolymer rubber or polyisobutylene. The articles may be used in the production of woven plastic matting, e.g. comprising a multifilament polyolefin blend weft and a hollow monofil polyvinyl chloride warp.ALSO:Woven matting for floors comprises filaments, yarns, or strips of film which may be fibrillated or slit and twisted, made of a blend of polyethylene and a natural or synthetic rubber. Specified synthetic rubbers are ethylene/propylene copolymer rubbers and polyisobutylene rubbers.  In a described preferred matting the warp is hollow monofilaments of polyvinyl chloride and the weft is multifilament yarns made of polyethylene/rubber blend.
Patent GB-955381-A (GB)
Title: Apparatus permitting the removal of rivets from tubular members
Inventor: HERMANN HORST
IPC: G21C19/36
Filed: 1962-11-30
Abstract: 955,381. Separating riveted joints. COMMUNAUTE EUROPEENNE DE L'ENERGIE ATOMIQUE EURATOM. Nov. 30, 1962 [Dec. 9, 1961], No. 45414/62. Heading B3W. An apparatus for removing rivets from a tubular member comprises a punch supported and guided by an operating mechanism which produces displacement of the punch at right angles to the tubular member in the axial direction of the rivet, a two-part mandrel which fits inside the tubular member and an abutment member which is applied externally of the tubular member. In the embodiment described, the apparatus is applied to removing the rivets which secure a reactor fuel element casing to its support. The fuel element casing 1 which is freely suspended from its top end is secured to the support 2 by rivets 3. A rivet-removing punch 4 is mounted in the piston-rod 7c of a compressed air-operated cylinder assembly 7. A feeler rod 15 passes through the piston-rod and punch and has a head 16 which covers ports 7d which pass through the piston 7a. The rivet 3 is hollow and unless the rod 15 engages the hollow centre of the rivet the head 16 is held to the right in Fig. 1 and no pressure is developed on the piston 7a. An abutment 6 is supported from the cylinder 7 by arms 18; and the complete assembly is supported by legs 22 and 23 and guide rollers 10, on a table 9, so that the assembly is free to align itself with the tube. Supported from the underside of the table 9 by legs 31 is a piston and cylinder assembly 26. The piston 26a of this assembly is secured to one part 5a of the two part mandrel. This part 5a comprises a half-open tube which is chamfered at 5h and is closed at the end 5d. There is an opening 5g in the wall of the tube through which the ejected rivet passes. The second part of the mandrel is secured to the table 9 by screws 37 and can be adjusted axially by a wedge 36. Operation.-The suspended fuel element is fitted over the mandrel and compressed air is applied to cylinder 7 through the pipe 33 and also to the cylinder 26 through the pipe 32. When the rod 15 is aligned with the rivet 3 the head 16 seats and covers the ports 7d so that pressure builds up in both cylinders. The piston 26a moves down so that the mandrel is clamped in the tube and the rivet is driven out by the punch 4. The mandrel is unclamped by applying pressure to the pipe 34 or by lowering the apparatus so that a cap 38 butts against an anvil (not shown).
Patent GB-1271579-A (GB)
Title: Metal-containing formazane compounds and their use as dyes
Inventor: GRANDJEAN PHILIPPE
IPC: C09B50/00
Filed: 1969-09-16
Abstract: 1,271,579. Metallized formazane dyes. SANDOZ Ltd. 16 Sept., 1969 [27 Sept., 1968; 16 Oct., 1968], No. 45619/69. Heading C4P. New metal complexes of formazane dyes of formula wherein X is halogen, Y and Z are H, halogen, NO 2  or an alkyl or acylamino group which may be substituted, R 1  is H or an aliphatic radical which may be substituted, R 2  is an aliphatic, cycloaliphatic or benzene radical which may be substituted or N, R 1  and R 2  form a ring and the dyes contain only one SO 3 H group, are prepared by coupling a diazotized o-aminophenol with an appropriate hydrazone and metallizing the product. The dyes are used to colour leather, natural or regenerated cellulose fibres, polyurethane fibres and natural and synthetic polyamide fibres, in particular wool, in blue shades. In examples the preparation of Cu and Ni complexes is described.
Patent GB-958079-A (GB)
Title: Composition containing polypropylene
Inventor: RAYNER LAURENCE STEPHEN
IPC: C08F297/08
Filed: 1961-12-20
Abstract: Polypropylene is blended with a block copolymer of ethylene and propylene in such proportions that the blend has a flexural modulus (measured one day after the test piece has been moulded) of at least 1.4 x 105 pounds per square inch. By polypropylene is meant a solid material obtained by polymerization of propylene which is at least 90% by weight insoluble in boiling diethyl ether. By block copolymer is meant a material which is also at least 90% insoluble in boiling diethyl ether, resulting from a copolymerization process in which at least two different monomers or monomer mixtures are brought into contact with a polymerization catalyst, in rotation or in sequence. Preferably the block copolymers contain less than 40% by weight of ethylene. The blend preferably contains between 10-90% by weight of the block copolymer. The blends are prepared by tumbling the component together and then densifying by extrusion or by milling the components together. A stabilizer for polypropylene may also be added.
Patent GB-1449013-A (GB)
Title: Looms
IPC: D03D49/60
Filed: 1973-10-02
Abstract: 1449013 Looms SULZER BROS Ltd 2 Oct 1973 [2 Oct 1972] 46057/73 Heading D1E A loom comprises a main drive shaft 4 during the sley through a mechanism connected to the shaft wholly within a zone whose extent in the direction of the shaft length is small in comparison to the shaft length, and power transmission paths from the connection to any pair of points symmetrically positioned with respect to the weaving width of the loom, on the sley, through the mechanism and, if the said pair of points are not points at which the sley is connected to the mechansim, through other parts of the sley are effectively symmetrical. As shown, the mechanism consists of an intermediate shaft 9 which has a drive connection to the sley at three points by way of conjugate cams 10 acting on followers 11, and is centrally driven from the shaft 4.
Patent GB-1442775-A (GB)
Title: Apparatus for actuating a rotary work gripping collet
IPC: B23B31/30
Filed: 1973-10-03
Abstract: 1442775 Hollow spindles; chucks HARDINGE BROS Inc 3 Oct 1973 [3 Aug 1973] 46216/73 Headings B3T and B3B [Also in Division F2] A device or actuating a rotary gripping collet comprises a cylinder 18 mounted to a rotary spindle sleeve 44, a collet drawing member 12 extending through the cylinder 18 and being axially movable therethrough, a piston 16 slidable in the cylinder and connected to the drawing member, said piston including a first valve means 106 for admitting fluid pressure into a first chamber on one side of the piston and a second valve means 108 for admitting fluid pressure into the second chamber 98 on the other side of the piston, said first valve means 106 including a piston 134 to vent said first chamber when fluid pressure is admitted to the second chamber and said second valve 108 including a piston 135 to vent said second chamber when fluid pressure is admitted to said first chamber, and a stationary sleeve connection 20 for alternately connecting a source of pressure fluid, e.g. air, to said first or second chambers through said first and second valve means 106, 108, the said valve means 106, 108 being biased by springs 114, 115 to a closed position to trap fluid in a respective chamber of the cylinder when the fluid pressure is reduced so that a workpiece is held by the collet even when the fluid pressure source fails. The draw member 12 is constructed of an inner sleeve 32 having a pair of spaced apart slots and an outer sleeve 30 in close fitting engagement with the inner sleeve to form with the said slots a pair of fluid passageways 68, 70 connecting the sleeve connection 20 to passages 130, 131 in the piston 16. The inner sleeve 32 is connected to a further sleeve 52 which is screw connected to the collet.
Patent GB-462730-A (GB)
IPC: G03C1/485
Abstract: 462,730. Photographic sensitive materials. SZASZ, G. Sept. 14, 1935, No. 25584. Convention date, Sept. 15, 1934. Drawings to Specification. [Class 98 (ii)] Silver halide emulsions for the production of direct positives are produced by first forming the halide in a solution containing a quantity of gelatin insufficient to allow of the formation of an emulsion, the solution being allowed to stand till the halide is precipitated, and then emulsifying the precipitate in a further quantity of gelatin, the silver halide being subjected to light or chemical treatment to bring it to a condition of maximum density at any stage in the process. The silver halide may be allowed to ripen before emulsifying. The chemical treatment may consist in treatment with silver nitrate, sulphur compounds such as thiourea thiocarbamide or allyl thiocyanates, or dyes such as safranine, azine, oxazine, thiazine or quinoxaline dyes. Sensitizing dyes such as thio-carbocyanines may also be used. In carrying out the process, a solution of ammonium bromide and potassium iodide containing a small quantity of gelatin is mixed with a solution of silver nitrate in the cold and the so-formed silver halide is emulsified in gelatin. The supernatant liquid in the first mixture may be removed or retained as desired. The resulting emulsion is subjected to preexposure and additional substances for increasing the frequent tendency may be used. For the pre-exposure the precipitate or the final emulsion may be passed through a transparent pipe in a charriber provided with powerful light sources which may be controlled as to the degree of illumination and may be provided with filters.
Patent GB-462996-A (GB)
IPC: G03C7/14
Abstract: 462,996. Colour and stereoscopic photography. LASSUS ST. GENIES, A. H. J. DE. Oct. 28, 1935, Nos. 29755 and 29756. Convention dates, Oct. 27, 1934 and Oct. 7, 1935. [Class 98 (ii)] In copying lenticular films by projection with small aperture optical systems which do not allow the simultaneous passage of all the elementary beams, the projection system only effects the projection of macroscopic images, while the separation of the beams corresponding to the partial images or to the monochromes of the original and their juxtaposition in the lenticular elements of the copy are effected by refracting devices such as prisms of which one, arranged between the original film and the objective, successively orientates the beams by refraction to cause them to pass through the aperture of the optical systems employed, and another, arranged between the objective and the copy film, produces, by refraction, displaced virtual images of the diaphragm of the copying optical system. As shown, the film F illuminated by the source S is copied by projection on to the film I by an optical system 0 having a diaphragm C. The points of concentration of the axes of the elementary monochrome beams are shown at r, v, b. The refracting prism N deflects the beams concentrating at r so that they concentrate at v on the principal optical axis of the projection system 0 and can accordingly pass therethrough. A prism N<1> in front of the copy film I displaces the diaphragm C to an apparent position r<1>. The prisms are turned in the opposite direction for the reproduction of the beams concentrating at b, and glass plates are used for the reproduction of the beams concentrating at v. Where the colour filter comprises concentric sectors the prisms are rotated to occupy three successive positions. Additional lenses may be employed. Where the lenticulations face the source a lens is arranged on each side of the original film. Liquid prisms and diasporameters may be used, and in this case all the elementary beams may be transmitted continuously from the original to the copy film. The lenticular films may bear stereoscopic pictures.
Patent GB-985799-A (GB)
Title: Improvements in or relating to electron tube circuits
Inventor: DRAGE JAMES JOHN
IPC: H03K21/08
Filed: 1962-12-11
Abstract: 985,799. Electronic counters. BELL PUNCH CO. Ltd. Dec. 5, 1963 [Dec. 11, 1962], No. 46632/62. Addition to 925, 308. Headings G4A and G4H. The parent Specification discloses an electronic counter in which each cathode of an indicating tube 7 is in series with an associated trigger tube 2-5, such that an input pulse at 26 maintains the indicating tube in a state of ionisation but cuts off the trigger tube, say 2, so that the next trigger tube 3 fixes and the ionisation in the indicating tube steps along at the end of the pulse. The present invention makes the stepping more reliable by connecting the anodes of the trigger tubes to a source of potential and by shunting the resistors 13-19 connected to the trigger electrodes by semi-conductor diodes D1-D4.