baber/WOPTO huggingface dataset:
Patent GB-1299307-A (GB)
Title: Gapped and cleaned seam type slide fastener chains and method and apparatus for making the same
IPC: A44B19/58
Filed: 1971-04-28
Abstract: 1299307 Strip fastener TEXTRON INC 28 April 1971 [30 April 1970] 11837/71 Heading E2S A seam-type fastener chain 20 comprises a plurality of meandering type elements 24, 124 sewn continuously to the stringer tapes 30, 130. Cleaned portions are produced in the chain by feeding gapped portions, where the interlocking elements 28 are severed from the heel members 22, sequentially under vibrating heads (70, 72, 78, 80) Fig. 1 (not shown) which reciprocate transversely to the chain, and remove the severed heel members by frictional engagement, the gapped portions being supported on guides 44, 46.
Patent GB-433274-A (GB)
Title: Improvements in metal caps for electric incandescent lamps, electric discharge devices and the like
IPC: H01J5/54
Filed: 1935-04-17
Abstract: 433,274. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent- Treuhand-Ges. fur Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) April 17, 1935, No. 11863. Convention date, April 20, 1934. [Class 39 (i)] [See also Group XI] In a metal cap for discharge devices such as lamps, having one or more contact pins insulated and protruding therefrom, each contact pin e fits into a hole d in the metal of the cap and is insulated from the cap by means only of a layer of oxide f formed on the surface of the metal before the pin is placed into the hole. Preferably the cap is made of aluminium, with a layer of oxide formed on it by electrolytic oxidation. The contact pins e are riveted within the holes and are made hollow to enable leading-in wires k to be passed therethrough and soldered to the outer end of the pin. The cap is secured to the envelope h by packing or cement g.
Patent GB-1221861-A (GB)
Title: A machine for the automatic manufacture of compacted powder blocks
Inventor: ALTIERI RENATO
IPC: B30B11/10
Filed: 1968-03-12
Abstract: 1,221,861. Rotary table press. R. ALTIERI. 12 March, 1968 [23 March, 1967], No. 12016/68. Heading B5A. In a rotary table press the moulds are intermittently indexed through a lower punch cleaning station, a lubricating station, a power feeding station, a precompacting station, a compression moulding station and an ejecting station. The moulds 10, Fig. 3, are interchangeable and are carried by a table 7, the bottom of each mould cavity being defined by a reciprocating plunger the actuating mechanism of which comprises an interrupted annular cam 30 on which ride roller bearings 14 which periodically enter shoe members 15, 41, connected to pistonrods 16, 42 at the lubricating and pre-compaction stations. At the cleaning station, the surface of the lower plunger 48 is raised and cleaned by an electrically driven brush, and on retraction of the plunger a brush attached thereto cleans the mould cavity walls. At the lubricating station, the lower plunger 48 is lowered by a downward movement of shoe member 15 and a compressed air gun is actuated to spray the mould cavity with a lubricating powder or liquid. At the filling station, the mould is aligned with a hopper 3, Fig. 12, which is continuously supplied with powder by a screw conveyer and which contains a stirrer 46, 47 driven through belt gearing by an electric motor. The lowest position of the lower plunger 48 can be adjusted to regulate the delivered dosage. At the pre-compacting station the mould is closed by a plate 27, Fig. 13, carried by the piston-rod of a pneumatic cylinder and the plunger 48 is raised by operation of the pneumatic motor 42. As the mould moves from the pre-compacting to the compression station an air gun sprays the compacted material with a lubricant and the surface of the upper plunger 26 is cleaned by the rotating brush and is sprayed with lubricant from a second air gun. At the compression station, the plunger 26 is moved to compress the material. At the ejecting station, the moulded article is gripped between pincer members carried by a plate which is then rotated through 180 degrees to deliver the article to a belt conveyer which feeds the article to a packaging station.
Patent GB-920308-A (GB)
Title: Improved edge guide for roll-type insect screen
IPC: E06B9/54
Filed: 1961-04-04
Abstract: 920,308. Roll - type screens. HUNTER DOUGLAS INTERNATIONAL (QUEBEC) Ltd. April 4, 1961 [April 6, 1960 (2)], No. 12080/61. Class 20 (3). In a roll-type insect screen, the side edges of the gauze sheet, e.g. of fibre glass mesh, are guided in guides comprising a front member 6 and a rear member 7 mutually pivoted together at 9 and the free edges 8, 11, between which one of said edges passes being urged towards each other by a spring 14 frictionally to grip said edge, and the grip is relieved when the gauze is in motion on or off the roller by the ends of the bottom bar. Each end of the hollow bottom bar is provided with an end cap 19, Figs. 4 and 5, as a box-shaped moulding of resilient plastics &c. having a bulbous protrusion 20 and being adjustably frictionally secured on the bar by means of fins 21 gripping into the hollow ends of the bar. During motion of the gauze, the cap rides within the guide 6, 7 and maintains the free edges 8, 11 apart. At least one of the free edges 8, 11 may have longitudinallyextending ribs or teeth.
Patent GB-940060-A (GB)
Title: Improvements relating to electric limit switches
Inventor: BROMWICH RICHARD THOMAS
IPC: H01H13/28
Filed: 1959-04-10
Abstract: 940,060. Retractive switches. CRAIG & DERRICOTT Ltd. July 8, 1960 [April 10, 1959], No. 12123/59. Heading H2B. A switch unit, e.g. the snap-action switch of Specification 726,902, is plugged into a fixed casing to form a limit switch assembly. The casing 10 has contacts 25 engageable by clip contacts on the rear of the switch unit 34 which is guided into position by dowels 49 entering holes 48, the unit 34 being secured by screws in the dowels. The casing also has a plunger 32 with a flexible skirt 33 and the plunger 38 of the unit 34 takes up position immediately below plunger 32 for actuation thereby. The cover 12 may be completely detachable or hinged to the casing 10. The actuating member may be a lever pivoted on casing 10.
Patent GB-1082943-A (GB)
Title: Derivatives of 7-aminocephalosporanic acid
Inventor: EARDLEY STEPHEN
IPC: A61K31/545
Filed: 1963-03-27
Abstract: The invention relates to derivatives of 7-aminocephalosporanic acid of formula <FORM:1082943/C2/1> in which R1 is hydrogen, halogen, alkoxy, alkythio, acyloxy, acyl, carboxyalkyl, carbamoyl, alkyl, hydroxy, nitro or amino; R2 is hydrogen, halogen, alkoxy, alkythio, acyloxy, acyl, carboxyalkyl, carbamoyl, alkyl, hydroxy, amino or substituted amino; R3 is hydrogen (except when R1 is hydrogen), alkyl, hydroxyalkyl, N-hydroxyalkylcarbamoyl, alkanoyloxy wherein the alkyl moieties contain not more than 4 C atoms; X is 1 or 2. Examples are N-(7-phenylacetamidoceph - 3 - em - 3 - ylmethyl)-21,41 - dimethyl pyridinium - 4 - carboxylate, N - (7 - phenylacetamido - ceph - 3 - em - 3 - ylmethyl) - 21 - methyl pyridinium - 4 - carboxylate, N - (7 - phenylacetamidoceph - 3 - em - 3 - ylmethyl) -21 - hydroxy - methylpyridinium - 4 - carboxylate and N - [7 - p - acetoxyphenylacetamido - ceph - 3 - em - 3 - ylmethyl] - 21 - methylpyridinium - 4 - carboxylate.  The compounds are prepared by reacting a compound of formula <FORM:1082943/C2/2> or a water-soluble salt thereof, in a strongly polar medium with a compound of formula <FORM:1082943/C2/3> wherein R is hydrogen or <FORM:1082943/C2/4> and R1, R2, R3 and X have the above meanings; the resulting compound where R is hydrogen being phenylacetylated with an appropriate phenylacetylating agent.  Water, aqueous acetone or aqueous N,N-dimethylformamide at pH 5 to 8 are the preferred media for the preparation of the compounds of the invention.  A compound of Formula II where R1 is NH2 is obtained by reducing by catalytic hydrogenation a compound of Formula II where R1 is NO2.  The 7-aminocephalosporanic acid derivatives are effective against penicillinase-producing staphylococci and may be formulated into pharmaceutical and veterinary preparations (see Division A5).ALSO:A pharmaceutical or veterinary preparation comprises a carrier and a derivative of 7-aminocephalosporanic acid of formula <FORM:1082943/A5-A6/1> in which R1 is hydrogen, halogen, alkoxy, alkylthio, acyloxy, acyl, carboxyalkyl, carbamoyl, alkyl, hydroxy, nitro or amino; R2 hydrogen, halogen, alkoxy, alkylthio, acyloxy, acyl, carboxyalkyl, carbamoyl, alkyl, hydroxy, amino or substituted amino; R3 is hydrogen (except when R1 is hydrogen), alkyl, hydroxyalkyl, N-hydroxy alkylcarbamoyl, alkanoyloxy wherein the alkyl moieties contain not more than 4C atoms; X is 1 or 2, e.g. N-(7-phenylacetamidoceph-3-em-3-ylmethyl)-2\sv,4\sv-dimethyl pyridinium-4-carboxylate.  The preparation may be an injection, tablet, capsule or oral liquid, a lotion, ointment or cream or a veterinary cerate.  Other antibiotics such as penicillins and/or the tetracyclines may be present.
Patent GB-896225-A (GB)
Title: Improvements in or relating to spades, shovels or similar implements
IPC: A01B1/02
Filed: 1960-04-06
Abstract: 896,225. Spades. DUPPENGIESSER, K. A. April 6, 1960, No. 12172/60. Class 6(2). A spade is formed from a single piece of sheet metal and comprises a blade 1 and two handle-attaching lugs 2 extending from the sides of the blade towards each other so that their free ends 3 form a support for the handle. The top 5 of the blade is turned over to form a driving edge. In a modification supports 2 are bent along the top of the blade to form a driving edge.
Patent GB-773834-A (GB)
Title: Improvements in or relating to electron wavetubes
IPC: H01J25/40
Filed: 1955-04-27
Abstract: 773,834. Space charge wave tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. April 27, 1955 [April 27, 1954], No. 12183/55. Class 39(1). A high frequency space charge wave oscillation generator comprises two electron beams projected in opposite directions and separated by a " geometrically periodical structure " such as a grid, or a ladder delay line, which is designed so as to be incapable of propagating waves in the operating frequency band of the tube, and a delay line section or other periodical coupling means disposed near one or both ends of the geometrically periodical structure and connected to a respective output connection or connections and the beam velocity can be varied for electronic tuning. It is stated that due to noise components carried by the beams and the close proximity of the beams to one another, interaction takes place between the beams through the geometrical periodical structure which become density modulated, the distance between the electron bunches and consequently the output frequency depend on the pitch of the geometrically periodical structure and its voltage, variation of its voltage giving electronic tuning. In one form, Fig. 1, two concentric beams 1, 2 travelling in opposite.directions are separated by a grid structure 3 (the geometrically periodical structure) comprising wire rings 18 carried by metal rods 17. Short helical delay line sections 6, 7 give two outputs to feeders 14, 15, their free ends being terminated by colloidal graphite loss coatings 4, 5. The two output lines are joined by a connection 30 within the tube. Structure 3 is given an adjustable positive potential by potentiometer 13 to give the beams the desired velocities which are equal to one another but oppositely directed. The oscillation frequency is said to be the beam velocity divided by the distance between the bunches of the density modulated beams. It is stated that more than two beams of the same or different velocities can be used. The geometrical periodical structure 3 can in general be a grid with square circular or polygonal meshes, or a ladder delay line 35, Fig. 4, separating two parallel oppositely travelling beams 31, 32. The device operates with crossed electric and magnetic fields and ladder line 35 is positive with respect to electrodes 36, 37 setting up the transverse electrostatic field, the potentials of 36, 37 being adjustable by potentiometers 52, 53. Flat helical delay lines 48, 49 extract two outputs, the free ends of the delay lines being coated with loss material as before. The velocities of the beams may be varied by varying the potentials of 36 or 37 by potentiometers 52, 53 or by varying the magnetic field. The tube of Fig. 4 can be bent into circular form.
Patent GB-1184052-A (GB)
Title: Improvements in or relating to the Treatment of Bearing Surfaces
Inventor: ASHWORTH STEWART IVES
IPC: B24C1/00
Filed: 1966-03-19
Abstract: 1,184,052. Blasting. ABRASIVE DEVELOPMENTS Ltd. 18 April, 1967 [19 March, 1966], No. 12198/66. Heading B3D. A bearing surface, e.g. of an alloy piston for an internal combustion engine or a reciprocating compressor or of a cast-iron piston, is blasted by a slurry of generally spherical particles, having sizes between 100 and 150 B.S. mesh (i.e. 75-166 microns) and of a material having a specific gravity of between 1 and 4, entrained in a stream of gas having a pressure of between 60 and 120 p.s.i. gauge, the slurry containing between ¢ and 4 lbs. of particles per gallon and being discharged from a nozzle on to the surface at a rate of between 20 and 60 gallons per minute and at a point located between 4 and 12 ins. from the surface. The particles may be ballotini made of soda glass having a specific gravity of 2À4 and a hardness of between 4À5 and 6 on Mohs' scale. A wetting agent, e.g. a dimethyl silicone, may be used. Each particle may have a coating of wetting agent weighing between 1 and 3% of the weight of the uncoated particle. Alternatively, the wetting agent may be added to the liquid in a concentration of between 1/6 and ¢ % by weight. Calcium, aluminium or zinc stearate may be used instead in a concentration of between 1/6 and 1% by weight. The blasting is stated to render unnecessary wire brushing and tin plating of a cast piston after machining, and improves the lubricating qualities of the surface. An alloy piston is placed on two rolls rotating about horizontal axes in a cabinet. Mounted in the cabinet are guns as described in Specification 1,105,984, one gun being directed at the piston crown, two guns directed at the cylindrical surface from above, and one gun directed into the interior.
Patent GB-662884-A (GB)
Title: Improvements in and relating to shaft packings
IPC: F16J15/30
Filed: 1949-05-07
Abstract: 662,884. Stuffing-box packing. ADAMSON & CO., Ltd., D., and HANDFORTH, H. April 25, 1950 [May 7, 1949], No. 12211/49. Class 122(v) In a segmental packing ring 4 encircled by a garter spring 7 in an external circumferential groove 6, plungers 8 are mounted on the garter spring .and accommodated in aligned recesses 12, 13 in the walls of the groove one end of each plunger projecting through the adjacent recess so that when the ring is assembled in its housing the spring is pushed to one side and thereby maintains the ring in its correct position. The plungers 8 are threaded on the garter spring and have one end 9 flat and the other end 10 rounded and an offset transverse hole 11 therein nearer to the flat end so that the rounded ends 10 project from the face of the ring and, when the ring is assembled, are pressed by axial resilience of the garter spring against the adjacent wall 16 of the housing groove. The recesses 13 in the groove wall adjacent to the flat end 9 of the plungers are widened to permit axial deflection of the garter spring.
Patent GB-1117586-A (GB)
Title: Improvements in or relating to rolling mills
Inventor: POWELL FRED HARDING
IPC: B21B13/02
Filed: 1967-03-15
Abstract: 1,117,586. Rolling. REYNOLDS METALS CO. 15 March, 1967 [15 March, 1966], No. 12215/67. Heading B3M. [Also in Division B5] In a parallel roll mill, e.g. for forming a continous strip from preheated metal particles, e.g. aluminium, copper, lead, zinc, magnesium, nickel, silver and alloys thereof, the metal particles are fed under gravity to the nip N of cooled horizontal forming rolls 2, from a hopper (8) (Fig. 2, not shown), and the strip is withdrawn vertically under tension and guided to the horizontal direction over a guide roll (12). The forming rolls 2 are backed by larger diameter backing-up rolls 11 and each forming roll 2 is provided with a first neck portion 4 at one end A, at which it is driven, which is of larger diameter than a second neck portion 5 at the other end B. Each end A extends in an opposite direction from the working faces 3 of the rolls and the necks 4 thereof are journalled in larger bearings 6 than the bearings 7 of necks 5 and which bearings 6 are also spaced axially from the surfaces 3 by a greater distance than the other end of the roll neck 5, whereby bearings 6 may overlap bearings 7 along the pass line of the mill. The bearings 13 of the backing rolls also overlap bearings 6 along the pass line.
Patent GB-627786-A (GB)
Title: Improvements in or relating to jointed stays for flexible hoods of perambulators andthe like
IPC: B62B9/14
Filed: 1947-05-07
Abstract: 627,786. Stays for hinged articles ; hinges. BARKER & CO. (BIRMINGHAM), Ltd., and COLEY, A. J. May 7, 1947, No. 12291. [Classes 65 (i) and 65 (ii)] The arm 1 of a jointed, folding stay is provided with an integral handle 7 which provides a housing 8 into which the end 10 of the other arm 2 can enter and, in the overcentre position of the arms, engage an internal abutment 9 in the housing. The abutment consists of a plate-like liner which is mounted on the pivot pin 3 and fits as a plug in the arm 1. A catch 16, pivoted to the abutment plate, is adapted to co-operate with teeth 17 on the arm 2 for the purpose of supporting the arms in a partly folded position. Specification 627,823 is referred to.
Patent GB-708113-A (GB)
Title: Production of composite still or moving photographs in colour
Inventor: HOULT ROBERT LITTLETON
IPC: G03B15/08
Filed: 1950-05-17
Abstract: 708,113. Composite photography: colour filters. DENHAM LABORATORIES, Ltd. Aug. 16, 1951 [May 17, 1950; Sept. 28, 1950; Feb. 22, 1951], Nos. 12295/50, 23737/50 and 4369/51. Drawings to Specification. Classes 97(1) and 98(2) A foreground subject illuminated by white light, or white light from which a narrow spectral band has been extracted, is photographed in front of a plain background illuminated by light in that narrow spectral band using a beam splitting camera to record the foreground on colour film protected from rays in that band and to record the background on a film sensitive only to rays in that band or which is protected by a filter from all other rays, the said spectral band being chosen to be in a region of minimum sensitivity of the colour film used to record the foreground. The filters may be of the interference type. Where another order of transmission of such a filter, other than that required, occurs within the visible spectrum it may be suppressed by another filter. A single inclined interference filter may also act as the beam splitting layer, its thickness being graded over its area to take account of the variation in average angle of incidence of light at various points over the filter. Also, because such a filter so used exhibits a twin peaked characteristic, one peak is suppressed by another filter which, since the rays corresponding to the two peaks of the characteristic are oppositely polarized, may be a polarization filter. In another embodiment the narrow waveband used is sodium light, the filter used to protect the colour film being didymium glass.
Patent GB-789128-A (GB)
Title: Improvements in the production of copolymers
Inventor: MILLAR JOHN ROBERT
IPC: C08F16/36
Filed: 1955-04-28
Abstract: A copolymer of a ketone containing two polymerizable double bonds each forming part of a conjugated system with the carbonyl group and a monomer containing one polymerizable double bond is made by dehydrohalogenating a bis-(2-haloalkyl) ketone with a solution of a salt of weak acid in the presence of the monomer and polymerizing the resulting mixture with a polymerization catalyst that is present during at least the latter stages of the dehydrohalogenation.  The monomer may contain an ion exchange group.  The polymerization may be carried out in bulk, aqueous emulsion, or suspension.  The ketone may be the divinyl compound obtained from bis-(2-chloroethyl) ketone or vinyl isopropenyl ketone obtained from 2-chloroethyl, 2-chloroisopropyl ketone.  The monomer may be methacrylic acid, methyl methacrylate, or styrene. Cation-exchange groups may be introduced into the copolymer by after-treatment with sulphonic acid-containing compounds and anion-exchange groups by introducing haloalkyl groups into the copolymer with subsequent amination.  The salt of a weak acid may be sodium acetate, formate, or citrate. Catalysts mentioned are azo-bis-isobutyronitrile and ammonium persulphate.  The emulsifier may be polyvinyl alcohol.  The copolymer may be in the form of beads or granules.
Patent GB-1169819-A (GB)
Title: Thioxanthene Oxides
Inventor: JUCKER ERNST
IPC: C07D409/04
Filed: 1967-03-16
Abstract: 1,169,819. Thioxanthene oxides. SANDOZ Ltd. 16 March, 1967 [6 April, 1966 (2); 23 Jan., 1967], No. 12312/67. Heading C2C. Novel compounds I (including acid addition salts thereof), wherein R is an alkyl radical (C 1 -C 4 ) and n is 1 or 2 are prepared: (i) (n is 1) by oxidation of the corresponding 9-pyrrolidinylidenethioxanthene or by oxidation in a neutral or slightly acidic solution of a 9 - pyrrolidinyl - 9 - hydroxythioxanthene (proceeds via an intermediate 9-pyrrolidinyl-9- hydroxy - thioxanthene - 10 - oxide); and (ii) (n is 2) by oxidation in a strongly acid solution of any of the above compounds including compounds I wherein n is 1. Pharmaceutical compositions having an antidepressant activity contain as active ingredient compounds I and are administered enterally or parenterally.
Patent GB-912230-A (GB)
Title: Improvements in or relating to apparatus for manufacturing printing master sheets
IPC: G03D9/00
Filed: 1961-04-06
Abstract: 912,230. Photographic transfer copying. RITZERFELD, W., and RITZERFELD, G. April 6, 1961 [April 14, 1960; May 18,1960], No. 12367/61. Class 98 (2). [Also in Group XVI] Apparatus for manufacturing printing master sheets has a processing bath and guides for processing a sheet therein, with a contact pressure device comprising a pair of rollers, one of which is heatable and one of which is swingably mounted, and feeding means to pass two sheets in contact between the rollers such that the sheets make contact with each other only on reaching the rollers. In the form shown, the apparatus is for the process of bringing a developed negative sheet carrying a silver halide gelatin emulsion into contact with a hectographic ink transfer sheet, and bringing the transfer sheet into contact with a printing master sheet blank. The pressure rollers are constituted by an upper roller 12, retractable under the action of a handle 11, and a lower roller 9 containing a heating resistance 8. Initially the roller 12 is retracted, the exposed negative sheet 20 laid across roller 9, and the handle 14 turned, which causes roller 9 to rotate and pass the sheet 20 under a guide 21 into a bath 22 of developer liquid in a tank 2. Meanwhile an ink transfer sheet 24 is placed, coated side down, on a feed table 4 pivotally mounted on top of the tank 2, the ends of sheets 24 and 20 being in contact. Roller 12 is swung back to press the sheets together, the heater 8 switched on, and the handle 14 turned, thus passing the two sheets in contact between the rollers, after which they are separated manually. Sheet 24 now carries the image transferred from the negative sheet 20. Sheet 24 is now placed on the lid 3 of the tank 2, and a printing master blank 27 laid on feed table 4. The two sheets are again passed between rollers 9 and 12, the image on sheet 24 being transferred to the sheet 27 which now becomes a printing master sheet. Fig. 2 (not shown) is a modification having two tables such as 4, and two retractable rollers one above the other.