baber/WOPTO huggingface dataset:
Patent GB-935225-A (GB)
Title: Improvements in electromagnets
Inventor: BENSON HECTOR EUGENE
IPC: H01F7/08
Filed: 1961-05-19
Abstract: 935,225. Electromagnets. MAGNETIC DEVICES Ltd. May 21, 1962 [May 19, 1961], No. 18386/61. Class 35. The laminations of an electromagnet armature and/or core have a slight freedom of movement so that they can accommodate irregularities in their engaging surfaces. As shown, the plunger-type armature 2 consists of T-shaped laminations 9 held loosely in a U-shaped clamp 8 passing under their lower end. The arms of the clamp are secured by a bolt 14 and sleeve 13 and a rubber buffer 12 is situated between at the top of the armature to give the laminations the required freedom of movement. The core laminations are secured between side plates 6 contained within end-caps 7 which are attached to the bobbin of coil 3. The surfaces of the core against which the T head seats are slotted to receive shading rings 21 which may be located by the end-caps 7 or by springs. The armature is connected to sliding rods 15 by which it is connected to the load and to return spring 18.
Patent GB-1479536-A (GB)
Title: Fingergrip device for a syringe cartridge
IPC: A61M5/31
Filed: 1975-05-02
Abstract: 1479536 Finger supports for ampoules PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 2 May 1975 [6 May 1974] 18428/75 Heading A5R [Also in Divisions B4 and E2] A finger grip 10 for a cylindrical syringe cartridge comprises a generally cylindrical collet 30 having a cylindrical inner surface and an outer surface which tapers toward one end 36 and longitudinally extending slots 48 closed at the other end 34 of the collet and a collet sleeve 50 comprising a generally cylindrical sleeve body 52, the inner surface of which tapers toward one end 56 and which is provided at the other end 54 with outwardly extending wing portions 64, whereby in use the collet 30 is initially engaged in the sleeve 50 by a lip 60 on the sleeve mating with an annular groove 40 on the collet; the rear end of the cartridge barrel is inserted into the collet against an inturned flange 38; rearward motion of sleeve 50 relative to collet 30 and the cartridge compresses the collet onto the cartridge by interaction of the tapering surfaces of the collet and sleeve. Only that portion 46 of the collet's outer surface between slot 40 and end 36 tapers, the remainder 32 being cylindrical.
Patent GB-184343-A (GB)
Title: New or improved combination machine tool for turning, shaping, drilling, milling, andthe like
IPC: B23Q37/00
Filed: 1921-07-08
Abstract: 184,343. Barron, W., and Barren, C. A. July 8, 1921. Combined turning, drilling, and milling machines. - In a combination machine tool in which a lathe is combined with mechanism for performing drilling, slotting, milling, and like operations, the bed a is provided with vertical standards e supporting a girder f having a carriage g containing a vertical spindle h driven from the lathe headstock b through spur gearing m, clutch ma, shaft k, and bevel-gearing j. The shaft k is journaled at one end in the carriage and the other end. slides in a bearing l on one of the standards e. The vertical spindle may be positioned by rack-and-pinion gearing operated from a hand-wheel p and is provided with fine and coarse feeds controlled from hand-wheels v, s respectively. The headstock spindle carries on its outer end a large faceplate w and the bed has an extension a<1> carrying an adjustable tool rest x. In key-seating &c., a milling-cutter is carried by the spindle h and the work is either clamped to the bed and the spindle head traversed or the work is carried and fed by the lathe saddle.
Patent GB-627913-A (GB)
Title: Improvements relating to the manufacture of glass articles
IPC: H01B13/06
Filed: 1947-07-11
Abstract: 627,913. Glass-to-metal seals ; caps for discharge tubes. SYLVANIA ELECTRIC PRODUCTS, Inc. July 11, 1947, No. 18540. Convention date, Nov. 12, 1940. [Classes 36 and 38 (i)] [Also in Group XXIII] A glass header for an electron tube or electric lamp is made from a blank, or blanks, consisting of one coil of a helix produced as described in Group XXIII. The mandrel, on which the helix is formed, may be of non- circular section so as to produce a blank of such form that it is located accurately on the conductor-pins 20 which are placed in the mould 51. The moulds 51 are arranged on a horizontal rotating structure and are themselves rotated by sprockets 49 and clutches 52. In Fig. 11, two coils 22a, 23a are used, the outer coil being engaged, before the mould is closed, by a roller on a spring-pressed arm, and thereby is positioned correctly relatively to the pins 20, and, to some extent, is moulded around the pins. The projection .21 on the mould 51, produces a rudimentary exhaust tubulation. As shown in Fig. 18, two circles of pins 20, 20a are used with three coils 64, 65, 66. The inner coil 64 which is ultimately to be sealed to the exhaust tubulation, may be of " soft " glass, whilst the coils which are to be moulded around the pins are of " hard " glass. The outer coil may be of glass having the characteristics required for sealing to a metal bulb (see Group XXIII).
Patent GB-984823-A (GB)
Title: Improvements in or relating to devices comprising rotatably-arranged flange spools for winding and unwinding magnetic recording tape
IPC: G11B23/107
Filed: 1961-05-23
Abstract: 984,823. Reels. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. May 23, 1961 [May 25, 1960], No. 18565/61. Heading B8M. [Also in Division G5] A device for taking up magnetic tape comprises a spool 2 with inclined adjacent recesses 5 in the flanges extending to the hub for leading in a cylindrical threading mouse 29 on the end of the tape 9 into the hub as the spool rotates, and a stationary wall part 15, Fig. 3, or 15a, Fig. 7, near the periphery of the spool having an aperture 17 associated with a spring 16 or 25, respectively, through which aperture the mouse may be passed and urged against the edges of the flanges and subsequently into the recesses 5 formed therein as the spool rotates. The shape of the spring 16, or that of an element 28, Fig. 5, on the end of the tape 9, Fig. 8, is so designed that the outer end of the tape cannot be drawn through the aperture 17 in the stationary wall part. Two such devices, one loaded with tape, one empty, are used in an auto-threading tape recorder (Fig. 9, not shown) together with a threading means transferring the mouse from one device to the other (see Division G5).
Patent GB-830049-A (GB)
Title: Method of and means for caulking timber-built boats and similar vessels
IPC: B63B5/06
Filed: 1957-06-13
Abstract: 830,049 Caulking. MILLER, W. D. Sept. 11, 1958 [June 13, 1957], No. 18631/57. Drawings to Specification. Class 113. Side and deck seams of timber-built boats are caulked by a strip or strips of rubberised or similarly treated fabric or material being laid and hammered into the seams, the latter then being filled with marine glue, lead or other suitable material.
Patent GB-721664-A (GB)
Title: An adjustable moulding device for moulding a roll of plastic material about a longitudinal core
Inventor: DEERING JOHN EDWARD
IPC: B29C33/00
Filed: 1948-07-12
Abstract: 721,664. Moulds for electric-cable coverings &c. POSTMASTER GENERAL. Nov. 29, 1950 [July 12, 1948], No. 18637/48. Class 87 (2). A device for moulding a roll of plastic material with compression about a longitudinal core, and adjustable to encircle and mould rolls of different internal circumferences, comprises a flexible moulding band built up of a series of rigid strip elements 5 or 25a 25b' carried side by side upon flexible supporting weave 6, 7 or 26, 27 enabling the band to be curved to bring the strip element 5a or 25c at one end of the band next to a selected strip element 5b or 25d at a position in the series appropriate to form a tube of the desired internal circumference. The invention is particularly applicable to moulding thermoplastics such as polythene about an electric cable, the material being first applied and the device wrapped round it while still in the hot plastic state. The strips 5, of L-shaped section (Fig. 1) are threaded on wires 6, 7 and their inner flat surface constitutes a circumferential moulding surface when held together tightly: similarly in the arrangement shown in Fig. 3. The selected strip 5b is held against movement by collars 10, 11 secured to the wires. Alternatively one strip only, 25d, may carry clamping screws 38, 39 and be inserted where required in the series. The end strip 5a may be held by collars 14, 15, or nipples 30 may be used, as shown for the end 25c. Strips not wanted for the required circumference are slid far enough along the wires to enable the end strips to be brought together. To secure the ends, a bolt 17 passes through a handle 16 projecting from the strip 5a and through a handle 19 detachably secured to the strip 5b, each strip having an aperture for the purpose (not shown). Alternatively, as in Fig. 3. a bolt 35 on a bracket 32 pivoted to the strip 25c is inserted between pillars 42 on the strip 25d and its wing nut 36 tightened, the bracket being aligned by flanges 33, 34 thereon which fit outside the pillars. The ends of the mould are closed by the flanges 8, 9, which are tapered so as to fit together in the same plane when the band is centred (Fig. 1) so that their flanges 28a, 28b and 29a, 29b overlap. The flanges may be adjustably mounted to mould rolls of different thickness. Specifications 721.662 and 721,663, [both in Group XXXVI], are referred to.
Patent GB-1000751-A (GB)
Title: Improvements in or relating to variable resistors
IPC: H01C10/34
Filed: 1962-05-15
Abstract: 1,000,751. Variable resistors. INTERNATIONAL RESISTANCE CO. May 15, 1962 [May 22, 1961], No. 18672/62. Heading H1S. In a variable resistor the resistance element 44 is located in an annular groove in a housing 12, the ends of the resistance element being connected to pins 40 and 42 in the base of the housing. The slider is attached to a cover plate rotatably mounted in the end of the housing by a snap ring 66 locating in grooves 30 and 60 in the housing and cover respectively. The slider comprises a spring member one end of which contacts the resistance element and the other end of which bears on a plate 50 which locates in a slot 22 in the housing and is soldered or welded to a pin 38. Rotation of the cover plate and slider is limited by stops 24 and 58 moulded respectively in the housing and cover, the cover is sealed to the housing by washer 68, and the cover is provided with a screwdriver slot at one end of which is a triangular projection 64, Fig. 2, which gives the appearance of an arrow which co-operates with a scale marked by pips 34 and 36 on the end wall of the housing.
Patent GB-572196-A (GB)
Title: Fabric-covered aircraft parts
IPC: D06M15/07
Filed: 1942-10-26
Abstract: 572,196. Coated fabrics; mildew-proofing. ROXALIN FLEXIBLE FINISHES. Inc. Oct. 26, 1942, No. 18700/44. Convention date, Oct. 24, 1941. Divided out of 572,165. [Class 140] An aircraft part comprises a structural framework having a covering of textile fabric shrunk taut thereon and covered with a cellulosic dope, the fabric being impregnated with a mildew-or fungus-proofing substance. The methods of applying the dope and the mildew-proofing substance are those described in Specification 572,165. Specification 426,643, [Group III], also is referred to.
Patent GB-352214-A (GB)
Title: Thread cutting mechanism for buttonhole sewing machines
IPC: D05B65/00
Filed: 1930-06-20
Abstract: 352,214. Sewing-machines. FAIRWEATHER, W., 66, Chancery Lane, London.-(Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) June 20, 1930, No. 18833. [Class 112.] Relates to thread-cutting mechanism for eyeletend button-hole sewing machines of the type described in Specification 223,124, [Class 112, Sewing &c.], and consists in provid ing means whereby the ast needle-thread loop is freed from the urder stitch-forming devices before the final relative movement of the stitchforming mechanism is completed so that such final relative movement, instead of elongating a detained last needle-thread loop, will withdraw the freed thread of the last needle-thread loop from the under stitch-forming devices before it is severed from the work. When the work-clamp reaches its final position and the threads are cut the waste loop will be of minimum size and will be clear of the under stitch-forming mechanism. In the machine described the following parts are constructed as shown in Specification 223,124, (1) the stitchforming mechanism ; (2) the work-clamp, clampclosing and opening mechanism, button-hole cutting mechanism, stop-motion mechanism, rapid feed and stitching-feed mechanism; (3) threadcutting mechanism but without the waste needle loop gripper. The needle loop n is cast off from the loop detainer 9 by a blade 59 carried by a pivoted arm 58 which is engaged by a cam-actuated arm 63.
Patent GB-1149486-A (GB)
Title: Improvements in slag removal devices
Inventor: MARTIN JOHANNES JOSEF
IPC: F23J1/02
Filed: 1966-04-29
Abstract: 1,149,486. Slag discharge arrangement. J. J. MARTIN. 29 April, 1966 [29 April, 1965], No. 18906/66. - Heading F4B. One side of a slag outlet shaft 3 dipping into a water trough 1 has a swinging flap 4 biased to its normal vertical position by a spring 11. The swinging flap 4 may be driven and the movement of the flap 4 may be related to that of the ash plough 9.
Patent GB-575264-A (GB)
Title: Improvements in or relating to the treatment of felt and the products obtained thereby
IPC: D04H1/587
Filed: 1943-11-13
Abstract: 575,264. Waterproofing felt; agglutinated fibrous materials. DUNLOP RUBBER CO., Ltd., ROGERSON, J., and WARREN, F. W. Nov. 13, 1943, No. 18933. [Class 140] Felt is made abrasion resistant and waterproof by impregnating it with an aqueous dispersion of a mixture of a partly polymerised vinyl resin and a plasticiser, pressing to remove excess dispersion, and heating to cause the mixture to gel and the resin to undergo further polymerisation. Impregnation may be assisted by vacuum or the addition of wetting agents to the dispersion. The resin may be partly polymerised methyl methacrylate, methyl acrylate, vinyl chloride, vinyl acetate, vinyl chloride-acetate, or vinyl butyrate, and the plasticiser may be dibutyl phthalate or tricresyl phosphate. It may be dispersed in water with the aid of soap or casein. The products may be loose and felt-like, or leather-like and sultable for shoe soles.
Patent GB-673779-A (GB)
Title: Improvements in or relating to esters of chlorinated phenoxyacetic acids
IPC: C07C69/712
Filed: 1950-07-28
Abstract: Esters of 2,4-dichlorophenoxyacetic acid with a mono-ether of diethylene glycol, e.g. the methyl, ethyl, propyl, butyl, benzyl or phenyl ethers, are prepared by the ordinary esterification processes. According to an example a mixture of 2,4-dichlorophenoxyacetic acid with butyl "carbitol" is heated gradually to 175-180 DEG  C.  The resulting ester is cooled, washed in succession with dilute triethanolamine solution and water, and dried by treatment with anhydrous sodium sulphate.
Patent GB-230777-A (GB)
Title: Improvements in tungsten arc lamps
IPC: H01J61/54
Filed: 1924-08-09
Abstract: 230,777. General Electric Co., Ltd., (Assignees of Patent Treuhand-Ges. f³r Elektrische Gl³hlampen). March 13, 1924, [Convention date]. Arc lamps. - Tungsten electrodes g, h are held by resilient supports e, f against a disc k of oxidecontaining material. On making the circuit, current flows between the electrodes through the disc and through a resistance m connected in the support e heating a bimetallic strip l in the disc support i. The disc thereupon moves' out of contact first with one electrode and then with the other, this being ensured by making the supports of unequal resilience or otherwise. An arc strikes between the disc and the first electrode and subsequently between the two main electrodes. The disc k is preferably made of a mixture of tungsten and thorium oxide. It may be coated with an alkaline earth metal, for example, by decomposition of barium azide. The disc may be of iron or other metal if coated with barium or other active material. When using direct current, the electrode which first moves away from the disc is connected as anode. A resistance or, in the case of alternating current, a choking coil, is connected in series with the lamp. The bimetallic strip l may be arranged so as to give an oblique motion to the disc k. Alternatively, bimetallic strips of different strengths or shapes may be arranged in the electrode supports. Alternatively, the disc k may be moved electromagnetically.
Patent GB-283080-A (GB)
Title: Improvements in or relating to brake devices for lifeboats
IPC: B63B23/18
Filed: 1927-07-18
Abstract: 283,080. Libani, R. July 18, 1927. Addition to 233,995. Boat-lowering gear.-A fluid-friction brake for controlling the lowering of ships' lifeboats comprises a drum 1 on which the falls are wound. A piston 2 sliding inside the drum has a screwthreaded stem 13 which works in a nut constituted by the forward end of a fixed hollow member 19 the external surface of which forms a bearing for the drum 1. The piston 2 is guided by a fixed angular member 18 which engages in a complementary recess in the stem 13. The bearing 6 supporting the other end of the drum as well as the far end of the hollow member 19 are connected by an external tube controlled by a stop cock. The whole of the system, including the interior of the drum, the hollow member 19 and the external table, is filled with a suitable fluid, a leak 20 establishing connection between the member 19 and the drum. During lowering operations, liquid under the control of the stop cock flows from one side of the piston to the other, suitable leaks being formed in the bearing 5. Specification 270,615 is referred to.
Patent GB-147114-A (GB)
Title: Improvements in calculating machines
IPC: G06C23/04
Filed: 1920-07-07
Abstract: 147,114. Trinks, F. Sept. 23, 1914, [Convention date]. Adding and subtracting apparatus.-Relates to machines of the cam-disk and pin-wheel type, and consists in an arrangement of the locking-pawl, which on attempting to operate the main crank engages a recess in the spindle of the setting- mochanism and prevents rotation of the pin-wheels when an inexact adjustment of the cam disks has taken place. As usual, each cam disk z is provided with teeth d which are engaged by a coneheaded spring bolt e the stem of which passes through an aperture in the hollow spindle n of the pin-wheels into an aperture f in the solid spindle g which previously was fixed. In the present arrangement, the spindle g is rotatable, and is connected by a slotted crank o and crank and pin q, p to a spindle m carrying a cam l bearing against a pawl s normally held down by a spring. Upon attempting to turn the crank-handle v after an inexact adjustment of a cam-disk, the stem of the bolt e on rotating carries around the shaft g and forces the pawl s into a recess in a disk v on the spindle n, thus locking it and the crankhandle.
Patent GB-875179-A (GB)
Title: Improvements relating to reinforced flexible pipes
Inventor: EDWARD LESLIE DAVEY WILLIAM YO
IPC: B29C53/58
Filed: 1959-06-04
Abstract: 875,179. Reinforced flexible pipes. BRITISH INSULATED CALLENDER'S (SUBMARINE CABLES) Ltd. May 30, 1960 [June 4, 1959], No. 19152 /59. Drawings to Specification. Class 99(2). A multilayered reinforced flexible pipe has a wall of relatively inelastomeric plastics material of a relatively low tensile strength reinforced by three or more consecutive layers of tapes of material of relatively high tensile strength and high modulus of elasticity so disposed that the angle of lay of each layer is less than the preceding one, so that in applying tension to the reinforced pipe each layer grips the next underlying one. The term " relatively inelastomeric plastics material " means a plastics material capable of some elastic deformation but considerably less than a true elastomer, such as natural or synthetic rubber. Preferably the angle of lay of the innermost of the three layers is greater by about 5 to 20 degrees than that of the second layer and the lay angle of the second is greater by about 1 to 10 degrees than that of the third layer. The flexible tube may be made of polyvinyl chloride or polyethylene and the reinforcing tapes of metal, e.g. steel. The reinforcing layers are applied over a bedding layer, e.g. cotton tape.
Patent GB-1301187-A (GB)
Title: Graft polymeric substrate
IPC: C08F291/00
Filed: 1970-04-22
Abstract: 1301187 Ion-exchange membranes for electrodialysis ASAHI KASEI KOGYO KK 22 April 1970 [26 April 1969] 19188/70 Heading C7B [Also in Divisions B1 C3] Ion-exchange membranes for use in electrodialysis comprise a crosslinked resin graft polymerized to a fabric embedded in the resin, the fabric before graft polymerization having voids of uniform size uniformly distributed therein and a free space content of 10 to 90%, the voids being filled with the resin, which is derived from at least one monomer having an ion-exchange group or a functional group capable of introducing an ion-exchange group. The membranes have a specific conductance of 0À5 to 20 x 10<SP>-3</SP>ohms<SP>-1</SP>cm<SP>-1</SP>. In the examples the membranes comprise (a) polypropylene mesh cloth grafted with 2-vinyl-5- ethylpyridene or 4-vinylpyridine, styrene and divinyl benzene, the graft polymer being quaterrized with methyl iodide; (b) polypropylene or polyacrylonitride cloth grafted with styrene and divinylbenzene, the graft polymer being sulphonated; (c) nylon cloth grafted with 1-vinyl-2- methylimidazole, and styrene, the graft polymer being quaterized as in (a); (d) polypropylene cloth grafted with acrylic acid, or n-butyl vinylsulphonate, styrene and divinyl benzene, the graft polymer being treated with NaOH; (e) polypropylene cloth grafted as in (b), the graft polymer being chloromethylated and then aminated with trimethylamine. The polypropylene anion and cationexchange membranes prepared as in (a) and (b) are tested in a multi-compartment electrodialysis apparatus, to which is applied a direct current of 8A and into which sea water is introduced. The cation-exchange membrane prepared as in (d) from polypropylene, acrylic acid styrene and divinylbenzene is used in the electrolysis of sodium chloride using 5N-NaOH as catholyte and 5N-Na Cl as anolyte.
Patent GB-631041-A (GB)
Title: Improvements in asymmetrical electrical conducting devices
IPC: H01L21/16
Filed: 1947-07-18
Abstract: A copper oxide rectifier element is formed from copper to which has been added up to .55 per cent by weight of lead oxide or thallium oxide, or thallium, for the purpose of improving the rectifier characteristics by increasing the resistance in both the forward and reverse directions.  Additions may comprise 0.055, 0.108 or 0.537 per cent lead oxide; 0.056 or 0.336 per cent thallium oxide; or 0.2, 0.3 or 0.5 per cent thallium.  The oxide surface may be formed by heating in an oxidizing atmosphere at 1000 DEG C. for 10 minutes, then heating at 500 DEG C. for 3 minutes and then quenching.
Patent GB-894210-A (GB)
Title: Improvements in or relating to electrostatic electron beam focussing devices
Inventor: HOGG HAROLD ALEXANDER CECIL
IPC: H01J23/083
Filed: 1959-06-05
Abstract: 894,210. Travelling-wave tubes. M-O VALVE CO. Ltd. June 2, 1960 [June 5, 1959], No. 19396/59. Class 39(1) An electrostatic beam focusing structure, particularly for a travelling-wave tube, consists of a pair of periodic plates 1, 2, Fig. 4, e.g. at least one forming the teeth or rungs of a comb-like or ladder-like delay line, and a pair of further plates 5, 6. The elements of the periodic plates 1, 2 are in register with one another and the periodic plates 1, 2 are at a positive potential with respect to the further metal plates 5, 6. The electron beam 12 has the form shown. Projecting pins 10 prevent lateral dispersion of the beam. In the modification, Fig. 5, parts of the elements of one periodic plate are disposed opposite parts of the gaps of the other periodic plate. The periods of the periodic plates may be different. The travelling-wave tube may be a backward-wave oscillator or an amplifier. Suitable dimensions are given.