baber/WOPTO huggingface dataset:
Patent GB-784761-A (GB)
Title: Method of and apparatus for producing coils photographically
IPC: H05K1/16
Filed: 1955-08-11
Abstract: 784,761. Photographic production of inductance coils; contact printing apparatus. ALADDIN INDUSTRIES, Inc. Aug. 11, 1955 [Aug. 18, 1954], No. 23208/55. Class 98(2) Inductance coils are produced by exposing a cylindrical insulating former coated with at least one conductive layer and a photo-resist composition, through a mask of skewed strips constituting developed convolutions of the ultimate coil winding, dissolving away the unexposed portions and etching the conductive layer. In an example a cylindrical tube or rod of insulating material such as glass or synthetic resin is silvered, preferably by immersion in stannous chloride and hydrochloric acid, washing and immersion in ammoniacal silver and formaldehyde. The silver layer is then coated with copper as by electroplating and then another thin layer of silver is applied as by flash coating in a bath of silver and potassium cyanides. This second silver coating acts as a reflecting layer and reduces the exposure time of the lightsensitive layer which is next applied and may be any photo-engraving enamel such as bichromated colloid. The sensitive layer is then exposed through the mask and the unexposed portions removed in the usual manner. The silver layer so exposed and the underlying copper are etched away with ferric chloride and the bottom layer of silver is then removed with a solution of potassium ferricyanide and sodium thiosulphate. The resist may then be removed to leave helical turns of metal on the insulating cylinder, and the product may be coated all over with a styrene resin. The mask is formed by photographing a frame carrying skew bars set up in the form of the pattern required. This mask may then be wrapped round the sensitized cylinder and exposed from all directions. Alternatively the mask may be part of a band which is moved over and in contact with the surface of the cylinder as it rotates past a light source, and an apparatus for performing this operation is shown in Fig. 6. The transparency 28 is wound between rollers 47, 48 across the light sensitive cylindrical blank 18 which is supported on idle rollers 56. Rollers 47, 48, 56 are driven from a motor 74 by worm 75 and belt 76. Exposure is by a lamp 80, and pressure rollers 58 are provided on top of the cylinder 18.
Patent GB-262536-A (GB)
Title: Improvements in or relating to devices for controlling windows and the like
IPC: E05F11/38
Filed: 1925-09-17
Abstract: 262,536. Quick, W., Thomas, S. E., and Berwick, F. W. Sept. 17, 1925. Vehicle-window opening and closing apparatus.-A hand-operated sprocket-andchain window regulator comprising a squared spindle 2, handle 3, and sprocket 8, is braked by fixed fibre discs 5, 6, which are engaged by the sprocket 8 and a floating washer 7 under the action of the spring 10. The regulator is mounted in a cup-shaped housing in the garnish rail, the spindle bearings being the fibre discs 5, 6, 12 which engage a fixed bush 4 and the handle boss 9, respectively. The spindle of the lower sprocket is mounted in a spring - controlled pivoted lever 16a. The stud 26 mounted on the chain engages a bayonet slot in the bottom sash and in the closed position rests in an end recess of the slot to prevent further movement. An opening in the slot allows the window to be removed. A device may be provided for releasing the pressure of the spring to allow the window to move under the action of gravity.
Patent GB-401328-A (GB)
Title: Improvements in or relating to photographic cameras with telemeters
IPC: G03B13/20
Filed: 1932-03-09
Abstract: 401,328. Cameras. ZEISS IKON AKT.-GES., 72, Schandauerstrasse, Dresden, Germany. March 9, 1932, No. 23263/33. Divided on 398,230 and addition to 378,347. [Class 98 (i).] To provide for lenses of different focal length in an arrangement according to the parent Specification in which a cam on the screw mounted lens sleeve controls the movable mirror of a base telemeter, two or more alternative control cams are arranged on the lens sleeve. In one arrangement the sleeve 7, Fig. 1, acting on the telemeter lever 3 has two or more cams 5, 6 circumferentially spaced in sequence. Alternative corresponding lenses are removably mounted on the sleeve as by a bayonet joint 11. In another arrangement two or more cam sleeves 7a, 7b, Fig. 4, with end cams 12, 13 are coaxially mounted on the sleeve 7 which itself has an end cam or cams 14. The end 4 of the telemeter lever 3 spans all the sleeves. Any one cam may be brought into action as by means of a pin on the sleeve 7, slots 12a, 13a in the cam sleeves 7a, 7b, and inner cam ends 12b, 13b on these sleeves adapted to be engaged by a ring 19 rotatably mounted on the sleeve 7. This may be set by a gear 21 from external operating means.
Patent GB-379842-A (GB)
Title: Improvements in and relating to chains for use in connection with hand-gear for raising and lowering sliding window sashes, doors, blackboards and the like
IPC: F16G13/06
Filed: 1931-08-18
Abstract: 379,842. Chains ; window regulators. HUGHES, B. D., Charing Cross Road, London. Aug. 18, 1931, No. 23271. [Class 24.] A chain for use in connection with hand gear for raising and lowering sliding window sashes, doors, blackboards, &c., consists of a combination of links of metal and fibre &c. reinforced by plates of metal. In the construction described, the metal links 2, as shown in the Figure, are flat plates riveted between two outer flat links 1 of fibre &c. faced with metal 3. The facing 3 may be on the outside of the links. In a further modification the fibre links may be secured between a pair of metal links.
Patent GB-782419-A (GB)
Title: Improvements in or relating to the unwinding of yarn
Inventor: PERKINS WILLIAM
IPC: D01H1/18
Filed: 1954-08-11
Abstract: 782,419. Knitting-machines. BRITISH NYLON SPINNERS, Ltd. Aug. 9, 1965 [Aug. 11, 1954], No. 23297/54. Class 74 (2). The sloughing of loose coils from the lower end of a yarn package 11 (due to the intermittent nature of the supply to a knitting machine) is prevented by a series of upstanding resilient loops 7, 17 (e.g. of nylon monofil) surrounding a package-locating boss 3, those 7 overlapping to define an enclosed space in the absence of a package, but all bearing electrically on the outer periphery 13 of the lower end of the package when the package is in position. The smaller loops 17, within the larger loops 7, help to maintain a sufficient pressure on a nearly unwound package, by reason of their greater stiffness.
Patent GB-282174-A (GB)
Title: An improved method of and apparatus for projecting kinematograph films
IPC: G03B21/32
Filed: 1926-09-21
Abstract: 282,174. Waley, H. D. Sept 21, 1926. Kinematograph apparatus.-An endless film is wound in a double layer on a spool a<1>, from which it is unwound to a second spool a, one layer passing straight to the second spool and the other layer passing through the projector; the positions of the spools are reversed after exhibition of each part of the film in order that the other part may be exhibited. continuous and repeated exhibition being thus obtained. The spools are rotatably mounted on spindles at the ends of a rotatable member b, and consist, as shown in Fig. 6, of a disc 4 having holes through which project pins i carried by a disc 6 secured to a friction wheel v slidable along the spindle 5 against the action of a spring z. The spool serving as a take-up spool a is driven by the engagement of the wheel v with a wheel g carried on a pivoted arm and driven by chain gearing from the lower sprocket 15 of the projector. When the film is wholly unwound from the spool a<1>, it extends straight from a roller l to the spool a, thus depressing a roller h, on a pivoted arm h<1> having a detent which normally engages a stud k on a lever 22 carrying the roller l. The tension of the film then raises the roller l, and a projection m connected to its shaft turns a swinging plate n so that a stud p thereon moves to free a projection q on the member b. The weight of the film on the spool a then causes the member b to turn on its pivot c until the positions of the spools are reversed. The pivot c carries a mutilated friction wheel which, at the beginning of the turning movement, is rotated so as to come into driving engagement with a friction wheel driven from the projector, and, at the end of the turning movement, to pass again out of driving engagement; the temporary driving engagement assists in turning the member b. Levers are provided, one of which, at the beginning of each turning movement of the member b, is caused by a cam on the pivot c to withdraw the pins of the spool a' through the disc 4 and free the film, the cam being such as to cause the pins to protrude again through the disc 4 as it passes beneath the guide wand thus engage the film passing from the guide. The spool a<1>, when the turning movement of the member b is complete is in driving connection with the wheel g, and is driven until the film is fully unwound from the spool a ; the member b then makes another half turn, as before, to produce a continuous exhibition. Brackets 3 radiate from the ends of the member b and carry rollers 2 engaging the edges of the film coils.
Patent GB-598813-A (GB)
Title: Improvements in or relating to transport-planes
IPC: B64C39/02
Filed: 1945-09-11
Abstract: 598,813. Aeroplanes. SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES DU SUD-EST. Sept. 11, 1945, No. 23431. Convention date, Sept. 12, 1944. [Class 4] In transport planes of the type in which the freight-containing portion of the aircraft or hold may be separated from the main structure, - the plane is constructed so as to form with the totality of its essential elements (such as wings, engines, pilot's cock-pit, rear portion of the fuselage, fins and control surfaces) a complete unit 22, to the under-forward portion of which is fixed the detachable hold 12, which may be made to carry parts of the undercarriage as well as the controls thereof. In Fig. 1 is shown the unit 22 (unhatched) to the underforward portion of which the hold 12 (hatched) is connected by members such as 2, 3, 4, 5, 6 and 11 (see Fig. 3). Two main landing wheels 14, 15 are carried by the hold and their gauge is such as to make them fit for road use. Two side wheels 16, 17 (which may be retractable) are fixed to the wings 23 for transverse balancing when running on uneven ground or subjected to a beam wind. Wheels 18 are rigidly mounted on the hold and they may serve for the hold's travel by road or, if of larger gauge, be retractable into hold part 20 for towing the hold on a road by carrier-tractor 21, the side wheels 16, 17 not being then required ; if a narrow-gauge or single-track forward gear is provided, an ordinary tractor can be used. The connecting members for the hold admit of angular movements. When the hold has been detached, the unit 22 may be strengthened by the attachment of struts 26, 27. For attaching or detaching the hold, separate wheeled supports 30 for the wings may be used ; or the wing-tip wheels 16, 17 may be -made adjustable as supports when required.
Patent GB-732203-A (GB)
Title: Anchoring projectile to be driven into metals by means of driving gas pressure
IPC: F16B19/14
Filed: 1953-08-25
Abstract: 732,203. Projectiles for cartridge-operated tools. ANSTALT FUR MONTAGETECHNIK. Aug. 25, 1953 [Aug. 25, 1952], No. 23446/53. Class 9(1). Projectile-like bolt to be fired into metal has an ogival nose 1 behind which is a frusto-conical bulge 3 merging into the frusto-conical stem 5 which is surmounted by a cylindrical head 9. The bulge 3 has a knurled surface, the ribs 18 so formed being inclined to the axis of the bolt.
Patent GB-598821-A (GB)
Title: Improvements in paint brushes bristled with synthetic filaments
IPC: A46D1/00
Filed: 1945-09-12
Abstract: 598,821. Paint brushes. DU PONT DE NEMOURS & CO., E. I. Sept. 12, 1945, No. 23505. Convention date, Sept. 21, 1944. Drawings to Specification. [Class 19] A paint brush bristled with tapered synthetic bristles and having improved paint pick-up, is characterised by from 10 to 100 per cent of the full length filaments thereof being waved, the amplitude of the waves being from 0.002 to 0.105 inches and the period of the wave being from .08 to 1.4 inches ; preferably from ¢ to <2>/3 of the length of the bristles from their tips should be waved, the remainder of their length being straight. The filaments may be waved by heating them under light pressure between two pieces of expanded metal screening, the butt ends being held straight between rubber pads of approximately the same thickness as the metal screening. The preferred filaments are made from polyamides of the type disclosed in Specification 461,236, [Group IV], and U.S.A.. Specifications 2,071,250 and 2,130,948, especially polyhexamethylene-sebacamide or -adipamide modified with phenol-aldehyde resins ; dyes, pigments, fillers, water - repellents and plasticisers or other modifiers may be present. Cellulose triacetate filaments are also suitable. The filaments may be tapered as described in Specification 535,263, [Group IV].
Patent GB-626431-A (GB)
Title: Improved method of producing flattened glass tubing
IPC: C03B23/055
Filed: 1947-08-26
Abstract: 626,431. Glass tubing. CASSELLE, L. C. Aug. 26, 1947, No. 23577. [Class 56] Flattened glass tubing is made from round tubing by placing the latter over a core comprising a flat bar with rounded edges, heating it and moving it to and fro between rollers whilst it is still on the core, the axis of the tubing being parallel to that of the rollers. In the form shown the tube 1 and core 2 are supported in saddle members 10 forming part of a carriage 11 reciprocated horizontally by a lever and link mechanism 31. Approximate positioning of the rollers 3 is effected by a screw and nut mechanism 20, 22, and final positioning by a linkage 24, 26 operated by a Bowden wire mechanism 29 carried on the lever 31. To prevent rotation of the core during its passage with the tubing between the rollers handle 2a of the core is provided with a plate 34 having two flat sides 35 one of which is engaged by the free end of a lever 36 when the latter is rotated clockwise by a cam 37 during the forward travel of the carriage, the lever being freed by a stop 38 on the return movement of the carriage.
Patent GB-461967-A (GB)
Title: Improvements in and relating to autographic registers
IPC: B41L5/00
Filed: 1935-08-22
Abstract: 461,967. Autographic recorders. LAMSON PARAGON SUPPLY CO., Ltd., and GARWOOD, V. W. Aug. 22, 1935, No. 23588. [Class 16] [Also in Group XIX] An autographic recorder having a fixed writing plate 2 is provided with an additional writing plate 4 in the form of a slide that is movable transversely of the record strips and beneath an aperture 3 in the fixed writing plate by means independent of the operating means for the recorder, the slide being withdrawable from the recorder to receive a card or the like on which the entry is to be duplicated. The slide is withdrawable manually from the recorder by a handle 7, such movement being limited by a stop 8. Inward movement is effected by a spring 21, and is controlled by an escapement mechanism comprising a pair of spring-urged pawls 15, 16 that co-operate with a pair of racks 13, 14 on the slide and are adapted to be released alternately by the rocking of a T-shaped lever 17. Specifications 136,116 and 229,616, [both in Class 16], are referred to.
Patent GB-1272276-A (GB)
Title: A card insertion device for a bookkeeping machine
Inventor: NIXDORF HEINZ
IPC: B41J11/55
Filed: 1969-05-08
Abstract: 1,272,276. Feeding sheets. H. NIXDORF. 8 May, 1969 [11 May, 1968], No. 23589/69. Heading B8R. Cards 4 are inserted manually into the card compartment of a book-keeping machine to be taken over by the automatic feed mechanism of the machine, and a first light barrier 1, I1<SP>1</SP> senses the presence of a card and starts the machine feed mechanism, switching on a second light barrier 2, 2<SP>1</SP>, which directs if the card is correctly guided, and if not stops the machine feed mechanism.
Patent GB-1116457-A (GB)
Title: Device for striking off the connectors from the link pins of track links
IPC: B62D55/32
Filed: 1966-05-26
Abstract: 1,116,457. Extracting tools. SCHMIEDETOTO STANZWERKE HALVER G.m.b.H. 26 May, 1966 [15 June, 1965], No. 23642/66. Heading B4C. A device for extracting the connectors 3 from the link pins 2 of track links 1 such as used in tracks for an armoured vehicle, comprises an impact mandrel 5 having a prismatic-shaped portion 5b adapted to be passed through a similar shaped opening 4a in a chain-guiding tooth 4, the device being provided with a, preferably, detachable support 6 and a working head portion 5d. As shown, the support 6 is formed by two wedges arranged to extend across to adjacent links, the wedges being connected to the mandrel by means of a chain; alternatively the support may be in the form of a block having an opening through which the portion 5 passes and a rib (7b, Fig. 10) adapted to fit the gap between two links. In a further modification the support may be secured, as by welding, to the mandrel. In use the end 5a of the mandrel is struck by a hammer.
Patent GB-1286940-A (GB)
Title: Improvements in pressure gauges
Inventor: ALINARI CARLO
IPC: B63C11/02
Filed: 1971-04-19
Abstract: 1286940 Pressure gauges C ALINARI 19 April 1971 [14 March 1970] 23934/71 Heading G1L In a pressure gauge suitable for immersion in a liquid, a Bourdon tube gauge is housed in a body 10 and is connected to a nipple 22 by means of which the gauge is held in position by a nut 40 in a one piece resilient casing 24, which makes a sealing contact with the edge of a transparent disc 18, clamped by a metal ring 30, and in which the nipple 22 terminates in a chamber filled with an inert liquid and formed with a membrane 44 which is sensitive to the pressure of the surrounding atmosphere so as to transmit pressure variations through the inert liquid to the Bourdon gauge. A groove 50 in the nipple ensures that liquid may enter the nipple 22 when the membrane 44 is pressed against the nipple end.
Patent GB-1285159-A (GB)
Title: Method of making powdered silicone rubber
IPC: C08L83/04
Filed: 1971-04-19
Abstract: 1285159 Powdered silicone rubber DOW CORNING CORP 19 April 1971 [22 May 1970] 24016/71 Heading C3T In a method of making powdered silicone rubber 100 parts wt. of a diorganopolysiloxane gum having a Williams plasticity of at least 0À050 inch and a unit formula R 2 SiO in which R is a hydrocarbon or a halogenated hydrocarbon radical are dispersed in a volatile organic solvent together with at least 30 parts wt. of silica filler and then the solvent dispersion is dried using a method which involves the minimum of shear, preferably by spray drying. The dispersion may be heated prior to spray drying. The powder can be mixed with a curing agent such as 2,4- dichlorobenzoyl peroxide to cause the material to mass for moulding operations. Suitable fillers include fume silica, silica aerogel, silica xerogel, silica soot, quartz and glass powder or frit. Silica fillers treated with chlorosilanes, diorganocyclosiloxanes, hexaorganodisiloxane and organosilazanes can also be used. Suitable organic solvents include perchloroethylene, chlorinated ethylenes, heptane, hexane, toluene, xylene and cyclic solixanes. Uses.-Moulding and extrusion.
Patent GB-1114305-A (GB)
Title: Apparatus for forming capacitor rolls
Inventor: SLIWINSKI ALBERT
IPC: H01G13/02
Filed: 1965-06-08
Abstract: 1,114,305. Winding capacitors. ELEKTROMAT VEB. 8 June, 1965, No. 24081/65. Heading B6B. [Also in Divisions F2 and H1] Each component 4 of a two-part mandrel in a capacitor winding machine moves axially relative to an ejector sleeve 2. Each component 4 is held by a collet (3, Fig. 1) fixed to an axially movable drive shaft (6), which is splined to a driving gear (10) and the ejector sleeve 2. The component parts 4 resiliently splay outwards when their free ends are disengaged from the collets (3).
Patent GB-627944-A (GB)
Title: Improvements in artificial hands
IPC: A61F2/58
Filed: 1947-09-02
Abstract: 627,944. Artificial hands. PICKNELL, M. D. Sept. 2, 1947, No. 24173. [Class 81(ii)] An artificial hand of the kind including a wrist element rotatably mounted in a socket secured to the forearm and having a pair of opposed artificial fingers operated by cords, is characterized in that one or both of the fingers is or are urged into the closed position by a spring housed in the hollow stem forming the wrist. As shown in Fig. 2, a socket 10 is provided with a block 14 fitted with a bearing tube 15 which receives a wrist member 16 rotatable therein. Finger members 27 pivoted to the member 16, Fig. 6, at 56 are operated by a rod 47 having a slot 55 which acts upon pins 59 on the fingers, the rod being operated by means of a lever 24, Fig. 2, and plunger 19, to open the fingers against pressure of springs 49 and 20. The wrist member has a circular plate 29 provided with holes 46 which are engaged by spring- pressed balls 28 mounted in the block 14, to provide positive location at a number of angularly-spaced positions, a bolt 32 serving to lock the wrist when required. Axial movement of the wrist is prevented by a locking lever 38 which engages a circumferential groove 40 in the wrist. In a modification, Fig. 7, when rod 47 is advanced, pins 65, 66 on the fingers ride in slots 63, producing movement of the fingers in parallel directions, until pins 65 abut against the outer limits of the slots, when further movement of the rod causes the fingers to pivot about the pins 65.
Patent GB-919324-A (GB)
Title: New synthetic resins
IPC: C08F20/12
Filed: 1960-07-11
Abstract: Compounds of the formula: R1.CO.O.CH(R2).O.CO.C(R3):CH2 in which R1 represents an alkyl group, R2 represents a substituted or unsubstituted alkyl group, which may be straight or branched chained, and R3 represents a hydrogen atom or a methyl group, or, when R2 represents a halogen-substituted or branched chained alkyl group, R1 represents a vinyl or propenyl group are homopolymerized or copolymerized with one or more ethylenically unsaturated monomers. Monomers specified of the above general formula are ethylidene acetate-acrylate and acetate-methacrylate, propylidene butyrate-methacrylate, trichloroethylidene diacrylate and dimethacrylate and trichloroethylidene diesters having two different ester groups. Copolymerizable monomers specified are acrylic and methacrylic acids, esters, amides and nitriles, vinyl acetate and styrene. The examples describe the use of methyl methacrylate, with or without methyl acrylate or acrylonitrile, as a comonomer; the polymerization being carried out with the aid of azodiisobutyronitrile.  In an alternative procedure polyvinyl chloride may be dissolved in trichloroethylidene dimethacrylate and the resulting solution polymerized with, if desired, the addition of methyl methacrylate.