baber/WOPTO huggingface dataset:
Patent GB-806994-A (GB)
Title: Sewing machine
IPC: D05B39/00
Filed: 1957-01-31
Abstract: 806,994. Sewing machines. SINGER MANUFACTURING CO. Jan. 31, 1957 [March 5, 1956], No. 3392/57. Class 112 In a sewing machine 10, Fig. 1, for forming a seam automatically along a predetermined contour; the means for presenting the edge of the work blank to the work feeding elements comprises a work-holder 16 shaped to the said contour and having a pair of spaced guide elements 22, 23 engaged with a continuous cam track 15 formed on a work-holder support 13. The requisite turning movements are thus imparted to the work-holder as the work is fed to the stitching elements. Auxiliary work feeding means comprising a motor 27, Fig. 4, mounted upon the armature of a solenoid 3, assist in rotating the work-holder when a particular part of the contour having the form of a circular arc about the guide element 23 is reached. The operation of the limit switch LS2 by the guide element 22 starts the motor and energizes the solenoid to bring the pin 30, eccentrically disposed on the flange 27, into driving engagement with one of the apertures 25 disposed in a hub 24 carrying the guide element 23. Rotation of the work-holder continues until the element 22 engages the limit switch LS1. Control means are described providing automatic sewing of a complete seam. Specification 795,637 [Group XXIV] is referred to.
Patent GB-698638-A (GB)
Title: Improvements in or relating to magnetically anisotropic permanent magnets
IPC: H01F1/04
Filed: 1951-02-14
Abstract: 698,638. Permanent magnets. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 14, 1951 [June 17, 1950], No. 3577/51. Class 35. [Also in Group XXII] The length of a magnetically anisotropic permanent magnet made from an alloy of Fe, Ni, Al, and Co with optionally other metals, in the substantially coincident magnetization and [100] crystalline directions is less than 3/4 of any other dimension and preferably equal to 1/ 8  of the smallest other dimension. Because of the comparatively small length of such a magnet, the regions 6 of horizontal crystal growth when the magnet is produced by the chill casting process described in Specification 181/49 (as open to inspection under Sect. 91), amounts to less than 30 per cent of the total volume of the magnet. Two (or more) such magnets 7, 8 may be united by one (or more) yokes 9, Fig. 4, or may be joined together to form a larger magnet as at 10 in a loud-speaker magnet system, Fig. 5. Despite the airgap the two magnets may have a higher (BH) maximum than a single magnet of the same dimensions. Specifications 522,731, [Group II], and 660,580, [Group XXII], are referred to.
Patent GB-919663-A (GB)
Title: Rolling mill
IPC: B21H1/02
Filed: 1961-01-31
Abstract: 919,663. Rolling discs. KELSEY-HAYES CO. Jan. 31, 1961 [Feb. 3, 1960], No. 3598/61. Class 83 (4). In a mill for rolling discs to a tapered contour, a pair of rolls is moved axially during rolling, each roll having a freely rotatable confining portion which constrains and partially reduces the disc before reduction by the rolling portion of the roll. As shown, on each side of two discs D, rotated by a support 22 for rolling simultaneously, are pairs of rolls 51b, 52b and 51a, 52a which, when moved axially are caused to pivot at 54, rollers 81b and 82b on the roll housings moving along wedges 83b and 84b to reduce the pass and taper the discs. A cylinder 67, Fig. 1, moves the rolls axially, a rod 75 and rack and pinion ensuring equal movement of both roll pairs. A doubleacting cylinder 36 firmly holds the discs against the support 22, and wedges 90b and 91b, adjustable by cylinders 92 and 93b allow the width of the pass to vary. The roll pairs are driven by motors 60a and 60b. The freelyrotatable portion 118 of rolls 111 and 110, Fig. 3, are held in bearing surfaces 120, 122 and 124.
Patent GB-700372-A (GB)
Title: Improved drive arrangement for advertising or like display fields
IPC: G09F11/26
Filed: 1951-02-14
Abstract: 700,372. Changing signs. SZAIKA, A. Feb. 14, 1951, No. 3605/51. Class 3(1) [Also in Group XXIV] An endless belt is periodically advanced over equal distances by means of a continuously-rotating motor which winds up a spiral spring. A belt 14 carrying advertisements is guided by rollers 8- 13 and passes between a lamp and a window in the hinged wall 2 of a casing. The belt is tensioned by the weight of a slidable roller 11 and is driven by the roller 8, whose circumference is preferably equal to the length of an advertising section. An electric motor 27 is geared to a toothed casing 20 secured to a spiral spring 21 the other end of which is fastened to the shaft of the roller 8. Secured to this shaft is a disc 29 having a projection coacting with a projection on a spring-loaded lever 32 which is pivoted at 31 and carries a pawl 35 actuated by a cam disc 36 rotating with the gear 23. By this means the spring 21 is wound up while the roller 8 is stationary and is released to rotate the roller by one revolution each time the disc 36 performs a revolution. A roller 40 whose ends are mounted respectively in a fixed post and in a swingable lever is pressed against the belt 14 by a hook 43. A centrifugal brake (not shown) on the shaft of the roller 8 ensures a uniform unwinding of the spring 21. In a modification, Fig. 6, the disc 29 is replaced by a wheel 45 geared to a centrifugal brake, comprising flexible radial blades 48, and thence to a roller 52 braked by a spring-loaded lever 57. The lever 57 is pivoted at 55 and carries a roller 58 which rides on the belt 14 while the spring 21 is unwinding and then drops into a slot in the belt corresponding to an advertising section, thereby braking the roller 52 and stopping the belt. The lever 57 is rocked to disengage the brake when the spring has been wound up by a lever, Fig. 5 (not shown), actuated by a continuously-rotating cam disc 64.
Patent GB-177124-A (GB)
Title: Improvements in and relating to wrist joints for artificial arms
IPC: A61F2/58
Filed: 1920-12-13
Abstract: 177,124. Hoare, C. G., and Waters, T. C. Dec. 13, 1920. Limbs, artificial.-Relates to wrist joints permitting relative rotation of two adjacent parts which may be easily assembled or disconnected. A detachable wrist-piece V carries two end flanges or caps V<1>, O; cne cap O carries an axial pin P which fits in a central hole in a disc R fitted at the end of the forearm; a spring- held lever U engages a groove in the end of the pin to hold the wristpiece in position. The adjacent surfaces of the disc R and cap O are provided with steel plates Q, S, the lower plate Q being pierced by a series of holes Q<1>, Q<2> arranged in a circle. The disc R carries one or more spring-pressed balls, which engage the small holes Q<1> in the lower plate Q and temporarily locate the wrist-piece in different axial positions; a spring-bolt T drops into the larger holes Q<2> to lock the wrist-piece in each position. The lower cap V<1> of the wrist-piece is provided with a central socket to receive the shanks of tools or other fittings.
Patent GB-565669-A (GB)
Title: Improvements in the cylinder-heads of internal-combustion engines
IPC: F02F1/04
Filed: 1940-03-01
Abstract: 565,669. Cylinder heads ; cooling. BRISTOL AEROPLANE CO., Ltd., CROWE, R. K., and MANSELL, H. C. March 1, 1940, No. 3915. [Class 7 (ii)] In a depending cylinder head for sleevevalve engines formed in two parts 10, 19 in order to facilitate the formation of cooling- fins 21 on the base part 19, the two parts are formed with complementary surfaces which interengage by an interference fit, for example by a shrinking-on process. Preferably, the base part 19 is formed with a shoulder 22 and spigot 20 fitting in a socket 23 on the part 10. The surface 23 may be slightly dovetailed. The grooves 24 for the scaling-rings for the sleeve valve are formed either in the part 19 as shown, or in the part 10.
Patent GB-1076982-A (GB)
Title: Connecting devices
Inventor: RAVEN ANTHONY DAVID
IPC: H01R35/02
Filed: 1964-01-30
Abstract: 1,076,982. Television cameras. ENGLISH ELECTRIC CO. Ltd. Feb. 5, 1965 [Jan. 30, 1964], No. 3919/65. Heading H4F. [Also in Divisions F2 and G6] A servicing machine for fuelling a nuclear reactor has mounted thereon a gas-tight hoist unit 13 whereby a television camera can be raised or lowered in a stand-pipe in the pile cap of the reactor on the end of a flexible hose 15. The hose 15 has inside it a coaxial pair of ducts which carry liquid carbon dioxide to and from the camera for cooling it and also a cable comprising a bundle of electric leads for operating it. The hose 15 passes up through a hole in the casing 20 of the unit 13, which is connected in a gas-tight manner to the stand-pipe (Fig. 1, not shown), and is wound in a helical groove 27 formed on a drum 24. A fixed guide 60 causes the drum 24 to traverse axially on rollers 24 along a drum 23 when the latter is rotated by a motor (not shown) so that the hose 15 is always reeled off the drum 24 immediately above the stand-pipe. The drum 23 is mounted on one hollow driving axle 22 and on one fixed axle 21. A cable 29 carries the electric leads and flexible pipes 30 and 31 carry the carbon dioxide to and from the axles to the pipe 15 to which they are affixed by a connector 28 (see Division F2).
Patent GB-270795-A (GB)
Title: Improvements in universal joints for flexible shafting
IPC: F16D3/221
Filed: 1926-02-11
Abstract: 270,795. Williams, E. Feb. 11, 1926. Universal joints; flexible shafts. - In flexible shafting, comprising links or sections connected by ball-and-socket joints with driving abutments such as balls or pins, each section 3 has at opposite ends a ball 1 and an internally and externally spherical socket 2, the open end of which may be pressed over the ball, slits 6 being preferably formed therein to facilitate the operation. Alternatively, the element 1 - - 3 may be longidinally divided and connected by rivets 7 or screws or pins 8, 16, the pins 16 passing through slots 15 in the balls 1 to act as driving abutments. One or more pins may, however, be carried by the ball to coact with a groove or grooves in the socket, or one or more balls 9, carried in recesses 10 or 12 in the socket 2 or ball 1 may coact with a groove or grooves 11 or 13 in the ball or socket respectively. The grooves may be so inclined to the shaft axis that the driving-torque draws the parts together. Pins and balls may be used conjointly as driving abutments. The outer surfaces of the sockets 2 act somewhat as ball bearings in the usual flexible guide-tube (not shown). The Provisional Specification describes the balls 9 as passing through the wall of the socket to act as ball bearings on the guide-tube.
Patent GB-501177-A (GB)
Title: Cold-sealing substitutes for sealing wax
IPC: C09K3/10
Filed: 1938-02-08
Abstract: 501,177. Sealing wax substitutes; cellulose derivative compositions. SCHULEIN, C. Feb. 8, 1938, No. 3949. Convention date, Dec. 2, 1937. [Class 2 (ii)] A composition which forms a cold-sealing substitute for sealing wax is made from cellulose ethers or esters, dextrin or casein, formaldehyde, and a volatile solvent or swelling agent for the cellulose derivative. Suitable solvents or swelling agents are methylene chloride and the substance known as Drawin. Artificial resins such as phenol-aldehyde or alkyd resins, plasticizers such. as glycerine, castor oil, or ethyl phthalate, and fillers such as chalk, micro-asbestos, or paper fibre, may also be added. If desired, colouring substances such as mineral colours or metal powder may be added to the composition.
Patent GB-524819-A (GB)
Title: Metal coated plastic material and method of producing the same
IPC: C23C18/28
Filed: 1939-02-07
Abstract: 524,819. Silvering. METAPLAST CORPORATION. Feb. 7, 1939, No. 4022. Convention date, May 23, 1938. [Class 82 (ii)] A method of ornamenting the surface of a plastic material comprises depolishing the surface, treating it with stannous chloride solution, washing, and subjecting the washed surface to the action of a silver solution under conditions to precipitate silver thereon. The resulting coating may be polished or otherwise finished or may be electroplated. A stencil may be used so that desired parts only of the surface are affected.
Patent GB-524777-A (GB)
Title: Process and apparatus for making tubing and product so produced
IPC: B29C48/10
Filed: 1939-02-07
Abstract: 524,777. Moulding sausage skins &c. SYLVANIA INDUSTRIAL CORPORATION. Feb. 7, 1939, No. 4026. Convention date, Feb. 19, 1938. [Class 87 (ii)] [Also in Group IV] Tubing for use as sausage skins, or for packing other foodstuffs or other articles, is made from non-fibrous coagulable plastic material by a continuous process comprising the steps of shaping the material into the form of a tube, completely coagulating the material, subjecting the tube to stretching by application of internal pressure and subjecting it to a fixing operation while in the stretched state. The tube may be formed by coating a mandrel with a solution or dispersion of the plastic material or by extrusion through an orifice. Longitudinal as well as transverse stretching may be effected. The plastic may be a cellulose ester or ether, e.g., one which is soluble in organic solvents, or alkalies, or water. It may be cellulose acetate, nitrate, or butyrate, or methyl cellulose, benzyl cellulose, a cellulose etber xanthate, cellulose thiourethane, or cellulose xanthofatty acid. It may be a urea-formaldehyde, vinyl, or glycerolphthalic anhydride resin, or rubber, chlorinated rubber, gelatine or casein. Cellulose derivatives may be fixed after stretching by converting them to cellulose hydrate. Soft resins may be fixed by converting them into a hard non-fusible form by heating, radiation, or other means. The major part of the solvents are removed before the stretching. They may be replaced by swelling agents. Stretching may be facilitated by heating the tube. As shown in Fig. 2, tubing which has been produced by extrusion and wet coagulation, and which has passed through a chamber 7 in opposite direction to a current of heated air is passed between pressure rolls 9, flattening rolls 10, rollers 11, and drawing rolls 12. Longitudinal stretching is effected by rolls 12, and transverse stretching by means of liquid 13 within the tubing. The transverse stretch is adjusted by travelling belts 14, and plates 16. The tube 2 may be surrounded by a casing containing steam or vapour, at the place where it contains liquid 13. Gas may be used instead of liquid for effecting the transverse stretch. The expanded tube may be fixed by chilling it, by passing through a cold liquid, if it has been softened by heat. As shown in Fig. 5, the tube 2 passes through chamber 37 where it is rendered more plastic, and then over mandrel 39. The stretched tube is set by means of a liquid which chills or hardens it. As shown in Fig. 6, the tube 2 passes through a softening liquid in bath 49 and between squeeze rolls 50. It is then extended to normal diameter by means of a column 51 of heavy liquid, e.g. mercury. It then passes through vacuum chamber 52 wherein the cylindrical parts 55, 56 are connected by a porous fabric or earthenware tube 57. Pressure of gas within the plastic tube causes it to be pressed against fabric 57 and stretched.
Patent GB-580051-A (GB)
Title: Improvements in or relating to the reclaiming of vulcanised synthetic rubber-like material
IPC: C08J11/14
Filed: 1944-03-04
Abstract: Vulcanized synthetic rubber-like material of the type produced by the co-polymerization of butadiene with other polymerizable substances such as styrene is reclaimed by heating the comminuted material to a temperature of at least 160 DEG C. while continually exposing fresh surfaces of the material in the presence of oxygen. In a preferred embodiment, a vulcanized tyre tread composition containing GR-S synthetic rubber to which may be added a proportion of vulcanized natural rubber is ground to pass a 10 mesh per inch sieve.  The crumb is then rapidly heated to 160-200 DEG C. in a rotating horizontal cylindrical drum having centrally situated apertures in each end through which air and oxygen are fed; after 10-15 minutes the reclaimed material is rapidly cooled and sheeted on water cooled rolls.  Softeners such as the coumarone resins particularly the softer types, petroleum residues and pine-tar may be added during the process.
Patent GB-1244928-A (GB)
Title: Tank connecting fittings in aircraft and missiles with variable sweep wings
Inventor: SCHUNDA DIETER HERBERT
IPC: B64D37/22
Filed: 1970-01-28
Abstract: 1,244,928. Pipe couplings. MESSERSCHMITT - BOLKOW - BLOHM G.m.b.H. 28 Jan., 1970 [3 Feb., 1969], No. 4123/70. Addition to 1,244,927. Heading F2G. In an aircraft or missile having variable sweep wings with a fitting comprising a telescopic tube in combination with joints permitting swivelling and universal movement connecting tanks in the aircraft, &c. body to tanks in the wings as in the parent Specification, an additional external coaxial tube 4 is fixed to one sleeve 2 of the telescopic tube, and contacts, by way of a seal 5, another sleeve 1 of the telescopic tube thus forming a chamber 6 in which any fuel escaping seal 3 is collected. As shown a manually opened drain hole 7, with which may be associated a gauge glass, is fitted to the tube 4.
Patent GB-1168551-A (GB)
Title: Polymerization Process
IPC: C08F20/56
Filed: 1967-01-27
Abstract: 1,168,551. Non-stable emulsion polymerization process. NALCO CHEMICAL CO. 27 Jan., 1967 [21 March, 1966], No. 4153/67. Heading C3P. [Also in Division C1] Polymers of water-soluble monomers having high molecular weights (at least 5 million) are prepared by forming a polymerizable system containing (a) a suspended phase comprising an aqueous solution of at least one ethylenically unsaturated water-soluble monomer; (b) a suspending phase comprising a water-insoluble organic liquid heat-transfer medium; and (c) an emulsification agent present in an amount sufficient to maintain an apparent emulsion under agitation but insufficient to permit formation of a stable emulsion; agitating said system to form an apparent emulsion; adding a polymerization catalyst to said apparent emulsion to initiate polymerization; and polymerizing said system with agitation for sufficient time to form a polymer having a molecular weight of at least 5 million as determined by light scattering technique, said polymer being in the form of a powder having an average particle diameter of from 1 to 10 microns. Water-soluble monomers specified are acrylamide, methacrylamide, acrylic and methacrylic acid and salts thereof, carboxyethyl acrylate and salts thereof, acrylonitrile, methacrylonitrile, maleic, fumaric, itaconic, aconitic and citraconic acids and the amides and alkali metal, alkaline earth metal or ammonium salts thereof. The organic liquid suspending phase is preferably one which forms an azeotropic mixture with water, e.g. aliphatic or aromatic hydrocarbons or chlorinated aliphatic hydrocarbons. As emulsifier, nonionic compounds are preferred, e.g. ethylene oxide condensates of fatty acid amides and sorbitan monopalmitates and monostearates. Conventional azo, peroxy and redox catalysts may be used to initiate polymerization. The polymer products are useful in removing, by coagulation, solids suspended in a liquid medium. Examples illustrate the preparation and use of polyacrylamide.
Patent GB-209318-A (GB)
Title: Improvements in sliding clasp fasteners
IPC: A44B19/38
Filed: 1923-02-12
Abstract: 209,318. Laidlaw, A. B. S. Feb. 12, 1923. Sliding - clasp fastenings.-In a fastener of the type in which two rows of headed and recessed members j are drawn together to engage by a slide, a stem a, with enlarged head b, on one part to be fastened enters a recess f in a socket portion d on the other part, and is held in the socket by being turned into a narrow portion g of the recess by the closing movement of the slide h.
Patent GB-281902-A (GB)
Title: Improvements in, or relating to, tool holders and other receptacles for use on motor vehicles
IPC: B62J9/00
Filed: 1927-02-15
Abstract: 281,902. Sankey & Sons, Ltd., J., Sankey, G. H., and Sankey, H. B. Feb. 15, 1927. Addition to 223,409. Luggage and like holders.-In a modification of the invention described m the parent Specification a tool or like receptacle is detachably secured to and between the forward or rear extensions of the chassis frame by means of hooks E, F mounted on the front and rear faces of the receptacle A and adapted to engage over projections G extending inwardly from the chassis members D, means being provided for locking the hooks in engagement with the projections. In the construction shown the locking is effected by providing at each side of the receptacle a pair of sliding bolts J, K pivoted to a. rotatable disc M which, in turn, is actuated by a sliding rod 0 adapted to be depressed when the lid B is closed. The bolts J, K pass through apertures in the receptacle so as to engage under the projections G, and are released by return springs P when the lid is opened. Partitions may be arranged in the receptacle to prevent the articles carried therein from interfering with the movements of the bolts.
Patent GB-642193-A (GB)
Title: Improvements in or relating to filter-elements
IPC: B01D29/075
Filed: 1948-02-13
Abstract: 642,193. Filters. BENDIX AVIATION CORPORATION. Feb. 13, 1948, No. 4327. Convention date, March 19, 1943. [Class 46] An edge-filtration filter element comprises a stack of washer-shaped rough irripregnated paper discs 23, Fig. 5, or a paper ribbon wound spirally, closed at the bottom by a member 24 supporting an intervening gasket 27 and held together by a U-shaped spring 29, riveted to the member 24, the limbs 30 of which may be pressed together for insertion in the stack, and have apertures 31 for engagement with projections 32 in a disc 33 between washers 34 and 35 at the top of the stack. The edges of the limbs 30 in the assembled element are in contact with the insides of the discs 23, thus keeping them in alignment. The impregnating agent preferably also adheres the layers of paper together. The assembled element may be arranged between a facing 15 of a filter head 11, Fig. 3, and a spring 43 at,the bottom of a cup-shaped casing 36 screwed to the head. The edges of the upper ends of the limbs 30 engage the sides of a small cylindrical chamber 14, forming a continuation of the passage through the stack 23. An inlet 18. and an outlet 22, may be provided. The filter maybe used for the anti-icing fluid of an aircraft.
Patent GB-625177-A (GB)
Title: Improvements in fastening devices
IPC: A45C13/06
Filed: 1947-02-14
Abstract: 625,177. Bag fastenings. GLEIM, H. A. Feb. 14, 1947, No. 4339. [Class 44] A fastening device for a portable container such as a hand bag, Fig. 4, comprises a pair of rigid elements 12,13 in the form of elongated rings arranged side by side and hinged together at the ends by links 16, other links 15 connected to the carrying strap 17 being adapted to slide along adjacent limbs to draw the elements together and maintain the bag closed when carried by the strap 17. Stop links 14 are provided at the right angle bends in the elements. In a modification each element comprises a rod in the form of a bow, semi-circle or the like the free ends of the rod being turned inwardly and upwardly at the hinge so that all parts of the rod lie in the same plane. In application of this modification, Fig. 10, the elements 19 are retained by clips 27 in parallel spaced disposition on the two parts of a suit-case, the sliders 23 being extended to connect them.
Patent GB-296949-A (GB)
Title: Automatic feeding device for use on sawing and filing machines
IPC: B23D67/00
Filed: 1928-02-11
Abstract: 296,949. Thiel, H. Fe b. 11, 1928. Filing-machines, reciprocating. - In a filing- machine the work 1 is clamped in a U-shaped holder 2 drawn towards the tool 13 by a band 11 which passes round a plate 12 provided with a pivot 9 which may be inserted into any one of a series of holes in the holder 2. One or both arms of the U may be adjustable.