baber/WOPTO huggingface dataset:
Patent GB-596921-A (GB)
Title: Improvements relating to rotary abrading, polishing and like tools
IPC: B24D9/04
Filed: 1945-04-27
Abstract: 596,921. Rotary abrading, polishing, and brushing tools. PHILLIPS RUBBER SOLES, Ltd., and EYLES, G. F. April 27, 1946, No. 10656. [Classes 19 and 60] In a rotary abrading, polishing or like tool, more particularly the tool of boot-finishing machines, of the kind comprising a disc or cylinder formed in halves hinged together at one side and adapted to have abrading, polishing or brushing material wrapped around their periphery and secured by the ends of the material being gripped between the halves of the disc when locked together, the hinged halves of a disc or cylinder are secured in their closed position by an elastic coupling which does not project beyond the faces of the disc or cylinder, which permits the halves to be secured at different distances apart as may be required by varying thicknesses of material clamped between them without play or looseness, and comprising a tension batch member on one half disc which can engage or which is in permanent engagement with a pin or catch member on the other half disc, one or both of the said members being resiliently mounted. The hinged halves 1, 2, Fig. 3, are latched together by a hook 5 pivoted at 6 on the half 2 and having a cam face 9 engaging a spring- pressed pin 7 in the half 1, the hook when in the engaged position lying flush with the face of the disc. The hook and the slots in the disc halves which receive it may be curved ; in the case of cylindrical tools, a curved latch hook is provided at each end and instead of spring- pressed pins a blade spring is secured lengthwise in the body of the cylinder with its shaped ends engaged by the hooks. In a modification, Fig. 5, the halves are clamped together by a toggle comprising a link 19 pivoted at 20 to one half and connected at 22 to a crank member 21 pivotally mounted at 23 on the other half ; one or both of the pivots 20, 23 is resiliently mounted by means of a spring-pressed or rubber bush.
Patent GB-1034304-A (GB)
Title: Improvements in and relating to annular seals for mechanical joints
Inventor: THOMPSON EZRA COLLINS
IPC: B21B35/14
Filed: 1964-03-13
Abstract: 1,034,304. Seals. G. ANGUS & CO. Ltd. March 31, 1965 [March 13, 1964], No. 10671/64. Headings F2B and F2U. Sealing means between two parts of a mechanical joint comprises a resilient sealing ring 20 that engages a conical surface on one of the parts and is housed in a peripheral channel 19 in a ring 18 mounted on the other part, the base of the channel 19 having a similar conicity to that of said conical surface. As shown applied to a gear coupling, the ring 18, which is preferably diametrally split, is mounted with radial freedom in a channel 17 in the spigot 16 of a pinion 12 engaging the internal teeth 11 of a sleeve 10 having a lead-in cone 15 against which the 0-ring 20 is urged by a spring 28. The ring 18 is sealed in the channel 17 by an 0-ring 22.
Patent GB-523191-A (GB)
Title: Improvements in manufacture of cellulose ethers
IPC: C08B11/02
Filed: 1939-04-05
Abstract: 523,191. Cellulose ethers. HERCULES POWDER CO. April 5, 1939, No. 10673. Convention date, Aug. 25, 1938. [Class 2 (ii)] Lengths chipped from a sheet of lightly felted cellulosic material according to the method of Specification 463,437, are subjected to treatment with an aqueous alkaline solution and an alkylating agent and converted into a cellulose ether. The chipped cellulosic material may be mixed with the alkali solution without any prior mastication treatment. The chipped material may be mixed with the alkali solution and alkyl halide at the same time. The sheet from which the chips are obtained may be formed from cotton-linters or wood-pulp. It may be of high alpha-cellulose content. The chips may have a thickness of 0.01 inches, a width of 0.015 inches, and a length up to about 2 inches. Methyl chloride, dimethyl sulphate, ethyl bromide, propyl chloride, or butyl chloride, or other alkylating agent may be used. Diluents or solvents such as alcohol, benzene, toluene, or dioxane may be present. The reaction may be carried out in an autoclave and at raised temperature.
Patent GB-392970-A (GB)
Title: Improvements in or relating to locks
IPC: B60R25/021
Filed: 1931-12-01
Abstract: 392,970. Preventing unauthorized use of motor vehicles ; spare-wheel holders. STOCKDALE, Y., 3, Hartington Street, Lancaster. Dec. 1, 1931, No. 10690. [Classes 79 (iii) and 136 (i).] A revolving- barrel lock in which the locking bolt 30 has screwthreaded engagement with a fixed member 15 and is advanced by rotation of a movable member 16 may be used to lock the steering column of a motor car, the gear-change lever or a holder for a spare wheel. In the first case, the bolt 30 enters holes 51, 49 in the outer pillar 47 and the inner rod 48. The lock is secured to the pillar 47 by means of a clamp consisting of two parts 44, 45 fastened together by bolts 46, the nuts of which are cut off flush with the surface of the clamp. The lock may be similarly applied to the horizontal shaft of a side changegear lever. A holder for a spare wheel consists of two flanged cylindrical members 84, 85, Fig. 12, connected by a bayonet joint 86. A lock 92 is mounted eccentrically in the member 85 and the bolt 50 enters a hole in the other member 84 to prevent rotation for releasing the bayonet joint.
Patent GB-290275-A (GB)
Title: Improvements in and relating to valves for liquids
IPC: F16K11/056
Filed: 1928-04-11
Abstract: 290,275. Rennerfelt, S. B. May 12, 1927, [Convention date]. Piston valves.- A piston valve 3 having a number of longitudinal grooves and cylindrical seating surfaces 11 controlling a number of ports in a cylindrical portion of the valve casing 2 has a plate or poppet valve 12 secured thereto and adapted to co-operate with a corresponding surface 14 in the casing, with an interposed packing washer 15, so as to control communication between the cylindrical portion of the casing and a single port provided in an enlarged extension thereof. Rotation of the valve is prevented by a pin engaging a groove 5. Movement of the valve is effected by rotation of a shaft 6, the inner end of which is threaded to engage a screw-threaded axial passage in the valve. A rod 9 projecting from the valve indicates the position of the valve.
Patent GB-108068-A (GB)
IPC: B60C27/16
Abstract: 108,068. Favretti, U. Sept. 26, 1916. Tread bands, projections, and surfaces.-A device for fitting over the tread of an ordinary pneumatic tyre comprises a split ring 7, Fig. 1, or a series of shaped segments, and a continuous tread ring 1 which may be formed by a pair of separable rings, and may be fitted with a wearing surface of rubber, &c., or with ordinary tread studs. The parts 7, 1 may be interlocked by tongues and grooves, by studs on the rings &c. engaging recesses in the ring 1, or, as shown in Fig. 11, radially-movable conical (or headed) studs 16 may be fitted in registering holes in the parts. To facilitate manipulation, the ends of the ring 7 are formed with holes to receive the jaws 8 of straining devices having bolts 9 adapted to bear against the inner periphery of the wheel rim. In the modification shown in Fig. 15, spaced segments 7" are connected by a split ring 17 and a continuous tread ring 1; or the ring 17 may be omitted. In the further modification shown in Fig. 17, the segments 7<11> are threaded on a ring 17, the ends of which are then joined up.
Patent GB-197924-A (GB)
Title: Improvements in or relating to electrical installations comprising condensers
IPC: H01G9/14
Filed: 1923-04-21
Abstract: 197,924. Soulier, D. A. May 17, 1922, [Convention date]. Systems of charging and discharging condensers. -An electric supply system comprising electrolytic condensers is provided with means for submitting the condensers to an increased voltage. An additional source of voltage b, Fig. 1, is adapted to be connected in series with the normal generator A by means of a switch c. In the arrangement shown in Fig. 2 the increased voltage is obtained by a transformer b<1>, b<2>, the secondary winding of which is controlled by a switch c. In a modification, an auto-transformer is employed. In a further modification, a variable inductance is adapted to be connected in series with the condensers. In the arrangement shown in Fig. 6, two condensers are normally connected in series across the line and a switch c is adapted to short-circuit either of the condensers. A resistance f is inserted during the switching operations. The arrangement may be employed on polyphase systems.
Patent GB-572914-A (GB)
Title: Improvements in or relating to the production of synthetic resins
IPC: C08F18/04
Filed: 1943-10-04
Abstract: Vinyl trimethyl acetate is copolymerized with an organic compound containing the group <FORM:0572914/IV/1> , where x is hydrogen or halogen.  Compounds specified are vinyl esters of organic and inorganic acids, e.g. vinyl acetate, vinyl propionate and vinyl halides, vinyl esters, vinyl ketones, vinyl cyanide, vinyl aryls, acrylic and methacrylic acids and their esters amides and nitriles, trichlorethylene, vinylidene chloride and chloroprene.  The known catalysts for vinyl polymerization may be used and polymerization may be effected in mass, in solution in methanol or acetone or in aqueous dispersions to produce emulsions of granular copolymers.  Some of the copolymers are soluble in benzene, trichlorethylene and isobutyraldehyde.  They may be mixed with plasticizers, fillers, dyes and pigments.  The copolymers of vinyl trimethylacetate and vinyl esters, e.g. vinyl acetate, may be hydrolysed by known methods. Specification 572,910 is referred to.
Patent GB-803296-A (GB)
Title: Improvements in and relating to separable fasteners of the stud and socket type
IPC: F16B21/07
Filed: 1956-04-10
Abstract: 803,296. Stud and socket fastenings. UNITED-CARR FASTENER CORPORATION. April 10, 1956 [April 12, 1955], No. 10935/56. Class 44 A separable fastener comprises a male and a female element 14 and 12 each being a unitary moulded body of firm but yielding tenacious and resiliently extensible polymeric material, the male element 14 comprising a post 20 having an enlarged head 16 with a rounded end and overhanging shoulder 18 and, at the base of the post, an integral peripheral flange 24 provided for anchorage of the element to a supporting part 26, the female element 12 being formed in one piece and comprising a circumferentially continuous tube 28 having an exterior peripherally extending flange 38 provided for anchorage to a flexible sheet 40 and having at one end an inwardly extending overhanging flange 30 defining rearwardly an abrupt shoulder 34, the opening within the flange corresponding substantially to the cross-sectional area of the post 20 beneath the head 16, whereby on axial approximation of the parts and their resultant elastic deformation, the head 16 may pass the flange 30 and the abrupt shoulder 34 of the flange underlie the overhanging shoulder 18 of the head effectively to resist axial withdrawal of the head, the thickness of the inwardly extending overhanging flange 30 being substantially less than the length of the portion of the post between the enlarged head and the integral peripheral flange 24 of the stud so that the inner face of the overhanging flange 30 is spaced from the underface of the stud, such that in separating the elements of the fastener, the female element may be tilted about the longitudinal axis of the post and then elastically distorted in shape under radially applied strain to withdraw a portion of the flange radially beyond the head and so permit separation. As shown, the sheet material 40 extends over the open end of the female element 12.
Patent GB-128031-A (GB)
Title: Improvements in or relating to Expansible Bracelets or the like.
Inventor: ROTHERHAM HUGH
IPC: A44C5/08
Filed: 1918-07-03
Abstract: 128,031. Rotherham, H. July 3, 1918. Bracelets.-Barrel or torpedo shaped links A containing springs B alternate with flexible connectors such as chains D. The chains are connected with the links and springs by rounded members such as the hemispherical cup E and ball C. The construction allows the bracelet to roll over the hand. A watch or other ornament can replace one of the balls D<1>.
Patent GB-953950-A (GB)
Title: Heat-curable mixtures of epoxy derivatives and polycarboxylic acid anhydrides
IPC: C09D5/25
Filed: 1962-03-22
Abstract: Product A  3:4-epoxy-tetrahydrodicyclopentadienol-8(or9) -glycidyl ether is prepared by condensing epichlorhydrin in presence of boron trifluoride etherate or tin tetrachloride with 8 (or 9) hydroxy-8, 9-dihydro-dicyclopentadiene, epoxidising the thus formed chlorohydrin with peracetic acid and dehydrochlorinating the epoxidised chlorohydrin with caustic soda.  Product B.  3 : 4-epoxy-tetrahydro-dicyclopentadienol-8 (or 9) is prepared by epoxidising 8 (or 9)-hydroxy-8, 9-dihydro-dicyclopentadiene with peracetic acid in presence of benzene and anhydrous sodium acetate. Product C.  A mixture of 3 : 4-epoxy-tetrahydro-dicyclopentadienol-8 (or 9)-glycidyl ether and 3 : 4-epoxy-tetrahydro-dicyclopentadienol-8 (or 9) is prepared by peroxidising with peracetic acid a mixture of the corresponding dihydro dicyclopentadienol-glycidyl ether and dihydro-dicyclopentadienol.  Product D.  3 : 4-epoxy-8 (or 9)-(b -hydroxyethoxy)-tetrahydro-di-cyclopentadiene is prepared by peroxidation with peracetic acid of 8-(or 9)-(b -hydroxyethoxy)-8, 9, dihydro dicyclopentadiene.  Specification 950,285 is referred to.ALSO:Mixtures containing (1) a diepoxide of formula: <FORM:0953950/C3/1> ,(2) a monoepoxide of formula: <FORM:0953950/C3/2> in which A is alkylene which may contain O in the chain and n=1 or 2, and (3) a polycarboxylic anhydride may be cured by heat.  Suitable anhydrides are maleic, succinic, allylsuccinic, dodecylsuccinic, adipic, phthalic, tetrahyadrophthalic, hexahydrophthalic, hexachloro-endomethylene-tetrahydrophthalic, endomethylene tetrahydrophthalic, methyl-endomethylene-tetrahydrophthalic, pyromellitic.  Accelerators, e.g. 2, 4, 6-tris (dimethylaminomethyl)-phenol, alkali metal alcoholates, 3-hydroxymethyl-pentanediol-2, 4, or glycerol may be added. The mixtures may also contain a proportion of compounds (1) and (2) whose epoxide groups have been wholly or partially hydrolysed to hydroxyl groups.  Conventional additives may also be included, e.g. asphalt, bitumen, glass filres, mica, quarty meal, cellulose, kaolin, finely dispersed silicic acid or metal powders. In Examples (1), (2), (3), (4), (7).  A mixture of 3:4-epoxy-tetrahydro-dicyclopentadienol-8 (or 9)-glycidyl ether, and 3:4-epoxy-tetrahydro-dicyclopentadienol-8 (or 9) and phthalic anhydride was cast and cured for 24 hours at 140 DEG C. In Example (5) a mixture of 3 parts of tetrahydrophthalic anhydride with 1 part of phthalic anhydride is used as curing agent. In Example (6) methyl-endomethylene-tetrahydrophthalic anhydride. is the curing agent.  In Example (8) the monoepoxide used is 8 (or 9)-(b -hydroxyethoxy)-3, 4-epoxy-tetrahydro-dicyclopentadiene.  Uses.  The products are particularly useful in electrical insulation.  Also as textile assitants, laminating resins, paints, lacquers, coating resins, coating compositions, pore fillers, adhesives or for moulding.  Specification 950,285 is referred to.
Patent GB-960112-A (GB)
Title: Method for the extraction of a subterranean mineral deposit using a fluid for removing the deposit
Inventor: REDLINGER JACOB FRANCIS
IPC: E21B43/285
Filed: 1961-03-25
Abstract: 960,112. Solution mining of minerals. F M C CORPORATION. March 25, 1961, No. 10985/61. Heading E1F. To allow of satisfactory fracturing of an interface D between a subterranean mineral stratum C and the next lower stratum E to allow of a fluid to pass through the fracture between boreholes A, B extending down to the interface D to remove mineral from the underside of the stratum C at least one of the boreholes A, B is extended beyond the stratum C into the stratum E and then enlarged in the region of the interface D to form a shoulder B<SP>1</SP> of exposed mineral adjacent the interface. Such an enlargement of the or each borehole ensures of satisfactory directional fracturing of the interface between adjacent boreholes on the supplying under pressure to the or each borehole of a suitable fracturing liquid. The enlargement of a borehole may be done by reamering tools or by the firing of hollow explosive charges in predetermined directions.
Patent GB-926440-A (GB)
Title: Improvements relating to the production of plastic sheeting
Inventor: HONEY ERIC MAURICE O'CONOR
IPC: H01M50/414
Filed: 1961-03-27
Abstract: 926,440. Moulding ribbed plastic sheeting. PRITCHETT & GOLD & E.P.S. CO. Ltd. March 15, 1962 [March 27, 1961], No. 11029/61. Class 87(2). In apparatus for moulding ribbed plastic sheeting from thermoplastic powders, prior to sintering, and comprising a hopper 4 for delivering a continuous layer of powder 5 on a travelling belt 1 and a die 7, located above the belt and provided with slots 8 for forming ribs on the powder layer 5a, a plurality of separate unattached balls 12 is distributed in a spaced row across the belt in the path of the powder layer travelling to the slots in the die. Each ball is positioned by two series of pins 13 and 14 which respectively maintain a desired spacing between the balls and the die face and loosely locate the balls on lines passing midway between pairs of adjacent slots 8. Sufficient clearance is allowed between each ball and the pins 14 to enable the balls to rotate freely solely by contact with the belt and/or the powder thereon. The balls 12 serve to channel the powder towards the slots,
Patent GB-342957-A (GB)
Title: Sash cord fastener for the frames of sliding window sashes
IPC: E05F11/40
Filed: 1930-04-08
Abstract: 342,957. Sash-cord attachments for windows. EDWARDS, C., 33, Cedars Road, Clapham Common, London. April 8,1930, No. 11130. [Class 20 (iii).] Sash cords are secured to sashes by passing the cord through a tube A which is screwed into a recess in the sash by means of top and bottom extensions E, the latter extension being bent inwardly and again downwardly at its middle, as shown.
Patent GB-710417-A (GB)
Title: Improvements in or relating to means for detecting heat radiation
Inventor: HOLT HERBERT BRUCE WILLIAM
IPC: H01H37/32
Filed: 1951-05-11
Abstract: 710,417. Temperature-responsive actuating-elements. P.A.M., Ltd. May 2, 1952 [May 11, 1951], No. 11147/51. Class 64(2) [Also in Groups XXX and XXXVII] The actuating - element of an electric switch responsive to radiant heat (see Group XXXVII) is an extensible strip 6 of metal such as phosphor-bronze or brass reinforced at its ends by U-shaped clips 7. The lower end of the strip is adjustably secured by a non-rotatable stud 9 to a bridge member 2 carried by rods 1 having a low coefficient of expansion. The upper end of the strip is secured to. a switch-actuating plunger 14 which is upwardly biased by a spring 17 to maintain the strip taut. The strip 6 is protected by a casing 44 having a window of fine gauze 48, the front of the strip being blackened. In one arrangement, the casing is of grey fibre and the back of the strip is polished so that the strip responds only to direct radiation on to its front. Alternatively, both sides of the strip may be blackened and the casing 44 shaped and polished so as to act as a reflector,
Patent GB-1267861-A (GB)
Title: Method and apparatus for recording and reproduction of a visual image
IPC: G03C5/02
Filed: 1969-03-03
Abstract: 1,267,861. Diffraction grating systems. AGFA-GEVAERT A. G. March 3, 1969 [March 2, 1968], No.11236/69. Heading G2J. Images modulated in the form of a diffraction grating are photographically recorded on a carrier 11 and reproduced by illuminating the carrier 11 to give at least one non-zero order diffraction spectrum produced by the or each modulated diffraction grating. In one embodiment a photographic layer is exposed to an image of a grating with a degree of exposure sufficient to produce maximum density of image. The layer is then developed and bleached and re-exposed to the image to be recorded. Alternatively the layer can be exposed to an image of a grating at below the response threshold of the layer; the layer being exposed to the image before development. The grating may be produced by two interfacing light beams. Multiple images may be recorded by moving the grating between exposures, or by interposing a double-refracting crystal or bi-prism between the grating and the layer. In reconstruction a spatial filter 10, preferably located in the transform plane of a projection lens 9, blocks out zero order diffraction spectra. The required orders are projected on to an image plane 13. Where multiple images are recorded on carrier 11, each image modulated grating thereon has a unique azimuth angle and/or grating constant. If desired the record may be of a coloured image and comprise three layers, one for each primary colour. Thus the record will contain three gratings each modulated by a different colour separation image. In reproduction either the light beams produced by diffraction by the different gratings are passed through corresponding colour filters, or the components of the light beams that are not required are interrupted by a suitable spatial filter.
Patent GB-527547-A (GB)
Title: Improvements in cathode-ray tubes and methods of operating them
IPC: H01J31/12
Filed: 1939-04-14
Abstract: 527,547. Cathode-ray tubes. GENERAL ELECTRIC CO., Ltd., and JESTY, L. C. April 14, 1939, No. 11372. [Class 39 (i)] The cathode-ray tube 1 and its fluorescent screen 4 are rotated about the axis of the tube, and the ray 6, produced by means substantially symmetrical about the axis, is deflected by a stationary magnetic or electrostatic field, so that the spot 7 is fixed in space but describes a circle on the screen. The deflecting means is preferably provided by stationary pole pieces 5 outside the tube, but may consist of a magnetic or electrostatic system pivotally mounted inside the tube and constrained, for example by gravity, so as to remain fixed in space. Alternatively, two pairs of mutually perpendicular deflecting plates may be supplied with sinusoidal voltages of the same frequency displaced 90 degrees apart, whereby the ray is given a rotary movement equal and opposite to the movement of the tube. In the application to oscillographs or television, the scanning movements are given to the beam by imposing on the constant deflecting field, variable fields producing the necessary radial and circumferential movements. The radial deflections may be produced by modulating the field of the pole-pieces 5, or by an annular system 9 of electrostatic plates mounted in the tube. The circumferential movements are preferably produced by magnetic pole pieces 10 outside the tube. The picture area lies in the annulus 11, and optical projection is used.
Patent GB-1343458-A (GB)
Title: Mould cover
IPC: A22C7/00
Filed: 1971-04-26
Abstract: 1343458 Pressing meat CHEMETRON CORP 26 April 1971 [24 April 1970] 11415/71 Heading A2U A cover 26 for applying spring pressure to a meat loaf &c in an elongated mould 12 during cooking, chilling, or other operations, is rigidly secured, e.g. by welding, to a bar 62 which is of rectangular cross-section and slidable in openings in a frame 28 and spring abutment washer 48 secured, e.g. by welding, to the frame so that the cover 26 is guided with respect to the sides of the mould. Ratchet teeth 42 on members 36 hinged to the frame 28 coact with a flange 24 on the mould, and a pin 66 prevents accidental disengagement of the bar 62 from the frame 28. A pair of plates 26 may be suspended from a single frame 28 for use with a double-cavity mould.