baber/WOPTO huggingface dataset:
Patent GB-260299-A (GB)
Title: Improvements in apparatus for vulcanising the treads of india-rubber pneumatic tyres
IPC: B29D30/54
Filed: 1926-01-29
Abstract: 260,299. Soc. des ProcÚdÚs Fit. Oct. 27, 1925, [Convention date]. Moulding wheel tyres.-In apparatus for vulcanizing and retreading tyres comprising a hinged mould into which the tyre is forced by an expansible ring of overlapping elastic plates on shoes mounted on radial arms pivoted to hubs on a screw having right and left-handed threads as described in Specification 257,883, modifications are made in the expansible ring, the elastic mounting of the apparatus in the centre of the mould and in the pivoting of the radial arms to the hubs. Carried by the hinge 3, Figs. 1 and 2, of the mould 4 on arms 7 is a case 8 through which passes a right and left-handed screw 10, 10<a>, on which are mounted hubs 12, 12<a> to which are pivoted arms 13, 13<a> having shoes 15 mounted on their outer ends. To each shoe is attached an elastic plate 16 the end 16<c>, Fig. 6, of which is reduced in width and bevelled and slides under the end of the plate of the adjacent shoe. Balls &c. may be mounted between sliding surfaces. Intermediate arms 21 with spring strips 22 bear on the plates 16 between the shoes. In a modification, the bevelled plates 16 rest on the adjacent plates, being kept in alignment by means such as slots on one plate engaged by pins on the other. In this case, the plate may be attached to its shoe by a transverse pivot, and a bolt passing through the shoe and embracing a spiral spring bearing on the shoe and the nut of the bolt. The screw 10, 10<a> may be mounted in the casing 8 with interposed springs or blocks of rubber to allow of slight movement due to inequalities of pressure. Instead of the arms 13, 21 being attached to the hub 12 as shown in Fig. 2 the hub may be formed with slots and an annular groove. The arms are threaded on a ring which fits into the groove with the arms extending through the slots; a cover plate is then applied. In operation, a cushion preferably made of cork and asbestos is interposed between the rim and the tyre.
Patent GB-619758-A (GB)
Title: Stabilisation of halogenated ethylenes containing fluorine
IPC: C07C17/42
Filed: 1944-02-14
Abstract: Halogenated ethylenes containing at least one fluorine atom are stabilized by incorporating therewith from 0.001 per cent and 5 per cent by weight of a compound containing an amino-nitrogen group.  In the examples, tetrafluorothylene is stablized in the liquid phase by the addition of ammonia, p-phenetidine, di-n-butylanime and tri-n-butylamine respectively and in the vapour phase by tributylamine.  Other examples of halogenated ethylenes which may be stabilized are vinyl fluoride, 1 : 1-difluoroethylene, 1-fluoro-1-bromoethylene, 1-fluoro-2-chloroethylene, 1 : 2-difluoro-1 : 2-di-chloroethylene, 1 : 1 - difluoro - 2 : 2 - dichloroethylene and 1 : 1 : 21 - trifluoro - 2 - chloro ethylene.  Other stabilizing agents specified are primary aliphatic amines, such as ethylamine; secondary aliphatic amines such as dihexylamine and methylbutylamine; primary aromatic amines such as beta-naphthylamine and aniline; secondary aromatic amines, such as diphenylamine and phenyl alpha-naphthylamine; tertiary aromatic amines, such as triphenylamine; mixed secondary amines, such as N-monomethylaniline and N-propyl aniline; and mixed tertiary amines such as N-dimethyl aniline and N-butyldiphenylamine. Amines containing alkaryl or aralkyl groups may also be used.  The stabilizer may be removed from the fluoroethylene prior to polymerization by fractional distillation, scrubbing with an acid solution or passing the gas over an absorbent for the stabilizer.
Patent GB-953837-A (GB)
Title: An improved handle for use on motor vehicles, watercraft and aircraft
IPC: B60N3/02
Filed: 1963-01-22
Abstract: 953,837. Handles for vehicles. GEB. HAPPICH G.m.b.H. Jan. 22, 1963 [Feb. 3, 1962], No. 2714/63. Heading B7L. A handle for a vehicle, has a flexible hand grip 1 comprising a steel band core 3 sheathed in a plastics material 2 and having its ends in recesses 13 in mounting member 6, the steel core extending into a cavity 5; and fixing screws 11, 12 pass through bores in the mounting and the core. A pin 14 prevents the material 2 from being pulled off core 3. A cover 15 has ribs 17, 18 which are slid into recesses 19, 20 in the walls of member 6, Fig. 6, and a tab 23 snaps over an edge 25 of member 6 to prevent accidental removal of the cover.
Patent GB-928468-A (GB)
Title: Improvements in or relating to map displays
Inventor: SCRIVENER DAVID HAYTER
IPC: G01C21/22
Filed: 1961-01-25
Abstract: 928,468. Maps. KELVIN & HUGHES Ltd. Oct. 6, 1961 [Jan. 25, 1961], No. 2879/61. Class 146 (2). [Also in Groups XXXVIII and XL (c)] In a map display, in a vehicle or craft, of the kind in which a map and an index are mounted for motion relative to one another in orthogonal directions parallel to the plane of the map (see Group XL (c)), the display is arranged to receive a map which is a series of equal width strips A . . . H joined end-to-end, the strips being taken from a rectangular area 1 of map, lying parallel to one pair of sides of that area, each overlapping the neighbouring ones by equal amounts and being joined end-to-end in the order in which they lie side-by-side in area 1.
Patent GB-489705-A (GB)
Title: Improvements in window constructions
IPC: E06B3/48
Filed: 1937-02-01
Abstract: 489,705. Hinged sliding casements. WILLIAMS & WATSON, Ltd., and COX, G. W. Feb. 1, 1937, No. 2899. [Class 20 (iii)] Hinged sliding casement windows of the kind having a pair of sashes hinged to a sliding post carrying a spindle and upper and lower pinions thereon engaging racks on the frame are provided with guide rollers 8 lying in a horizontal plane engaging channel-guides in the frame. The inner sash 1 may be hinged to the frame.
Patent GB-973469-A (GB)
Title: Improvements in mine roof supports
Inventor: COWLISHAW FRANK
IPC: E21D15/51
Filed: 1960-01-27
Abstract: 973,469. Hydraulic pit props. W. E. & F. DOBSON Ltd. Jan. 20, 1961 [Jan. 27, 1960], No. 2899/60. Heading E1E. An hydraulic pit prop comprises a cylinder 1, a ram 3 and a ram extension 12 having a small diameter top 12a and spaced collars 12b, 12c each provided with a pair of opposed flats 12e, 12f respectively, the flats 12e of alternate collars 12b being angularly offset 90 degrees to the flats 12f of the other alternate collars 12c. Screw threaded on the ram 3 is an adjusting ring 21 internally based and provided with flats to allow the member 12 to be selectively projected therethrough and then locked in position relative to the ram 3. In a modification, Figs. 5 and 6 (not shown), the ring 21 is replaced by a split ring comprising two parts pivoted together and having bolted flange locking means, the split ring being located on the ram 3 by interconnecting projections and recesses.
Patent GB-956807-A (GB)
Title: Electrical suspension insulators with flexible fittings
IPC: H01B17/32
Filed: 1962-01-25
Abstract: 956,807. Insulators. COMPAGNIE GENERALE D'ELECTRO-CERAMIQUE. Jan. 25, 1962 [Jan. 25, 1961], No. 2931/62. Heading H2C. A suspension insulator 1 supports a lower insulator by means of a fitting 3 comprising a bundle of wires cemented into a recess 2. The wires may be twisted together or plaited (Figs. 2 and 3, not shown), and may be enamelled, soldered or coated with a layer of organic or inorganic material. The upper end of the fitting may be splayed out or formed into an enlargement with a solid core and may be provided with an equipotential hood. The end of the fitting may be moulded in a mass of synthetic resin. In a modification, Fig. 4 (not shown), the wire rope ends are intertwined with insulating fibres forming part of the insulator and the space filled with plastics material. A chain of insulators may be used, Fig. 5 (not shown).
Patent GB-1201553-A (GB)
Title: Process for the production of a continuously extractable polyamide-water mixture
Inventor: MITTENZWEI ROLF
IPC: C08G69/46
Filed: 1968-01-19
Abstract: 1,201,553. Mixing in conduits. CHEMIEFASERKOMBINAT WILHELM - PIECK - STADT GUBEN VEB. 19 Jan., 1968, No. 2940/68. Heading B1C. [Also in Division C3] An apparatus useful in preparing liquid homogeneous mixtures of polyamides prior to extraction (see Division C3) comprises a cylindrical body in which are arranged canals which cross each other and which are arranged in a spiral with inverse gradient. In operation, polyamide melt is fed through pipe (a) (e.g. at 260‹C) and water under pressure is fed (e.g. at 170‹C) through (b). The polyamide water mixture is obtained at the crossing points (c) and leaves the chamber at (d).
Patent GB-539785-A (GB)
Title: Artificial sponges
IPC: C08J9/00
Filed: 1940-02-19
Abstract: 539,785. Viscose sponges. SPONCEL, Ltd., and BARKER, C. V. Feb. 19, 1940, No. 3114. [Class 2 (ii)] An artificial sponge, made from a cellulose derivative such as viscose, is subjected to heat and pressure ; this causes a considerable decrease in its thickness without increase in its surface dimensions, but it will swell to its normal thickness when immersed in water. The pressure employed may be 100 lb. per square inch and the temperature may be 90‹ C.
Patent GB-994863-A (GB)
Title: Improvements in and relating to electrical apparatus
IPC: H01F27/00
Filed: 1964-01-24
Abstract: 994,863. Transformers. MATERIEL ELECTRIQUE S.W. Jan. 24, 1964 [Jan. 24, 1963], No. 3142/64. Heading H1T. The core 7 of a transformer is enclosed in a casing 11 through which the phase windings protrude, the protruding parts of each winding being enclosed in an enclosing member. The enclosing members may be bolted or stripsoldered to the casing 11. The apertures in the casing 11 may be blocked during transport. The windings may be transported in casing 11 with closing metal sheets or with the enclosing members on each side joined by plates of metal or insulating material or with a silicone coating sprayed on to the cardboard wrappings around the middle part of the windings. The core limbs may be transported separately or with the windings thereon. Very thin insulating plates may be positioned between the core yokes and the limbs, the yokes being moved into position against the limbs, on assembly, by jacks. The magnetic circuit may be cooled by insulating fluid different from that which insulates the windings.
Patent GB-620947-A (GB)
Title: Improvements in tumbler locks
IPC: E05B21/00
Filed: 1947-02-03
Abstract: 620,947. Door locks and latches. GOLTEN, M. (formerly GOLDSTEIN, M.). Feb. 3, 1947, No. 3231. [Class 44] A tumbler lock comprises a box body, a locking bolt 11, Fig. 1, having a web 16 spaced midway between the side walls, two tumblers 22A, 22B on either side of the web, co-operating with across piece 17 riveted to the web 16 and a key the bit of which is symmetrical about its middle line. The key bit 35, Fig. 9, is formed with a middle part C to engage a notch in the web 16 and two steps A, B, C, D on each side. The tumblers are spaced asymmetrically as shown in Fig. 3 and arranged so that each is engaged by a step of the key bit of the appropriate height irrespective of the side from which the key is introduced. The tumblers are pivotally mounted on a common pin 20 fixed to the body and have identical gate openings 26. the edges co-operating with the key bit are differently shaped so that operation of the key raises all the tumblers through the same angle. The tumblers are loaded by a spring 31 split into separate fingers and mounted on a pin 32. Another limb 33 of the spring actuates a latch bolt 12 arranged to be reversible for use on either side of a door. In another form two or more tumblers are provided on each side of the web, four or as many steps as tumblers being provided on each side of the middle portion of the key bit.
Patent GB-1248242-A (GB)
Title: Photodevelopable silver halide compositions
Inventor: SUTHERNS EDWARD ARTHUR
IPC: G03C1/49
Filed: 1968-01-22
Abstract: 1,248,242. Photo-developable photographic compositions. KODAK Ltd. Jan. 16, 1969 [Jan. 22, 1968], No. 3267/68. Heading G2C. A photographic photo-developable composition contains cuprous iodide, a cadmium salt (e.g. nitrate, sulphate, chloride, bromide or iodide) and silver halide which is at least in part silver bromide. The composition may also contain a halogen acceptor such as thiourea. The cyprous iodide may be preformed or formed in situ or may be a solid solution in silver iodide. The silver halide may have been prepared by precipitation in the presence of P6 ions, thiocyanate ions or a thioether silver halide solvent. The composition may be dispersed in a colloid binder or may be dried and dispersed in a hydrophobic binder e. g. polystyrene, cellulose acetate or ethyl cellulose, or the dry composition may be sprinkled on to transparent self-adhesive tape which is then stuck on to a support.
Patent GB-449698-A (GB)
Title: Improvements in variable-speed gearing
IPC: F16D23/06
Filed: 1935-02-01
Abstract: 449,698. Variable - speed gearing; positive clutches. CLARKE, G. T. SMITH-, Alvis Works, Holyhead Road, Coventry. Feb. 1, 1935, No. 3273. [Class 80 (ii)] Positive clutch members a, a<1>, Fig. 1, in change-speed gearing are synchronized prior to engagement by the momentary engagement of friction clutch members g<1>, f<1>. As a striking member i is advanced towards the right carrying the dog member a, it engages and carries with it also a sleeve g carrying the friction member g<1>. Then the member i slips relatively to the sleeve g to complete the positive clutch engagement. This momentary engagement is effected by a detent, shouldered surface, or recess k, Fig. 3, on the side of a slot in the sleeve, being engaged by a roller l on the striking member i. The roller l by turning round facilitates the slipping action.
Patent GB-465585-A (GB)
Title: Improved apparatus for the production of warm air or gases, for drying wood and other structural materials
IPC: F26B21/00
Filed: 1935-08-06
Abstract: 465,585. Drying apparatus. EISENWERK WESERHUTTE AKT.-GES., and LOSCHE, H. Aug. 6, 1935, No. 3464/37. Divided out of 465,516 under which a Specification was laid open to inspection under Sect. 91 of the Acts, July 30, 1936. [Class 34 (ii)] In apparatus for drying wood a or other material under a loose cover b, comprising a furnace c, a filter f, and a chamber l between the furnace and the filter compartment, furnace gases together with pre-heated air being drawn by a fan e into contact with the wood, the chamber l is provided with an opening at the side to communicate with the furnace and an opening at the top to communicate with the filter. The chamber has a removable receptacle m for collection of flue dust. A heat accumulator, of ceramic material, may be provided in the chamber to enable drying to be carried on after the furnace is extinguished. Dampers o, i<1> are provided to control the supply of drying gases which are distributed beneath the cover b by a member g, or alternatively by a pipe g<1>. Disinfectants , may be introduced into the drying gases. A steam boiler k is provided so that a steam spray applied under the cover is available to control humidity. Specification 381,304 is referred to.
Patent GB-839918-A (GB)
Title: Improvements in carbon black
IPC: C09C1/58
Filed: 1958-02-03
Abstract: Beaded carbon black is produced by subjecting the black to a preliminary dry beading operation as defined, crushing the resulting beads of density within the range 15-28 lbs./cu. ft. thus formed, and reforming the resultant black into beads by a wet beading process as defined, with subsequent drying.  Dry, finelypowdered black of density say 3-15 lbs./cu. ft. is fed into the upper end of an inclined cylindrical drum rotating at 2-20 r.p.m. until the black agglomerates into beads having the required density.  Beads pass from the lower end of the drum over an annular dam which maintains a residual, predetermined level of beads within the drum, to be screened to separate "fines" which are subsequently recycled to the process, the proportion of separated "fines" to acceptable beaded black varying from 1 : 1 to 5 : 1 usually 2 : 1.  A small proportion of water, not above 8% wt. may be incorporated into the dry black before the dry beading process.  The dry beads may be crushed by a separate treatment before entering the wet beading process or be transferred directly to the web-beading apparatus where they are crushed during mixing with the added water, the amount of which may vary from 50-130% wt.  Apparatus employed in the wet beading process may comprise a horizontal trough fitted with a longitudinal rotatable shaft having agitator pins attached normal thereto and arranged in a spiral around the shaft, and water sprays mounted vertically above the trough at 12-inch intervals.  Carbon black is introduced at one end of the trough and is mixed and crushed with a proportion of water required to form wet beads which may be passed subsequently through a series of similar troughs supplied with varying amounts of water depending on the amount already added, the beads being finally dried to a moisture content not exceeding 1%, preferably 0.1%. Specifications 652,139 and 839,919 are referred to.
Patent GB-1370792-A (GB)
Title: Load-indicating means for a nut and bolt assembly
IPC: B25B23/143
Filed: 1972-01-25
Abstract: 1370792 Load-indicating bolts, nuts, and washers G K N SCREWS & FASTENERS Ltd 25 Jan 1972 [29 Jan 1971] 3543/71 Heading F2H [Also in Division G1] To apply a predetermined tension to a bolt in an assembly, the bolt head, or a nut or washer associated with the bolt, includes an external radial flange 20 having a continuous plane annular bearing surface 18 and an internal annular V-groove 15, a portion 17 of the flange defined by the inner wall of the V-groove 15 and an external frusto-conical surface 30 being dimensioned to undergo plastic deformation in shear when the predetermined tension is reached, to cause a reduction in the overall axial length of the bolt head, nut, or washer. To measure the axial length, the plunger 22 of a dial micrometer 21 engages the upper surface of the nut or bolt head via a shoe 23, the micrometer being supported by a sleeve 26 resting at 27 on a workpiece engaged by the nut, bolt head, or washer.
Patent GB-562842-A (GB)
Title: Improvements in or relating to image-bearing sheets for use in connection with polarised light, and method of forming such sheets
IPC: G03C9/04
Filed: 1941-03-14
Abstract: 562,842. Light-polarizing apparatus. STEVENS, A. H. (International Polaroid Corporation). March 14, 1941, No. 3545. [Class 97 (i)] A method of making a light-polarizing image comprises wetting a relief of the image with a solution of a dichroic dye and pressing it into contact with a sheet of transparent plastic material which is molecularly oriented at least at the contacting surface, so transferring the dye image to the sheet. Superimposed images, for example stereoscopic pairs, may be formed by superimposing two such image-bearing sheets having their directions of molecular orientation mutually perpendicular ; alternatively, the dye images may be applied to opposite sides of a single sheet, the molecules at each surface of which have been oriented in a direction at right angles to that of the molecules at the other surface, for example by linear frictional force applied by a scraper. The sheet is preferably made of polyvinyl alcohol, but other linear high polymers, such as' polyvinyl acetal or regenerated cellulose, may be used. The dye may consist of iodine dissolved in a solution of ammonium iodide, direct cotton dyes of the azo type, or most aniline dyes. Specifications 528,796 and 547,554 are referred to.
Patent GB-1514153-A (GB)
Title: Hand utensil for holding a citrus fruit
IPC: A47J17/04
Filed: 1977-01-28
Abstract: 1514153 Citrus fruit holders ACKERET DESIGN STUDIOS 28 Jan 1977 [15 Dec 1976] 03605/76 Heading A4C A holder for holding citrus fruit during cutting or squeezing thereof comprises a bowl-shaped cover 2 and a plurality of gripping arms 16 mounted within the cover and being movable into gripping relationship with the fruit. The arms 16 may extend from a central sleeve 14 projecting through a central aperture in wall 8 of cover portion 6 and secured to a spigot 23 connected to a spring- loaded push button 1. The arms 16 may each comprise a limb 18 having gripping teeth 5, 5' and a further limb 17 slidably guided in an aperture 13 in wall 8 whereby on depression of button 1 limbs 18 are forced apart and on release of the button move to embed teeth 5, 5' in the fruit. In a modification the limb 17 is omitted the arms being spring biased to outwardly open position. Rotational movement of the arms is prevented by ribs 21 on the cover.
Patent GB-467286-A (GB)
Title: Improvements in television apparatus
IPC: H04N3/32
Filed: 1936-02-06
Abstract: 467,286. Television. MICHAELIS, E. (Kinne, E.) Feb. 6, 1936, No. 3622. [Class 40 (iii)] The potential curve of a locally generated voltage of constant periodicity, which deflects a scanning beam in an oscillograph O, is varied according to the brightness of the individual spots in the picture being scanned. There may be a linear or non-linear relation between the rate of change of the deflecting voltage and the brightness of the scanned spots. The unmodulated voltage of constant periodicity is of saw-toothed or triangular form, and is applied to resistances W1, W2 in series. Potentials corresponding to the brightness are applied to the resistance W2, and a modulated potential is thus obtained across the other resistance for controlling the deflection of the cathode ray or for transmission. According ing to modifications : one or more of the resistances is replaced by a valve, the grid of which is controlled to vary the output potential in accordance with the brightness of the spots in the picture, Fig. 2 (not shown) ; the potentials corresponding to the brightness of the spots in the picture control the operative conditions of the cell F1, which generates the constant frequency, by changing the grid bias or affecting a special controlling-grid; the potentials corresponding to the brightness of the picture and the unmodulated oscillations are both applied to the grid of a valve, and the modulated deflecting voltage is taken from the anode circuit.
Patent GB-924388-A (GB)
Title: Brassiere
IPC: A41C3/00
Filed: 1960-02-02
Abstract: 924,388. Brassieres. SARONG Inc. Feb. 2, 1960 [Feb. 2, 1959], No. 3629/60. Class 141. In a brassiere provided with crossed bands 30, 31 below the breast cups 11, 12, the band 31 is secured along its edge 34 to the cup 11 but is unconnected to the cup 12 along a substantial portion of the edge 35, the band 30 being reversely arranged. Each band comprises a section 32 with its direction of major elasticity inclined slightly with respect to the vertical, and a circumferentially stretchable section 33. The upper edge of the section 33 may be secured to the adjacent cup, or the whole of the edge 35 may be free. Specifications 755,556 and 865,621 are referred to.
Patent GB-539152-A (GB)
Title: Improvements in or relating to fireplaces
IPC: F24B1/18
Filed: 1940-02-28
Abstract: 539,152. Heating air. HALES, J. S., and C. U. R. A. PATENTS, Ltd. Feb. 28, 1940, No. 3660. [Class 64 (iii)] An open fronted metal box supporting a grate 23 placed in a fireplace recess is spaced from the bottom and walls of the recess to form air heating spaces into which air flows under the bottom 14 of the box and then upwards through the sides and back spaces to a channel or trough 17 extending across the top of the box and provided with a front air discharge opening 22. The trough is spaced from the back of the box to form a restricted throat 19 for the passage of the hot gases. Specifications 155,024, 162,403, [both in Class 126], and 452,774 are referred to.