baber/WOPTO huggingface dataset:
Patent GB-1040366-A (GB)
Title: Elastic polypropylene yarn and process for its preparation
IPC: D01F6/04
Filed: 1964-06-12
Abstract: 1,040,366. Polypropylene yarn. HERCULES POWDER CO. June 12, 1964 [June 12, 1963], No. 24490/64. Heading B5B. An elastic polypropylene yarn having a recovery of at least 90%, preferably 95%, after being stretched at least 10 times to an elongation of not more than 50% is made by heat treating a polypropylene yarn which has been drawn not more than 150% at 135-155‹ C. Polypropylene yarn may be so heat treated for from 3-30 mins. and thereafter cold drawn 40-80%. The yarn may be in a relaxed state during heat treatment. In an alternative method polypropylene yarn which has been drawn 20-30% at a temperature of 145- 155‹ C. is heat-treated at 145-15o‹ C. under tension. Thus polypropylene yarn may be drawn 20-30% while passing around a roller heated to a temperature of 145-155‹ C. and then heat treated while passing around a second roller heated to 145-155‹ C. rotating at a higher peripheral speed, the yarn being wrapped several times around each roll to give sufficient residence time to bring the yarn to substantially the same temperature as the roll. Yarn having a recovery of at least 95% after being stretched at least 10 times to an elongation of not more than 50% may be made by subjecting a yarn which has been cold-drawn 90-125% to heattreatment at 150‹ C. and thereafter cold-drawing by 75%.
Patent GB-166465-A (GB)
Title: Improvements in and connected with motor cars
IPC: B62D61/08
Filed: 1920-08-24
Abstract: 166,465. Stewart, J. B. Aug. 24, 1920. Frame components, sections and forms of, and applying and combining. - A motor-vehicle body, of aluminium or any other material, is mounted on two pairs of steel frame-members A, of angle or other section, reinforced by a superstructure A<1>, each pair being tied by cross-members B, joints d being made by welding, rivetting, &c., and the front and rear axle carry brackets E, G respectively suspended between springs C, D carried on pins F bolted between the frame members.
Patent GB-1300178-A (GB)
Title: Surface treatment of masked articles
IPC: B05B15/04
Filed: 1971-04-19
Abstract: 1300178 Masking during electrophoretic deposition or electroplating NAGOYA YUKAGAKUKOGYO KK 19 April 1971 [25 May 1970] 24585/71 Heading C7B [Also in Division B2] In a method of surface finishing an article (e.g. by electrophoretic deposition of resin or by electroplating), part of the surface of the article is masked by a protective element made of a heat shrinkable synthetic resin foam during the application of a surface finish to the rest of the surface of the article, and the article is subsequently heated so that the protective element shrinks. The shrunk element can be easily removed. Suitable foams include polystyrene, polyethylene, polypropylene, acrylic polymer and vinyl resin foam. The protective element may be force fitted into a recess or hollow of the article or may be ring or cap shaped and fitted around or over the end of a bar or pipe shaped article, e.g. over the screwed end of a bolt. The cap or ring may have a radial notch at which it breaks when subsequently shrunk by heating. The surface to be protected may be previously coated with a release agent such as machine oil or silicone oil which helps release of the contracted foam. The masking may be used during electrodeposition of alkyd resin or whilst electroplating a bolt with Cr.
Patent GB-411422-A (GB)
Title: Improvements in the treatment of austenitic chromium-nickel steel alloys and of articles made therefrom
Filed: 1932-09-03
Abstract: Chemically neutral austenitic chromium-nickel alloy steels or articles made therefrom are heated at a temperature of 600-900 DEG C. for a sufficient time, e.g. at least 5 hours to cause the carbide particles precipitated from the mass to close up to coarse complexes. The treatment of an alloy steel containing 9 per cent of nickel, 18 of chromium and 0,1 of carbon is referred to.
Patent GB-968105-A (GB)
Title: Improvements in or relating to semiconductor devices
Inventor: CLARK WILLIAM THOMAS
IPC: H01L29/00
Filed: 1961-07-07
Abstract: 968,105. Semi-conductor devices. GENERAL ELECTRIC CO. Ltd. July 4, 1962 [July 7, 1961], No. 24660/61. Heading H1K. A semi-conductor device incorporates a silicon wafer containing a plane PN junction parallel to the main faces of the wafer, the net significant impurity concentration on the N-type side of the junction being less than that on the P-type side, and the surface of the wafer being bevelled at least in the region where the junction meets the surface in such a manner that the surface of the N-type material contiguous with the juction makes an included angle of between 15 degrees and 60 degrees with the plane of the junction. Such a wafer may be produced from a flat wafer of N-type silicon of 25-40 ohm cms. resistivity and having its main faces perpendicular to the 111 crystallographic axis. The wafer is exposed to gallium to produce an all-round surface layer of P-type material having a maximum impurity concentration, at the surface, of about 4.10<SP>18</SP> atoms/cm.<SP>3</SP> A disc cut from this wafer is placed with an aqueous dispersion of carborundum in a part-spherical depression in a steel block and rotated until the whole lateral surface of the wafer is ground to slope 17. Slope 18 is formed by now grinding the wafer in a part-spherical depression of larger radius; the bevelled surface of junction 16 forms the subject of Specification 968,106. The completed wafer may then be used in the production of a silicon controlled rectifier, Fig. 5 (not shown), as also described in Specification 968,353. It is stated in the Specification that the required bevelled surface 17 could be produced by etching instead of lapping. The Provisional Specification describes an etching method involving the use of a simple mask. In an alternative arrangement having a wafer incorporating two parallel junctions a bevel in one sense could be formed where one of the junctions meets the surface, while a bevel in the opposite sense could be formed where the other junction meets the surface.
Patent GB-498664-A (GB)
Title: Improvements in closures for canisters, boxes and the like
IPC: B65D83/06
Filed: 1938-08-23
Abstract: 498,664. Powder distributers. PATON, CALVERT, & CO., Ltd., and PATON, W. Aug. 23, 1938, No. 24718. [Classes 18 and 125 (iii)] A container 1 in which one end is closed by a base 2 having perforations 3 through which the contents can be sprinkled, has a closure disc 4 of cardboard or paper of smaller area than the base and secured by rivets 5 disposed within the area of the disc and surrounding sprinkler openings 3 arranged over a portion only of the base ; the unattached portion of the disc can be gripped between the finger and thumb. On removal, the unattached portion of the closure disc 8 is bent up by inserting the thumb nail under a cut-away portion or by means of a pull-up tag.
Patent GB-708331-A (GB)
Title: Improvements relating to pencil sharpeners and/or pointers
IPC: B43L23/00
Filed: 1949-09-27
Abstract: 708,331. Pencil sharpeners. COSTELLO, E. E. Sept. 26, 1950 [Sept. 27, 1949], No. 24720/50. Class 146(3) A pencil sharpener comprises a pivoted vane 6 supporting an abrading surface 1 which is normally enclosed in a pocket 24 of a base 14, and one or more additional vanes 8, 9 by which the abrading surface may be shifted to a position for use. The surface 1 may be serrated metal or plastic, a fibre containing abrasive, or a. sanded paper, and may be fixed by screws, rivets or clips to the vane 6, or may be formed integral with it. The vanes may be of metal or plastic and pivoted to the case by studs, spindles, or moulded projections thereon, or by suitably shaping the container and vane as at 21, 22, 23, Figs. 6, 10. The additional vanes may carry printed,. transferred or moulded characters &c. and are arranged to cover the pocket 24 when. not in use. The case 14 may also carry printed matter and may be formed of metal, plastic, fibre, rubber, timber, pottery, glass. or stone and formed with further pockets of either a fixed or removable nature for storing ink-bottles or other articles. The top of the case may be fluted to receive pencils or other articles to be sharpened.
Patent GB-1373642-A (GB)
Title: Storage of articles
IPC: A47G29/08
Filed: 1972-01-04
Abstract: 1373642 Brackets; wall mounted furniture F S HEIGHT 4 Jan 1972 [5 Jan 1971] 24784/74 Divided out of 1373641 Headings A4B and A4U [Also in Division F2] The subject matter is identical to that of Specification 1373641 from which the present Specification is divided, but the claims are directed to the bracket or mounting member (4) for supporting and inter-connecting the rail sections.
Patent GB-1172456-A (GB)
Title: Improvements in and relating to sprung seats
IPC: B60N2/50
Filed: 1967-05-31
Abstract: 1,172,456. Resiliently mounted seat. G. FRITZMEIER K.G. 31 May, 1967 [31 May, 1966], No. 25024/67. Heading A4U. In a tractor seat 1, mounted by rockers 2, 3 on a supporting foot 8 and movable downwards against the action of a torsion bar spring 17 in a sleeve 2a, upward and backward movement of the seat to a position in which it does not impede a standing driver is not opposed by the spring but prevented by the releasable engagement of a spring-urged catch 23, pivoted on a bearing 16 for the sleeve, in the interruption in a part-circular collar 25 mounted on the sleeve to prevent uncontrolled oscillation of the seat when travelling over rough ground. The rocker 2 is rotatably mounted in bearings 13 on a shoe 10, slidable on the foot 8, and is welded to the sleeve 2a which is rotatable in bearings 15, 16 secured to the seat, and is fast with the spring 17 at the end 18. The other end of the spring is rotable relatively to the sleeve and secured to a clamp lever 19 adjustable by a screw 20 to vary the pre-stressing of the spring 17 and anticlockwise rotation of the shell is unopposed by the spring, the released catch sliding on the ring and re-engaging under spring action at the same height adjustment of the seat. The U-shaped rocker 3 is pivoted at 4 to the seat and rotatably mounted at 5 in a sleeve 6 fast to a strut 7 slidable in the foot 8, the seat being tipped forwardly to protect it against rain by raising the strut 7 until the linkage passes the top dead centre position. In modifications, the torsion bar spring is in a sleeve by which the upper rocker arm is pivoted to the foot, the locking device being provided in the pivot connection of the lower rocker to the underside of the seat or in any other pivot of the rocker linkage. A shock absorber to damp oscillations of the seat may be provided.
Patent GB-714707-A (GB)
Title: Vehicle steering mechanisms
IPC: B62D3/04
Filed: 1951-10-26
Abstract: 714,707. Vehicle steering mechanism. BURMAN & SONS, Ltd., and BRIGGS, W. H. Oct. 22, 1952 [Oct. 26, 1951; Dec. 15, 1951], Nos. 25061/51 and 29414/51. Class 80 (1) A vehicle steering mechanism comprises a steering shaft c screw-threaded at b and rotatably supported within a fixed tubular member k. A nut member a engaging the thread b has at one end a tubular extension i embracing the shaft c and at the other end an extension carrying a pin m which is connected to a lever e secured to a spindle f rotatably supported in a fixed bracket g and carrying the drop arm h of the steering linkage. The pin m has a partspherical portion n co-operating with a partspherical seating in the tubular extension of nut a and is adapted to rock about a transverse ridge p on a fulcrum piece o inserted in the tube to allow for any small errors of manufacture and ensure a smooth action of the mechanism In place of the fulcrum piece o the pin m may have an inner extension which is guided in a transverse slot in the opposite wall of the tubular extension of nut member a. Alternatively the pin m may have a ball end engaging a double seating in member a and having a circumferential slot engaged by diametrical pins in the tube.
Patent GB-1479357-A (GB)
Title: Compressible printing blanket and method of manufacture
IPC: B41N10/04
Filed: 1975-06-11
Abstract: 1479357 Coated products DAYCO CORP 11 June 1975 [6 Sept 1974] 25068/75 Heading B2E [Also in Division B5] A laminated printing blanket comprises at least one fabric base ply, a surface layer adapted to receive printing ink and a compressible intermediate layer, the intermediate layer comprising an elastomeric matrix having interconnected cavities distributed therethrough, the cavities comprising from more than 40% to 75% of the volume of the intermediate layer. The blanket may be produced by spreading a layer 15 of elastomeric matrix material containing particles of hydrated magnesium sulphate on to a woven fabric base ply 14, curing the matrix so that water of crystallization is liberated from the hydrated magnesium sulphate to form interconnecting passages between the particles, leaching the particles from the matrix to create cavities, rinsing, drying, bonding a fabric layer 17 to the microporous layer so produced by means of adhesive 16, bonding a second fabric base ply 12 to fabric ply 14 by means of adhesive 13, applying a surface layer 18 of elastomeric material to the exposed surface of fabric ply 17 e.g. by spreading, and curing, e.g. at about 290C. The fabric plies may be of cotton, rayon, glass or polyester fibres, the adhesives may comprise neoprene and elastomeric layers 15 and 18 may comprise natural rubber or butadiene-acrylonitrile, neoprene, polysulphide or polyurethane elastomers. Curing of elastomeric layer 15 may be effected by exposure to a temperature of about 290F and leaching effected in hot or cold water. Curing and leaching may be effected in a single step using water at a temperature of 150F to 212F. Drying may be effected at 300-350F for less than three hours using hot coils of a spreading machine, an oven, radiant heat or hot air blowers.
Patent GB-1402787-A (GB)
Title: Electrophotographic copying apparatus
IPC: G03G21/10
Filed: 1973-05-25
Abstract: 1402787 Electrostatic separation HOECHST AG 25 May 1973 [29 May 1972] 25131/73 Heading B2J [Also in Division G2] Residual toner particles 16, removed from a photoconductive drum 1, are recovered by carrying them in an air stream between two spaced, opposed electrodes 12 charged to different potentials. As shown in Fig. 1 the electrodes 12 take the form of rotating discs past which the toner particles 16, removed by a brush 9, are sucked by a blower 10 which exhausts through a conventional mechanical filter 17. The toner particles 16, which are positively charged, are attracted to the negatively charged ones of the pairs of discs 12 and are continuously removed therefrom by wipers 14 to fall into a collector 15. The electrodes 12 are sited as close as practicable to the cleaning brush 9 so that the toner particles 16 do not loose their residual positive charge before reaching them. In another embodiment Fig 2a, stationary rectangular electrodes 12 are used. the wipers 14 being reciprocable. In further embodiments (not shown) the electrodes 12 take the form of concentric cylinders with their axes either vertically or horizontally disposed. In the latter case each cylinder is provided with a slit extending along the line of its lowest generatrix to allow the wiped off toner particles 16 to fall through it into the collector 15.
Patent GB-753423-A (GB)
Title: Improvements in flying machines for horizontal and vertical flight
Inventor: FOCKE HENRICH CARL JOHANN
IPC: B64C29/00
Filed: 1954-08-30
Abstract: 753,423. Convertible aircraft. MINISTERIO DA AERONAUTICA. Aug. 30, 1954, No. 25145/54. Class 4. In a convertible aircraft having wings and propellers for providing lift and propulsion respectively in forward flight and in which the wings and the propellers are movable about an axis or axes transverse to the aircraft whereby the wings may become ineffective with the propellers exerting direct lift on the aircraft, the control mechanism between a pilot's control member and a controlled element, such as an aileron or blade pitchchanging mechanism, is automatically rendered operative or inoperative by pivotal movement of the wings and the propellers. A wing is shown in continuous dotted lines in a position for forward flight and in chain-dotted lines in a displaced position for vertical flight. The wing carries an aileron 24 having a spar 21 mounted for pivotal movement in bearings 22 and a lever 20 on the spar is connected by a rod 18 to a crank-pin 17 on a crank 16 mounted on the outer end of a torque shaft 12 supported by the wing spar 15. The inner end of shaft 12 carries an arm 11 which is connected by a link 10 and a lever 8 to a rock-shaft 1 operated by lateral rocking movement of a pilot-operated control column 5. The arrangement of the parts of the mechanism adjacent the aileron is such that with the wing in position for forward flight the axes of the crank 16 and the rod 18 are substantially at right angles whereby lateral movement of column 5 causes aileron movement. When the wing is moved to a position in which its chord is substantially vertical the aforementioned axes are aligned and no movement of the aileron results from movement of the control column. It is stated that similar mechanism is incorporated in the blade pitch-changing mechanism whereby, with the ailerons inoperative, the pitch change mechanism becomes operative and vice versa.
Patent GB-232127-A (GB)
Title: Improvements relating to measuring the weight or volume, or both, of a liquid contained in a tank or the like receptacle
IPC: G01F23/16
Filed: 1924-10-22
Abstract: 232,127. Steel Barrel Co., Ltd., and Stevens, C. H. Oct. 22, 1924. Indicators actuated by pressure of head of liquid.-A spring-pressed valve 10 normally closes the pipe 4 leading from the bottom of a tank to the pressure-gauge 1 and is opened by a flexible wire 19 actuated by the screw 16 If the tank contains an inflammable liquid, the pipe 4 is filled with a non-inflammable liquid.
Patent GB-1057526-A (GB)
Title: Frame structure for mechanical storage system
Inventor: CHASER ANTHONY ROBERT
IPC: E04H6/08
Filed: 1965-06-15
Abstract: 1,057,526. Storage racks. TRIAX CO. June 15, 1965, No. 25204/65. Heading A4B. A storage rack, especially for pallets, comprises a pair of parallel rows of uprights (1, 1<SP>1</SP>) defining an aisle (2) therebetween, a pair of parallel rows of outer uprights (3, 3<SP>1</SP>), stringers interconnecting the uprights of each row, means (17, 17<SP>1</SP>) rigidly interconnecting each aisle upright (1, 1<SP>1</SP>) and an associated outer upright (3, 3<SP>1</SP>), horizontal pallet support members (15, 15<SP>1</SP>) secured to and between each aisle upright (1, 1<SP>1</SP>) and its associated outer upright (3, 3<SP>1</SP>) to define a plurality of bays on each side of the aisle (2), cross members interconnecting the tops of laterally aligned uprights (1, 1<SP>1</SP>, 3, 3<SP>1</SP>), and adjustable bracing means disposed on the sides and across the top of the structure for squaring the sides and top. The adjustable bracing in general comprises turnbuckles or the like e.g. as at (31, 37, 39) for tensioning diagonal rods, e.g. as at (30, 36, 38). The uprights (1, 1<SP>1</SP>, 3, 3<SP>1</SP>) are supported through the intermediary of shims 87 on flat bars (11, 12) secured to the ground (B). End aisle uprights (1, 1<SP>1</SP>) are adjustably anchored by turnbuckles (70, 70<SP>1</SP>) to rigid vertical truss assemblies (50, 50<SP>1</SP>). Intermediate longitudinal stringers (7, 7<SP>1</SP>, 8, 8<SP>1</SP>) secured to the aisle uprights (1, 1<SP>1</SP>) comprise downwardly open channels serving as guides for rollers (26) carried by a pallet loader (20) which is movable along the aisle between upper and lower rails (22, 23). The loader (20) has a vertically movable, pallet carrying and extracting member (29).
Patent GB-443497-A (GB)
Title: Improvements in hinges
IPC: E05D7/00
Filed: 1934-09-03
Abstract: 443,497. Hinges. CHESTON, A. S., and SLEIGH, H. L., Widney Works, Bagot Street, Birmingham, and BOOTH, J. H., Idris, Lichfield Road, Four Oaks, Sutton Coldfield. Sept. 3, 1934, No. 25273. Addition to 421,758. [Class 65 (ii)] In long hinges for sheet metal structures, such as motor - vehicle bonnets, of the kind described in the parent Specification, the cover plate is formed independently of the hinge and is secured detachably to the hinge independently of the connection between either hinge member and its associated panel member, in order that the hinge and cover may be given different finishes and then secured together without damaging either. In the form shown, one hinge member 14 has tongues 18 bent round the hinge pin 19, and the other, 20, has a flange 21 passing beneath the pin and cut away to clear the tongues 18. The cover plate 23 has two wings, one of which engages between the hinge member 20 and a doubled-over part 12 of the associated panel member, while the other wing abuts the edge portion of the flange 21 and is covered by a part of the other panel member ; this wing is preferably detachably secured to the flange 21, for example, by screws or by bending over its edge to embrace the edge of the flange. In a modification, the flange 21 is replaced by a series of tongues similar to 18, bent round the hinge pin, the cover being attached only as shown at the righthand side ; in this form the cover may, however, be provided with a series of eyes engaging the hinge pin and welded or otherwise secured to the left-hand wing of the cover, or with such an eye at one end and a detachable clip engaging the pin at the other end.
Patent GB-338555-A (GB)
Title: Improvements in bifocal lenses
IPC: G02C7/06
Filed: 1929-08-20
Abstract: 338,555. Banister, A. Aug. 20, 1929. Spectacle lenses. - In the manufacture of bifocal lenses, a layer of non-splinterable flexible material is interposed between the double lens 1, 2 and a covering glass 4. The material 3 is of the kind employed in the production of non-splinterable glass plates and may consist of a mixture of cellulose acetate, glucose and acetone oil. Specification 10773/99 is referred to.
Patent GB-366002-A (GB)
Title: Improvements in methods for the removal of colloidal silica from mixed solutions obtained during the treatment of powdered silicates with acids
Filed: 1930-08-25
Abstract: To remove colloidal silica from the solutions obtained by treating powdered silicates with acids, the solutions are filtered through the residue obtained by treating a granular silicate with acid.  The residue may be preliminarily obtained and the solution then passed there-through, or acid may be caused to pass repeatedly through a mixture of powdered and granular silicate. The removal of silica is facilitated by increasing the temperature of the solution and the concentration of acid or salts. Specification 181,677, [Class 1 (ii), Inorganic compounds, other than &c.], is referred to.ALSO:To remove colloidal silica from the solutions obtained by treating powdered silicates with acids, the solutions are filtered through the residue obtained by treating a granular silicate with acid.  The residue may be preliminarily obtained and the solution then passed there-through, or acid may be caused to pass repeatedly through a mixture of powdered and granular silicate. The removal of silica is facilitated by increasing the temperature of the solution and the concentration of acid or salts.  Specification 181,677, [Class 1 (ii), Inorganic compounds, other than &c.], is referred to.  The Specification as open to inspection under Sect. 91 (3) (a) refers generally to the separation of colloidal substances from liquids by passage through a granular mass of the same or another colloid.  This subject-matter does not appear in the Specification as accepted.