baber/WOPTO huggingface dataset:
Patent GB-882856-A (GB)
Title: Treatment of metal surfaces for the manufacture of lithographic plates
Inventor: CHEBINIAK PAUL
IPC: B41N3/03
Filed: 1960-02-08
Abstract: A lithographic plate is made by first treating a metal base with a hot aqueous solution of a composition comprising a phosphate glass, a silicate and a compound selected from the class of borates, phosphomolybdates and silicomolybdates, and then coating the resulting hydrophilic layer with a water-soluble, high molecular weight (i.e. above 230), light-sensitive diazo compound capable of being tanned by U.V. light to produce a positive visible image (see Group XX).  The metal base may be of aluminium or an alloy thereof, or of copper, lead or zinc.  The solution preferably contains, by weight, 2-15% alkali metal or alkaline earth metal phosphate glass, 0,5-3% alkali metal silicate (particularly sodium metasilicate), and 0,5-3% alkali metal or alkaline earth metal borate, phosphomolybdate or silicomolybdate e.g. borax, potassium tetraborate, sodium or potassium metaborate, lithium tetraborate or metaborate, calcium or strontium metaborate, sodium silico-12-molybdate, sodium 2-phospho-18-molybdate and sodium phospho-12-molybdate, and is preferably used at a temperature of 50-100 DEG C.  Specifications 223,994, 764,442, and U.S.A. Specifications 2,035,380, 2,475,946, 2,507,956, 2,568,936, 2,714,066, 2,773,779, 2,796,371 and 2,826,501 are referred to.
Patent GB-801557-A (GB)
Title: Improved printing screens of the stencil type
IPC: B41C1/14
Filed: 1954-08-04
Abstract: 801,557. Stencils. McCORMICK, W. P. Feb. 11, 1955 [Aug. 4, 1954], No. 4440/55. Divided out of 801.556. Drawings to Specification. Class 100(2) An endless flexible printing screen patterned for use as a stencil comprises fine metal wires woven as a web which is cut to a selected length and the ends of which are inter-connected to form an endless substantially continuous warp-andweft structure, of a length equal to an integral number of pattern repeats. The pattern is formed by known photographic means, for example, the screen is coated with a film of light-sensitive solution of bichromated polyvinyl alcohol, which is dried and then exposed to light with a pattern applied to it, and the coat is washed with water, leaving a negative of the pattern. The screen may be 4 ft. 6 in. wide. The wires are of round section and the weave from 20-200 wires per inch. The ends of the warps may be welded together or the end wefts may be welded side by side, the warp ends being welded to their respective end wefts. The jointing may be done by any of the methods described in Specifications 350,541 and 483,590 [both in Group XXII].
Patent GB-139167-A (GB)
Title: Improvements relating to starting devices for internal combustion engines
IPC: F02N11/02
Filed: 1920-02-13
Abstract: 139,167. Bosch Akt.-Ges., R. Feb. 20, 1919, [Convention date]. Turning-gear.-In an electric starter in which the starting-pinion d is moved outwards into engagement with the toothed fly-wheel e by the axial movement of the armature, the spring f which normally holds the pinion d out of engagement is housed in the hollow armature shaft i. One end of the spring is connected to a ring l in the shaft i, and the other end bears against a head k on a rod g carried by the end plate h of the motor casing. The armature shaft is guided by a bush m on the plate h.
Patent GB-980623-A (GB)
Title: Improvements relating to cross-flow blowers
IPC: F04D29/28
Filed: 1961-02-07
Abstract: 980,623. Transverse-flow blowers. FIRTH CLEVELAND Ltd. Feb. 7, 1961 [Feb. 12, 1960], No. 4538/61. Heading F1C. [Also in Division F4] In a transverse-flow blower, the impeller comprises a series of flow-dividing elements secured to the blades and extending transversely thereof, adjacent elements being spaced in the axial direction by substantially less than the radial depth of a blade. This reduces noise. As shown in Fig. 3, wire 20 may be wound helically about the outer edges of the impeller blades 21, each turn of the wire comprising one of the flow-dividing elements. The wire may be replaced by a flat strip wound edgewise. Alternatively, thin rings of greater radial depth than the blades may be stamped with slots in which the blades are inserted so that the rings extend perpendicular to the impeller axis. The rings may be thickened at the pressure (i.e., concave) side of each blade to displace the fast portions of the flow into the region of the suction (i.e. convex) side. Fig. 4 shows an impeller in which rings 60 of serrated form are provided, whereby the channels formed between the rings are of greater depth adjacent the suction side 62 of each blade, where the velocity of flow is greater, than on the pressure side 63. The flow-dividing elements may instead comprise a series of fins 103, Fig. 5, carried by each blade 100. On the suction side of the blade, the fin is confined to the outer edge of the blade where breakaway of flow may occur. In a modification, the fins merge into each other at their outer edges to form a closed ring. Specifications 757,543 and 876,611 are referred to.
Patent GB-827763-A (GB)
Title: Threaded carbon member for connecting carbon electrodes and method of making same
IPC: H05B7/14
Filed: 1957-02-11
Abstract: 827,763. Furnace electrodes. GREAT LAKES CARBON CORPORATION. Feb. 11, 1957 [Feb. 23, 1956], No. 4574/57. Class 39(3) A threaded carbon member for connecting correspondingly threaded carbon electrodes is characterized in that it is partly impregnated from the surface inwardly and to the extent of from about 10% to 75% of the total available porosity with a liquefiable carbonizable composition, e.g. tar, pitch, or synthetic resin. As shown, a threaded graphite nipple 11 is partly impregnated as at 14 and 16 with, for example, coal tar pitch for a distance of about half the longitudinal and radial axes thereof, the inner pores 15 containing entrapped air or other gas. The impregnation may be effected by immersing the nipple in a coal tar pitch having a softening point between about 60C to 120 C and maintaining a temperature of about 250C and a pressure of 50 lbs. per square inch Specifications 670,162 and 760,187 are referred to. Reference has been directed by the Comptroller to Specification 744,208.
Patent GB-180000-A (GB)
Title: New and useful improvements in condensing apparatus
IPC: B61C1/12
Filed: 1921-02-10
Abstract: 180,000. Foster, J. Feb. 10, 1921. Cooling condensers, air blast and deflectors for. -In a condensing system for light steam locomotives in which lateral chambers connected by tubes c are divided into compartments so that the course of the exhaust gases is zig-zag, a fan arranged in a casing 12 having hinged doors 14 delivers air into the smoke stack 13. The fan draws air through the grating of tubes, the draught being regulated by means of a lever 18 connected to a sliding piece 15 connected to the doors 14 by links 17.
Patent GB-1048382-A (GB)
Title: Improvements in or relating to self-locking nuts
Inventor: MATTICK JAMES LEONARD
IPC: F16B39/284
Filed: 1963-01-11
Abstract: 1,048,382. Making self-locking nuts; rolling. FIRTH CLEVELAND FASTENINGS Ltd. April 13, 1964 [Jan. 11, 1963; June 27, 1963], Nos. 4727/65 and 16347/65. Divided out of 1,048,381. Headings B3A and B3M. [Also in Division F2] A metal self-locking nut includes a polygonal body portion 1 and an integral annular upstanding collar 2 which is deformed inwardly from a round to an oval section. The collar before deformation may be cylindrical, convex, or concave in profile or tapered as at 7 (Fig. 3, not shown). A milled edge can be provided on the collar and the threads coated with lubricant. Methods of manufacturing the nut are described in Specification 1,048,381.
Patent GB-715645-A (GB)
Title: Improvements in and relating to the construction of buildings and to cavity blocks used in the construction thereof
IPC: E04B2/02
Filed: 1952-02-22
Abstract: 715,645. Walls; building blocks. BRUCE, R. Feb. 23, 1953 [Feb. 22, 1952], No. 4765/52. Classes 20 (4) and 87 (1) The upper and lower flanges 9 of cavity blocks are recessed at 10 to present narrow longitudinal bearing surfaces, the blocks being assembled dry and filled with concrete or like. The concrete forms, in the recesses 10, continuous longitudinal fillets at the junction of the blocks and the load is transmitted, in part, through the concrete to the sides of the block. The ends 6 are interlocking and the block is preferably provided with a central division 7. Vertical strips of nailable concrete may be incorporated into the side of the block. According to the Provisional Specification the block may consist of two rectangular blocks joined by ties.
Patent GB-818417-A (GB)
Title: Method of continuously applying to steel strip a protective film of lacquer or the like
IPC: B05D3/02
Filed: 1956-02-15
Abstract: A metal strip 10 from a coil 11 is coated at 15 on one or both sides with a liquid containing a heat-curable synthetic resin and a volatile solvent, rapidly heated by electromagnetic induction units 16 to 500-800 DEG  F. before the solvent has evaporated, and rapidly cooled by air blast from nozzles 19 and/or water 20 through which the strip passes.  Water droplets may be entrained in the air streams. The metal strip may be low carbon sheet steel, tin plate, or black plate.  The heat-curable resin composition may be a toluene solution of phenolic resin and tung oil, polyvinyl butyral and phosphoric acid in an organic solvent, a solution of a vinyl-modified phenolic resin in an organic solvent, or a solution of alkyd resin. <PICT:0818417/III/1>
Patent GB-114470-A (GB)
Title: An Improved Bevelling or Skiving Knife.
IPC: C14B1/00
Filed: 1917-04-03
Abstract: 114,470. Lee Premier Engineering & Tool Works, J., Lee, J., and Barlow, F. April 3, 1917. Bevelling, skiving, &c. -A bevelling or skiving knife is formed with the Lacking of the blade substantially proportional to the intended varying thickness of the skived material. As shown, the knife is formed of a bar of rectangular section with the cutting-edge extending diagonally across the end.
Patent GB-251383-A (GB)
Title: Improved cut-off mechanism for cigarette-making or like machines
IPC: A24C5/28
Filed: 1925-02-23
Abstract: 251,383. Humpage, T. Feb. 23, 1925. Cigarette-making machines. -In a cutting-device for severing cigarette rods or the like, so that the cuts are square with the rod &c., and comprising a rotary cutter carried by an arm which is oscillated about, and reciprocated along, its axis as described in Specification 6698/13, the arm 27 carrying the cutter 33 is secured to a shaft 16 which receives the double motion from a crankarm 13 secured thereto and having pivotal engagement with an eccentric 4 mounted in a rotating disc 2. The arm 13 has a spherical connection 9 to a bush 7 mounted eccentrically within the eccentric 4, and the motion imparted to the cutter is adjusted by rotatably adjusting the eccentric 4 within the disc 2, and by connecting the arm 13 to the ball 9 in either of two positions by passing a pin 12 through one or other of the slots 12a, 12b. Again, the arm 13 is provided with an adjustable end portion 15, the position of which may be varied while the machine is in motion by means of worm gearing 14, 15 actuated by a handwheel 24 and jointed telescopic connection 21, 22, 23. The cutter 33 bears against a ledger plate 32 carried by an arm 30 which reciprocates axially with the shaft 16, the cigarette &c. rod passing centrally through the ledger plate.
Patent GB-551818-A (GB)
Title: Improvements in apparatus for measuring impedance irregularities in transmission lines
IPC: G01R31/11
Filed: 1942-04-14
Abstract: 551,818. Locating faults ; oscillographs. STANDARD TELEPHONES & CABLES, Ltd. April 14, 1942, No. 4890. Convention date, March 26, 1941. [Class 37] Apparatus for locating and measuring impedance irregularities in a carrier-current or television transmission system, and adapted to be used in manufacture to indicate imperfections or in the field to indicate suitability for the purpose in view, comprises an oscillograph 13 having its vertical deflecting plates 28 connected to receive impulses transmitted into and reflected from the line 21 under test, which impulses are generated by a generator 20 and its horizontal deflecting plates 29 connected to a source 10 of fundamental sinusoidal waves from which generator 20 is energized. The source 10 which produces the horizontal scanning of the beam is synchronized with the generator 20 so that successive impulses 35 of the latter are superposed so as to produce a standing wave, the vertical dimensions of which give the indication of the magnitude and location of the irregularities such as the large, medium, and small changes indicated on the trace at 36, 37 38 respectively. The characteristics of the trace also denote whether the irregularity is resistive or reactive.. The impulse circuit includes a variable-gain amplifier 22 and an amplifier 33, both of which have flat gain and constant delay characteristics over the range of impulse and harmonic frequencies. To ensure uniform attenuation for all frequencies, an attenuation network 23 shunts the line 21, allowance being made for it in calibrating the apparatus. The amplifier 22 may be replaced by a calibrated attenuator 31 and amplifier 32 in series, a rough estimate of the magnitude of the irregularity being obtained by adjustment of the attenuator to bring the magnitudes of the direct and reflected impulses into coincidence, and corrections in the attenuator-reading being made in respect of extraneous impedances. Accurate calibration may be effected by superposing a one-megacycle wave on the reflected waves, or by introducing known impedance irregularities at certain points in the line. The location of an irregularity may be effected by initial adjustment of the phase-shifter 14 to bring impulse 35 to a given mark on the screen, and then further adjusting it to bring the irregularity, say 36, to the same mark, the reading of the phase-shifter then giving the distance. Specifications 460,690 and 551,282, [Group XL], are referred to.
Patent GB-1045161-A (GB)
Title: Improvements relating to anchor bolts
Inventor: DUNCANSON RICHARD EDWARD FORD
IPC: E21D21/00
Filed: 1963-02-07
Abstract: 1,045,161. Anchor bolts. BAYLISS JONES & BAYLISS Ltd. Feb. 5, 1964 [Feb. 7, 1963]. No. 4958/63. Heading F2H. In an anchor bolt comprising an expansible sleeve-like anchor member 10 and a tie-bolt 20 provided with a head 14 for effecting expansion of the anchor member after insertion thereof in a bore hole, the member 10 comprises a number of segmental shells 11 each having a longitudinal guide slot 22 bounded at opposite ends by abutment faces 25, 26 and the head member having radial lugs 21 movable along the slots 22. The abutment faces 25, retain the shell 11 against axial movement relative to the head 14 during insertion of the anchor bolt into the bore and so prevent separation of the flared or divergent entrance portions 13 of the anchor member 10 from the head 14 also the abutment faces 26 prevent the head from being pulled through the anchor member when it has undergone full expansion. Each shell has grooves 32 which bite into the walls of the bore when the anchor member is expanded. A retaining member 27 assembled with the anchor member at its outer end, has limbs 30 which dig into the sides of the bore hole to prevent withdrawal. In a modification the bolt has a screw-threaded portion at its outer end and a nut for drawing the bolt outwardly of the bore hole. The tie-bolt may be integral with the head.
Patent GB-166494-A (GB)
Title: Improvements relating to tubular wall plugs made from string or like material
IPC: F16B13/02
Filed: 1921-02-12
Abstract: 166,494. Rawlings, J. J., and Rawlplug Co., Ltd. Feb. 12, 1921. Sockets and plugs for nails &c. -A tubular wall plug made of longitudinal strands of string or like material united by adhesive, is tapered or pointed at one end d by cutting away material from a cylindrical plug, so that it can be readily inserted in a hole made to receive it.
Patent GB-449271-A (GB)
Title: Method of and means for separating mixed metal turnings and the like
IPC: C22B7/00
Filed: 1935-02-16
Abstract: 449,271. Separating metals. AIKEN, A. F., 30, Fawe Park Road, Putney, London. Feb. 16, 1935, No. 5057. [Classes 23 and 82 (i)] Metals of different melting-points are separated by heating the mixture to a temperature sufficient to melt one or more of the constituent metals while rotating the mass in an open pan over the upper edge of which the molten metal is thrown out. In the apparatus shown, the metal is heated by a gas ring 9 in an annular space 3 formed between a base 1 and ring 2 rotating on a vertical shaft 4. The liquid metal is collected against a cylindrical wall 5 where it solidifies, while the residue is removed through a shoot 8 into which it is dropped by depressing the shaft 4 and base 1.
Patent GB-585554-A (GB)
Title: Improvements relating to self winding cable reels
IPC: B65H75/44
Filed: 1945-03-01
Abstract: 585,554. Spring drums. RUSHWORTH, D. March 1, 1945, No. 5078. [Class 78 (ii)] A self-winding cable reel is provided with a brake which is applied to the reel when a predetermined or desired length of cable has been wound on. The cable A<1> passes to the reel B through a guide A which is fast on a shaft C. This shaft is angularly adjustable in an arm D freely mounted on the fixed axle E of the reel. The shaft is secured to an arm F which carries a brake shoe G. When a button H which has been attached to the cable at the desired point, engages with the guide A, the shaft is turned and the brake applied to the spring casing B<1>. When the movement is reversed, a spring returns the shaft to its initial position. In a modification the button is dispensed with and the brake applied by pulling a cord attached to an arm fast on the shaft C. In other modifications the brake shoe is replaced by a contracting band or a friction disc and may be actuated by an electromagnet.
Patent GB-339201-A (GB)
Title: Improvements in and relating to tire inflation
IPC: B60C23/00
Filed: 1930-02-15
Abstract: 339,201. Zinsitz, M. G. Feb. 15, 1930. Inflating, methods of. - Means for inflating tyres from a compressed air supply which may be carried on the vehicle comprise a drum 'I mounted to rotate with the wheel, a pipe connection 4 leading to a valve 3 adapted to receive the supply pipe, and a pipe connection 10 leading from the chamber 14 of the drum to the tyrevalve and maintaining the latter open. A pressure gauge 6 may be fitted to each of the pipes 4. The side walls of the drum 7 are grooved to receive non-rotating slides 17, 18 and a packing-ring 19, the pipe 4 being fitted with a nozzle 16 passing through the parts 17, 18, 19.
Patent GB-773826-A (GB)
Title: Improvements in or relating to the development of small-size photographic films
IPC: G03D3/13
Filed: 1955-02-21
Abstract: 773,826. Developing photographic films. SCHLEUSSNER FOTOWERKE GES., C. Feb. 21, 1955 [Mar. 12, 1954, Oct. 29, 1954], No. 5153/55. Drawings to Specification. Class 98(2) Individual cut films such as dental films or dosimeter films are each attached for development, to at least one adhesive strip of flexible developerproof material to form a continuous string of films. A single strip may be applied to one face of one lateral margin of each film or, it may enfold the margin. Two strips may be applied to the opposite faces of the same margin on to the same face at opposite margins or, the strips may enfold both opposite margins of each film. Four strips may be applied to both faces at both opposite lateral margins of each film. Machines may be used to apply the strips and the resulting string of films may be developed in the same way as a strip of film. The films can subsequently be separated by cutting the strips.
Patent GB-548082-A (GB)
Title: Improvements in and relating to ash removal mechanism for gas producers
IPC: C10J3/34
Filed: 1941-04-22
Abstract: 548,082. Toggle linkages. MORGAN CONSTRUCTION CO. April 22, 1941, No. 5191. Convention date, April 26, 1940. [Class 80 (iii)] [Also in Group XII] In a rotary gas producer of the kind in which an ash removal plough in the ashpan is rotatable with the gas producer and is adapted to be held stationary to discharge ashes by a releasable latch engaging with an arm of the plough, the 'latch is locked by mechanism comprising toggle linkage to hold the plough stationary and provided with unlocking means to release the latch. As shown in Figs. 1 and 2, an arm 12 of the plough projects outwardly beyond the rim of the ashpan 11 of the producer 10 so that it may be engaged by a latch 20 supported at one end of a shaft 19 mounted, in a bracket 15 secured to a column 14. The opposite end of the shaft 19 is provided with a pivoted lever 29, 30 to which is secured a a heavy weight 32 and a lever 25 keyed to the shaft and carrying a light weight 26. The levers 29, 25 are provided with depending arms 36. 24 connected by toggle linkage 38, 41, the link 41 being provided with a lug 44 and set-screw 45 to engage the upper 'surface of the link 38 and limit the downward movement of the pin 40 to a point slightly below the line joining the pins 37, 42. In the position of the mechanism shown in Fig. 1. the arm 12 is engaged by the latch 20 and when it is desired to release the latch, an electric motor 51 is energized to operate hydraulic apparatus 50 of the 'kind described in Specification 437,176, [Group XXIX], and raise an abutment 48 to engage with a lug 47 on the toggle link 38 and so unlock the toggle and permit movement of the arm 24, lever 25, shaft 19 and latch 20 by the pressure of the plough arm 12. If during the ploughing operation the pressure against the latch should become excessive the arm 29 and weight 32 will be lifted to allow the plough arm to pass beneath the latch. The latch may be rendered inoperable by means of a screw 55 mounted on the lever 25 which when the toggle is broken may be screwed down to engage. with the lever 29 to prevent the toggle from locking. At each revolution of the producer the arm 12 will simply lift the latch and pass beneath it.
Patent GB-1361741-A (GB)
Title: Process for producing a porous carbon electrode
IPC: H01M4/96
Filed: 1972-02-03
Abstract: 1361741 Gas diffusion electrodes KUREHA KAGAKU KOGYO KK 3 Feb 1972 [3 Feb 1971] 5191/72 Heading H1B [Also in Division B5]  In a method of producing a porous carbon electrode for use in fuel or metal-air cells, hollow carbon microspheres of diameter 5-100 Á and wall thickness 0À5-25 Á are mixed with a carbonizable binder in the ratio 100 : 5 to 100: 60 by weight, the mixture moulded to the desired shape of the electrode, and the electrode heated to carbonize the binder; the carbon electrode produced is activated either by heating in an oxidizing gas atmosphere (air, NO 2 , Cl 2 ) or by immersion in a liquid oxidizing agent (nitric acid, phosphoric acid, sulphuric acid, bichromate or permanganate solution) followed by heating. The binder may be a phenol resin, furfuryl alcohol resin, polyimide, silicone resin, epoxy resin, furan resin, polyurethane, polyvinyl chloride, polyvinylidene based resin, polyacrylonitrile polyvinyl alcohol, starch, caramel or millet jelly. The moulding is done by compression at less than 50 kg/cm<SP>2</SP>. After treatments such as waterproofing or metal deposition (platinum, osmium) may be carried out. The carbon microspheres are preferably made by the method disclosed in Specification 1,318,324. The electrode produced may have an average pore diameter of 0À5-20 Á, a porosity of 5-50%, a bulk density of 0À2-0À9 g./cc. and a surface area to weight ratio of 600-2000 m<SP>2</SP>./g. The Specification describes fuel and metal-air cells using the carbon electrode in Application Examples 1-3.