baber/WOPTO huggingface dataset:
Patent GB-525845-A (GB)
Title: Improvements in or relating to pit props and the like
IPC: E21D15/14
Filed: 1939-03-02
Abstract: 525,845. Mine supports. SYLVESTER, W. March 2, 1939, Nos. 6778 and 3777140. [Class 20 (ii)] A sprag or stay for use with a mine prop for supporting a bent-bar adjacent to a working face comprises a bar with a screw extension part, one part being shaped at its end to allow of rotation while the other part is shaped to resist rotation while in engagement with its abutment. The prop may be provided with a post having a number of teeth or abutments as described in Specification 518,084 but, according to the present form, the post is provided with teeth 26 against which abuts the chisel-shaped end of a screw 15 which is adapted to screw in and out of a fitting at one end of a channel-shaped bar, the other end of which is provided with a pointed fitting, allowing the bar to rotate for adjustment. The pointed end of the sprag engages the end of a bent-bar 25. The sprag may be formed in telescopic sections 1, 2 adapted to be screwed together for rough adjustment by pins 7 engaging registering apertures in the sections, the pins having projections 9 adapted to pass through slots in washers 5 welded to one section and by rotation to engage beneath the washers. One end of the section 2 is provided with a pin 11 for engaging the end of the bent-bar. The end screw 15 may be carried in a head fitted on the end of the main section, this head having an inclined plate 13 to abut against an inclined plate on the end of the section so that the head can be quickly released when a retaining lever 17 is tripped as described in Specifications 514,185, and 514,197. The lever is held in operative position by a sliding spring clip 21 on the flange of the main section of the sprag.
Patent GB-828463-A (GB)
Title: Improvements in or relating to conveyor systems
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: B65G17/00
Filed: 1957-03-01
Abstract: 828,463. Conveyers. KING Ltd., G. W. March 3, 1958 [March 1, 1957], No. 6918/57. Class 104 (2). In a conveyer system having load carriers propelled by driving dogs projecting upwardly from an endless driving chain running in a fixed track and supporting the load carriers, an arrestor mechanism comprises an air or fluid-operated vertically-movable stop 21 which projects into the path of a load carrier and arrests it and retracts only when a driving dog is in proper engagement with the carrier. The dog is ejected by a ramp 15 on a slidable angle-plate 13 held against stops by an air or fluid-operated ram 14, the ramp engaging a plunger 12 on the carrier which ejects the dog. The chain passes over a resilient ramp 31 which normally urges the dogs into engagement. A pivoted lever 24 engages a stop 26 on the stop 21 and a stop on a rod 16 slidably mounted in the plate 13 adjacent one end of the ramp. When the driving dog is not completely ejected the rod 16 rises and tilts the lever into engagement with a stop 27 on a vertically slidable back-stop 22 to maintain it in arresting position. A spring-loaded lever 33 pivoted on a bracket on the plate 13 has a projection 36 extending into the path of a stop on the rod 16 should a driving dog be not properly engaged, the plate 13 slides forwardly against the action of the ram 14 and a roller 38 on the lever 33 engages a fixed ramp 39 and forces the lever to pivot, depressing the rod 16 and disengaging the driving dog, the plate then returns to its initial position. When a driving dog is correctly engaged the rod 16 rises, operating a valve for an air or fluid-operated cylinder 19 to retract the stop 21, allowing the carrier to be driven forwardly. The stop and rod then return to their initial positions. The ram 14 and stop 21 may be controlled by springs. A spacer comprising a spring-loaded pivoted lever 28 contacts an arrested carrier and pivots so that the lever arrests a succeeding carrier. The Provisional Specification describes a stopmember 21 comprising a double-armed lever operated by an air cylinder. Specifications 701,610 and 785,801 are referred to.
Patent GB-1088622-A (GB)
Title: Improvements in or relating to pneumatic damper assemblies for automatic firearms
IPC: F41A3/94
Filed: 1965-02-17
Abstract: 1,088,622. Pneumatic dampers for breech mechanism RHEINMETALL G.m.b.H. Feb. 17, 1965 [Feb. 22, 1964], No. 6921/65. Heading F3C. [Also in Division F2] A pneumatic damper for the breech mechanism of an automatic gun such as a rifle comprises a cylinder 6 in the form of an extension of the breech block carrier 5 and a piston 10 formed on the end of the fixed tubular support 8 for the return spring 7. A port 18 or ports is or are formed in the cylinder wall and a port 17 in the piston or a port in the cylinder end closure member 13 is also provided.
Patent GB-512717-A (GB)
Title: Improved process for printing textile and like fabrics
IPC: D06P5/24
Filed: 1938-03-05
Abstract: 512,717. Printing textiles &c. HORRIDGE & CORNALL, Ltd., and MACGREGOR, J. March 5, 1938, No. 6957. [Class 15 (ii)] [Also in Group XVI] Textile fabrics, paper and leather are given an irregular spotted, speckled or like ornamentation in colour on a white or coloured ground, or in white on a coloured ground, by applying in a suitable liquid a dyestuff, resist or discharging agent by a brush, spray or other means to a printing surface which is either of itself liquid repellent or has been rendered so by a coating of a liquid repellent substance, so that the liquid spreads over the surface in globules, and using this printing surface, for printing directly on to the fabric &c. or first on to another textile or like material from which the design is reproduced by customary'printing methods. The printing surface may be (a) wax carried by a wooden or other printing block, (b) an endless band, of oiled silk from which the dyestuff &c. may be transferred to the fabric &c. by passing them in contact between rollers, (c) oiled silk affixed to a printing roller, or (d) a film of oil or grease applied to a roller or other printing support. The printing surface may be provided with grooves or recesses to which the dyestuff &c. is restricted so that the spotted effect is obtained 'only in localized areas. In examples, (1) a cotton cloth, dyed a plain indigo blue, is passed between rollers together with a rubber sheet, coated with wax or with a solution of cellulose acetate in acetone, on to which coating has been spread in small globules, by brushing or spraying a composition customarily used for the chlorate discharge of indigo ; the discharge is then effected by steaming, (2) Indigosol red HR is incorporated in the discharge composition in (1), (3) a white or coloured cotton cloth is passed between rollers together with a rubber sheet coated as in (1), on to which coating has been spread in small globules, by brushing or spraying, an aqueous solution of a vat dyestuff such as Indanthrene blue 5G, (4) a cotton cloth, impregnated with Naphthol AS, is passed between rollers together with a sheet of oiled silk, untreated or coated with wax or with a solution of cellulose acetate in acetone, on to which sheet has been spread in small globules, e.g., by spraying, an aqueous resist solution of aluminium sulphate, whereupon the cloth is padded with a solution of a diazo preparation such as Variamine blue B and the colour developed.
Patent GB-1441882-A (GB)
Title: Process for the production of polyisocyanates with a biuret structur
IPC: C07C239/00
Filed: 1974-02-15
Abstract: 1441882 Polyisocyanate addition products BAYER AG 15 Feb 1974 [17 Feb 1973] 6981/74 Heading C3R [Also in Division C2] Synthetic resins are obtained by an isocyanate polyaddition process using low-viscosity polyisocyanates with biuret structures which have been obtained by reacting organic diisocyanates which contain aliphatically bound isocyanate groups, with biuretizing agents which may contain inert substituents and do not form constituents of the products, and removing excess unreacted di-isocyanates, the molar ratio of organic di-isocyanate to biuretizing agent corresponding to a molar ratio of organic di-isocyanate to monofunctional biuretizing agent of at least 11 : 1. Examples illustrate the production of resins (a) from a polyester polyol of phthalic anhydride and trimethylol propane, (b) by cross-linking the polyisocyanates with moisture in the presence of zinc 2-ethyl caproate, (c) from a polyester of phthalic acid and trimethylol propane in admixture with toluene, ethyl acetate, butyl acetate, glycol monomethyl ether acetate and titanium dioxide, (d) from a polyester of phthalic acid and trimethylol propane in admixture with ethyl glycol ether acetate and methyl ethyl ketone, and (e) from hexanediol polycarbonate or a polyester of adipic acid neopentyl glycol hexanediol and 1,4-butylene glycol and a polyester of adipic acid and butane 1,4-diol.
Patent GB-751390-A (GB)
Title: Arrangement for manually securing in the desired position the transversely shiftablemechanism controlling the change speed gear of a bicycle or the like vehicle
IPC: B62M9/127
Filed: 1954-03-10
Abstract: 751,390. Variable-speed gearing. JUY, L. C. H. March 10, 1954 [May 19, 1953], No. 6986/54. Class 80(2) In change speed gearing for bicycles in which a chain 2 is engaged with any one of a number of wheels 3 by moving a chain-wheel 7 axially, hook means is provided to enable any gear ratio to be engaged if the operating cable 1 should break. The wheel 7 is acted upon by spring pressure opposing the pull in the cable 1. As shown, a hook with a slot 8<SP>1</SP> is formed on a washer 8 fixed between the carrier arm 11 and a striated member 12. If the cable 1 breaks the small chain 4 at the end of the cable is pulled manually and engaged with the hook so that the gear ratio desired is established. The hook may be formed on the arm 11 or member 12 or formed in the end nut 19 or to a member secured thereto. The hook may be adjustable. In a modification the cable end 13, Fig. 12, has spaced projections 14 one of which may engage a fixed slotted hook 22.
Patent GB-151540-A (GB)
Title: Improvements in and relating to inhalers
IPC: A61M15/00
Filed: 1920-03-08
Abstract: 151,540. Perman, P. E. March 8, 1920. Specially - shaped boxes; covers. - A pocket inhaler is made as a box having two exactly similar dishlike parts sliding one on the other. By partially opening the box and applying the nostril at one end, air can be drawn through the box from the other end. Fig. 5 shows the box partly open. Both the top and bottom are formed for half their length with a flange and for the other half with a rolled edge forming a groove, so that they can be slid together as shown.
Patent GB-428436-A (GB)
Title: An improved apparatus for investigating, correcting and developing the power of human vision
IPC: A61H5/00
Filed: 1934-05-10
Abstract: 428,436. Eye - exercising appliances. SIMPKINS, R. G., 13, Holly Road, Edgbaston, Birmingham. May 10, 1934, No. 7094/35. Divided out of 425,474. [Class 81 (ii)] Apparatus for investigating, correcting, and developing the power of human vision comprises a number of telescopic members 1<a>, 1<b>, 1<c>, detachably secured together as by screws 6, and supported by a stem 2, on a stand 3, The member 1<c> carries a focusing disc 5 having a focusing spot 5<a>, and the member 1<a> a chin-rest strap 4 connected by a swivel link 4<b> and having a handle 4<a>. Specification 425,474 is referred to.
Patent GB-1449022-A (GB)
Title: Polyolefin-elastomer compositions
IPC: C09J5/06
Filed: 1973-02-14
Abstract: 1449022 Laminates; seaming non-metallic sheet material EXXON RESEARCH & ENG CO 25 Jan 1974 [14 Feb 1973] 7201/73 Headings B5N and B5K A process for preparing a multi-layer composition comprises applying an intimately mixed blend of a thermoplastic polyolefine and an elastomer to a surface of a cured elastomer and bonding the blend to the surface by heating and the application of pressure. In a preferred embodiment, a layer or film of the blend is applied to the surface of a cured elastomer, e.g. by calendering the film or layer on to the preheated surface of the product, to produce a twolayer product. In a further embodiment, sheets of the cured elastomer are spliced using the process of the invention. The polyolefine may be polyethylene or polypropylene or an olefine copolymer and the elastomer admixed therewith may be butyl rubber, halogenated butyl rubber, polyisobutylene, EPDM, styrene-butadiene rubber, isoprene rubber, natural rubber or nitrile rubber. The cured elastomer may be butyl rubber or EPDM and may be microcellular.
Patent GB-163839-A (GB)
Title: Improvements in vehicles with detachable bodies
IPC: B60P3/42
Filed: 1920-03-10
Abstract: 163,839. Dutton, F. H., and Stronach, R. S. March 10, 1920. Vehicles with removable bodies.-A vehicle chassis carrying a light detachable body suitable for a light railway or road wagon comprises two traverse frames 1, Fig. VI, supporting at their ends four body-bearing plates 5, longitudinal beams 7 connecting the transverse beams, pivotal wheel connections 3 on the transverse beams, and frames 26 extending from the transverse beams and carrying means for securing the body to the chassis. The body 6, Fig. I, has angle side-frame members having downwardly turned flanges 12 and angle end-frame members 13, Fig. V, with upwardly extending flanges 14. Wall planks 22 are riveted to metal supports 17, 18, 19, 20, and tie-rods 23, tying the side walls support the floor beards 24, 'the supports 19, 20 providing slings for removing the body from the chassis. The body bearing plates 5 fit between the flanges 12 of the side members of the body to secure the body laterally to the chassis. Lugs' 16, Figs. I and III, on the body have extensions 28 fitting into V-shaped frames 26 which carry upright lugs 27 slotted to receive wedge bars 29 which finally secure the body to the chassis. Couplings are attached to the frames 26.
Patent GB-179729-A (GB)
Title: Improvements in the weaving of coiled wire fabrics and in machines therefor
IPC: B21F27/04
Filed: 1921-03-07
Abstract: 179,729. Fraser, H. A., and Crighton, P. F. March 7, 1921. Coiling ; shearing-adjuncts. -The upper geared feedroller b for feeding wire to the coiling-die is carried in adjustable bearings e, e' provided with rubber blocks. The lower grooved roller b<1> is driven through a clutch f<3> and gearing f<2> from the main pulley f<4>. The clutch f<3> is put into action by arms g<2> on a lever g, which is held during the feed of one coil by a catch g<7> and disengaged by means of a rack-bar h moved horizontally by a pinion which, bv the descent of a depending finger h<8> on the lever g, is clutched to a worm-wheel h<5> driven by a worm on the shaft f. A bar m<1> acts to guide the running coil t<2> after it leaves the die, the coil being held to the bar by an electromagnet m<5>, and the fabric being held by positioning- rollers i, i<1>, which are fluted or toothed. These rollers are carried in spring-pressed bearings hinged at i' and mounted to slide as a whole in guides j<1> so as to determine the point of entry of the running coil according to the kind of fabric required. This sliding movement is effected by a cam j<2> on a drum mounted on the cam-shaft k, which is driven by worm gear k<2>, k<3> from a pulley k<5>. When the lever g is raised to disengage the feed-roller drive, a friction roller k<5> is brought into contact with both the pulley k<5> and the belt on the pulley f<4>, thus driving the cam-shaft k. The fabric is fed crossways by a cam l<5>, which rocks a pawl arm l<2> and gives a step-by-step rotation to the lower roller i; and the running coil is severed by an arm c<5> actuated by a cam n on the shaft k. After severing the coil and positioning the slide, the cam-shaft k is stopped by a weight released by the action of a cam o so as to pull the lever g down into its lower position again and re-starting the coil feed. The machine is stopped by placing the lever g in an intermediate position, corresponding to the fullline position of the starting-lever q shown in Fig. 5, the catch g' being then also held out of action. The starting-lever is held in the running position by a latch r, which is disengaged electrically to stop the machine if the running coil issues from the die deformed. Fig. 18 shows diagrammatically the arrangement of the cams j<2>, l<5>, n, o for producing a plain single-weave fabric.
Patent GB-766634-A (GB)
Title: Rectifier
Inventor: TUMULO GERALD
IPC: H01L29/00
Filed: 1953-03-17
Abstract: 766,634. Dry plate rectifiers. RADIO RECEPTOR CO., Inc. March 17, 1953, No. 7320/53. Class 37. A dry rectifier comprises a base-plate 11 having a selenium or other semi-conductor layer 15 upon part of which is a counter electrode layer 16. An insulating washer 17 which may be of paper is compressed in assembly to the thickness of the counter-electrode layer 16, and is situated in a space between the layer 16 and the mounting spindle 18. The washer 17 prevents the risk of metal from the counter electrode extending to the base-plate and shorting the semi-conductor layer. The semi-conductor layer 15 extends over a paper washer 13 in the region of the central mounting spindle. Specification 674,503 is referred to.
Patent GB-1300825-A (GB)
Title: Improvements in multi-layer photographic materials
IPC: G03C8/52
Filed: 1970-02-16
Abstract: 1300825 Photographic materials FUJI PHOTO FILM CO LTD 16 Feb 1970 [31 March 1969] 7336/70 Heading G2C A photographic material comprising a support having coated thereon a polymeric layer containing pigment(s) and (i) a silver halide emulsion layer or (ii) an image receiving layer for the silver salt diffusion transfer process, wherein the surface of the support and/or the pigmented layer have been treated with a water-repellent composition or the pigmented layer contains such a composition and the composition is a wax emulsion, paraffin wax or a mixture thereof, a mixture of a wax and an Al or Zr, methylol fatty acid amide, silicone resin or a fluorocarbon. The pigmented layer may be casein or gelatine containing pigments such as clay, oxides of Ti, Zn, Sb, Al or Ti, carbonates of Ba or Ca, chromates of Pb, Ca or Zn, CdS, sulphates of Pb and Ba and zinc or C. The pigmented layer and/or the water-repellant composition may also be coated on the back of the support which is preferably porous paper.
Patent GB-475028-A (GB)
Title: Improvements in radio receivers
IPC: H03G5/20
Filed: 1936-03-11
Abstract: 475,028. Valve circuits for wireless reception. MURPHY RADIO, Ltd., and BAKER, G. B. March 11, 1936, No. 7351. [Class 40 (v)] In a radio receiver in which selective lowfrequency amplification is employed, e.g. for compensating for the attenuation of the higher audio-frequencies by sharply selective radio circuits, the nature of the selective amplification is modified from a distance or in accordance with changes in the selectivity of the receiver or in conditions as regards interference by the use of a pentode valve as a low-frequency amplifier, the anode and screen-grid circuits of this valve differing in the ratio of their resistance to reactance and having a common part and the effective ratio of resistance to reactance of the output circuit being adjusted by varying the potential of the suppressor grid of the valve itself or of an auxiliary pentode acting as a variable reactance. In one arrangement, Fig. 1 (not shown), the junction point of resistance and reactance in the anode circuit of the amplifier is conected to the screen grid and the control voltage is applied to the suppressor grid. This arrangement gives peak, in the amplitude / frequency curve at the same frequency for all control voltages but of different heights. In a modification, Fig. 3, in which the peaks occur at progressively lower frequencies as they are reduced in height the suppressor grid of the amplifier may have a fixed or adjustable voltage and the characteristic of the output circuit is varied by adjusting the suppressor grid voltage of a further pentode 7 connected as a thermionic reactance. In further modifications, Fig. 5 (not shown) and 6, the amplifier valve itself acts as an adjustable reactance in virtue of the circuit 12, 13. As shown in Fig. 6, the control voltage is derived from a low pass filter or a series resonant circuit 14, 15 tuned to (say) 9 k.c. with the aid of a diode rectifier sharing the pentode cathode. and its value thus depends on the interference. The control voltage may alternatively be obtained in the ways described in Specifications 442,685 and 462,832. Specification 448,716 also is referred to.
Patent GB-198800-A (GB)
Title: Improvements in electric furnaces
IPC: F24C7/08
Filed: 1922-03-13
Abstract: 198,800. Wild, L. W., and Barfield, E. P. March 13, 1922. Resistance furnaces and ovens. - In electric furnaces of the kind comprising a refractory cylindrical or other vessel formed with helical grooves to receive the heating wire and enclosed by a second vessel which maintains the wire in the grooves, the enclosing vessel is made in sections or bars. The cylindrical heating vessel a. Fig. 2, has an external groove b in which is wound the wire c, the enclosing vessel comprising three sections d. In the modification shown in Fig. 3 the enclosing means comprises a number of bars e. In both forms the external parts are held in place by a binding of metal or other suitable means. According to the Provisional Specification the enclosing vessel may be in one piece.
Patent GB-288172-A (GB)
Title: Trigger device for machine guns placed on flying machines and actuated by the flying-machine engine
IPC: F41A19/05
Filed: 1928-03-09
Abstract: 288,172. Aktieselskabet Dansk Rekylriffel Syndikat. April 2, 1927, [Convention date]. Machine guns.-Relates to machine guns fired synchronously between the propeller blades of an aircraft, and consists in the arrangement of a cam a driven round by suitable gearing from the propeller shaft and periodically operating the trigger p of a gun adapted for single-shot firing. The trigger p is controlled by a spring q and fitted with a roller r to bear on the cam s. This cam is driven round by shaft f, and a shaft g connected by a pin h to a shaft c coupled through a joint b and a shaft a to the propeller shaft. The shafts c, f, g are mounted in a casing e on the trigger guard d; and a worm gear k, m is provided between the shafts f, g to adjust the angular position of the cam s.
Patent GB-765635-A (GB)
Title: A pipe anchoring for well tools
IPC: E21B33/04
Filed: 1955-03-14
Abstract: 765,635. Well tools. BUTLER, G. A. March 14, 1955 [May 14, 1954], No. 7394/55. Class 85. An anchoring device for well tools includes a a slip having a front portion provided with pipe gripping teeth and a tapered back surface which contacts a tapered surface of a support or expander, the two tapered surfaces being modified so that the coefficient of friction between them increases sharply as the normal force therebetween increases to a predetermined value. This prevents collapsing or bursting of the pipe being gripped. The methods of obtaining this increase in friction are : (a) Biting or digging of a roughened or toothed harder surface 67, Fig. 2B, of a slip 61 into the softer smooth surface of a hanger 60, or vice versa. (b) Galling of smooth surfaces which may be of equal hardness and softer than the pipe gripping teeth, the contact area of the support surface being less than that of the back of the slip. (c) Locking of two softer surfaces 100, 103, Fig. 14, by harder particles 108 (e.g. tungsten carbide) or ball bearings therebetween. (d) Forming teeth or projections on both tapered surfaces 103, 100, Fig. 17.  These methods are described as used in a casing head for suspending tubing, an overshot for fishing, a spear for fishing, and a permanent well packer. A set of four slips may be formed from a tapered cylindrical sleeve, threaded internally and/or externally to form teeth and then cut into quadrant with a locating pin placed between each pair.