baber/WOPTO huggingface dataset:
Patent GB-1316777-A (GB)
Title: Method and apparatus for producing synthetic torque yarns and yarn product
IPC: D02G1/02
Filed: 1970-06-16
Abstract: 1316777 Textured yarn TURBO MACHINE CO 16 June 1970 [3 Nov 1969] 28991/70 Heading D1F A continuously textured heat-settable synthetic thermoplastic yarn is made by continuously twisting the yarn, heat setting while in a twisted condition, continuously cooling, and thereafter continuously drawing the cooled yarn at a temperature below the heat-setting temperature. In a preferred embodiment, two yarns 12, 13 are pretwisted at 14 and passed via twist stopping means B to a heater 30. The heat-set twisted yarns are then passed through a cooling zone C to a separation means S. The separated yarns are then drawn between rolls 65 and 95 and wound on a package 73 or 74. Alternatively, the two yarns may be helically twisted by means of a false twist spindle 121 downstream of the heater 30. The cold drawing step produces a reduction in bulk in the yarn and prevents snarling of the yarn. The cold drawn yarn is preferably made up into a fabric and relaxed in the presence of moisture to recover the bulk. Adjustable yarn tensioning means e.g. adjustably mounted friction pins, are preferably provided between the cooling zone C and the draw rolls 65, 95 to control the percentage elongation of the yarns in the draw zone, preferably to 3-20%.
Patent GB-619901-A (GB)
Title: Improvements in windows and window frames
IPC: E06B3/10
Filed: 1946-10-01
Abstract: 619,901. Windows. MATHER, D. S. Oct. 1, 1946, No. 29187. [Class 20(iii)] The contacting surfaces between fixed and moving parts of a window and its frame are made of metal, the remaining portions of the sash and stationary frames being made of wood or other non- metallic material. Fig. 5 shows a wooden casement 15 and stationary frame 5 each provided with right-angled Z metal strips 21, 28 forming facings for the rebates x.
Patent GB-160500-A (GB)
Title: Improvements in and relating to automatic screw machines
IPC: B23G7/00
Filed: 1919-11-24
Abstract: 160,500. Tipson, W. G. Nov. 24, 1919. Cams and tappets.- A cam drum for an automatic lathe has a number oi circumferential T slots 2 and the cam strips 4 are provided with tenons and are adjustably secured to the drum by bolts, the nuts for which are passed into position through a slot 3 in the inner face of the drum cutting through the bottom of the T slots.
Patent GB-897921-A (GB)
Title: Improvements in or relating to modulators or frequency changers for use at super-high frequencies
Inventor: WRAY DONALD
IPC: H03D7/14
Filed: 1957-09-19
Abstract: 897,921. Frequency changers; amplitude modulating systems. POSTMASTER-GENERAL. Sept. 11, 1958 [Sept. 19, 1957], No. 29554/57. Classes 40(5) and 40(6). [Also in Group XL(b)] A modulator or frequency changer comprises a hybrid junction having an input signal arm, an output arm and a modulating arm connected at both ends to the junction, the modulating signal being applied to a variable admittance device located in the modulating arm such the difference in the distances to the ends of the arm is a quarter wavelength or an odd integral number of quarter wavelengths at the signal frequency. In the frequency changer shown in Fig. 2, the co-linear arms of a waveguide "magic T" are joined by means of a loop and the non-linear element is positioned so that by adjusting a phase adjuster 12 the distance to the junction along the two paths around loop differ by a quarter wavelength. In Fig. 4 (not shown) a directional coupler replaces the "magic T" while in Fig. 6 a micro-strip guide of the single or sandwich type is used, the mixer or modulator element 42 being positioned in a loop 41 so that the path AC is a quarter of a wavelength longer than the path AB. In some cases it is possible to join B and C by a direct path instead of by the loop (Fig. 7, not shown). The non-linear modulating element may be a crystal, a thermionic valve, a gas discharge tube or a ferrite slab. In Fig. 3 the modulator crystal is mounted in an adjustable stub on the side of a waveguide and the modulating signal is applied to a cross-bar 13 through an insulator 14 acting as a choke for waveguide frequencies. A second crystal could be mounted in a further stub on the opposite side of the guide, the crystals being connected in parallel or pushpull. Fig. 9 shows the crystal 42 mounted in an adjustable stub connected to the I.F. input line 48 feeding the strip line system 30. It is also suggested that the crystal could be connected in series with the I.F. input line (Fig. 8, not shown). Specification 682,652 is referred to.
Patent GB-1370857-A (GB)
Title: Colouring aluminium
IPC: C25D11/22
Filed: 1972-06-23
Abstract: 1370857 Colouring anodized aluminium by electro-deposition CEGEDUR SOC DE TRANSFORMATION DE L'ALUMINIUM PECHINEY 23 June 1972 [25 June 1971 10 Sept 1971] 29557/72 Heading C7B Pre-anodized Al or Al alloy e.g. Al-Mg-Si is coloured bronze to black by cathodically depositing a heavy metal, e.g. Ni, Co, Cu, Ag, Pb or Sn, or compound thereof into the pores of the oxide layer from an aqueous solution containing a heavy metal sulphamate, e.g. 0À2 to 1À6 mol/l Ni sulphamate (PH adjusted to 3À5- 5À6,) or 0À01 to 0À1 mol/l Pb or Sn sulphamate or 0À002 to 0À01 mol/l Ag sulphamate (pH adjusted to 1-1À5 with sulphamic acid), with 25 to 50 g/l boric acid as buffer. #-naphthol may be added to the Sn sulphamate bath. All forms of one-way current can be used: rectified, non- filtered or periodically interrupted current (with the Al being discharged by short-circuiting with the anode). Pre-anodizing may be effected in H 2 SO 4  with D.C.
Patent GB-809899-A (GB)
Title: Improvements in suction cleaner filter bags
IPC: A47L9/12
Filed: 1957-09-23
Abstract: 809,899. Suction cleaner filters. VAN DER HEEM N. V. Sept. 23, 1957 [Nov. 7, 1956], No. 29783/57. Class 8(2). A porous paper filter bag suitable for use within the casing of a cylinder-type section cleaner comprises spaced inner and outer jackets 8, 7 between which dust is collected ; one end of the outer jacket 7 having an aperture 10 in sealing engagement with the suction inlet 5 of the cleaner and the other end of jacket 8 being secured to the corresponding end of jacket 7. The air permiability of the outer jacket is less than that of the inner jacket whereby the former remains against the casing wall. An inner fabric filter bag 4 is supported on a framework and the jackets of the paper bag may be pleated.
Patent GB-617577-A (GB)
Title: Improvements in or relating to electric cables
IPC: H01B7/22
Filed: 1946-10-07
Abstract: 617,577. Electric cables. TELEGRAPH CONSTRUCTION & MAINTENANCE CO., Ltd., MILDNER, R. C., and BARNES, A. A. W. Oct. 7, 1946, No. 29926. [Class 36] An electric cable of substantially flat crosssection comprises a plurality of conductors A embedded in insulation B and enclosed in a metallic sheath formed of tapes T1, T2, the tapes being joined by seams extending along the major cross-sectional axis. The sheath D may be crimped transversely to give added flexibility.
Patent GB-1426394-A (GB)
Title: Artists palette
IPC: B44D3/02
Filed: 1973-06-25
Abstract: 1426394 Artist's pallettes A ISRAEL 25 June 1973 [26 June 1972] 30013/73 Heading B6P An artist's pallette comprises a flat base 12, a liquid retentive pad 30, a liquid permeable cover sheet 38 over the pad 30 and a pigment container 20 mounted on the base 12. The pad 30 may be of foam rubber or felt and the sheet 38 of paper. The base 12 may have turned up edges 14 and an overhanging portion 16 which receives a plurality of pigment containers 20. The cover sheet extends over the overhanging portion 16, with cut out portions for the pigment containers.
Patent GB-930554-A (GB)
Title: Process for fabricating screens
IPC: B01D29/11
Filed: 1960-08-31
Abstract: 930,554. Metallic fabrics. EDWARD E. JOHNSON Inc. Aug. 31, 1960 [Feb. 12, 1960], No. 30040/60. Class 74 (2). [Also in Group XXII] In making a screen a substantially cylindrical inner unit is rotated about its axis and advanced longitudinally, a thin continuous strip is fed and longitudinally extending portions thereof are bent to form a wire and the wire is secured to the exterior of the inner unit by continuously electric welding without interrupting the feeding and forming of the wire. In making a well screen a strip 8 fed from a coil 9 is formed by rolls 11, 12, to channel sections 14, 15, Fig. 2, and finally by rolls 13 to triangular section wire 16 and the wire is then fed on to a rotating cylinder formed by rods 5, the wire being welded to the rods by an electrode roller 7. The limbs of the section may be spaced apart or the strip may be shaped to pointed U-section, the base of which is welded to the inner cylinder. The strip may be of stainless steel, bronze or brass and the tubular wire may have a core of polyester resin, asbestos or jute. The inner cylinder may be a foraminous tube. The wire section may be such as to provide a slot of U-section widening outwardly.
Patent GB-781540-A (GB)
Title: Machine tools
IPC: B24B5/35
Filed: 1955-10-20
Abstract: 781,540. Grinding. KOPCZYNSKI, J. F. Oct. 20, 1955, No. 30050/55. Class 60. A workpiece 32 to be ground is centered and held between two wheels 18, 20 on a support 1 and a third wheel 28 mounted on a member 6 movable towards and away from the other two wheels, and is carried by a holder 48 which is connected by a flexible drive with a shaft 41 adapted to be stepped through measured increments of rotation corresponding to the desired indexing movements of the workpiece. The wheels 18, 20 are carried on shafts which are rotatably mounted one above the other in sealed passages in the support 1. The wheel 28 is similarly mounted on the member 6 which is slidable to and from the support 1 on two pins 2 projecting horizontally from the latter and is urged by springs 14 located between it and an adjustably-mounted bridge 3 so that the workpiece is gripped and centered between the three wheels ; a lever 11 on a pin 7 projecting from the member 6 through the bridge 3 has a cam face 13 whereby the member 6 may be moved to and from the support. A peripheral groove is provided in each of the wheels 18, 20 and the width of the third wheel 28 is less than the width of these grooves. The support is provided with an opening 34 for the reception of the work-holder 48 and at the rear of the opening is fitted with a bridge 35 in the rear limb of which is rotatably mounted the shaft 41. A collar 42 which is adjustably fixed over the inner end of the shaft 41 is connected by a universal joint 44 to a shaft 45 connected at its opposite end through a universal joint 46 to a collar 47 adjustably fixed to the workholder 48 ; the shank of the workpiece is received in a socket of the workholder and is held therein by slitting the wall of the socket and providing a transverse screw 52. An arm 56 is keyed on the outer end of the shaft 41 and at its outer end is fitted with a spring-urged pin 63 adapted to engage any one of a circular series of tapered bushes 59 secured in apertures in the outer limb of the bridge 35. The flat side faces of workpieces of different cross-sections can be ground by suitably indexing the arm 56 between the grinding operations on successive flat faces, the pin 63 being withdrawn to permit the necessary rotation of the arm.
Patent GB-986893-A (GB)
Title: Organic phosphate compositions
IPC: C09D129/08
Filed: 1961-08-21
Abstract: Film-forming compositions are prepared by mixing one mole of phosphorus pentoxide with 0.2 to 12.5 moles of a styrene/allyl alcohol copolymer and 0.3 to 5.0 moles of an alkyl phenol, and heating the mixture at 75 DEG  to 150 DEG  C.  The copolymer may be a copolymer of allyl alcohol with styrene or a substituted styrene, e.g. chlorostyrene or methylstyrene, of molecular weight 750 to 1500. Preferred phenols contain 1 to 10 carbon atoms in the alkyl group. The compositions may be dissolved in organic solvents, e.g. alcohols, ethers, ketones and aromatic hydrocarbons, and applied to brass, copper, aluminium and ferrous metals to provide corrosion resistant prime coatings.  Examples describe the reaction of phosphorus pentoxide, a styrene/allyl alcohol copolymer and amyl phenol, heptyl phenol, cresol, polyisobutyl phenol/cresol mixtures, nonyl phenol and polyisobutyl phenol, the polyisobutyl groups being derived from polyisobutylene of molecular weight about 350.ALSO:Metal substrates may be primed and protected from corrosion by applying thereto by spraying, brushing or dipping, solutions of products prepared by mixing 1 mole of phosphorus pentoxide, 0,2-12,5 moles of a copolymer of allyl alcohol with styrene or a substituted styrene and 0,3-5,0 moles of an alkyl phenol, and heating the mixture at 75-150  DEG C. Preferred phenols contain 1-10 carbon atoms in the alkyl groups.  The products may be dissolved in alcohols, ethers, ketones and aromatic hydrocarbons and applied to ferrous metals, galvanized iron, brass, copper and aluminium followed by evaporation of the solvent at normal or elevated temperatures.  Examples describe the coating of brass, copper, galvanized iron and steel panels with solutions of the products prepared from copolymers of allyl alcohol and styrene, phosphorus pentoxide and amyl phenol, heptyl phenol, cresol, polyisobutyl phenol/cresol mixtures, nonyl phenol and polyisobutyl phenol, the polyisobutyl group being derived from polyisobutylene of molecular weight 350.  The treated metals may be painted with alkyd enamels.
Patent GB-603328-A (GB)
Title: Improvements in and relating to radio direction-finding systems, particularly for use at high-frequency
IPC: G01S3/06
Filed: 1945-11-12
Abstract: 603,328. Radio direction-finding. REDGMENT, P. G., STRUSZYNSK1. W., WALDEN, S. DE, and WRIGRT. C. S. Nov. 12, 1945, No. 30121. [Class 40 (vii)] The invention relates to means for testing the D.F. accuracy of direction-finders comprising two perpendicular directional aerial systems with a symmetrically located vertical sense aerial and is described as applied to an H.F. crossed loop or Adcock goniometer system mounted on board ship with the sense aerial mounted on a mast as disclosed in Specification 601,096. According to the invention, an auxiliary test loop is mounted with its diametrical axis coaxial with the sense aerial and with its plane inclined at 45 degrees to the two directional aerials and means are provided for applying a test source of R.F. oscillations to the auxiliary test loop and sense aerial. In Fig. 1, the sense aerial 4 is connected to the primary winding 5 of a screened transformer 6 through a phasing resistor 7, the other terminal of the primary winding being connected through a second phasing resistor 8 to a counterpoise 9 which is coupled to a supporting mast through a variable capacitor 10 as disclosed in the Specification referred to. The test signal is applied through a flexible cable 3 to an unscreened auxiliary loop 1 in series with an injection resistor 2 which is also connected in parallel with the primary of the sense aerial transformer. In order to balance out leakage of the test signal through the capacitative admittance 13 between the sense aerial 4 and the combined counterpoise and mast head, a compensating resistor 14 is connected across the loop 1 having a value r=L/GR, where L is the inductance of the loop, G is the value of the capacitance 13 and R is the value of the injection resistor 2. The shunt injection circuit described short circuits the sense aerial during normal D.F. operation and in order to avoid this, the injection resistor 2 is connected in series with the sense aerial, Fig. 3c, and also in series with the loop through the two symmetrical secondary windings of the screened transformer 15 which is provided to isolate the loop from the test signal generator during D.F. operation. The injection loop in this case is screened to ensure pure magnetic coupling and in order to balance out the effect of the capacitance c of the loop, Fig. 3a (not shown), and to obtain a nearly constant capacitative admittance to the supporting mast, compensating inductors 16 and 17 of equivalent value l and a variable capacitor 18 of value k are inserted as shown which together with the quantities r, R and L previously referred to form a balanced bridge, Fig. 3b (not shown), when r=L/kR and lk=LC. A 200 # damping resistance 19 is also connected across the injection cable 3 to provide a more uniform injection voltage over the entire frequency band and to reduce the reaction on the injection circuit.
Patent GB-141298-A (GB)
Title: Improvements in or relating to yokes or clamps for use in gun mountings for aircraft
IPC: F41A23/00
Filed: 1916-05-10
Abstract: 141,298. Allen, R. May 10, 1916. Machine guns.-Relates to yokes or ring clamps of the kind adapted to carry a gun and provided with a pillar intended to fit a socket in a bracket on an aircraft. According to the invention, the yoke is made in three parts, two of which, u<1>, u, are connected to the third u<2> by a hinge u<3> and a shackle u<4> respectively, and are extended and spaced apart at the lower end to embrace the upper end of the pillar v. These segments are fastened to the pillar by a pivot v<1> and a cone clutch w, w<1> controlled by a lever cam or nut v<2>. The hinge links u<3> between the segments u<1>, u<2> may be recessed as shown in Fig. 12 in order to fit over the ends of the curled ends u<5>, u<6> of the segments to relieve the hinge pins passing through these curled ends from stress. The shackle u<4> may be tightened by a screw u<7>, a screw and nut, or a cam-lever.
Patent GB-948749-A (GB)
Title: Improvements in the production of paper
Inventor: STEFAN BRUNO
IPC: D21H23/00
Filed: 1960-09-01
Abstract: Paper containing a proportion of man-made fibres is made by forming an aqueous suspension which contains the man-made fibres and an amineformaldehyde precondensate, forming a web from the suspension, drying it, impregnating the dried web with an aqueous-alcoholic solution containing a linear copolyamide of high molecular weight, and drying the impregnated sheet.  The fibres may be of polyhexamethyleneadifamide or viscose rayon, and these may be mixed with one another or with natural cellulose fibres. The precondensate may be a cation-active trimethylolmelamine.  The suspension may also contain a salt of a polyvalent metal, e.g. aluminium sulphate.  The impregnating solution may also contain a cross-linking agent such as 1 : 6-hexamethylene-N : N1-bis-(ethyleneurea) or a formaldehyde donor, and/or a hydrophobilising agent such as octadecylethyleneurea. It may also contain a salt that develops acid properties at higher temperatures, e.g. aluminium nitrate or zinc nitrate.  The impregnated web may also be hot-calendered, embossed or pleated. The product is ink-fast, has a high wet-strength, and is stable to dilute acids, alkalis and organic solvents such as benzene, alcohol and trichlorethylene.  Specifications 874,249, 948,750, and German Specification 800,740 are referred to.
Patent GB-714827-A (GB)
Title: Improvements in or relating to very high frequency valve and wave guide installations
Inventor: WILLWACHER DIPL-ING ERWIN
IPC: H03D9/06
Filed: 1952-11-28
Abstract: 714,827. Waveguides. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Nov. 28, 1952 [Dec. 4, 1951], No. 30263/52. Class 40 (8) A valve is coupled to a wave guide H2 by building it in with its axis transverse to the direction of propagation of the wave in the guide, the lead out of an electrode of the valve being surrounded by and coupled to a member S extending longitudinally of the guide and loading it capacitatively. In the arrangement shown the valve passes through an aperture in a member S, a disc electrode of the valve being coupled to the member. The valves shown are provided with input couplings from a guide and output couplings to a guide of the kind described. Tuning screws B1, B2, and B3 may be provided and also a sliding tuning member Sch.
Patent GB-359192-A (GB)
Title: Improvements in typewriting machines
IPC: B41J29/56
Filed: 1930-10-11
Abstract: 359,192. Typewriters. ROYAL TYPEWRITER CO., Inc., 2, Park Avenue, New York, U.S.A.-(Assignees of Handley, G. F. ; 7030, 83rd Street, Glendale, New York, U.S.A.) Oct. 11, 1930, No. 30477. Convention date, Nov. 1, 1929. [Class 100 (iv).] Paper-carriages; shift-key actions; key locks.-A carriage-centring stop is movable into the path of the carriage and is adapted to release the shift-key lock without permitting the shift mechanism to return to normal position. The machine shown in the Figure includes, as described in Specification 247,512, [Class 100 (iv), Typewriters &c.], a carriage C mounted on a rocking shift-frame B which is connected by a link 14 to a shift-key lever 16 provided with a locking-key 23 and an arm 21 for locking the shift frame in shift and normal position respectively. A centring-stop 38 pivoted on the left-hand side plate A is formed with lugs 43, 46 for engaging the carriage and a lug 22 on the arm 21 respectively. To centre the carriage, the stop is moved forwards, in opposition to a spring 41, by means of a finger 44 and the carriage is released and permitted to run into engagement with the lug 43, the carriage-spring holding the parts in engagement. If the carriage has been shifted, the lug 46 raises slightly the arm 21 and thereby permits a spring 26 to release the shiftlock key 23, the shift frame remaining in displaced position. To release the stop and permit return of the shift frame, the carriage is moved slightly, this movement being preferably effected during application of the cover of the machine by causing the cover to press inwards the line-spacing lever.
Patent GB-1211391-A (GB)
Title: Improvements in direct production of metal carbides and metals from ores
IPC: C01B31/30
Filed: 1968-06-26
Abstract: 1,211,391. Carbides of tungsten, tantalum and niobium. GENERAL ELECTRIC CO. 26 June, 1968 [7 Aug., 1967], No. 30501/68. Heading C1A. [Also in Division C7] Carbides of W, Ta or Nb are made by heating a mixture containing silica, carbon and calcium tungstate, tantalate or niobate to a temperature of 800-1600 C. The reaction mass is cooled and the dicalcium silicate slag is separated from the metal carbide. The mixture may be made up stoichiometrically although it is preferred that up to 20% excess of carbon should be present, e.g. as coke or charcoal.
Patent GB-872872-A (GB)
Title: Improvements in or relating to compositions for use in the manufacture of golf ball covers
IPC: C08L21/00
Filed: 1957-09-30
Abstract: A composition which may be readily moulded to form golf ball covers comprises a low molecular weight polyethylene of m.p. 206 DEG F. to 215 DEG F., one or more of natural rubber, synthetic rubber, e.g. butyl rubber, and high styrenebutadiene resin, hydrated alumina, titanium dioxide, and balata or gutta percha.  The composition, which may include zinc oxide, sulphur, accelerator, antioxidant, and sunproofing material, may additionally comprise 95%-50% of high molecular weight polyethylene of m.p. 225 DEG -400 DEG F. blended with ,5%-50% of the low molecular weight polyethylene. In compounding the composition a master batch is formed which is equal in weight to the weight of balata or gutta percha used and which may comprise natural or synthetic rubber, together with polyethylene and/or high styrene butadiene resin; e.g. 20%-80% rubber with 80%-20% styrenebutadiene; alternatively the master batch may consist entirely of the blended high molecular and low p  molecular weight polyethylenes, in the preferred ratio of 7 : 3, in which case the amount of polyethylene may be up to 100% by weight of the balata or gutta percha.  Specifications 816,634, 847,493 and U.S.A. Specification 2,722,264 are referred to.