baber/WOPTO huggingface dataset:
Patent GB-1182563-A (GB)
Title: Control Devices for Sewing Units
IPC: D05B69/22
Filed: 1968-04-18
Abstract: 1,182,563. Sewing-machines. SINGER CO. 18 April, 1968 [1 May, 1967], No. 18354/68. Heading D1G. In a lockstitch sewing machine having high and low speed drives, the needle is positioned in the up or down position by the low speed drive and auxiliary devices such as thread cutters are operated only on the correct and appropriate position of the needle. The machine is normally driven at high speed by the motor 24 controlled by a treadle 40. If the treadle pressure is removed a clutch 30 engages the low speed drive to move the needle to a standstill in the down position which position is detected and the low speed motor drive disengaged by a commutator. Pressure on the treadle 40 again starts the machine at high speed or pressure on the pedal 46 starts the machine at low speed. To operate yarn catching and severing devices a pedal 48 is pressed in the needle down position. At this needle down position the yarn catching finger operates last only after a time delay, determined by electrical circuitry, ensures the machine has stopped. The machine is then moved by the low speed drive to a needle up position when the yarn severer operates and also a needle thread wiper 71, 72. The machine is mounted on a stand and the electrical control circuits are formed as printed circuits which may be plugged in by a multisocket connection so that if the type of machine on the stand is changed then the control circuits may be replaced by ones necessary for the new type of machine.
Patent GB-467302-A (GB)
Title: Improved construction of wing or controlling surface for aircraft
IPC: B64C3/00
Filed: 1936-07-02
Abstract: 467,302. Aircraft wings. MICHAELIS, K. July 2, 1936, No. 18368. Convention date, June 9, 1936. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 12, 1937.] [Class 4] A wing or controlling surface, e.g. aileron, rudder for aircraft comprises outer and inner shells 1, 2 of plywood bent to streamline section and having therebetween a sheet 3 of corrugated plywood also bent to streamline section and secured to the shells by glueing, riveting, &c. The wing thus comprises an unobstructed space adapted for the accommodation of fuel, machinery or load. According to the Specification as open to inspection under Sect. 91, the outer shell may comprise several sheets, of which one forms the head portion and the others the rear part ; the inner shell may similarly comprise several sheets. This subject-matter does not appear in the Specification as accepted.
Patent GB-997943-A (GB)
Title: Fluid curtains for protecting or shielding a body
Inventor: COCKERELL CHRISTOPHER SYDNEY
IPC: B64C23/00
Filed: 1961-05-19
Abstract: 997,943. Forming fluid curtains on moving bodies. HOVERCRAFT DEVELOPMENT Ltd. May 16, 1962 [May 19, 1961], No. 18401/61. Heading F2R. [Also in Division B7] A body, e.g. an aircraft wing, designed to move relative to a fluid medium has a tapered after part, and means, e.g. parts 2, 12 and a deflector 4, for ejecting a first curtain 5 of fluid, e.g. air or gas-turbine engine exhaust gases, from a position forward of the tapered part, and a second curtain 13 from a position adjacent the rear end of the tapered part, the fluid being ejected at substantial angles to the body, so that the two curtains meet adjacent the rearward end to form and contain a region 6 of above ambient pressure in contact with the tapered part. Vortices 7 are set up. In the case of bodies moving in water, the curtains may be of water, air, or other gas, or a mixture thereof.
Patent GB-146426-A (GB)
Title: Sheet feeding machines
IPC: B65H5/36
Filed: 1920-07-03
Abstract: 146,426. Christophel, C. E. March 12, 1918, [Convention date]. Stopping-arrangements.-In a machine for feeding sheets to printing, folding, or other machines, a feeler finger which acts to stop the machine on failure of the feed is provided. The feeler finger 82 is pivoted to an arm 80 fixed to a shaft 79 which is normally rocked by an arm 85 carrying a roller 86 engaging an oscillating cam 5 on the shaft 6. An arm 78 on the shaft 79 carries a pin 77 supporting a bar 71 which is connected through linkage 73, 76 to stopping gear. As the shaft 79 is rocked a projection 70 on the bar 71 is alternately moved into and out of the path of a lug 69 adjustably secured to the cam 5; but if the sheet supply fails, the feeler 82 falls into a hole 83 in a plate 84 preventing the roller 86 from following the cam depression 87, so that the bar 71 is moved longitudinally by the lug 69 to stop the machine.
Patent GB-1078996-A (GB)
Title: Photographic cameras
Inventor: TRANKNER WERNER
IPC: G03B7/099
Filed: 1965-05-03
Abstract: 1,078,996. View-finder systems; view-finders. PENTACON DRESDEN KAMERA-UND KINOWERKE VEB. May 3, 1965, No. 18507/65. Headings G2A and G2J. In a reflex mirror view-finder system for a photographic camera having an internal photoelectric light measuring element 6, a diaphragm 10 is fixed around, or is detachable from, the eyepiece mount 9 so as to prevent extraneous light penetrating to the element 6 by way of the eyepiece lens 8, there being an airgap a between the diaphragm aperture 11 and the last lens surface 8' of the lens 8. Light reaches the lens 8 from the objective 2 by way of a reflex mirror 3, a lens 4, a beam dividing prism 5 and a roof-edged pentaprism 7.
Patent GB-663079-A (GB)
Title: Acetone resin modified phenol resins
IPC: C08L61/06
Filed: 1948-07-09
Abstract: Resinous compositions are made by forming water-soluble resins by partially dehydrating the mixtures resulting from (a) the reaction of phenol and formaldehyde using a caustic alkali catalyst, and (b) the reaction of acetone (1 mol.) and formaldehyde (1 to 6 mols.) using an organic amine catalyst, and mixing the resins to form a composition containing 25 to 75 per cent by weight of either resin.  In the example, phenol and formalin are condensed in the presence of caustic soda and under reduced pressure, the reaction mixture being neutralized with phosphoric acid after cooling and dehydrated by distillation, while a mixture of acetone, formalin and the low molecular weight reaction product of a previous batch is condensed in the presence of aqueous dimethylamine, the reaction mixture being partially dehydrated by distillation.  In the bonding of glass wool, equal parts of the constituent resins are added to a mineral oil in water emulsion and sprayed on to a mat of glass wool, the mat being subsequently baked at 200 DEG  C.  Hardening of the mixtures may be accelerated by conventional heat-hardening agents.
Patent GB-600284-A (GB)
Title: Electric pulse generating systems
IPC: H03K5/07
Filed: 1945-07-19
Abstract: 600,284. Valve and pulse generating circuits. STANDARD TELEPHONES & CABLES, Ltd. July 19, 1945, No. 18569. Convention date, Nov. 23, 1943. [Class 40 (vi)] A circuit for producing a wave having a constant amplitude characteristic within a wide band of frequencies comprises means for producing an " edger " pulse having leading and trailing edges in which one of the edges is vertical and the other curved, the pulse being applied to shock-excite a damped resonant circuit. As the tuning of the resonant circuit is varied, a pulse of variable width may be produced. The input waveform is fed through a squaring circuit to produce a pulse 56, Fig. 7, which after differentiation by circuit 60 is applied as a short positive pulse 61. to the grid of valve 82, biassed beyond cut-off. Condenser 84 after discharging through valve 82, charges exponentially to produce the " edger " pulse 63 which is applied to shock-excite the tuned circuit 66 to produce a damped train of sine waves. By employing a diode 72, the first negative half-cycle is fed to a pulse-shaping circuit while the succeeding positive half-cycle is suppressed. In a modification, Fig. 8, the pulse 190 or 200, Fig. 9, is applied, without differentiation, to the valve 182 which may operate with zero bias or biassed beyond cutoff. The corresponding output waveforms 191 or 203 have vertical trailing or leading edges respectively, the inductor 186 having the effect of rounding the curved edge of the waveform.
Patent GB-1130528-A (GB)
Title: Polyurethane/phenoxy resin compositions
IPC: C08L71/00
Filed: 1966-04-28
Abstract: 1,130,528. Coating surfaces. B. F. GOODRICH CO. 28 April, 1966 [29 April, 1965], No. 18574/66. Headings B2E and B2K. [Also in Division C3] Metals and fabrics may be coated with a composition, suitably in a solvent such as dimethyl formamide, dioxane, cyclohexanone, tetrahydrofuran and methyl ethyl ketone, of (I) 100 parts by weight of a thermoplastic polyurethane which is (A) a polyesterurethane derived from (a) 1 mol of a linear hydroxyl terminated polyester of (i) an aliphatic glycol having 2 to 10 carbon atoms and the hydroxyl groups on the terminal carbon atoms, and (ii) a dicarboxylic acid of the formula HOOCR-COOH where R is an alkylene radical of 2 to 8 carbon atoms, or an anhydride thereof, the polyester having a M.W. of 600 to 2000, (b) 1.3 to 3 mols of an aromatic diisocyanate and (c) 0.3 to 2 mols of an aliphatic glycol having 2 to 6 carbon atoms and the hydroxyl groups on the terminal carbon atoms, the molar amount of (a) and (c) combined being essentially equivalent to the molar amount of (b), or (B) a polyetherurethane derived from (1) one mol of a compound of the formula HO-[(CH 2 ) n O] x -H wherein n is 3 to 6 X is greater than 7 and the M.W. is 500 to 4,000, (2) 1.5 to 3 mols of an aromatic diisocyanate and (3) 0.5 to 2 mols of an aliphatic glycol having 2 to 6 carbon atoms and the hydroxyl groups on the terminal carbon atoms, the molar amounts of (1) and (3) combined being essentially equivalent to the molar amount of (2), and (II) from 2 to 100 parts by weight of a thermoplastic polymer derived from bisphenol A and epichlorohydrin and having a M.W. of 20,000 to 40,000. The compositions may be applied to the metals or fabrics by spraying dipping, knife or roller coating.
Patent GB-240968-A (GB)
Title: The manufacture of 4-amino-3-oxybenzene-1-arsinic acids
IPC: C07F9/74
Filed: 1924-08-06
Abstract: 4-amino-3-oxybenzene-1-arsinic acid is prepared by heating 2 : 1-benzoxazolone-4-arsinic acid with an alkali.  The homologues and substitution products of the benzoxazolone-4-arsinic acid may be transformed into the corresponding aminooxyarsinic acids in the same way.  According to the examples (1) benzoxazolone-4-arsinic acid is boiled with 3 N-caustic soda and the cooled solution acidified with hydrochloric acid, when 4-amino-3-oxybenzene-1-arsinic acid separates out; (2) in the same way 4-amino-3-oxy-6-methylbenzene-1-arsinic acid is obtained from 5-methylbenzoxazolone-4-arsinic acid and 4-amino-3-oxy-6-chlorbenzene-1-arsinic acid from 5-chlorbenzoxazolone-4-arsinic acid. Amino-3-oxy-6-methylbenzene-1-arsinic acid when diazotized and coupled with resorcinol yields a violet red dyestuff, whilst 4-amino-3-oxy-6-chlorbenzene-1-arsinic acid under the same condition gives a red dyestuff.  Specification 240,969 is referred to.
Patent GB-1333906-A (GB)
Title: Pharmaceutical compositions
IPC: A61K31/555
Filed: 1972-04-24
Abstract: 1333906 Pharmaceutical compositions containing copper myxin F HOFFMANN-LA ROCHE & CO AG 24 April 1972 [23 April 1971] 18837/72 Heading ASB Pharmaceutical compositions having antimicrobial activity for the treatment of otic and ophthalmic infections comprise an aqueous suspension of the anti-biotic copper myxin (the cupric complex of 6-methoxy-1- phenazinol 5, 10-dioxide), a thickening agent and a humectant. The thickening agent may be cellulose, carboxymethylcellulose or a water-soluble polymer such as polyvinylpyrolidone, poly-N-vinyl oxazolidinones and block copolymers of polyoxyethylene and propylene and the humectant may be a 1,2-glycol of the formula RCHOHCFLOH in which R represents a C 1-5  alkyl group such as propylene glycol. The compositions may also contain as a stabilizer-buffer a 2 to 20% molar excess of copperions over the total copper present in the copper myxin, provided by copper acetate.
Patent GB-1218116-A (GB)
Title: Expanding hollow metal cylinders in the cold state by means of explosive substances
IPC: B21D26/08
Filed: 1968-04-22
Abstract: 1,218,116. Explosive forming. BOHLER & CO. A.G. GEB. 22 April, 1968 [21 April, 1967], No. 18886/68. Heading B3Q. A method of expanding hollow metal cylinders by means of an explosive comprises locating a hollow cylinder of the explosive on a cylindrical carrier, e.g. of steel, and positioning the carrier within the workpiece. Water is used between the explosive and the workpiecebore, and the assembly may be immersed in water to a depth sufficient for the detonation to be completed before the explosion-cavity reaches the surface. Direct contact between the explosive and the carrier may be prevented by metal inserts. At least one annular groove may be formed in the carrier to receive the explosive. Long workpiece may be expanded in two stages, firstly into frusto-conical form using a charge adjacent one end, and secondly into cylindrical form by inverting the workpiece and exploding a charge adjacent the unexpanded end. A method is acknowledged wherein a graded non-cylindrical charge is mounted on a carrier
Patent GB-381188-A (GB)
Title: Process for the manufacture of azo dyestuffs containing copper
IPC: C09B45/01
Filed: 1931-06-30
Abstract: Azo dyes, complex copper compounds of.--Copper complex compounds of azo dyestuffs containing groups capable of forming complex compounds are made by bringing the solid azo dyestuffs into intimate contact with finely divided metallic copper or oxides or hydroxides of copper or a copper salt of a weak acid or a complex compound of copper in which the cation in co-ordination with the metal contains a basic component or with a copper salt of a strong inorganic or organic acid with the addition of a solid acid-binding agent.  In examples: (1) the dyestuffs anthranilic acid --> 3-aminophenol-4-sulphonic acid and 5-sulpho-2-aminobenzoic acid --> 3-aminophenol are ground respectively with dry crystallized tetrammine cupric sulphate for 24 hours, (2) the dyestuff 2-aminophenol-4-sulphonic acid --> 3-aminophenol is ground with tetrammine cupric sulphate, (3) the disazo dyestuff 2-aminophenol - 4 - sulphonic acid \sQ 5 : 5<1>-dioxy-2 : 2<1>-dinaphthylamine-7 : 7<1>-disulphonic acid is treated as in (1), (4) the dyestuff 5-sulpho-2-aminobenzoic acid --> 3-aminophenol is ground with copper acetate or (5) with cuprous oxide or (6) with cupric chloride urea, (7) the dyestuff 2-aminophenol-4-sulphonic acid --> resorcinol \sM 1-naphthylamine-4-sulphonic acid is ground with tetrammine cupric sulphate, (8) the dyestuff 2-aminophenol-4-sulphonic acid --> 1-phenyl-3-methyl-5-pyrazolone or anthranilic acid --> 2<1>-sulpho - 1 - phenyl - 3-methyl-5-pyrazolone is treated as in (1), (9) the dyestuff 5-sulpho-2-aminobenzoic acid --> 3-aminophenol is ground with copper sulphate and sodium or magnesium carbonate or sodium acetate, (10) the disazo dyestuff 2-aminophenol-4-sulphonic acid \sQ J acid and (11) the azo dyestuff 2-aminophenol-4-sulphonic acid --> 1-phenyl-3-methyl-5-pyrazolone are treated as in (9), (12) the dyestuff 5-sulpho-2-aminobenzoic acid --> 3-aminophenol is ground with copper powder.
Patent GB-462113-A (GB)
Title: Improvements in or relating to driving mechanism more especially for bicycles or like vehicles
IPC: B62M3/04
Filed: 1935-07-02
Abstract: 462,113. Pedal - crank driving-mechanism. WARREN, C., and HARRIS, W. F. July 2, 1935, No. 18936. [Class 136 (ii)] [Also in Group XXIV] In variable-throw crank mechanism for bicycles and like vehicles and for other purposes, and of the type actuated by a fixed eccentric and a surrounding strap at the inner end of the crank, the eccentric strap is connected by a reciprocating link to an oscillating link on which the pedal &c. pin is mounted, the links being arranged in the following manner. As applied to pedal-crank driving-mechanism for cycles &c., the pin 7 of each pedal 6 is mounted at the end of an oscillating link 8 pivoted at 16 to the crank 2, the pin 7 being moved along an arcuate slot 9 by means of a link 14, which is pivotally connected by a pin 13 to a strap 11 revolubly mounted by ball or roller bearings 12 on an eccentric 10 fixed to the bottom bracket of the cycle frame. The strap 11 is carried round with the crank by means of antifriction rollers 17 engaging a recess 18 in the crank. The link 14 is accommodated in a continuation of the recess 18.
Patent GB-1023143-A (GB)
Title: Photographic production of printing matrices
IPC: G03F7/06
Filed: 1963-05-14
Abstract: 1,023,143. Printing processes. EASTMAN KODAK CO. May 14, 1963 [May 14, 1962], No. 19001/63. Heading B6C. [Also in Division C2] A master comprising a support, a layer containing an organic solvent, soluble polymeric material and a printing pigment (e.g. carbon, magnetite, ultra-marine, nigrosine or copper phthalocyanine) and overlaid in the areas not to be printed with a hardened gelatin resist is mounted on a press, wetted with an organic solvent for the polymer and up to 40 copies run off. Alternatively, a magnetic pigment (magnetite) may be used to produce magnetic copies.
Patent GB-1066545-A (GB)
Title: Improved die block for use in a thread rolling machine
Inventor: SATO TEIJI
IPC: B21H3/06
Filed: 1964-05-07
Abstract: 1,066,545. Rolling threads. KATAYAMA RIVET & SCREW INDUSTRIAL CO. Ltd. May 7, 1964, No. 19027/64. Heading B3M. A die block, for use with a similar block in the rolling of threads on headed blanks, has a working face 25 provided with oblique grooves and with recesses 31a and 31b, and a ridge, which follows ribs 27a and 27b, rising out of the surface of the block. The ridge is positioned obliquely as it follows rib 27a, but then extends substantially parallel to the edge 22. A blank (S), Fig. 4 (not shown) has a thread formed in its initially straight-sided shank portion, the ridge in each block causing the profile of the blank to become progressively curved until, near the end of the blocks, the highest portion 28a of the ridge causes the end portion of the blank to be severed, Fig. 14 (not shown).
Patent GB-498819-A (GB)
Title: Means for feeding a continuously uniform quantity of fluids
IPC: D01D1/06
Filed: 1937-07-09
Abstract: 498,819. Gear-wheel pumps. DEUTSCHE WAFFENUND MUNITIONSFABRIKEN AKT.-GES. July 9, 1937, No. 19118. Convention date, July 9, 1936. [Class 110 (ii)] Two or more gear pumps 3, in parallel or series, are supplied with fluid under pressure and deliver the fluid at the same pressure through an outlet 19. A diaphragm 8 is under the pressure, on the right-hand side, of the suction 2, through a passage 4, and of the delivery fluid of the first and second pumps, through a passage 12. On the left-hand side the diaphragm is under pressure of fluid in the delivery 19. A regulating device 15 controls the quantity of fluid passing through a passage 16 to the delivery. The diaphragm is made of steel or rubber, and flexes to right or left under pressure to close either port 4 or 18. The gear teeth of the two pumps are placed out of alignment to secure a more uniform flow of fluid. A safety device 20 comprises a diaphragm which ruptures under excess pressure in the delivery pipe.
Patent GB-1179593-A (GB)
Title: Duplicating
IPC: G03G13/22
Filed: 1967-04-26
Abstract: 1,179,593. Xerographic duplicating. RANK XEROX Ltd. April 26, 1967[April 29, 1966] No.19129/67. Heading G2H. Xerographic duplicating process in which a master, comprising an electrically conductive backing bearing electrically insulating image areas is overlaid with a sheet of electrically insulating material, the free surface of the insulating material is then electrostatically charged, the insulating material separated from the master and the electrostatic image thus formed on the master is developed and transferred on to a support e.g. of paper. The master may be prepared by transferring a xerographic image of insulating material on to the conductive backing followed by fixing.
Patent GB-728195-A (GB)
Title: Improvements relating to means for separating particles suspended in liquids
Inventor: AUSTIN ERIC PAUL
IPC: B03B5/44
Filed: 1953-07-10
Abstract: 728,195. Sink and float separation. SIMONCARVES, Ltd. Sept. 3, 1953 [July 10, 1953], No. 19181/53. Class 82 (2). Apparatus for separating magnetizable and non-magnetizable particles in suspension in a liquid especially for regenerating a sink-andfloat medium, comprises a settling tank, means for magnetizing the magnetizable particles fed to the tank to agglomerate them so that they may sink in the tank, means for allowing escape of liquid and non-magnetizable particles at the top of the tank, and means for drawing liquid and magnetic particles from the bottom of the tank and either passing the suspension of liquid and particles back to the lower part of the tank, or, if it is of the correct density, utilizing part or all of it as a sink-and-float medium. A tank 1 has an annular non-magnetic wall 2 extending below the liquid level in the device and the mixed suspension is supplied through a pipe 3 within the annulus. A channel 5 receives the overflow from the tank. A rotating non- magnetic disc 7 is arranged above the pipe 3 with a rim dipping in the liquid, and an electromagnet 10 placed above the disc creates an intense local magnetic field. The magnetic particles in the liquid agglomerate and adhere to the plate 7, are carried out of the magnetic field and drop to the bottom of the tank 1. A pump 13 returns the magnetic suspension via a demagnetizer 14 to a splitter unit having a flexible pipe 19 which discharges either into the tank through a pipe 16, if the density is incorrect, or into a pipe 17 if the specific gravity of the discharged suspension is correct. A densitymeasuring device 24 controls the movement of the flexible pipe 19 through a pneumaticallyoperated device 21.
Patent GB-1283071-A (GB)
Title: Improvements in or relating to optical viewing device
IPC: G02B5/23
Filed: 1966-05-02
Abstract: 1283071 Optical apparatus USA ARMY SECRETARY OF 2 May 1966 [30 April 1965] 19318/66 Heading G2J An optical device in a viewing system for protecting an observer or a light sensitive instrument from the harmful effects of intense light comprises a light absorbing cavity 21 having a carrier 22 for retaining a reflector 23 sensitive to the thermal effect of the incident light 24. The reflector 23 may be a thin metallic film of aluminium or a thin film of highly reflecting plastic material. When the thermal effect of the incident light exceeds a predetermined value the reflector 23 is evaporated by the absorbed energy so that the light enters the absorbing cavity 21.
Patent GB-1437021-A (GB)
Title: Reaction products of epsilon-caprolactam with n-substiuted
IPC: A61P31/04
Filed: 1973-04-24
Abstract: 1437021 Reaction products of a caprolactam with N-alkylalkanediamines HENKEL & CIE GmbH 24 April 1973 [24 April 1972] 19397/73 Heading C3R [Also in Division C2] Reaction products of a caprolactam with N-alkylalkanediamines or N-alkenealkanediamines, the diamines having the general formula where R signifies a straight or branched chain, saturated or unsaturated, aliphatic hydrocarbon residue having 10 to 18 carbon atoms, R<SP>1</SP> signifies hydrogen or an aliphatic hydrocarbon residue having 1 to 4 carbon atoms, n is an integer from 2 to 6 in which the molar ratio of the diamine : caprolactam is from 1 : 1 to 1 : 10 and the reaction is carried out for 3 to 20 hours at temperatures above 180 C. are disclosed. The reaction may be effected in the molten state. The products may be used in antimicrobial and anti-algicidal compositions.