baber/WOPTO huggingface dataset:
Patent GB-1463356-A (GB)
Title: Production of a difference signal
IPC: G05D3/12
Filed: 1974-06-28
Abstract: 1463356 Automatic control SIEMENS AG 28 June 1974 [28 June 1973] 28945/74 Heading G3N An arrangement for producing a difference signal proportional to the value of the phase difference of a first pulse train relative to a second pulse train, compares the trains to produce a third pulse train having a 1:1 pulse-interval ratio at zero phase difference which is converted to a signal which is zero at the 1:1 ratio and positive or negative in dependence on the phase difference. In a numerical control system, wherein a spindle of a machine tool is driven by a closed loop speed control system, an analogue speed determining signal is derived by combining an interpolator output pulse train with incremental spindle-position pulses in a synchronizing device and subsequent comparison of combined pulses, having a phase difference representative of position error, in a comparing device, as shown, the output pulse-width modulated outputs F and G of which are fed through a D to A converter to provide the analogue signal. The comparing device comprises frequency dividers FT, RT, GT of which RT receives pulses from a clock 31, FT receives two pulse trains through a mixing stage 38; and GT receives the clockpulse train and transfer pulses from a logic device 35 through a mixing stage 36. The outputs of the frequency dividers are applied to exclusive -NOR gates 32, 33 to provide signals #F, #G. The sign of the position error is derived by a device 34 and determines the sign of the transfer pulses from the logic device 35. The transfer pulse is also fed to a mixing stage 37 of the frequency divider FT to return the signal #F within the range limits.
Patent GB-331443-A (GB)
Title: Improvements in counting apparatus
IPC: G06M1/22
Filed: 1929-09-25
Abstract: 331,443. Bowser & Co., Inc., S. F. Aug. 21, 1929, [Convention date]. Addition to 331,145. Zeroizing mechanism.-The shutter i for covering the indication during zeroizing is now operated by a cam mwhen the spindle is turned to prevent reverse turning of the spindle a pawl r engages teeth s so situated on the cam as to lock the spindle with the shutter in obscuring position (Fig. 3).
Patent GB-189108-A (GB)
Title: Oil-retaining ring and dust-excluding ring for roller-lubrication bearings and the like
IPC: B61F15/22
Filed: 1922-10-25
Abstract: 189,108. Schneider, Dr. Ing. & C. A. Nov. 14, 1921, [Convention date]. Dust, excluding; oil, retaining.- A dust-excluding ring 11, Fig. 1, furnished with a felt washer 12, and an oil-retaining ring 5, provided with a wiper 6, are mounted side by side in an axle-box to encircle the axle collar 2 without attachment to the axle-box, the ring 5 being flexibly suspended from the ring 11. The suspension spring is secured to a frame 14 arranged on the ring 11, the frame being made of brass or other bearing metal and arranged to bear against the collar 2 so as to relieve the felt 12 from pressure. Fig. 4 shows a modified form of the dust excluding ring comprising a wooden frame 17 containing a felt ring 12 and a segment 18 of brass or other bearing metal. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also the following features. (1) The dust-excluding ring shown in Fig. 4 may be used without an oil-retaining ring. (2) The suspension spring shown in Fig. 1 may be arranged to press the ring 5 against the axle bush. (3) The rings may be arranged as shown in Fig. 1 (Cancelled) and Fig. 2 (Cancelled), the ring 5 being suspended from a frame 7 having nosepieces 8 engaging the rim of the dust-ring chamber 9 by a flat spring 10 coiled in a double loop, the spring being arranged in such a way that, in addition to giving vertical support to the ring 5, it presses the ring against the bush 4; or a special spring may be provided for this purpose. In a modification, the ring 5 is attached to the frame 7 by two or more spiral springs. This subjectmatter does not appear in the Specification as accepted.
Patent GB-366477-A (GB)
Title: Improvements in and relating to the transmission of pictures
IPC: H04N5/04
Filed: 1930-09-29
Abstract: 366,477. Television. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Kell, R. D. ; 111, Sanders Avenue, Scotia, New York, U.S.A.) Sept. 29, 1930, No. 29137. Convention date, Sept. 30, 1929. [Class 40 (iii).] Relates to television receivers in which a beam of cathode rays is traversed over a fluorescent screen 15 by charged electrodes 17, 18, and 19, 20, and consists in controlling the potentials applied to these electrodes by condensers 24, 26, and rectifiers 21, 23 connected in parallel between the cathode 13 of the vacuum tube and the electrodes 18, 19, the condensers 24, 26 being intermittently charged by a commutator 28 and discharged at a constant rate through rectifiers 21, 23. The system is designed to co-operate with a transmitter employing a rotating scanning disc, the commutator 28 being driven synchronously with the scanning disc and charging condenser 24 once per revolution, condenser 26 being charged as many times per revolution as there are apertures in the scanning disc. The output of the receiver 10 is applied to the anode 14 and cathode 13 to modulate the cathode beam.
Patent GB-1060714-A (GB)
Title: Spreadable viscous fluid coating compositions
IPC: C08L81/00
Filed: 1963-07-23
Abstract: A container sealed against the atmosphere contains a composition comprising a liquid thiol-terminated polysulphide or a liquid thiol-terminated polyester as defined in Specification 941,829, an oxidative curing agent therefor and 2 to 30% by wt. of the polymer of barium oxide or hydroxide dispersed throughout the composition as an impalpable powder, the composition whilst in the container remaining spreadable for at least 3 months at room temperature and at least 3 days at 120 DEG  F. in the presence of 1% isosebacic acid and being capable of atmospheric curing to the rubbery state with a non-tacky surface in 1/8 inch section within 4 days at 77 DEG  F. and 50% relative humidity. Specified curing agents are various peroxides and dichromates, potassium chlorate and zinc oxide and chromate. Optional ingredients mentioned or included in examples are liquid epoxy resins, isosebacic acid, calcium carbonate, titanium dioxide, dixylyl disulphide, neopentyl glycol isosebacate, solid thixotrip agent derived from vegetable oil and chlorinated diphenyl while the only Example (5) employing a thiol-terminated polyester also includes as the predominant constituent an olefinic polyester of maleic acid, isobutyl alcohol and a hydroxy ether of glycerol and dihydroxypropane.  Coating compositions.-The composition may be applied as a sealing, gasketing or protective coating to masonry, glass, metal, wood or concrete and in examples is applied to a vertical wall, clean glass and cotton duck fabric.ALSO:A container, sealed against the atmosphere contains a composition applicable as a sealing, gasketing or protective coating, e.g. to masonery, glass, metal, wood fabric or concrete, and comprising a liquid thiol-terminated polysulphide or a liquid thiol-terminated polyester as defined in Specification 941,829, an oxidative curing agent therefor, and 2 to 30% (by wt. of the polymer) of barium oxide or hydroxide dispensed throughout the p  composition as an impalpable powder; the composition whilst in the container remaining spreadable for at least 3 months at room temperature and at least 3 days at 120 DEG F. in the presence of 1% isosebacic acid and being capable of atmospheric curing to the rubbery state with a non-tacky surface in 1/8 " section within 4 days at 77 DEG F and 50% relative humidity. Specified curing agents are various peroxides and dichromates, potassium chlorate and zinc oxide or chromate.  Optional ingredients mentioned or included in Examples are liquid epoxy resins, isosebacic acid, calcium carbonate, titanium dioxide, dixylyl disulphide, neophentyl glycol isosebacate, solid thixotropic agent derived from vegetable oil, chlorinated diphenyl and (in Ex. 5) an olefinic polyester as predominent constituent.  In Examples the compositions are applied to a vertical wall, clean glass and cotton duct fabric.
Patent GB-1275991-A (GB)
Title: Catalyst preparation
Inventor: JONES JOHN ROBERT
IPC: C07C2/24
Filed: 1969-06-10
Abstract: 1275991 Oligomerisation catalysts BP CHEMICALS Ltd 29 April 1970 [10 June 1969] 29359/69 Heading B1E [Also in Division C5] A supported lithium catalyst is prepared by impregnating an anhydrous potassium compound with a hydrocarbyllithium and decomposing the hydrocarbyllithium. The potassium compound can be a sulphate, silicate, halide or carbonate. The decomposition can be performed by heating under an inert gas or hydrogen and the catalyst can be heated under hydrogen before use. In an example K 2 CO 3  is impregnated with a cyclohexane solution of BuLi, and dried and decomposed by heating at 120‹C.
Patent GB-1155863-A (GB)
Title: Copolymers of Trioxan Capable of being Crosslinked by Light and a process for their manufacture
IPC: C07D303/22
Filed: 1966-06-30
Abstract: 1,155,863. Trioxan-epoxy compound copolymers. FARBWERKE HOECHST A.G. 30 June, 1966 [30 June, 1965], No. 29495/66. Heading C3P. Copolymers comprising 70 to 99À5% by weight of trioxane, 0 to 10% by weight of a cyclic ether or cyclic formal, and 0À5 to 20% by weight of a bifunctional compound of the formula where R 1  is an alkoxy radical containing up to 6 carbon atoms and R 2  is the radical B having the formula or in which R 1  is the radical B and R 2  is a phenyl radical, are prepared by copolymerizing the monomers in the presence of a cationic catalyst and at - 50 to + 110 C. Specified bifunctional compounds are o- and p.glycidoxy cinnamic acid alkyl esters and 2,3-epoxypropoxy-4 cinnamoylbenzene. Specified cyclic ethers are ethylene oxide, propylene oxide, epichlorhydrin, 1,4 - butanedioldiglycidyl ether, and oxacyclobutane. Specified cyclic formats are those of diethylene glycol, 1,4-butanediol, 1,4- butenediol, and also 1,3-dioxolan. The copolymers may be cross-linked by exposure to light and stabilized by alkaline degradation. Light and oxidation stabilizers may be incorporated in the copolymer. In the examples, trioxan is copolymerized with p-glycideoxy cinnamic acid methyl ester or 2,3-epoxy-propoxy-4-cinnamoylbenzene and ethylene oxide in the presence of BF 3 .(C 4 H 9 ) 2 O or p-nitrophenyldiazonium fluoroborate. Reference has been directed by the Comptroller to Specification. 984,519.
Patent GB-1182109-A (GB)
Title: A Method and Device for Eliminating Some Pulses from a Pulse Train
IPC: H03K5/22
Filed: 1967-06-27
Abstract: 1,182,109. Pulse discriminating circuits; limiters. CEA-PEREGO S.p.A. 27 June, 1967 [1 July, 1966], No. 29535/67. Headings H3P and H3W. In a method of eliminating from a pulse train, pulses of amplitude less than that of preceding pulses, the pulses are passed via a subtractor S to an amplifier A which passes only positive pulses, pulses at the output of the amplifier being arranged to charge the capacitor C to a voltage which is subtracted at S from the input pulses I so as to determine the minimum amplitude of pulse to be passed.
Patent GB-370024-A (GB)
Title: Improvements in or relating to boot or shoe lasting machines
IPC: A43D21/12
Filed: 1930-10-03
Abstract: 370,024. Boot - making machines. BRITISH UNITED SHOE MACHINERY CO., Ltd.., RICKS, F., WOODCOCK, R. B., and LANE, H., Union Works, Belgrave Road, Leicester. Oct. 3, 1930, Nos. 29591/30, 37059/30, and 10956/31. [Class 17 (i).] L a s t i n g. - Relates to heelseat lasting machines of the kind described in Specifications 316,025, [Class 17 (i), Boots and shoes, Apparatus for making &c.], and 351,386, wherein a pair of wipers each operates to last one of the opposite sides and a. portion of the rear of the heel seat, and through each of which wipers the machine drives a gang of fasteners into upper material wiped on to the shoe bottom by the wipers. The wiper operating mechanism is modified to cause the concluding portion of the wiping to be performed by a closing together of the wipers unaccompanied by a toeward bodily movement. The tack holding means in the wiper include members yieldingly pressed outwardly and accessible from the space within the wipers. A detachable extension is provided on each wiper, provided with a fastener holder. The heel band is held at its ends against heightwise displacement but allowed to move longitudinally of the shoe by members which extend from and are secured to the band between its upper and lower edges and engage supports secured to the frame. The shoe is thrust against a holddown mechanically moved upwards while the wipers conclude their single wiping movement. The wiper operating slide is divided into two parts 28, 28<1> each provided with a cam roll 60, the two rolls engaging a single cam groove. The part 28 carries racks operating levers 82 controlling the closing movement of the wipers, the construction being such as to produce no closing movement foi the first half of the advance of the wipers, half the closing movement during the second half of the advance, and a final closure with no advance. Each wiper has a detachable extension 181 for use with large shoes, held in position, by a rib 18<11> provided with a tongue engaged by a latch 18<1111>. The upstanding rib at the inner edge of the wipers is thickened and bored to receive the tacks, each tack being retained and biased with its point directed inwardly of the shoe by a steel ball 124<1> urged inwardly by a flat spring. To prevent the toe end of the shoe being tipped down by the wipers, the forward ends of the heel band 12 are held against vertical movement while being allowed to move longitudinally of the shoe by the interengagement of ribs 94<1> on blocks secured to the band with grooves on the usual band presser rods 188. Specification 235,286, [Class 17 (i), Boots and. shoes, Apparatus for making &c.], also is referred to.
Patent GB-475023-A (GB)
Title: Improvements in or relating to the treatment of thread, particularly artificial silk or rayon or other thread
IPC: D01D10/04
Filed: 1936-02-07
Abstract: In apparatus for the production of thread, <PICT:0475023/IV/1> particularly artificial silk thread, of the kind comprising reels or the like upon which the thread being formed and treated is wound in a large number of advancing helical turns, each reel is driven from one end only and has no shaft extension beyond the other end, so that the latter is free and unobstructed, and all the reels are disposed on an operative face of the machine, so that the free and unobstructed ends are presented to that face. As shown, the reels 5a ... 5i are arranged in stepped formation in two inclined banks, and the threads from the spinnerets pass thereto from a reel 5, the discharge end of each of the reels being substantially in the same plane as the receiving end of the next succeeding reel.  Specifications 413,413; 413,414, [Group IX], 474,973, and 474,974 are referred to.
Patent GB-1291914-A (GB)
Title: Improvements in or relating to opposed piston two-stroke cycle internal combustion engines
IPC: F02B75/28
Filed: 1970-06-19
Abstract: 1291914 I C engines; charging and scavenging two stroke engines DOXFORD & SUNDERLAND Ltd J F BUTLER J W JORDAN and F ORBECK 27 May 1971 [19 June 1970] 29951/70 Heading F1B An opposed piston two stroke I.C. engine with pistons connected to separate cranks on a single crank-shaft has exhaust driven turbochargers 26, 27 at each end of the engine, one driven by exhaust leaving the cylinders from one side of the engine 10, the other by exhaust leaving from the other side 11. Scavenging and combustion air is admitted under pressure to the cylinders through ports at or near one end of the cylinder walls and exhaust is from ports (2), Fig. 2 (not shown), at or near the other end of the cylinder walls. Each cylinder is surrounded by an exhaust manifold arranged to direct exhaust from the ports at the said one side of the engine towards the said one end of the engine and to direct exhaust from the ports at the other side of the engine to the other end of the engine.
Patent GB-275464-A (GB)
Title: Improvements in the tongues of shuttles for looms for weaving
IPC: D03J5/08
Filed: 1926-11-29
Abstract: 275,464. Rothwell & Son (Bury), Ltd., J., and Taylor, E. Nov. 29, 1926. Shuttles.-A shuttle peg A for the reception of a cop or bobbin has a coiled spring B arranged in a socket in the heel a<1> with its axis approximately parallel to the tongue the end of the bow spring A<1> being tapered' or otherwise reduced in diameter to pass into the coiled spring which, acting on a shoulder on the bow spring, tends to press it out and causes it to maintain its resiliency.
Patent GB-642433-A (GB)
Title: Improvements relating to magnetic clutches
IPC: H02K49/10
Filed: 1947-11-12
Abstract: 642,433. Magnetic clutches. STEENSEN, S. J. Nov. 12, 1947, No. 30143. Convention date, Jan. 2, 1946. [Class 35] Each member of a permanent magnetic clutch has a series of poles 3, 3<SP>1</SP>, 4, 4<SP>1</SP> energized by an axially-disposed annular permanentmagnet 9, 10 respectively. The pole teeth may extend partly towards each other as shown, or, in a modification, may be interdigitated. The Specification as open to inspection under Sect. 91 comprises also a further modification in which each member comprises a series of magnets moulded in a non-magnetic rim, the coupling being adjustable by relative axial movement. This subject-matter does not appear in the Specification as accepted.
Patent GB-399327-A (GB)
Title: Improvements in the method of, and apparatus for, drying and cleaning hides
IPC: C14B1/26
Filed: 1932-10-27
Abstract: 399,327. Cleaning hides. HERTZSCH, P., 2, Promenadenweg, Markranstadt, near Leipsic, Germany. Oct. 27, 1932, No. 30168. Addition to 340,940. [Class 138 (i).] In the process of drying hides with simultaneous cleaning thereof by subjecting the hides to heat and to an agitating movement accompanied by suction, as described in the parent Specification, the cleansing agents are allowed to pass out freely with the stream of air, by which they are taken to a separator, whence the air is discharged and the finely divided cleansing agents returned to the drying chamber. The separator may be heated to dry the cleansing agents before their return to the drying chamber. In the form illustrated, the hollow journal e of a rotary drying drum a is connected to the suction side of a blower k which delivers to a jacketed separator m having an outlet o surrounded by a funnel p connected to the trunnion e<1>. Atmospheric air may be supplied to the drum through a perforated cover y and adjustable ring z on the funnel p. Heated air is delivered from the pipe c, which is surrounded by a heating jacket q supplied from the jacket r of the separator m. The grids u in the drum serve to keep the skins away from the air inlet and outlet.
Patent GB-1011698-A (GB)
Title: Process of producing blackheart type malleable iron and products produced thereby
Inventor: LAUDENSLAGER HARRY BROWN
IPC: C21C1/08
Filed: 1964-07-29
Abstract: Blackheart malleable iron is produced by melting a white iron composition free of nickel and copper other than conventionally present as impurities, adding metallic magnesium in sufficient quantity to leave a residual amount of 0.02-0.05%, at least 50% of the magnesium being in the form of spheres having a size range between 6 and 100 U.S. Standard Mesh, solidifying the metal and annealing.  Preferred compositions are within the range: .C.1.0 -4.0% by weight .Si.0.5 -4.5 .Mn.0 -1.0 .S.0 -0.02 .P.0 -0.15 .Mg.0.02-0.05 .Fe.and impurities balance Annealing may be carried out in two stages at 1650  DEG F. and 1300  DEG F., possibly followed by tempering or stress relieving at 600-1300  DEG F. Specification 678,487 is referred to.
Patent GB-1301610-A (GB)
IPC: F21V17/20
Filed: 1971-06-28
Abstract: 1301610 Light fitting PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 28 June 1971 [1 July 1970] 30182/71 Heading F4R [Also in Division E2] A light fitting has an elongate moulded plastics housing 1, a sealing member 5 and a translucent cover 6 secured together by a clip 7. The clip 7 comprises a brace 8 which is located in a slot 11 moulded integrally with the housing 1 and a spring plate 9. The brace 8 is held in the slot by a block of synthetic plastics material 13 or a U-shaped spring-plate 14.
Patent GB-1391518-A (GB)
Title: Monoazo compounds and textile materials dyed therewith
IPC: D06P3/52
Filed: 1972-06-28
Abstract: 1391518 Monoazo dye stuffs EASTMAN KODAK CO 28 June 1972 [30 June 1971] 30192/72 Addition to 1275603 Heading C4P New monoazo dyes of formula where R is H or alkyl; R<SP>1</SP> is alkyl; R<SP>2</SP> is H or alkyl ; X is H, halogen, alkyl alkoxy are prepared by diazotizing 2-cyano 4,6 dinitroaniline and coupling with the appropriate coupling component. Alternatively a 2-halo-4,6-dinitroaniline may be used as diazo component and after coupling the monoazo compound is treated with a metal cyanide to replace the halogen atom by CN. The dyes give deep blue shades on hydrophobic fibres, particularly polyester fibres.
Patent GB-1003340-A (GB)
Title: Improvements in and relating to diaphragm spring clutches
Inventor: ATTACHED IAN TREVOR BRISTOW DR
IPC: F16D13/58
Filed: 1963-07-30
Abstract: 1,003,340. Friction clutches. AUTOMOTIVE PRODUCTS CO. Ltd. July 17, 1964 [July 30, 1963], No. 30210/63. Heading F2C. A split fulcrum ring 1 for arrangement on each side of a diaphragm-spring of a clutch has ends 2, 3 offset radially inwards and bent to provide lateral projections 4, 5 which can be sprung into apertures in the diaphragm springs, or clutch cover, whereby the ring is located and held in position.
Patent GB-173650-A (GB)
Title: Improvements in ventilator cowls
IPC: F23L17/10
Filed: 1920-10-26
Abstract: 173,650. Fay, F. G., and Hertach, F. Oct. 26, 1920. Ventilating-shaft tops.-A cowl for ventilators, of the type comprising a rotary portion supported on a pivot and provided with means for creating a draught by the action of the wind comprises a conical body 3 supported on a spindle 25 and provided with a baffle 20 to prevent access of smoke to the rear part of the cone, there being horizontally-disposed funnel-like members 12 to direct an air-current through the interior of the body. The end of the cone is filled with material 23 for counterbalancing purposes, and a guard-ring 6 surrounds the mouth.