baber/WOPTO huggingface dataset:
Patent GB-326696-A (GB)
Title: An improved method of and apparatus for rolling metals
IPC: B21B13/06
Filed: 1929-04-25
Abstract: 326,696. Robinson, P., April 25, 1929. Shearing; rolling. - An ingot 24 with preformed grooves 25, Fig. 3, is passed through feed or reducing rolls 3 to one or more pairs of cutting discs 7, one set of discs, e.g. the bottom set being arranged in advance of the top discs. The tangent cutting line of the bottom set is also higher than that of the top discs. The severed sections then pass through splayed guides with upper and lower guide rails 10, 11 to finishing rolls 12. The rolls 12 have concave sides to fit between convex faces on nut and collar 14 of worm driven spindles 13. The bearings 20 are adjustable.
Patent GB-1530747-A (GB)
Title: Pharmaceutical composition
IPC: A61P35/00
Filed: 1977-03-28
Abstract: 1530747 Pyrazolo[4,3-d]pyrimidines MASSACHUSETTS INSTITUTE OF TECHNOLOGY 20 March 1977 [5 April 1976] 12899/77 Heading C2C [Also in Division A5] 3-methyl-7-n-pentylaminopyrazolo [4,3-d)-pyrimidine is prepared by reacting n-pentylamine with 3-methyl-7-methylthiopyrazolo-[4,3-d]- pyrimidine and purifying the product by chromatography.
Patent GB-149462-A (GB)
Title: Improvements in or relating to machines for harvesting beet or the like
IPC: A01D27/02
Filed: 1919-05-23
Abstract: 149,462. Saur, G. May 23, 1919. Crops, root, digging-machines for.-A machine for harvesting beet &c. comprises a rotary topcutter. digging-shares, an inclined conveyer, and a receiving hopper, and is provided with a pivoted V-shaped draught-bar to facilitate operation by hauling-cables connected to winding- engines at the ends of the field. The front wheels b are mounted in a turntable b<2> and are steered by means )f an endless chains b<3> and hand-wheel b<4>. The rear wheels c may be provided with ground grips movable by cams. The top-cutter d is of lawn-mower type, and is driven at a high speed by a chain h so as to pulverize and distribute the leaves and stalks. It is adjustable. vertically by means of a bell-crank lever i connected to a hand-lever i<3> or to a pedal. It is thrown out of gear when raised. The digging- shares e are adjustable vertically by means of racks and pinions operated by a worm spindle e<5> and a hand-wheel e<6>. The roots are delivered to a hopper f by an inclined conveyer consisting of rotary spindles g provided with curved prongs g<2>. The spindles g are connected by spur gearing and are driven from the axle c<1> by a chain c<4>. A screen may be provided between the cutter d and the elevator. The forked draught-bar j<1> is pivoted at j and connected to two hauling-cables. When the direction of haulage is reversed at the end of the field, the bar j<1> turns on its pivot and strikes against the frame of the implement so that the latter is turned round by the hauling- cable.
Patent GB-994285-A (GB)
Title: Method for the regeneration and reactivation of deactivated supported platinum catalysts
IPC: C07C9/16
Filed: 1963-04-02
Abstract: In a method for the regeneration and reactivation of a deactivated supported Pt catalyst contained in at least one bed and on which carbonaceous deposits have been accumulated, at least a portion of the carbon is removed at an elevated temperature, e.g. below 566  DEG C., after which a gaseous mixture containing oxygen, steam, chlorine and/or a decomposable chlorine compound, e.g. HCl or trichlorethylene, is passed through the catalyst bed or beds at an elevated temperature in a first step, the molar ratio of steam to chlorine in the gaseous mixture being such as to provide an equilibrium chlorine content of at least about 0,5% by weight on an upstream portion of the catalyst bed or beds based on this catalyst portion, the first step being continued until the amount of chlorine deposited on the upstream portion of the catalyst is substantially equivalent to the theoretical amount required to bring the total catalyst to the desired level, whereafter in a second step the steam to chlorine ratio in the gaseous mixture is increased to a value substantially not higher than that which gives the desired final equilibrium chlorine content on the catalyst, this second step being continued until the total catalyst is substantially at equilibrium. An example is given.
Patent GB-178735-A (GB)
Title: Tooth brush
IPC: A46B9/04
Filed: 1921-05-09
Abstract: 178,735. Rogers, F. H., (Western bottle Manufacturing Co.). May 9, 1921. Tooth-brushes. - A tooth-brush comprises a convex brushing-surface formed from tufts of bristles 16 set radially in a curved back 12 so that they brace one another at their outer extremities. The tufts increase in height from each end of the brush to a point 32 located at the rear of the centre of the brush. The whole surface is used for cleaning the inner portions of the teeth, while the surface from the outer end of the brush to point 32 is used to clean the outer portions.
Patent GB-131613-A (GB)
IPC: C03B11/02
Abstract: 131,613. Morris, A. W. July 23, 1917. Melting-pot furnaces; discharging.- A melting-pot C, with its heating burners c, is arranged so that it can be swung over moulds l on a rotating table, valves in the pot being opened automatically for a definite time to fill the moulds successively. The valves 61 are raised against springs 63 by racks 62 and gears 65, Fig. 2, and the arm 67 is moved by an adjustable cam 70 on a plate 71, which is rotated through the hollow shaft 60 and bevel gear 73, Fig. 3, and chain gear 58 and 56, from a sleeve 40, Fig. 7, which is intermittingly rotated from the pulley 36 through a clutch 44, which is normally open, but closed at predetermined times as hereinafter described. In order to correct the position of the mould slides 82 and to ensure all the ejecting pins 87 are withdrawn, fixed cam surfaces y, y, Fig. 3, engage the bars 88 and position them correctly. To operate the valves 61 at the desired time a cam 154 on the plate 101, Fig. 5, moves an arm 153 connected to an arm 149 whose forked end 165, Fig. 12, engages a pin 151 of a rod 147 which is fixed to an arm 146 of a shaft 144, Fig. 7, another arm 145 of which is adapted to raise the weighted rod 49 and remove the bowl 48 from the slot in the clutch 44 which is then moved by springs into engaging position. Handles 68, 69, Fig. 2, are provided on the parts 65, 61 for manual operation when required, and the machine is brought to rest when unclutched by a constant brake 52, Fig. 3. The melting-pot c, Fig. 3, can be swung aside on the shaft 60 on ball bearings when released by operation of a catch 86<2>, the mixed air and gas pipe being coaxial with this shaft and provided with a joint g.
Patent GB-775673-A (GB)
Title: Improvements relating to automatic gain control circuits for television receivers
Inventor: BILLIN JAMES JOHN
IPC: H04N5/53
Filed: 1954-05-06
Abstract: 775,673. Automatic gain control. ELECTRIC & MUSICAL INDUSTRIES, Ltd. April 26, 1955 [May 6, 1954], No. 13194/54. Class 40(5) In a television A.G.C. circuit a video amplifier 1 feeds video and synch signals, with the latter positive going, to a synch separator 12. These signals are also fed via condenser 15 and resistor 16 to a D.C. restoring diode 17, to which are also fed amplified and inverted synch signals from the anode of the separator 12, via condenser 19 and resistor 20. The resistors 16, 20 are so proportioned that the amplified and inverted synch pulses cancel the synch pulses in the combined signals; the resultant waveform at the anode of the diode 17 has the black level as its most positive component (Fig. 3(c), not shown). Hence the diode 17 clamps the waveform at its anode at the black level, so that the waveform across resistor 18 comprises positive synch pulses and negative video signals. This waveform is applied to the grid of an A.G.C. valve 21. The anode of the valve 21 is connected to the ground line by a resistor 25 and via condenser 27 to a source of positive going pulses, comprising the line output stage. The cathode is given a positive potential by means of a potentiometer comprising resistors 22, 24 connected between the ground line and the screen of the video amplifier 1. The arrangement is such that the valve 21 is rendered conductive by the pulses on its anode, to an extent determined by the amplitude of the positive-going synch pulses at its grid. The resultant potential across the resistor 25 is smoothed by R, C, filter 26, 27a and constitutes the A.G.C. potential. The A.G.C. potential is greatly increased if the valve 1 is overloaded, since the cathode potential of the 'valve 21 is thereby reduced. Embodiments are also described in which the A.G.C. valve 21 is energized by a steady potential, instead of pulses. In one, Fig. 3 (not shown), the resistors 18, 22 and the cathode of the diode 17 are returned to a source of negative potential, which may comprise a smoothing circuit across the grid circuit of the line output valve. In another, Fig. 4 (not shown) the anode resistor, of the valve 21 is connected to the H.T. + line; in this case the pulses appearing in its anode circuit are coupled by a condenser to a further diode rectifier, the output of which constitutes the A.G.C. potential. Specifications 484,202 [Group XL] and 774,113 are referred to.
Patent GB-936666-A (GB)
Title: A process for uniting natural or synthetic elastomers with elastomers or other materials
IPC: C08J5/12
Filed: 1960-04-13
Abstract: 936,666. Laminates. FARBENFABRIKEN BAYER A.G. April 13, 1960 [April 16, 1959], No. 13230/60. Class 140. A graft polymer of an elastomeric polymer of a conjugated diolefine having 4 to 6 carbon atoms and an ester of acrylic or methacrylic acid with a monohydric saturated aliphatic alcohol containing from 1 to 4 carbon atoms is used as bonding agent to unite synthetic resins, leather, textiles, natural or synthetic elastomers or vulcanizates with natural or synthetic elastomers. The substrate for the graft polymer may be a copolymer of butadiene and styrene or acrylonitrile, a homopolymer of isoprene or butadiene, or natural rubber. The materials that may be bonded include polyvinyl chloride and polyamides ; iron, steel, copper, zinc, aluminium and their alloys; textiles of cotton, wool, rayon (including rayon cords), cellulose acetate or synthetic fibres or cords, e.g. of polyamides or polyesters ; copolymers of butadiene and styrene or acrylonitrile, homopolymers of butadiene, isoprene and chloroprene or vulcanized products of these polymers. The bonding layer may be vulcanized. The bonding agent may in some cases be mixed with other bonding agents, e.g. resorcinol-formaldehyde resin. The bonding of leather shoe uppers to rubber soles is described and the application of the invention to car mats and floor coverings referred to.
Patent GB-132786-A (GB)
IPC: G03B15/08
Abstract: 132,786. Kaufmann, F. Sept. 18, 1918, [Convention date]. Kinematograph apparatus; optical systems and apparatus.-A device comprising a system of mirrors, and adapted to be applied to the front of a kinematograph camera or projector for films having pictures of standard size, is used to rotate the pictures through a right angle about the axis of the lens; pictures of tall objects may thus be taken with the height of the picture in the direction of the longer dimension, and such pictures may be correctly projected. The mirror system is mounted on a plate a which is attached to the kinematograph apparatus, and comprises a mirror d at an angle of 45 degrees to the axis of the lens, a mirror e parallel to this axis but inclined at an angle of 45 degrees to the upper edge of the mirror d, and a mirror f inclined at 45 degrees to the axis of the lens and also at 45 degrees to the upper edge of the mirror e. A hinged mounting for the mirror d, enabling it to be turned into or out of the projection beam in accordance with the shape of the pictures on the film, and electromagnetic means for operating this mirror, arc described, but are stated to form no part of the present invention. As shown, the mirror d is carried by a hinge spindle h carrying the armature g of an electro-magnet i. Two contact members are provided near the top sprocket of the projector, and a contact strip is provided on the edge of the film near the position at which the shape of the pictures changes. When the strip engages the contact members, a circuit is completed which energizes the electro-magnet through a relay and so turns the mirror. The Specification as open to inspection under Sect. 91 (3) (a) states that the mirrors may be. placed on a slide which may be brought into the ray path by the operation of the film on a stop, or electrically. This subject-matter does not appear in the Specification as accepted.
Patent GB-132964-A (GB)
IPC: C14C15/00
Abstract: 132,964. Walker, W., Exley, A., and Walker, C. J. Jan. 7, 1919. Coating-machines.-An apparatus for waterproofing small pieces of leather such as boot soles &c. comprises a tank a with a water-jacket b, and a removable cage or grid in which the pieces of leather to be treated are arranged on their edges. The tank may be heated by steam, water, oil, or electricity, and the jacket may be fitted when required with feed, overflow, and discharge pipes, water-gauge, and one or more thermometers. The cage is made up of horizontal plates v, w, retained at suitable distances apart on vertical rods y, and is fitted with rings 2 for lowering it into and lifting it from the molten waterproof material in the tank. Any usual waterproof composition is used, such as' a mixture of bees-wax and paraffin or turpentine.
Patent GB-629110-A (GB)
Title: Improvements in screw extrusion presses
IPC: B29C48/435
Filed: 1946-05-02
Abstract: 629,110. Extrusion presses. SOC. P. A. LAVORAZIONE MATERIE PLASTICHE. May 2, 1946, No. 13330. Convention date, April 30, 1943. [Class 87 (ii)] [Also in Groups XXVI and XXX] An extrusion press comprises three or more screws, the threads of each of which mesh with the threads of at least two other screws. A modification with seven screws is shown. In Fig. 5 some of the screws 3 are shorter and the material fed by them is conveyed to the nozzle 6 by the longer screws 2. The screws may be in sections of progressively decreasing pitch and diameter as in Specification 629,109.
Patent GB-997184-A (GB)
Title: Improvements in or relating to methods of manufacturing semiconductor devices
IPC: H01L35/08
Filed: 1962-04-06
Abstract: 997,184. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 6, 1962 [April 10, 1961], No. 13346/62. Drawings to Specification Heading H1K. In a method of manufacturing a semiconductor device such as a thermoelectric assembly or a temperature-sensitive resistor, a metal part having at least its contact surface of copper, silver, or of an alloy of copper and/or silver is brought into contact with a semiconductor mass of bismuth telluride, or with a mass of mixed crystal material containing bismuth telluride, at a temperature lower than the melting temperature of the contact surface of the metal part but sufficiently high that at least the part of the semi-conductor mass adjacent the contact surface becomes liquid and reacts with the metal part to form on cooling a mechanical and electrical connection between the part and the body formed by the mass In the semi-conductor material bismuth may be partly replaced by antimony, and tellurium by sulphur and/or selenium. The metal part may consist wholly of one of the above mentioned materials or those materials may be present as a surface layer (produced for example electrolytically, or by rolling) on bodies consisting of materials such as ion, aluminium, or aluminium alloys The method may be carried out in an inert or reducing atmosphere and additionally or alternatively oxide-dissolving fluxes such as borax or acid sodium ammonium phosphate may be applied to the contact surfaces. To join the metal part to the mass either the mass is cast in a mould in contact with the part so that connection is established simultaneously with the casting operation, or the heated metal part is held against a preformed semi-conductor body so that a thin layer of the latter adjacent the contact surface melts, after which the assembly is cooled. In the particular embodiments a heated strip of copper or of a copper-nickel-zinc alloy is coated with a borax flux and held against adjacent preformed bismuth telluride elements which are separated by a mica spacer. An N-type element consists of 80% wt. bismuth telluride and 20% wt. bismuth selenide, and a P-type element consists of 40% wt. of bismuth telluride and 60% wt. antimony telluride. A plurality of pre-formed elements may be connected simultaneously by placing them in a jig together with the necessary metal parts, and then heating the latter by placing one or more heated structures against them.
Patent GB-861545-A (GB)
Title: Shoe heel
Inventor: BICHL SEPP
IPC: A43B21/00
Filed: 1957-10-09
Abstract: 861,545. Heels. PLAST ANSTALT. Oct. 9, 1957, No. 13367/60. Divided out of 861,544. Class 17(2) A shoe heel is formed by wrapping a wooden heel blank 1 over its entire height with a band of glass silk 2 saturated with self setting synthetic resin and allowing or causing the resin to set in a mould. The heel may be reinforced by a metal spring 3, as shown,or by a metal dowel or tube.
Patent GB-759361-A (GB)
Title: An apparatus for applying adhesive tape to a flat article
IPC: B65B13/16
Filed: 1953-05-13
Abstract: 759,361. Edge binding machines. KOENIG, C. May 13, 1953 [Oct. 20, 1952], No. 13395/53. Class 73 The machine described in Specification 759,360 for applying a carrier strip to the edge of a flat article, e.g. a drawing, is adapted for applying adhesive tape 2<SP>1</SP> flat along or near the edge of the article 1 as shown in Figs. 9 and 11. The carrier strip on the spool 39, Fig. 14 is replaced by a roll of adhesive tape 2<SP>1</SP> and the folding member which was used for folding adhesive tape around the edge of the article and carrier strip is replaced by a guide member 60, Fig. 17 for guiding the tape 2<SP>1</SP> flat on to the edge of the article. Alternatively the machine may be provided with a guide member 60 in addition to the folding member which is swung into an inoperative position when tape 2<SP>1</SP> is applied.
Patent GB-251118-A (GB)
Title: Improvements relating to oil stoves
IPC: F24C13/00
Filed: 1925-05-22
Abstract: 251,118. Highfield, J. S. May 22, 1925. Oil cooking-stoves.-A cooking stove heated by oil-fuel spray burners comprises one or more ovens 4, 6 and a hot-water tank 5 supported on hot-plates 3 heated by one or more burners 15. together with a second hot-plate 17 for utensils heated by burners 22. In the stove shown, which is particularly intended for use on board ship, the hot-plates, which are formed in sections of cast-iron, are supported on an angle-iron framework, the rear members of which may be secured to a bulk-head. The front hot-plate 17 is at a lower level than the hot-plate 3. Bent strips 11 attached to a longitudinal bar 12 support the fuelpipe 10, a similar arrangement being employed for supporting the fuel-pipe of the lower hotplate.
Patent GB-252729-A (GB)
Title: Improvements in or relating to means for compensating the forces in voltage regulators
IPC: H02P9/22
Filed: 1926-05-27
Abstract: 252,729. Naamlooze Vennootschap Machinerieen en Apparaten Fabrieken. May 27, 1925, [Convention date]. Regulation, automatic.- In an electromagnetically operated carbon-pile resistance regulator one of the three forces exerted by the magnet, carbon pile and controlling spring is balanced against the others in all positions of the movable member by means which automatically adjust the distance between the line of action of that force and the point of rotation of the movable member. A flexible tension member F is attached at one end to the controlling spring C and at the other to a curved element E secured to the moving armature B. A similar compensating device may be used to transmit the reaction of the pile D or the force of the magnet A to the armature. In place of a continuous. curve the tension member may engage a series of points and these may be adjustable. According to the Specification as open to inspection under Sect. 91 (3) (a), a pressure member may replace the tension member. This subject-matter does not appear in the Specification as accepted.
Patent GB-353954-A (GB)
Title: Improvements in or relating to talking picture mechanism
IPC: G03B31/00
Filed: 1930-05-01
Abstract: 353,954. Gramophones associated with kinematographs. DAY, H. L. V. and DAY, E. H., 19, Lisle Street, London. May 1, 1930, No. 13463. [Class 40 (ii).] An electric motor 1 which drives a gramophone turntable 4 through a change-speed gear box 8 drives a kinematograph apparatus through a differential gear 13 and flexible shaft 25, the arrangement being such that synchronism in the drives is obtained by adjusting the planetary pinions of the differential gear by means of an auxiliary motor 23 which is under the control of a reversing switch 28. The main motor 1, which is shunt wound and under the control of a starting switch 27, has an auxiliary field coil 51 preferably controlled from the same reversing switch to compensate for changes in load when the auxiliary motor is operating. The auxiliary motor is series wound and its armature 47 and field coil 46 are, together with the coil 51, connected as shown in Fig. 2 to the arms 30 .. 34 of the reversing switch the mains 48, 49 being connected with the switch at the points shown. The switch arms, connected by insulated bars 35, 36, Fig. 5, so as to rock together about a pivot 29 against the action of springs are provided with buttons 37, 38 one or the other of which is pressed to operate the auxiliary motor in the desired direction.
Patent GB-740969-A (GB)
Title: Apparatus for method for float and sink mineral separation
IPC: B03B5/44
Filed: 1952-05-27
Abstract: A method of cleaning the medium circulating in a sink-and-float bath circuit consists in withdrawing from the circuit some of the medium in addition to that discharged with the sink-and-float solids, passing the withdrawn medium directly through a magnetic separating zone, and returning it directly to the circuit.  The apparatus disclosed is substantially that disclosed in Specification 740,965 with the addition of a medium bleed from the lower end of the separating vessel, part of the bleed being fed to the sump directly, and the remainder supplied with the lean rinsings to the magnetic separator.  A constant head-tank is also provided to give a better control of the spray water head.  The bleed-off has density-measuring means incorporated.