baber/WOPTO huggingface dataset:
Patent GB-1423904-A (GB)
Title: Cutting chain
IPC: E21C25/34
Filed: 1973-04-12
Abstract: 1423904 Mining machine cutter chains JEFFREY GALION Inc 12 April 1973 [12 April 1972] 17737/73 Heading E1F A mining machine cutter chain includes links having a bit-carrying portion which is raised from the body of the link and which has an oblique face bored to receive a bit; an opening communicating with the base of the bore to permit dust to escape. Fig. 8 shows a cylindrical bit 50 retained in a bore 58 by a snap ring 76 and a dust escape slot 66 is cut from the opposite side of the raised portion. In Fig. 12 a bit 52 having an enlarged head portion engages on a bevelled seat 84 and is held in place in bore 90 by an expandable collar 94; a laterally extending bore 108 allowing dust to escape. In the assembled chain shown in Fig. I two forms of bit carrying link 14, 16, having respectively centred and laterally offset raised portions are used in conjunctoin with plain links 12 and the links are joined by pins 110 inserted in bores 112.
Patent GB-417276-A (GB)
Title: Improvements in or relating to processes for the recovery of sulphur from sulphide ores
IPC: C01B17/06
Filed: 1933-06-21
Abstract: In the recovery of sulphur from sulphide ores by roasting and then reducing the sulphur dioxide formed by a carbonaceous reducing agent, the process is rendered cyclic and the concentration of the sulphur dioxide is controlled by using as the oxidising gas a mixture containing air and a predetermined amount of sulphur dioxide, the resultant gases being incompletely reduced so as to leave a proportion of sulphur dioxide after removal of the sulphur.  In the treatment of iron pyrites, a mixture containing about 11 to 12 per cent of sulphur dioxide and 5 to 6 per cent of oxygen is produced and this mixture with or without a reducing gas after cooling and removal of dust, is passed into contact with a mass of incandescent fuel arranged in a shallow bed, the conditions being such that 75 per cent of the sulphur dioxide is reduced.  The proportions of sulphur dioxide is and oxygen employed in the roasting operation are about 2 to 1. The products of reduction are treated for the removal of dust &c. after which they are cooled to remove sulphur or washed with water to remove the sulphur dioxide which is recovered by treating the solution with air, this mixture being used for the roasting step.
Patent GB-145636-A (GB)
Title: Improvements in universal joints
IPC: F16D3/16
Filed: 1920-06-30
Abstract: 145,636. Retterath, V. June 30, 1919, [Convention date]. Joints and connexions.-A universal joint for axles, shafts, artificial limbs, &c. comprises a spherical surface 5, Fig. 3, integral with the end of one member 1 and flanked by guide jaws 4. Between the jaws 4 project two parallel jaws 3 formed on the member 2, the inner faces of the jaws 3 being cupshaped to engage the spherical surface. The spherical surface 5 is formed by a rotating tool 6, Fig. 5, which is moved through an angle about the centre of the spherical surface and in a plane parallel to the guide jaws 4 and midway between them. The tool 6 is formed from a cylindrical steel bar by cutting out two diametrically-opposite quarter sectors and recessing the front face. The trailing edges 8 of the cutting edges 7 are chamfered.
Patent GB-1363400-A (GB)
Title: Collapsible tube assemblies
IPC: B65D35/10
Filed: 1973-05-02
Abstract: 1363400 Collapsible tubes COLGATEPALMOLIVE CO 2 May 1973 [2 May 1972] 17912/73 Heading B8D The end of a collapsible metallic, metal/non- metallic laminated, or plastics tube 11 is frictionally clamped between the shoulder portions 19 and 28 and the skirt portions 17 and 26 of inner and outer moulded plastics elements 15 and 16 of a tube head structure, the tube end being initially pushed over the inner element skirt and crimped down over the shoulder portion and then the outer element being forced over the tube end and inner element. The outer element has an externally-threaded nozzle portion 29 provided with an end flange 33 overlying the nozzle portion 21 of the inner element and a groove 30 snap-fastenably receiving a rib 30a on the inner element nozzle portion. The outer element is of polyethylene or polypropylene, and the inner element is of a plastics, such as polymerized urea formaldehyde or a specified nylon, which expands on contact with the aqueous contents of the tube thereby improving the head/tube end connection. In a modification Fig. 5 (not shown), the body is additionally clamped axially between an end flange 37 of the inner skirt portion and the edge of the outer skirt portion. In another modification, Fig. 6 (not shown), the outer element nozzle portion is omitted, the upper edge of its shoulder portion engaging a groove in the base of the inner element nozzle portion.
Patent GB-369098-A (GB)
Title: A machine for the manufacture or pressed mouth-piece plugs and for their insertion in cigarette tubes
IPC: A24C5/46
Filed: 1931-06-20
Abstract: 369,098. Making cigarette mouthpieces. LERNER, F., 28, Burgerspitalgasse, Vienna. June 20, 1931, No. 17915. [Class 130.] A mouthpiece plug is made from a strip of material 6 unwound from a horizontal bobbin 4 and cut by shears 23, the severed portion being pushed sideways by a slide 25 into a pressing device 28, in which the plug is formed by a sliding plunger 27. The plug is then pushed by a rammer 17 into a spoon 13 carried by a disc 14, a cigarette tube 15 being placed over the spoon at the same time from the opposite side. The next turn of the disc 14 brings the spoon 13 in question opposite a second rammer 17 which is connected at 18 to the rammer 12, and this rammer 17 ejects the plug from the spoon, while at the same time a stripper 19 attached to the rammer 17 removes the cigarette tube 15 from the spoon. The moulding cheeks 29, 30 of the pressing device are interchangeable for different shapes and sizes of cigarettes, and are so shaped that the cross section of the plug in the direction of pressing is less than the diameter of the spoon 13.
Patent GB-439835-A (GB)
Title: Process for the manufacture of resinous substances similar in composition and properties to lac
IPC: C09F1/00
Filed: 1934-06-16
Abstract: Resinous substances similar to lac are manufactured by subjecting the husk residues of oil bearing fruits or seeds, after the extraction of the oil, to hydrolysis by means of a weak organic base, preferably one which is also capable of acting as a solvent for the resinous substance, e.g. aniline, toluidine, xylidine or pyridine.  In an example, olive husks are ground and agitated with aniline at 105 DEG C., or the heated aniline is pumped through layers of the husks.  The resulting solution is filtered and washed and the aniline is removed by vacuum distillation.  The resin may be recovered from the still by means of water vapour, preferably after adding about 3 per cent of colophony.  Reference is also made to the use of aqueous alkalies for the hydrolysis, in which case a salt is formed from which the resin must be liberated by means of acid.
Patent GB-604765-A (GB)
Title: Improvements in aircraft trainers
IPC: F41G9/02
Filed: 1945-07-13
Abstract: 604,765. Warfare teaching. TOMLINS, F. C. (Western Electric Co., Inc.). July 13, 1945, No. 17944. [Class 119] A bomb-dropping training device operable under the control of a trainee in simulation of flight over a depicted objective such as an area of a map, comprises means controlled in the operation of the device by its normal adjustment by the trainee in simulation of flight to the bombing position as determined by the setting of a bomb-sight, for positioning an indicator in dependence of such adjustment to indicate the position where a released bomb would actually burst with respect to the objective. The apparatus, a part only of which appears in plan in the drawing, includes a map 19, which is placed over a transparent plate brightly illuminated from beneath. Above the illuminated map moves, in a direction and at a speed controlled by the trainee, a unit 45 containing an optical system whose function is to project an image of the small part of the map beneath it on to a horizontal translucent screen arranged above the map. This screen is viewed from above by the trainee through a sighting device. Referring to the drawing, the unit 45 is carried by arms 16, 17, of a system of arms which pivot at 5 on the table 2.4 carrying the transparent screen for the map. Two other arms 3, 4, carry a driving head 20, which carries a tractor wheel (not shown), the latter being oriented by the head by a chain 29 driven by a motor 31, and being rotated by a chain 22 which is driven by a sprocket 23 secured to the upper end of the pivot 5. The pivot 5 is driven by a motor 27, and this motor and the motor 31 are under the control of the trainee who by this means controls the apparent speed and direction of an aircraft over the target, his bearing being indicated to him on the translucent screen by the unit 45 which by the arms 16, 17, follows the movements of the bead 20 and by the chain 29 and an optical system within it produces on the screen an image which turns and moves exactly as would occur in practice. The links are extended to produce a movement of a slider over a potentiometer P1 and the rotational movement of a shaft 34 associated with a second potentiometer. These potentiometers, and the motors 27, 31, are arranged in a predicting circuit, Fig. 3 (not shown), which includes means for using the present coordinates of the bombing crafts position, its speed and height, its rate of change of direction of flight, direction and velocity of the wind, and the ballistics of the bomb to determine the point at which the bomb will hit and also its time of flight. Such means are utilized to illuminate a bright lamp also located beneath the map, this lamp being moved in accordance with the predicting mechanism and being illuminated at the predicted time after the actuation, by the trainee, of the bomb-release contact. U.S.A. Specification 2,366,603 is referred to.
Patent GB-289417-A (GB)
Title: Improvements relating to thermionic valves or electron discharge tubes
IPC: H01J19/44
Filed: 1927-07-06
Abstract: 289,417. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. April 27, 1927, [Convention date]. Vacuum tubes.-In order to prevent the deposition of a conducting cleaning-up material on a re-entrant stem or pinch 1, shields in the form of metal strips 6 are mounted so as to extend along and above each side of the leading-in wires so as to form an inverted U. The strips may be of nickel, the ends being secured to anode supports 4 by means of short extensions 7 at right angles.
Patent GB-279154-A (GB)
Title: Improvements in or relating to spring seats, mattresses and the like
IPC: A47C23/053
Filed: 1926-07-19
Abstract: 279,154. Slater, H. A. July 19, 1926. Spring surfaces. - A spring surface is constructed of vertical upholstery springs 1 arranged in rows the upper coils of the springs being intercoiled with the edges of bands 5 of wire fabric alternating with the rows of springs while the lower coils are connected to a continuous wire fabric surface 6 which may itself rest on a bed of upholstery springs 7.
Patent GB-558519-A (GB)
Title: Means for loading a cannon or the like
IPC: F41A9/34
Filed: 1939-06-21
Abstract: 558,519. Loading appliances for guns. ARMSTRONG WHITWORTH AIRCRAFT, Ltd., Sir W. G., and JOY, C. F. June 21, 1939, No. 18038. [Class 92 (i)] A gun is loaded from below by a container or cage which is charged with an ammunition drum and then moved upwardly from the charging position to a position in which the drum is in loading position on the gun, the upward movement being effected or assisted by power or balance means. In the form shown, a top rotary turret 11 for four guns 13 disposed amidships of an aeroplane carries a depending frame supporting on links 15 a cradle for 14 each gun which is charged, in the position shown in full lines, with an ammunition drum or magazine 16. By the action of power or balance means 17 the cradles are raised together to the position shown in chain lines to permit the drums to be attached to the feed openings underneath the guns. The drums are conveyed to the cradles by guide rails 19 arranged as described in Specification 558,521. The cradles may be supported by the fixed structure 12 and the guns brought to a predetermined loading position by training the turret.
Patent GB-503213-A (GB)
Title: Improvements in and relating to regulating apparatus
IPC: F01D17/26
Filed: 1937-06-29
Abstract: 503,213. Fluid-pressure servomotorcontrol systems. BRITISH THOMSONHOUSTON CO., Ltd. June 29, 1937; No. 18074. Void. Convention date, June 29, 1936. [Class 135] An automatic regulator has a spring-centralized dashpot q which lags behind the movement of a power piston g and is connected by a linkage r, s, e to the control valve f of the power piston so as to move the control valve after a regulating operation in the same direction as it was originally moved by the initial control impulse. As shown the regulator is utilized control the steam supply to a turbine according to the boiler pressure. The latter acts on a diaphragm a connected by a linkage b, c, d, e to a slide valve f guided in and controlling a spring-loaded power piston g. The piston rod l has two shoulders m against which a spring n presses plates o which also abut stops p in the dashpot piston q. The rod l is connected by a linkage t, u, v to a slide valve w. controlling a rotary motor. The latter adjusts the supply of motive fluid to the turbine and carries on its shaft a return motion cam X. An emergency governor z takes over the control in the case of excessive speed. The dashpot piston q is arranged in the same casing as the piston g and thus its cylinder receives oil exhausted from the power piston g. The regulator may alternatively be influenced by speed or temperature.
Patent GB-907451-A (GB)
Title: Improvements in or relating to data handling systems
Inventor: SUNDBLAD GUNNAR ERIKSSON
IPC: G06K5/00
Filed: 1959-05-27
Abstract: 907,451. Statistical sensing-apparatus. SVENSKA DATAREGISTER A.B. May 27, 1959, No. 18089/59. Class 106 (1). In a data-handling system coded signals from a record medium are sensed and checked for parity with the record, an error causing a stoppage of the machine with the incorrect signals displayed. The apparatus described comprises a film or tape reader wherein a tape 100, Fig. 1, containing coded digital signals in the form of contrasting marks, is fed past a light source 142 and its image is projected on to a system of photo-electric cells 128-138, whose output signals pass, via amplifiers 160, 164, to registers 150-154, where by employing check units 170-174 a parity check is conducted. If found correct the data passes to a data utilizing device 175. If the check reveals an error one or more of a column of lamps 180-184 is illuminated to indicate which group or groups of signals are in error, and a solenoid 124 releases the tape drive and operates a pinch brake 120a which stops the tape. The time lag between the detection of the error and the application of the brake allows the projected image to move from the photo-electric cell battery to an adjacent screen 140a, Fig. 2. Here the error is examined visually and is manually corrected by means of illuminated operating keys (190-194) lying adjacent to, and in horizontal alignment with, the image screen. When the signals have been thus corrected the solenoid 124 is released and the process continued. The tape 100 bears a number of characteristic fields 102, each comprising a start bit in position S (cf. keyboard 190), dark lines which represent binary numbers 1, 4, 8, 2, and a chock bit (in position C) which is present or absent accordingly as to make the total number of bits of each field even. Thus the field 102 (Fig. 2) represents the number 5 and possesses start and check bits. Each column of fields also possesses a further control mark 104 which clears the code storing registers 150-154 when passing a photocell 138a, and initiates the checking operation when passing a photo-cell 138b. A consequence of one or more of the photo-cells 128c-128f detecting a mark on the tape is a number of pulses which successively change the conducting state of associated flip-flops which operate the tape-stopping arrangement if an odd number of pulses are received by any of them. Specification 906,429 is referred to.
Patent GB-518865-A (GB)
Title: Improvements in or relating to the electrolytic deposition of zinc dust
IPC: C25C5/02
Filed: 1938-06-17
Abstract: 518,865. Electrodeposition of zinc dust. SIEMENS & HALSKE AKT.-GES. June 17, 1938, No. 18092. Convention date, June 18, 1937. Addition to 515,156. Drawings to Specification. [Class 41] [Also in Group III] In the electrodeposition of zinc dust, the fineness of the deposit is enhanced by simultaneous deposition of a proportion, e.g., 0.01 - 5 per cent., of tin, cadmium, copper or bismuth or a mixture thereof. The speed of reaction of zinc dust so produced when used as a catalyst is reduced. The metals may be introduced into the electrolyte which may consist of an alkaline solution of a zincate, by anodes separate from the zinc anodes and disposed close thereto. The anodes preferably consist of zinc strips and additional metal strips arranged in alternation in the same plane. Two such sets of strips may be arranged on either side of a row of bar-shaped cathodes. The current supplied to the additional metal anodes is smaller than that supplied to the zinc anodes e.g., about 0.01-0.5 per cent. thereof. These anode arrangements are also applicable when the metal co-deposited with zinc is lead, as in the parent Specification.
Patent GB-756894-A (GB)
Title: Improvements in or relating to fire resistant or insulating compositions and articles containing same
IPC: C08K3/00
Filed: 1954-06-21
Abstract: An aqueous dispersion comprises 12 to 52 per cent of an alkali metal silicate (in particular sodium or potassium silicate), 10 to 34 per cent of a rubbery copolymer of a butadiene and an acrylonitrile (preferably as a latex), 21 to 74 per cent of an insulating refractory and 70 to 500 per cent of water based on the combined weights of silicate and polymer.  An inorganic gasefying agent, e.g. sodium and/or potassium carbonates and/or bicarbonates may also be included.  The butadiene may be butadiene-1,3, isoprene, 1,4-or 2,3-dimethyl butadiene, 1,3-pentadiene, methyl pentadiene or mixtures and the acrylonitrile may be acrylonitrile, methyl, ethyl- or chloroacrylonitriles or mixtures. Other monomers which may be included in the rubber are styrene, chlorostyrene, methyl and ethyl acrylates and methacrylates, vinyl pyridine, methyl vinyl ketone, vinyl ethers and vinylidene chloride.  Refractories specified are diatomaceous earth, alumina, fire clay, magnesia, asbestos, slag, vermiculite and mixtures.  In preparing the composition, the rubber is added last to prevent coagulation.  The compositions may be applied to metal, glass, wood and ceramics and on drying give coatings which are unaffected by successive heating and cooling.
Patent GB-279166-A (GB)
Title: Improvements in and relating to milling cutters for helical or spiral and straight bevel gears
Inventor: WHEATLEY WALTER HARRY
IPC: B23F21/16
Filed: 1926-07-21
Abstract: 279,166. Wheatley, W. H. July 21, 1926. Milling-cutters.-In a rotary helical cutter for cutting the teeth of straight or spiral bevel gears and the like in a single continuous operation such as that described in Specification 214,738, [Class 83 (iii), Metals, Cutting], the teeth 10, Figs. 1 and 2, are arranged in a helical path with cutting edges 9 on each side, the cross sections of the teeth gradually diminishing in size from the centre of the helix towards the two ends thereof, and the pitch of the helix being equal to or less than the pitch at the smaller end of the bevel wheel. The teeth may extend completely round the cutter. In a method of making a cutter of this form, a master bevel wheel 11 of the form which the cutter is to be designed to produce is first cut on any suitable machine and the teeth of this wheel cross cut by staggered serrations and relieved to form cutting edges after which the master wheel is hardened and preferably finished by grinding. A cutter blank is then formed with a rough helix 14 corresponding to the small-end pitch of the gear to be cut and the helix is then cross cut to provide the required number, preferably an odd number, of teeth. The cutter and master wheel are then placed in cutting relation with the master wheel, Fig. 6, and the cutter and wheel rotated together at the required speed ratio while the cutter is fed slowly across the wheel face, its axis moving in a plane which is parallel to a plane tangential to the cone containing the bottoms of the wheel teeth. In this way the cutter is formed to the correct shape for generating wheels similar to the master wheel and the teeth are then relieved by specially shaped relieving cutters so that the correct shape is retained when the teeth are reground. If desired the cross cutting of the cutter teeth may be performed after the shaping of the helix. If the cutter is intended for cutting spiral teeth it is offset in relation to the master wheel as shown in Fig. 8, the master wheel preferably being of spiral form although a straight-toothed master wheel may also be used. The finished helix on the cutter may be further shaped to form a cutter of the type described in Specification 214,738.
Patent GB-473710-A (GB)
Title: Improvements in and relating to typographical slug casting machines
IPC: B41B11/38
Filed: 1936-07-01
Abstract: 473,710. Type-bar-making machines. MERGENTHALER LINOTYPE CO. July 1, 1936, No. 18257. Convention date, July 30, 1935. [Class 100 (iii)] Clamping matrices.-Relates to means for adjusting the position of the left-hand vicejaw to suit various lengths of line, which are applicable to machines adapted for quadding or centring. The vice-jaws A, B, Figs. 1 and 16, which are formed with bearing-parts A<1>, B<1> mounted to slide in the vice-cap, are operated for quadding by levers A<2>, B<2>, the lever A<2> being attached to a banking-block C<1>, to which the bearing-part A<1> of the left-hand jaw A is adjustably connected. A toothed rod D is attached at one end to the banking-block C<1>, and passes through the jaw and into a sleeve B<4>, which extends through the righthand jaw B, and is journalled in a fixed bracket F, in which it is held against endwise movement. The rod D has teeth on two opposite faces, the other two faces being flat. The jaw A has complementary teeth, and the rod can be turned to engage and disengage the teeth. The rod is turned by means of the sleeve B<4>, which has flat portions to engage the flat sides of the rod. When the teeth are disengaged, the jaw A can be adjusted on the rod D by means of a rod G, fixed at one end to the jaw, and, at the other, passing into a sleeve G\ which can slide and turn in the right-hand jaw B and in the bracket F. The sleeve has a flat key G<2>, Fig. 8, secured therein, and the rod D is flattened, so that it can slide through the sleeve. The rod is formed with a recess G', which fits the key G<2>, and, when the sleeve is turned to engage the recess with the key, endwise movement of the sleeve will carry the rod and the jaw with it. The sleeve is operated by means of a handle J, and, after the jaw has been adjusted, the sleeve is disengaged from the rod and is pushed back into the jaw B. The sleeves B<4>, G<1> are geared together, so that, when the sleeve G' is engaged with the rod G, the rod D is unlocked from the jaw A. A spring detent H<2> engages a longitudinal groove G<5> in the sleeve G<1>, to hold the sleeve in the disengaged position. Scales G<7> on the sleeve facilitate the adjustment of the jaw.