baber/WOPTO huggingface dataset:
Patent GB-1536024-A (GB)
Title: Analogue to digital converting device
IPC: H03M1/00
Filed: 1976-01-21
Abstract: 1536024 Analogue to digital conversion NIPPON HOSO KYOKAI 21 Jan 1976 [23 Jan 1975] 02403/76 Heading H3H In a cascaded a-d converter wherein each stage produces a plurality of bits the level of the analogue signal supplied to following stages is offset by an amount equivalent to a least significant preceding bit and the following stage converter supplies either a carry or not carry signal to a digital adder 7 or alternatively a borrow or not borrow signal to digital subtractor 7, the digital signal from which is later combined with the output from succeeding stages.
Patent GB-875374-A (GB)
Title: Apparatus for generating a clock pulse train from an information representing electrical wave and for reading out information stored on a magnetic storage medium
Filed: 1958-01-24
Abstract: 875,374. Digital data-storage apparatus. INTERNATIONAL COMPUTERS & TABULATORS Ltd. Jan. 24, 1958 [Jan. 28, 1957], No. 2420/58. Class 106 (1). Apparatus for generating a clock pulse train from an information representing electrical wave having true polarity cross-overs at some or all of a series of regularly recurrent instants (a true polarity cross-over being one after which the polarity remains unchanged for a time at least equal to the recurrence period of said instants) comprises means for generating a clock pulse in response to the occurrence of each true polarity cross-over, means responsive to the generation of a clock pulse to produce a further clock pulse after an interval equal to the recurrence period of said instants and means responsive to the occurrence of a true polarity cross-over to prevent the production of a further clock pulse in response to the last preceding clock pulse. As described data, Fig. 5 (A), is read from a drum Fig. 1 (not shown), amplified and shaped to give outputs Figs. 5 (C), 5 (D) from which cross-over pulses Figs. 5 (E), 5 (F) are formed which are mixed and delayed by 1 bit periods, Fig. 5 (G), and then processed to produce correctly timed pulses (Fig. 5 (J), not shown) occurring exactly at times 1, 2, 3, 4, &c., the processing being such that (a) cross-over pulses produced from spurious cross-overs, such as those occurring between times 13 and 16, are rejected, (b) the remaining cross-over pulses produced from genuine cross-overs are delayed a further  bit period to bring them to the times 1, 2, 3, 4, &c., and (c) any time 1, 2, 3, 4, &c. then without a clock pulse is given one by delaying the immediately preceding pulse by one or more bit periods. Spurious cross-over pulses are separated from genuine cross-over pulses by means of a two-stage register comprising flip-flops FF5, FF6, Fig. 4, through which data read from the drum is stepped, and whose state is examined by gates G15, G16. If the flip-flop register stores 0, 1 or 1, 0 then gate G15 or G16 will set a flip-flop FF7 thereby opening a gate G1 and allowing the next delayed cross-over pulse, Fig. 5 (G), to enter a 1 bit delay line, which, with a gate G2 forms a recirculatory clockpulse store from which clock-pulses are taken at a  bit tapping. If the register stores 0, 0 or 1, 1, gates G15 and G16 both remain closed, flip-flop FF7 is not set, having been reset by the last clock-pulse, and any crossover pulse (which will of course be spurious) is blocked at gate G1. Thus, only genuine cross-over pulses enter the delay line to provide clock-pulses with which to interpret data from the drum taken from flip-flop FF6 via a gate G3. In the particular embodiment described data is not read-out until a block start signal, comprising a train of 16 alternate ones and zeros followed by two ones and a zero, is read. When this is recognized (Figs. 2 and 3, not shown), gate G3 is opened. Specification 836,360 is referred to.
Patent GB-489629-A (GB)
Title: Improvements in or relating to the preparation of magnesium
IPC: C22B26/22
Filed: 1937-01-28
Abstract: Magnesium is produced by reducing with calcium carbide a mixture of a magnesium halide with a halide of potassium or sodium or both. Preferably the starting material is a chlorine compound of the metals such as carnallite (usually associated with sodium chloride) and the magnesium, sodium, and potassium are separated by distillation, sodium or potassium chlorides or both being added if it is desired to produce a sodium-potassium alloy liquid at room temperatures.  The reaction may be carried out in a retort, as described in Specification 444,957, heated in an electric furnace, and, if desired, under reduced pressure.
Patent GB-310449-A (GB)
Title: Improvements in and relating to the internal lining or coating of hollow bodies, such as tubes and the like
IPC: B05B13/06
Filed: 1928-01-26
Abstract: 310,449. British Mannesmann Tube Co., Ltd., and Weiser, R. F. Jan. 26, 1928. Drawings to Specification. Metal pipes and tubes.-Pipes, tubes &c. are lined or coated internally with bitumen, pitch, asphalt or like material, for instance with the coating-composition described in Specification 295,267.
Patent GB-144606-A (GB)
Title: Improvements in or relating to studs for stud-and-socket fasteners
IPC: F16B39/32
Filed: 1920-01-27
Abstract: 144,606. Carr Fastener Co., (Assignees of Carr, M. F.). June 11, 1919, [Convention date]. Press-button fasteners. - A stud for stud - and - socket fasteners is provided with a slotted cap portion on the slotted head of the screw stud for engagement with the spring in the socket. The cap is provided with a rim 9 surrounding a central grooved disk 10 and is held on the stud-head 6 by a flange 12.
Patent GB-663272-A (GB)
Title: Calculating machines and similar accounting machines
Inventor: TOWNSEND PERCIVAL JOHN
IPC: B41J11/24
Filed: 1949-01-31
Abstract: 663,272. Typewriters &c. NATIONAL CASH REGISTER CO. Jan. 5, 1950 [Jan. 31, 1949], No. 2640/49. Class 100 (iv). [Also in Groups XIX and XXIV] Line-spacing mechanism.-Means are described for rendering the linespacing mechanism of a calculating machine having a record-material carriage which is shuttled between two columnar positions (see Group XIX), ineffective during alternate machine operations. When the shuttling mechanism is rendered inoperative, the linespacing mechanism is effective during each machine operation. The linespacing mechanism (not described) is operated by a bail 6 engaged by a roller on a lever 53 which, when line-spacing is to take place, is rocked positively by a cam 54 during the return stroke of an oscillating cam-shaft 4. When the carriage moves to the left, a bar 15 carried thereby engages one of a pair of studs 47 in a slide 43 to move the latter leftwards. The slide 43 carries an arm 49 having a stud 50 engaged in a notch in a slide 44. This slide is thus moved to place a finger 52 beneath the lever 53 to prevent it from rocking to operate the line-spacing mechanism. When a handlever 39 is depressed to prevent operation of the carriage shifting mechanism, a slide 38 is raised and a cam surface 51 thereon rocks the arm 49 to uncouple the slide 44 from the slide 43. Whatever the carriage position, the slide 44 and its blocking finger 52 are then held inoperative by a spring 168, so that line-spacing occurs during each operation.
Patent GB-899270-A (GB)
Title: Control of passenger service vehicles
Inventor: PILKINGTON VICTOR WALTER
IPC: B60T11/10
Filed: 1959-01-26
Abstract: 899,270. Controlling vehicles. LEYLAND MOTORS Ltd. Jan. 22, 1960 [Jan. 26, 1959], No. 2766/59. Class 79(5). In a passenger vehicle, e.g. a city bus, the operation of opening the door is controlled from the change-speed-gear lever. The parking brake may also be operated from the change-speed-gear lever. As shown in Fig. 1, the gear lever gate 3 has the positions 1, 2, 3, 4 for forward gears and the positions D and R, the latter being for reverse gear, the gears being pneumatically controlled as described in Specification 740,459. The door is normally held closed by a pneumatic motor 10, the differential piston 13 of which is held in the left hand (closed) position by pressure from a reservoir 5 through pipe 14. When the gear lever is moved to the position D, the pneumatic pressure from reservoir 5 is admitted to the left hand side of the piston 13 through pipe 6 and the door is opened. A manually operated valve for isolating the motor allows the doors to be opened manually. The parking brake may be actuated through a rod 18 and handbrake lever 19, or through pneumatic motor 20 and link 17, air being admitted to the motor through pipe 15 when the lever is in position D. The brake actuation may be alternative or in addition to the door control. According to Fig. 2, the gear changes are selected by electrical means and the door control mechanism is also electric, being included in the circuit between earth, the leads 25, 26 and the battery 24. As shown, the door is held in the closed position. When moved to the position D, the gear lever closes a contact 22 exciting a relay 23 which interrupts a contact 27 and closes a contact 28 thereby connecting lead 26 to the battery 24 to open the door. Alternatively or in addition, closing of the contact 28 may energize a relay 31 to operate a valve 29 by which air under pressure may be supplied to a pneumatic brake operating motor 20. When the gears are pneumatically operated and the door electrically controlled, movement of the gear lever to the position D admits air under pressure to a motor 33 which actuates a switch 34 in the door control mechanism. Mechanism responding to a gear lever is disposed upon the steering column and alternative forms of valves in the pneumatic circuits are described.
Patent GB-382491-A (GB)
Title: Improvements in or relating to compound safety glass sheets or plates
IPC: B32B17/10
Filed: 1932-01-29
Abstract: 382,491. Compound glass. TALBOT, J., 8, Mayfair Avenue, Ilford, Essex, and BOWIE, F., 14, Tresco Road, Nunhead, London. Jan. 29, 1932, No. 2774. [Class 140.] Compound glass is made by assembling sheets of cellulose acetate between cleaned sheets of glass in a bath containing alcohol, benzol, acetone, ethyl acetate, diacetone alcohol, tetrachlorethane and gum elemi, removing the assembly from the bath, draining and pressing for example at a pressure of 12 tons per square inch and at a temperature of 135-140‹ F.
Patent GB-575517-A (GB)
Title: Improvements in or relating to materials for obtaining colour indications of the levels of liquids, stored dry or over water, by means of temporary coatings on dipping-rods
IPC: G01F23/04
Filed: 1944-02-16
Abstract: A dipstick for indicating liquid depths is temporarily coated with a paste which indicates by contrasting colours the surface level of the liquid or the separating surface between two immiscible liquids.  The coating consists of dyes, thickening agents such as cellulose acetate, vinyl and acrylate polymers, and inert solvents of low volatility and freezing point such as triacetin, diacetin, ethyl lactate, ethyl hydroxybutyrate, glycol esters and carbitols.  For a single liquid, the paste may contain a single dye soluble in the liquid, or a mixture with a second dye insoluble in the liquid.  For two immiscible liquids, a single dye soluble in either liquid alone may be used, or it may be mixed with another dye insoluble in that liquid.  For these purposes and also for two immiscible liquids with an air space above, at least two contrasting dyes are used, one soluble in the upper liquid. If the other is similarly soluble, at least one must be insoluble in the lower liquid.  An example of a paste containing triacetin, cellulose acetate, spirit red III, and acronal brilliant lake blue is given.
Patent GB-111598-A (GB)
Title: Improvements in Drum Brakes with Internal Shoes.
Inventor: STEPHENS RICHARD
IPC: F16D65/42
Filed: 1917-02-27
Abstract: 111,598. Stephens, R. Feb. 27, 1917. Blocks and the like acting on drums; compensating for wear.-Relates to drum brakes with expanding internal shoes of the kind in which wear is compensated for by adjusting the shoes by a screw and wedge mechanism without detaching the rotating rim or wheel 12 fitted with the shoes. According to the invention, the movement of the brake-shoes 2, 3 to compensate for wear is effected by a wedge-shaped block 1 disposed near the periphery of the brake-shoes and adapted to be moved transversely of the fixed casing 8 by means of a pin 4, screw-threaded to engage the. boss 5 of the casing and having a projecting end 4a by which it is rotated from the exterior of the casing. The block 1 is formed on its engaging faces with a fillet 6 and flat portions 7 which co-operate with similarly shaped faces on the shoes. A nut 9 and lock-nut 9<a> serve to hold the pin in any adjusted position. In modifications, the block 1 is formed integrally with the pin 4 in the form of a conical head to the pin, or the block may be in the form of a cone loosely mounted on the pin. In order to prevent " traversing " movement of the shoes and rotation of the adjusting-block 1 when the operating-cam 10 of the brake is actuated, the block has an arm 15 extending between the shoes 2, 3, or the flat faces 7 may be adapted to serve for the purpose. In other constructions, the " traversing " movement is prevented by arranging the arm 15 to slide on one stud or between two studs fixed to the casing 8, or the shoes 2, 3 may have co-operating tongues and recesses, or the block 1 may be arranged to actuate arms pivoted to the casing 8 and having their free ends located between the block and the shoes.
Patent GB-310772-A (GB)
Title: Improvements in gauging devices for use with scribing blocks and the like
Filed: 1928-01-30
Abstract: 310,772. Grant, J. H. Jan. 30, 1928. Linear-dimension gauges.-Relates to a moving feeler operated indicating device for clamping to a scribing block &c. of the kind described in Specification 23947/11 and comprises a rigid bracket member a adapted for connecting with the clamping screws, and a feeler lever h pivoted on said bracket, the lever engaging the contact plunger i at one end and having an hardened ball end k for engaging the work j, thus enabling the device to be used for borings, &c. not accessible to the plunger. The bracket a is L-shaped and is perforated at one end for engagement with the screws b of the clamping saddle c which secures the device to the scriber e.
Patent GB-411588-A (GB)
Title: Improvements in and relating to electric control systems employing electric discharge devices
IPC: G05F1/34
Filed: 1933-01-30
Abstract: 411,588. Control system for consuming devices; rectifying. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Jan. 30, 1933, No. 2889. Convention date, Jan. 30, 1932. [Classes 38 (ii) and 38 (iv).] In a control system employing grid controlled discharge devices 14, 15 the grid voltages comprise the vector sum of three voltages derived respectively from a transformer 33 the primary of which is connected directly across the supply, a transformer 34 the primary of which is connected across the supply through a resistance 36, and means such as an induction regulator 11 for supplying a voltage in phase with the supply which may be varied in magnitude and direction. In the arrangement shown the current through the saturating winding of a choke 25 is controlled to periodically dim lamps 10 used for decorative lighting the induction regulator 11 being rotated by means of a motor 12.
Patent GB-262982-A (GB)
Title: Improvements in or relating to concrete mixing machines
IPC: B28C7/02
Filed: 1926-02-01
Abstract: 262,982. Jaeger, G. Feb. 1, 1926. Rotary mixers.-A concrete mixing machine of the rotary tilting drum type is provided with means for operating a signal after a predetermined number of rotations. A worm gear is thrown into gear by the operation of the charging hopper and is actuated by the rotation of the drum till an arm carried by the gear releases a catch to disengage the gear, an electric alarm circuit being simultaneously closed. The worm 24<a> is mounted on a shaft 24 which is operated from the drum and carries a block 28 fitted with a cross pin 29 engagable by a spring-influenced catch 22 when the worm shaft is raised; this is effected by a cam 37 on a spring-controlled rod 32 moved longitudinally by the loading hopper. The worm wheel 19 carries an arm 21, which, on rotation, engages an insulated pin 23 to close the alarm circuit and move the catch 22 to release the worm shaft. The worm wheel then returns under spring influence to an initial position determined by the position of an adjustable pin 41.
Patent GB-560561-A (GB)
Title: Improvements relating to chucks
IPC: B23Q3/06
Filed: 1943-02-22
Abstract: 560,561. Indexing-chucks. BENTON & STONE, Ltd., and MILNER, C. E. Feb. 22, 1943, No. 2898. [Class 83 (iii)] An indexing-chuck for use on milling and other machines comprises a hollow body b with cover a attached by screw c. A hollow spindle h has a flange i fitting in the cover a and has clamped to it -a ring m resting on a seating n on the cover. A ball bearing k is located between the flange i and a flange j on the cover. An annulus o secured to the cover is notched to receive an index bolt r operated by a trigger s located in a handle u carried by the ring m. Slidable in the spindle - h is a sleeve z with a stem by which it is secured to a fluid pressure piston f returned by springs g. Supported on a ball race 2 within the sleeve z is a further sleeve w serving to actuate a bevel closing collet v retained in the spindle by a flanged screwed ring. Cooling tools and work.-The cover a also supports a trough 3 for catching and delivering at 4 coolant used in the operation. Pressure fluid may also be admitted above the piston for passage at 6 to the collet to blow out cuttings.
Patent GB-264664-A (GB)
Title: Improvements in and relating to wire mattresses
IPC: A47C31/04
Filed: 1926-02-02
Abstract: 264,664. Roth, C. H. Feb. 2, 1926. Mattresses. - Cords or cables constituting a spring surface are attached to opposite frame members by plates A with upstanding semicircular rims B which receive the cord. The plates are secured to wooden frames by projecting prongs, which can be driven into the frame, and to angle iron frames by an extended lug K which is bent to hook around the web of the angle J. The cord or cable H is preferably in a continuous length.
Patent GB-735247-A (GB)
Title: Improvements in or relating to looms for weaving
Inventor: WARREN FREDERICK WILLIAM
IPC: D03D49/36
Filed: 1953-02-03
Abstract: Loom picking motion components are made from 100 parts by weight of natural rubber, 15 parts butyl rubber, 65 parts sulphur, 40 parts clay, 12 parts pitch, 7 parts mineral oil, and 6 parts lime, with or without a reinforcement of fabric.  Specification 735,246, [Group IX], is referred to.
Patent GB-1160218-A (GB)
Title: Substituted 10-Aminoalkylanthracenes
IPC: C07D295/06
Filed: 1967-02-08
Abstract: 1,160,218. Anthracene derivatives. SMITH KLINE & FRENCH LABORATORIES. 8 Feb., 1967 [14 Feb., 1966], No. 2991/69. Divided out of 1,160,217. Heading C2C. Novel compounds of formula wherein R is H or C 1-4 -alkyl, Y is halogen, C 1-4 - alkyl, CF 3 , alkylthio, CN or dimethylsulphamoyl, A is C 2-4  alkylene and Z is amino or mono- or di-C 1-4 -alkylamino or a monocyclic heterocyclic amino group containing 4-12 carbon atoms, such as morpholino, thiomorpholino, pyrrolidino, piperidino, or piperazino, or piperazino substituted in the 4-position by C 1-4  alkyl, hydroxy-C 1-4 -alkyl, #-acetoxy-C 1-4 -alkyl, or #-hydroxy-alkoxy-C 1-4 -alkyl, and acid addition salts thereof are prepared by reaction of a compound of Formula II or a 9-alkyl derivative thereof with the compound HZ optionally followed by salt formation and/or modification of any 4-piperazine substituent. Compounds of Formula II above are prepared by action of HBr on compounds of Formula III which are themselves prepared by action of CH 3 OAMg Halogen on a compound of Formula IV Compounds of Formula IV are prepared, for example, as follows for 2-trifluoromethyl-10- anthrone which is prepared by reaction of phenyl magnesium bromide with 2-bromo-4- trifluoromethylbenzonitrile to give 2-bromo-4- trifluoromethyl-diphenyl-methane which is reduced to yield 2-bromo-4-trifluoromethyl-diphenylmethane which is reacted first with Mg then with CO 2  to give 2-benzyl-5-trifluoromethylbenzoic acid which is cyclized to give the required anthrone. 9-Alkyl substituted compounds of Formula II above are prepared, for example, by action of HBr on a compound of Formula V which is prepared by action of CH 3 O-A-Mg-halogen on a nitrile of Formula VI Nitriles of Formula VI above are prepared. for example, as follows for 2-(α-methylbenzyl)-5- trifluoromethylbenzonitrile which is prepared by reaction of trimethylsulfoxonium iodide and a strong alkali with 2-bromo-4-trifluoromethylbenzophenone to give 1-phenyl-1-(2-bromo-4- trifluoromethylphenyl)-ethylene oxide which is reduced with a bimetal hydride to give α- phenyl - α - (2 - bromo - 4 - trifluoromethylphenyl)-ethanol which on action of P/Hl gives 2 - (α - methylbenzyl) - 5 - trifluoromethyl - bromobenzene which with cuprous cyanide gives the required nitrile.
Patent GB-786512-A (GB)
Title: Improvements in or relating to machines for grinding lenses
IPC: B24B9/14
Filed: 1955-02-01
Abstract: 786,512. Grinding lenses. RODWAY, Ltd., G., LONDON OPTICAL CO., Ltd., SCHAFFLER, W. L., and OSBORNE, A. S. W. E. May 1, 1956 [Feb. 1, 1955], No. 3002/55. Class 60. A machine for grinding the edge of a spectacle lens comprises a lens carrier 14 and shaping cam 16 mounted on a shaft 17 disposed parallel to the shaft of a grinding wheel 10 in a rocking frame 11 which is mounted to rock in bearings 12 about an axis parallel to these shafts and loaded to urge a lens in the carrier 14 into contact with the grinding wheel 10 and the cam 16 towards a follower plate 32 arranged to operate a limit switch 26 controlling the circuit of a motor 21 driving the shaft 17 ; the plate 32 is mounted with slight freedom of movement towards and from the grinding wheel and so cooperates with the switch that the latter is closed at a point in the forward movement of the plate and opened at the same point in the return movement of the plate. The grinding wheel 10 is rotated by a motor 22 and reciprocated along its axis, the shaft 17 is driven by the motor 21 through gearing 18 and a clutch 19, the rocking frame 11 is urged towards the grinding wheel by a counterweight 13, and the lens carrier 14 is fitted with two lenses 15. The switch 26 and plate 32 are mounted on a pillar 24 which is adjustable transversely of the shaft 17, the switch 26 being fixed directly on the pillar and the plate 32 being attached to a plate 27, Fig. 3, arranged to rock about an axis 28 parallel to the shaft 17. At the start of the operation, the spring-urged plunger 31 of the switch is unaffected by the plate 32 so that the switch is open and the motor 21 does not drive the shaft 17. The gradual approach of the rocking frame 11 under the action of the counterweight 13 towards the grinding wheel as the latter grinds the edges of the stationary lenses 15 results in the cam 16 eventually contacting the plate 32 and then swinging it so as to close the switch whereby the motor 21 starts to drive the shaft 17 and rotate the lenses. As new parts of the edges of the lenses contact the grinding wheel, the rocking frame is urged away from the grinding wheel so as to withdraw the cam 16 from the plate 32 and the latter from the switch 26 which then opens to stop the motor 21. The cycle consisting of intermittent operation of the motor 21 continues until the whole of the edges of the lenses are ground. A stop is mounted on the pillar 24 in order to limit the extent to which the plate 32 can swing towards the grinding wheel after the switch 26 has been closed, this limited movement being provided so that, after the edges of the lenses have been completely ground, they,can be polished in the machine without removing them from the carrier 15 ; the lenses then rotate without substantial variations in speed since generally the rocking frame then only swings to the limited extent permitted with the switch closed.