baber/WOPTO huggingface dataset:
Patent GB-1482271-A (GB)
Title: Roll forming machines
IPC: G01B7/28
Filed: 1974-07-11
Abstract: 1482271 Automatic control of metal bending BOEING CO 11 July 1974 [27 July 1973] 30787/74 Heading G3N [Also in Division B3] In the bending of sheet metal to required profiles by forming rolls, it is necessary for the rolls to impart greater curvature to the sheet than the required profile demands, in order to allow for the "spring-back" which occurs after the material leaves the forming station. The invention provides a program-controlled roll-forming machine in which the necessary spring-back compensation is automatically applied by means of signals derived from a sensor which measures the formed sheet's curvature in a plurality of planes. The control system, Figs. 1 and 8, governs the movements of one or more forming rolls 17 in response to digital commands from a tape input 217 which are modified by a manually-set rough multiplier 222 to correct for anticipated spring- back. The forming roll movements are related to curvature in two planes XY, XZ respectively corresponding to bend of the sheet longitudinally and transversely of its direction of feed through the machine. Twist of the sheet is also controlled, the two bend and one twist factors, in their roughcorrected form, being represented by parameters KY, KZ, Ka. A further corrective factor, derived from a comparison of the corresponding sensor outputs q 1 , r 1 , u 1  with desired values q o , r o , u o  in unit 213, results in a final set of precisely corrected control parameters kKY, kKZ, kKa as shown. In the curvature-sensing apparatus of Fig. 3, a support member 41 carries, through linkages 81 and 121, the multiplanar sensing assembly 33. The linkage 81 is such as to allow movement of the sensing assembly in a vertical plane but to prevent its rotation about the axis of work-piece feed. The linkage 121 and suspension means 171 co-operate to support the weight of the sensing assembly. The latter forms the subject of Specification 1482272.
Patent GB-1039632-A (GB)
Title: Treatment vessel having a strainer
IPC: D21D1/22
Filed: 1964-08-04
Abstract: Bars 30, (Fig. 2, not shown), parallel-sided but mutually divergent slightly, in an upward direction, form a frusto-conical filtering wall in a vessel for forming or treating pulp (see Division D2). Four such walls are arranged in series for upward flow of the pulp in the vessel, the outer wall of the vessel being so shaped that the outer periphery of the upper end of one filtering wall is coincident with the inner periphery of the lower end of the next filtering wall above it, providing a stepped formation with all the slots 32 open at their upper ends.  The slots 32 increase in width radially outwardly.
Patent GB-371324-A (GB)
Title: Improvements in an electrolyte for lead accumulators
IPC: H01M10/08
Filed: 1930-10-15
Abstract: 371,324. Galvanic batteries. WILLIMEK, G., Grudziadz, Poland. Oct. 15, 1930, No. 30906. Convention date, Oct. 15, 1929. Void [Published under Sect. 91 of the Acts]. [Class 53.] Electrolytes.-An electrolyte for an accumulator consists of a solution of chromic oxide, or chromic anhydride, and sodium, potassium or other sulphate. Sulphuric acid may be added to the solution. Other chromium compounds may also be used as electrolytes.
Patent GB-232889-A (GB)
Title: Improvements in banjos
IPC: G10D1/10
Filed: 1924-12-24
Abstract: 232,889. Lange, W. L. Dec. 24, 1924. Banjoes &c. - Sound passages are arranged above and below the frame with means to deflect the sound away from the performers body. A number of radial supports 12 notched to receive the vellum-supporting ring 13 are arranged round the top of the frame 10. A metal band 28, which may be flared at its lower edge, seats on the brackets 20, being retained by tension in the vellum, and completes the upper sound passage. The lower passage is formed by a resonator or deflector 34 which is frictionally attached to the back of the instrument, being held by the engagement of a tapered rebate 35 in the walls of the deflector with a perforated metal plate. 23 held between the brackets 20 and a shoulder 14 and ring 26 on the frame 10. The deflector may be shaped as shown in dotted lines at 39. The hooked straining-bolts 22 pass through the brackets 20 and plate 23, the nuts bearing against the brackets.
Patent GB-801046-A (GB)
Title: Piece of leather for shoe soles and heel-taps and a method of making it
IPC: A43B13/22
Filed: 1956-10-11
Abstract: 801.046. Soles and heels for footwear. SCHUHFABRIKEN ODERMATT & CO. A.G. Oct. 11, 1956 [Nov. 11, 1955], No. 30969/56. Drawings to Specification. Class 17(2) [Also in Groups VIII and XVI] Leather for shoe soles and heel taps is provided with a profile having successive projections and depressions therebetween, characterized in that the depressions are at least 1 mm. and preferably 2-3 mm. or more deep, rounded at the crest and at the trough and with inclined sides, by treatment in a stamping press, preferably after impregnation with a silicone resin. The profiling may be grooves running mainly transverse to the longitudinal axis of the sole, circular grooves or a net-like pattern.
Patent GB-861308-A (GB)
Title: Improvements in or relating to stepping electric motors
IPC: H01H67/12
Filed: 1958-09-29
Abstract: 861,308. Electromagnetic relays. TELEFUNKEN G.m.b.H. Sept. 29, 1958 [Oct. 1, 1957], No. 31023/58. Class 38 (5). [Also in Groups XXXV and XXXIX] A step-by-step motor comprises a stator 5 and rotor 8 having skewed co-operating teeth 10, 11 magnetically registered with each other by radial flux on energization of a coil 3, the rotor being axially movable by a separate electromagnet 20, 21, 22 before or after the energization of the coil 3 to produce rotation in one direction or the other. In one direction of rotation, the armature is drawn down by the electromagnet and is simultaneously turned through one pole pitch by the skewed teeth, and when released by the de-energization of the electromagnet, it is raised without rotation by a spring 9 acting on the shaft 6, and remains in this displaced angular position ready for the next step. Alternatively reverse rotation is obtained by energizing and de-energizing the electromagnet coil 22, and as the rotor rises under spring pressure energizing the other coil 3. On de-energization, one or more studs 14 selectively operate contacts in a bank 12. If desired, another contact set or a bank of contacts may be operated by the lower end of the spindle 6. As shown, the rotor 8 is solid and the skewed teeth are cast or milled, but various arrangements are described in which the teeth of both stator and rotor are twisted out of sheet material.
Patent GB-249611-A (GB)
Title: A new or improved emergency braking system for motor road vehicles
IPC: B60R19/26
Filed: 1924-12-30
Abstract: 249,611. Aves, H. Dec. 30, 1924. Obstruction - removers and safety appliances.-In an emergency braking system for motorvehicles of the type comprising a buffer bar 1 connected to slidable rods 2 which are adapted to rock a shaft 5 whereby the brakes are automatically applied when the bar 1 meets with an obstacle, the shaft 5 carries an arm 8 which is connected either to the brake pedal or to the usual foot brake operating rod 12 by means of a rod 10 and clamp 11, the latter having a slotted connection with the arm 10 to permit the foot brake to be applied independently of the emergency mechanism. A second arm 14 on the shaft 5 is connected bv a rod 16 and a pin and slot connection 17, 18 with the hand brake lever 19, so that the hand brake may also be applied independently as well as by the emergency mechanism. The rods 10, 16 are slidably mounted in bushes 9, 15 and carry springs 13, 20 which moderate the emergency brake action. Alternatively the rods may be in two parts connected by springs. As shown in Figs. 1 and 4, the end of each tubular rod 2 is engaged by a rod 31, and is separated by a disc 35 from a phosphor bronze or like sleeve 32 which carries a clamp 33 embracing the buffer bar 1, the latter being backed by a spring bar 3 secured to the chassis, so that an emergency brake application is effected against the resistance of the bar 3. Engagement of the disc 35 with the bar 3 limits the forward travel of the bar 1 and rods 2, the rear ends of which may also be engaged by rods adjustably secured to the rods 2 and connected to the shaft 5 by arms 4 carrying pins 6 which bear against pins 7 on the shaft. Alternatively the rods may carry racks engaging gear wheels on the shaft 5. When an emergency brake application takes place, the brakes are looked in the " on " position by the engagement of teeth on the lever 25 with a forked arm 21 mounted on the shaft 5, disengagement of the teeth being effected by a pedal 27 to allow the parts to return to normal position. The arm 21 may be arranged to make contact with a stop 22 whereby the low tension short circuit wire 23 from the engine magneto 24 is " earthed." In the case of battery ignition, the arm 21 may be arranged to break the battery circuit. A switch 23* may, however, be provided, whereby this action may be prevented. Specification 224,423 is referred to.
Patent GB-231923-A (GB)
Title: Improvements in sockets or holders for the thermionic valves of wireless systems and apparatus for telephony and telegraphy
IPC: H01R4/50
Filed: 1923-12-13
Abstract: 231,923. Woods, R. Dec. 13, 1923. Vacuum tubes. - A thermionic valve holder consists of a block of insulating material, such as vulcanite, with holes receiving the valve legs, and, for each hole; a contact member extending laterally through the block, the inner end of the contact or a part resiliently attached thereto being arranged to extend into the hole so as to make contact with the leg. As shown in Fig. 3 each contact consists of a tubular member 6 recessed to receive a steel ball 8, which is pressed outwards by a spring 7 and retained by a burr. The contacts are mounted in lateral holes in the block 1, Fig. 2 so that the balls project into the corresponding holes 5 for the legs. An enlarged head 11 on the contact has a milled periphery engaging with the block. Connection with a lead is made by means of a tag 10 secured by a screw 9. In a modification, each contact is screwed into the block, and is provided with a lock-nut and with a nut for securing a lead, or the lead may be soldered in an axial recess. The block may be used as a jig for making the position of the holes 14 on a panel 4, and the holes 14 may be enlarged so as to accommodate the lead wires soldered to the legs. According to the Provisional Specification, a telescopic contact may be used instead of a ball.
Patent GB-268288-A (GB)
Title: Motor system for a ferraris electricity meter
IPC: G01R11/36
Filed: 1926-12-10
Abstract: 268,288. Soc. Genevoise d'Instruments de Physique. March 29, 1926, [Convention date]. Induction motor meters. - The core of the pressure magnet is formed of two parts 1, 2, the horizontal portion of the part 1 on which the pressure winding 7 is situated being slotted so as to leave two parts 1<1>, 1<11>, Fig. 3. between which slides the upper horizontal bar of the part 2, which is reduced in thickness. The parts 1, 2 are held together by screws 15 screwing into a plate 16, the end of which is bent over at a rightangle, as shown. The screw holes in the parts 1, 2 are slightly elongated to permit adjustment of the gap 19 between the lower horizontal parts 3, 4 for adjusting the phase displacement, the adjustment being effected by inserting a screwdriver between the parts 1, 2 and the bent-over end of the plate 16. The upper horizontal tongue of the part 2 is deeper than the parts 1<1>, 1<11> between which it fits, so as to utilize the central aperture of the coil 7 to better advantage. The poles 5, 6 of the pressure magnet are close to the outer poles 8, 9 of the series magnet and cover about half of these poles and half of the air gap between them and the central pole 10. The outer surfaces of the poles 5, 6 are formed as arcs with the point 0 as centre, the inner surfaces being formed as arcs having either the same centre O or a centre a little higher on the vertical axis. On the poles 5, 6 slide rings 12, 12<1> carried by an arm pivoted at O. The simultaneous displacement of the rings 12, 12<1> causes the flux of one pole to become unsymmetrical with regard to the other, enabling adjustment for low loads to be effected. Fixed or adjustable short-circuit rings may be provided on the outer limbs 8, 9 of the series magnet in order to minimize errors due to frequency changes.
Patent GB-787293-A (GB)
Title: Epoxidized polycyclopentadienes
Filed: 1955-11-03
Abstract: Epoxidized polycyclopentadienes are prepared by reacting with an epoxidizing agent, under epoxidizing conditions, polycyclopentadienes consisting essentially of a mixture of trimers and tetramers and containing two double bonds per molecule, said reaction being carried out in a liquid medium so that the epoxidized polycyclopentadienes contain at least 2 per cent oxirane oxygen.  Suitable polycyclopentadienes may be prepared by heating the monomer or the dimer under reflux conditions (Diels-Alder polymerization) in such a way as to give a mixture consisting largely of the trimer and tetramer with minor amounts of pentamers or higher polymers.  In addition to cyclopentadiene itself, alkyl cyclopentadienes, such as the methyl, ethyl-, propyl or butylcyclopentadienes may be polymerized and subjected to epoxidation.  The epoxidation may be effected with organic peracids, such as peracetic acid.  Suitable solvents are liquid hydrocarbons and halogenated hydrocarbons, such as toluene, benzene, xylene, and chloroform.  The reaction may also be effected with an aqueous emulsion of the polycyclopentadiene. Detailed examples are given of the epoxidation of (1) polycyclopentadiene and (2) poly-methylcyclopentadiene with peracetic acid containing sodium acetate and dipicolinic acid as peracid stabilizer.  An example is also given of the preparation of polycyclopentadiene comprising refluxing dicyclopentadiene at 145-220 DEG  C. for 20 hours, and removing unreacted dimer by vacuum distillation at 1 mm. Hg. until the temperature reaches about 50 DEG C.  The product contains predominantly the trimer and tetramer with minor amounts of higher polymers.
Patent GB-808684-A (GB)
Title: Improvements connected with dynamic balancing machines
IPC: G01M1/06
Filed: 1956-10-17
Abstract: 808,684. Electric motors. AVERY Ltd., W. & T. Oct. 17, 1956 [Oct. 17, 1955], No. 31559/56. Class 35. [Also in Group XXXVIII] Apparatus for driving a rotor to determine its unbalance comprises a cradle 5 (Figs. 1, 2), for supporting the rotor 4, containing a series of axial coils 36 which are sequentially energized from a D.C. supply 37 through a rotary switch 32, thus producing a rotating magnetic field which causes the rotor to rotate at synchronous speed. The rotor 4 may be an assymmetrical magnetic workpiece, e.g. a crankshaft, or diametrically premagnetized if it is symmetrical. If the rotor is a commutated armature a shortcircuiting ring can be located round the commutator to turn the armature into a squirrelcage rotor, or a slip-ring may be connected with two commutator segments only, and fed with D.C. to produce a rotating magnetic field which coacts with the main rotating field to drive the rotor. Rotor unbalance is sensed by pick-offs 10, 11 and analysed by wattmeter-type instruments 44, 45 into horizontal and vertical components in the pick-off planes. A reference phase voltage is obtained from a coil 8 wound on a U-shaped core 22 whose gap is partially closed by the end of the rotor shaft, this end having a groove 14 which produces a pulse in coil 8 each time it passes by the ends of the core, the pulses being converted at 39 into sine and cosine voltages. The reference phase voltage may alternatively be derived from a sine-cosine voltage generator located on the same shaft as the rotary switch 32, or from a photo-cell scanning a mark on the rotating workpiece. Specification 756,168, [Group XXXVIII], is referred to.
Patent GB-613847-A (GB)
Title: Improvements in or relating to electric discharge lamps and circuits therefor
IPC: H01J61/54
Filed: 1945-11-23
Abstract: 613,847. Discharge lamps. COLE, Ltd., E. K., and HAEGELE, F. G. A. Nov. 23, 1945, No. 31564. [Class 39 (i)] A discharge lamp comprises cathodes a, each of which comprises a core of electrically conductive, highly porous, refractory material, having incorporated in it a thermionically active material, and two wires b, c interwound in spaced relation on the core, each wire making isolated points of contact with the core, one end of one wire being connected to one terminal of the lamp and one end of the other wire being connected to another terminal of the lamp at the same end thereof. Each wire b, c may be overwound with another wire d to make isolated points of contact with the core or the wires b, c may be provided with integral projections. The cores a may contain grooves to retain the wires b, c. One wire c on one core is connected to the other wire c on the other core by a current limiting resistance e or other impedance of a few thousand ohms. The remaining two wires b are connected to the A.C. mains supply in series with a stabilising impedance (for example a choke). An auxiliary electrode g in the form of a conducting metallic strip deposited on the tube wall and either connected to one wire b, c, directly or arranged in close spacial relationship therewith may be used for the dissipation of random wall charges which impede starting. When current is supplied to the circuit a multiplicity of small arcs occur between the rough cores a and the surrounding wires b, c, which serve to produce highly-activated hot spots acting as cathode spots for initiating the main discharge, the restarting peak at each half-cycle of the discharge being reduced, thus improving the power factor.
Patent GB-1060604-A (GB)
Title: A method of gasifying solid fuels
IPC: C10J1/207
Filed: 1963-08-09
Abstract: In a process for producing a combustible gas from a solid fuel the fuel is first gasified as a stationary bed in a pressure producer with a mixture of steam and oxygen-enriched air and the gas so obtained is subjected to the shift-reaction, the converted gas is cooled to an ambient temperature to obtain an aqueous condensate which is added to the gasification medium and/or used to saturate the hot gas from the pressure producer before the co-conversion, the composition of the gasification medium being controlled so that no aqueous effluent is produced in the process. CO2 may be washed out of the gas produced and methane added to obtain a town gas.  The aqueous condensate may be stripped of undesirable constituents by means of air or CO2 before being fed back into the process.
Patent GB-733315-A (GB)
Title: Improvements in or relating to lathe steadies
IPC: B23Q1/76
Filed: 1952-12-13
Abstract: 733,315. Lathe steady rests. MYFORD ENGINEERING CO., Ltd., and MOORE, J. March 3, 1954 [Dec. 13, 1952], No. 31638/52. Class 83 (3). A lathe steady rest of the type having one or more work-supporting plungers slidable in a bracket carried on the lathe saddle has each plunger B moved by an adjusting screw C, the head of which engages one of a series of spaced recesses E in the side of the plunger, the latter being turned about its axis when it is required to disengage it from the screw-head to move it longitudinally to another recess for a further range of adjustment. A flat F on the side of the plunger clears the screw-head and the plunger is prevented from turning or sliding after adjustment, by a locking screw G in the supporting bracket A at right angles to the plunger. One, two, or three plungers may be employed for supporting the work.
Patent GB-1034196-A (GB)
Title: Fluorocarbon ether-acids and derivatives thereof, and their preparation
IPC: C08G65/22
Filed: 1964-08-04
Abstract: The invention comprises compounds of the general formula <FORM:1034196/C2/1> wherein RF is fluorine or a C1-10 perfluoroalkyl radical, each X is fluorine or trifluoromethyl, Y and Y1 are each fluorine, amino, hydroxyl or a radical -OM where M is ammonium or an alkali metal, and n is a number from 0 to 12. Compounds in which both Y and Y1 are fluorine are prepared by the reaction <FORM:1034196/C2/2> These compounds, which are represented by the general formula F-SO2-A-CO-F wherein A is <FORM:1034196/C2/3> may be converted directly or indirectly to compounds of the invention wherein Y and/or Y1 are other than fluorine, the following general reactions being exemplified: <FORM:1034196/C2/4> Examples are given. The production of vinyl ethers by the reaction. <FORM:1034196/C2/5> wherein A1 is -CFRF-CF2-O-(-CFX-CF2-O-)n-is described.
Patent GB-1271502-A (GB)
Title: An improved method and apparatus for the treatment of filamentary material
Inventor: ZBRZEZNIAK JOSEF
IPC: B65H51/08
Filed: 1968-07-03
Abstract: 1,271,502. Tensioning thread. MORGANITE RESEARCH & DEVELOPMENT Ltd. 30 June, 1969 [3 July, 1968], No. 31685/69. Heading D1L. [Also in Division Cl] During the exposure of a thread of filamentary material to pyrolysis treatment in the production of carbonaceous filamentary material therefrom, the thread is held under longitudinal tension by passing it in spaced convolutions around three or more rollers journalled to a frame to form a cage, at least one of the rollers being rotatable to draw the thread around the rollers and the rotational axes of the rollers being parallel to one another but oblique to the longitudinal axis of the cage. As illustrated, three rollers 1, 2 and 3 are arranged equidistantly from an alignment shaft 4, each roller being mounted in the frame wall at one end and on a pivotally adjustable carrier plate 7 at the other end. Angular adjustment of the plate 7 to set the axes of the rollers oblique to the axis of the cage is possible by virtue of bolts 12 which protrude through arcuate slots 13 and carry nuts 14 which lock the plate in position. A drive to effect rotation is mounted on the other ends of the rollers which extend beyond the frame. Three sets of four rollers arranged coaxially on the frame may be used, each set constituting an individual cage.
Patent GB-1173258-A (GB)
Title: Electrolytic Water Treatment
IPC: C02F1/461
Filed: 1968-07-03
Abstract: 1,173,258. Electrolytically treating water. SANDEIGURAFE CO. Ltd. July 3, 1968 [Oct. 2, 1967], No.31690/68. Heading C7B. An apparatus for treating tap water comprises a housing 1 with electrical D.C. supply system in an upper part 5, and an electrically non-conductive container 2 separated into two chamber a, b by a vertical porous partition 3 e.g. of unglazed porcelain with a carbon electrode 4 placed vertically in each chamber and connected to the supply system, whereby the water is converted into acidic and alkaline water in the anode and cathode chambers, useful for medical purposes. The container can be stored in the lower part 8 of the housing.
Patent GB-326161-A (GB)
Title: New or improved smoke-producing devices for use in obtaining ground wind indication from the air
IPC: B64F1/18
Filed: 1928-11-01
Abstract: 326,161. armour, J. Nov. 1, 1928. Flash signals. - For dropping from aircraft to indicate ground wind a non-explosive smoke-producing device is provided comprising a closed container or carton of frangible nature adapted to rupture without detonation upon striking the earth and charged with a substance which produces a puff or cloud of easily visible smoke or fume on contact with air or water. The container may be made, of cardboard, thin glass, ebonite, or galalith; for example, it may comprise a bulb or tube p, Fig. 2, of glass or lead covered glass packed with cotton wool sand spongy rubber r in a cardboard carton o closed by a lid t. For use. on land, the charge may be a mixture of 30 parts by volume of stannic chloride or titanium tetrachloride with 70 parts of sawdust. For use over water, the charge may be a mixture of calcium with sulphur. Specifications 326,181, [Class 9 (ii), Torpedoes &c.], is referred to.