baber/WOPTO huggingface dataset:
Patent GB-896259-A (GB)
Title: Process and apparatus for measuring dynamic unbalance in rotating bodies
IPC: G01M1/22
Filed: 1958-09-13
Abstract: 896,259. Measuring rotor unbalance electrically. AVERY Ltd., W. & T. Sept. 13, 1958, No. 29399/58. Class 40 (1). Apparatus for determining the magnitude and angular position of the dynamic unbalance of a disc incorporates means for automatically controlling an unbalance correction tool in accordance with the measurements. A motor 110 (Fig. 1) drives a shaft 212 (Fig. 2) carrying the test rotor 105 and a reference phase generator 222, whose rotor winding 216 is fed with D.C., whereby sine and cosine voltages are induced in quadrature stator coils 218a, 218b, 219a, 219b, which voltages are taken to similarly located fixed coils 202a, 202b, 203a, 203b on a meter 201, whose rotor winding 204a is fed with the unbalance signal from vibration transducer 209. The rotor 204a therefore lines itself up in accordance with the phase of the unbalance signal, and is clamped in this position by a magnetizable ring 207, acting on a pointer 205 carried by rotor 204a, energized via a time delay switch R, which also de-energizes the drive motor 110. When the speed of shaft 212 is sufficiently reduced, a centrifugal switch 215 operates change-over switch 208, which connects rotors 204a and 216 to an A.C. supply voltage. The meter 201 and reference phase generator 222 now act as a selsyn system, and rotor 216 lines itself up with damped rotor 204a, when the difference currents in the lines interconnecting their stator windings fall to zero, and relay windings 221a, 221b operate a switch, producing energization of a clamping ring 211 on shaft 212 which attracts a disc 229, and locks the shaft with the workpiece 105 in the correct angular position for correction of unbalance by a drill 106. Alternatively the workpiece 105 is located in a reference position and the tool 106 is angularly positioned in accordance with the phase of the unbalance signal, measured by meter 201. The magnitude of the unbalance is determined by a double watt-meter type instrument 300 whose field coil pairs 303a, 303b (Fig. 3) are fed with sine and cosine voltages respectively from phase generator 222, and whose moving coils 301a, 301b are both fed with the unbalance signal from transducer 209. The pointer 305 of meter 300 is deflected under the action of the sum of the two components of the unbalance signal, and the shape of the magnetic poles of the meter is such that the deflection follows a square law rule. Hence the total deflection is proportional to the sum of the squares of the components, and hence proportional to the square of the unbalance magnitude. The pointer 305 is clamped in this position over one selected contact 308a from a bank of contacts associated with the scale 308. A relay mechanism now drives the drill 106 and an arm 313 to the appropriate depth determined by arm 313 reaching contact 308a. Specifications 756,168 and 807,041 are referred to.
Patent GB-1435499-A (GB)
Title: Vibratory impact generators
IPC: E02D3/074
Filed: 1972-06-23
Abstract: 1435499 Vibrators INDUSTRY SECRETARY OF STATE FOR 10 Aug 1973 [23 June 1972] 29445/72 Heading F2X A vibratory impact generator comprises a vibrator block 10 provided on its underside with an impact face 12, at least one pair of outof-balance rotors 24, 26, and means for rotating each pair of rotors in a synchronized manner in opposite directions so that the net vibratory force produced lies in a pre-determined direction non-parallel to the impact face 12, the rotors 24, 26 being mounted in fluid pressure lubricatable bearings in the vibrator block 10 so that vibratory force is transmitted from the rotors to the block through a fluid film. In the embodiment shown, the vibrator block 10 is connected by restraining columns 14 with an impact member 16, the top ends of the columns 14 being located by a top plate 18, and when at rest is held mid-way between the impact member 16 and the top plate 18 by helical springs 70, 72 on each column 14. The vibrator block 10 is provided with two parallel bores 20, 22, each of which houses an out-of-balance rotor 24, 26. The rotors 24, 26 are driven by turbines 36, 38, both of which are supplied through a pipe 40 arranged to slide in a bearing 42 in the top plate 18. When the fluid supplied through pipe 40 has given up energy in the turbines 36, 38 it escapes through channels 44 along the axes of the rotors 24, 26 and out through a pipe 46 which can slide in a bearing 42 in the top plate 18. The rotors 24, 26 have a clearance of the order of 0À025 mm. with the bores 20, 22 and fluid under pressure is supplied to the clearance space through axially spaced rings of apertures (not shown). Thus the rotors 24, 26 are supported in hydrostatic bearings. The rotating outof-balance rotors 24, 26 are synchronized so that the vibrator block 10 vibrates in the direction of the columns 14 and this synchronism is maintained by two pulleys (64, 66) (Figs. 2 and 3, not shown) coaxial with the rotors and connected through a crossed belt 68. A suitable fluid for use with the generator is a solution of soluble oil in water. The impact member 16 may be provided with fixing holes or integral lugs which allow the attachment of, e.g. a chiselshaped tool for earth or rock cutting, or a cap member which can fit over the head of a pile which is required to be driven.
Patent GB-652836-A (GB)
Title: Improvements in elastic snap ring fastener
IPC: F16B21/18
Filed: 1948-11-12
Abstract: 652,836. Circlips. ABER, J. S. Nov. 12, 1948, No. 29467. [Class 89(ii)] Circlips for securing joint pins and like articles in position are formed .as rings of rubber or other elastic plastic material. They may be of circular cross section as at 10 or may be of square or other form. Applications to securing wheels upon axles, to a spring controlled electric relay arm and to connecting a solenoid to a machine part to be operated are also illustrated.
Patent GB-1227429-A (GB)
IPC: H01R13/432
Filed: 1968-06-20
Abstract: 1,227,429. Two-part couplings. COMPAGNIE GENERALE D'ENTREPRISES ELECTRIQUES. 20 June, 1968 [21 June, 1967; 18 Dec., 1967], No. 29548/68. Heading H2E. An electrical socket connector, Fig. 2, comprises a two-part insulating housing, one part 2 having four flexible cantilever walls W extending from a box-like portion, two opposite walls W being provided with shaped lugs 22 which snap into slots 23 in a second housing part 1, and the other two opposite walls W having round lugs 14 which enter slots 24 in part 1. A conductive contact 3, Fig. 3, has parallel contact plates 4, 5 and is held in housing part 2 by the engagement of a recess 28 in contact 3 with an internal boss (not shown) in part 2. Alternatively, each contact may comprise two or four separate contact plates held together by a central insulating body (Figs. 4, 5, not shown). A plurality of socket connectors may be assembled to form a co-ordinate matrix, adjacent connectors being in relatively orthogonal dispositions with lugs 14 located in recesses 15 in the housings of adjacent connectors. Figs. 8, 9 show respectively a male contact and an insulating housing therefore adapted to engage in either end of the socket connector. The male contact comprises resilient arms 102 to engage between the contact plates of the socket contact, and resilient fingers 104 and shoulders 108 to locate and retain the contact non-rotatably in the housing.
Patent GB-207685-A (GB)
Title: Improvements relating to water waste preventers for the flushing of lavatories, urinals and the like
IPC: E03D1/12
Filed: 1922-10-31
Abstract: 207,685. Barnard, W. Oct. 31, 1922. Siphon-discharge water-waste preventers.-In apparatus of the type started by releasing air from an air-lock in the dome of a siphon, an air tube D is connected to the dome by two branches E. The cylinders within the dome are of such configuration that the water seal is formed at the levels M, M<1>.
Patent GB-442907-A (GB)
Title: Improvements in or relating to magnetic separators
IPC: B03C1/16
Filed: 1934-10-18
Abstract: 442,907. Magnetic separators. THOMPSON, H. H., and DAVIES, A. E., Magnet Works, Lombard Street, Birmingham. Oct. 18, 1934, No. 29793. [Class 72] The highly magnetic particles of the material to be treated are removed, before the material enters the field of the main separator, by feelers or fingers k on a belt j<1> moving transversely to the stream of the material, the feelers &c. k being magnetized by stray magnetism from the poles d of the main separator which also has rotating discs e. The material is fed from a hopper a by a shoot b on to a travelling band c. The feelers &c. may consist of small tapered iron blocks k or of metallic wires set in the belt and projecting from the surface of the latter. Two, three or more belts such as j spaced at progressively increasing distances from the poles d &c., may be provided. The belt j<1> is mounted in pulleys l driven by a belt &c. from the main shaft g. The main separator a comprises an armature disc e rotating over the band c, and more than one separator may be provided. To prevent sagging of the belt due to magnetic attraction of the poles d on the fingers or feelers, the side edges of the belt j<1> are guided in brass or other non-magnetic channels.
Patent GB-951608-A (GB)
Title: Improvements relating to control devices for nuclear reactors
Inventor: HUGGILL JOHN ANTHONY WYNNE
IPC: G21C7/18
Filed: 1959-09-01
Abstract: 951,608. Controlling reactors. A.E.I.- JOHN THOMPSON NUCLEAR ENERGY CO. Ltd. Aug 18, 1960 [Sept. 1, 1959], No. 29811/59. Heading G6C. A control device for a nuclear reactor comprises two or more neutron absorbers movable relative to each other to vary the effective neutron absorbing area. Fig. 2 shows a device for local control of part of a reactor core in accordance with the temperature of that part. A fixed ring carrying neutron absorbers 7 surrounds a ring carrying absorbers 11; the inner ring is attached to one end of a bimetallic strip 9 whose other end is fixed, so that temperature changes cause rotation of the inner ring relative to the fixed ring. The strip 9 may be of a Mg alloy and a Zr alloy; the creep properties of these alloys ensure that the device follows rapid temperature changes but not slow ones. The absorber may contain B or Cd, e.g. as a Cd-Ag alloy. The device may be attached to a fuel element.
Patent GB-759594-A (GB)
Title: Improvements relating to holders for paying out string and the like
IPC: B65H75/32
Filed: 1952-11-26
Abstract: 759,594. String cutters. SMITH'S PRESS PRODUCTION WORKS, Ltd., and SMITH, C. H. Nov. 26, 1953 [Nov. 26, 1952], No. 29888/52. Class 30. [Also in Group XVII] A holder for dispensing string, tape &c. (see Group XVII) is provided with a cutting device 6 on the removable lid 5.
Patent GB-1182820-A (GB)
Title: Manufacture of Semiconductor Elements.
Inventor: COLLIER GODFREY EMANUEL
IPC: B28D5/04
Filed: 1967-06-27
Abstract: 1,182,820. Subdividing semi-conductor wafers. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. 13 June, 1968 [27 June, 1967; 28 June, 1967], Nos. 29560/67 and 29892/67. Heading B3D. [Also in Division H1] A semi-conductor wafer 1 having a PN junction 2 parallel to its major faces is cut into a plurality of elements by a series of criss-cross cuts, the side walls of which are inclined to the junction 2 at an angle other than 90 degrees; preferably 60 degrees. The wafer 1 may be of Si, Bi 2 Te 3  or GaAs and preferably adhered by wax 3 to a glass plate 4 which is itself mounted by wax on a support 5. The cutter 6, which is longitudinally oscillated across the wafer, is provided with inclined walls 7 and may act alone or simultaneously with an assembly of similar parallel cutters. In the latter case the assembly of cutters may comprise a unitary structure (Fig. 3, not shown) in the form of a serrated cutting plate. The serrations may be interrupted by grooves at intervals along their lengths. The plate may have apertures through which an abrasive slurry is fed, or alternatively an abrasive paste such as fused alumina in a wax emulsion may be applied to the wafer before the cutting process commences. An alternative form of cutter assembly comprises an array of peripherally grooved rods (15), Fig. 6 (not shown), mounted rigidly in a frame (13) with their axes parallel. When the cutting edges wear the rods (15) may be rotated slightly to expose a fresh edge.
Patent GB-208856-A (GB)
Title: Improvements relating to wind-shields for motor-cars and other vehicles
IPC: B60J1/00
Filed: 1922-11-02
Abstract: 208,856. Auster, Ltd., and Inshaw, J. F. Nov. 2, 1922. Windscreens.-In a windscreen, particularly for the rear seats of motor vehicles, of the kind, such as is described in Specification 2898/09, which is mounted upon hinged or folded arms 1, 2, Fig. 7, so that the screen can be adjusted towards or away from the occupants, the joints between the arms 1, 2 or those between the arms and the screen or vehicle are adapted to be locked in an adjusted position by a clamping device 16, Fig. 3, carried by one member 1 of the joint engaging a boss or cylindrical member 15 forming an extension of the pivot or joint pin 13, which is secured to the other member 2 of the joint. In the construction shown in Figs. 3 and 5, the boss 15 forms an extension of a. flanged tubular shank 5, which passes through the. overlapping ends 6, 7 of the members 1, 2 and is secured to the end 6 by means of a washer 10 having projections 9, 11 engaging notches 8, 12 in the shank 5 and end 6 respectively and retained in position by a conical-headed pin 13 screwing into the shank 5. The boss 15 is surrounded by a split eye 16, which is formed on one end of a strap or plate 17 attached to the member 2 and is adapted to be contracted by a thumb-screw 18 for locking the joint. In a modification, Fig. 6, the pivot pin 5 is in a single piece and is attached to the member 1 by means of projections 20 engaging recesses 12 in the member 1. Modifications are also described in which the locking-joint is applied between the folding-arms and the screen-carrying member and between the folding-arms and the brackets on the back of the front seats.
Patent GB-778990-A (GB)
Title: Cup dispensing mechanism
IPC: G07F13/10
Filed: 1955-10-20
Abstract: 778,990. Coin-freed vending apparatus. AUTOMATIC CANTEEN CO. OF AMERICA. Oct. 20, 1955 [Oct. 25, 1954], No. 29972/55. Class 27. Cup dispensing mechanism for a beverage vending machine comprises a number of stacks of nested cups in tubular containers 7 moved one stack at a time over a cup separating mechanism 1 as the cups in a previous stack fall below a predetermined level, the stacks being moved in a closed path, such as an elliptical path, having more than one centre. The stacks are moved by one or more chains 14, 17 having pairs of spaced pins 13, 16 engaging holes in projections on the side of the containers and the chains are driven through a shaft 22, separable connection 29, shaft 28 and gear box 29 by a motor 26 which is energized by a mercury switch 48 swinging round a pivot 46 when the top of a stack falls below the lower end of an arm 45 on the switch.
Patent GB-337553-A (GB)
Title: Improvements in rotary driven coal cutting or the like machines
IPC: E21B6/00
Filed: 1929-10-05
Abstract: 337,553. Butterworth, L., and Hayden, Ltd., J. E. Oct. 5, 1929. Percussive channelling-drills.-A rotary-percussive coal-cutting machine has the drill-carrying member rotated by an aligned non-reciprocating shaft, the member having projections which impinge against, or rebound from, stationary members so the drill is free from much axial constraint during its forward and backward movements. A carriage 4, pivoted to a block 2 and adjustable by worm gearing 6, slidably carries a two-part cylinder 7 with legs 9 connected to the frame 10 of a motor or turbine 11; within the cylinder is a piston-member 17 slidably engaging the flattened &c. end of an extension 22 of the motor &c. shaft so as to be constantly rotated thereby. The member 17 has diametrically-opposed cam members 32 which at intervals during the rotation of the member 17 contact with balls 38 so as to impart loose blows to the tool 20. The balls 38 rest against seats.35 held by screws 36 and nuts in recesses in segmental thickenings 33 in the cylinder. A feed screw 13 is provided for adjusting the cylinder and a lubricant cup 39 is provided, holes 41 in the piston-member permitting passage of lubricant. The motor may be fixed to the carriage 4 and drive through gearing adapted to maintain the drive throughout in spite of the feeding of the drill. The number of cams and balls may be varied, and the balls may be relatively angularly displaced.
Patent GB-850369-A (GB)
Title: Systems responsive to a plurality of input forces acting parallel to a plane
IPC: G01P5/175
Filed: 1956-10-04
Abstract: 850,369. Machmeters. GIANNINI CONTROLS CORPORATION, Oct. 4, 1956, No. 30324/56. Class 40 (1). In an apparatus for determining Mach number, forces proportional to two of the three directly measurable pressures, say total pressure and static pressure, are applied by capsules 60 and 70 (Fig. 1) to a member 50 at points on an axis 58 normal to a plane which is parallel to those in which the forces act, the member 50 being mounted on a support 25 to be freely rotatable about a pivot axis 52 normal to the plane. Deviation of the member 50 from its normal, position causes closure of contacts 81, 83, or 82, 83 whereupon the servomotor 30 drives the shaft 24 in the direction necessary to open the closed contacts, thus rotating the member 50 until the resultant of the forces is directed towards the pivot axis 52. The amount of the rotation is measured by the rotory potentiometer 34 and indicated by the meter 44, which may be directly calibrated in terms of shaft angle. In a modification (Fig. 3) the servomotor drives the shaft 24a which instead of rotating the member 50, rotates the arm 20a which alters the angle between the lines of action of the two forces until their resultant is directed towards the pivot axis 52a. The Specification shows that the ratio of the two forces may be evaluated in terms of the angle between the lines of action of the two forces and the angle through which the shaft 24 or 24a is rotated. By appropriate selection of the parameters of the apparatus the angle of rotation may be made to provide a substantially. linear measure of the Mach number over various selected ranges of its value. The contacts 81, 82, 83 may, if desired, be replaced by means producing an error signal proportional to the deviation of the member 50 from its normal position.
Patent GB-1494284-A (GB)
Title: Self-advancing mine roof supports
IPC: E21D23/08
Filed: 1975-07-19
Abstract: 1494284 Mine roof supports GULLICK DOBSON Ltd 29 Oct 1975 [19 July 1975] 30347/75 Heading E1P A mine roof support comprises a base 10, an inclined shield 11 pivotally attached to the base, a canopy 12 pivoted to an upper part of the shield, hydraulic props 26 between the base 10 and the shield 11, and hydraulic props 28 between the base 10 and the canopy 12. The shield 11 is attached to the base 10 by two links 14, 15 arranged so that the props 26 are not angularly displaced when the shield is raised or lowered. The joint between the shield 11 and the canopy 12 may comprise concave and convex facings 23, 24 which prevent the ingress of debris, or alternatively the rear of the canopy may overlap the joint, Fig. 2 (not shown). The links 14, 15 may be attached to the base 10 by universal type joints 39, 40 to enable lateral movement of the shield 11.  A sprag plate 64 operated by a hydraulic cylinder 64 may be used to support the working face. The props are aligned, Fig. 3, by a piston and cylinder unit 50, 51 attached to the base, and side shields 58, 59 which may be laterally adjustable by cylinders 62 are provided.
Patent GB-783662-A (GB)
Title: Color-image-reproducing apparatus of the projection type
IPC: H01R13/66
Filed: 1955-10-24
Abstract: 783,662. Television. HAZELTINE CORPORATION. Oct. 24, 1955 [Nov. 19, 1954], No. 30354/55. Drawings to Specification. Class 40 (3). [Also in Group XL (c)] In a colour television receiver in which component colour images produced by a plurality of picture-reproducing cathode-ray tubes are combined in register on a viewing screen degradation of register due to the magnetizing effect on neighbouring iron elements (e.g. focus winding housings or magnetizable electron gun components) of current surges produced by E.H.T. voltage sparking between the anode and other tube electrodes is reduced by including currentlimiting resistors in the E.H.T. supply to the final anode of each tube. The resistors have a value of 22K. and should be of a type which is capable of withstanding the full E.H.T. voltage without momentary breakdown (during the surges) due to surface leakage. A housing for the resistors which prevents such breakdown is described. Specifications 689,356 and 773,706, [Group XL (c)], are referred to.
Patent GB-990447-A (GB)
Title: Process for the preparation of vinyl esters
IPC: C07C69/01
Filed: 1963-07-31
Abstract: Vinyl esters are produced by reacting ethylene with an aliphatic carboxylic acid having up to 4 carbon atoms in absence of water and in presence of a p-quinone, a halide of a Pt group metal and an alkali metal salt of said acid at elevated temperature and pressure, separating the ester and the Pt group metal catalyst, reoxidizing the quinol to the quinone, without separating it, with oxygen in presence of a Rh catalyst and using the regenerated p-quinone in a further reaction of ethylene with acid.  The preferred quinone is benzoquinone, but methyl-, chloro- and bromo-benzoquinones are also suitable.
Patent GB-1089788-A (GB)
Title: Process for the production of steroidal lactone compounds and intermediates thereof
IPC: C07J75/00
Filed: 1966-07-06
Abstract: Novel steroids of the Formula (IV) are prepared from steroids of the Formula (II) by reaction of the latter with a compound M-CH2-R1 (M is an alkali metal) and subsequent hydrolysis by heating with water or water and an organic acid; and are converted to steroids of the Formula (I) by hydrolysis with a strong acid or alkali. <FORM:1089788/C2/1> <FORM:1089788/C2/2> <FORM:1089788/C2/3> In these formulae R1 is carboxamido which may be substituted, carboalkoxy or cyano; Z is carbonyl, A a double bond and B a single bond or Z is b -hydroxymethylene, A a single bond and B a double bond; W is b -OH and Y is a single bond, or W is -NR2R3 on which R2 and R3 are C1- 4 alkyl or -NR2R3 is pyrrolidino, piperidino or morpholino and Y is a double bond.  Steroids (IV) which are D 5-3-ols may be oxidized by the Oppenauer method to the D 43-ones before conversion to steroids (I.) Steroids (II) are described and claimed in Specification 1,066,658.