baber/WOPTO huggingface dataset:
Patent GB-1125764-A (GB)
Title: Automatic control of machine tools
Inventor: WALLIS CLIVE
IPC: G05B19/404
Filed: 1964-08-24
Abstract: 1,125,764. Programmed control of machine tools. GEORGE RICHARDS & CO. Ltd. Oct. 25, 1965 [Aug. 24, 1964], No. 34556/64. Heading G3N. In a programme controlled machine tool system cutter radius compensation signals are derived from speed dependent devices driven from the X and Y positioning motors. As shown generators on positioning motors 2, 3 for a machine tool 1 provide X and Y velocity signals on lines 4, 5, the ratio of which is equal to the tangent of an angle #, defined as the angle between the normal to a theoretical cutter path and one of the coordinate ones. The velocity signals are fed through networks 10 and amplifiers 6, 7 to the windings of a resolver 8, the rotor of which is driven by a servomotor 9. The motor is energized by a servosystem 17-20 to drive the rotor to a null position at which the rotor angle is equal to the angle #. Potentiometers 11, 12 are driven from the rotor of the resolver 8 and X and Y cutter rate compensation signals are derived from the sliders and used as described in Specification 1, 010, 293. The networks 10 each comprise a transistor biased at 400 c. p. s. to chop the X and Y velocity signals to feed the resolver and a transistor 22 switched by an amplitude responsive device 21 to attenuate the amplitude of the velocity signals at high positioning velocities.
Patent GB-383087-A (GB)
Title: Toy construction sets
IPC: A47B96/14
Filed: 1931-12-14
Abstract: 383,087. Constructional toys. VEREINIGTE SPIELWAREN-FABRIKEN A. FÍRTNER & J. HAFFNER'S NACHF. GES. and KAHN, S., 15, Kobergerstrasse, Nuremberg, Germany. Dec. 14, 1931, No. 34602. [Class 132 (iii)]. The circular holes in the building strips according to Specification 363,547 are replaced by openings o, Fig. 3, of other form (e.g. square, triangular, hexagonal, oval, &c.) that surround the circle 1 of the hole tangentially. In a modification, Figs. 6 and 8, the strip is provided with slots, or with holes and slots, the ends of the slots coinciding with the holes contemplated by the parent Specification, and the width of the slots being equal to the diameter of the holes.
Patent GB-198984-A (GB)
Title: Improvements in carriage feeding mechanism for typewriting machines
IPC: B41J19/46
Filed: 1922-12-20
Abstract: 198,984. Remington Typewriter Co., (Assignees of Seib, G. A.). June 12, 1922, [Convention date]. Letter-spacing mechanism.-To reduce shock and noise, the escapement-dog carrier is provided with a yielding mounting arranged so that the rocker can give bodily. The carrier 15, actuated in the manner described in Specification 105,865 and provided with fast and loose dogs 14, 13, is secured to a yielding mounting consisting of a sheet-metal bracket 28 formed with ears 31 mounted on the pivots 24, 26, spaces 37 being left between the ears and the arms 16 of the rocker. The bracket is secured to the rocker by means of screws 36 and is formed with a gap 33 and an aperture 34 receiving the rocker-actuating arm 19, and an adjusting-screw 19a for the arm respectively.
Patent GB-312244-A (GB)
Title: Improvements in splitting, skiving, buffing and like machines for working leather and similar materials
IPC: C14B1/00
Filed: 1927-12-23
Abstract: 312,244. Peake, J. F. Dec. 23, 1927. Bevelling ; vacuum work holders.-In a machine for splitting, skiving or buffing leather and like blanks, the blank is, by suction, extracted from, a movable magazine and held to a matrix on a work-table which carries it past a rotary knife or grinding tool to a suction ejector arm 50. The magazine comprises adjustable sides 3, - - 6 and gates 37, 38 mounted on a bell crank 22 swung about a shaft A against springs 28 by projections 24, 25 on the table engaging a latch 23. The rotating work-table carries perforated matrices. The work-piece is operated upon by a rotary knife 35 sharpened by a grinder 36 and is pressed by pivoted cranked fingers 47 urged by springs 5. The fingers are shaped to the knife-edge. In operation, the magazine is coupled to the rotating table by members 23, 24 and a work-piece is positioned by suction in the matrix and is carried past the tool. The latch 23 is freed by a, fixed pin 27 and the springs 28 and a buffer 32 restore the magazine to normal position. The workpiece is transferred to a suction arm 50 swung about a pin 51 by a roller 58 engaging an arm 57. The suction is controlled by a valve linkage 61 actuated by the roll 58 on the table. Actuation of a handlever 33 renders the machine inoperative. Specification 277,137 is referred to.
Patent GB-1070955-A (GB)
Title: Position indicating apparatus
IPC: H03M1/00
Filed: 1964-08-26
Abstract: 1,070,955. Electric selective signalling. INDUSTRIAL NUCLEONICS CORPORATION. Aug. 26, 1964 [Sept. 19, 1963], No. 35018/64. Heading G4H. In a position indicating device, a unique pattern of nucleonic radiation is presented to a plurality of detectors sensitive to the radiation for each one of a plurality of predetermined positions of a member relative to the detectors. In the particular embodiments, a linearly or angularly movable coded scale is moved in accordance with thickness of a body (Figs. 7-9, not shown), pressure or &c. The code segments may be radiation transmitting or absorbing segments with fixed radiation (#-rays) sources positioned behind the coded scale at the reading position, or the segments may themselves emit radiation (or not) either spontaneously or when stimulated (to emit bremsstrahlung X-rays) by a fixed radiation source at the reading position. Collimating means are provided, and unit distance codes are used.
Patent GB-414569-A (GB)
Title: Improvements in vehicle lamps
IPC: F21V7/04
Filed: 1933-12-15
Abstract: 414,569. Vehicle lamps. GASSMANN, E., Kilchberg, Zurich, Switzerland. Dec. 15, 1933, No. 35355. Convention date, Dec. 17, 1932. [Class 75 (iv).] A vehicle lamp comprises a reflecting hood 1 which completely screens from an oncoming driver or pedestrian an electric lamp bulb L having its centre A at the near focus of an ellipsoidal rear reflecting surface b, c with a remote focus B near the front edge of the hood and below the level of its substantially horizontal bottom edge d, the surface b, c being so disposed that most of the light which is finally projected is received by it from the bulb in a downward direction and is reflected as a converging beam to the remote focus whence a diverging beam is thrown forwards with its uppermost rays substantially parallel with the surface of the road. The bulb is inserted into the reflector from the top, its centre is disposed at approximately half the height of the hood, and a narrow ledge 2 supports a vertical glass panel 3. The front v of the hood may conform to the same ellipsoid E as the part b c. Specification 239,782, [Class 75 (iv)], is referred to.
Patent GB-832175-A (GB)
Title: Improvements in or relating to methods for use in the manufacture of fibrous webs
IPC: D21F9/02
Filed: 1958-11-04
Abstract: 832,175. Drying paper &c. LIPPKE, P. Nov. 4, 1958 [Nov. 30, 1957], No. 35359/58. Class 96. In the manufacture of paper &c, heat for drying the web is derived from a diesel engine plant which also generates electricity, heat from the diesel water-cooling system being used in the web-forming and wet press portions of the paper-making machine to heat the fibrous web and to heat the wet press felts to improve water-removal, electric resistance heating or electric radiation being used for heating the web and felt of the last wet press using electric energy generated by the diesel engine (so as to facilitate further water removal), air for a subsequent air-dryer being heated by heat remaining in the cooling water and by what would otherwise be waste heat of the exhaust gases, and the web is further heated by electric radiation in a pre-drying zone of a cylinder dryer part of the paper-making machine, so that only such an amount of water then remains in the web as can be dried off by heat from steam raised in an exhaust gas boiler. A heat-exchanger may heat the web on the wirecloth by means of a dandy roll.
Patent GB-1337917-A (GB)
Title: Reel for strip material
IPC: G03B21/32
Filed: 1972-07-28
Abstract: 1337917 Tape reels; securing initial end AGFA-GEVAERT AG 28 July 1972 [31 July 1971] 35422/72 Heading B8M A reel for receiving strip material 5 of the kind having an end section comprising a portion 5a of reduced width terminating in a wider transverse tab 5b is characterized in that the reel core 6 is provided with a recess 7 extending around part of its periphery, the recess 7 comprising an intial wide portion 7a communicating with a narrower portion, and two ribs 8, 9 adjoining the narrower portion and extending over a part of the length of the wide portion 7a, the ribs extending along opposite sides of the wide portion and being laterally spaced apart to allow the portion 5a to pass therebetween. A locking lug 11 is also provided extending from the floor 10 of the recess 7 in the wider portion 7a up to the level of the ribs 8, 9, a locking face 11a being provided spaced from the start of the narrower portion of the recess. The lug 11 is provided with a guiding surface which may be curved or planar. The reel may be provided with or without flanges 1, 2 and suitable means 3, 4 for connection to apparatus in which the reel is to be used e.g. a camera. In operation, the initial end of the strip 5 is positioned with the transverse tab 5b in the wider portion 7a of the recess. The strip is pulled in the direction of the ribs 8, 9 and the narrower portion of the recess whereupon the lug 11 guides the tab 5b beneath the ribs 8, 9. The tab 5b drops between the locking face 11a and the narrower portion and is held by the ribs 8, 9, the narrower portion 5a of the strip lying in the narrower portion of the recess 7.
Patent GB-1018275-A (GB)
Title: Improvements in reversible tractor ploughs
IPC: A01B3/426
Filed: 1963-09-09
Abstract: 1,018,275. Reversible ploughs. F. CHAMPION. Sept. 2, 1964 [Sept. 9, 1963], No. 35425/63. Heading A1B. A reversible plough of the type described in Specification 661,000 has a device for locking the reversible shaft 9 in two positions, which device comprises a disc 19 keyed to the shaft and having notches 21, 22 engageable alternately by a spring urged rod 17 of square cross section mounted on a member 15 slidable on the shaft. The device is operated during raising and lowering of the plough by a lever 1 connected to a tractor pivoted at 11 and carrying at one end a pin 12 which engages a cam member 13 acting through a transverse shaft 26 and double crank 14 to slide the member 15 along the shaft.
Patent GB-513885-A (GB)
Title: Improvements relating to means for converting polyphase electric currents
IPC: H02M1/22
Filed: 1938-04-29
Abstract: 513,885. Commutator switching arrangements NEEDHAM, W., and ROBINSON, S. April 29, 1938, No. 35613. Divided out of 513,841. [Class 38 (ii)] Means for converting polyphase A.C. into D.C. or vice versa comprises a number of angularly displaced commutators A', A<2>, A' on a common shaft each associated with slip rings a<1> to which the A.C. terminals are connected and with a pair of fixed brushes a<2> which are connected through chokes G to the D.C. terminals A pair of such arrangements. driven at different speeds, one operating to convert A.C. to D.C. and the other operating to convert the D C. so obtained to A.C. may be used as a frequency changer. Alternatively a pair of such arrangements may be used in association with a transformer as described in Specification 513,841 for D.C. voltage transformation.
Patent GB-410546-A (GB)
Title: Improvements in or relating to electro-optical light valves for use in television, photo-telegraphic sound recording and like systems
IPC: H04N5/66
Filed: 1932-12-16
Abstract: 410,546. Electro-optical light-valves. JACOMB, W. W., COLLIER, T. W., and BAIRD TELEVISION, Ltd., 58, Victoria Street, London. Dec. 16, 1932, No. 35661. [Class 40 (iii).] In an electro-optical light-valve assembly, the constant light-source is positioned by means applied to the envelope surrounding the luminous element of the source. The lightvalve 5 is inserted in a tube 32 which is located transversely between analyzing and polarizing prisms in a tube 28 having at one end an adjustable focusing lens 26. An annular member 6 of thin sheet metal has extensions which are fixed to distance pieces on the tube 28 and is capable of slight rotation by providing slots co-operating with screws. A similar annular portion 8 is rotatable on screws 14, 16 by which it is secured to the portion 6 and has lugs 10, 12 limiting its rotation in one direction. The portion 8 is swivelled through a right-angle and the envelope of the lamp 2 placed against the portion 8 so that on its return to its normal position clamping of the lamp is effected by the two annular portions 6, 8. The cell which may be of the type described in any of Specifications 253,957, [Class 40 (iii)], 391,931, or 403,155 may be enclosed in a cylindrical glass tube around which is placed an opaque covering with an aperture or slit. A shield (not shown) is provided to withdraw heat from the polarizing and analyzing prisms.
Patent GB-994540-A (GB)
Title: Improvements in valves for fluids
IPC: F16K5/06
Filed: 1963-09-11
Abstract: 994,540. Valves. WHITEY RESEARCH TOOL CO. Sept. 11, 1963 [March 25, 1963], No. 35771/63. Heading F2V. In a rotary spherical valve the closure 18, upon integral stem 19, is enclosed by and operates within a cylindrical polytetrafluoroethylene cage comprising upper and lower halves 10 and 11 which are restrained under compression, within a central chamber 6, by the adjustment of a packing nut 32 bearing upon a packing gland 29 having grooves 31 which engage the upper half 10 of the cage. Cold flow of the polytetrafluoroethylene under compression is minimized by steel bushes 21, thinly coated on both faces with polytetrafluoroethylene 22, which surround the passageways 4 and 5 and are spaced from the body of the valve and from the closure 18 to permit flow of resin into the spaces 23 therebetween; and by steel discs 27 in diametrically opposed apertures 26 of the polytetrafluoroethylene which align with and prevent flow into the bore 20 in the closed position. The ball 18 is rotated by a handle 34 secured by a set screw 35 upon stem 19 and rotation is restricted to 90 degrees, between the open and closed position, by the abutment of a 90 degrees arcuate lug 37, upon the handle 34, against a raised portion 38 of the bonnet 7 which extends over 180 degrees. Upon release of the set screw 35, the handle 34 may be rotated to align longitudinal holes 39 therethrough with holes 40 in the nut 32 and, with a tool inserted through both sets of holes, the handle 34 is used to rotate nut 32.
Patent GB-175489-A (GB)
Title: Means for and methods of superposing electric currents of different frequencies uponexisting alternating current systems
IPC: H02J3/02
Filed: 1920-12-21
Abstract: 175,489. Taylor, A. M. Dec. 21, 1920. Polyphase systems; distributing two kinds of current by same conductors; distributing mains, arrangement of; systems depending on the use of static transformers; systems depending on the use of two or more machines. - An alternating current of one frequency is superposed upon an alternating current of a different frequency by the aid of transformers in such a manner that the insulation stress in the cores of the cables is not increased over that due to the normal supply current. The separate or independent secondary windings of a three-phase transformer SUT, Fig. 1, or three single-phase transformers are connected to the cores of two three-core cables in the manner shown, and a generator AG of different frequency is connected to the mid points of the secondary windings of the transformer and has its neutral point earthed. At the receiving end RE, the mid-points of the primary windings of a step-down transformer SDT are connected to the primary windings of an auxiliary transformer AT. Fig. 2 shows an arrangement in which three three-limb transformers are employed and the mid-point of each secondary winding S is connected to the auxiliary generator AG through a coil MC on the middle limb of the transformer. To avoid the use of an auxiliary transformer at the receiving end, a secondary winding is placed on each three-limb transformer such that the windings over the primary coils P, Fig. 3, are reversely wound and connected in series with a winding on the middle limb..In the modification shown in Fig. 5, the auxiliary transformer is dispensed with and the mid-point of the primary winding P is connected through a coil MC to a bus-bar to which a high-frequency generator AG is connected. In a further modification two single-phase transformers are employed. Further, the three-limb transformers may be replaced by a single four-limb transformer.
Patent GB-1443205-A (GB)
Title: Mining machine
IPC: E21D9/00
Filed: 1973-07-27
Abstract: 1443205 Mining equipment COAL INDUSTRY (PATENTS) Ltd 21 June 1974 [27 July 1973] 35851/73 Heading E1F A boom assembly 18 for a mining machine suspended from an overhead track 3 has a bracket 30 for mounting a rock breaking tool 37 or a bucket 36. A carriage assembly 6 is mounted on the track 3 by shoes 9 and 10 and comprises components 7 and 8 pivotally connected to one another by a pin 5 to negotiate misalignment in the track. The component 7 has a slideway 12 on which is slidably mounted a slide assembly 13; having a support 16. The support 16 is -mounted for pivotal movement in a horizontal plane and pivotally carries the boom assembly 18, the end of the latter being rotatable about its longitudinal axis. The tool 37 or bucket 36 may be mounted on a slideway 34.
Patent GB-782372-A (GB)
Title: Exhaust conditioning for internal combustion engines
Inventor: PALMER LAWRENCE WILLIAM
IPC: F01N3/04
Filed: 1954-12-11
Abstract: 782,372. Treating exhaust; indicating working conditions. RUSTON & HORNSBY, Ltd. Dec. 12, 1955 [Dec. 11, 1954], No. 35915/54. Class 7(2) The rate of water injection into an engine exhaust system is increased with increase in the exhaust gas temperture by a thermo-responsive device 19 preferably located downstream of the point 22 at which water is sprayed into the system and which by increased pressure communicated through a capillary 21 closes a valve 17 in a shunt 18 across a water supply line comprising a ring main 13, 23 incorporating a filter 14, pump 15 and relief valve 16 and fed from a tank 11, If the device 19 fails the injection rate is set at its maximum or other safe value, e.g. if there is normally always sub-atmospheric pressure in the capillary 21, failure thereof .would fully close the valve 17. An excessive rise in exhaust gas temperature due to failure of the water injection system operates a further thermo-responsive device 24 to cut off or reduce the engine fuel supply. There may be a spring-loaded non-return valve in the connection 27 between the ring main and the spray point.
Patent GB-1202927-A (GB)
Title: Improvements in driving chain
IPC: F16G13/06
Filed: 1967-08-08
Abstract: 1,202,927. Chains. HEINRICH SCHOMACKER & CO. 8 Aug., 1967 [12 Aug., 1966], No. 36262/67. Heading F2Q. Flexible seals 7 are located in the spaces between outer links 2 and inner links 3, forming annular spaces 10 which are in communication with an annular clearance space 11 formed between a pin 4 and bush 5, the spaces being filled with lubricant. The seals 7 are preferably made of nylon and are reinforced by brass washers 12. The pre-load travel of each seal is greater than the maximum possible amount by which the outside link engaging the seal can shift away from the inside link engaging the seal.
Patent GB-1195140-A (GB)
Title: An Improved Method and Apparatus for the Manufacture of Steel Tube.
IPC: B21B21/00
Filed: 1968-07-30
Abstract: 1,195,140. Rolling. MANNESMANN-MEER A.G. 30 July, 1968 [29 Aug., 1967], No. 36308/68. Heading B3M. Steel tubes are manufactured by cold rolling tube blanks in respective pilgrim mills 5-8, annealing the tubes in a furnace 10, and then cold rolling them in a mill 12 in which their length is increased while their wall thickness is held constant. Each pilgrim mill 5-8 employs a pair of rolls and a tapered mandrel, whereas a final mill 12, which can include up to 20 stands, is used without a mandrel. To compensate for the increased wall thickness normally produced in the mill 12, the mandrel in each pilgrim mill can be moved at the beginning and end of rolling a blank, to produce a tube having decreased wall thickness at its ends. In an alternative mill arrangement, four pilgrim mills are served by two annealing furnaces.
Patent GB-424331-A (GB)
Title: Improvements in or relating to laundry plant and like apparatus and to master switches for the timed electrical control through relay devices of various operations thereof
IPC: H01H43/12
Filed: 1933-08-15
Abstract: 424,331. Time switches for valve control in washing-machines. NEWBERY, S., 258, Cromwell Road, Peterborough. Aug. 15, 1933, No. 36596 /34. Divided out of 424,418, [Group VIII]. [Class 38 (v)] [See also Group VIII] A master switch for controlling the timed operation of a laundry washing or like plant comprises an arm 7 driven at a predetermined rate by means for example of a motor so that wipers 8 carried by the arm sweep over concentric circles of socket contacts 2, 3 ... 6 and close at predetermined times circuits selected by placing jacks into particular sockets. The jacks control circuits to relay devices which operate valves for delivering liquids and may also control rotation of a washing drum. The jacks are preferably wired to other jacks plugged into sets of sockets 10, 11, 12, 13, 18, 35 corresponding to particular operations. The sockets 2 ... 6 may be arranged at intervals representing minutes and an indicator 30 on the opposite side of the board to the arm 7 shows the position of the latter. Additional sockets 31 electrically connected to an annular member 32 permanently engaged by the arm 7 may be engaged manually by the jacks so as to cause any operation at any time desired independently of the timed movement of the arm 7. A ratchet coupling is provided between the arm 7 and its driving mechanism to enable the arm to be reset. Specification 424,418 is referred to.