baber/WOPTO huggingface dataset:
Patent GB-155068-A (GB)
Title: Improvements in and relating to chain-track vehicles
IPC: B62D55/30
Filed: 1919-10-06
Abstract: 155,068. Caterpillar Tractors, Ltd., (Holt Manufacturing Co.). Oct. 6, 1919. Endless-track vehicles.-The idler bearings are carried in a yoke which is pressed forwardly to tension the tracks by means of adjustable springs, thus avoiding breaking the tracks by the entrance of obstacles between the tracks and the sprockets. The bearings 18 slide in guides formed in the sides of the truck 11 which carries a cylinder 24 through which a rod 27 projects. The rod 27 is received in a socket 23 in the yoke 21 and is encircled by a spring 25 bearing against a collar abutting against the yoke 21 and a collar 26 carried by the rod 27, respectively. The yoke 21 and rod 27 are connected by a pin and slot to prevent relative rotation. The rod 27 can be advanced to tension the spring by rotating a nut 28 by means of a worm on a cross-shaft 30. The sides of the truck enclose the yoke &c. and are brought together and fitted with a top runner forming a guide for the upper run of the track. In a modification, two spring devices are provided, one in each arm of the yoke.
Patent GB-425669-A (GB)
Title: Improvements in or relating to whip-stitching
IPC: D05B1/20
Filed: 1934-08-24
Abstract: 425,669. Sewing-machines. SVADLING, J. B., 23, Humlegardsgatan, Stockholm. Aug. 24, 1934, No. 24396. Convention date, Aug. 24, 1933. [Class 112] A sewing-machine has an attachment or is modified to effect the laying of a binding ing thread by a horizontally moving needle or the like, this stitch being anchored above and below the work by alternate stitches of the needle and bobbin thread of an ordinary lockstitching machine. The needle 22 carried by the bar 23 co-operates with the usual bobbin, (not shown), to effect ordinary lockstitching by threads 49, 50, Fig. 7. The clamp 21 of the needle 22 is attached to a bar 20 pivoted at 19 so as to rock this bar as the needle 22 reciprocates. This rocking bar actuates the bar 5 carrying the overedge stitching needle 7 causing it to advance and withdraw horizontally to lay stitches 51, 52 over the edge of the material 48. The needle bar 5 is raised and lowered to lay the stitches 51, 52 above and below the edge of the material by a spring arm 9 attached to the frame and being raised and lowered by contact with projections 15 on a ratchet wheel 12. This wheel is rotated step-by-step by a projection 11 on a rod 10 pivoted to the bar 5 at 18 and held in place by a lever 37 pivoted at 38 and biassed by a spring 41. A spring biassed pawl 17 regulates the ratchet. The needle 7 has a hollow channel 46 for the thread 45, Fig. 6.
Patent GB-534039-A (GB)
Title: Improvements in a device for aerating containers filled with sterile fluid and closed in airtight fashion
IPC: B65D51/16
Filed: 1939-08-24
Abstract: 534,039. Venting. SCHADE, A. Aug. 24, 1939, No. 24413. Convention date, Sept. 8, 1938. [Class 21] A fruit can or other container is provided with a germ-filtering vent aperture by placing a rubber or other cup 10 on the surface containing gum-filtering material and actuating a piercing member 14 to make a vent-hole. The member 14 may be a pin or may be a tube containing filter material and adapted to be connected to a source of compressed air to eject the liquid. The compressed air may also connect to a nozzle at the side, a pin being used to form the vent.
Patent GB-1465754-A (GB)
Title: Deflection system for a cathode ray tube
IPC: H04N3/16
Filed: 1974-06-03
Abstract: 1465754 Cathode-ray tube circuits COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 3 June 1974 [13 June 1973] 24427/74 Heading H4T A deflection system for a cathode-ray display tube (used, e.g. for representing curves, images &c., by a sequence of closely spaced points) comprises, for each component of deflection, a rapid response circuit and a slow response circuit. Fig. 2, shows the arrangement for horizontal deflection 1 together with an identical arrangement 51 for vertical deflection. The arrangement 1 comprises, in respect of the slow response circuit 2, a subtractor 3, a narrow bandwidth amplifier 4, a deflection coil 5 having a comparatively large number of turns and a "measuring" resistor 6, the rapid response circuit 12 comprising a subtractor 13, a wide band amplifier 14, a deflection coil 15 having a comparatively small number of turns and a "measuring" resistor 16. In operation, when a horizontal deflection stepped waveform, Fig. 5a, is supplied to the "+" input of subtractor 3 the magnetic field produced by the deflection coil 5 has the wave-shape shown in Fig. 5b. The voltage input to subtractor 13 (which is the output of subtractor 3) has the form Vk1 shown in continuous line in Fig. 5c (this being equal to the difference between the voltage VI 1 , Fig. 5a, and the voltage corresponding to the field J 1 , Fig. 5b) and the magnetic field produced in coil 15 by Vkl is shown by the broken line trace K<SP>1</SP>l (Fig. 5c). The sum of the fields produced by the deflection coils 5 and 15 therefore has the stepped shape shown in Fig. 5d which is a close approximation to the input waveform of Fig. 5a. A waveform similar to the latter is supplied to the subtracter 53 of the vertical deflection arrangement 51 and thus two stepped deflection fields are produced for horizontal and vertical deflection of the beam. The arrangement described allows the beam to be moved rapidly from one screen position to another at which "writing" is to be effected and has an advantage over known systems which required input signals corresponding to the voltage equivalent of the deflection field J 1  (Fig. 5b) and a voltage Vkl (Fig. 5c) to be generated separately (Fig. 1 and Figs. 4a to 4d, none shown). Fig. 3 shows a modification of Fig. 2 for use with a system employing deflection plates in the rapid deflection circuit and Fig. 6 shows a further modification in which two threshold devices 30, 80 supplied with reference signals S 0  respond to signals from the output of subtractors 3 and 53 indicative of the beam having come to rest at a "new" average position at which "writing" is to be effected and cause an AND gate 40 to signal the source E to commence the "writing" at such position.
Patent GB-858477-A (GB)
Title: Improvements in or relating to drinking straws
IPC: B65D77/28
Filed: 1959-07-16
Abstract: 858,477. Drinking straws. YAT, C. Y. July 16, 1959, No. 24439/59. Class 14 (2) A drinking straw 1 of telescopic construction has a mouthpiece portion 2 formed with a sealed outer end 3 and one or more apertures 4, 5 in its side wall, though which a beverage can be sucked through the straw from a container.
Patent GB-679843-A (GB)
Title: Improvements in anti-friction bearings
Inventor: BULL MURRAY ALEXANDER
IPC: F16D3/06
Filed: 1949-09-23
Abstract: 679,843. Securing gearwheels to shafts. G.K.N. GROUP SERVICES, Ltd. Sept. 19, 1950 [Sept. 23, 1949], No. 24450/49. Class 80 (ii). [Also in Group XXXIV] A driving connection between a sliding gear unit 15 and shaft 10 comprises ball raceway circuits having straight axially directed portions 19, 20, and curved end portions 22, each circuit being arranged so as to provide a path 19 in which the balls therein are contacted by both members in such manner as to prevent relative rotation of the members in both directions, and a return path 20 in which the balls are free from load, so that the two members may slide relatively to each other, and torque may be transmitted from one member to the other. A sleeve which is in two parts 16, 17 is rigidly fitted within the member 15, Fig. 3, and has four axial grooves 18 on its inner surface which co-operate with grooves 14 formed in the shaft 10 and provide the driving connection portions 19. Grooves 21 in the outer surface of the sleeve provide the return paths 20 for the balls. The end portions 22 of the ball circuits are formed in end plates 23 secured to the member 15. In a modification, a sleeve 32 is secured to a shaft 31, Fig. 6, having outer grooves 33 forming the loaded ball paths, the return ball paths being formed by grooves 36 in the shaft. Specification 679,844, [Group XXII], is referred to.
Patent GB-961595-A (GB)
Title: Pressed article with smooth take-up curved zones
IPC: B65D1/34
Filed: 1961-07-06
Abstract: 961,595. Cooking vessels, plates, trays. R. H. CARSON. July 6, 1961, No. 24488/61. Heading A4A. [Also in Divisions B6 and B8] A flexible walled dish or tray as formed in Specification 888,280 comprises concave convex surfaces wherein the concave surface has a plurality of regularly spaced apart lines extending thereacross defined by abutting shoulders of the wall, the convex surface being interrupted by ribs centred longitudinally over said lines.
Patent GB-406934-A (GB)
Title: Improvements in actuating or controlling devices for electric apparatus
IPC: H01H3/10
Filed: 1933-09-04
Abstract: 406,934. Actuation of electric switches and other appliances through walls. JUNGHOLM, K. J., 103, Sankt Eriksgatan, Stockholm. Sept. 4, 1933, No. 24520. [Class 38 (v).] To enable a switch D or other electric appliance within a room to be operated from outside the room, an actuating shaft passes through a hole in the wall and to facilitate ready mounting of the shaft, it is made up of two portions or journals 9, 10 which are rotatable in discs 5 secured to the wall at the ends of the hole, the journals 9, 10 being either coupled directly together (Fig. 4) or coupled through an intermediate shaft 15 (Fig. 2) so that they can rotate together and yet are readily separable. Fig. 11 shows one form of coupling. The device may be used in cases where there is an intermediate room between the switch room and the operating room, and where the axis of the switch is not in alignment with the actuating shaft, suitable intermediate shafting and gearing being provided.
Patent GB-207893-A (GB)
Title: Improvements in or relating to concrete roofs, partitions and like structures
IPC: E04B5/40
Filed: 1922-09-11
Abstract: 207,893. Rogers, R. H., and Perry, T. Sept. 11, 1922. Slabs; metal building slabs; roofing slabs.- Slabs for roofs, partitions, and other parts of buildings are reinforced by a corrugated metal sheet to one or both sides of which are secured, across the corrugations, metal strips 11, 12 by spot-welding. The edges of the upper strips are preferably bent up and down at intervals, as shown. The body of the slabs may consist of concrete 13 and plaster 14, or rubber-mixing on both sides.
Patent GB-425119-A (GB)
Title: Improvements in or relating to devices for removing scale from boiler tubes and the like
IPC: F28G3/14
Filed: 1933-09-05
Abstract: 425,119. Tube cleaners. ALLEN, J. J., Cemetery Lodge, Crook, Co. Durham. Sept. 5, 1933, No. 24607. [Class 99 (ii)] A device for removing scale &c. from boiler tubes &c. comprises a head 1 which is adapted to be secured to a flexible rotary shaft and is provided with cutting discs 8 which are mounted on the projecting ends of spindles 4 passing through a flange 7 on the said head. The spindles 4, which are preferably circumferentially spaced around the head, are set at an angle to the axis of the head so that the overall diameter of the device may be adjusted by varying the number of cutting discs on each side of the flange 7. The cutting discs are all of the same diameter and may have serrated, toothed or sharp cutting edges ; further they are freely mounted on the spindles 4 and have no lateral movement thereon. The flange 7 is preferably provided with bushes 11, which may be replaced when worn, for the spindles 4. The Provisional Specification describes also a device having the spindles parallel to the head axis, with, if desired, cutting discs of varying diameters.
Patent GB-242756-A (GB)
Title: Improvements in golf clubs
IPC: A63B53/04
Filed: 1925-09-21
Abstract: 242,756. Jeeves, H. Sept. 21, 1925. Golf clubs. - The wooden head of a golf club is formed with a shallow groove H extending from back to front and weighted by three lead bullets A, B, C let into the bottom of the groove. The groove is filled in with a strip of ivorine.
Patent GB-836025-A (GB)
Title: Power band saw with improved coolant applicator
IPC: B23D59/04
Filed: 1956-08-13
Abstract: 836,025. Sawing. CONTINENTAL MACHINES Inc. Aug. 13, 1956 [Jan. 30, 1956], No. 24747/56. Class 145. Means for applying coolant to a power band saw comprises a tube 14 which is provided with a longitudinal slit 15 for the reception of the saw. The tube is attached to a support 13 by a clamp 12 ahead of the work zone. The slit 15 extends upwardly from the lower end of the tube to accommodate the full width of the saw, and is increased in width on the side nearest the work zone by notches 21. The lower end of the tube is covered by a hinged cap 18 held in the closed position by a spring thus allowing the saw to be inserted into the slot, and, the upper end is connected by a hose 17 with the outlet of a coolant pump. In operation the liquid coolant is fed to the tube 14 so that it maintains it filled and continuously covers the saw with coolant across its entire width ; the coolant is also directed upwardly into the gullet of the teeth by deflection from the cap 18. Specification 818,005 is referred to.
Patent GB-806736-A (GB)
Title: Improvements in or relating to motor control systems
IPC: H02P7/34
Filed: 1955-10-20
Abstract: 806,736. Automatic speed control. SQUARE D CO. Oct. 20, 1955 [Nov. 2, 1954], No. 24880/57. Divided out of 806,735. Drawings to Specification, Class 38 (4). The system described is the same as that in Specification 806,735 wherein the speed of a motor in a Ward-Leonard system is controlled through a pair of electronic circuits but the claims are directed to the switching to the input of the control circuit of the generator output when the connection between the generator and the motor is opened.
Patent GB-270560-A (GB)
Title: Improvements relating to spectacles
IPC: G02C5/22
Filed: 1926-10-07
Abstract: 270,560. Arnold, J. N. Oct. 7, 1926. Spectacles. - Spring controlled hinges, for use more particularly with tortoise-shell or like spectacle frames consist of two plates a, e, one being secured to the back of the frame c and the other to the inside of the side f, each of the plates being provided with eyed lugs d, h to carry the hinge pin i as shown and thus diminish rocking action. The tension spring m is disposed on the hinge pin i and connected in such a manner as to keep the side normally down over the back of the frame e.
Patent GB-732207-A (GB)
Title: Improvements in automatic electric regulators
IPC: H02J7/12
Filed: 1953-09-09
Abstract: 732,207. Automatic control systems. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Sept. 9, 1953 [Sept. 10, 1952], No. 24919/53. Drawings to Specification. Class 38 (4). The invention relates to current limiting by temperature dependent resistors, and is described with reference to battery charging and speed-control systems. Battery charging.-The rectifier supply to a battery is voltage-controlled by a series saturable reactor and current limitation is provided by a current-transformer energizing a thermonegative heating winding of a temperaturesensitive resistors or one diagonal of a bridge of temperature-sensitive resistors to vary an opposing control signal which is applied to the control winding or a secondary control winding of the saturable reactor, Figs. 1, 2, 3 (not shown). Speed control.-In an A.C. motor driven Ward-Leonard system, Fig. 4 (not shown), having the generator exciter controlled in accordance with the output of a tachometer generator driven by the W/L-motor, a current limiting signal is supplied to the exciter from an auxiliary supply through a negative temperature variable resistor heated from a currenttransformer in the drive-motor-supply.
Patent GB-662517-A (GB)
Title: Inlet guide rotor for radial-flow compressors
IPC: F04D29/28
Filed: 1949-09-28
Abstract: 662,517. Centrifugalcompressors. MASCHINENFABRIK OERLIKON. Sept. 28, 1949 [Nov. 1. 1948], No. 24945/49. Class 110(i) The blades of an inlet guide wheel for a centrifugal compressor are formed with integral roots which are inserted axially into the wheel hub. Each blade 1, Fig. 5, is formed integral with its cylindrical root 8, and is bent with the transition from the bent to the straight portion occurring along the line B. Grooves 11, Fig. 10, to take the roots 8 are formed in the rotor hub 2, curved rebates 15 being subsequently machined to conform to the bent parts of the roots. A caulking piece 6, Fig. 15, which may be secured to each blade 1, fills the space beside the bent part of the blade. A retaining ring 7 is provided.
Patent GB-302964-A (GB)
Title: Improvements in or relating to the process for the reduction of nitroanthraquinones
IPC: C07C225/34
Filed: 1927-09-22
Abstract: 302,964. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Sept. 22, 1927. Aminoanthraquinone derivatives. - Nitroanthraquinones and derivatives thereof are reduced by means of hydrogenated bases of the quinoline series. A diluent may be present which may be the oxidized product of the hydrogenated quinoline, in which case the hydrogenated quinoline is regenerated by catalytic hydrogenation. In examples, (1) 1 : 5 dinitroanthraquinoline is reduced by boiling with 1 : 2- 3 : 4-tetrahydro-2-methylquinoline in the presence of 2-methylquinoline and glacial acetic acid, whereby 1 : 5-diaminoanthraquinone is produced, (2) by heating 1 : 5-dinitroanthraquinone with 1 : 2 : 3 : 4-tetrahydro-2-methylquinoline to 125‹ C. crystals of 1 : 5-dihydroxylaminoanthraquinone deposit, but by boiling, the corresponding 1 : 5- diamino body is produced. The latter also results when the 1 : 5-dinitroanthraquinone is boiled with 1 : 2 : 3 : 4-tetrahydro-2-methylquinoline in the presence of pyridine. (3) 1 : 5-dichlor-4-nitroanthraquinone is reduced with 1 2 : 3 : 4-tetrahydro-2-methylquinoline by heating in the presence of glacial acetic acid to give 1 : 5-dichlor-4- aminoanthraquinone. (4) 1-amino-8-nitroanthraquinone is obtained by reducing 1 : 8-dinitroanthraquinone with 1 : 2 : 3 : 4-tetrahydroquinoline in the presence of glacial acetic acid. Hydrochloric acid, tetrahydronaphthalene and odechlorbenzene are also mentioned as suitable diluents that may be rused.
Patent GB-429868-A (GB)
Title: Improved safety razor blade and holder therefor
IPC: B26B21/20
Filed: 1934-10-23
Abstract: 429,868. Safety razors. ORR, L., 39, Berryhill Drive, Giffnock, near Glasgow, PRATT, G. O., 122, West Graham Street, and KEITH, A. B., 16, Aberdour Street, both in Glasgow. Oct. 23, 1934, No. 25049. [Class 30] A circular blade has a central aperture 12 from which radiate slits 13 terminating in holes 14. The cap 6 is formed with an annular boss 9 adapted to enter a depression 11 in the guard so that when the handle is screwed up the blade becomes dome-shaped.
Patent GB-620774-A (GB)
Title: Machine for finishing watch-cases
IPC: G04D3/02
Filed: 1946-08-22
Abstract: 620,774. Making watch-cases. OLIVIER, C., and KAENEL, R. VON. Aug. 22, 1946, No. 25059. Convention date, July 5. [Classes 83 (ii) and 83 (iii)] Lathes.-A machine for finishing watch-cases in which diamond tools are used, comprises a compound slide 6, 7 mounted on a base slide 4 capable of being swivelled about a pivot 5 perpendicular to the axis of the headstock spindle so as to move in an arc-shaped guideway 3, a vertically adjustable tool-holder 37 for finishing the flat end face parts of the bezel, and a horizontally and angularly adjustable tool-holder 50 for finishing the chamfers of the bezel. The slide 7 carries a tool-holder 8 for finishing the surface of the watch-case between the extremities of the strap attachment lugs and the shoulder of the bezel, the tool-holder 8 having a mandrel 9 which is adjustable about its longitudinal axis. The slides 6, 7 are operated by levers 17, 20 respectively, each of the levers having one end pivoted to the base slide 4 so that the latter can be swivelled. The headstock 29 which is adjustably mounted on a bed 27 is provided with a support 36 for the tool-holder 37 which is operable by a lever 41, and the bed 27 is provided with a lateral support carrying a guide 49 for the tool-holder 50 which is angularly adjustable about a pivot 47 and is operable by a lever 52. The movement of the slide 7 is limited by micrometer-screw gauge stops 16.
Patent GB-420767-A (GB)
Title: Improvements in and relating to transformer power regulation
IPC: H01F29/10
Filed: 1933-09-11
Abstract: 420,767. Transformers. WATSON, H. R., 33, Effra Road, GILSON, R. F., and GILSON, R. B., 6, Lancaster Road, both in Wimbledon, London. Sept. 11, 1933, No. 25072. [Class 38 (ii)] In a transformer which is regulated by a movable magnetic shunt, the latter comprises a laminated bar split diagonally and associated with means for displacing the parts 9, 12 whereby the bar may be wedged in adjusted position within a shell 6 located between the core limbs, and between the primary and secondary windings 2, 3. The means for displacing the shunt parts comprises a screwed rod 15 engaging a member 13 containing the parts, the rod being adapted to project outside the transformer casing. An additional fixed magnetic shunt 8 is provided to afford an additional fixed amount of leakage flux.
Patent GB-754619-A (GB)
Title: Skylights
Inventor: BOYD ROBERT ALLEN
IPC: E04D3/06
Filed: 1954-08-30
Abstract: 754,619. Daylight reflectors and refractors. OWENS-ILLINOIS GLASS CO. Aug. 30, 1954 No. 25101/54. Class 20(3). In the utilization of daylight to light an interior through an opening in the roof or ceiling four air/glass interfaces are interposed in a horizontal position between the daylight and the interior, the interfaces being positioned on parallel outer and inner walls and the interior face of the outer wall is constructed and arranged so as to transmit only light from the Northern sky and sunlight from low altitudes, sunlight from high altitudes being totally internally reflected and rejected back to the exterior. This may be accomplished by making that face in the form of a series of parallel prisms having an included angle of approximate.y ninety degrees and adjusting the position of the prisms so that they extend in an East-West direction with one surface forming an angle of approximately thirty degrees with the horizontal plane and extending upwardly in a Southerly direction. In the particular example shown the included angle P is exactly ninety degrees and the angle b<SP>1</SP> twenty-nine degrees ; this combination shows the passage of rays, L3, L<SP>4</SP> from low altitude angles a3 and L5, L<SP>6</SP> from Northern angles a<SP>4</SP>, and the total reflection of rays L<SP>1</SP>, L2 from high altitude angles a<SP>1</SP>, a<SP>2</SP>. Such a combination would be suitable for a latitude 42 degrees North. Examples wherein b<SP>1</SP> is 30 degrees exactly and 31¢ degrees are also given. Prisms having different included angles and being arranged at different angles to the horizontal can be formed on the same face or all the prisms can be similar but may have adjacent portions of the Southerly-sloping surface arranged at different angles to the horizontal. The range of included angles may be 82 to 98 degrees but other examples are given wherein the range may be from 60 to 87 degrees (particularly 75 degrees) and the angle with the horizontal may then be of the order 35 to 45 degrees. The inner and outer faces of the inner wall may comprise ribs, those on one face being at right angles to those on the other, or may comprise parallel rows of depressed pyramids those on one surface being diagonal to those on the other surface. A glass fibre layer may be arranged between the two walls.