baber/WOPTO huggingface dataset:
Patent GB-387885-A (GB)
Title: Improved continuous process for grinding and/or polishing glass plates and the like
IPC: B24B7/24
Filed: 1932-05-10
Abstract: 387,885. Grinding-machines. ECKERT, F., 5, Wilhemstrasse, Lichterfelde, Berlin. May 10, 1932, No. 13463. [Class 60.] Flat extended surfaces, surfacing and polishing.-Glass plates are carried on tables 3 in a continuous operation beneath grinding tools 1 or polishing tools 2, or both in succession, a series of reciprocating movements being superposed on the rectilinear feed movement of the work. The work tables may perform alternately long forward strokes a, Fig. 1, and shorter return strokes b, or a series of equal forward and return strokes may be periodically interrupted by a short return stroke or a long forward stroke to provide the feed movement. The length of the strokes may be varied in operation, and the difference between the forward and return strokes may be periodically varied. The tools may comprise a number of members each having a planetary motion. The feed of the tables may be derived from an endless chain, a hydraulic ram, or other means.
Patent GB-459778-A (GB)
Title: Conditioning of freshly quarried clay
IPC: B28C1/00
Filed: 1935-05-07
Abstract: 459,778. Electrophoretic separation of clay. BIRD MACHINE CO., Neponset Street, South Walpole, Massachusetts, U.S.A. May 7, 1935, No. 13465. Convention date, Jan. 18. [Class 41] [See also Groups II and X] A continuously flowing suspension of freshly quarried clay in water is subjected first to centrifugal action to rid it continuously of oversize impurities and then to combined centrifugal and electrophoretic action to separate the fine clay continuously in the form of a plastic mass. A second centrifuging step may be employed to separate the coarser clay before the suspension is subjected to the combined centrifugal and electrophoretic action. The plastic mass obtained in the final step may be continuously extruded into elongated bodies of small cross-sectional area and then dried. The initial suspension preferably has a solids content of at least 15 per cent and the plastic mass a solids content of at least 50 per cent. The suspension, which may contain a small amount of deflocculating agent such as sodium silicate and which may be allowed to stand for a short time in a settling tank to remove the very coarse impurities is delivered to the small end of a continuous flow centrifuge 10, of the type described in Specification 456,420, [Group II], comprising a frusto-conical shell and a propelling screw 11 which discharges the deposited solids, e.g. sand, quartz, mica, &c. at the small end. The suspension discharged from an annular trough 14 passes, if desired, through a screen 16, to a continuous flow electrophoretic centrifuge 18, preferably of the type described in Specification 456,353, [Group II]. This centrifuge comprises a frusto-conical shell and a propelling screw 19, an electric potential difference being maintained between the shell and the screw. The fine clay deposited on the wall as a plastic mass is continuously discharged by the screw and passes from an annular trough 20 through a conduit 22 to an extrusion machine 23 which extrudes it through a plurality of small apertures 24 to a continuous dryer 26 in which the drying is effected by currents of hot air. The extrusion and drying machines are preferably of the type described in Specification 459,777. If the initial suspension contains colouring impurities, e.g. ferric oxide, decolourizing chemicals, such as sulphurous acid, sodium bisulphite, hyposulphurous acid, or sodium hyposulphite, may be added and the suspension may then be rinsed with water or the dissolved decolourized impurities may be precipitated.
Patent GB-432309-A (GB)
Title: Improvements relating to roller closing die arrangements for use in stranding machines
IPC: D07B7/02
Filed: 1934-05-04
Abstract: 432,309. Machines for making wire ropes, cables, &c. PRITCHARD, R. E., 11, Warwick Road, Old Trafford, McALPINE, I. J., Rolvenden, Davyhulme Road, Urmston, and GLOVER & CO., Ltd., W. T., Trafford Park, Manchester, all in Lancashire. May 4, 1934, No. 13531. [Class 109] [See also Group XXII] A roller closing die arrangement for use in the manufacture of stranded conductors and the like comprises a carrier having a number of rolls of which the peripheral surfaces cooperate to form a shaped closing die and in which one of the rolls is made separate from and rotatable upon, a roll shaft which is itself rotatably carried in a support, the portion of the shaft on which the roll is mounted being made eccentric to the portion in the support for the purpose of adjustment. The stranding head is identical in construction with that described in Specification 434,506. The roll shaft 19, upon which the roll 2 freely rotates, has an eccentric portion 50, the throw of which may be arranged vertically or horizontally when the rolls are in the closed position. Adjustment is effected by a spanner on the end of the shaft 54 which turns the shaft 19 through worm gearing 51, 53. A pointer may be used on the worm shaft in conjunction with a scale to give the amount of adjustment.
Patent GB-1388992-A (GB)
Title: Electric inverters
IPC: H02M7/515
Filed: 1973-03-21
Abstract: 1388992 Inverting V G YATSUK 21 March 1973 13554/73 Heading H2F An inverter comprises a polyphase bridge of controlled rectifiers 1 ... 6 and a commutating capacitor 17 chargeable with alternate polarity via a single phase bridge of controlled rectifiers 13 ... 16 and connectible to the controlled rectifiers 1 ... 6 by means of a commutating bridge of controlled rectifiers 7 ... 12. The commutating capacitor 17 is charged from a supply Un. Reactive power is fed to a threephase supply by means of a further inverter comprising thyristors 34 ... 39 via transformer 40. In Fig. 1 (not shown) diode 19 is reversed and connected in series with inductor 18. In Fig. 7 (not shown) the D.C. sides of bridge 7 ... 12 are connected to the supply U1 via auxiliary thyristors and inverse diodes. Details of commutating one, a group of or all thyristors are described with the aid of waveforms (Figs. 4 and 6, not shown).
Patent GB-167854-A (GB)
Title: Improvements in boxes
IPC: B65D25/06
Filed: 1920-05-18
Abstract: 167,854. Thomas, B., and Thomas, E. May 18, 1920. Partitioned boxes; corner joints. - A metal box is provided with one or more removable and adjustable partitions each comprising a central grooved portion 1 engaging supports 2 formed with extensions engaging inside turnedover flanges 4 of the sides 3 of the box. The part 1 is formed by doubling a metal sheet and securing the folds together by rivets, spot welding &c. The box has dished ends 5 secured to the body by spot welding. Specification 109,145 is referred to.
Patent GB-808068-A (GB)
Title: Improvements relating to ceramic insulating materials
IPC: C04B35/16
Filed: 1956-05-03
Abstract: A ceramic composition comprises, in percentages, plastifying aluminium silicates 3-20; alkaline earth metal or beryllium compounds 0-3; talc 0-35; and a mixture of raw magnesite and silica 42-97.  Up to 10 per cent. of alkali metal compounds e.g. sodium felspar, may replace a corresponding amount of the magnesite-silica mixture.
Patent GB-861421-A (GB)
Title: Improvements in or relating to articles of rattan furniture
IPC: A47C5/02
Filed: 1959-04-22
Abstract: 861,421. Furniture frames. WONG, K. W., and WONG, C. W., [TRADING as WO SHUN CO.]. April 22, 1959, No. 13703/59. Class 52(2). Seats or tables of rattan are provided with rigid frames 1, preferably of metal, having lugs &c. 3 by which the rattan parts can be attached. A separate frame 6 for the seat or table top can be detachably secured by clips and 9, 10, 12 to the underframe.
Patent GB-1210704-A (GB)
Title: Mechanical power transmissions
IPC: F16H21/18
Filed: 1968-03-21
Abstract: 1,210,704. Stamping. F. B. HATEBUR A.G. 21 March, 1968 [29 March, 1967], No. 13742/68. Headings B3H and B3Q. [Also in Division F2] An ejector pin 10 on the carriage 1 of a crankdriven press is actuated by a cam 16 mounted on the carriage and rotated once per-reciprocation of the carriage by a drive from the press main crank-shaft 4. The crank-pin 3 of crankshaft 4 acts via a connecting rod 6 on the carriage 1, which carries a ram holder 7 on which is a ram 8 which co-operates with a die 18 to form a workpiece 19. A crank-pin 30, having crank arms 23<SP>1</SP> radially slidable in trunnions 24 supported in fixed bearings, has a throw equal to that of the crank-pin 3 of the main crank-shaft, and bears in a connecting rod 21 pivoted about the shaft 17 of cam 16 and having a length equal to that of the connecting rod 6. A planet gear 23, rigid with the crank-pin 30, meshes an idler gear 22 which in turn meshes a gear 20 on the cam shaft 17, gears 23, 22, 20 being of equal size. The cam 16 acts via a bell crank 12 on the ejector pin 10. Either, extensions of the connecting rods 6, 21 are connected by a coupling rod 26 as shown, or a gear (27) on the crank-shaft 4 is connected by an idler gear (28) to a gear (29) secured to one of the trunnions 24 (Fig. 4, not shown), gears (27, 28, 29) being of equal size. The cam 16 is arranged to actuate the ejector pin 10 during the latter part of the return stroke of the carriage 1. In a modification (Fig. 3, not shown) the crank arms (23<SP>1</SP>) are radially slidable in the crank-pin (30) and are rigid with the trunnions (24).
Patent GB-117273-A (GB)
Title: An Improved Claw Hammer.
Inventor: TWIDLE ALEXANDER STEPHENSON
IPC: B25D1/04
Filed: 1916-09-27
Abstract: 117,273. Twidle, A. S. Sept. 27, 1916. Hammers. - To increase the leverage for extracting nails, a claw hammer is shaped approximately as shown with a bulge 2 around the eye, the whole curve from the base of the nose or pane 4 to the tip 3 of the claw being a compound curve, the part extending from the eye to the point 2<a> having a substantially long radius and the part from 2a to the tip 3 having a comparatively short radius.
Patent GB-410968-A (GB)
Title: Improvements in rotatable lathe centres
IPC: B23B23/04
Filed: 1933-05-11
Abstract: 410,968. Lathe centres. HOFFMANN MANUFACTURING CO., Ltd., New Street, Chelmsford.-(Assignees of Bott, G. R. ; Stamford, Connecticut, U.S.A.) May 11, 1933, No. 13760. Convention date, July 30, 1932. [Class 83 (iii).] A rotatable lathe centre has a shank extending within a housing and provided with front and rear axially spaced cageless radial bearings of the needle roller type with a thrust bearing arranged between the spaced roller bearings. The rotatable centre 8 has a shank which extends within the housing 6 rotating therein by means of two sets of axially spaced needle rollers 15, 18 respectively and a thrust bearing 20. A valve 22 is provided for the supply of a suitable lubricant and a set screw 30 in the housing may be screwed down to engage the flange 11 thus holding the centre against rotation. A cover piece 27 carrying packing means 24 for retaining the lubricant fits over the front of the housing and is secured by a bayonet joint.
Patent GB-369460-A (GB)
Title: Improved machine for the manufacturing of electric primary cells for pocket-lamp andthe like batteries
IPC: H01M50/147
Filed: 1931-05-11
Abstract: 369,460. Galvanic batteries. HASSE, W., 12, Friesickestrasse, Weissensee, Berlin. May 11, 1931, No. 13876. Convention date, July 23, 1930. [Class 53.] A machine for filling sealing material such as pitch or paraffin into dry batteries consists of melting-vessels containing molten sealing material and provided with discharge-cocks. and of an intermittently moved endless chain carrying battery receptacles. While the chain is at rest, the receptacles stand under the discharge-cocks, and receive their charge of filling material. The battery receptacles are open while rollers which they carry are running over a rail, and at other times are closed to retain the batteries. In the apparatus illustrated in the Figure, receptacles 3 are mounted on an endless chain 1 driven by a gear 2, and remain open so long as rollers 17 run over a rail 16. There are two filling vessels 18, 19, each provided with stirrers, the first heated so that the pitch is only semifluid, and the second so that the pitch will spread uniformly over a previous layer. When the chain has made a unit movement forward, the receptacles come to stand under the discharging-cocks 4, 5, which are operated from the gear 2 by means of a shaft 10, eccentrics 6, 7, and rods 8, 9, whereby the required amount of filling substance is supplied to the receptacles. The discharge-cocks are closed as soon as the endless chain moves on. The closure of the receptacles after they have passed the second discharge-cock gives the batteries the required shape.
Patent GB-456071-A (GB)
Title: Improvements in or relating to electric cables
IPC: H01B9/02
Filed: 1935-05-13
Abstract: 456,071. Cables. PIRELLI-GENERAL CABLE WORKS, Ltd., 343, Euston Road, London, and BISHOP, J. L., Pine Haven, Melrose Road, Southampton. May 13, 1935, No. 13970. [Class 36] In a flexible cable, more particularly a trailing cable, in which the conductor or each or all of the conductors of the cable is provided with a pair of flexible metallic screens separated from each other by insulating material, each screen completely covers the surface of the cable over which it is applied and comprises helically wound wires which are in contact with one another throughout their length, the wires of the two screens being wound on the cable in the same direction. In the construction shown in Fig. 1, power cores 1 and an earthing core 2, each having an insulating sheath 3, are laid up about a tough rubber cradle 4 and are embedded in an inner tough rubber sheath 5 around which is applied an inner screen 6 consisting of helically wound wires in contact throughout their length. The screen 6 is covered by rubber insulation 7 over which is applied an. outer screen 8 consisting of wires wound similarly to those of the screen 6. A tough rubber outer sheath 9 completes the cable. The wires of the screens 6, 8 are wound in the same direction as the lay of the cores 1, 2 and each wire comprises a plurality of fine tinned copper strands. In the modified construction shown in Fig. 2, the inner screen is divided into two sections, comprising an under series of groups of wires 61 and an upper series of groups of wires 6<11>, the two series of groups being separated by an intermediate series of groups of strings 6<111> of fibrous, textile, or other non-metallic, tough and flexible material helically wound in a direction opposite to the wires of the screen, the wires groups of the upper series covering the spaces between the groups of the lower series. In further constructions each core of a multi-core cable is provided with a pair of the screens and the several screened cores are either enclosed in a tough rubber sheath or formed into a cable provided with a further double screen.
Patent GB-107496-A (GB)
Title: Improvements in Internal Combustion Engines.
Inventor: RIPER LEWIS CAESAR VAN
IPC: F01L5/10
Filed: 1916-10-02
Abstract: 107,496. Riper, L. C. van. Aug. 11, 1916, [Convention date]. Valves.-A four-stroke-cycle engine having oppositely-moving pistons 3, 4 has its inlet and exhaust ports 8, 9 controlled by the conjoint action of a rotary cylindrical valve 6 and a sliding sleeve 5, the ported end of which is protected from heat by a depending liner 7. The rotary valve may have one or two ports in its periphery, its speed of rotation being determined accordingly. The exhaust and inlet ports are shown at 23, 24 re- Spectively.
Patent GB-1382381-A (GB)
Title: Tape recording and reproducing apparatus
IPC: G11B15/44
Filed: 1973-03-23
Abstract: 1382381 Feeding record tapes; reversible reel drives COMPUR-WERK GmbH & CO 23 March 1973 [14 April 1972] 14062/73 Heading G5R A reversible reel-drive tape transport for cassette apparatus, in which for forward transport one reel spindle 30w is driven by a friction drive and for reverse transport one other reel spindle 34w is driven through gearing, includes a movable flywheel 20 driven from a motor 16 and having a pin 22r and a toothed wheel 22 mounted thereon and rotating therewith, the flywheel being movable so that either the pin 22r frictionally engages a wheel 30 on the takeup shaft 30w, or teeth 22z of the wheel 22 mesh with a pinion 32 driving a gear 34 on the supply spindle 34w. The flywheel 20 is moved by a lever 28 which is pivoted about the spindle 34w and has an end 28b engaged by cam surfaces 40b-40d of a manual slide 40 (see Specification 1,382,382). The lever 28 is biased to the forward drive position (clockwise) by a spring 56 and by drive belt 18, which is elastic. The slide 40 also actuates: a lever 44 for moving a pre-erase head (not shown) into operation during recording; a main switch 42; and a switch 54 for switching an amplifier between record and playback modes. The wheel 22 is coupled to the flywheel 20 through respective toothed surfaces 22s, 20s thereof which are held in mesh by a spring 24. This drive connection slips when the spindles 30w, 34w stop at the end of a tape, providing an audible warning.
Patent GB-501491-A (GB)
Title: Improvements in and relating to die or pressure casting machines
IPC: B29C45/70
Filed: 1938-05-11
Abstract: 501,491. Injection-moulding machines. ECKERT & ZIEGLER GES. May 11, 1938, No. 14084. Convention date, Sept. 14, 1937. [Class 87 (ii)] In injection-moulding machines for thermoplastic materials wherein the material is forced by a plunger 23 into a two-part mould 9a, 9b, one mould part 9a is moved to open and close the mould by a toggle 10, 12, which is operated by hand, and the plunger 23 is independently actuated from a power-driven rotating spindle 39 through a second toggle mechanism 28 ... 31. The spindle 39 may be driven from an electric motor 46. The mould parts are carried by cross-pieces 7, 8, slidably mounted on rods fixed in the machine frame. The toggle 10, 12 closes the mould and forces it against springs 20 on to the nozzle 18 of a cylinder 19 wherein the plunger 23 works. The cylinder 19 may be electrically heated. The plunger 23 is carried by a cross-piece 27 slidable on rods and actuated by links 28 and bell-crank levers 29, 30 forming the second toggles. The levers 29, 30 are actuated by links 31 connected to a cross-piece 32 slidable on rods and moved through springs by a further cross-piece 37 which has a screw-threaded connection with the rotating spindle 39. Control bars on the cross-pieces 32, 37 engage switches to cut off the motor 46 at the end of each stroke. If an obstruction for high resistance is met during the stroke, the springs between the cross-pieces 32, 37 are compressed and a control bar on the cross-piece 37 engages a switch on the crosspiece 32 to cut off the motor.
Patent GB-627447-A (GB)
Title: Improvements in or relating to coupling means for affixing stand-pipes and the like to hydrants
IPC: E03B9/12
Filed: 1947-05-28
Abstract: 627,447. Locking nuts. MUNDELL, F. May 28, 1947, No. 14158. [Class 89 (i)] [Also in Group XXVIII] An adapter for converting existing hydrants to standardised stand-pipes is formed as a nut a<SP>1</SP> at one end screwing on the hydrant, the nut being slotted at a<SP>3</SP> and provided with a screw a4 to draw the sides of the slot together for locking the adapter to the hydrant. A resilient packing washer a<SP>5</SP> limits the extent of the locking action. In a modification the adapter is held in place by a nut screwing on its outside and provided with arms engaging claws on the hydrant, the nut being locked by the means a<SP>3</SP>- a<SP>4</SP> described above.
Patent GB-592906-A (GB)
Title: New or improved holder for match boxes
IPC: A24F27/08
Filed: 1945-06-05
Abstract: 592,906. Match-box holders. BURROUGHES, W. J. June 5, 1945, No. 14199. [Class 18] A holder for a box of matches has a mounting, adapted to be pushed into the end of the box, and provided with a clip 9 and spring arms 7 to prevent the removal of the box. The mounting, which may be fixed to any suitable base, comprises a metal plate 6 secured between a rectangular block 2 and a semi-cylindrical body 1. The plate 6 is slightly longer than the block 2 and the inside width of the box, and is curved downwards in the form of an arc. The clip 9 is bent up from the plate over the top of the block so that the end of the drawer may be inserted beween the block and the clip to prevent the drawer from being withdrawn. The cover is then permitted to slide over the mounting against the edges of the spring arms 7 and is prevented from being removed by the edges of the arms pressing against the inside of the walls.
Patent GB-183635-A (GB)
Title: Improvements in or relating to bedsteads and the like
IPC: F16B12/56
Filed: 1921-05-21
Abstract: 183,635. Gale & Sons, Ltd., G., Ward, W. H., and Hodgson, J. H. May 21, 1921. Mattresses.-A wire spring mattress a is secured to end angle-bars c, which are adapted to engage with the L-shaped slots formed in the corner brackets d. These bracket members have each an extended arm d<5> with a socket d<8> with which engage the side bars e. When the parts are thus assembled, the structure is held together by the tension of the wire mesh of the spring mattress. The members d have each a keyhole stop d<2> for engagement with the pins or studs on the bedstead frame. This arrangement allows the mattress to be secured in a frame either of the same or of a different width. The wire mesh member a is secured to the end bars c preferably by the means described in Specification 182,277.
Patent GB-623917-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H21/02
Filed: 1947-05-28
Abstract: 623,917. Mechanical switches without quick action; indicators for switches. O'SHEI, W. E. May 28, 1947, No. 14230. [Class 38(v)] The operating lever or handle and the rear wall of a switch casing are made of translucent material, a lamp being arranged behind the switch so as to illuminate the handle. The rear wall 2, Fig. 1, carries terminal contacts 5c co-operating with contacts 6 on a three-position plate 7 slidable on a pin 18 into engagement with the contacts by means of a spring 19. The handle 12 has a projection 14 engaging between two ears 16 on the plate 7 so as to couple them together. The lamp 24 may be permanently alight or may be lit in certain switching positions only and more light may be passed to the handle through holes in the plate 7. In Fig. 3, the circuit of lamp 53 is controlled by parallelled pairs of contacts 38, 39 and a bridging contact 50 on a pivoted switch handle 40. Pairs of contacts 34, 35 are adapted to be selectively bridged by a rivet 43 to control vehicle direction indicators. Ears 46 locate the handle in its central position. The lamp may alternatively be housed in the casing behind the handle with its enamel cap shielding some of the light. Reference has been directed by the Comptroller to Specification 624,508.
Patent GB-882967-A (GB)
Title: Improvements in or relating to a monitoring console for multiple communications printers
IPC: H04L13/02
Filed: 1960-04-22
Abstract: 882,967. Typewriters &c. TELEPRINTER CORPORATION. April 22, 1960 [July 30, 1959], No. 14269/60. Class 100(4) A monitoring console or wheelable cabinet supporting six teleprinters is constructed so each printer is arranged compactly one above the other but having a generally upright paper support 30 to enable the printing to be read. Each printer has a web supply roll 36 and each web is guided over rollers 40, 41, 42 to a platen 44, then it has an upright run 50 over rollers 52, 54, 58 to a bin or a take up roller 38. The rollers 52, 54 are mounted on brackets which can pivot to second, snap over position, if the above printers are to be removed. Plug-in connections 61, 62 are provided, the shelves may be removable, and switches are provided to connect the printers separately. A transmitter 24 and table shelf 110 may also be incorporated.