baber/WOPTO huggingface dataset:
Patent GB-721931-A (GB)
Title: Hydraulic accumulator
IPC: F15B1/24
Filed: 1952-09-24
Abstract: 721,931. Hydraulic accumulators. ORD, L. R. Sept. 24, 1952 [April 3, 1952], No. 23960/52. Class 69 (2). A hydraulic accumulator comprises two separate chambers 20, 22 in which a differential piston 28, 26 is free to slide, the larger piston 28 sliding in the chamber 22 which is connected to the hydraulic circuit and the smaller piston 26 passing through a gland 25 in a partition 24 into the chamber 20 containing oil which is compressed to store energy. The piston 26 may have an extension passing out through a gland in the end of the cylinder 20.
Patent GB-589303-A (GB)
Title: Improvements in or relating to electron discharge tube reactances
IPC: H03J7/04
Filed: 1944-12-01
Abstract: 589,303. frequency modulation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 1, 1944, No. 23993. Convention date, Dec. 1, 1943. [Class 40 (v)] [Also in Group XXXV] In a thermionic reactance wherein a phase shifting network, comprising a condenser in series with an impedance, is connected across the anode cathode of a thermionic valve and the control grid is connected to the junction point of the condenser and impedance, the impedance consists of a circuit which presents a substantially pure resistance over a wide frequency range so that the device simulates a substantially pure reactance throughout that range. Fig. 2 shows a reactance valve 40 adapted for angular velocity modulation, of the output of an oscillator the tank-circuit of which, Fig. 1 (not shown) is connected across the points X-X. The anode and control grid of valve 40 are coupled by a condenser C1 the reactance of which is large compared with the resistive impedance connected across the grid and cathode at points A, B. This impedance comprises a circuit 41 tuned to the carrier or mean frequency of the oscillator and a circuit 43 coupled thereto and also tuned to this frequency. Since the circuits 41, 43 are resonant at the midfrequency of operation the impedance between A and B is nearly purely resistive and since the characteristic of the tuned circuit is broadened by circuit 43 and resistance 47 the resistive impedance across A, B is substantially constant over a wide range. 42 and 45 are coupling condensers presenting substantially zero R.F. impedance. To cover a wider modulation range, the resistive impedance across points A, B, Fig. 3, may comprise a known MM type network consisting of a shunt branch 52-54, a mid-half series MM transducer 55-58 and a MM shunt branch 59-64 as shown on page 311 of the Bell System Technical Journal for April 1931. The input reactance of the tube 40 is taken into considera.- tion in determining the network constants, so that the network presents a substantially constant resistive impedance at all frequencies. Figs. 2A, 3A (not shown) disclose modifications of the arrangements of Figs. 2, 3 respectively wherein the modulating signals are applied to the suppresser (Fig. 2A) or screen grid (Fig. 3A) rather than to the control grid. The invention is applicable to other uses, e.g. automatic frequency control.
Patent GB-463413-A (GB)
Title: Improvements in or relating to means for supporting confectionery jars, cordial containers and the like
IPC: A47F5/00
Filed: 1935-08-28
Abstract: 463,413. Tilting-appliances for confectionery containers &c. BARNET, J. L. Aug. 28, 1935, No. 24019. [Class 21] [Also in Group XVIII] A confectionery jar, cordial container, &c. is supported for tilting by a vertical member 2 secured to a wall or standard, and having pivotally mounted thereon a fitting 4, the lower end 4x of which passes beneath the container while the upper extremity 4y engages the shoulder of the container, an intermediate member 5 embracing the middle. The container is supported by a spring 6 having a pivot 7 which presses the container against a lid 3 carried by an arm 2x on the member 2, and which, when the container is tilted, abuts a projection 2y on the member 2. The lower part of the spring 6 is guided by a slot at 8 in an extension 9 of the member 2. A number of such tilting arrangements may be provided around a column or standard.
Patent GB-332765-A (GB)
Title: Improvements in diving apparatus
IPC: B63C11/44
Filed: 1929-08-06
Abstract: 332,765. Davis, R. H. Aug. 6, 1929. Diving-chambers. - A " decompressing " chamber for divers has an entrance at its lower end and means for supplying compressed air so as to maintain it always free from water, and means for gradually releasing the air pressure. Fig. 1 shows a cylindrical chamber a and hinged top and bottom doors e, f fitted so that internal pressure tends to close them tightly. An airsupply tube g and a cable for telephonic and lighting purposes are fitted. Inside the chamber is a cylinder j of compressed oxygen, and gauges k, l. Specifications 294,749 and 306,794 are referred to.
Patent GB-447740-A (GB)
Title: Improvements in and relating to vibration measuring devices
IPC: G01H1/00
Filed: 1934-08-21
Abstract: 447,740. Vibration detectors. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Aug. 21, 1934, No. 24114. Void [Abridged as open to inspection under Sect. 91 of the Acts, Feb. 25, 1935]. [Class 40 (iv)] In apparatus for measuring the vibration velocity of a source of noise 10, the restoring force between the moving coil 22 and the magnet structure is provided by short column springs 29 and the play of the coil is limited as by a rod 30, Fig. 1. In a modification, Fig. 4, the column springs are supplementary to a pair of cross-shaped blade-spring structures 37. In the arrangement shown in Fig. 1, the rod 20, by which the motion of the body 10 is transmitted to the coil, is supported in self-oiling bearings. The rod 20 may be provided with a disc 42, Fig. 6, to adapt the instrument for use as a stethoscope. Fig. 2 shows the manner in which the ends of the springs 29 are arranged. The Specification includes a theoretical discussion of the principles governing the invention.
Patent GB-629232-A (GB)
Title: Improvements in or relating to covers or closures for containers, in particular ducts or channels
IPC: B65D39/02
Filed: 1945-09-18
Abstract: 629,232. Fastenings for boxes &c. STORY, J. G., and CLARK, J. S. Sept. 18, 1945, No. 24114. [Class 44] [Also in Groups XVII and XXXVI] A cover 6 is held on a duct or channel, or a food-container &c. 2 by a screw passing through a hole 14 and into a threaded hole in a rivet 11 which joins a spring-strip 9 to a stiff backing-plate 10, the strip 9 extending beyond the backing- plate and into slots 5 in the rim of the channel into and from which it may be snapped by deflecting the strip when the cover 6 is detached. Lugs 12 prevent the plate 10 rotating. In a modification, the strip 9 has a tongue extending at each end to pass through holes in the rim, either when the strip is flexed or if the backing-plate is forced past the lugs 12. As applied to a cylindrical container, the plate 10 and strip 9 are replaced by discs, the spring disc entering an annular groove, e.g. to form a substantially airtight closure which may receive a central screw or clip from a dished and flanged outer cover. The spring disc may be of rubber and may have radial slits. The discs may aid in forcing out the contents of a container if its other end be opened, e.g. by a tin-opener.
Patent GB-1212427-A (GB)
Title: Improvements in or relating to disc brakes
IPC: F16D55/00
Filed: 1968-05-21
Abstract: 1,212,427. Disc brakes. ALFRED TEVES G.m.b.H. 21 May, 1968 [29 Sept., 1967], No. 24137/68. Heading F2E. In a floating-caliper disc-brake, the caliper 1 is held by leaf-spring 11 spanning the padremoval-slot and passing over the pad-retaining- pins 8 and under the limbs of an inverted U- shaped carrier-member 4. The U-part of the carrier-member embraces the disc 3 and has an aperture to accommodate and guide the brake pads. As shown, the leaf-spring is of cruciform shape and the cross-arms 12 bear on the brake-pad back-plates to prevent them wobbling.
Patent GB-1456065-A (GB)
Title: Oxygen-acid leach process
IPC: C01G3/12
Filed: 1974-05-31
Abstract: 1456065 Oxygen leach process FALCONBRIDGE NICKEL MINES Ltd 31 May 1974 24151/74 Addition to 1378051 Heading C1A Metal values are recovered from particulate sulphides containing at least two metals selected from nickel, copper and precious metals by leaching with oxygen-containing gas an aqueous slurry of the particles in an acidic cuprous ion bearing solution whose redox potential increases on feeding gas thereto and decreases on feeding of sulphide particles. The redox potential of the slurry is monitored and the gas feed controlled relative to the particle feed so as to maintain the potential at or below a selected value at which one metal value is leached preferentially with respect to the other metal values contained in the sulphide particles. The oxygenacid leach combination can also be used for the dissolution of copper free matte as taught in the main patent (British Patent Specification 1,378,051) for chlorine leaching.
Patent GB-1261157-A (GB)
Title: Rotary brush
Inventor: CHARVAT VERNON K
IPC: A46B7/08
Filed: 1970-05-19
Abstract: 1,261,157.  Rotary brushes. SHERWINWILLIAMS CO. May 19, 1970 [June 26, 1969|, No.24248/70. Heading A4K. A rotary cup brush is provided with a plastics material sleeve 3, e.g. polychloroprene, which is folded over at one edge, said edge engaging the wire bristles. The collar may comprise a plurality of plies of folded irradiated polyethylene which shrinks on heating so that the sleeve 3 is tightly secured about the bristle holder 1.
Patent GB-1346504-A (GB)
Title: Switching means for simulating the electrical properties of  a solar cell
IPC: G06G7/63
Filed: 1971-04-19
Abstract: 1346504 Simulating solar cells MESSERSCHMITT-BOLKOW-BLOHM GmbH 19 April 1971 [16 April 1970] 24265/71 Heading G4G A circuit for simulating a solar cell comprises a transistor T having an emitter resistor R 4 , a collector resistor R 2  and a resistor R 3  connected between the emitter and collector, the transistor and resistors being connected in an output line of a power supply delivering a voltage U o  to give an output voltage U s  corresponding to the output of a solar cell receiving radiation whose intensity is represented by a control potential E 1  applied through resistor R 1  to the base of the transistor. A modulation voltage E 2  can be applied to a second base resistor R 5 . The power supply preferably supplies rectified multi-phase alternating current smoothed by a non-capacitative circuit.
Patent GB-641537-A (GB)
Title: Improvements in vortex separators for paper pulp
Inventor: VICKERY FREDERICK WILLIAM
IPC: B04B5/12
Filed: 1948-09-15
Abstract: 641,537. Rotary pumps. VICKERY'S, Ltd. Sept. 15, 1948, Nos. 24272 and 26763. Addition to 620,619. [Class 110(ii)] [Also in Group II] A centrifugal separator for paper pulp has an outlet 24 through which unwanted matter is extracted by a variable-speed pump 27 of the meshing-screw type. A helical rotor 44, in a helical bore 45, one being metal, the other rubber. are relatively eccentric to each other. The rotor is of circular cross-section and the stator ovalshaped. Driving means for the rotor comprises bevel gearing 51, 52 and a connecting rod 54 with cross-pins 56, 57. A shield 58 prevents matter discharged from the pump from fouling the bevel gears. Inspection windows 21, 22 may be inserted in front of the pump. A battery of pumps may be driven off a common shaft 59, each by a belt 60 which can be coupled to one of a number of pulleys 61. An electric motor 63 drives the main belt 62 through a variable-speed gear box 64. The pump may be arranged at right angles to the separator by means of an elbow, Fig. 7 (not shown).
Patent GB-158190-A (GB)
Title: Improvements in and relating to feed mechanism for the record material of machines for recording, totalling and compiling cash and other sale transactions by means of perforations in said record material
IPC: G06C11/08
Filed: 1919-10-27
Abstract: 158,190. Haddan, A. J. H., (National Cash Register Co.). Oct. 27, 1919. Feeding webs.-Relates to feed mechanism for the record strips of cash registers of the kind described in Specification 158,083, [Class 106 (i), Calculating &c.], for producing a perforated record strip for subsequent use in an " auditing " machine as described in Specification 158,084, [Class 106 (i), Calculating &c.]. In order to ensure accuracy in the feed of the perforated strip the feed holes at the side are punched simultaneously with the record holes, and the punches therefor are moved, while in the holes, through the requisite distance, a sleeve being fitted round the punch to grip the paper against the die, so as to prevent tearing; means for operating the grip being also provided. The strip passes from a supply roll 497, Fig. 9, past the recording punches 440, Fig. 4, and feed hole punches 535 to a storage roll 498. This is slid over and splined on a sleeve 504, Fig. 8, which is fast on bushes 505 loose on a shaft 506. Between the bushes 505 are a pair of washers 516, 517 to which are attached the ends of a spring 515 in compression, the former being fast to the shaft. The shaft has projections 510 to engage the slotted ends of rods 514 journaled in the hubs 445 of the levers 444, the left one of which is fast to a ratchet wheel 520 engaged by a pawl on an arm attached to a pinion 523 loose on the hub of the ratchet wheel and driven bv a toothed arm 524 on a shaft 525 rocked bv a cam on the main shaft 97. In addition to this frictional take-up feed, the strip is uniformly fed by the punches making the feed perforations. These punches 535. Fig. 4, are carried in frames 536, Fig. 6, sliding on pins 537 secured in slides 538 working in grooves in the frames 443, 448 carrying the recording punches. Around the punches 535 are placed rollers 546 which grip the record strip against the die when the punches are pressed home by means of pins 548 on the frames 536 engaging slotted levers 550, 553 operated by cams on the main shaft 97. While thus engaging the strip the punches and rollers are drawn down to feed it by means of pins on the slides 538 engaging arms 545, 524 on the rock shaft 525, and the punches are withdrawn for the return movement of the slides 538. When the storage roll 498 is to be removed, handles 575 on either side are manipulated to rock shafts 559 and remove locking arms 558 to free the rods 514 for removal; at the same time cams on the shafts 559 rock the levers 553 so as to withdraw the punches from the strip and free it, while the runners on the ends of the levers 553 engage offsets in their cam grooves so as to lock the main shaft 97 and thus the machine against operation during replacement of the roll.
Patent GB-462300-A (GB)
Title: Improvements in and connected with cases for playing cards
IPC: A63F1/10
Filed: 1935-09-02
Abstract: 462,300. Buckles ; attaching articles to the person. STOREY, W. H. Sept. 2, 1935, No. 24460. [Class 43] [Also in Group XVII] A box for playing cards can be secured to a support situated below the box by means of a spring clip, similar to a cyclist's trouser clip, or a rubber or other resilient band 4, the clip or the band engaging in recesses 2 or slots in the box. The box has a lid by which it can be closed for transport and it is supported in a substantially horizontal position so that cards can be played into the box. The band may be in two parts connected by a buckle and the two ends engage in buckles 3 which hook over the bottoms of the recesses 2. In one modification, the ends of the band pass through slots near the bottom edges of the side walls and are secured to the base of the box or are hooked together, and in a further modification, two recesses 2 are formed in each side wall and an endless band is loopod over the lug left projecting between the recesses. Where a spring clip is employed, the clip passes through slots in the base of the box. According to the Provisional Specification, the box can be attached to the leg of a person.
Patent GB-882767-A (GB)
Title: Improved electrode terminal for electrolytic condensers
IPC: H01G9/00
Filed: 1960-07-14
Abstract: 882,767. Electrolytic condenser electrodes. DUNLEAVEY, F. S., and RINES, R. H. July 14, 1960, No. 24545/60. Class 37. The electrode terminal strip of an electrolytic condenser is of a metal selected from the group containing aluminium and tantalum and the main portion of the strip i.e. that inside the housing and the major portion outside the housing is provided with an electrolytically formed oxide of the metal, the terminal end 5 being coated with a highly conductive easily solderable metal e.g. copper or tin-covered copper applied by known coating techniques e.g. evaporation, electroplating, spot welding, spraying and metal rolling. The terminal 7 is brought into firm contact with the electrode by aperture punching, staking or clinching.
Patent GB-606522-A (GB)
Title: Milling machines
IPC: B23Q7/12
Filed: 1945-09-21
Abstract: 606,522. Milling-machines making fastenings. DZUS, W. Sept. 21, 1945, No. 24574. [Classes 83 (ii) and 83 (iii)] A milling-machine is provided with a rotating tool-supporting spindle, a shiftable actuator, whereby the spindle may be advanced to an operative position or retracted, and means operable by said actuator, whereby the spindle may be locked in position. A machine for milling the spiral slots 14, Fig. 16, in fastener blanks comprises two opposing cutters 112, Fig. 8, each carried in a spindle 86 driven by a pulley 103 and mounted in a sleeve 64, which is provided on its lower surface with a rack 65 meshing with a gear 66'carried in the bearing 60. The bearing 60 is split at 73 so that the sleeve 64 may be clamped in position by a bolt 79 passing through the centre of the gear 66. An actuator 77 is formed with a hexagonal hole 76 to fit flats 83 on the bolt-head and similar flats 75 on a collar 71 keyed to the gear-shaft 67. The actuator may thus be turned to unlock the bolt, moved forward to turn the gear 66, and returned to relock the sleeve 64 in position. Each pulley 103 is provided with holes 110, one of which engages a resiliently mounted pin 107 to lock the spindle when retracted to the inoperative position. Work-holders.-The blank is placed in a holder 39, Fig. 4, keyed to a slide 31 which is held advanced by a spring 37 and is mounted in a bracket 22 of the machine. Opposed slots 41 are provided in the holder 39 to accommodate the milling-cutters. Axial spindle feeds.-The blank is fed past the cutters by a screw-driver 48, Fig. 17, which engages the slotted head. The screw-driver is mounted in a bearing-sleeve 45 clamped in a bearing 44 and is actuated by a hand-lever 58, Fig. 2, spiral motion being imparted to it by a roller 57 engaging a cam-slot 54 in the sleeve 45. Gauging means are provided for adjusting the screw-driver accurately to correlate the positions of the head-slot and the spiral slots 14 in the fastener and comprise a collar 141 sliding on the sleeve 45 to give angular adjustment, and a rotating collar 142 to give axial adjustment. Angular adjustment is made with respect to a mark 143 on the bearing 44; axial adjustments are made from some known position. Lubricating cutting-tools.-Oil is conveyed through a central bore 12, Fig. 4, in the workslide 31 and a bore 120 and the slots 41 in the work-holder to the cutters. Chips and oil are then discharged to a chute 124. Large chips are conveyed to a container 129, Fig. 2. The small chips and oil fall through a grating 125 to a chute 130 and are conveyed to a container 131 provided with a perforated base. The oil passes on to a grating 136 to drop into a container 133, Fig. 11. Any fine particles left are deposited therein and clear oil flows to a sump 134. Chucks.-The milling-cutter 112, Fig. 8, is held in a bevel-closing collet 95 which is tightened by an arbor 94, threadably engaged therewith and having a head 97.
Patent GB-800166-A (GB)
Title: Improvements in or relating to method and apparatus for addressing a plurality of packages to the same addressee
IPC: B41L27/26
Filed: 1956-08-10
Abstract: 800,166. Stencils; inking apparatus. MOONEY, L. R. Aug. 10, 1956, No. 24617/56. Class 100(2). A stencil device comprises an adhesive strip 14 having on the underside a coating 15 of a pressure sensitive non-drying reusable adhesive, to which is attached one edge of a sheet of stencil paper 16 and also a sheet 17 of carbon paper so that the top marginal portion of the adhesive strip 14 is left exposed. The sheet 17 is provided with a carbon coating 18 except on the edge which overlies the strip 14, and a protective sheet 20 is initially provided. In use the sheet 20 is stripped off and the device attached by the exposed portion of the strip 14 to an invoice. The stencil is then cut on a typewriter and simultaneously an identical carbon impression is produced on the invoice. The device is then removed from the invoice and the carbon sheet 17 stripped off thus leaving a stencil by means of which further identical addresses may be printed on the invoices. For this purpose an applicator 9 is provided having a porous resilient ink retaining pad 10 and a closure shield 11 mounted thereon. The applicator is adapted to fit in a well 12a of a stand 12 which also has a recess 12b for an ink container 13.
Patent GB-1192891-A (GB)
Title: Improvements in and relating to Wrapping by Means of Heat-Shrinkable Plastics Film
IPC: B65B53/02
Filed: 1968-05-23
Abstract: 1,192,891. Heat-shrinkable plastics film wrappers. KALLE A.G. 23 May, 1968 [24 May, 1967], No. 24674/68. Heading B8C. A continuous band of heat-shrinkable plastics film, e.g. of a polyolefin (e.g. polyethylene), a polyester or plasticized P.V.C., is located around goods, e.g. a stack of postcards or envelopes, and the band is locally heat-shrunk so that it tightly surrounds the goods. The part of the band which is not heat-shrunk may carry printed matter. The band may be formed from two sections of film, which are joined along two parallel seams extending across the width of the band. A hot-air blower or an infra-red radiator may be used to heat-shrink the desired part of the band. The plastics film may be transparent, translucent, transparent coloured or opaque coloured. The film thickness may range from 15-200 microns.
Patent GB-188638-A (GB)
Title: Improvements in winding-frames
IPC: B65H54/28
Filed: 1922-09-12
Abstract: 188,638. Malassine A., and Juslin, A. Nov. 10, 1921, [Convention date]. Tension arrangements. - In a cross winding machine, a "taking-up" mechanism is provided to enable the thread to be wound directly from the hank on to a cone. The traversing cam 9 is mounted on a loose sleeve 10 on a driving shaft 1, and is driven by means of gears 5, 6, 8, and pulley gear 2, 3 from the driving shaft. The conical spindle 27 is driven through a universal coupling 34 by gears 31, 32. Integral with the cam sleeve 10 is a face cam 12 adapted to reciprocate a rod 15 which in turn reciprocates a thread guide 25 through a lever 18, the fulcrum 19 of which is adjustable. The thread guide 25 is adapted to reciprocate along a median line at right angles to the line joining two fixed thread guides 26, and the cams 9, 12 are so arranged on the sleeve that during the winding on the smaller diameter of the cone the thread is taken up by the movable guide 25, so that the speed of the thread is uniform and equal to the peripheral speed of the mean diameter of the cone.