baber/WOPTO huggingface dataset:
Patent GB-616551-A (GB)
Title: Improvements in or relating to electrical measuring and controlling systems
IPC: G05B1/04
Filed: 1946-05-14
Abstract: 616,551. Electrical measuring and controlling systems. ELECTROFLO METERS CO., Ltd., and TABOR, H. May 14, 1946, No. 14514. [Class 40 (i)] An electrical recording, measuring, indicating, transmitting or controlling system coinprises a coupling coil X secured to the pointer B of a lightweight, sensitive measuring instrument F, Fig. 1, which produces variable coupling between the anode and grid coils L1, L2 of a thermionic valve circuit, Fig. 2. The resultant oscillations in the valve circuit and the consequent changes in the anode current operates relay ER. The embodiment shown in Fig. 3 is a continuous balance system for the measurement of a thermocouple E.M.F. Coil X, carried by galvanometer G, produces changes in the coupling between coils L1 and L2 tuned by condensers CV1 and CV2, which affects the bias of thyratrons T1 and T2. The resultant current through T1 or T2 passes through elements CL1 or CL2 which may be the field windings of a reversible electric motor, or other means, whereby current passing through one or the other of the thyratrons may move mechanism in one direction or the other. In the example, contact C is moved along slide wire SW fed by D.C., the potential tapped off thereby being balanced against thermocouple E.M.F., the point of balance being indicated by galvanometer G which at the point of balance remains in its mechanical position. When either thyratron conducts, current passes through RS or R9 and through R10, thereby injecting a current into the galvanometer tending to restore the pointer to its balanced position, thus preventing hunting. A further embodiment is described in which the anode current passes through one or more robust moving coil meters which may be remotely positioned. Specification 563,659 is referred to.
Patent GB-1126881-A (GB)
Title: Trunnion-mounted rotatable ball valves
IPC: F16K5/22
Filed: 1966-04-01
Abstract: 1,126,881. Valves. H. J. SHAFER. 1 April, 1966 [25 May, 1965], No. 14518/66. Heading F2V. A rotary spherical valve has a central tube 10 supporting trunnions 12, 14, the former carrying a flange 16 for an hydraulic motor which rotates the valve stem 18 of the spherical closure 20. Flow tubes 22 embody radially curved portions 24, which are welded to the tube 10. The stem 18 is journalled in a plastics bearing 48 and is provided with a thrust flange 52 whilst pins 60 connect the closure 20 with the stem. The trunnions 12, 14 fit in annular recesses 64 in the closure and are held in place by bevelled bearing rings 70, 72. Axially-adjustable seatrings 80 with an alloy surface 82 abut resilient seals 84 in closure grooves which are locked in place by retainer plates 96. The seat rings 80 are backed by rings 104, 106 and sealed by 0-rings 108. The rings 80 have differential surfaces against which the fluid pressure acts, when the valve is closed the resultant force urging the rings 80 against the closure on the downstream side. If the seals 84 become ineffective the fluid pressure acts to maintain a seal between the rings 80 and the metal surface of the closure 20. The sealing means can be removed and replaced through the flow tubes. The seat rings 80 are provided with a passage way for a lubricant seal which is used should the ordinary seals become ineffective; a corresponding groove may be provided in the closure surface.
Patent GB-901015-A (GB)
Title: Improvements relating to the manufacture of thin sheet metal lids for containers
Inventor: MCLATCHIE CAMERON
IPC: B65D43/02
Filed: 1959-04-29
Abstract: 901,015. Container closures. WILKIE & PAUL Ltd. Jan. 12, 1960 [April 29, 1959], No. 14579/59. Class 125(3). A sheet metal lid for a container has four or more sides and a peripheral flange 11 formed with an externally projecting head 12 which  may be above the flange edge or co-terminous with the edge, Fig. 2 (not shown). The head 12 may be discontinuous, and a second head may be formed above it, internally of the flange, in order to make the flange more rigid.
Patent GB-1079274-A (GB)
Title: Coal-winning arrangement
IPC: E21C27/18
Filed: 1965-04-07
Abstract: 1,079,274. Mineral-mining equipment. GEWERKSCHAFT EISENHUTTE WESTFALIA. April 7, 1965 [April 8, 1964], No. 14722/65. Heading E1F. A mineral-mining machine comprises a lower cutter 40 working by a stripping action and guided on a conveyor channel, and an upper, cutter-wheel 12 which is movable in a substantially vertical axis on a horizontal spindle on an arm 42 by a hydraulic piston and cylinder 18, the cutter-wheel being mounted on a carrier 15 of gantry or cantilever construction for extension over the conveyor 2. The carrier may be mounted on the conveyor on the goaf side and be movable by its own traction means independently of the cutter 40 along the coal face. The arm 42 may be pivotable to a position where the cutter wheel 12 engages coal at the base of the conveyor on the coal face side, to enable it to clear packed coal which cannot be cleared by the stripping cutter 40 and water may be axially supplied to the cutters of the wheel 12 through a rotatable couplto the end of wheel shaft remote from the wheel. An additional rotary cutting tool 41 may be mounted on an extension of the drive shaft of the wheel 12.
Patent GB-235222-A (GB)
Title: Improvements in and relating to diaphragms for acoustical instruments
IPC: H04R7/18
Filed: 1925-06-06
Abstract: 235,222. Lumiere, L. June 7, 1924, [Convention date]. Diaphragms.-A diaphragm for acoustic instruments, more particularly of the kind described in Specification 11015/09, is mounted in such a manner as to be capable of expansion or contraction in its own plane relative to the parts with which it is assembled. The edge of the diaphragm is left free to move by gripping the diaphragm between rings h, h<1>, Fig. 2, so as to leave a space above the edge. The rings h, h<1> are held in a metal ring i, the diameter of the opening in ring i being greater than the diameter of the diaphragm. In a modification of this arrangement, a single ring h is cut radially into tongues k<1>, k<11>, Fig. 3, which are bent alternately to the two sides of the diaphragm. A free space b, Fig. 4, may also be left at the centre of the diaphragm a, which is gripped by washers d, d<1> on the actuating rod c. In another form, Fig. 7, saw cuts are made in the edges of the diaphragm before it is folded into circular form and discs g of less diameter than the saw cuts fit into them with frictional engagement.
Patent GB-672111-A (GB)
Title: Electric stop motion for double feed mechanism on knitting machines
IPC: D04B35/10
Filed: 1950-06-13
Abstract: 672,111. Knitting-machines. SCOTT & WILLIAMS, Inc. June 13, 1950 [July 14, 1949], No. 14793/50. Class 74 (ii). A knitting-machine equipped for double feed is automatically stopped if synchronism between the main control drum and a wheel, racked under control of the drum to effect the introduction or withdrawal of yarn at a second feed point is lost during racking of the wheel. Two switches 30, 32, in series are placed in parallel with other stop-motion operating switches, such as top tension dropper switch 42, dropper switches 43 and needle switches 44. The switch 30 is operated by a disc 29 bearing one or more notches 33 and mounted on a shaft 5 which bears the double-feed operating cams and is racked round as necessary during knitting. The switch 32 is operated by a cam or cams 31 driven in synchronism with the knitting action of the machine; for example, mounted on the main control drum 1. If the machine is in synchronism then, at any point at which the double feed attachment is to be introduced or withdrawn, a notch 33 will be so positioned as to allow the spring contact of switch 30 to open an instant before a cam 31 closes the switch 32. Lack of synchronism will cause switch 30 to be still closed when switch 32 is closed and an electromagnetic operator 41 will be energized to operate a mechanical stop-motion. The shaft 5 is racked round at intervals by two diametrically opposed face cams 22 acting through a slidable push-rod 21, lever 27, pawl 9 and coacting pins 8 of a lantern wheel 7. To initiate racking, one of a number of cams 12 forces a push-rod 13 to the left, to rock a shaft 15 bearing an arm 19, in the end of which slides the push-rod 21, and to compress a spring 17, so that the rod 21 is forced into the path of the cams 22 when one of gaps provided between them comes opposite it. Racking now begins and a foot 28 on one end of a prop lever 11 rides out of a notch 10 on the periphery of the wheel 7, so that the other end of the prop lever swings into the path of an arm 25 also borne on the shaft 15, to present withdrawal of rod 21 from the path of cams 22 until foot 28 drops into another notch 10.
Patent GB-982873-A (GB)
Title: Lined pipe element and diaphragm valve body
IPC: F16K27/02
Filed: 1962-04-17
Abstract: 982,873. Valves; lined conduits; junction pieces. GRINNELL CORPORATION. April 17, 1962 [April 21, 1961; June 8, 1961], No. 14799/62. Headings F2G, F2P and F2V. A method of forming a lined pressure conduit, such as a diaphragm valve housing 12 or a pipe elbow 40, comprises locating a liner 26 in the conduit and introducing incompressible material into gaps 28, 30 between the liner exterior surface and the housing interior surface whereby the liner will be supported by the material in the area of the gaps. The liner may be moulded in situ or be preformed to smaller dimensions than the interior of the housing to prevent crushing when the latter is assembled from half sections connected by transverse bolts. The liner may be of poly-. vinylchloride, polytetrafluoroethylene, which may be reinforced with 2% by weight of glass fibres, or of materials known by the Registered Trade Marks " Penton " and " Saran," while the material used to fill the gaps may be six parts by volume of a preparation known by the Trade name Smooth-On, mixed with one part of water and injected through openings 36, 37 at room temperature under a pressure of about 40 p.s.i.
Patent GB-755683-A (GB)
Title: Xerographic plate
IPC: G03G5/043
Filed: 1954-05-20
Abstract: 755,683. Photo-electric devices. HALOID CO. May 20, 1954 [May 29, 1953], No. 14809/54. Class 37. [Also in Group XX] A xerographic photo-electric sensitive element comprises a conductive backing member having a layer of vitreous selenium, sulphur or anthracene upon which is a thin layer of vitreous selenium and tellurium. The backing member may be a plate, cylinder, sheet or web and may consist of aluminium, brass, magnesium, iron, steel, chromium, conductive glass, resins or plastics, or metallized paper or plastics. The selenium and selenium-tellurium layers may be applied by evaporation, melting, pressing or painting. The selenium-tellurium layer may comprise between 2 and 45 per cent by weight of tellurium, and is preferably not more than half the thickness of the selenium layer. In operation, the element is electrically charged, so that a charge pattern is produced when a light image is focused on the selenium-tellurium layer. The latter improves the sensitivity and frequency response of the element.
Patent GB-979291-A (GB)
Title: Improvements in endless conveyors
IPC: B65G69/00
Filed: 1960-04-28
Abstract: 979,291. Endless conveyers. P. D. F, FERREIRA. April 28, 1961 [April 28, 1960], No. 14865/60. Heading B8A. The auxiliary conveyer described in Specification 899,731 which is movable about a vertical A, A, relative to a main conveyer, may also be swung in a vertical plane about an axis B. The swinging movement is effected by rotation of a pulley-wheel 47b. The auxiliary conveyer is driven from the main conveyer by a chain drive X.
Patent GB-1459876-A (GB)
Title: Vapour condenser
IPC: F28B9/10
Filed: 1974-04-04
Abstract: 1459876 Surface condensers STAL-LAVAL APPARAT AB 4 April 1974 [6 April 1973] 14920/74 Heading F4S In a vapour (e.g. steam) condenser comprising a nest of coolant tubes 18 (either straight tubes or U-tubes) which are supported at intervals along their length by stay plates 16, and wherein the vapour being condensed flows generally inwardly from the periphery of the tube nest, the stay plates have apertures 19 therein to permit vapour flow for a more even distribution thereof, in a direction generally longitudinally of the tubes to means 21 within the tube nest for collecting and removing non-condensible gases such as air. The apertures 19, which may be disposed in concentric circles, are shown as arcuate but may be rectangular with rounded corners. The non-condensible gas may be evacuated by a vacuum pump or by maintaining an overpressure in the condenser.  The means for evacuating the non-condensible gases may comprise a relatively small tube nest portion 21 within which is a chamber 22 with inlets 28 for non-condensible gases and residual steam. Any condensate in the chamber 22 e.g. from the residual steam, discharges therefrom via a tube 32 into water locks 30. An innermost part of the tube nest portion 21 includes, as shown in Fig. 3, walls 24, 25 defining channels said to provide a more controlled distribution of non-condensible gases and residual steam into the chamber 22 via the apertures 28 in the chamber walls. The non-condensible gases are conveyed via a duet 23 to the periphery of the condenser. The tube nest may be circular (as shown), oval, or rectangular in cross-section and the aircooler portion may be located eccentrically therein.
Patent GB-1119853-A (GB)
Title: Adhesive compositions containing epoxy resins
Inventor: HAYES BARRY JAMES
IPC: C08G59/58
Filed: 1965-04-08
Abstract: Hardenable epoxy resin compositions consist essentially of (i) a polyglycidyl ether of a novolac resin, (ii) as hardening agent, a tertiary amine R1R2NCH2R3 (where R1 and R2 are C1- 5 alkyl groups and R3 is an alkyl, aryl, aralkyl or cycloalkyl group which may be substituted by hydroxyl or primary, secondary or tertiary amino groups), (iii) a dialkyl o-phthalate in which each alkyl group contains 2-8 carbon atoms, and optionally (iv) a filler. The compositions are useful as adhesives.
Patent GB-581727-A (GB)
Title: Improvement of means for tuning electrically resonant cavities
IPC: H01P7/06
Filed: 1941-11-24
Abstract: 581,727. Cavity resonators for electron discharge devices. STANDARD TELEPHONES & CABLES Ltd. (International Standard Electric Corporation). Nov. 24, 1941, No. 15103. [Classes 39 (i) and 40 (iii)] A resonant cavity is tuned by means of a bent wire extending inside it and adjustabte in position so as to modify the electric field distribution. The member may be a loop 13, Fig. 3. In the application of the invention to a Klystron, oscillator, the upper cavity is tuned by a member 27, Fig. 5, which can be projected more or less into the cavity and can be rotated. The lower cavity a a straight member 29 which may be adjustable. Both cavities may be tuned by bent wires. Specifications 513,970 and 530,785 are referred to.
Patent GB-107707-A (GB)
Title: Improvements in Means for Opening and Closing Vehicle Doors.
Inventor: EDWARDS CHARLES
IPC: E05B65/12
Filed: 1916-10-24
Abstract: 107,707. Edwards, C., and Bird, H. Oct. 24, 1916. Operating vehicle doors by driver through crank, lever, and link mechanism. -Relates to mechanism for opening and closing vehicle doors of the kind in which an operating-member arranged near the driver's seat is moved to the right or left to release the right or left door and is then moved rearwards to open the selected door. The operating-member consists of a pillar a mounted to slide laterally and then rearwardly in guides h, h<1>, on a support b<1> in the middle of the seat. The top plate of the support is arranged between a flange a' on the pillar and a flange on the casing b of the pillar. The flange a' is formed at each side with a slot a<11> for engagement with levers k, l connected by links m, m<1> to arms n, n' attached to the doors o, o<1>. The door catches g are connected by wires f to levers e engaging slides d each provided with a projection d', consisting of the free end of a blade spring, which normally engages the flange a<1>. When the pillar is returned to the mid-position the flange depresses the spring of the slide that has been operated. The pillar is normally locked in the mid-position by a catch s which is held in engagement by a spring u and can be released by means of a wristoperated lever c.
Patent GB-1069248-A (GB)
Title: A signal regenerator and shaping circuit
Inventor: FRAME ROBERT HAMPTON
IPC: H04L25/24
Filed: 1965-04-09
Abstract: 1,069,248. Transistor pulse circuits; telegraphy. HALLIBURTON CO. April 9, 1965, No. 15279/65. Headings H3T and H4P. A telegraph pulse regenerator comprises a transistor cross-coupled type bi-stable circuit 94, 118 to which the pulses and a variable threshold bias 90 is applied, an output transistor 138 fed from a higher voltage collector supply source, and feedback capacitors 110, 114 and 134 for each of the transistors to decrease the noise generated and increase the rise and fall times. In the circuit shown, low level received pulses pass through an emitter follower transistor 30 to switch the bi-stable circuit whereas high level signals may be passed directly through a noise reducing filter 44 to 70. The path 140, 142 between emitter and base of the output transistor also helps to slow the turn-on time. The circuit supplies the printer selector magnet, Fig. 4, not shown, in the circuit of the transmitting pulse regenerator and differs in that filter 44-70 is transferred to the output circuit.
Patent GB-807064-A (GB)
Title: Improvements in or relating to exchangeable cutter units and mountings therefore, for use in trueing or shaping mechanisms for the grinding wheels of form grinding machines
IPC: B24B53/08
Filed: 1956-08-22
Abstract: 807,064. Trueing grinding wheels. GEAR GRINDING MACHINE CO. Aug. 22, 1956 [Oct. 3, 1955], No. 15367/55. Divided out of 807,063. Class 60. An exchangeable cutter unit for a pantograph-actuated mechanism for trueing grinding wheels comprises a block L, Fig. 4, which has a channel L<SP>1</SP> for the reception of a cutter holder M and is arranged to be mounted detachably on a head P carried on one of the pivot pins Q of the pantograph, the block being exactly positioned on the head by the projecting end Q<SP>1</SP> of the pin Q engaging two angularlydisposed faces L<SP>2</SP>, L<SP>3</SP>, Fig. 5, on the block and a downward projection R<SP>2</SP> on the block engaging a stop on the head. The block L is clamped onto the pin Q by a cap L<SP>4</SP> and set-screw L<SP>5</SP> and is secured to the head P by screws S passing through a cap O; screws O<SP>2</SP> in the cap O and a further screw O<SP>4</SP> serve to clamp the cutter holder M in adjusted position. The projection R2 is carried by a plate screwed to the block L and engages a stop in the form of a recess P<SP>1</SP> in the head, the projection being positioned in its correct angular about the pin Q by adjusting a set-screw.
Patent GB-203056-A (GB)
Title: A locking device for securing detachable chair legs and the like
IPC: A47D1/02
Filed: 1922-06-01
Abstract: 203,056. Rose, H. W., Neighbour, R. C., and Morris, P. V. June 1, 1922. Collapsable tables convertible into receptacles or seats; invalids' tables; frames.-In a baby chair of the kind which can be folded to form a receptacle resembling an attachÚ case, the legs 11 are detachably secured to the bottom, preferably in a splayed position, through the medium of slotted members 22, 24 and studs or pins 20, 23. The legs are preferably connected by jointing sleeves 14 and hooked stays 16. The table T may be swung to one side, or may be both slidable and pivoted, or may be entirely removable. When the hinged front 7 is closed the chair may be used as a work-box, and when the back-rest 3 is also closed the device serves as a table.
Patent GB-152717-A (GB)
Title: Improvements in the construction of boats, ships and like navigable vessels
IPC: B63B1/38
Filed: 1919-06-19
Abstract: 152,717. Valda, A. H. June 19, 1919. Hydroplane vessels.-Ships and boats are fitted above a structure comprising a series of planing surfaces so formed and arranged as to be open above and to leave between the rear edge of one planing surface and the forward edge of the one next behind, an open space whereby water can pass both above and below said surfaces. The hull a of the vessel, shaped according to requirements, is mounted on a lower frame a<1> extending for its entire length, and of a slightly greater width. The base of the frame is constituted by a number of planing surfaces b arranged with an open space b<1> between each surface. The forward end may be formed as an ordinary bow, and provided with a screw propeller e protected by a dependent guard c<2>. Both forward and aft screws e, e<1> are driven from the same internal-combustion engine f, the shafts having clutches controlled bv hand levers. According to the speed attained, the vessel will be navigated with its planes b either just beneath the waves or skimming the surface. In a modification, the planes are placed further apart and are made hollow for the admission of water to adjust the degree of immersion. Valves may also be fitted to control the passage of water between the planing surfaces. The forward propeller may rotate in a mixture of air and water, air being supplied through a vertical conduit. The deck may also be formed of hollow cylinders supported on hollow columns.
Patent GB-1518648-A (GB)
Title: Shearing tool for synthetic resin tubes
IPC: B26B13/16
Filed: 1977-04-14
Abstract: 1518648 Hard shears MATSUZAKA IRON WORKS Inc 14 April 1977 [11 Dec 1976] 15568/77 Heading B4B A shearing tool for shearing, e.g.: plastics pipes, comprises a blade 8 pivotally connected to a first handle 1 and adapted to enter an opening 4<SP>1</SP> in a jaw member 4 fixed to a second handle 5, a rocking bar 16 being pivotally connected at one end to the second handle and at its other end to the blade so that when the handles are moved together, the blade is urged towards the jaw member, the handles being normally urged apart by a spring 7. The-bar 16 is provided with a pin 17 adapted to move in a slot 14 formed in the blade, the dot being provided with notches 13. In operation, the pressure on the handles is maintained substantially constant by means of the pin 17 being engaged with different notches. In a modification, Fig. 8A (not shown), notches are formed on a rocking bar (13) the notches being adapted to engage with a pawl 7 formed on the blade 8.
Patent GB-1209127-A (GB)
Title: An annular spacer ring for positioning between two wheel rims, each to reiceve a tyre and mounted on a single wheel disc
IPC: B60B11/06
Filed: 1969-03-25
Abstract: 1,209,127. Vehicle wheels. GOODYEAR TIRE & RUBBER CO. 25 March, 1969 [26 April, 1968], No. 15580/69. Heading B7C. A spacer for separating a pair of vehicle wheel rims each to receive and tyre and mounted on a single wheel disc comprises an annular member having a group of radial ribs 5 extending from the margin 3 and terminating at a point 7 beyond the mid-circumferential plane 6 and a second group of ribs 8 extending from the margin 4 to a point 9 beyond the midcircumferential plane 6 thus forming a zig-zag depression 10. Each margin has an integral circumferential radially outwardly extending flange thereon.