baber/WOPTO huggingface dataset:
Patent GB-517518-A (GB)
Title: Improvements in or relating to electrically operated railway or tramway points shifting mechanism
IPC: B61L11/00
Filed: 1938-06-30
Abstract: 517,518. Operating railway &c. points. BURNS, J. S. June 30, 1938, No. 19437. [Class 104 (i)] Railway &c. points are moved to normal and reverse positions by successive energizations of a single solenoid from an overhead conductor 6. Near the points the low collector 5 leaves the wire 6 and engages first a long conductor 7 and then a short one 8. When it engages 7, current passes from 6 to 7 through a relay 9, which lifts a switch 11 from contact 12 to contact 13. The collector then engages 8, when current passes from 6 through 9, 7, 5, 8 to solenoid 14, the armature 16 of which then moves the points. The armature is pivoted to a V-shaped member 32 provided with hooked ends 42, 43 adapted to engage, during successive energizations of 14 the opposite ends of a lever 38 fixed to a spindle 35 carrying an arm 36 connected to the points rod 37. During its rocking movement, a lug 40 on the lever rocks 32 to a position to engage the other end of 38 so that the points are reversed during the next energization of 14. During its movement the lever 38 through a rod 44 moves a toggle switch 17, 18 to break the circuit of the coil 14, and springs 30 turn extension 16 to normal position.
Patent GB-1111125-A (GB)
Title: Improvements in or relating to the manufacture of polyurethanes
Inventor: HAGGIS GEOFFREY ARTHUR
IPC: C08G18/50
Filed: 1964-05-11
Abstract: A polyether which contains at least two hydroxyl groups and at least one secondary amino group in the molecule and which is a hydrolysis product of an oxyalkylated oxazolidine, is reacted with an organic polyisocyanate to form a polyurethane.  The oxyalkylated oxazolidine may be prepared by reacting an oxazolidine with an alkylene oxide and may have a M.W. of 1500-5000, or an N-hydroxyalkyl oxazolidine may be prepared by condensing a carbonyl compound with diethanolamine. Catalysts may be included in the reaction mixture and foams may be prepared by incorporating a blowing agent.  In a typical Example (1) a polyether prepared by reacting propylene oxide with 2-methyl-2-ethyl oxazolidine, was mixed with stannous octoate, triethlene diamine, water and a siloxane-oxyalkylene copolymer. Tolylene diisocyanate was then added, the mixture poured into a mould and allowed to foam and set.
Patent GB-1470518-A (GB)
Title: Rail anchorage provided with a resilient clamping element
IPC: E01B9/66
Filed: 1973-04-24
Abstract: 1470518 Securing railway rails MOLYNEUX RAIL CLIPS Ltd 16 April 1974 [24 April 1973] 19498/73 Heading E1G In a rail fastening wherein a spring metal clip, such as 11, Fig. 1, is supported by a rigid member 1 mounted alongside the rail, the rigid member 1 has an integral ear or ears 17 projecting over the rail flange 4 and directly engageable with the rail to limit upward deflection of the clip if the rail is warped or twisted. The bent plate spring 7-9-11 of Fig. 1 is located between ears 17 of an inverted-dish member 1 providing also a rail abutment 3 which is laterally adjustable by rotation of an eccentric bush 13 on a fixed bolt 6. In a modification, Fig. 4, the spring clip comprises a loop of resilient steel bar 36-37-38 having convergent or parallel legs 39 housed beneath lips 35 of a rigid railside member 23 laterally adjustable by rotation of an eccentric bush 26 on an upstanding stud, the rigid member 23 having a single ear 40 projecting over the rail flange 21 to limit upward deflection of the clip.
Patent GB-1174168-A (GB)
Title: Oil recovery and composition therefor
Inventor: SULLIVAN FRANCIS FREDERICK
IPC: C09K8/588
Filed: 1967-04-27
Abstract: 1,174,168. Secondary recovery. GAF CORP. 27 April, 1967 [28 April, 1966], No. 19538/67. Heading E1F. The flooding water used in secondary recovery of petroleum includes a copolymer of methyl vinyl ether and maleic anhydride with a M.W. of 500,000 upwards and sufficient of an inorganic salt including some multivalent cations to give a resistivity of 0.3 to 1 ohm <SP>I</SP> in concentration of 0.0025 to .25 percent of the composition. The treatment also prevents the deterioration of biocidal action of quaternary ammonium compounds usually used in water-flooding.
Patent GB-386887-A (GB)
Title: Improvements in or relating to telemeter attachments for photographic cameras
IPC: G03B13/20
Filed: 1932-07-11
Abstract: 386,887. Telemeter and view-finder for photographic cameras. LEITZ GES., E., Optical Works, Wetzlar, Germany. July 11, 1932, No. 19565. Convention date, Sept. 10, 1931. [Classes 97 (i) and 98 (i).] A camera attachment comprises a shortbase telemeter having a reflecting element at each end of the base, combined with (1) a view-finding telescope disposed between the reflecting elements, and (2) a reflecting prism so mounted on the attachment that it can be interposed at will between the eye and the observing window of the telemeter in order to permit either direct or indirect observation of the window. As shown, a telemeter casing A mounted on a camera B encloses the known arrangement of fixed semi-transparent reflector H and adjustable reflecting prism J receiving rays through windows C, E, and transmitting them to an observing window F. Lenses K, L fitted in windows D, G constitute a viewfinding telescope disposed between the reflectors H, J. A reflecting prism N mounted in a bracket M pivoted to the casing A can be swung from the inoperative position shown dotted to the full-line position so that the window F may be observed by looking into the prism N in a direction at right-angles to the direct axis XX. The prism N may be rotatable in its bracket round the axis XX so that the window F may be observed from any direction at right-angles to that axis. The prism J may be mechanically coupled to the focusing mount of the camera objective so that the objective is automatically focused when the telemeter is set.
Patent GB-451538-A (GB)
Title: Floating cover for oil storage tanks
IPC: B65D88/34
Filed: 1935-07-10
Abstract: 451,538. Tanks. GRIFFIN, A. M., 2147, West 79th Street, Los Angeles, U.S.A. July 10, 1935, No. 19730. [Class 69 (i)] A floating cover for a tank is formed mainly of rectangular pontoons secured together, with the top 4, Fig. 7, of each pontoon projecting on one or more sides to overlap depressed portions of the tops of adjacent pontoons, and be secured thereto by bolts 8. Each pontoon has internal reinforcing members 14, Fig. 3, and a neck 17 with a cover 19. The depth of the pontoons preferably decreases gradually from the periphery of the cover to the centre, and a drainage pipe is provided.
Patent GB-385645-A (GB)
Title: Improvements relating to vacuum or gas-filled electric discharge tubes
IPC: H01J61/067
Filed: 1931-07-09
Abstract: 385,645. Discharge apparatus. SCHALLREUTER, W. L. W., 73, Cambridge Terrace, Hyde Park, London. July 9, 1931, No. 19768. [Class 39 (i).] A gas or vapourfilled tube for use as a rectifier or as a lamp on an alternating current supply, has an electrode in two parts, of which one part, forming the anode, has a considerable mass and is run at a low temperature, and the other part consists of an electron-emitting element of small mass placed within and along the axis of the space formed by a concave surface of the anode part over which the discharge takes place. As shown, the anode part A is a cylinder of carbon and the electronemitting element B consists of a short rod of magnesium oxide or a Nernst filament; alternatively, the anode part may consist of silicon, oxide of iron, lead, selenium, or copper, or a compound of a conducting metal with sulphur, nitrogen or selenium. The lead C is enclosed in quartz, glass, or porcelain D. At starting the element B is not sufficiently hot to emit electrons, and the remainder of the electrode acts alternately as anode and cathode. The element B is heated by the voltage and begins to emit electrons. The negative glow at starting is shown at F and during operation is shown at H. In a modification, the anode part, with the exception of the concave portion, is covered with insulation. In another arrangement, the electron-emitting element is mounted inside a hollow cylinder coated on the outside with insulation or spaced near the envelope so that no glow discharge can take place from the outer surface.
Patent GB-1101036-A (GB)
Title: Electric arc welding
IPC: B23K10/02
Filed: 1965-05-11
Abstract: 1,101,036. Welding by fusion. SOC. ANON. DES ATELIERS DE SECHERON. 11 May, 1965 [11 May, 1964], No. 19867/85. Heading B3R. [Also in Division H2] In constricted arc welding metal sheets of thickness less than 0À5 mm., the current is such that the arc beyond the constriction would normally be unstable, and the arc is stabilized by confining substantially the whole of the arc beyond the constriction by a shielding gas atmosphere substantially not ionizable by the arc effluent issuing from the constriction. The current range is from a few hundred milliamps to 5 amps. The gas forming the arc effluent is inert, e.g. argon, and the gas shield is a dissociable gas, e.g. hydrogen, nitrogen or carbon dioxide, or a mixture thereof with argon or helium. The welding torch has a detachable constricting nozzle 2, an outer gas nozzle 22 and a non-consumable electrode 1. During operation a pilot arc initiated between the nozzle 2 and the electrode 1 by a brief h.f. discharge is maintained continuously so that the main arc to the work strikes as soon as the torch is near the work.
Patent GB-836502-A (GB)
Title: Improved variable-speed power transmission mechanism
IPC: F16H61/56
Filed: 1958-06-23
Abstract: 836,502. Variable-speed gear. GENERAL MOTORS CORPORATION. June 23, 1958 [July 11, 1957], No. 19984/58. Class 80 (2). [Also in Group XXIX] A variable-speed gear for a vehicle comprises a three-element hydrodynamic transmitter having an impeller P driven by an input shaft 1 through a clutch 5, and two turbines T1, T2 combined with a planet gear, the planet carrier 39 of which is connected to an output shaft 2 through an external shell 41, its ring gear 33 is connected to the first turbine T1, whilst its sun 31 is connected to the second turbine T2 through a one-way clutch 45 which prevents relative reverse rotation of the turbine T2, which latter is also connected to the output planet carrier 39 through a one-way clutch 47 which prevents relative forward rotation of the turbine. A negative-torque one-way clutch 59 transmits engine brake torque. Gear operation.-In forward drive the sun 31 is held against reverse rotation by a brake 55 acting through a one-way clutch 53, and the first of four drive phases is as follows. Initially forward torque, impressed on the first turbine T1, drives the ring 33 forwards, whilst negative torque on the second turbine T2 is taken on the brake 55 through both one-way clutches 45, 53, thus holding the turbine T2 which functions as a torque-multiplying reactor. With the sun 31 also reacting on the brake 55, the ring 33 drives the output carrier 39 at reduced speed, providing further torque multiplication. Increasing speed introduces a second phase wherein the negative torque on the turbine T2 diminishes and finally vanishes, eliminating the hydrodynamic torque multiplication, and the turbine T2 begins to rotate forwards without torque contribution until, in a third phase, its speed divided by the planetary gear-ratio equals that of the turbine T1, whereon the turbine T2 begins to drive the output carrier 39 directly through the one-way clutch 47. The torque on the first turbine T1 now diminishes whilst that on the second, T2, increases, until in a fourth phase, the former vanishes, and with it the reaction on the sun 31, whereafter all the parts rotate together at substantially input speed. For reverse, the brake 55 is released and a brake 57 applied to a ring gear 35, resulting in holding also the equal ring 33, and with it the turbine T1, which now acts as a reactor, causing reverse rotation of the turbine T2 which drives the sun 31 through the one-way clutch 45, and thereby, at reduced ratio, the output carrier 39. Hydrodynamic transmitter.-The second turbine has freely pivoted inlet vanes 21 which are tilted between two extreme positions by the fluid to reduce shock at entry; and exit vanes 25 which are pivoted by a control 24, as below. The blades 13 of the first turbine T1 also have an incidence control 16. The vane controls 16, 24 may be controlled by torque demand as sensed by accelerator pedal position, or engine manifold depression, both controls being either stepped or stepless, although it is preferred that only 24 is stepless.
Patent GB-898788-A (GB)
Title: Improvements in or relating to engraving means
IPC: B44B3/00
Filed: 1957-06-25
Abstract: 898,788. Copy-milling. BLACK & DECKER Ltd., BLIGHT, N. J., and HARDEY, J. H. June 24, 1958 [June 25, 1957], No. 20021/57. Class 83 (3). [Also in Group XVI] Engraving apparatus comprises an elongated carriage 1 for traversing over a surface to be engraved, a mounting 2 for a motor at one end, a tool 17 at the other, and a flexible coupling 13 connecting the tool and the motor. The adapter 2 with clamps 6 is secured in a split boss 3 at one end of the apparatus to enable a portable electric drill 5 to be mounted with its spindle aligned with a pulley mounting 9. The driving connection comprises a pin 11 in a slot 12. The D-type engraving cutter passes through a guide 19 which limits the depth of cut, the projection of the spindle being determined by a nut 21. The guide 19 is itself guided, in use, in a stencil. To align the stencil with the work, V notches or projections on the stencil engage V projections or notches on the work or on an aligning member thereon. The tool rotates at 10,000 R.P.M.
Patent GB-1137883-A (GB)
Title: Improvements in and relating to the cooling of dynamo-electric machines
Inventor: WILLONER GEORGE
IPC: H02K5/20
Filed: 1965-05-12
Abstract: 1,137,883. Cooling dynamo-electric machines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 26 April, 1966 [12 May, 1965], No. 20042/65. Heading H2A. Cooling air passing along the outside casing 7 of a dynamo-electric machine is passed through a Venturi formed by plates 9, 12, 12a and produces suction between end plate 6 and plate 11 to provide an air flow past housing 3, 4 of bearing 2. The main air flow f is provided by known means and the machine may be totally enclosed. Fins 15 adjacent the bearing housing may be provided to enhance cooling. Plates 12, 12a can diverge to give a diffuser action and the dimensional relationships between the parts is given.
Patent GB-1465253-A (GB)
Title: Dredge pump
IPC: F04D29/22
Filed: 1975-05-13
Abstract: 1465253 Centrifugal pumps KONIJN MACHINEBOUW BV and BAGGER-EN CONSTRUCTIEBEDRIJF JOHAN KLIP BV 13 May 1975 [22 May 1974] 20069/75 Heading F1C [ Also in Division B2] A dredge pump comprises an impeller having two blades 17, 18 between front and back plates 13, 15, the blade 17 having a radially inner part of at least substantially the form of a circular arc, in particular, a semicircle as shown, which bounds a central inlet and subsequently increasing in radius to provide a passage 20 which increases gradually in width towards the outlet 21 to avoid clogging by dredged material, the other blade 18 having its inner end 22 adjacent the inner end 19 of the blade 17 and its outer end 23 diametrically opposite the outer end 24 of the blade 17, the blades being concave as viewed from the axis of rotation, and the front and back plates having cutting edges 35 at their outer surfaces. Additionally, each blade has a cutting rib 25 and the ends 19, 22, 23, 24 are sharp-edged. The front plate 13 differs from the back plate 15 in that it is cut away to form an inlet opening 14 following the course of the blade 17 and to form a recess 31 communicating with a hollow space between the blades 17, 18. During impeller rotation, anti-clockwise as viewed in Fig. 3, a partial vacuum forming in the hollow space imparts a whirling motion to dredged material which has left the passage 20, to assist its discharge from the pump casing. An inspection cover 8 is fastened by a clamp 9,11.
Patent GB-238873-A (GB)
Title: Improvements relating to the lays of power looms
IPC: D03D43/00
Filed: 1925-08-11
Abstract: 238,873. Maschinenfabrik R³ti vorm. C. Honegger. Aug. 23, 1924, [Convention date]. Lays; reeds; shuttleboxes; shuttle-races. - In order that a loom may be converted readily from a loom working with a single shuttle to a single or double change-box or pickat-will loom, the lay is made with detachable end parts 5, Fig. 1, which may be replaced by multiple shuttle-boxes, the shuttle race 7 being adjustably connected to a rail 4 connecting the lay swords 2. The shuttle-boxes are bolted to the lay swords, and the race is secured by bolts 11, Fig. 2, adjustable in slots 10 in angles 9 secured to the rail 4. The reed 15 is mounted in a frame 13, 14 carried by a spring- controlled lever 12, and is adjusted relatively to the shuttle-boxes by stop bolts 18 passing through the angle 9 and T-rail 4.
Patent GB-204448-A (GB)
Title: Improvements in and relating to coal mining machines
IPC: E21C29/24
Filed: 1922-07-22
Abstract: 204,448. Jensen, C. A., (Jeffrey Manufac turing Co.). July 22, 1922. Coal-cutting machines.-A truck for a long-wall coal-cutting machine, particularly a machine of the endless chain type, is provided with means whereby the machine is secured in such a position that the swinging cutter jib can be freely used for arcwall cutting, while the machine may be readily dismounted for use in longwall work; fittings may also be provided to adapt the machine for short-wall work. In the form shown, the truck has a slideway k to aid in loading or unloading the machine c, the slideway being slid into the truck framing when not required. The machine is held against stops m, n, by bolts &c. Jacks may be pivoted to the truck and engage the mine wall during arc-wall working and these or other jacks may be used to raise the front or rear of the truck. Such working is effected by swinging the cutter jib by means of a cable passing from the haulage drum to a pulley e<1> on the jib. The truck is propelled by a separate motor o which, when the machine is removed, overbalances the truck on to rear wheels x. A yoke 1 carrying a pulley 2 may be fixed at the forward end of the machine and means may be provided to fix the cutter jib longitudinally of the machine body or at a suitable angle, whereby the machine may be used fur short wall work; for this purpose an auxiliary drum may be provided at the side of the machine to receive a tail rope to control the position of the machine. Brakes and means for clamping the wheels to the track may be provided. In a modification, the truck is driven from the motor of the machine through a vertical crank shaft operating the haulage mechanism and connected by bevel gearing to a lateral sprocket geared Ly chain to the truck: the rear wheels x may then be omitted. Specification 207,676 is referred to. The Provisional Specification states also that the swinging cutter jib may be automatically oscillated through gearing provided with reversing- mechanism and the truck may be driven from the haulage or auxiliary drum through worm &c. gearing and chain gearing or a flexible shaft.
Patent GB-1537188-A (GB)
Title: Sub-marine telephone cable
IPC: H01B7/14
Filed: 1977-05-13
Abstract: 1537188 Submarine telephone cable CABLES DE LYON SA 13 May 1977 [25 May 1976] 20180/77 Heading H1A [Also in Division D1] The central conductor for a co-axial telephone cable comprises a twisted core of steel wires 2, 3, 5 and aluminium alloy wires 1, 4 encased in a longitudinally welded copper tube, the steel wires being so arranged in contact with each other that they interact as an arch or vault under radial compression produced during passage through a manufacturing die, to withstand the applied compression. The twisting machine has polythene ramps to guide the aluminium wire and the bobbins for the wires have eddy current disc brakes. The die is chromium plated to reduce compression forces on the core and give a uniform outer diameter to the core.
Patent GB-299114-A (GB)
Title: Improvements in appliances for the housing of rabbits and similar animals
IPC: A01K1/03
Filed: 1927-07-30
Abstract: 299,114. Nicholson, V. E. B. July 30, 1927. Shelters for animals such as rabbit hutches and the like are formed with a framework and removable divisions of asbestos cement to divide the enclosed space into a number of separate compartments, the fronts 17 and floors 12 being formed of open meshwork; sliding receptacles 11 are disposed beneath each floor to collect refuse. The edge-pieces of the floors are formed inclined so that the refuse may easily pass downwards. Troughs 14 for the compartments are secured to the removable partitions 7 and other apertures are provided for the reception of removable troughs 15. Inclined racks 22 for the reception of hay and the like are provided at the open fronts and the troughs 15 are formed with inclined shoots 15a having bent-up side webs to guide the food to the troughs. Other openings 24 are disposed at the tops of the shelters for delivering food which cannot pass through the meshwork.