baber/WOPTO huggingface dataset:
Patent GB-626139-A (GB)
Title: Multi-position snap-action electric switch
IPC: H01H13/12
Filed: 1946-10-18
Abstract: 626,139. Snap-action switches. SAIA AKT.-GES. FUR SCHALTAPPARATE. Oct. 18, 1946, No. 31083. Convention date, Oct. 18, 1945. [Class 38(v)] A triangular plate 1 carrying contacts a, (b), c is pivoted at its centre of gravity on a spring-urged, current-supply member 4 and tiltable by an intermediate lever 5 pivoted in turn to an operating lever 20, the arrangement being that the fixed contacts d, (e), f are engaged in pairs by the plate-contacts, but may, alternatively, be bridged. The Specification as open to inspection under Sect. 91 describes also an arrangement wherein three push-buttons act on the apices of the plate or on the mid points of the sides, Figs. 1-3, (Cancelled, not shown). This subject-matter does not appear in the Specification as accepted.
Patent GB-206371-A (GB)
Title: Improvements in or relating to shock absorbers
IPC: F16F7/06
Filed: 1922-11-14
Abstract: 206,371. Cross, H. Nov. 14, 1922. Vibration-dampers.-A shock-absorber of the type in which a belt is wound up on compression of the vehicle spring and frictionally engages a braking surface on the rebound thereof, comprises a spring adapted to wind the belt or strap on to a rotatable drum and provided with means for adjusting its tension, and a cup-shaped member extending within the outer end of the spring to prevent it from cocking when under tension. As shown, a base member 15 adapted to be secured to the sill of a vehicle chassis is formed with a web 16 to which is secured one end of an arm 18 provided with an opening 21 to receive the reduced end of a pivot pin 19. A finger 27 at the inner end of the arm 18 projects inwards to receive one end of the coil spring 26 the tension of which is adjusted by freeing the arms 18 from the web 16, connecting the other end of the spring to one or other of lugs 25 on a drum 23 rotatable about the pin 19, and replacing the arm on the web. A strap 14 secured to the drum 23 and passing around the web 16 is secured at its outer end to the vehicle spring, compression of which permits the spring 26 to rotate the drum and take up the slack in the, strap 14 whilst the rebound is checked by friction between the strap and the web. A cup-shaped member 28 secured between the arm 18 and the shoulder of the pin 19 prevents the coils of the spring 26 from cocking.
Patent GB-434312-A (GB)
Title: Improvements in clutches
IPC: F16F15/123
Filed: 1934-01-29
Abstract: 434,312. Yielding clutch - plates. BORG & BECK CO., and REED, H. V., 6558, South Menard Avenue, Chicago, U.S.A. Jan. 29, 1934, No. 31231. Divided out of 419,410. [Class 80 (ii)] A clutch-plate is cushioned by precompressed coil-springs 9, arranged in openings 12 in the hub 1 and 13 in the friction-disc 4, either set of openings being unequally spaced so that groups of springs, e.g. 9, 9a, oppose each other in maintaining initial equilibrium. As shown, there is a relative circumferential stagger between the pair of hub-openings 12 and their corresponding disc-openings 13, which stagger is in the opposite direction from that of the other pair 12<a>. The resulting deflection curve has two stages with a pause between them. The springs are retained at each side by circular wires 10 clamped at 11. The disc-member 4 has a cover-plate on the other side of the hub, secured to it by rivets 6, which pass through arcuate slots in the hub to limit the relative movement. Specification 419,410 is referred to.
Patent GB-505128-A (GB)
Title: Improvements relating to apparatus for use in the drying or other treatment of pottery-ware
IPC: F26B15/04
Filed: 1937-11-13
Abstract: 505,128. Furnace - charge supports. HALSALL, J. Y. M. Nov. 13, 1937, No. 31250. [Class 51 (ii)] [Also in Group XIII] Apparatus for drying or other treatment of pottery-ware comprises a rotatable frame a with each side flanked by a pair of uprights b and a series of superposed trays f arranged close together at each side of the frame, the trays being pivoted at one end to an upright b so that each can be swung out separately for loading or unloading. The frame has radial arms, rotates on a central shaft c and may be mounted on a carriage. The trays are spaced by collars g, and the free ends of the trays may be supported on the frame.
Patent GB-657338-A (GB)
Title: Improvements in or relating to the production of hard cellular materials
Inventor: UNSWORTH ALFRED KENNETH
IPC: C08J9/04
Filed: 1948-12-02
Abstract: Hard expanded polyvinyl resin products are made by forming gas bubbles in a gel either simultaneously with or subsequent to the formation of the gel, the latter being made by heating a paste containing the resin and a plasticizer therefor which is volatile at room or slightly elevated temperature, heating the gel to expand the absorbed gas and subsequently removing the solvent. The gas bubbles may be formed by blowing agents such as azo-isobutyric dinitrile, diazoaminobenzene, dinitropentamethylene tetramine, urea, biuret, sodium bicarbonate or ferrous oxalate or by impregnating the gel with gases under high pressure, e.g. nitrogen or carbon dioxide.  The resins may be polyvinyl chloride or copolymers of vinyl chloride and vinyl acetate or vinylidene chloride.  Specified plasticizing solvents are acetone, dioxane, methyl ethyl ketone, isopropyl acetate, n-propyl acetate, tetrahydrofurane and mesityl oxide.  The plaste may include stabilizers such as alumina, cadmium stearate, lead stearate and white lead.  The product may be moulded into boards. Specification 580,743 is referred to.
Patent GB-992812-A (GB)
Title: Continuous object processing apparatus
IPC: G21C17/10
Filed: 1961-12-29
Abstract: 992, 812. Electric measuring systems. NUCLEAR MATERIALS & EQUIPMENT CORPORATION. Dec. 29, 1961 [March 14, 1961], No. 31288/63. Divided out of 992, 811. Heading G1N. The Specification is identical with that of Specification 992,811, and relates to apparatus for classifying fuel pellets used in nuclear reactors, comprising means for conveying the pellets sequentially along a belt to a measuring station where the length, diameter and weight are measured electrically and compared with values representing standard length, volume and density. The claims are directed to the weighing apparatus which comprises a beam suspended by a tensioned torsion member whose twist is measured by a differential transformer. The output from the transformer is fed to a solenoid which co-operates with a permanent magnet to re-balance the beam.
Patent GB-263291-A (GB)
Title: Improvements in or relating to terminal connecting devices for high tension cables
IPC: H01R4/50
Filed: 1925-12-11
Abstract: 263,291. British Lighting & Ignition Co., Ltd., and Hutton, J. C. Dec. 11, 1925. Needde-point couplings. - A barbed spike forming the terminal connection of a high tension cable is longitudinally grooved so as to subdivide the barb into several. The barb a has a diameter about twice that of the neck d and is divided by grooves f to form three projections. The barb is made from metal rod of triangular, square, or round section. It is shown as applied to a distributor for a magneto or coil.
Patent GB-1269025-A (GB)
Title: Produce wrapper
IPC: B65D85/30
Filed: 1970-06-29
Abstract: 1,269,025. Packaging. STANDUN Inc. 29 June, 1970 [2 July, 1969], No. 31359/70. Heading B8C. [Also in Division A4] A polyethylene wrapper for fruit and vegetable produce includes a rectangular array of slits 20-23. After produce has been placed on the wrapper, the corners are lifted and knotted together, Fig. 2 (not shown), when the slits open to allow ventilation of the produce. An imperforate central portion 33 may be used for the application of a label.
Patent GB-299725-A (GB)
IPC: C25D3/02
Filed: 1928-10-29
Abstract: 299.725. Metallges. Akt.-Ges., (formerly Metallbank und Metallurgische Ges.). Oct. 27, 1927, [Convention date]. Copper, zinc, and other metals, depositing.- Smooth and dense deposits of metals are obtained by the addition to the bath of a hydrophilic inorganic colloid insoluble in the electrolyte in the absence of oxidizing agents akin to hydrogen peroxide care is taken that the colloidal material enters the cell in the required state of dispersion and that detrimental substances are not introduced with it. The colloidal material is not extracted from an ore in the formation of the electrolyte. The colloidal material should be added in very dilute form either continuously or in small amounts at short intervals. In electrolyzing solution obtained by leaching zinc oxide not containing silica with acid zinc sulphate solution the addition may consist of 0.25 gms. per litre of colloidal silicic acid obtained by mixing zinc silicate with a multiple of the amount of sulphuric acid required for decomposition. Smaller additions are necessary when the zinciferous material already contains silicic acid. The zinc silicate may be precipitated by the addition of water glass to neutral regenerated electrolyte, and the colloidal silicic acid obtained from the separated precipitate by addition of spent electrolyte. Alternatively an alkaline earth silicate may be employed as the source of silica. In the refining of copper, the colloidal addition may consist of hydrated tunstic acid obtained from copper tungstate by the addition of an equivalent amount of sulphuric acid. Metatitanic acid or zirconic acid may be employed as colloidal additions in the case of acid electrolytes, and ferric hydroxide or magnesium hydroxide in the case of alkaline electrolytes.
Patent GB-1069536-A (GB)
Title: Improvements in solid-state electron source
IPC: H01L27/00
Filed: 1964-08-04
Abstract: 1,069,536. Cathodes; semi-conductor devices. GENERAL ELECTRIC CO. Aug. 4, 1964 [Aug 5, 1963], No. 31432/64. Headings H1D and H1K. An electron source employing the tunnel effect comprises two layers of semi-conductive material 5, 6 separated by an insulating layer 7 having a thickness of the order of, or less than, the mean free path of an electron in the insulating material, an electric field being applied thereacross. -As shown, the electron source is supported on an envelope projection 3 of a discharge device, e.g. a valve, mass spectrograph, ion gauge, cathode-ray tube, magnetron or klystron, and comprises a layer 5 of N-type silicon, a silicon dioxide layer 7, 100  thick, and a layer 6 having a low electron affinity and a large diffusion length for high energy electrons, of Cs 3 Sb, Rb 3 Sb, Rb 2 Te, K 3 Sb, or (Cs)Na 2 KSb. A potential difference of 1 to 10 volts is applied across layers 5, 7, 6, and may be modulated to control electron emission. A conducting grid may be applied over layer 6 to improve its lateral conductivity. The N-type layer 5 may be produced from a silicon body by diffusion therein of antimony, arsenic or phosphorus, layer 7 being formed by subsequent oxidation, and layer 6 by vapour deposition of antimony in a caesium atmosphere.
Patent GB-485570-A (GB)
Title: Improvements in or relating to thermostatically operated control apparatus
IPC: G05D23/185
Filed: 1936-11-17
Abstract: 485,570. Conditioning air. CARRIER ENGINEERING CO., Ltd., and JONES, J. S. Nov. 17, 1936, No. 31500. [Class 137] [Also in Group XXIX] Apparatus for controlling the temperature of the atmosphere in an enclosure or building, comprises a valve 14, Fig. 1, controlling a supply of heating medium in a conduit 15 which is controlled by an indoor thermostat 10 of the expansible tube type having a valve member 6 co-operating with a seat 7, which regulates the supply of pressure fluid from a conduit 13 to actuate the valve 14. The thermostat 10 is controlled by a second outdoor thermostat 1 which regulates fluid pressure from a conduit 3 to effect, through a servomotor 8, the adjustment of the valve seat 7 of the thermostat 10 to modify the action of the latter according to the outdoor temperature. Alternatively the pressure conduits 3 and 13 may be arranged in series so that the pressure of the motive fluid is first regulated by the outside temperature thermostat and then acts on a bellows or piston to vary the setting of the indoor thermostat tube 4 carrying the valve member 6. In an arrangement, Fig. 4, for controlling the air temperatures in a number of different zones, such as the floors of a building, a separate inside thermostat 10 is provided for each zone for controlling both a supply of heating medium through a valve 14 and a ventilating damper 25. The thermostats 10 are controlled according to the outside temperature by the pressure in a line 3b, which pressure is regulated from a constant-pressure supply line 3 by a series of outdoor thermostats 1, 1A, AB which come into operation successively to operate valves 20, 21, 22 to supply either the full pressure from line 3 or reduced pressures through reducing valves 21a, 22a or a mixture of these supplies for varying the settings of the thermostats 10. This arrangement enables an approximately straight-line relation to be obtained between the settings of the thermostats 10 by the variable pressure in the line 3b and the outside temperature.
Patent GB-207985-A (GB)
Title: Clothes horse
IPC: A47G25/06
Filed: 1922-11-18
Abstract: 207,985. Neal, W. Nov. 18, 1922. Clothes horses consist of detachable rails d adapted to engage with slots formed in the legs b, which are provided with grooves c to house the rails when not in use. The centre legs are connected by fabric hinges, and the rails are held in their horizontal positions by turnbuckles d<1> engaging in slots formed in the rails.
Patent GB-321190-A (GB)
Title: The manufacture of water soluble condensation products
IPC: D06P3/16
Filed: 1928-06-28
Abstract: 321,190. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). June 28, 1928. Divided on 320,056. Sulphonic acids.-Water soluble condensation products are made bv sulphonating a mixture of an aromatic hydrocarbon or a hydroxy derivative thereof and a natural resin and then condensing with an aralkyl halide. They may be used in tanning and as auxiliary substances in dyeing and printing. In examples, (1) colophony dissolved in naphthalene or crude cresol is sulphonated and the product treated with benzyl chloride, (2) the sulphonated product from colophony and phenol is treated with o-chlorobenzyl chloride. Specifications 304,742, 305,269 and 314,588 are referred to.
Patent GB-618136-A (GB)
Title: A machine for removing foreign matter from waste paper
IPC: D21B1/02
Filed: 1946-10-25
Abstract: 618,136. Pneumatic separating; sifting apparatus. DRIBBELL. J. L. C. Oct. 25, 1946, No. 31661. [Class 117] A machine for removing dust and contraries from waste paper comprises a casing 1 with a chute 2 through which waste paper and contraries are delivered into the upper end of a rotating perforated drum 3. The mixture is agitated by beater ribs 11, or rows of spikes and the dust is drawn through the perforations by a fan 12 into a duct 13. The waste paper and heavier contraries falling from the lower end of the drum are acted upon by a stream of air from a blower 14, which blows the paper through an opening 15 on to a conveyor 16. Heavier objects such as metal, paper clips, string, tins &c., fall into a well or sump 17 from which they can be removed by a rake through an opening covered by a flap 18. Alternatively the well or sump 17 may accommodate a slidable box or equivalent which can be withdrawn through the opening. One or more rotatable or fixed rods may be fitted detachably in the lower part of the casing to separate string, rag &c., which may be carried with the paper towards the exit 15. According to the Provisional Specification, the fan 12 is driven by a spindle having a cog which meshes with a toothed ring 10 on the cylinder; doors are provided at the front and rear ends of the upper part of the chamber, and have trip switches to cut off the driving current when the doors are opened. In addition, the heavy contraries are removed through an opening in the floor covered by a " roll-top-desk " type of cover running in lateral grooves on either edge of the opening and continuing up one side of the casing. The cover is weighted to keep it closed, but may be opened by pushing against it a box, mounted on a trolley, which box slides in guides parallel with the edges of the roll.
Patent GB-360637-A (GB)
Title: Improvements in and relating to cellulose compositions
IPC: C08H8/00
Filed: 1930-10-22
Abstract: Cellulosic materials such as cornstalks, sawdust, bagasse, are disintegrated, digested with alkali, acidified to precipitate resins &c. on the fibres, washed to remove soluble bye-products, dried, powdered, mixed with an alkaline substance such as calcium hydroxide, and moulded under heat and pressure.  According to an example, 6 lbs. of sawdust, 2 lbs. of sodium hydroxide, and 1 gal. of water, are treated with steam at 160 lbs. pressure for 3-4 hours in a digester. 3 1/2 lbs. concentrated sulphuric acid in 3-4 gals. of water are added, and the mass is filtered and washed.  After drying at 80 DEG C., 5-40 per cent of calcium, barium or strontium hydrate is added and the mixed mass is moulded at 3000 lbs. pressure at 150-160 DEG C.  Resistance to moisture is improved by finer grinding, by prolonged heating at 150 DEG  C., or by the addition of small proportions of resins, natural or synthetic.
Patent GB-683764-A (GB)
Title: Improvements relating to the securing of closure members to liquid containers for domestic use
IPC: A47J27/21
Filed: 1948-12-08
Abstract: 683,764. Electric kettles. BRITISH THOMSONHOUSTON CO., Ltd., and SIMS, W. J. Nov. 17, 1949 [Dec. 8, 1948], No. 31774/48. Classes 66 and 125(iii) A liquid-container, e.g. an electric kettle 1 filled through the spout 4 and heated by an immersion element 5 or by an element on the bottom 3, has the bottom 3 detachably held in place by a split spring locking-ring 8 of L-, U-, or channel-section lodged between an inturned flange 9 and a shoulder 6, packing 7, e.g. of high-temperature-resistant  rubber or a silicone rubber, being fitted. Heatinsulating feet 10 may be secured to the bottom 3.
Patent GB-409417-A (GB)
Title: An improved coupling for tractor and trailer units of motor vehicles
IPC: B62D53/08
Filed: 1932-11-10
Abstract: 409,417. Tractor - trailer arrangements. NORTH, O. D., 76, Elm Park Mansions, Park Walk, Chelsea, HUGH, P. G., and SCAMMELL LORRIES, Ltd., 52, High Holborn, both in London. Nov. 10, 1932, Nos. 31776/32 and 9776/33. [Class 79 (iii).] Relates to tractor-trailer couplings associated with means on the trailer for lowering a supporting wheel or wheels when uncoupling and raising these when coupling. Coupling is effected by backing the tractor 1, Fig. 3, into the trailer 2 so that flanged rollers 4 on the latter are engaged and raised by ramps 3 on the former. The rollers 4 are mounted on the ends of a transverse beam 8, Fig. 4, held between lugs 7 on a turntable 5 pivotally mounted on the trailer. A bolt 28, Fig. 5, passes through the lugs 7 and loosely through a central hole 27 in the beam 8, allowing the latter a certain amount of pivotal movement about a longitudinal axis to compensate for differences of inclination between the tractor and trailer when being coupled ; this movement is limited by pins 29 which engage slots in the beam 8. In order to support the trailer when not associated with the tractor, wheels 10 are provided which are adapted to be lifted clear of the ground automatically when coupling takes place. This is effected by mounting the wheels on pivoted arms 9, Fig. 5, normally locked in position by spring- controlled toggle links 19, 20 ; as the rollers 4 ride up the ramps 3, a member 18 on the tractor first abuts against a plate 26 carried by spring- pressed hooks 23 and disengages them from pins 24 on the arms 9, and then engages a roller 17 mounted co-axially with the pivotal point 16 of the toggle mechanism, thereby operating the latter to lift the wheels 10. When the rollers 4 come to the top of the ramps 3 they engage spring-pressed buffers 32, and simultaneously auxiliary rollers on the beam 8 engage interconnected locking hooks on the tractor which may subsequently be released for uncoupling in any convenient manner. The apparatus may be associated with the braking mechanism described in Specification 409,500, [Group XXXI].
Patent GB-914201-A (GB)
Title: Improvements in and relating to earth leakage protecting systems for alternating current apparatus or machinery
Inventor: VAUGHAN CYRIL HUGH
IPC: H02H11/00
Filed: 1958-10-06
Abstract: 914,201. Protective cut-out arrangements. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 6, 1959 [Oct. 6, 1958], No. 31836/58. Class 38 (5). In a protective arrangement for an A.C. machine or apparatus having a frame EF connected to earth at a remote point EW, the earthing path includes a transformer TR 2 , a capacitor CA and one of a pair of wires W 1 , W 2  extending from the frame to the remote point, the wires being connected together in a loop including a D.C. source TR 1 , RF 1  and a relay RDC for monitoring the continuity of the wires. When either or both of the wires W 1 , W 2  become open-circuited the relay RDC opens contacts RD1 in series with the coil CTC of a contactor having contacts CT 1 , CT 2  controlling the supply to the machine or apparatus. In the event of earth leakage from the machine or apparatus, the resulting A.C current flows through the wire W 1 , a test switch TS, the capacitor CA and a transformer TR2 so energizing an earth-leakage relay RBC over a rectifier RF 2 . The relay RBC opens contacts RB 1  in series with the contactor coil CTC and closes contacts RB 2  to energize a trip coil TC and cause the opening of contacts MSC in series with the D.C. supply source TR 1 , RF 1 . The contacts MSC can only be reset by hand.
Patent GB-916871-A (GB)
Title: Improvements in or relating to supports for elements in atomic piles or reactors having vertical channels
Inventor: AUBERT MICHEL
IPC: G21C3/38
Filed: 1959-09-18
Abstract: 916,871. Fuel elements. COMMISSARIAT A L'ENERGIE ATOMIQUE. Sept. 18, 1959 [Sept. 18, 1958], No. 31852/59. Class 39 (4). A fuel element in a vertical channel of a nuclear reactor is surrounded by a shell 6 having an internal ledge on which rest fuel element fins 3 and a part having a conical opening and indentations into which the fins fit. The part may be integral with the shell or may be separate as shown at 5 and 11. The shell has an extension 7 and a spherical bearing surface 8 to engage adjacent shells, and a groove 9 for engagement by a discharging device. The shell is graphite, the fuel uranium sheathed in Mg or Al. This type of support may also be used for irradiating specimens.
Patent GB-1428533-A (GB)
Title: Centrifugal pump
IPC: F04D29/04
Filed: 1973-07-04
Abstract: 1428533 Centrifugal pumps KONINKLIJKE MACHINEFABRIEK STORK NV 4 July 1973 [4 July 1972] 31912/73 Heading F1C A vertically disposed centrifugal pump for fluid metal, e.g. sodium, comprises a rotor journalled in a hydrostatic bearing, the rotor being provided with an auxiliary impeller whose suction side communicates with the pressure space of the pump and whose pressure side communicates with the bearing so as to feed pumped fluid to the bearing, the fluid being discharged from the bearing to a low-pressure space in the pump. The pump depends from the top wall of a vessel 2 containing the fluid to be pumped. The impeller shaft 4 is journalled in a hydrostatic bearing comprising a stationary sleeve 20 and a sleeve 21 secured to the impeller 3. An auxiliary impeller 22 draws in fluid downstream of diffuser vanes 6 and impels it through a bearing gap 23 to a space 17 which communicates via apertures 18 in the vanes 6 with the space within the vessel 2. In a modification, the inner sleeve of the bearing is stationary and the outer sleeve is carried by the impeller, the auxiliary impeller then being formed on the back of the impeller 3.