baber/WOPTO huggingface dataset:
Patent GB-538669-A (GB)
Title: Improvements in and relating to electric flash lamps
IPC: F21K5/08
Filed: 1940-03-14
Abstract: 538,669. Flash lamps. BRITISH THOMSONHOUSTON CO., Ltd. March 14, 1940, No. 4768. Convention date, March 16, 1939. [Class 9 (ii)]  Pure aluminium in the form of fine wire or ribbon 11 is fired in a flash lamp 10 by a primer comprising a heating element 12 embedded in a bead 17 consisting of metal powder and potassium perchlorate in a slow-drying binder. An asbestos or like heat-insulating disc 16 is mounted on the stem 14 to shield the base of the lamp. The fulminating substance 17 may consist of zirconium powders of graded mesh and the perchlorate in a non- gummy binder, a preferred composition being given as :-1 per cent. 'glue water, 5 c.c.s ; potassium perchlorate, 4 grams; and 2.6 grams each of zirconium powder-one of 325 mesh and the other much finer. The glue binder may be replaced by a solution of cellulose acetate (8 grams) in acetone and ethyl lactate (100 c.c.s each). In this case, a preferred composition is given as :-4 per cent. cellulose acetate solution, 5 c.c.s; potassium perchlorate, 5 grams ; and 3“ grams each of the graded zirconium powders. The finer-mesh zirconium powder may be replaced by tungsten powder of approximately 325 mesh, a preferred composition being a 4 per cent cellulose acetate solution, 3 c.c.s; potassium perchlorate, 5 grams; zirconium powder, 2.6 grams; tungsten powder, 4 grams. The filament 12 is covered, by successive dippings and dryings. Specifications 491,206, 503,070, [Group XXII], and 527,882 are referred to.
Patent GB-684090-A (GB)
Title: Apparatus for removing or inserting engine cylinder liners or sleeves
IPC: B25B27/02
Filed: 1949-02-22
Abstract: 684,090. Removing or inserting engine cylinder sleeves. CHICAGO PNEUMATIC TOOL CO. Feb. 22, 1949 [April 7, 1948], No. 4794/49. Class 61 (iii). A device for removing or inserting an engine cylinder sleeve 22 comprises an hydraulically operated piston 32 working in a cylinder 31 and secured to a bushing 47 which may be fitted either in the end of the sleeve or in a skirted member 51 engageable with the engine block, the cylinder having attached thereto pull rods 36 slidable in the bushing and secured to a plate 39 located within the sleeve. The plate 39 is adapted to receive either a puller assembly 61, Fig. 2, for removing the sleeve or a crank shaft hook 86, Fig. 12, for use during insertion thereof. The assembly 61 is screwed to the plate 39 and comprises a holder 62 having an enlarged head 63 with a large peripheral opening in which puller segments 65 spring-urged outwardly into engagement with the end of the sleeve, are radially adjustable. A plate 72 slidable on the holder 62 and spring biassed away from the head 63 has attached thereto push rods 76 slidable in apertures in the plate 39, and pins 71 for radially retracting the segments 65. The sleeve is withdrawn from the engine block by moving the work cylinder 31 outwards to the left by means of a foot controlled pump. On completion of the pulling action the push rods 76 contact the bushing 47 whereupon the pins 71 ride on inclined surfaces on the bottom of slots in the periphery of the segments 65 and release the latter from engagement with the inner end of the sleeve 22. The withdrawn sleeve drops. into the skirted member 51. For inserting the sleeve 22 into the engine cylinder (Fig. 12) the assembly 61 is replaced by the hook 86 which is. adapted to fit about a large or small part of the crank shaft. The bushing 47 is fitted into the end of the sleeve 22 and the latter is pushed into the engine cylinder by moving the piston 32 outwardly of the working cylinder. Specification 657,222, [Group XXVI], is referred to.
Patent GB-1153122-A (GB)
Title: Filling Wall Cavities with Insulating Foam
Inventor: HAYSON JOHN TREVOR
IPC: C08J9/30
Filed: 1966-02-03
Abstract: 1,153,122. Mixing and aerating apparatus. IMPERIAL CHEMICAL INDUSTRIES Ltd. 2 Dec., 1966 [3 Feb., 1966], No. 4803/66. Heading B1C [Also in Division E1] Apparatus for generating foam for filling a wall cavity comprises a foaming device 10 having supply lines 15, 17 respectively for premixed resin/foaming agent and air, the air inlet 17 being arranged to create a tubulent swirling mixing action. The main section of the device is filled with glass beads 12 retained by gauze 13. Acid hardening agent is introduced via line 18 and nozzle 19 into the direction of flow of the froth formed by the mixture of resin, foaming agent and air. A flexible outlet tube 21 is provided for delivering foam to its point of use. Flushing water may be supplied to the device through a line 20. The materials supplied through the lines 15, 18 and 20 are delivered from sealed containers under air pressure.
Patent GB-470506-A (GB)
Title: Improvements in safety switches for electrically heated appliances
IPC: H05B1/02
Filed: 1936-02-17
Abstract: 470,506. Thermal switches. BULPITT & SONS, Ltd., and BULPITT, W. H. Feb. 17, 1936, No. 4834. [Class 38 (v)] In a safety switch for an electrically-heated appliance of the kind which includes a safety device having two members normally retained in a certain relative position against spring pressure by means of a fusible metal joint and wherein after operation on melting of the fusible metal the members automatically move back into their initial relative position so that the safety device can then be reset by hand, switch contacts are provided with a spring normally urging said contacts to a closed position and a member connected to or engaging one of said contacts is adapted to be operated by said safety device to open said switch contacts against the action of said spring on operation of said safety device. As shown in the Figure, the end of a fusible release unit 16, 17 of the type described in Specifications 329,406, [Class 38 (v)], and 367,268, bears against the enlarged end 19 of an insulating pin the reduced portion 29 of which extends through a hole 18 and apertures in contact plates 25, 26 into a recess in the end of a resetting knob spindle 35. The contact plates are normally pressed into engagement by a spring 33, but on release of the fusible element the shoulder on the sliding rod 19 is moved into engagement with the contact plate 26 and moves it away from the relatively fixed contact plate 25 so breaking or modifying the heating circuit. The fusible member is reset and the heating circuit reconnected by depression of the knob 35.
Patent GB-327807-A (GB)
Title: Improvements relating to electric switching arrangements for ring main circuits
IPC: H02B1/00
Filed: 1929-02-13
Abstract: 327,807. Drake & Gorham, Ltd., Harmer, A. F., Holding, G. H., and Pengelly, P. J. Feb. 13, 1929. Switching systems.-A branch circuit (for example a consumers' circuit 3a, 3b, 3c) is taken off a ring-main distribution system 1a, 1b, 1c at a point between two independently-operable oil circuit-breakers B<1>, B<2> located in the ring main. As shown in Fig. 1, where the circuits of one of the phases are indicated, the circuit-breakers, which are of the kind described in Specification 304,386, [Class 38 (v), Electric switches &c.], are connected to the ring main through main isolating switches S<1>, S<2>, and the branch circuit connected to the mid-point through a branch isolating switch S<3>. The switchgear employed is shown in Fig. 2 ; the isolating switches S<1>, S<2>, S' which are operated by a removable handle 23 are interlocked in known manner with the oil circuitbreakers B<1>, B<2>, which are provided with operating handles 21 and tripping mechanism 22. The oil tank 24 is interlocked with the isolating switches so that it can be lowered only when the isolating switches are in their open position. A further circuit-breaker may be provided in the branch circuit and be interlocked with the two main circuit-breakers so as to open when they both open and to be prevented from reclosure until one or other of them has been re-closed.
Patent GB-541474-A (GB)
Title: Improvements relating to permanent magnets
IPC: C22C38/08
Filed: 1941-04-15
Abstract: 541,474. Making permanent magnets. MOND NICKEL CO., Ltd. April 15, 1941, No. 4915. Convention date, April 18, 1940. [Classes 83 (ii) and 83 (iv)] [Also in Group II] Working at specified temperatures.-Permanent magnets are hot forged from cast alloys containing 5-95 per cent of aluminium, 1-3 per cent of titanium, 20-30 per cent of nickel and the balance iron, with or without up to 1 per cent of copper, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, cobalt, and manganese; up to 0.1 per cent of calcium, barium or strontium, and less than 0.2 per cent of carbon. Boron, lead, arsenic, antimony, bismuth, sulphur, selenium, tellurium, silver, tin and phosphorous should be absent or low. The alloys may be forged within the temperature range 2,475‹ F. to 2,000‹ F. and in many cases as low as 1,800‹ F. For machining, e.g. drilling, the wrought alloy may be softened by heating to a temperature above 1,200‹ F. such as 1,500‹ -1,800‹ F. and then cooling slowly, or the hot working may finish in this temperature range and be followed by slow cooling.
Patent GB-325896-A (GB)
Title: Improvements in or relating to tobacco-feeding machines
IPC: A24C5/39
Filed: 1928-10-27
Abstract: 325,896. Grupe, W. F. Oct. 27, 1928. Divided on 325,864. Tobacco - feeding mechanism. - In a a machine in which tobacco from a hopper 12 is fed bv a carded roller 13 and a picker roller 16 to a carded roller 19 or other conveyer, a guiding shoot 17 leading from the picker to the conveyer has longitudinal ribs 29 and side walls 18 for preventing undesired lateral movement of the tobacco. As shown in Figs. 1, 4 and 5, each of a series of conveyers 19, 24, 25 is narrower than the preceding one, and each shoot 17 and its ribs 29 converge towards a point beyond the conveyers. In an alternative construction, the conveyers 19. 24, 25 are of equal width and the ribs 29 and walls 18 are parallel. Fig. 6 shows a modified guiding shoot in which the ribs are formed by longitudinal corrugations 30, and Fig. 8 a shoot having ribs 31 equal in depth to the walls 18. The surface speed of successive conveyer rollers may vary as described in Specification 322,821. Specification 325,864 also is referred to.
Patent GB-1536924-A (GB)
Title: Crane structure
IPC: B66C23/36
Filed: 1977-01-27
Abstract: 1536924 Cranes M I BLATCHFORD 27 Jan 1977 [9 Feb 1976] 04936/76 Heading B8B [Also in Division F2] An extension 12 of a bolster 10 along which a crane pillar is movable (see Specification 1,512,633) is swingable through 130-150 degrees about a hinge pin 58 between a raised inoperative position (full lines) and a lowered operative position (chain-dotted lines) by an hydraulic ram 50 mounted on the extension 12 and whose piston rod 52 is pivotally connected to a link 53 pivotally connected at 54 to the bolster, the pivot between the rod 52 and link 53 being guided, e.g. by rollers 56, so as to maintain the line of thrust of the ram offset from the hinge pin 58.
Patent GB-470352-A (GB)
Title: An improved fountain
IPC: B05B17/08
Filed: 1936-02-18
Abstract: 470,352. Fountains. OGILVIE, D. Feb. 18, 1936, No. 4980. [Class 69 (i)] A self-contained fountain comprises a basin cast in concrete or artificial stone with an integral side chamber C in which is housed and concealed a pump P and driving motor, together with the suction pipe S and connection D<1> to the delivery pipe D<2> leading to the central jet-pipe J. In the form shown the chamber C is divided by a floor F, the upper compartment containing the motor, to which access is given by a door d. The pipe D<2> is cast in the floor of the basin.
Patent GB-347354-A (GB)
Title: Improvements in machines for breaking gravel, stone and like material
IPC: B02C13/06
Filed: 1930-02-14
Abstract: 347,354. Impact pulverizer mills. LEA, T., 32, Merridale Road, Wolverhampton. Feb. 14, 1930, No. 4981. [Class 59.] In an impact pulverizer the beaters M pass close to the wall E beneath the inlet B and such wall passes quickly away from the path of the beaters in a forward and upward direction whereby lumps of material as they enter the casing are caused by the beaters to be thrown up against the roughened surface of the top of the casing and broken into small pieces but without any grinding action. The beaters M are wedge-shaped and are supported by their ends on discs H fixed on a shaft F. Wedge blocks K secure the beaters to the discs and are secured by bolts J which pass through the discs and lugs k on the wedge blocks. The impact surfaces on the casing comprise wedge-shaped bars D which progressively approach the beaters in the direction of rotation. The outlet C may be covered by a screen.
Patent GB-684136-A (GB)
Title: Improvements in tubulous vapour generating, superheating and reheating units
IPC: F22G1/04
Filed: 1951-03-01
Abstract: 684,136. Superheating and reheating steam &c. BABCOCK & WILCOX, Ltd. March 1, 1951 [March 1, 1950], No. 4986/51. Classes 123 (ii) and 123 (iii) A steam, &c. boiler comprises furnace chambers 10, 42, which are lined with steam-generating tubes 76, have a common tube wall 48, and are separately fired by opposed burners 60, 62 and 64, 66 respectively, superheater sections 18, 19, 22, 21 located in a gas pass extending laterally from the upper part B of the furnace 10, and reheater sections 56, 58 in a gas pass leading from the upper part A of the furnace 42 to said other furnace part B. The superheater sections 22, 21 and reheater sections 56, 58 are preferably protected from radiant heat by arches 70, 84, and the reheater is screened from the upper part of the furnace 10 by the tubes 44, 46 of the wall 48. An attemperator 34 is fitted between the outlet header 30 of the superheater sections 18, 19 and the inlet header 38 of the sections 21. 22.
Patent GB-1040361-A (GB)
Title: Improvements in or relating to ships' derricks
IPC: B66C23/84
Filed: 1964-01-23
Abstract: 1,040,361. Hydraulically slewed ships' derricks. ATLAS WERKE A.G. Jan. 23, 1964 [Jan. 23, 1963], No. 3051/64. Heading B8B. A ship's derrick 1, Fig. 1, slews through twice the angle through which a lever 9 is rotated about an axis 10 by rams 11, 12, Fig. 2, due to a pin and slot coupling 7, 8, which links the lever 9 to an arm 6 fast with the derrick 1. A column 4 mounted in bearings 5, 5<SP>1</SP> pivotally supports the derrick and is fixed to the arm 6. The rams, of which only one may be provided, are pivoted about axes 13 and can slew the derrick through 200 degrees. The pin 7 may engage a block which slides in the slot 8.
Patent GB-1038172-A (GB)
Title: Improvements in and relating to halogenated diphenyl derivatives and methods of manufacturing them
IPC: C08K5/12
Filed: 1963-02-07
Abstract: Compounds of formula Ar (O-R2-CO2R1)n, wherein Ar is a halogenated diphenyl residue, R1 is H or C1- 4 alkyl, R2 is a divalent saturated or unsaturated hydrocarbon radical and n is 2-4, are made by reacting an alkaline salt of Ar(OH)n with X-R2-CO2R1, X being halogen. Examples describe the preparation of bis-(carboxymethoxy)octachlorodiphenyl and its ethyl ester.ALSO:A setting agent for epoxy resins has the formula Ar(O-R2-CO2R1)n, wherein Ar is a halogenated diphenyl residue, R1 is H or C1-4 alkyl, R2 is a divalent saturated or unsaturated hydrocarbon radical and n is 2-4.  Specified agents are bis-(carboxymethoxy) octachlorodiphenyl and its ethyl ester.  Preferred resins are glycidyl polyethers derived from e.g. epichlorohydrin and butanediol, glycerine, resorcinol, hydroquinone, diphenylolpropane or octachlorodihydroxydiphenyl.  Also mentioned are epoxides of polybutadiene, linseed and soybean oils, dipentene and 4-vinylcyclohexene. Maleic anhydride is also specified as an ingredient.
Patent GB-124287-A (GB)
Title: Improvements in and relating to Apparatus for Humidifying or Filtering Air or other Gases.
Inventor: DUNKER LOUIS
IPC: F24F6/06
Filed: 1918-03-22
Abstract: 124,287. Dunker, L. March 22, 1918. Air and gases, washing. -An apparatus for washing air and gases, of the kind in which the gases are passed between filter plates wetted by means of a sprinkler arm moving in proximity to the upper edges of the plate as described in Specification 112,653, is constructed with a rectangular casing formed of plates of standard sizes so that the capacity of the apparatus may be increased by increasing the length or width of the apparatus by adding standard plates and increasing the number of filter plates. As shown, a number of filter plates 7, adapted to be wetted by sprinkler arms 8 carried by plates connected to upper and lower racks 24 engaged alternately by a multilated gear which reciprocates the plates, are arranged in a casing formed of bottom plates 1, 2 of standard dimensions, end plates 3, 4, and side plates (not shown). The gases enter by grid openings 27, and finally pass to drying-plates 10 after being washed. To increase the size of the filter, an additional bottom plate 11 is added, and also two additional side plates, the end plates 3, 4 being the same as before. An additional sprinkler is added by connecting it to the supporting-plates of the sprinklers 8, or by employing new and larger supporting-plates. The width of the casing may be extended in a similar manner. The sprinklers are supplied by flexible pipes from a pipe 9.
Patent GB-197744-A (GB)
Title: A combined elevator and conveyor of the step or stairway type
IPC: B66B23/14
Filed: 1922-02-21
Abstract: 197,744. Hendry, J., and Bickford & Sons, Ltd., A. M. Feb. 21, 1922. Moving stairways, platforms, and the like.-A combined conveyer and elevator of the moving stairway type comprises a series of platforms 15 each of which is pivotally connected at one end by a member 18 to the axle of a roller 20 of an endless chain 21 and at the other end is supported by a pair of wheels 22. On the upward run the rollers 20 run on a central rail 25 and the wheels 22 on side rails 26, flanges 27 and guard rails 36 being provided to keep the rollers and wheels, respectively on the rails. The wheels 22 are slipped on to the axles 23 and if displaced so as to run on the rail 36 are returned to normal position by inclined openings 37, Fig. 8, in the rails 36. On the downward run, the rail 25 is dispensed with. The front and rear edge 17 of each platform may be bevelled and each platform may have a covering 16 of rubber fabric.
Patent GB-1394991-A (GB)
Title: Potentiometer
IPC: H01C10/32
Filed: 1971-02-23
Abstract: 1394991 Measuring liquid level G S M ELECTRICAL CONTROLS Ltd 20 April 1972 [23 Feb 1971] 5171/71 Heading G1N [Also in Division H1] A potentiometer comprises a pivoted magnet 50 rigidly connected to a conductive wiper arm 44 which wipes across a resistive coil 28 as the magnet turns. In one embodiment the wiper arm moves under the influence of a control magnet 12 Fig. 1, attached to a float in a chamber containing liquid. The control magnet moves inside a closed tube 10 that extends vertically above the float chamber of the liquid container and that is clamped in a base 16 by means of a clamping screw 18. The pivoted permanent magnet 50 is rigidly connected to the potentiometer wiper 44 by means of a sheet of electrically insulating material 42. The wiper arm, which may be of circular cross section, engages the resistance coil 28 under the influence of the magnetic force between the ferrous bearing screw 36 and nut 37, and the magnet 50. The nut 54 acts as a counterbalance for the magnet 50. Adjustment of the apparatus may be made by movement of the tube 10 and/or the coil 28 with respect to the base 16.
Patent GB-105127-A (GB)
Title: Improvements in Devices for the Transference of Heat between Liquids and Vapours or Gases.
Inventor: SAWYER RICHARD
IPC: B61D27/00
Filed: 1916-04-08
Abstract: 105,127. Sawyer, R., and Illston, A. C. April 8, 1916. Concentric or jacketed straight-tube apparatus. -An apparatus for heating water by means of steam, applicable for use on railway trains, is formed of three concentric tubes a, f, h, the fluids flowing only through the annular spaces. The tube a is screwed into the end castings c, d, while the tubes f, h are carried by end pieces e, g, the latter of which slides in the casting c to allow for expansion. Steam enters at c', and water at e<1>. The Provisional Specification states that the apparatus may be used for condensing steam &c.
Patent GB-327377-A (GB)
Title: Improvements in or relating to plate heat exchange apparatus employing condensable gas or fluid
IPC: F28F3/08
Filed: 1929-03-06
Abstract: 327,377. Seligman, R. March 7, 1928, [Convention date]. Divided on 307,425. Plate apparatus. -, A heat-exchanger is made up of plates with facial grooves or ribs 1 which with a plain plate form zig-zag channels, the plates s also having interiorly formed passages constituted by short baffles 17 leaving spaces 18 and 18<1> at each end. The plates may be divided through the middle of the baffles and the passages may be provided with spirals or the like to produce turbulence.
Patent GB-349121-A (GB)
Title: Improvements in or relating to the manufacture of crepe-like fabrics
IPC: D03D15/567
Filed: 1930-02-17
Abstract: 349,121. Crape fabrics. BRITISH CELANESE, Ltd., 22, Hanover Square, London. Feb. 17, 1930, No. 5264. Convention date, Feb. 15, 1929. [Class 142 (iv).] Fabrics with crape-like, cockled, or pebble effects are produced by using, in the warp or weft or both, yarns which have been permanently stretched in combination with unstretched yarns, or by alternating yarns which have been stretched to one degree with yarns which have been stretched to a different degree. Subsequent treatment of the fabric with water or with aqueous liquids containing soap or the like effects a shrinkage of the stretched yarns and a consequent crinkling of the unstretched yarns or those yarns that have the lesser degree of stretch. Low or high twist yarns of cellulose acetate or other organic derivative of cellulose, natural silk, cotton, regenerated cellulose, or wool may be used.