baber/WOPTO huggingface dataset:
Patent GB-791792-A (GB)
Title: A dehydrochlorination process
IPC: C07C17/25
Filed: 1956-04-05
Abstract: Vinyl chloride and vinylidene chloride and mixtures thereof are made by contacting 1 : 1-dichloroethane and 1 : 1 : -trichloroethane and mixtures thereof respectively at a temperature between 150 DEG  C. and 500 DEG  C. with a salt or oxide of a metal of groups I, II, IV, V, VI and VII of the periodic table. Suitably the catalyst is a metal halide such as zinc, magnesium, cadmium, copper or manganese chloride, supported on a carrier such as pumice, silica, silica gel, asbestos, charcoal, magnesia, silica-alumina, diatomaceous earths or preferably, activated alumina.  Many other catalysts are specified. The reaction may be carried out as a batch operation or continuously, the preferred method being a continuous operation using the catalyst as a packed bed or, more suitably, in the fluidized condition.  The preferred temperature range is from 250 DEG  to 320 DEG  C.  The reaction conditions permit selective dehydrochlorination of 1 : 1-dichloroethane in the presence of 1 : 2-dichloroethane at 150 DEG to 320 DEG  C., whereby vinyl chloride and 1 : 2-dichloroethane may be separately recovered from the reaction mixture.  Examples describe the dehydrochlorination of 1 : 1-dichloroethane and 1 : 1 : 1-trichloroethane in the presence of a number of specified catalysts according to the invention.
Patent GB-351584-A (GB)
Title: Improved method of and apparatus for extracting and sampling dust from dust-laden air or gas flowing in a conduit
IPC: G01N1/22
Filed: 1930-04-02
Abstract: <PICT:0351584/III/1> In a device for withdrawing and estimating the dust in a sample of dust-laden gas flowing through a conduit, the sampling nozzle itself is used as a pilot tube for determining the fluid pressure conditions both within the conduit and within the nozzle itself. The nozzle 15 which faces the gas current in the conduit 5 communicates through a cock 16 with a dust extractor 18 and suction fan 20.  Small tubes 21, 23 are fitted on the inside and outside respectively of the nozzle and have openings 26, 27 at right-angles to the gas current.  Manometers C, A'have one limb open to the atmosphere and the [other limb connected to tubes 21, 23 respectively,] while manometer B is connected across the tubes 21, 23.  Manometer C indicates the static pressure in the conduit. When cock 16 is closed the nozzle 15 and tube 23 convey both the static pressure and the impact pressure of the gas to manometer A, while B registers the impact pressure alone.  When cock 16 is opened to withdraw a sample the suction is regulated until manometers A, C give the same reading.  The gas velocity meters A, C give the same reading.  The gas velocity in the nozzle is then the same as that in the conduit and the amount of dust passing through the latter is readily calculated from the test of the sample withdrawn.
Patent GB-105728-A (GB)
IPC: F42B6/00
Abstract: 105,728. Britains, Ltd., and Britain, W. Dec. 9, 1916. Projectors and projectiles.-A toy gun resembling an howitzer has a swinging breech - block containing a rotatable member provided with means for engaging a projectile element within the breech to release a part of the projectile for firing; and the projectile itself comprises two normally interconnected members, one of which is adapted to be retained within the gun and the other to be projected therefrom on firing. The hinged breech-block f, Fig. 2, containing a rotatable spring-controlled disk g, is secured by a swinging loop f<2> on the barrel engaging a lug f<1> on the block. The projectile, Fig. 3, comprises two members h, h<1> enclosing a coiled spring i<2> which surrounds the central boss i of the rear member h<1>. A rod j, passing through the boss i and having its ends bent, normally holds the members h, h' together. The projectile is inserted into the breech of the gun with a lug on the rear member h<1> engaging a recess in the breech, and, when the breech-block is closed, lugs g<2> on the disk g engage the rear end j<1> of the rod j. On turning the disk g against the action of its spring g<1> by means of the firing-lever g<3>, the forward bent end l<2> of the rod is brought into alinement with the slot l<1> in the nose of the member h of the projectile, whereupon the member h is projected from the gun by the spring i<2>, The barrel d of the gun, which is mounted on trunnions in the side frames a, a<1> and provided with recoil and sighting apparatus d<1>, d<2>, is elevated by a screw e<3>, which is mounted in a groove a<2> in the frame a and operated by means of a hand-wheel e<4>. Means may be provided for adjusting the relative positions of the members h, h<1> when assembled, to vary the range. A device consisting of a tube or sleeve with parts cut away and a plunger or the like may be provided for use in assembling the members h, h<1>,
Patent GB-473308-A (GB)
Title: Improvements in or relating to slidable boxes or containers
IPC: B65D47/28
Filed: 1936-04-09
Abstract: 473,308. Boxes. HUDSON SCOTT & SONS, Ltd., and IRVING, J. B. April 9, 1936, No. 10579. [Class 18] A box with a flanged cover is provided with an aperture e in the cover flange normally covered by the wall of the box body. Alternatively, the aperture e may be in the body wall, and may normally be covered by the flange of the cover. Indentations c in the cover flange engage in and are guided by grooves d in the body wall. The groove d may be helical. Projections f may be provided upon the body part to facilitate opening of the box.
Patent GB-254433-A (GB)
Title: Improvements in apparatus for washing plates, dishes and the like
IPC: A47L15/24
Filed: 1925-04-23
Abstract: 254,433. Hetherington, J., King, F., and Avamor Engineering Co., Ltd. April 23, 1925. Plates, dishes, and the like, washing.-The articles to be washed are carried in containers by flexible conveyors past washing sprays and through two or more superimposed tanks, the whole apparatus being surrounded by a casing. As shown, a washing tank b and a rinsing tank c are supported within a casing a and are provided, respectively, with gas heating means d, e and with connections to a rotary pump f. Each tank may also be provided with means for steam heating and with thermostatic means for controlling the supply of gas or steam. The containers l for the dishes are carried by a system of conveyors such as a duplex chain i, i<1>, passing over pulleys, and driven by a motor q through a spring-pressed clutch adapted to be disengaged by means of a treadle and a Bowden wire. The washing sprays comprise a U-shaped pipe m the limbs of which have lateral extensions n perforated to direct the liquid against the coniainers. In conjunction with the gas heating means d, e, there may be provided flues p, o leading to a drying zone through which the containers for the dishes pass after leaving the rinsing tank. One set of rinsing and washing tanks may be made to serve apparatus for several floors of a boiling, each floor having an independent system of flexible conveyors and the tanks being situated in the basement.
Patent GB-626605-A (GB)
Title: Improvements in or relating to fluid control units
IPC: G05D7/01
Filed: 1944-06-02
Abstract: 626,605. Fluid-actuated valves. DOLE VALVE CO. June 2, 1944, No. 10644. Convention date, Jan. 13. [Class 135] A fluid flow control device particularly suitable for controlling the operations of a washing machine comprises a diaphragm valve 20 controlled by an electromagnet 34. in accordance with a timing device 63. When the magnet is not energized the end 33 of its armature 32 closes a central aperture 30 in the diaphragm 20 and allows the pressure of the fluid to build up behind the diaphragm through holes 26<SP>1</SP> and keep the valve closed. On energization of the magnet the armature 32 is raised and the pressure behind the diaphragm released to allow the valve to open. A flow regulating device is also provided at 42 comprising a rubber or like elastic washer 50 which is deformed by the pressure of the fluid to restrict the central orifice and maintain the flow constant. Specifications 610,309, 626,606, 626,607 and 626,608 are referred to.
Patent GB-181686-A (GB)
Title: Apparatus for cleaning the bowls of centrifugal separators
IPC: B04B15/06
Filed: 1922-04-13
Abstract: 181,686. Aktiebolaget Separator. June 17, 1921, [Convention date]. Density separatnrs.--The drums of centrifugal separators are cleaned by means of a washing apparatus consisting of a stand A which supports the drum and a member B which conveys the washing fluid. The member B may be a pipe coil as shown in Fig. 1 with outlet openings, or it may be a hollow annular member with openings in the outer wall, or it may be a pipe parallel to the axis of the drum as shown in Fig. 3. The stand A may be constructed to permit rotary and axial movement of the drum. Valves H control the admission of the washing water and steam and the vessel D with a drain cock E receives the slime. The outlet F limits the level and the pipe G conducts away air and uncondensed steam. The member containing the outlets may be rotated.
Patent GB-927111-A (GB)
Title: Improvements relating to luminescent materials or phosphors
Inventor: WELLS ROBERT STIRLING
IPC: H01J29/20
Filed: 1960-03-25
Abstract: 927,111. Luminescent materials. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 17, 1961 [March 25, 1960], No. 10701/60. Drawings to Specification. Class 39 (1). A luminescent material which emits radiation in the erythemal region (about 3000 Š) when excited by radiation in the short U.V. region, particularly 2537 Š for use in low-pressure mercury vapour discharge lamps, consists of strontium aluminate activated by lead. The molecular proportion of SrO to Al 2 O 3  can be between 0.3 and 0.6: 1 preferably 0.4 : 1, and the molecular percentage of PbO to Al 2 O 3  can be between 2.8 and 0.7 : 1, preferably 1.4 : 1. The material is prepared by mixing SrO or Al 2 O 3  (or compounds such as SrCO 3  and Al(OH) 3  which produce the oxides on heating) with PbO or PbF 2 , heating the mixture at a temperature of between 1100‹ C. and 1200‹ C. in an oxidising atmosphere, cooling and powdering.
Patent GB-315211-A (GB)
Title: Improvements in or relating to rotors for high-capacity steam turbines
IPC: F01D5/30
Filed: 1929-04-06
Abstract: 315,211. Soc. Rateau. July 9, 1928, [Convention date]. Addition to 309,181. Blades. - In steam turbine wheels in which, as in the parent Specification, outer blades i, i<1> are superposed upon inner blades a, the blades i are formed integral with the blades a of the inner ring, and the alternate blades i<1> have roots c<1> which interlock with intermediate parts b of the double blades a, i. The roots c' may be hollowed out.
Patent GB-539759-A (GB)
Title: Improvements in hosiery and process and apparatus for making
IPC: D04B9/54
Filed: 1940-06-21
Abstract: 539,759. Knitting. INTERWOVEN STOCKING CO. June 21, 1940, Nos. 10716 and 10717. Convention dates, Oct. 5, 1939 and Feb. 17, 1940. [Class 74 (ii)] A top for a full fashioned stocking ds knitted upon a circular machine operating by reciprocation to form courses ending at each end in a longitudinal selvedge, an elastic thread being fed to selected needles in selected courses and floated vertically from course to course in which it contained. In the form described, the elastic thread E is laid in without knitting in courses c displaced by courses a, b, the longitudinally extending floats E<SP>1</SP> occuring alternatively at the two selvedges. To form an antiravelling edge, a ground or inelastic thread B is fed to all of the needles and the elastic thread E is fed so as to be interlaced in front of and below the latches of alternate needles, and in rear of the intervening needles. To facilitate transfer of the top to the needles of the straight-bar machine a course f of larger loops of the inelastic thread may be knitted. The tops are knitted upon a circular latch-needle machine in which needles are omitted from a portion G of the cylinder and in which the cylinder is reciprocated for approximately two and a quarter revolutions in each direction. Means for selecting the needles for fashioning is omitted. Feeders 16, 17 for suppling the inelastic thread B and elastic thread E are disposed at opposite sides of the cylinder, and selecting cams 14, 15 operative upon butts of jacks arranged below alternate needles in the two directions of movement of the cylinder, are arranged for radial movement from inoperative position to positions in which they engage either the long butts only or all the butts. Knitting cams are not provided in connection with the feeder 17, the elastic yarn being merely caught in the fabric without being knitted. Knitting cams 6, 7 are provided for action upon the needles at the feeder 16. Latchopening devices 18, 19 are arranged in front of the feeders 17, 16 to open the latches when beginning the first course of each top, and are controlled by pattern mechanism so as to be moved into operative position immediately before a top is to be set up on the bare needles, and to be withdrawn thereafter to inoperative position.
Patent GB-331826-A (GB)
Title: Improvements in motor vehicle jacks
IPC: B60S9/12
Filed: 1929-04-08
Abstract: 331,826. Bowman, G., and Graham, E. April 8, 1929. Stands or supports.- Fluid - pressure jacks are adapted to serve also as shock-absorbers. A cylindrical casing 9 enclosing a spring-held ram is pivoted at 25 to the frame 1. It is formed with a valved plunger 10 adapted to slide in a cylinder 13 bolted at 27 to axle 26, the joints with the cylinder being made fluid tight by means of washers 16, 17 and glands 14, 15. The ram carries a foot 18 and is extended against the action of a spring 23 by fluid entering the casing 9 at 21. In a modified form, the plunger 10 is not used and the middle cylinder is secured to the axle, while the outermost is pivoted to the frame. One of these devices is located near each wheel.
Patent GB-562543-A (GB)
Title: Motor sled
IPC: B62B13/18
Filed: 1942-08-04
Abstract: 562,543. Motor sledges, SCHMID, M. Aug. 4, 1942, No. 10858. Convention date, July 24, 1941. [Class 79 (iii)] A sledge 7 is propelled by a motor attachment 1 supported on two or more wheels 2 and coupled to the rear of the sledge by means permitting universal movement between the sledge and the motor attachment. When it is desired to run on ordinary road surfaces the sledge runners may be raised from the ground, the sledge then being supported on the wheels 2 and another pair of road wheels 41 lowered into contact with the ground. In the construction shown in Figs. 5 and 6, the motor attachment 1, having an engine 4 driving the wheels 2 through chain gear 6, is provided with an extension 28, 29 coupled to the sledge 7 by a bolt 31 passing through a vertical slot 32 in the sledge frame member 25 so that the motor attachment can pivot about the longitudinal axis A-A of the sledge and can move vertically to an extent limited by the slot. The sledge carries posts 26 and a plate 27 bearing by means of springs 30 on the extension 29, so that part of the weight of the sledge is borne by the wheels 2 increasing the adhesion of the latter. A pair of wheels 41. are mounted on a cranked axle 33, Fig. 8, rotatably carried by the sledge ; when a lever 40, Fig. 7, carrying a pinion 37 is rotated through 180 degrees, a rack 36 is raised or lowered and the axle 33 is rotated, thus raising or lowering the wheels 41 so that the front end of the sledge rests either on the front runners 35 or on the wheels 41. The rear runners 43 can also be raised clear of the ground, when desired, by means of a cable 44 or other mechanism. Modifications of the coupling means between the sledge and the motor attachment are described in which the two vehicles are connected by (1) a longitudinal pivot bolt such as 31, (2) a ball or a hinge joint, and (3) horizontal springs.
Patent GB-196182-A (GB)
Title: Improvements in fans, air-propellers or blowers
IPC: G10B3/02
Filed: 1922-04-20
Abstract: 196,182. Bannister, J. W. April 20, 1922. Paddle fans; multiple-way impellers.-A fan or blower for use with organs and the like has radial arms 6, upon a central hub 7, which carry two or more sets of blades 3, 4 extending laterally from the. arms in both directions. The sets of blades move in annular cavities a, b in the casings 2, 2<a> and are of such dimensions as approximately to fill the cross section of the cavities. An inlet opening is made in the centre of the casing 2<a> and this is in communication with the cavity k formed by the outer wall 11. The discharge may be taken from the opening m and subsidiary discharges may be taken from a conduit t placed over an opening s in the casing, level with the set of blades 3. The opening s may be closed when not in use. The casings may be of concrete, metal or earthenware. The blades may be fixed at right-angles to the arms 6 or they may be inclined at a smaller angle. The blades 3, 4 may be inclined in opposite directions. The driving motor is carried by an independent support.
Patent GB-542232-A (GB)
Title: Manufacture of hydrogen peroxide
IPC: C01B15/03
Filed: 1940-07-01
Abstract: 542,232. Hydrogen peroxide. BUFFALO ELECTRO-CHEMICAL CO., Inc. July 1, 1940, No. 11122. Convention date, June 30, 1939. [Classes 1 (ii) and 32] In the preparation of hydrogen peroxide by the electrolysis of potassium sulphate and sulphuric acid and the subsequent hydrolysis of the potassium persulphate produced, the acidified persulphate solution is concentrated to a point at which hydrolysis takes place rapidly, viz., when the solution contains from 750 grms. to 1,050 grms. sulphuric acid per litre, and the eliminated vapours are then passed in counter-current flow to the concentrated solution. A batch of acidified persulphate is introduced by a pipe 2 into an evaporating vessel 1 heated by a jacket 3 and concentrated until it reaches the strength indicated above. Additional persulphate is then introduced slowly in a continuous stream, the conditions being regulated so that the strength remains constant. The concentrated liquid flows slowly through the pipe 8 and down the packed tower 10 while the evolved hydrogen peroxide vapours pass through the heated conduit 6 to the centre of the packed tower up which steam is passing from the pipe 12. The vapours are drawn off under vacuum at 15 and condensed.
Patent GB-302853-A (GB)
Title: Wire-brush for cleaning chimneys, flue- and dust-channels and the like
IPC: F23J3/02
Filed: 1928-04-16
Abstract: 302,853. Walbr÷hl, W. April 16, 1928. Cleaning internally, non-rotary appliances for. -A brush for cleaning chimneys and like passages comprises a number of superposed elements, each consisting of a disc b provided with steel springs a which are secured to both sides of the disc. In the construction shown, the disc is provided with tongues c, c<1>, by the aid of which the springs are arranged tangentially with respect to an opening in the disc. Cardboard discs e, e<1>, one on each side of the disc b, are placed over the springs, which are clamped by bending over the tongues c, c'. The cardboard discs may be dispensed with. Instead of the disc b with two sets of tongues, two discs may be provided each with one set of tongues, the discs being arranged in contact so that one set of tongues project through the gaps between the tongues of the other set.
Patent GB-178324-A (GB)
Title: Artificially pointed hair
IPC: A46D9/00
Filed: 1921-04-18
Abstract: 178,324. Izawa, R. April 18, 1921. Roller apparatus. - An apparatus for artificially pointing animal hair and bristles comprises a roller 4 covered with abrasive material, a hinged frame 9 carrying the bristles 1 and a spring - pivoted member 12 carrying a pivoted pressing board 5 adjusted in position by a screw 18. The bristles are held in the frame 9 between bars 3, 3' by means of screw bolts. As the lower layers become pointed they may be withdrawn from contact with the abrasive surface of the roller 4 and held between the bar 3<1> and a rectangular spring-pressed frame 17. The frame 9 is connected by a chain 19 to a bell-crank lever 20 so that, when the frame is raised, the upper end of the lever prevents the pressing board 5 from touching the abrasive surface of the roller.
Patent GB-125458-A (GB)
Title: Improvements in or relating to Means or Apparatus for Adjusting or Balancing the Movement of the Elevators or other Controlling Surfaces of Aeroplanes.
IPC: B64C13/00
Filed: 1916-08-10
Abstract: 125,458. Btackburn Aeroplane & Motor Co., Blackburn, R., Copley, J. W., and Bumpus, F. A. Aug. 10, 1916. Steering.-A device for adjusting and maintaining in their adjusted position the control surfaces of an aeroplane or seaplane, but leaving the usual controls available, comprises a windlass enclosed in a casing mounted on the fuselage, the cover of the casing having holes or notches which are engaged by a projection on the pivoted handle of the windlass. Fig. 1 shows a plate e secured to the longeron a and side strut c of the fuselage, the plate having flanges g engaging a hollow removable cover h provided with holes l in its outer end. A drum s, to which are secured cords r connected to the control surfaces, is fixed to a spindle j having one or more lugs outside the casing to take a lever m provided with a handle o. A flanged projection p is adapted to engage the holes l to keep the lever in its adjusted position, and a stop m' on the lever limits the movement of the lever in the direction of the arrow. Elastic links in the cords r compensate for sudden stresses on the control surfaces, and enable the pilot to use the ordinary control levers. A modification is described in which the side walls of the casing are integral with the plate e and a flanged end plate is used to complete the casing.
Patent GB-1495345-A (GB)
Title: Nozzle for a metallurgical converter melting furnace or the like melt container
IPC: F27B14/08
Filed: 1975-03-19
Abstract: 1495345 Nozzle for a metallurgical converter or melting furnace ASEA AB 19 March 1975 [20 March 1974] 11375/75 Heading F4B A nozzle (for supplying reaction agents or stirring gas through the wall or bottom of a metallurgical converter, melting furnace or like melt container, e.g. an induction furnace) comprises a metallic rear nozzle part 29, 31; a wedgeshaped or frusto-conical front nozzle part 19 made of refractory material (such as brick or sintered refractory compound); an intermediate nozzle part 22 (e.g. of sintered material based on Al 2 O 3  or MgO); a frusto-conical metal lining 21 surrounding the intermediate part; a feed channel 20 through which gas and reaction agents can be blown; and liquid cooling means 24 and 37 provided respectively in a metallic body 23 surrounding the frusto-conical metal lining 21 and in the rear nozzle part. During use of the nozzle, the cooling means serve (a) to prevent the nozzle parts from sintering together completely, and (b) to prevent any molten metal which may enter the channel 20 from escaping. Such molten metal is cooled and solidifies in the nozzle. As shown, the nozzle is located in a frusto-conical block 18 in a converter wall 17. Rammed compound is provided at 28. The nozzle is secured to the converter wall 17 by bolts (not shown) which pass through a flange 26. The channel 20 may be sealed with refractory material which is bored out when gas is to be supplied through the channel.