baber/WOPTO huggingface dataset:
Patent GB-879539-A (GB)
Title: Improvements in or relating to the production of hydrogen peroxide
Inventor: HOLMES WILLIAM RAYMOND
IPC: C01B15/023
Filed: 1958-01-10
Abstract: In a cyclic process for the production of hydrogen peroxide by successive oxidation and reduction of an anthraquinone in an organic solvent, wherein the hydrogen peroxide product is extracted from the organic phase with water, the extraction is carried out in a column with the aqueous and organic phases flowing countercurrently and the organic solution droplets present in the column are coalesced by contact with solid polyethylene. polypropylene, polytetrafluoethylene or polyvinyl chloride (which are preferentially wetted by the organic phase) in the form of a perforated plate or grid as chips or rings. In a plate column, sufficient difference between the plate and the polymeric solid should be given to allow for the presence of a continuous organic phase above or below the plate.  After washing in such a column the organic phase is passed to a hydrogenator forming part of the cycle.  Specification 465,070 is referred to.
Patent GB-157217-A (GB)
Title: Improvements in roofing material for railway vehicles and the like
IPC: B61D39/00
Filed: 1921-01-08
Abstract: 157,217. Rogler, M. June 24. 1919, [Convention date]. Fabrics with multiple superposed coatings; coating With adhesive and powdered materials; compound fabrics.-Wire fabric is impregnated with an " elastic protective filling mass." 'When this is set it is coated with a hard elastic " protective material." Ground cork, wood meal, or other suitable granular material may be spread on the coatings while sticky. The wire fabric may be first pressed between sheets of canvas, cotton fabric, paper or the like, such sheets being first impregnated with tar, varnish or the like. The filling mass may be composed of asphalt, ground asbestos, coal tar and red oxide of iron. The coating composition may consist of linseed oil, red oxide of iron, and a small proportion of paraffin. Several coatings are given of a hardness which increases from the interior outwardly. Increased hardness is obtained by increasing the proportion of paraffin.
Patent GB-778281-A (GB)
Title: A hydro-pneumatic shock-absorber, particularly for motor cars
IPC: F16F9/06
Filed: 1953-01-14
Abstract: 778,281. Hydraulic shock absorbers. STURARI, C. Jan. 14, 1953 [Jan. 15, 1952 ; April 3, 1952], No. 1094/53. Class 108(3). An hydraulic shock absorber comprises an annular reservoir 76 defined by an inner working cylinder 16 and an outer cylinder 55, conduit means 78, 75, 82, 84, 85 connecting the reservoir 76 and one end of the cylinder 55, end members 12, 54 closing the cylinder 55 and each holding in a respective cushion member 74, 52. In Fig. 2, closure members 50, 68, for each end of the working cylinder 16, are secured in position by the clamping action of the end members 12, 54, of the cylinder 55. The cushion members 52 and 74 have the effect of cushioning a sudden axial or lateral load applied to the shock absorber. Liquid which leaks past the closure 50, drains via passages 64 to an annular space within the reservoir 76 defined by a cylindrical diaphragm 66. The reservoir 76 is connected with the lower chamber 19 of the two working cylinder chambers 18, 19, defined by the piston 15, by orifices 78 in the diaphragm 66, passages 75, and a base valve 70. The base valve 70 is by-passed by a valve 80, the spring-loading of which is adjustable at 88. Flow between chambers 18 and 19 is provided by ports 20 controlled by a valve 22, and an axial passage 24, 26, controlled by a valve 32. The valve 32 is by-passed by a metering passage 37 in a rod 34. The rod 34 is axially adjustable from outside the shock absorber by rotation of a plug 46, to vary the effect of the metering passage 37. The valve 32 is loaded by a spring 35. A stronger spring 38 acts on a stop 36 rigid with an extension 33 of the rod 34. The shock absorber is charged with liquid through a valve 95 to a level determined by a tube 100 in the reservoir 76. Air is charged via a valve 104. The valve 22 may also be adjustable. In the modified construction shown in Fig. 4, the valve 80 has a central by-pass passage which is controlled by a metering pin 110, externally adjustable at 88. The passage 37 is replaced by a profiled section 37a of the rod 34. The resilient annular member 74 has a conical seating for the cylinder closure 68, and the member 52 has shoulders which cushion lateral shock between the piston rod and outer casing of the shock absorber. This construction may be used in a vertical or horizontal position. The rod 34 in either construction may be adjusted so as to render the shock absorber rigid against compression load. Specification 778,282 is referred to.
Patent GB-1213586-A (GB)
Title: Improvements in or relating to runner hubs with controllable pitch blades
IPC: F03B3/14
Filed: 1968-01-09
Abstract: 1,213,586. Variable pitch propellers. KARLSTADS MEKANISKA WERKSTAD A.B. 9 Jan., 1968 [22 March, 1967], No. 1181/68. Heading B7V. [Also in Division F1] An hydraulic piston servomotor is located in the runner hub 1 of a ship's propeller and provides setting forces to turn controllable pitch blades 3 mounted in the runner hub. The servomotor comprises a double piston 31 forming a rigid mechanical unit of two piston units 33, 43 and which is axially movable with respect to two separate cylinders 37, 49 positioned one on each side of the double piston and immovably arranged in the runner hub. The cylinder units together with the piston units form two working chambers 41, 51 for pressure fluid to actuate the double piston the central part of which, seen crosswise of its axial direction, is provided with power transmitting bearings for coupling elements of known design to transmit the movement of the double piston to the runner blades. In the embodiment shown double piston 31 is provided with radially protruding arms 67, one for each propeller blade, on which the power transmitting bearings in the form of sliding blocks 71 coupled to crank pins 15 are arranged.
Patent GB-1363946-A (GB)
Title: Manufacture of mails
IPC: B21G3/16
Filed: 1972-01-11
Abstract: 1363946 Drawing; making nails SIGNODE CORP 11 Jan 1972 [28 Jan 1971] 1194/72 Headings B3P and B3A  Apparatus for treating distensions in the elongate shank of a.pointed nail comprises a support assembly including a base-plate 12, a slide assembly 58 supported for movement with respect to the support assembly, means for reciprocating the slide assembly with respect to the support assembly, a pair of drawing dies 30 supported for oscillatable movement with respect to the slide assembly, means for producing said oscillatable movement between an open position and a closed nail contacting position, for maintaining the closed position and moving the dies longitudinally of the axis of a nail shank. The dies having grooves 42 are mounted on die blocks 32 which are oscillatable about a pivot assembly 48. Movement inwards of the dies is caused by movement of drive link 70 to move end plates 60 and side plates 62 downwardly with respect to die blocks 32 so that pivot links 84 move the blocks about pivot assembly 48. Further movement of the drive link causes downward movement of the die blocks relative to the nail which is fixedly held. The die blocks are biased to an upward open position.
Patent GB-488719-A (GB)
Title: Improvements in or relating to shock absorbers or the like damping means
IPC: B60G17/015
Filed: 1937-01-15
Abstract: 488,719. Fluid - pressure shock - absorbers; preventing lateral canting of vehicles. ARMSTRONG, F. G. G. Jan. 15, 1937, No. 1224. [Classes 108 (ii) and 108 (iii)] In inertia control means for a shock-absorber the setting element of the or each shockabsorber is connected to a piston displaceable in a fluid pressure cylinder, the variation in pressure in which is controlled by one or more pipe connections to a plug valve connected to the pendulum and making connection between said cylinder and a source of pressure difference. The control lever 22 is connected to a piston 20 in a cylinder 19 connected to the vacuum or lubricating oil pressure system through pipe 23 by the movement of a rotary valve 12 operated by a pendulum 13. The opening 15 in the plug may be graduated, the opening varying with the displacement of the pendulum. Bleed valves 24 may be provided to release the pressure in the system when the pendulum has returned to its normal position. Each shock-absorber may be controlled by a separate pendulum, or a pair of pendulums may be common to a pair of shock-absorbers on the same side of the vehicle, but at the front and rear ends thereof and adapted to swing through a vertical plane extending laterally of the vehicle.
Patent GB-1292422-A (GB)
Title: Process for the production of silicon carbide whiskers
IPC: C30B25/12
Filed: 1971-01-11
Abstract: 1292422 Silicon carbide whiskers LONZA Ltd 11 Jan 1971 [14 May 1970] 1239/71 Heading C1A Silicon carbide whiskers are grown at elevated temperature from a gaseous phase containing the whisker components on a substrate bearing a layer comprising at least one metal and/or metal compound as a crystal growth promoter, carbon and a lacquer and/or tar. The crystalgrowth promoter may be metallic Fe, Ni, Mn or Cr; iron chloride, sulphate or carbonate or oxides of Fe, Ni or Mn. The carbon may be in the form of active charcoal and the lacquer may be alkyd resin, polyvinyl acetate, nitro-cellulose (e.g. Zapon), polyester or an oil-based lacquer. The crystal growth-promoting material and carbon may be in a ratio of 1 : 0À5 to 1 : 2 and the layer may be applied in such quantities as to give 0À1-10 mg. of crystal growth promoting material per cm.<SP>2</SP> of substrate. The substrate may be of carbon, corundum, mullite, ceramic material or graphite. The reaction temperature may be 1100-1550‹ C. In an example, whiskers of 2 Á diameter are obtained after 8 hours at 1400-1450‹ C. from Si and active charcoal using a reaction gas of 72% H 2 , 20% N 2  and 8% CH 4 .
Patent GB-580878-A (GB)
Title: Booster brake
IPC: F16D55/46
Filed: 1945-01-16
Abstract: 580,878. Brakes. WINGFOOT CORPORATION. Jan. 16, 1945, No. 1315. Convention date, April 26, 1944. [Class 103 (i)] In a disc brake, an operator - controlled hydraulic brake is engaged with the disc and is entrained thereby to a limited extent, this movement being used to generate hydraulic pressure which is used in a number of cylinders, forming the main braking- unit, which apply a friction member or members to the side or sides of the disc. As shown, the brake disc 18 is keyed to the wheel 10 by keys 16 and the main braking effect is obtained from the fluidpressure cylinder assembly 104 which is energised by a master cylinder 82 having a piston 78 secured to a lever 26 which is operated by the entrainment of a subsidiary brake unit 20 carried by the lever. The unit 20 comprises opposed friction pads 72, one of whch is carried by a support 70 in contact with the piston 48. The unit 20 is controlled by a manually-operated master cylinder connected thereto by conduits 160, 164, and bending of the lever 26 is prevented by keys 34 engaging a groove 36 in the stationary guide 38. The piston 78 has a lost-motion connection 86 with the rod 76 to compensate for fluid expansion, a spring 90 being interposed between the lever 26 and the piston. The booster pressure, which is slightly lower than the manual master cylinder pressure, is transmitted by the conduit 94 to the middle cylinder 102, which is connected to the other cylinders 102 by passage 126, make-up of leakage loss in the cylinders 102 being effected, while the brake is inoperative, from the conduits 160, 164 through a non-return valve 166. The cylinders 102 have common brake shoes 106, 108 on opposite sides of the disc 18, the shoe 106 containing a brake-lining 116 reinforced by a plate 118 and having button-shaped bosses 120 passing through the plate and fitting into sockets 122 in the shoe. The shoe 108 carries the cylinders 102, the lining, 152 having button-shaped bosses 154 inserted in cavities in an arcuate plate 158 against which the pistons 130 abut. In a modification, the booster action is effective with both directions of rotation of the wheel. The unit 20 is arranged on a lever which swings about the wheel axle and carries symmetrical cams which actuate one of two booster cylinders according to the direction of rotation. The booster pressure is applied to the main brake cylinders, which have covers deeply recessed to conform with the pistons, the covers being held in position each by a spring ring snapped into a groove in the cylinder wall. The open end of each cylinder is sealed by a packing ring in a groove in the cylinder wall. The Specification as open to inspection under Sect. 91 states the invention is also adapted for operation with a mechanically-operated booster brake unit. This subject matter does not appear in the Specification as accepted.
Patent GB-210077-A (GB)
Title: Portfolio
IPC: A45C15/02
Filed: 1924-01-17
Abstract: 210,077. Bruck, G. Jan. 20, 1923, [Convention date]. No Patent granted (Sealing fee not paid). Writing tablets. - A hand satchel for documents has attached to it on the outside an arrangement on which notes may be written consisting of either (a) a celluloid, bone, or other washable plate 1, Fig. 1, riveted in place, or (b) a plate 1, Fig. 5, secured behind an opening in the wall and covered by a flap 5, or (c) a plate 1, Fig. 6, having a cover 5 with a pocket in which a cleaning cloth is held. Reference has been directed by the Comptroller to Specifications 12472/94 and 4943/11.
Patent GB-365772-A (GB)
Title: Improvements in and relating to regulating apparatus for hydraulic presses
IPC: B30B15/16
Filed: 1931-01-15
Abstract: 365,772. Hydraulic presses. ILJIN, S. S., 1/19, Lobkowsky per, Moscow, U.S.S.R. Jan. 15, 1931, No. 1428. [Class 69 (ii).] In a hydraulic press of the kind supplied from low and high pressure accumulators in succession under the control of an automatically-operated valve, mechanically-operated means are provided whereby the high pressure liquid is intermittently admitted to the press cylinder during a single operation of the press. The low pressure supply line contains a valve 7 with small passage 8, and a non-return valve 9, and the'high pressure supply is admitted to the press cylinder, when the pressure in the latter is sufficient to open a loaded valve 25. The high pressure supply line contains valves 15, 18 opened alternately by mechanical means. When the former is open, liquid raises a valve 17 and compresses gas contained in a chamber 28; when the latter is open, the compressed gas forces the liquid through a narrow port 20 and the pipe 21 to the press'cylinder.
Patent GB-720555-A (GB)
Title: Improvements in the manufacture of electrical insulating material in sheet form analogous to paper
Inventor: VINCENT RUSSELL SWALE
IPC: H01B3/44
Filed: 1952-01-18
Abstract: 720,555. Electric insulation paper. BRITISH DIELECTRIC RESEARCH, Ltd. Jan. 16, 1953 [Jan. 18, 1952], No. 1511/52. Class 96. Thin, porous electric insulation paper, e.g. for cables or capacitors, contains, e.g., 1/3 + ¢ or more of its weight of polystyrene particles, most of which have lengths between 10 and 100 microns, and which may be prepared by disintegrating polystyrene foil, and mixing it with paper pulp, together with a wetting agent. The paper may be calendered, e.g. down to 25 microns in thickness, and impregnated with a mixture of oil and polyisobutylene.
Patent GB-1379600-A (GB)
Title: Meat-like protein product
IPC: A23J3/22
Filed: 1971-01-12
Abstract: 1379600 Meat-like foods PEDIGREE PET FOODS Ltd 4 Jan 1972 [12 Jan 1971] 1514/71 Heading A2B A meat-like protein food, suitable for human or animal consumption, comprises generally oriented artificial fibres comprising edible protein, bonded into bundles by a heat coagulated edible binding agent each bundle having at least a surface layer substantially resistant to hot moist processing or cooking, the bundles being compacted and bound together in a similarly oriented manner, the cohesion of the bundles being weaker than the cohesion of the fibres. The same heat coagulable binder may be employed for the fibres and the bundles. The product may include flavouring, colouring, especially blood products, and comminuted natural meat.
Patent GB-1484811-A (GB)
Title: Process for the thermal splitting of metal sulphates
IPC: C01B17/58
Filed: 1975-01-14
Abstract: 1484811 Metal oxides and sulphur dioxide from sulphates METALLGESELLSCHAFT AG 14 Jan 1975 [17 Jan 1974] 1594/75 Heading C1A Metal sulphates are split into the metal oxide and sulphur dioxide in a fluidized bed of metal oxide which is kept at a temperature above the splitting temperature of the sulphate but below the sinter temperature of the metal oxide produced, the sulphate is supplied in a molten, solution, solid or suspended form below the surface of the fluidized bed which has a height when stationary of from 300 to 800 mm. and wherein the speed of the fluidizing gas with respect to the cross-section of the reactor is adjusted to a value W G  where where W G  is the speed of the gas in metres per second and # is the density of the metal oxide of the bed in grams per c.c. The sulphate may be present in a salt-containing waste acid; iron and aluminium sulphates in sulphuric acid are exemplified. The sulphur dioxide produced may be reconverted into sulphuric acid free from salt contaminants. Mention is made of the treatment of sulphates of nickel, cobalt, magnesium, manganese and chromium; the treatment of mixtures of sulphates is stated as producing mixed oxides.
Patent GB-1144733-A (GB)
Title: Recoil type of gasoline engine starter
IPC: F02N3/02
Filed: 1967-01-12
Abstract: 1,144,733. Pull cord starters. JACOBSEN MFG. CO. Jan.12, 1967 [Oct. 12, 1966], No.1664/67. Heading F1K. A full cord starter for use with an engine having fan blades 14 connected to the engine shaft 13 for rotation therewith, comprises a pulley 21 mounted for rotation relative to the fan blades, a rope 24 wound on the pulley, a recoil spring 29 for rewinding the rope on to the pulley, and a pawl 32, pivotally mounted on the pulley and extendable therefrom into abutment with the fan blades to rotatably drive the fan blades in starting the engine. A lever 42 is connected to the pawl in a lost motion connection with respect to the initial rotation of the pulley, the lever being subsequently rotatable with the pulley, and the pawl being retractable upon rope rewind rotation of the pulley. When the engine is running and the fan blades 14 are rotating faster than the starting speed of rotation of the pulley 21, the blade tips 52 will abut an oblique surface of the pawl and cause the pawl to pivot to its retracted position. The pulley has openings 28 therethrough for axial flow of cooling air to the engine.
Patent GB-535767-A (GB)
Title: Improvements in or relating to method of controlling flow in an electron stream and to electron discharge apparatus
IPC: H01J25/24
Filed: 1939-08-09
Abstract: 535,767. Electron oscillators and circuits therefor. STEVENS, A. H. (Leland Stanford Junior University, Board of Trustees of.). Aug. 9, 1939, No. 1675/41. Divided out of 534,144. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 3, 1940]. [Classes 39 (i) and 40 (v)] Electron discharge apparatus comprises means for projecting an electron stream through an oscillating electric field whereby cyclic variations in velocity are imparted to the electrons and means for reflecting the stream so that it re-enters the field to produce an interchange of energy between the field and the grouped electrons. The Figure shows a reflecting plate 52 arranged in a resonant member 1<SP>1</SP>. A stable electron beam current is obtained from a plate 61 heated by electron bombardment, the rectifier 64 supplying the accelerating energy and a ballast resistance 65 stabilizing the energy supply. Compensation arrangements for supply voltage or output current variations may be provided as described in Specification 534,144. Specifications 517,264, 530,785, 545,146 and 548,725 also are referred to.
Patent GB-196365-A (GB)
Title: Improvements in signs or advertisements
IPC: G09F13/16
Filed: 1922-01-19
Abstract: 196,365. Beville, W. J. Jan. 19, 1922. Changing by alteration in view-point of observer.-A sign, advertisement, facia, tablet or the like viewed by reflected light comprises in one form, Fig. 1, a rear reflector c of metal or silvered or gilded glass or the like, embossed with pyramidal or other protuberances, and a transparent coloured stencil b, so that the letters &c. are seen in the natural colour of the reflector in a coloured surround. Front and rear sheets a of plain glass, celluloid, or gelatine and a frame c may be added. The protuberances may have their apexes flattened, rounded, or removed. In large signs, the facets of the protuberances may be irregular or fluted, and each series of facets may be differently coloured, so that different colour effects may be seen from different angles. In a modification, the stencil is of embossed metal coated with translucent paint or oxidized or otherwise darkened. In a further form, the sign comprises a rear reflector such as c, a transparent coloured sheet of celluloid &c., opaque letters of embossed reflecting material, and front and rear glasses; or the opaque letters may be replaced by two stencils with openings of different sizes, one coloured and the other having a bright surface to show a bright border to the lettering &c. The Provisional Specifications state also that the cut-out parts of the stencil may be covered by larger letters of gelatine &c., which may have circular holes; a stencil may be secured to a single sheet of glass by liquid gelatine; the reflector may be at a distance behind the front member and angularly adjustable; and the sign may be illuminated.
Patent GB-733685-A (GB)
Title: Device for delivering a predetermined amount of fluid through a fluid meter
IPC: G01F15/07
Filed: 1952-01-21
Abstract: 733,685. Counting-apparatus. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Jan. 21, 1952 [Feb. 16, 1951], No. 1705/52. Class 106 (1). A device for delivering a predetermined amount of fluid through a fluid meter comprises a wheel 1, Fig. 2, adapted to be driven from the meter, frictionally mounted on the spindle 2 of an indicating needle 17 which moves relatively to a dial 3, a cam support 5 keyed on the spindle and located in a notch 6a, Fig. 3, in a cam 6 pivotally mounted concentrically on the spindle, so that the relative rotation of the cam is limited by the support, electric - contact - carrying spring blades 10, 11, and a spring arm 12 fixed on a support 13 and carrying a roller 14 in engagement with the cam, the arrangement being such that on the cam being driven to return to a predetermined position in the direction of rotation it allows operation, through the spring arm, of the contact blades to cut off the supply of fluid. In the operation of the device shown, the movable dial member 3 is turned in the reverse direction to the calibrations until the numeral corresponding to the predetermined amount is opposite a marking arrow (not shown), and is-then returned to the initial position. A stop 4 on the member 3 sets the needle 17 so that after the required predetermined supply the needle reaches zero; the roller 14 is then positioned on the edge of notch 6a and causes the cam 6 to swing abruptly relative to the support 5, the arm 12 moving downwards (Fig. 3), until the roller abuts the support. A button 15 on the arm controls blade 10 so as to open the electric contacts between 10 and 11 and close contacts between 10 and a rigid blade 9, thus actuating devices for cutting off the supply and other, e.g. warning, devices (not shown). The wheel 1 also drives a totalizer through gearing 2b<SP>1</SP>, 2a<SP>1</SP>. The member 3 may be operated manually or automatically.