baber/WOPTO huggingface dataset:
Patent GB-1128884-A (GB)
Title: Improvements in an image-forming apparatus
IPC: G02B27/28
Filed: 1967-02-23
Abstract: 1,128,884. Optical apparatus. FARRAND OPTICAL CO. Inc. Feb. 23, 1967 [Feb. 23, 1966], No.8618/67. Heading G2J. Image-forming apparatus comprises a first polarizer 4, a curved beam-splitting mirror 6 having its concave surface remote from the polarizer 4, a first quarter-wave plate 8 having its axes at 45 degrees to the plane of polarization of the polarizer 4, a plane beam-splitting mirror 10, a second quarter wave plate 12 having its axes oriented with respect to the corresponding axes of the first quarter-wave plate 8 at angles equal to a first integral multiple of 90 degrees, and an analyser 14 having its plane of polarisation oriented with respect to the plane of polarisation of the polariser 4 at an angle equal to a second integral multiple of 90 degrees, one of said multiples being even and the other being odd, An observer will only see that part of the light passing through the system which has been reflected at the mirror 10, and then the concave mirror 6, the light passing directly through the mirror 10 being stopped by the analyser 14. The members 8,10,12,14 are stacked together on the mirror 6. The object to be viewed or a real image thereof is positioned on the convex side of the mirror so that it is imaged by the mirror 10 on the focal surface of the mirror 6. In this way, the object is imaged by the mirror 6 at infinity. By means of suitable optical systems arranged before the above apparatus a plurality of objects may be viewed in superposition.
Patent GB-1037313-A (GB)
Title: Improvements in or relating to electrical signal-generating devices
IPC: H01H51/34
Filed: 1963-03-05
Abstract: 1,037,313. Reciprocating generators. FORCE CONTROLS CO. March 5, 1963 [March 5, 1962], No. 8652/63. Heading H2A. A transducer 10, Fig. 2, comprising a pair of coils 18, Fig. 5 (not shown), on polepieces 16 in contact with the pole faces of a permanent magnet 20, produces a pulse each time an armature 48 reaches, as a consequence of force or motion applied to push button 12, a position whereat the attractive force of magnet 20 overcomes the control springs or vice versa, the armature being thrust away on removal of a force from the button by the thrust of a spring 66 and the pull of a spring 62. The arrangement which may be mounted in an aperture in a plate 92 is provided with a micrometer adjusting sleeve 86 whereby the whole sleeve 14 may be positioned relative to the front face of the plate. A transistor trigger circuit for controlling a solenoid operated valve, or an ignition circuit, is described with reference to Fig. 7 (not shown, and an alternative construction including three springs and in which the position of the element 10 is adjustable by a screw thread on its exterior is described with reference to Fig. 6 (not shown).
Patent GB-989218-A (GB)
Title: Reservoirs for the storage of liquefied gases
Inventor: SOESAN JOSEPH MAURICE
IPC: F17C3/00
Filed: 1964-03-02
Abstract: 989,218. Storing liquefied gases. CONCH INTERNATIONAL METHANE Ltd. March 2, 1964, No. 8700/64. Heading F4P. An underground rock cavern 3 in which is stored liquefied gas e.g. natural methane has a thermally insulated false roof 12 between the normal liquid level and the roof proper 13 from which extends a vertical shaft 4 and the vapour space between roofs 12, 13 is heated so as to maintain the temperature between minus and plus 20‹ C. thereby minimizing roof fracture due to temperature fluctuations. The roof 12 is of sheet aluminium or stainless steel covered with fibre glass, foamed polyvinyl chloride or foamed polyurethane and the vapour space is heated by vapour of the gas being stored. A blower 17 draws from a pipe 22 in the shaft 4 and delivers through a heater 18 into a pipe 19 and through orifices 21 in a header 20. Liquefied gas is discharged by a pump 10 through a pipe 9. In a modification the heated vapour is circulated in a closed system.
Patent GB-267723-A (GB)
Title: Improvements in furnaces
IPC: F23L9/00
Filed: 1926-04-01
Abstract: 267,723. Ljungstr÷m, B. April 1, 1926. Air, supplying; crowns and roofs; furnace fronts.-Secondary air is introduced into a furnace in a lateral direction and the shape of the furnace chamber and the place or places for supplying the air are so arranged with relation to each other that the air is conducted after entering the furnace in two or more whirl paths, adjacent whirls preferably having opposite directions of rotation. The air, which may be under pressure and may be preheated, may be introduced in a double front or other fore part of the furnace arch, at the rear of the furnace, or beyond the furnace proper, for instance beyond the fire bridge. In the form shown in Fig. 1, air enters channels 14, passes through curved channels 20 formed between the side walls of a double front 12 and partitions 13 and curved plates 19, then through passages 22, controlled by swingable flaps 21, to the spaces inside the curved plates 19 which impart whirling motions in the directions indicated by the arrows. In the form shown in, Fig. 3, air enters channels 14, passes along an annular channel 23, through an opening 30, rearwardly along a chamber 27, and then through openings in partitions 25 into the rear ends of the chambers 29, the chambers 27, 29 being closed at both ends. The air then passes forwardly and peripherally and into the furnace chamber through openings 32 controlled by adjustable flaps 33, the whirling motions set up being maintained by the downwardly curved portions of arched guide plates 26. The plate 19, Fig. 1, and the plate 26, Fig. 3, are cooled by the passage of the air along their outer surfaces, and the guide plates and other parts coming into direct contact with the hot furnace gases are preferably made of fire-proof material. In the form shown in Fig. 5, a brick furnace has a double arched roof 42 the air entering on both sides of the grate 39 through openings 43 controlled by flaps 44. Alternatively, the air may enter through the top of the furnace between the two arched portions and the inflow be controlled by two oppositely swingable flaps.
Patent GB-558042-A (GB)
Title: Improvements relating to crates or racks for bottles or other articles
IPC: B65D25/04
Filed: 1942-06-29
Abstract: 558,042. Crates or racks for bottles &c. TYRE PRODUCTS, Ltd., and HIGHFIELD, G. N. June 29, 1942, No. 8928. [Class 18] [Also in Group XXIII] Crates or racks for bottles, jars &c. are built up from strips of canvas, rubber-canvas belting, discarded pneumatic tyre &c. a threaded on wires b united at their free ends by sleeves c to form four walls with transverse and longitudinal partitions extending upwards from the bottom for part of the height. Metal strips h. i strengthen the container at the bottom and at the top of the set of partitions; and the bottom is closed by a canvas-rubber or other sheet k. Hand holes p may be formed. In a modified form there are metal strips only at the top and the bottom is constituted only by intersecting strips so that the crate can collapse diagonally.
Patent GB-941911-A (GB)
Title: Improvements in suspended ceilings
IPC: E04B9/04
Filed: 1960-03-15
Abstract: 941,911. Suspended ceilings. H. J. SCHMITT. March 15, 1960 [March 19, 1959; June 4, 1959; Aug. 7, 1959], No. 9066/60. Heading E1V. A suspended ceiling comprises tray-like elements the adjacent side walls of which are connected together by connecting members such as screws 3, some at least of the elements being suspended directly from a supporting structure by hangers or wires 5 connected to the walls. The elements suspended directly from the supporting structure may be arranged in rows spaced apart from each other, Fig. 4 (not shown) the spaces between the rows being filled by elements supported by said elements suspended directly from the structure.
Patent GB-550702-A (GB)
Title: Improvements in or relating to rubber-soled footwear
IPC: B29D35/06
Filed: 1941-07-17
Abstract: 550,702. Rubber soled footwear. FABBRICHE RIUNITE INDUSTRIA GOMMA TORINO W. MARTINY INDUSTRIA GOMMA SPIGA-SABITLIFE. July 17, 1941, No. 9071. Convention date, July 17, 1940. Addition to 543,053. [Class 17 (ii)] The rubber sole with bevelled edge together with the wedge-shaped strip described in the parent Specification is, according to the present invention, applied to an unvulcanized sole already on the shoe, the whole sole assembly then being vulcanized.
Patent GB-928013-A (GB)
Title: Apparatus for controlling the admission and discharge of a pressure medium into and from a servomotor
Inventor: DIRLAM KLAUS
IPC: F15B13/04
Filed: 1962-03-09
Abstract: 928,013. Valves. ZENTRALE ENTWICKLUNG UND KONSTRUKTION FUR DEN KRAFTFAHRZEUGBAU VEB. March 9, 1962, No. 9126/62. Class 135. [Also in Group XXIV] A valve controlling engine suction (Fig. 2, not shown), or, as shown, pressure air or liquid energization and venting of a motor vehicle clutch servomotor comprises a bored control element 3 leftwardly moved, against a spring 6, by energization of a solenoid 5 to close its bore against, and lift, a spring-loaded spherical or conical closure member 7 to connect a servomotor union 2 to an actuating medium union 10, and, on de-energization of the solenoid, rightwardly moved, to permit the member 7 to close, and to connect, via its opened bore, the servomotor duct 2 to a bore 13 which is connected to atmosphere, for initial venting, through a spring-loaded valve 15 and, for final venting, through a throttling valve 19 responsive to carburetter throttle valve position. The valve 15 comprises a closure member arranged between the bore 13 and a bore 32 leading to atmosphere and acted on by a spring 16 reacting on an adjustable and lockable screw abutment 17. The throttling valve 19 comprises a conical member axially movable against a spring 23, to vary an aperture between the bore 13 and a bore 22 leading to atmosphere, by a face cam 24 carried in an axially adjustable and lockable screwed bush 27 and rotatable by a lever 30 circumferentially adjustable with respect to the cam 24 and connected by a ball 29 and rod to the carburetter throttle valve lever. The solenoid 5 may be actuated by gear shift means. Servomotor venting, for clutch engagement, on de-energization of the solenoid 5, is effected initially through the valve 15, permitting rapid clutch plate approach before it closes, and finally through the throttling valve 19 permitting clutch plate engagement at a speed proportional to carburetter throttle valve opening. Clutch engagement speed may be adapted to desired operating conditions by axial adjustment of the bush 27 and relative circumferential adjustment of the lever 30 and the cam 24.
Patent GB-837706-A (GB)
Title: Improvements relating to the catalytic reforming of hydrocarbons
IPC: B01J23/86
Filed: 1957-03-20
Abstract: Heat is supplied to an endothermic catalytic reaction employing a fluidized or moving bed of catalyst by including in the catalyst a metal oxide which is reduced with evolution of heat under reaction conditions and using excess oxygen during regeneration to reoxidize reduced metal oxide.  The process described is one of dehydrogenation and dehydrocyclization of non-aromatic hydrocarbons (see Group IV (b)) at a temperature of 800-1300 DEG  F. employing a chromium oxide-alumina catalyst, the metal oxide added being cupric oxide in an amount of 5-25% by weight of the total catalyst.  The catalyst may be promoted with an oxide of a rare earth, bismuth, boron or germanium with or without an alkali metal or a spinal such as cobalt chromite, copper chromite, zinc titanate or iron chromite.ALSO:In an endothermic process for the catalytic dehydrogenation or dehydrocyclization including reforming of hydrocarbon feedstocks containing non-aromatic hydrocarbons employing a fluidized or moving catalyst bed and a reaction temperature of 800-1300 DEG  F., heat is supplied by including in the catalyst bed a metal oxide having no appreciable catalytic activity but which is reduced with evolution of heat under the reaction conditions, continuously or intermittently withdrawing catalyst and treating it with oxygen in excess of that required to burn off carbonaceous deposits so that reduced metal oxide is reoxidized and returning regenerated catalyst to the reaction zone.  The metal oxide may form an integral part of the catalyst or may be mixed with catalyst particles.  Cupric oxide is preferred and may be present in an amount of 5-25% by weight of the total catalyst.  This process is preferably applied to the catalytic reforming of petroleum hydrocarbons such as a straight-run light gasoline or a platinum reformate or fraction thereof in the presence of a chromium oxide-alumina catalyst at 840-1075 DEG  F., less than 50 p.s.i.g. (including subatmospheric pressures) and a space velocity of 0.1-1.0 vol./vol./hr. without added hydrogen, whether recycle or extraneous.  The catalyst may be promoted by an oxide of a rare earth, bismuth, boron or germanium with or without an alkali metal, or a spinel such as cobalt chromite, copper chromite, zinc titanate or iron chromite.
Patent GB-1466693-A (GB)
Title: Method for separating solid particles
IPC: B01D39/10
Filed: 1974-02-28
Abstract: 1466693 Filtering FUJI PHOTO FILM CO Ltd 28 Feb 1974 [6 March 1973] 9194/74 Headings B1D and BIT Liquid or gas containing solid particles is filtered by passage between parallel members 8, which define gaps between them which narrow in the direction of filtering flow, which enables particles of various shapes having one dimension d smaller than the minimum gap width D to pass through. Members 8 are metal and could alternatively be of any suitable non-circular cross-section (e.g. oval) and may differ in cross-section. The flow direction is perpendicular to the plane of members 8.
Patent GB-868449-A (GB)
Title: Improvements in or relating to labelling machines
IPC: B65B51/06
Filed: 1958-03-22
Abstract: 868,449. Labelling machines. BARRACLOUGH Ltd, R. W., and BARRACLOUGH, R. W. June 22, 1959 [March 22, 1958], No. 9242/58. Class 73. [Also in Group XV II] Apparatus for applying labels to close the open ends of filled bags contains a stack of labels one of which is withdrawn, folded and transferred to a position where it is applied to the open edges of the bag. Initially, the apparatus is in the position shown in Fig. 1. A filled synthetic plastic bag is placed on a loading tray 55 with its open end resting on an upturned edge 56 and its bottom resting against an adjustable stop plate 57. A label coated with a heat sealable material is held by suction pads 16 between lightly sprung jaws 53 and a folding blade 40. A foot pedal 85, Fig. 2, is depressed causing a rod 106 to move downwardly and a lever 104 advances the tray 55 so that the open edges of the bag are inserted between heating jaws 28, 29. The depression of the pedal 85 also causes a shaft 65 carrying cams 64, 69, 73, 74, 80 (Fig. 3, not shown), to rotate and the pedal is locked in this position by the engagement of a locking lever with a projection 96. A rod 37 is lowered by the cam 64 and causes the heating jaws 28, 29 to close momentarily to tack seal the top edge of the bag. The cam 80 operates a valve to cut off suction from a suction pipe 17 on which the pads 16 are provided. Simultaneously, a rod 46 is moved downwardly by the cam 73 to cause the blade 40 to advance momentarily and engage along the centre line of the label to force it between the jaws 53. An arm 51 is oscillated to move a trolley 49 carrying the jaws 53 so that the jaws carry the folded label into alignment with the jaws 28, 29 and the sides of the label pass on to opposite sides of the top edge of the bag. A rod 26 is moved downwardly by the cam 69 so that the suction pipe 17 swings upwardly and the pads 16 engage the bottom label of the stack held in a magazine 15. The vacuum is connected and the pipe 17, with the label held on the pads, returns to its original position. During this movement, the heating jaws 28, 29 have closed to seal the label to the top of the bag and the trolley 49 returns to its original position. The jaws 28, 29 open and when the shaft 65 has completed a revolution the locking lever is disengaged from the projection 96 to release the pedal 85 and the tray 55 returns to its original position.
Patent GB-561961-A (GB)
Title: Improved means for preventing destruction of grain by insect pests
IPC: A01N59/18
Filed: 1940-05-27
Abstract: Grain in store is subjected to mercury vapour from solid porous bodies impregnated with metallic mercury, e.g. bricks &c., built into the wall of the store.  Examples describe the preparation of blocks of cement mixed with mercury to which a soap solution is added, and of plaster of Paris mixed with mercury, to which hydrogen peroxide solution is added to produce porosity.  The blocks may be cast on glass to produce a smooth surface.ALSO:Grain in store is subjected to mercury vapour from solid porous bodies impregnated with metallic mercury, e.g. bricks &c., built into the wall of the store.  Examples describe the preparation of blocks of cement mixed with mercury to which a soap solution is added, and of plaster of Paris mixed with mercury, to which hydrogen peroxide solution is added to produce porosity.  The blocks may be cast on glass to produce a smooth surface.
Patent GB-746641-A (GB)
Title: Active material for lead-acid storage batteries and a process for manufacturing dry negative storage battery plates containing said material
IPC: H01M4/56
Filed: 1954-03-30
Abstract: 746,641. Batteries. NATIONAL LEAD CO. March 30, 1964 [March 31, 1953], No. 9327/54. Class 53. The lead oxide active material for the nega. tive electrodes of storage batteries is mixed with a small proportion of a polycyclic aromatic oxidation inhibitor for lead consisting of one or more hydroxy naphthoic acids or nuclear substitution compounds or homologues thereof so that after being reduced to spongy lead they can be dried in a current of air and then exposed to the air without the lead becoming oxidized. The lead oxide may contain metallic lead and basic lead sulphate formed by the sulphuric acid used for making the paste. Usual expanders such as carbon and organic derivatives of lignin may be added.
Patent GB-791185-A (GB)
Title: Improvements in or relating to very high frequency transmission systems
IPC: H04B3/40
Filed: 1956-03-26
Abstract: 791,185. High-frequency transmission. TELEFUNKEN GES. March 26, 1956 [March 28, 1955], No. 9328/56. Class 40 (4). [Also in Group XL (c)] The invention relates to high-frequency transmission systems wherein a source is connected by a first transmission line or waveguide to a repeater, amplifier or relay equipment which feeds a load through a second transmission line or guide. In such systems when departures from correct impedance matching occur reflected waves travel along the lines and produce interference waves at the load end of the system. According to the invention steps are taken to cause such interference waves arriving at the load via different paths to wholly or partially cancel out. As shown in Fig. 1 this may be done by inserting means 6 for adjusting the electrical length of the line either in the line 4 connecting the source 1 and the intermediate equipment 2 or in the line 5 connecting the equipment 2 to the load. This means is adjusted for minimum interference effect at the load by sending impulses from the source 1, viewing the output on a cathode-ray oscilloscope, and making the echo impulses observed following the main transmitted pulse a minimum. This procedure cancels the energy from 1 reflected at 2 and again at 1 before it passes through 2 to 3 by means of out-of-phase energy from 1 passed by 2 but reflected at 3 and then again at 2. The means 6 may comprise an inserted line or guide of variable length or, in the case where guide connections are used, a length of guide into which a plate (or plates) of dielectric material can be inserted to an adjustable extent to control the velocity of wave propagation. For complete cancellation the amplitudes of the two interference waves referred to above should be equal which, due to differing reflection factors at the different points, they may not be. To bring them to equality a variable reactance may be inserted in series or parallel with the appropriate line and suitably adjusted. In one embodiment (Fig. 2, not shown) the variable reactance is a variable capacitor in shunt with one of the lines at one end thereof.
Patent GB-1128180-A (GB)
Title: Process for the production of crosslinked polyurethanes
Inventor: MULLER ERWIN
IPC: C08G18/08
Filed: 1966-03-03
Abstract: 1,128,180. Cross-linked polyurethanes. FARBENFABRIKEN BAYER A.G. 3 March, 1966 [23 March, 1965], No. 9404/66. Heading C3R. Cross-linked polyurethanes are prepared by reacting (i) a diisocyanate and (ii), if desired, one or more chain extenders having a M.W. up to 500 with (iii) a polyhydroxyl compound which has a M.W. of 2000 to 6000, contains mainly secondary hydroxyl groups and polyurethane segments and has been prepared by reacting a mixture of a substantially linear polyhydroxyl compound of M.W. 800 to 2000 and mainly containing secondary hydroxyl groups and a glycol containing two primary hydroxyl groups with a stoichiometric deficiency of a diisocyanate. In Examples (1 and 2), diphenylmethane-4,4<SP>1</SP>- diisocyanate and 1,4-butene diol are reacted with a polyhydroxyl compound prepared from a linear polypropylene glycol ether, 1,4-butane diol and diphenylmethane-4,4<SP>1</SP>-diisocyanate; (3) diphenylmethane-4,4<SP>1</SP>-diisocyanate and 1,4- butane diol are reacted with a polyhydroxyl compound prepared from a linear polypropylene glycol ether, 1,4-butane diol and hexamethylene diisocyanate; (4 and 5) toluylene diisocyanates, and in Example 4, or hexamethylene diisocyanate are reacted with a polyhydroxyl compound prepared from N-methyl diethanolamine, polypropylene glycol ether and diphenylmethane-4,4<SP>1</SP>-diisocyanate, followed by reaction with dimethyl sulphate or methyl chloromethylether and acetic acid respectively in water to form a latex and (6) 1,5-naphthylene diisocyanate and water are reacted with a polyhydroxyl compound prepared from a polypropylene ether glycol, 1,4-butane diol and diphenylmethane-4,4<SP>1</SP>-diisocyanate Reference has been directed by the Comptroller to Specifications 935,606 and 924,878.