baber/WOPTO huggingface dataset:
Patent GB-518160-A (GB)
Title: Improvements in vulcanization of rubber
IPC: C08K5/00
Filed: 1939-03-01
Abstract: 518,160. Indiarubber vulcanization accelerators. CONSOLIDATED RUBBER MANUFACTURERS, Ltd. March 1, 1939, No. 6678. Convention date, March 1, 1938. [Class 70] [Also in Group IV] A compound having a nucleus of the formula is used as an accelerator for rubber vulcanization. Compounds specified include the ketoenol type of compounds exemplified by 3.3 dimethyl thion indoline :- 2 mercapto pyrrole, 2.5 dimercapto pyrrole, 2 mercapto pyrroline, 2.5 dimercapto pyrroline, 2 thionindoline, 3.3 dialkyl-2-thion indolines. 3.3 dimethyl thion indoline is prepared by reacting 3.3 dimethyl oxindol and phosphorus pentasulphide. The compounds may be used as free mercaptans, or in the form of derivatives such as mono and polysulphides, metallic salts, ammonia or amine salts, thio ethers hydrolyzing or decomposing to an accelerating body at vulcanization temperatures, acidyl, aldehyde and ketone derivatives. They may be used with adjuvants such as ammonia compounds, amines, amine salts, organic bases such as urea, diaryl guanidines and their acyl derivatives and salts or with other accelerators such as aldehyde amines, guanidine, guanidine salts, dithiocarbamates, xanthates, and mercaptobenzothiazole. The term rubber includes guttapercha, balata, synthetic, natural or reclaimed rubber, and rubber isomers.
Patent GB-1074051-A (GB)
Title: A hydraulic pressure regulating valve
IPC: B60T8/26
Filed: 1965-02-16
Abstract: 1,074,051. Fluid pressure brakes; fluid pressure control valves. BUDD CO. Feb. 16, 1965 [March 24, 1964], No. 6691/65. Headings F2F and F2V. A pressure-regulating valve for matching the characteristics of disc brakes to those of drum brakes comprises a valve housing having an inlet 25 and an outlet 28, a valve assembly 19 which is held in the closed position by a spring 31 until opened by hydraulic pressure, and, a check valve 33 permitting fluid to return from the outlet to the inlet. As shown, pipe 3 from the master cylinder of a motor vehicle supplies hydraulic fluid direct to drum type rear brakes through a pipe 4 and to disc type front brakes through the regulating valve and a pipe 7. At a low pressure the check valve 33 closes and no fluid passes to the front brakes. When the pressure rises to about 125 p.s.i. the pressure lifts a valve member 22 and fluid at a reduced pressure passes to the front brakes, the degree of pressure reduction depending on the ratio of the area D1 of the valve member 22 to the area D2 of a piston 20 one side of which is exposed to atmospheric pressure. At a pressure of about 320 p.s.i. the pressure acting on the area of the piston 20 maintains the valve in the open position, and the inlet and outlet pressures become equal. The check valve 33 permits fluid to return freely when the pressure is being reduced, the pressure at the ports 25 + 28 then being equal at all times.
Patent GB-1256423-A (GB)
Title: Process and apparatus for the treatment of rigid material with chlorinated hydrocarbons
IPC: C23G5/02
Filed: 1969-02-07
Abstract: 1,256,423. Hot dip painting apparatus. WACKER-CHEMIE G.m.b.H. 7 Feb., 1969 [13 Feb., 1968], No. 6736/69. Heading B2L. [Also in Division C7] Apparatus for hot dip lacquering as described in Specification 863526 of the type having a chamber 1 heated at 8, and a chamber 2 having a cooling coil 3 connected to the chamber 1 by an opening 5, is provided with a partition 4 in the cooling chamber and extending below the cooling coil 3, the vapour being at the same level on each side of the partition. In a modification (Fig. 2, not shown) the cooling chamber, is arranged inside the chamber 1. A pipe 7 vents the chamber 2 to atmosphere or the working space. A separator 11 separates the hydrocarbon from water, which is removed at 9. The effect of the partition 4 is to maintain a vapour seal, which keeps atmospheric moisture from reaching the cooling coil, yet allows water vapour to be removed from the hydrocarbons.
Patent GB-683106-A (GB)
Title: Improvements in fire fronts for domestic solid fuel open type fireplaces or grates
IPC: F23M7/00
Filed: 1951-03-21
Abstract: 683,106. Grates. MELTON, A., and WARRINGTON LIGHT CASTINGS CO., Ltd. March 21, 1951, No. 6752/51. Class 126 A front for an open fire grate comprises an adjustable ash pit door to regulate the ingress of air, a transverse grid or grate bar unit above the level of the grate bottom and a plate which masks the front of the grate bar unit in one position to obstruct the ingress of air through the front grate bars and, in another position, uncovers the grate bars and serves a a trivet. A grate bar unit 15 is mounted between the upwardly and rearwardly sloping side cheeks 10a of a fire front. The lower part of the front has an ash pit opening defined by a forwardly projecting flange 10b and closed by a hinged door 12 provided with an arcuate spring metal strip 14 to hold it in any desired position. A trivet 18 is hinged on pins 18a engaging between recesses formed at the lower edge of the grate bar unit 15 and the fire front proper. The trivet can be swung about the pins 18a to close the front of the fire grate. Lugs 15d, 15e are provided on the grate bar unit to secure it to the side cheeks 10a, and the bottom bars of the grate respectively. The bottom part of the ash pit door flange may be omitted and an arcuate extension of the ashpit door may replace the arcuate metal spring 14.
Patent GB-1156448-A (GB)
Title: Process for the production of Calcium Cyanamide
IPC: C01C3/18
Filed: 1968-02-12
Abstract: 1,156,448. Calcium cyananide. SUDDEUTSCHE KALKSTICKSTOFF - WERKE A.G. 12 Feb., 1968 [17 Feb., 1967; 12 Jan., 1968], No. 6814/68. Heading C1A. Calcium cyananide is produced by heating calcium oxide, or materials containing it, with urea (and/or thermal decomposition products of urea) at temperatures above 400 C., with removal of the water produced by reaction with a suitable reagent. These may be carbon, carbon monoxide, a hydrocarbon, or a carbon monoxide-ammonia mixture. The calcium oxide material may be calcined chalk, and it may contain up to 7% calcium chloride or up to 5% calcium fluoride. The particle size is preferably less than 40 mm. Pressures up to 10 atmos. may be used, and temperatures from 500 to 900 C. The temperature of the reaction may be regulated by means of an inert gas. The reaction may be carried out directly by mixing and heating, or by mixing and heating in a current of carbon monoxide or hydrocarbon, or in a fluidized bed where reaction gas, or reaction waste gas is used as the fluidizing agent. A gaseous decomposition product of urea, or a mixture of such a product with carbon monoxide or a hydrocarbon may be introduced into a stationary layer of chalk. The urea or its decomposition product may also be introduced in a solid or molten state The process may be carried out continuously in two or more serially connected fluidized beds. Residual calcium oxide may be converted to calcium carbonate by contacting a product formed at above 650 C. with reaction waste gas at a temperature below 650 C. The chalk component used in fluidized beds may have a particle size of less than 0-25 mm., and preferably less than 0À05 mm.
Patent GB-731317-A (GB)
Title: Improvements relating to ozonising apparatus
Inventor: CLARKE MAURICE GEORGE
IPC: C01B13/11
Filed: 1953-03-12
Abstract: 731,317. Treating gases with discharges. BRITISH THOMSON-HOUSTON CO., Ltd. March 12, 1953, No. 6826/53. Class 39 (1). An ozonizer electrode consists of an evacuated glass tube 1 provided with an electricallyconducting coating 7 on its inner wall and with lead-in conductors 6 sealed through its ends. The conductors 6 are connected to the coating 7 by springy metal strips 8 pressing against: blobs 9 of fused glass frit mixed with graphite. The coating 7 may comprise aluminium or colloidal graphite. The electrode is associated with a coaxial electrode in the ozonizer. Specification 592,038, [Group XXIII], is referred to.
Patent GB-1062510-A (GB)
Title: Acrylic polymer compositions
IPC: C08K3/28
Filed: 1966-02-17
Abstract: An acrylonitrile homo- or copolymer is dissolved in an anhydrous melt of two or more compounds selected from sodium thiocyanate, potassium thiocyanate, ammonium thiocyanate and thiourea.  The solution is moulded, spun into fibres or used to form films, the thio compounds being removed therefrom by water-washing. An acrylonitrile-methyl acrylate copolymer is dissolved in an NH4CNS/(NH2)2CS melt in Example 1, an NaCNS/KCNS melt in Example 4 and an NaCNS/NH4CNS melt in Examples 5 and 6.  In Examples 2 and 3 respectively, polyacrylonitrile and an acrylonitrilestyrene copolymer are dissolved in NaCNS/KCNS melts.
Patent GB-406486-A (GB)
Title: Improvements in or relating to electrical measuring instruments
IPC: G01R11/36
Filed: 1933-03-09
Abstract: 406,486. Supply meters. WESTING- HOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.-(Assignees of Barnes, T. D. ; 206, Roseville Avenue, Newark, New Jersey, U.S.A.) March 9, 1933, No. 7172. Convention date, March 18, 1932. [Class 37.] In order to correct the registration curve of a meter at low loads, the laminations of the magnet core are formed with gaps forming local zones of relatively high reluctance, the laminations being arranged so that these zones are out of alignment. The magnetic core shown in Fig. 1 comprises laminations, each having a peripheral portion 4 from which project inwardly a shunt pole 6, series poles 10, and side parts 8 so as to provide a gap 12 for the reception of a disc armature. An overload shunt 14 is disposed between the series poles 10. Each lamination is formed with a gap 16 to one side of the centre line. These gaps may be open or may be filled with inserts of a reluctance value different from that of the main part of the laminations. The laminations are stacked in groups, alternate groups being reversed so as to bring the gaps 16 on opposite sides of the centre line. By varying the number of laminations in a group, as shown in Figs. 2, 5 and 7, the reluctance of the core, and consequently the registration curve of the meter, may be adjusted.
Patent GB-427361-A (GB)
Title: Improvements in or relating to helmets, hats or similar head coverings
IPC: A42B1/02
Filed: 1934-03-06
Abstract: 427,361. Sun helmets &c. OWEN, J. E., 72, Beresford Road, Chingford, Essex. March 6, 1934, No. 7178. [Class 63] In the manufacture of helmets, hats, and similar head coverings for tropical wear, a mixture of aluminium in flaked or powdered condition with a non-greasy liquid or latex is applied, preferably by means of a spraying device to the hat &c. foundation or the layers of material forming the same. The ingredients of the mixture are, preferably in or about the proportions of 5 ozs. of flaked aluminium to 1 pint of latex. The layer resists the penetration of the infra-red or heat rays.
Patent GB-812310-A (GB)
Title: Reinforced concrete building structures
IPC: E04B1/21
Filed: 1957-03-05
Abstract: 812,310. Concrete building structures; girders; floors. HENDERSON, A. March 5, 1957, No. 7234/57. Class 20(4) In a reinforced concrete building structure, continuous girders 13 extend completely across a number of columns 10 provided with means for supporting the girders, and each girder has a vertical web, one face of which abuts the outer vertical faces of the columns, and oppositely directed upper and lower flanges 14, 15, the flanges 14 extending between the columns, and the flanges 15 projecting outwardly. As shown, the upper flanges 14 of the Z-section girders rest on brackets 11 cast integrally with the columns and having embedded therein dowel pins 12 over which are fitted sections 16 of pipe embedded in the flanges. The flanges 15 are slit at 15a to prevent warping of the girders through uneven shrinkage. Floor or roofing slabs 17 are supported on the flanges 15. In modifications, (a) the girders 20 are of double-Z form and have central holes through which the columns extend, the webs 21, Fig. 4, of the girders resting on ledges 22 formed on the columns, and (b) the flanges 14 extend between the columns and the webs and lower flanges are continuous, the girders being secured by bolts passing through the columns.
Patent GB-1023920-A (GB)
Title: New or improved safety panelling arrangement at the dashboard of a motor vehicle
IPC: B60K37/00
Filed: 1965-02-19
Abstract: 1,023,920. Safely guards. DAIMLERBENZ A.G. Feb. 19, 1965 [Feb. 20, 1964], No. 7314/65. Heading B7B. A safety panel 4 is positioned above the dash panel 3 by a hinged or bendable part 6 secured at 8 to the panel 3 and by a readily deformable part 9 of circular, stepped or zig-zag crosssection thus giving a greater decelerating distance on impact.
Patent GB-609189-A (GB)
Title: Improvements in or relating to plastic mouldings having metal inserts
IPC: H01R13/405
Filed: 1946-03-08
Abstract: 609,189. Holders for discharge tubes. BENN, A., and ALLEN, H. G. March 8, 1946, No. 7315. Drawings to Specification. [Class 38 (i)] [Also in Group V] The invention is concerned with moulding articles having inserts hermetically sealed therein, the inserts having grooves the sides of which converge at an angle of 14-16 degrees, these grooves being filled with plastic material, e.g. polythene during moulding. One application is the moulding of the holder for thermionic valves that is described in Specification 609,188.
Patent GB-763270-A (GB)
Title: Improvements in or relating to electronic valve circuits
IPC: H03K3/37
Filed: 1954-03-12
Abstract: 763,270. Electronic counting apparatus. GENERAL ELECTRIC CO., Ltd., and PEDDLE, E. A. R. March 14, 1955 [March 12, 1954], No. 7326/54. Class 106 (1). [Also in Group XL (c)[ A chain of cold cathode gas-discharge tubes may be employed as a counting chain, each cathode being coupled to the preceding and succeeding cathode by capacitors and also via resistor or rectifiers to the respective trigger electrode the pulses to be counted being applied simultaneously through capacitors to the trigger electrodes of all the tubes in the chain. The tubes have a common anode load resistor thus ensuring that only one tube can be fired at any instance and a resistive connection between the cathode of each tube and the trigger load resistor of the succeeding tube. The cathode of each tube is connected to its own trigger electrode so that a proportion of any positive voltage appearing at the cathode is applied to the trigger electrode, thus ensuring that the potential across the anode to trigger electrode discharge gap is decreased below the extinction potential for that gap on application of a positive going impulse to the cathode of the tube. Fig. 2 shows a bistable trigger circuit in which cold cathode gas tubes 1, 2 are interconnected via capacitor 13 and in which trigger pulses are applied to inputs 16, 17 bias voltages being applied at 18, 19. When for example tube 2 is fired by a positive going incoming pulse the positive voltage across cathode resistor 5 applied via capacitor 13 to the cathode of tube 1 renders tube 1 non-conductive a portion of the positive voltage produced across cathode resistor 5 is also applied to the trigger electrode of tube 2 via resistors 24 and 49, thus raising the potential of the trigger electrode and ensuring that the anode/trigger voltage is below extinction potential at all times. In a modification shown in Fig. 3, when either cathode of tubes 1 or 2 becomes positive the voltage is fed via diodes 25 or 26 respectively, to the trigger load resistors 8 or 9. In a further modification the voltage is fed to the respective trigger electrodes directly via diodes 27 or 28 which may be thermionic valves, selenium rectifiers or germanium crystal.
Patent GB-1272537-A (GB)
Title: Device for mounting and centering a work piece e.g. in a machine tool
Inventor: FORSSTROM SVEN GUNNAR
IPC: B23B31/177
Filed: 1970-02-16
Abstract: 1,272,537. Chucks and mandrels. BERGMANS MOTORINDUSTRI A.B. 16 Feb., 1970 [24 Feb., 1969], No. 7359/70. Heading B3B. A device for mounting and centring a workpiece by an internal or external circular surface comprises two or more conical surfaces la, 1c formed on a shaft 1 or sleeve 18 each supporting a series of balls 2 which are radially displaceable to grip the workpiece by means of relative axial displacement between the shaft 1 or sleeve 18 and retainer members in the form of, e.g. spacer members 3a, 3b, 3c, 3d, or a casing 19, respectively. The conical surfaces taper in the same direction and the axial spacing between the balls is kept constant by the retainer member or members. The balls 2 may act directly on the workpiece or may act on at least three transfer members 17 which move radially in the casing 19 and which carry adjustable jaws 29. Alternatively the balls may act through thin slotted and grooved plates (15) (Figs. 5 and 6, not shown) which cover the balls. The spacers 3a-3d are moved axially by a nut 5 screwed on to the shaft 1. The sleeve 18 is moved by a rod 21 which can be coupled to a pneumatic or hydraulic piston. In an alternative embodiment (Fig. 3, not shown) for externally gripping a workpiece a sleeve (14) has internal conical surfaces and spacers are moved axially relative to the sleeve (14) by means of a screw and nut to move the balls along the conical surfaces.
Patent GB-665382-A (GB)
Title: Improvements in and relating to shutters for photographic cameras
Inventor: KERSHAW NORMAN
IPC: G03B9/10
Filed: 1949-03-18
Abstract: 665,382. Photographic shutters. BRITISH OPTICAL & PRECISION ENGINEERS, Ltd. Jan. 2, 1950 [March 18, 1949], No. 7393/49. Class 98 (i). The shutter comprises a plunger rod carrying a shutter blade driving-plate and upper and lower clip members above and below said plate, springs disposed between the upper clip and said plate and between the lower clip and a bearing for the lower end of the rod, respectively, a pivotally mounted lever locking the driving plate and a pivoted shutter blade actuated by the plate on depression of the plunger rod, the arrangement being such that depression of the rod first loads the spring between the upper clip and the driving-plate and then causes the lower clip to trip the locking lever and allow the spring-loaded driving plate to strike a pin on the shutter blade which thereupon uncovers an exposing aperture. As shown, on initial depression of a plunger 3 slidable in guides 9, 10 against its return spring 25 between an H-shaped clip 21 on the plunger and the guide 10, a spring 14 between the tail of a V-shaped clip 15 on the plunger and a plate 11 rotatably and slidably mounted on the plunger is compressed due to a pivoted lever 23, which is urged anticlockwise either by the end 26 of the plunger return spring or by a separate spring so as to latch the plate 11 against movement. When the right-hand forks of the H- shaped clip 21 on the plunger engage the surface 31 of said lever, the latter is moved clockwise, releasing the plate 11 which is then moved by spring 14 to drive a pin 33 extending through a slot 34 in the supporting plate 6 and secured to the shutter blade 27 pivoted on the opposite side of said plate at 28 to open the aperture 18. As the plunger continues its travel the pin 33 slips clear of the plate 11 and the shutter blade re-closes the aperture under action of its return-spring 35; and on release of the plunger 3, its return-spring returns the members to the position shown, the plate 11 rotating slightly to slip over the bevelled top 36 of the shutter blade pin. To produce a bulb exposure, an upstanding lug 37 on a spring blade 39 normally held against the plate 6 by a pin depending from a front cover-plate is moved into the path of the plate 11 by rotating the cover-plate 4 to move the pin from 71 to 7<SP>11</SP>. The plate 11 is thus arrested by the lug 37 after the shutter blade has been moved to open the aperture 18 which remains open until the plunger 3 is released and the plate 11 rises to allow the shutter return-spring 35 to move the blade 27 to close the aperture. A manuallyadjustable pivoted aperture-restricting plate 41 is provided.
Patent GB-452305-A (GB)
Title: Improvements in golf clubs
IPC: A63B53/06
Filed: 1935-03-09
Abstract: 452,305. Golf clubs. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Glover, E. ; 253, Tenafly Road, Tenafly, New Jersey, U.S.A.) March 9, 1935, No. 7442. [Class 132 (ii)] Means for locking the adjustable head of a golf club in selected position comprises a rotatable detent, sleeving the shaft and formed at its lower end with an annular flange movable by rotation of the detent into locking engagement with a toothed portion of the head. As shown in Figs. 1 and 4, a spigot 7 extends from the heel of the head 1 into a bearing 3 formed at the lower extremity of the shaft, disengagement being prevented by a headed pin 8 secured by a rivet 10. The head is thus adjustable about a horizontal axis to vary the angle of loft, and is locked in selected position by a nut 14 threaded on the shaft and engaging by its lower flanged end with teeth 12 on a sector-shaped extension 11 of the head. The heavy heel of the club is balanced by a projection 5 near the toe, the arrangement being such that the centre of gravity of the head is substantially equidistant from its ends but below the longitudinal median plane. In a modification, Fig. 8, the head is connected to a bearing 19 by a screw 21 secured to the head. The bearing is carried by a plug 27 threaded into a sleeve 17 forming the lower end of the shaft, rotation of the sleeve relatively to the plug serving to lock the head in adjusted-position by engagement of the flanged lower end of the sleeve with teeth 12 on a sector 11 threaded for engagement by the screw 21.
Patent GB-408093-A (GB)
Title: Improvements in or relating to steam or vapour traps
IPC: F16T1/10
Filed: 1933-03-11
Abstract: 408,093. Steam traps. SPIRAX MANUFACTURING CO., Ltd., and SMITH, H. A., 20, Queen Elizabeth Street, London. March 11, 1933, No. 7474. [Class 64 (ii).] In a steam trap having a corrugated metal bellows 8 containing a volatile substance, the valve seating 4 is of part spherical form, and a ball valve 7 is carried in a housing 10 which is laterally movable to adjust itself to the seating. To ensure an accurate seating, the seating is first roughly pre-formed, and the ball, which may be of stainless steel, is pressed into it. U.S.A. Specification 1,846,226 is referred to.
Patent GB-106157-A (GB)
Title: Improvements in or relating to Means for Preventing Vibration or Rattling of the Doors, Windows and the like of Wheeled Vehicles.
IPC: B60J1/00
Filed: 1916-05-26
Abstract: 106,157. Daimler Co., and Berriman, A. E. May 26, 1916. Doors for passenger vehicles. -The doors, windows, or the like of wheeled vehicles, are provided at their edges with a number of buffers consisting of studs 2 of resilient material, such as cork or the like, forced through countersunk holes in plates 1, all or some of the buffers being inclined at an angle to the door, as shown in Fig. 3, so that, when closed. the door is wedged in the framework of the vehicle.