baber/WOPTO huggingface dataset:
Patent GB-780072-A (GB)
Title: Improvements in or relating to load carrying litters
IPC: A61G1/06
Filed: 1954-05-28
Abstract: 780,072. Equipements for carrying loads. LAMOND, A. W. July 14, 1955 [May 28. 1954], No. 15914/54. Class 141 Supporting means for a load-carrying litter 33 comprises two harnesses 10 to be worn by two bearers and a pole 28 from which the litter is slung detachably articulated to the harnesses. Each harness 10 comprises two inverted U-shaped metal straps 12 secured together in spaced relation by cross bars 14, 16, 17, 18. A strap 25 is provided at the lower ends of the straps 12 and eyes are provided on the cross bars to receive a hook on the pole 28.
Patent GB-118731-A (GB)
Title: Improvements in and relating to the Springing of Motor Road Vehicles and the like.
Inventor: SMYTH ALFRED WORSLEY
IPC: B60G11/04
Filed: 1917-11-01
Abstract: 118,731. Smyth, A. W. Nov. 1, 1917. Elliptical and semi-elliptical springs d, f are secured together centrally, above the axle support, and have the ends connected together by links n and levers m ; the levers m being pivoted on the chassis of the vehicle. In a modified form an inverted semi-elliptical spring may be superposed over the spring d and have its central point attached to the chassis.
Patent GB-1432240-A (GB)
Title: Method for the vapour-phase growth of single crystals
IPC: C30B23/00
Filed: 1973-04-04
Abstract: 1432240 Crystal growth by sublimation E V MARKOV A A DAVYDOV and N N POGORELOVA 4 April 1973 16061/73 Heading C1A [Also in Division B1] A method of growing a single crystal of sublimable material comprises, providing a temperature gradient along the interior of an elongate container 1 so as to vaporize a charge of material 2 in a relatively hot zone in the container and create a flow of the vaporized material from the relatively hot zone to a relatively cool zone, and providing in a zone of intermediate temperature an assembly comprising a substrate 5 which carries a monocrystalline seed 4 in a zone of intermediate temperature, the substrateseed assembly being spaced inwardly from the peripheral walls, the substrate-seed assembly being positioned so that the partial pressure gradient of the vaporized material between the charge and the surface of the growing crystal is less than or equal to the partial pressure gradient of the vaporized material between the end of the substrate-seed assembly adjacent and the end remote from said relatively hot zone of the container. The substrate-seed assembly may be moved towards the relatively cool zone at a rate equal to the rate of single crystal growth. The examples illustrate the growth of oriented single crystals of cadmium sulphide, selenide and telluride and of zinc telluride.
Patent GB-1441963-A (GB)
Title: Controlled shearing of metal parts
IPC: F42B3/00
Filed: 1973-06-15
Abstract: 1441963 Shearing; punching ETAT FRANCAIS 15 June 1973 [26 June 1972 11 Jan 1973] 16208/73 Heading B3W A method of effecting rupture of a metal member and separation of parts of the member so ruptured comprises subjecting the member to pure shearing stresses resulting from explosion of a charge having a mass energy of at least 100 joules/gram and α detonation velocity of at least 3000 metres/sec., the charge being housed in a housing, at least part of one wall of which provides a surface on which gases available on explosion of the charge can act in effecting rupture and separation of parts of the metal member, which surface is provided either by surface of the metal member or by a surface of a displaceable member which bears at a forward surface thereof directly or indirectly on a surface of the metal member, the quantity of the explosive charge being such that the volume initially available to said gases is not more than half the volume available when said rupture and separation of parts is achieved. In a circuit breaker, Fig. 1, a metal member 10 to be sheaved comprising a hollow cylinder 10A screwed on a terminal 2 and a cylinder 10B frictionally engaging a contact portion 70 of a terminal 1, grooves 11, 12 forming a plane of weakness at the desired shearing plane. Explosive charge 14 and detonator 15 are housed in a recess 13. To interrupt normal flow of current between terminals 1 and 2 a firing current is supplied to the detonator, shearing occurs along the plane 11-12 and the portion 10B is driven against a lead cylinder 17, causing plastic or permanent deformation of the cylinder. In a second embodiment of circuit breaker (Fig. 2, not shown) a punch (26) and an insulating pad (27) are interposed between the open side of the charge housing (23) and a portion (28a) of a metal plate (28) which constitutes a calibrated fuse, a row of perforations (30) defining opposed edges of the fuse. The plate (28) extends out of opposed slots in a cover (29) screwed to a body (21) in which a member (32) housing the charge (25) is mounted. When current is supplied to an explosive wire of detonator (24) the fuse portion is sheared from the plate, the insulating pad (27) being moved to span the gap in the plate (28). The face of the pad (27) adjacent the fuse is preferably covered with metal sheet or foil. The sheared fuse portion (28a) may eventually contact two further terminals and so close a control or measuring circuit. A bolt or cable cutter, Fig. 3a comprises a cylinder 41 with opposed openings for the cable &c. and a piston 52 formed with a tapered blade 55 shaped to embrace the cable &c. and coacting with a similar fixed blade 57. An explosive charge 50 of lead nitrate and pentrite is housed in a ring 51 opening on to an exploding wire detonator 48 at one side and the rear face of the piston on the other.
Patent GB-569228-A (GB)
Title: Sulphanilamide derivatives
IPC: C07D239/69
Filed: 1943-11-04
Abstract: 2 - (p - Acylaminobenzenesulphonamido) - 4 - methyl-pyrimidines are produced by heating a 2-(p-acylaminobenzenesulphonamido) -4-methylpyrimidine-6-carboxylic acid alone or advantageously in the presence of an inert high-boiling organic liquid, e.g. quinoline, N-dimethyl-p-toluidine or dimethylaniline and in the presence of a decarboxylation catalyst, e.g. copper-bronze. Specified acyl groups are acetyl and propionyl and an approximate temperature range of 190-250 DEG  C. is suitable where the acyl group is acetyl.  In an example, 2-(p-acetylaminobenzenesulphonamido) -4-methyl-pyrimidine-6-carboxylic acid, quinoline and copper-bronze are heated together for 1 hour under reflux and the product is extracted with benzene.  2 - (p - Acetylaminobenzenesulphonamido) - 4 - methyl-pyrimidine-6-carboxylic acid is prepared by heating at 145-150 DEG  C. for 6 hours under reflux a stirred mixture of p-acetylaminobenzenesulphonyl-guanidine and oxalacetone ethyl ester and subsequent saponification of the ethyl ester so obtained (cf. Specification 552,887).
Patent GB-741958-A (GB)
Title: Improved production of metallic titanium
IPC: C25C5/04
Filed: 1953-06-12
Abstract: 741,958. Electrolytic production of titanium metal. HORIZONS TITANIUM CORPORATION. June 12, 1953 [July 3, 1952], No. 16285/53. Class 41. The particle size of titanium deposited by electrolysis of an alkali metal fluotitanate in a substantially anhydrous fused salt diluent bath, is increased by incorporating in the bath a halide of a normally tetravalent metal, which will go into solid solution in titanium, the amount of extraneous tetravalent metal halide being sufficient to yield a titanium metal cathode deposit containing at least 0.5 per cent by weight of the tetravalent metal component of the extraneous halide. The amount of tetravalent metal halide in the bath comprises from 0.2 per cent to 5 per cent by weight of the alkali metal fluotitanate in the bath, the tetravalent metal halide content of the bath being calculated as a simple halide. The tetravalent metals used are zirconium, hafnium and thorium, and are preferably used as double halides with an alkali metal, e.g. potassium zirconium fluoride (potassium fluozirconate, K 2 ZrF 6 ), potassium hafnium fluoride (K 2 HfF 6 ) and potassium thorium fluoride (KThF 6 ). Simple tetrahalides of the metals may also be used. The fused salt bath may comprise alkali metal and alkaline earth metal halides, such as sodium chloride or a eutectic mixture of sodium and potassium chlorides. Sodium and potassium fluotitanates may be used in the bath, preferably purified to the extent that their total content of aluminium, chromium, iron and vanadium is less than 0.02 per cent by weight. The fluotitanate and tetravalent metal halide are purified by recrystallization in aqueous medium, followed by drying by heating under a vacuum. Specification 736,567 is referred to.
Patent GB-233558-A (GB)
Title: Improvements in connection with pressing and like rollers in drawing frames, roving frames and similar textile machines
IPC: D01H5/56
Filed: 1924-07-08
Abstract: 233,558. Brymer, D., & Low & Co., Ltd., J. F. July 8, 1924. Rollers and roller heads.-The bearing bushes C of the pressing and like rollers of drawing, roving, and like frames are carried on pivots D in a frame E of such length as to embrace the rollers B, whereby the loss of the bushes during the removal of the rollers is prevented and the removal and replacement of the rollers is facilitated. The arms of the frame are preferably sufficiently elastic to allow the bushes to be sprung into place, and a wood or other strapping G is provided to form a handle. The bushes are pivoted above their centres of gravity so as to hang vertically and their lower ends Fare preferably pointed so as readily to enter the bearing- slides.
Patent GB-166120-A (GB)
Title: Improvements in or relating to paper or like sheet feeding devices
IPC: B65H1/04
Filed: 1921-06-15
Abstract: 166,120. Toronto Type Foundry Co., Ltd., (Assignees of Olson, A.). July 3, 1920, [Convention date]. Addition to 166,115. Sheet-separators; pile tables and supports.- Sheet-feeding mechanism of the kind described in the parent Specification, in which a bank of sheets is supported on a table formed of a number of pivoted adjustable sections, the front edges of the sheets resting on an inclined ledge adjacent to a pair of rubber-covered feed and separating rolls as e, g, the adjacent peripheral surfaces of which rotate in opposite directions, is modified (a) by mounting the upper roller e in hinged side brackets cushioned on springs n, Fig. 2, and controlled by screws m, and (b) by arranging an adjustable guard member h, Figs. 4 and 5, with curved prongs h<1> to regulate theaction of the lower roller g. The guard h is longitudinally adjustable by means of nuts i, i<1> en. gaging a screwed stem h<11> on the guard. The stem passes through a block j which is laterally adjustable on a side plate k mounted transversely between the side frames of the machine.
Patent GB-771690-A (GB)
Title: Improvements in or relating to lubrication for textile machinery
IPC: D01H7/20
Filed: 1954-06-04
Abstract: 771,690. Spindle lubricating devices. ADLINGTON, F., and WHITWORTH, G. W. Sept. 5, 1955 [June 4, 1954], No. 16551/54. Class 120 (2). [Also in Group XXXIV] A lubricating device for the spindle 16 of a textile spinning, twisting or like machine comprises a receptacle 11 for a lubricating pad 18, a bush 12 being fixed in the receptacle and being provided with slots into which parts of the pad project for contact with the spindle. Above the pad is a dished washer 21 down which lubricant is poured to flow through an opening 22 on to the pad. The pad may be formed with a slit in the centre to enable it to be stretched over the top of the bush 12 into position in the receptacle 11. Alternatively the pad may be formed as a washer the internal diameter of which corresponds substantially with the diameter of the bore of the bush 12.
Patent GB-384211-A (GB)
Title: Improvements in and connected with machines for making pats of butter and the like
IPC: A01J21/02
Filed: 1932-06-13
Abstract: 384,211. Making pats of butter &c. BROWN, B., 55, Tawney Street, Boston, Lincolnshire. June 13, 1932, No. 16703. [Class 87 (ii).] Pats of butter &c. are made by extruding the material through one or more apertures 3 of any desired shape ir the base of a container 1, by a plunger 24 coupled to a screwed handle 32, the container being rotated bodily around a column 8 by the handle 32, but without rotatior of the handle about its own axis. The expressed material is cut off by a cutting wire 4 supported at 5 and tensioned by a bolt and wing-nut 6, 6a. The screwed handle works through the threaded boss 26 of a spidered ring which engages with a ring 28 by a bayonet-joint. The container may be of stainless steel, glass, &c. and is supported by a clamping member 18 pivoted on an arm having a boss 11 mounted on a spindle 12 which may be integral with the column 8.
Patent GB-240254-A (GB)
Title: Improvements in and relating to coal-cutting and like tools
IPC: E21C25/20
Filed: 1925-04-07
Abstract: 240,254. Anderson, J. S. April 7, 1925. Percussive drills.-A percussive drill for coal or rock drilling is furnished with radial cutters f<1> held by means of a nut f<4> in a carrier f secured to the drill bar by a pin f<2>. The usual end cutter is fitted in the socket a<3>, and a number of such carriers f may be arranged along the bar.
Patent GB-1221106-A (GB)
Title: Apparatus for plasma arc metal machining
Inventor: LEPP VLADIMIR ROMANOVICH
IPC: B23K10/00
Filed: 1968-04-08
Abstract: 1,221,106. Automatic current control. V.R. LEPP, J.S. SEVIEV, I.S. SHAPIRD, B.D. BEIDER and L.M. PERSITS. April 8, 1968, No.16723/68. Heading G3R. In apparatus including a plasma arc torch (not shown), the torch is supplied from a source a, b, c by way of a contactor 19, a transformer 20 and a magnetic amplifier 22 having control windings 23, 24, and, in operation, the arc current is maintained at a desired value by the corrective regulation of the control current in the winding 24 in dependence upon an error signal representative of arc-current variations; this error signal is derived from a resistor 31 to which a reference voltage is applied at terminals/, g in opposition to an arc-current dependent signal obtained from a current transformer 28 associated with a rectifier 29, variations in the error signal caused by fluctuations and ripple in the arc current being smoothed by an integrating circuit 30, 32. The error signal is applied to the gate electrode of a thyristor 33 the firing point of which is thus controlled, in dependence upon arc-current variations, to regulate the control current in the winding 24 which is supplied from the secondary winding 21 of the transformer 20 by way of the thyristor 33. The control winding 23 is associated with an RC circuit 27 which allows the initial arc current to build up gradually to the working value when the apparatus is first switched on; the apparatus may be remotely controlled Fig. 1 (not shown), and as a higher operating voltage is then required a further RC circuit 26, associated with the winding 24, co-operates with the circuit 27 to effect the initial current build-up, the circuits 26, 27 being controlled by a relay carrying the arc current; the secondary windings 21 of the transformer 20 are connected in star to provide the higher operating voltage required for remote control.
Patent GB-698572-A (GB)
Title: Improvements in or relating to grinding wheels and like abrasive bodies
IPC: C09G1/00
Filed: 1951-07-16
Abstract: A solid abrasive body comprises abrasive grains of crystalline fused zirconia bonded with an organic polymer selected from thermo-setting phenol-formaldehyde resins, thermo-setting aniline-formaldehyde resins, butadienestyrene copolymers vulcanized with at least one-third of their weight of sulphur, butadieneacrylonitrile copolymers vulcanized with at least one-third of their weight of sulphur and mixtures thereof.  Where vulcanization is carried out it is preferred to use an amount of sulphur equal to 37 per cent of the copolymer.  Monoclinic fused zirconia or cubic fused zirconia stabilized with lime, magnesia, barium oxide or strontium oxide may be used.  In an example employing a phenol-formaldehyde resin, furfural is used to wet the abrasive grains and the composition contains also iron pyrites and potassium fluoborate as fillers, lime as anti-swelling agent, vinylidene chloride as cross-linking agent and cresote oil. Cryolite and furfural may be included in compositions using aniline-formaldehyde resin as binder.  Grinding wheels are made from the compositions by hot pressing.ALSO:A solid abrasive body, e.g. a grinding wheel, comprises abrasive grains of crystalline fused zirconia bonded with natural rubber vulcanized with at least one-third of its weight of sulphur. It is preferred to use one-half of its weight of sulphur. Monoclinic fused zirconia or cubic fused zirconia stabilized with 5 per cent. lime, magnesia, barium oxide or strontium oxide may be used.  In an Example, the bond includes 50 per cent. of cryolite.
Patent GB-135803-A (GB)
Title: Improvements in and relating to Razor Blades.
Inventor: MONEY GEORGE THEOPHILUS
IPC: B26B21/56
Filed: 1919-07-07
Abstract: 135,803. Money, G. T. July 7, 1919. Drawings to Specification. Packing razor blades.-Razor blades having a single cutting-edge are packed two in a package with the unsharpened edge of one blade protecting the sharp edge of the other.
Patent GB-638920-A (GB)
Title: Improvements in or relating to head-gear for electro-acoustic transducers
Inventor: ROBERTON JAMES SAMUEL PATERSON
IPC: H04R1/10
Filed: 1947-06-27
Abstract: 638,920. Earpiece attachments. STANDARD TELEPHONES & CABLES, Ltd. June 27, 1947, No. 17047. [Class 40 (iv)] The free end 5 of a head-band supporting a telephone earpiece or a deaf aid is loosely fitted into a slot 2 in a pad 1, and is retained therein by a flexible projection 4 pressed out of the end 5 engaging a hole 3 in the pad. Alternatively the pad may be formed of a resilient material and the band be provided with a rigid projection. Various shapes of pad and types of projection are described.
Patent GB-542159-A (GB)
Title: Improvements in and relating to air heaters or recuperators
IPC: F28D7/12
Filed: 1940-11-29
Abstract: 542,159. Regenerators. BRITISH FURNACES, Ltd. (Surface Combustion Corporation). Nov. 29, 1940, No. 17058. [Class 64 (i)] Air is heated in Field tubes 10 depending from a header 12 into a flue 11. The tubes are fully suspended to allow them to be readily removed through the top of the header, and their upper ends are bent over to dip into sealing material. The lower part of the header is protected by heat insulation 37.
Patent GB-314662-A (GB)
Title: Improvements in or relating to the roofs of vehicles
IPC: B60J7/12
Filed: 1928-06-13
Abstract: 314,662. Hooper & Co. (Coachbuilders), Ltd., and Clinton, G. E. Pelham-. June 13, 1928. Opening tops.-In a roof opening for vehicles of the kind which can be closed by a strip of flexible material wound upon a roller and having its free end secured to one side of a frame pivotally mounted in the opening, two rollers are provided respectively housed in transverse head members adjacent to the front and rear sides of a casement mounted on central pivots in a fixed frame. One roller E carries the flexible cover G and the other roller F carries the lining H and the free ends of the cover and lining are secured to the edges of a casement D centrally pivoted at D' so that when rotated the opening is covered or it is uncovered the cover and lining being wound on their respective rollers automatically. A drainage channel A<2> is provided, The longitudinal edges of the cover G are adapted to be scaled by ribs J carried by curved arms K<1> from levers K so that when it is desired to open the roof the ribs move upwards and laterally to clear the rotatable casement. The ribs are clamped by means of screws L.
Patent GB-653032-A (GB)
Title: An improvement in or relating to kerbs for fireplaces
IPC: F24B1/198
Filed: 1948-06-25
Abstract: 653,032. Curbs for fireplaces. EGLIN, Ltd., W. P.. THORNBER, H., and DYSON,. R. June 25, 1948, No. 17091. [Class 126] A curb comprises a supporting base to which a facing sheet is secured by the legs of a metal angle strip which are bent inwardly back upon themselves, another metal angle strip having one leg secured to the base and the other adapted to be slid into the fold of the bent portion of one leg of the first angle strip. Facing panels d, e of a curb having a base a are secured by a finishing angle strip c the legs of which are bent back upon themselves. The finishing angle strip e is secured to the base a by a fixing angle strip b one leg of which is nailed to the base a, the other leg b' engaging one of the bent legs of the finishing angle strip c. At the rear and bottom of the curb, the finishing angle strips f, i may be nailed directly to the base a without the use of finishing angle strips.
Patent GB-1036738-A (GB)
Title: Improvements in interference film development
IPC: G03G16/00
Filed: 1963-05-01
Abstract: 1,036,738. Electrophotographic processes. RANK XEROX Ltd. May 1, 1963 [May 8,1962], No. 17152/63. Heading G2H. Plate 10 Fig 3 having an insulating photoconductive layer 13 e.g. of sulphur, anthracene, selenium, or zinc oxide in a binder on a support 11 is thinly coated with solution 15, Fig. 1 (not shown) by suspending in a tank 14. The solution may be a dilute solution of either a solid material or a non- volatile liquid dissolved in a volatile solvent. Examples of the solution are sucrose acetate isobutyrate, Piccolastic, Flexal and Narcoil. The thickness of the coating is controlled by varying the rate of withdrawal of the plate. The preferred coating thickness is in the range 80 to 125 millimicrons which exhibit interference between the light from its two reflecting surfaces for rendering images in the film visible. The support 11 is of metal, metal foil, metallized paper or plastic. Plate 10 is charged by passage of a corona 18, Fig. 3, connected to a high voltage supply and then exposed by projecting a light pattern on to the plate from a photographic enlarger 20, Fig. 4 (not shown) The film 13 may be softened by heat Fig 5 (not shown) or vapour Fig 6 (not shown). Due to differential electrostatic forces acting on the surface of the film after charging and exposure there are minute variations in the thickness of film 13. The images thus produced may be projected on it a screen 27, Fig. 7 (not shown) using a monochromatic light source 24, e.g. a mercury or sodium vapour lamp. The plate may be exposed to a screen pattern. When the film 13 comprises silicone resin, the application of a positive charge yields a positive image, Fig 8A (not shown), while a negative charge yields a negative image, Fig. 8B (not shown).