baber/WOPTO huggingface dataset:
Patent GB-573862-A (GB)
Title: Improved device for measuring the distance between and/or indicating the parallelismof two surfaces
IPC: G01B5/00
Filed: 1943-12-20
Abstract: 573,862. Linear-dimension gauges. CURRAN MACHINE TOOLS, Ltd., CURRAN, J., and SHERVINGTON, H. J. Dec. 20, 1943, No. 21293. [Class 106 (ii)] A device for measuring the distance between and/or indicating the parallelism of two surfaces comprises a cross-member carrying a leg formed to bear on one of the two parallel surfaces, a saddle slidably mounted on the cross-member and having a depending leg carrying a plunger which bears resiliently on the second parallel face and is connected to an indicator, and means for locking the plunger and for locking the saddle. The device is suitable for measuring the parallelism of surfaces such as the inclined guide surfaces of lathe beds, and in use preferably has balls or rollers interposed between the parallel surfaces and the feeler members. The resilient plunger preferably has an inclined surface which is contacted by a second plunger arranged at an angle to the first and connected to a dial indicator. The cross-member 1 has a depending leg 2 which contacts the slide surface 5 of a lathe through the roller 4, which is preferably slightly barrel-shaped. The saddle 7, which may be locked on the cross-member by an eccentric 14 carries a plunger 12 which contacts the second parallel face 6 through the roller 13. Movements of the plunger 12 are transmitted by the spring-loaded plunger 10 to the dial indicator 8. The distance between the surfaces 5, 6 may be measured by comparison with a standard matrix, and variations in parallelism indicated by moving the assembly along the lathe bed.
Patent GB-645981-A (GB)
Title: Improvements in or relating to jig-saw puzzles
IPC: A63F9/12
Filed: 1948-08-12
Abstract: 645,981. Solid jig-saw puzzle toys. EMERICH, C. Aug. 12, 1948, No. 21294. [Class 132 (iii)] A three dimensional jig-saw puzzle to represent e.g. a human figure, an animal, bird, vehicle, aircraft or a building comprises a number of pieces with interfitting projections and recesses all held together finally by a key-piece 10 inserted last. Two central body parts 1 and 2 are first fitted over each other, the projections 1c fitting into recesses 2b and forming a central through rectangular hole for later reception of the wedge keypiece 10. To the assembled parts 1 and 2 are added shoulder pieces 3 and 4 on top and foot pieces 5 and 6 with feet 7 underneath. Tapered pieces 8 and 9 with retaining ends 8b, 8d are then inserted into the vertical rectangular hole which runs through all the pieces. The wedge shaped keypiece 10 carrying a head 11 is then pressed in from the top to hold all the pieces together and complete the figure. The external surface may be finished, e.g. coloured with a design to represent clothing &c. and the hands and arms, to provide a guide to the method of assembly and so avoid the need of a key diagram. The parts may be made of synthetic resin with hollows to' economize in material.
Patent GB-418039-A (GB)
Title: Improved method of multicolour printing
IPC: B41M1/20
Filed: 1933-07-31
Abstract: 418,039. Multicolour printing. SAVE, P. C. DE, 72A, High Street, Reigate, Surrey. July 31, 1933, No. 21416. [Class 100 (ii).] In the method of multicolour printing in which the material to be printed is applied to a polychromatic block consisting of blocks of solid colours arranged to form the desired pattern, the material is treated with gum or other adhesive to enable it to pick up the colours. When printing on paper, glass, wood, cork, linoleum, oilcloth, and other impervious or substantially impervious materials, the adhesive is applied to the surface which is to receive the print, but when printing upon very pervious materials, such as silk or cotton or other thin textiles, the adhesive is applied to the back of the material by a roller or squeegee under pressure to force it through the material on to the colour blocks.
Patent GB-445325-A (GB)
Title: The manufacture of ergometrine
IPC: C07D457/06
Filed: 1935-07-29
Abstract: Ergometrinine, an alkaloid of ergot, is prepared by treating ergometrinine (see Specification 445,324) or crude preparations thereof with a solution of an organic or inorganic acid in water or an organic solvent, advantageously in an inert atmosphere, and isolating the product.  According to the example, a solution of ergometrinine in alcohol containing phosphoric acid is boiled for some hours in an atmosphere of nitrogen and the resulting ergometrine separated by addition of alkali.  Impurities are removed by trituration with chloroform.
Patent GB-648392-A (GB)
Title: Improvements in or relating to the production of oriented polymers and copolymers
IPC: C08F236/16
Filed: 1947-08-07
Abstract: 2,3-Dichlorobutadiene-1,3 polymers or copolymers, of enhanced crystalline tendencies, are prepared by polymerization in (a) mass, at temperatures above 80 DEG  C. in the presence of 0.5-2 per cent of modifiers, e.g. lauryl, butyl or hexamethylene mercaptans, thiophenols, diisopropyl xanthogen disulphide.  Inhibitors, e.g. p-cresol or hydroquinone may be present; (b) solution in, e.g. methanol, ethanol, benzene, toluene with modifiers or inhibitors at temperatures above 120 DEG  C.; (c) suspension, in water containing lauryl alcohol and optionally the above-mentioned agents at 10-60 DEG C., or in water containing water miscible organic solvents, e.g. methanol, ethanol, propanol, isopropanol and acetone; (d) emulsion containing the modifying agents, Alternatively the polymers may be chlorinated to a chlorine content of 2 to 10 per cent by passing chlorine into a solution in methanol, chloroform, carbon tetrachloride or ethylene dichloride. Copolymers with vinyl chloride, acetate, butyrate, stearate, vinylidene chloride, styrene, indene, coumarone, acrylonitrile, methyl methacrylate may be similarly prepared or after-treated. Plasticizers, e.g. dibutyl phthalate and tricresyl phosphate, antioxidant or antiactinic agents may be added. The products may be extruded or cast to form rods, mono-filaments, yarns, tubing, sections and films, or pressed to a sheet between removable "Cellophane" (Registered Trade Mark) sheets, quenched and then deformed in one or more directions by stretch rolls, die drawing, rolling, pressing, or hydraulic or pneumatic distension. The filaments may be woven into fabrics, or braided, or plied into cables or slings.  U.S.A.  Specification 1,965,396 is referred to.ALSO:In the preparation of 2 : 3-dichlorobutadiene-1 : 3, 1 : 2 : 3 : 4-tetrachlorobutane prepared by passing chlorine and butadiene simultaneously into chloroform at low temperature and fractionally distilling, is dissolved in methanol and added with stirring to a 27 per cent methanol solution of potassium hydroxide, the product is filtered, poured into water, dried in presence of hydroquinone and distilled under reduced pressure.
Patent GB-276341-A (GB)
Title: Improvements in or relating to the purifying of copper and copper alloys
IPC: C22B15/14
Filed: 1927-08-17
Abstract: 276,341. British Thomson-Houston Co., Ltd., (Assignees of Valentine, I. R.). Aug. 18, 1926, [Convention date]. Dry processes of refining copper; alloys.-Molten copper or copper alloy is purified by the addition of a deoxidizing alloy of 90 parts of an allialine earth metal such as magnesium, with 15-10 parts of a metal, such as aluminium, adapted to modify the action of the magnesium. One part of the alloy may be added to about 320 parts of the copper or copper alloy at about 1200‹ C.
Patent GB-1005326-A (GB)
Title: Improvements in fluid dispensing devices
IPC: B05B9/04
Filed: 1964-05-26
Abstract: 1,005,326. Reciprocating pumps. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 28, 1964 [June 24, 1963], No. 21790/64. Heading F1A. [Also in Divisions B2 and B6] A piston comprising a ball 1 is moveable in a cylinder 2 in one direction by a solenoid coil 4 and in the other by a spring 3. The piston 1 is biased by the spring 3 to close an inlet 9 and is of such cross-section that liquid may flow between it and the cylinder. This clearance and the different speeds of the piston under the influence of the spring 3 and coil 4 results in liquid being drawn from the reservoir 10 and discharged at 8. Tubes connected to the outlets of several pumps may be arranged in a rectangle and be used for printing by suitable selective control of the pumps. By using coloured inks multi-coloured printing can be produced. It is stated that the apparatus is not in contact with the paper which is thus able to move freely and permits relatively high speed operation.
Patent GB-504091-A (GB)
Title: Thermionic amplifiers
IPC: H03F3/28
Filed: 1938-07-22
Abstract: 504,091. Valve circuits. LORENZ AKT.-GES., C. July 22, 1938, No. 21842. Convention date, July 22, 1937. [Class 40 (v)] In a class B amplifier the bias voltage of the output valves is obtained from the anode circuit of preceding valves. The 'push-pull output valves 3, 4 are supplied with anode current by valve G2 whilst valves 1 and 2 are supplied from valve G1. Grid bias for valve 1 is obtained across resistance R1, for valve 2 across resistances R1+R2 and for valves 3 and 4 from resistances R1+R2+R3. Additional grid circuit smoothing elements Dr, Cl, C may be provided if desired.
Patent GB-665791-A (GB)
Title: Treatment of synthetic gel cracking catalysts
IPC: C10G11/04
Filed: 1949-08-23
Abstract: Silica gel and silica-alumina, silica magnesia and silica-alumina-magnesia gel cracking catalysts that have become deactivated after repeated cycles of hydrocarbon cracking and combustion regeneration operations are reactivated by treating the regenerated catalyst with aqueous solutions of hydrogen fluoride or an aluminium salt such as the nitrate and hydrofluosilicic acid.  The hydrogen fluoride may also contain aluminium salts prepared for example by dissolving aluminium metal therein, and other acids such as hydrochloric or acetic may be added.  The acid solution preferably contains 0.5 to 8 per cent hydrogen flouride and the catalyst is treated with such an amount of solution so as to provide 0.4 to 10 per cent hydrogen fluoride by weight of the catalyst, which is then washed and dried.
Patent GB-1262602-A (GB)
Title: Improvements in and relating to fencing
Inventor: BURGESS ALAN THOMAS
IPC: E04H17/20
Filed: 1970-05-06
Abstract: 1,262,602. Fence posts. C. & C. MARSHALL Ltd. 6 May, 1970, No. 21928/70. Addition to 1,233,304. Heading E1B. Hollow plastics fence posts 10 having apertures to receive rails 14, 15 are reinforced by metal strips 20 engaging grooves formed between ribs 18, and 19 on opposed faces. In modifications a cruciform reinforcement engages in similar grooves in four opposed faces.
Patent GB-706676-A (GB)
Title: Article supporting means
Inventor: KNAPP ALFRED PAUL
IPC: F22B37/20
Filed: 1952-09-01
Abstract: 706,676. Brackets. KNAPP MILLS, Inc. Sept. 1, 1952, No. 21942/52. Class 52(5) [Also in Group X] A supporting device comprises a post 2 L-shaped in cross-section, on which is slidably mounted a gripping member 3 having a recess 8 extending therethrough complementary to but slightly larger than the post 2. When a weight is applied to the supporting portion 6 the gripping member tilts and the edges of the walls of the recess 8 bite into and grip the outer surfaces cf the post. To improve the gripping action the device may be made of hard metal coated with lead. The gripping member 3 has small apertures 17 in the walls 13, 14 adjacent the recess to receive wedges 18 to hold the gripping member in position. Similar apertures 19 may be provided in the socket portion of a base 1 to hold the post in position. As shown in Fig. 5 a pipe coil is supported by the adjustable gripping members on three posts. An additional gripping member 20 mounted in an inverted position on the post holds the pipe coil against upward movement. The post may be of W or V cross-section instead of being L-shaped. The walls of the opening 8 may extend obliquely to the surface of the gripping member.
Patent GB-320954-A (GB)
Title: Improvements in machines for winding tape and the like on to strip or like material
IPC: D07B7/14
Filed: 1928-07-28
Abstract: 320,954. British Thomson-Houston Co., Ltd., and Satchell, H. L. July 28, 1928. Cores, covering by winding.-In a machine for winding tape &con to strip or like material means are provided for applying a brake simultaneously at two or more points in the mechanism when the tape breaks. The brake-releasing means comprises a pivoted member 4 around which the tape is guided and which, upon breakage or undue slackness of the tape, swings outwardly by centrifugal action so that it releases a plunger 6 which engages a trip member 8. To facilitate starting up of the machine the member 4 is held in engagement with the plunger 6 by a second plunger 7 controlled by a weak spring.
Patent GB-1497647-A (GB)
Title: Device for the treatment of a web with a liquid
IPC: D06B3/20
Filed: 1976-05-27
Abstract: 1497647 Washing textile webs E KUSTERS 27 May 1976 [31 May 1975] 21953/76 Heading D1L Textile web 2 is washed in loose transverse folds and simultaneously kneaded by passage through channel 40 defined between a web supporting base 6 and a permeable oscillatory member 9, the channel being disposed below the level 8 of the wash liq. and member 9 being freely suspended on a rotatable eccentric shaft 13 by struts 11. As shown in Fig. 2 the base is non-permeable and forms a trough 7 of liq. with a part-circular cross-section. In an alternative arrangement [Fig. 3 (not shown)] the base is permeable and the trough is defined by a curved floor 25. In this alternative the web is conveyed over the base (6') by an endless permeable belt (26). The web may be wetted prior to entry into the channel 40 by sprays 24. In Fig. 2 web entry is aided by a pair of grooved rollers 17, 18 and a cage formed by a series of rods 31 extending longitudinally into the grooves from channel entrance 19. The permeable elements may be formed by parallel rods.
Patent GB-865725-A (GB)
Title: Improvements in or relating to magnetic focusing systems for travelling-wave tubes
IPC: H01F7/02
Filed: 1958-07-09
Abstract: 865,725. Travelling wave tubes. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 9, 1958 [July 11, 1957], No. 22033/58. Class 39(1). A travelling wave tube has a 'uniform field' magnetic focusing system comprising two apertured polygonal soft iron pole pieces 3, Fig. 4, to each of which is attached a main set of radially arranged permanent magnet rods 1 the rods of one main set being radially magnetised in the opposite radial direction to the rods of the other main set the outer ends of the rods being connected by soft iron rod members 4 and an additional set 5 (2 sets shown) of radially arranged and radially magnetised permanent magnet steel rods adjacent one of the two main sets the outer ends of the rods of the additional set being disposed against the soft iron members 4 and the inner ends being free the field strength and direction of magnetisation of the rods of the additional set being such as to inhibit along at least part of the system variations in the strength of the axial magnetic field. To make the field larger at the output end of the travelling wave tube the main magnets at that end are made slightly longer and thicker than those at the input end, Fig. 5 (not shown). A pile of hard paper and mumetal rings 6, 7 may form a composite tube serving approximately the function of a flux guide. The input and output waveguides extend between the composite tube and the pole pieces.
Patent GB-1070336-A (GB)
Title: Apparatus and method for testing coated sheets
IPC: G02F1/03
Filed: 1965-05-25
Abstract: 1, 070, 336. Photo-electric inspection of coatings. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 25, 1965 [June 29, 1964], No. 22033/65. Heading G1A. [Also in Divisions G2 and H4] The continuity of a reflective coating on a transparent strip is detected by reflecting light off the coated strip and detecting when, in the absence of the coating, interference occurs between light reflected from the two surfaces of the strip. White light from a source 22 is polarized at 24 before entering a monochromator 25 producing an output beam the wavelength of which varies cyclicly at high frequency. This beam is scanned across the strip by a mirror drum 27 or an electro-optic light deflector. Light reflected by the coating is of substantially constant intensity and gives a D. C. output from the photo-cell 62, but when the coating is missing, an A. C. signal results as the wavelength of the incident beam passes through those wavelengths at which constructive and destructive interference occurs between the surfaces of the strip. A high-pass filter 64 detects this A. C. signal and operates a defect marker 32 through an appropriate delay 31. The mirror drum 27 may be omitted and the strip scanned by a linear beam of light transverse to strip. The monochromator may operate utilizing the rotary dispersion of an optically active crystal in combination with an electrooptical rotator as polarizer or analyzer. (See Division G2).
Patent GB-854724-A (GB)
Title: Improvements in or relating to aprons for textile machinery
Inventor: SADLER BRYAN HUGH
IPC: B29C31/00
Filed: 1958-07-10
Abstract: 854,724. Laminates. FENNER & CO. Ltd., J. H. July 1, 1959 [July 10, 1958], No. 22117/58. Class 140. A drafting apron comprises inner and outer layers of rubber, rubber-like polymers such as butadiene-acrylonitrile copolymer, or plasticized polyvinyl chloride, and an intermediate reinforcement of circularly knitted cotton, rayon, nylon or other fabric bonded to both layers. As shown, a tube 12 of rubbery material, formed by extrusion or wrapping material around a mandrel, is mounted on a mandrel 14 and a knitted tubular fabric slipped over it and drawn tight. An outer rubbery tube 16 is then applied over the fabric, by extrusion, wrapping, or, as shown, by fitting one end of the tube over the fabric and expanding the tube to enable it to be slid into place by compressed air supplied through a plug 18. The tubes are then trimmed to length, wrapped in tape, vulcanized, unwrapped, externally ground to size before cutting to length. Specification 740,504 is referred to.
Patent GB-1059192-A (GB)
Title: Sheet feeding apparatus
Inventor: VOLLRATH KARL-HANS
IPC: B65H3/36
Filed: 1965-05-25
Abstract: 1,059,192. Feeding sheets. DRUCKMASCHINENWERKE LEIPZIG, VEB. May 25. 1965, No. 22146/65. Heading B6B. In sheet feeding apparatus wherein each sheet is fed by two spaced suction nozzles 10, the stroke of one of the nozzles can be shortened or lengthened during the operation of the apparatus, so that the front edges of the sheets can be aligned at right-angles to the direction of feed. The nozzle 10 having a variable stroke is adjustably mounted on a rod 9 which is pivoted at the end at 8 to a guide lever 18 freely mounted on a rock shaft 3, and is pivoted at an intermediate point 8 to a rod 13 which is pivoted to a rocker 4 fixed to a rock-shaft 2. A guide slot 15 in the rod 13 has a pivot pin therein which can be moved along the slot by a Bowden cable, and one end of a lever 14 is mounted on the pin, the other end 16 of the lever being pivoted to a rocker 17 fixed on a rock-shaft 3. Thus, when the shafts 2, 3 are rocked by cam means, the nozzle 10 is moved vertically by the shaft 2 and horizontally by the shaft 3, and follows a rectangular path. By the above arrangement, adjustment of the pin in the slot 15 by the Bowden cable has no effect on the forward, sheet-releasing position of the nozzle 10, but in the rearward sheet-taking position shown in Fig. 4, the nozzle position can be varied. The other nozzle 10, Fig. 3 (not shown), is adjustably mounted on a rod 9 which is pivoted at the end 8 to a rocker 12 fixed to the rock-shaft 3, and at an intermediate point 8 to a rod 7 pivoted to a rocker 4 fixed to the rockshaft 2, and has a fixed stroke. In Fig. 2 (not shown), there is a duplicate arrangement of nozzles 10 for feeding sheets from two piles simultaneously. The nozzles 10 can either be used for separating sheets from a pile and forwarding them to other feed means, or for forwarding sheets which have been lifted from a pile by other means.
Patent GB-601623-A (GB)
Title: Improvements in collapsible baskets, cartons and the like
IPC: B65D6/18
Filed: 1945-08-29
Abstract: 601,623. Collapsable cardboard &c. baskets. SAWKINS, W., and BLAND, H. BARKER-. Aug. 29, 1945, No. 22200. [Class 18] A collapsable basket or container is formed by creasing and folding a rectangular blank, Fig. 1, to form a bottom 1, side walls 5, 5<1>, and end walls 6, 6<1> together with corner pieces such as 14 which are folded inwardly along the lines 4 and secured by metal clips 7, 7<1> attached by stapling or riveting to the end wall. Metal or fibre board plates 9, 9<1> are secured to the sides by rivets or staples and provided with slits 11 to accommodate the hooked ends of a rigid handle. Alternatively, the sides of the basket may have slits to receive the key-shaped ends of a flexible handle 12, Fig. 8, which may lie flat on the blank when the basket is collapsed. A cover, Fig. 7 (not shown), with an overlapping skirt, centrally cut away to accommodate the ends of the handle and plates 9, 9<1> and with one or more end tabs for insertion between the triangular corner flaps, may be provided. The basket may be treated with a formaldehyde solution and may have ventilation holes in the sides.
Patent GB-751915-A (GB)
Title: Improvements in gin poles
IPC: E21B15/00
Filed: 1954-07-29
Abstract: 751,915. Gin poles for raising derrick masts. MOORE CORPORATION, L. C. July 29,1954 [March 12, 1954], No. 22213/54. Class 78 (4). A gin pole 11, 14 is unfolded from the reclining position shown in full lines to the erect position shown in broken lines by a line 20 which passes around a pulley 22 to the rear of the shoes 16 for the rear legs 14 and then forwardly. In the arrangement illustrated a sling 33 which subsequently serves to raise the mast 1 is looped over the hook of the travelling block 5 and passes over pulleys 35 on the mast and around pulleys 32 on the gin pole to anchorages 34 on the mast: this sling restrains the movement of the gin pole as it is raised so that the lower ends of the rear legs 14 clear the draw-works 8 during their travel to the shoes 16 which are disposed several feet above the base 4. Links 37 limit the spread of the legs of the gin pole. The line 20 is secured to the cathead 21 and passes from the pulley 22 around pulleys 23, 27 on one rear leg 14 of the gin pole and then transversely across the gin pole and over similar pulleys on the other leg to an anchorage adjacent the shoe 16 on the opposite side. The rear legs are joined by a transverse member near the level of the pulleys 27 while the front legs 11 are joined at their upper ends by a member carrying the pulleys 32 and a central pulley 31 for the drilling line 6.
Patent GB-943589-A (GB)
Title: Improvements in or relating to the recovery of aluminium
IPC: C22B21/00
Filed: 1962-06-08
Abstract: In a sub halide distillation-process for the recovery of aluminium from aluminium-containing metal a pool of said metal is held in a contacting zone and a shower of droplets is mechanically impelled up from the pool into the space above it where the droplets are contacted by the aluminium trihalide (preferably trichloride) vapour at 1000-1400  DEG C. The pool may be heated by an electric arc or electric resistance heating elements (preferably shielded from contact with the shower of droplets).