baber/WOPTO huggingface dataset:
Patent GB-825700-A (GB)
Title: Improvements in the manufacture of structural panels
Inventor: HENDERSON GABRIEL JOHN
IPC: B28B7/18
Filed: 1955-02-07
Abstract: 825,700. Moulding plaster panels. PETRADENE Ltd. Feb. 7, 1956 [Feb. 7, 1955], No. 3591/55. Class 87(2). [Also in Group X] Panels are made by a method which comprises the steps of forming a mould from a waterproof resilient and flexible material, with pegs projectly upwardly from the base of the mould, pouring plaster slurry into the mould and allowing it to set, stripping the mould from the cast panel and allowing the cast panel to dry and harden. The synthetic resin known under the Registered Trade Mark "Welvic" is suitable for the mould. A suitable section for the mould is shown in the fragmentary view, Fig. 3, where the inside corners of the cavity are sloped at 12 to produce bevels 6 on the panel, Fig. 4. The mould may be produced from a master pattern made e.g. of steel. The pegs 11 produce holes 7 in the panel and may be reduced in diameter as at 13 to form shoulders against which bolt heads may bear. A bush 15 of e.g. aluminium may be placed over the reduced part and its end provides the bearing surface when incorporated in the casting. Before the slurry sets, reinforcement, e.g. of galvanised iron or stainless steel may be arranged between the pegs 11 and it may be in the form of. a welded grid. Instead of or in addition to. plain wire reinforcement, resistance wire 28, Fig. 6, strung across a frame 24 over insulating hooks 27 may be incorporated for electric heating; holes 26 in the frame fit over the pegs 11. A hardening agent and fibrous reinforcement, e.g. sisal chippings, may be added to the slurry, also material to lighten the plaster, e.g. vermiculite. The mould, being flexible, is easily stripped from the cast panel which is then allowed to dry, secured back-to-back with a similar casting to reduce warping. The front surface 3 may have fine parallel grooves, according to the master pattern, to influence the acoustic properties of the panel. The holes 7 also influence the acoustics and, if they pass right through the panel, may be used for the fixing bolts. Alternatively, the panel may be fixed to a surface by adhesive, temporarily held against the surface by the suction effect of wet plaster while the adhesive sets. Specially shaped plates with flanges embedded in the rear surface of the panel may be incorporated during the casting, which plates may have sockets for clips which enable the panel to be screw-clamped to a guide. A backing may be applied of sound absorbing or heat insulating material e.g. glass fibre. The edges may be shaped to interlock with those of similarly formed adjacent panels.
Patent GB-1374528-A (GB)
Title: Camera with a power-driven film winding device
IPC: G03B17/42
Filed: 1972-01-26
Abstract: 1374528 Motor-driven cameras NIPPON KOGAKU KK 26 Jan 1972 [27 Jan 1971]  3642/72 Heading G2A A camera having a motor for film winding and shutter charging has control means for energizing a high-speed motor driving circuit for high-speed repetitive photo-taking, and means for changing the control to a low-speed motor driving circuit for single shot photography, the motor stopping in a predetermined position after film wind and shutter charging has been completed. Fig. 2 shows the mechanism after film wind and shutter charge has been started, under the control of a low-voltage circuit including the battery El. Gear 11 on the motor shaft drives gears 12, 13, 14, gear 14 being integral with a cam 15 and flange 16 which can slide and rotate on a shaft 18. As cam 15 rotates in the direction of the arrow its camming surface engages a roller 23 on a shaft 24 integral with shaft 18, hence rotating shaft 18 and a bevel gear 25 also integral therewith. Gear 25 engages with another bevel gear 26 and hence rotates shaft 27, which winds on the film and charges the shutter. After this has been completed shaft 27 is restrained from further, rotation so that continued rotation of cam 15 causes it to be pushed to the right along shaft 18. A spring-loaded lever 28 with one end 28a bearing against flange 16 is accordingly pivoted clockwise by its loading spring 28, so that its other end 28b changes over a switch Sl from contact S1-1 to S1-2. This short circuits the motor, stopping it quickly. When the operating button 4 is depressed, a circuit is completed including both batteries El and E2, so that the motor is operated at a high speed. Cam 15 now moves clear of roller 23, so that it slides to the left under the action of a spring 17. This leftward movement of flange 16 releases the shutter (by conventional means not shown). Lever 28 is thus pivoted anti-clcokwise, so changing over switch Sl once more. As button 4 is depressed, it pushes down a slide 30 which engages a pin 33 controlling two further switches S2 and S3 in circuit with the batteries and motor, in such a way that as long as button 4 remains depressed, a high voltage circuit including both batteries enables continuous high-speed phototaking to occur. When button 4 is released, slide 30 is also released to move upwards, so changing over switches S2 and S3, and reverting to the low voltage circuit including only battery El, as described above, which stops the motor after film winding and shutter charge. Figs. (not shown) 3-6 are modified forms of the control circuit, in one of which Fig. 4 (not shown), a separate operating button (4') is provided for single-frame phototaking.
Patent GB-1510393-A (GB)
Title: Microfilm reading apparatus
IPC: G03B21/11
Filed: 1977-01-26
Abstract: 1510393 Microfilm readers B L RUSSELL and E V PIERCY [trading as MICROFILM ENG CO] 26 Jan 1977 [29 Jan 1976] 03643/76 Heading G2J A microfilm reader has a mirror 2 in the casing 1 to reflect an image on to screen 3, and means, such as a motor-driven cam 9, to tilt the mirror to vary the position of the image on the screen. In addition to the projection lens 5, a supplementary lens may magnify specific areas. A switch 11 may change the illumination of lamp 4 when magnification is changed.
Patent GB-734582-A (GB)
Title: Improved loader for coal and other mines
Inventor: JACKSON DAVID
IPC: E21F13/06
Filed: 1952-02-12
Abstract: 734,582. Screw conveyers. MAVOR & COULSON, Ltd. April 28, 1954 [Feb. 12, 1952], No. 3656/52. Class 78 (1). [Also in Group XXI] A mining machine 6 of the kind provided with a cutter chain 7 carried by a jib 8 is provided with a loader 12 which is arranged transversely behind the cutter and extends from a point adjacent to the newly-cut face C to a point adjacent to the face conveyer 15. The loader includes a casing 11 which is open along its leading side and has a vertical wedgelike deflector 13 at its inner end. The cutter may be fitted with superimposed jibs of such height that no obstructive coal is left in the path of the casing. When the conveyer 15 is of the belt type, the loader 12 is horizontal, but when the conveyer is of the scraper type, the loader may be inclined to deliver over its side frame or provided with a ramp at its end for this purpose. The cutter chain and jib may be replaced by a horizontal cutter bar.
Patent GB-1014913-A (GB)
Title: Polypropylene-containing compositions
IPC: C08L23/12
Filed: 1964-01-28
Abstract: Polypropylene containing compositions of improved dyeability are obtained by the addition of a minor proportion of (i) a linear polyamide and not more than an equal weight of (ii) a different linear copolyamide of which 5 to 35% of the units are of formula <FORM:1014913/C3/1> in which A and B are -CO- or -NH-, and M is an alkali metal. The polypropylene may be of melt viscosity 0.1-8. Specified polyamides are: (i) polycaprolactam, polyhexamethylene adipamide, a copolyamide from hexamethylene diamine adipate and sebacate, and a copolyamide from hexamethylene diamine adipate and caprolactam; and (ii) the product derived from hexamethylene diamine m-(sodium or potassium sulpho)-isophthalate and hexamethylene diamine adipate.  The compositions may be dyed with disperse, basic, acidic or metallized dyestuffs, and may be formed into yarn, fibre or film.
Patent GB-432907-A (GB)
Title: Improvements relating to inflatable mattresses or air beds
IPC: A47C27/08
Filed: 1934-02-06
Abstract: 432,907. Air mattresses. BLACK, D. C., 113, South Street, Greenock, Renfrewshire. Feb. 6, 1934, No. 3841. [Class 52 (iv)] An air bed has its body rest longitudinally compartmented into intercommunicating chambers, the outer pair 14 of which distend to a greater extent than the intermediate chamber or chambers 15. The latter are preferably provided with ties, eyelets or like means to restrict their expansion. The pillow is pre. ferably separately inflated.
Patent GB-1080821-A (GB)
Title: Pneumatic twin wet-process jig
IPC: B03B5/24
Filed: 1965-01-28
Abstract: 1,080,821. Jigs. SCHUCHTERMANN & KREMER-BAUM FUR AUFBEREITUNG A.G. Jan. 28, 1965 [Sept. 1, 1964], No. 3884/ 65. Heading B2H. In a pneumatic twin wet-process jig for grading minerals, e.g. pit coal and having pulsation chambers 8 disposed below the jig screens 7, Fig. 2 (not shown), a receiver 3 for the compressed-air extends between the two settling tanks 1, 2 in the longitudinal direction of the jig and serve as a support for the air-control valves 9, 10 secured thereto. The tanks are divided by partitions 4 into settling chambers 6 in which the pulsation chambers 8 are provided. The receiver 3 may be constructed as a separate structural unit, or, as shown, is formed by welding walls 11, 12 between the tanks. The valves 9, 10 are arranged in the rows and communicate with the receiver 3 via pipes 13, 14 and with the chambers 8 via lines 15, 16 which pass through the receiver and are connected to the chambers 8 by resilient collars 17, 18. The valves connect the chambers 8 alternately with the receiver through the lines 15, 16 and with the atmosphere through pipe connections 19, 20. The actuation of the valves 9 is displaced in phase relatively to the actuation of the valves 10.
Patent GB-235110-A (GB)
Title: Improvements in or relating to declaration indicators for the game of auction bridge
IPC: A63F1/18
Filed: 1925-02-11
Abstract: 235,110. Jones, S. A. Feb. 11, 1925. Indicators, declaration.-A device for indicating the declaration made in the game of auction bridge comprises a base having an inclined face plate d extending along one side, apertures e in the face plate, a series of discs f pivotally attached to the back of the face plate, and figures and symbols imprinted on the disc, the discs being arranged to extend beyond the upper edge of the face plate to permit of manipulation by the fingers. The edges of the discs may be milled.
Patent GB-212713-A (GB)
Title: A new or improved implement or device for scraping saucepans and similar vessels
IPC: A47L17/06
Filed: 1923-02-09
Abstract: 212,713. Koeune, F. T. Feb. 9, 1923. Scrapers, pan and like.-A pan scraper is formed from a sheet A of metal or other material, one edge B being rounded to form a handle and the opposite edge C being sharpened. A hole D is provided for the attachment of a string for hanging up.
Patent GB-1217246-A (GB)
Title: Improvements in or relating to the formation of extrusions
Inventor: OVERDIEP WIGLE SJOERD
IPC: B29C48/395
Filed: 1968-01-25
Abstract: 1,217,246. Extruding thermoplastics rods. ALGEMENE KUNSTZIJDE UNIE N.V. 25 Jan., 1968 [27 Jan., 1967], No. 3980/68. Heading B5A. In the extrusion of thermoplastics rods, the process is rendered intermittent by the provision of a draw off device which applies an increasing longitudinal pull on the extrude in a direction away from cooled die 3 until material which has solidified therein slips through the die, the pull then immediately decreasing to a minimum valve, possibly zero, prior to a repeat of the cycle, see Fig. 2 (not reproduced). As shown, the draw-off device comprises a frame 14 on which are mounted driven rollers 5-10, with rollers 5, 7 and 9 being urged towards rollers 6, 8 and 10 respectively by compreased-air cylinders 11-13. Frame 14 is mounted on resilient blocks 15, 16 to allow longitudinal displacement and is connected to the extruder barrel via rods 17-20 and an intermediate coupling comprising compression springs 24, 26. In operation, at the start of a cycle, rollers 5-10 are rotated to produce a movement of frame 14 towards die 3. This movement causes compression of springs 24, 26 and hence an increase on the pull on extrudate 4. At a certain value of pull the extrudate slips through die 3, frame 14 moves to the right and springs 24, 26 are relieved. Preferably the rods formed are greater than 30 mm. in diameter and it is stated that molten material from the heated barrel of the extruder passes to cooled die 3 where an increasingly thick skin is formed, the internal pressure of molten material on the skin preventing movement through the die. Preferably the amount of slippage which occurs is between 1 and 20 mm. at a time. The thermoplastics material preferably has a modulus of elasticity greater than 10,000 kg./cm.2 at 20 C. and the process is particularly intended for the extrusion of thermoplastics having a basis of polyethylene terephthalate, e.g. mixtures thereof with polypropylene or poly-4- methylpentene, and the mixtures described in specification 1,196,290. Other thermoplastics mentioned are polyphenylene oxide, polyacetal polycarbonate and ABS polymers.
Patent GB-730867-A (GB)
Title: Improvements in or relating to an injector for wax or similar thermoplastic materials
Inventor: HORVAT GYULA
IPC: B29C45/23
Filed: 1952-02-14
Abstract: 730,867. Injection-moulding apparatus. GOLD, SILVER & JEWELLERY INDUSTRIES, DESIGN & RESEARCH CENTRE FOR. May 13, 1953 [Feb. 14, 1952], No. 3981/52. Class 87 (2). Apparatus for filling flexible moulds with wax or similar thermoplastic material comprises, Figs. 1 and 3, a reservoir 1 for the wax, the reservoir being a closed vessel having means for admitting thereto air or gas under pressure. This internal pressure forces the (molten) wax up through a tube 7, which is preferably arranged obliquely as shown, to a nozzle 8 that includes a valve 14. The valve is normally held in the closed position shown, by a spring 20, but is opened by pressing the mould downwardly on a part 9. The means for admitting air under pressure may be a non-return valve (not shown). The reservoir is heated by a thermostaticallycontrolled electrical element 24 secured to the base thereof. A safety valve 6 is incorporated in a cap screwed on a filling aperture. A thermometer holder 27 is provided. The reservoir is secured to a support 22. Fig. 4 shows a modification in which the nozzle 30a is disposed in the side of the reservoir, a gas-pressure-admitting connection 7a includes a safety valve 9a, the thermometer holder is incorporated in the filler cap 12a, and the heating element 15a is protected by a plate 17a. In both forms of apparatus the gas pressure may be derived from an air pump or from a pressure-reducing valve on a compressed air or nitrogen cylinder: the pressure may. be 10-12 pounds, p.s.i.
Patent GB-752806-A (GB)
Title: Non-metallic tubes
Inventor: CUMING GERALD BLAIR
IPC: F16L9/16
Filed: 1954-02-11
Abstract: 752,806. Non-metallic tubes. T.I. (GROUP SERVICES), Ltd. Nov. 22, 1954 [Feb. 11, 1954; May 7, 1954], Nos. 4011/54 and 13353/54. Class 99(2). In a tube of the kind made by helically coiling on a mandrel glass or other non-metallic material a in a filamentary or yarn-like condition, the filaments being bonded together by a liquid or powdered solid substance which can be hardened by drying or heat treatment, the tube has incorporated therein, during the manufacturing process, an impermeable layer b of paper situated at the inner surface of the tube, or between one or more layers of the filamentary material or in each of such positions. The layer b or layers, may comprise paper in strip form helically wound onto a mandrel prior to, or concurrently with, the application of the filaments a, and be impregnated or coated with a bonding material. The filaments may be in single, bunched or ribbon form and comprise cotton, wool or nylon or other atrificial fibres, and prior to coiling on the mandrel passed through a bath of bonding substance which will harden naturally on drying, or is hardenable by polymerisation under the action of heat.
Patent GB-229485-A (GB)
Title: Improvements in or relating to rheostats
IPC: H01C10/40
Filed: 1924-02-16
Abstract: 229,485. Bowles, G. M. Feb. 16, 1924. No Patent granted (Sealing fee not paid). Variable resistances. - A contact member 23 is moved over a resistance wire 7, wound on an ebonite sleeve 6 by means of an archimedean screw 11 formed by twisting a flat-sided rod, for example of square section. The pitch may be such that the movement of the contact member 23 over the resistance 7 may be effected by one complete turn of the screw. The ebonite sleeve 6 is mounted on a framework formed by two discs 1, 2 held apart by three spacing- members 3, 4, 5. The screw 11 is formed at its upper end with a plain cylindrical portion 12 passing through a bearing 13 and provided at its upper end with a knob 17. The lower end of the screw 11 engages in a depression 19 in a flat spring 18, which is depressed if the rod 11 is over-screwed. Engaging the twisted rod 11 is a U-shaped element 20, the two limbs of which are formed with holes corresponding with the cross-section of the rod 11. Riveted to the member 20 is the contact member 23, which is shaped so as to engage the spacing members 3, 4 and is bent to a U-shape at its end and formed with a depression 25 for making contact with the resistance wire 7. One end of the resistance wire 7 is connected by a screw 8 to the spacing- member 5, the other end being connected to a terminal 9. A second terminal 10 is connected to the end of the member 5.
Patent GB-470186-A (GB)
Title: Improvements in or relating to cathode-ray tubes and like electron discharge devices
IPC: H01J29/86
Filed: 1936-02-10
Abstract: 470,186. Cathode ray tubes. FERNSEH AKT.-GES. Feb. 10, 1936, No. 4052. Convention date, Feb. 8, 1935. [Class 39 (i)] In a cathode-ray tube the neck comprises three concentric tubes 9, 10, 11, the cathode-bearing pinch 15 being sealed to the end of the inmost tube ; a concentrating coil 17- with gaps 19 in its iron casing 18-is housed between the outer and intermediate tube. Rods 12 sealed to the inner joint between the tubes support electrodes, which are spaced from the cathode and Wehnelt cylinder by rods 13 placed in position before sealing. Two known forms of tube with magnetic coil, but without concentric tubes are also described.
Patent GB-1389562-A (GB)
Title: Surface hardening of titanium and its alloys
IPC: C23C8/36
Filed: 1972-01-28
Abstract: 1389562 Nitriding titanium SOC NOUVELLE DES ACIERIES DE POMPEY and LABORATOIRE DE PHYSIQUE DE L'ETAT METALLIQUE 28 Jan 1972 [29 Jan 1971] 4212/72 Heading C7U Titanium or its alloys are subjected to treatment by ionic nitrogen either at 850‹-1000‹C followed by tempering at 500-600‹C, or directly at 500- 600‹C. A preferred process involves the use of a plasma stream of pure nitrogen, particularly for 1 to 15 hours at 850-1000‹C.
Patent GB-925831-A (GB)
Title: Improvements in winding members for electrical rotating machines
IPC: H02K3/26
Filed: 1960-11-05
Abstract: 925,831. Dynamo-electric machines having planar air gaps and printed windings. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. Feb. 5, 1960 [Feb. 5, 1959], No. 4221/60. Class 35. In a winding member for an electrical rotating machine having an annular air-gap of which at least the magnetically active part is flat, the winding being formed by flat conductors secured to an either insulated or insulating carrier member 1 or 8 and consisting of radial intermediate active portions 2 and 3 or 9 interconnected by head spool portions 4 . . . 7 or 10, 11, the head-spool portions are thicker in the axial direction than are the active portions. Such a winding member may be included in the rotor, or stator, or, as shown, both, and the conductors may be printed. The members 1, 8 are, respectively, insulating, and conducting and magnetic, and an insulating sheet 20 is interposed between the member 8 and winding 9 . . . 11. A plate 14 supports a magnetic yoke 13. Instead of the series wave winding shown the rotor may have a squirrel-cage winding. Specifications 874,394, 888,515 and 902,295 are referred to.
Patent GB-215823-A (GB)
Title: Improvements in or relating to the manufacture of pressed or moulded articles from compositions containing cellulose derivatives
IPC: C08L1/08
Filed: 1923-02-14
Abstract: 215,823. Dreyfus, C. Feb. 14, 1923. Plastic compositions containing cellulose esters, ethers, &c.-Organic cellulose derivatives such as cellulose acetate, ethers &c. are melted at or about atmospheric pressure with one or more plasticising agents, and with or without resins, dyes, fillers &c., the melt is allowed to solidify and is ground to powder, and the powder, with or without further working on heated rolls, and with or without further additions, is moulded under heat to form sound records, electric insulators &c. According to an example, 100 parts of cellulose acetate and 45-55 parts of paratoluene sulphonamide are melted in a pot and the mass is run into slabs, solidified and ground. 180-200 parts of filling materal, as a mixture of lampblack. red oxide of iron, and barytes, are added, and the mixture, preferably after working up on heated rolls is hot moulded into gramophone records &c. In other examples, the plasticising agents described in Specifications 132,283. 133,353, or 154,334 are employed. Specifications 174,660 and 179,208 also are referred to.
Patent GB-433460-A (GB)
Title: Improvements in or relating to antiseptic isinglass plaster
IPC: A61L15/58
Filed: 1934-02-09
Abstract: Isinglass for use in making plasters is prepared by immersing dried fish sounds in water, bringing the mass to the boiling point to render it sterile, and then adding an antiseptic such as phenol, cresol, oxyquinoline, corrosive sublimate or mercurochrome.  Before addition of the antiseptic the mass may be filtered and decolorized by means of animal charcoal.  Pigments may also be added.  Reference has been directed by the Comptroller to Specification 9987/96, [Class 81], and other documents.ALSO:Isinglass plasters are prepared by immersing dried fish sounds in water, bringing the mass to the boiling point to render it sterile, adding an antiseptic, such as phenol, cresol, oxyquinoline, corrosive sublimate or mercurochrome, and immediately spreading the mass on fabric or other backing to form the plaster, which is then dried, cut to shape, and rolled on storage reels.  Before addition of the antiseptic the isinglass solution may be filtered and decolorized with animal charcoal. Antiseptics containing pigments may be employed or a separate pigment may be added.  Reference has been directed by the Comptroller to Specification 9987/96, [Class (81)], and other documents.
Patent GB-158888-A (GB)
Title: Improvements in or relating to graphitizing preformed carbon bodies
IPC: H05B31/16
Filed: 1921-02-07
Abstract: 158,888. Szarvasy, I. July 18, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Carbon; hydrogen.-Preformed carbon bodies such as carbon electrodes are graphitized by heating in an atmosphere of methane to a temperature at which the methane decomposes; the heating may be carried out externally, for instance by gas, or internally electrically, the carbon bodies being embedded in carbon " grit " previously produced by decomposing methane. The carbon " grit " increases in quantity during the process and may be used as raw material for the production of carbon electrodes. By dilution of the methane with indifferent gases the temperature required for the graphitization is lowered.