baber/WOPTO huggingface dataset:
Patent GB-573758-A (GB)
Title: Improvements in or relating to covering materials for aircraft frame structures
IPC: B64C3/26
Filed: 1942-08-06
Abstract: 573,758. Coated fabrics; compound sheet materials. IOCO RUBBER & WATERPROOFING CO., Ltd.. and RYAN, A. Aug. 6, 1942, Nos. 11011 and 17233. [Class 140] [Also in Group IX] A covering material for aircraft frame structures is made by coating a fabric woven with straight corrosion resisting metal wires in one direction and textile threads in the other, first with a flexible adhesive material to unite the wires and threads at their crossing points, and finally with an outer covering or coating of rubber, rubber-like, or plastic material having a smooth continuous outer surface formed by hot-pressing or calendering. The flexible adhesive may be of resinous, glutinous, or rubber-like character, a solution of casein being specified. The wires may be of stainless steel, or rendered corrosion-resisting by tinning or lacquering. The threads may be of cotton, flax, silk, rayon, nylon, or polyvinyl resin, may be of fire-resisting material such as glass fibre yarn, polyvinyl chloride, or a copolymer of vinyl chloride and vinyl acetate plasticized with tricresyl phosphate, or may be of combustible material coated with polyvinyl chloride plasticized with tricresyl phosphate. A fabric is woven with cotton wefts, tensioned stainless steel warp wires, and marginal textile warp threads to provide a textile selvedge, and lengths cut therefrom are fitted on two rows of pins or clips which hold the fabric stretched to full width over steam heated platens while a coating of casein solution is applied and dried. The treated fabric in which the wefts and warps adhere at the crossing points is then coated with a layer of plasticized polyvinyl chloride or copolymer of vinyl chloride and vinyl acetate applied as a preformed film or as a paste, and pressed between a polished stainless steel sheet and a resilient pad of rubber or rubber-coated cloth in a multiple platen press. Alternatively the fabric may be coated and pressed in a continuous operation without cutting into lengths, the coating being applied in paste form between a doctor knife and a roller, and the coated fabric pressed between a hot roller and a continuous rubber-coated belt. In weaving the fabric, the wires are led from braked bobbins on a creel, over guides, and threaded through a reed provided at the back of the loom in addition to the beating-up reed, after which they are passed under and over rollers in parallel juxtaposition to the weaving position. Two or more of the rollers may be pressed together by a weighted lever attachment or a roller may "float" on the full width of the wires. A carrier weight of staple-like form may be hung on each wire before it passes over the first guide. Specification 367,288 is referred to.
Patent GB-1506807-A (GB)
Title: Closed continuous-flow centrifuge rotor
IPC: B04B1/02
Filed: 1976-03-19
Abstract: 1506807 Centrifuge for blood separation UNITED STATES ENERGY RESEARCH & DEVELOPMENT ADMINISTRATION 19 March 1976 [25 April 1975] 11068/76 Heading B2P  A continuous flow centrifuge for separating whole blood into red and white cells and plasma comprises a rotor 1, Fig. 2, rotatable about a vertical axis and having a generally parabolic cavity, a closure 2 for the rotor, a generally parabolic core 4 provided with an axially extending central whole blood inlet passageway 8 and disposed substantially concentrically within the cavity with its peripheral surface 18 spaced apart from the interior surface 12 of the rotor to define a whole blood separation chamber 32 in liquid communication with the passageway whereby whole blood is centrifugally separated into concentric zones of red cells, white cells and plasma within the substantially axially extending portion of the chamber 32, means 30, Fig. 3 for extracting the plasma, a first annular fluid splitter blade 14 having radially inner and outer surfaces terminating at a common radius to define a sharp annular fluid splitting edge disposed between the core 4 and the rotor 1 for separating the red and white blood cell zones at their interface, and a second similar annular fluid splitter blade 20 having a sharp annular fluid splitting edge disposed between the core and the rotor and radially inwardly of the first blade 14 for separating the white blood cell zone and the plasma zone at their interface. A plurality of septa 7, 10 are disposed in the whole blood inlet passageways 8, 5 in the closure 2 and core 4 respectively to cause the entrant blood to rotate substantially synchronously with the rotor. Outlet passageways 16, 17, 21 are provided in the closure 2 for the red cells, white cells and plasma respectively and communicate with corresponding outlets 23, 24, 25 through a face seal lower half 6. In order to maintain the red blood cell/ white blood cell interface at the radial position of the edge of the splitter blade 14, a fibre optic loop probe 26 moulded in the closure 2 is located so that a gap in the probe occurs at that position in the separation chamber 32. The probe communicates with a light source 27 and a photodetector 28, e.g. a photo diode, outside the rotor. The degree of light extinction is proportional to the red cell concentration between the gap in the probe. Electronic circuitry 29 detects the light pulse which passes from the light source 27 through the probe once during each revolution of the rotor and produces a signal proportional to its amplitude. This signal controls the speed -of a variable - speed plasma extraction pump 30 in a line 31 communicating with the plasma outlet 25 so that the pump extracts more or less plasma so as to maintain the interface at the required radial position.
Patent GB-754257-A (GB)
Title: Improvements in memorandum appliances
IPC: B42D19/00
Filed: 1954-04-15
Abstract: 754,257. Memorandum appliances. BRANSON J. C. S. April 6, 1955 [April 15, 1954], No. 11090/54. Class 16 ' A memorandum appliance comprises a base 10 over which strips of paper 21 can be drawn from rolls 13 in a housing 15 at one edge and a number of window plates 19 hingedly connected to the opposite edge to be moved down over the strips 21 to hold them flat against the base 10 with surfaces exposed 'through the windows 20, each plate 19 being pivotally connected with a rod 26 mounted in the base in such manner that the plate may be disengaged therefrom by a sliding movement of the plate in a direction substantially parallel to the plane of the base 10. The base 10 comprises a flat portion 11 for writing purposes and a wall 12 for the paper rollers 13 which are positioned between U-shaped cradles 14 (not shown) or L-shaped cradles 29 with upstanding ends 30 separating the rolls. The housing 15 is hinged at each end to the turned back end 18 of a. wire spring 16 anchored by its U-shaped other end 17 to the base, the end 31 of the wire being engaged in a hole in the base, the wire 16 holding housing resiliently in either closed or open position. The window plates 19 are of channel section and the sides 23 are enlarged at one end to form lugs 24 having slots 25 to engage the rod 26, which is mounted in a slot 27 in the base 10 and held in position by rubber sleeves 28 between the lugs 24. The windows 20 are preferably rectangular and the opposite ends of the plates 19 are upturned at 22 to be engaged by the lips of the housing 15. To hold the plate 19 firmly on the rod 26, the slot 25 may have a convexly curved side 32. The outer end of each window may have one or more downwardly presented tongues to engage the free edge of the strip so that the strip may be easily grasped. The edge of the window plate may be used for tearing off the paper.
Patent GB-1204962-A (GB)
Title: Surgical catheter and combination thereof with a fluid-dispensing container
Inventor: COOK RALPH JOSEPH
IPC: A61F2/958
Filed: 1968-03-07
Abstract: 1,204,962. Catheter. PRODUCTS RESEARCH & CHEMICAL CORP. 7 March, 1968 [7 March, 1967], No. 11232/68. Heading A5R. A catheter for introducing a rapidly curing resin into a body cavity comprises a moulded, tubular body 15, e.g. of rigid plastics material, with a nozzle 18 immediately behind which is an inflatable collar 22. A smaller diameter tube 31 extends from inside the tube near the nozzle to the atmosphere and towards the rear of the tube there is a guard flange 16 which limits the extent to which the catheter may be inserted. In front of the flange is an annular, soft and preferably absorbent collar 20 which acts as a cushion and also to absorb any fluid leakage. The catheter may be used in combination with the dispenser container which is the subject of Specification 1,204,961.
Patent GB-1149002-A (GB)
Title: Improvements in or relating to tiling
Inventor: HAYHURST BRIAN
IPC: E04F13/08
Filed: 1966-03-15
Abstract: 1,149,002. Laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 2 March, 1967 [15 March, 1966], No. 11317/66. Heading B5N. [Also in Division B2] A sheet of tiles comprises a plurality of tiles fastened to one surface of a thin substrate formed from a sheet of thermoplastic polymeric material or a mesh of fibrous material or a sheet of paper, the other face of which is provided with at least one layer of polymeric foam material. The foam material, which may be rigid or flexible, may comprise polyurethane or polyvinyl chloride. The tiles may be ceramic tiles, polymethyl methacrylate tiles, polyvinyl chloride or rubber composition tiles, or polystyrene tiles. The thin substrate is preferably perforated and may comprise polyvinyl chloride or nylon net fabric. The tiles may be fastened to the substrate by an adhesive such as an epoxy or polyvinyl acetate adhesive.
Patent GB-543093-A (GB)
Title: Improved recuperators or regenerators for the interchange of heat between gases
IPC: F28F21/04
Filed: 1940-08-08
Abstract: 543,093. Regenerators. McCANDLISH, W. H., and SKINNER, A. J. Aug. 8, 1940, No. 11357. [Class 64 (i)] A rotary regenerator has a perforated metal cylinder 11 upon which are mounted refractory or metal blocks 12 with radial holes or spaces 13 through which the hot gases and air pass in turn as the cylinder rotates between gas and air ducts 5, 4. In place of the blocks, the perforated cylinder may be made of solid metal The cylinder is divided by a fixed heatconducting partition 16 having sliding end packings 7, 9. The hot gases from the duct 5 pass into the cylinder through the radial holes. and out through an end door, while the air enters through an end door and passes in a reverse direction through the radial holes to the conduit 4. The cylinder is supported and rotated by friction wheels 23 on driven shafts 24.
Patent GB-779128-A (GB)
Title: Improvements in and relating to refractory materials
Inventor: MOORE NORMAN CLEMENT
Filed: 1953-04-24
Abstract: A coherent composite body is made by subjecting molybdenum di-silicide in contact with alumina, with or without a flux e.g. 3 per cent silica or magnesia, to sintering temperature whilst under sufficient mechanical pressure.  Cavities can be provided by inserting core pieces of a material resistant to the temperature and pressure used, e.g. graphite, and subsequently removing the core pieces.  Provisional Specification 30213/53 discloses metals in general exemplified by molybdenum di-silicide. Specification 779,129 is referred to.
Patent GB-179799-A (GB)
Title: Collapsible cot
IPC: A47D9/00
Filed: 1921-04-22
Abstract: 179,799. Gleadall, F. April 22, 1921. Folding bedsteads.-A collapsable cot comprises ends and sides hinged to a top wire, and hinged stays for connecting the bottom members of the sides. Fig. 1 shows the cot in plan. Each side 1 consists of stays 2 attached to a lcngitudinal member 3 and formed with loops encircling the wire 4. Each end 6 consists of similar stays 5 and a transverse member 7. The sides and ends fold inwards and upwards. To hold the cot rigid, the ends of the bars 7 fit into recesses formed by bending the bars 3, and the latter are connected together by hinged stays 9. L-shaped slots in the stays 9 engage studs on the bars 3. The corner stays 2, 5 may be connected together by hooks and eyes. The bottom of the cot may rest on the stays, and the spaces between the stays may be filled in with wire &c.
Patent GB-217563-A (GB)
Title: A new or improved heat exchanger particularly for use as an evaporator
IPC: B01D1/04
Filed: 1924-05-12
Abstract: 217,563. Griscom-Russell Co., (Assignees of Price, J.). June 12, 1923, [Convention date]. Bulk evaporators.-In a steam-heated evaporator for producing purified boiler feed water, the nest of tubes 2 is formed in sections 11, Fig. 4, which are separately removable and which contain only one or two rows of tubes so that every tube is accessible for cleaning or repair. The tubes are held between tube plates by longitudinal tie-rods 12 at the top and drainage tubes 4 at the base, and may be slightly curved as described in Specification 186,028 so that on change of temperature the curvature is altered and scale &c. cracks and falls off. Each section has at the inlet a separate chamber 13, Fig. 5, attached by a bolt 21 to the main steam supply pipe 17 and at the outlet a chamber which drains by pipes 4 to draining chambers 15 bolted to the main drainage channel 22. The sections slide on supporting angle-irons 16. Openings in the headers, fitted with plugs 23 enable cleaning or other tools to be inserted in the tubes.
Patent GB-131664-A (GB)
IPC: F42C9/12
Filed: 1918-02-09
Abstract: 131,664. Vickers, Ltd., and Johnson, F. G. L. Feb. 9, 1918.. Projectile fuses.-Consists of a time-fuse in which a protected column of fuse composition, preferably enclosed in a lead or like tube is ignited at a fixed point, and is severed by an adjustable cutter on firing the shell from-the gun, the length of the column severed determining the setting of the fuse. In the construction shown, two fuse tubes B, B' are arranged circularly one above the other. One end of the tube B is provided with a percussion cap b. Below this, the end b' of the tube B' leads to the magazine C. The other end of each of the tubes B, B<1> is closed. An inertia member H, having a conical-.boss h<2> for striking and firing the cap b, is mounted on a central stem a, being normally supported by a saddle spring h<3>. The piece H has an internal flange h<1> holding up a knife G, which is pivoted on a support g secured to a rotatable time-ring D, so that the knife is adjustable relatively to the tubes B, B'. When the projectile is discharged, the member H sets back, causing the knife G to sever the fusetubes, at a predetermined point, where the upper and lower tubes are then put into communication by a recess g<3> in one face of the knife. Simultaneously the striker h<2> ignites the cap b. The fuse bums along the tube B from the cap b to the knife, and the flame then passes through the recess g<3> to the tube B<1>, in which the fuse burns backwardly to the point b'. The fuse-tubes B, B', instead of being placed one above the other, may be spirally arranged side by side, with the arrangement of the knife suitably modified. The dome E enclosing the fuse is air-tight until the shell is discharged, whereupon it is opened at the forward end by the set-back of lead or like plugs e. These are placed in apertures beneath an overhanging lip f on a cap F. The gases of combustion are withdrawn from the dome through a channel f' in the cap by suction during the flight of the projectile. One of the Provisional Specifications describes a modified construction, in which the time-setting is effected by means of a rod carrying the cutter and passing through a gastight gland. Another Provisional Specification states also that the time adjustment may be effected by rotating the tubes containing the fuse composition.
Patent GB-329782-A (GB)
Title: Improvements connected with electrically released roller and similar window shutters and the like
IPC: E06B9/68
Filed: 1929-04-16
Abstract: 329,782. Soper, H. N. April 16, 1929. Window guards. - Roller window and like shutters are adapted to be closed automatically for theft prevention or the like by the interruption of a lighting circuit. By breaking the main lighting circuit at 3 or by a time switch TS the electromagnet 1 in a parallel circuit may be adapted directly to release the roller shutter or by breaking contact at 5 in an auxiliary circuit the shutter may be released by the armature 13 of the magnet 8 and toggles 14, 15 connected thereto and to a catch 17 adapted to hold a wheel 18 on the shutter. The auxiliary circuit may have a part 10 traversing the window as described in Specification 314,690 and a switch 9 and milliampmeter 6. The time switch and electromagnet 1 have cut-out switches 2, 11 in parallel. The auxiliary circuit may have an automatic switch adapted to be closed by engagement between the catch 16 and a pawl on the shutter wheel. With alternating current supply an electrothermal control may be substituted for the relay 1.
Patent GB-1306535-A (GB)
Title: Performing operations in pipes
IPC: G01N23/18
Filed: 1970-03-11
Abstract: 1306535 Controlling vehicles SNAM PROGETTI SpA 11 March 1970 [11 March 1969] 11785/70 Heading B7H [Also in Divisions F2 G1 and H5] Apparatus for performing an operation such as cleaning, painting or weld radiography inside a pipe, is mounted on a carriage movable along inside the pipe, to a desired position along its length determined by a source of penetrative radiation, located outside the pipe at the desired position, which actuates a detector, mounted on the carriage, to cause stopping of the carriage and/or initiation of the operation. Radiography carriage, as shown in Fig. 1, has a battery carrier 8, pivoted to remain vertical and prevent electrolyte spillage, and coupled by lever 7 to steering arm 6 to provide automatic steering to avoid turning over at bends in the pipe. A gamma radiation source for radiography is automatically moved out from a cylindrical container 2 by an electromagnet to an irradiation position 4 where a 360 degrees collimating zone 5 is provided between shield 1 and container 2. Control circuit, Fig. 2.-Switch D or F is closed to apply power from battery B 2  to the electric motor M driving the carriage along the pipe through its rear wheels. On reaching the predetermined position, gamma radiation γ<SP>s</SP> from the external radioactive source is detected by a geiger counter mounted on the carriage. The output of the counter is integrated and causes energizing of relays R 1  and R 3  to stop the carriage. The external source is now removed. Relay R 3  is self-holding and so programmer P is allowed to execute the exposure sequence, causing energization of the electromagnet E which moves the radiography source S 1 . At the end of the exposure, relay R 3  is de-energized and motor M started again. The circuit includes an acoustic warning device A which produces a continuous signal during movement of the carriage and an intermittent one during the exposure period. Circuit modifications, Fig. 3 (not shown).- The detector output is integrated and feeds a monostable multivibrator determining the exposure cycle period. A further gamma source and further counter are used to stop and perhaps reverse the direction of running of the carriage. The first and further detectors are arranged to view upwardly and downwardly, respectively. Reference has been directed by the Comptroller to Specification 1,200,896.
Patent GB-706602-A (GB)
Title: Improvements in or relating to railway sleepers
IPC: E01B9/68
Filed: 1952-05-09
Abstract: 706,602. Concrete railway sleepers. MAIL LARD, F. May 9, 1952 [May 11, 1951], No. 11858/52. Class 104 (2) A railway sleeper has a pair of reinforced concrete blocks 1, 2 joined by a reinforced concrete tie 3, the upper faces of the blocks 1, 2 being recessed at 10, 11 to receive nut blocks 15 formed with an eccentrically arranged internally threaded bore to receive a screw spike, the nut blocks 15 being adjusted about their vertical axis prior to their being secured in the recesses 10, 11 so as to allow of rail gauge adjustment. The nut blocks 15 are of concrete reinforced with metal hoops 16 and rods 17, the threaded bore is reinforced with a metal coil 19, and they are conical so as to fit into similarly shaped recesses 10, 11. The recesses 10, 11 are reinforced with metal hoops 12, 13. The tie 3 is attached to the blocks 1, 2 by rods 4 which are protected at the joints between the blocks 1, 2 and the ends of the tie 3 by a sleeve 14 of gutta-percha, paint, natural or synthetic resins or rubbers or alternatively the rods 4 may be made of a rust proof metal. The nut blocks 15 may be grouted in the recesses 10, 11 with cement, putty, peat, bitumen, natural or artificial glue or alternatively a cement containing rubber or a similar material if the nut block 15 is to be insulated from the blocks 1, 2. The tie 3 is reinforced with a metal coil 5 which is flush with the outside of the concrete 6 and is protected by a coating of paint 7, mineral or vegetable bands soaked with pitch, rubber, natural or synthetic resins. The rail may rest on a painted metal plate 20. Insulating material may be inserted between the plate 20 and the blocks 1, 2.
Patent GB-821422-A (GB)
Title: Apparatus for collecting waste fibrous materials from textile and other machinery
Inventor: GORDON MALCOLM FAYERWEATHER
IPC: D01G15/82
Filed: 1955-04-26
Abstract: 821,422. Baling and packaging fibrous materials. LINEN THREAD CO. Ltd. April 20, 1956 [April 26, 1955], No. 11959/55. Class 94(1). [Also in Group XXVIII] Textile fibres separated from air in a cyclone 8 fall from the collecting hopper 9 thereof into a horizontal tube 13 where they are compacted by a spiral screw 15 and are expelled through a weighted door 17 and fall into a receptacle 25, Fig. 1 (not shown). In a modification compressor and expulsion of the fibres is effected by a piston.
Patent GB-1309682-A (GB)
Title: Electrical control apparatus
IPC: H02P7/00
Filed: 1970-03-12
Abstract: 1309682 Control of motors A K LITTWIN 12 March 1970 [18 March 1969] 11977/70 Heading H2J Relays 10, 12 control the operation of an electric or hydraulic motor which drives a reciprocating machine-part such as the table of a grinder. A post 52 follows an inclined surface on the table and respectively moves armatures 42A, 44A, oppositely into and out of the coils of transformers 42, 44. Armatures 46A, 48A, are associated with transformers 46, 48, and are manually positioned. When the table is in a right-hand position, the armature 42A is projected into the transformer 42 whereby the bias supplied by network 34 renders SCR 63 conductive to energize transformer windings 72P, 72S. Transistors 76, 78 are turned-on whereby triac 80 completes a circuit for the relay 10. Transformer windings 86P, 86S, are also energized to hold off a transistor 82 and the relay 12. Continued movement of the armature 42A into the coils 42P, 42S causes the transistor 76 to shut off at a point determined by the setting of the armature 46A. Thereupon, transformer 44 turns on the SCR 66 so that transistors 82, 84, conduct and triac 85 energizes the relay 12 as well as the primary winding 88P for blocking the transistor 76 and the relay 10. The table is thus driven in the opposite direction. Potentiometers 68, 70 ensure that one portion or the other of the circuit is energized at all times. The range of movement of the table is determined by adjustment of the armatures 46A, 48A. Transformers 90, 92, provide fine control of the relays 10, 12.  In a modification, the relays 10, 12 are D.C. energized directly through the transistors 78, 84, Fig. 6 (not shown).