baber/WOPTO huggingface dataset:
Patent GB-1194293-A (GB)
Title: Improved Machine for Feeding Film
Inventor: HOPE HENRY FRANK
IPC: G03D13/00
Filed: 1968-06-13
Abstract: 1,194,293. Feeding sheets. H. F. HOPE. 13 June, 1968, No. 28080/68. Heading B8R. Sheets such as X-ray films F, F-1, Figs. 2, 3 and 13, are stacked in a stationary tray 32 and interleaved with spacer sheets 70, 71 secured together at the rear end, there being one spacer sheet over each film. The top sheet is separated and passed to feed rollers 12, 14 by means of one-way rollers R carried on arms 42 freely pivoted to ears 26 of a carriage 36 which is reciprocated by a pin 48 on a chain 50 driven by a reversible motor M or by two motors. On the feed or upward stroke, the rollers R are held against rotation and act as friction separators, while on the retain stroke the rollers rotate freely and the carriage moves by gravity as allowed by the retreating pin 48. The rollers engage the film through slots 78, 80 in the sheets 70, 71. The rollers 12, 14 are driven by a separate motor M-1, and pass the sheets to continuously driven rollers 9, 11 of a film processing machine, the roller 9 being vertically movable. The direction of drive of the motor M is controlled by a switch 56 sensing the absence or presence of a film between the rollers 9, 11. Furthermore, the upward and downward movement of the carriage is stopped when the carriage actuates respective limit switches 91, 62 to de-energize the respective motor windings. When the tray is empty, one of the rollers R drops into a recess 90 in the tray 32 and actuates a switch 86 to stop the upward stroke of the carriages. The apparatus is enclosed in a casing 16 having hinged light-tight doors which when open actuate a switch to stop the motor M. Actuation of the switches 91, 62, 86 lights warning lamps. The rollers 12, 14 are driven through a one-way slip clutch so that if a film is presented moving faster than the rollers it will accelerate them without buckling. The films are directed to the rollers 12, 14 by a curved guide member 120. The apparatus can be used with films of two different lengths.
Patent GB-209823-A (GB)
Title: Synchronisation of clocks by wireless waves
IPC: G04R20/20
Filed: 1922-10-17
Abstract: 209,823. Parsons, I. H., and Ball, A. E. J. Oct. 17, 1922. Controlling clocks.-In means for synchronizing clocks by wireless time signals, a relay actuated by the receiving- apparatus operates a selecting- device which continually rejects the usual warning signals but transmits the actual time signal to apparatus so arranged that it closes a. local circuit for a period of about one second and meanwhile operates the clock-setting mechanism. In the arrangement shown in Figs. 1-4. receiving-apparatus A causes the warning signals to operate a relay A4 which closes a local circuit and energizes a magnet B, thus raising a lever C1 having a returning-spring C3. A detaying-device C5, C6 prevents the lever C1 from being fully retracted before it is again raised owing to the receipt of the next warning signal. During the usual interval of about five seconds which precedes the final time-indicating dot signal the lever C1 is, however, fully retracted, thus causing its arm D to depress a contact spring E1, so that the next impulse from the relay A4 passes through a magnet F, Fig. 3, instead of through the magnet B. Attraction of an armature F1 then releases a lever G which, in falling, turns a partly-balanced lever H carrying a cam H4 which closes a circuit H5, H6 and energizes a magnet J, Fig. 4, thus moving a lever J2 so that it turns a heart-shaped cam J6 and pushes the seconds hand J8 of the clock back to zero. Immediately afterwards, contacts J9, J10 complete the circuit of a magnet D5, Fig. 2, and the jointed arm D is moved to allow the contact spring E1 to return to its original position. Means operated from the clockwork are provided for restoring the lever G, Fig. 3, to its raised position and also for closing the filament circuit about half a minute before the signal is due and subsequently breaking it. In a modification for synchronizing a master clock having a gaining rate, the mechanism shown in Fig. 4 is dispensed with and the lever C1, Fig. 2, is so arranged that on its first upward movement it raises a lever N2, Fig. 5, and closes contact N, N1, thus energizing a magnet Q1 forming part of clock retarding mechanism. The lever N2 is retained in its raised position by a catch O until the final dot signal energizes a magnet P, which takes the place of the magnet F, Fig. 4. Breakage of the contact N, N1 throws the retarding-mechanism out of action so that the clock hands again move forward. In order to retract the catch O if the final dot signal should fail in transmission, the lever C1 is so arranged that near the end of its downward movement it closes a contact P1, P2 and thus energizes the magnet P.
Patent GB-409760-A (GB)
Title: A process for treating porous soils
IPC: C09K17/34
Filed: 1932-10-10
Abstract: A dispersion for hardening and fixing soil comprises bitumen dispersed in a solution of potassium oleate and/or potassium aluminate, and stabilized with casein.  Suitable proportions are given in the Specification.  The dispersion is introduced into the soil under treatment and caused or allowed to coagulate.ALSO:A process for impermeabilizing and fixing soil consists in causing an aqueous dispersion of bituminous substances to penetrate into the soil and to coagulate into a firm and impermeable layer or mass.  The soil may be previously treated with coagulation-promoting agents such as electrolytic solutions, or coagulation-hindering agents such as alkaline solutions so as to ensure coagulation at the desired place. Alternatively, coagulation may be controlled by employing a dispersion of known velocity of penetration and stability, which latter may be modified by treating the dispersion prior to, during, or after its introduction into the soil with coagulation promoting agents (e.g. esters which are easily hydrolysable such as methyl formate, sulphur dioxide, carbon dioxide, chlorine, ammonia), or with substances which decompose the stabilizing agent; thus, when casein is the stabilizer, septic substances such as ditch-mud may be employed.  The soil may be previously treated with water to remove naturally occurring substances affecting coagulation.  The particle size of the dispersion is preferably smaller than the pores of the soil.  Particular examples of dispersions given are asphalt prepared with soap solution, and bitumen dispersed in a solution of potassium oleate and/or potassium aluminate, casein being the stabiliser in either case.  The substances may be introduced into the soil through foraminous pipes.  The invention is particularly applicable in the construction of dykes, barrages, sluices, tunnels, the improvement of building sites, and for reducing ground pressure against vertical walls.
Patent GB-481301-A (GB)
Title: Improvements relating to printing mechanism for steelyard weighing apparatus
IPC: G01G23/18
Filed: 1936-10-17
Abstract: 481,301. Weighing-apparatus. ASHWORTH, ROSS, & CO., Ltd., WHEELER, F. C., and DALLY, R. Oct. 17, 1936, No. 28274. [Class 143] Printed records, apparatus for giving.-In a steelyard weighing - apparatus employing a printing mechanism, a lever fulcrumed on the steelyard and co-operating with notched extensions of the poises prevents a printed record from being obtained unless the poises are correctly positioned in their notches. As shown, the usual rack extensions 4b, 4c of the poises 4<11>, 4<111> are provided with notches 5 corresponding to the steelyard notches. If the poises are correctly positioned in their notches, a pin 6 on a lever 6a, 6b pivoted on the steelyard, enters the notches and withdraws the upper end of the lever from the ticket slot 8. Otherwise the lever prevents the insertion of the ticket and a record cannot be obtained. In a modification, the lever actuates a vertical obstructing pin within the ticket slot.
Patent GB-1400624-A (GB)
Title: Metal compositions
IPC: C22C1/00
Filed: 1972-06-16
Abstract: 1400624 Casting processes MASSACHUSETTS INSTITUTE OF TECHNOLOGY 16 June 1972 [16 June 1971 31 May 1972] 28274/72 Heading B3F [Also in Divisions C7 and F4] A partially molten metal is agitated by mixer blades, gas-bubbling or electromagnetic stirring to disperse solid particles in the liquid metal and form a viscous slurry. The partially molten metal slurry may be cast into a mould or rapidly cooled to form a slug which comprises dispersed particles of degenerate dendrites in a matrix of solidified metal. The slug upon reheating becomes thixotropic and may be cast by forcing the apparently solid slug into a mould, the shear force causing the slug to flow. The casting of Sn-10% Pb, Cu-10% Sn, Fe-3% C-4% Si and Al-8À5% Si-3% Cu-1% Fe is exemplified. Sn-15% Pb, Al-30% Sn and Al-4À5% Cu can also be employed. Molten Pb may be dispersed in liquid-solid Al alloy to form a composite bearing material. Particulate additives, e.g. graphite, ceramic, sand or foaming agents, e.g. ZrH 2  can be added to the slurry.
Patent GB-1314320-A (GB)
Title: Automatic threading video recorder
IPC: H04N5/782
Filed: 1971-06-17
Abstract: 1314320 Threading tape automatically AMPEX CORP 17 June 1971 [1 July 1970] 28374/71 Heading G5R In an automatic tape threading video recorder designed for a tape supply spool in which an enlarged portion 22, Fig. 2 of a tape leader is gripped by recesses 41 in the spool in such a way that tape on the spool is held firmly in place with the end 22 of the leader projecting freely as shown in Fig. 1, from the spool, threading is initiated by energizing a solenoid 57 causing an idler roller 61 to be moved into contact with both a drive wheel 67 and a flange on the tape supply spool and the following operations then take place: (a) a finger 51 mounted on the same pivot as the roller 61 unpeels the tape leader from the tape spool and guides it towards a pinch roller 69 as the tape spool is rotated, (b the tape leader is gripped by the pinch roller 69 and the drive wheel 67 and pushed and guided forwards past an erase head 27, an arcuate video scanning unit 73, 79 and an audio head 31 to a second pinch roller 93 and drive roller 95, (c) once the tape leader emerges from the second pinch and drive roller and is detected by a lamp 96 and photocell 97, the solenoid 57 is de-energized so that drive is removed from the tape spool and the pinch roller 69, and (d) finally the tape leader impinges upon an arcuate member 112 which guides it around a driven take-up spool 117. A modification (Fig. 6, not shown) is described allowing the tape to be wound in the opposite direction on the take-up spool. The system described also includes a switch 123, which is closed when the tape tension rises at the end of the reel, to stop the machine.
Patent GB-1029100-A (GB)
Title: Flocculating process
IPC: B01D21/01
Filed: 1963-03-05
Abstract: Starch, casein, algin, dextrin, polyvinyl alcohol, dextran and alkylene oxide condensates such as polyethylene oxide are irradiated and treated with oxygen to introduce hydroperoxide groups therein and acrylic acid, methacrylic acid their alkali metal salts and amides acrylonitrile and vinyl piperidene are grafted thereon in the presence of a catalyst to produce a flocculating agent.  The flocculating agents are used to treat suspensions of carbon black, kaolin, and the red mud resulting from the treatment of bauxite with sodium hydroxide.ALSO:A graft copolymer is made by irradiating corn starch with gamma rays in the absence of oxygen, then contacting the irradiated starch with acrylamide and water.  Graft copolymer is precipitated from the reaction medium by addition of methanol.
Patent GB-984793-A (GB)
Title: Improvements relating to dry shavers or cutters
Inventor: SANDERS NORMAN THOMAS
IPC: B26B19/14
Filed: 1960-06-30
Abstract: 984,793. Dry shavers. NEEDLE INDUSTRIES Ltd. June 30, 1961 [June 30, 1960], No. 28483/64. Divided out of 984,791. Heading B4B. The dry shaver disclosed in Specification 984,791 is driven by a battery-powered electric motor, the thickness of the guard plate 10 and of the cutting blade 16 being preferably less than 0À005 inch and between 0À003 and 0À005 inch so that a close shave is afforded by the thinness of the guard plate, and, due to its low inertia, the cutting blade can follow deflections of the guard plate, resulting from contact with the skin to be shaved, under a sufficiently low biasing force by the springs 25 to overcome frictional forces between the blade and the guard, that there is no excessive drain from the battery.
Patent GB-200011-A (GB)
Title: Improvements in apparatus for indicating the depth of liquids
IPC: G01F23/14
Filed: 1922-10-19
Abstract: 200,011. Murphy, L. Oct. 19, 1922. Indicators actuated by pressure of head of liquid.-A mercury seal is provided for the lower end of an air tube immersed in a liquid, the mercury being contained in a vessel open to the liquid and placed at the bottom of the liquidcontaining tank. In the most simple form shown in Fig. 1, mercury is poured into the cup B up to the level C, the tube D, to which the gauge is connected and through which air may be blown, extending below this level. In a modification, a larger tube surrounds the tube D, the bottom end extending close to the bottom of the mercury cup and the top end through the top of the tank. In the form shown in Fig. 3 a U- tube is attached to the tank bottom, the tube D extending below the level of the mercury. This form is modified by placing one leg of the U- tube within the other. Specifications 2211/00, [Class 106, Registering &c.], and 116,479 are referred to.
Patent GB-473574-A (GB)
Title: Electron discharge tubes
IPC: H01J5/08
Filed: 1936-10-20
Abstract: 473,574. Thermionic valves. LORENZ AKT.-GES., C. Oct. 20, 1936, Nos. 28538 and 28539. Convention dates, Oct. 24, 1935 and Jan. 20, 1936. [Class 39 (i)] An ultra-short wave tube comprises a condenser of which one plate is connected directly to an electrode, for example the grid, whilst leads from the exterior are connected to both plates. In one form, Fig. 2, the plates 1, 3 of a condenser C are connected together and to a lead A1 and the plate 3 is welded to the backbone E of the grid G. The middle plate 2 is connected to a lead A2 which is connected to the anode A through an inductance L. A variable condenser U may be connected between the grid and the cathode. The arrangement may serve as the local oscillator, signals being applied to an additional grid. In a modification the plate 1 may be omitted and the plate 3 may have a flanged edge forming part of the envelope. The anode then also forms part of the envelope. In another modification, Fig. 4, extensions of the anode A and of the plate 3 are shrunk on the ceramic envelope D and the joints sealed by glass pieces S. The plate 2 is then an annulus separated from the flange Q of the plate 3 by dielectric 4. A glass sealing and pumping piece g is provided.
Patent GB-737799-A (GB)
Title: Improvements in and relating to carpet weaving looms of the type provided with a wire motion
Inventor: CRAIG ARCHIBALD FULTON
IPC: D03D39/00
Filed: 1952-11-12
Abstract: 737,799. Wire tapestry looms. CRAIG & CO., Ltd., A. F. Nov. 4, 1953 [Nov. 12, 1952], No. 28552/52. Class 142(2). To facilitate changing from two-shot to three-shot weaving, the wire-inserting mechanism is driven through a gear-box containing alternative gears, the driving member of a clutch on the input shaft being engageable with either of two driven members ; one gear train comprises spur wheels suitable for causing a wire to be inserted on one pick and a wire to be withdrawn on the next pick ; the other gear train includes elliptical gearwheels for causing a wire to be inserted on one pick and a wire to be withdrawn during the next two picks. Appropriate manipulation of the wire guide, which registers with the shed for insertion of a wire and moves forward to take a previously inserted wire from the fabric, is effected by alternative cams 47, 48 and 47a, 48a, driven through alternative gears 54, 46 and 53, 45 ; changeover from two to three-shot weaving is effected by sliding the gears 53, 54 to the position shown in chain line, where the gear 53 meshes with the gear 45, and transferring cam followers 38, 42 to the opposite sides of levers 37, 41 as indicated in chain line. The lever 37 moves the wire guide fore and aft, and the lever 41 operates a member which holds a wire in the guide.
Patent GB-408536-A (GB)
Title: Improvements in or relating to combined fire-alarms and gas detectors
IPC: G01N25/38
Filed: 1933-10-16
Abstract: <PICT:0408536/III/1> A device for giving an indication in case either of fire or of the presence of gas in the vicinity of the device, comprises a base c on which are mounted pairs of spring arms g, g<1> carrying contacts h, h<1> and l, l<1> arranged in suitable alarm p circuits.  The spring arms tend to bring the pairs of contacts together, but they are held apart respectively by insulated blocks i, k.  The block i is adapted to melt in case of fire, and the block k to decompose in the presence of gas.  The elements are protected by a perforated cover.
Patent GB-786456-A (GB)
Title: Improvements in or relating to apparatus for clamping exchangeable tools
IPC: B21D11/08
Filed: 1955-10-06
Abstract: 786,456. Magnetic tool holders. ECKOLD, W. Oct. 6, 1955 [June 13, 1955], No. 28566/55. Class 60. [Also in Group XXII] Metal working apparatus has a magnetic tool holder the contact surfaces of the holder and of the tool, or a clamp therefor, being such that the tool, or the clamp therefor, may be pulled away in a direction at right angles to the working stroke of the machine. Permanent magnets 11 let in the base of a fixed member 10 have spherical recesses 12. A tool 14 has a number of symmetrically arranged cylindrical holes which contain steel balls 13, the ends of the holes being tapered to retain the balls. When the tool 14 is correctly positioned on the member 10 the balls 13 are held in the recesses 12. Some of the recesses may not be magnetic in which case the balls may be spring-loaded.
Patent GB-885585-A (GB)
Title: Improvements in mechanism for dispensing articles
IPC: B65G59/06
Filed: 1958-03-31
Abstract: 885,585. Feeding printed circuit boards. JUST, A., and JUST, M. R., [trading as MALCO MANUFACTURING CO.]. March 31, 1958 [June 7, 1957], No. 28572/61. Divided out of 885,584. Class 117. A magazine 26, 28, from the bottom of which printed circuit boards are discharged singly by pusher 30, is made adjustable to suit boards of differing sizes. Thus vertical L-posts 26 are carried by respective bars 48 adjustable by means of clamps 52 along slideways 54, and vertical posts 28 and cylinder 34 are all secured to plate 56 adjustable along slideways 62 by adjustment blocks 58, whereby said posts 28 and pusher 30 are simultaneously adjustable.
Patent GB-1248658-A (GB)
Title: A method and apparatus for feeding shredded cellulose pulp to a disintegrator
IPC: D04H1/425
Filed: 1969-06-05
Abstract: 1,248,658. Screw conveyers. MO OCH DOMSJO A.B. 5 June, 1969 [5 June, 1968], No. 28620/69. Heading B8A. [Also in Division B2] A system for comminuting cellulose comprises a pulp shredder e.g. a hammer, cutter, or roller mill 1, Fig. 1, a conveyer to an accumulator vessel 6, which has a through-flow cross-sectional area increasing from its upper inlet to its lower outlet, a conveyer to a disintegrator 11 and a feedback conveyer between the input and output of the accumulator. Thus a constant flow or material can be produced from the disintegrator to a diaper- or napkin-making machine which will manufacture products of consistent absorbency. Sheet pulp comminution at 1 into 2 cm. pieces is supplied to the vessel 6 by screw conveyers 4, 5 and distributed by a screw conveyer 8 which has through apertures 9a . . . 9c, Fig. 2, to screw conveyers 10a ... 10c and thence to a battery 11a . . . 11c of disintegrators. Variations in pulp level at 6 are monitored by e.g. an ultrasonic device 7 or otherwise electrically, optically or mechanically to control the operation of pulp feed rollers 2 . In an alternative embodiments conveyers 4 and 8 may be arranged to slope upwardly to intersect, thus eliminating the vertical conveyer 5: and conveyers 10a . . . 10c may have double worn threads or a tapering discharge end to counteract the tendency to pulsating feed.
Patent GB-486723-A (GB)
Title: Liquid-controlling valves
IPC: F16K1/36
Filed: 1937-10-21
Abstract: 486,723. Valves. STANLEY, W. Oct. 21, 1937, No. 28659. [Class 135] A cock with valve-member moving axially in a chamber 15 between alternative seats has the outlet closure surfaces 16, and preferably also the inlet closure surfaces 19, of curved or frustum shape with or without an interposed hard-wearing lining. The actuating screw 13 may have a plurality of leads.
Patent GB-694057-A (GB)
Title: Improvements in the production of repair of refractory articles
IPC: C04B33/32
Filed: 1950-11-23
Abstract: Refractory articles are produced or repaired by shaping fusible material, placing fuel contiguous to one surface thereof and burning said fuel in an atmosphere containing, by volume, at least 30 per cent, oxygen.  Solid carbonaceous fuel is preferred, and specified fusible materials are magnesite, magnesia, dolomite, alumina, bauxite, zirconia, chromite, silica or clay.  If burning is of short duration only a surface glaze will ensue.  According to the Provisional Specification the oxygen content may fall to 20 per cent.
Patent GB-1263549-A (GB)
Title: Pleating apparatus
Inventor: WILKINSON WALTER
IPC: D06J1/06
Filed: 1969-06-06
Abstract: 1,263,549. Pleating fabrics. BASFORD DYERS Ltd. 24 Dec., 1969 [6 June, 1969], No. 28675/69. Heading D1S. Pleating apparatus comprises at least two reciprocable pleating blades 16, 17, the blades being reciprocable towards and away from, and in first parallel planes substantially normal to, respective surfaces of a material to be pleated positioned between the blades, one of the blades being reciprocable in a plane substantially normal to the first planes; means for reciprocating and moving the blades 16, 17 in timed relationship to pleat and progress the material being pleated through the apparatus, and means 30, 31 for heating the pleats thus formed. The material to be pleated, e.g. a textile fabric containing synthetic thermosetting fibres, passes from a roll 11 and around guide rolls 12, 13, 14 to the blades 16, 17 which extend transversely across the apparatus for a width greater than the width of the material. The blade 16 is located in a slot 18 on a table 19 and its edge lies below the table surface when fully retracted. The blade 17 is movable relative to the blade 16 in a direction parallel to the longitudinal axis of the material. The blade 17 is spring-urged towards the roll 11 and each blade 16, 17 is movable by a cam and follower arrangement. The pleats are set in a chamber 20 and are held in position during setting by a bar 21 slidable over the surface of the table 19 and which is urged towards the blades 16, 17 by weights 22 on strings 23 passing over pulleys 24. The chamber 20 is heated by two electrically-heated thermostatically-controlled oil baths 30, 31, the bath 30 being at a slightly lower temperature than the bath 31. The apparatus may be provided with a second heating chamber including pipes 26 for distributing steam through perforations in the table 19, a steam removal canopy 27 and a hinged flap 28 to normally close the end of the chamber. In a modification, a backing sheet of paper is supplied from a roll 33 to hold the pleats during passage through the chamber 20 and is removed as the material leaves this chamber. In operation, Fig. 2, initially, the blade 16 is fully retracted into the slot 18 and the blade 17 is in its lowermost position on the side of the slot 18 remote from the roll 11 (position A). The blade 16 is raised to form a pleat (position B). The blade 17 retracts (position C), is moved to the rear of the slot 18 (position D) and is lowered to clamp the material between itself and the table 19 (position E). The blade 16 is retracted leaving a formed pleat (position F) and the blade 17 moves away from the slot to its starting position (position G).