baber/WOPTO huggingface dataset:
Patent GB-1270169-A (GB)
Title: Method and device for pressing a roll against a workpiece
IPC: B21B13/14
Filed: 1969-07-23
Abstract: 1,270,169. Rolling machines. INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE. 23 July, 1969 [23 July, 1968], No. 36950/69. Heading B5A. [Also in Divisions B3 and D2] A rolling mill or calender is provided with a working roll 2 which is pressed against a workpiece 1 by a liquid 4, the liquid being frozen by cooling ducts 10a-10c in order to prevent the leakage of liquid between the roll and supporting walls 7a. The workpiece 1 passes between the roll 2, which is relatively flexible, and a larger roll 3 which is relatively rigid. The arrangement of the cooling ducts and the shape of the liquid containing chamber can be modified to vary the distribution of frozen liquid. Thus, it is possible to freeze the whole chamber, the top portion only, or the two corners between the roll and the walls 7a. The ends of the roll, Fig. 3, may be provided with journals or may bear against cooled end plates 7c and 7d. The liquid 4 is preferably water, and the cooling fluid passing through .the ducts 10a-10c dichlorodifluoromethane.
Patent GB-449479-A (GB)
Title: Improvements in and relating to the manufacture of electric incandescent lamp filaments
IPC: H01K3/02
Filed: 1934-12-27
Abstract: 449,479. Electric incandescent lamp filaments. AURORA LAMPS, Ltd., and SILVERBERG, H., Ferry Road, Old Kilpatrick, Dumbartonshire. Dec. 27, 1934, No. 37053. [Class 39 (ii)] A method of making double helical filaments for electric lamps comprises winding a helix of the first order on a mandrel, winding this helix and its mandrel upon a second mandrel to form a double helix wherein the number of turns per centimetre is less than that required in the finished filament, and then removing the mandrels, whereby the resulting contraction produces an increase in the number of turns to that required per centimetre length of the second helix. A heat treatment may be given to relieve part of the internal stresses in the filament before the mandrels are removed, for example by passing the mandrels with the filament wound thereon through a bunsen flame at a temperature of about 1200‹ C. at the rate of about three feet per minute. Alternatively they may be passed in a continuous length through an electric furnace in a reducing or inert atmosphere, or they may be cut into lengths and heated either in an electric furnace or by the passage of current, the treatment being such that a part of the stresses are retained so that contraction occurs after removal of the mandrels. Examples are given of drawn tungsten wire, preferably of the non-sag type, wound upon molybdenum mandrels which are dissolved out in known manner.
Patent GB-449547-A (GB)
Title: Improvements in and relating to sound heads for reproducing sound from sound films
IPC: G11B5/00
Filed: 1934-12-28
Abstract: 449,547. Sound - film feeding and guiding devices. FISHER, D. P., 22, Wigan Street, Wellington, New Zealand. Dec. 28, 1934, No. 37179. [Class 40 (ii)] In apparatus for reproducing sound from a film record, uniform movement of the film is ensured by passing it over a freely-mounted heavy cylindrical roller 10, which is driven by the film before it reaches the sound-gate 5, the roller 10, to which the film is fed by an intermittent sprocket 9, being of large diameter sufficient to provide a large arc of contact with the film, and of sufficient mass to produce a steadying effect. The film also passes over a smooth roller or a sprocket 2, preferably located close to the lead-in side of the sound-gate, and having a fly-wheel 11 or the like on its spindle. which completes the elimination of irregularities of motion of the film before it enters the soundgate. The roller 10, which is centrally recessed, is pivoted at 20 on an arm 21, adjustably mounted on a pin 22, Figs. 7 and 8. An arm 27 is secured in an adjustable manner on a boss 28 formed on the arm 21, and provides a pivot bearing at 25 for another arm 24 carrying a roller 19 which, under the action of a coiled spring 29, presses the film against the heavy roller 10. With the arrangement shown, the roller 10 can be adjusted to the best position relatively to the sprocket 9, and the roller 19 may be independently set to the best position in relation to the roller 10. After leaving the sound-gate 5, the film passes over a guideroller 7 and over a resiliently-mounted jockey pulley 12, arranged as described in Specification 449,600.
Patent GB-1270368-A (GB)
Title: Two-channel generator of repetitive signals
Inventor: CHECIULESCU MARIO
IPC: H03K3/64
Filed: 1970-07-31
Abstract: 1,270,368. Transistor pulse circuits. UZINELE ELECTROPUTERE CRAIOVA. 31 July, 1970, No. 37205/70. Heading H3T. A two channel signal generator comprises: a pulse generator GSR; two monostable circuits T6, T7 T8, T9 to provide output signals in two channels C1, C2 respectively; and diode capacitor gates C3, D3 C4, D4 for selectively applying the pulse generator output to one or other of the monostable circuits. Operation of the gates is controlled by a signal m# which is applied to a threshold circuit DP2. When m# is below threshold U r2  the output from DP2 produces a "1" on line CC1 and a "0" on line CC2 to open gate D3, C3. When m# exceeds the threshold gate D4, C4 is opened by a "1" on CC2 and a "0" on CC1. The signal me is also applied to pulse generator GSR to enable it as long as me exceeds a threshold U r1  which is lower than U r2 . Control signal me may be overridden by control units LCP LCS which can inhibit the pulse generator or the channel switching respectively, irrespective of the value of the control signal me. Pulse generator GSR comprises a comparator DP 1  to which signal m# is applied. If m# exceeds U r1 , the output from T 1  cuts off T 3  to allow capacitor C 1  to change switching monostable CMRS to its unstable state. The monostable output is then fed back via diode D2 to take the base of T1 below U r1  switching on T3 to discharge C1. At the end of the relaxation time of the monostable the circuit reverts to its initial conditions and the cycle repeats.
Patent GB-1308256-A (GB)
Title: Information recording and reproducing apparatus
IPC: G11B15/665
Filed: 1971-08-09
Abstract: 1308256 Automatic control of web length INTERNATIONAL BUSINESS MACHINES CORP 9 Aug 1971 [24 Aug 1970] 37267/71 Heading G3R A strip record medium 10 is advanced in increments, the size of the increments being adjusted according to the difference in phase between detected reference marks pre-recorded on the medium and synchronizing signals. The reference mark record and playback transducers 36, 38 are so spaced that recording occurs while the medium is stationary and reproduction while it is moving, and the synchronizing signals are used to record the reference marks. As shown, magnetic tape 10 is passed helically about part of the circumference of a fixed drum 12 having a slot within which video or other information transducers 20 rotate. A loop 80 is intermittently produced by a roller 70 reciprocated by a cam 68 on the transducer shaft 24. The tape passes over other rollers 14', 16' on pivoted arms which are rocked by a second cam 58, and a capstan 50 coupled to the transducer shaft has an intermittently engaged pressure wheel 52. The arrangement is such that, with the right hand half of the tape stationary the loop 80 is formed, pulling the tape by one increment round the left  hand half, following which the left hand is held stationary while the loop is straightened out by engagement of the capstan to move the right half. The transducers 20 engage the tape only while it is stationary. The length of the tape moved during each increment (e.g. 1/3 inch) is determined by the size of the loop 80, and this is adjusted, e.g. by providing a variable stop for the roller 70, an adjustable screw or hydraulic cylinder in the push rod 72, or by forming the cam 68 with a taper and adjusting its position along its axis. The adjustment is controlled by a voltage produced in a logic circuit Fig. 6 (not shown), in which the charging of a cpacitor occurs for a time depending upon the phase difference between the pulses from transducer 38 and "synchronizing" pulses, produced by a lamp and photo-cell cooperating with an apertured disc 30 on the shaft 24. The adjusting voltage may also regulate the motor drive for shaft 24, or this may be controlled by means not disclosed to synchronize with video frame signals. The disc 30 may have other apertures for use with an address locating systems (not disclosed) and there may be further transducers revolving at a slower speed (e. g. 264 times slower) for audio signals. Other embodiments are mentioned in which the record medium is punched or inked tape, or tape deformed by heat or electrostatics and read optically.
Patent GB-841393-A (GB)
Title: Improvements in or relating to electric horns
Inventor: TURNEY ERIC JAMES
IPC: G10K9/15
Filed: 1957-11-29
Abstract: 841,393. Electric horns. GENERAL MOTORS Ltd. Nov. 6, 1958 [Nov. 29, 1957], No. 37295/57. Class 13. In modification of the motor horn described in Specification 804,868, a resistor disc 65, Fig. 4, and conductive supports 61, 63 leading to the contact-breaker assembly 79, are secured to a wall 11 of the casing by a single rivet 75. The supports are insulated from each other and from the wall 11 by insulating washers 77 and 73, the latter being integral with a sleeve 71. The fixed contact 95 is carried by an integral extension 93, Fig. 6, of the support 63. The supports 61, 63 are stocked with insulating-plates 83, 85, 87 and a spring 61a in contact with 61 carries the spring contact 99. The spring 61a is overlaid by the insulating layer 85 to insulate the spring from the armature 39. The stack is secured by rivets 91 to a third support 81. The rivets are insulated from the contacts by sleeves 89. Support 63 is connected by rivet 75 to terminal 67 and support 61 is held in contact with terminal 60. Specification 804,868 is referred to.
Patent GB-1523407-A (GB)
Title: Electric circuit breakers
IPC: H01H71/52
Filed: 1977-07-20
Abstract: 1523407 Automatic circuit breakers DORMAN SMITH SWITCHGEAR Ltd 20 July 1977 [9 Sept 1976] 37315/76 Heading H1N An electric circuit breaker having a movable contact arm 21 coupled to a normally latched trip arm 29 by a toggle linkage 31, 34 and a pivoted dolly 25 connected by a spring 36 so as to be movable to straighten the toggle linkage for contact closure and to collapse the linkage for contact opening also has stationary abutment member 37 disposed so as to be abbutted by at least one link of the toggle linkage when the trip arm is released and present contactclosing movement of the contact arm if the dolley is moved to the on position.
Patent GB-814422-A (GB)
Title: Improvements in automatic work-handling mechanism for lathes and similar machine tools
IPC: B23Q7/03
Filed: 1956-12-06
Abstract: 814,422. Machine-tool details. SENECA FALLS MACHINE CO. Dec. 6, 1956 [Oct. 9, 1956], No. 37361/56. Class 83 (3). [Also in Group XXX] Apparatus for supplying and removing new and finished workpieces respectively to and from automatic loading and unloading mechanisms in a lathe &c. comprises first conveyermeans for carrying a new workpiece to a loading- station, and second conveyer means for carrying a finished workpiece away from an unloading- station, and means for moving the two conveyer means simultaneously towards the loading and unloading stations respectively and then simultaneously away therefrom. The mechanism is particularly suitable for work-handling-devices for inserting and withdrawing work in lathes, as described in Specification 724,815. Such a device is shown, diagrammatically, in the position away from the lathe, at A, Fig. 1. A tubular framework F supports a pair of sprocketchains 35 arranged in a triangular form and passing along a guide-bar 37 on the top surface of the frame. V-shaped support-members are secured to the top run of the chains and a fresh workpiece W2, to be fed to the machine, is supplied to the support-members when the latter are in their outermost position. A rackbar 42 engages a gear secured to the shaft of the lower sprocket-wheels 32. The rack is moved by an air-cylinder, the chain-conveyer moving in towards the centre of the frame with the workpiece W2. In this position, the workpiece lies over support-members 60 which are moved upwards in a substantially vertical direction by linkwork 63, 64, and air-cylinders 67, to deliver the work to the grippers of the device A. A similar chain-conveyer 55 opposite conveyer 35 is also driven from the rack 42 but at a higher speed. A support-member 70 collects a finished workpiece W from the device A while the conveyer 55 is in its innermost position and then, on simultaneous outward and opposite movement of the two conveyers, the workpiece W is transferred to a position above a further supportmember 90. This is moved vertically by an air-cylinder to lift the workpiece past a tilting delivery shoot 100 to a gauging device G (not described). If the workpiece passes into the gauge the support is lowered and the work caught by the shoot 100 and discharged. If, however, the work does not pass the gauge, a limit-switch 98 is operated and the apparatus is stopped.
Patent GB-1175500-A (GB)
Title: Improvements in or relating to the Production of Ethylene Oxide
IPC: F01K23/06
Filed: 1968-08-06
Abstract: 1,175,500. Ethylene oxide. SNAM PROGETTI S.p.A. 6 Aug., 1968 [8 Aug., 1967], No. 37563/68. Addition to 1,170,193. Heading C2C. Ethylene oxide is produced in a continuous process which comprises catalytically oxidizing ethylene with air at elevated pressure separating all or substantially all of the ethylene oxide from the resulting discharge gases which contain unreacted ethylene, allowing or causing the remaining discharge gases to expand in and to drive an expansion turbine, burning the ethylene in the resulting expanded discharge gases with an auxiliary fuel and utilizing the heat evolved to produce steam or superheated steam. The expansion turbine may be coupled to a compressor used for producing the compressed air required for the catalytic oxidation of ethylene. The compressor may also be driven by the steam or superheated steam produced.
Patent GB-909024-A (GB)
Title: Improvements relating to drop pipes for fire sprinklers
Inventor: BRAY GEDDES ALAN
IPC: A62C37/10
Filed: 1960-11-02
Abstract: 909,024. Pipe joints. MATHER & PLATT Ltd. Aug. 16, 1961 [Nov. 2, 1960], No. 37629/60. Class 99(1). A drop pipe of variable length for use with fire extinguishing sprinklers h is divided into two parts a, b, a being of larger diameter so that b is capable of passing freely into it, both pipes being externally threaded and screwing into parts of larger and smaller bore of a coupling c with a compressible washer d, e.g. of neoprene between the end of the larger size and a tapering internal surface of the coupling, so that when the coupling is turned to screw the two parts a, b into one another the washer is compressed into the threads of the smaller diameter pipe.
Patent GB-934388-A (GB)
Title: Improvements in carpet sweepers
Inventor: KENYON JAMES MAXWELL
IPC: A47L11/33
Filed: 1961-10-20
Abstract: 934,388. Carpet sweepers; handles. ENTWISLE & KENYON Ltd. Oct. 17, 1962 [Oct. 20, 1961], No. 37676/61. Classes 61 and 138 (1). In a carpet sweeper the central portion a of the casing A is depressed and the bail E passes through the sides of the depression a so that the central portion e<SP>1</SP> projects above the depression a and the end portions e lie beneath the easing A and pass through apertures in plates F carrying the dust pans C, the apertures forming bearings in which the bail can pivot. The ends e<SP>2</SP> of the bail are bent towards the axis d of the brush shaft and engage cam surfaces g when the central portion of the bail is vertical, thereby retaining it in that position.
Patent GB-796760-A (GB)
Title: An improved apparatus for use in shearing sheep
IPC: B26B19/24
Filed: 1956-12-10
Abstract: 796,760. Animal holding appliances. BORTHWICK, J. Dec. 10, 1956 [Dec. 22, 1955], No. 37699/56. Class 81 (2). An appliance for holding sheep during shearing comprises a platform 15 on a frame 20 beneath which there is a rotatable shaft 19 carrying four leg shackles 43 on upstanding pillars 29, 30. These are counterbalanced by weights 27 on radial arms 28. The entire frame is mounted for rotational movement about a vertical pillar 16 on a base 10. By this means, with the sheep on its back on the table with its legs held in the shackles, it can be rolled to one side or the other by the pivoted arrangement of shackles.
Patent GB-917527-A (GB)
Title: Improvements relating to tool bars for attachment to tractors
Inventor: HOLT VERNON HARRISON
IPC: A01B39/06
Filed: 1958-11-24
Abstract: 917,527. Agricultural implements. HOLT BRACKEN BREAKER CO. Ltd. July 31, 1959 [Nov. 24, 1958], No. 37744/58. Classes 6(1) and 6(3). A tool bar for attachment to a tractor is of saddleback form comprising an upper crossbar 1 rigidly connected by depending struts 10, 11, 12 to two lower bars 2 to which are attached implements 7. The tool bar is provided with means for attachment to the hydraulic lifting mechanism of a tractor. Specification 742,965 is referred to.
Patent GB-1023648-A (GB)
Title: Improvements in and relating to mixed flow fans or compressors
Inventor: MYLES DENIS JAMES
IPC: F04D29/54
Filed: 1962-10-05
Abstract: 1,023,648. Mixed-flow fans and compressors. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. Oct. 7, 1963 [Oct. 5, 1962], No. 37808/62. Heading F1C. In a mixed-flow fan or compressor, in which the flow leaves the impeller in a direction intermediate the axial and radial directions, flow straightening vanes disposed immediately upstream of the impeller are approximately 25% (e.g. 1¢ inches) of the blade height of the impeller at inlet. There are preferably six vanes extending radially inwardly from the inlet passage wall. These vanes, which are symmetrical about their chord, permit the fan to operate down to at least 0À4 of the design load before unstable conditions arise. Examples of optimum values of the ratios of the chordal length of the vanes to their pitch, and of the gap between the vanes and impeller blades to the internal diameter of the inlet passage are 0À5 and 0À0125 respectively.
Patent GB-1171599-A (GB)
Title: Dermatological Composition
IPC: A61K31/57
Filed: 1968-08-08
Abstract: 1,171,599. Dermatological composition. E. MERCK A.G. 8 Aug., 1968 [27 Jan., 1968], No. 37908/68. Heading A5B. A dermatological composition comprises substantially equal parts by weight of 9-alphafluoro - 16 - methylene-prednisolone-21-acetate and gentamycin sulphate, the content of the latter being referred to the free base, in a conventional carrier.
Patent GB-1122983-A (GB)
Title: Improvements in or relating to wheel chairs
IPC: A61G5/08
Filed: 1964-09-17
Abstract: 1,122,983. Collapsible wheel chairs. R. G. BIDDLE. 1 Dec., 1965 [17 Sept., 1964], No. 37947/64. Heading B7B. A collapsible wheel chair comprises two tubular aluminium side frames 10 connected together by a flexible resilient plastics seat and back 33, 32 in tension, and by three pairs of aluminium links 11, 12, 13, each pair comprising links 25, 26 pivoted together at 28 and pivoted to the side frames 10 at 29, so that they are movable through an overcentre position when the chair is opened from its collapsed state. Each side frame 10 comprises a back portion 14 which is either unitary or comprises two parts 23, 24 pivoted together. An arm rest support 37 engages telescopically, and vertically adjustably in the front tubes 20 and carries a stud 53 selectively engageable in and latchable in one of a pair of apertures in a bracket secured to the part 24, so that the rake of the back 33 may be adjusted. The wheels 58 are detachably retained in bearing blocks on the frames 10 by spring loaded plungers. A brake finger 68 on each frame is movable by a handle 75 through an overcentre position into the "on" position. A steel or aluminium footrest support 42 is removably mounted on each front tube 20 by means of a bracket 43 having a mouthed slot 46 engageable on a peg 46a on the tube 20. Each foot rest 41 is carried by a tube 83 engaging telescopically in the support 42, the tube 83 and the support 42 having apertures in which can be engaged a peg carried by a spring clip 85.
Patent GB-960959-A (GB)
Title: Photographic camera
IPC: G03B7/12
Filed: 1962-10-09
Abstract: 960,959. Photographic cameras with built in exposure meters. AGFA A. G. Oct. 9, 1962 [Oct. 11, 1961], No. 38256/62. Heading G2A. A photographic camera with an automatic exposure regulating device including a moving coil galvanometer 3 with a needle member 64 and an exploratory device therefore comprising a clamping jaw 67, has a correction mechanism to vary the relative positions of member 64 and jaw 67 at constant illumination to allow for interchangeable lenses with different maximum relative apertures, the mechanism being responsive to means on the lens mounts and also to the setting of at least one preselectable exposure value setting means, the mechanism including a lever system having a transmission lever 11, pivotable by the setting means and pivotably and bodily displaceable by insertion of a lens, the latter movement of the lever 11 being transmitted to move an exposure factor scale for the lens into a viewing position. In the exbodiment shown rotation of a disc 20 moves, by means of a gear and rack, lever 15, causing lever 11 to pivot on a pin in slot 13 to move lever 6 and by means of rack and gear to rotate the galvanometer 3 to allow for the film sensitivity. When a lens is inserted by a rotary movement a lug 46 on its mount engages  @ 45 on a lever 31 and rotates the lever about 37 and end 30b to pivot a lever 53 about a pin 54 by an amount depending on the size of lug 46. This causes a slide 58 to move and a different set of diaphragm aperture values appears in window 2. Rotation of ring 40 to set the shutter speed causes lever 38 to pivot lever 31 about pin 32 and lever 31 rotates lever 11 about pin 14 and causes lever 6 to rotate the galvanometer to allow for the shutter speed. When shutter release knob 79 is depressed it frees a lever 68 which is urged downwards until jaw 67 engages pointer 64 and sets the diaphragm by means of a pin 80 engaging a lug 81 on the diaphragm setting ring 82. Another pointer 61 is provided on the galvanometer to move adjacent the scales on lever 58. The camera can be designed for automatic setting of both diaphragm aperture and shutter speed in known manner. In a similar construction for a fixed lens camera the lever 31 is replaced by a simple level pivotedon the end of lever 11 and which has a lug which is engaged by another lug on the shutter speed setting ring to move the levers and rotate the galvanometer. In the embodiment shown in Fig. 4, for a fixed lens camera, the lever 6 of Fig. 2 is replaced by lever 164 which is coupled by pin 163 to a disc 161 on arm 160 of which has a planet gear 158 pivoted on it. Gear 158 meshes with sun gears 156,157 on discs 154, 155 respectively which have slots 168, 169 engaged by pins on setting discs 150, 151 for film sensitivity and shutter speed respectively.
Patent GB-1157357-A (GB)
Title: Agricultural Improvements
Inventor: BARNSLEY GEOFFREY EDWIN
Filed: 1967-08-21
Abstract: 1,157,357. Increasing sugar yield. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 5 June, 1968 [21 Aug., 1967], No. 38433/67. Addition to 1,103,000. Heading C1B. Sugar cane shoots are treated with abscisic acid at least 4 weeks before harvesting. The plants may be 4 months old. At least 15 mg. of abscisic acid per sugar cane shoot may be applied. The abscisic acid may be applied as a composition in the form of powder, granules, paste, emulsion, or solution. Known carriers, surface active agents, and protective colloids may be present. The composition may be slow release. Abscisic acid is 3-methyl-5-(1-hydroxy- 4 - oxo - 2,6,6 - trimethyl - 2 - cyclohexen - 1 - yl) - 2,4 - pentadienoic acid.