baber/WOPTO huggingface dataset:
Patent GB-248403-A (GB)
Title: Improvements relating to perforating glass
IPC: C03B23/26
Filed: 1926-03-02
Abstract: 248,403. Corning Glass Works, (Assignees of Littlelon, J. T., and Smith, C. R.). March 2, 1925, [Convention date]. Perforating.-A method of perforating a glass article consists in heating the article to the temperature at which the glass will conduct electricity, and then passing a current through the body of the article so that the glass is melted by the heat resulting from the resistance it offers to the passage of the current. A device for perforating a flat piece of glass comprises a table 11 having a top 12 of insulating material, a number of electrodes 22 supported above the table, and a corresponding number of lower electrodes 25 supported in an opening 13 in the table. The upper electrodes can be raised or lowered by handles 35 and the lower electrodes can be depressed against the action of springs 52 by means of a hand lever 58. A die 15, provided with holes corresponding to the perforations required in the glass, is fitted in a recess above the opening 13. In use, a piece of glass 100, heated to the necessary temperature, is placed on the table and is pushed against stops 16 by a holder 19. The upper electrodes are now lowered into contact with the glass, the lower electrodes being held against the glass by the springs 52. The electric current from the leads 90, 91 passes through the hot glass between the electrodes and raises its temperature. When the glass is soft, the handles 35 are moved to push the upper electrodes through the glass to form the perforations, the lever 58 being moved at the same time to remove the lower electrodes. The parts of the apparatus may be suitably arranged to enable the perforations to be made in cylinders or other partlyenclosed vessels, or such articles as dental shields. The knobs of glass forced out by the electrodes may be formed into various shapes, such as beads, by suitably shaping the electrodes. The perforation could also be formed by using a hollow electrode and directing a jet of air through it instead of forcing the electrode itself through the glass. When large perforations are being made through thick pieces of glass, the electrodes may be separated when the current flows, so that the arc thus formed may assist in softening the glass. The operation is facilitated by the use of heat-resisting glasses such as those described in Specification 100,738.
Patent GB-567072-A (GB)
Title: Screw and jet propelled aircraft
IPC: B64D39/00
Filed: 1943-04-14
Abstract: 567,072. Aircraft. KATZ, A. April 14, 1943, No. 5945. [Class 4] An aircraft is provided with longitudinal passages through the fuselage or wings, or both, in which are situated propellers driven by explosion reaction turbines, or turbo-propeller units, the exhaust from which affords additional jet propulsion, and may have also vertical passages similarly furnished to provide additional lift at starting and landing. As shown, two longitudinal passages 1 are provided in the body and one vertical passage 2, each containing turbo-propeller units 3 as described in Specification 557,952, having contra-rotating propellers 4, 5. Alternatively, there may be one longitudinal passage and two vertical passages or a number of each. The rear ends of the passages 1 are flattened and fitted with upper and lower flaps 15 to control the speed of the jet. The fuel for the turbo-propeller units is a solid, plastic or powdered propellant gunpowder as described in Specification 557,952. The passages 1 may have flaps 10 to deflect hot gases through conduits to heat the cabin and the leading edges 12, 13 of the passages and wings to prevent ice formation.
Patent GB-525510-A (GB)
Title: Improvements in or relating to electromagnetic circuit-breakers and the like
IPC: H01H47/06
Filed: 1939-02-23
Abstract: 525,510. Electromagnetic switches. WHIPP & BOURNE, Ltd., and WHIPP, F. Feb. 23, 1939, No. 5978. [Class 38 (v)] A " no-volt circuit-breaker has two coils 23, 24, one coil 24 of low resistance serving to close the switch while the coil 23 of higher resistance is short-circuited, and the coil 23 serving to maintain the switch closed either by itself or, as shown, in conjunction with the coil 24. On moving a switch 12 into engagement with the negative line 11 a circuit is completed to the coil 24 causing closure of the main contacts 13 and auxiliary contacts 14 and the moving of a change-over switch 15. The switch 12 is now opened and the final result is a maintaining circuit through coils 23, 24 and economy resistances 21, 22. Should an overload occur, an overload switch closes contacts 20 which shortcircuit the coils 23, 24 and release the switch which moves into its original position. Specification 214,667, [Class 38 (v)], is referred to.
Patent GB-397207-A (GB)
Title: Improved battery terminal
IPC: H01R11/28
Filed: 1932-02-29
Abstract: 397,207. Wire terminals. RENNIE, D., Viewfield, Alva, Clackmannanshire.- (Rennie, T. A. ; Glenburnie, Hannans, Maryland, U.S.A.) Feb. 29, 1932, No. 6003. [Clasa 38 (i).] A battery terminal consists of two similar halves held together by a central bolt C and adapted to grip between them at one end A the battery post, and at the other end B, which may be provided with serrations or grooves, the starting cable of a motor-car.
Patent GB-611717-A (GB)
Title: Improvements in or relating to oiling devices for spinning machines of the dead spindle type
IPC: D01H7/20
Filed: 1945-03-12
Abstract: 611,717. Lubricating devices for spinning and like spindles. ARRAGG, G. M. March 12, 1945, No. 6136. Convention date, Feb. 4, 1944. [Class 120(ii)] [Also in Group XXXIV] An oiling device for a yarn-package carrying tube and whirl rotating on a dead spindle, as in a cap spinning machine, has an oil reservoir comprising an oil cup supported on the lifter rail and containing an oil pad, a top for the reservoir having a bottom portion extending inside the oil cup, and a whirl support positioned inside the reservoir top. The upper edge of the top is positioned closely adjacent the whirl. In one modification, a bottom portion 14 of a reservoir top D fits closely within the upturned flange of an oil cup C and outside an oil-pad P. Securely held in the top D is a whirl support B having oil passages and preferably formed with a recess 35 for a bearing washer F, also optional, which may be made of fibre and forms a supporting bearing for the whirl W and tube T. The whirl support B may be held in a channel 17 or a similar support in the top D or may be welded or shrunk on to the inside of the top. The lifter rail L may be recessed below the oil cup C to hold an absorbent pad for the removal of excess oil. To prevent rotation of the cup C a finger may be welded to it to bear against the lifter rail L.
Patent GB-1199502-A (GB)
Title: Camera for Use with Sub-Standard Size Film.
IPC: G03B7/24
Filed: 1968-02-08
Abstract: 1,199,502. Cameras and cassettes therefor. AGFA-GEVAERT A.G. Feb.8, 1968 [Feb.11, 1967], No.6256/68. Heading G2A. A camera has a chamber 3 into which a cassette can be inserted laterally, and a feeler lever 6 of which an end 6a extends into the said chamber to sense a control feature (i.e. film sensitivity) on the cassette. Lever 6 is pivotally mounted on a slide 4 which is loaded by a spring 8 into the position of Fig.1 in which a lid for the chamber is locked in place. This is unlocked by pushing a further spring-loaded slide 9 upwards (direction f), which engages and pushes slide 4 in the same direction. An oblique surface 6b of lever 6 engages against an edge of a slot 16 in the chamber wall 22, so that end 6a of lever 6 is pivoted out of the chamber (direction h). Thus a cassette may be inserted without damage to lever 6. A further spring-loaded lever 20 pivoted on a pin 1, which can move a filter into the light path, has an extension 20a which also extends into the chamber 3. This lever is likewise pivoted out of the chamber as slide 9 moves upwards, a sloping edge 11 thereof engaging a lug 12 of lever 20, and so pivoting it in direction g. A spring catch 17 engages behind an edge 18 of slide 9, to hold the mechanism in the "lid unlocked" position.
Patent GB-1398198-A (GB)
Title: State-of-charge indicators for electrical batteries
IPC: H01M10/48
Filed: 1973-02-09
Abstract: 1398198 State of charge indicating arrangement F J COOK 7 Feb 1974 [9 Feb 1973] 6361/73 Heading H1B The cell 1 of a lead-acid storage battery includes a hydrostatic pressure-responsive device consisting of a tube 4 having an enlarged lower end 5 open at 6 and receiving paraffin oil producing an interface 8 with the electrolyte. Since the electrolyte density varies with stateof-charge the level of interface 8 varies accordingly and a magnified variation of this level occurs in the tube 4 at 9. The tube 4 is transparent and the level 9 may be indicated remotely by a series of glass-fibre light guides having portions 10 energized by a source 11 of white light, the portions 13 giving indications at the remote position 14. In modifications (not shown) the pressure-responsive device may consist of a compressible bulb situated at the lower end of the tube 4 or the device may comprise a pressure-sensitive transistor and the tube 4 be omitted. In another modification (not shown) a float on the oil level 9 may operate a microswitch to give an indication.
Patent GB-663929-A (GB)
Title: Wet plate clutch
IPC: F16D13/64
Filed: 1949-03-09
Abstract: 663,929. Friction clutches. TRIGGS, W. W. (Caterpillar Tractor Co.). March 9, 1949, No. 6404/49. Class 80 (ii) In a multi-plate clutch of the kind in which the working surfaces operate in a bath of liquid coolant, co-acting clutch plates 20, 24, Fig. 2, are spaced apart on declutching by coil springs 57 mounted in apertures in alternate clutch plates and acting on the adjacent plate or plates as through cap members 58 whose outward move ment is limited by the abutment of flanges thereon against rings 6( pressed into the apertures. As shown, driver plates 20, Fig. 1, slid ably splined on a gear shaped member 21 fast or a driven shaft 14, carry friction facings 22, and the springs 57 are mounted both in driving plates 24 slidably splined to a cover plate 18, and in an axially fixed end driving plate 17, both the plates 18, 17 being bolted to an engine flywheel 10. The rearmost plate 24 has lugs 25 co-acting with clutch disengaging springs 27, and lugs 29 carrying a ring 30 acted on by a toggle and cam clutch-operating linkage 40, 37, 31 incorporating a split collar 33 threadedly engaged with a supporting hub 34 for clutch adjustment and normally clamped thereto by a bolt 36. Either the surfaces of the plates 24 or, as shown, the friction facings 22 have a single spiral groove 45, Fig. 4, broken by radial grooves 46, these grooves 45, 46 being provided to circulate cooling oil past the clutch plates even during clutch engagement. Oil is pumped through passages 47, 48, 50 and collects in the concave webs of the gear shaped member 21 from which it passes under centrifugal action via ducts 51 to the plate working surfaces, its entry to which is preferably assisted by bevels 55 on the plates 24. The plate spacing springs may be disposed in the plates 20 instead of the plates 24, as shown in Fig. 4, where spacing assemblies comprising two springs 63 acting at one side only of the plate through a cap 62 retained by members 64 riveted to the plate are disposed at intervals round the plate, alternate assemblies acting at opposite sides thereof.
Patent GB-525731-A (GB)
Title: Improvements in compressed air operated high potential switches
IPC: H01H33/30
Filed: 1939-02-27
Abstract: 525,731. Actuation of switches. HUNDT & WEBER GES. Feb. 27, 1939, No. 6445. Convention date, Feb. 28, 1938. [Class 38 (v)] [Also in Group XXIX] In a high potential electric switch operated by compressed air, opening of a valve admits fluid pressure to another valve which is opened with a snap-action to admit fluid pressure to the main actuating device. In one construction, compressed air enters through a connection i and passes through a chamber 11 and a passage d to a cylinder a to move a piston b connected by a rod c to the switch mechanism. A valve w may close this path. Compressed air also passes through a passage k and past a key valve r which is opened against spring pressure by the upward movement of a piston p which slides in a cylinder n and together with a piston q is carried on a spindle o which is moved manually, electrically, or mechanically. Compressed air allowed through the valve r presses down a cylinder u, which carries the valves w, against a spring h and a snap action toggle device comprising two levers 10 having slides y located in guides z joined by tension springs y'. The cylinder q blocks a passage s and prevents air from reaching the underside of the piston u which moves down slowly until upon passing the dead centre position it moves suddenly to open the passage d and air enters the cylinder a to force down the piston b and operate the switch, the main valve w remaining open when the key valve r is allowed to close. At the end of its stroke the piston b uncovers ports f which connect the system to atmosphere, the pressure above the piston u is reduced and spring h causes the valve w to close with a snap action, leaving the device in order for the next operation. In a modification a second key valve is provided which operates a slide valve controlling ports in the cylinder a above and below the piston b which may thereby be operated in either direction by compressed air. It is also described that uncovering of the ports f may connect the compressed air in the cylinder a to the underside of the cylinder u to aid the spring h in closing the valve w.
Patent GB-108330-A (GB)
Title: Improvements in or relating to Systems of Telegraphy.
Inventor: HAY CHARLES EDWARD
IPC: H04L27/24
Filed: 1916-05-05
Abstract: 108,330. Hay, C. E. May 5, 1916. Drawings to Specification. Dynamos, regulating.-An alternator used in a telegraph system is provided with tappings which are selectively earthed for signalling purposes, the alternator being so designed that the selfinduction and resistance of the windings between the tappings change in the same ratio. This is effected by varying the resistance of the wire employed in successive turns or by inserting non- inductive resistances between the tappings in series with the turns.
Patent GB-1537409-A (GB)
Title: Pilot regulator
IPC: F16K7/07
Filed: 1977-02-17
Abstract: 1537409 Fluid-pressure servomotor systems D N JOHNSON 17 Feb 1977 [18 Feb 1976] 06613/77 Heading G3P A pilot valve 12 controlling a main valve 14 has a chamber 60 in which the pressure for actuating the main valve is controlled by a valve 66 cooperating with a vent 62, a further chamber 80 being connected to the chamber 60 through a restrictor 82 to provide a reset action. The pressure regulated by the main valve acts through a conduit 78 on the valve 66 in opposition to a reference pressure 74 and a spring 72. The chamber 60 is supplied from the upstream side of the main valve through a further restrictor 58. The size of restrictor 82 may be adjusted and the chamber 80 serves as a dashpot when liquids rather than gases are to be controlled.
Patent GB-1215453-A (GB)
Title: A new or improved electrical space heater
Inventor: CHAMBERS RONALD
IPC: F24H3/04
Filed: 1967-02-11
Abstract: 1,215,453. Unit air heaters. CRESSALL MFG. CO. Ltd. 16 Feb., 1968 [11 Feb., 1967], No. 6638/67. Heading F4V. [Also in Divisions H2 and H3-H5] An electric fan heater for use with a normal supply and an off-peak supply has two electric heating circuits each with its own set of terminals, and switching means to prevent simultaneous energization of the two heating circuits. The heating resistance is in three sections 20, 21, 22 in the fan outlet 18, each section comprising a helically coiled conductor which extends in horizontal runs transverse to the air flow and is supported at spaced points by the edges of plate insulators extending in the flow direction. Air inlets are provided in the sides and end wall of the heater and the switching means is mounted in the top right hand quarter of the heater housing. The fan speed is automatically controlled to suit the power dissipation. The heater is controlled by a room thermostat which may be included in the secondary circuit of a step-down transformer. The fan may be energized alone at any time.
Patent GB-609072-A (GB)
Title: Improvements in and relating to inking mechanism for marking machines
IPC: B41F31/04
Filed: 1946-03-05
Abstract: 609,072. Printing-machines. HUGHES, R. M. (Markem Machine Co.). March 5, 1946, No. 6818. [Class 100(ii)] Inking - apparatus, In inking-apparatus for a printing- machine, comprising an inking-roller 4 for supplying ink to a cylinder 2, the roller 4 is rotatably mounted in a housing 3 having an open side 5 through which the roller contacts the cylinder 2, and is inked by means of a combined reservoir and doctor 12 which is separate from the housing 3 and the front wall 16 of which is lower than the other walls, the member 12 being supported with the upper edge 17 of the wall 16 closely adjacent and tangential to the roller 4 whereby when the reservoir is filled with ink to a level above the wall 16 the ink above contacts with the roller 4 and the wall 16 constitutes a doctor. The latter tapers to a knife-edge, and the side walls 15 of the reservoir are concaved at 28. The reservoir is adjustable about a pivot-shaft 19 by means of a central screw 20 passing through the wall of the housing 3, and two stop screws engaging tapped holes in the same wall and bearing against the rear wall of the reservoir. The housing 3 is removably fixed to a rod 18 by screws 30, and the shaft of the roller 4 is coupled to a shaft driven from the cylinder 2.
Patent GB-100638-A (GB)
Title: An Improved Process for Purifying Liqiuds.
IPC: B01D15/00
Filed: 1916-05-12
Abstract: 100,638. Elektro-Osmose Akt.-Ges., (Schwerin Ges. Graf.). June 10, 1915, [Convention date]. Silica.-Amorphous silicic acid is treated with an acid or a base' to render it suitable for purifying liquids. Treatment with an acid, such as hydrochloric acid, renders the silicic acid electropositive and capable of adsorbing electronegative impurities, such as pathogenic germs from drinking water. Treatment with a base, such as ammonia, renders the silicic acid electronegative and capable of adsorbing electropositive impurities.
Patent GB-665018-A (GB)
Title: Improvements relating to rotary pumps
IPC: F04C2/07
Filed: 1949-03-12
Abstract: 665,018. Rotary pumps. SAVERY PUMPS, Ltd., T., and TURTON W. Feb. 13, 1950 [March 12, 1949], No. 6843/49. Class 110(ii) A pump of the geared-vane type having segmental impellers e moving in an annular chamber d has a rotor c and a driving spindle l, separately formed but interengageable. Inlet and outlet ports f are provided and if these are in the body part a they are connected with the chamber d by way of holes q. The rotor c has a diametrically disposed groove h in which slide a pair of rectangular slippers i which are connected to the impellers e by keys j. The spindle l has a pair of flats k which engage the groove h. The spindle is secured axially as by a clip m and a ball-bearing and a sealing ring may be used. More than two impellers may be used; for three impellers three slippers i slide in grooves arranged at 120 degrees to each other. Fig. 5 shows a key p connecting the rotor c with the spindle 1. Holes q also facilitate lubrication. Impellers may be provided in annular chambers situated on both sides of the rotor. Each annular chamber may be adjustable through a rotatable eccentric to vary the capacity of the pump.
Patent GB-1524506-A (GB)
Title: Method and apparatus for measuring the time interval between two pulse signals
IPC: G01V1/30
Filed: 1977-02-18
Abstract: 1524506 Ultrasonic thickness measurement KRAUTKRAMER GmbH 18 Feb 1977 [23 Feb 1976] 06884/77 Heading G1G [Also in Division H3] In e.g. ultrasonic thickness measurement, the time interval t x  between two echo pulses of the same or opposite polarity is measured digitally by accumulating counts during the base line lengths t 1 , t 3  of the two pulses, with reference to respective threshold levels independently adjustable above the background noise level 27, and in the interval t 2  between the end of the first pulse and start of the second pulse, the final result being equivalent to Three different circuits are described. In Fig. 3 (not shown) a single counter counts 15 MHz clockpulses during t 1  and t 3  and 30MHz pulses during t 3 . In Fig. 5 (not shown) a first counter counts clockpulses for t 1  and t 3 , the total then being divided by 2 and added to the count in a second counter counting clockpulses of the same frequency for t 2 . In Fig. 6 (not shown) a first counter counts clockpulses for t 1  + t 2  and a second counter for t2 + t3, the counts being summed and divided by 2.
Patent GB-398741-A (GB)
Title: Improvements in or relating to box strap seals or fasteners
IPC: B65D63/06
Filed: 1933-03-07
Abstract: 398,741. Labels &c. DUNN, J., Carmine, Lower Ham Road, Kingston, Surrey March 7, 1933, No. 6918. [Class 73.] A tag or label 11, which may be of metal &c. embossed with names &c., or may be covered with paper &c. for written inscriptions, is secured under a metal seal or fastener 1 applied to the overlapping ends 13, 14 of a box strap by passing a reduced end 12 of the label through slots 6, 7 in the fastener, over a depression portion 10 between the slots, and then punching over the downturned sides of the fastener, having projections 2, 3 opposite the slots, to deform the strap about the portion 10 as shown.
Patent GB-453428-A (GB)
Title: A method of arranging current conductors on electrical insulating panets and improved panel
IPC: H05K3/28
Filed: 1935-03-05
Abstract: 453,428. Conductors. JANSEN, F. J. W., Dar es Salaam, Tanganyika, East Africa. March 5, 1935, No. 6938. [Classes 36 and 38 (i)] Conductors for connecting together parts of an electrical apparatus, such as a radio set, are carried by a moulded panel of insulating- material which is formed during moulding with grooves in one or both of its surfaces, the grooves indicating the paths for the connecting conductors which are formed by subsequently filling the grooves wholly or partly with metal, for example, by a squirting or deposition process. The conductors on one side of the panel may run at right angles to those on the other side. Connection between conductors on opposite sides of the panel and between the conductors and parts of the apparatus mounted on the panel, such as valves, may be effected by providing holes in the panel, the walls of the holes being metal coated. The conductors may be formed by coating the whole surface of the panel with metal and then removing the coating, except from the filled up grooves, by grinding. Alternatively, the panel may be covered by a stencil through which the metal is sprayed into the grooves. The panel may be completed by an insulating coating and an outer metal covering.