baber/WOPTO huggingface dataset:
Patent GB-1121624-A (GB)
Title: Improvements in and relating to magetic heads
IPC: G11B5/23
Filed: 1967-03-06
Abstract: 1,121,624. Magnetic recording &c. heads. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 6 March, 1967 [9 March, 1966], No. 10393/67. Heading G5R. A magnetic head for recording, playing back and/or erasing tracks of magnetic records on a carrier adapted to move relatively to the head comprises two polepieces defining between them the operational gap 5 of the head, one polepiece being divided, in the direction of travel of the carrier, into two magnetically insulated portions 2, 3, each portion being connected by a separate yoke 6 or 7 with the other polepiece 1, and each yoke being provided with a coil 8 or 9. The arrangement is such that the coils 8, 9 are usable alternatively in a checking circuit arrangement enabling a comparison between voltages induced in the coils to provide an indication of the position of the operational gap 5 with respect to the axis of symmetry of a track on an associated carrier, and in other circuits for normal recording, play-back and/or erasing purposes.
Patent GB-887215-A (GB)
Title: Improvements in or relating to bags
Inventor: GALLANT TERENCE CHARLES
IPC: B65D81/34
Filed: 1959-03-25
Abstract: 887,215. Bags ; food packaging. METAL BOX CO. Ltd. Jan. 4, 1960 [March 25, 1959], No. 10447/59. Drawings to Specification. Classes 94(1) and 94(2). A bag is made of heat-sealable, impervious material, e.g. plastic or a laminate of plastic and other material, by sealing together the edges of separate sheets, or the free edges of tubes or folded sheets, and including a thread which extends through at least two heatsealings, part being located in the bag, the material of the thread being such as not to fuse with the bag material. Vents are there formed which prevent the bag from rupturing when, containing food, it is boiled, the bag being suspended by the thread with the vents above the level of the boiling water. The thread may be string, nylon, or woven tape and may be impregnated, where appropriate, with a food compatible substance such as a micro-crystalline wax. The thread serves to facilitate opening the bag and may be used to tie the bag to the handle of a saucepan. When the thread is wax-impregnated the vents are sealed by wax during storage but opened by melting of the wax in the vents during boiling.
Patent GB-638867-A (GB)
Title: Improvements in electrodeposition of nickel from an acid bath
IPC: C25D3/18
Filed: 1947-04-19
Abstract: 638,867. Electrodeposition of nickel. UDYLITE CORPORATION. April 19, 1947, No. 10478. Convention date, April 20, 1946. [Class 41] A bath for use in electrodeposition of bright nickel comprises an aqueous acid solution containing one or more nickel salts and also a minor proportion of an alpha or beta unsaturated aliphatic sulphonic acid, sulphonamide or sulphonimide, together with a minor proportion of a soluble N-alkyl pyrazolyl-pyridinium or N-alkyl pyrazolyl-quinolinium quaternary salt. The aliphatic compound may be allyl or vinyl sulphonic acid, allyl or vinyl sulphonamide, allyl or vinyl sulphonimide or a nickel, cobalt, iron, sodium, potassium, or magnesium salt of the sulphonic acid. The pH value of the solution is preferably between 3 and 5. The bath may contain a limited amount of the chloride or sulphate of cobalt or iron. It may also contain as a buffer boric acid, or citrates or formates preferably associated with boric acid. The nickel salts may be drawn from the following : nickel chloride, nickel sulphate, nickel sulphamate, nickel fluoborate, a mixture of nickel chloride with nickel sulphate, nickel sulphamate, or nickel fluoborate, a mixture of nickel fluoborate with nickel sulphate or nickel sulphamate, or a mixture of nickel chloride, nickel sulphate, and nickel fluoborate. Specifications 525,847, 611,483 and 638,868 are referred to.
Patent GB-397242-A (GB)
Title: Variable speed gearing
IPC: F16H29/14
Filed: 1933-02-21
Abstract: 397,242. Variable-speed gearing. KIMBER, W. G., 195, Pear Tree Avenue, Bitterne, Southampton. Feb. 21, 1933, No. 10556/32. [Class 80 (ii).] Continuouslyvariable toothed gearing comprises pivoted toothed segments 5, Figs. 1 and 3, which revolve and come into engagement in succession with a toothed wheel 6, the segments 5 being biased against an adjustable cam 10 by springs 26. The segments 5 are supported on studs 4 on a disc 3 fast on a driving shaft 1. The wheel 6 is fast on a driven shaft 7 offset with respect to the shaft 1. Each segment has a roller 25 which rolls round the periphery of the cam 10 which is turned about a fixed pivot 11, Fig. 5, to assume more or less eccentric positions and, by varying the swing of the segments, to control the speed of the driven shaft 7. As the disc 3 turns clockwise of Fig. 3, a segment at D comes into mesh with the wheel 6. As it passes to position E, it imparts a clockwise drive which is sustained elastically by the spring 26. The drive is direct when the cam 10 is concentric as shown in full lines in Fig. 5. As a lever 14 is turned to the left, the cam 10 is moved to eccentric positions on the right and the speed is reduced until it falls to zero with the lever 14 in position A and the cam as shown in chain lines A<1>. The lever 14 acts to annul the effect of a spring 19 which acts on a freely-pivoted lever 18 so as to balance the load reaction on the cam 10 which pushes the cam 10 towards lower-speed positions. The gearing when controlled by the spring 19 alone varies automatically with the load. The leftward displacement of the manual lever 14 asserts itself by acting on the balance lever 18 against the spring 19 by a finger 16 on the former engaging a lug 17 on the latter. The springs 26 allow of freewheeling on forward drives. To effect reversed driving, the lever 14 is moved further to position B, so raising a segmental cam 22 turning on a fixed pivot 23, which cam takes the reaction of the rollers 25. The cam 22 reinforces the springs 26 in turning the segments 5 clockwise to Fig. 3 about their pivots 4 to impart an anticlockwise drive to the wheel 6. The toothed segments may have their teeth directed outwardly instead of inwardly.
Patent GB-145209-A (GB)
Title: Improvements in or relating to internal-combustion engines
IPC: F02B75/00
Filed: 1919-05-01
Abstract: 145,209. Dickson, H. C. May 1, 1919. Connecting-rods.-In a double-acting engine having outside connecting-rods, the piston controls terminal mixture inlet and outlet ports located in each combustion space. Two rows of doubleacting cylinders may be disposed in the form of a V, as shown in Fig. 1, the pistons being connected to a single crank shaft by rods f, attached to T-shaped members g mounted upon the crankpins.
Patent GB-583466-A (GB)
Title: Improvements in or relating to transformer arrangements for use in electrical signalling systems
IPC: H01F19/04
Filed: 1942-08-05
Abstract: 583,466. Impedance network. GIBBS, D. F., and WRIGHT, C. S. Aug. 5, 1942, No. 10913. [Class 40 (iii)] [Also in Group XXXV] A transforming network having a desired voltage ratio is formed from a corresponding number of delay networks l1, L2, Fig. 1, having equal delay times and connected in parallel at one end and in series at the other. Such an arrangement produces the desired transformation for all frequencies high in relation to the reciprocal of the delay times of the lines. It is shown that the lower limit of the frequencies satisfactorily transformed can be reduced to a value lower than the reciprocal of the delay times of the lines by providing that a greater total magnetic energy is produced by unit currents flowing in the same direction in the wires of each network than by unit currents flowing in opposite directions in such wires. The degree to which this effect is necessary depends on the end to end voltage stresses resulting in each network from the application of a unit voltage to the input end and the effect is produced, in the arrangement shown in Fig. 3, by providing each network with the same number of turns to give the same delay, and winding all the turns in the first network on a bobbin with a magnetic core and all those in the last on a bobbin without a core, the turns of intermediate lines being distributed as indicated by the fractions marked in the Figure, n being the number of networks. The windings may be, according to the impedance desired, coaxial cables in layers or single helices, bifilar windings on, single cylinders or single windings on coaxial cylinders. Lumped additional inductances may be included at intervals in the windings and may be in the form of interleaved sections.
Patent GB-129108-A (GB)
Title: Improvements in Thrust or Collar Bearings.
Inventor: WINGFIELD BERNARD ROBERT
IPC: F16C17/06
Filed: 1918-07-03
Abstract: 129,108. Wingfield, B. R. July 3, 1918. Thrust bearings.-In a thrust or collar bearing having pivoted blocks as described in Specification 875/05, the blocks A are pivoted on hardened steel balls D bearing against spring disks C, C<1> inserted in the backs of the blocks and in a thrust ring F. The balls are mounted in a cage E bolted to the ring F. The blocks A are cast as a ring, and the disks C are inserted and are ground in position before the blocks are separated. Axial adjustment is effected by loose rings H.
Patent GB-456635-A (GB)
Title: Improvements in admission tickets and the like
IPC: B02C18/26
Filed: 1936-04-16
Abstract: 456,635. Tickets. TENSFELDT, E., 12, An der Heerstrasse, Charlottenburg, Berlin. April 16, 1936, No. 10950. Convention date, May 25, 1935. [Class 73] Admission tickets in strip form having a checking section X which is severed along a line of perforations 3, have the checking sections alternately at opposite ends of the ticket whereby a strip comprising several tickets can be folded and all the checking sections severed in one operation. The tickets may be printed on alternate sides of the strip.
Patent GB-853899-A (GB)
Title: Improvements in or relating to duplicating machines
Inventor: BRYER MORRIS
IPC: B41L11/10
Filed: 1956-10-11
Abstract: 853,899. Copying documents; printing processes. NOBEL MACHINERY Ltd. Oct. 11, 1957 [Oct. 11, 1956], No. 11044/56. Class 100(2) In a method of duplicating a pattern or outline a master sheet having the pattern or outline marked thereon is fed from a roller or. spool between a pair of impression rollers on to a rewinding roller or spool, and a continuous sheet of duplicating paper in a dampened state is simultaneously fed between the impression rollers, wherebv the sheets are pressed together to transfer the pattern or outline to the duplicating paper. The impression rollers 4, 5 are mounted on shafts 6, 7, and in half-bearings 2, 3 on frames 1. A screw 11 slides the half bearings to adjust the pressure. The master sheet 9 passes from a spool 12 between the rollers to a spool 15. The duplicating paper 10 passes from a spool 21 over a spirit-dampened wick 24 and between the rollers, after which there may be means to separate it from the master sheet or it may be severed. The shaft 7 is geared to the shaft 6, which is rotated by a hand-wheel 8, and drives the spool 15 through a chain 20 and sprockets 17, 18, the master sheet being wound on the spool at a slightly slower speed than its speed between the rollers to allow it to dry.
Patent GB-743268-A (GB)
Title: Improvements in or relating to circuits embodying tuning-indicators
IPC: H01J31/14
Filed: 1953-04-23
Abstract: 743,268. Cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. April 23, 1953 [April 26, 1952], No. 11216/53. Class 39 (1). [Also in Group XL (c)] In a circuit arrangement comprising a tuning indicator of the kind having a funnelshaped luminescent screen 4, Fig. 1, the potentials applied to the deflecting rods 3 being pre-amplified by two amplifying valves which are preferably located in the same envelope as the indicator electrodes, two beams are emitted from the same cathode 1 in opposite directions, each beam being controlled by a different pair of deflecting rods and either (a) one pair of rods is at a common potential determined by an amplitude modulated circuit and the other pair can alternatively be at different potentials determined by a frequency modulated circuit or (b) each pair of rods are given a potential difference determined by a frequency modulated circuit. The form shown has a grid (not shown), four deflecting rods 3 evenly spaced around the cathode, and luminescent screen 4, all the electrodes being carried by a mica plate 5. Three modes of operation are described. (a) Three rods 3 are connected together and to an amplifier anode and the fourth rod to another amplifier anode, both amplifying systems and the indicating system being in the same envelope. One trace of constant sector angle gives the frequency modulation indication, deflecting to right or left according to the sense of detuning and alternatively the other trace of variable sector angle gives the amplitude modulation indication; (b) a frequency modulation indication only, by cross-connecting rods 3 in pairs and connecting them via amplifiers to points on a discriminator. This causes both traces to rotate in the same direction as one another in a clockwise or anticlockwise direction according to the sense of detuning; (c) a modification of (b) in which adjacent pairs of rods are connected to one another so that the two traces move in opposite directions. This avoids the necessity for a calibrating mark on the tube to indicate correct tuning. The anode is shaped as an obtuse cone or frustum of such a cone. The devices may be used for indicating tuning in radio receivers.
Patent GB-294593-A (GB)
Title: Improvements in and relating to the braking of rail vehicles
IPC: B60T15/04
Filed: 1927-04-27
Abstract: 294,593. Maley, A. W., and Taunton, E. M. April 27, 1927. Skid; fluid-pressure; electric.-In a motor rail vehicle having wheel and track brakes, the brake mechanism is arranged to apply the wheel shoes first and afterwards to apply the track shoes, while partially or wholly releasing the wheel shoes. 'The invention is applicable to pressure or vacuum systems. The release of the wheel brakes is brought about by the movement of the track brake shoe or of its pneumatic piston or any part of the brake mechanism or where the two brakes are operated by separate handles these may be interlocked so that the track brake handle cannot be actuated till the wheel brake is released; or the same valve movement that releases the wheel brakes admits pressure to the track brake; or, as in Fig. 1, the release of the wheel brakes is brought about by the rise of pressure in the track brake cylinder 2. The train pipe 11 of the cylinder 2 is connected to a pneumatic apparatus comprising a diaphragm 15 which is raised by the pressure in cylinder 2 to lift a valve 16 and close the supply pipe 10 and open an exhaust port 17 of the wheel-brake cylinder 1. The cylinders 1, 2 are controlled by inlet valves 6, 8 and exhaust valves 7, 9 contained in a control apparatus 5 at each end of the vehicle. The valves are controlled by the controller handle of the vehicle motors which in part of its movement controls these motors and in another part of its movement controls the brakes, through cams and rocking levers. In the first brake position the wheel brakes are applied, in the next series of positions the track brake is applied and the wheel brake released, also the regenerative or rheostatic brake may be in action over this range of movement, the resistance in the regenerative circuit being gradually reduced. A lap and release position are also provided between the power and brake positions. A magnetic brake may be provided in the regenerative circuit. In a modification, the wheel brake valves are controlled by a separate handle. The wheel brake may be opened to exhaust directly by a cam on the controller spindle on the application of the track brake. The second Provisional Specification also describes an arrangement in which the rise of current in the circuit of a regenerative brake releases the wheel brake by means of a solenoidcontrolled valve. In the case of maximum traction trucks the track brake mav be disposed as described in Specification 267,280.
Patent GB-802029-A (GB)
Title: An adjustable reclining chair or the like article of furniture and a leg-rest arrangement for connection therewith
IPC: A47C1/0355
Filed: 1956-04-13
Abstract: 802,029. Reclining chairs. LORENZ, A. April 13, 1956 [April 21, 1955], No. 11302/56. Class 52(2) A reclining chair with back-rest 16 and seat 18 swingably mounted at 20 on a supporting frame 10 has an arm 40 pivoted to the seat and a controlling link 38, consisting of a bent bar 30 and a board 36 rigid therewith, crossing each other and connected by a pin and slot connection, the link 38 being pivoted to a guiding link 22 and a second link 26 pivoted to the support, while its other end 36 is pivoted to a leg-rest 52 and to a link 64 pivoted to the seat at 70. The arm 40 is also pivoted to a link 50 pivoted to the leg-rest 52 the movements of linkage 22, 26, 38, 40, 50, 52 being controlled in dependence on the movements of the back-rest 16 by means of a link 58 connecting the back-rest to an intermediate point of link 26 at 62. In a modification, a link connects the back-rest to link 22 instead of link 26. In a further modification, Fig. 6, the second link 226 has a rigid rearward extension 274 to which link 258 is pivoted to connect it to back-rest 216. In a still further modification, Fig. 8, the seat is connected by link 364 to the arm 330 instead of being pivoted to board 36.
Patent GB-878928-A (GB)
Title: Liquid fuel combustion apparatus, for jet propulsion engines, gas turbines, or other prime movers
Inventor: WATKINS SIDNEY CONNOR
IPC: F02C7/22
Filed: 1959-04-03
Abstract: 878,928. Generating combustion products under pressure. LUCAS (INDUSTRIES) Ltd., JOSEPH. April 1, 1960 [April 3, 1959], No. 11355/59. Class 51 (1). [Also in Group XXVI] The invention relates to a fuel supply manifold for liquid fuel combustion apparatus such as for a gas-turbine engine of the kind comprising either an annular air casing containing either a single annular flame tube or a plurality of annularly disposed flame tubes, or an annular assembly of flame tubes each disposed in its own tubular air casing. A plurality of body parts 9 is attached to the air casing or air casings 6 of the apparatus at angularly-spaced positions and each body part carries a burner nozzle 8 and has a pair of mutually inclined, oppositely directed and intercommunicating tubular spigots 13, 14 which are in communication with a passage 12 in the body part leading to the burner nozzle. A pair of sleeves 15, 16 are slidably mounted on the spigots 13, 14, each sleeve having a flange by which it is connected to the body part and each sleeve extending beyond the associated spigot and receiving one end of a pipe 17, 18, the other end of the pipe being received in a sleeve connected to an adjacent body part 9. A pair of sealing rings 19, 20 are provided within each sleeve 15, 16 to co-operate with the associated spigot 13, 14 and pipe 17, 18. The body parts 9 are secured to the air casing or casings 6 by means of bolts passing through the flange 10. A second passage 12a is provided in each body part 9, the passage 12a communicating with a pair of spigots 13a, 14a mounted on the body part similarly to the spigots 13, 14. The spigots 13a, 14a are associated with sleeves 15a, 16a and pipes 17a, 18a similarly to the spigots 13, 14. Fuel supply inlet pipes 22, 23 (Fig. 1, not shown), are connected to one of the body parts, fuel from the inlet 22 flowing through the pipes 17, 18 and through the passages 12 in the body parts 9 to the main fuel inlets of the burners 8, while fuel from the inlet 23 flows through the pipes 17a, 18a and through the passages 12a to the idling fuel inlets of the burners 8.
Patent GB-487535-A (GB)
Title: Latch
IPC: E05B65/00
Filed: 1937-04-21
Abstract: 487,535. Latches. WILSON, E. C., WILSON, E. P., FARRAR, E. J., and BOOTH, A. B. April 21, 1937, No. 11440. Convention date, April 21, 1936. [Class 44] A latch mechanism has a single oscillatory latching arm 31 adapted to co-operate with a keeper 11 together with a catch member 49 which holds the arm in a partially open position until released by the engagement of the arm with the keeper. The end of the arm 31 carries a wrist pin 32 supporting a roller 33 which co-operates with the surface 23 of the keeper 11. The surface 23 is so shaped that the door 16 is drawn onto its sealing gasket at first quickly and then slowly. The arm 31 is carried by a shaft 29 to which is attached a bifurcated portion 38, and the handle 40 is free to rotate on this shaft. To release the latch from the closed position shown in Fig. 5 the handle 40 is moved outwards and the face 42 engaging shoulder 43 of the lug 52 attached to the portion 38 causes the crank-arm 31 to be swung sufficiently to bring the roller 33 clear of the keeper. To hold the crank-arm in the partially open position against the action of springs 34 a catch member 49 is provided comprising a spring loaded detent bar 49a pivoted at 50. When the handle 40 is moved outwards sufficiently to release the crank-arm 31 a connecting spring 55 causes the arm 49a to be pulled down against the spring 53 so that the lug S on the member 38 may engage an opening 51 therein. The spring 55 has an elongated hook connection 56a with the bar so that arm 49a does not commence to move until the handle has been partially opened. When the lug S has engaged the opening 51 the handle is released and returned to the closed position by the spring 45. If the door is now slammed the nose of the keeper will cause the arm 31 and lug S to rotate clockwise which will allow the catch member 49a to return to its inoperative position under the action of the spring 53 and this in turn will allow the powerful springs 34 to pull the arm 31 into the keeper 11. The catch member may be pivoted in front of the latch, and an horizontal spring used.
Patent GB-654437-A (GB)
Title: Improvements in or relating to high speed aeroplanes
Inventor: BECK GEOFFREY EDWARD
IPC: H01Q1/28
Filed: 1948-04-26
Abstract: 654,437. Aircraft structures. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 26, 1948, No. 11451. [Class 4] [Also in Group XL (c)] In an aeroplane having a metal structure, aportion of the structure is insulated from the main structure and used as an aerial. The insulated portion may comprise an aileron, elevator, fin or rudder or the tip of the fin, main-plane or tailplane and it may be fed to constitute a dipole or unipole. As shown in the Figure, the metallic frame members 4 of the fin are connected to the corresponding members 5 of the fuselage by insulators 3 and the metal skin of the fin and upper portion of the rudder is separated from the metal skin of the fuselage and lower portion of the rudder by an insulating fairing 6, a singlewire feeder 9 being connected to the fin internally. In a modification, Fig. 2 (not shown), the insulated portion comprises the upper half of the fin and rudder, and the two conductors of a twin feeder are connected respectively to the upper and lower conductive portions of the fin adjacent the insulating section. In order to reduce precipitation static due to corona discharge, the trailing edge of the fin is rounded and faired off to a knife edge by a dielectric moulding, Fig. 3 (not shown).