baber/WOPTO huggingface dataset:
Patent GB-936924-A (GB)
Title: Improvements in or relating to devices for automatically operating the locking members of automatic couplers for rail vehicles
Inventor: WHITEHOUSE GLENROY DOUGLAS
IPC: B61G7/04
Filed: 1961-02-14
Abstract: 936,924. Automatic uncoupling devices. ENGLISH STEEL CORPORATION Ltd. Feb. 6, 1962 [Feb. 14, 1961], No. 5360/61. Class 103(5). A device for automatically swinging a pivoted lock operating member 14 of an automatic coupler such as that shown in Specification 936,923 Fig. 3, comprises a carrier 24, Figs. 4, 5 pivoted on journals 22 to brackets 20 in a well beneath the track 19, a plate 25 which may slide transversely of the carrier, a pair of upstanding walls 46 on the slide forming between them a tapering mouth 47, a throat 49, and a widened portion 50, and a spring controlled plunger 34 connected to the carrier 24 at 32 to control the pivoting of the carrier. In operation, coupled up couplers A, B, Figs. 7, 10, are carried along by their cars so that their depending members 14, 15 pass through the mouth and throat of the slide, the pivoted members 14 being swung towards the fixed depending projections 15 to unlock the couplers. The slide 25 must however reciprocate transversely of the carrier 24 along a pin and slot connection 28, 29, to allow the projections 15 to pass through the throat. If the slide is at a level which obstructs the path of a part 59 of the underside of a car, then the part 59 may ride up and down inclined surfaces 53, 55 and 54, 56, the slide and carrier being depressed against the action of the plunger 34. Resetting of the locking members may be effected by another track mounted device (not shown).
Patent GB-554407-A (GB)
Title: Improvements in the production of pantothenic acid
IPC: C07C233/46
Filed: 1941-04-29
Abstract: 554,407. Pantothenic acid. MERCK & CO., Inc. April 29, 1941, No. 5522. Convention. date, July 3, 1940. [Class 2 (iii)] Dextro or laevo pantothenic acid is produced by reacting a #-alanine ester with dextro or laevo α-hydroxy-##-dimethyl-γ-butyrolactone. In examples (1) Laevo α-hydroxy-##-dimethyl- γ-butyrolactone is mixed with freshly distilled #-alanine ethyl ester and the mixture heated to 700‹C. for 2¢ hours. The product is treated with barium hydroxide, and worked up to give dextro-pantothenic acid. (2) Dextro-α-hydroxy- ##-dimethyl-γ-butyrolactone is heated with. freshly distilled #-alanine ethyl ester to 70‹C. for 3 hours and worked up as in example (1) to give laevo-pantothenic acid. The Specification as open to inspection under Sect. 91 includes also the preparation of derivatives of pantothenic acid, particularly salts as set out in the following examples (1) (+) Pantothenic acid is neutralized in aqueous solution with calcium carbonate, filtered, evaporated, and recrystallized from methanol. (2) (+) Pantothenic acid is reacted with benzyl thiuronium chloride to give the benzyl thiuronium salt. (3) (-) Pantothenic acid is treated in the same manner as the (+) acid in example (1). (4) (-) Pantothenic acid is treated in the same manner as the (+) acid in example (2). This subject-matter does not appear in the Specification as accepted.
Patent GB-445638-A (GB)
Title: Improvements in the production of a mixture of coal-gas and water-gas
IPC: C10J3/00
Filed: 1935-02-21
Abstract: 445,638. Steaming coke ovens or retorts. WOODALL-DUCKHAM (1920), Ltd., and KENT, A. T., 136, Victoria Street, Westminster. Feb. 21, 1935, No. 5570. [Class 55 (i)] In the production of a mixture of coal gas and water gas in intermittent vertical chamber ovens, the operation of a group of ovens is arranged so that carbonization is in progressively advanced stages in successive or different ovens of the group, and the oven wherein carbonization is complete is steamed to water gas which is passed while hot through the upper parts of the remaining ovens to mix with the coal gas generated therein. The charge in an oven 1 is completely carbonized and that in an oven 2 is at an intermediate stage. The former is up-run with steam admitted at an inlet 9 and the water gas passed into the upper part of chamber 2 where it mingles with the coal gas generated therein, the mixed gases passing to the foul gas main 4. The hydrocarbons in the coal gas are fixed during their passage over the top of the chamber 2. Any number of ovens may be operated in a group, four being described in a modification. Chambers in which carbonization is partially complete may also be steamed. The ovens may be heated externally by producer gas from a separate producer.
Patent GB-549054-A (GB)
Title: Improved manufacture of catamenial tampons
IPC: A61F13/20
Filed: 1941-05-01
Abstract: 549,054. Catamenial, &c., tampons. JOHNSON & JOHNSON (GT. BRITAIN), Ltd. May 1, 1941. No. 5676. Convention date, July 24, 1940. [Class 81 (ii)] A catamenial tampon is made by inserting a web of porous material in a die so that it is folded into U-shape, then compressing it longitudinally to compact it tightly and then removing it from the die; the web may be provided with a withdrawal cord before insertion in the die. As shown in Fig. 1 the web 1 of fibrous material before insertion in the die is placed over a withdrawal cord 2 on a block 5, the cord passing from a supply 4, under a clamp 7, past a knife 9, around a suction tube 13 and back to a point adjacent the knife ; the length of cord thus looped is of a definite length and the part in the clamp 7 is cut by the knife 9, the free ends of the cord being then taken over the web and inserted in the suction tube so that when the web is removed from the block 5 the cord is secured thereto by a loose slip knot. The knot is then drawn tight and the web placed over a tubular die 21, Fig. 3, having a tapered mouth 25 and forced into the die by a plunger 31 which folds the web into U-shape; the web is finally compressed between upper and lower plungers 33, 41, Fig. 5, of the diameter of the die, the plunger 33 having a spring-controlled inner member 35 which enters the opening formed by the first plunger 31, controls the compression of the web, and ensures a permanent opening in the finished tampon.
Patent GB-1458310-A (GB)
Title: Indwelling vein catheter assemblies
IPC: A61M25/06
Filed: 1974-02-07
Abstract: 1458310 Catheters; cannulas BOEHRINGER INGELHEIM GmbH 7 Feb 1974 [7 Feb 1973] 05718/74 Heading A5R A flexible indwelling vein catheter 2, Figure 5, carried on a rigid inner needle 1 is mounted on a flexible plastics catheter holder 3 connected by a Luer-lock seal to a hard plastics needle holder 4 and releasable by rotation of the needle holder so that the needle may be withdrawn from the catheter, the catheter holder 3 carrying plastics vanes 8, Figure 1, comprising thinner flexible parts 12 and thicker gripping parts 13 disposed on either side of a vane 7 fixed to needle holder 4, the vanes 8 being movable between a closed position (shown as solid lines) where they are adjacent face to face and the angle α 2  between vanes 7, 8 and a plane ABCD passing through the needle axis and the point of the needle is between 30‹ and 60‹, and an open position (shown as broken lines) where the vanes 8 serve as a fixing aid. Infusion liquid may be introduced via an inlet 6 of needle holder 4 through tubing which is softer and more flexible than that of catheter 2 to allow for expansion or contraction. A slip-on outer protective cap 9 encloses the catheter.
Patent GB-374066-A (GB)
Title: Improvements in mechanism for operating elevator doors
IPC: B66B13/08
Filed: 1931-02-24
Abstract: 374,066. Operating lift-cages and doors. WAYGOOD-OTIS, Ltd., 54, Fetter Lane, London.-(Otis Elevator Co. ; 260, 11th Avenue, New York, U.S.A.) Feb. 24, 1931, No. 5772. [Class 78 (iii).] In actuating-mechanism for lift doors of the kind in which a motor-operated crank 24 carrying a rod 30 is connected to a dooractuating lever 28 through a constantly-acting friction device 32 which permits slippage should any obstruction to the opening and closing movements of the door 26 be encountered, the lever 28 carries projections 37, 38 which act on the insulating plungers of switches 39, 40 to cut out the motor automatically when the door reaches the fully open and the fully closed positions. The friction coupling 32 comprises plungers 34, Fig. 5, made of " bakelite " and pressed by springs 35 into engagement with the rod 30 which is preferably made of brass, lubrication being effected by an oil cup which delivers to a channel bored in the pin 36 to which the door-operating lever 28 is pivoted. The starting-up of the motor for opening the door 26 is preferably effected automatically by the movement of the lift 10 itself, the hoisting motor being cut out immediately the door begins to open by a switch 54, the contacts 56 of which are separated by an insulating plunger 58 operated by a lever 59 connected to the door lever 28. A manuallyoperated switch is provided for starting up the motor to effect closing movement of the door. The door-operating lever 28 carries a cable 72 attached to a cam 70 which actuates through an arm 66, a latch 62, 64 for the landing door 65 as described in Specification 374,073 ; the latch 62, 64 is formed as.a switch .which controls the operation of-the hoisting motor and prevents movement of the lift until both the car door 26 and the landing door 65 are closed.
Patent GB-357475-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K5/24
Filed: 1931-02-24
Abstract: 357,475. Vibration dampers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Morrill, W. J. ; 2317, South Wayne Avenue, Fort Wayne, Indiana, U.S.A.) Feb. 24,1931, No. 5801. Convention date, Feb. 24, 1930. [Class 108 (iii).] To minimize vibration of the stationary member in a machine having a pulsating torque, an annular weight is arranged in. side this member around the axis of rotation and is resiliently connected to the stationary member. The weight and springs may have a natural period of vibration corresponding in frequency with the vibration of the stationary member caused by the pulsating torque. In the form shown, the weight 17 is attached to the end bracket 12 of a singlephase electric motor by three radially-arranged flat springs 18 secured in radial slots 20, 19 in the weight and end-bracket respectively so that the springs are resilient to circumferential vibrations but rigidly resist movement of the weight in any other direction.
Patent GB-107995-A (GB)
Title: Improvements in or relating to Electric Heat Radiators.
Inventor: BERRY ARTHUR FRANCIS
IPC: H05B1/02
Filed: 1916-04-20
Abstract: 107,995. Berry, A. F. April 20, 1916. Electric radiators.-An effect of flame or combustion is obtained in an electric radiator by a frequent and automatic variation of the current passing through the heating elements. In the arrangement shown in Fig. 1, in which lamp radiators a. a<1> are employed, a bimetallic strip b is included in the circuit which becoming heated by the passage of the current, expands, and moves a lever e into contact with a stop h. The current is thus short-circuited through the metal strip c, stop h, and lever e. As the strip b cools and contracts, the contact between the stop h and lever c is again broken and the strip b thrown into the circuit. A set of resistances n with contact studs may be included in the device, an insulated portion k of the lever c passing over the studs and over a fixed conductor i connected to one of the leads to the radiator a<1>. When the lever e is in contact with the stop h so that the current through the radiator a is a maximum, all the resistances n are in the circuit of the radiator a<1>, the current through which is thus reduced. In the arrangement shown in Fig. 3, a switch 2 continuously rotated by a motor 3 inserts periodically portions of a resistance b in series with the radiator a. In another modification, a motoroperated switch connects up at frequent intervals the different heating elements of a radiator in series or various parallel groups, or the switch may short-circuit resistances placed in series between the heating-elements. In another arrangement, an expansible liquid is enclosed in a flexible chamber exposed to the heat of the radiator, the movement of the chamber walls being utilized to short-circuit a resistance in series with the radiator. In another arrangement, shown in Fig. 4, the pressure between a number of carbon blocks 4 through which the current flows is continuously varied by a motor-operated toggle mechanism 5. Specification 24170/14 is referred to.
Patent GB-1082011-A (GB)
Title: Improvements in or relating to arrangements for minimising electrical interference with signal carrying leads
Inventor: CLARKE CLIFFORD
IPC: H03H7/01
Filed: 1964-02-12
Abstract: 1,082,011. Preventing inductive disturbance. MARCONI CO. Ltd. Dec. 23, 1964 [Feb. 12, 1964], No. 5862/64. Heading H4R. An arrangement for minimizing common mode interference with the two leads of a circuit carrying a desired signal to be measured or otherwise utilized comprises four coils wound on a common magnetic core, two of the coils being inserted in series one in one and the other in the other of the two leads, the third being connected in series with a capacitor between one lead and a point of fixed potential and the fourth being similarly connected in series with a capacitor between the other lead and a point of fixed potential. As described, input terminals 1, 2 are connected to the signal source. Four substantially identical coils are twisted together and wound on a toroidal core 5 of magnetic tape. Two of the coils are connected together at one end to terminal 1. Of these two coils one is connected to earth at its other end through a capacitor 10 and the other is connected at the corresponding end to terminal 3 connected to an output lead. The other two coils are similarly connected together at one end to terminal 2. One of these two coils is connected to earth at its other end through a capacitor 11 and the other of these two coils is connected at the corresponding end to terminal 4 connected to an output lead. The coils connected to the capacitors 10, 11 present a high impedance to common mode interfering signals and the capacitors 10, 11 are sufficiently large for voltages substantially equal to the common mode interference to be set up across all four coils.
Patent GB-1494775-A (GB)
Title: Rotary regenerative heat-exchanger
IPC: F28D19/04
Filed: 1975-02-12
Abstract: 1494775 Thermal regenerators PHILIPS GLOEILAMPENFABRIEKEN NV 12 Feb 1975 [15 Feb 1974] 5938/75 Heading F4K In a rotary-matrix type thermal regenerator wherein the respective heat exchanging fluids are gases (e.g. combustion gases and high pressure air) at differing and varying pressures which flow in opposite directions axially through the matrix rotor 2, 3 whereby a resultant force varying in magnitude with the plant load is exerted in one axial direction on the matrix rotor, a device is provided controlled by the pressure of one or other of the gases and is arranged to exert on the rotor an axial force proportional to said pressure and acting in a direction which substantially counteracts the resultant axial force exerted on the rotor by the gases. Hence, the seals 10, 11 are relieved of any substantial axial loading exerted by the gas pressure differential and only light springs 12 need be utilized.  In the form shown the axial force acting on the rotor due to the gas pressure differential is from left to right owing to the greater area of rotor contacted by the hot gas entering at 8. Within the regenerator housing 1 the space 13 around the rotor and outside the seals 10, 11 is pressurized by the high pressure air entering at 6. Said space 13 is connected via a duct 19 to a chamber 18 one wall of which comprises a diaphragm 17. A ball or roller 21 at the end of a pin 20 is urged by the diaphragm into contact with the rotor shell 2 thus providing the counteracting axial force varying in intensity with the plant load as reflected by variations in the flow of high pressure air to the duct 6.
Patent GB-1499562-A (GB)
Title: Optical record reader
IPC: G11B7/1365
Filed: 1975-02-12
Abstract: 1499562 Optical playback of records PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 12 Feb 1975 [15 Feb 1974] 5953/75 Heading G5R [Also in Division G2] Apparatus for playback of an optically readable record 1 comprises an optical radiation source 2 giving a linearly polarized substantially monochromatic read beam 20 focussed by an objective 5 on to record 1, and a detector 6 to convert the beam 21 reflected and modulated by record 1 into a playback electrical signal, the modulated beam 21 being separated from the unmodulated beam 20 by means of a polarization-sensitive beam splitter 10 and a #/4 plate 7, plate 7 being disposed in a holder 9 in such a way that the normal to the entrance and exit faces 17, 18 of plate 7 makes an angle α of smaller than about 25 degrees with beams 20, 21, said normal being parallel to the optic axis 8 of plate 7 so that the operation of the plate 7 is independent of its rotational position in its own plane within the holder 9. The source 2 may be a laser giving a beam 20 polarized in the plane of the drawing, the double traverse of plate 7 giving a 90 degree rotation of the plane of polarization so allowing separation of beam 21 from beam 20 by splitter 10 which comprises a non-astigmatic assembly of three prisms 11, 12, 13 having optic axis 14, 15, 16 respectively, axis 14 being perpendicular to axes 15, 16. Plate 7 may be a 1À39 mm thick quartz plate located so that angle α is about 10 degrees. The record 1 may be a disc or a tape.
Patent GB-853510-A (GB)
Title: Jig for assembling packages of bricks and similar building units
IPC: B65B27/12
Filed: 1955-12-12
Abstract: 853,510. Stacking and bundling bricks. FRYER, K. G. H., EDEN, J. F., MATTHEWS, W. R., and WILLMOTT, W. Dec. 12, 1956 [Dec. 12, 1955], No. 5994/59. Divided out of 853,508. Class 94(1). A jig for assembling the package described in Specification 853,508 consists of a tubular frame comprising a base 21, side 22 and rear wall 23, the base and side being formed with guide channels 25 and 26 for the passage of the steel or other band which encircles the completed package. The jig is tiltable about the junction of the base and side to an inclined position, e.g. 45 degrees to the horizontal, in which it is supported by a handle 24. The bricks are then stacked in the jig, the band is passed around the stack and secured at its ends, and the jig is then restored to the horizontal position to facilitate the removal of the package.
Patent GB-445832-A (GB)
Title: Improvements in or relating to conveyor mechanism
IPC: B65G17/16
Filed: 1934-10-05
Abstract: 445,832. Endless - chain elevators. HALL, W. A., Kelowna, Durham Road, Gateshead, Co. Durham. Oct. 5, 1934, No. 6049/36. Divided out of 445,769. Drawings to Specification. [Class 78 (i)] The subject-matter is the same as that described in Specification 445,769, but the invention claimed relates to the construction of the stationary gridlike platforms from which the articles are removed by the elevatorchain.
Patent GB-124904-A (GB)
Title: Improvements in Clinometers.
Inventor: MCGOWING JAMES ROBERT
IPC: G01C9/16
Filed: 1918-04-09
Abstract: 124,904. McGowing, J. R. April 9, 1918. Clinometers for use on aeroplanes &c. comprise two weighted wheels a, m at right-angles to each other. The spur pinion b, mounted in the casing, gears with the wheel a and, through the damping-gearing c - - f, operates the spindle g<1>, to which is secured the pointer g. A second pointer p is secured to the wheel m, which also operates the chain of damping-gearing q - - u, mounted in the casing. A disk k is secured to the spindle g<1> and has painted on it a red signal which shows through an aperture in the dial when the aeroplane &c. becomes inverted.
Patent GB-457246-A (GB)
Title: Improvements in or relating to shaft couplings
IPC: F16D3/68
Filed: 1936-02-28
Abstract: 457,246. Shaft couplings. SIMMS MOTOR UNITS, Ltd., and BRYAN, W., Percy Buildings, Gressa Street, Rathbone Place, Oxford Street, London. Feb. 28, 1936, No. 6072. [Class 80 (ii)] The intermediate resilient element for a shaft coupling of the type in which two discs with different numbers of teeth are fixed on adjacent ends of two shafts and engage with corresponding teeth on the opposite faces of an intermediate resilient element, is composed of a series of hard oil-resisting rubber layers disposed in the direction of the axis of the element. Such an element is formed by winding a strip of rubber mix round a mandrel to a required diameter, roughly forming by pressure the teeth on the opposite faces and then finally shaping the element in a vulcanizing mould.
Patent GB-957232-A (GB)
Title: Improvements in or relating to pipe couplings
Inventor: SAUNDERS ALEXANDER ALBERT
IPC: F16L47/20
Filed: 1962-02-16
Abstract: 957,232. Pipe joints. A.P.V. CO. Ltd. Jan. 25, 1963 [Feb. 16, 1962], No. 6150/62. Heading F2G. A pipe coupling device comprises a steel annulus 3 whose internal diameter is such as to pass over the end of a pipe section 1<SP>1</SP> and one or more transversely split steel rings 2<SP>1</SP> locatable between the pipe and the annulus 3 and receivable in a groove therein and having one or more edge or edges of sawtooth section each having an inclined surface 6 and a surface 7 normal to the axis of the ring, at least one inclined surface facing the direction of insertion of the pipe end into the coupling. There may be one ring with more than one protruding edge, as shown, or more than one ring each having one protruding edge, arranged and disposed in a variety of ways, as described in the Specification. When joining two pipes, a similar device is fitted on the end of the other pipe section and the two annuli are held together by a common union nut.
Patent GB-1423818-A (GB)
Title: Temporary windscreens
IPC: B60J1/02
Filed: 1972-02-10
Abstract: 1423818 Vehicle windscreens D H LEESMITH and A T SHERSTON 16 Jan 1973 [20 Jan 1972 10 Feb 1972 22 Sept 1972] 2762/72 6166/72 and 44058/72 Heading B7J [Also in Division E1] Adhesive fixing means (e.g. strips 3) or suckers arranged along the edges of the central portion 7 of a flexible plastics temporary windscreen terminate short of the two end portions 8 which are for engagement in the vehicle's doorways. A row of eyelets 4 are for securing to the windscreen wiper's drive shafts. In use, either the lower edge of the windscreen is slit to engage over the drive shafts and it is tied thereto using tapes threaded through rings of a larger diameter than that of the eyelets 4, or the eyelets 4 may be engaged over the drive shafts. The eyelets 4 may be welded to two separate plastics patches, for securement to the windscreen.
Patent GB-286234-A (GB)
Title: Improvements in regenerative coke-ovens
IPC: C10B21/10
Filed: 1928-02-28
Abstract: 286,234. Naamlooze Vennootschap Silica en Ovenbouw Mij, (Assignees of Otto & Co., Ges., Dr. C.). Feb. 28, 1927, [Convention date]. Addition to 240,167. Drawings to Specification. Coke ovens.-In the coke oven described in the parent Specification, rich gas is supplied to the heating-flues through an horizontal distributing-conduit beneath the oven sole, or through a pair of such conduits, which are so controlled that they are simultaneously in or out of communication with the rich gas main.