baber/WOPTO huggingface dataset:
Patent GB-477561-A (GB)
Title: Improvements in television, and the like
IPC: H01J31/26
Filed: 1936-07-20
Abstract: 477,561. Television transmission. MICHAELIS, E. July 20, 1936, No. 20015. Convention date, July 20, 1935. [Classes 39 (i) and 40 (iii)] The object E is imaged on a photo-electric cell cathode B so that the brightest parts of the object produce saturation emission of electrons, and the cathode B is scanned by a beam of light from J which is intense enough to produce saturation emission in the absence of other illumination. If the object is not bright enough to produce saturation emission, the cathode is uniformly illuminated from another source, while if the object is too bright, a filter is interposed to reduce the intensity of the image. The steady current through K in the absence of a scanning beam is proportional to the intensity of the object; on scanning, this current is increased by the difference between the saturation emission of a scanned point and its emission before scanning, and this variation is used as the picture signal. The variations in the steady current due to variations in the contents of the object are eliminated by circuits similar to automatic fading arrangements, e.g. a condenser may be charged by the steady voltage at the end of each complete scanning and the condenser potential then used to bias the succeeding amplifier or a grid within the photo-electric cell. The object may radiate infra-red rays, so that the receiver and transmitter may be utilized for observing invisible objects. The scanning beam may be derived from a cathode ray traversing a fluorescent screen. Specification 426,505, is referred to.
Patent GB-405981-A (GB)
Title: Improvements in pressure liquid actuated regulators
IPC: G05D13/00
Filed: 1932-07-15
Abstract: 405,981. Hydraulic regulating-apparatus. WETTSTEIN, F., Brevik, Lidingo, Sweden. July 15, 1932, No. 20075. Convention date, July 17, 1931. [Classes 69 (ii) and 135.] Hydraulic regulators responsive to impulses indicating any physical &c. condition, such as speed, pressure, temperature, voltage, &c., have means for returning the servomotor control valve to its neutral position, said means comprising a piston controlled by an auxiliary valve for producing variations in the pressure acting on the piston, a restriction being provided for allowing subsequent return of the pressure to normal. In the form shown in Fig. 1, governor elements 5 actuate a spindle 6 connected through a spring 20 with a piston 19, and formed with valves 8, 9 controlling the main servomotor piston 17 and piston 19 respectively. A conduit 18 connects the chamber 23 and valve 9 with a chamber 33 through a restriction 34, and the chamber 33 leads to the atmosphere past a valve 25, the loading of which is variable through screw or other means for determining the normal speed. A pressure supply conduit 32 communicates with the chamber 33 through a restriction 35, and with a port 12, and exhaust ports 13, 14 are provided. In a state of equilibrium the pressures in the chamber 23 and cylinder 16 are half the supply pressure. Increase in the speed of the shaft 1 causes the spindle 6 to rise, thus allowing liquid to escape from the servomotor cylinder 16 to allow closing movement of the valve 41, and allowing passage of pressure liquid to the chamber 23 to return the spindle 6, the pressure in the chamber 23 subsequently returning to normal by passage of liquid through the restriction 34. Similar operation takes place when the speed of the shaft 1 falls. The action is controlled by an adjustable throttle 22, and by automatic control of the valve 25. One or both of the valves 8, 9 may have lap provided with slots 44, Fig. 2. In the pressure regulator shown in Fig. 3, pressure acts through a diaphragm 52 to vary the position of a double balanced valve 60, 61 in an adjustable sleeve 59, so as to vary the pressure in a chamber 66 to cause a piston 73 to move the valves 71, 72. A spring 74 is interposed between the pistons 73, 75, an adjustable throttle 78 is provided, and the chamber 77 communicates with the supply conduit 62 and with the atmosphere through restrictions 80, 81 respectively. The restrictions 34, 80, 81, may each be constituted by a spiral capillary channel 93, Fig. 4, on a removable pin 94, and the throttling members 22, 78 by a similar channel 98, Fig. 5, of increasing size on an adjustable pin.
Patent GB-239838-A (GB)
Title: Improvements in feed water heaters
IPC: F22D1/42
Filed: 1925-08-12
Abstract: 239,838. Worthington Pump & Machinery Corporation, (Assignees of Le Cain, J. A.). Sept. 12, 1924, [Convention date]. Multiple-delivery piston pumps.- In a feedwater heater for locomotive use, cold water supply and hot water feed pumps E, F, are operated by a single direct acting steam engine G. The chambers A - - D, and pump E are preferably formed of a single casting to which the pump F is secured, the whole being supported by a bracket 31 from the boiler H. Cold water is supplied to the suction chamber 33 of the pump E and is drawn by the plunger e through valves 35, 36 separated by a partition 37 providing two pulsation passages 38, 39 connecting with opposite ends of the pump. The suction chamber 43 of the hot water feed pump F is extended to connect with the storage tank C. A passage m a removable cover plate secured to the side of the cold water pump communicates through one or more check valves with its pulsation passage 38.
Patent GB-1035989-A (GB)
Title: Method of and means for forming the bead portions of pneumatic tires
IPC: B29D30/24
Filed: 1963-05-22
Abstract: 1,035,989. Building pneumatic tyres. GENERAL TIRE & RUBBER CO. May 22, 1963 [June 27, 1962], No. 20433/63. Heading B7C. A method of forming a bead portion of a pneumatic tyre by mounting a band of parallel cord fabric plies on a tyre building drum 6 with an end portion projecting past one end of the drum and overlying an inflatable, radially expansible, elastic air bag 7 positioned at the said drum end, placing a bead ring against the portion of the ply band overlying the drum shoulder and folding the end of the ply band around the bead ring and against the ply band on the end portion of the drum by inflating the bag 7 to extend it radially and by forcing the radially extended portion of the bag axially over the end of the drum, is characterized in that the portion of the expanded bag 7 surrounding the drum is collapsed into gripping engagement with the ply band on the drum by holding that portion of the bag 7 against axially outward movement while deflating the bag. The bead ring is applied to the ply band by means of an annular support member 22 which is slidably attached, by circumferentially spaced, axially extending rods 25, to a backing plate 21 of a bag-engaging sleeve 20, the member 22 being biased towards the backing plate 21 by springs 27. When the sleeve 20 is retracted from the drum 6 the axially outer ends of the rods 25 engage the wall of the housing which supports the drum shaft so that the support 22 is held stationary and aligned with the axially inner end of the sleeve to facilitate the insertion of the bead ring. The sleeve 20 is then moved axially over the uninflated bag 7 towards the drum until the bead ring is pressed against the ply band. The sleeve is retracted and the bag 7 inflated. The annular bag 7, when uninflated, has a cylindrical radially outer wall, while its radially inner wall is radially inwardly contracted at its axially inner and outer ends to form enlargements 93, 94 such that, as the bag is inflated, a strong axially outward pull on the bag causes the ply band to be pulled axially outwards. When fully inflated the bag 7 presses the ply band against the axially outer face of the bead ring, and the sleeve 20 is advanced to force the radially extended portion of the bag together with the ply band around the bead ring and over the drum end. Slippage between the bag wall and the ply band or the interior of the sleeve 20 is prevented by means of circumferential ribs 101 formed on the exterior of the bag wall. Thus the portion of the bag wall which is collapsed over the drum is held against axially outward movement. The bag is released from gripping engagement with the drum by partially inflating the bag. The second bead portion of the tyre is formed simultaneously by an inflatable bag 8 and a second sleeve 20 which is cam-operated into a horizontal position below the drum to permit removal of the tyre. The bead ring support member 22 is fixed to the backing plate since the bead ring can be easily inserted when the sleeve 20 is swung down into its horizontal position.
Patent GB-377811-A (GB)
Title: Improved construction of coupling for connecting tubes together
IPC: E04G7/20
Filed: 1931-07-17
Abstract: 377,811. Rod joints ; scaffolding. HINGLEY, T. P., Apex Works, Uxbridge Road, Southall, Middlesex and CROUCH, G. H., 24, Pembridge Crescent, Notting Hill Gate, London. July 17, 1931, No. 20514. [Class 99 (i).] A coupling for tubular scaffolding comprises a rod A extending into each tube G, a collar B carried by or integral with the rod, a pin C carrying a yoke D having curved surfaces F which engage the tubes, and a nut H or other means engaging the pin to force the yoke against the tubes.
Patent GB-760369-A (GB)
Title: An improved hand truck for milk bottle crates or the like
IPC: B62B1/10
Filed: 1954-07-14
Abstract: 760,369. Hand trucks. TOLLEY, B. G. Aug. 11, 1955 [July 14, 1954], No. 20519/54. Class 108(1). A hand truck is provided with a handle frame comprising tubular members 15 supported on wheels 22 and interconnected at their lower ends by a transverse member 18 on which is rotatably mounted a tube 19 forming part of a crate engaging frame 1 provided with reversible members 6 carrying gripper members 9, 10 spaced to engage different sized crate stacks. Toggle members 24, 26 when pushed downwardly cause the handle frame 2 to be deflected to the dotted line position thus causing the gripper members to rise and engage the various crates in the stack. A rod 11 passed through aligned holes in the two members 6 prevent them from rotating on their pivotal mountings 8 in the transverse members 3 and 4 of the crate engaging frame.
Patent GB-422795-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02K19/06
Filed: 1933-07-20
Abstract: 422,795. Alternating-current motors. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin) July 20, 1933, No. 20535. Convention date, July 21, 1932. [Class 35] Motors with unwound iron armatures.- A synchronous motor is fed through a half wave rectifier and has only half as many teeth as would be necessary to obtain the same speed without the said rectifier. In the form shown, a metal oxide rectifier d is connected in series with the coils on the polepieces b, c, on the stator a which is surrounded by the toothed rotor e which may drive a gramophone.
Patent GB-954642-A (GB)
Title: Improvements relating to gas generators
Inventor: ROBERTSON DANIEL STEWART
IPC: A62C13/00
Filed: 1960-06-10
Abstract: In a gas generator in which gas evolving reactants 16, 17 are separately stored in connecting vessels 5, 6 and are brought into reacting contact by a change in the relative position of the vessels, the vessels are connected by a narrow passage 2 through which extends a tube 7 for the conveyance of gas from vessel 6. The tube 7 has extending thereinto <PICT:0954642/C1/1> a second tube 9 which constitutes an outlet passage for the gas. When the generator is inverted from the position shown the liquid reactant 16 flows through the neck to react with the solid reactant 17 in the vessel 6, the gas produced passing by way of orifices 8, 13, 14 to the nozzle 11.  On re-inversion of the generator the production of gas ceases. The tube 9 may be sealed through the wall of tube 7 and vessel 5, and the tube 7 may be sealed to tube 9 below orifice 14. When the gas to be generated is hydrogen the solid reactant may consist of zinc turnings and the liquid reactant of hydrochloric acid.
Patent GB-766796-A (GB)
Title: Improvements in and relating to cleaning devices for kitchen utensils and for other purposes
IPC: A47L13/022
Filed: 1953-07-24
Abstract: 766,796. Cleaning pads. TSIPIS, J. S. July 23, 1954 [July 24, 1953], No. 20610/53. Class 19 [Also in Group VI] A cleaning device comprises a rod-like handle formed at one end with a longitudinal slot, and cleaning material of loofah, cellular nylon, stockinet or other open material positioned between and folded over the end parts of the handle on each side of the slot and secured to the handle by staples.
Patent GB-1047828-A (GB)
Title: Asphalt composition containing atactic polypropylene
Inventor: BELAK STEVEN GEORGE
IPC: C08L95/00
Filed: 1964-05-19
Abstract: A composition consists essentially of 1-20 weight per cent atactic polypropylene and 80-99 weight per cent asphalt.  The standard needle penetration of the composition is preferably 70-120 at 77 DEG  F. The penetration ratio is preferably at least 30.  The polypropylene has M.W. 10,000-40,000.  The composition may be blended with mineral aggregates, cement, sand, asbestos, vermiculite or glass fibres.  The composition may be used for paving, soil stabilization, linings, coatings and for making moulded articles.
Patent GB-516884-A (GB)
Title: Improvements in and relating to axleboxes for railway vehicles
IPC: B61F15/06
Filed: 1938-07-12
Abstract: 516,884. Railway-vehicle axle-boxes. LONDON & NORTH EASTERN RAILWAY CO., and CRUDDAS T. H.W. July 12, 1938, No. 20614. [Class 12 (i)] [Also in Group XXII] An axle-box made of metal parts welded together includes a single-plate cut and pressed to shape to form the bottom 1 and side walls 2 of the box which is closed at its upper end by a cast or drop stamped cap 20, channel members 27, 28, for the horns of the axle-box guides being attached to the 'sides 2. The bottom has an upturned lip 4 to which an oil well plate 5 is welded. Plates 6, 8, wider than the box for accommodating a dust shield are welded to the inner end of the box. At the outer end of the box a cover 35 is pivoted to a lug 36, welded to the box, the cover engaging in a recess 38 in the cap 20 and a strip 39 welded to the plate 5. On the interior of each side wall 2 is welded bearing support 18 of flanged channel section. 'The cap 20 may have recesses 22 to locate the spring leaves. The side walls and bottom of the box may be corrugated.
Patent GB-1435191-A (GB)
Title: Pressure regulator valve
IPC: F16K17/10
Filed: 1973-05-01
Abstract: 1435191 Fluid-pressure servomotor systems REFRIGERATING SPECIALTIES CO 1 May 1973 [1 May 1972] 20633/73 Heading G3P A pressure regulator for the outlet of a refrigerator evaporator and which can be adapted for different functions comprises an adaptor member 15 sandwiched between a bonnet 12 and a body member 14. The bonnet carries an adjustable spring 80 acting on a diaphragm 28 clamped between the bonnet and the adaptor member to force the diaphragm against a valve seat 34 which inter-connects the recesses 20, 40 of the adaptor member. The body member 14 has piston valve means formed by an actuating piston 42 and a closure member having V-slots 114 and a conical sealing surface 111 which closure member cooperates with a seat 106 to control flow between an inlet 100 and an outlet 102. The inlet is connected by passages 126, 58 to a manifold space 48 in the adaptor member which space is connected to a screwed port 46 and two passages 60, 62 which open externally at surface pads 50, 52. A further pair of passages 64, 66, which communicate respectively with the recesses 40, 20, open externally at the pads 50, 52. A block (68) Figs. 6 and 7 (not shown) can be bolted to each pad to interconnect the respective passages 62, 66 and 60, 64 or to seal them from each other. If passages 62, 66 are inter-connected by a block (68) the diaphragm 28 will respond to excess pressure in inlet 100 to  move away from the valve seat 34 to allow inlet pressure to act on the piston 42 to open the closure member against the spring-loading 120. An adjustable plunger can be arranged to prevent full closure of the closure member. A block (68) may be replaced by a pressure-responsive diaphragm pilot valve in parallel with or a solenoid-operated pilot valve in series with the diaphragm valve. Alternatively the bias spring 80 may be supplemented by a fluid-pressure admitted to the bonnet and responsive to a thermostat or a humidstat. The bias spring 80 may also be adjusted by a solenoid (142), or a motor driven cam (160) responsive to temperature. The connection between passages 126, 58 can be closed by relative rotation of the body and adaptor members or by rotation of the gasket 59 therebetween.
Patent GB-919970-A (GB)
Title: Improvements in and relating to pneumatic tyres
IPC: B60C15/00
Filed: 1959-06-16
Abstract: 919,970. Wheel tyres. COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN-RAISON SOC. R. PUISEAX & CIE. June 16, 1959 [June 18, 1958; March 31, 1959], No. 20647/59. Class 144 (2). A pneumatic tyre carcase is reinforced in its " upper " sidewalls, i.e. from the points P of maximum width to at least the edges of the tread 5, solely by radially disposed cords 7, i.e. cords extending at 90 degrees to the circumferential direction, and is reinforced in the " lower " sidewalk by cords extending from points P towards the beads 2, some of which, such as 7, are radially disposed, and others of which, such as 6a, 6b, extend obliquely at equal and opposite angles of from 10 to 40 degrees to the circumferential direction. The cords 7, 6a and 6b may be of textile or metal and, as shown, the radial cords in the lower sidewall may comprise extensions of those 7 in the upper sidewall. The cords 7 may extend from each upper sidewall to spaced points M below the crossed-cord tread reinforcement 8, 9 or may be united in a single ply extending wholly across the tread. The radial cords in the lower sidewall may extend to points Q short of the beads, with the cords 6a, 6b in a single ply or two separate plies, anchored to the bead cores 3. Alternatively the radial cords may be anchored to the bead cores 3 with two separate plies of cords 6a, 6b disposed on opposite sides thereof, respectively, and terminating short of the beads. The cords 6a, 6b may be coated with rubber of high modulus of elasticity. Specifications 628,060, 677,166 and 698,915 are referred to.
Patent GB-422928-A (GB)
Title: Improvements in or relating to paper slitting machines and the like
IPC: B26D3/02
Filed: 1933-07-22
Abstract: 422,928. Delivery apparatus. NATIONAL CASH REGISTER CO., Dayton, Ohio, U.S.A.-(Assignees of Anthony, J. F. ; 1452, Marlvoro Avenue, Wilkinsburg, Pennsylvania, U.S.A.) July 22, 1933, No. 20721. Convention date, July 22, 1932. Addition to 377,964. [Class 100 (i)] The machine described in the parent Specification for feeding, slitting and stacking multiple printed cheques, papers &c., is modified by the provision of automatic driving means for operating the mechanism for stacking the slit papers in sequential order. The driving means preferably comprises a one revolution clutch put into operation by the action of the device which feeds the cheques to the slitting - mechanism. The stacking mechanism, which moves on rods 120, 121, Fig. 4, and is constructed as in the parent Specification with a slide 119 carrying pushers 122, 123, and a retaining bail 133, is driven from an electric motor 33, Fig. 6, which also drives the slitting-mechanism. The slide 119 is operated by an oscillating lever 116 pivoted at 117 and fitted with a gear sector engaging a rack 115 on a spring-controlled slide 113, which is moved in one direction by a pin 110 fitted with a roller 111, which engages a cam projection on the slide. The slide 119 returns under the action of a spring 138 acting on an arm 140 carried by the lever 116. The pin 110 is driven by a one-revolution clutch of known kind which is thrown in by the action of a pivoted cam surface attached to a bar 73 which is fixed to the pushers which advance the cheques to the slitting-mechanism. This cam surface releases a lever 85 which normally holds a band clutch in inoperative position. In a modification, Fig. 9, the one-revolution clutch operates a closed cam 141 which reciprocates a pitman 145 attached to a rack 155 which oscillates the lever 116 positively in each direction of its motion.
Patent GB-1204620-A (GB)
Title: Improvements relating to oil-filled circuit breakers
Inventor: GHEORGHIU NICOLAIE
IPC: H01H33/06
Filed: 1968-05-01
Abstract: 1,204,620. Arc extinguishing in switches. INTREPRINDEREA PENTRU RATIONALIZAREA SI MODERNIZAREA INSTALATIILOR ENERGETICE BUCURESTI. 1 May, 1968 [14 July, 1967; 20 Dec., 1967], No. 20730/68. Heading H1N. In order to assist in extinguishing the arc in an oil-break switch a plurality of blades 8 are arranged to sweep through the arc path between each pair of contacts 2, 6. A three-armed rotor is trapped between fixed plates 12, 13 and is arranged to be turned by screws b attached to the movable contact member 5. The rotor and its associated parts are insulating though if the other insulation is adequate the rotor may be conducting. The rotor is grooved, a, so as to assist it to sweep fresh oil into the arc path. In an alternative form (Fig. 5, not shown) an assembly of parallel plates moves rectilinearly across the arc path.
Patent GB-605444-A (GB)
Title: Improvements in or relating to the resolution of racemic ª‡-hydroxy-ª‰-ª‰-dimethyl-ª†-butyrolactone
Filed: 1944-10-25
Abstract: Racemic a -hydroxy-b  : b -dimethyl-g -butyrolactone is resolved by reacting the racemic lactone with brucine alkaloid in a neutral aqueous or inert organic solvent in which the brucine-laevolactone complex thus formed is insoluble, or alternatively, in an inert organic solvent in which said complex is soluble and in this case precipitating the complex by the addition of a miscible liquid which is a non-solvent for the complex, separating said complex and recovering the laevo-rotatory lactone therefrom; the lactone may be recovered by treating the complex with an aqueous solution of a base, extracting the liberated brucine with chloroform or ethylene dichloride and isolating the #i-lactone from the residual aqueous solution or by treating the complex with an acid and extracting the #i-lactone with ether or benzene.  In examples: (1) an ethanol solution of brucine base and an acetone solution of racemic lactone are mixed and cooled and the resulting crystalline brucine-#i-lactone complex removed; (2) an aqueous solution of brucine sulphate is neutralized with sodium hydroxide and the racemic lactone added with stirring and the resulting precipitated #i-lactone complex removed; (3) brucine base is dissolved in hot ethyl acetate or dioxane, the racemic lactone added and after cooling, the precipitated #i-lactone brucine complex is filtered off; chloroform may be used in place of ethyl acetate, the required #i-lactone complex being precipitated by adding ether.  In each case, the #i-lactone is recovered from the complex by one of the methods described above.  The properties of the complex are compared with those of a true brucine salt of the corresponding butyric acid prepared, for example, by reacting an aqueous solution of the barium salt derived from the #i-lactone, with brucine sulphate.