baber/WOPTO huggingface dataset:
Patent GB-638681-A (GB)
Title: Improvements in or relating to endless belt conveyors
Inventor: ORWIN OLAF JOHN BARCLAY
IPC: B65G21/02
Filed: 1947-10-03
Abstract: 638,681. Conveyers. FISHER & LUDLOW, Ltd. Oct. 3, 1947, No. 267.02. [Class 78 (i)] An endless-belt conveyer, of the kind in which the upper run of the belt is shaped to trough form in cross section has a sheet metal support for the upper run which support is continuous in a direction longitudinally of the conveyer and continuous or substantially continuous transversely, the support being of trough shape in cross section and being adapted to maintain the trough shape of the cross-section of the upper run of the belt the extent of the troughing being such that the material tends to fall from the edges of the belt under gravity the support being provided with means extended continuously along the length of the belt which overlaps each of the longitudinal edge portions of the upper run of the belt so as to prevent the material carried by the upper run of the belt from being forced around the longitudinal edges thereof under the laterally directed pressure exerted by the conveyed material. The support comprises units 10, 11, formed of sheet metal which is bent as shown in Figs. 7 and 8 to form sections 16 which are supported on side members 24. Each unit has end flanges 13 and 25 secured together by bolts. The plates have integral side flanges 20, Fig. 6, and have a guard flange 21, 22 secured thereto providing a gap 23 for free movement of the edge of the belt to prevent spilling. The supports flatten out at the ends 17 of the belt. Brackets 26 are attached to the side members to secure idler rollers 27 for the return run 28 of the belt which also passes over a belt tensioning roller. The support may be made of separate units 16 connected together. Specification 638,680 is referred to.
Patent GB-1180361-A (GB)
Title: Windscreen Wipers Eliminating Blindspots and Providing Improved Wiping of the Screen
Inventor: BAXTER ERIC FREDERICK
IPC: B60S1/28
Filed: 1968-06-05
Abstract: 1,180,361. Windscreen wipers. E F. BAXTER. 5 June, 1968, No. 26709/68. Heading A4F. A windscreen wiper assembly comprises two wiper blades each in a holder and/or provided with a backing strip, and attached to a yoke or yoke assembly, wherein the two wiper blade assemblies are parallel and longitudinally displaced and interconnected by a bridging member integral with or attached to a wiper arm movable either arcuately or linearly over the windscreen.
Patent GB-954668-A (GB)
Title: Sewing machine attachments
IPC: D05B35/02
Filed: 1960-08-03
Abstract: 954,668. Sewing machines. S. N. MOORE, H. ABELOW, and A. J. MOORE. Aug. 3, 1960 [Aug. 11, 1959], No. 26975/60. Heading D1G. Means for attachment to the bed plate of a sewing machine comprise a throat plate having a needle hole, aperture means formed in the throat plate at a predetermined distance from the needle hole, and a rigid attachment member having integral engaging means extending downwardly for non-turning, releasable locking accommodation within said aperture means. A throat plate 14 having a needle hole 18 is formed with three pairs of apertures 22 A and B, 23A and B, and 24A and B. A rigid work guide in the form of a bar 12 has depending from its lower surface resilient studs 32 and 34 adapted to engage releasably in any of the respective pairs of apertures. The studs are positioned nearer side 26 of the bar than the opposite side 28. The arrangement is such that when side 26 is nearest the needle hole 18, indicated by the serrated part 42 of the bar being positioned rearwardly, the distance from hole 18 to side 26 is “ inch, ¢ inch and 3/4 inch when the apertures 22, 23 and 24 are respectively engaged. When side 28 is nearest hole 18, the corresponding distances are # inch, # inch and 5/8 inch. A magnet 44 is incorporated in bar 12. In Fig. 6 a bar 52 is provided with four studs adapted to engage the apertures 23 and 24, and has a dovetail engagement with a handle 54 carrying a folding scroll 56. A screw 63 carried by bar 52 passes through a slot 66 in handle 54, and the latter is held in adjusted position by a nut 74.
Patent GB-899575-A (GB)
Title: Improvements in curtain suspension devices
Inventor: SAYER ARTHUR LEON
IPC: A47H13/01
Filed: 1958-08-22
Abstract: 899,575. Suspending curtains. HARRISON (BIRMINGHAM) Ltd. July 27, 1959 [Aug. 22, 1958], No. 26989/58. Class 52(5) In a device for suspending curtains the curtain is gripped between an inner member 11 and an outer sleeve 12 wedging over the member 11 and having a slot 13 through which the curtain passes. The member 11 has a hook 10 for engaging a rod or rail 15 with or without a curtain ring 14. The device is preferably moulded in plastic, e.g. clear polystyrene. In modifications the hook is replaced by a ring or inwardly directed bearer parts for engagement with a flanged rail.
Patent GB-1029865-A (GB)
Title: Remote control system for antenna rotators
IPC: G05D3/16
Filed: 1964-06-30
Abstract: 1,029,865. Change-speed gear. CROWN CONTROLS CORPORATION. June 30, 1964 [Sept. 3, 1963], No. 27064/64. Heading F2D. [Also in Divisions G1 and H2] A rotatable antenna mast 150 for television is driven by electric motor 24. So long as shaft 160 is biased upwardly for engaging clutch-plates 174, 176, there is a direct reduction drive between pinion 90 and output gear 154, since gears 88, 166, 168, and 154 rotate as a unit. Energization of solenoid coil 140a draws brake-disc 140c into engagement with stationary member 140b whereby shaft 160 and sun gear 168 are restrained from rotation. At the same time clutch-plates 174, 176 are disengaged, gear 88 rotating relative to gear 170. Planet gear 166 revolves about sun gear 168 providing a faster drive for ring gear 170 and output gear 154. A two-speed gear such as that shown is used in the motor drive to the television mast, and also in a follow-up motor drive of a cam disc 20, Fig. 3 (not shown), associated with a control dial 106 which selects orientation of the mast. The cam disc controls a contact-bar 52 which controls energization of the solenoids 140a of both gears, and forward or reverse switches for the motors, such that the mast is started and stopped in low-ratio drive, but moves intermediately in high.
Patent GB-426347-A (GB)
Title: Improvements in or relating to radio and like receivers
IPC: H03G3/22
Filed: 1933-10-02
Abstract: 426,347. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, and LINSELL, A. A., 43, West Hill, Sydenham, both in London. Oct. 2, 1933, No. 27079. [Class 40 (v)] Automatic volume control is effected, in an amplitude-modulated carrier wave receiver, by utilizing a controlled direct current to vary the saturation of the ferro-magnetic core of an inductance. In one embodiment, Fig. 1, the intermediate frequency transformer of a superheterodyne receiver has a ring-shaped core 5 having a tertiary winding 7 carrying a direct current derived, by rectification in a metal or other rectifier 9, from a winding 8 coupled to the output circuit of the high frequency amplifier 1 and smoothed by the filter 10, 11. In a second embodiment, Fig. 2, the oscillator valve 12 of a superheterodyne receiver has its grid and anode coils 14, 13 respectively coupled through a ring-shaped core 15 which also bears a coil 17 included in the grid circuit of the first detector 2, and a coil 16 through which the control current is passed. In other embodiments a controlled choke is connected in the screen grid circuit of a high frequency amplifier or in its input circuit. The core is preferably laminated and the inherent change in selectivity may be related to the change in amplification of the receiver.
Patent GB-139439-A (GB)
Title: Improvements in or relating to tea leaf rolling machines
IPC: A23F3/12
Filed: 1919-11-04
Abstract: 139,439. Gawthropp, S. C. Nov. 4, 1919. Tea, rolling.-In a tea-leafrolling machine in which the leaf passes through the space between a roller 1 and an outer casing 3, which may be rotated in opposite directions, and one or both of which may be reciprocated longitudinally, the roller is tapered towards each end, and the casing is formed so that the clearance between the casing and the roller progressively decreases towards the outlet end, the area of clearance at the outlet being about one. quarter that at the inlet. The roller and casing are formed with spiral ribs or grooves 4, 5, or with disks or studs. The machine is operated from a shaft 12 through a shaft 18<1> which rotates the casing through gear-wheels 16, 19, 17, 20 and rotates the roller through sprocket-wheels 29, 30 connected by a chain or the like. The roller is reciprocated by a sleeve 26, and a connecting-rod 25 adjustably connected to a disk 24 rotated by a worm 23 and gear-wheel 21 from the gear-wheel 19. To prevent overheating the discharge end of the casing may be perforated to admit air, or the leaf may be passed in series through two machines separated by a cooling hopper.
Patent GB-172165-A (GB)
Title: Improvements in furnace fronts
IPC: F23M7/00
Filed: 1920-09-23
Abstract: 172,165. Reid, J. Sept. 23, 1920. Furnace fronts; air supply, regulating.-In furnace fronts for steam-boilers adapted for forced draught, the supply of air to the ash-pit and to the casing surrounding the firing opening is controlled by valves e, e<1> connected by a rod f and arranged so as to turn simultaneously in the same direction, the left-hand valve serving to direct air downwardly towards the ash-pit and the right-hand valve serving to direct air to the air casing surrounding the firing opening b. The valves are pivoted towards their top edges to increase the valve opening at the bottom. A vane g directs the air entering above the valve e to the casing surrounding the firing opening. Instead of single valves, lower valves of the form shown in Fig. 2 may be employed adapted to be operated by a lever k, connecting-link f, and bell-crank levers i. The valves may be interlocked with the furnace door to prevent it from being opened while the forced draught is on.
Patent GB-864512-A (GB)
Title: Improvements in and relating to the hardening of foundry cores or moulds
IPC: B22C9/12
Filed: 1959-08-07
Abstract: 864,512. Treating moulds and cores. HANSBERG, F. Aug. 7, 1959 [Aug. 30, 1958 (2)], No. 27151/59. Drawings to Specification. Class 83 (1). The subject-matter of the Specification is the same as that of Specification 864, 511, which is referred to, the claims being characterized by details of the vacuum-device.
Patent GB-446155-A (GB)
Title: Improved construction of block for roadways and the like
IPC: E01F9/06
Filed: 1935-10-02
Abstract: 446,155. Paving-blocks. LORD, E., 8, Walden Place, Welwyn Garden City, and WEBSTER, W. K., Lea Croft, Oatlands Drive, Weybridge, Surrey. Oct. 2, 1935, No. 27198. [Class 87 (i)] Paving-blocks of the kind consisting of an open box-like metal base and a rubber filling 2 keyed in holes 1b in the base, are formed with the upstanding flanges 1a offset to provide shoulders 1c and with ribs or projections 1d to key with the foundation or surface layer 4. The holes 1b may be conical, or cylindrical with countersunk or enlarged lower ends. Additional anchoring means for use in heavy traffic consists of a bifurcated rod 6a screwed into a hole 5, or pins or projections may be formed on the underside of the metal base. The blocks may be inset in wooden paving-blocks.
Patent GB-642403-A (GB)
Title: Improvements in and relating to controls for aircraft and other vehicles
IPC: B64C1/00
Filed: 1946-09-11
Abstract: 642,403. Craft automatic control systems. BOULTON PAUL AIRCRAFT, Ltd., and NORTH, J. D. Sept. 11, 1946, No. 27257. [Class 38 (iv)] [Also in Group XXIX] A control system for an aeroplane, submarine, &c. comprises a manually-operated column 1 connected to a transmitting Selsyn 2 which is coupled to a receiving Selsyn 3 for controlling a servo-mechanism 4 actuating the control surface 5, and means, such as a gyroscope 8, for detecting angular displacement of the vehicle about one or more reference axes, is connected to a differential Selsyn 6 interposed between the transmitting and receiving Selsyns 2, 3. The signal from the gyroscope can be applied to the slider of a potentiometer, and the resultant voltage passed to Selsyn 6 through an electrical power amplifier, or, alternatively, a mechanical or fluid-pressure servomotor link can be used between the gyroscope and Selsyn. Separate gyroscopes may be employed for roll, pitch, and yaw, and voltages corresponding to rate and/or acceleration of the deviation may be obtained from an electrical pick-off or from a variable induction gyroscope and added through differentiating circuits to the original signal. According to the Provisional Specification, a differential gear is interposed before the servo-mechanism 4 and the movement of the controlled member is fed back into the differential, and the output of the servomechanism is also fed to a variable-delivery hydraulic generator which supplies a hydraulic motor or ram moving the control surface.
Patent GB-456029-A (GB)
Title: Manufacture of coloured lacquers and coating compositions
IPC: C08K5/00
Filed: 1935-10-03
Abstract: Triarylmethane and phthalein dyes.--Lacquers and film-forming coating-compositions, e.g. of the types specified in the parent Specification, including gelatine solutions, are coloured by converting a mordant dyestuff of the triarylmethane series or a leuco compound thereof into a metal compound of the dyestuff by treatment, in the lacquer or composition itself, with an agent yielding a metal other than chromium.  The colourations are fast to light.  The following examples are specified: (1) The dyestuff acid of Eriochrome azurol B and copper acetate are added to a nitrocellulose lacquer and the mixture is gently warmed; (2) The dyestuff acid of Eriochrome geranol R is similarly used with copper acetate to colour an acetylcellulose lacquer; (3) The dyestuff acid of Eriochrome cyanine R is similarly used with cobalt acetate to colour an acetylcellulose lacquer; (4) The dyestuff obtainable by condensing 2-chloro-4-dimethylaminobenzaldehyde (1 mol.) with o-cresotinic acid (2 mols.) is similarly used with nickel acetate to colour a spirit lacquer; (5) The dyestuff of (4) is similarly used with ferrous acetate or an equivalent mixture of ferrous sulphate and sodium acetate to colour a nitrocellulose lacquer; (6) The phthalein mordant dyestuff obtainable by condensing phthalic anhydride with dimethyl-m-aminophenol and b -resorcylic acid is similarly used with copper acetate to colour a nitrocellulose lacquer.  Specification 309,148, [Class 2 (iii)], is referred to.ALSO:Film-forming gelatine solutions are coloured by converting a mordant dyestuff of the triarylmethane series or a leuco compound thereof into a metal compound of the dyestuff by treatment, in the solution itself, with an agent yielding a metal other than chromium.  The colourations are fast to light.
Patent GB-984971-A (GB)
Title: Improvements in electric water heaters having protective arrangements
IPC: F24H1/10
Filed: 1962-07-17
Abstract: 984,971. Protective systems. A. ECKERFELD. July 17, 1962, No. 27350/62. Heading H2K. An electric water heater having heating coils 5, 5<SP>1</SP>, 5<SP>11</SP> which are in direct contact with the water and which are connected together to form a neutral point 6 near the heater entry and exit, is protected by a trip coil 11 which is conencted to the neutral point 6 and, in the event of leakage current, releases a circuit-breaker 9. In Fig. 1, the coil 11 is connected between the neutral point 6 and earth 7. To prevent operation of the heater should the earth be unsatisfactory, a contactor 13 has its operating coil 14 connected between one phase T and the earth 7 in series with a flow pressure switch 15, 16. In Fig. 3, the coil 11 is connected between the neutral point 6 and a further artificial neutral point 6<SP>1</SP> formed by water column resistances a<SP>1</SP>, b<SP>1</SP>, c<SP>1</SP> extending between the ends of the heating coils and conducting members 26, 26<SP>1</SP>, 2611. To prevent incorrection should one phase fail, the contactor 13 has its operating coil 14 connected between two phases under the control of a relay 27, 28 having its operating coil connected to the third phase. In a further arrangement, Fig. 2 (not shown) a flow-pressure responsive switch in the main supply circuit is latched open by an electromagnetic device should the earth circuit be incomplete.
Patent GB-1272913-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: B01F15/00
Filed: 1970-06-05
Abstract: 1,272,913. Mixing apparatus. C. G. HAHN and K. V. HOLDT [trading as SCHRODER & CO], 5 June, 1970 [6 June, 1969], No. 27394/70. Heading B1C. [Also in Divisions B3 and F2] A mixer and heat exchanger has a tubular treatment chamber the inner surface of which is of non-circular shape (e.g. elliptical, oval or a curved polygon) and which has a scraper knife rotatably mounted about its axis. The outer surface of the tube may be cylindrical and surrounded by the heat exchange medium. As shown the inner surface 1 is elliptical of major axis d 1 , and minor axis d 2  and is scraped by blades 2 movably attached to a shaft 3 which in operation is rotated at about 1,000 rev./min. The blades vibrate, with a kneading effect. The tube may be of wear-resistant steel, and may be chromium plated; it may be made by deforming a cylinder in a clamp and restoring its external surface to a cylindrical cross-section by machining. The apparatus may be used for crystallizing, polymerization and emulsification and in the production of margarine and ice-cream.
Patent GB-756223-A (GB)
Title: Process for the production of oxygen-containing hydrocarbon compounds
IPC: C07C45/50
Filed: 1952-10-31
Abstract: Unsaturated hydrocarbons together with any oxygen-containing hydrocarbon derivatives produced in a first stage from CO and H2 at above 400 DEG  C., preferably between 550 DEG  and 700 DEG  C., in the presence of hydrogenation catalysts which are completely free from catalytically active iron, cobalt or nickel compounds are reacted in a second stage with CO and H2 at 60 DEG -250 DEG  C. in the presence of iron, nickel or preferably cobalt catalysts. Preferred CO : H2 ratios are 0.8 : 1 to 1 : 1.3.  A gas mixture obtained by gasifying solid fuels at about 10-40 atmospheres with oxygen or air enriched with oxygen and steam, cf. Specification 364,407, [Group XII], may be used.  Catalysts for the first stage are oxygen-containing compounds, e.g. oxides, nitrates and carbonates, of metals of the second to the seventh group of the periodic system and they may be activated by a pretreatment with, e.g. hydrogen, steam or acids.  Many metals are specified whose oxygen-compounds afford catalysts and mixtures such as thoria-alumina and alumina-molybdenum oxide may be used. Compounds of metals of the first group may also be present in the catalysts as may alkalis, e.g. 3-5 per cent of K2O. The catalysts may be on carriers and disposed in one or more vessels and may be fluidized.  With thoria catalysts a synthesis temperature of about 450 DEG  C. may be used.  The oxo synthesis is preferably at 140-180 DEG  C. and advantageously at pressures of above 40 atmospheres gauge, e.g. 80, 100 and 150 atmospheres gauge. Conventional cobalt carbonylation catalysts may be used. Solvents, e.g. liquified propane or butane or reaction products may be present to aid the removal of aldehydes from the products. The aldehydes may be hydrogenated to alcohols.  In an Example, CO and H2 in a volume ratio of about 1 : 1 is converted at 580 DEG  C. and 100 atmospheres gauge in the presence of a catalyst consisting of alumina with some molybdenum, chromium and tungstic oxides and the products passed to an oxostage conducted at the same pressure and a temperature of about 170 DEG  C. in the presence of pumice impregnated with cobalt nitrate, the aldehyde product being hydrogenated at about 160 DEG  C. and in a subsequent stage at 195 DEG  C. to give mainly propyl with some butyl, amyl and higher alcohols.  Specifications 542,836, 692,804, 728,444, 734,577 and 750,399, [all in Group XII], also are referred to.
Patent GB-1208577-A (GB)
Title: Methods of manufacturing semiconductor devices
IPC: H01L21/32
Filed: 1967-10-02
Abstract: 1,208,577. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 2 Oct., 1967 [5 Oct., 1966], No. 27516/70. Divided out of 1,208,574. Heading H1K. The subject-matter of this Specification is substantially the same as that described in Specifications 1,208,574 and 1,208,575 but the claims are concerned with a method of oxidizing part of the surface of the silicon body comprising a step during which silicon oxide is caused to grow into the silicon body to form a layer which is partially sunk into the body, a step during which this oxide layer is partially or completely removed, and a further step during which silicon oxide is caused to grow into the silicon to form an oxide layer which is partially sunk into the body to a greater depth than was the first oxide layer.
Patent GB-649373-A (GB)
Title: Improvements in and relating to refrigerating systems
IPC: F25D11/02
Filed: 1948-10-22
Abstract: 649,373. Refrigerating. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 22, 1948, No. 27531. Convention date, Oct. 22, 1947. [Class 29] A closed secondary evaporating - condening system has a valve 6 located intermediate the condensing portion 4 and the evaporating portion 5 and has the pipe 11 conducting vaporized refrigerant from the evaporating portion to the condensing portion in intimate heat exchange relation with the pipe 12 conducting liquid refrigerant from the condensing portion to the evaporating portion. As shown the pipes 11, 12 are soldered together, the vapour pipe 11 being arranged below the liquid pipe 12 so that any refrigerant condensing in the the pipe 11 flows back along the bottom of this pipe and does not retard the heat exchange. Flow of liquid refrigerant from the pipe 12 to the evaporating portion 5 is controlled by the valve 6 operated by a bellows subject on its outside to the pressure of an inert gas such as nitrogen in a closed chamber, and on its inside to the pressure of the refrigerant in the evaporating portion. When the load on the evaporating portion is low the valve 6 is closed holding condensed refrigerant in the lower part of the condensing portion 4, and the heat exchange between the pipes 11, 12 prevents undesirably low temperatures in the evaporating portion when the valve opens.
Patent GB-303934-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M19/00
Filed: 1927-10-17
Abstract: 303,934. Dehn, F. B., (Thelma Carburator Co., Soc. Anon). Oct. 17, 1927. Spray-carburettors.-Means for uniting a carburettor 1 to the cylinder, induction pipe, or the like, so that the carhurettor may be adjusted in position and a tight joint ensured, comprises a detachable and adjustable flange 3 screwed on to the carburettor outlet and adapted to be bolted to the cylinder, induction pipe or the like, the screwed part 2 of the carburettor being longer than the of the flange. Specifications 281,027 and 304,223 are referred to.
Patent GB-689160-A (GB)
Title: Improvements in conches for the manufacture of chocolate
IPC: A23G1/12
Filed: 1951-11-24
Abstract: 689,160. Chocolate conches. FRISSE, R. Nov. 24, 1951, No. 27600/51. Class 86 A double conch for the treatment of chocolate is provided, in each compartment 1, with rotary stirring blades 3 and deflector blades 4 shaped as ploughshares, on a vertical driving shaft 9, the deflector blades being adapted to deflect material from one compartment of the conch to the other.