baber/WOPTO huggingface dataset:
Patent GB-445923-A (GB)
Title: Improvements in and relating to electric supply meters
IPC: G01R11/56
Filed: 1935-10-11
Abstract: 445,923. Supply meters. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Oct. 11, 1935, No. 28135. Convention date, Oct. 11, 1934. Addition to 437,761. [Class 37] In the arrangement claimed in the parent Specification for recording the number of times predetermined quantities of electrical energy have been consumed in less than a predetermined time, the timing disc is in the form of a heart-shaped cam 10 which is periodically returned to its initial position by a spring controlled plunger 15 resting on its periphery. The shaft 1 of the timing motor drives a planet wheel 2 which rotates between sun-wheels 3, 4 loosely mounted on the shaft. The wheel 3 is normally locked by a pawl 6 which engages a ratchet wheel 5 secured to the wheel 3, and the planet wheel 2 drives the wheel 4 which is secured to a wheel 7 geared to the cam 10. The cam rotates in the direction shown by the full line arrow and rotates a pawl 12 idly over a ratchet wheel 13 connected to the rollers 14 of a meter mechanism. If an impulse from the consumption meter reaches an electromagnet 24 before the cam has made a half revolution, a lever 22 is attracted and the pawl 6 is disengaged from the ratchet wheel 5, whereupon the plunger 15 resets the cam in the direction shown by the dotted arrow, and the pawl 12 advances the mechanism 14 by one step. If no impulse arrives, the cam 10 continues to rotate in its original direction until a pin 16 carried by the cam engages an inclined surface 18 on an arm 19 carrying the pawl 6, and moves the pawl out of engagement with the ratchet wheel 5. The pin 16 is then held by a stop 17 on the lever 19 until an impulse arrives from the consumption meter, whereupon the electromagnet 24 attracts the lever 22, which, depresses the lever 19 still further to release the pin 16 and permit the plunger 15 to complete the movement of the cam disc 10 to its original position.
Patent GB-895953-A (GB)
Title: Improvements relating to x-ray tubes
Inventor: DIGBY BASIL
IPC: H01J35/10
Filed: 1957-09-06
Abstract: 895,953. Supplying current to rotating conductors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 8, 1958 [Sept. 6, 1957], No. 28227/57. Class 38 (1). [Also in Group XL (a)] The spindle carrying the rotatable anode of an X-ray tube has an extension of reduced diameter which is in contact with a wheel, electrical connection being made with the anode via the said wheel and a leaf-spring attached to a terminal support. In the form shown, the anode 1 is joined by a neck 3 to a sleeve 2 and a spindle 5. The latter rotates in bearings 6 within a stem 7 which is sealed through the tube envelope 8, the stem 7 forming the electrical lead-in to the anode. The inner surface of the stem 7 is coated with anodized aluminium to insulate the ball-bearings 6 therefrom. This insulating effect is increased by the use of molybdenum disulphide as a lubricant for the bearings. To provide an electrical path from the terminal stem 7 to the anode, the anode spindle 5 ends in a pin-like extension 10 which rotates in contact with a wheel 11. The axle of the wheel is supported in the cranked end 16 of a U-shaped spring 12, the spring being secured by a screw 13 to the terminal stem 7.
Patent GB-909016-A (GB)
Title: Improvements in or relating to appliances for feeding livestock
IPC: A01K39/012
Filed: 1960-08-15
Abstract: 909,016. Animal feeding devices. ELT, L. G., and ELT, J. H. Aug. 14, 1961 [Aug. 15, 1960], No. 28229/60. Class 5(2). An animal feeding appliance comprises a foodstuff container 4 supported in a cir cular trough 1, any a cover 6, 7 movable between a position in which it closes the trough and an oper position, the cover being held in the open position by the engagement of pins 12 on the cover in notches 11 provided in channel-shaped abutments 8 riveted to the container 4.
Patent GB-675824-A (GB)
Title: Improvements in or relating to condensers for refrigerating apparatus
IPC: F25B39/04
Filed: 1950-11-17
Abstract: 675,824. Making refrigerator condensers. ABBEY, A. (Bolinders Fabriks Aktiebolag.). Nov. 17, 1950, No. 28231/50. Class 83 (ii). [Also in Group XIII] Finned condenser tubes are made by sliding U-shaped fins 7 on to a straight tube, expanding the tube to fix the fins in position, and then bending the tube through 180 degrees so that the bases 10 of the fins come closely adjacent each other. The fins are made from bent-up sheet-metal blanks.
Patent GB-285132-A (GB)
Title: A novel method of framing and mounting pictures, glass tablets, mirrors, swing signsand the like
IPC: A47G1/06
Filed: 1926-11-10
Abstract: 285,132. Bundy, F. W. Nov. 10, 1926, Picture and like frames.-Pictures, mirrors, advertising tablets, swing signs, &c. are mounted by means of a continuous trough-shaped moulding, Fig. 1, of soft non-rusting metal, such as lead, pewter, or aluminium, which may be bent around, and caused to conform to the shape of, the article to be framed, the free ends being then secured together by soldering, welding, &c. Plastic waterproof material or rubber-coaled fabric may be applied to the inside of the moulding, to exclude air or moisture, and the flanges of the moulding may be pressed into contact with the article. A layer of harder metal may be applied to the moulding electrolytically, or it may be enamelled or bronzed. The. moulding may be used as a means of attachment for outer members and embellishments of harder metal, as shown in Fig. 4. Two or more tablets may be held together in one frame.
Patent GB-929523-A (GB)
Title: Fluid flow control valve
IPC: E02F9/22
Filed: 1961-08-03
Abstract: 929,523. Valves; hydraulic apparatus. PARKER-HANNIFIN CORPORATION. Aug. 3, 1961 [Aug. 22, 1960], No. 28275/61. Classes 69 (2) and 135. A front-end loader or similar hoisting or excavating apparatus is operated by a pair of hydraulic rams 11, 17, Fig. 1, the fluid actuation of each of which is controlled by one of a pair of manual valves 18, 19. Each valve is of the spool type and is urged to a neutral position by a spring 41, Fig. 3; an extension 46 of the spool 18 embodies spaced grooves 47, 48 with which co-operate detent balls 50 urged radially by a cam surface 52 on a spring-loaded piston 57 slidable in a cylinder that is connected by a conduit 65 to another cylinder 62, Fig. 4, in which slides a spring-loaded piston 63, the two pistons forming a telemotor. The cylinder 62 has bleed ports 73 opening into a reservoir 61, which ports coact with bleed ports 72 in the piston 63; a pressure-relief valve 67 and a " make-up " valve 68 are also provided, a tube being employed to ensure that the inlet of valve 68 is below the level in the reservoir when the device is tilted or vertical. Each piston 63 has an extension which is operable by a cam 70 or 71, Fig. 1, on the loader boom 2 and the ram 17, respectively. Upon moving either spool to a position in which its ram is to exert a thrust, the spool will be held by the balls 50 engaging one of the grooves 47, 48; concomitantly the fluid displaced by movement of the piston 57 enters the reservoir 61 via bleed ports 72, 73. When the movement of the associated ram is complete the corresponding cam 70 or 71 urges the related piston 63 inwardly, firstly disconnecting ports 72, 73 and then displacing fluid through the conduit 65 to translate the piston 57 to release the balls 50 and enable the spring 41 to re-centre thes pool. Cams may be pro. vided for releasing the valves from their other operating position.
Patent GB-303740-A (GB)
Title: A rotatable air or gas filter of the plate type
IPC: B01D45/08
Filed: 1928-10-05
Abstract: 303,740. Schirp, A. Jan. 7, 1928, [Convention date]. Dust collectors. -An air &c. filter comprises a series of corrugated plates a hinged to the links of an endless chain travelling o v e r shafts b<1>, b<2> so located that the plane of movement of the plates is transverse to the air stream. The plates a, Fig. 4, are kept spaced apart from each other by punched projections i and are hinged in pairs on pins k so that they slope slightly downwards to cause excess of moistening liquid to drip into the side frames p and to run back into the trough without being caught up in the air stream. The sprockets g are few, so that the groups of plates a spread out well when turning over the top. A number of such chains are located side by side driven by chain or other gearing.
Patent GB-1072157-A (GB)
Title: Process and equipment for the continuous melting of solids
IPC: C08G63/78
Filed: 1964-07-13
Abstract: 1,072,157. Melting apparatus. VlCKERSZIMMER PLANUNG UND BAU VON INDUSTRIEANLAGEN A.G. July 13, 1964 [July 11, 1963], No. 28795/64. Heading B1X. Solid raw materials for use in the production of plastics are melted by feeding them to a melting unit, extracting molten material from the unit at one level, heating it by passage through a heat exchanger, and returning at least a part of the heated molten material to the melting unit below the said level. As shown, material melted in the unit 1 is circulated externally unit 1 via port 9 and heat-exchanger 8, where it is heated to a predetermined temperature above its melting point, and returned via port 10. The circulated melt passes up riser pipe 13, together possibly with melt and solid particles from region 4 via space 18, overflows through apertures 17, passes down annular space 14 defined by a pipe 12, together with solid particles for melting charged through port 2, and then passes up annular space 15 for recirculation as above. Heating jackets 3 is used to melt the initial solid charge, and melt may be tapped off at 11. Nitrogen gas may be controllably introduced via port 5A. In Fig. 2 (not shown), straining means (21a and 21b) are situated adjacent port 9, and in Fig. 3 (not shown), the heat exchanger (30) is situated inside the melting unit 1. In Figs. 2 and 3, members 12 and 13 are absent.
Patent GB-1001336-A (GB)
Title: Helical gear pump
IPC: F04C2/107
Filed: 1964-07-14
Abstract: 1,001,336. Helical gear pumps. MONO PUMPS Ltd. July 14, 1964 [July 25, 1963], No. 29000/64. Heading F1F. A helical gear pump of the Moineau type includes inner and outer members of equal pitch with the inner member having one more start on its external thread than the outer member has on its internal thread and the teeth shaped in transverse cross-section to give continuous sealing contact between the members. As shown in Fig. 1, the inner member or rotor 10 is of elliptical form and the outer member or stator 11 similar to that of a cardiod. As the rotor 10 rotates its own centre describes a circle 12 whose radius is equal to E, i.e., twice the difference between the semimajor axis a and the semi-minor axis b of the ellipse. The number of points of contact equals the sum of the starts of the two members, i.e., in the present case two plus one, except in that position in which the small end of the rotor passes the nodal point on the stator. In another embodiment, Fig. 5, a substantially triangular, three-start rotor 20 rotates in a bi-arcuate, two-start stator 22. The inner member is preferably made of metal and the outer member of natural or synthetic rubber, but this arrangement may be reversed. It is usual to drive the inner member through a flexible drive such as a universal joint or Cardan shaft with the outer member remaining stationary but since the members are symmetrical about their respective axes, the outer member may be driven with the inner member freely rotating therein. The speed of the inner member with respect to the outer member then being in the inverse ratio to the number of starts on the two members. The flexible drive is then omitted.
Patent GB-738301-A (GB)
Title: Improvements in and relating to the control of electrically-driven axial flow fans
IPC: H02P7/00
Filed: 1952-11-17
Abstract: 738,301. Control of several motors. WOODS OF COLCHESTER, Ltd., and DALY, B. B. Feb. 17, 1954 [Nov. 17, 1952], No. 29036/52. Class 38 (3). Relates to a multi-stage axial flow fan system consisting of a sequence of impellers of aerofoil section, successive impellers rotating in opposite directions and being driven each by its own electric motor, no stationary guide vanes being used and the pitches of the impellers being made such that by running them all at the same speed, each takes the same power to drive. Provision is made for switching the motors on or off in succession in order to provide regulation of the fan duty, and the order of switching is such as to avoid overloading of any of the motors left running. Thus, in order to vary the duty of the complete fan, stages may be switched on or off in adjacent pairs, the switching being substantially simultaneous so as to avoid instant tripping of a circuit breaker or burning out of an overloaded motor. Other suitable selections of the order of switching may be made, it being possible to switch off any number so as to leave the odd stage unloaded, and a circuit diagram for a six-stage system, with three pairs of oppositely-rotating stages, is shown. The arrangement is such that when all the stages are in operation, the final stage imparts no rotational component to the air. The motors are of the three-phase type with individual contactors C1-C6 controlled by push-buttons B1-B6. The interlocking between contactors is such that stages 2, 4, and 6 can be started independently whilst stage 1 is started after stage 2 and stage 3 after stage 4. When stage 6 has been started, stage 5 may be operated, so that the fan system is adapted for starting in the order of stages 2, 1, 4, 3, 6 and 5. Each contactor is provided with a stop switch S1-S6, and, assuming that all the stages are running, the system is adapted for switching off in the reverse order to that for starting.
Patent GB-263274-A (GB)
Title: Improvements relating to biscuit cutting machines
IPC: A21C15/04
Filed: 1925-11-18
Abstract: 263,274. Marsden, P. Nov. 18, 1925. Sheetcutting machines - Biscuit-cutting machines are provided with cutters and embossers adapted to be interchanged without dismantling the machine. The cutters comprise tubular members b embracing back plates c connected to the machine by screws e<1>, the cutters being removably secured by screws e<2>. The embossers d are formed with a rabbeted face portion to receive a face member d<1> which is interchangeably secured by a screw f. Lettering &c. is formed on a flanged metal plate interchangeably screwed in an appropriate slot d<2> in the face member d<1>.
Patent GB-811831-A (GB)
Title: Improvements in or relating to rectifier rolls for flow evening in paper making machines
Inventor: HORNBOSTEL LLOYD
IPC: D21F1/02
Filed: 1957-09-16
Abstract: 811,831. Rectifier rolls of paper-making machines. BELOIT IRON WORKS. Sept. 16, 1957, No. 29142/57. Class 96. To reduce the bending moments at the ends of a rectifier roll 23 in an open-, or closedtopped flow-box of a paper-making machine, a trunnion projecting from each end of the roll and passing through a side wall 16 of the flowbox is journalled in two or more bearings 29, 30, spaced apart along the trunnion. Packing 31, lubricated at F, may be provided. The rectifier roll may be free from internal obstructions other than the usual rectifying discs. One or more rectifier rolls may cover substantially the whole depth of pulp in the flow-box, the level of which may be maintained by a blow-hole. In a modification, the trunnions are secured to the ends of the roll 23 by resilient rings, e.g. of hard rubber.
Patent GB-270169-A (GB)
Title: Improvements in coiled springs
IPC: F16F1/06
Filed: 1926-11-19
Abstract: 270,169. Timmis, E. W. Nov. 19, 1926. Helical springs are wound from circular or other section metal tubes A containing one or more concentric inner tubes B or rod C, the tubes or rod touching one another throughout their length or being separated as at D.
Patent GB-733235-A (GB)
Title: Improvements in processes of, and compositions for forming phosphate coatings on metallic surfaces
IPC: C23C22/17
Filed: 1952-11-19
Abstract: A phosphating solution comprises a coating phosphate and an alpha-amino-polycarboxylic acid.  The latter may be ethylene diamine tetra-acetic acid, triglycine or trimethylene diamine tetra-acetic acid; the acid may be added as its sodium salt. Phosphates of zinc, manganese or iron may be used.  Accelerators may be present, e.g. nitrates, nitrites, chlorates, bromates, iodates, sulphites, m-nitrobenzene sulphonate, hydroxylamine, picric acid.  Fluorides, borofluorides, nickel sulphate and nickel nitrate may be present. Ferrous, zinc and aluminium surfaces may be treated.
Patent GB-787397-A (GB)
Title: Process for heating fine granular fuels
IPC: C10B49/08
Filed: 1955-10-14
Abstract: 787,397. Carbonizing non-coking fuels. KLOCKNER-HUMBOLDT-DEUTZ AKT.- GES., and COLLIN AKT.-GES. ZUR VERWALTUNG VON BRENNSTOFFEN UND METALLEN, F. J. Oct. 14, 1955 [Oct. 14, 1954], No. 29347/55. Clasess 55 (1) and 55 (2). In a process for heat treating fine grained non-caking fuels, e.g. brown coal, hard coal and peat, while suspended in a hot gas, hot gas from a combustion chamber 17 passes in countercurrent to the fuel being treated through a series of interconnected cyclone separators 12, 11, 10 and 9, treated fuel being withdrawn at 16a and gaseous products at 19a. Dried fuel is fed from a separator 6 into a stream of hot gas rising from separator 10 in conduit 10a and is suspended in the gas and passed into separator 9, the gas separated in separator 9 passes by line 18 to the outlet 19a while the solids separated are suspended in a stream of hot gas rising from separator 11 in conduit 11a. This process is repeated in separators 11 and 12, the solids separated in separator 12 being the treated product. The hot gases from chamber 17 may be from 400-1100‹ C. and the temperature of the gases discharged at 19a is preferably maintained above the dew point of tar in the gases. Wet fuels from a hopper 4 are predried by suspending them in hot gases from a combustion chamber 1, the suspension passing by line 3 into the separator 6, the hot gases separated being in part recycled by line 2a and in part withdrawn at 7. The treated fuel containing 20-25 per cent volatile matter may be mixed with a good caking coal in equal proportions and carbonized in known manner to produce a metallurgical code.
Patent GB-758998-A (GB)
Title: A method of making thin walled reinforced structural panels from metal sheets
IPC: B23P17/00
Filed: 1954-10-12
Abstract: 758,998. Etching. NORTH AMERICAN AVIATION, Inc. Oct. 12, 1954 [Oct. 30, 1953], No. 29356/54. Class 100 (2). Selected areas of a metal sheet formed into a desired configuration are etched away to produce a product such as a structural panel. The etching agent may be caustic soda solution or an acid, and the resist may be a vinyl film, a copper engraving, or photo-sensitive gelatin. The etching may be done in a bath. Different etching depths and tapered formations can be produced by repeated etching with resist added to parts when their depth is sufficient and progressive withdrawal from the bath. Fig. 1 shows a rocket booster casing produced by welding together at 11, 12 two semi-cylindrial sheets, protecting the inner surface, and the outer surface adjacent the weld zone, and etching away the parts 16. Fig. 4 shows a panel formed with strengthening ribs 41, raised parts 42, one having an opening 43 for attachment to other members, and a tapered portion. Fig. 7 shows part of a curved composite panel formed by etching away parts of separate panels, as 70, 71, 72, and welding the etched panels together at 73, 74, 75.
Patent GB-1154706-A (GB)
Title: Accessory Lens
IPC: G02B15/00
Filed: 1966-06-30
Abstract: 1,154,706. Supplementary lenses. EASTMAN KODAK CO. June 30, 1966 [June 30, 1965], No.29376/66. Heading G2J. In an optical printer, wherein an object 10 is imaged by a lens 6 to provide an image which properly fills the desired format, in order to provide the same sized image for an object 9 placed in the same position as object 10 without alteration of lens 6 it is necessary that an auxiliary lens I, called a Bravais lens, must be such that it forms a virtual image of object 9 in the same plane as object 9 and of the height 10, and this is achieved by lens I having each of its principal points closer to its respective focal point than to the other focal point i.e. the two focal lengths do not overlap, and ensuring that at least half the distance between the principal points lies between the front and rear surfaces of the lens I. The accessory lens may be a single positive component, as shown, or a pair of air-spaced positive components. Optical data are given for four examples.
Patent GB-155104-A (GB)
Title: Improvements in or applicable to excavators, grabs and similar apparatus
IPC: B66C3/12
Filed: 1919-11-25
Abstract: 155,104. Prince, S. Nov. 25, 1919. Grab-buckets.-A double-chain grab &c. is furnished with means to enable it to be raised or lowered in the open condition on the hoisting-rope. The hoisting-rope e passes through an opening in a lever d, shown separately in plan in Fig. 3, wide enough at one part to permit the passage of the ball f, but having a narrower portion with an incline d' leading to the wider portion. The grab is shown open and supported by the hoisting-rope ready for lowering. When it contacts with the ground, the descent of the ball f allows the lever d to drop, bringing the wider part of the gap over the ball. The hoisting-rope can then be hauled in for closing the grab and lifting it. During this operation, the finger b on the side arm a, acting through the lever c, brings the lever d again to an horizontal position. When it is desired to discharge the grab, the load is thrown on to the opening-rope h. The lever g is thereby caused to press upon and hold the lever d while the hoisting- rope is paid out to open the grab, the ball f sliding down the incline a<3> and passing through the wide portion of the gap in the lever. When the grab has opened the hoisting-rope is again raised to take the load and the grab is then again ready for lowering in the open condition.
Patent GB-1150446-A (GB)
Title: Fluid-Operable Reciprocating Motors
Inventor: RODELL ALAN WILLIAM
IPC: F03C1/28
Filed: 1966-06-30
Abstract: 1,150,446. Compressed air or hydraulic reciprocating motors. A.W. RODELL. May 25, 1967 [June 30, 1966], No. 29381/66. Headings F1A and F1S. A compressed air or hydraulic motor, e. g. for small portable power tools, comprises a rotary cylinder block 7 on a drive shaft 8 with axial cylinders 9 connected alternately to inlet and exhaust ports 11, 12, and having ball pistons 10 engaging an inclined surface or multi-lobed cam surface 16. The motor casing end cover 3 is loaded by springs 5 and lifts to relieve excessive pressure in the casing. Free pistons 19 of nylon may be provided, as shown, to improve sealing and to act as buffers. Shaft 8 is supported by nylon bushes 17, 18. Cam member 14 is located by bolts 15. In another embodiment, Figs.1 to 4 (not shown), the motor has a cylindrical casing held between end plates by tie bolts, one end plate being spring-loaded.