baber/WOPTO huggingface dataset:
Patent GB-221851-A (GB)
Title: Improvements in or relating to vacuum electric tubes
IPC: H01J9/04
Filed: 1923-06-12
Abstract: 221,851. Robinson, E. Y. June 12, 1923. Alkaline earth metals and alloys, depositing; electrodes; preparing surfaces; treating after electrolysis. - An electron-emitting cathode is formed by depositing one or more alkaline earth metals, calcium, barium, or strontium on a filament, wire or sheet of tungsten, molybdenum, platinum, platinum-iridium or carbon. A platinum filament &c. is cleaned by immersing first in nitric acid and then in ammonia, or by boiling in caustic soda solution with subsequent washing in water. A tungsten or molybdenum wire is cleaned by heating in hydrogen, and a tube or sheet of the same metals by dipping in molten sodium or potassium nitride with subsequent washing in water. The electrolyte may consist of iodide of the alkaline earth metal, dehydrated by heating at 180‹ to 200‹ C for two hours, and dissolved in acetone, or a solution of the iodide in acetone may be dried over an hydrous sodium sulphate or calcium chloride for two or three days. The voltage may be raised continuously during deposition and a voltage of 100 may be necessary to keep the current constant. A mixture of barium and strontium may be formed by placing a filament alternately in baths of the corresponding nitride or in a single bath of a mixture of the iodides of the metals. The deposited metals alloy with each other when the filament is heated subsequently. A base such as platinum may be alloyed with the alkaline earth metals by heating for a short time in pure hydrogen but in some cases flashing in air is sufficient. The coating may be converted into oxide by leaving the filament in dry air, but preferably by heating to 600‹ to 700‹ C. in air for one-half to two hours. In another method oxidation is effected by adding a little water to the electrolyte. The oxide coating may be protected by converting into carbonate by heating and cooling in carbon dioxide, the carbonate dioxide, the carbonate being reconverted into oxide by heat after the filament has been mounted in a valve. When the base consists of tungsten or molybdenum, which do not alloy with barium and strontium, the coated base is heated for 10 minutes at a dull red heat in hydrogen of commercial purity, and oxidation is effected by the oxygen or water vapour in the gas.
Patent GB-1402755-A (GB)
Title: Ventilating nozzle including a universally swivellable nozzle mem ber
IPC: F24F13/065
Filed: 1972-04-04
Abstract: 1402755 Valves CLEAR HOOTERS Ltd 3 April 1973 [4 April 1972] 15309/72 Heading F2V [Also in Division F4] An air supply unit for a motor vehicle comprises a housing 20, 21, a nozzle having an exterior surface in the form of a zone of a sphere for universal swivelling within the housing, the nozzle including a tubular body 1, at least one pivotally mounted flap 12 within the body 1, a sleeve 7 capable of rotation relative to the body 1 about the axis thereof but restrained from such rotation by the housing, and gearing interconnecting the sleeve 7 and flap(s) 12, whereby rotation of the body 1 about its axis produces opening and closing of the flap(s) 12. The sleeve 7 is prevented from rotating about the axis of body 1 by a felt strip 26 pressed against the sleeve 7 by a non-circular spring strip 25. The flap 12 is pivotally mounted about an axis extending diametrically of or along a chord of the body 1 and is elliptical. An arcuate rack 10 on the sleeve 7 in a space 15 is in mesh with a quadrant gear or pinion 14 carried by a pivot pin on the flap 12. The body 1 carries ribs 5 parallel or at right angles to one another. The components of the unit are made of synthetic plastics material.
Patent GB-874687-A (GB)
Title: Overthrow shovel
IPC: E02F9/22
Filed: 1959-05-05
Abstract: 874,687. Shovelling machines. BARTH, H., MEILLER, F. X., MEILLER, F. X., MEILLER, M., and MEYER, M., [trading as MEILLER FAHRZEUG-UND MASCHINENFABRIK KOMM.-GES., F. X.]. May 5, 1959 [Oct. 16, 1958], No. 15349/59. Class 68(1). In order that the scoop-carrying arms 1 of an overthrow shovel can be swung satisfactorily in a vertical plane from a forward loading position through the vertical to a rear discharge position there is provided to swing the arms 1 at least a pair of jacks 4, 5, the pivotal connections 6, 7 of the cylinders of said jacks with the chassis of the shovel being disposed one behind the other. A cam on the pivotal connection 7 of the jack 5 operates a valve to cause automatic reversal of the fluid pressure supply to the jack 5 as the arms 1 pass through the vertical so that the final rearward movement of the arms is under full power control of the jack 5. Preferably only a pair of jacks 4, 5 are used, the piston rod of each jack acting on one only of the arms 1.
Patent GB-789056-A (GB)
Title: Improvements in or relating to electric circuit interrupters
IPC: H01H71/44
Filed: 1956-05-17
Abstract: 789,056. Collectors. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. May 17, 1956 [May 23, 1955], No. 15380/56. Class 38 (1). [Also in Group XXXVII] The moving contact arm 33 of a circuitbreaker is pivoted at 35, on a bracket 37 mounted on a terminal conductor 41. Contact members 143 are held against surface 145 of arm 33 by a spring 147.
Patent GB-497996-A (GB)
Title: Improvements in and relating to shuttle propulsion means for ribbon looms
IPC: D03D35/00
Filed: 1938-05-23
Abstract: 497,996. Ribbon looms. SOC. ANON. A. SAURER. May 23, 1938, No. 15388. Convention date, June 22, 1937. [Class 142 (ii)] The shuttle or each shuttle is driven by toothed wheels 12 engaging teeth thereon. Each wheel 12 is mounted directly on so as to turn with a four cornered driving shaft 13, the end of each shaft may be journalled in frame extensions 15, so that the shafts are held stationary in space with respect to the lay 4, which is reciprocated on a guide beam 3 by an arm 5, a lever 6 and a cranked pin 7, the wheels 12 sliding on the shafts 13. These are provided with pinions 14 driven by a segmental' gear 17 having an arm 18 actuated by a cam drum 22. In a modification the shaft 13 is rigidly connected to the wheel 12 and slides in the pinion 14. In another, it is toothed over its entire free length and directly engages the teeth of the shuttle. In another the lay 4 is supported by and slides on the shafts 13, no separate guide beam being used. There may be several shuttles, the several driving segments therefor being linked together.
Patent GB-1416626-A (GB)
Title: Synthetic plastics films
IPC: C08K7/20
Filed: 1973-03-30
Abstract: 1416626 Plastics films BRITISH CELLOPHANE Ltd 19 March 1974 [30 March 1973] 15420/73 Heading C3P Plastics films having low adherence comprise 1 to 50 weight per cent of glass spheres of diameter 4 to 105 microns. The plastics material may be polyethylene, polypropylene or polyvinyl chloride. The films may be prepared by extruding through slot die, or as blown tubular film. Preferably the plastics material is premixed with an inert wetting agent, e.g. ethylene glycol or liquid paraffin, which is dissipated at the extrusion temperature. The films may be used as separators for two-side coated pressuresensitive adhesive tapes and uncured rubber sheets, as protective coatings on metal rods, and as carriers for pressure-sensitive adhesive labels.
Patent GB-640619-A (GB)
Title: Improvements in adjustable back chairs and similar furniture
IPC: A47C4/50
Filed: 1948-06-08
Abstract: 640,619. Seats. HEAL, L. C. June 8, 1948, No. 15424. [Class 52 (ii)] An adjustable back chair or the like is constructed so that as the occupant adjusts his reclining position the opening and closing forces applied to the chair &c. frame are arranged to balance one another. As shown, Fig. 1, the chair comprises a U-shaped member B the free ends of which are provided with a front cross bar and to which a U-shaped member A is hinged the members A, B and cross bar comprising the main frame. Towards the rear of the member B a U-shaped back member C is hinged and a flexible or transversely jointed seating member D is connected to the front cross bar and to the top bar of the back. Connecting the side limbs of the member B, and below the seating member, is arranged a band F. In the upright position of the occupant the member D is loose and the main weight of the occupant is borne by the band F thereby minimizing the tendency of the back C to close in to the main frame whereas when the back is in the fully reclining position of the occupant the opening and closing actions due to the distribution of weight of the occupant are substantially balanced. Fig 3 shows a preferred form of hinge in which a bracket G is shaped at one end to embrace the end of the member B and at the other end is shaped at right angles to fit the member A and is also provided with curved parts G3. A hinge pin H is retained in the bracket by a washer J let into a groove and passes through members A, B and fixed at its end in the cross bar E. A member A is turned to fold up the chair the limbs of the member B are forced apart and their resilience causes the member A to snap into the part G3 when the member A is brought into parallel relationship with member B. A similar hinge may connect members Band C. The front cross bar E may be of waved construction instead of straight. In a modification the hinges may be friction hinges.
Patent GB-426160-A (GB)
Title: Improvements in convertible bed settees
IPC: A47C17/22
Filed: 1934-05-24
Abstract: 426,160. Bed-settees. HUNTER, D., 311, McRoberts Avenue, Toronto, Canada. May 24, 1934, No. 15498. [Class 52 (ii)] In a bed-settee in which the mattress frame comprises four foldable sections 16, 18, 19, 20, the first and second sections are connected by links 22, 25 to the frame, the seat 12 is pivotally connected to the second and fourth sections 18, 20 by links 33, 37, the third section 19 is pivotally connected to one end of a connecting rod 29 which is pivoted at its rear end to the forward link 25, and a collapsable leg 14 is pivoted to the seat and connected by mechanism to the forward link 25 so as to be brought into operative position when the bed is unfolded. The rear end of the first frame section 16 is pivoted to the rear link 22 and the second section 18 is pivoted to the forward link 25, both links being pivoted at their lower ends to a bar 23 secured to the frame of the settee, and being connected by a cross-link 26 which causes a greater angular movement of the link 25 than of the link 22. The link 25 extends beyond the pivot connecting it to the section 18, and to the upper end is pivoted a rod 29 which is pivoted at its forward end to the short third section 19. The folding mechanism for the leg 14 comprises a short link 31 pivoted to the forward link 25, and connected to the section 18 by a link 31<1>. A rod 43 connects the upper end of the leg 14 to the pivot connecting the links 31 and 311.
Patent GB-155514-A (GB)
Title: An improved process for forming conical cups for roller and like bearings
IPC: F16C33/64
Filed: 1919-11-04
Abstract: 155,514. Timken, H. H. Nov. 4. 1919. Bearings; rings.-Conical cups for roller and like bearings are made by stamping a flat blank, accurately finished on both sides, into the shape shown. The bottom is then punched out, the edges trimmed, and the cup hardened. Specification 144,951 is referred to.
Patent GB-291355-A (GB)
Title: Process for the manufacture of a zinc pigment by means of barium hydrate
IPC: C09C1/04
Filed: 1928-05-29
Abstract: 291,355. Deguide, C. May 30, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Pigments.-A pigment is obtained by treating a zinc sulphate solution with barium hydrate whereby barium sulphate and zinc hydrate are precipitated. The precipitate is dried and calcined to obtain a mixture of barium sulphate and zinc oxide.
Patent GB-151353-A (GB)
Title: Improvements in electric plug connecting devices
IPC: H01R13/26
Filed: 1919-06-21
Abstract: 151,353. Blades, R. W. June 21, 1919. Couplings and connectors.-An electric connecting-device of the wall-plug type consists of a movable plug member 3 having one or more projecting flat-surface contacts, and a twopart stationary socket member comprising a base portion 11<x>, in which spring flat-surface contacts are mounted, and an apertured cap or hood 11 fitting on, and secured to, the base portion. The fixed contacts may be of inverted-U shape and engage with conducting-strips on opposite sides of a central non-conducting bar or web on the plug, the web being constructed to extend beyond the strips and to enter a recess in the base portion of the socket. The stationary loop spring contacts may bescrewed by one limb to terminals which extend up and bear against the inner surface of the free limb of the contact. As shown in Figs. 7 and 8, pairs of contacts 10, of combform, pivoted at 13 and supported by springs 14, are adapted to receive a conducting web 1 upon the plug. Or, as shown in Fig. 9, the contacts 10 may be of single flat form, hinged at 13 and supported by a spring 14. The base may be fitted with three pairs of contacts, separated by insulating-walls, such as 15, Figs. 7, 8, and 9, and adapted to be engaged by three webs on the plugs; or a single web of triangular cross-section may be arranged to engage with three single contacts in the base. Instead of the conductors 6 entering at the side of the plug, they may pass centrally down the plug and be led between inclined surfaces on the plug and a strain-taking conical piece inside the plug. Reference has been directed by the Comptroller to Specifications 5676/06 and 23035/13.
Patent GB-607208-A (GB)
Title: Improvements in or relating to frame structure for an ironing machine
IPC: D06F67/00
Filed: 1945-06-20
Abstract: 607,208. Ironing-machines. STEVENS, A. H. (Electric Household Utilities Corporation). June 20, 1945, No. 15693. [Class 138(ii)] [Also in Group XIV] An ironing-machine is pivoted at one end on the forwardly-projecting arm 29 of an upright 25 and is provided at its other end with means co-operating with the upper end of a second upright 26 to lock and support the machine in a horizontal working position. Spring means 40 on the arm 29 partly counterbalances the weight of the machine. To adapt the ironing-machine for use on the stand, the knee lever 15 for controlling the machine is hinged at 16 to a bracket for operation in one direction and to collapse to inoperative position when folded down
Patent GB-354867-A (GB)
Title: Improvements relating to the engine bonnets of motor-vehicles
IPC: B62D25/10
Filed: 1930-05-22
Abstract: 354,867. Bonnets; radiators. RILEY, A., Aldbourne Works, Widdrington Road, Coventry. May 22, 1930, No. 15742. [Class 79 (iii).] The filler-cap for the radiator of a motor vehicle is integral with or carried by the top portion of the bonnet casing so as to be removable therewith. As applied to bonnets comprising a transversely hinged top portion and independent side panels, such as described in Specification 354,424, the fillercap may comprise an integral or attached extension of the top portion 2 of flat formation to engage a packing washer around the top of the filling orifice 4 or it may be dished or flanged to enter the orifice, preferably with a packing washer interposed. In the form shown in Fig. 4, a number of spring tongues 6 are adapted to engage an internal lip 4a. In Fig. 2, a stopper 10 is rotatable in a flanged ring 9 secured to the bonnet top 2, rotation serving to tighten a pair of substantially semicircular spring bands 12 encircling the neck of the orifice 4 below an external flange 11 thereon. For this purpose, one end 13 of each band is attached to a peg carried by the bonnet part 2, whilst the other end 14 is attached to a peg carried by the stopper. In the form shown in Fig. 5, the obturator comprises a rubber &c. ring 15 expanded to grip the orifice when conical discs 16 are pressed together against the action of a spring 18 by rotation of a cam member 19 carried by a mounting spindle 17 attaching the elements to the bonnet top. A mascot 7 may serve as a handle for such purpose. Means provided for securing the bonnet in closed position, as described in Specification 354,424, may serve to clamp the stopper in position. As applied to bonnets comprising parts hinged about a central longitudinal axis, the filling orifice is offset to one side and is preferably on the rear part of the radiator so as to lie under the usual bonnet flap. Symmetry may be preserved by provision of a second filler orifice or a dummy filler-cap on the other side of the central axis.
Patent GB-790695-A (GB)
Title: Method of producing tubular radiators, particularly of aluminium or aluminium alloys
IPC: F28D1/053
Filed: 1955-06-01
Abstract: 790,695. Heat-exchangers. HENNINGER, A. B. June 1, 1955, No. 15760/55. Class 64(3) [Also in Group XXII] In a tubular radiator of aluminium or aluminium alloy, provided with transverse gill plates 41 spaced apart along the tubes 1, the 'plates are disposed at the required spacing by means of a holding device (see Fig. 8), and thereafter, spacing pieces (see Figs. 9 and 10) are inserted into apertures 81 formed in the plates 41 and by turning and/or displacement are anchored to the plates after which the holding device is removed and the tubes are inserted through apertures 21, provided for them in the plates, the unit being finally soldered in a furnace. The spacing pieces (Figs. 9 and 10) are preferably made of aluminium but they may be made of sheet iron in which case they are removed after the soldering operation.
Patent GB-379362-A (GB)
Title: Improvements in electrical systems for internal combustion engines
Filed: 1931-05-29
Abstract: 379,362. Turning-gear; preventing unauthorized starting. ECLIPSE MACHINE CO., Elmira, New York, U.S.A. May 29, 1931, No. 15765. Convention date, May 31, 1930. [Classes 7 (ii) and 7 (v).] In a combined starting and ignition system, operation of a lock-switch 48 closes a control circuit and energizes a solenoid 25, by way of the ignition coil 50 ; the pivoted armature 27 separates contacts 60, 61 and closes contacts 28, 29, whereupon an increased current passes to the solenoid 25 by way of lead 30, closing the main starting switch 20, 21. The starting motor SM is energized, the lead thereto being coiled about a magnetic stud 22<1> and thereby retaining the contacts 32, 33 in contact. The pivoted armature 27 overlaps a second similarly mounted armature 44 and the movement of the former closes contacts 45, 46 completing the circuit of the ignition coil 50 to the interrupter 42. A winding 37 branched from the lead to the starter SM receives more current as the load on the starter decreases and eventually separates the contacts 32, 33. This separation is maintained against the action of a spring 36 when current from the generator G traverses the coil 40. As the engine stops the pivoted member 45 moves away from the fixed polepiece 70 and breaks the ignition circuit at the contacts 45, 46. The interrupter is moreover short-circuited by the engagement of a contact 64 with an earthed contact 65. The casing 53, the sheaths 67, 68 and the casings enclosing the lock-switch 48 and the interrupter 42 are of highly-resistant material for preventing unauthorized use of the apparatus.
Patent GB-118729-A (GB)
Title: Buoyancy Attachment for Vessels.
Inventor: SAUNDERS DANIEL GREEN
IPC: B63B43/12
Filed: 1917-10-30
Abstract: 118,729. Saunders, D. G. Oct. 30, 1917. Sinking, preventing. - A buoyancy-increasing device for ships comprises bags 4 of heavy threaded canvas enclosed in rope nets 5 pivoted to the ship's side near the water-line and adapted to be inflated and hauled down below the normal water-line. The strands 6 of the nets are formed at the lower ends with loops adapted to engage a shaft 3 mounted near the water-line in brackets 2, and at the upper ends with loops 9 adapted to be secured to eyes 10 along the ship's side by a single cable passed through them to a winch on the deck, when the bags are deflated. The bags are inflated from a reservoir 18 through pipes 20 inside the ship flexibly connected to the bags. The bags are drawn below the water-level bv cables 13 passing over pulleys 14 secured to the bottom of the ship and connected to the nets by a series of collars 12.
Patent GB-1187276-A (GB)
Title: Image Correlation Device
IPC: H01J31/28
Filed: 1967-04-06
Abstract: 1,187,276. Optical ranging. INTERNATIONAL STANDARD ELECTRIC CORP. 6 April, 1967 [12 April, 1966], No. 15795/67. Heading H4D. [Also in Divisions G1 and H1] Correlation of two images is indicated by minimum current flow across a single layer of semi-conductive material, or maximum flow across two layers of semi-conductive material separated by an interface which normally prevents the cross-flow of charge carrier, in response to an applied voltage and the incidence of two images on one face or on two opposite faces respectively. In the arrangement of Fig. 1 the single-layer device may comprise a conductive substrate 16, a resistive layer 18, a photoconductor layer 20 and an outer transparent conductive layer 22. Materials for the layers are exemplified. The two-layer device, Fig. 2 (not shown), may comprise different materials such as silicon and germanium having sufficient lattice disturbance at the interface to generate a zone of very short lifetime for carriers. The interface may be formed by silicon or other impurities, and when the layers are of opposite conductivity type materials a reverse bias is applied between two outer transparent conductive coatings to provide a photo-sensitive depletion layer. Doping of the semi-conductor may give a high rise of impurity concentration at both surfaces in order to maintain a constant depletion layer with change of temperature. In the arrangement of Fig. 3 (not shown), the semi-conductor layers comprise oxides of aluminium, selenium or lead and are sensitive to electron bombardment, with thin coatings of aluminium comprising the transparent conductive layer. The arrangement includes photocathodes to convert the light images to electrons in accordance with the intensity distribution and a coil to focus the emitted electrons on to the layers. This symmetrical arrangement is arranged such that the electrons from one image may be shifted by a surrounding coil to obtain correlation. Another arrangement, Fig. 4 (not shown), includes two different semiconductive layers respectively sensitive to light and to electron bombardment. A rangefinder, Fig. 5, is described in which one of two images viewed is movable by a rotatable mirror to produce correlation on the two sides of a two-layer device, and the mirror setting is calibrated to give a direct range reading.
Patent GB-562768-A (GB)
Title: Improvements relating to creels
IPC: D02H1/00
Filed: 1942-11-10
Abstract: 562,768. Creels. BADDELEY, C. H. Nov. 10, 1942, No. 15859. [Classes 120 (ii) and 142 (ii)] [Also in Group XXV] A creel for use instead of a warp beam, or in rope making, &c., comprises longitudinal shafts B, secured to a supporting framework A, upon which are slidably mounted adjustable transverse brackets F which support the bobbins &c. K. The bobbin spindles J may be reduced in diameter at their ends for reception by bearing slots H in the brackets F. When the brackets F have been adjusted for reception of the particular size of bobbins to be used, U-shaped clips M are pressed over the shaft B, adjacent the endmost brackets F, to clamp the whole arrangement in position. Laths D with eyelets E to guide the yarns L are positioned between each tier of bobbins in the creel. Instead of bearing slots H, the brackets F may be mounted permanently upon the shafts B and slidable therealong.