baber/WOPTO huggingface dataset:
Patent GB-1415664-A (GB)
Title: Calibrating devices
IPC: G01N33/00
Filed: 1972-03-07
Abstract: 1415664 Calibrating gas sampling devices DEFENCE SECRETARY OF STATE FOR 6 June 1973 [7 March 1972] 10493/72 Heading G1B A method of calibrating gas sampling apparatus comprises providing a gas-permeable bed containing a solid-phase material capable of emitting a detectable gas at a known rate, passing an eluting gas through the bed to acquire a known concentration of emitted detectable gas and passing the eluting gas containing the known concentration of detectable gas to a gas sampling apparatus capable of detecting the detectable gas whereby the functioning of the gas sampling apparatus may be confirmed or regulated. The solid-phase material may be ammonium carbonate or mercurous oxide, which emit ammonia or mercury vapour respectively, or a gas-sorbing material such as zeolites, alumina, silica gel, rubbers, silicone rubbers and charcoal. The detectable gas may be added to the sorbing material by exposing the material to the gas in a closed container. The detectable gas is preferably a liquid boiling above 25‹C at atmospheric pressure e.g. hydrocarbons, lead or mercury-containing organo-metallic compounds, halogens or halogenated hydrocarbons. The method may be carried out using the apparatus shown in the accompanying Figure. In use, plug 2 is inserted into the gas inlet of a gas sampling apparatus. Air from the surrounding atmosphere is drawn by a pump through hole 3 and into the apparatus. To check the calibration of the apparatus, hole 3 is closed e.g. by an operator's finger, and air is then drawn through bed 7 and into the apparatus. Bed 7 consists of an activated charcoal bed on which is absorbed a detectable gas, e.g. bromobutane. Thus an air-stream containing a known concentration of the detectable gas is generated.
Patent GB-1247316-A (GB)
Title: Rotating-anode x-ray tube
IPC: H01J35/10
Filed: 1970-03-04
Abstract: 1,247,316. Bearings. SIEMENS A.G. 4 March, 1970 [28 March, 1969], No. 10496/70. Heading F2A. [Also in Divisions C7 and H1] The rotating anode of an X-ray tube is mounted on two sets of ball-bearings, the balls in each bearing being retained in a cage formed in two parts, one part 14, Fig. 2, being of hardened metal and the other part 17 being of self-lubricating material. The two parts are preferably joined together as shown by hardened metal straps 16 formed integrally with the part 14. The hard metal may be a nickel beryllium alloy comprising 0À2-2À1% Be, preferably 1À9- 2À1%, with 1% Mn and the balance Ni. Another composition comprises 2% Be, 1À9% Mn and the balance Ni, this alloy being hardened above 500 C. A further composition comprises 2% Be, 26% Ni, 40% Co, 12% Cr, 11% Fe, 4% Mo, 4% W and 1% Ti. The self-lubricating material may be deep drawing iron sheet, silver, or a silver-copper alloy comprising 85-92% Ag, 15-8% Cu, a preferred composition being 92% Ag, 8% Cu.
Patent GB-710312-A (GB)
Title: Artificial harbour
IPC: E02B3/06
Filed: 1952-04-26
Abstract: 710,312. Harbours. NIEDZWIEDZ, B. April 9, 1953 [April 26, 1952], No. 10564/52. Class 68(2) A harbour is provided with wedge-like walls 1 which can be turned so as to point towards the waves whereby the latter are diverted instead of breaking broadside on. In the form shown in Fig. 1 the walls are carried by a hollow structure 3 hinged at 5 to the solid jetty 4. In Fig. 4 the wedgeshaped member 14 can be moved along rails along a semi-circular wall 15, or a completely circular wall having a gate may be used.
Patent GB-1253280-A (GB)
Title: Improvements in the separation of gaseous mixtures
IPC: F25J3/04
Filed: 1969-02-27
Abstract: 1,253,280. Air rectification process. AIR PRODUCTS & CHEMICALS Inc. 27 Feb., 1969 [28 Feb., 1968], No. 10584/69. Heading F4P. In a two-stage compressed air rectification process wherein feed air is forced by a compressor 11 through switched heat exchanger paths 16A, 16B and 17A, 17B in counterflow to cold waste separated gaseous nitrogen and is fed at 18 into the high pressure column 21 from which small amount product liquid nitrogen is withdrawn at 47, whilst liquid oxygen is withdrawn at 46 from the low pressure column 22, the extra cold requirements necessary for an increased production of liquid products is provided by withdrawing gaseous nitrogen at 66 from column 21, passing it through a flow control valve 116 and lines 115, 105, heat exchanger paths 106, 96 and compressors 80, 85 after which a part of the compressed nitrogen is cooled in a heat exchanger path 98 and is then subdivided into a first position 100 which is expanded in a turbine 102 to yield a cold gaseous effluent at least part of which is passed through a line 120, a flow control valve 121, paths 125A, 125B of the main heat exchanger and a line 83 leading to the compressor 80, whilst the remainder of the compressed nitrogen leaving the cold end of heat exchanger 98 is expanded and partly liquefied at a valve 110 and a portion of liquid nitrogen separated at 111 is fed through a valve-controlled line 112 to the column 21 whilst unliquefied nitrogen is withdrawn from separator 111 and passed through a line 115 and added to the remainder of the effluent from turbine 102 which is passed through heat exchanger paths 106, 96 and a line 82 leading to compressor 80. In order to reduce the liquid products and increase the gaseous products, valves 113, 116, 117 are closed thus isolating the nitrogen refrigeration cycle, whereon gaseous nitrogen withdrawn at 66 is passed through a valve-controlled line 68 and is warmed in heat exchanger paths 69, 72 expanded in a turbine 65 and the so-cooled expanded nitrogen together with product gaseous nitrogen withdrawn from an auxiliary column 50 through a line 58 is warmed in heat exchanger paths 59B, 59A and discharged as product gaseous nitrogen at 60. Product gaseous oxygen is withdrawn from column 29 through a line 41 and after being warmed in heat exchanger paths 44B, 44A is discharged at 45. A small amount of liquid oxygen and liquid nitrogen may also be withdrawn through valves 46, 47 in a combined amount of about 2% of the air feed which is equal to a portion of the air feed which is withdrawn from column 21 at 24, liquefied in a heat exchanger path 25 and returned through a line 27 to the column 21.
Patent GB-358412-A (GB)
Title: Improvements in and relating to sphygmomanometers
IPC: A61B5/022
Filed: 1931-04-10
Abstract: 358,412. Sphygmomanometers. FROSSARD. J. J. H., 86, Rue de Varenne, Paris. April 10, 1931, No. 10611. Convention date, April 18, 1930. [Class 81 (ii).] A sphygmomanometer comprises a normally flat inflatable envelope 1, the peripheral edges of which are reinforced by a wire 2, or are vulcanized, so as to be inextensible and to prevent lateral deformation when inflated in use. A manometer 3 is directly attached to the inflatable envelope and an inflating bulb 4 with non-return valve 5 is provided. The envelope is enclosed in a fabric casing 6 with straps 7 for attachment to the limb of the. patient.
Patent GB-283029-A (GB)
Title: Improvements in and relating to traffic signals
IPC: G08G1/095
Filed: 1927-04-20
Abstract: 283,029. Jackson, L. Mellersh-, (Crouse-Hinds Co.). April 20, 1927. Signal lamps. -A signal lamp comprises an electric lamp bulb 2 controlled bv a suitable switch and arranged in a housing 1 between a parabolic or other concave reflector 3 and a lens 4 having a reticulated surface to refract the light laterally in all directions at wide angles. The lens may be coloured green, red or amber &c., or the colour may be imparted by a plain coloured screen between the lamp and lens. Visors 10 carried by a ring 11 are provided to prevent direct rays of sunlight passing through the lens.
Patent GB-1143901-A (GB)
Title: Mounting device for a cathode ray tube deflection yoke
Inventor: OELER RICHARD CHARLES
IPC: H01J29/70
Filed: 1967-03-07
Abstract: 1,143,901. Cathode-ray tubes. MOTOROLA Inc. 7 March, 1967 [9 March, 1966; 19 Jan., 1967], No. 10679/67. Heading H1D. [Also in Division E2] A deflection yoke is mounted on the neck of a cathode-ray tube by a support frame which slidably and rotatably receives the yoke, and which includes a plurality of fingers extending at angle equal to the taper of the cone of the tube and mounted thereto by a cushioned adhesive material secured to the fingers, and a clamping device, whereby rotation and sliding of the yoke with respect to the frame may be prevented. The annular portion 16 of the yoke 12 of a shadow mask colour tube 10 is received within the ring 14, which is secured to the cone 15 by spongy double-sided adhesive tape 26 on the under-surface of the fingers 18. The yoke is then rotated and moved axially within the ring 14 to provide the desired location of the centre of deflection, whereafter the ring is tightened by clamp 35 positioned at a break in the ring, to maintain the yoke in position, and the yoke clamp 48 is also tightened. Several forms of clamp for tightening the ring are described (see Division E2). In a modified arrangement (Figs. 5 to 10, not shown), the fingers are shortened and bifurcated, and inwardly directed protuberances are formed in the ring 14 to limit the range of axial movement of the yoke therein before the ring is finally tightened.
Patent GB-569422-A (GB)
Title: Compositions and methods for producing sound metal castings
IPC: B22D27/06
Filed: 1943-07-01
Abstract: 569,422. Casting processes. UDY, M. J. July 1, 1943, No. 10715. Convention date, July 9, 1942. [Class 83 (i)] [Also in Group II] Piping &c. is prevented by covering the surfaces of the molten metal in the mould, risers, &c. with layers of hot slag, preferably produced by placing in the mould, before pouring, an exothermic reaction mixture, e.g. one containing ferric oxide or magnetite, oxidizing material, and silicon or aluminium, or both, or an alloy thereof, such as ferrosilicon. A suitable mixture contains sodium nitrate 25 parts, ferrosilicon 25, and magnetite 70.
Patent GB-182586-A (GB)
Title: Improvements in chronometric electric switches and like control devices
IPC: G04C13/04
Filed: 1921-04-13
Abstract: 182,586. Stewart, C. J., Stainer, W. W., and Burn, L. April 13, 1921. Electric clocks; winding-apparatus, electric.- The speed of electric motors employed for driving impulse-transmitters, recording-apparatus, or other mechanism, is maintained proportional to the speed of a standard clock by means of a field rheostat or other regulating device actuated differentially by the clock spindle and by gearing from the motor spindle, which also keeps the clock wound up. In one construction, shown diagrammatically in Fig. 3, a rheostat arm 14 driven by a clock spindle 11 makes contact with a continuous resistance element 19 driven by a spindle 16 geared to the motor 17. Variation of the motor speed moves the rheostat arm along the resistance so as to effect a compensating variation in the strength of the motor field 43. The spindle 16 is attached to the clockwork main spring 12 so as to keep it wound up. The motor is arranged to drive an impulse-transmitter switch 22 which may control electric clocks.
Patent GB-573184-A (GB)
Title: Improvements in and relating to steam-heated, laundry ironing machines or presses
IPC: D06F67/08
Filed: 1943-07-02
Abstract: 573,184. Ironing and pressing machines. NEWBERY, S. July 2, 1943, No. 10800. [Class 138 (ii)] In order to avoid the expense and difficulties usual with castings the bed of an ironing, calendering, or pressing machine is made with a front or ironing surface of a plate 1 of cast or pressed steel or alloy of the same thickness throughout backed by a steam-heating pipe or pipes 4 separated from but touching the rear surface of the plate, a heat-conducting packing 6 in contact with both and a cover 2 spaced from and enclosing them, with or without heat insulating material between the pipes and the cover. The surface of the plate 1 is machined and polished, the cover 2 being of any suitable metal or insulating material and secured detachably or otherwise to the edges of the plate. The pipe or pipes is or are arranged in zig-zag or circuitous form to distribute the heat and may be of a section to give maximum contact area with the rear surface of the plate. The sections of a multi-roll ironer may be independent or, as shown in Fig. 3, formed in a continuous element. the plate being welded to intersecting ribs 11 forming a support. The pipes may be secured by clips or other fixing devices to the plate 1 and the interstices may be filled with metal wool, granules or the like of suitable heat conducting value. Instead of a convoluted pipe, a grid formed of longitudinal headers provided with transverse pipes connecting them grid-wise may be used. At the rear of the pipes is a heat insulating or other suitable sheet 5 between which and the cover may be air or lightly packed heat insulating material.
Patent GB-383541-A (GB)
Title: Improvements in and relating to expansion chambers for fluid filled apparatus
IPC: H01F27/14
Filed: 1932-04-15
Abstract: 383,541. Pressure-relieving devices. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) April 15, 1932, No. 10865. Convention date, April 15, 1931. [Class 135.] An expansion chamber for use with liquid filled apparatus, such as oil - impregnated cables, or oil immersed transformers consists of a series of juxtaposed cells a, b having flexible separating portions c formed of non-metallic plastically or elastically yielding material. Alternate cells are in communication with the liquid and a gaseous medium and the movement of the partitions caused by the withdrawal of liquid on contraction is limited by rigid perforated walls. Leather, rubber or synthetic materials may be used for the partition. If rubber is used it is either of a type resistant to oil and heat or is coated with an oil-proof material. The material known under the Registered Trade Mark " Plexigum " may be used. The Specification, as open to inspection under Sect. 91 comprises also modifications in which a single flexible partition protected by a perforated guard serves to separate the liquid from the gaseous medium. This subject-matter does not appear in the Specification as accepted.
Patent GB-984673-A (GB)
Title: Improvements in or relating to electron discharge devices having charge storage targets
Inventor: RANDALL ROBERT PAUL
IPC: H01J29/02
Filed: 1960-03-28
Abstract: 984,673. Television pick-up tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. March 28, 1961 [March 28, 1960; March 2, 1961], Nos. 10869/60 and 7639/61. Heading H1D. In an electron discharge tube such as a vidicon or image orthicon television pick-up tube having a mesh electrode stretched upon a circular supporting ring and mounted in close proximity to a charge storage target, vibration of the mesh is reduced by means of an apertured circular damping member held in contact with the mesh but not otherwise fixed to it. The member may be disposed on the side of the mesh remote from the target or sandwiched between the mesh and the target and not fixed to either. In the target assembly of an image orthicon shown, the mesh 2 is supported by a retaining ring 2a upon a supporting ring 1. The vibration damping member 3 may have a small lip around its periphery which fits over the rounded contour of the mesh where it passes over the rounded shoulder of the ring 1. The mesh 2, member 3 and target 4 are clamped together by four clamps each composed of two parts 6, 7 and a rivet 8. The member 3 which has a rectangular aperture may consist of aluminium foil or of plastic, mica or glass. In a vidicon target assembly the member 3 may consist of magnetic or non-magnetic material, e.g. mild steel or nickel chromium alloy. The mesh electrode may function as an ion trap, a field mesh or an electron collector. Specification 984,674 is referred to.
Patent GB-597244-A (GB)
Title: Improvements in and relating to gate valves
IPC: F16K31/05
Filed: 1945-04-30
Abstract: 597,244. Electrically-actuated valves. GREENAWALT, J. K April 30, 1945, No. 10899. [Class 135] A gate valve (i, suitable for controlling the flow of gases through a sintering plant, is actuated in both directions by an electric motor which drives a pinion 15 engaging a rack 10 carried by the valve, and means is provided to stop the drive to the pinion when the valve reaches either of its extreme positions. The rack is constituted by teeth on the undersurface of a carrier secured to the actuating stem 9 of the valve, the carrier also being provided with wheels 11 running in guides consisting of inwardly-directed channel sections 12. The drive from the motor to the pinion is through a magnetic brake, a reduction gear, and a flexible coupling. The carrier has an upstanding plate 21 with a lateral pin which, in the end positions attained by the valve, coacts with C-shaped pivoted operating members of switches to stop the motor. A manual control panel with a stop and two start buttons is provided as well as two indicator lamps to show in which direction the valve is travelling.
Patent GB-109467-A (GB)
IPC: D03D49/24
Abstract: 109,467. Smith, R. H. Sept. 8, 1916. Picking-motions; shuttle boxes. - In overpick picking-motions, in order to keep the picking-strap 7 always in a state of tension throughout the movement of the lay, the picking-shaft 9 of the vertical type is inclined to vertical planes taken longitudinally and transversely of the loom. The swell levers 2 are arranged at the front of the shuttle boxes, the pickers 4 and their spindles 5 and guide-bars 6 being at the rear of the boxes.
Patent GB-1490828-A (GB)
Title: Processing semiconductor devices
IPC: G03D5/04
Filed: 1976-03-18
Abstract: 1490828 Etching INTERNATIONAL BUSINESS MACHINES CORP 18 March 1976 [28 April 1975] 10949/76 Heading B6J [Also in Division G2] A semi-conductor wafer is etched while stationary and horizontal by metering sufficient etchant to form a miniscus-contained body of etchant over the whole upper surface of the wafer, detecting completion of the etching, and spinning the wafer to remove the etchant rapidly therefrom. The process can be used also to develop a photoresist mark before etching, and to strip the remaining resist after etching. The wafer support comprises three pegs 126 extending upwardly from a Y-shaped centrifugal chuck 12 supported on a shaft 11 for rotation by an air motor 13 and carrying three pivoted centrifugal arms which engage the edge of a wafer 18 when stationary and move clear of the edge when rotating. There is provided a set 15a of nozzles, namely, nozzles 51d for rinsing water, 42d for developer liquid, 46d for etchant, and 62d for resist stripper liquid, mounted on a block 72 slidable in a cylinder 70 by means of springs 71 and air pressure applied to a piston rod 73 so as to bring the nozzles over the wafer or to a non-operative position to the right thereof. The nozzles are also connected by a bracket 34 which also supports an end-ofetching detector 35 comprising a laser source 26, a photo-electric cell 27 and optical fibre members 31, 32. Metered quantities of fluids are delivered to the nozzles, the shaft 11 is rotated, and the nozzles are moved under the control of a programmable controller 36, which receives signals from the photoelectric cell 27. In a complete developing, etching and stripping process, a wafer covered with a layer of photo-resist which has been selectively hardened by exposure to light but not developed, is placed on the chuck, the nozzles are moved over the wafer, and sufficient developer is supplied to form a meniscus-contained body 19. After development, the nozzles are again moved over the wafer and deionized water supplied to rinse away the loose resist, the chuck is rotated to spin off the remaining resist and spray, and a baking element 22 is actuated to dry the assembly. After stopping the rotation, buffered HF etchant is similarly supplied, and on detection of completion of etching, the chuck is immediately rotated while rinse liquid is supplied, to remove all traces of etchant. The process is repeated with a stripping liquid such as hot sulphuric acid to remove the remaining photo-resist, followed again by rinsing and drying. The water is removed and may have a further layer required to be etched formed on it, and the entire process repeated. The layer to be etched may be silicon dioxide, polycrystalline silicon, silicon nitride, aluminium or sputtered quartz, supported on a silicon substrate.
Patent GB-1425464-A (GB)
Title: Heat exchange apparatus
IPC: B01D45/16
Filed: 1972-03-09
Abstract: 1425464 Centrifugal air cleaners MASSEYFERGUSON SERVICES NV 14 Feb 1973 [9 March 1972] 10998/72 Heading B2P [Also in Division F4] An air cleaner 10, Fig. 1, e.g. for removing foreign matter from the air passing through the radiator 12 of an i.e. engine of a combine harvester, comprises a duct 14 having a curved wall, a fan 16 to cause air flow through the duct, vanes 18 mounted in the duct to impart a helical motion to the air flowing through the duct, and an opening 22 in the wall of the duct downstream of the vanes to allow escape of centrifugally separated foreign matter from the duct. The vanes, in the form of flat plates inclined to the duct axis, are mounted in a cylindrical portion 20 of the duct between the wall thereof and a perforated metal hollow cylindrical screen 28 which is dosed at its end corresponding to the inlet end of the duct by an imperforate metal disc 30 and is open at its other end corresponding to the downstream end 25 of the frusto-conical portion 24 of the duct which is sealed to the radiator 12. The clean air passes through the perforations in the screen 28 and the core of the radiator to effect cooling of the water therein. The screen 28 may be provided with an imperforate annular band at the inlet end of the cleaner to reduce the chance of air passing through the screen before being acted upon by the vanes. In Fig. 7, the air cleaner 46 is sibown mounted on a combine harvester with its axis, at its inlet end, extending vertically. The fan 50 located in the duct is belt-driven from the combine's engine 54. The clean air passes directly out of the engine compartment 68 from the radiator 52 in a direction away from the operator of the combine. The foreign matter outlet opening is shown provided with a guiding chute 26. In another embodiment, Fig. 5 (not shown), the air cleaner is mounted on the combine with its axis horizontal and the fan is driven directly by the engine. The engine compartment is pressurized by the air cleaner with clean air which also passes through apertures and enters the operator's cabin for controls.
Patent GB-917292-A (GB)
Title: Improvements in resilient rail pads
Inventor: DAY RICHARD JOHN
IPC: E01B9/68
Filed: 1960-03-29
Abstract: 917,292. Rail pads. SPENCER, MOULTON & CO. Ltd., GEORGE. March 29, 1961 [March 29, 1960], No. 11056/60. Addition to 860, 209. Class 104 (2). In a rail pad of resilient material with grooves of trough-like cross-section, each groove being radiused between the side wall and the base as in the parent Specification, edge abrasion is reduced by arranging narrow lands between the outermost grooves and the edges of the pad and wider lands in the centre of the pad. The grooves which are parallel to one another, may be straight or sinuous. The grooves 2 on one surface of the pad may be staggered in relation to those 1 on the opposite face, as shown in Fig. 2. The grooves may be wider than they are deep.