baber/WOPTO huggingface dataset:
Patent GB-811625-A (GB)
Title: Improvements in or relating to methods of manufacturing a colour t.v. receiver tube
Inventor: MANNERS JOHN HUGH RUTLAND
IPC: H01J9/227
Filed: 1957-11-08
Abstract: 811,625. Luminescent screens. STANDARD TELEPHONES & CABLES Ltd. Nov. 8, 1957, No. 34888/57. Drawings to Specification. Class 39(1). In the production of a colour television receiving screen having a series of grooves containing different phosphor materials, the grooves of one series are formed and filled with their phosphor before the grooves of the next series are formed. The grooves may be formed by cutting or etching and surplus phosphor material is removed at each step. Indexing material may be deposited in one series of grooves as a step in the process. The screen may be lacquered and coated with an aluminium layer and scraped so that the lacquer and aluminium only be over the materials in the groove. Specifications 800,641 is referred to.
Patent GB-1363555-A (GB)
Title: Press with semi-automatic cycle
IPC: B30B7/04
Filed: 1972-07-26
Abstract: 1363555 Pressing meat CHEMETRON CORP 26 July 1972 [26 July 1971] 34926/72 Heading A2U [Also in Division B5] In a press of the type comprising a plurality of platens arranged for relative movement in orthogonal directions, and suitable for pressing sides of bacon, means is provided whereby, after a predetermined stage of the pressing cycle has been reached, an operator may release the controls that initiate the cycle and the cycle will be completed automatically. As shown, the press comprises platens 14, 16, 18, 20, 22, 24 of which the platens 16, 20, 22 are hydraulically operated and the platen 24 is arranged to be lowered and raised hydraulically to facilitate loading An electric motor 32 driving a hydraulic pump may be started and stopped by momentary operation of switches 52, 50, closure of the switch 52 energising a coil 56 which closes contacts 60, 62 and contacts 54 across the terminals of the switch 52. Overheating of the hydraulic fluid operates a temperature responsive switch 64 to energise a coil 66 which operates contacts 70 to start up a cooling fan motor 34. Overload circuitbreakers 58, 68 are provided. After starting, by the switch 52, the apparatus is set for operation by the closing of gauged switches 200, 202, whereupon a spaced pair of levers 82 at the front of the apparatus may be operated to close gauged switches 80, 86 which energise a coil 218 and solenoids 84, 88. The coil 218 operates to close contacts 216, the solenoid 88 closes a dump valve to allow pressure to be effective in the system, and the solenoid 84 operates a valve which, through a system of pressure responsive valves in a hydraulic circuit (not shown), controls the sequential operation of jacks actuating the platens. In this sequence, the platen 24 is first raised and the platen 16 is then lowered. The other platens are then operated automatically in sequence, the hydraulic circuit including means for limiting the force applied by each movable platen. As the platen 16 starts to move it closes a switch 90, and when it reaches a predetermined position it closes gauged switches 206, 212 so that the cycle will be completed whether or not the switches 80, 86 are held closed by the levers 82. When the hydraulic pressure in the jack of the last platen to be operated, viz the platen 20, reaches a predetermined value, a normally closed pressure sensitive switch 156 is opened to de-energise the coil 224 of a time delay relay which, after a delay of e.g. 0.2 to 0.5 second, opens a switch 214 to terminate the cycle.
Patent GB-521884-A (GB)
Title: Improvements in or relating to the manufacture of cellulose esters
IPC: C08B3/02
Filed: 1938-11-30
Abstract: 521,884. Cellulose esters. I.G. FARBENINDUSTRIE AKT.-GES. Nov. 30, 1938, No. 34943. Convention date, Dec. 1, 1937. [Class 2 (ii)] Cellulose esters of high clarity are prepared by incorporating perchloric acid with cellulose ester solutions, prepared in the presence of sulphuric acid, shortly before esterification is complete ; alternatively, after esterification is complete, hydrolysis of such esters is carried out in the presence of perchloric acid. The two methods may be combined, for example, by adding a portion of the perchloric acid to the esterification solution shortly before esterification is complete, and a further portion before hydrolysis begins. In an example, cellulose is acetylated with a reaction mixture containing acetic anhydride, methylene chloride and sulphuric acid. After adding water to destroy excess of acetic anhydride, hydrolysis is effected by adding aqueous perchloric acid. In another example, cotton linters, pretreated with acetic acid, are acetylated in a mixture comprising acetic anhydride, methylene chloride and sulphuric acid, and shortly before esterification is complete, perchloric acid is added. The solution may be worked up, if desired after hydrolysis. In a further example, cotton linters, pretreated with acetic acid, are esterified with a mixture consisting of ethylene chloride, acetic anhydride, butyric acid and sulphuric acid. During the reaction perchloric acid is added and the esterification completed. The product may be worked up directly or hydrolyzed after addition of more perchloric acid. Specifications 337,366, [Class 2 (ii)], and 403,554 are referred to.
Patent GB-909323-A (GB)
Title: Method and mould for producing semiconductor components
IPC: H01L21/24
Filed: 1960-10-13
Abstract: 909,323. Semi-conductor devices. TRANSISTOR A.G. Oct. 13, 1960 [Oct. 13, 1959], No. 35137/60. Class 37. A semi-conductor device is produced by placing a semi-conductor body in a forming mould, placing an electrode in surface contact with the body, applying and compacting powder against the electrode to hold it against the body, and subjecting body and electrode to heat treatment whereby the electrode becomes fixed in the surface of the body. The invention is applicable to the production of junction transistors and diodes, and light-sensitive devices. As shown, Fig. 4, a forming unit comprises a plate 16 of graphite, stainless steel, alumina, &c., having in one surface recesses which receive semi-conductor elements 1, and a plate 15 of similar material to that of plate 16 comprising bores which, when the plates are secured together by bolts (not shown), register concentrically with the semi-conductor elements and receive electrodes 2 which are held against the elements by heat-resistant powder 12 such as graphite, quartz powder, or ground porcelain, which is inserted into the flared openings of the bores and compacted. Fig. 3 shows one section of a transistor forming unit comprising plate 6, having a recess for a germanium disc 1, and a bore concentric therewith in which a collector electrode 3 of indium is secured by compacted powder 12. An indium emitter electrode 2 is similarly secured in the plate 5, and the assembly is heated at a rate of 100‹ C./min. to 500‹ C., at which temperature it is retained for 10 minutes, after which it is cooled at 20‹ C./min. to room temperature. In Fig. 5, the semi-conductor receiving recess 28 is provided with a further annular recess 29 in which a base electrode is inserted before the semi-conductor element is placed in position. Alternatively, the base electrode may be applied to the edge of the semi-conductor body as an outer ring. Specification 827,762 is referred to.
Patent GB-1313784-A (GB)
Title: Gasket arrangements
IPC: F16J15/447
Filed: 1970-07-21
Abstract: 1313784 Jount-making packing MASCHINENFABRIK AUGSBURG - NURNBERG AG 21 July 1970 [1 Aug 1969] 35153/70 Heading F2B A self-centering gasket is arranged in cooperating grooves 4, 5 in confronting members 2, 3, such as in cylinder head or pipe joints, and comprises in cross-section a central part 1 and webs 6, each web having a terminal portion of diverging form so as to provide a pair of spaced apart tapered lips 7, 8 for dividing the chamber formed by the grooves into two or more opposed compartments. The gasket may be made of steel and the co-operating grooves in the members 2, 3 may be triangular, rectangular with chamfered edges or semicircular as shown.
Patent GB-1138386-A (GB)
Title: Roller conveyors
Inventor: SUMMERS JAMES GILBERT
IPC: B65G47/244
Filed: 1966-08-05
Abstract: 1,138,386. Roller conveyers. IMPERIAL CHEMICAL INDUSTRIES Ltd. 21 Aug., 1967 [5 Aug., 1966], No. 35220/66. Heading B8A. A package 3 is turned as it is conveyed by driven tapered rollers 1. To turn an article in a series of stages, series of tapered and untapered rollers may be disposed in succession. The axes of the rollers are tilted so that the conveying surface of the conveyer has no lateral inclination. By tilting the conveyer downhill articles may be conveyed by gravity.
Patent GB-1438558-A (GB)
Title: Method and apparatus for shaping components made of concrete or mortar
IPC: B28B1/00
Filed: 1973-07-24
Abstract: 1438558 Moulding concrete SOC ANON COIGNET 24 July 1973 [26 July 1972 17 Aug 1972] 35260/73 Heading B5A A method of making elements of mortar or concrete comprises freezing the mortar or concrete in a mould before the start of setting and subsequently removing the frozen mortar or concrete from the mould. In Fig. 1 an endless belt 3 within a refrigerated chamber 1 is supplied with concrete or mortar from a hopper 8 and the material level is adjusted by a vibrated bar 9. The material freezes during its travel and is fed to a further conveyer, not shown. Before freezing, the material may be cut into strips on the belt by rotary discs spaced along a driven shaft. The belt may have an appropriate profile depending on the desired article shape or the material may pass between shaping means before it freezes. Metal reinforcements, which may be stressed, may be positioned in the material. The endless belt or chain 3, Fig. 8, may carry moulds 17 in which the material is compacted by a vibrated rod; each mould has a base 18 moved by a finger 19 engaging a cam 20 whereby the frozen article is ejected.
Patent GB-1530249-A (GB)
Title: Keyboard with slide switches located side by side
IPC: H01H13/74
Filed: 1977-08-23
Abstract: 1530249 Mechanical switches INTERNATIONAL STANDARD ELECTRIC CORP 23 Aug 1977 [28 Aug 1976] 35269/77 Heading H1N In an electric switch keyboard having slidable keys 10, Fig. 1, mounted in a common support bar 11 and latched by a common slider 12, an additional switch is actuated on each operation of the slider 12 and comprises a contact spring 20 flexibly mounted intermediately of its length at a fixed terminal 21 for engagement by the slider 12 at one end and engageable with a fixed contact 22 at its other end. The blade 20 may be of generally U-shape with a short arm 25 attached to the fixed terminal 21 and one or more longer arms 26, 29 carrying contacts. A method of making all the contacts and terminals from a single piece of sheet metal which is bent up and subsequently severed as described. The switch is used for noise suppression by shortening an amplifier input during switching.
Patent GB-434457-A (GB)
Title: Method of and apparatus for conditioning gases and vapours
IPC: B01D46/24
Filed: 1934-12-08
Abstract: 434,457. Steam separators. FAIRWEATHER, H. G. C., 65, Chancery Lane, London.-(Babcock & Wilcox Co. ; 85, Liberty Street, New York, U.S.A.) Dec. 8, 1934, No. 35377. [Claas 123 (iii)] [See also Group XII] Gas is passed into contact with a number of perforate ring or wall-like masses presenting progressively decreasing flow areas to the gas, films of liquid being formed on the solid surfaces of the masses and flowing down to the lower level of each mass whence accretions of liquid are removed. The separation of moisture from high pressure wet steam is referred to. The apparatus comprises two units in series each having a number of ring sections 19 of granular or fibrous material held between wire mesh or perforated plates extending between ring plates 24, the sections successively decreasing in diameter in the direction of gas flow. Wet steam may be conditioned in the first unit by water supplied to each ring section by pipes 26 connected to a manifold 25, excess water flowing from section to section through openings 23<b> in ring-retaining flanges 23, Figure 3a. In the second unit additional liquid is not supplied and drain pipes 31 lead from each section into a collecting space at the base and the dried steam issues through an upper pipe 17. In a modification of the first unit the gas flows upwards and conditioning liquid is supplied to the least and uppermost ring sections only, pipes delivering excess from the bottom of each section to the bottom of the subjacent section whence the liquid passes through flange openings into the next lower section.
Patent GB-1510555-A (GB)
Title: Physiotherapy devices
IPC: A63B23/00
Filed: 1976-08-20
Abstract: 1510555 Physiotherapy device F BERA 20 Aug 1976 [28 Aug 1975] 35491/75 Heading A6M A physiotherapy device comprises a rigid frame 6 on which is mounted a seat 7 and a manually operable wheel 1 mounted on a rotary shaft 13 which is biassed against rotation out of a neutral position in either rotary direction by biassing means 17. The device may also include other manually and/or pedally operable devices e.g. gear lever 2, hand brake 5, brake and clutch pedals 3, 4 which are also biassed e.g. by spring means to a neutral position. The degree of bias may be adjustable in all instances. The seat may also be adjustable in position and the frame may have wheels 8, 9 for moving it around, stop means being provided to resist movement when it is an its desired location.
Patent GB-1503389-A (GB)
Title: Mechanism for converting rotary motion into reciprocatory motion
IPC: F16C3/28
Filed: 1975-08-28
Abstract: 1503389 Adjustable throw cranks NIKKISO CO Ltd 28 Aug 1975 [7 April 1975] 35500/75 Heading F2K A stroke-length adjusting crankshaft 10 (Z-crankshaft as shown) of an adjustablestroke crank mechanism 12-16 for converting rotary motion of a sleeve shaft 32 into reciprocating motion of a pump plunger 22 is formed as a differential, i.e. compound piston of a follow-up oil pressure servomotor control system in which oil pressure supplied via a pump 112 (120-122, Fig. 5) and duct 34 to a small piston chamber A is regulated via an adjustable screwed valve 40 and communicating duct 36 to a large piston chamber B having a fixed discharge opening 42, the arrangement being such that on axial adjustment of the screwed valve 40 the crankshaft 10, acting as a differential piston, automatically moves in a follow-up action to maintain the differential pressure balance between the two chambers A and B and thus retain its axially spaced relationship relative the needle valve 40 whereby axial adjustment of the stroke-length adjusting crankshaft 10 is effected by its follow-up action simply by axially adjusting the needle valve 40. As shown the crankshaft 10 is a Z-type crankshaft which is rotatably driven by a worm 46 which meshes a wormwheel 44 formed on the sleeve shaft 32, the Z-crankshaft 10 reciprocating a connecting rod 20 via an inclined eccentric bore sleeve member 18, the screwed valve 40 being manually adjusted by a knob 116 which is integral with the valve 40 and constitutes a gauge for readily indicating the axial setting of the screwed valve 40 and hence the stroke-length adjustment setting of the Z-crankshaft 10. The arrangement may be housed in an oil filled casing 50 from which the pump 120-122 (Fig. 5), driven from an eccentric 118 on the sleeve shaft 32, supplies pressurized oil, via an accumulator 126, to the chamber A and hence to chamber B and additionally via various bleed ducts, e.g. 114, supplies lubricating oil to parts (chamber 28) of the mechanism operating above the level of the oil in the casing 50. Various other variable-throw crank arrangements are illustrated in Figs. 2 to 4 in which in each ease the variable-throw crank member is adjustably positioned by a follow-up servomotor control system as described above.
Patent GB-1323730-A (GB)
Title: Electrical filtering
IPC: H03H19/00
Filed: 1970-07-22
Abstract: 1323730 Active filters UFAD CORP 22 July 1970 [1 Aug 1969] 35626/70 Heading H3U A filter comprising a frequency changer M1, a lowpass filter LPF 1  and a second frequency changer M2 is provided with a feedback path 12. The frequency changers are fed with the same reference frequency from source 11 and in order to ensure accurate filtering when the input at 10 is the same frequency as the reference signal, a second channel M 3 , LPF 2 , M 4  is connected in parallel and fed with a quadrature reference signal. A band pass characteristic may be obtained at 15 and a bandstop at 18. If the reference is made D.C., lowpass and high pass characteristics may be obtained at these two points respectively. A number of filters of the type shown may be connected to the same source in parallel, Fig. 2 (not shown).
Patent GB-467905-A (GB)
Title: Improvements in textile fabrics
IPC: D03D1/00
Filed: 1935-12-24
Abstract: 467,905. Compound fabrics. EATON, F. Dec. 24, 1935, Nos. 35646 /35 and 5112/36. [Class 140] [Also in Group IX] A stiffened fabric for collars, cuffs, shirt fronts &c. comprises two or more plies interwoven together by warp or weft threads, some or all of which or of the filling yarns intermediate the plies are formed of or coated or impregnated with a thermoplastic material composed of a cellulose derivative which mav be cellulose acetate or other cellulose ethers or esters, or a blend of polyvinyl resins, such as the mixture of polyvinyl acetate and the interpolymer of vinyl chloride and vinyl acetate referred to in Specification 451,998. Heat and pressure are applied to the woven fabric to fuse the thermoplastic material and spread it throughout the fabric to stiffen this. A solvent such as acetone may be used to assist in the dispersion and of the thermoplastic material. The thermoplastic threads may be omitted at parts where the fold lines of semi-stiff collars are to be formed. Specifications 419,208 ; 458,081, [Group IX], 460,232, and 460,523 also are referred to. According to the first Provisional Specification with collars having semi-stiff tops and separate soft bands, certain parts of the former are not processed.
Patent GB-1075766-A (GB)
Title: Composite high-bulk elastic yarns and process for producing the same
IPC: D02G1/18
Filed: 1964-09-01
Abstract: Composite high-bulk elastic yarns are made by simultaneously extruding spinning solutions or melts of an elastic polymer and of a non-elastic polymer through at least one spinneret into a coagulating or quenching medium, the ratio of the weight of elastic polymer extruded to the weight of non-elastic polymer extruded being 1-99 to 60-40, stretching the resultant coagulated blended fibre bundles, in which the elastic fibres and the non-elastic fibres are substantially separated, and feeding the bundles to a false-twisting apparatus or to a spinning frame with stretch-breaking mechanism under pre-tension of less than 0.2 g/den., thereby converting the bundles into yarns. In various embodiments elastic and non-elastic polymers may be extruded from different orifices of the same spinneret or from each orifice of different spinnerets, or both elastic and non-elastic polymers may be extruded from each orifice of a spinneret or both may be extruded from some of the orifices of a spinneret while from the remainder of the orifices one or other of the polymers is extruded. Specified elastic polymers are polyurethanes and block copolymers having alternate crystalline and amorphous segments. Specified non-elastic polymers are polyamides, polyolefines, polyvinyl alcohol and acrylonitrile polymers or copolymers.  The extruded filament bundles are generally stretched 2-7 times.  In one embodiment, the stretched filaments are then subjected to twist-heat-set-untwist on a false-twisting machine, the twist angle being preferably not more than 30 DEG , the heat-setting temperature being preferably not more than 220 DEG C.  In further embodiments the stretched filaments are subjected to stretch-breaking by drafting at a ratio of 1.2-4.5 times on a spinning frame having either 2 or 3 sets of rollers.  The yarns of the invention consist of crimped or broken non-elastic filaments twisted firmly and uniformly among and around elastic filaments located in the central part of the yarn.  Examples describe the wet-spinning of polyurethane and acrylonitrile vinyl acetate copolymer, and the melt-spinning of (1) polyurethane and polypropylene; (2) polyurethane and polycaproamide; and (3) polyurethane and polyethylene hydroxybenzoate.
Patent GB-1537127-A (GB)
Title: Torque-limiting coupling
IPC: F16D43/206
Filed: 1976-08-27
Abstract: 1537127 Positive clutches JEAN WALTERSCHELD GmbH 27 Aug 1976 [11 Sept 1975] 35702/76 Heading F2C In an overload release clutch wherein an intermediate member 4 is normally held in toothed engagement 14 with a driven clutch element 3 by spring pressed balls 7 carried by a driving element 6 engaging part spherical seats 19 in the intermediate member, the balls 7 ride out of the seats 19 on overload and move into deeper circumferential recesses 20 to permit a spring 15 to move the intermediate member 4 axially and thus disengage the teeth 14 from the driven clutch element 3. Spring pressed plungers 11 carried by the driving element 6 normally engage the ends of cam projections 25 on the intermediate member to prevent clutch disengagement during overrun or reverse rotation of the driving element. To reset the clutch either the intermediate member 4 is rotated reversely or the driving element 6 rotated forwardly whilst the intermediate member 4 is held whereupon the plungers 11 ride up cams 22 to urge the intermediate member 4 into toothed engagement with the clutch element 3 and simultaneously the balls 7 ride up cams into the seat 19 to hold the clutch engaged. Radial bores may be provided in the intermediate member to facilitate resetting.
Patent GB-741799-A (GB)
Title: Improvements in or relating to machines for the skinning of fish fillets
IPC: A22C25/17
Filed: 1953-12-23
Abstract: 741,799. Skinning fish fillets. ANDREASSEN, N. Dec. 23, 1953, No. 35742/53. Class 28(2). The skin is cut off a fish fillet 21 in a fixed tray 12 by knife 11 which is automatically adjusted in accordance with the varying skin thickness as it passes down between the fluted rollers 3, 9 one of which moves in or out from the other against the pressure of a spring 19. When the rollers 3 and 9 grip the first part of the fillet they tilt slightly by reaction about the shaft 2 as in Fig. 2 whereby bearing block 8 moves down in relation to a fixed slot 14. Thereby the pivot 10 on the block 8 pulls the knife 11 down in contact with the fish since the end arm 15 is held up in the slot 14. The tilting movement includes the blocks 4 and 8 which are mounted on an underbar 5 pivoting about 2 between adjustable stops 16, 17. The sliding of the roller 3 to or from roller 9 is permitted by slots 7 in the bar 5 whereby the screws 6 securing the bearing block 4 on the bar 5 may slide thereon. A spring 18 pulls the bar 5 and its associated mountings back to position after the fillet has been skinned.
Patent GB-633087-A (GB)
Title: Improvements in or relating to pneumatic couplings
IPC: F16D3/80
Filed: 1946-12-03
Abstract: 633,087. Pneumatic couplings. TYSE, T. Dec. 3, 1946, No. 35763. Convention date, Dec. 16,1944. [Class 8(ii)] A pneumatic coupling comprises two or more coaxial cylindrical casings 3, 7, 8, each containing a radial partition 4, 4a, 4b and a vane 2, 6a, 6b rotatably mounted about the cylinder axis; each successive vane being mechanically connected to the preceding casing whereby the drive is transmitted pneumatically between the first and last casing in stages. 1 is the driving and 9 the driven shaft.