baber/WOPTO huggingface dataset:
Patent GB-911676-A (GB)
Title: Process for the surface treatment of semi-conductor elements
IPC: C23F1/00
Filed: 1959-06-05
Abstract: 911,676. Semi-conductor devices. SIEMENS-SCHUCKERTWERKE A.G. June 5, 1959 [June 18, 1958], No. 19325/59. Class 37. In a method of treating the surface of an element consisting of a slab comprising at least one PN junction emerging on a flat face of the slab a jet of chemical etchant is directed on to said face and the slab rotated about a vertical axis perpendicular to said flat face so that the etchant is removed by centrifugal force after etching the exposed junction. In the embodiment (Figs. 1 and 2) a transistor comprising a wafer 45 of P-type silicon to which have been alloyed antimony gold alloy foils to form collector 46 and emitter 47, and circular and annular aluminium foils to form base contacts 48, 49 is etched in this way. The transistor is fixed via plate 4 on a hollow copper stud 5 and the whole assembly rotated by motor 36 in a chamber comprising a channelled " Teflon " (Trade Mark) plate 39 and polymethylmethacrylate cover 42. Initially, the emitter PN junction is etched in a 1 : 1 mixture of hydrofluoric and nitric acids supplied by eccentrically mounted jet 50. At the same time distilled water is fed via jet 51 to dilute the acid before it reaches the base contact 49. After washing in water supplied by jet 50 the collector junction is etched by fluid from jet 52. During the etching steps the copper stud is protected by a flow of water from jet 53. In alternative methods a plurality of elements are placed on the face of a single rotating disc.
Patent GB-255645-A (GB)
Title: Improvements in or relating to boxes for containing cigars, cigarettes and the like
IPC: B65D83/02
Filed: 1925-07-30
Abstract: 255,645. Klingenstein & Co., Ltd., W., and Baird, S. July 30, 1925. Content, facilitating access to.-A box for cigars &c. is provided with a false bottom or tray g hingedly or flexibly secured to the front edge e' of the bottom a of the box and connected by tapes h or the like to the lid d so as to be tilted when the lid is raised.
Patent GB-243049-A (GB)
Title: Improved system of facsimile telegraphy by wireless signals
IPC: H04N1/00
Filed: 1924-08-15
Abstract: 243,049. Belin, E. Aug. 15, 1924. Copying and writing telegraphs; thermionic modulating systems.- Relates to copying telegraphic systems of the kind described in Specifications 1615/08 and 16272/08, in which differences in level of the picture &c. are converted into current variations by a microphone; and consists in using resistancecoupled valves for amplifying the microphone currents and an energy-absorbing valve for modulating the carrier wave. In an alternative arrangement, the microphone is connected in the circuit of a low-frequency oscillating valve, and the resulting current is amplified and used to modulate a carrier wave. Fig. 1 shows the first system, in which the microphone M is fed with direct current from a battery, and is connected in the grid circuit of the first amplifying valve A1. The grid of the second amplifier A2 is rendered negative by a battery B and is connected across a resistance R in the plate circuit of the valve A1. The plate potentials of the valve A2 are applied to the grid of an absorption valve Ab arranged to modulate the output of the carrierwave oscillator E. The modulation causes a variation of amplitude and frequency of the carrier wave. For reception the incoming waves are heterodyned, and the beat currents are passed through an oscillograph similar to that referred to in Specification 1615/08. The frequency of the beats varies with the degree of modulation produced at the transmitter, and the oscillograph on account of its inertia is sensitive to the variations in beat frequency. A beam of light reflected by the oscillograph passes through a screen of graduated opacity and affects a moving sensitized film. In an alternative form of transmitter, the microphone M, Fig. 2, is connected across a coil P in the circuit of a low-frequency oscillating valve H. The resulting modulated currents are amplified by transformer-coupled or resistance-capacity-coupled valves A1, and utilized to modulate a carrier wave. Reception is effected by simple rectification without heterodyne, and the rectified current passes to an oscillograph.
Patent GB-775822-A (GB)
Title: Improved method for preparing an extrusion material by mixing a granular superpolyamide and a dihydroxybenzene
IPC: C08J3/20
Filed: 1955-07-05
Abstract: A granular polyamide and a dihydroxybenzene powder are heated to a temperature between 50 DEG  C. and the melting-point of the dihydroxybenzene while mixing.  The dihydroxybenzene becomes incorporated into the polyamide grains yielding a product useful for injection moulding or for spinning by extrusion, the formed objects having a good resistance to the effect of heat.  In an example, washed and dried polyamide grains are cooled to about 45 DEG  C., mixed with catechol and the mixture heated slowly, e.g. in 6 hours up to 70 DEG  C. and held at that temperature for half-an-hour.
Patent GB-123953-A (GB)
Title: Improvements in Pressing Machines for Ironing Purposes.
Inventor: GOOLD LEWIS WILLIAM
IPC: D06F71/40
Filed: 1918-11-27
Abstract: 123,953. Goold, L. W., (American Laundry Machinery Co.). Nov. 27, 1918. Ironing-machines with pressing action only; work-supports for.-Machines for pressing knitted woollen fabrics, such as .sweaters, are constructed so as to avoid discolouring and marking of the articles. In existing machines, the articles are pressed between a padded bed which moves relatively to a heated pressing-head, and a layer of canvas or other fabric is interposed between the articles and the head, with the result that an imprint of the fabric is formed on the articles and, in addition, the heat causes the colours to run. In the present construction, the articles are placed beneath a flap having an under surface of woollen material in direct contact with them. Fig. 1 shows the invention applied to an underwear press comprising a fixed heated pressing-head 2 and a padded bed 3 moved in vertical guides by toggle mechanism 4. Sliding trays 8, carrying the articles, are moved into position under the pressing-head prior to each pressing operation. Each tray, as shown in Figs. 2 and 3, comprises a fabric work support 12 laced to a framework. The flap, which may consist entirely of woollen material or, as shown, of a layer of woollen material 18 backed by canvas 16, is secured at 14 along one edge to the support 12 by stitching, buttoning, or the like. When the articles are positioned under the flap, the other edge is secured to the support by snap fastenings 15. When used on a garment press comprising upper and lower heated pressing- heads, one edge of the flap is secured directly to the padded lower pressing-head.
Patent GB-403154-A (GB)
Title: Improvements in control valves for garment presses
IPC: D06F71/06
Filed: 1932-07-11
Abstract: 403,154. Lift-valve actuating-mechanism. RICHARDSON, J. R. S., and WHITAKER, Ltd., R. G., Portland Road, Kingston-on-Thames. July 11, 1932, Nos. 19547 and 24401. [Class 135.] A multiple-way lift valve 1, 1a, 2, 3, Fig. 1, for use in the supply of fluid pressure to the piston and cylinder mechanism 16, 12 operating an ironing-press is controlled by two levers 19, Fig. 2, pivoted at 22, which require simultaneous and sustained operation by both hands of the operator until the press is initially closed. A bridge 18 is pivoted at 21 to each lever and is provided with a roller 25 which bears on the end of a valve spindle 1, Fig. 1. The spindle carries a piston 4 and inlet and exhaust valve members 2, 3 and works in a casing 5 formed with a fluid pressure inlet port 7, exhaust port 9, port 11 communicating with a port 17 in the cylinder 12 which becomes uncovered as the piston 16 descends, a port 14 which communicates with the cylinder 12 above the piston 16, and a passage 13 between the two portions 6, 8 of the casing 5. Fluid pressure in the chamber 6 aided by a spring 15 connected to a release lever 26 coupled to the spindle 1 keeps the valve 2 normally closed and valve 3 open. These valves must be kept open and closed respectively until fluid-pressure from the cylinder 12 acts behind the piston 4. The cylinder is exhausted by swinging counterclockwise about its pivot 27 a trigger 26 which engages the valve spindle.
Patent GB-205555-A (GB)
Title: Improvements in or relating to traverse mechanism for yarn, thread and like winding machines
IPC: B65H54/28
Filed: 1922-07-17
Abstract: 205,555. Wade, H., (Universal Winding Co.). July 17, 1922. Winding-machines; thread guides.- In traverse mechanism for yarn, thread, and like winding-machines in which a constant length of traverse of the guide is maintained, the speedvariation of the guide is obtained from two separate inter-operating cams, 36, 44 operatively connected to the yarn guide and to each other in such manner that the movement imparted by one is varied bv the other but their formation is such that neither would independently give the desired traverse to the guide. The guide is traversed by a lever which is reciprocated at constant speed by one cam and has superposed upon such movement an oscillatory movement by the other cam. The thread guide G receives motion through a roller 15 pivoted to a L-shaped lever 20, one corner of which has a hub 30 and roller 34 which engages with the helical groove 35 of a traverse cam 36, and the lower end of the arm 28 of the lever 20 has a pivoted roller 46 engaging a curved cam groove 44 in an arcuate plate 41 secured to the machine frame. The guide G has an accelerated speed in moving to the right and a retardation in the reverse direction as a result of the oscillating motion of the lever 20 provided by the inclined cam groove 44, and the winding will be closer at the base than at-the apex of the cone X. Projecting forwardly from the hub 30 is a pin 29, by means of which the lever is pivoted to a slide 21 having lower bearings 22 encircling a fxed horizontal rod 23 and an upper forked extension 26 engaging a bar 25. The roller 15 is adapted to communicate its motion to the guide by engaging the bars 13 bent outwardly from the sides of a central opening 14 in the plate portion 11 of a crosshead 4 on which the guide G is mounted. The crosshead is provided with a loop to straddle the lower rod 8. The guide G consists of a blade-like member formed with a thickened head which is pro. vided with a groove 3 through which the yarn y feeds to the package. To prevent the guide from making a pause at the end of its stroke, the cam groove 44 is provided at its upper end with an abrupt bend 45, which acts on the roller 46 to rock the upper end of the lever 20 and hence the guide to the left and then to the right with an accelerated movement. Specification 205,550 is referred to.
Patent GB-685359-A (GB)
Title: Method and apparatus for making gas rich in hydrogen and oxides of carbon, mainly carbon monoxide
IPC: C01B3/46
Filed: 1951-08-21
Abstract: 685,359. Oil gas. UNITED ENGINEERS & CONSTRUCTORS, Inc. Aug. 21, 1951, No. 19667/51. Class 55 (ii). In a process for making a,gas containing hydrogen and carbon monoxide comprising alternate heating and make periods and passing a preheated mixture of a gaseous hydrocarbon and steam with or without air over a heated bed of a reforming catalyst, the generator employed has a combustion zone 2, a heat storage bed 3 immediately above the combustion zone and highly heated by combustion of a fluid fuel in the zone 2, a second heat storage bed 15 which is not heated to such a high temperature as the bed 3 and a bed of heated catalyst 4, and the reactant hydrocarbon is introduced through a line. 8 so that it is preheated only by passage through the second heat storage bed 15 before entering the bed of catalyst 4. During a heating period a fluid fuel is admitted to the combustion zone 2 through line 6 and air through line 5 until the heat storage and catalyst beds are heated to the desired temperature, waste gases leaving by a stack valve 7. In the following make period the hydrocarbon is admitted at 8, steam through line 9 and/or 18 and air if required through line 10 and/or 5 and the make gas leaves through line 11. The temperature of the second heat storage bed is not greater than 2000‹F at the beginning of a make period and not less than 1400‹F at the end, the temperature of the catalyst bed varies between 1800‹ and 1300‹F. The catalyst is preferably nickel or cobalt but vanadium, chromium or platinum may be used. The hydrocarbon may comprise natural gas, refinery oil gas, methane, ethane, propane, butane, vaporized heavier hydrocarbon distillates and corresponding unsaturated hydrocarbons such as ethylene, propylene and butylene. In a modification the two heat storage beds are arranged in two separate vessels. Specification 668,978 is referred to.
Patent GB-757843-A (GB)
Title: Improvements in door latch operating unit
Inventor: MCCONNELL FRANK JOHN
IPC: E05C1/16
Filed: 1954-07-06
Abstract: 757,843. Securing Knobs on spindles. AMERICAN HARDWARE CORPORATION. July 6,1954, No. 19703/54. Class 80(2) [Also in Group XXV] In a door latch operating unit (see Group XXV) the outside knob 44 is non-detachably secured to its spindle 39 by an ear 54 engaging an aperture in the spindle. The 'inside knob 43 is detachably secured to its spindle 39 by a spring wire retainer 49, Fig. 6, lugs 50 of which bear against slots 51 in the spindle to press an extension 52 through slots in the spindle and knob. The extension can be depressed to release the knob. Both knobs are prevented from rotating on their spindles by projections 47 which engage longitudinal slots 48 in the spindles. Specification 757,842 is referred to.
Patent GB-140853-A (GB)
Title: Improvements in or relating to apparatus for converting alternating electric currents to direct currents and ???? ?????
IPC: H02M7/54
Filed: 1918-11-29
Abstract: 140,853. Calverley, J. E., and Highfield, W. E. Nov. 29, 1918. Commutator switching-arrangements; phase, changing.-Polyphase currents are converted to direct currents, or vice versa, by a collection of transformers with windings on the direct-current side connected to a commutator, while on the alternating-current side the windings are in two groups. In one group, each transformer has windings connected in two phases, and in the other group each transformer has a winding in one phase only or a combination of windings to produce an equivalent phase effect. The connexions of six transformers for converting from three-phase current to direct current are shown in Fig. 5. The transformers B, D, Fare energized by single coils included in the phase leads Y, X, Z respectively. The other transformers A, E, C have two coils each connected in series with the coil on the adjacent transformer. Each transformer has two secondaries 1, 1<A> - - 6, 6<A>, the coils being connected in the order 1, 2, 3, &c., 1<A>, 2<A>, 3<A>, &c. to the segments a - - l of the commutator. Direct current is taken off by brushes W which are rotated by a synchronous motor connected to the supply, and the motor may be over-excited to correct for the magnetizing-currents of the transformer. The six transformers shown may be replaced by two threephase transformers, the cores of one carrying primary coils separately connected in each of the phases, and the cores of the other carrying two coils connected in different phases. Additional transformers or cores carrying two coils may be used to provide more intermediate steps between the main phases. Direct current may be converted to alternating current and then back to direct current of a different voltage.
Patent GB-961890-A (GB)
Title: Improvements in or relating to ovens for heating by micro-waves of objects
IPC: A47J39/02
Filed: 1962-05-23
Abstract: 961,890. Waveguide terminations. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 23, 1962 [May 26, 1961], No. 19865/62. Heading H1W. [Also in Division H5] Microwave energy is absorbed in a cooling vessel containing a liquid which presents an inclined surface to the incident radiation. The microwave heater shown comprises a linear radiator 1 and a cylindrical parabolic reflector 2 arranged above a conveyer belt 3 for objects to be heated. The absorbing vessel 5 is divided into compartments by partitions 6 arranged in such a manner that water flows from inlet 8 to outlet 9 down a kind of liquid staircase. The configuration of the water surface is such that the incident radiation is dispersed. In a modification (Fig. 2, not shown), the water falls down from either side of the highest compartment which occupies a central position.
Patent GB-458068-A (GB)
Title: Propelling apparatus for swimmers
IPC: A63B35/00
Filed: 1936-07-17
Abstract: 458,068. Swimming-supports. KJARTANSSON, M., 7, Leifsgata, Reykjavik, Iceland. July 17, 1936, No. 19876. [Class 77] A rigid buoyant support is adapted to be fastened to a swimmer's back or front by means of straps 10 and carries a U-shape support 2 on which a sail 1 can be raised and which is adjustable in its support to suit the wind. The straps may serve also to support a light frame carrying a keel below the swimmer's body. Lines are provided for raising the sail and adjusting the " mast."
Patent GB-233211-A (GB)
Title: Improvements connected with safety devices for colliery cages and the like
IPC: B66B5/24
Filed: 1924-08-23
Abstract: 233,211. Baylis, W. H. Aug. 23, 1924. Catch gear of minecage type. - In safety devices of the kind in which each guide rope 6 is gripped between the cam-shaped nose 9 of a pivoted lever 8 and a guide bracket 5 when the hoisting rope breaks, the brackets project beyond the side of the cage and are shaped as shown. The movement of each lever may be assisted by a spring 15.
Patent GB-1127959-A (GB)
Title: Self-locking bracket
IPC: A47B57/56
Filed: 1967-05-01
Abstract: 1,127,959. Brackets. A. C. WORRALO. 1 May, 1967 [30 May, 1966], No. 19946/67. Heading A4B. . A bracket 18 is adjustably supported along the length of a channel section upright 10 having inturned lips 13 defining a longitudinal gap 14, the bracket 18 having a circular neck 19 extending through the gap 14 and terminating in an oval section lug 20 to define shoulders which bear on the inner faces of the lips 13, the rear end of the lug 20 engaging and resiliently deforming an arcuate, plastics strip 15 supported at its side edges in serrated recesses 12 in the upright 10. The bracket 18 is pivotable from its operative position A to a position B in which it is freely slidable along the length of the upright 10. In a further pivoted position A the bracket 18 is rotatable through 90 degrees about the axis of the neck 19 so that the lug 20 may pass through the gap 14 to separate the bracket 18 from the upright 10. The foot 21 of the bracket 18 frictionally wedges between the lips 13. Stops 22 about the front of the uprights 10 in the operative position of the bracket 18. As shown the bracket 18 is suitable for supporting shelves but may alternatively be in the form of a hook.
Patent GB-895770-A (GB)
Title: Improvements in the colouration of polyester fibres
Inventor: GANGNEUX RENE EUGENE MARCEL
IPC: D06P3/54
Filed: 1958-06-23
Abstract: Polyester fibres are coloured by applying thereto a monoazo dye of formula <FORM:0895770/IV (c)/1> wherein one of the X substituents is a carbamoyl sulphonamido or substituted sulphonamido group, the other X being a hydrogen atom, the benzene nuclei A and B may be further substituted and one at least of A and B is substituted by alkoxy group when X is a carbamoyl group.  The dyeing may be used in dyeing or printing polyester fibres under ordinary or super-atmospheric pressure and, if desired, in the presence of a carrier and/or an alkylaryl sulphonate or the condensation product of a sulphonated aromatic compound, particularly a dinaphthylmethane sulphonate.  In an example the dye 5-nitro-4-aminotoluene-->1-(31-sulpho-amido-phenyl) -3-methyl-5-pyrazolone is prepared and used to dye polyester fibres at 100 DEG C. in an aqueous dyebath which also contains sodium orthophenylphenolate, diammonium phosphate and sodium dinaphthylmethane disulphonate.  The fibre is treated after dyeing in an alkaline reducing bath and a yellow fibre is obtained.  In further examples further dyes and the dyeing and printing of polyester and mixed polyester cellulose fibres are specified.
Patent GB-230357-A (GB)
Title: Process of manufacturing rubber heels
IPC: B29C43/18
Filed: 1924-08-23
Abstract: 230,357. Marks, E. C. R., (Lawson-Whitehead Co.). Aug. 23, 1924. India - rubber, attaching to metal &c.-Means for manufacturing rubber heels of the type in which nail or fastening receiving washers are anchored in spaced positions in an unvulcanized rubber heel, the blank being moulded and vulcanized at a subsequent operation, comprise a die 2 having a heel-shaped cavity 3 to hold the blank, posts 5 secured in the base 6 and projecting through holes in the die 2, and springs 10 to hold the die in the normal raised position, upward movement being limited by the heads of the bolts 12 screwed to the base 6. The posts 5 are shouldered at the upper ends, each part having a central tip adapted to project through the holes in the washers 7. The die 2 moves up and down in ways 8 formed in a yoke 9 on the base 6, and pressure is applied through a screwshank device by a handwheel 18. In operation a washer is placed upon each post 5, and the blank, placed in the cavity 3. is forced down upon the posts 5. To determine the depth to which the heel-washers shall be embedded, the bolts 12 mav be fitted with washers to form an adjustable stop. On returning the hand-wheel to the normal position, the springs 10 raise the die, thereby lifting the blank 4 with the embedded washers from the posts 5. In a modification, pronged washers are used, the die having a heel cavity slightly larger than the blank, and a number of washer-receiving pockets being formed in the bottom of the cavity. The washers are placed in these cavities with the prongs upward, the blank being then forced down upon the washers. During the subsequent moulding and vulcanizing operations, posts formed in the mould hold the washers in position, until the stock flowing in the mould secures the washer in the body of the heel.
Patent GB-811230-A (GB)
Title: Improvements in conductor wire systems for electric railways
IPC: B60M1/23
Filed: 1956-06-28
Abstract: 811,230. Suspending conductors.. KUMMLER & MATTER A.G. June 28, 1956 [July 4, 1955], No. 20047/56. Class 36. Adjustable suspension of an overhead conductor wire 13 from a supporting cable 1, which permits the conductor to move vertically towards the supporting cable, is obtained by making the suspension wire in at least two parts, the upper being pivotally connected to the supporting cable by the clamp 2 and having an adjustable clamp 7 affixed to its lower end; and the lower part being pivotally connected to the conductor by a clamp 14 and having its upper end disposed in a guide hole 9 in the clamp 7 a ball 11  being provided to retain this end in the clamp.
Patent GB-222269-A (GB)
Title: Wrist supports
IPC: A61F13/10
Filed: 1923-08-07
Abstract: 222,269. Hansard, H. H. Aug. 7, 1923. Gloves.-A wrist support consisting of bands 30, 28 connected by spring steel strips 26a, 27 is incorporated in a glove to which it may be attached by means of rivets.
Patent GB-670484-A (GB)
Title: Improvements in or relating to propeller systems particularly for aircraft comprising two coaxially mounted adjustable pitch propellers
IPC: B64C11/30
Filed: 1946-08-01
Abstract: 670,484. Variable-pitch propellers. UNITED AIRCRAFT CORPORATION. Aug. 1, 1946 [Aug. 9, 1945], No. 20119/50. Divided out of 670,412. Drawings to Specification. Class 114. [Also in Group XXIX] The subject-matter of this Specification is identical with that described in Specification 670,412 but the claims are directed to the mechanism whereby, when both propellers are stationary, one propeller is unfeathered as a result of the unfeathering of the other propeller by auxiliary power means. Specifications 560,522 and 752/44 (as open to inspection under Sect. 91) also are referred to.