baber/WOPTO huggingface dataset:
Patent GB-800221-A (GB)
Title: Improvements in or relating to semi-conductor devices
Inventor: ARTHUR JAMES BONELLA
IPC: H01L29/36
Filed: 1954-05-03
Abstract: 800,221. Semi-conductor devices. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 6, 1955 [May 3, 1954; Jan. 7, 1955], Nos. 12779/54 and 529/55. Class 37. A semi-conductor device comprises an extrinsic body of one conductivity type having at least one rectifying connection, an ohmic base connection and a second base connection which does not inject minority carriers when a sweep current is applied to the base connections. The invention is applicable to diode rectifiers and transistors and avoids effects due to the storage of minonty carriers. Fig. 7 shows a transistor comprising an N-type base region 2 with emitter, collector and base electrodes 5a, 5b, 1b respectively. A further electrode is constituted by region 6 of low resistivity N+ material having a soldered connection 1a. If a positive voltage is applied to electrode 1a relative to electrode 1b, the sweep current in region 2 removes holes at a rate faster than that at which they are thermally generated. Owing to the fact that the soldered connection 1a is remote from the N+/N junction, and that the hole density in the N + region is very small, no holes are injected from N+ region 6 into N region 2. The N+ region may be provided by a crystal growing process, or by diffusing impurity into the surface of an N-type body. Figs. 10 and 11 show transistors comprising other shapes of semi-conductor bodies ; the sweep field can be arranged to assist the transfer of minority carriers from emitter to collector. The semiconductor may consist of germanium, and the impurity of antimony, or antimony and lead. Specifications 756,339 and 769,702 are referred to.
Patent GB-384542-A (GB)
Title: Improvements in or relating to the mounting of the rear wheels of plows
IPC: A01B3/00
Filed: 1932-05-04
Abstract: 384,542. Implements for working land. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Massey-Harris Co., Ltd. ; Toronto, Canada.) May 4, 1932, No. 12906. [Class 6 (i).] In ploughs having a rear trailing wheel for engaging the side of a furrow, the axle 3 of the wheel 2 is bent upwardly at its forward end and mounted in a tubular support 6 connected to a bracket 4 on the plough beam 1 by converging links 7, 8 one of which is connected to the plough-lifting mechanism, and a positioning member and a guide member are provided, one being connected with the beam 1 and the other with the axle 3 above the member 6, and the arrangement being such that the positioning and guide members co-operate to bring the rear wheel 2 to operative position immediately the plough is lowered and then normally to hold it in that position. The guide member comprises diverging arms 14 provided with a depression 15 on the underside and carried by a head 13 on a lug 12 mounted on one of the pivots of the links 7. The positioning member comprises a roller 18 carried by a bracket 16 adjustably clamped on the upper end of the axle 3. The wheel is held in ploughing position by the roller 18 engaging in the depression 15. After temporary raising of the plough and deflection of the wheel by an obstacle, the wheel is automatically brought back into position by engagement of the roller 18 with one of the arms 14. When the plough is raised for travelling the axle 3 turns freely in the bearing 6 between stops 28. The normal operative position of the wheel 2 may be varied by angularly adjusting the bracket 16 on the axle end. The dip of the plough may be adjusted by screwing a screw 26 into or out of the head 13, the screw bearing against the beam 1. In a modification the guide arms diverge upwardly and are connected to the axle 3, and the roller 18 is carried by the head 13.
Patent GB-498590-A (GB)
Title: Improvements in and relating to reinforced concrete beams, floors and the like
IPC: E04C3/20
Filed: 1938-05-03
Abstract: 498,590. Reinforced -concrete floors. WALLER, J. H. DE W. May 3, 1938, No. 12935/37. [Class 20 (iv)] Relates to reinforced-concrete floors of the kind comprising pre-cast reinforced-concrete joints J having longitudinally extending steps which support the shuttering upon which the concrete is poured. According to the invention, the joists are reinforced by sets of upper longitudinal members N, lower longitudinal members M, and substantially vertical members L embracing the members M and N, and the floor is reinforced by horizontal metal rods I which are embedded either in the joists and extend into the flooring, as shown in Fig. 1, or in the flooring and extend above the tops of the joists through which the members L extend, as shown in Fig. 4. Each side of the joist J, Fig. 1, is formed with three steps D, E, F, the lowest step F of which supports the shuttering which may be of asbestos cement, metal, or wood. The stops E may be used to support further reinforcement which extends through the flooring and rests upon similar steps of adjacent joists.
Patent GB-726263-A (GB)
Title: Treatment of textile materials formed of fibres other than animal fibres to increase their wear resistance, abrasion resistance, dimensional stability and resistance to snagging
IPC: D06M15/595
Filed: 1953-05-08
Abstract: Textile material composed of non-animal fibres is treated with a solution in an organic solvent of a high molecular weight synthetic linear polyamide which is substituted with alkoxymethyl or hydroxymethyl groups on the carbonamide nitrogen atoms.  The treatment may be followed by a further treatment with an aqueous solution of a compound, e.g. a mineral acid, which will hydrolyse the substituted polyamide to its unsubstituted form.  Textile material treated with hydroxymethyl substituted polyamide may alternatively be further treated with an aqueous solution of sodium hydroxide or sodium sulphite or heat-treated to restore the polyamide to its unsubstituted form.  The solvent may be ethyl or methyl alcohol and may contain up to 40 per cent of water.  The material may be treated as loose fibres, yarns, fabrics or made-up goods.  Pigments may be included in the treating solution.  In examples, nylon, nylon-viscose rayon, and cotton fabrics are treated with solutions of N-methoxymethyl nylon or N-ethoxymethyl nylon.  Specifications 573,482, 576,363, and 692,380 are referred to.
Patent GB-1221124-A (GB)
Title: Apparatus for stirring, measuring viscosity and boiling of sugar
Inventor: THIELE HENRY
IPC: C13B25/06
Filed: 1968-03-18
Abstract: 1,221,124. Stirrers. J. PFEIFER and A. LANGEN [trading as PFEIFER & LANGEN]. 18 March, 1968, No. 13015/68. Heading B1C. [Also in Division G1] A fluid is agitated by a stirrer 64 carried on a substantially horizontal rod 43 secured to a substantially vertical flexible diaphragm 46 in the wall 41 of the container. The rod may describe a circular or elliptical cone, or may rock or axially reciprocate or perform a combination of these movements, in such a way that the power consumption over one cycle remains constant. As shown the stirrer is a hollow sheet metal cylinder but it may be a cone, or of paddle form, or if reciprocating can consist of flat, conical or cylindrical discs, or members spaced along the rod; it may have ribs or other projections. The stirrer is driven by a chain drive the tension in which is used as a measure of the viscosity of the mix. (see Fig. 2, not shown, and Division Gl) and is used to control the addition of constituents in a sugar boiling method and apparatus (see Figs. 3-5, not shown).
Patent GB-752498-A (GB)
Title: Improvements in and relating to coatings for optical elements
IPC: G02B5/28
Filed: 1954-05-04
Abstract: 752,498. Optical systems. KODAK, Ltd. May 4, 1954 [May 4, 1953], No. 13020/54. Drawings to Specification. Class 97 (1). An optical element is coated with a high refractive index interference layer of titanium nitride. The layer may be applied directly to the element, if a lens, or applied alternately with layers of magnesium fluoride. The layer may be formed by deposition of metallic titanium on the element by thermal evaporation under vacuum and subsequent heating of the coated element in an atmosphere of nitrogen preferably at a temperature between 400‹ C. and the softening point of the element.
Patent GB-611301-A (GB)
Title: Improvements in and relating to apparatus for locating a target
IPC: G01S13/46
Filed: 1946-04-30
Abstract: 611,301. Echo object-locating apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). April 30, 1946, No. 13048. [Class 118 (ii)] [Also in Group XL (c)] An echo-type object-locating system comprises a directional transmitter, a directional receiver, means for rotating the transmitter and receiver at a constant angular velocity with the receiver lagging behind the transmitter, means for varying the angle of lag, and means utilizing the angle of lag to determine the range of remote objects from which echoes are received. A pulse of energy is received back from an object at the range for which the lag angle is adjusted when the receiver is directed in azimuth to that object and the range is the product of the velocity of wave propagation and the lag angle divided by twice the angular velocity of the transmitter and receiver. In a supersonic system, a transmitter 1 is driven at constant angular velocity by motor 4 and radiates continuously. By means of selsyns 5 and 10 coupled through differential selsyn 9 receiver 2 is rotated at the same rate and with an angle of lag behind the transmitter determined by differential selsyn control 14. The setting of the dial of control 14 provides a measurement of object range. The range and azimuthal angle may be displayed on cathode-ray tube 15. A voltage from potentiometer 17 coupled to control 14 is applied to deflection coils 16 to deflect the beam radially an amount proportional to the object range and coil 16 is rotated about the neck of the tube so as to correspond angularly with the direction of the receiver by means of selsyn 21 coupled to the transmitter, differential selsyn 20 also coupled to control 14 and selsyn 19. The received pulse is applied to grid 18 of the tube to brighten the trace at a position corresponding in range and azimuth with the corresponding object.
Patent GB-418998-A (GB)
Title: Apparatus for extinguishing flame in the gases flowing from the exhausts of aircraftengines
IPC: F01N13/08
Filed: 1933-05-04
Abstract: 418,998. Exhaust pipes ; flame extinguishers. VICKERS (AVIATION), Ltd., Byfleet Road, Weybridge, Surrey.-(Kurth, F. J.; 19, Grafenm³hlenweg, Dellbruck, Cologne, Germany.) May 4, 1933, No. 13057. [Class 7 (ii).] A flame extinguisher carried by the exhaust pipe 10 of an air-craft engine consists of nested cones 11, 12, 13, the angle of divergence of the walls of the innermost cone being 12-18‹ and that of the walls bounding the annular spaces between the cones being half as much. The crosssection of the cones may merge from circular at the end adjoining the exhaust pipe into elliptical at the outlet, where the ratio between the major and minor axes is about 1À7. In such a case the divergence angles are computed as being those of circular cones of the same perimeter at the outlet. The length of the conical portion of the extinguisher should be about 3¢ times the radius of the exhaust pipe. Specification 227,825, [Class 7 (ii)], is referred to.
Patent GB-579192-A (GB)
Title: Improvements in or relating to electro-magnetic couplings for transmitting mechanical power
IPC: H02K49/02
Filed: 1941-10-13
Abstract: 579,192. Transmitting mechanical power; electromagnetic couplings. GENERAL ELECTRIC CO., Ltd., HUGGARD, J. P., and JAKEMAN, R. G. Oct. 13, 1941, No. 13160. Addition to 541,976. [Classes 35 and 38 (iv)] In an electromagnetic coupling for transmitting mechanical power of the kind described in the parent Specification, the direct current winding of the clutch is now carried by the same element thereof as carries the induction motor winding. As shown, a non-reversible shaft 1 drives a shaft 2 in one direction through a slip coupling comprising D.C.-excited poles 15 rotated with shaft 1 and a closed circuited winding 6 carried by shaft 2. Winding 6 is a polyphase one, connected in reverse phase sequence to a similar stationary winding 7 of an alternator 9, 11, the rotor 9 of which is driven by shaft 1, but which is not excited by D.C. for this particular direction of rotation of shaft 2. Winding 7 may be snort-circuited also. To reverse shaft 2, the short-circuit on 7 is removed, rotor winding 4 is energized by D.C. and excitation is removed from poles 15. The polyphase winding 6 is thus energized by the alternator and rotates the shaft through interaction with a squirrel cage 8 carried by poles 15. D.C. excitation may subsequently be applied to the poles to obtain synchronous running.
Patent GB-1359100-A (GB)
Title: Apparatus for advancing line of articles in intermittent steps
IPC: B65B41/18
Filed: 1972-03-21
Abstract: 1359100 Feeding webs HOFLIGER & KARG 21 March 1972 [24 March 1971] 13247/72 Heading B8R An apparatus for providing and controlling step-by-step advance of a web 2 of packaging material to a number of successive work stations of a packaging machine, e.g. wherein the web is of thermoplastic material and has receptacles 1 and the stations comprise a receptacle filling station, a covering and sealing station and a cutting station, comprises a reciprocable chain 7 which transmits reciprocatory motion from drive means, e.g. an oscillatable lever 10, to web advance means, e.g. a pin chain conveyer 3, the lengths of the web advance steps being determined by means which vary the effective length of the chain 7 between the drive means and advancing means at such times in relation to the reciprocation of the chain as to increase or decrease the length of a respective step and which are controlled by sensing members 14, 15 responsive to web markings, e.g. the edges of the receptacles. Reciprocation of the chain is transmitted via a free wheel device 6 to the pin chain conveyer 3, the effective length of chain 7 being varied either by a roller 13 which can be moved on a pivotable lever by pneumatic cylinder 11 controlled by the sensors via a pneumatic valve 20 to urge chain 7 against the action of a spring 8, from its straight line path between a member 9 on lever 10 and the freewheel device 6, or by adjustment of the member 9 along the lever 10.
Patent GB-111311-A (GB)
Title: Improvements in Carburettors for Internal Combustion Engines.
Inventor: AHLBERG GUSTAV AXEL FERDINAND
IPC: F02M1/00
Filed: 1916-09-20
Abstract: 111,311. Ahlberg, G. A. F. Sept. 20, 1916. Check lift valves.-The mixing chamber of a carburettor is provided with a suction-actuated air valve 133 loaded by a spring 137 and adapted to be opened by suction. The load on the valve may be adjusted by a screwed rod 143 which acts, through a spring 142, upon a lever 139 which bears against pins 138 rigidly attached. to the valve.
Patent GB-163713-A (GB)
Title: Improvements in and relating to the carrying of spare rims and tires on motor vehicles
IPC: B62D43/02
Filed: 1921-05-11
Abstract: 163,713. Lawrence, F. K. May 26,1920, [Convention date]. Mounting and securing reserve tyres on vehicles. -In a device for mounting spare rims and tyres on motor vehicles, the device, carried by the rear end of the chassis, is first adapted to be engaged with the spare rim and tyre as they rest in vertical position upon the ground, and then by the use of a handle on the device the rim and tyre are lifted into carrying position upon the vehicle, where they are held and locked. The handle 17 is carried by side members 14, which turn about a fixed pin 12 and are jointed at 16 to an inner member 19 fitted with a pivoted rim-engaging block 9. The member 19 is also connected by links 22 to a fixed part 26 upon the chassis, and other rimengaging blocks, which, however, are fixed, are provided as at 8. For mounting the spare rim and tyre, the parts 14, 19 are pulled over to the rear until the block 9 is in a position to engage with the rim. The handle is then raised until the parts 14, 19 come into line again, as shown, and by this time the blocks 8 also engage with the rim. A padlock passed through aligned holes 34 serves to secure and lock the device in operative position.
Patent GB-133913-A (GB)
IPC: G09F3/14
Abstract: 133,913. Behrman, M. B. May 10, 1919. Securing labels.-The upper part of a tag or label is folded over to form a pocket in the upper edge of which an eyelet 4 is secured. One end of a string 7 having tips 8 at the ends is inserted at the eyelet. It is retained by the tip, leaving the string free to pass round the article to be labelled. In Fig. 10 is shown a separate clip device for attaching the string to the label. The folds of the label or the clip are held by rivets 6.
Patent GB-794572-A (GB)
Title: Improvements in photopolymerizable compositions and printing plates containing them
Inventor: WAILE ARMAND DE
IPC: G03F7/038
Filed: 1955-05-09
Abstract: Photopolymerizable compositions for use in the production of printing plates employed in offset lithography consist of an epoxy resin, obtained by reaction of epichlorhydrin with polyhydric phenols or alcohols, esterified with an unsaturated aliphatic monocarboxylic acid or a cycloaliphatic, aromatic or heterocyclic monocarboxylic acids having unsaturated side chains and a photopolymerizable catalyst.  Unsaturated acids specified are cinnamic, sorbic, cyclohexanylacrylic, furyl acrylic; the corresponding acid chlorides or anhydrides may also be used; known esterification methods are employed.  Suitable catalysts for the photopolymerization are quinones, e.g. tolyquinone, 2 : 6 dichlorquinone, 2 : 5-diphenyl-p-quinone, 1 : 2 and 1 : 4 naphthaquinone anthraquinones; Michler's ketone, 4,41-tetraethyldiamine; diphenyl ketone, 4 : 41-tetramethyl diamino diphenyl carbinol, 4 : 41-tetramethyl diamino benzophenone imide; cross linking may be effected by addition of dicinnamylidene vinyl ketone. Stability of the compounds is improved by adding inhibitors, e.g. hydroquinone.  The materials may be applied to the plate in solution in mixtures of toluene and methyl ethyl ketone.  (1) 20 Parts epoxy resin were mixed with toluene and heated under reflux and cooled.  50 Parts cinnamoyl chloride were added and the mixture refluxed at 100-110 DEG  C.  The mixture was diluted with toluene and the epoxy ester precipitated by addition of ethyl alcohol.  A 1 per cent solution of a mixture of 200 parts of the ester and 5 parts dicinnamylidene vinyl ketone in a 95 per cent toluene-5 per cent butanol mixture was applied to an aluminium base plate and dried.  The plate was exposed to ultra-violet radiation and then developed with a composition comprising an epoxy resin dissolved in a mixture of xylene and cyclohexanol, dibutyl phthalate carbon black and gum arabic.
Patent GB-106080-A (GB)
Title: Process of Transforming Hydrocarbons into other Hydrocarbons relatively Poorer in Hydrogen.
IPC: C10G11/04
Filed: 1916-09-21
Abstract: 106,080. Bostaph Engineering Co., (As signees of Ramage, A. S.). April 27, 1916, [Convention date]. Mineral oils. - Hydrocarbons are transformed into hydrocarbons relatively poorer in hydrogen by bringing their vapours, unmixed with steam or air, into contact with a reducible metal oxide under such conditions as to effect a partial oxidization of the hydrogen of the hydrocarbon and an incomplete reduction of the metal oxide. As metal oxide, nickel, and cobalt may be used. The reduced ferric oxide is preferred; oxides of copper, oxide may be regenerated by means of steam at 750‹ C. with the production of hydrogen, or by treatment with air or a mixture of air and steam. In the case of ferric oxide, the temperatures used in treating hydrocarbons boiling at 150-200‹ C. and 250-300‹ C. are 580-625‹ C. and 700-750‹ C. respectively. Thus, in treating a hydrocarbon consisting largely of olefines boiling at 150-300‹ C., as the various fractions boil off, the temperature of the oxide is gradually raised from 580‹ to 750‹ C. A 90 per cent yield is obtained which, upon fractionation, is found to contain amylene, hexylene, benzol, toluol, octylene, xylene, pinene, limonene, and other olefines and aromatic hydrocarbons. To separate the benzol and toluol, the olefines are removed by treatment with sulphuric acid. By this process, paraffins also may be converted into olefines, e.g. pentane into amylene. An apparatus for effecting this reaction comprises heated tubes 6 containing oxide, into which the hydrocarbon is delivered under pressure by a nozzle 3. The products pass through a reflux condenser 9, from which the heavier bodies return to the supply tank 1 for further treatment, and are then led through a condenser 12, a scrubber 18 into which kerosene is sprayed, a tower 23 with perforated plates, and a " bell " tower 26. The residual gases consisting mainly of hydrogen are collected in a gas-holder 29 and may be led by a pipe 30 to the burner 7 by which the tubes 6 are heated. Reference has been directed by the Comptrollcr to Specification 15049/13, [Class 2 (iii), Dyes &c.].
Patent GB-552812-A (GB)
Title: Improvements in or relating to means for indicating the position of articles by luminous paint
IPC: F21V9/16
Filed: 1941-10-21
Abstract: 552,812. Packaging tape. YOUNG, A. W. Oct. 21, 1941, No. 13524. [Class 94 (i)] [Also in Group XL] Tape 16, Fig. 2, coated on one side with adhesive 18 and on the other side with luminescent material 17 is wound into a roll with a strip 19 of paper &c. to prevent adhesion of the convolutions. In another form, the adhesive tape may be completely enclosed between two strips joined at their edges. Preferably the strip in contact with the luminous side of the tape is also coated with luminescent material and is opaque. The luminous surface of the tape may be coated with a transparent paint.
Patent GB-135338-A (GB)
IPC: B64C3/00
Abstract: 135,338. Saunders, S. E. Dec. 11, 1918. Aeroplanes; planes, construction of; cars.-A twin-engined aeroplane or flying-boat is made in two separable symmetrical longitudinal halves bolted together. Each half of the fuselage has a vertical surface b which contacts with the adjacent surface when assembled, doors being provided to give access from one side to the other. Each half of the machine has a rudder, the two rudders being bolted together when assembled.
Patent GB-171421-A (GB)
Title: Improvements in tractors
IPC: B62D49/00
Filed: 1920-05-17
Abstract: 171,421. Lake, J. M., and McMahon, F. D. May 17, 1920 Frame components, applying and combining.- A tractor with front driving wheels 1 and a castor trailing wheel 10 is constructed with a framework having lower parallel members 5 and upper members 4 widened towards the rear, the upper and lower members being connected by a plate 7 and by bracings.
Patent GB-303208-A (GB)
Title: An improved distributor for artificial manure and the like
IPC: A01C15/16
Filed: 1928-03-15
Abstract: 303,208. Derry, S. March 15, 1928. Manure, seed, &c. distributers.-A machine for dressing ridges or distributing artificial manure, seeds, &c. comprises an interchangeable distributing disc mounted outside, a hopper on a substantially horizontal shaft so as to be in substantial contact with a vertical wall of the hopper and over an outlet opening, the disc being provided with ribs or pockets rigidly fixed on or in the face in contact with the hopper wall. The hopper c is removably secured on a frame b provided with a wheel a from which the shaft d carrying the removable disc e is driven by bevel or other gearing. The disc may be provided with radial ribs m or with a ring of recesses or cells in its face to receive the material passing through an adjustable outlet f in the hopper. The material falls into a spout g thich may have a telescepic or other adjustable outlet. Attached to the spout or in front of it is a curved or other bar h for lifting the leaves or tops of the plants. Set-screws i or other projections may be provided on the shaft d to agitate the material in the hopper; or revolving rods in the hopper may be driven from the wheel a. Coulters &c. for turning over the earth may be provided. The hopper may have several outlets, discs, etc.; or several hoppers may be provided.