baber/WOPTO huggingface dataset:
Patent GB-344336-A (GB)
Title: Improvements in and relating to the production of dyestuffs
IPC: C09B3/30
Filed: 1929-08-23
Abstract: Dibenzanthrone dyes; vat and sulphuretted dyes, dyeing with.-Alkali-soluble dyestuffs are made by treating dibenzanthrone or its substitution products with sulphides of phosphorus, or substances yielding these, at a temperature of 250 DEG  C. or over.  The alkaline solutions of the products may be used for dyeing; or the products may be dyed from a sodium sulphide or hydrosulphite vat.  In examples, (1) dibenzanthrone is heated with phosphorus pentasulphide (a) to 300 DEG  C. to give a product which, in alkaline solution, dyes cotton in blue-black shades becoming violet-red on after-treatment with sodium hypochlorite solution, and (b) to 250 DEG C. to give a product dyeing cotton in bluish-red shades from an alkaline bath, and (2) Bz2:Bz21-dimethoxydibenzanthrone is heated with a mixture of red phosphorus and sulphur in a current of carbon dioxide to 250 DEG  C.; the product, when dissolved in a solution of sodium carbonate, sodium hydroxide or ammonia, dyes wool or silk in blue-grey shades changing to blue-violet when after treatment with sodium perborate.
Patent GB-1005857-A (GB)
Title: Improvements in and relating to foundry mould linings
IPC: B22C3/00
Filed: 1962-07-05
Abstract: 1,005,857. Mould and core materials. UNION CARBIDE CORPORATION. July 5, 1962 [May 7, 1962], No. 25832/62. Heading B3F.  Finely-divided asbestos and a slag in a liquid carrier such as water is applied to a hot mould wall.
Patent GB-481910-A (GB)
Title: Improvements in or connected with electric incandescent lamps
IPC: H01K9/08
Filed: 1936-09-23
Abstract: 481,910. Electric incandescent lamps with internal screens. LINDERS, A. A., and RIVAL LAMPS, Ltd. Sept. 23, 1936, No. 25845. [Class 39 (ii)] In an electric incandescent lamp for vehicle headlights, of the kind provided with a main filament at or near the focus of the reflector and an auxiliary filament which is spaced from the main filament and has an opaque screen beneath it, the auxiliary filament 6 is situated above the level of the main filament 10, with its mid-point in advance of the midpoint of the main filament, and the plane containing the rim of the screen 14 is above the level of the auxiliary filament and parallel or substantially parallel to the axis of the lamp. Preferably the rear end of the auxiliary filament 6 is substantially in vertical alignment with the front end of the main filament 10. In the example the screen is in the form of a flat sheet with its near-side and front edge bent up at right-angles to form margins 16, 15 respectively, with a similar margin 17 along the near-side half of the back edge. Preferably each of the filaments is in the form of a V lying in a horizontal plane. A leading-in wire to the filament 6 serves also to support the screen, which has a rearwardly extending lug 18 welded to the .wire, the return wire 4 from the filament 6 being connected also to the filament 10.
Patent GB-518034-A (GB)
Title: Improvements in and relating to buffers for pit trams, wagons and the like
IPC: B61D11/00
Filed: 1938-09-05
Abstract: 518,034. Railway vehicles. BUTTERLEY CO., Ltd., and HOGG, J. L. Sept. 5, 1938, No. 25864. [Classes 103 (v) and 103 (vi)] In pit trams, wagons &c. of the type having a well-bottom overhung at the sides and ends by the body proper the vertical sides walls 12 of the well-bottom 10 and parts 10a of the wellbottom base extend beyond the end 11 of the body proper forming angled extensions constituting foundations on which the buffers are built up. A plate forming the end wall 13b of' the well-bottom has forwardly extending parts 13a forming the inner vertical walls of the buffers and transverse parts 13 forming the buffer ends, the extreme ends 13c being bent rearwardly. The top covers of the buffers are formed by a cover plate 14 cut out along the middle of its rear edge between the buffers to fit under the overhanging end 11 of the vehicle body. Suitable internal buffer stiffeners 16 may be provided.
Patent GB-462986-A (GB)
Title: Improvements relating to the manufacture of bakery products
IPC: A21D2/26
Filed: 1935-09-18
Abstract: In making bakery products intended especially for diabetics, or doughs or batters therefor, which are prepared with beaten yolks whites or whole eggs, a reduced amount of the egg material mixed with 10-60 per cent by weight of a gum which is easily soluble naturally in cold water is employed, the product having the same characteristics as that prepared with a normal amount of the beaten egg material.  The gums may be employed in dried, e.g. powdered or granulated, form or in solution and may first be purified, e.g. by dialysis, to remove sugar &c.  The gums used include gum arabic, gum Kordafan and gum Senegal.  Various methods of combining the gum and the egg material are described, including adding the gum in solution to the egg material prior or subsequent to beating it, or mixing the powdered gum with dried and pulverized egg material, adding water and beating.  In an example, a portion of gum solution is added to egg yokes and, if desired, a portion also to egg whites, the yolk and whites being separately beaten and then mixed and added to the remaining batter constituents.  In another form, the gum solution is converted to a froth by blowing air or other gas therethrough or developing gas therein, e.g. producing carbon dioxide by adding a carbonate such as sodium bicarbonate or calcium carbonate and an acid, and is combined with beaten yolks or whites or a mixture thereof.  The ordinary flour used in the bakery products may be replaced by flour rich in gluten or flours poor in carbohydrate, such as are produced from wheat or other cereal germs, and flours produced from almond or other nuts, cocoa, bran or casein.  In place of cane or beet sugar, other sugars, e.g. galactose or fructose or other sweetening substances including saccharin, sorbitol or glycine or mixtures thereof may be employed.
Patent GB-1209968-A (GB)
Title: Rf sputtering method and system
Inventor: CASH JOHN HARLEY JR
IPC: H01L23/29
Filed: 1968-05-30
Abstract: 1,209,968. Coating by sputtering. TEXAS INSTRUMENTS Inc. May 30, 1968 [June 5, 1967], No.25958/68. Heading C7F. In a R. F. sputtering apparatus an electrode 52, having an aperture which may be covered by a grid 52a, is positioned between an electrode 26, carrying the target material 74, and a rotatable electrode 36 carrying the substrates 46. A shutter 64 is positioned over the aperture in electrode 52, whilst the substrates are cleaned by ionisation of argon in the chamber. The electrodes 52, 26 are cooled by coils 60, 58 and a dielectric material 30 is positioned between the electrode 26 and a shield 28. A magnetic field is provided by coils 72. Both electrodes 52, 36 may be at ground potential or positive or negative with respect to each other. In a modification Figs. 2 to 7 (not shown) three cathodes which may sputter different materials are arranged at 120 degrees to each other beneath a continuously rotated substrate carrier, and a fixed electrode having holes corresponding to the cathodes.
Patent GB-823795-A (GB)
Title: Servo positioning mechanism
Inventor: SANGSTER ARLON GILBERT
IPC: G05B19/35
Filed: 1956-08-24
Abstract: 823,795. Electric control systems. SUNDSTRAND MACHINE TOOL CO. Aug. 24, 1956, No. 26004/56. Class 40 (1). Apparatus for positioning, e.g. a workpiece relative to a tool comprises a series of resistance bridges wherein one arm is set manually or by a coded record, e.g. a punched card, and the bridges are sequentially automatically balanced, producing successively finer adjustment of the position, via gearing associated with the drive shaft. As shown (Fig. 5), a table 14 is positioned by rotation of a drive shaft 32 coupled by a 100 : 1 step-down gear to shaft 60, and by a 100 : 1 step-up gear to shaft 42, which is itself coupled by a 100 : 1 step-up gear to shaft 52. Shaft 60 is driven by a constantly running motor 72, 82 or 90 via selectively energized electromagnetic clutches 70, 74, 78, 80, 91. Shafts 52, 42, 60 drive the sliders 54, 46, 62 respectively of rheostats RXA, RXB, RXC respectively, each of which is balanced in turn against a potentiometer preset in accordance with information on a punched card. The final, finest adjustment is made on shaft 60 and rheostat RXC, whose slider 62 is spring- biased to overcome backlash. Electrical circuit.-Rheostat RXA forms one arm of a bridge CT1 (Fig. 1), comprising two fixed resistors R1A, R2A and an arm R1B determined by a punched card. Unbalance of the bridge produces a voltage across primary winding T3 of transformer X3, the voltage across secondary windings T3A, T3B being fed to the grids of thyratrons 1A, 2A, whose anodes are fed from the same A.C. supply that feeds the bridge, so that at a given level of unbalance one thyratron fires to energize clutch 70 or 74 whereby motor 72 drives the mechanical assembly of Fig. 5 to balance the bridge. A third winding T3C of transformer X3 provides the bias for a valve 3A, having a relay CR1 in its anode circuit, with normally open contacts CR2 in the cathode circuit of the thyratrons 1A, 2A, so that at a given level of unbalance relay CR1 is energized, closing contacts CR2 to allow the energization of clutch 70 or 74. When the bridge CT1 is nearly balanced relay CR1 falls, contacts CR2 open, and motor 72 is disconnected, whilst another pair of contacts CR5 (Fig. 2, not shown) of relay CR1 allows clutch 78 or 80 to be energized, whereby motor 82 adjusts the mechanism and rheostat RXB at a lower speed for balance in a second bridge circuit. Near the balance position the control is again transferred to motor 90, operating in one direction only on the shafts via clutch 91, the slider 62 of rheostat RXC being spring-biased to approach the balance position in one direction only.
Patent GB-926111-A (GB)
Title: Improvements in and relating to wire wrapping tools
Inventor: MILLER ERNEST JOHN
IPC: H01R43/033
Filed: 1960-07-26
Abstract: 926,111. Wrapping wire on terminals. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 10, 1961 [July 26, 1960], No. 26008/60. Class 83 (4). A motor driven wire-wrapping tool includes drive reversing means and reverse drive indexing means which reversing and indexing means, after a rotational drive by the motor in one direction to perform a wire-wrapping operation, become operative to restore the wrapping bit to a predetermined angular position by a rotational drive by the motor in the opposite direction. Wire, laid in a groove 24 in a rotatable member 22 of a wrapping bit 18, is wrapped around a terminal accommodated in a bore 23 in the member 22 upon rotation of the member 22 in a fixed sleeve 25 by a spindle 17 coupled to a pneumatic motor 2 through a clutch. The motor 2 is driven in the wrapping direction upon depression of a finger-operated member 10 carrying a stud 9 engaging a helical peripheral groove 8 in a collar 7 actuating a valve 3 to move it from a position in which the motor 2 is caused to rotate in a reverse direction. On completion of the wire-wrapping operation the member 10 is released so that a spring 17 moves it and the stud 9 to actuate the valve 3 to reverse the direction of rotation of the motor. The spindle 17 is then rotated back until a pawl 30, pivoted on an indexing hub 19 on the spindle, engages a stop 32 thus locating the groove 24 in alignment with a lip 28 on the sleeve 25.
Patent GB-1005806-A (GB)
Title: Improvements in and relating to the lubrication of pneumatic apparatus
IPC: F16N7/34
Filed: 1962-07-06
Abstract: 1,005,806. Lubrication. MASTER PNEUMATIC Inc. July 6, 1962 [April 30, 1962], No. 26008/62. Heading F2A. An air-line lubricator comprises a passageway 14 for connection to a conduit 20, 22 (Fig. 5) for pressure air, a lubricant container 28, with which a bypass communicates, connected at upstream and downstream locations into the passageway 14, and a wick 96 having portions 98 and 112, the portion 98 having lubricant delivered thereto at a rate greater than the capillarity rate between the portions by an aspirator tube 86, responsive to by-pass airflow, a constriction 110 (Fig. 7) being included around the portion 112 through which air flows at a relatively high velocity to remove lubricant therefrom to pass it into the passageway 14. The bypass adjacent the portion 98 is partly formed by the container interior and within it is a shroud 92, and includes the orifice 84 of the tube 86. In the passageway 14 is a valve 70, 71 biased to be closed to obstruct airflow therethrough between the locations at a relatively slow rate, but responsive to increased rate of flow to pass air. The valve 70, 71 includes an apertured member 72 slidable on a stud 64 (Figs. 1 and 5) toward and away from a passageway seat 70 and at an acute angle to the passageway 14, the stud 64 having a port 80. The valve is biased to close by means of a coil spring 76 around the stud 64 compressed against the member 72, around which is also a sleeve 78 acting as a stop to restrain opening of the member 72. The constriction 110 is in a passageway 106, open at one end 108 to the container interior 95 and leading into a tube 118 with an end 116 in the passageway 14 at an inclination such that an air scoop so formed resists lubricant-delivery from the end 116. A tube 128 adjacent tube 118 has a like inclined end 126 by the end 116 and an end 124 in the container interior 95 adjacent which is an adjustable metering device 132 with ports, such as 140, of different sizes which are selectively registrable with the tube 128, so as to proportion the rates of flow in the tubes 118, 128. Between the end 124 and the container interior 95 is a baffle 150.
Patent GB-843094-A (GB)
Title: Improvements in or relating to valves for fluids
IPC: F16K41/12
Filed: 1955-09-12
Abstract: 843,094. Valves. LEE, H. Dec. 11, 1956 [Sept. 12, 1955], No. 26076/55. Class 135. In a valve for use with gases comprising a frusto-conical casing 1 with an inlet and an outlet one of which has an extension 3 projecting axially of the casing, a diaphragm 9 of greater diameter than the open end of the casing a projection 10 on the diaphragm adapted to seat on the open end of the extension, and means for operating the diaphragm, the diaphragm is clamped in gas-tight manner on the valve casing, by means of a ring 5 having the same internal taper as the external taper of the casing and retained by the open end of the casing, the ring being connected to a corresponding flange 8 on a cover surrounding the diaphragm and its actuating means. The extension 3 is supported by an axially disposed pillar 4. The diaphragm may be made of silicone rubber, a fluorocarbon rubber or polytetrafluoroethylene and the casing of glass. The ring 5 has an annular recess 6 to receive a gasket 7 having an internal diameter slightly less than the external diameter of the casing. The diaphragm as shown is operated by a screwed spindle 11 actuated by a wheel 12, and the ring 5 and flange 8 are connected by nuts 14 and bolts 13.
Patent GB-785087-A (GB)
Title: Magnetic amplifier modulator
IPC: H03F9/02
Filed: 1955-09-13
Abstract: 785,087. Magnetic amplifiers. BENDIX AVIATION CORPORATION. Sept. 13, 1955 [Sept. 30, 1954], No. 26212/55. Class 40 (4). A balanced magnetic amplifier has two cores I and II each of which carries an A.C. excited winding 22 and a common output winding 24 connected to a load 36, and has an input signal Es applied directly to the output winding. The amplifier also has a bias winding 23 which causes the cores to work near the knee of their magnetization curves to prevent frequency doubling, and also has a common balance winding 21, the current through which can be adjusted by a resistance 26 to correct for dissimilarities between the cores and mis-matching to give zero output for a zero input. The load 36 is coupled to the output winding 24 by means of a matching transformer T1. With no input, windings 22 produce equal and opposite voltages in the output winding 24. With a D.C. signal applied to winding 24, however, one core will saturate before the other as the biasing flux is aided in one core and diminished in the other. An A.C. signal modulated by Es therefore appears across the load.
Patent GB-958859-A (GB)
Title: Improvements relating to the treatment of aromatic extracts
Inventor: SCHNEIDER NORBERT
IPC: C10G71/00
Filed: 1962-07-09
Abstract: An extract rich in aromatics, obtained by the selective solvent extraction of a mineral oil, for example with furfural or sulphur dioxide, is mixed with a solvent selective for aromatics and subjected to a low temperature, e.g. below - 20 DEG  C., fractional crystallization step to recover a fraction consisting substantially exclusively of aromatics and one or more fractions containing naphthenes and isoparaffins.  The recovered fractions may be subjected to a hot treatment with fuller's earth, or to a hydrogenation treatment.  Suitable solvents include acetone, furfural, and low molecular weight alcohols, with or without water in an amount up to 5%, or mixtures thereof.  The initial feedstock may have been distilled to remove bituminous material.
Patent GB-378677-A (GB)
Title: Improvements in or relating to filter presses
IPC: B01D25/19
Filed: 1931-09-19
Abstract: 378,677. Filter-presses. BOULTON, Ltd., W., Navigation Road, Burslem, and HALL, H. H., 18, Withies Road, Trent Vale, both in Stoke-on-Trent. Sept. 19, 1931, No. 26252. [Class 46.] In a filter-press of the type in which the moving end-plate d is provided with rollers e travelling on the side rails b of the press, sprocket wheels g are attached to the rollers so that the latter can be driven by chains h from a shaft j, mounted, as shown in Fig. 1, on the endplate d or, as shown in Fig. 3, on the end crosshead m of the press. In the last-mentioned arrangement, the chains are kept taut by weighted or spring-pressed jockey pulleys n, preferably carried by pivoted levers o. The shaft j may be turned manually or by power.
Patent GB-364648-A (GB)
Title: Improvements in and relating to the stacking or the arranging of biscuits or the like
IPC: B65B23/12
Filed: 1930-09-03
Abstract: 364,648. Arranging biscuits &c. for packeting. PATERSON, J. C., BAKER, G. R., and BAKER PERKINS, Ltd., Willesden Works, Willesden, London. Sept. 3, 1930, No. 26311. [Class 94 (i).] A device for arranging and stacking biscuits and the like for packeting comprises a feeding web 22, upon which the biscuits are placed haphazard, and which feeds them over a fixed bar 23 inclined downwardly towards a sloping table 24 on which are mounted a number of guide bars 26. The bars increase in depth in the direction of the feed and the table is transversely oscillated by linkage 33 .. 37 a distance preferably equal to that between the centres of adjacent gangways. The biscuits fall into the gangways, and arrive above an upwardly disposed conveyer 25 above which guide bars 142, corresponding to the bars 26, are disposed. The bars 142, 26 fit with a loose tenon and mortise attachment so that the former partake of the motion of the latter. The conveyer feeds the biscuits over a crest and on to a downwardly inclined plate 38, Fig. 5, down which they slide to a stacking wheel 43, having radial arms 44 curved on the forward faces, which receive the biscuits and feed them forward in a vertical stacked formation between fixed guides 49, which maintain the files separate until they arrive on a delivery conveyer passing over a plate which is agitated to cause uniform settling down. The bars 49 engage the bars 142, so that the latter oscillate about their forward ends. Provision is made for varying the distance between the bars to accommodate different sizes of biscuits, the plates carrying the sets 26, 49 being replacable by others carrying bars differently spaced. The forward ends of bars engaging the bars 49 and forming an extension thereof are engaged in slots in a rod which can be rotated to present series of differently spaced slots. In a modified form of machine, one conveyer is arranged to replace the conveyers 22, 25, and, in another form, the bars 26 are not fixed to the table 24 and are caused to have a pivotal movement about their forward ends.
Patent GB-170283-A (GB)
Title: Methods and devices for balancing rotating bodies and automatically setting the counterbalancing masses into the plane of the unbalancing force
IPC: G01M1/04
Filed: 1921-10-06
Abstract: 170,283. Schenck Eisengiesserei und Maschinenfabrik Darmstadt Ges., C., and Heymann, H. Oct. 12, 1920, [Convention date]. Testing balance of rotary apparatus. - In a method wherein the balancing mass is automatically moved into the radial plane of the unbalanced force, the balancing mass is carried round by frictional engagement with the body to be balanced, this engagement being interrupted when the critical speed is exceeded so that the freely rotatable balancing mass moves automatically into the radial plane of the unbalanced force, whereupon the balancing mass is recoupled to the body to be balanced. A sleeve 10 is fixed to the shaft 12 of the body to be balanced and is fitted at the ends with spring plates 13, 14 which press on discs 15, 16 splined and loose respectively on the sleeve, so as to grip between them a disc 18 loose on the sleeve. Mounted in the disc 18 is a mass 21 which is free to move radially relatively to the disc. The mass 21 is provided with a screw 27 the point of which engages with the helical groove 26 in a spindle 25 upon which the mass is mounted. A pointer attached to the part 21 works over a scale on the disc 18. Mounted on the inner end of the spindle 25 is a conical roller 30 adapted to engage a similar surface on the disc 16. In use, the device is mounted on the body to be balanced, and the body is run up to and beyond the critical speed. A wedge 34 is then applied so as to free the disc 18, which thereupon assumes a position in which the mass 21 is in the same radial plane and is opposed to the unbalanced force. When this has taken place, the wedge is released, and the disc 18 again gripped between the discs 15, 16. The speed is then reduced so that the body passes slowly through the region of the critical speed, and at the same time, a brake 37 is applied to the disc 16 at intervals. Every time the brake is applied the screw spindle 25 rotates and the mass 21 is thus moved radially until the unbalanced force is balanced, which point is recognised by the absence of vibration indicated when the hand is placed on the body or bv a vibration meter. The discs and sleeve may be made in parts to facilitate assembly, and preferably two balancing devices are mounted on the body to be balanced.
Patent GB-650818-A (GB)
Title: Process and apparatus in the production of aluminium and other powder with leaf structure or needle form
IPC: B01D46/02
Filed: 1947-10-01
Abstract: 650,818. Porous concrete. CARLFORS AKTIEBOLAG. Oct. 1, 1947, No. 26487. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 1, 1947.] [Class 70] [Also in Group II] Aluminium powder classified by a centrifugal process (see Group II), has a larger specific surface and a greater length-thickness ratio than powder sifted by normal methods. The graph shows hydrogen generated per minute by aluminium powder during the manufacture of porous concrete, the curve A representing powder sifted in the normal manner and the curve B representing powder classified by the centrifugal process.