baber/WOPTO huggingface dataset:
Patent GB-795475-A (GB)
Title: Selenium rectifier
IPC: H01L21/108
Filed: 1955-06-15
Abstract: 795,475. Selenium rectifiers. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd., and FRENCH, E. L. May 4, 1956 [June 15, 1955; Oct. 6, 1955], Nos. 17188/55 and 28556/55. Class 37. In a selenium rectifier an artificial barrier consisting of or comprising a solid ethoxyline resin is provided between the Se and the counter electrode. The resin may be used alone, mixed with a diluent such as polyvinyl chloride which reduces the effect of the resin on the reverse resistance, or with a layer of a material such as D glucose adjacent the resin. The resin layer may be provided by dipping a base plate provided with a crystalline Se layer for 1 minute in a 6 per cent by weight solution of ethoxyline resin in a mixture of 75 per cent xylene and 25 per cent benzyl alcohol. The plate is then withdrawn slowly, dried by radiant heat, provided with a counter electrode and afterwards electroformed. Other suitable solvents are listed in the Specification. The characteristics of the rectifier may be stabilized by curing the resin. The following curing agents may be used: low molecular weight linear polyarnides containing reactive amino groups, such as formed by reacting a polyfunctional aliphatic amine and a dimeric fatty acid; a monofunctional amine, such as piperidine, which reacts with the terminal epoxy groups of the ethoxyline resin to form an amino alcohol; a polyfunctional amine which reacts with the terminal epoxy groups to produce a cross-linked structure such as triethylene tetramine; or a linear polyhydroxy compound which reacts by etherification of the terminal epoxy groups of the ethoxyline resin, such as a linear polyhydric alcohol, e.g. sorbitol. The curing agent may be mixed with the resin by including it in the dipping solution, by dipping the plate in a solution of the curing agent before application of the resin or by dipping the ethoxyline coated plate in such a solution. Where the agent is an amine it may alternatively be applied as a vapour before application of the counter electrode. A discrete layer of D glucose, sorbitol, other polyhydric alcohols or mixtures thereof, may be used either between the resin layer and the Se or between the Se and the counter electrode. Such a layer, e.g. of D glucose, may be applied by dipping the plate in a 1 per cent solution of D glucose in water containing the wetting agent gelatine. The completed rectifiers are electroformed and if necessary heated thereafter to complete the curing of the resin. Specification 794,516 is referred to.
Patent GB-573520-A (GB)
Title: Slide rule for the computation of income tax on earned incomes
IPC: G06G1/00
Filed: 1943-10-20
Abstract: 573,520. Computing-apparatus. CARR, A. B. Oct. 20, 1943, No. 17253. [Class 106 (i)] A device for the computation of income-tax on the pay-as-you-earn system comprises a fixed scale A showing the gross wages for the week. An index u on a slide B is positioned opposite a fixed scale F according to the code number of allowances. A scale C on the slide B, graduated to the right in black and varying according to the two rates of taxation, then shows the amount of tax to be paid opposite the employee's gross wage. The scale B is graduated to the left in red to show the rebate, if permissible, to be paid to the employee. A scale D enables adjustments to be made when overlap occurs between the two rates of tax. Scales G, H, J enable adjustments to be made according to the tax and earnings of the several previous weeks, only part of the scales being shown.
Patent GB-182123-A (GB)
Title: Improvements in turrets for lathes with hollow spindles
IPC: B23B3/18
Filed: 1922-06-22
Abstract: 182,123. A.C.M.A., Soc. Ateliers de Construction de Machines Automatiques. June 27, 1921, [Convention date]. Lathes. - The turret of a vertical hollow-spindle lathe is mounted at the lower extremity of a vertical shaft which receives a combined movement of vertical sliding and rotation in opposite directions under the control of cams, the rotation in one direction being intermittent. A hollow spindle 2 carries a chuck 3 for rotating the barstock a from which nipples are produced, and is provided with fast and loose pulleys 4, 5 for a belt drive, the rotation being stopped when the chuck is disengaged for feeding by a fork 6, bell-crank 7 and fluid pressure cylinder 27. The bar-stock is guided by a tube 55 and is fed by gravity, assisted by a fluid pressure cylinder (not shown), against a stop 53 on the turret 8. The turret, Fig. 4, carries a turning-tool 18 for shaping the exterior of the nipple, two stationary drills 19, 20, of different diameters, a work-guide 42, and a cutting-off tool 21, and is mounted on a. rod 9, Fig. 1, which receives a vertical movement for feeding, and for indexing the recesses 22 against a stop 23 by means of a cam 12 and roller 11, the shocks due to dropping to the lowest position being absorbed by springs 54. The rod is rotated between the indexed positions by a cam 17 acting on a pin 16<a> on the lever 16 which actuates a lever 15 and crank 14 on the rod. The return movement is given by a piston in constant communication with a Buid pressure supply. Chucks. - The chuck, Fig. 4, comprises a hollow sleeve 34 provided with a split collet 35 held in engagement with the coned body 3 by a spring 36, Fig. 1, release being effected by a fluidpressure operated lever 32 and collar 33 secured to the sleeve. A cam 41 actuates an oscillating valve for controlling the fluid pressure cylinders, through a lever 40 and link 39. The levers 40 and 7 may be hand operated. The cam shaft 13 is independently driven by a chain and sprocketwheel 24 through a hand-operated clutch 25.
Patent GB-658915-A (GB)
Title: Improvements in radio reflectors
IPC: H01Q15/20
Filed: 1949-06-30
Abstract: 658,915. Visible signalling apparatus. STEMP, V. P., and BUCKINGHAM, J. June 30, 1949, No. 17307. [Class 118 (ii)] [Also in Group XL (c)] A reflector of radio waves which may also serve as a weather or navigational ball such as is hoisted to the mast of a ship for navigational purposes, comprises a flat metal plate 1 to which are hinged on one or both surfaces thereof along two perpendicular axes additional metal plates which normally lie flat close to the plate 1, as shown in Fig. 1, but which may be erected to occupy positions normal thereto and locked in these positions to provide a structure as shown in Fig. 6 having a substantially circular silhouette from all directions. When erecting the structure, the plates 2, 3, 4, and 5 are lifted in succession, the slots 8 in the flanges attached to plates 3, 4, and 5 engaging with pins projecting from the rear surfaces of plates 2, 3, and 4, respectively. The assembly is then locked in this position by rotating locking bar 10 through 180 degrees to the position shown in Fig. 6 and securing it in this position by a pen 12. The bar 10 also comprises a lifting eye for supporting the structure. The solid metal plates shown may be replaced by mesh sheets.
Patent GB-407907-A (GB)
Title: Moulded solid ornaments for decoration of moulded articles and a process for the manufacture of mottled articles, either moulded or cast, by means of said ornaments
IPC: B44C3/04
Filed: 1932-06-20
Abstract: Solid ornaments for the decoration of moulded or cast articles are made by moulds into which the patterns are deeply engraved, the recesses being filled with moulding powder and then covered with a sheet of metal, tinfoil, paste-board, paper &c. on which has been spread a layer of adhesive.  The powder in the recesses of the mould is solidified by pressure and heat to form the ornaments, which adhere to the metal &c. sheet when it is removed from the mould.  The ornaments may be removed from the sheet, or the sheet may form the base of the mould for the ornamental article.  After moulding the sheet may be removed or may form part of the finished article.
Patent GB-676370-A (GB)
Title: Recovery of procaine
Filed: 1949-07-01
Abstract: Procaine is separated from crude dilute aqueous solutions thereof by contacting the solution with activated carbon at pH below 8 (e.g. 2), separating the solution and washing the carbon with an acid of normality not greater than 2; procaine is recovered from the solution and the washings by increase of pH, e.g. to 10-12, when procaine base is precipitated, and may be separated in the solid form or extracted with a water-immiscible organic solvent, e.g. butyl acetate, and concentrated to effect precipitation or crystallization.  The amount of carbon used is preferably about 1 per cent by weight of the solution, and may be in the form of a static mass, e.g. as a column. The acid used for washing may be hydrochloric or sulphuric; phosphoric is less suitable.  The subsequent increase of pH may be effected with sodium hydroxide or other alkali.  In a modification the solution, before or after the carbon treatment, is adjusted to pH greater than 8 and extracted with a water-immiscible solvent, e.g. amyl or butyl acetate, chloroform or ether; the procaine is then re-extracted with water at a pH below 6.  The starting material may be the solution obtained in the production of sodium penicillin as in Specification 655,649.  Examples are given of the various methods of carrying out the process of the invention. The filtrate and washings (containing procaine) may be used directly for the production of procaine penicillin.
Patent GB-675155-A (GB)
Title: Washing apparatus
IPC: D06F15/00
Filed: 1950-07-12
Abstract: 675,155. Washing-machines. FONJALLAZ, R. July 12, 1950 [July 13, 1949; June 7, 1950], No. 17492/50. Class 138 (ii). Washing apparatus comprises a bell 14 secured to the lower end of an operating rod 21, the upper end of which is connected to supporting means 2 by a spring 1, an oscillating weight 8 being slidably movable relative to the rod 21 and adapted to cause increased penetration of the bell 14 into the wash and to assist the action of the spring 1 on the return stroke. A handle 9 is rigid with the tube 21 which is telescopically slidable against the action of springs 25 and 27, relative to a rod 18 rigid with the bell 14. The weight 8 is slidable on the tube 21 against the action of a spring 28, its upper limit of movement being determined by a collar 32 secured by a wing nut 33. The spring 1 is secured to a rod 22 adjustably clamped at 24 to the tube 21. Springs 29, 30, 31, cushion extremes of movement. In the modification shown in Fig. 2, the upper end of the spring 1 is connected via a cable 12 and pulley 13 to the armature 11 of a solenoid 10. A switch in the circuit of the solenoid may be attached to the handle 9. Alternatively the solenoid may be arranged to operate directly on either the handle 9 or the inertia weight 8.
Patent GB-867684-A (GB)
Title: Improved method and means for guiding textile or like materials through beds of fluidised solid particles
Inventor: CHIPALKATTI VASANT BHIMRAO
IPC: B65H23/00
Filed: 1958-06-02
Abstract: 867,684. Stuffing-box substitutes. SHRI RAM INSTITUTE FOR INDUSTRIAL RESEARCH. Jan. 2, 1958, No. 17522/58. Class 122 (5). The clearance between the shaft 2 of a roller 1, which is located in a fluidized bed of solid particles for guiding textile or like materials through the bed for treating purposes, and the shaft bearings 3 is sealed by means of fine jets of the fluidizing medium directed into the clearance. The roller is supported in its bearings in a chamber containing the solid materials and into which the fluidizing medium is introduced, and the fluidizing medium for sealing purposes is admitted to each bearing, at a higher pressure than that of the fluid in the chamber, through ports 6, annular space 8 and inclined passages 9. In a modification, the shaft is hollow and the sealing medium is directed through it and metered ports formed in its wall.
Patent GB-334594-A (GB)
Title: Improvements in constructional models of ships as toys or educational devices
IPC: G09B25/02
Filed: 1929-06-07
Abstract: 334,594. Bonsor, N. R. P. June 7, 1929. Ships; building-blocks and the like.-A model ship comprises a plurality of sections 1, 2, 3, connected by spigots 4 to form the hull, a plurality of sections 7 - - 10 forming the superstructure, and spigots 11 connecting the superstructure to the hull whereby the hull sections are interlocked. The upper surfaces of the hull sections are provided with equally spaced holes 6 to receive the spigots of the superstructure and deck fittings. The funnels are mounted on the upper surface of the superstructure and are each formed of a number of differently coloured sections 12 connected by a spigot 13. Hull sections of various shapes are provided to enable the construction of ships of different types. In floating models, the hull is hollowed out, weighted, and fitted with a clockwork, electric or other engine.
Patent GB-1466733-A (GB)
Title: High pressure lip seal
IPC: F16J15/32
Filed: 1974-04-22
Abstract: 1466733 Shaft seals CRANE PACKING CO 22 April 1974 17539/74 Heading F2B In order to maintain knife-edge sealing contact between ring 15 and shaft (12), however great the fluid pressure, surface 24 is sloped to provide a force to balance that which the fluid  pressure exerts on surface 22. Ring 15 may be of elastomeric material or P.T.F.E. Grease consisting of powdered P.T.F.E. and a silicone is carried in groove 26.
Patent GB-1022982-A (GB)
Title: Anode assembly
Inventor: ATHERTON KENNETH OWEN
IPC: C25B11/14
Filed: 1963-05-03
Abstract: <PICT:1022982/C6-C7/1> An anode assembly comprises a graphite anode plate 1, and a metal conductor 2, terminating in a bore in said plate and making intimate electrical contact with the walls of said bore, the graphite being impregnated with a wax 3, comprising a hydrocarbon or a chlorinated hydrocarbon which is solid at the working temperature of the anode, to a depth of at least 1/8 inch around the bore.  The join between the metal conductor and the graphite may be made by a force fit, a screw thread, or by soldering.
Patent GB-421476-A (GB)
Title: Improvements in or relating to thermionic valve circuit arrangements
IPC: H03F1/08
Filed: 1933-06-21
Abstract: 421,476. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Telefunken Ges. f³r Drahtlose Telegraphie; 12, Hallesches Ufer, Berlin) June 21, 1933, No. 17694. [Classes 39 (i) and 40 (v)] In a valve amplifier, rectifier, or oscillator of the kind described in Specification 418,132, the anode voltage, and the biassing of the electron density and velocity regulating grids, are so chosen that the valve operates on a falling portion of the anode-current curve, as for instance at the point W, Fig. 4b, where the density is at a maximum. As shown in Fig. 8, the input signals are applied to the control grid G, the density and velocity regulating grids G1, G2 being biassed from the H.T. supply B. The amplified signals are rectified by a similar valve V2. An additional electrode, which acts as a screening grid, may be inserted immediately before the anode A. The invention is applicable to valves of the type specified and containing rarefied gas. Specification 420,911 also is referred to.
Patent GB-177484-A (GB)
IPC: H01H23/14
Abstract: 177,484. Alkan, R. March 19, 1921, [Convention dateAddition to 149,940. Drawings to Specification. Switches, quick-action; handles. - In the tumbler switch described in the parent Specification, having a spiral spring bearing between projections on the operating-tumbler lever and the contact member, the metal tumbler lever is replaced by a lever wholly of insulating material, or by a lever encased with insulating material.
Patent GB-750421-A (GB)
Title: Ducting for high temperature fluids
Inventor: WHITEHEAD LESLIE THOMAS
IPC: F01D17/02
Filed: 1953-06-26
Abstract: 750,421. Jet pipes. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. June 15. 1954 [June 26, 1953], No. 17769/53. Class 110(3) [Also in Group XXVIII] A conical member 14 is supported inside a gas turbine exhaust duct 17 by pairs of crossed rods 15, 16 enclosed in streamlined fairings 21 attached to the member 14 and having a clearance at the wall of the duct to allow for expansion. Each rod passes through a bush 20 on the intermediate sections 8 of bands 18, 19, the band 18 being disposed externally of the duct 17, and the band 19 being located internally of the member 14. The intermediate sections 8 of the bands terminate in bellows sections 7 secured to the walls of the duct 17 and the member 14, those walls being apertured to provide a clearance around the rods so that the bands are free to deflect longitudinally to accommodate differential expansion between the duct and member. Specification 582,978 is referred to.
Patent GB-460757-A (GB)
Title: Improvements in or relating to advertising devices
IPC: G09F11/23
Filed: 1936-06-30
Abstract: 460,757. Moving signs. ROHDEN, C. L. June 30, 1936, No. 18071. Convention date, July 4, 1935. [Class 3 (i)] An advertising device comprises a transparent glass tube c bent to any desired curved conformation and housing a twisted strip b of aluminium &c. The strip is attached at one end to a motor a, and its outer end terminates in a plate p carrying goods. To negotiate sharp curves in the tube c the strip may be built up at such parts of short sections pivoted together, or bevel wheels &c. may be introduced. The twist in the strip may take the form of a helix.
Patent GB-1209128-A (GB)
Title: A method of winding a part of an electrical machine
IPC: H02K15/06
Filed: 1969-04-09
Abstract: 1,209,128. Making dynamo-electric machines. BROWN, BOVERI & CO. Ltd. 9 April, 1969 [11 April, 1968], No. 18095/69. Heading B3A. A method of winding a stator or rotor of an electrical machine having partially closed slots 1 includes inserting insulated conductors into each slot, at least the outer conductors being insulated by a sheath or liner 5 to form a coil 3, which projects through the slot mouth, and pressing the coil 3 into the slot so that the conductors are retained by lips Id, le of the slot mouth. Coils 2, 3, which are provided with insulated liners 4, 5, are compressed by an axially displaceable tool 7. At its front portion the tool is formed with grooves (7a), which, engage the projecting portions of the coils 3, Fig. 4 (not shown), and at its rear portion, the tool is formed with fingers 7b, which enter the slots 1. Where several bundles of conductors are inserted into each slot, separate sheathing of each can be dispensed with, Fig. 10 (not shown). The tool 7 may be replaced by a radially acting expansion mandrel having rams (19) which press the coils 2, 3 in the slots 1, Figs. 11, 12 (not shown).
Patent GB-933326-A (GB)
Title: Gang harrow
IPC: A01B23/04
Filed: 1961-05-18
Abstract: 933,326. Agricultural implements. I. W. RICHARDSON. May 18, 1961 [July 22, 1960], No. 18106/61. Class 6(1). A harrow comprises blades 27 mounted on a frame 24 attached to a main frame 13 by means of a resiliently mounted pivot bar 34 and stabilizing rods 42. The pivot bar 34 is fixed to the frame 24 and is able to slide along a bolt 33 against the pressure of a spring 37. The stabilizing rods 42 are pivoted at 44 and protrude through openings in the frame 24. As shown the blades 27 of the front frame are twisted in the opposite direction to the blades 27 of the rear frame. The frames 24 may be replaced by frames each carrying a set of discs,
Patent GB-1468036-A (GB)
Title: Actuable input device
IPC: H01L41/113
Filed: 1974-04-25
Abstract: 1468036 Piezoelectric crystals &c TORAY INDUSTRIES Inc 25 April 1974 [15 Oct 1973] 18205/74 Heading H1E [Also in Divisions G4 and H2] A piezoelectric voltage generator comprises an electric piezoelectric polymer film and two sandwiching layer electrodes, the film being secured to a support but being displaceable perpendicular to its surface to extend or contract the film. In the key arrangement shown, a button 1, a bar 2 and a rubber sheet 2a are depressed to deflect a piezoelectric polymer film 4 stretched over a hole 5a in a printed circuit board 5 downwards against a rubber sheet 7a on a base-plate 7, and a voltage is produced between two electrodes 4a, 4b. Other arrangements, Division H2, are described with reference to Figs. 3-11 (not shown). Polymer materials may be polyvinylidene fluoride, polyvinyl fluoride, acrylonitrile, polyvinyl chloride, polyvinylidene chloride, polyundecaneamide (nylon 11), poly - α - benzyl - L(or D) - glutamate, poly - α- methyl-L(or D)-glutamate. A biaxially elongated polyvinylidene fluoride of 50 Ám is poled with a D.C. field of 2 kV. for two hours at 130C. to produce a desired piezoelectric characteristic.
Patent GB-241316-A (GB)
Title: Improvements in mechanical relays for electric switch gear and other purposes
IPC: H01H71/50
Filed: 1924-07-30
Abstract: 241,316. British Thomson-Houston Co., Ltd., and Heath, H. C. July 30, 1924. Toggles; levers, locking.-A mechanical relay, particularly for operating the trip mechanism of an electric circuit-breaker, comprises a striking lever 10 pivoted at 15 and carrying the operating roller 11, and a toggle of the doubled-back type consisting of one link 19 having a loose pivot at 18 on the lever 10, and a second link 22 pivoted at 21 to the first link. The toggle links are maintained in the overset condition shown by the weighted end 23 of the second link 22 bearing against the release members 24 which, in the case of a circuit-breaker, is caused to rock, on overload, as shown in Fig. 4. The doubled-back end of the second link 22 is pivoted to a fixed pivot 17 on the framework and, in the overset position, Fig. 3, the pivot pin 17 is received in a slot in the first link 19 of the toggle. A spring 14 extends between the pivot pin 17 and the remote end of the striking lever and at this end a resetting lever 27 slotted to pass the pivot pin 17 is connected.
Patent GB-722557-A (GB)
Title: Improvements in or relating to electronic indicator circuits
Inventor: ARNOLD DAVID EUGENE
IPC: G01S7/04
Filed: 1952-07-18
Abstract: 722,557. Pulse radar. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. July 18, 1952, No. 18279/52. Class 40 (7). In a pulse radar system having a directional aerial rotating in azimuth, the echo signals are applied in parallel to four thyratrons 11, 13, 15, 17 each controlling a respective indicator 49, the thyratrons being energized sequentially for equal periods by a switch synchronized with the aerial rotation so that an indication is given of the quadrant in which echo signals are being received. As described, each indicator comprises a neon tube but it may comprise means for producing an audible signal of distinctive frequency. As shown, each neon tube 49 is connected in series with a parallel R.C. circuit 51, 53 across the load resistor 25 of a normally non-conductive thyratron, the positive video output from receiver 55 being applied to the grid of the thyratron and the anodes of the thyratrons being connected sequentially to the H.T. line 29 by means of switches 27 ganged to the rotating aerial 63. When a pulse is received by an energized thyratron, the thyratron fires and the resultant potential drop across the load resistance 25 causes the associated neon 49 to strike. In order to prevent operation of a thyratron by the positive peaks of spurious A.C. video signals, the accompanying negative peaks are rectified by diode 67, smoothed by circuit 69 and applied as negative bias to the grids of the thyratrons.
Patent GB-179462-A (GB)
Title: Improvements in pneumatic tyre covers
IPC: B60C9/20
Filed: 1921-07-07
Abstract: 179,462. Caddy, S. C. July 7, 1921. Jackets and covers.-A retreaded tyre is formed by securing to the old foundation 1 a reinforcing-strip which consists of wire ribbons or flattened coiled springs 3 embedded in rubber 4 and fitted between strips 5, 6 of textile fabric. The rubber tread 2 is superimposed and the tyre vulcanized. Specification 3854/11 is referred to.