baber/WOPTO huggingface dataset:
Patent GB-286452-A (GB)
Title: Improvements relating to machines for separating coal and for other analogous purposes
IPC: B07B13/00
Filed: 1927-03-01
Abstract: 286,452. Barker, W. H. March 1, 1927. Sorting on interrupted shoots. -In machines for separating coal &c. of the kind in which the materials are caused to slide down an inclined shoot provided with a series of gaps, the feed of the material from a shoot a to the upper plate b of the separating shoot is controlled by a roller c or endless moving band arranged above the plate b so as to ensure a uniform drop of the material. The surface of the roller or band may be of metal, hard woven, felted, or other suitable fabric or rubber. Preferably, the supply of material to the lower part of the shoot a is controlled by a star wheel m working in a recess l, or by a reciprocating jigger. In the apparatus described, provision is made for successive separating operations, the middlings passing to the shoot h being fed by the roller &c. i on to the plate j. The plates b and j are preferably made of glass, and jets of air from nozzles k are used to facilitate the operation.
Patent GB-546946-A (GB)
Title: Improvements in electric transformers
IPC: H01F27/26
Filed: 1941-05-03
Abstract: 546,946. Transformers. CUTLER, C., FLUX, R. W., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. May 3, 1941, No. 5790. [Class 38 (ii)] Small power transformers of the aircooled or compoundfilled type are mounted in a pre-formed metallic sheath 1, the core lam. inations 2 being clamped between frame members 9, 10 one of which is fixed to the sheath or rests against abutments 12 fixed within the sheath while the other is forced in after the transformer and is secured by cross-pins 13, resilient packing 11 being interposed between the laminations and the frame member. The latter may have extensions 10b bent to form feet and carrying a closure plate 18, perforated for air cooling, or provided with a filter cap for compound filling. A lid 15 which may be spaced away from the sheath for ventilation is secured to strip members 14 which also carry a terminal plate 8.
Patent GB-1444213-A (GB)
Title: Perlite acetylene cylinder filler composition
IPC: C10L3/02
Filed: 1975-02-11
Abstract: 1444213 Absorbent compositions for gas vessels COYNE CYLINDER CO 11 Feb 1975 [26 April 1974] 5790/75 Heading F4P An acetylene container filler composition comprises lime, perlite, fibrous asbestos, and water, substantially all of the perlite being of a particle size to pass through a 16 mesh screen. A majority of the perlite preferably passes through a 100 mesh screen and even more desirably through a 325 mesh screen. The composition also preferably includes silica flour and/  or diatomaceous earth. A preferred example gives a composition as follows: lime 6À3%; perlite 2À4%; diatomaceous earth 7À1%; silica flour 2À4%; fibrous asbestos 4À7%; water 77À1%. The method of forming the composition is also described.
Patent GB-490592-A (GB)
Title: Improvements in or relating to tilting mechanisms for motion picture projectors and other apparatus
IPC: G03B15/08
Filed: 1938-02-24
Abstract: 490,592. Stand heads. KODAK, Ltd. Feb. 24, 1938, No. 5864. Convention date, March 5, 1937. [Class 52 (v)] [Also in Group XX] Tilting mechanism for a kinematograph projector &c. comprises a rack member 17 which is mounted on a screw-threaded spindle 9 in a base member 5 and engages an arcuate toothed segment 23 carried by the projector etc.; the rack is caused to slide by rotation of the spindle and turns the projector &c. about the pivot 21. As shown, the rack 17 comprises a section of a rod which has been bored, tapped, &c., and is flattened so as to engage within a slot 8 formed in the top of a hollow base 5. The spindle 9 carries a hand wheel 14 and is held in place by a shoulder 15 and a collar 12. The segment 23 is secured to an arm 20 by pins 24, and the arm 20 is connected to a post 6 extending from the base by means of the pivot bolt 21 and spring washers 22. In a modification, the base is solid and has a recess to house the rack member.
Patent GB-547553-A (GB)
Title: Improvements in telecommunication exchange systems
IPC: H04Q3/52
Filed: 1940-04-02
Abstract: 547,553. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. (Western Electric Co., Inc.). April 2, 1940, No. 5911. [Class 40 (iv)] In a system using a cathode-ray tube as a selector the beam is held in a deflected position by means of a circuit over itself. The invention is described with reference to a ten-line exchange in which each subscriber has a cathode ray selector. Normally the cathode beam impinges on the home terminal 23. When the dial is operated the bias on the grid of a valve 18 is intermittently reduced and the impulses are passed on to a further valve 19. The first impulse since it increases the current in valve 18 increases the voltage drop in a resistance 35, so modifies the voltage of the deflector plates to cause the beam to move to the next target. Here it completes the anode circuit of valve 19 via resistance 35 transformer primary 52 and a group of resistances 16. The resultant voltage drop in 35 is such as to hold the beam in its new position. The kick produced in the dial circuit by the transformer 20 is such as to neutralize the originating impulse. Subsequent impulses cause the deflection of the beam over the terminals in succession, the beam being held after the termination of each impulse because its movement has cut out one of the resistances 16 and so increased the steady anode current of valve 19. When the beam stops, a direct current calling circuit and subsequently a speech circuit exist over the beam shown and that of the wanted party in its home position. Filters 15 keep the speech currents out of the control circuits. When the calling party hangs up, the anode circuit of 19 is broken and the beam returns to its normal position.
Patent GB-692620-A (GB)
Title: An improved manufacture of thin sheets or plates of heat-treated material suitable for the dielectrics of capacitors and for other purposes
Inventor: WALKER HERBERT
IPC: C04B35/468
Filed: 1950-03-09
Abstract: A thin cellulose paper sheet is loaded with a high proportion of powdered titania, magnesium or barium titanate, heated first under oxidizing conditions to burn off the cellulose, and then at a higher temperature to sinter the powder and form a sheet.ALSO:A thin cellulose paper sheet is loaded with a high proportion of a powder which can be softened and sintered at a temperature above that at which cellulose is destroyed and is heated first under oxidizing condition to burn off the cellulose and then at a higher temperature to sinter the powder and form the sheet. Temporary binders e.g. starch, dextrin or gelatine may be added to the cellulose pulp, and fluxes may be added to aid sintering. Specified powders are magnesium and barium titanate, titania, glass (alone or mixed with dielectric materials) powdered metals, silicon carbide and a mixture of carbon, silica and/or silicates p  from which resistors are obtained. Preferably the powder exceeds 90 per cent. and in examples is 98 per cent. cellulose 1 and bentonite (as a plasticizer) 1 per cent.
Patent GB-553628-A (GB)
Title: Improvements in mixing or agitating devices
IPC: B03B11/00
Filed: 1942-05-02
Abstract: 553,628. Mixing &c. appliances. KNAPP & BATES, Ltd., and BATES, W. R. May 2, 1942, No. 5935. [Class 86] An apparatus for mixing liquid and solid material, or two liquids, but particularly for use in ore flotation processes using ore pulps, comprises a tank 1 having disposed within it a vertical chamber 2 of rectangular cross-section provided with inlets 3 and with a restricted lower end formed in a casting 4 immediately below which is arranged an impeller 6 driven at high speed from a main shaft 7 by rope &c. gearing 8, 9. One side of the chamber 2 is cut away at 11, the opening being masked by a weir formed of wooden slats slid into a frame 13 and held in place by a weight. The tank 1 is provided with an overflow 14 and a wear plate 10.
Patent GB-584739-A (GB)
Title: Improvements in or relating to recording electric signals
IPC: H04N1/23
Filed: 1944-03-31
Abstract: 584,739. Telegraph receivers; copying by scanning. CREED & CO., Ltd., and THOMAS, F. R. March 31, 1944, No. 6008. [Class 40 (iii)] [Also in Group XIX] In electrolytic recording of morse signals, or in facsimile telegraphy, ordinary unprepared paper is used and is moistened with an electrolytic solution before it reaches the marking stylus. An ordinary signal-recording tape 1 is drawn by feed rollers 2, 3 past a pair of platinum, platinum-iridium or like styli 7, 8, but is first moistened with a strip of potassium iodide or other electrolytic solution by means of a wick 17 projecting from a reservoir 4. Direct-current signals set up a potentialdifference between the styli and thus make a coloured mark (in iodine under the positive stylus in the instance referred to). The pressure of the wick and styli on the tape may be adjusted by regulating the tension of the springs 22, 27, respectively, and they may be moved out of contact with the tape by operating the linkwork 15, 32, 23, by means of the handle 29, lost motion being provided at the joint 33 to permit of adjustment; and the feed rollers 2, 3 are released by the same movement. In a facsimile telegraph receiver, Fig. 4 (not shown), the tape 1 is replaced by a sheet wrapped round the drum 12, and the stylusholder 6 and reservoir 4 are traversed by a lead screw in a direction parallel to the axis of the drum so that a trace is made along a helical path.
Patent GB-471356-A (GB)
Title: Improvements in material delivery mechanisms
IPC: G01G21/00
Filed: 1936-02-28
Abstract: 471,356. Automatic control systems. BURGESS, A. F. (Toledo Scale Manufacturing Co.) Feb. 28, 1936, No. 6033. [Class 38 (iv)] [Also in Groups XVIII and XXX] Weight.-In a material - delivery mechanism wherein a weighing mechanism supporting a constant speed conveyer controls means for regulating the feed to the conveyer, the regulation is effected by electrical means which includes a photo - electric element co-operating with a moving part of the weighing mechanism and which relates the weighing mechanism to an electrical driving means imparting pulsations to the feeding means so as instantaneously to vary the amplitude of the pulsations of the feeding means in response to change in position of the weighing mechanism. The material from a hopper 4 passes through a vibratory conduit 6 to an endless belt 58 mounted, together with its driving motor 68, on the load pan 20 of a weighing machine such as that described in Specification 332,129, [Class 143]. The conduit is vibrated longitudinally to feed the material by means of a reciprocating motor 8 of the type in which the amplitude of its reciprocatory motion may be varied as described in Specification 403,839. The indicating pointer 47 carries a flag-like member 49 arranged to intercept the light passing from a light source 54 to a photo electric element 53 by way of an inclined slot 57. In operation, after closing a main switch 103, Fig. IV, the motor 68 drives the endless belt 58 at a constant speed, and the reciprocating motor 8 is energized to impart longitudinal pulsations to the conduit (i and feed the material. If the photo-electric element is .entirely unmasked by the flag-like member 49 the pulsations are of maximum amplitude and the feed is full. As the load increases, the pointer swings along the indicating chart and cuts off some of the light at the inclined slot 57 thus reducing the illumination of the photo-electric element which in turn reduces the output of the plate of a thermionic tube 89 in well known manner. This reduction affects the flux in a coil 91 forming part of a saturable reactor 93 and influences the current flowing in a coil 96 in circuit with the reciprocating motor 8 thereby varying the amplitude of the horizontal vibrations of the conduit 6 and reducing the feed. When half the light is masked from the photo-electric element the feed of material tends to remain constant.
Patent GB-525575-A (GB)
Title: Improvements relating to contact towers, dephlegmators and other chemical towers
IPC: B01D3/32
Filed: 1939-02-23
Abstract: 525,575. Treating gases with liquids. BAMAG, Ltd., and MANNING, A. H. Feb. 23, 1939, No. 6042. [Class 55 (ii)] In towers used in chemical processes, i.e., contact towers, dephlegmators and bubble towers, the weight of the tower is supported resiliently at spaced intervals throughout its height. The tower comprises a superposed series of bubble or contact supporting elements 2 some or all of which are supported by springs 8 at intervals through the height of the tower, directly or through outer casing sections. The tower is formed from uniform sections 2 of ferro-silicon. potware or metal with conically flared ends 3 carrying clamping rings 4 secured by nuts and bolts 5, some of which are eye bolts and are engaged by hooks 7 anchored on coil compression springs 8 bearing on brackets 9 on an external steel frame 10. Alternate sections have inward peripheral flanges 11 engaged by outward peripheral flanges 12 on inner contactor bubble elements 1.
Patent GB-1299315-A (GB)
Title: A fastener assembly
Inventor: ROSMAN I
IPC: F16B19/08
Filed: 1970-02-09
Abstract: 1299315 Riveting I E ROSMAN 9 Feb 1970 [10 Feb 1969] 6072/70 Heading B3U [Also in Division F2] In a method of riveting sheets 22, 23 together wherein an annular collar 10 is placed around the rivet shank 12 and the rivet end 11 upset by a piston 25 whilst the collar 10 is restrained by a sleeve 13, the collar 10 includes an internal cylindrical surface 30 having radiused comers 38a, 41 at its ends, the ratio between the corner radii and the rivet shank diameter being 0À02- À005. The rivet material, e.g. Al, Ti or stainless alloy, has an elongation greater than 10% and a reduction of area greater than 20%. The collar 10 may be of Al, Ti or stainless alloy or pure Ti. After riveting, the collar orifice surface 32 is continuous with the swelled hole 21<SP>1</SP> in the plate 23. The collar 10 may have a flange (55), (Fig. 5, not shown), and a surface 31 thereof may be inclined with the axis of the rivet shank (Fig. 4, not shown).
Patent GB-1260751-A (GB)
Title: Recording apparatus
IPC: G11B7/243
Filed: 1969-02-05
Abstract: 1,260,751. Optical recording. ROBERT BOSCH G.m.b.H. 5 Feb., 1969 [6 Feb., 1968], No. 6122/69. Heading G5R. A layer 3 of bismuth, supported by a transparent carrier 1, is vaporized or melted where it is struck by a modulated light beam, e.g. from a laser. It is covered by a reflection-reducing layer 4, e.g. of germanium, and underlaid by a layer 2 of a readily vaporizable material such as selenium or of one or two materials in which the laser beam causes a reaction which produces a gaseous component. Examples of such materials are azide compounds and highly nitrated cellulose varnishes. Reference has been directed by the Comptroller to Specification 1,147,531.
Patent GB-1446597-A (GB)
Title: Method and apparatus for forming tubes
IPC: B21D15/06
Filed: 1973-02-08
Abstract: 1446597 Corrugating tubes CLARKE CHAPMAN Ltd 4 Feb 1974 [8 Feb 1973] 6166/73 Heading B3E A tube to be corrugated is placed over a corrugated roll 12, and then a bearing 20 is raised by powered slide 22 to support a journal 18 on the roll. The roll is rotated by a motor 16, and a corrugated roll 24 also driven by motor 16 through a double universal joint 28 is lowered onto the tube by a powered slide 26 to effect corrugation of the tube. Corrugated support rolls 30 are positioned by powered slides 34, 36 to support the tube during forming. The diameter of roll 24 is slightly larger than that of roll 12.
Patent GB-540024-A (GB)
Title: Improvements in electro-mechanical tuned couplings or frequency filters
IPC: H03H9/58
Filed: 1940-04-05
Abstract: 540,024. Electro-mechanical tuned couplings ; piezo-electric crystal holders. STANDARD TELEPHONES & CABLES, Ltd. April 5, 1940, No. 6173. Convention date, June 8, 1939. [Classes 40 (iii) and 40 (v)] A tuned coupling or frequency filter consists of a continuous sheet 10 of piezo-electric material having two parts 11, 12 of large area separated by a bridge 14 designed to transmit from one part to the other a predetermined frequency band or harmonics thereof. Each part 11, 12 has two metallic electrodes 15, 16 and 17, 18 engaged at nodal points by supporting and conducting members 25 - 28 with rounded or pointed ends. The natural period of vibration of one part 11 may be a harmonic of that of the other part 12. Equations are given by which the dimensions of the bridge 14 may be determined.
Patent GB-958109-A (GB)
Title: Improvements in or relating to cartons
Inventor: MOSSE RICHARD WOLFGANG EMIL
IPC: B31B7/00
Filed: 1961-02-20
Abstract: 958,109. Laminates. METAL BOX CO. Ltd. Jan. 8, 1962 [Feb. 20, 1961], No. 6221/61. Heading B5N. [Also in Division B8] A lining of polyethylene, or polypropylene, is applied to a web of cardboard by extruding the lining from a die 20 on to a water-chilled casting roller 18 and passing the cardboard and lining between rollers 17, 18. The roller 17 may be recessed on its periphery so that it does not contact portions of the lining extending over openings in the cardboard web. A roller 22 ensures that the lining remains in contact with the chilled roller until cooling is effected. Draw rolls 23, 24 are provided.
Patent GB-197455-A (GB)
Title: Improvements relating to loose leaf books or binders
IPC: B42F13/02
Filed: 1922-03-02
Abstract: 197,455. Morland & Impey, Ltd., and Horsfield, W. R. March 2, 1922. Flexible-band files; covers. -In a loose-leaf binder of the thong type, the thongs e are clamped to one clamping bar b by a rotatable or slidable gripping-member, which, when brought into operation, produces an abrupt bend in the thongs and grips them against the edge h of the clamping bar. In one construction, Figs. 1 and 3, the thongs pass through slots f in the clamping bar b, and are gripped against the adjacent outer edge h thereof by reason of the abrupt bend produced by cranked portions j on the gripping-member i when this is rotated. In another construction, Fig. 7, the gripping action is obtained by a sliding member i, which is provided with a loop l so that when it is in the position shown in dotted lines, the thongs can move freely through the clamping bar. Each clamping bar consists of a folded strip, shaped at the fold in the case of the clamping bar b to serve as a socket for the member i, and open at the other edge to grip the adjacent cover.
Patent GB-359848-A (GB)
Title: Improvements in the manufacture of electric incandescent lamps, thermionic valves orthe like
IPC: H01J9/32
Filed: 1931-02-27
Abstract: 359,848. Making electric incandescent lamps, thermionic valves, &c. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin.) Feb. 27, 1931, No. 6242. Convention date, March 25, 1930. Addition to 293,313, [Class 39 (ii), Electric lamps, Incandescent]. [Class 39 (ii).] The pinch-making machine described in the parent Specification is modified by replacing the tiltable bridge-member which holds a die for guiding the leading-in wires by a jig which can be interchangeably inserted between resilient grippers and, before insertion, is charged with leading-in wires and the like. The jig 12, Figs. 2 and 3, is clamped between a pair of arms 3, 31, which are pivoted on two vertical rods 2 and are drawn together by a spring 4, the outer ends of the arms being bent downwardly and outwardly and provided with angle-pieces 9, 9<1>. The angle-piece 9 is provided with a wedge-shaped groove to receive a corresponding edge of the die 12, and the anglepiece 9<1> has an inwardly directed pointed portion which engages within a conical recess on the other edge of the die. In the example the die is provided with eleven vertical channels, four of which receive leading-in wires 15, the remainder being occupied by shorter supporting wires 16. The wires 15, 16 are supported, and their correct length adjusted, by a horizontal plate 19 mounted adjustably on a vertical pin 17 on the bottom edge of the die and secured by a screw 18. A horizontal fork 25 mounted on the top of a vertical arm 23 extending from a horizontal shank 22 secured by screws on the front surface of the die 12 serves to support the upper ends of the leading-in wires, which are bent downwardly to lie within the fork so that they are out of the way during the operation of sealing the wires to the foot tube. The foot tube 26 is clamped between a pair of arms 28 pivoted on the rods 2 and drawn together by a spring 29, Fig. 3, the extremities of the arms 28 being disposed between the angle-pieces 9, 9<1> of the jaws 3, 31, so that when the push-rod 32 is raised vertically between the arms 28 it moves them apart and consequently opens the arms 3, 31 also. An exhausting tube 7 is held by a pair of arms 5, 51 pivoted upon the rods 2 and drawn together by a spring 6.
Patent GB-555852-A (GB)
Title: Improvements in or relating to colostomy belts and accessories thereto
IPC: A61F5/445
Filed: 1942-05-08
Abstract: 555,852. Colotomy appliances. BRADLEY & BLISS, Ltd., and SPICE, E. A. May 8, 1942, No. 6242. [Class 81 (ii)] A colotomy belt comprises a flexible body plate 7, Figs. I & 3, having a hole or aperture surrounded by an internally-directed circular flange 8, a tubular shoot member 9, Fig. 4, having a circular mouth 13 adapted to fit on the flange 8 and bayonet-fastening members 11, 12 at diametrically-opposite points of the mouth and flange for locating the member 9 on the plate 7 with its outlet tube 19 directed centrally downwards and for determining the extent of engagement of the mouth and flange so that a liquid tight joint can be obtained by providing a rubber washer 14 between then ; a bag or receptacle 15 is tied around the tube 19 or studs 16 on the tube may be provided for engaging slots in the mouth of the bag, the lower end of which may be open and closed when desired by the use of a clip 20. The member 9 may be replaced by an irrigation cap 10, Fig. 8, of dome shape having a central aperture 18 to admit a catheter and a circular mouth portion 13 with bayonetfastening elements 12 for co-operating with the element 11 in the flange 8 to give the liquid-tight joint with the washer 14. The flange 8 has an internal radially-directed flange 21 defining a recess at the inner side of the plate 7 for receiving a perforated member or grid for controlling the colotomy against the development of a hernia. The plate 7 is of celluloid or other washable material and has studs 6 adapted to engage elastic or other straps 4 at the ends of an adjustable belt 1.
Patent GB-1175252-A (GB)
Title: Improvements in or relating to High-Frequency Generators for Supplying Discharge Tubes.
IPC: H05B41/282
Filed: 1967-02-09
Abstract: 1,175,252. Supply systems for discharge tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 9 Feb., 1967 [12 Feb., 1966], No. 6272/67. Heading H2H. A circuit for striking and supplying a discharge lamp includes a high-frequency generator which operates by discharging a capacitor through a switching element such as a thyristor. In the circuit shown in Fig. 1, a mains supply is connected to terminals 1, 2 so that the capacitor 5 is charged through a coupling impedance 3 and the primary winding 4 of a transformer whose secondary is connected across the lamp 8. Before the peak voltage of the supply is reached, the potential at the gate of the thyristor. 6 becomes sufficient to trigger it, and the capacitor now discharges through the thyristor, the effective frequency being determined by the magnitudes of the inductor 4 and capacitor 5. A number of such chargedischarge cycles will occur in each half-wave of the mains supply. In a modification, Fig. 2 (not shown), the mains is also connected to the discharge lamp and the circuit is arranged so that the high frequency generator serves only to ignite the lamp. In this arrangement also, the lamp is provided with preheater cathodes.