baber/WOPTO huggingface dataset:
Patent GB-539240-A (GB)
Title: Improvements in tool grinding and lapping machines
IPC: B24B3/34
Filed: 1940-03-01
Abstract: 539,240. Tool grinding and lapping machines. BOWEN & CO. (ENGINEERS), Ltd., W. G., and GRODZINSKI, P. March 1, 1940, No. 3890. [Class 60] A tool-grinding machine particularly for rough and finish grinding of carbide-tipped tools has roughing and finishing cup grinding-wheels b, a respectively mounted on parallel axes with the grinding faces in a common plane in front of which the tool-holder may be displaced so as to present the tool to be ground on either side of the axis of either wheel. The wheel a is driven directly from the motor c through a flexible rubber coupling d' while the wheel b is driven also from the motor preferably at a lower speed, by belt gearing c'. The tool-holder comprises a saddle e slidable on bars f, f<SP>2</SP> and clamped thereto by shaped clamping pieces g<SP>1</SP>, g<SP>2</SP> actuated by a right and left hand spindle h. The bars and saddle may be axially reciprocated by a hand lever i acting through a link i<SP>2</SP> and crosshead i<SP>3</SP> or through rack-and-pinion gearing. The saddle carries a cross slide j fitted with a rotatable table k having a part k<SP>2</SP> on which is pivoted on a bolt l' a bracket l in which the base m of a tool-holder n is pivoted on an axis transverse to the axis of the bolt l<SP>1</SP>. The toolholder slides in dovetail guides and may be clamped therein by a set screw n<SP>1</SP>. By rocking the table k during grinding a round nose of adjustable curvature may be formed on the tool edge. Instead of reciprocating the bars f<SP>1</SP>, f<SP>3</SP> the saddle block e may be reciprocated along the bars by a hand-lever and rod or by an endless chain. The tool may be ground in either direction by changing its position from one side to the other of the grinding wheel axis. In a modification, Fig. 9, the peripheral surface of a wheel may be used without imparting concavity to the work by replacing the turntable by a post r which is vertically reciprocated in the saddle e by an eccentric t or by rack-andpinion gearing. Alternatively, the grinding- wheel may be mounted to reciprocate.
Patent GB-253169-A (GB)
Title: Improvements in the construction of airscrews
IPC: B64C11/04
Filed: 1925-02-12
Abstract: 253,169. Leitner, H. Feb. 12, 1925. Screw propellers.-Airscrews with hollow, detachable, and adjustable blades are provided at the root with a sleeve and liner having abutting shoulders whereby the securing rivets are in double shear under centrifugal force during rota,- tion. The sleeve b, Fig. 1, has a flanged end e which bears, up against a flange f on the liner c; rivets d securing the liner and sleeve to the root of the blade a. The liner bears up against the hub during rotation of the propeller. When the blade is screwed on to a spigot on the boss, the sleeve b has a screwed extension g, Fig. 2, and its flange f then contacts with the in-turned flange e of the liner c. Specification 165,548 is referred to.
Patent GB-822232-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: B21D53/50
Filed: 1956-10-09
Abstract: 822,232. Sliding clasp fasteners. RUHRMANN, J., and BAVENDAHL, H., [trading as RUHRMANN, J., [Firm of]]. Oct. 9, 1956 [Oct. 21, 1955], No. 4077/59. Divided out of 821,341 Class 44. A sliding clasp fastener comprises a continuous filament 1 formed into a series of substantially U-shaped coupling links, the ends of each link being joined to'the preceding and succeeding links respectively; a carrier tape 4 extending along one side of the links; and a beading 3<SP>1</SP> extending along the other side thereof. As described the filament is of rectangular section; and the links formed therefrom are deformed, one limb 14 of each link being bent at 16 and 17 to form a shoulder 18, the remainder 141 of the limb thereby lying between the limbs 15 of the adjacent links. The beading 3<SP>1</SP> or the shoulders 18 may serve as a slider guide. The carrier tape 4 extends along the limbs 15 to form a covered fastener.
Patent GB-925080-A (GB)
Title: A method of manufacturing an electrode composed of a core of titanium and a porous coating of a noble metal
IPC: C25B11/08
Filed: 1960-02-05
Abstract: An electrode having an electrical resistance such as to make it suitable for use as an anode in electrolysis is manufactured electrolytically or by oxidation in an oxygen-containing atmosphere providing a barrier layer of titanium oxide upon a titanium core, then applying a coating of a metal of the platinum group thereto.  In Example (1) a titanium plate is provided with an anodized oxide coating, then either (a) sprayed with a solution of rhodium trichloride and a reducing agent, and heated, or (b) brushed with a solution containing platinum tetraiodide and rhodium trichloride and a reducing agent, and heated; (2) a titanium rod is heated in air or oxygen to form an oxide coating then electro-plated with rhodium by "electrolytic brushing"; and (3) a titanium plate is oxidized as in any of the previous examples and a platinum-iridium alloy is applied by chemical reduction from a solution of salts.  Specifications 85,107 and 869,865 are referred to.
Patent GB-197723-A (GB)
Title: Improvements in or relating to railway and like vehicles
IPC: B61D17/12
Filed: 1922-02-13
Abstract: 197,723. Kouldcroft, A. T. Feb. 13, 1922. Sides, floors, roofs, partitions, and framing.- In a railway or like vehicle the longitudinal side portions of the roof are arranged independent of the remaining intermediate or central portion and are formed of sheet material bent to a convex shape and carried by the side pillars of the vehicle body or extensions thereof and form in effect upward and inward convex extensions. The side pillars a support by means of lower cant rails g, g<1> the carlines c, brackets i from which carry purlines h. Upper cant rails d, d<1> attached to, or on, extensions secured to the side pillars a, together with the purlines h carry the roof sheets j which may be of galvanized iron. The side portions b of the roof are convex in shape and are carried by the upper cant rail d, d<1> and side posts a. Transverse and longitudinal stiffening plates may be used to support the side and central sheets of the roof. The carlines c may carry the ceiling s. In Fig. 8, the door v is carried by rollers u supported by a channel 't carried by a bracket from the channel shaped member w. An extension y is attached to the side portion b of the roof by a cover strip x. The various parts may be secured together by rivets or by welding such as electric welding, arc, spot, single or double seam or autogenous gas welding. A monitor roof pcrtion may be constructed in a similar manner. The above construction of roof may be applied to vehicles of the kind described in Speci fication 12683/11.
Patent GB-140882-A (GB)
Title: An improved method and means of springing the driving wheel of a motor cycle, cycle car, or like propelled machine
IPC: B62K25/20
Filed: 1919-02-22
Abstract: 140,882. Harmer, E. F. Feb. 22, 1919. Spring devices.-In a springing for the driving road-wheel of a motor-cycle, cyclecar, or like propelled machine, of the kind wherein the axle is caused to move concentrically about the axis of the driving pulley or wheel, the path of the axle in springing is determined by two straight arms or components, which are set at an angle to each other and slide through two fixed points or guides on the frame. The arms a, b slide through rotatable bearings j, k equidistant from the axis of the driving-pulley or the like, and the wheel axle d is received by a boss or collar f which may be mounted directly at the intersection of the arms, or, as shown, may be adjustable in a frame e at the intersection of the arms. One or both of the fixed points may also be provided with adjusting-means. The movement of the axle may be controlled by a helical spring between the upper frame lug m and the boss f or the frame e, and a second spring may be arranged about the arm b below the frame lug n. In the construction shown, a laminated spring 2 is connected to the upper end of the arm a by a pair of brackets 1 and a sleeve 4, the centre of the spring being held in a strap 7 fixed to the end of a transverse bridge-piece 9 carried by struts p, p<1>, p<2>; the laminated spring may also be fitted below the chain stays. Instead of using a single-member chain stay as shown, the stay may be of triangular construction.
Patent GB-840579-A (GB)
Title: Improvements in or relating to machines for and methods of winding yarn
IPC: B65H67/056
Filed: 1958-02-11
Abstract: 840,579. Winding yarns. UNIVERSAL WINDING CO. Feb. 11, 1958 [March 8, 1957], No. 4457/58. Class 120(2). A winding machine for winding a continuously advancing strand of yarn comprises a rotatable spindle for rotating a package receiving core, a surface carried by the spindle arid so positioned theron that the strand of yarn will extend thereacross prior to the start of a winding cycle, a yarn engaging member adjacent said surface and means for causing this member to catch the yarn when the spindle is rotating at a predetermined speed. The Figures show a winding machine having a winding head 10 mounted on a pedestal 11. Winding head 10 includes a spindle 12 journalled adjacent a frame 13. The latter is pivotally mounted to base 14 by means of shaft 15 to permit spindle 12 to swing toward and away from traverse guides 16 which are reciprocated by a barrel cam (not shown). Running strands of yarn, Y and Y<SP>1</SP>, pass downwardly through a guide 28, around guides 30 and 31 carried by compensator arm 32 and up to package receiving cores 21 mounted on spindle 12. The speed of spindle 12 is regulated by a control circuit and mechanism actuated by the strands of yarn which move compensator arm 32 according to the tension in the yarn. An arm 23 fixed to frame 13 so as to pivot therewith is connected to a shaft 24 journalled in pedestal 11, by link 25 cam plate 26, arm 27 and slotted lever 28 to rotate shaft 24 as frame 15 pivots in a clockwise direction in Fig. 1 to decrease the force which must be exerted on compensator arm 32 to lift said arm. Spindle 12  is provided with any convenient expansible arbor 20 for releasably gripping cores 21 and is operable by lever 22. A cap 35 is fixed to the outermost end of spindle 12 and has a frustoconical nose 37 and an annular flange 38. A slot 40 is formed in the periphery of flange 38 and has a pivotally mounted yarn engaging member 41 therein which member is spring urged inwardly of the cap with its finger 42 retracted into slot 40. At the commencement of winding the running strands of yarn are guided across the nose 37 to an aspirator 50 (Fig. 3) which collects the yarns advanced between the completion of one winding cycle and the commencement of the next. Spindle 12 is started and when it reaches a predetermined speed member 41 is urged radially outwards by centrifugal force to catch the running yarns and start them winding on cores 21. Specifications 751,166 and 787,129 are referred to.
Patent GB-1195182-A (GB)
Title: High Pressure Preparation of Yttrium Sequicarbide.
IPC: C01B31/30
Filed: 1969-01-27
Abstract: 1,195,182. Yttrium sesquicarbide. UNITED STATES ATOMIC ENERGY COMMISSION. 27 Jan., 1969 [6 Dec., 1968], No. 4468/69. Heading C1A. An yttrium sesquicarbide Y 2 C 3  having a body centred cubic crystal structure is formed by arc melting a material having a composition in the range YC 1 . 2  to YC 1 . 5  and subjecting the melted material to pressure in the range of 15-25 kilobars, and to a temperature of 1250-1350 C. for a period of 3-6 minutes and then temperature quenching this elevated pressure.
Patent GB-453599-A (GB)
Title: Improvements in electric relays
IPC: H01H50/56
Filed: 1935-02-12
Abstract: 453,599. Light - current relays. BRANDER, B. J., 10, Dannemoragatan, Stockholm. Feb. 12, 1935, No. 4520. Convention date, Feb. 23, 1934. [Class 38 (v)] Relay contact - spring sets have the movable blade spring members supported at or near to their free ends by a movable member which is adapted to impart motion thereto in two opposite directions, the movable spring blade members being of such flexibility as to be incapable of being appreciably pre-tensioned, the necessary retractive force for returning the contacts after engagement being provided by a spring acting on the movable member. As shown in Figs. 1 and 3, the pivoted armature b operates contact springs formed of extremely thin metal so that they cannot receive any appreciable initial " set." The contact blades are clamped at one end as usual between insulating plates attached to the relay yoke, the free ends of the relatively fixed springs having lateral projections resting in slots formed in insulating pillars k. The movable springs similarly have lateral projections engaging slots in a movable insulating member f, the lower end of which is adapted to be engaged by the horizontal arm of the armature. The upper end of the member f bears against a tongue of a strong blade spring g which furnishes the retractive force for returning the armature after attraction. The pressure of the spring g is adjustable by a screw l. The insulating members k are provided with spare slots so that the number and position of the contact springs employed may be varied at will. Where springs bearing single contacts are employed they may be crossed over, as for example, springs 5 and 6, which together with spring 7 form a " double-make " combination. If springs having two contacts are employed, their extreme flexibility gives a twisting action during their engagement to give a " wiping " action to the contacts.
Patent GB-322393-A (GB)
Title: Improvements relating to fruit or vegetable cutting machines
IPC: A23N4/18
Filed: 1929-02-12
Abstract: 322,393. Whittaker, A., and Andrews, K. E. G. Feb. 12, 1929. Cutting and slicing vegetables. - Vegetable materials such as the peel of oranges or lemons are fed by a trough j into the interior of a drum formed from a number of spaced thin metal strips a rigidly secured in a holder b fixed to one end of a driving shaft c. Parallel strips are used when slices are desired, cross-strips also being fitted when it is intended to cut cubes. The materials are forced against the strips by a roller d carried on a pivoted arm f that is provided with an adjustable stop g to regulate the clearance between the drum and the edges of the strips. A spring or light weight e forces the roller towards the inner surface of the drum. The roller may be driven from a shaft h. The cut material passes through gaps l in the framing of the drum to a receptacle k. The drum and the roller are enclosed in a casing i.
Patent GB-397145-A (GB)
Title: Improvements in or relating to telegraphic installations
IPC: H04L12/00
Filed: 1932-02-17
Abstract: 397,145. Code telegraphy. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Feb. 17, 1932, No. 4721. Convention date, Feb. 17, 1931. Addition to 306,406, [Class 40 (iii), Telegraphs, Electric]. [Class 40 (iii).] A polarized slow-acting relay controlled by the line relay is used for holding the connection in a telegraph exchange during traffic. According to the parent Specification, an a.c. or other distinctive impulse is used for clearing, whereas d.c. impulses are used for automatic calling and for message traffic. According to Specification 314,974, [Class 40 (iii), Telegraphs, Electric], d.c. impulses are used for clearing as well as for message traffic ; the armature of the receiving relay at the exchange is moved by a d.c. calling impulse from the idle or "false normal" position (in which it shortcircuits the pre-selector) to the spacing position, the normal position during idle periods being the same as the marking position during traffic periods. According to the present invention, a slow-acting polarized relay T, separate from the line relay ER, is used at the exchange for this purpose. Fig. 1 shows a single-current line a b feeding a double-current line a<1> bl through a relay ER. When the armature er is in the full-line position (which is the rest position during idle periods and the marking position during a message) the current in winding I of relay T opposes that in winding II. When, however, the normally flowing current in line a b is interrupted, contact er moves to the dotted-line (spacing) position, and slowacting relay T pulls up, closing at t a circuit for operating the exchange mechanism. Thereafter contact t remains closed until the receipt of a marking signal of sufficient duration to release the slow-acting relay T. In the case where the incoming line a b works with doublecurrent and the outgoing line a<1> b<1> with single current, the relay T is connected in the former line, Fig. 2 (not shown). Fig. 3 shows the connections for a subscriber's jack at the exchange. A second subscriber together with exchange connections are represented by TA. A call from this latter subscriber completes a circuit through relay R, which pulls up and energizes winding I of relay ER via contact r. Armature er thereupon moves to the dotted position, and slow-acting relay T pulls up as described above. Through connection is thus established at t<1>, t<2>, and contact t<3> replaces contact r. Thereafter signals are sent on to the distant subscriber by contact er, and to subscriber TA by contact sr which has been set to the working normal (dotted) position by a return impulse sent by the distant subscriber to relay SR.
Patent GB-402040-A (GB)
Title: Improvements in or relating to shaving brushes
IPC: A46B11/02
Filed: 1932-02-17
Abstract: 402,040. Reservoir brushes. DEPASSE, H., 12, Rue Berteaux-Dumas, Neuilly-sur- Seine, France. Feb. 17, 1932, No. 4737. Void [Abridged as open to inspection under Sect. 91 of the Acts, Feb. 25, 1932]. [Class 19.] A reservoir shaving brush consists of a magazine 1 in which works a piston 6 with washer 7. A tube 3 is brazed to the bottom of the magazine 1 and forms with a solid piston 8 an ejecting device for soap. A spring 9a is mounted between a cap 9 and the pistcn 6 pushing soap into the tube 3 through holes a. When pressure is exerted on the cap 9, with the part 1 held in the hand, soap is ejected by the piston 8 through a rubber valve 5.
Patent GB-607758-A (GB)
Title: Improvements in water and like taps
IPC: F16K43/00
Filed: 1946-02-15
Abstract: 607,758. Valve accessories. TOTTENHAM, H. L. W. Feb. 15, 1946, No. 4753. [Class 135] A tap comprising a body 3 having a seat 4 for a screw-down valve has a flange 5, eccentric to the inlet port of the body, and coacting with an eccentric flange 1 on a supply conduit 2 whereby, by rotation of the body, the water supply is cut off to facilitate removal of the valve. The flanges are secured together by a ring 8 and a fibre washer 10 is interposed between the flanges and secured by adhesive to one of them.
Patent GB-851260-A (GB)
Title: Blower or compressor of the outwardly-sliding vane type
IPC: F01C21/08
Filed: 1959-02-11
Abstract: 851,260. Rotary compressors. VENEDIGER, H. J. Feb. 11, 1959 [Feb. 27, 1958], No. 4780/59. Addition to 818,610. Class 110 (2). A rotary compressor as claimed in the parent Specification is provided with wearresistant inserts 4 of diamond, sintered or cast carbide hard metals, glass products or cobalt-chromium-tungsten alloys.
Patent GB-541642-A (GB)
Title: Improvements in or relating to a roll film photographic camera
IPC: G03B19/04
Filed: 1941-04-10
Abstract: 541,642. Roll-film photographic cameras. KODAK, Ltd., NAGEL, H., and GUY, H. April 10, 1941, No. 4808. [Class 98 (i)] A roll-film camera, particularly for photographing personnel, comprises a spindle for a supply reel holding a comparatively long length of film, which is guided past the aperture in a film gate and wound on a take-up reel, a support for a supply roll of film of comparatively short length which may be fed through the gate alternatively to the long film, a footage indicator for the long film, and a separate exposure indicator for the short film. As shown, the long film passes from a reel 24 through a gate having a spring-urged pressure plate 14, and then over a sprocket wheel 27 to the take-up reel 30. Alternatively, when comparatively few photographs are to be taken, a film cassette is placed in a carrying sleeve 58, the film passing through the gate and over the sprocket wheel and coiling in a curved plate 63. The sprocket is driven by a half-turn of a handle 31 through a pawl 35 which engages a shouldered disc 37 on the sprocket spindle, the take-up reel being simultaneously turned by a belt 39. On turning the handle backwardly, an extension of the pivot-pin 36 of the pawl engages and turns a pivoted plate 50 clockwise, this rocking a shutter-operating shaft 46 through a link 49 pivoted to an arm 48 on the shaft. Simultaneously a pawl 68 pivoted between arms 70 on the shaft and engaging ratchet teeth on the flange of a counter disc 65 operates the counter, which may be set to zero position by a knob 75. The footage indicator for the long film consists of a pivoted plate 54 secured to a shaft 55 rocked by an arm 56 which bears on the outside of the film on the supply spool. To allow rewinding of the film into the cassette, a spring-urged latch plate 83 which prevents reverse rotation of the shouldered disc 37 on the sprocket shaft is moved by a knob 89 to an inoperative position in which it also lifts the pawl 35 from engagement with the disc.
Patent GB-214956-A (GB)
IPC: F22B31/00
Filed: 1924-02-25
Abstract: 214,956. International Combustion Engineering Corporation. April 27, 1923, [Convention date]. Pulverulent and liquid fuel furnaces.-A pulverulent-fuel furnace, adapted also for the combustion of liquid fuel, comprises a combustion chamber with separate water-tube, boiler units arranged at the sides and rear and having substantially vertical tubes connected to upper and lower horizontal drums. Fuel mixed with air is introduced at the top of the combustion chamber by burners F, Fig. 1, and delivered downwardly in front of the wall 15 which is provided with damper-controlled air inlets 22. As combustion proceeds, the course of the gases in the combustion chamber is reversed and the gases pass upwardly and thence by a tortuous course denned by baffles 18, 19 between the water tubes finally escaping through outlets 20 in the rear and side walls. The top wall 16 of the furnace is hollow and cooled by air passing to the burners. The lower part of the combustion chamber is cooled by air admitted through doors 25 or by a screen of water-tubes connected to a header 27 and the upper and lower drums of the rear boiler unit. In a modification, the rear boiler unit is omitted and a series of downwardly-directed burners is arranged in the top of the combustion chamber in front of the rear wall so that the two fuel and flame streams are bent inwardly and upwardly towards each other and unite before passing around the boiler units at the sides.