baber/WOPTO huggingface dataset:
Patent GB-123831-A (GB)
Title: Improvements in or connected with Artificial Limbs.
Inventor: BLATCHFORD CHARLES ALBERT
IPC: A61F2/64
Filed: 1918-03-08
Abstract: 123,831. Blatchford, C. A. March 8, 1918. Limbs, artificial.-To return the calf member of an artificial leg to the supporting position after displacement in the act of walking or sitting, a rigid member 10, Fig. 1, which is secured to the upper end of the calf member so that it is supported solely by the calf member and is entirely independent of the knee joint pivot 6, projects upwardly immediately in front of the knee joint pivot and carries a roller 13 at its upper end for connexion to the usual body harness straps 15. In this particular construction, the member 10 carries a resilient buffer 21 contacting with a limiting stop 20 on the thigh member when the leg is in the supporting position. In a modified construction, the rigid member is carried by a bridge-piece 10<a>, Fig. 3, having two depending arms 11 fixed in sockets on the calf member. The resilient buffer 21 is fixed to the thigh member in this case. One of the arms 11 may be made hollow to carry a sliding spring locking-bolt 22 to retain the calf member in the supporting position. The handle on the bolt works in a bayonet slot 25. In a further modification, an additional cord or chain 18, Fig. 5, is interposed between the rigid member and the harness cord. In this case, the upper end of the rigid member is provided with a drum or segment 17 to which one end of the cord 18 is secured, while the other end is secured to the harness-operated pulley frame 19. Specification 117,873 is referred to in the Provisional Specification.
Patent GB-161560-A (GB)
Title: Process of collecting and purifying minerals
IPC: B03D1/00
Filed: 1921-02-04
Abstract: 161,560. Trent Process Corporation, Assignees of Trent, W. E.). April 9, 1920, [Convention date]. Agglomerating processes.-Ores, flue dust, &c. suspended in water are treated with a substantial proportion of oil and of finely divided coal, and the mixture is agitated to form a mass containing the metalliferous constituents of the ore, the coal, and the oil, and not containing the gangue and impurities originally present in the ore and in the coal. The ore treated may be a froth concentrate. The oily materials and coal in the product constitute fuel for subsequent smelting or other treatment of the ore.
Patent GB-1379976-A (GB)
Title: Apparatus for the heat treatment of bulk materials
IPC: C04B2/10
Filed: 1972-01-28
Abstract: 1379976 Fluidized beds BUDERUS'SCHE EISENWERKE 28 Jan 1972 [19 June 1971] 4229/72 Headings F4B and F4U  A fluidized bed for use in the heat treatment of bulk materials characterized in that the bulk materials 1 which are to be treated are arranged on a wall of porous bricks 3 through which a mixture of fuel and air is conducted and burned at the surface. The gases effect fluidization and heating and as shown when the wall is inclined at a chosen inclination, also the conveyance of the material. The gases are then conducted to a flue 6.
Patent GB-696776-A (GB)
Title: Change-speed gears
IPC: F16H57/028
Filed: 1951-02-22
Abstract: 696,776. Change - speed gear. AUSTIN MOTOR CO., Ltd., and RIX, J. R. Feb. 12, 1952 [Feb. 22, 1951], No. 4267/51. Class 80 (ii). A one-piece gear cluster 13x, mounted at each end on bearings 16 on a stationary layshaft 10 has an additional centre bearing 21 thereon. Thrust washers 15 are provided, and a stop 12 prevents rotation of the layshaft 10.
Patent GB-139589-A (GB)
Title: A hat and cap hook or clip
IPC: A47G25/10
Filed: 1919-02-21
Abstract: 139,589. Speirs, J. L. Feb. 21, 1919. Hooks fixed to flat surfaces. - A hat or cap hook or clip, adapted to be fixed to the back of a seat, &c., comprises a box-like casing A in which is pivoted a peg B of similar outline to the casing and normally retained in the closed position by a spring E. When opened out to receive a hat &c., the peg comes against a stop F. Reference has been directed by the Comptroller to Specifications 20433/99, 7079/05, and 619/14.
Patent GB-689634-A (GB)
Title: Improvements in sieve cloths
Inventor: SCHREUS THEO
IPC: D03D15/00
Filed: 1950-02-21
Abstract: 689,634. Leno-woven sieve cloth. VEREINIGTE SEIDENWEBEREIEN AKT.-GES. Feb. 21, 1950, No. 4360/50. Drawings to Specification. Class 142(iv) A sieve cloth comprises leno-woven warp threads of synthetic fibre having greater resistance to abrasion than the weft threads, which are of animal or vegetable origin, preferably having a rough surface, for example raw silk.
Patent GB-929357-A (GB)
Title: Improvements in control gear for a.c. commutator motors
Inventor: GREGORY JOHN PEARSON
IPC: H02K27/18
Filed: 1961-02-06
Abstract: 929,357. Control of A.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 1, 1962 [Feb. 6, 1961], No. 4389/61. Drawings to Specification. Class 38 (3). The speed of a three-phase commutator motor is controlled in stepped relation by means of a pilot motor which is coupled to the brushgear and is associated with a drum controller having the same number of operating positions as the desired speeds of the commutator motor. A limit switch is engageable by the brush-gear for each desired speed of operation, and, except at the lowest speed, the final movement of the brush-gear before it is brought to rest is in the speed-increasing direction. The drum controller has duplicate operating positions for reversible operation of the commutator motor. The pilot motor is reversed if the controller is switched from one operating position to a second and then returned to the first position before the limit switch corresponding to the second position has been actuated. To prevent one or more of the operating speeds from being obtained if the load current of the commutator motor exceeds a given value, the coil of a relay is energized in accordance with the load current to de-energize the pilot motor when the load current reaches the given value. The commutator motor is braked mechanically immediately prior to the removal of the supply from the motor. Specification 409,485 is referred to.
Patent GB-959649-A (GB)
Title: A machine tool having a slide that is angularly adjustable in a vertical plane and connected to a counterweight
IPC: B23Q11/00
Filed: 1963-02-04
Abstract: 959,649. Machine tool details. CINCINNATI MILLING MACHINE CO. Feb. 4, 1963 [June 27, 1962], No. 4393/63. Headings B3B and B3K. A slide 18 which is angularly adjustable in a vertical plane in a machine tool is provided with balancing means, the slide carrying a curved track 36 along which an attachment point 26 for a balancing means is adjusted in response to angular movement of the slide. The slide 18 carries a milling spindle 20, the axis of which passes through the centre of angular adjustment of the slide. The slide guides are mounted on a column 10 or on a slide thereon and the column is carried on a slide 12. The attachment member 26 engaging the guide 36 supports a chain 24 attached to a counterweight piston 31. The member 26 is held in a vertical path by a roller engaging a track 54.
Patent GB-324539-A (GB)
Title: Improvements in or relating to louvre ventilators
IPC: E06B7/084
Filed: 1929-02-09
Abstract: 324,539. Wild & Co., Ltd., A. G., and Bates, B. W. Feb. 9, 1929. Ventilators. - The glass slips of a pivoted louvre ventilator are mounted in channelled carriers a, a<1> covered, with sheet steel or brass &c. pressed thereon, and bearing on the face of the glass so as to hold the cement or other plastic material in place. The actuating lugs e are formed on, or brazed to the carriers, and the sheet metal covering is cut away to fit the lugs. The pivots f are screwed into the carriers, and bearing washers are provided having flattened edges to lie between the edges of the covering.
Patent GB-673399-A (GB)
Title: Improvements relating to studs for athletic boots and shoes
IPC: A43C15/16
Filed: 1950-02-21
Abstract: 673,399. Making screw-spikes. LILLIE, A. E. Dec. 12, 1950 [Feb. 21, 1950], No. 4449/50. Class 83 (ii). [Also in Group VII] A stud for athletic footwear of the kind made in two inter. engageable parts, viz. a base 3 and an outer stud 1 carrying a plate 2 and having a threaded shank 9 tc engage the base, is characterized in that the plate 2 and combined spike and shank 1 are formed separately from one another to facilitate production of the stud and forcibly engaged together by a force fit. For this purpose a stem 7 which connects spike 4 and shank 9 may be knurled, fluted or similarly formed to bite into the wall 10 of an aperture in the plate 2. A collar 6 on the inner end of the spike 4 may be pressed down on to the plate 2 which may have tongues 16 pressed out to engage the boot &c. sole and may also be somewhat dished. The combined spike and shank 1 may be formed from a length of metal bar of circular section, one end of which is turned to form a 'tapered spike 4. Stud elements of this kind may be assembled in a machine wherein a series of plates 2, each with a central aperture, are fed in succession beneath a punch or ram which drives home the parts which have been brought into register and partially inserted one in the other, the assembled units being fed forwards to make room for the succeeding ones. The plates may be moved stepwise and the punch or ram reciprocated in timed relation therewith. The swaging of the collar 6 on the plate 2 may also be performed upon or after the interlocking of stud and plate. The same machine may be arranged to cut out, perforate and shape the plates 2 to their domed formation before bringing them on to the conveyer which carries them to the punch or ram.
Patent GB-162128-A (GB)
Title: Improvements in magnetic blow-out devices for electric switches and the like
IPC: H01H9/44
Filed: 1920-02-13
Abstract: 162,128. Zweigbergk, T. Feb. 13, 1920. Magnetic blowouts.-Consists in the following detail improvements in mag netic blow-outs of the kind in which the arc is caused tc ,encircle a sleeve-like shield surrounding a magnet. (1) A number of windings c sectionally disposed along a common core b are connected ir parallel, their inner ends being secured to the core b in the manner shown in Fig. 2, and their outer ends to a strip conductor f. The core band the conductor are respectively connected to terminals j, k. (2) The arc-separating flanges p are formed with removable facings q. (3) The shielding sleeves e are formed in two semicylindrical halves hinged together at r, Fig. 2, and screwed together at the opposite edges s. When thus fitted the sleeves hold the flange-sealings in place and both are readily removable.
Patent GB-1255135-A (GB)
Title: Electric hair clipper
IPC: B26B19/28
Filed: 1970-01-30
Abstract: 1,255,135. Electric hair clippers. WAHL CLIPPER CORP. 30 Jan., 1970 [24 Feb., 1969], No. 4607/70. Heading B4B. An electric hair clipper comprises a rotary motor 35 driving an eccentric 62 which engages two flanges 66 projecting from a follower 65 engaging a reciprocable cutter 49 to move it relative to a fixed comb cutter 48. A spring 75 biases the cutting edge of the cutter 49 against the cutter 48. and a guide block 50, preferably made of low friction plastics, is mounted on the reciprocable cutter 49 to move in a transverse groove 51 in the fixed cutter 48. The block 50 has two yieldable bosses 54 which engage in apertures 53 in the cutter 49, so that the block is removable for sharpening the cutters etc. The follower 65 has a boss 70 engaging an opening or recess 71 in the cutter 49, the follower and eccentric 62 being made of low friction plastics material and the flanges 66 having lateral projections 95 engaging bosses 96 to retain the follower when the cutters are removed. The motor 35 holds the spring 77 flexed at 78, the motor being supported on bosses 36, 37 and having resilient packing 80, 81. A rechargable battery may also be provided and is restrained from movement by conductors (43), (44) Fig. 4 (not shown), and resilient packing 45, 46. In a second embodiment, a spring (75<SP>1</SP>) Figs. 23, 24 (not shown) may replace spring 75 to provide better isolation between the transmission and motor parts of the dipper.
Patent GB-725578-A (GB)
Title: Improvements in or relating to bag blanks
IPC: B65D30/08
Filed: 1953-02-19
Abstract: 725,578. Paper and like bags. KLEIN, E., KLEIN, H., and KLEIN, W.; [trading as BISCHOF & KLEIN]. Feb. 19, 1953 [Feb. 22, 1952], No. 4626/53. Class 94 (2). A multi-ply paper or like bag is formed from a blank having bitumen or viscous crude paraffin spread between the plies in the areas in which the fold will occur. As shown in Fig. 4, webs of paper 3, 4, 5, 6 are stuck together at rollers 21, 22, and rollers 23, 24 provide longitudinal strips of bitumen or viscous crude paraffin 7, 8, Fig. 7, on an inner ply 5, so that when the bag is formed as in Fig. 8, the side folds lie in the areas of the reinforcement. Alternatively, the web may have transverse areas of reinforcement as in Fig. 5 from which a bag as in Fig. 6 is made. Similar reinforcement may be provided for top and bottom folds, Fig. 3 (not shown).
Patent GB-468522-A (GB)
Title: Improvements in vacuum-tight joints for electrodes penetrating through the bottom of ionic valve metal vessels
Filed: 1936-02-15
Abstract: 468,522. Discharge apparatus. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Feb. 15, 1936, No. 4633. Convention date, Feb. 27, 1935. [Class 39 (i)] Electrodes are sealed through the bottom of an ionic valve, having a metal vessel, by means which comprises two members, one of which consists of insulating material, wherein the inner member has a peripheral flange adapted to form an upwardly open annular recess which embraces the outer member so that the space between the members can be filled with a sealing liquid outside the tightlyfitting solid surfaces. An anode bolt 1 passes through the bottom of the vessel 3 and is insulated therefrom by an insulator 2. A flange 4 is welded on the bolt and a joint is made through packing 5 between a plane surface of the flange and a ground part of the insulator. A similar joint through packing 9 is formed between the vessel 3 and the insulator and ring 8 welded to the vessel projects into a recess in the insulator. Packings 9, 10 prevent spilling of the sealing mercury. A grid lead comprises parts 11, 12 connected by mercury in the space 13 and sealed by cement 12.
Patent GB-1373633-A (GB)
Title: Method of applying clinch nuts to a panel
IPC: F16B27/00
Filed: 1971-10-14
Abstract: 1373633 Punching MACLEAN-FOGG LOCK NUT CO 14 Oct 1971 [23 Oct 1970] 04733/74 Divided out of 1373631 Heading B3W The disclosure is the same as that of the Parent Specification 1,373,631, but the claims relate to a method of attaching a clinch nut 20 having a shank to a panel 21 using a die 25 having a top panel-supporting surface encompassing a recessed die area 25A in which side surfaces slope downwardly and inwardly to a continuous, co-planar cutting edge 24A surrounding a die cavity 24, the method comprising locating the nut with its shank axially aligned with the die cavity, applying force to the nut to move it linearly towards the die cavity causing downward and inward flexing of the panel 21 located between the nut and the die, into the recessed area 25A and the punching of a slug from the panel which conforms to the shape of the cutting edge and differs from that of the shank and forcing the shank into the hole in the panel to mount the nut on the panel and effect securement of the nut in its mounted position. As shown, metal is shaved from the shank as the shank is driven into the die cavity and compressed in a recess 32 at each corner of the nut to secure it to the panel.
Patent GB-563265-A (GB)
Title: Improvements in friction hinges for windows and the like
IPC: E05D7/08
Filed: 1943-03-23
Abstract: 563,265. Friction pivots. AKTIEBOLAGET SVEAEXPORT. March 23, 1943, No. 4738. Convention date, Sept. 30, 1942. [Class 65 (ii)] A friction pivot for a window &c. comprises plates 4, 5 fixed respectively to the frame and the window, and a pin 9 fixed to 5 by means of a tongue 8 and screws 6. A series of discs 12 is threaded on the pin, alternate ones being fixed thereon by engaging grooves in the pin, while the others pivot thereon. A spiral spring 21 adjustable by means of nut 22 and washer 20 presses the discs together. The pin 9 pivots on the disc 4 and the discs which pivot on 9 are fixed to 4 by a pin 15 on 4 engaging holes 13 in the discs.
Patent GB-1454082-A (GB)
Title: Process for petroleum sulphonate and white mineral oil manufac ture
IPC: C07C309/02
Filed: 1974-02-01
Abstract: 1454082 White oils WITCO CHEMICAL CORP 1 Feb 1974 [2 Feb 1973] 04746/74 Heading C5E Pharmaceutical grade white oil having a ultra-violet absorbence of 0À1 at at least one point in the 260 to 350 millimicron range are made by: (a) treating a hydrocarbon feed having a viscosity between 40 and 750 S.U.S. at 100‹ F. with a mixture containing an inert diluent and at least 10% by weight of sulphur trioxide to increase the unsulphonateable residue to at least 95% and remove petroleum sulphonates having a molecular weight as the sodium salt between 350 and 600; (b) hydrogenating the treated oil at 1,000-3,000 p.s.i.g. hydrogen, 450-850‹ F. and a liquid hourly space velocity of 0À1 to 6 using a supported nickel-molybdenum, cobalt-molybdenum, or nickel-cobalt-molybdenum catalyst to produce a hydrogenated oil of colour + 20 Saybolt or higher and a ultra-violet absorbence at 275 millimicrons of 10-40 and a sulphur content below 30 p.p.m.; and (c) further hydrogenating the hydrogenated oil at 2,000-4,000 p.s.i.g. hydrogen, 400-800‹ F. and a liquid hourly space velocity of 0À1 to 6 using a catalyst comprising 44 to 66% by weight reduced nickel on kieselguhr. In examples feeds, which have been pretreated by solvent extraction or solvent dewaxing, are treated at 120-140‹ C. with either two or three successive batches of fuming sulphuric acid containing 20% by weight of oleum and neutralized with isopropanolic sodium hydroxide solution. The cataylst used in the first hydrogenation (b) suitably has a support of alumina or kieselguhr.
Patent GB-1022908-A (GB)
Title: Improvements in or relating to fabric linking machines
Inventor: MATTHEWS DENIS
IPC: D05B7/00
Filed: 1964-02-05
Abstract: 1,022,908. Sewing machines. MATTHEWS &  BIRKHAMSHAW Ltd. Feb. 2,1965 [Feb. 5,1964], No. 4785/64. Heading D1G. In a linking machine the points are provided in groups, the points of each group being set in a block and the blocks being secured end to end in a channelled support. As shown, a ring dial 3 is formed with an annular channel 3a housing segmental die-cast metal blocks 23 which abut end to end and are secured therein by screws 25, and which carry the points P. The number of blocks is equal to the number of teeth in a ring gear 15 on dial 3 divided by the number of teeth in a driving pinion meshing with gear 15, and the number of points in a block is equal to the number of teeth in a changeable worm gear mounted co-axially with said pinion.
Patent GB-894379-A (GB)
Title: Interlocking mechanism for single lever and auxiliary lever boat engine control
IPC: B63H21/22
Filed: 1961-02-09
Abstract: 894,379. Regulating. MORSE, J. F. Feb. 9, 1961, No. 4836/61. Addition to 879,083. Class 7(6). The single lever control unit described in the parent Specification is provided with means in the interlocking mechanism which provides a limited advance of the auxiliary throttle lever within the clutch shifting range of the main control lever. The auxiliary throttle lever 54 Fig. 9 can be moved to the position shown since the ball 56 can ride on to the arcuate portion 155B without causing movement of plunger 57 to engage the notch 61 and prevent clutch shifting.
Patent GB-512712-A (GB)
Title: Improvements in and relating to quick make and break electric switches
IPC: H01H11/00
Filed: 1938-02-17
Abstract: 512,712. Contact-members for switches. DORMAN & SMITH, Ltd., and SMALLEY, T. Feb. 17, 1938, No. 4894. [Class 38 (v)] In a snap action switch in which movable contacts 10 are mounted on a rotatable bar 9 which extends across a switch case 5, the bar 9 is removable to allow access to leads 14. The bar 9 is supported at one end by a two pin plug and socket joint with a barrel 7 which carries snap action mechanism operated by a handle 6, and at the other end by a spigot and socket joint with a screw 8. Upon unscrewing the member 8 the bar 9 is removable.
Patent GB-211893-A (GB)
Title: Improvements in electric discharge devices
IPC: H01J17/52
Filed: 1924-02-26
Abstract: 211,893. British Thomson-Houston Co., Ltd., (Assignees of Kingdon, K. H.). Feb. 26, 1923, [Convention date]. Vacuum tubes.-In a thermionic valve having a cathode 2 capable of forming during the operation of the valve a surface film having a higher selection emissivity than the material which the cathode is mainly composed, the filling is of hydrogen at a pressure of several microns up to several mms. of mercury. The cathode may consist of tungsten containing three-quarters of one per cent of thoria. The pressure of the hydrogen filling is preferably 100 microns, at which pressure volt- - ages up to 125 volts may be applied between the anode 3 and cathode without cathode sputtering due to bombardment by positive tons. After evacuation and baking in the usual way, the bulb is filled with pure, dry hydrogen, and is aged while connected with the supply of hydrogen so as to avoid cleaning-up during subsequent operation. The anode may have closed ends through which the filament is passed. A palladium tube 10 sealed into a glass tube 11 may be heated to provide an additional supply of hydrogen. A reducing agent such as magnesium 9 may be placed in the bulb. A filament which has lost its emissivity owing to the critical voltage being exceeded during a short-circuit on the load 15, may be restored by opening the switch 16 or by raising the temperature of the cathode to about 2100‹ absolute for a short time.
Patent GB-557934-A (GB)
Title: Improvements in and relating to braking devices for electric motors
IPC: F16D59/02
Filed: 1942-04-15
Abstract: 557,934. Unindirectional friction brakes. BRITISH THOMSON-HOUSTON CO., Ltd., and STRETTON, A. T. April 15, 1942, No. 4991. [Class 103 (i)] [Also in Group XXXVII] The shaft 13 of a motor is held stationary when the motor is de-energised by a friction brake 21, 22. When the rotor is energised it turns slightly on the shaft and a cam sleeve 14 forces a sleeve 16 away from the rotor against the action of a spring 17 and separates the braking surfaces 21, 22. The sleeve 16 is splined to the shaft so that the rotor thereupon drives the load. The sleeve 16 may be provided with fan blades 23 so as to ventilate the motor. Modifications include forming the cam so that the sleeve 16 is pulled towards the rotor to release the brake ; forming the cam so that the brake is released for both directions of rotation ; forming the cam so that the brake is applied harder or is locked if motor tries to rotate in one direction ; substituting for the cam a link mechanism ; and substituting a multoplate brake or a cone brake for the singled plated brake shown in Fig. 1. Other modifications are described in the Provisional Specification.
Patent GB-797963-A (GB)
Title: Improvements in or relating to thickening agents
IPC: C08F8/00
Filed: 1956-02-17
Abstract: A thickening agent is obtained by heating a styrene-ethylenically unsaturated dibasic acid copolymer with at least 1 per cent of a polyoxyethylated derivative of a monohydric alcohol of 12 to 18 carbon atoms, e.g. the reaction products of ethylene oxide and lauryl, myristyl, palmityl and stearyl alcohols, such as that known as "Emulphor ON."  Acids specified are maleic, itaconic, citraconic and mesaconic, and anhydrides thereof may also be used.  The components may be reacted in the dry state or in an inert medium such as toluene.  The polyoxyethylated derivative is preferably present during the copolymerization of the styrene and the acid, which reaction may be effected in toluene using benzoyl peroxide as catalyst and with further styrene and catalyst being added during the polymerization.  The products are of improved viscosity, as determined on their partial or complete alkali salts, and may be used as thickeners for rubber latices.