baber/WOPTO huggingface dataset:
Patent GB-866738-A (GB)
Title: Improvements relating to cutting elements
IPC: B23D73/00
Filed: 1957-07-31
Abstract: 866,738. Files and rasps. BOOTH, C. H. July 31, 1958 [July 31, 1957], No. 24213/57. Class 61. [Also in Group XXII] A cutting-element for hand or power-operated surfacing-tools, comprises a number of cutterblades secured to carrier-means in spacedrelation one behind the other, the blades being lengths of hardenable strip-material, each having along a long-side a hardened and sharpened chisel-like-edge with substantial rake-angle, and means on or between the blades to rub upon the work and limit the depth-of-cut. As shown in Figs. 1 and 2, a pair of nat, rectarigular, sheet-metal carrier-elements 1, 2, are formed with rectangular slots 3 to receive the rectangular cutter-blades 4 having sharpenededges 5. Each blade has a groove into which metal from the carrier is extruded at 11, to secure the parts. The cutting-edge is interrupted by a series of notches 6, the bottoms of which present ramp-like-surfaces to the work. The ends of the members 1, 2, are connected by a pair of struts 12, and a handle may be provided. In a modification, the blades are curved. In other modifications, the groove in the blade is replaced by a pair of spaced-recesses, or by lugs or brackets for attachment of the blade to the carrier. In other modifications, the notches 6 are dispensed with, and other means of limiting the depth-of-cut are provided. As shown in Fig. 7, rearwardly or forwardly-benttongues 21 are provided. Fig. 14 shows U- shaped blades, one limb 25 of each carrying a cutting-edge 5<SP>1</SP> and the other limb 26 terminating in a non-cutting edge 27. Specifications 695,859 and 856,252 are referred to.
Patent GB-697330-A (GB)
Title: Improvements in or relating to dynamos
IPC: H02K1/27
Filed: 1949-09-21
Abstract: 697,330. Machines with permanent magnets. MILLER & CO., Ltd., H., and MILLER, M. Dec. 20, 1950 [Sept. 21, 1949], No. 24230/49. Class 35. A rotor for a cycle dynamo has a permanent magnet 1 mounted upon a non-magnetic carrier 3 (Fig. 3), having two depending arcuate cheeks 4 whose peripheral edges are spanned on the outside by pole-pieces 2. The parts 2a of the polepieces 2 are flat so as to seat closely against the corresponding flat side of the magnet 1. The pole-pieces 2 are assembled and secured to the disc - shaped carrier 3 (Fig. 2, not shown), by a disc 9 having apertures 8 through which projections 7 of cheeks 4 pass.
Patent GB-302391-A (GB)
Title: An improved coupling device for trailer vehicles
IPC: B60D1/50
Filed: 1927-09-15
Abstract: 302,391. Hosie , H. J. Sept. 15, 1927. Couplings for tractors.-A bell-crank lever 3, 6, is pivoted at 2 to a bracket 1 on the tractor. A spring-pressed bolt 8 connects the part 6 of the lever with a projection 7 on the bracket. A ball member 11 on the trailer rests in a socket in the lever 3 so that shocks due both to inequalities of the road and of pull are deadened by the spring.
Patent GB-1273821-A (GB)
Title: Sequence switching circuit
IPC: H03M1/00
Filed: 1969-05-13
Abstract: 1,273,821. Sequence switching; television. RCA CORPORATION. 13 May, 1979 [21 May, 1978], No. 24335/69. Headings H3T and H4F. [Also in Division G4] A plurality of loads are energized in turn through respective pairs of switches, one (QH) of each being normally conductive and one, (QL) normally non-conductive, the normally non-conductive switches being made conductive in turn, each, after the first, cutting off the previous normally conducting switch. If a rising waveform e.g. a ramp, a step-wave or an analogue signal, is applied at 102 across a potentiometer 2 the transistors QL1 to QLn successively become conductive to energize loads Z 1  to Z n , exemplified by light-emitters or photosensitive devices of a scanning array. Each transistor QL, after the first, is coupled to the previous transistor QH so that when a QL transistor becomes conductive it switches off the previous QH transistor and only one load is energized at a time. When the input across the potentiometer is an analogue voltage the number of circuits pulsed is a measure of the magnitude. Reference is made to serial and parallel outputs. The field effect transistors may each be replaced by bipolar transistors and the potentiometer may be replaced by a Zener diode chain. In Fig. 5 a rising current applied at 102 flows initially mostly from QL1 so that ZL1 is energized. When QL1 is saturated an increased proportion of the current flows from the emitter of QL2 so that QL2 conducts, energizing ZL2 and switching off QH1. Successive loads are thus energized.
Patent GB-1392067-A (GB)
Title: Shaft seal
IPC: F16J15/34
Filed: 1972-05-24
Abstract: 1392067 Shaft seals AEROQUIP (UK) Ltd 26 March 1973 [24 May 1972] 24391/72 Heading F2B A shaft seal arrangement, e.g. for a water pump impeller comprises a housing 10, a rotatable shaft 11 bearing a member 12 defining a radially extending face 17 parallel to a face 16 of the housing 10 and a resilient sealing element 13 against which the member 12 is biased. The element 13 may be generally circular in crosssection, Fig. 1, generally square, Fig. 3 (not shown), of generally three or four-lobed undulating form, Figs. 2 and 5 (not shown), or of tapered section, Fig. 4 (not shown), a radially extending face being provided for sealing engagement with the housing 10. Further, Fig. 7, (not shown), a wear resisting insert (721) may be provided on the element (713) for engaging the housing (710).
Patent GB-1143417-A (GB)
Title: Production of 2,2-dimethylpropanol-(3)-al-(1)
Inventor: PLATZ ROLF
IPC: B01J31/08
Filed: 1966-06-01
Abstract: 1,143,417. Aldol condensation. BADISCHE ANILIN- & SODA-FABRIK A.G. 1 June, 1966 [2 June, 1965], No. 24422/66. Heading C2C] Production of 2,2-dimethylpropan-3-ol- 1-al by passing isobutyraldehyde and aqueous formaldehyde downwards over a basic ion exchange resin in carbonate form contained in a column having a length to diameter ratio of more than 5: 1 and which is kept at a temperature of from 85‹ to 100‹ C. In the preferred process 0À5 to 3À0 moles of formaldehyde are used per mole of isobutyraldehyde. The ion exchangers are obtained in conventional manner from commercial polyvinylbenzylammonium, polyalkylenimine and polyalkylenamine resins containing hydroxyl groups by treating with aqueous carbonate ions and washing with water.
Patent GB-598859-A (GB)
Title: Improvements in or relating to railway carriages, ships, road-vehicles, aeroplanes and caravans having sleeping compartments or cabins
IPC: B63B29/02
Filed: 1945-09-21
Abstract: 598,859. Sleeping compartments &c. MARSHALL, R. Sept. 21, 1945, Nos. 24450 and 29871. [Classes 103 (iv) and 108 (i)] [Also in Group XXXIII] In a space-saving cabin arrangement for railway carriages, and caravans and other road vehicles, each cabin 2, 4 is provided in staggered formation with a full-sized berth that has a hinged portion 1<1> 3<1> and a fixed portion 1, 3 at high and low level respectively, in adjacent cabins, the fixed portions 1, 3 of the berths overlying one another The berths extend longitudinally in a centre corridor coach as shown and transversely in a side-corridor one. In each construction, the upper berth is boxed in by a partition 5<1>. The berths may be hinged longitudinally or be in three parts separated transversely. In a modification, the fixed parts of the berths are arranged horizontally opposite at the same level in staggered formation along the walls of the centre corridors, an angularly disposed partition separating the fixed portions of the berths. Entrance to the compartment containing the berth along the corridor wall is obtained through a door in a transverse corridor.
Patent GB-871519-A (GB)
Title: Improvements in or relating to apparatus for sub-dividing cylindrical articles
IPC: A24D3/02
Filed: 1956-07-16
Abstract: 871,519. Making mouthpiece cigarettes. MOLINS, D. W., ROWLANDS, T., and .MOLINS MACHINE CO. Ltd. July 16, 1957 [July 16, 1956], No. 24490/60. Divided out of 871,514. Class 130. Cigarette-mouthpiece groups, the elements of which have been united by rolling gummed sheets around them in a passage formed between a rotary drum 26 and a fixed guide 131, are subdivided by a disc knife 134 which projects into the passage a distance of between a group radius and diameter. As shown, the groups, consisting of double-length mouthpieces flanked by cigarettes, may be formed as described in Specification 871,514 are pushed into the passage by a reciprocatory member 17.
Patent GB-502859-A (GB)
Title: Improvements in or relating to containers and chemical heating means therefor
IPC: A47J36/28
Filed: 1937-09-21
Abstract: 502,859. Heating by chemical action. THERMIT GES. Sept. 21, 1937, No. 25646. Convention date, June 26, 1937. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 18, 1938.] [Class 64 (ii)] In a food container having means for heating the contents by chemical action, a sheet-metal cylinder 1 is connected by beads 32 with annular sheet-metal rings 33, the inner edges of which are turned in at 3311 to form grooves for the reception and location of a food container 35. The annular space between the latter and the outer casing 1 contains a substance 36 which emits heat on the addition of water from an annular vessel 37 when the latter is pierced. The vessel 37 may be of celluloid or other deformable material and is easily crushed by the expansion of the heat-emitting substance 36. Further provision for expansion may be made by a corrugated member 45.
Patent GB-866457-A (GB)
Title: An improved method for testing tubes by ultrasonics
Inventor: TERRY DENIS
IPC: G01N29/24
Filed: 1958-07-31
Abstract: 866,457. Ultrasonic flaw detection. ACCLES & POLLACK Ltd. July 17, 1959 [July 31, 1958], No. 24663/58. Drawings to Specification. Class 40(7) . In a method of ultrasonic detection of flaws in a tube two transducers are at opposite inclinations to a plane normal to the tube axis and spaced apart in a direction parallel thereto, and relative movement between the transducers and the tube in a direction parallel to its axis is imparted whilst the tube is rotated. The dispositions of the transducers are such that waves reflected at the tube surface do not enter the receiver and such that compressional waves generated at the tube surface are totally reflected whereas shear waves generated there are refracted. Mathematical treatments relating to two arrangements are given, Figs. 1 and 2, and 4 and 5 (none shown); in the latter case, for use with tubes having rough surfaces, spurious reflexions are obviated by an acoustic screen embracing the tube. The tube may be mounted for rotation in a liquid bath in which the transducers also are submersed, the latter being mounted for translation on a carriage. Each transducer may be a transceiver and flaw indication is given by a cathode-ray tube.
Patent GB-277703-A (GB)
Title: Improvements in or relating to safety suspension devices for lifts or elevators
IPC: B66B5/26
Filed: 1927-09-19
Abstract: 277,703. Janotta, F. Sept. 18, 1926, [Convention date]. Catch gear of mine-cage type. -Safety suspending gear of the type having discs adapted to be engaged and rotated by the lift guides in order to effect the engaging with the guides of the gripping arms, has the discs retarded by a roller and groove arrangement, the axles and pivot pins of the discs and gripping arms being mounted in curved slots. Casings A mounted on the outside of the cage B adjacent to the guides 1 have curved slots 4, 5 in which are respectively mounted the axles of the guide engaging discs 2 and the pivot pins of the gripping arms 8, the gripping arms being also mounted on the axles of the discs. The gripping arms are connected by linkage 14 to a sliding plate 16 to which a cable 21 connected to the hoisting rope is connected. A spring 19 acting against an abutment 20 is normally compressed by the pull of the hoisting rope. When the hoisting rope breaks, the spring acting on the linkage causes the discs to engage the guides. The discs are braked by means of laterally arranged rollers 9 engaging spiral grooves 11 on the discs, the arrangement being such that the jaws 7 of the gripping arms are caused to gradually engage the guides and stop the cage. Specification 249,743 is referred to.
Patent GB-1448796-A (GB)
Title: Operating magnifier and miniature ophthalmoscope
IPC: G02B25/02
Filed: 1974-06-04
Abstract: 1448796 Opthalmoscope MELBOURNE UNIVERSITY OF 4 June 1974 24768/74 Heading G2J An apparatus worn by a surgeon provides either a magnified view of the body by lenses 32, 15 (lower position) or if the slides 27 are arranged as in the upper position a narrow field of view is produced by mirrors 24, 18. A suitable light is associated with the equipment and a prism can be arranged to allow a student also to view the operation.
Patent GB-794320-A (GB)
Title: Improvements in fluid cooled capstan block
IPC: B21C1/14
Filed: 1956-08-14
Abstract: 794,320. Drawing. SYNCRO MACHINE CO. Aug. 14, 1956 [Aug. 15, 1955], No. 24857/56. Class 83 (4). A drawing drum has a cooling fluid passage 64 within the wall 24 to which fluid is supplied through a conduit 32 from a supply pipe 42 in the hollow capstan shaft 10. The drum comprises an inner cylindrical wall member 20 supporting a telescoped drum member 24 shaped to form an annular channel for a helical heat exchanger 64 which is embedded in a heat conducting material 78 such as a low melting alloy or lead. Inlet and exhaust pipes 66, 70 on the heat exchanger have sealed couplings 74, 76 within a cover-plate 28 attached to the top of the drum. Bores 58, 32 in the cover 28 provide a conduit from the supply pipe 42 and the bore 34 provides an exhaust conduit to the central bore in the capstan shaft 10. In a modification, Fig. 2 (not shown), pipe connections are provided to the heat exchanger from the capstan shaft and in a further modification, Fig. 3 (not shown), the heat exchanger is an integral part of the drawing drum which has a helical passage in its cylindrical wall.
Patent GB-502106-A (GB)
Title: Process and apparatus for the production of metallic barium
IPC: C22B26/20
Filed: 1937-09-13
Abstract: 502,106. Extracting barium; furnaces. I. G. FARBENINDUSTRIE AKT.- GES. Sept. 13, 1937, No. 24861. Convention date, Jan. 9. [Class 82 (i)] [Also in Group XII] Metallic barium is reduced from material containing barium oxide by heating the material with aluminium or silicon or both, condensing the barium vapour in vacuo to liquid form at 730-800‹ C., and pouring the products in vacuo into an unheated receptacle. The apparatus shown comprises a tilting electric furnace in the zone a of which the charge d, preferably briquetted, is heated for reduction ; the barium vapour is condensed to liquid form in a receiver e. in a less highly heated zone b of the furnace, and the liquid product is poured into a mould.f in an unheated zone c by tilting the furnace.
Patent GB-721333-A (GB)
Title: Concentrated ready-to-dye liquid sulfur dyestuffs
Inventor: ROBINSON EWEN DAVIDSON
Filed: 1952-10-06
Abstract: The invention comprises a concentrated filterable aqueous solution of a reduced sulphur dye containing a small amount of a hydrotropic agent.  The solutions have a relatively high concentration of dye and an improved stability against precipitation or tar formation, e.g. in an alkalinity of 2-4 per cent.  Representative of dyes mentioned are those made by thionating 1 - arylamino - 41 - hydroxyphenyl-4-amino-naphthalene and the 6, 7, or 8 sulphonic acid thereof, 4-dimethylamino-41-hydroxy-diphenylamine, sulphur black and sulphur olive.  Representative of hydrotropic agents mentioned are the sodium, potassium and ammonium salts of xylene sulphonic acid, naphthalene sulphonic acid, metanilic acid, tetrahydronaphthalene b -carboxylic acid, dibenzyl sulphanilic acid, salts of isovaleric acids and sulpho betaines.  Sodium xylene sulphonate and p-toluene sodium sulphonate are preferred hydrotropic agents.  Solvents such as glycols, polyglycols or glycol ethers may also be present.  Generally the amount of hydrotropic agent used is from 3-15 per cent based on the weight of the final solution.  The solutions may be prepared by adding the dyestuff press cake to a solution of the hydrotropic agent with subsequent addition of reducing agents and alkalis if desired. In examples: (1) a sulphur green press cake is described in an aqueous solution of p-toluene sodium sulphonate, sodium sulphide and sodium hydrosulphide; (2) a sulphur blue press cake is described in an aqueous solution of tetrahydronaphthalene sodium sulphonate, sodium disulphide and sodium hydrosulphide; (3) a sulphur blue press cake is described in an aqueous solution of xylene sodium sulphonate and sodium hydrosulphide; (4) a sulphur tan press cake is dissolved in an aqueous solution of xylene sodium sulphonate, caustic soda and sodium hydrosulphide and in (5) a sulphur brown press cake is dissolved in an aqueous solution of sodium xylene sulphonate, caustic soda, thiodiethyleneglycol and sodium hydrosulphide in each case heating is required to effect solution.
Patent GB-317649-A (GB)
Title: Improved means for facilitating the sinking of caissons and like tubular bodies
IPC: E21B10/32
Filed: 1928-08-31
Abstract: 317,649. Wolfsholz, A., and Barr, J. F. Aug. 31, 1928. Borehole apparatus. - An expanding boring tool for use in sinking caissons and other tubular bodies comprises resilient cutters 7 secured at their lower ends to a ring 4<1> fixed above a spiral point 6 and at their upper ends to a ring 4 slidable on the driving tube 5; the ring 4 may be adjusted by a rod provided with means for securing it to the tube 5.
Patent GB-674767-A (GB)
Title: Improvements in or relating to wired broadcasting systems
Inventor: TATE CLIFFORD EDWARD
IPC: H04H20/77
Filed: 1949-09-29
Abstract: 674,767. Distributing music &c. COMMUNICATIONS PATENTS, Ltd. Dec. 28, 1950 [Sept. 29, 1949], No. 25079/49. Class 40 (iv). In a wired broadcasting system comprising audio-frequency and carrier channels the carrier signals are injected into the line via a transformer the secondary of which is connected across the line by way of a seriesresonant circuit presenting low impedance to carrier signals and high impedance to audiofrequency signals. In the embodiment one audio-frequency channel and one carrier channel are provided. The audio-frequency programme is fed to the line 1 by means of transformer 2 and H.F. chokes 3 at a maximum R.M.S. voltage of not less than 50 volts. The second programme is applied as audio-frequency signals to the amplifier 7, the output of which modulates the carrier (94 kc/s.) from oscillator 9 in the modulator and H.F. amplifier 8. The modulated carrier is then fed through filter 10 having a pass-band of 84 kc/s. to 104 kc/s. to transformer 11, each end of the secondary winding of which is connected to a separate conductor of line 1 by a series-resonant circuit 12, 13 tuned to the carrier frequency.
Patent GB-317457-A (GB)
Title: Improvements in or relating to compositions of matter comprising derivatives of cellulose, and articles derived therefrom
IPC: D01F2/28
Filed: 1929-08-16
Abstract: 317,457. British Celanese, Ltd., (Assignees of Moss, W. H., and White, B. B.). Aug. 16, 1928, [Convention date]. No Patent granted (Sealing fee not paid). Adhesives.-Compositions for use in the manufacture of adhesives comprise a cellulose derivative and a sufficient proportion of a soluble and fusible synthetic resin to impart an increased tensile strength to the products, the amount of synthetic resin being from 1 to 25 per cent and preferably from 5 to 10 per cent of that of the cellulose, derivative. The cellulose derivatives which may be used include cellulose nitrates, organic esters of cellulose such as the formates, acetates, propionates, and butyrates, and cellulose ethers such as the methyl, ethyl, and benzyl ethers. Suitable synthetic resins are the soluble and fusible phenolformaldehyde resins, resins from diphenylolpropane and formaldehyde or acetone, phenol-furfural resins, and resins from benzene-, p-toluene, or xylene-sulphonamide and formaldehyde. The compositions may include also (1) natural gums or resins such as mamilla, acaroid resins, rosin, shellac, or ester gum; (2) known plasticizers such as diethyl phthalate, triphenyl or tricrersyl phosphate, monomethyl toluenesulphonamide, triacetin, diphenylolpropane, or thiocarbanilide; (3) medium and/or high-boiling solvents such as ethyl acetate or lactate, tetrachlorethane, benzyl alcohol, or diacetone alcohol; (4) low-boiing solvents such as acetone, ethyl alcohol, benzene, or ethylene dichloride; (5) fire-retardants such as bromotricresyl phosphate.; and (6) dyes or pigments, as desired. Examples are given. Specifications 317,454, [Class 70, Indiarubber &c.], and 317,456 are disclaimed.
Patent GB-1490175-A (GB)
Title: Centrifuge drum
IPC: B04B7/18
Filed: 1976-06-17
Abstract: 1490175 Centrifuge drum BRAUNSCHWEIGISCHE MASCHINENBAUANSTALT 17 June 1976 [19 June 1975] 25105/76 Heading BID The cylindrical drum of a centrifugal strainer encloses a filtering screen 2 which is restrained from sliding relative to the drum by providing roughened areas 6 and 7, on the abutting surfaces of the screen and supporting structure. As shown the supporting structure is a wire mesh, which provides filtrate drainage channels and is flattened at cross-over points to increase roughened areas 7 (Fig. 4 not shown). Alternatively the drum is internally grooved and the screen rests directly thereon. Roughened areas are provided by electroplating, grinding or sandblasting or by coating with suitable material. They may extend over the whole area of screen and supporting structure or just round an annular zone.
Patent GB-183071-A (GB)
Title: Apparatus for moulding walls, columns and the like in situ
IPC: E04G17/07
Filed: 1921-09-22
Abstract: 183,071. Henderson, J. Sept. 22, 1921. Moulding walls in situ.-A bolt L for use in securing shuttering is formed with a head F adapted to embrace the edges of adjacent panels, and used with a washer H acting in a similar manner, and is fixed by a key J. The shutters have grooved metal plates A in their ends, and perforated metal plates C in their top surfaces so that, when assembled, the end grooves form passages for connecting cross-bars, and pins D on the bottom edge of the superposed shutter engage the perforations in the plates C. For intersecting shutters a vertical rail X on one shutter is modified to suit the angle, Fig. 4.
Patent GB-241211-A (GB)
Title: An improved self-locking nut and bolt
IPC: F16B39/30
Filed: 1925-10-08
Abstract: 241,211. Soc. Franþaise de Filetage Indesserrable D. D. G., (Assignees of Dardelet, H. L.). Oct. 9, 1924, [Convention date]. Screw-and-nut mechanism.-A self-locking nut and bolt a, b for use in clamping together parts c, c, is so constructed that the tangent of the angle a which the bearing face of the thread makes with a parallel to the axis in a plane pass ing through the axis of the bolt is less than the coefficient of friction of the metals in contact'. The pitch of the thread is made correspondingly great, and in the limiting case is infinite as shown in Figs. 3 and 4 in which the thread constitutes a projection r<1> parallel to the axis of the bolt. In this case, the bolt is turned relatively to a fixed nut a<1> to obtain a locking effect. Specification 239,486, [Class 89 (i), Bolts &c.], is referred to.
Patent GB-1011219-A (GB)
Title: Apparatus for storing sheet material
IPC: B27L5/00
Filed: 1964-06-18
Abstract: 1,011,219. Storing sheet material. J. F. BOSSE, and H. W. BOSSE, [trading as OTTO BOSSE]. June 18, 1964 [June 19, 1963], No. 25184/64. Heading B8C. Sheets of veneer 12 are wound on to a rotating drum 3 between the turns of a belt 8, secured to the drum and wound from a roller 9; the turns are compacted by an endless presser band 4 which, in the form shown, drives the drum. Switching contacts are included in the fed member 11 which control the motion of the band 4, so that the sheets are fed continuously to the drum 3. The drum may be removed for storage. To withdraw the veneers, the whole pulley system 5, 6 is turned through 180 degrees about the shaft 10 and the drive to the belt 4 reversed so that the belts 4 and 13 feed the veneers away from the drum to the left in Fig. 1.