baber/WOPTO huggingface dataset:
Patent GB-715693-A (GB)
Title: Improvements in or relating to circuit arrangements for operating low pressure electric discharge lamps
IPC: H05B41/39
Filed: 1951-07-30
Abstract: 715,693. Supply systems for space discharge devices; transformer arrangements. GENERAL ELECTRIC CO., Ltd., and WILLIAMS, C. E. July 29, 1952 [July 30, 1951], No. 18006/51. Class 38(4) A dimming circuit arrangement for a plurality of hot or cold cathode electric discharge lamps comprises a first group of two or more transformers 1, 2 whose primary windings 3, 4 are serially connected with each other and with a dimming impedance 5 to constant voltage A.C. supply terminals 6, 7, a second group of two or more transformers 8, 9 whose primary windings 10, 11 are similarly connected and are therefore in parallel with those of the first group, the secondary winding 12, 13 of each first group transformer being connected in series with both a secondary winding 14, 15 of a second group transformer and one or more series connected lamps 16, 17, and the induced voltages in each such secondary circuit being additive to one another. The dimming impedance 5 may be a variable resistor, and one side of each secondary winding may be earthed. If the lamps are of the hot cathode type, electrode heating arrangements are provided.
Patent GB-292542-A (GB)
Title: Apparatus for drying potatoes or the like
IPC: F26B17/20
Filed: 1928-06-21
Abstract: 292,542. Fehrentheil und Gruppenberg, H. von, and Oranienburger Eiswerke J. Schmidt. June 21, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Helical-blade conveyers.-Potatoes, rape, corn &c. to be dried are traversed through a series of troughs, embedded in masonry having flues 4, 13, Fig. 3, for the passage of furnace gases, by helical blades 7, the shafts of which carry pins 14, Fig. 4, for breaking up agglomerated masses. Perforate plates 16 may also be provided in the troughs. The material is fed through a hopper 10 into the first trough and discharged laterally into successive troughs by rotary arms 11 mounted on the helical-blade shafts. The air above the troughs may be agitated by vanes mounted upon an horizontal rotary shaft which may be hollow and perforated and supplied with air.
Patent GB-138552-A (GB)
Title: An improved tool for cutting boiler stay and other tubes
IPC: B23D21/14
Filed: 1919-07-18
Abstract: 138,552. Bingham, E. July 18, 1919. Internal pipe cutters. -A tool for cutting boiler-stay and other tubes internally comprises a series of sections, each carrying a pair of cutting-tools, and expanded and rotated by a tapered mandrel having flat or fluted sides, the sections being guided in radial slots in the stop ring. Three body-sections 2 are secured at one end by screws 3 to segments 4 of a conical spring 5, each screw also clamping one cutter 1 of each pair to its section. Guides 6 are secured by screws 7 to the other end of the body-sections, the screws also clamping the other cutters 1<A>. The guides engage radial slots 9 in the stop ring 11, marks on the flange 10 of the ring and on the guides showing the depth of cut. The sections are shaped and hardened to receive a tapered hexagonal or other mandrel 13, which is fed longitudinally by a press or drill-head to expand the sections and is rotated by a portable electric or compressed-air motor to effect the cut. One cutter of each pair is situated at or near the centre of the tube plate 1. The other set of cutters may project slightly more than the first set so that they may cut through the tube first. The cut-off pieces at the ends of the tube may be removed by bending.
Patent GB-1160060-A (GB)
Title: Cable Joint Sealing
Inventor: EYRE JOHN RICHARD
IPC: H02G15/192
Filed: 1968-04-17
Abstract: 1,160,060. Sealing cable joints. STANDARD TELEPHONES & CABLES Ltd. 17 April, 1968, No. 18079/68. Heading H2E. A sealing arrangement for temporarily protecting an incomplete joint 3 between insulated cables 1, 2 comprises rigid polythene sleeve 5 surrounding the joint and extending over the cable ends, rigid, e.g. wooden, spacers 6 mounted round each cable end and close-fitting within sleeve 5 for supporting it, flexible P.V.C. gaiters 9 at either end of sleeve 9 surrounding both the sleeve and a portion of the cable end beyond the sleeve, a pair of circumferential pressureexerting clips 10, 11 for each gaiter, clips 10 compressing the gaiter and sleeve on to the spacing member, and clips 11 compressing the gaiter on to the portion of the cable end, and a valve 14 for applying internal pressure to the sleeve to test for leaks. As shown, the sleeve and cable ends have circumferential bands 7, 8 of aluminium-polythene laminate for use in the final closure of the completed joint. Layer 12 of P.V.C. tape prevents clips 10, 11 cutting into the gaiter and layer 13 of P.V.C. tape prevents entry of silt.
Patent GB-1465885-A (GB)
Title: Model aircraft
IPC: A63H27/00
Filed: 1975-04-30
Abstract: 1465885 Releasable fastenings H NE UHIE RL 30 April 1975 [3 May 1974] 18088/75 Heading E2B [Also in Division A6] A toy aeroplane, &c has each of its wings, &c 1 connected to its fuselage 2 by pins 3 sliding into sleeves 4, &c and has a connector 9 for each wing with a head 10 which when the connector is turned to the position shown, can pass through a correspondingly-shaped hole 30 in the wing, the connector 9 then being turned back through 90 degrees so that its head 10 latches behind the hole 30. As shown, a rubber band 13 is tensioned to pull the connectors 9 towards each other and clamp the wings 1 against the fuselage sides, but alternatively a spiral spring may be employed. The fuselage 2 contains a mounting device 19, having a non-circular cross-tube 23 through which the rubber band 13 passes to engage in a hook 12 of each connector 9. In the pulled-out and turned position of each connector 9, the connector hooks 12 cannot be pulled by the rubber band, &c 13 back into the ends of the tube 23. By turning each connector 9 through 90 degrees, Fig. 5 (not shown), each hook 12 corresponds in shape to the shape of the tube end 23, into which it is then withdrawn, Fig. 4 (not shown). The connector heads 10 and wing holes 30, and equally the hooks, 12 and tube ends 23, may have other non-circular sectional shapes than the rectangular shapes shown.
Patent GB-981599-A (GB)
Title: Improvements in and relating to vibrating conveyors
IPC: B65G27/00
Filed: 1961-05-18
Abstract: 981,599. Jigging conveyers. O. FAHR. May 18, 1961 [May 20, 1960], No. 18178/61. Heading B8A. A perforated jigging trough 1 receives material at b and raises it to discharge it at c, a current of drying air being introduced at a and any surplus liquid flowing off down floor 2. In order to assist the jigging action the arms 4 and 5 which support the conveyer are made non-parallel. Thus arm 4 is adjustable at 8 in the slot shown so that angle α is less than angle α<SP>1</SP>.
Patent GB-546530-A (GB)
Title: Improvements in the purification of aqueous hydrogen peroxide
IPC: C01B15/013
Filed: 1940-12-28
Abstract: 546,530. Distilling & purifying hydrogen peroxide. MATHIESON ALKALI WORKS. Dec. 28, 1940, No. 18182. Convention date, Dec. 29, 1939. [Classes 1 (ii) and 32] Concentrated solutions of hydrogen peroxide (30 per cent. peroxide) obtained in the oxidation of organic intermediates e.g. as described in Specifications 461,589, 501,385 and U.S.A. Specification 2,059,569 are purified with or without further concentration by first removing impurities of lower boiling point than the peroxide by vaporizing water from the solution and passing the solution in countercurrent to the steam produced, separating the vaporised impurities from the water component and returning the latter to the solution, then vaporising the whole of the hydrogen peroxide from the solution under reduced pressure and periodically removing the aqueous residues together with the accumulated impurities therein. The organic impurities include solvents, e.g. hydrocarbon oils, and intermediates, e.g. para-azo-toluene, and their decomposition products while the inorganic impurities include iron, nickel, copper, mercury, and their compounds and silica. The crude peroxide solution is charged to a flask 3 from which it is passed through a sight glass 5 to a packed column 6. The solution flows down the column to a flask 2 heated by a jacket 8 to vaporize the water but not the peroxide. The steam passing upwardly strips the crude solution of volatile impurities and the mixed vapours are condensed in cooler 14 and separated in receiver 16 into water containing a little peroxide, which is returned through line 17 to the column 6, and impurities, which are removed to receiver 19. The stripped solution is then passed through line 12 into a flask 1 maintained under reduced press by pump 22 and heated to such temperature that the hydrogen peroxide is vaporized to leave a residue in which the non-volatile impurities are concentrated and which is rejected at frequent intervals through line 27. The vapours are condensed and passed to receiver 33 and collection vessel 35. A stabilizer, e.g. sodium stannate, sodium pyrophosphate may be added through line 32.
Patent GB-497956-A (GB)
Title: Improved bracing for electrolytic cell bodies
IPC: C25B9/20
Filed: 1937-06-30
Abstract: 497,956. Electrolytic cells. TENNANT, W. J. (Druckzersetzer Ges.) June 30, 1937, No. 18235. [Class 41] A bracing for electrolytic cell bodies, particularly pressure decomposers, has resilient means acting against the tying pressure. Helical springs 3 are inserted between the press plate 1 and the cell body end plate 2. The springs are prevented from bulgirig laterally by providing telescopic guide pins 7, 8. Porcelain insulators 9 are inserted in sockets 10 attached to the end plate 2. Difference in expansion of the cell 5 and tie rods 4 under working conditions is compensated by the springs.
Patent GB-184022-A (GB)
Title: Improved means for locking nuts
IPC: F16B39/32
Filed: 1921-07-06
Abstract: 184,022. Stott, M. July 6, 1921. Locking nuts.-A nut a is locked by a steel spring b which embraces an annular recess a<1> in the nut and has a tooth projection which passes through a radial hole a<2> in the nut and engages a longitudinal slot d in the bolt c. The spring b may have two inturned ends passing through holes a<2> in the nut, and the bolt may be provided with four longitudinal slots. The lock is proof against vibration, but may be overridden by means of a spanner.
Patent GB-948231-A (GB)
Title: Improvements in or relating to numerically controlled machine tools
IPC: B23Q35/00
Filed: 1962-05-11
Abstract: 948,231. Programmed control systems. VYZKUMNY USTAV OBRABECICH STROJU A OBRABENI. May 11, 1962 [July 18, 1961], No. 18301/62. Heading G3N. In a numerical control system for a machine tool correcting impulses for change in the cutter radius, or for maintaining the centre of the tool equidistant from a workpiece, is derived through a mechanical calculating arrangement. A sphere 4 is rotated about two relatively perpindicular axes by rollers 6, 8 driven by selsyns controlled by the movement of a milling machine table or by signals controlling the table. At a point 11, the direction of movement of the sphere surface is dependent on the direction of movement of the table and determines the angular position of a drag roller 5 which is fixed in a fork 12 on a shaft 13. At the lower end of the shaft 13 is a stud 15 the eccentricity of which is adjusted manually in dependence in the cutter radius by means of a crank and micrometer screw 14. The movement of the stud 15 is transmitted to an upper table 16 of a cross-support also having a lower table 17. In the upper table are glass plates 18,19 provided with grids which are at right-angles to each other. Corresponding grids 22, 22<SP>1</SP> are mounted above photo-cells 21, 21<SP>1</SP> and a pulsating signal is generated by each photo-cell dependent on the movement of the table 16 about two relatively perpendicular axes. The pulsating signals are then fed into the numerical control system for the milling machine to correct for cutter radius.
Patent GB-1433648-A (GB)
Title: Switching networks for telecommunications exchanges
IPC: H04Q3/00
Filed: 1974-04-26
Abstract: 1433648 Automatic exchange systems PLESSEY CO Ltd 9 April 1975 [26 April 1974] 18310/74 Heading H4K The matrix switch of Specification (App. 54200/73) having multistage networks as its crosspoints is modified so as to be capable of switching 4/4, 2/2, 2/4 and 4/2 wire connections. Fig. 1 illustrates the simplest case where the top left network NC11 switches 16 groups of 15 trunks on a 4 wire basis. In order to permit the connection of the incoming 4 wire trunks to two-wire outlets the top horizontal row multiple has 4/2 wire converters HA connected therein. Similarly to permit 2/4 working the leftmost vertical multiple has converters HB incorporated therein. The network in the opposite corner of the matrix viz NC2.2, as well as the crosspoint networks in the row and column containing NC2.2 are compulsorily of 2-wire type. Fig. 2 uses internally multipled (i.e. multipled AB links) blocks of networks AB1, AB2, AB3 for its crosspoints (details are given in App. 54200/73). It is necessary in this case therefore to provide converters HC or HH in each of the sets of trunks having appearances on the blocks and located between the 4-wire switches viz NC1.1 and the 2-wire switches. If NC1.2, NC2.1, NC2.2 are to be of 4-wire type these converters are moved to positions P and R while additional converters must be inserted at Q and S. Positions T, U, V, W, X, Y denotes the locations for converters when only the lowermost and rightmost switches are of 2-wire type. In a modification (Fig. 3) two of the blocks AB2, AB3 at crosspoint NC1.1 are of two wire type. The internal multiple must then incorporate converters HM while only the 4-wire terminations on AB 1 require converters HK and HL in the row and column multiples. It should be noted that a separate 2-wire C switch is required for overflow working in respect of the AB2, AB3 blocks. Fig. 4 (not shown) illustrates the case where only AB3 is NC1.1 is of two-wire type.
Patent GB-807986-A (GB)
Title: Improved cable bending tool
Inventor: FRANKUM REGINALD ALEXANDER
IPC: B21D7/02
Filed: 1957-06-11
Abstract: 807,986. Bending-formers. COMMUNICATIONS PATENTS Ltd. June 11, 1957, No. 18354/57. Class 83 (4). A. tool for use in bending cable comprises a first portion which presents a curved surface against which the cable can be brought to bear and a second portion which includes an angularly shaped part adapted for engagement with a correspondingly shaped corner of a building or other structure, the arrangement being such that, when the second portion is so engaged, the curved surface extends at least partly around the corner and at a determined spacing therefrom. The tool, which comprises a one-piece member of aluminium formed with an arcuate channel 3 and an opposite angular cut-out portion 6, is engaged with the corner of a building 9 and a coaxial cable 10, secured to one wall of the building, is forced by hand around and into the channel 3 to bring the rest of the cable alongside the other wall to which the cable can be fixed after removal of the tool. The tool may however be in two or more parts to allow its removal after the cable has been fixed to both walls. The channel 3 may be V-shaped, instead of having parallel side walls 4.
Patent GB-1449068-A (GB)
Title: Device for forming a lens selvage on a fabric
IPC: D03D47/40
Filed: 1974-04-26
Abstract: 1449068 Leno motions; travelling wave shedding looms WIRKMASCHINENBAU KARL-MARX-STADT VEB 26 April 1974 [1 June 1973] 18367/74 Heading D1E A leno selvedge shedding motion for a travelling wave shedding loom with partial heald frames comprises standard half healds 5 fixed to a partial frame 2 to shed therewith and leno healds 7 which are shogged by a cam 15 but are not shed. The height of the leno healds is adjustable and they are movable on the loom to provide different width fabrics and also to provide more than one fabric per loom width.
Patent GB-824048-A (GB)
Title: Coating non-absorbent solid particles with a thermosetting resin
Inventor: HOYT HOWARD EUGENE
IPC: B22C1/22
Filed: 1957-06-11
Abstract: Non-absorbent granules are coated with a thermosetting resin by forming a solution of the resin in a liquid medium including a volatile solvent for the resin and a less volatile liquid mixing promoter that is a non-solvent for the resin, applying the solution to the granules in an amount less than the weight of the granules, mixing the granules and the solution, and causing the volatile solvent to evaporate during the mixing so as to precipitate the resin as a film on the granules.  The granules may be of sand, carborundum, emery, glass and asbestos fibres, or metal powder.  Suitable resins are phenol-, urea-, and melamine-aldehyde resins, and epoxy resins. Hardening agents such as hexamethylene tetramine may be added. Suitable solvents are low-boiling alcohols or ketones, and the mixing promoter may be an aliphatic or aromatic hydrocarbon distilling mainly between 110 DEG  and 200 DEG  C., such as toluene, xylene, petroleum naphtha, and kerosene.  The solution and the granules are mixed in a known type of mixing apparatus.  A portion of the resin may be mixed in dry powdered form with the granules before the remainder is added in solution.  The examples all relate to coating foundry sand with a phenol-formaldehyde resin.ALSO:Non-absorbent granules are coated with a thermosetting resin by forming a solution of the resin in a liquid medium including a volatile solvent for the resin and a less volatile liquid mixing promoter that is a non-solvent for the resin, applying the solution to the granules in an amount less than the weight of the granules, mixing the granules and the solution, and causing the volatile solvent to evaporate during the mixing so as to precipitate the resin as a film on the granules.  The granules may be of sand, carborundum, emery, glass and asbestos fibres, or metal powder.  Suitable resins are phenol-, urea- and melamine-aldehyde resins, and epoxy resins.  Hardening agents such as hexamethylene tetramine may be added.  Suitable solvents are low-boiling alcohols or ketones, and the mixing promoter may be an aliphatic or aromatic hydrocarbon distilling mainly between 110 DEG and 200 DEG  C., such as toluene, xylene, petroleum naphtha, and kerosene.  The solution and the granules are mixed in a known type of mixing apparatus.  A portion of the resin may be mixed in dry powdered form with the granules before the remainder is added in solution.  The examples all relate to coating foundry sand with a phenol-formaldehyde resin.
Patent GB-365968-A (GB)
Title: Improvements in closure devices, particularly intended for milk cans or the like
IPC: B65D45/02
Filed: 1931-06-25
Abstract: 365,968. Covers for milk-cans. KRUPP AKT.-GES., F., Essen, Germany. June 25, 1931, No. 18378. Convention date, Aug. 1, 1930. [Class 125 (iii).] A cover for milk cans &c. is provided with two diametrically opposite hooks C2 which engage rotatably mounted eccentrics d<1> on the handle D. The hooks C<2> are rigidly mounted on a cross-piece which forms a handle for the cover B. The eccentrics d<1> have rotatable bushes F and a stop G is provided for the handle D.
Patent GB-962970-A (GB)
Title: Improvements relating to electrical image intensifying devices
Inventor: HAINE MICHAEL EDWARD
IPC: H05G1/64
Filed: 1961-05-19
Abstract: 962,970. Photo-electric devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 18, 1962 [May 19, 1961], No. 18397/61. Heading H1K. An electrical image intensifying device comprises a plate of homogeneous photo-conducting material between two D.C. biased film electrodes, a radiation image being applied through one electrode and a scanning beam which partially penetrates the plate being applied through the other electrode. In the Figure, a photo-conductive layer 1 of material such as selenium, is placed between two electrodes 2, 3 which are transparent to the incoming radiation pattern R and the scanning beam 5 respectively. The radiation R partially penetrates layer 1 to the depth AA so that a charge pattern is produced by means of voltage source 4 across the remaining high resistance portion of layer 1. A narrow beam S then scans this portion of layer 1 through electrode 3 resulting in a variable current between electrodes 2 and 3 proportional to the charge existing at each small area. The current output is fed to amplifier 7 to provide an intensified image on a cathode-ray tube. The incoming radiation may be X-rays.
Patent GB-202476-A (GB)
Title: Improvements in elastic fluid turbines
IPC: F01D1/02
Filed: 1922-07-05
Abstract: 202,476. English Electric Co., Ltd., Arrowsmith, G., Chittenden, J. P., and K÷nig, M. July 5, 1922. Axial-flow type; blades. - In an elastic fluid turbine supplementary stages effective only for steam flowing through the inner portion of the blade annulus are arranged between stages effective for the whole of the steam. Between the full length running blades 8 on a rotor 7 intermediate running blades 9 are secured extending to a division ring 10 formed on the guide blades 12. The division ring 10 carries on its inner side supplementary guide blades 13 co-operating with the supplementary moving blades 9. To prevent leakage of steam the shrouds of the guide blades 13 are formed with rings 15 almost touching the rotor 7 and the rotor at the root of the blade 9 is shaped so as to overlap and give an ejector action.
Patent GB-613589-A (GB)
Title: An improved locking device for windows and doors
IPC: E05C3/16
Filed: 1946-06-19
Abstract: 613,589. Door fastenings. BERG, A. L. June 19, 1946, No. 18452. [Class 44] A fastening shown in section in Figs. 1 and 3 comprises a swingably mounted bolt 4 controlled by a rotary member 7 on an axis at right angles to the bolt axis, the member 7 having an eccentric arm 8 and being partly accommodated in a cylindrical recess 9 in one end of the bolt. The bolt is retracted by a pivoted arm 10 engaged by the arm 8. The member 7 is turned by a handle 5, Fig. 3. The bolt 4 is of parabolic section and may be shaped so that when fully shot it is retained by the arm 8.
Patent GB-317365-A (GB)
Title: Improvements in or relating to the control of the clutching of self-propelled vehicles
IPC: G05G19/00
Filed: 1929-06-15
Abstract: 317,365. Renault, L. Aug. 14, 1928, [Convention date]. Relay or power apparatus.-A motor-vehicle clutch is disengaged by an electromotor, which is switched on by initial actuation of the clutch pedal or lever, further movement whereof closes an auxiliary clutch connecting the motor to the declutching-fork. The electromotor M drives through a slipping coupling (not shown) and gearing 5, 6 a shaft 1 carrying a clutch plate 19, adapted to be gripped between plates 20, 21, carried respectively by a sleeve 2 and shaft 3. Discs 8, 9, loose on the shaft 3, coact with each other by cam faces and with the sleeve 2 and a nut 10 by thrust bearings 4. The disc 9 has an arm 11 carrying, or connected by a link 15 to, the pedal 13, and the disc 8 has an arm 12 coacting with a stop 17 and carrying or connected to a switch arm 12<1> co-operating with contacts 16, 16<1>. The arms 12, 12<1> first turn with the disc 9 to switch on the motor M, but when the parts 12, 17 contact, relative movement between the discs 8, 9 thrusts the sleeve 2 axially to close the clutch 19, 20, 21, which rotates the declutching-fork 7, the slipping coupling allowing continued rotation of the motor. The cam-arrangement may be replaced by screw-and-nut, differential, or other gearing permitting of the two successive movements. The pedal 13 can actuate the main clutch directly if the motor fails.