baber/WOPTO huggingface dataset:
Patent GB-105582-A (GB)
IPC: B65G49/04
Abstract: 105,582. Lane, C. J., and Honeyman, D. L. March 18, 1916. Directing and adjustably supporting endless belt conveyers,. discharging and feeding devices: articles held by grips; slat or lath carriers.-Articles to be electrolytically treated, particularly if flat, are automatically inverted by passage around a rotary device, between two stages of travel through the vat on a conveyer, so that both faces are exposed. In the arrangement shown, for treating iron articles, an endless band conveyer c, Fig. 1, passes around the rollers d, d<1> at the ends of the vat, a drum a, preferably octagonal in section, and a sleeve e, the bearing of which is eccentrically mounted to allow of adjustment of the tension of the conveyer and its position in relation to the drum. In alternate faces, or in all the faces, of the drum a are fitted iron-clad electro-magnets b, Fig. 2, supplied with current by pairs of brushes, which are mounted on an insulating disk on the drum shaft and engaging a ring and a segment on a stationary disk. The segment is designed so that the articles are held magnetically until sufficiently rotated to fall in an inverted position on to the conveyer. A spring contact arm rests on the edge of the insulating disk, in which are notches allowing the switch to open and temporarily disconnect, an electro-magnet p<1>, Fig. 1, holding an article placed thereon by hand. Articles are thus fed on to the conveyer at proper intervals for reversal by the drum. Studs in the conveyer connect the articles to parallel contact bars g', placed below the convever in such relation to the rollers d, d<1>, drum a and guide e as to promote good contact with the studs. The conveyer is guided at its edges by the sides of the vat or otherwise. On the ascending part of the conveyer, additional pressure at the contact surfaces may be obtained by connecting the ends of the electro-magnets r to the parallel contact bars, then made of iron. An acid-proof casing encloses the electro-magnets. When articles not of iron are treated, the drum a and feeding electro-magnet p' are provided with clips or the like for holding and releasing the articles. The conveyer may be perforated for engagement with teeth of a driving wheel. Wide articles can be supported by two or more parallel conveyers.
Patent GB-1283476-A (GB)
Title: Dyeing of synthetic fibres
Inventor: BARKER RAYMOND GYLNN
IPC: C09B45/04
Filed: 1970-03-05
Abstract: 1283476 Dyeing basic modified synthetic materials with premetallised dyes L B HOLLIDAY & CO Ltd 19 April 1971 [5 March 1970] 10581/70 Heading D1B [Also in Division C4] Basic modified synthetic materials are dyed or printed with 1:1 or 2:1 dye metal complexes of dyes of the general formula: wherein X is CH or N, Y and Z are OH 1  amino or carboxyl at least one of Y and Z being OH and are vicinal to the -N=X- group, R 1  and R 2  are optionally substituted organic residues, any substituents being other than sulphonic acid and 1 and m are each 0, 1, 2, 3 or 4 and the sum 1+m is 1-4. The 2:1 complexes may contain 1 or 2 dyes of the above formula, the 2 dyes being optionally unsymmetrical or may contain 1 dye of the above formula and as a second ligand a dyestuff other than those defined above or a non- dyestuff polar compound. The preferred metals are Cr, Co, Fe, Ni or Cu.
Patent GB-1476321-A (GB)
Title: Inert gas welding
IPC: B23K9/02
Filed: 1974-06-05
Abstract: 1476321 Welding by fusion REYROLLE PARSONS Ltd 5 June 1974 [5 March 1973] 10592/73 Heading B3R In a method of and apparatus for inert gasshielded arc welding of a narrow weld groove 1 between members 2 and 3, a welding gun assembly 4 supports non-consumable electrode 5 and means for supplying shielding gas e.g. argon to the weld 7 comprises a gas cup 6 and a gas-confining structure provided by two elongate shields 8 and 9 which co-operate with the side walls of the groove 1 to surround the electrode and contain the gas. Filler wire 10 may be fed to the weld from guide tube 11. In Figs. 3 and 5 the shields 8 and 9 themselves are surrounded by a collapsible shroud 12 which rests on the upper surface of the members 2 and 3 in use and is connected to the gas cup by member 13. In Fig. 3 the shroud is telescopic but alternatively it may comprise a collapsible elongated tapering coil of metal strip. The welding current may be pulsed and the width of the groove 1 is preferably 1¢ to 4 times the diameter of the electrode 5.
Patent GB-643817-A (GB)
Title: Means for controlling brush pressure in floor scrubbing machines
IPC: A47L11/40
Filed: 1948-04-16
Abstract: 643,817. Floor - cleaning machines. SIMON, L. J., SIMON, R. W., and MORPHY-RICHARDS, Ltd. April 16, 1948, No. 10599. [Class 138(i)] In a floor-cleaning machine of the kind in which rotary brushes are used for scrubbing (Specification 442,749 referred to), the front portion of the machine is supported upon sprung adjustable castors which take part of the weight of the machine and means are provided for varying the compression of the springs so as to vary the pressure on the brushes. As shown in Figs. 1 and 3 castors 4 are mounted at the lower ends of rods 5 slidable in sockets 6 fitted to the upper portion 7 at the front end 3 of the machine casing 1. Springs 10 are interposed between collars 8 fixed to the lower ends of the rods 5 and movable collars 9 having extensions 11. The extensions 11 engage cams 12 mounted on a transverse shaft 13, which cams each have front cam surfaces. According to whichever cam surface is operative, through turning the shaft 13, the springs 10 are compressed more or less to exert the degree of pressure on brushes 2 appropriate to the nature of the floor being cleaned. A pointer 14, manually rotatable over a scale marked in a recess 15 in the casing 1, indicates the type of floor to which the pressure of the brushes is adjusted, e.g. concrete, wood, lino, and also a polishing position. In a modification adjustment of the cams is effected by a rotary drum, access to which is gained by removing a portion of the casing or by a door therein. Adjustment of the positions of the cams in either embodiment may be effected by gear wheels carried by the shaft 13 driving gear wheels attached to the cams 12. In another modification notched cams actuate pivoted levers the outer ends of which cause the compression of the springs.
Patent GB-626513-A (GB)
Title: Transparent or translucent coated fabric suitable for use as a glazing material
IPC: D06M15/05
Filed: 1947-04-21
Abstract: 626,513. Coated fabrics. BRITISH CELANESE, Ltd. April 21, 1947, No. 10603. Convention date, April 27, 1946. [Class 140] [Also in Group IX] Transparent or translucent sheet material is made by coating an open mesh fabric woven or netted from yarns or filaments of a polymerized vinyl or vinylidene compound with a carboxylic ester or an ether of cellulose so as to fill the interstices of the fabric. The yarns of the fabric may consist of a single filament or a group of filaments associated by mere twisting, or by mutual adhesion produced by drawing several filaments through one or more dies in which they are forced to coalesce, or by twisting them while wet with a solvent or softener. The filaments may be of polyvinyl chloride, polyvinylidene chloride, or a copolymer of vinyl chloride with vinyl acetate or vinylidene chloride, and may contain dyes, pigments, or effect materials, e.g. fish scale or synthetic mother-of-pearl compounds. The weave may be plain, twill, basket, or a bobbin net lace may be used. The cellulose derivative may be cellulose acetate, propionate, butyrate, acetatepropionate, acetate-butyrate, or ethyl cellulose. A composition containing cellulose acetate, triphenyl phosphate, diethyl phthalate, acetone and ethyl alcohol is specified. The material is suitable for glazing, awnings, lampshades, containers, or for an interlayer to unite plastic sheets together.
Patent GB-566220-A (GB)
Title: Improvements in or relating to platens or rollers for writing machines and the like
IPC: B41J11/27
Filed: 1943-06-30
Abstract: 566,220. Typewriters &c. WILLIAMS, W. P. (Standard Register Co.). June 30, 1943, No. 10632. [Class 100 (iv)] In a typewriter, autographic register, or like machine, a platen roller is constructed of a number of interchangeable units and a pin-wheel unit, gear-wheel, or type-wheel is formed of a pair of complementary segments which can be detached from one position and secured in any other position between a pair of units of the built-up roller. As shown in Figs. 1 and 4, the platen roller is formed of a number of units 1 splined to a shaft 2 and axially adjustable thereon by a clamping device 21 which is moved axially of the roller. The wheel 11 with feed pins 12 which engage apertures in the record strips is formed of two parts, of which the small part 13 is formed with tongues 14 to engage grooves 15 in the larger section which has a key 24 to engage a slot 25 in the shaft 2. In locking the parts in adjusted position, annular ribs 17, 17a on the wheel 11 are received in an annular channel 9 in the head of one of the roll sections. In some forms the segments 13 may extend for nearly 180 degrees. For securing a type-wheel, Fig. 6, to a built-up roller, the segment 13 is fitted with one pin 18, and two pins 18 are provided on its complementary member, the pins serving to connect the type-wheel to adjacent units of a built-up roller. A gear-wheel may be formed similarly to the pin-wheel unit and be detachably connected to a built-up platen roller.
Patent GB-423833-A (GB)
Title: Manufacture of isatin-ª†-halides halogenated in the nucleus
IPC: C07D209/36
Filed: 1934-04-09
Abstract: Isatin a -halides halogenated in the nucleus are obtained by treating with a halogenating agent, an isatin-a -halide having a free 5-position and at least one nuclear monovalent substituent. In examples: (1) 4-methyl-7-methoxyisatin-a -chloride prepared by treating the parent isatin in chlorbenzene, with phosphoruspentachloride, is treated directly with bromine or with sulphurylchloride; (2) 4-methyl-7-chlorisatin-a -chloride is treated with sulphurylchloride.  The following isatin a -halides may also be halogenated: 4-, 6-, or 7-methylisatin a -chloride and bromide, 4 : 6 or 4 : 7-dimethylisatin a -chloride and bromide, 4 : 6 : 7-trimethylisatin a -chloride and bromide, 4-, 6-, or 7-methoxy or ethoxyisatin - a  - chloride and bromide, 4 : 6- or 4 : 7-dimethoxy (or diethoxy) isatin - a  - chloride and bromide, 4 : 6 : 7-tri-methoxyisatin-a -chloride an bromide, 4-, 6- or 7-alkylmercaptoisatin-a -chloride and bromide, 4 - methyl - 6 - (or 7-) ethoxyisatin-a -chloride and bromide and 4 : 6-dimethyl-7-methoxyisatin a -chloride and bromide.  The parent isatins may be prepared by the customary methods, e.g. the Sandmeyer or Martinet processes.  Specification 422,606 is referred to.
Patent GB-892282-A (GB)
Title: Improvements in or relating to pulsed radar systems
Inventor: MORTLEY WILFRID SINDEN
IPC: G01S13/526
Filed: 1959-03-26
Abstract: 892,282. Pulse radar. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Oct. 5, 1959 [March 26, 1959], No. 10699/59. Class 40(7). An M.T.I. radar system which allows cancellation of fixed target echoes received after a delay greater than the interval between transmitted pulses includes a fixed target echo cancellation channel in which echo signals resulting from a transmitted pulse are mixed with coherent oscillations phased by the oscillations of that pulse and at least one other cancellation channel in which the echo signals are mixed with coherent oscillations phased by the preceding transmitted pulse, and the outputs from the two channels are combined for M.T.I. display. The Figure shows a system in which echo pulses are applied, after mixing to produce I.F. signals, to parallel coherent detectors CD, CD<SP>1</SP> each of which feeds a subtractive combining device SD or SD<SP>1</SP> through two paths one of which has a delay DL2 or DL2<SP>1</SP> equal to the transmitter pulse repetition time. The second inputs to CD and CD<SP>1</SP> are obtained from a coherent oscillator COHO phased by the transmitted pulses; CD is fed direct, CD<SP>1</SP> through a delay line DLI. The outputs from SD and SD<SP>1</SP> are fed to a coincidence detector AG, responsive to the smaller of two coincident inputs, which feeds a display unit Two coherent oscillators may be used, one for each channel.
Patent GB-1467666-A (GB)
Title: Electrophotographic apparatus
IPC: G03G21/00
Filed: 1974-03-11
Abstract: 1467666 Electro-photography HITACHI Ltd 11 March 1974 [5 March 1973] 10786/74 Headings G2A and G2H A compact form of electro-photographic apparatus for producing enlarged copies of images displayed on the screen of a cathode ray tube and images of projected transparencies, and in which the optical system can be easily adjusted without dismantling, comprises: a frame assembly mounted on a base in a freely openable and closeable manner, a paper feeding device, a charging device, an exposure device, a developing device, and a fixing device, said respective devices being so arranged as to cause a photo-sensitive paper to travel through a substantially U-shaped path; wherein said paper feeding device, said charging device, said exposure device, a cathode ray tube and optical system therefor, and a transparency projection device are mounted on said frame assembly; and said developing device, said fixing device, an electric motor for driving the apparatus and a controlling device for said motor are mounted on said base. The exposure plane of said exposure device, on which the respective images from the cathode ray tube and the transparency are focused in superimposed relationship, is so arranged as to be directly viewed when said frame assembly is opened.
Patent GB-558237-A (GB)
Title: A new or improved method of forming and dressing grinding wheels
IPC: B24B53/08
Filed: 1942-08-06
Abstract: 558,237. Grinding wheels: COVENTRY GAUGE & TOOL CO., Ltd., HARLEY, H. H., and WAINWRIGHT, J. E. Aug. 6, 1942, No. 10967. [Class 60] The form of a grinding-wheel employed in the production of screw threads &c. is produced in stages, one part of the form being accurately produced in one stage and the other part in a subsequent stage. For this purpose, the dressing tool 2, Figs. 2 and 3, which is preferably of pneumatic form with a V-section, is traversed relatively to the wheel 4 along the path indicated in Fig. 2 whereby the part 5 of the form is accurately produced, and then along the path indicated in Fig. 3 when the form is completed. As shown, the wheel 4, Fig. 7, and driving motor are mounted on a slide 12 movable, for infeed purposes, by a calibrated screw 14.' The tool 2 is mounted in a casing 18 supported between the centres 19 of a workhead 20 and tail stock 21 carried on a table 22 traversed on a bed 23. The movement of the tool to and from the wheel is effected by a cam 3 driven by gearing from the work head and the traverse from a screw 31 engaging a nut carried by a lug on the table, the nut being adjustable relatively to the lug, to effect the adjustment between cuts, by gearing operated by a calibrated hand wheel 38. The cam may be dispensed with and the in- and-out motion produced by copying.
Patent GB-1172215-A (GB)
Title: A Method of Producing Trifluoromethane
Inventor: PAUCKSCH HEINRICH
IPC: C07B61/00
Filed: 1968-03-06
Abstract: 1,172,215. Trifluoromethane and chloroform. KALI-CHEMIE A.G. 6 March, 1968 [10 March, 1967], No.10971/68. Heading C2C. Trifluoromethane and chloroform are produced by the disproportionation of CHClF 2  and/or CHCl 2 F by passing the CHClF 2  and/or CHCl 2 F into an aluminium halide which is immersed in liquid chloroform at a temperature between -10‹ and +150‹ C. and at a pressure of between 0À2 and 50 atmospheres absolute. The aluminium halide may be suspended in the liquid chloroform or may be in the form of a stationary bed saturated with the liquid chloroform.
Patent GB-595162-A (GB)
Title: An improved yarn tensioning or take-up device, primarily for knitting machines
IPC: D04B15/44
Filed: 1945-05-01
Abstract: 595,162. Yarn-tensioning devices. BENTLEY ENGINEERING CO., Ltd., and WAINWRIGHT, C. H. May 1, 1945, No. 11009. [Class 120 (ii)] [Also in Group VIII] A yarn-tensioning device comprises a spring biassed arm 5 and a trapper 6 which is rendered inoperative by downward movement of the arm 5 against the action of the spring. 'The arm is pivoted about a spindle supporting the spring 9 and the spindle is mounted on a platform 2 secured to a column 1. The trapper 6 is freely supported about the column 1 and is held against the bottom of the platform 2 by a collar 14 under the action of a coiled spring 7 encircling the column. The yarn is fed through a hole 8 in the trapper, between the trapper and the bottom of the platform and through a guide 5a on the end of the arm 5, the trapper being held open by the arm as the tension of the yarn is maintained. As the yarn becomes slack, the arm is raised by the spring 9 and the trapper allowed to close so as to prevent further supply. The grip of the trapper may be adjusted by varying the position of a sleeve 15 on the column 1 to compress or relax the spring 7. In order to thread the yarn through the device, the trapper is rotated about the column 1, a spike 6c registering with a cleft 2b to locate the trapper when returned to its normal position and about which it pivots when engaged by the arm.
Patent GB-1030175-A (GB)
Title: Improvements relating to work chucking apparatus for tooth cutting machines or the like
IPC: B23B33/00
Filed: 1965-03-16
Abstract: 1,030,175. Chucks. GLEASON WORKS. March 16, 1965 [April 2, 1964], No. 11088/65. Headings B3B, B3K and B3T. A chuck comprises a body 10 containing contractible means 22 to grip the cylindrical shank 24 of a workpiece W, a sleeve 47, 56 movable axially of the body and having converging guide formations 59 to engage the workpiece, and resilient means 52 acting on the sleeve to cause it to position a workpiece angularly as it is moved into the chuck. The chuck is mounted by screws 16 and a tapered hub 11. The collet 22 is actuated by a fluidpressure piston connected to a draw-bar 31. The workpieee is positioned initially between a centre 67 and a spring-pressed centre 32 in its forward position 32<SP>1</SP>, and against the forward face of a spring-pressed support 34 in its forward position 34<SP>1</SP>. The centre 67 is moved towards the chuck by an hydraulic piston. As the workpiece, which is a sector gear, is moved axially it is rotated into a particular position by the sloping edges 59. When the workpiece has been moved axially into the chuck it is positioned by lugs 43 engaging the support 34.
Patent GB-277049-A (GB)
Title: Means for and methods of reducing self induction and eddy-current losses in underground electric cables
IPC: H01B11/12
Filed: 1926-04-28
Abstract: 277,049. Taylor, A. M. April 28, 1926. Transformers.-In a polyphase transmission system involving balanced currents in paired conductors, the main transformers are modified to ensure exactly equal currents in the paired conductors under normal conditions Two secondary windings may be arranged on each transformer limb (three-phase or, single-phase) or with single-phase transformers a primary P and a secondary S would be arranged on each limb in similar relation to the magnetic circuit as shown in Fig. 3; a slab of fireproof insulating material BB is then used to divide the tank into two halves and prevent oil circulating between them. Three-phase transformers may be adjusted for the above purpose by magnetic shunts, by independent low voltage windings of few turns on each phase connected in delta with a small external resistance in each limb thereof, by three low-resistance links inserted in the principal delta of the transformer, or by a single closed ring round each magnetic circuit. A microscopic inductance consisting of a few turns of stiff copper rod may be embedded in the oil in series with the high tension supply to the line.
Patent GB-1516423-A (GB)
Title: Mould and process for the preparation of crosslinked polyolefin foams
IPC: B29C44/58
Filed: 1976-03-19
Abstract: 1516423 Mould for foam material SUMITOMO CHEMICAL CO Ltd 19 March 1976 [22 March 1975 15 April 1975] 11203/76 Heading B5A An injection or compression mould for foam material 5 includes a retractable body 2 provided with a freely slidable part 3 thereon so that when the body 2 is retracted to allow foaming the part 3 may be urged back over the body 2 (see Fig. 3, not shown) under the influence of the expanding foam alone so that the rate in increase in the volume of the mould cavity, matches that of the foam to thereby avoid the formation of wrinkles on the foam surface. At least one air passage 6 may be provided between the body 2 and the part 3 to facilitate relative movement. The mould may also comprise a base plate 1 and side walls 4 which may be provided with removable pieces (8, Fig. 5, not shown) to provide with interchangeable slidable parts a variety of mould cavity shapes. The material 5 may comprise an olefin homopolymer, e.g. polyethylene, or co-polymer such as ethylene-vinyl acetate, ethylene-propylene copolymer, ethylene-acrylic acid copolymer, or ethylene-acrylic ester copolymer, or blends thereof. The material 5 may also include other thermoplastic and powdered thermosetting polymers, cross-linking agents, organic or inorganic fillers, e.g. wood, cork, metallic, metal salt, oxide or hydroxide powder. The material may be cross-linked by electron beam or ionizing radiation. The foaming agent may be a solvent or unstable compound such as azodicarbonamide or N,N<SP>1</SP>-dinitroisopentamethylenetetramine. Shoe soles may be formed.
Patent GB-279718-A (GB)
Title: Improvements relating to combined steam and vacuum brake control mechanism for railway and like vehicles
IPC: B60T15/04
Filed: 1927-04-27
Abstract: 279,718. Gresham, H. E., and Kiernan, G. April 27, 1927. Fluid-pressure.-Relates to means such as described in Specification 112,549 whereby a steam brake on a locomotive for example may be operated simultaneously with vacuum brakes on the rest of the train while permitting independent hand operation of the steam brake. The apparatus comprises main and pilot steam supply valves d, e operated by an extension of the exhaust valve f the stem g of which is connected to a lever h. This lever is connected to a piston i working in a cylinder the lower part of which is in open connection at j with the vacuum train pipe while the upper part and a reservoir con. nected thereto at k communicates with the trainpipe by a non-return valve m. Thus when the pressure in the train-pipe is increased to apply the train brakes, the piston i is raised thereby closing the exhaust valve f and pipe c and opening first the pilot valve e and then, by a cross-pin e', the main steam supply valve d to admit steam to the locomotive brake cylinder by the pipes a, b. Hand operation of the steam brake is effected by the lever u which acts through a spring v upon a pivoted arm o adapted to engage the lever h. The lever u carries a detent x for engaging a notched quadrant w whereby the lever may be held in adjusted position to determine the degree of steam pressure applied to the brake.