baber/WOPTO huggingface dataset:
Patent GB-109968-A (GB)
Title: Improvements in the Production of Intaglio Plates, or Cylinders, for Printing Letter-press.
IPC: G03F5/20
Filed: 1917-08-28
Abstract: 109,968. Soc. Anon. la Photogravure Rotative. Sept. 27, 1916, [Convention date]. Intaglio-plate printing; printing-surfaces; etching.-Relates to the printing of letterpress matter by the intaglio method, in which the printing plates or cylinders, including the letterpress, are usually produced by the aid of a screen, so that the edges of the characters are serrated or uneven as illustrated in the enlarged view in Fig. 1. To avoid this, the letterpress is etched without the screen so that plain edged intaglio characters are produced as shown in Figs. 4 and 5, and the etched characters are also roughened so as to retain the printing-ink a, Fig. 4. This roughening may be effected by using a suitable etching-fluid, such as iron perchloride and chromic acid, or alternatively, the roughening may be effected by mechanical or other suitable means, such as by sand blast.
Patent GB-275732-A (GB)
Title: Butting switchboard cables
IPC: H01B7/24
Filed: 1926-05-13
Abstract: 275,732. Standard Telephones & Cables, Ltd., (Western Electric Co., Inc.). May 13, 1926. Cable end constructions. - The end of the covering 2 of a cable A adjacent to a bared portion of the conductor is provided with a protecting band B arranged so that the outside dimensions of the end with the band are substantially the same as the remainder of the covered cable. The band is of sufficient rigidity to retain its position when pressed around the cable end. The cable A is inserted in the band B which has its ends set as shown and is placed in position in a bending tool C, having dies 11, 12 and shaping tools 15, 17. A single lever operating the tool 15 is provided with a lost motion device, so that after being moved to press the band B on to the cable end, further motion of the lever slides the tool 17 to close down the shorter upstanding part 4 of the band 13 on to the longer end 6 already in position on the cable. During further movement of the tool 17 contact is made with the die 12 which is forced towards the die 11 until in contact therewith, so that the band B is laterally compressed to the width of the cable A, Fig. 6.
Patent GB-1035633-A (GB)
Title: Coupling for joining pipe sections of differing diameter
IPC: F16L49/00
Filed: 1964-03-24
Abstract: 1,035,633. Pipe joints; joint-making packing. CORNING GLASS WORKS. March 24, 1964 [April 1, 1963], No. 12426/64. Headings F2B and F2G. [Also in Division E2] A band 10 having inwardly tapered edge portions 13 encircles pipes 15, 16 having different diameters, and a gasket between the band and the pipes has an outer surface bearing against the inner surface of the band and an inner surface bearing against the outer surfaces of the pipes. There are means such as a bolt 17 for tightening the band about the gasket. As shown, the rubber gasket comprises main and adaptor portions 11, 12 and there is a corrosionresistant liner 18 to protect the gasket and prevent extrusion of the gasket into the bore of the pipe 16. It is stated that by eliminating the adaptor portion 12 of the gasket pipes of identical size can be joined.
Patent GB-463357-A (GB)
Title: Improvements in or relating to the manufacture of electric contacts
IPC: H01H1/02
Filed: 1936-05-01
Abstract: An electric contact consists of a strong cupriferous core coated with a thin layer of silver, the whole being fired, preferably in vacuo at about 750 DEG  C., until the silver and copper diffuse into each other.  The final result is a substantially pure core of copper and a substantially pure outer layer of silver with varying percentages of silver and copper in between.
Patent GB-131984-A (GB)
Title: Improvements in or connected with Kinematograph Cameras.
Inventor: DAY WILFRED ERNEST LYTTON
IPC: G03B19/18
Filed: 1918-07-31
Abstract: 131,984. Day, W. E. L. July 31, 1918. Kinematograph apparatus. - A self-contained electric driving-unit, for attachment to the body of a kinematograph camera in substitution for the usual crank-handle, comprises an electric motor, gearing connecting the motor with the main driving-spindle of the camera, and a hand-controlled rheostat. As shown, the motor b, geared through worm gearing to a stub-shaft f, is contained in a box a having a plate a<1> adapted to be fitted to the camera. The rheostat g is controlled by a knob h and carried on the box a, the rheostat being preferably provided with a scale on which the number of pictures being taken per second, or the number of feet of film being fed per second. is indicated. The worm gearing may be replaced by belt or chain gearing, and a clutch may be provided between the motor and stub-shaft. The camera may be carried at the top of a pole or used in conjunction with a periscope when photographing in a crowd of people.
Patent GB-740340-A (GB)
Title: Improvements in electric massage devices
IPC: A61H23/02
Filed: 1954-04-29
Abstract: The massage appliance described in the parent Specification, which comprises a miniature electric motor detachably mounted on a casing enclosing a portable dry battery, is modified by the provision of an unbalanced flywheel on the motor so as to increase the amplitude of the vibrations.  The flywheel and motor are mounted in a tubular casing, to which a massage element is detachably secured, and this casing carries a threaded fitting for connection to a battery holder.
Patent GB-476557-A (GB)
Title: A process of treatment of materials containing tantalum and/or niobium
IPC: C22B34/24
Filed: 1936-05-04
Abstract: The whole or part of the iron, manganese, and tin which is contained in materials containing tantalum and/or niobium prior to the treatment for the recovery of the tantalum and/or niobium, is eliminated by treating the materials with a gaseous mixture of hydrogen and chlorine, the respective amounts of the two gases being such that there is substantially more than one molecule of hydrogen for each molecule of chlorine and preferably from 5 to 10 times the volume of the chlorine.  Specification 474,604 is referred to.
Patent GB-125609-A (GB)
Title: Improvements in the Manufacture of Chlorates of the Alkalies.
IPC: C01B11/14
Filed: 1916-09-05
Abstract: 125,609. C. I. Syndicate, Jenkins, H. C., Blackmoor, W., and Howard, A. Sept.. 5, 1916. Ammonium perchlorate.-According to the Provisional Specification, this salt is prepared by adding ammonium sulphate to a solution of sodium perchlorate obtained electrolvtically. The resulting impure crystals are freed from sodium sulphate by re-dissolving and treating with the requisite amount of barium nitrate.
Patent GB-187643-A (GB)
Title: Improvements in or relating to heat regeneration systems especially of gas producer plants
IPC: C10J3/80
Filed: 1921-05-02
Abstract: 187,643. Rigby, T. May 2, 1921. Cleaning internally and externally, rotary appliances for.-Vertical water tubes 104 in heat exchangers for use in producer gas plant are caused to revolve by worm gearing 110, and are provided with internal and external fixed scrapers 120, 116 to clean the surfaces of the rotat. ing tubes. The tubes are mounted in glands of the nature described in Specification 181,035.
Patent GB-199210-A (GB)
Title: Improvements in and relating to apparatus for evaporating, distilling, heating or cooling fluids
IPC: F28F9/26
Filed: 1922-05-04
Abstract: 199,210. Blair, Campbell, & McLean, Ltd., and Blair, A. May 4, 1922. Jacketed-tube apparatus.-In a heat-exchanger of the jacketed tube type for evaporating, distilling, heating or cooling fluids, nests of tubes b, connected at their ends by bent connections d, are enclosed each in a casing a secured to end plates c. The connections d are enclosed in domes or covers e.
Patent GB-332636-A (GB)
Title: Improvements in or relating to golf bags
IPC: A63B55/00
Filed: 1929-04-23
Abstract: 332,636. Cauffman, L. April 23, 1929. Bags for golf clubs. -A golf bag is provided at its open end with a clubretaining device comprising relatively movable parts extending transversely of the mouth and adapted to co-operate to prevent removal of clubs from the bag. A flat plate 21 is secured over the mouth of the bag by flexible fingers 23 that are shaped to the curvature of the ring 13 and are held in contact with the outer surface of the bag by a steel strip 25, the slotted ends of which engage a headed stud 26 on a finger 23<a>. Pivoted to the plate 21 on a central stud 33 is a locking disc 32. The plate and disc are each provided with a series of holes 34, 36 slightly larger in diameter than the handle of a golf club. When the bag is in use, the disc is adjusted to cause the holes to register. At other times, the disc is rotated to grip the club shafts 35 and is locked in gripping position by a staple 39, co-operating with a hasp 38 on the finger 23<a> and carrying a padlock 37. Specification 213,029 is referred to.
Patent GB-202368-A (GB)
Title: Improvements in or connected with the treatment of fumes produced in the manufacture of fish meal and fish guano, or fumes of an analogous nature
IPC: C05F1/00
Filed: 1922-05-05
Abstract: 202,368. Daniels, G. W., Heathcote, B., and Spencer, C. May 5, 1922. Fumes, absorbing. - The fumes arising in the manufacture of fish meal, fish guano or analogous animal products are deprived of the heavier oily portions by passage through a chamber containing baffles or screens or in which the fumes are given a rotary motion by their method of introduction or otherwise, and the lighter gases escaping are passed through a wet or dry scrubbing device. The fumes are passed through pipes 2 into chambers 1 and delivered into spaces between screens formed of wood framing 4 and cotton wool 5 or the like packed between expanded metal or meshwork walls 6 with an outer covering of sacking &c. Here the fumes are subjected to water sprayed from pipes 8, the heavier portions being separated and carried off by pipes 9 which may be cleaned out by steam pipes 10. The lighter fumes pass up through openings between the floorings and through a pipe 12 into a chamber 15 containing a grid 19 covered with coke, charcoal &c. sprayed by water or disinfectant, through which they pass and are discharged to atmosphere. Oil may be extracted from the heavier fumes by use of benzene or other solvent.
Patent GB-720043-A (GB)
Title: Improvements in or relating to harmonics generators
IPC: H03B19/03
Filed: 1952-05-19
Abstract: 720,043. Changing frequency. TELEFONAKTIEBOLAGET L. M. ERICSSON. May 19, 1952 [May 21, 1951], No. 12681/52. Class 38 (2). [Also in Group XL (c)] A harmonic generator for carrier telephony frequencies comprises a saturable reactor Sp saturated by a D.C. supply source and energized also by an A.C. generator G to produce impulses in a line across which a series of parallel connected band-pass filters F1-F4 each responsive to a high harmonic of the A.C. source are connected. A series reactor circuit Se between the generator G and reactor Sp filters the fundamental frequency but acts as a choke preventing harmonics generated reacting on the A.C. source. The circuits feeding the filters F1-F4 each have individual series tuning and preferably side-tuned condensers C1-C4 so that the relative amplitudes of the harmonics can be varied.
Patent GB-931018-A (GB)
Title: Colour development of photographic silver halide emulsion layers
IPC: G03C5/305
Filed: 1961-04-07
Abstract: 931,018. Colour development. AGFA A.G. April 7, 1961 [April 8, 1960], No. 12681/61. Class 98 (2). Photographic colour material comprising at least one silver halide emulsion layer containing a colour coupler is reversal developed using a colour developer in the presence of a compound of formula wherein R, R<SP>1</SP>, R<SP>11</SP> and R<SP>111</SP> each represents an alkylene radical having 1-10 carbon atoms or R and R<SP>111</SP> each represent a phenylene radical, m is 0-100, n is 1-50, p is 1-2, q is 1-100 and X is a hydrogen atom, an alkyl radical with 1- 10 carbon atoms which may be substituted by an amino, carboxyl, sulphonic acid or phosphonic acid group, an aryl radical which also may be substituted as above or an aliphatic mono- or di-carboxylic acid radical and in which compounds some of the sulphur atoms may be oxidized to sulphoxide or sulphone groups or alkylated to sulphonium groups. The material may be treated with a bath containing the above compound without making a second exposure and then colour developed in the normal way. Specified compounds are the condensation products of mono- or di-thiodiethylene glycol with polyethylene and polypropylene oxides and such compounds with the terminal hydroxyl groups esterified or etherified. Specifications 647,911, 859,632, 895,674 and 896,999 are referred to.
Patent GB-434144-A (GB)
Title: Improvements in or relating to window assemblies for vehicles
IPC: B60J1/14
Filed: 1934-04-27
Abstract: 434,144. Wind deflectors. TERNSTEDT MANUFACTURING CO., 6307, West Fort Street, Detroit, Michigan, U.S.A.- (Assignees of Field, H. C. ; 1517, London Street, Windsor, Ontario, Canada, and Bowlus, B. H. ; 18624, Santa Rosa Avenue, Detroit, Michigan, U.S.A.) April 27, 1934, No. 12706. Convention date, May 10, 1933. [Class 103 (ii)] [See also Group X] The front panel of a side window of a vehicle is pivoted on an axis lying outside the window and near the front edge at the top and intersecting the plane of the window at the bottom, the bottom pivot 6 being carried by the worm wheel 18 of regulating mechanism housed in the well. The shaft 6 is resiliently supported on a spring-pressed disc housed in a recess in the worm wheel, a second disc burred into the recess supporting the spring. The top pivot passes through an upper leaf 9 secured to the frame 10 and a lower leaf 8 secured to the sash channel 7. The regulator mechanism is driven by a hand actuated shaft 17 and a worm thereon engaging the worm wheel 18.
Patent GB-1191086-A (GB)
Title: A device for Controlling the Tabulation Operation in Teleprinters
Inventor: BIERBAUM DIETER
IPC: H04L13/18
Filed: 1969-03-11
Abstract: 1,191,086. Typewriters. GERATEWERK KARL-MARX-STADT. 11 March, 1969, No. 12728/69. Heading B6F. In a tabulating mechanism, interference of a light beam by tabulator stops 4 is detected by a light receiver 9 to control tabulation. As shown, a light beam from a source 6 is deflected by two prisms 2 and 3 movable with the type head or carriage device of a typewriter before impinging on a light receiver 9 such as a photodiode. Tabulator stops 4 (Fig. 2) mounted in a fixed tabulator bar 5 are selectively slid into a light obstructing plane normal to the light beam path between the two prisms. Depressing the tabulator key releases the type head or carriage device until the photo-diode detects the presence of a tabulator stop 4.
Patent GB-367243-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: H02P1/42
Filed: 1931-04-30
Abstract: 367,243. Control of A. C. motors ; snap-action switches; electrically tripped thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Hutt, L. P. ; 2237, Story Avenue, Schenectady, New York, U.S.A.) April 30, 1931, No. 12771. Convention date, April 30, 1930. [Classes 38 (iii) and 38 (v).] A motor 50 with a running-winding 51 and a split-phase starting-winding 52 is under the control of a thermally operated switch 12 of a refrigerator. With the switch 12 open, both windings are in parallel so that the motor is ready to starts After closure of switch 12 coil 28 in shunt to the starting-winding 52 tends to open contact. 34 but is restrained by coil 29 traversed by the total current of the motor. When the effect of coil 29 decreases, contacts 34 are opened to disconnect the starting-winding, but coil 28 is still energized due to transformer action between windings 51 and 52. If the motor is stalled or switch 12 opened, the effect of coil 28 decreases and contacts 34 close again. The construction of the switch 12 and its manner of opening upon an overload in the motor circuit is similar to that disclosed in Specification 367,189.
Patent GB-777835-A (GB)
Title: Improvements in or relating to stator structures for turbines or compressors of gas turbine engines
Inventor: HAYLEY PERCY VERNON
IPC: F01D9/04
Filed: 1954-05-03
Abstract: 777,835. Mounting turbine and compressor blades. BRISTOL AERO-ENGINES, Ltd. April 27, 1955 [May 3, 1954], No. 12835/54. Class 110 (3). A gas turbine stator, Fig. 1, comprises two casing portions 12, 13 secured together by a bolted flange connection as shown each end blade of each casing portion being secured in its circumferential groove 18 by a dowel 24 which engages a pin 26 located in a groove formed in the blade 19 (see Fig. 2, not shown). In a modification, Fig. 4 (not shown), one of the dowels is located in a blind bore in the flange. In a second modification, Fig. 5, the root channel of the blade of Fig. 1 is provided with a rib 35, 38 having gaps 36 to receive the dowels 40 and in a modification of this embodiment (see Fig. 7, not shown), the rib portions 38 are dispensed with.
Patent GB-474772-A (GB)
Title: Improvements in or relating to carpet sweepers
IPC: A47L11/33
Filed: 1936-05-07
Abstract: 474,772. Carpet sweepers. ENTWISLE & KENYON, Ltd., and REDFEARN, J. P. May 7, 1936, No. 12849. [Class 138 (i)] A carpet-sweeper is provided with two removable dust receptacles D adapted to be lifted vertically through openings formed in the top of the sweeper casing, the top D<1> of each receptacle forming a closure for the corresponding opening when the receptacle is in its normal position in the sweeper. The front of the receptacle has an opening d<2> above a wall d<1> which is curved so as to be further away from the brush B at the top than at the bottom. Behind the wall d<1> is a groove d<8> to permit the receptacle to be positioned astride the axle C<1> of the floor wheel. One end d<3> of the receptacle is opened and the other end which is closed, carries a spring adapted to engage a projection on the end wall of the casing A to prevent escape of dust through the end d<3>. Guides a<2> are formed at each end of the casing. In a modification in which the floor wheels are mounted in stub axles, the dust receptacles are not provided with grooves d<8>. Specifications 475,094 and 476,932 are referred to.
Patent GB-978122-A (GB)
Title: Improvements in and relating to apparatus for separating liquids of different specific gravities from mixtures thereof
IPC: B01D17/02
Filed: 1960-04-11
Abstract: 978,122. Gravity-separation apparatus. H. A. J. SILLEY, and D. G. UNTHANK. March 30, 1961 [April 11, 1960], No. 12884/60. Heading B1D. Oily water introduced at 7, Fig. 1, is directed circumferentially at 8 and is constrained to double back on itself to penetrate a pyramidal sheet 14 by "cheese-grater" perforations 19, Fig. 3 which are provided in the sheet and which are directed outwardly and in the liquidflow direction. The mixture rises through similar inwardly- and upwardly-directed perforations 18, Fig. 5, in a pyramidal sheet 15, and then flows downwardly. Oil collects at 39 and exits at 6. Water flows between radial vanes 28, is guided by spiral elements 31 having "cheesegrater" perforations upwards between tubes 25 and 30, passes through ports 26 in tube 25, and exits through an aperture leading to outlet 9. Residual oil rises through a pipe 36.
Patent GB-1492506-A (GB)
Title: Immersion plating of tin-lead alloys
IPC: C23C18/48
Filed: 1976-03-31
Abstract: 1492506 Coating with Sn-Pb alloys AMP Inc 31 March 1976 [6 May 1975] 12910/76 Heading C7F Metal substrates are coated with Sn-Pb by immersion in a bath containing a stannous salt, a plumbous salt and a sulphur-containing complexing agent, preferably thiourea or a thiourea derivative. The salts are preferably SnCl 2 .2H 2 O and PbCl 2 , and the bath preferably contains sodium hypophosphite, HCl and gelatin (as a surfactant). Alternative surfactants include alkylphenoxypoly (oxyethylene) ethanols. The substrate is preferably Cu or Cu alloy and the pH 0À5 - 1À0. Examples are given of suitable bath compositions and coatings covering the whole range of Sn-Pb alloys may be deposited. The Cu or Cu alloy substrate may take the form of tracks on a dielectric substrate (of which Examples are given), i.e. a printed circuit.
Patent GB-573163-A (GB)
Title: Improvements in or relating to photographic copying apparatus
IPC: G03B27/465
Filed: 1943-08-10
Abstract: 573,163. Photographic copying apparatus. STAFFORD, A. C. Aug. 10, 1943, No. 12937. [Class 98 (i)] In photographic copying apparatus of the kind comprising a lens mounted on a stand uprising from a base so that the lens is directed forwardly and photographs can be taken of vertically-disposed documents, and a roll-film holder and a focusing screen slidably mounted on the stand and secured together for common horizontal movement so that either can be registered with the lens, the movement of the roll-film holder a.nd the focusing screen is effected by screw-and-nut mechanism. As shown, an L-shaped stand 1 carries three rails 2 connected by a plate 2a. A pair of spool chambers 4 connected by a bridge is mounted on the top two rails 2. The bridge carries a guide 6 for the film 60 which passes from the top spool 61 to the lower spool 62. The guide 6 has an aperture 7 permitting the image formed by the objective 70 to be recorded on the film 60. A removable back carries a spring-mounted presser plate and is locked in position by latches 82. One side of both spool chambers 4 is removable to permit loading and unloading. The carrier 10 carries a focusing soreen 100 and a hinged hood provided with a magnifier. The combination of spool chambers 4, bridge, film guide 6, carrier 10, and magnifier can be traversed with respect to the camera 12 on the back plate 15 and rails 2 by means of a rotatable screw passing through a saddle attached to the bottom of the top spool chamber and fitted with an external operating handle 4 to permit either the spool chambers or focusing screen to be positioned behind the camera. A shutter may be provided in the back plate 15 to prevent exposure of the film on moving from the focusing to the exposure position. The focusing knob 20, Fig. 5, carries a worm 22 engaging a worm segment 23 on a quadrant 24 coupled to the underside of the camera base-plate by a pin- and-slot connection. The film is fed on each traverse from the focusing to the exposure position by a sprocket driven by a crown wheel 27 and pinions 28, 30 from a stationary rack attached to the back panel of the camera. A pawl-and-ratchet or a freewheel prevents film feed on the return traverse. Alternatively, a film-winding handle 33 operating through reduction gearing 34 and a slip clutch 35 may be provided. The camera stand may be adjustably mounted on a support fitted with an adjustable easel for drawings to be copied and with electric lighting equipment.
Patent GB-1069064-A (GB)
Title: Stereo-selective hydrolysis of racemic ª‡-methyl-ª‰-dihydroxy-phenyl-alanine esters and derivatives thereof
IPC: C12P13/04
Filed: 1965-03-26
Abstract: L-Isomers of acids of the formula <FORM:1069064/C2/1> in which R and R1 represent hydrogen or C1- 4 alkyl radicals or jointly a single alkylene chain, are obtained by stereoselectively hydrolysing a racemic compound of the formula <FORM:1069064/C2/2> (wherein R11 represents a C1- 6 alkyl radical) i an aqueous medium using a fungus or fungus extract which is capable of hydrolysing the ester grouping in the L-isomer in said racemic compound, the D-isomer remaining unchanged. Specified fungi are Penicillium janthinellum Biourge, Penicillium daleae Zaleski, Mortierella rammamiana (Moller) Linnemann, Cephalosporium cifferii Verona and Trichoderma viride (Pers.) ex. Fr.  The L-isomers may be isolated in the form of their N-acetyl derivatives.