baber/WOPTO huggingface dataset:
Patent GB-628775-A (GB)
Title: Improvements in or relating to the supply and control of current to electric lamps
IPC: H05B39/08
Filed: 1947-10-13
Abstract: 628,775. Supply and control systems for lamps. CLARK, H. V. Oct. 13, 1947, No. 27395. [Class 38 (iv)] Lamps 1 are supplied by an inductive coupling to the anode circuit of a valve 4 having a controlled A.C. potential applied to its grid and a D.C. potential applied to its anode. Either the amplitude or the frequency of the control potential may be varied to change the illumination from the lamp. By tuning the lamp circuit or employing a filter the response to frequency change may be accentuated. Fig. 2 shows three lamps each in a circuit tuned to a selected frequency. A grid transformer has three primary windings, each supplied at one of the selected frequencies so that by operating potentiometer 6 the respective lamps may be separately controlled. The intensity of illumination projected from lamps through various colour media may be controlled in response to signals transmitted by radio.
Patent GB-1215183-A (GB)
Title: Particulate pigmented urea formaldehyde
IPC: C08K9/08
Filed: 1968-06-10
Abstract: 1,215,183. Coated paper. E.I. DU FONT DE NEMOURS & CO. 10 June, 1968 [13 June, 1967], No. 27476/68. Heading B2E. [Also in Division C3] A white and black hiding power paper is coated with a paint comprising TiO 2  and particles of a fully polymerized urea formaldehyde resin containing TiO 2 , the particles being of 1-30 micron particle size and containing 15-35 vol% TiO 2 , in an alkyd resin or polyvinyl acetate emulsion vehicle, at a pigment volume concentration of 50-65.
Patent GB-773483-A (GB)
Title: Improvements in and relating to continuous mining machines
IPC: E21C27/12
Filed: 1955-09-27
Abstract: 773,483. Mineral-mining machines. GOODMAN MANUFACTURING CO. Sept. 27, 1955 [Sept. 27, 1954], No. 27500/55. Class 68 (1).  In a mineral-mining machine of the type having two or more rotary boring heads 29, for cutting overlapping bores, mounted on a frame 23 that also supports the guide means for a pair of endless cutter chains 33, 84 so disposed behind the heads as to remove the cusps left by said heads and mounted on a mobile base 21, the guide means of each chain includes a substantially horizontal guide channel 34, 35 supported for vertical adjustment on the frame 23 by a pair of jacks 41 or 87 and carrying at either end an hydraulic jackactuated linkage 66, 68, 59 supporting a guide sprocket 36, 83 about which the cutter chains pass. Operation of the associated jacks 47, 71, 87 positions the chains either in a cutting position or in a position that permits of the machine being withdrawn through the workings without fouling props. The reaches of the upper chain 33 are so arranged that the movement of a tensioning roller 46 is reduced to a small amount for full vertical adjustment of the upper guide channel. The upper sprockets 36 are provided on the forwardly facing surfaces with cutter picks. U.S.A. Specification 2,707,626 is referred to.
Patent GB-1302144-A (GB)
IPC: G01T1/28
Filed: 1971-06-11
Abstract: 1302144 Mass spectrometers EUROPEAN ATOMIC ENERGY COMMUNITY 11 June 1971 [29 June 1970] 27565/71 Heading H1D An ion-sensitive plate for taking mass spectrograms comprises an insulating base 1 on which are mounted a plurality of electrodes (one only shown) each comprising a semi-conductive layer 4 having two opposite edges between which an accelerating voltage can be applied to deflect electrons released from the layer by incident ions to one collector edge. The layer 4, e.g. of gold-doped silicon, is mounted on a base strip 5 which is slidably supported by two clips 6 on two rails 7 fixed to the base 1 and connected to two of a series of contacts 2 along one edge 3 of the base 1 through which accelerating voltages of e.g. -1 KV and -100 V are respectively applied to the rails. A conductive collector strip 8 adjacent the collector edge of the layer 4 is connected by a wire 9 to a contact 2 and thence to an evaluation circuit (not shown). The plate is located so that the upper edge of the layer 4 is opposite the magnet slit 10 of a mass spectrometer having a collimator screen 11 at a potential such as to deflect electrons from the layer 4 back to the layer to a position displaced by the accelerating voltage towards the collector edge to produce secondary electrons. The process is repeated until the secondary electrons reach the collector strip 8. The plate is suitable for use in a focal-plane mass spectrometer already adapted for photographic recording since the existing plate holder and plate change mechanism can be used.
Patent GB-1520304-A (GB)
Title: Process and apparatus for producing laminated strips
IPC: B32B15/08
Filed: 1975-06-30
Abstract: 1520304 Signs LET-R-EDGE OF CANADA Ltd 30 June 1975 27573/75 Heading G5C [Also in Division B5] A three-dimensional sign character for use in the construction of a sign and comprising a rigid, translucent plastics face 12 circumscribed by a metal strip siding 14, e.g. of aluminium joined at a seam 16, an opaque wall 20 opposed to the face and provided with a reflective interior and a light source 26 is characterized in that a strip 25 of plastics material is bonded by an adhesive layer 24 to an underlying abraded band 23 on the strip 14 adjacent one edge thereof the face 20 being bonded to the plastics strip 25 by an adhesive, edge 30 of the strip being provided with a first U-shaped bend and a second U-shaped bend 36, bend 34 extending upwardly from bend 36 and abutting strip 25 at edge 39 and edge 32 being bent at 40 with closed cell polyurethane foam adjacent bend 40.
Patent GB-1480164-A (GB)
Title: Process and press for the cross-section of a slab
IPC: B21C37/02
Filed: 1975-07-01
Abstract: 1480164 Making steel strip; forging T SENDZIMIR 1 July 1975 27672/75 Headings B3A and B3H A process for making hot-rolled metal strip in one of a plurality of widths from a slab of constant cross-section issuing from a slab caster on a planetary mill, which requires for its starting material a slab of lesser thickness, comprises reducing the thickness of the slab by subjecting it to the repeated action of a pair of opposed pressing tools 4, 4, reciprocable towards one another and at least one of which is pivotable and causing the or each pivotable tool to engage the slab in each cycle at a predetermined point in relation to the tool pivot axis, the tool being free to pivot so as to follow the advance of the slab therby creating a negligible forward pressure component and excluding any rearward component. A cast steel slab 1 is advanced by pinch rolls 2 and passed through the lights of edging tools 3 and the tools 4 into feed rolls 5 of the planetary mill. A U-frame 11 carrying the upper tool 4 and a lower frame 12 carrying the lower tool 4 are reciprocated by eccentrics (10), (10<SP>1</SP>) and (9), (9<SP>1</SP>), Fig. 2 (not shown), respectively mounted on a shaft 7 at 180 degrees to each other. A resilient connecting rod, which includes an air loaded cylinder with an adjustable stop, ensures that both tools 4 contact the slab while in a predetermined angular position with respect to the shaft 7. Once contact has been made. the frames 11, 12 are free to swing around the shaft so that their grip does not interfere with the travel of the slab, which must move at the speed imposed by the feed rolls 5. Edging tools 3 mounted on connecting rods (22), (22<SP>1</SP>), Fig. 3 (not shown), fulcrumed in pistons (21), (21<SP>1</SP>), are actuated by pump plungers 18, (18<SP>1</SP>), Fig. 2, actuated in turn by connecting rods 17, (17<SP>1</SP>), in co-operation with cranks 16, (16<SP>1</SP>) mounted on the ends of the shaft 7. In an alternative embodiment the tools are driven by a pair of eccentric shafts (7), (7<SP>1</SP>), Figs. 4, 4a (not shown). The tools are staggered in the direction of travel of the slab and they are opposed by stationary anvils. The shafts (7), (7<SP>1</SP>) may be driven by elliptical gearing, Fig. 5 (not shown), so that they are driven at a low angular speed when the tools contact the slab and at a higher speed when out of contact with it. To produce a wider slab than that emerging from the caster, it is passed through a pair of edging presses 63, Fig. 8, and through reducing presses 64, 64<SP>1</SP>, arranged at an angle to the direction of travel of the slab. The press 64<SP>1</SP> is mounted on a turntable 55 which is slidable along rails 56. To obtain a larger increase in slab width, the press 64 is turned to a greater obliquity relative to the slab travel, Fig. 10 (not shown) and its tools are set to produce a wedge-shaped cross-section of the slab so as to cause it to bend in a horizontal plane and be correctly aligned for entry into the press 64<SP>1</SP>.
Patent GB-688019-A (GB)
Title: Improvements in or relating to vehicle brakes of the internal shoe drum type
IPC: F16D51/08
Filed: 1951-11-26
Abstract: 688,019. Internal shoe-drum brakes. HIERONYMI, B. Nov. 26, 1951. No. 27711/51. Class 103 (i). In an internal shoe-drum brake having shoes 3 applied to the drum 1 by an annular expansible actuator 4, each end of each shoe has a circumferential slot 14 within which slide projections 13 on arms 11 of bell-cranks 9 pivoted on pins 8 extending between the fixed back plate 5 and a disc 6, guiding the shoes laterally. The other arm 10 of the bell-cranks 9 extends substantially radially and engages a radially extending surface 12 on the shoe. When the shoes are engaged with the drum 1 by the actuator 4, they tend to move circumferentially according to the direction of drum rotation. The surface 12 acting on arm 10 rotates the bell-crank so as to cause the projections 13 to press the shoes into tighter engagement with the brake drum. Springs 15 disposed between connections on the bell-cranks and the shoe rims have a return action on the bell-cranks. The shoes are guided laterally by their ends extending through slots 17 in arcuate plates 19. The plates 19 carry one-way mechanisms comprising ratchettoothed pins 20 and resilient locking members 22 which act as automatic clearance adjusters for the shoes.
Patent GB-952810-A (GB)
Title: Process for dyeing fibrous material
Inventor: REXROTH ERHARD
IPC: C09B62/465
Filed: 1962-07-19
Abstract: Dyes containing at least one polymerisable olefinic group, cross-linking compounds containing at least two such groups or one such group and a condensable group, and optionally other polymerisable vinyl compounds are, after impregnation as an aqueous solution or dispersion in a textile material (see Division D1), polymerized by an initiator. Suitable components are: azo and anthraquinone dyes containing a vinyl ether, vinyl ester, vinylsulphonic, acrylic ester, maleic amide or acrylamide group; crosslinking compounds - N, N1, N11-triacryloylhexahydrotriazine (a), 1, 4-butanediol diacrylate (b) and amides or methylolamides, e.g. acrylamide (c); vinyl compounds-vinyl esters, ethers and ketones, acrylic esters, acrylonitrile, vinylpyrolidone, styrene.  Specified dyes are shown in formulae (I)-(IV). <FORM:0952810/C3/1> <FORM:0952810/C3/2> <FORM:0952810/C3/3> <FORM:0952810/C3/4> The following combinations of monomers are used in Examples: (I)+(b); (II)+(a) or (b) or (b)+(c); (III)+(b)+(c); (IV)+(a)+(c). The emulsifier castor oil-40 moles ethylene oxide may be used.ALSO:Dyes of formulae <FORM:0952810/C3/1> and <FORM:0952810/C3/2> are prepared by reacting acryloyl chloride with, respectively, Disperse Orange (C.I. 11005), p - phenylenediamine --> 1 - (2 - chloro - 5 - sulphophenyl) - 3 - methylpyrazolone - (5), p - phenylenediamine --> 1 - naphthol and 1 - amino - 2 - sulpho - 4 - (4 - aminophenylamino) - anthraquinone.ALSO:Fibrous, e.g. textile material, is dyed by impregnating with an aqueous solution or dispersion of dyes which contain at least one polymerizable olefinic group and of crosslinking compounds which contain at least two polymerizable olefinic groups and/or a polymerizable olefinic group and a condensable group, optionally with other polymerizable vinyl compounds, and by polymerizing the monomers by an initiator applied to the material previously, at the same time or afterwards.  After polymerization the material may be heat treated.  Azo and anthraquinone dyes containing a vinyl ether, vinyl ester, vinylsulphonic, acrylic ester, maleic amide or acrylamide group are suitable.  Crosslinking compounds mentioned are N, N1, N11-triacryloylhexahydrotriazine (a), 1, 4-butanediol diacrylate (b) and amides or methylolamids, e.g. acrylamide (c).  Vinyl compounds include vinyl esters, ethers and ketones, acrylic esters, acrylonitrile vinylpyrrolidone and styrene. Specified dyes are shown in formulae (I), (IV). Materials are monomers utilized in the examples are:- (1) dye (I), b (cotton); (2) dye (II), a (cotton); (3) dye (II), b (regenerated cellulose); (4) dye (III), b, c (polycaproloctam, polyacrylonitrile, polypropylene, polyethylene terephthalate); <FORM:0952810/D1-D2/1> <FORM:0952810/D1-D2/2> <FORM:0952810/D1-D2/3> <FORM:0952810/D1-D2/4> (5) dye (II), b, c (cotton); (6) dye (II), b (regenerated cellulose); (7) dye (IV), a, c (cotton).  The monomers may be applied with the aid of the emulsifier castor oil-40 moles ethylene oxide.
Patent GB-1381264-A (GB)
Title: Monomers containing imino-guanidine groups
IPC: C07C281/18
Filed: 1971-09-10
Abstract: 1381264 Monomers containing amide and imino-guanidino groups AGFA-GEVAERT 13 Dec 1971 [10 Sept 1971] 27744/74 Divided out of 1381263 Heading C2C Novel monomers of formula wherein R 1  is hydrogen or methyl, A is methylene or methylene substituted by C 1-5  alkyl, n is 0 or 1, R 2  is alkyl and X is an acid radical are made by reacting a compound of formula with (a) amino-guanidine followed by forming a salt of the reaction product of (b) an aminoguanidine salt.
Patent GB-772082-A (GB)
Title: Improvements in or relating to methods of constructing a foundation for an underwater drilling rig and foundation units for use in carrying out this method
IPC: H01J29/38
Filed: 1955-09-29
Abstract: 772,082. Subaqueous buildings. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Sept. 29, 1955 [Oct. 1, 1954], No. 27755/55. Class 68 (2). A foundation for an underwater drilling rig is constructed by positioning over the site, a unit consisting of a number of watertight tanks 13 in buoyant condition, the tanks being hinged together at their ends to form a closed loop, sinking the tanks by flooding, and filling the space enclosed by the unit with solid material 16. A submersible drilling barge 11 is sunk upon the solid material and may be secured by piles 43 driven through the barge into the sea bed. The tanks are each provided with one or two air valves 41, the valves of adjacent tanks being connected by flexible conduit 42 so that, air which is pumped into the system enters all the tanks and expels the water to restore buoyancy to the assembly. The tanks are provided also one or more flooding valves 35 which are by handwheels 37 in recesses 38 which accommodate the valves 41. The valves 35 may likewise be accommodated in the recesses 38 or in other recesses. The tanks 13 are connected by pins 28 in hinge lugs 26, 27, or piles 31 may act as pivot pins, the piles being driven through the lugs 26, 27 into the sea-bed, or piles 34 may be driven through guides 33 in or on the tanks. A pin hole 32 in each pile 31 enables the pile to be supported in a raised position whilst the unit is being floated into position, a pin inserted in the hole resting upon the top of the tank. After drilling has been completed, the piles 31, 34, and hinge pin are removed, and the tanks are floated and towed away, the solid material then sliding to its angle of repose at the edges.
Patent GB-736603-A (GB)
Title: Improvements in or relating to radio ground control equipment for aircraft
IPC: G01S13/91
Filed: 1952-11-05
Abstract: 736,603. Radio-navigation. COLE, Ltd., E. K., COLLINS, B. F., and MARTIN, A. W. Dec. 11, 1953 [Nov. 5, 1952], No. 27806/52. Class 40 (7). A ground control apparatus for aircraft comprises a radar aerial 8 associated with apparatus including a cathode-ray screen, means for deflecting the radar beam in azimuth and vertically through a predetermined bearing and means associated with the azimuth deflecting means for causing a first radio signal to be transmitted when the beam is aligned on the bearing, a second signal if the beam is on one side of the bearing, and a third signal if the beam is on the other. As shown, the aerial 8 is mounted on a shaft 3 which drives the wipers of a variable resistance 16. Three signals are emitted from a code generator 18 along leads 19, 20 and 21 and under control of separate resistances in unit 16 pass to transmitter 22 and aerial 17, the arrangement being that the two signals inappropriate to the beam direction are reduced in strength in unit 16. Switches may be provided so that the operator may interrupt the signals with a spoken message or superimpose one thereon. The signals may also consist of sound recordings of suitable spoken messages. A similar arrangement may be provided to transmit messages giving similar information as to vertical deflections. Specification 661,245 is referred to.
Patent GB-784809-A (GB)
Title: Frames for windows and doors, and sections for such frames
IPC: E06B3/12
Filed: 1955-09-30
Abstract: 784,809. Windows; doors. CASTAN, F. Sept. 30, 1955 [Oct. 7, 1954], No. 27835/55. Class 20(3) The frames for fixed side panels 1 and the fixed frames for a casement 2 and a pivoted fanlight 3 in a window construction, Fig. 1, are formed from sections 6 the adjacent ones of which are keyed together by sections 8, having ribs 9 which engage with ribs 4 on the frame sections 6. The peripheral sections 6 engage in a similar manner with surround sections 28 which are secured to anchors 32 bedded in the surrounding brickwork. Flanges 25 on the surround sections 28 are grooved at 26 to receive watertight jointing 27. The moving frames for the casement 2 and the fanlight 3 are formed from hollow sections 33, heels 17 and flanges 16<SP>1</SP> of which co-operate respectively with flanges 7 and heels 7<SP>1</SP> on the fixed frame sections 6. The moving frames are mounted on the fixed frames by means of hinges such as 20 which are fastened to the flanges 16<SP>1</SP> of the moving frames and to the flanges 5 of the adjacent fixed frame sections 6. Panes, arranged on the flanges 16. 7 of the moving and fixed frames respectively are secured, e.g. by mastic. By modifyinig the sections 33 the panes may be disposed on the outside. A drip moulding 21, having a rib 22 which clasps on to the associated section 33 end is imbedded in the mastic can be fitted to the transverse sections 33. The key sections 8 may be formed with a hollow main web having a drip moulding on one of its ends. Key sections 8 which exceed the width of the fixed frame sections 6 are used when the window frames are large, and the hollow web may accommodate a flat reinforcing iron. The sections, which may also be adapted for door frames, are joined together e.g. by welding.
Patent GB-519693-A (GB)
Title: Improvements relating to electrical measuring instruments
IPC: G01R27/02
Filed: 1938-09-24
Abstract: 519,693. Resistance measurements. EVERSHED & VIGNOLES, Ltd., and WRIGHT, R. T. Sept. 24, 1938, No. 27931. [Class 37] Apparatus for the measurement of high resistances includes an instrument for measuring the current flowing in the resistance and a device possessing unilateral conductivity connected in the current circuit. A D.C. generator a driven by hand or sychronous motor has a smoothing condenser b across its terminals and is connected through the deflection coil d of a crossed-coil instrument c, d to the resistance R to be measured, which may be the insulation resistance of a cable having considerable capacitance g. A half -wave rectifier h of the oxide-film type is connected in the circuit and is so directed as to oppose only small resistance to the charging current to the resistance R, but a high resistance to the discharge current. The cable is thus charged in a short time, while fluctuations in the instrument reading due to slight voltage fluctuations are minimized. A switch s enables the cable to be discharged through a resistance r after testing.
Patent GB-1126163-A (GB)
Title: Gas turbine by-pass engine
Inventor: COLLEY ROWAN HERBERT
IPC: F23R3/00
Filed: 1967-06-16
Abstract: 1,126,163. Gas turbine by-pass type jet engines. ROLLS-ROYCE Ltd. June 16, 1967, No. 27961/67. Heading F1J. A gas turbine by-pass type jet engine is provided with reheat combustion equipment mounted in the jet pipe downstream of the turbine, and the by-pass duct communicates with the jet pipe upstream of the reheat equipment. First fuel injectors are mounted in the by-pass duct whereby reheat fuel may be injected in the by-pass air flowing through the by-pass duct towards the reheat equipment, and second fuel injectors are mounted in the jet pipe for injecting fuel into the exhaust gases flowing through the jet pipe towards the reheat equipment. The engine shown comprises LP compressor 20, HP compressor 13, combustion equipment 14, HP turbine 15, LP turbine 16, the turbine exhaust gases discharging through jet pipe 22 in which is located reheat combustion equipment 25 comprising fuel injector nozzles 41 and flame stabilizing gutters 26. A portion of air from the LP compressor 20 passes through annular by-pass duct 21 and then through chutes 27 into the jet pipe 22 upstream of the reheat equipment 25. Reheat fuel is discharged into the by-pass air flow through injectors 42 located in the chutes 27. Reheat fuel is supplied to the injectors 41, 42 from a common source 31, by means of ducts, pump and control unit as indicated. More fuel is injected into the by-pass air flow than into the turbine exhaust gases since the former contains more oxygen than the latter.
Patent GB-323472-A (GB)
Title: A disintegrator or pulveriser and separator for solid products
IPC: B02C13/13
Filed: 1928-09-29
Abstract: 323,472. Ateliers RÚunis, and Hippert, F. Sept. 29, 1928. Pneumatic separating.-A separator for a pulverizing mill comprises a chamber A, Figs. 1 and 2, which may be divided into equal compartments 15. Each compartment terminates in an outlet 24 which releases the air and products from the. mill in a thin layer of straight, curved or annular form which is aspirated throughout its length by a second current, of air induced by a fan 23 which carries off the fine products, shutters or valves 20, 25 being arranged in the walls of the chamber and suction duct of the fan respectively to vary the force of air current and so regulate the fineness of the finished product. The suction to the fan 23 from the hopper 21 passes through a triangularly shaped slot 22a in a. pipe 22. An additional air inlet 33 is provided on the suction side of the fan 23 to allow the quantity of air drawn in by the fan to be varied independently of that which passes to the separator. The suction pipe 22 may be, placed higher in the chamber A and the outlet 24 is then annular in shape. Reference has been directed by the Comptroller to Specification 229,056.