baber/WOPTO huggingface dataset:
Patent GB-344469-A (GB)
Title: An improved sealing material
IPC: C09J7/22
Filed: 1929-10-28
Abstract: 344,469. Labels &c. RADO, L., 10, Bismarckstrasse, Wannsee, Berlin. Oct. 28, 1929, No. 32665. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 13, 1929.] Drawings to Specification. [Class 73.] A material suitable for sealing purposes generally consists essentially of a strip of cellulose hydrate foil provided with a fixative layer of adhesive material provided by coating with caoutchouc solution, guttapercha, or glue. To protect the exposed surface of the foil from the effects of air and moisture, it is given a coating, for example, of nitrocellulose solution, or is provided with a protective covering strip. The foil may be combined with layers of metal foil, paper, woven fabric, &c., which may carry the fixative layer, and a layer of metal foil disposed between two layers of cellulose hydrate foil may be employed. Specifications 305,571, 306,225, and 313,550, [all in Class 140, Waterproof &c. fabrics], are referred to.
Patent GB-528899-A (GB)
Title: Improvements in or relating to ladders
IPC: E03F5/02
Filed: 1939-05-05
Abstract: 528,899. Safety rail for manholes. ELKING- TON, V. May 5, 1939, No. 32754. Divided out of 514,410. [Class 20 (ii)] A combined safety rail and manhole guard for use with rigid manholes or loft ladders comprises a framework slidably attached to the ladder so that it can be raised above the manhole opening to constitute a protective guard at the edges of the opening. The manhole cover 6 is wider at one end than the other so that when loosened, the narrower end may be slid along the manhole frame 7 until the cover is upright, when it forms a guard for one end of the spring. The ladder 8 is fixed to the wall of the manhole by brackets 9 and carries tubular members 16 and 4 at the front and rear respectively. The guard comprises side frames 17 the upper bars 17a of which are offset with respect to the lower bars 17b. The upper bar has tubular members 18, 19 depending therefrom and adapted to engage telescopically the tubes 14 and 16 respectively on the ladder so that the guard normally rests above the manhole opening, but may be raised above the opening by pulling on the cross bar 21 of the guard, and retained in the raised position by pawls 26 engaging a rung of the ladder. The pawls may be released from the ladder by an upper framework 28a, 30 fixed to the pawls or by a lower framework 32, 34 which presses on the fronts of the pawls. Turnbuckle screws 22 also help to support the guard in raised position. A hook bar 24 is pivoted to one side of the guard to form the guard end of the opening remote from the cover 6.
Patent GB-303262-A (GB)
Title: Improved process and apparatus for producing relief images upon sensitized continuous film-strips which have been exposed or printed
IPC: G03C5/22
Filed: 1927-12-06
Abstract: 303,262. Thornton, J. E. Dec. 6, 1927. Developing and finishing films. - A process for producing a series of relief images of hardened coloured colloid upon a continuous film which has been printed by exposure to light until portions of its colloid layer have been rendered insoluble consists (1) in treating the film with solvents, as in bath or spray form, to remove soluble colloid in two or more stages, and (2) in applying thereafter to the film a bath or spray of a hardening agent such as alum or formalin. A further treatment with an aqueous flexing solution of glycerine, syrup and sugar may be added, or may be combined with the hardening treatment. Apparatus for carrying out the process comprises two tanks A, B supplied with hot water from a pump C through pipes c. c<1>, the water being exhausted by a pump D through pipes d, d<1>. The film strip E passes over a guide roller A<1> to the tank A, wherein it passes between driven upper rollers a and round idle lower rollers a<1>. Most of the soluble colloid is removed from the film in this bath, from which the film passes between rollers A<2> and over guide rollers A<3>, B<1> to the tank B through which it is similarly driven, and wherein it is treated with hot water by sprays B<2> fed from the pump C. After leaving the tank B the film is first passed over rollers B<3> which guide it between sprays F fed by a pump G with hardening and flexing liquids which are evenly spread on the film by squeezing rollers F<1>, and passes thence to any drying apparatus. If the film to be treated carries a temporary reinforcing layer of paper, this is loosened by the action of bath A, and may be stripped off at E<1> or E<2> as the film leaves the rollers A<2>. More than two tanks may be provided for the hot-water treatment, or the tank B may be replaced by sprays. Instead of hot water, other solvents of the soluble colloid may be used in the tanks A, B and sprays B<2>, such as cold bichromate solution, or an acid such as acetic acid. Specifications 26786/11, [Class 97 (i), Optical systems &c.], and 4043/12 are referred to.
Patent GB-898626-A (GB)
Title: Improvements in and relating to means for generating involute gears
Inventor: CLEFF PETER HERBERT
IPC: B23F5/06
Filed: 1959-09-28
Abstract: 898,626. Gear-grinding. PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. Sept. 28, 1960 [Sept. 28, 1959], No. 32887/59. Class 83 (3). A gear generating machine head comprises a rotatable spindle adapted to carry a generating wheel, such as a grinding wheel 2, having a flat or cone-shaped operative face, mounted in a spindle-holding member 1 and angularly movable therewith about a main pivot 4 axially' normal to and co-planar with the generatrix g-g of the generating wheel and also parallel to the axis of the gear to be ground, the main pivot 4 being mounted on a main slide 5 slidable on a rectilinear main guide 6 1 -6 2  adapted to be positioned perpendicularly to the gear axis so that the rectilinear path of the main pivot lies a distance " R 0  + a " from the gear axis and is parallel to and distance " a " away from the tangent to the workpiece base circle of radius R 0  "at the point of intersection of the centre line of machine and workpiece with said base circle, and means for correlating the said angular and rectilinear movements so that, from a datum position offset by an amount # 0 R 0  from said centre line, an angular movement # i  of the spindle-holding member is accompanied by a rectilinear movement a . tan # i -R 0  sec # i  X [(# i  - sin   # i ) + # 0  (1 - cos #i)] or a high order approximation thereto, of the main pivot slide 5, whereby the said generatrix is a generatrix also of a true or nearly true involute i developed from the gear base circle of radius R 0 . A grinding-wheel having a cone angle of 150 degrees-178 degrees is employed so that tip and/or root relief or helix angle corrections may be made without interference between the wheel and other parts of the gear. The gear remains stationary while a tooth flank is ground or, if the gear is helical, it is rotated slowly as the wheel is traversed. The offset R 0 # 0  of the centre-line of the mechanism from the centre of the gear results in a reduction of the range of movement of the wheel, from say a stroke-range: max-stroke ratio of 4.4 down to 1.1. The wheel 2, Fig. 2, is carried on an arm 3 swung about the pivot 4 by a follower 9 contacting a master cam 7. To obviate the production of a master cam 7 for each different gear to be produced, an adjustable linkage 11, 13, 15, Fig. 3, is used. The linkage may be replaced by a slider-crank mechanism as shown in Fig. 4. Two such mechanisms may be provided one of which is set up for the next type of gear to be produced while the other mechanism is in use.
Patent GB-1081738-A (GB)
Title: Improvements in or relating to sheet metal containers
Inventor: TEBBUTT CHARLES NORMAN
IPC: B65D41/18
Filed: 1966-07-21
Abstract: 1,081,738. Caps for cans. METAL BOX CO. Ltd. July 21, 1966, No. 32888/66. Heading B8T. A gap 5 is provided in the rolled edge 4 around the end of a cylindrical sheet metal can 1 at its junction with the usual lengthwise side-seam 2, so that when a cap 6 having a peripheral channel 8 containing sealing compound 9 softened by pre-heating is applied under pressure, the sealing compound flows as at 9a into the gap to form a vacuum-tight closure. As shown, the edge 4 is rolled inwardly of the can 1, but in a modification the edge (4), Fig. 3 (not shown), is rolled outwardly.
Patent GB-747751-A (GB)
Title: Counting scale
Inventor: PERRY LESTER
IPC: G01G19/42
Filed: 1953-11-27
Abstract: 747,751. Weighing-apparatus. PERRY & SONS (SCALEMAKERS), Ltd., G. Nov. 29, 1954 [Nov. 27, 1953], No. 32947/53. Class 143 A counting scale comprises a rectangular frame-like beam 21, 22, 23 pivoted at 20, its side 23 being linked by rods 29, 30 to secondary beams 33, 37 'having scale pans 11a, 11b to provide different counting ratios. The articles to be counted are placed in a container 26 whose empty weight registers zero at 46, 47 by adjustment of springs 48, 49, and one or more of the articles are placed in pan 11b to give a rough balance. One or more of the articles then being placed in pan 11a to give a perfect balance; the number in pan 27 is then given by the number in pan 11a multiplied by the ratio corresponding to the fact that beam 37 is pivoted at its centre 38 plus the number in pan 11b multiplied by the ratio corresponding to the fact that beam 33 is pivoted off-centre at 34. The beam 33 is doubly cranked tc allow bearings 41, 45 to be in alignment. Damping is provided by a dashpot 55.
Patent GB-1006907-A (GB)
Title: Improvements in or relating to circuits including a tunnel diode
IPC: E04H6/36
Filed: 1962-08-28
Abstract: 1,006,907. Oscillation generating and amplifying circuits employing both transistor and tunnel diodes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Aug. 28, 1962 [Aug. 31, 1961], No. 32981/62. Heading H3T. An amplifying, oscillating or frequencychanging circuit comprises a tunnel diode connected in series in the emitter circuit of a transistor with such polarity that the current through the transistor passes in the forwardly conducting direction through the diode and biased, by means of a bias voltage connected to the base electrode of the transistor, that its working point lies on the negative-resistance portion of its characteristic, the transistor serving on an amplifier of oscillations produced in or applied to the circuit, output oscillations being developed across a load in the collector circuit of the transistor. Fig. 1 shows an oscillator comprising a tunnel diode 1 and transistor 2. The capacitor 3 and inductor 4 effectively form a parallel resonant circuit, tuned to the frequency of oscillation, as the end of the inductor remote from the tunnel diode is connected to earth through the low impedance due to the by-pass capacitor 12 and appearing at the emitter-of transistor 2. The oscillations appearing between emitter and base are amplified by the transistor and applied to impedance 13. The circuit may be modified to function as a tuned amplifier by connecting a resistor 18 of low value across the capacitor 3. The resistor 18 may be the output impedance of a signal source connected between terminals 15 and 16. By connecting a further source of oscillation between the base of the transistor and the junction of resistors 5 and 6, Fig. 3 (not shown), the circuit may be made to function as a mixer of frequency changer or as a reflex amplifier. In a further modification, Fig. 4, a second transistor 2<SP>11</SP> is connected in series with the first transistor 2<SP>1</SP> to provide additional decoupling between the output circuit 13 and the further source of oscillation 31. The tunnel diode may have secured thereto a ferrite ring 10 to prevent parasitic oscillations in the ultra-high-frequency regions.
Patent GB-358759-A (GB)
Title: Improvements in or relating to boxes and cases
IPC: A45C5/00
Filed: 1930-11-03
Abstract: 358,759. Boxes and dressing-cases. ASPREY & CO., Ltd., 165, New Bond Street, and YOUNG, G. I., 1, Chesham Flats, Duke Street, Grosvenor Square, both in London. Nov. 3, 1930, No. 33009. [Class 18.] A box or dressing-case of the kind comprising two superposed parts a, b hinged together with a lid d hinged to the upper part, is fitted with a detachable tray f having flaps which, when removed, folds to form an attachÚ case and when in position constitutes a lid for the lower compartment. When the tray is removed the box or case can be used as a single compartment container. The three sections may be locked by a single fastening or two separate fastenings may be used.
Patent GB-983983-A (GB)
Title: Improvements in or relating to coin sorting apparatus
IPC: G07D3/02
Filed: 1960-09-26
Abstract: 983, 983. Sorting coins. VACUUMATIC Ltd., and S. HAINES. Nov. 10, 1961 [Sept. 26, 1960), No. 33012/60. Heading G4X. A coin sorting apparatus comprises a rotatable inclined plate 27 with holes 40 in which coins are received singly from a hopper 30, gauging channels on the back of the plate which taper towards the plate centre and a fixed annular shutter 38 which shuts off each channel from its associated hole until a coin therein falls by gravity through a shutter aperture 56 and takes up a position in a gauging channel at a radius corresponding to its diameter; counter-operating feelers 73 are arranged at corresponding radii and are depressed as the coins are moved past them to fall subsequently through transfer holes 81, 82, 83, 84 to containers 17. The plate 27 is driven through a slipping clutch 23 and belt 25 from a motor 12 and the gauging channels may be formed by plates having one stepped side or one side inclined to a radius or may be formed by pegs. When a coin actuates one of the feelers 73, a switch delivers an impulse to a counter indicating the number of coins passing to a container. When that container indicates a predetermined number, a relay energizes a solenoid to raise one of four stop pins 91, 92, 93, 94 to prevent further coins passing to that container and also, through a delay device, illuminates one of four warning lamps 96, 97, 98, 99 when the last win has reached the container. The relay also energizes a solenoid to raise a spring-loaded ejector 8 into the path of the holes 40 and eject all coins in them back to the hopper. When the operator swings the full container down about its horizontal axis, the coins are delivered and a switch 101 is operated to withdraw the raised stop pin and the ejector 8 and to extinguish the warning lamp. Sorting and counting begins again and coins collect in the passage to the container until it is swung up again to its collecting position. To clear jams, the plate 27 may be rotated slightly backwards by means of a toothed wheel 102 on its shaft and a lever 104 pivoted about the shaft. A spring-loaded rod 106 within the lever operates a rod 112 having a tapered end and, when the rod 106 is pushed in, the tapered end engages, or is ready to engage, between two teeth of the wheel 102. The rod operates a switch 132 to stop the motor 12 and also lock the counters so that a coin which has already operated a feeler 73 will not operate it a second time. As the lever 104 is pulled down, a pin 121 in a stepped slot 120 prevents the rod 106 from returning under the action of its spring and return of the lever beyond its initial position is necessary to release the pin from the slot. A modified lever is described in which a pawl arrangement prevents movement of the lever until the rod 106 is actuated. Specification 983,984 is referred to.
Patent GB-1193614-A (GB)
Title: Improvements in or relating to the Manufacture of Outer Footwear.
Inventor: LOVETT ALBERT EDWARD
IPC: A43D25/10
Filed: 1966-06-24
Abstract: 1,193,614. Boots &c. BRITISH UNITED SHOE MACHINERY CO. Ltd. 26 June, 1967 [24 June, 1966; 22 July, 1966], Nos. 28394/66 and 33037/66. Heading A3B. A shoe insole made from two separate parts is assembled on a last by positioning the two parts on the last by means of projections on the last which engage holes in the insole parts and bonding the two overlapping edges of the insole parts together using a hot melt adhesive composition. In a first embodiment an insole having a lap joint in the ball region is assembled on a last (not shown) having pegs at the forepart and heel in the apparatus shown in Fig. 1. The last is supported on a last pin 27 and toe rest 29 which are mounted on a carriage 19 movable along a slide track 22 between a forward loading position and a rearward operative position. The insole parts are positioned on the last with their skived edges overlapping, one edge of which has previously been coated with adhesive. The parts are positioned by the pegs on the last and by an edge gauge 111 which rests against the side of the last. The last support is then pushed to its operative position below insole engaging pads 75, 93 carried by the piston rods 73, 89 of fluid motors 59, 61 respectively. The motors 59, 61 are then actuated and the pads 75, 93 move inwardly and downwardly, being guided by rollers 77, 95 engaging bars 79, 97. The bars 79, 97 can be adjusted by screws 85, 103 to alter the direction in which the pads 75, 93 move. The pad 93 presses the forepart portion of the insole against the last and heelwardly against the resistance of the peg and the pad 75 presses the waist and heel portion of the insole against the waist portion of the last. The overlapped edges of the insole are then pressed together by a pad 65, carried by fluid motor 57, to bond the edges together. In a modification (Fig. 4) the insole Y is formed from a forepart and waist portion Z and a heel portion A joined together by a lap joint in the region of the heel breast line. The apparatus is modified by replacing the pads 65, 75 with a single pad 213 pivoted to an arm 201. The pad 213 is pressed against the overlapped edges of the insole Y by the fluid motor 57. The last X has a heel peg 217 which is a push fit in the hole in the heel part A of the insole and a forepart peg 219 which is threaded to help retain the insole on the last and which has a chamfered surface to assist in slipping the completed shoe from the last.
Patent GB-1138084-A (GB)
Title: Method of vapour depositing a material in the form of a pattern
Inventor: BRISBANE ALAN DOUGLAS
IPC: H01L21/00
Filed: 1966-07-22
Abstract: 1,138,084. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. 22 July, 1966, No. 33047/66. Heading H1K. [Also in Division C7] In a vapour deposition process of forming a pattern of a material such as Pt on a first substrate, e.g. cellular Si, the material is evaporated from a layer of said material on a second substrate in juxtaposition to said first substrate by focusing a converging beam of intense radiant energy, e.g. a laser beam on to the second substrate, the required pattern being formed by relative movement of the substrates with respect to the focus of the radiant beam. As shown in the Figure, infra red radiation from a laser is directed via mirror 1, compound lens 10, optical flat 8 on to substrate 5 of glass having a Pt film 7. A substrate 4 is spaced 50 microns beneath substrate 5 by mica separator 6. The substrates are mounted in vacuum vessel 3 on a co-ordinate table 2 which is moved during deposition to produce the required pattern. The deposited pattern forms the interconnections between the devices in an integrated circuit.
Patent GB-1423999-A (GB)
Title: Nitrodipenylamine azo dyes
IPC: C09B51/00
Filed: 1972-07-14
Abstract: 1423999 Nitrodiphenylamine azo dyes IMPERIAL CHEMICAL INDUSTRIES Ltd 30 May 1973 [14 July 1972] 33076/72 Heading C4P Novel dyestuffs, which contain at least one -CO 2 H group but are free from -SO 3 H groups, of the formula wherein Y is NO 2 , CN, SCN or -X-(CH 2 ) n -D in which X is a direct link or -SO 2 NR-, -SO 2 -, -SO 2 O-, -CONR-, -CO-, -COO-, -O-, -S-, -NR- or -NRCOR being H or an optionally substituted alkyl or aryl radical, n is an integer of from zero to 12, and D is H or a carbocyclic or heterocyclic radical; each -N=N-Q group is directly attached to ring A or to D when it is a carbocyclic ring; Q is an optionally substituted aryl or heterocyclic radical; and rings A, B and D may optionally be substituted by halogen, NO 2 , CN, optionally substituted alkyl or aryl, alkoxy, mono- or di-alkylamino, mono- or di-arylamino, CONH 2 , acyl, COH, OH, SO 2 NH 2  or in which Z is -O-, -S-, -NR<SP>1</SP>-, -NR<SP>1</SP>CO-, -CO-, -COO- or -SO 2 NR<SP>1</SP>-, R<SP>1</SP> being H or an optionally substituted alkyl or aryl radical, and T is an optionally substituted alkylene, arylene or divalent heterocyclic radical; and m is 1 or 2, are prepared by (a) diazotizing an amine of the formula wherein V is a halogen, coupling with QH to give a compound of the formula and then reacting this with an optionally substituted aniline; or (b) reacting together compounds of the formulµ or (c) diazotizing an amine of the formula or of the formula and coupling with QH; or (d) reacting together compounds of the formulµ wherein Q<SP>1</SP> is as Q. Only process (c) is illustrated in the examples. The novel dyestuffs give yellow to red shades and may be used to dye synthetic textile materials, e.g. polyesters, cellulose esters, polyamides, polyacrylonitrile and polyurethanes and their blends with each other and with natural fibres such as wool and cellulosic fibres.
Patent GB-872933-A (GB)
Title: Improvements in or relating to voltage regulators
Inventor: COLLINS DERMOT JOSEPH
IPC: G05F1/563
Filed: 1958-10-16
Abstract: 872,933. Automatic voltage control systems. SOLARTON ELECTRONIC GROUP Ltd. Oct. 16, 1959 [Oct. 16, 1958], No. 33106/58. Class 38 (4). In an automatic direct-voltage regulator, the voltage across a load 15, connected to terminals 13, 14 and supplied from a direct-current source 17 connected to terminals 10, 11, is maintained constant by varying the effective resistances of transistors 16, 18 connected in series between terminals 11, 14. The transistor 18 is shunted by a resistor 19 and the base electrode is connected to the terminal 14 through a reference source 20 so that the voltage across transistor 16 is maintained substantially constant. The resistance of transistor 16 is varied by a controller 17 responsive to the load voltage and a reference voltage. The reference source 20 may comprise a Zener diode excited by an auxiliary direct current supply.
Patent GB-207385-A (GB)
Title: Improvements in and relating to lead seals
IPC: G09F3/03
Filed: 1922-12-05
Abstract: 207,385. Molina, E. de las H., and Alcantarilla, L. B. Dec. 5, 1922. Seals.-The knot or other join of a cord or wire is disposed in the hollow body of a lead or like metal seal A, the aperture therein being formed with grooved or roughened walls and closed by a cover or covers F of ductile material which are forced into the grooves of the aperture when crushed by the application of a stamp. The covers F may be separate from or integral with the body of the seal.
Patent GB-1056349-A (GB)
Title: High whiteness clay and method of preparation
IPC: C04B33/04
Filed: 1963-08-22
Abstract: A kaolinite clay of improved whiteness is obtained by mixing a soluble cobalt salt with a clay slurry of particles substantially 0.5 to 2m  equivalent spherical diameter, adding a precipitant to precipitate the cobalt on to the particles, separating the particles and then calcining them.  The clay may be bleached before treatment.
Patent GB-303991-A (GB)
Title: Improvements relating to the purification of benzol, petrol and the like
IPC: C10G27/12
Filed: 1927-12-08
Abstract: 303,991. Cox, K., and McDermott, P. J. Dec. 8, 1927. Addition to 269,242. Mineral oils, purifying.-Benzol, petrol, &c. purified by ferric sulphate, are treated with alkali prior to distillation instead of after as in the parent Specification.