baber/WOPTO huggingface dataset:
Patent GB-943291-A (GB)
Title: Coating compositions based on plasticised coal tar
Inventor: ARCHINARD PIERRE
IPC: C08L95/00
Filed: 1961-06-21
Abstract: A coating composition comprises a homogeneous mixture of 25-30 parts by weight of coal tar, 9-10 parts by weight of anthracenic oil, 18-22 parts by weight of clay and 38-48 parts by weight of water, the clay being of a type which swells little when mixed with water.  Such a composition is colloidal and hardens upon the evaporation of water. It may also contain in addition, sand; such a composition may be used to provide surface coatings suitable for roads and parking places.ALSO:A coating composition comprises a homogeneous mixture of 25-30 parts by weight of coal tar, 9-10 parts by weight of anthracenic oil, 18-22 parts by weight of clay and 38-48 parts by weight of water, the clay being of the type which swells little with water.  Such a composition is colloidal and may be applied by brush or scraper and hardens upon the evaporation of water. More than one layer of composition may be applied to the surface being coated the second layer being applied after partial drying of the first layer. The composition may also contain sand. The coating compositions may be applied to wood, iron, pitch- and tar-containing surfaces, concrete and slightly wet surfaces.  It may be used to coat metals and concrete, for example containers, frameworks, pipes, vats, ship holds and bridges.  Preferably three successive coatings are employed. The coating are water-tight and heat- and sound-insulating.ALSO:A coating composition comprises a homogeneous mixture of 25-30 parts by weight of coal tar, 9-10 parts by weight of anthracenic oil, 18-22 parts by weight of clay, and 38-48 parts by weight of water, the clay being of the type that swells little with water.  Such a composition is colloidal and may be applied by brush or scraper and hardens upon drying.  More than one layer of composition may be applied to the surface being coated, the second layer being applied after partial drying of the first layer.  The composition may also contain sand.  The coating composition may be applied to wood, iron, pitch- and tar-containing surfaces, concretes and slightly wet surfaces.  It may be used to coat metals and concretes, for example, containers, frameworks, pipes, vats, ship holds and bridges.  Preferably three successive coatings are employed.  The coatings are watertight and heat- and sound-insulating.
Patent GB-824860-A (GB)
Title: Apparatus for the production of a homogenous magnetic field
IPC: H01F7/20
Filed: 1956-07-20
Abstract: 824,860. Electromagnets. PERKIN-ELMER CORPORATION. July 20,1956 [July 22,1955], No. 22485/56. Class 35. A magnetic field is made uniform by providing pole-shoes having a series of ferro-magnetic discs 11 spaced by layers 12, 13, 14 of low permeability as shown in Fig. 1. In the form shown in Fig. 7, the pole-shoes are energized by permanent magnets 75 surrounded by coils 79 which are used to provide the initial magnetization of the magnets, and are then used for minor adjustments of the working flux. Alternatively a pure electromagnet may be used. Exact parallelism of the pole faces is ensured by spacing them with a parallel spacer 85, the pole discs being resiliently mounted by means of spring washers or pneumatic cushions. Further improvements in the uniformity of the flux may be achieved by making the rim 15 of the pole stand slightly proud of the discs, or by placing additional coils in the working gap to eliminate edge effects.
Patent GB-829122-A (GB)
Title: Improvements in or relating to mandrels for use in swaging operations
IPC: B21C37/15
Filed: 1956-07-20
Abstract: 829,122. Swaging mandrels. APPEL PROCESS Ltd. July 20, 1956 [July 21, 1955], No. 22500/56. Class 83 (4). A mandrel 5 for use in cold swaging a hollow workpiece 8, comprises an elongated rigid body 6 and at least one longitudinally-extending flexible rib 7 removably secured to the body so as to be withdrawn endwise from the finished workpiece whilst the body is retained in the workpiece. The mandrel enables workpieces with irregular internal surfaces, such as helical splines of varying pitch, to be made by swaging. For forming helical rifling of varying pitch in gun barrels, the mandrel may have a plurality of helical ribs 7a, Fig. 3, made of spring steel or piano wire located on the steel body 6 by circular or rectangular keys 35, 37. Alternatively the ribs may fit within shallow grooves 12, Fig. 2 (not shown), in the body. The latter is tapered at both ends 13, 14; at the forward end the ribs are anchored by a threaded plug 16 screwed within a sleeve 17 pressed against the end of the workpiece by a spring 24; at the rear end the ribs are clamped by a sleeve 20 co-operating with a conical plug 23 screwed on the threaded tailpiece 15 of the body. During cold swaging by hammer dies 30 in a rotary swaging machine, the workpiece is rotated by a chuck 28 engaging the notched end 27 of the workpiece. In another embodiment, Fig. 4 (not shown), the mandrel is tapered with axially extending ribs which terminate short of the forward-end of the mandrel. The ribs may also be of circular or triangular cross-section and they may taper throughout their length; they are preferably lubricated to facilitate their withdrawal. Alternatively the ribs may be secured to the body by soldering or brazing after location in a jig and may be subsequently released from the body by induction heating.
Patent GB-867517-A (GB)
Title: Method of producing a subtractive colour film
IPC: G03C7/18
Filed: 1957-07-16
Abstract: 867,517. Photographic colour correction. GRETENER, E. July 16, 1957 [July 16, 1956], No. 22558/57. Class 98(2) A four colour (including black) picture is made from a three coloured record either purely photographically or by procedure including scanning the first method as more particularly described requiring the production of a black printer by exposure on panchromatic material and three colour separation negatives by exposures through red, green and blue filters; three "colour residue records" are then obtained by printing each of the colour separation negatives in super-imposition with a positive produced from the black printer negative; three further negatives each representing one of the "colour residue records" but of reduced gradation (gamma) are then printed in superimposition with the black printer negative to give a positive which is employed as an intermediate film for the black printer of the final print, and the "colour residue records" are used for the coloured records of this, taking into consideration the fact that positive records must, finally, be obtained. The second method is shown diagrammatically; in this exposure 11 and development 12 produces an original 101 which is stated to be subjected to a copying process 13 through appropriate colour filters to make, after development 14, black-white or single colour records 102 corresponding to the sum of the three component colours, and 103, 104 each to one of the colours, such as red and green. These three records are pointwise scanned in scanner 15 to obtain signals of the red and green components directly and that of the blue by differentiation, such signals are subjected to conversion 16 as in the manner of Specifications 791,675 and 791,676 to obtain four further intermediate films 105, 106, 107 and 108 after exposure 17 and development 18 of which the first is described as a correction picture and the others are stated to correspond to red, green and blue colour residues. The colour residue density signals from the conversion 16, are, however, stated to be jointly combined in an exposing apparatus 117 and exposed on to a further intermediate film 110 obtained after development 118, which film 110 is copied together with the record 102 to reduce the blackness of films 105, 106, 107 and 108 in a copying process 19 to produce a projection copy 109 after development 20. Specification 506,581 also is referred to
Patent GB-931728-A (GB)
Title: Improvements in or relating to space heaters
IPC: F28D1/02
Filed: 1960-06-28
Abstract: 931,728. Convection air-heaters; spaceheating radiators. FIELD AIRCRAFT SERVICES Ltd., and J. L. SMITH. July 14, 1961 [June 23, 1960], No. 22635/60. Classes 64 (2) and 64 (3). A space heater through which a hot fluid is passed comprises a convector chamber having upper and lower openings 16 and 17 communicating with the space to be heated, at least one conduit 24 passing through the convector chamber, a radiator 15 forming one or part of one wall of the convector chamber and containing a liquid, e.g. oil which is heated by some or all of the hot fluid in a conduit 21 passing through the radiator. As shown, air to be heated passes in through inlet 17 and over finned copper conduits 24, 25 through which flows hot water; the heated air then passes upwards and is guided to upper opening 16 by fairing 40. Hot water also flows through finned copper conduit 21. All three conduits are connected by cross-headers 28 (29 not shown).
Patent GB-445746-A (GB)
Title: Improvements in weighing apparatus
IPC: G01G1/00
Filed: 1935-08-12
Abstract: 445,746. Typewriters &c. SOC. FRANCAISE DE METROGRAPHIE, 11<bis>, Rue d'Aguesseau, Paris. Aug. 12, 1935, Nos. 22713 and 22714. Convention dates, Aug. 13, 1934 and Aug. 9, 1935. [Class 100 (iv)] [See also Group XVIII] Types.-A type wheel used in a weighing - apparatus is provided with replaceable type 36 frictionally fitted into radial openings 35.
Patent GB-405708-A (GB)
Title: Improvements in or relating to the manufacture of sliding clasp fasteners
IPC: B21D53/50
Filed: 1932-08-15
Abstract: 405,708. Sliding - clasp fastenings. COX, L., 94, Gravelly Hill, Birmingham, and LIGHTNING FASTENERS, Ltd., Imperial Chemical House, Millbank, London. Aug. 15, 1932, No. 22818. [Class 44.] The interlocking elements of a sliding-clasp fastener are made from metal strip formed to a contour such that the elements lie flat and joined by their open legs and while the elements are so joined the metal surface is prepared and a coating material is applied. The surface may be burnished and a metal plating applied ; or the surface may be sand-blasted and the strip then passed through a paint bath or sprayed or coated with vulcanite or artificial resin ; or the strip may be of aluminium or an alloy thereof which is then surface oxidized and dyed. The coated strip is fed to a machine to form the interlocking projections and recesses and is cut to separate the elements which are transferred in sockets of a revolving wheel and clamped on the tape.
Patent GB-457218-A (GB)
Title: Improvements relating to open hearth fireplaces
IPC: F24B1/192
Filed: 1935-08-14
Abstract: 457,218. Heat reflectors for fireplaces. PERCY, C. D., 15, Fairway, Raynes Park, London. Aug. 14, 1935, No. 22882. [Class 126] A heat reflector for an open fireplace comprises a baffle plate 1 formed with upper extensions 2 and having means 7 for securing it to a rear part of the fireplace with the extensions engaging a front part so that, as shown in Fig. 4, the plate is supported in an inclined position and baffles the rear portion only of the chimney mouth, there being a shutter 4 slidably engaging the extensions 2 by which the baffling and reflecting area may be extended forwardly. The plate may be of less width than the chimney mouth to provide side passages for the gases when the shutter 4 is fully extended. In the construction shown, the shutter slides in channels formed by bending the edges of the plate 1 and extensions 2, and the securing means comprise bars 6 adjustably bolted to the lower edge of the plate and bent to form apertured lugs 7 for the reception of fixing screws.
Patent GB-681175-A (GB)
Title: High frequency tuner
IPC: H01P7/02
Filed: 1949-09-05
Abstract: 681,175. Impedance networks. MORLE, C. W. (Oak Mfg. Co.). Sept. 5, 1949, No. 22935/49. Class 40 (viii). A high-frequency tuner comprises a pair of arcuate conductors shorted at one end, and having a pair of contacts moving relatively to the conductors, one on each line, and connected to a circuit. The arrangement thus forms a stub line of adjustable length connected to the circuit. As shown, the conductors are formed by metal strips 27 mounted on discs carried by a rotatable shaft 15. The strips may vary in breadth along their length in order that the alteration of impedance, in relation to the rotation of shaft 15, may follow a prescribed law. The two contact assemblies 30 and 31 carry jaws engaging the conductor strips. A more compact construction is obtained by mounting the conductor strips on opposite sides of a single disc. Specifications 478,391 and 478,392, [both in Group XXXVII], are referred to.
Patent GB-677222-A (GB)
Title: Improvements in luminescent screens for x-ray technology
IPC: G21K4/00
Filed: 1945-09-08
Abstract: 677,222. Luminescent materials. UNITED STATES RADIUM CORPORATION. Sept. 8, 1945 [Nov. 21, 1944], No. 23189/45. Also in Group 39 (i). A luminescent screen for X-ray detection comprises zinc cadmium sulphide activated by silver but with nickel excluded, the proportion of cadmium sulphide being from 38-70 per cent. Above 70 per cent the brightness is low. Copper, gold and manganese may also be present as activators. The amount of silver is from one part in 3000 to one part in 100,000; the preferred amount being one part in 20,000; copper or gold should not exceed one part in 100,000 and manganese one part in 10,000. The dominant wavelength of the fluorescent colour is 559 to 618 millimicrons. Reference has been directed by the Comptroller to Specification 440,818, (Group XX].
Patent GB-810600-A (GB)
Title: Implement for working the ground
IPC: A01B33/08
Filed: 1955-08-11
Abstract: 810,600. Agricultural implements. VAN DER LELY, C. Aug. 11, 1955 [Aug. 13, 1954], No. 23199/55. Class 6(1). A soil tilling machine comprising one or more rotatable soil-tilling members 6 arranged to be capable of yielding resiliently against the action of torsion spring means is characterized in that each tool is formed from steel wire and is integral with a torsion rod 8 constituting the torsion spring means. As shown two tools are formed from a single piece of wire and are mounted on a shaft 5 which is arranged in an oblique position and is driven by gearing from a tractor power shaft.
Patent GB-1438756-A (GB)
Title: Meat press
IPC: A22C7/00
Filed: 1972-05-17
Abstract: 1438756 Pressing meat ABR FOOD MACHINERY CO Ltd 29 June 1973 [17 May 1972] 23264/72 Heading A2U A meat press comprises a chamber 11 having a closable entrance through which, when open, pieces of meat can be passed into the chamber which is partly formed by means 12 for compacting meat laterally in the chamber by reduction of the internal volume of the chamber, when the said entrance is closed, to a minimum volume of predetermined size and shape having a uniform cross-section, a transfer plunger 13 actuable to move from an initial position adjacent one end of the said minimum volume to a final position adjacent the other end of the said minimum volume for pushing compressed meat, when present in the chamber, longitudinally from the chamber through an outlet 27 in register with the said cross-section at the said other end into a mould 16, which has the same uniform cross-section and, when present, is disposed in register with (the outlet, against a reaction force exerted on the compressed meat by a reaction plunger 15 of a pneumatic actuator 17 which is so mounted relative to the chamber as to be capable of urging the reaction plunger with a reaction force establishing a pressure greater than atmospheric pressure in the compressed meat while allowing the reaction plunger to withdraw from an initial position adjacent the said other end through the mould so that the transfer plunger can push the compressed meat into the mould, and pressure regulating means for maintaining gas in the said actuator at a substantially constant pressure so that the said reaction force is substantially constant.
Patent GB-318368-A (GB)
Title: An improved electric circuit testing device
IPC: G01R19/155
Filed: 1928-08-13
Abstract: 318,368. Henley's Telegraph Works Co., Ltd., W. T., and Hoban, H. C. Aug. 13, 1928. Fusible cut-outs.-A testing set for indicating the condition of a fuse &c. comprises a neon lamp normally connected across the terminals of the set, a switch being provided to short-circuit the neon lamp and permit a low-voltage lamp to be lighted. A relay is provided for disconnecting the low-voltage lamp from the circuit under test. An auxiliary lamp and switch can also be provided for inspection purposes. As shown, Fig. 3, the set comprises a neon lamp 3, low-voltage lamp 5 and inspection lamp 10 mounted on a bar 13 carrying insulation blocks 14 through which connections are made to switches 4, 11, relay 7 and battery 6.
Patent GB-866189-A (GB)
Title: Improvements in or relating to the recording and reading out of data
IPC: G11B20/14
Filed: 1957-07-23
Abstract: 866,189. Electric digital-data-storage apparatus. INTERNATIONAL COMPUTERS & TABULATORS Ltd. July 23, 1957 [July 26, 1956], No. 23283/57. Class 106 (1). Digital data is recorded on a magnetizable medium moved relatively to a recording head by magnetizing a first spot in a first sense and a second spot in the opposite sense by said head such that the distance between the two spots is related to the digit recorded. Recording.-As described for recording digital data in binary form a source 11 of positive pulses of period T (Fig. 2, B), supplies an " or " gate 12 and via an inverter 13 a tapped delay line 14 providing delays of <SP>1</SP>/ 3 T (Fig. 2, C), and <SP>2</SP>/ 3 T (Fig. 2, D), the delayed pulses being fed to " and " gates 15 for a " 1 " and 16 for a " 0 " opened under the control of a flip-flop 17 whose outputs (Figs. 2 E; 2 F) depend on the digit to be recorded. The output of the gate 12 (Fig. 2, J) passes after amplification to a head 23 which records on a magnetic drum 24 data in a form where a " 1 " is represented by a spot of positive polarity closely followed by a spot of negative polarity and an " 0 " by a spot of positive polarity followed after a relatively greater distance by a spot of negative polarity. Reading.-The signal (Fig. 2, K) induced in the head 23 is amplified and then clipped (Fig. 2, L) and differentiated at 27 the resulting positive pulses of period T (Fig. 2, M) being fed to trigger a generator 31 which supplies an output of negative pulses of duration ¢T (Fig. 2, O) to gate the negative pulses (Fig. 2, N) from the differentiator 27 at an " and " gate 32, a negative pulse at the output 35 (Fig. 2, P) representing a " 1 " since the negative pulses from the differentiator 27 represent a " 1 " if they follow closely a positive pulse from the differentiator and a " 0 " if a relatively long interval occurs between the pulses, the length of the gating pulses supplied by the generator 31 being such that only the closely following negative pulses representing a " 1 " are passed by the gate 32. The pulses from the generator 31 are differentiated at 33, and pass to an " and " gate 34 inhibited by pulses (Fig. 2, Q) from a generator 36 actuated by the " 1 " output pulses so that only when a " 1 " has not been read out do positive pulses (Fig. 2, R) derived from differentiating the trailing edge of the gating pulses from 31 appear at the terminal 37. A second embodiment (Fig. 3, not shown) adapted to store digits in radix n where n may be greater than two is described. The packing density may be increased by waiting only the time of the shortest interval between pulses after the occurrence of the second pulse of a recording pair before recording the first pulse of the next pair. Verification of data read out may be obtained by setting a flip-flop by pulses from the terminal 37 and resetting it by negative pulses (Fig. 2, N) that a " 0 " produces a short pulse output and a long pulse output indicates doubtful accuracy. Specifications 772,102 and 836,360 are referred to.
Patent GB-277031-A (GB)
Title: Improvements in circulatory cooling systems for dynamo electric machines
IPC: H02K9/10
Filed: 1927-09-05
Abstract: 277,031. Akt.-Ges. Brown, Boveri, et Cie. Sept. 3, 1926, [Convention date]. Dynamos and motors, cooling and ventilating.- In a closed-circuit air-cooling system for a dynamo-electric machine with the circulating fan in a separate casing outside the dynamo machine by which it is driven, the air inlet to and outlet from the machine are arranged on opposite sides of this machine so that the two air passages do not cross each other and there is no counter flow of the air current. In the form shown, the machine A drives the separatelycased fan B, and the air inlets F and exit A<1> are respectively arranged at the bottom and top of the machine casing, so that the cooling system, as indicated diagrammatically in Fig. 6, consists of the series :-dynamo-electric machine A, fan B, and cooler E without any crossing of the air paths in space. An enlarged section of the passage between the cooler and generator to reduce the air velocity and deposit moisture may be provided in known manner.
Patent GB-391007-A (GB)
Title: Improvements in or relating to display or sample cards
IPC: G09F5/04
Filed: 1932-08-19
Abstract: 391,007. Displaying. FROWENFELD, J. M., 29, West 15th Street, New York, U.S.A. Aug. 19, 1932, No. 23335. [Class 3 (ii).] A display or sample card 1 has a series of openings 3 over which lie tongues 4 having one end secured to, or integral with, the card. A cord 2, preferably elastic, is passed through the openings 3 so as to be gripped between the edges of the tongues and openings, and to form independent adjustable loops 6 in which articles 7 can be placed, the loops being drawn tightly about the article from the back. The slits made in the card to form the openings 3 and tongues 4 may be in two rows, and are preferably disposed so that consecutive tongues have their bases at top and bottom of the openings to avoid undue weakening of the card.
Patent GB-1067837-A (GB)
Title: A circuit arrangement for producing a completion signal after completion of a process of variable duration
IPC: G09G1/00
Filed: 1964-06-05
Abstract: 1,067,837. Cathode-ray tube circuits &c. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. June 5, 1964 [June 8, 1963], No. 23379/64. Heading H4T. In an arrangement for producing a signal after completion of a process of variable duration in which the process proceeds in accordance with a varying electric signal which tends towards a variable final value, the varying electric signal is converted into a voltage which tends towards a fixed limit value corresponding to the foregoing final value and the voltage is passed to a comparator which issues, or causes to issue, the completion signal when that voltage approaches its limit value. The embodiment relates to the display of characters on the screen of a cathoderay tube (C.R.T.) ZR which contains a beamshaping matrix containing the whole of the characters one of which is chosen by electric deflection means A1, the beam then being directed to the desired portion of the C.R.T. screen by magnetic deflection means A2. Character control data R arrives from a digital computer to be stored in unit S, switching means V successively transferring the stored data to a digital-to-analogue converter D/A with cyclic repetition to reduce flicker of the display. The deflection voltages from the converter are exponential in form and are differentiated in respective circuits N 1  ... N 4 . The outputs of the differentiators are fed to corresponding comparators K each of which issues a signal when the input signal approaches zero. The comparator outputs are tested for coincidence in an AND circuit U the output from which is differentiated by circuit J so as to change monostable circuit fF into its astable state and in that state cause un-blanking of the C.R.T. beam; on the subsequent return to its stable state circuit fF sends a pulse to circuit V to cause the beam control data for the next character to be fed to converter D/A. Thus the operational time for displaying each character is lower the less the beam deflection.