baber/WOPTO huggingface dataset:
Patent GB-379608-A (GB)
Title: Improvements in or relating to modulated carrier wave receivers
IPC: H03G3/26
Filed: 1932-01-15
Abstract: 379,608. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Beers, G. L. ; 119, Sumerfield Avenue, Collingswood, New Jersey, U.S.A.) Jan. 15, 1932, No. 1298. Convention date, Jan. 31, 1931. [Class 40 (v).] In a wireless receiver the detector is arranged to be normally inoperative and to be rendered operative by means actuated by the strength of the incoming signals so that the detector remains inoperative when the signals are below a predetermined value. The Figure shows the second detector 5 of a supersonic heterodyne receiver in which the gain of the high frequency amplifying valves is controlled by variation of grid bias over the lead 43 from an auxiliary valve 1. The valve 1 also controls the grid bias of a valve 3 of the gas discharge type which is fed from an alternating current source and controls the illumination of the tuning dial through lamp 15 and the grid bias of the detector 5. Specifications 371,228 and 372,155 are referred to.
Patent GB-570978-A (GB)
Title: Improvements in or relating to printing presses
IPC: B41F13/42
Filed: 1944-01-24
Abstract: 570,978. Printing- machines. GOSS PRINTING PRESS CO., Ltd. Jan. 24, 1944, No. 1336. Convention date, Jan. 30, 1943. [Class 100 (i)] In a printing machine of the kind in which sheet grippers or carriers on cylinders forming part of printing, delivering, folding or stitching mechanism are operated by cam-operated means on a cylinder co-operating with a cam located at one end of a cylinder, a dust-tight cover for the cam-race and cam follower is fixed to the cylinder or cam. As applied to a rotary folding cylinder 10 Fig. 1, with a shaft 11 mounted in bearings 13, impaling pins 15 are mounted on a shaft 16 which is oscillated by an arm 20 having a cam follower 21 moving in a cam-race or groove 22 held fixed to the frame 12 by screws, and the cam mechanism is protected by a casing 30 formed of two parts secured together by bolted diametrical flanges, and secured to the end 17 of a cylinder 10 by means of a flanged portion 35 which is clamped to the cylinder by screws. The casing 30 has a flange 37 which rotates freely on a cylindrical extension 38 of the cam race but fits so as to prevent escape of oil which is introduced to the casing through an aperture 40 normally closed by an inspection cover 41 which permits of repair of the cam mechanism. In a modified form the cover is secured to'the cam-race and overlaps the outer surface of the folding cylinder, and the cover 30 may be formed with an oil-retaining joint formed of a rib 45, Fig. 3, on the cam-carrying member 38 and a circumferential groove 46 in the inner periphery of the cover 30, drain-holes 47 being provided. As applied to a cutting and collecting cylinder 55, Fig. 5, of a printing-machine in which impaling pins 61 thereon can be operated to collect sheets or is put out of action when the cylinder acts as a " straight run " cylinder, the cam member 66 is arranged to be driven from the shaft 56 of cylinder 55 by means of gear wheels 72, 76, 77 67, the wheels 76, 77 being mounted in an eccentric carrier 75 which is operated to put the gears in and out of operation. The earn race is protected by a cover 80 which also retains lubricant, and it is secured by screws 81 to the cylinder 55. When the pins 61 are not required to act the cover 8 is secured by screws 85 to the cam member 66 and the gears 76, 77 put out of action.
Patent GB-572803-A (GB)
Title: Process for the production of nitroethylene and polymers derived therefrom
IPC: C08F26/02
Filed: 1942-02-02
Abstract: Nitroethylene, which has a lachrymatory odour, is obtained by reacting an alcohol with 1 : 2-dinitroethane and/or b -nitroethylnitrate, the product being distilled off with the excess alcohol, which is rapidly cooled.  Alcohols mentioned are methyl, ethyl, propyl, amyl, allyl and benzyl alcohols, cyclohexanol and esters of glycollic acid.  The nitroethylene polymerizes in the presence of alkali, such as ammonia, caustic soda and potash, sodium ethoxide, alkali carbonate and bicarbonate, and calcium and barium hydroxide.  Ammonia or a lower alkylamine placed in the receiver for the nitroethylene causes the latter to polymerize.  In examples, ethanol is reacted with 1 : 2-dinitroethane and b -nitroethylnitrate in a three-necked flask made of glass sold under the Registered Trade Mark "Pyrex."
Patent GB-807530-A (GB)
Title: Improvements in or relating to machines for planing wood or the like material
IPC: B27C1/08
Filed: 1956-01-16
Abstract: 807,530. Planing wood. OLLER, J. M. Jan. 16, 1956 [Jan 21, 1955], No. 1368/56. Class 145. A machine for planing wood or similar materials on all four sides comprises, in order of progress of the material through the machine, a lower horizontal cutter 4, work feed means 11, an upper horizontal cutter 8 and a pair of spaced vertical cutters 9 and 10. The work is supported and guided by a table 1 and a vertical fence 2 both of which are adjustable relative to the cutters, the table 1 being mounted on parallel pivoted bars adjusted by a lever. The feed means is preferably a set of resilientlymounted friction rollers but may comprise a series of narrow toothed wheels or endless chains and they may be driven by belts, chains or shafts. A spring or pressure guide roller is provided between the two vertical cutters and similar rollers may be provided between each planing step to bear against the newly-planed faces. The lower horizontal cutter may be adjusted to vary the depth of cut by a bracket dovetailed into the inclined surface of a block and moved by a lead screw. The tools may be of different cutting qualities according to the requirements of the different surfaces of the workpieces and moulding tools may be fitted. A duct 13 and fan are provided for extracting shavings.
Patent GB-772273-A (GB)
Title: Improvements in or relating to exothermic mixtures
Inventor: ATTERTON DAVID VALENTINE
IPC: C22B5/04
Filed: 1955-01-17
Abstract: A heat producing mixture comprises an oxidisable metal or alloy and an oxidising agent in amount insufficient to react with the metal or alloy to oxidize it completely, the metal or alloy comprising magnesium, or magnesium alloy alone, or mixed with aluminium or silicon or their alloys or mixtures thereof.  If aluminium or its alloys are present the mixture preferably contains also 1-10 per cent of a fluoride such as cryolite.  The magnesium may be in granular form.  The oxidizing agent is preferably one or both of iron oxide and manganese dioxide.  One or more refractory fillers, such as grog, limestone, carbon or sand should be present in a major proportion, and in granular form to make the mixture permeable, and the whole may be formed into shaped articles, e.g. in shapes suitable for generation of heat in the risers and feeding heads of casting moulds, by use of a binder such as dextrine or gum arabic.  Suitable compositions comprise magnesium alloy 10-35 per cent; aluminium or silicon or their alloys 0-35 per cent; filler 40-70; oxidizing agents 5-20 per cent; binder 0.-10 per cent; fluoride 0-10 per cent. Specification 627,678 is referred to.
Patent GB-973963-A (GB)
Title: Thixotropic ester body-polyamide coating compositions
Inventor: TAWN ALEC RICHARD HORNSEY
IPC: C08G69/34
Filed: 1960-01-14
Abstract: Thixotropic coating compositions are made by heating an ester body with a first polyamide until thixotropic properties are developed, continuing the heating until the thixotropic properties are substantially diminished, and then incorporating at a temperature below 220 DEG C. a second ployamide or a diamo-diamide.  The ester body is a film-forming body having ester linkages e.g. a fatty oil, a polymerized or partially oxidized fatty oil (e.g. linseed stand oil), an oleo-resinous varnish, an alkyd resin (e.g. a linseed oil modified pentaerythritol phthalate) or an ester gum (e.g. a pentaerythritol ester of rosin).  The first polyamide may have a molecular weight of 1,000 to 9,000 and is obtained by reacting an aliphatic a , o -diprimary amine (e.g. ethylene diamine) with a polymeric fatty acid, possibly together with other polyamines (e.g. diethylene triamine), aliphatic dicarboxylic acids in which the carboxyl groups are separated by at least four carbon atoms, or monocarboxylic acids (e.g. sunflower fatty acids).  The second polyamide has a molecular weight not exceeding 3,000 and is obtained by reacting an alkylene diamine (e.g. ethylene diamine or hexamethylene diamine), possibly together with other polyamines, aliphatic dicarboxylic acids in which the carboxyl groups are separated by at least four carbon atoms, or monocarboxylic acids (e.g. sunflower fatty acids). The diamino-diamide is made by reacting a fatty acid (preferably of C10-C12 chain-length) with an aliphatic a , o -diprimary amine.  The amides and the ester bodies may be reacted in the presence of xylol or white spirit.  The products may be incorporated into alkyd resins, oils and oleo resinous varnishes.  U.S.A. Specification 2,663,649 and Specification 639,551 are referred to.
Patent GB-1498271-A (GB)
Title: Transistor power switch
IPC: H01L27/082
Filed: 1975-01-14
Abstract: 1498271 Transistor switching circuits ROBERT BOSCH GmbH 14 Jan 1975 [15 Jan 1974] 1443/75 Heading H3T [Also in Division H1) In a circuit for switching on and off a load R, L, resistors R 1  and R 2  are chosen so that when transistor 1 is off and transistor 2 is saturated and the power loss in R 1 , R 2  and transistor 2 is the same as in R, and transistor 1 when transistor 2 is off and transistor 1 on. As a result the heat dissipated in the circuit is independent of the duty cycle of a control signal applied to the base of transistor 1. Driver transistor 1 may be controlled by a complementary transistor 8 and a diode D may be provided to speed the switching of the load. When these are provided, they are included in the equation of the "on" and "off" power loss. Monolithic integrated forms of the circuit are described and to facilitate this the transistor 2 and resistor R 2  may be formed as a plurality of parallel cells, Fig. 4 (not shown). To reduce the saturation voltage of transistor 1, it may be formed by pairs of transistors in the circuits of Figs. 10 or 11.
Patent GB-738488-A (GB)
Title: Improvements in or relating to calculating apparatus for use in air navigation
IPC: G06G1/14
Filed: 1952-01-18
Abstract: 738,488. Calculating-apparatus. BAKKE, A. BLOM-. Jan. 18, 1952 [Jan. 19, 1951], No. 1455/52. Class 106 (1). Apparatus for solving vector triangles for use in aerial navigation comprises a " ground speed " bar 3 pivoted to a " wind speed " bar 2, an " air speed " bar 4 adjustable in length and pivoted at one end to a cursor 6 slidable on the bar 2 and connected also to a cursor 5 slidable on the bar 3, and a graduated dial 1 pivoted to the bars 2 and 3 measure the angle between them and enable the apparatus to be orientated on a map. The bar 3 carries a speed scale 13 and an altitude scale (not shown) for co-operation with a temperature scale on a stretchable band 17 which also bears an indicated air-speed scale and a time scale 19. In use the band 17 is stretched until the graduations on the temperature and altitude scales corresponding with the ambient temperature and attitude of the aircraft, coincide. The band is then locked in this position by means not described and the cursor 5 is moved to align an index mark 8 with the graduation on the band 17 corresponding with the indicated air speed. The cursor 5, which carries a pivot moving in a longitudinal slot in the bar 4, is thus positioned according to the true air speed and with the cursor 6 in zero position, a locking device 15 is operated which prevents relative displacement of the bar 4 and cursor 5 but_permits pivotal movement. The apparatus is then placed on a map, the bar 3 being aligned with the course it is desired to follow and parallel lines on the dial 1 being arranged in the N-S direction. The bar 2 is then set by means of the dial 1 according to the wind direction, and the cursor 6 is set by means of a scale 16 according to the wind speed. During the latter movement, the cursor 5 moves along the bar 3. The ground speed is then indicated on the scale 13 against the index 8 and the course to be steered is found by adding the reading on the dial 1 against the index 9 and the angle of drift indicated by a scale 22 on the cursor 5. The time scale 19 is calibrated according to the scale of the map and is stretched until an index 11 on it is aligned with the index 8 indicating the ground speed. The time taken to travel between two places on the course may then be measured by the scale 19 or the position reached at any time may be found. In order to increase the range of the apparatus, the cursor 5 may be turned through 180 degrees.
Patent GB-137384-A (GB)
Title: Improvements in runners or castors
IPC: B60B33/08
Filed: 1919-01-21
Abstract: 137,384. Shakespeare, H. T. Jan. 21, 1919. Castors. - In runners or castors for trunks, cases, or similar, receptacles, a ball is mounted in a retaining-plate a of pyramidal form with sides b inclined at a small angle to the face of the trunk &c. The plate may form, or be secured to, an attachment plate d having an extension e bent at right-angles to fit the side of the trunk, and a strengthening-strip f may be riveted to the plate. A cup-shaped bearing k may be fitted inside the retaining-plate to take the wear of the ball j.
Patent GB-999522-A (GB)
Title: Improvements in and relating to plate check valves
IPC: F16K15/08
Filed: 1964-01-14
Abstract: 999,522. Valves. HOERBIGER VENTILWERKE A.G. Jan. 14, 1964 [Jan. 17, 1963], No. 1547/64. Heading F2V. A multi-port check valve comprises a valve plate 6 and a spring plate 7 maintained in their position in relation to a valve seat 1 and a valve guard 2 by at least one pin 15 extending parallel to the valve axis, the pin being positively connected to the seat or the guard and being freely rotatable in relation to the member to which it is not connected. In the illustrated embodiment, two pins 15, 16 of different diameter and radial spacing are employed to ensure that the valve plate and its seat are correctly assembled, the lower ends of the pins being received in arcuate recesses 12 and 17 to permit the free rotational movement. In a simpler construction, the arcuate ports 11 in the valve seat are replaced by bores and a single pin secured to the guard and having its lower end situated above the seat locates valve and spring plates together with spacing washers.
Patent GB-399188-A (GB)
Title: Improvements in securing devices for illuminating globes
IPC: F21V17/20
Filed: 1932-01-19
Abstract: 399,188. Globe-holders. HAIL WOOD, E. A., Beacon House, Texas Street, Morley, near Leeds. Jan. 19, 1932, No. 1570. [Class 75 (ii).] A globe-holder, which is combined with the suspension means for the light source, e.g. an electric bulb, is provided with movable members A which are mounted on a dish-like member D and are caused to open out by the rotation of a central member B operable by an arm or thumbscrew to hold or release the globe. In the form shown in Fig. 1, arms A are pivoted to the plate B and their ends pass through apertures D<2> in the edges of the dishlike member D. The plate B is rotated by an arm B<1> moving over a rack B<2>. In the form shown in Fig. 3, levers A are pivoted to brackets D<3>, and are moved to the required position by rotation of the screw B<3> so as to move the plate B up or down. In a third form, the movable members are in the form of pins which slide radially in brackets and are pressed by springs against a central conical member carried by a thumb-screw so that the rotation causes the arms to move inwardly or outwardly. Reference has been directed by the Comptroller to Specification 20293/94, [Class 75, Lamps &c.].
Patent GB-1529012-A (GB)
Title: Dehydrogenation of hydroxy-cycloaliphatic compounds
IPC: C07C39/15
Filed: 1976-01-15
Abstract: Substituted 2-hydroxynaphthalenes are prepared by heating the corresponding cycloalkanones or hydroxycycloalkanones in the presence of a dehydrogenating agent.
Patent GB-474716-A (GB)
Title: Improvements in or relating to low temperature brazing alloys for uniting aluminium alloys
IPC: B23K35/26
Filed: 1937-01-19
Abstract: A brazing alloy for use with the aluminium alloy known under the Registered Trade Mark "Duralumin," consists of 67,38 parts of tin, 2,61 parts of silver, 1,2 parts of lead, 0,04 parts of antimony, and 28,71 parts of zinc, the proportions being variable within a limit of 3 per cent on either side.  The alloy may be made by first melting the silver, adding the tin, and then the other constituents, the zinc being added last at a temperature near its melting point.  The Specification as open to inspection under Sect. 91 states also that the alloy may contain in addition sulphur and aluminium. This subject-matter does not appear in the Specification as accepted.
Patent GB-264842-A (GB)
Title: An improved method of and apparatus for navigating aircraft
IPC: G01C21/20
Filed: 1927-01-19
Abstract: 264,842. Junkers, H. Jan. 21, 1926, [Convention date]. Aerial navigation, sighting-apparatus for.-For navigating aircraft so as to steer on a straight course towards an object on the ground, actual pictures of the compass and of the landscape are produced optically, the observed direction of displacement of the landscape is transferred to the compass picture, and the aircraft is steered so that this direction agrees with the desired course. For producing the compass picture, the compass 2 is mounted in a casing 1, Fig. 1, containing a reflector 5, lens 4, and image-receiving screen 6 over which is mounted a rotatable pointer 7. A course-setting pointer 16 is mounted on the moving part of the compass so that its image is also produced on the screen. A similar device, in which however the compass is replaced by a positive lens, is used to produce an image of the landscape on a screen 13, Fig. 3, provided with a rotatable pointer 14. The two screens are disposed adjacent each other and the pointers are caused to turn together as by the mechanical connection 15. A lubber mark 17 is provided on the screen 6. To use the device to correct for drift the pointer 16 is set to the bearing of the desired ground course, correction being applied for deviation and compass error. The pointer 14 is turned to the direction in which the landscape is observed to move over the screen 13 and the craft is then steered to make the pointers 7, 16 coincide. The two images may be produced one within the other, Fig. 9, in which case only a single pointer 18, extending over both images, is required. As another alternative the pointer 16 may be projected on to the landscape picture, in which case no other pointers are required. Instead of mounting the pointer 16 on the compass it may be combined with one of the pointers 7, 14 or it may be dispensed with altogether, and instead one of the pictures made rotatable as by rotating the reflector 5.
Patent GB-326601-A (GB)
Title: Improvements in or relating to apparatus for heating liquids
IPC: A47J31/057
Filed: 1929-01-17
Abstract: 326,601. Lee, E. L., and George, C. H. L. Jan. 17, 1929. Heating by electricity.-A container 11, fitted with electric heating means, supporting a receptacle 16 for heated liquid such as a tea pot on a platform 15 spring-pressed upwards, is fitted with a pipe 25 with spout 26 so that on the water boiling steam pressure delivers the water to the receptacle 16. The increased weight causes the support to move downwards removing a conducting band 20 from between spring contacts 23, 24 thus breaking the electric circuit to the heating means.
Patent GB-851331-A (GB)
Title: Improvements in rotary pumps of the flexible tube type
Inventor: HOWARTH PERCY
IPC: F04B43/00
Filed: 1959-01-16
Abstract: 851,331. Rotary pumps. SIMON Ltd., H. Feb. 2, 1959 [Jan. 16, 1959], No. 1704/59. Class 110 (2). In a rotary pump of the flexible tube type the tube d when flattened is of a greater width than the rollers c (see Fig. 3, not shown), and is supported by a resilient plate e which is fixed at one end and free at the other end-to slide over an abutment support as it yields under the action of the rollers.
Patent GB-606758-A (GB)
Title: Improvements in or relating to closed cycle hot-gas engines
IPC: F02G1/053
Filed: 1946-01-18
Abstract: 606,758. Dynamo-electric machines. NAAMLOOZE VENNOOTSCHAP PHILIPS'GLOEILAMPENFABRIEKEN. Jan. 18, 1946, No. 1749. Convention date, March 3, 1941. Drawings to Specification. [Class 35] [Also in Group XXVII] The rotor of an electric generator is located inside a cylindrical projection on the casing of a hot-gas engine and the generator stator is located outside the projection.
Patent GB-623191-A (GB)
Title: Method for firing porcelain
IPC: C04B33/32
Filed: 1946-06-11
Abstract: 623,191. Firing pottery. BERNARDAUD ET CIE., L. June 11, 1946, No. 17497. Convention date, April 17. Drawings to Specification. [Class 87(i)] [Also in Group XXIII] Glazed biscuit-ware is fired throughout in a reducing atmosphere of carbon monoxide and hydrogen, mixed with carbon dioxide and steam, the amount of carbon monoxide being small. The cooling phase may take place in the same, a neutral or a slightly oxidising atmosphere. Cooling after the first 50‹C may be very rapid. The process is applicable to Sevres blue ware.
Patent GB-391550-A (GB)
Title: Machine for the manufacture of shoes with rubber soles
IPC: B29D35/06
Filed: 1932-01-20
Abstract: 391,550. Vulcanizing boots. LAURA, G. B., Saronno, Varese, Italy. Jan. 20, 1932, No. 1764. [Class 70.] Rubber soles are vulcanized to uppers in apparatus comprising a metallic last 1, Fig. 6, on which is placed a plate 16 with upturned edges, carrying the insole, a sole mould 17, and a plurality of movable segments, e.g. 3, 4 adapted to press the upper against a resilient strip 15 in the last, to prevent creeping of the rubber sole. An upper, with a string attached to its lower edge as shown in Fig. 10, is placed on the last with the plate 16 and insole in position, the ends of the string are taken over sheaves 35 and fastened to cleats 39, and the sheaves are rotated by a pedal-operated cable, and held against a spring-return by a pawl, to draw in the lower edge of the upper as shown. The mould 17 containing the sole, Fig. 4, is forced down on the last, and, through links 20, 21, 11, operates end-plates 5, 6, and side-plates 3, 4, mounted on shafts connected by bevels, of which 8b only is shown in the Figure. A spring 23 ensures the closing of the side members before the mould is in position. A lost-motion device allows the heel segment to be opened and closed manually. On completion of the vulcanization, the mould 17 is raised and the side and toe segments moved away from the last. The string is then released, the heel segment moved out of engagement, and the heel of the shoe is forced upwards and forwards by a rod passing through the last. The shape of the segments produces a bead A, Fig. 17, round the shoe, while the upstanding ridge round the plate containing the insole causes the upper to be folded as at B, with the result that there is less tendency for the sole to be torn away from the upper at its edge.