baber/WOPTO huggingface dataset:
Patent GB-617417-A (GB)
Title: A thermionic relay for the protection of electrical circuits
IPC: H02H3/08
Filed: 1946-05-17
Abstract: 617,417. Protective cut-out arrangements. HONEY, H., READMAN, A., and LONDON PASSENGER TRANSPORT BOARD. May 17, 1946, No. 12559/45. [Class 38 (v)] [Also in Group XL (c)] An overload protective system comprises a cold cathode gas-discharge tube 57 located between a transformer 54, supplied with current proportional to the current in the main circuit, and a trip circuit, a resistor 52 being connected across the transformer secondary, whilst a rectified current passes from tube 57 to a second cold cathode tube 68 connected to the trip circuit. On overload, the voltage across the resistor 52 rises until the tube 57 strikes, whereupon an auxiliary electrode 71 in tube 68 becomes positive with respect to its cathode 67, due to the voltage-doubler circuit 62, 63. 74, 75. The tube 68 breaks down, to energize the trip circuit and an indicator coil 79, with a time delay produced by a variable resistor 70 and a condenser 77. By moving a test switch 64 to the dotted position, the system can be tested from the D.C. trip supply (+) ( - ).
Patent GB-543583-A (GB)
Title: Electromagnetically driven hydraulic pump comprising an oscillating pump membrane and operating according to the principle of resonance
IPC: F04B43/04
Filed: 1940-08-05
Abstract: 543,583. Diaphragm pumps. SZENTGYORGYI, J., and PATHY, E. Aug. 5, 1940, No. 12610. [Class 102 (i)] In an hydraulic pump in which an electromagnetically operated diaphragm 7 oscillates in resonance with the frequency of the alternating current passing through the electromagnet 2, the pumping space 10 between the suction valves 14, the delivery valves 15, and the diaphragm 7 is made as narrow as possible by arranging the valves 14, 15 in the side walls of two concentric cylinders 9, 13, the diaphragm 7 forming the base of the outer cylinder 9. The mass of liquid oscillating with the diaphragm is reduced by means of air-filled members 16 with yielding or resilient boundary surfaces disposed in the delivery space 12 of the pump, and similar members 18 may also be disposed in the suction space 11. The diaphragm is connected to a rod 4 which carries the armature 5 and passes freely through the electro-magnet 2, the latter being disposed between the diaphragm and a relatively strong oscillating spring 3. The valves 14, 15 consist of numerous small orifices closed by rubber ring valves, whilst the members 16, 18 may be in the form of bulbs or hoses. By making the valves in the form of air-filled hoses, they may act as oscillation dampers. Alternatively the members 16, and/or 18 may be replaced by one or more externally arranged air chests 20 disposed as close as possible to the delivery and/or suction spaces. Instead of the form shown, each air chest may be in the form of a narrow pipe or a double casing to the pump. In a modification, a diaphragm provided at the bottom of the inner pump cylinder 13 acts as an oscillation damper.
Patent GB-585699-A (GB)
Title: Improvements in apparatus for spraying powders and the like
IPC: B05B9/08
Filed: 1944-07-03
Abstract: 585,699. Powder distributers. CAKEBREAD, C., and MONRO, Ltd., G. July 3, 1944, No. 12618. [Class 18] Powders, e.g., fertilisers, in a canister 21 can be sprayed by an air pump 7-11 which blows air through a flap valve 10 and through a bore 33 into the canister, a cloud of powder being delivered through ports 27 and 26, all these ports being formed in a valve barrel 25 which can be rotated by a handle 36 either to seal off the canister from the air to preserve the contents or to blow powder as a cloud or to blow air from the pump to the discharge port 26 to clear it. The canister is screwed into a skirt 3 in the pump and is provided with a foot stirrup 23. The top of the pump barrel is held on by releasable spring clips 17. A spring clip 24 holds the pump handle 18 when not being operated.
Patent GB-723358-A (GB)
Title: Improvements in and relating to mechanisms for separating the weft threads of drop box looms
IPC: D03D45/50
Filed: 1952-05-20
Abstract: 723,358. Looms. SOC. ANON. A. SAURER. May 20, 1952 [July 3, 1951], No. 12709/52. Class 142 (2). Change-boxes, weft catching motions for. While the drop-box is being operated the portion of the weft extending between the selvage and the shuttle box is carried clear of the path of the next shuttle to prevent it being trailed into the shed. In one embodiment a rotary member 24 having arms 25, 26, 27, 28 is mounted on the slay and is actuated from the dropbox by means of a rack 21 and a system of gear wheels so that, when the drop-box is operated, the member 24 is rotated and one of the arms carries the weft clear of the path of the next shuttle. Only the weft of the active shuttle lies in the shuttle path, the other weft threads lying in different spaces between the arms of member 24 and being guided by a thread guide 33 fixed to the slay. In an alternative construction the rotary member comprises a disc having openings through which the shuttles pass. In this embodiment the thread guide 33 is dispensed with. The rotary member is preferably of flexible material, or flexibly mounted, so as to give way should a shuttle deviate from the normal path.
Patent GB-309323-A (GB)
Title: Improvements in milk-bottle supports
IPC: A47G29/18
Filed: 1928-05-01
Abstract: 309,323. Simmonds, H. A. May 1, 1928, Brackets.-In a milk bottle holder of the kind consisting of the base b with a projecting fork member a, the outer ends of prongs are provided with raised heads d bevelled to receive the rim of the bottle and to act as stops to prevent accidental displacement of the bottle. The base may be angular for attachment on a carrier.
Patent GB-206537-A (GB)
Title: Improvements in or relating to aeroplanes and other aircraft
IPC: B64D7/02
Filed: 1922-05-08
Abstract: 206,537. Roe & Co., Ltd., A. V., and Chadwich, R. May 8, 1922. Cars and cabins: tanks, arrangement and disposition of; planes and the like, construction of. -The accommodation space of an aeroplane is separated from the rest of the fuselage by fore and aft bulkheads 2, 4, and is divided by a vertical partition 5 into two compartments each of which is horizontally divided into two or more compartments by a deck or decks. The forward portion is divided by a deck 6, the upper compartment housing the petrol tank 7 and the lower compartment being used to carry bombs 9. The rear portion is also subdivided by two platforms 10, 10<a>, the upper space being divided into two or more cockpits 11, 12, by a vertical partition 13. The cockpit 11 is furnished with a gun 17<a> and accommodates the pilot whose seat 15 is hinged to form a hatchway to permit access to the lower deck by means of a ladder 18. The cockpit 12, which is provided with a seat 16 and one or more guns 17, also communicates with the lower deck by means of a hatchway and a ladder 18<a> having at its end a seat 19 which may be collapsable. The floor cf the lower deck is fitted with a downwardly-firing gun 30, a window 21 above which is arranged a camera 22, and other windows for observation, bomb-sighting &c. According to a modification the wings may also be provided with cabins or compartments in a similar manner to the fuselage. The Provisional Specification describes a passenger-carrying aeroplane, the fuselage of which is divided into two or more decks with companion ways for communication purposes.
Patent GB-1038692-A (GB)
Title: Vapour generator wall construction
IPC: F22B37/36
Filed: 1963-04-01
Abstract: 1,038,692. Casings for steam boilers; furnace walls. FOSTER WHEELER Ltd. April 1, 1963 [March 30, 1962], No. 12909/63. Headings F4A and F4B. In a water-tube steam boiler wherein the tube walls of the furnace, etc., are encircled and supported by buckstays, the tube panels are covered by plates secured to the outside of the tubes to form a skin casing or the tubes are finned to seal the furnace etc., and the buckstays are also secured to the tubes, the whole being covered with insulation so that in operation the tube panels casing and buckstays will be at about the same temperature and the boiler will expand or contract as a unitary structure. The boiler, Fig. 1 (not shown), has a tube-lined furnace 12 separated by a wall 18 from a down pass 24 and an up-pass 26 containing banks of generating tubes extending between drums 30, 28. The boiler wall construction is shown in Fig. 3. A plurality of rectangular casing plates 34 are welded alternately at their upper and lower edges to the tubes 32 the meeting edges of each pair of plates being outwardly flanged at 52 and being welded together and to the outer edge of end bars 54 the inner edge of which is scalloped to fit the tubes and is welded thereto. Buckstays 40 are welded to the casing plates at 42 and supported by angle bars 50. The outside of the wall is covered with insulation 60 so as completely to contain the buckstays which are welded together at the corners of the furnace. In a modification the inner buckstay flanges are welded directly to the tubes and the edges of the casing plates bent to overlap the flanges. In a further modification the tubes are finned to seal the furnace, casing plates being omitted, and the buckstays are supported in hooks welded to the tubes the whole being covered with insulation.
Patent GB-936642-A (GB)
Title: Method of making composite die-cast articles
IPC: B22D17/24
Filed: 1962-04-04
Abstract: 936,642. Casting composite articles. NATIONAL LEAD CO. April 4, 1962 [April 18, 1961], No. 12929/62. Class 83 (1). An insert about which a metal of lower melting point is to be die-cast, e.g. a grey iron liner for an aluminium &c. cylinder block is supported in the dies by a holder on which it is shrink-fitted, the solidified casting with the insert and holder being removed from the dies and the holder withdrawn from the casting after cooling it to cause shrinkage. Fig. 4 shows a cylinder liner 21 mounted on a steel holder 20 being inserted on a core pin 26 in the ejector die part 28. Aluminium is pressure die-cast on to the insert, the support afforded by the holder preventing fracture &c. of the liner. After a period of cooling the casting together with the holder is ejected, Fig. 7. A spray head is raised into the holder, whose contraction then enables it to be pushed out of the casting by e.g. a fluid-operated ram.
Patent GB-583929-A (GB)
Title: Improvements in or relating to tricked beds for needles and other individual instrumentalities of knitting machines
IPC: D04B15/00
Filed: 1944-07-10
Abstract: 583,929. Knitting. MELLOR, BROMLEY, & CO., Ltd., and SHORTLAND, A. July 10, 1944, No. 13132. [Class 74 (ii)] Blade-like metal inserts a or d, constituting trick walls in knitting machine beds have, along the whole or part of their lengths, lateral prominences a' or d<1>, formed on those parts projecting from the grooves in the bed, to provide bearing surfaces for the needles or the like located in the tricks. The accompanying depressions may serve to retain lubricant. The prominences may be transverse corrugations or indentations formed by pressing or may be produced by milling or cutting portions made slightly thicker than the remainder, In dial inserts, the lateral formations are of gradually diminishing prominence from the outer end and may gradually merge into the main body of the insert. The outer end of each dial insert may be bent round to provide a lateral bearing surface. The grooves in the dial may be made by a circular cutter, the portions a<4> of each insert being bowed to correspond with the resulting concave base of the groove. The insert may be relatively short and form continuations of an inner series of tricks h cut in the dial, which may have a peripheral verge to provide further lateral support for the needles. In either dial or cylinder, each insert may be secured by pushing a bevelled end (or a bevelled projection a<2>, Fig. 5, or d<2>, Fig. 6, on one end thereof) into an undercut part b<2> or c<2> of a recess b<1> or c<1>, and fixing the opposite bevelled end a' or d<3> of the insert by swaging or upsetting a corresponding undercut part b<3> or c<3> of the dial or cylinder. That part of the insert which enters the groove may be of a standard thickness, the insert being adapted for different gauges of bed by varying the degree of prominence of the formations. Reference has been directed by the Comptroller to Specifications 361,321 and 493,589.
Patent GB-1327992-A (GB)
Title: Mould assembly for cocoon casting of directionally solidified articles
IPC: C30B11/14
Filed: 1971-05-05
Abstract: 1327992 Casting and foundry moulding processes UNITED AIRCRAFT CORP 5 May 1971 [1 June 1970] 13145/71 Heading B3F A mould for producing directionally solidified cast articles includes a first mould portion 4 having an article (turbine blade) forming cavity 5, 8, 10, 12 and beneath this cavity a columnar crystal growth starting cavity 14 having an open bottom. A second mould portion 2 (see Fig. 10) surrounds the first poition 4 to define a pair of cavities 18 (see Fig. 7) at opposed sides of the article-forming cavity 5. The cavities 18 are connected towards the base of the mould where they surround and may open into the open bottom of the crystal growth starting cavity 14. A chill plate 3 closes the base of the cavity formed by the second mould portion 2 about the article and crystal growth starting cavities. In operation, the mould is preheated and molten alloy poured in a vacuum through a sprue 47 into the cavities 18. The molten alloy enters the article-forming cavity 5 through the columnar crystal growth starting cavity 14. Alternatively, the alloy can be poured into article-forming cavity 5 and from there enter cavities 18. Upward solidification is induced from the chill plate, the helical part of the crystal growth starting cavity 14 selecting a single crystal to grow into the article-forming cavity 5. In an alternative embodiment, the article-forming cavity is not interconnected with outer cavities 18, and consequently the crystal growth starting portion (42) is extended downwardly so that its open bottom is closed by a chill plate (36). In this embodiment a cheaper alloy may be poured into the cavities 18 and may be used to surround the article formed. To separate the cast article from the sheath cast about it in cavities 18 and the crystal growth casting portions, a single saw cut is made across the base of the article just below a line 13. Moulding processes.-To form the mould a wax pattern of the article, crystal growth cavity and sprue is first invested to form a first shell mould portion 4. A wax overlay is then provided on the first portion 4 to form the cavities 18 and their extension (19) that surrounds the crystal growth cavity. The assembly of patterns and first portion 4 is once again iuvested to form a second shell portion 2 and the wax patterns melted out.
Patent GB-505063-A (GB)
Title: Improvements relating to the manufacture of artificial teeth
IPC: A61C13/00
Filed: 1938-05-03
Abstract: 505,063. Artificial teeth. MYERSON, S. May 3, 1938, No. 13170. Convention date, Dec. 20, 1937. [Class 81 (ii)] In a tooth of the kind formed of a main body 1 of relatively opaque material 1 and a facing 3 of relatively transparent material forming the incisal edge, the tooth being mounted on or secured to a support 8, the transparent material extends beyond the termination 1a of the body portion for a substantial distance and a layer 12 of light absorbing and diffusing material is interposed between the tooth facing and its support so as to simulate the effect of the dark oval cavity. The masking layer may be limited to the exposed lingual surface of the transparent material as shown at 12b, Fig. 6, in which the tooth is secured to its support by a key and keyway 11x, 11y. In the construction shown in Fig. 8, the support is a metallic backing 10a to which the tooth is secured by a pin 11a.
Patent GB-475042-A (GB)
Title: Improvements in the production of organic compounds of arsenic
IPC: C07F9/74
Filed: 1936-05-09
Abstract: Aryl-thioarsinites are prepared by condensing aryl arsenoxides or aryl arsine dihalides with the butyl or amyl esters of thioglycollic acid or its a -substituted derivatives.  The products, which are oil-soluble, posses therapeutic properties. According to the examples: (1) p - methylcarboxymethoxyphenyl - arsenoxide, prepared by treatment of the corresponding arsinic acid with sulphur dioxide and potassium iodide in the presence of methyl alcoholic hydrogen chloride and decomposition of the resulting diiodoarsine with ammonia, is reacted with dibutyl thiomalic ester to give di(a b -dibutylcarboxyethyl) - 4 - methylcarboxymethoxyphenyl-thioarsinite; similar compounds are obtained from 3-acetamido-4-hydroxyphenylarsenoxide, 2 - hydroxy - 4 - acetamidophenyl-arsenoxide, 2 - hydroxy - 5 - acetamidophenyl-arsenoxide and 2 - hydroxy - 5 - aminophenyldichlorarsine; (2) p - acetamidophenyl - arsenoxide is condensed with amyl thioglycollate in alcohol solution. Specification 331,869, [Class 2 (iii)], is referred to.  The sample furnished under Sect. 2 (5) consists of di(a  - butylcarboxyethyl) - 5 - acetmido - 2 - hydroxyphenyl - thioarsinite and is prepared by heating 5-acetamido-2-hydroxyphenyl-arsenoxide with butyl a -mercaptopropionate in alcohol solution.  Mercapto - carboxylic acid esters.--Amyl thioglycollate is prepared by heating thioglycollic acid (thiolacetic acid) with isoamyl alcohol in the presence of hydrochloric acid.  The butyl and dibutyl esters of a -mercaptopropionic acid and thiomalic acid respectively are similarly prepared.
Patent GB-602443-A (GB)
Title: Improvements in and relating to electric tumbler switches
IPC: H01H23/12
Filed: 1946-05-01
Abstract: 602,443. Switch pivots ; tumbler switches. NEW DAY ELECTRICAL ACCESSORIES, Ltd., and DAVEY, L. E. W. C. N. May 1, 1946, No. 13224. [Class 38 (v)] Ball-bearings 3 journal the dolly 1 of a tumbler switch and are housed between spherically curved recesses 2, 4 in the dolly 1 and casing parts 5. A spring-urged ball 11 actuates a centrallypivoted contact-carrying or contact-actuating plate 12. In a modification (not illustrated), the recessed casing parts may be sprung apart to admit the balls or the dolly. Spherical-ended elements may replace the balls 3.
Patent GB-1235767-A (GB)
Title: A polishing ring
IPC: B24D13/04
Filed: 1969-03-13
Abstract: 1,235,767. Abrading. J. BIRKENSTOCK, [trading as BI-FLEX BIRKENSTOCK KG.]. 13 March, 1969 [16 March, 1968], No. 13230/69. Heading B3D. A polishing ring comprises individual textile strips K which are each laid in U-shape around a carrying ring 1 to form a polishing rim, the arms 2<SP>1</SP>, 2<SP>11</SP> being interconnected on the outside of the ring by a quilting seam 4 or the like, each arm of each U being crinkled by a multiple twisting of the textile strip. Each textile strip consists of diagonally woven fabric and is crinkled by multiple twisting around its longitudinal axis. A plurality of twisted strips are formed into U-shape and disposed around the ring 1 which may be of iron or plastics material and are secured thereto by stitching 4. The apex zone of the strips may be fixed by hot ironing and the threads of the fabric may be given a strong binding by impregnation. A number of strips may be disposed one above the other.
Patent GB-912863-A (GB)
Title: New or improved means for animating optically projected images
IPC: G09F19/18
Filed: 1960-04-13
Abstract: 912,863. Polarizing image-animating devices. TECHNICAL ANIMATIONS Inc. April 13, 1960 [July 28, 1959], No. 13241/60. Class 97 (1). For giving an impression of movement in part of a projected image (or a directly viewed transparency) a laminated assembly comprising a polarizing lamina and a lamina made up of bi-refractive elements, the two laminµ being stuck together, is applied to the corresponding part of the image-bearing transparency. The image-carrying beam is then directed through a rotating polarizer. As shown in section in Fig. 3 the assembly comprises transparent supporting sheets 8, 10, between which is a polarizer 9, a layer 7 containing the bi-refringent elements and a protective backing layer 12 for an adhesive layer 11. The layers are held together by transparent adhesive layers 13. A second polarizing element is rotatably mounted in the projecting apparatus. As shown in Fig. 4 the bi-refringent elements are in the form of strips, preferably of a molecularly-oriented resin, the molecules in each strip having their optic axes parallel and at a small angle to those in an adjacent strip as indicated by the hatched lines. An interference colour produced by phase retardation in the first strip in conjunction with a particular angular setting of the polarizing axis of the rotatable polarizer will be duplicated at successive strips on rotation of the polarizer as this angular relationship between the polarizer axis and the optic axis of each successive strip becomes satisfied. The interference colour will thus appear to move across the strips. Adjacent sector-shaped strips may be arranged to form a circle whereby an apparent rotary motion is produced in the projected image. Concentric annular strips produce radial movement. A random arrangement of small elements will produce a " sparkling " effect. If a diagonal half of a rectangular array of linear strips as in Fig. 4 is covered with a quarter-wave plate, the motions produced by the two diagonal halves will be in opposite directions. Specification 912,864 is referred to.
Patent GB-1134422-A (GB)
Title: Process for the preparation of filled thermoplastic materials
IPC: C08L77/00
Filed: 1966-04-06
Abstract: 1,134,422. Polyolefin compositions. STAMICARBON N.V. 6 April, 1966 [9 April, 1965], No. 15361/66. Heading C3P. Thermoplastic hydrocarbon polymers are filled with 10 to 50 weight per cent of the resulting composition of at least two fillers, at least one of which is fibrous and at least one of which is powdery, reinforcing and inorganic. The polymer may be a homopolymer, copolymer or block copolymer of ethylene, propylene, butylene, isobutylene, pentene, isopentene, hexene, 4-methylpentene-1 or styrene. The fibrous filler may be rock wool, or glass, quartz, ceramic asbestos, polyester, polypropylene or rayon fibres. The powdery filler may be calcium or barium sulphate, magnesium carbonate, silica, magnesium or aluminium silicate, fly ash, ground granite, powdered slate, calcium carbonate or talc. The compositions may also contain pigments, matting agents, lubricants, antistatic agents, stabilizers and blowing agents, and may be moulded to form doors, floor and wall coverings, switches, gears, instrument panels and pump casings. Examples describe compositions comprising asbestos and (1-4) polyethylene and talc, (5) polyethylene and calcium carbonate and (6) isotactic polypropylene and calcium carbonate.