baber/WOPTO huggingface dataset:
Patent GB-595176-A (GB)
Title: Improvements in or relating to remote control systems
IPC: F15B9/09
Filed: 1943-02-19
Abstract: 595,176. Reciprocating pumps. MASSACHUSETTS INSTITUTE OF TECHNOLOGY. Feb. 19, 1943, No. 2836. Convention date, Sept. 20, 1941. [Class 102 (i)] [Also in Groups XXIX and XXXVIII] A remote control system, especially adapted for controlling objects having considerable inertia such as guns, rotatably mounted searchlights and the like, includes a variable speed driving means for the controlled object, the speed control of which is adjusted by the positional disagreement between the controlling and controlled objects and by variations in the position of the speed regulating member acting through a delay action device. As shown in Fig. 1, a platform 18 carrying a gun 18<1> and controlled by a hand wheel 1 is rotated through bevel gearing 17, 17<1> by a variable speed hydraulic motor 51 supplied with motive fluid by a variable stroke pump 50 rotated by a motor 50<1> and regulated by a double-acting piston 45. The output of the pump and speed of the hydraulic motor is varied by tilting the cylinder block by means of a yoke 52 pivoted on the pump trunnions and coupled to the piston 45. The piston is controlled by a piston valve having lands 27, 28, 29, 30 working in a ported follow-up sleeve 26 coupled to the piston by rods 48, 62, link 58 and lever 59. To prevent sticking, the lever 59 is connected by a link to a slotted lever 67 continuously oscillated by an eccentric rotated by a motor 63 adjustably mounted on a base 64. The dither has a frequency of 30 to 60 cycles per second and an amplitude sufficient to open slightly the valve at each end of the movement so that dither is applied to the pump 50, motor 51 and gearing 17, 17<1>. The piston valve is actuated by a lever 20 turned by the rotor 8 of an electrical differential torque motor 9 connected by three leads 7 to the rotor 3 of a Selsyn transmitter actuated by the hand wheel 1. The stator of the differential is connected by three leads 12 to the rotor of a second Selsyn transmitter operated by the shaft 16 carrying the gears 17, 17'. The stators of the transmitters are fed with A.C. from mains 6. The rod 48 has an arm connected by a tension compression spring 72 to a lever 76 mounted on an adjustable fulcrum 77 connected by a link 78 to a lever turning on a fixed pivot 21 coupled by springs 11, 11<1> to the lever 20. The lever 76 is also coupled to the piston 70 of a dashpot 71 provided with a byepass 74 fitted with a series of thin discs with small staggered apertures.
Patent GB-377578-A (GB)
Title: Improvements in centrifugal machines or hydro-extractors
IPC: B04B7/02
Filed: 1932-01-30
Abstract: 377,578. Centrifugal machines. WATSON, LAIDLAW & CO., LTD., and DUNSMORE, A. F., 98, Laidlaw Street, Glasgow. Jan. 30, 1932, No. 2839. [Class 23.] The basket 4 of a centrifugal machine has a cover consisting of two substantially semicircular plates 1, 2 hinged along axes 3 parallel to a diameter of the basket on the bridge piece 8. This bridge is unitary with a sleeve or boss 9 which abuts at its lower end on the boss of the basket 4. Wedge members 10 on the adjacent edges of the plates 1, 2 can be engaged by pivoted snibs 11 to press the plates on to packing strips 13. The arcuate edge of each plate rests on the ledge 15 presented by the rim of the basket, and catches 18 pivoted on the plates can be swung by handles 20 into the recess 17 in the ring 16 encircling the basket. When the plates are raised to open the basket they are held raised by spring ball detents 5 carried by a collar 6 on the shaft 7.
Patent GB-382821-A (GB)
Title: Improvements in or relating to apparatus for drawing wire, rods, tubes, ornamental beading, and the like
IPC: B21C3/14
Filed: 1932-01-30
Abstract: 382,821. Drawing. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Longwell, J. R. ; 1770, E. 45th Street, Cleveland, Ohio, U.S.A.) Jan. 30, 1932, No. 2853. Convention date, Jan. 31, 1931. [Class 83 (iv).] Wire, rods, &c. are supplied during drawing with lubricant under pressure through an inlet 26, an annular channel 19, and passages 20, to a chamber 27 formed between dies 16, 17, the former effecting a light draw and serving to seal the chamber while the latter effects the main drawing operation. The lubricant pressure may be of the order of 30000 lbs. per square inch. The dies are supported in a holder of the form shown, a retaining member 23 being secured by bolts 24 in a sleeve 10.
Patent GB-384470-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H04B1/12
Filed: 1932-01-30
Abstract: 384,470. Wireless receiving systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London. -(Assignees of Beverage, H. H. ; Riverhead, Long Island, New York, U.S.A.) Jan. 30, 1932, No. 2868. Convention date, Feb. 21, 1931. [Class 40 (v).] In an aircraft receiving installation, disturbances picked up by the aerial and due to the engine ignition system are compensated by applying to the input of the receiver a component of correct amplitude and phase obtained from the disturbing source by means including an auxiliary linear aerial extending towards the latter. The receiver 2, Fig. 1, mounted in the aircraft body 1 is fed from a trailing aerial T, connected through inductance L and capacity C1 to earth G, which is the metal framework of the aircraft. A linear conductor D extending towards the disturbing source E is connected through variable capacity C2 to the junction of L and C1 ; by varying the capacity C2 the effect of disturbances may be substantially balanced out in the inductance L. When the filament supply is earthed, inductances L1, L2, Fig. 3, are inserted in the filament supply leads unless the inductance of the leads is sufficiently great so that the capacity C1 is not, in effect, short-circuited. The aerial system may be coupled to the receiver through coils L, W, separated by an earthed screen S formed of a grid of wires to allow electromagnetic but not electrostatic coupling between them. In a further modification, Fig. 4, (not shown) where the inductance of the earth lead is appreciable, the condenser C1 and coils L1, L2 are omitted and the lead D is connected through a condenser to the aerial end of coil L. It is shown that the arrangements described form balanced Wheatstone bridge circuits with the inductance L in one diagonal thereof.
Patent GB-1402044-A (GB)
Title: Methyl methacrylate resins
IPC: C08K5/51
Filed: 1973-01-19
Abstract: 1402044 Fire-retardant resins ROHM GmbH 19 Jan 1973 [21 Jan 1972] 2946/73 Heading C3P Synthetic resin compositions comprise a mixture of (1) 60 to 97% by weight of a copolymer of (a) 50 to 87 parts by weight of methyl methacrylate or a mixture thereof with at least one further non- bromine-containing radically polymerizable co-monomer, and (b) 10 to 40 parts by weight of a compound of formula (wherein R is a hydrogen atom or a lower alkyl group, Ar a phenyl group which may, if desired, be substituted (in addition to bromine substituents), Alk an alkylene group, n=0 or 1, p=0 or (providing n= 1) 1, and m an integer from 1 to 5); and (2) 40 to 3% by weight of a monomersoluble phosphorus-based fire retardant, the percentages being based upon the total weight of components (1) and (2). The compositions are prepared by polymerizing the monomer mixture in the presence of the fire-retardant and a catalyst, e.g. a mixture of dilauroyl peroxide and azo-bis-isobutyronitrile. The fire-retardant may be phosphoric acid, an organic ester of phosphoric acid or an ester of an organic phosphoric acid, especially esters containing chlorine. Numerous suitable retardants are listed. In examples methyl methacrylate is copolymerized with di-, tri- or pentabromophenyl methacrylate in the presence of phosphoric acid, tris(bromocresyl)phosphate or a chloroalkyl phosphonate of formula
Patent GB-346876-A (GB)
Title: Improvements in connection with twist tubes for machines for preparing and spinning fibrous materials
IPC: D01H7/92
Filed: 1930-01-29
Abstract: 346,876. Twist tubes for preparing and spinning fibrous material. BROTHERS, H., The Croft, Cam, Gloucestershire. Jan. 29, 1930, No. 2990. [Class 120 (ii).] A cap f, provided with a marginal cylindrical flange h adapted to fit over the outside of the upper end of a twist tube a or in a rabbet formed around or in the upper end, is of concave, convex or plane formation, and the margin of the central hole i is provided with a notch or notches k, separated by inwardly directed projections j, for engagement with the material as it passes through the tube. The caps may also be applied to mouthpieces fitted to the upper parts of twist tubes. Specification 344,476 is referred to.
Patent GB-442396-A (GB)
Title: Improvements in and relating to thermal insulations
IPC: F25D23/06
Filed: 1935-01-30
Abstract: 442,396. Nonconducting coverings for heat ; refrigerating. NAAMLOOZE VENNOOTSCHAP INTERNATIONALE ALFOL-MAATSCHAPPIJ, 117, Keizergracht, Amsterdam. Jan. 30, 1935, No. 3074. Convention date, Feb. 2, 1934. [Classes 29 and 64 (ii)] The flow of heat is regulated by transmission through two or more gas layers of constant total thickness but variable individual thickness. In Fig. 2, a number of partitions 7 are connected by bellows 8 and are moved by a rod 9. The transmission of heat between the boundary surfaces 5, 6 is thereby varied. The movement of the partitions may be effected automatically by the pressure developed in one of the gas layers, Fig. 3 (not shown), or by means of a piston actuated by variations in the conditions of the gas layers, Fig. 4 (not shown), or by electromagnets arranged at their boundaries, Fig. 5 (not shown). The partitions may have projections to limit their approach to one another, Fig. 6 (not shown). In Fig. 7, the flow of heat between a solid source of cold 25 and a cooling chamber 28 is varied by the movement of thin polished metal sheets 30 having projections 31. This movement is effected by the expansible-liquid thermostat 32 directly, or by an interposed relay, Fig. 8 (not shown). The variation in the flow of heat may be controlled by any other physical variable.
Patent GB-1487988-A (GB)
Title: Tube corrugation apparatus
IPC: B21D15/06
Filed: 1976-01-27
Abstract: 1487988 Corrugating tubes STRAZA ENTERPRISES Ltd 27 Jan 1976 [30 Jan 1975] 03145/76 Heading B3E  Tube corrugating apparatus comprises a cylindrical sleeve for supporting the tube as a close sliding fit, the sleeve having a radially open circumferentially extending channel in which a plurality of mandrel-sections are radially movable by an actuator between retracted positions within the channel and extended positions in which the mandrel has a periphery conforming to the inner contour of a corrugation to be formed. In the figures, sleeve portions 12, 14 are connected by flanges 18, 22, spacers 24 and bolts 26. The mandrel sections 32, 34 have slots 40 whereby the spacers guide the sections radially In the extended position shown, the sections present a continuous outer periphery. The sections are moved outwardly by axial movement of plug 52 having cam faces 54, 56 such that alternate sections 34 move more than sections 32, and are returned by springs 62 acting on some or all of the sections. Sections 32 have plastics inserts 50 to reduce friction between the sections. Each section has a stop 64 co-operating with flange 18 to define the extended position of the section. After formation of each corrugation and return of the mandrel, the tube is indexed by clamps 68.
Patent GB-524421-A (GB)
Title: Thermoplastic material and a process for the manufacture of same
IPC: C08L89/00
Filed: 1939-01-30
Abstract: 524,421. Albumens. AASEN, A. Jan. 30, 1939, No. 3169. Convention date, Feb. 1, 1938. [Class 2 (iii)] A thermoplastic material is made by mixing fish meal and like protein-containing products with an aldehyde, preferably formaldehyde and kneading the mass under pressure in the presence of water at 80-150‹C. If fish bones are present they serve as a filler. 'In examples dry fish meal is treated with aqueous formaldehyde under pressure at (1) 110‹C. and (2) 135‹C.. the products being hardened by treatment at 135‹C. and 180‹C. respectively. The Specification as open to inspection under Sect. 91 contains an example in which the temperature is 100‹C. This subject-matter does not appear in the Specification as accepted.
Patent GB-1370753-A (GB)
Title: Filament support structure for large electron guns
IPC: H01J3/02
Filed: 1973-01-22
Abstract: 1370753 Electron beam apparatus; lasers UNITED STATES ATOMIC ENERGY COMMISSION 22 Jan 1973 [15 Feb 1972] 3172/73 Headings H1D and H1C An electron gun filament support structure comprises a plurality of opposing leaf springs 21 insulatedly mounted on a base 3, the springs having outwardly curving slotted ends 20 and being arranged to tension the filaments 5 which have enlarged ends engaging the slots. The filament may be a wire, rod, bar or woven structure. The springs and tray are of Mo containing Ti and Zr 0  and are spaced by sapphire insulators 16. The structure is used in a laser amplifier in which ionisation of a CO 2 , N 2 , He mixture in an optical cavity 11 is maintained by an electron beam 14. The mixture is pumped by a discharge between a cathode 7 and anode 9.
Patent GB-1034761-A (GB)
Title: Improvements in or relating to antenna
IPC: H01Q9/40
Filed: 1964-01-24
Abstract: 1,034,761. Aerials. K. T. CRAMNER. Jan. 24, 1964 [Feb. 28, 1963], No. 3231/64. Heading H4A. A wide band aerial consists of a rigid cylindrical body 24 having a metal netting sandwiched between two layers of plastics material such as dosed polyester resin reinforced by glass fibres, and a thin-walled metal cylinder 22 connected to the metal netting at the top portion 32 of the body 24 and supported at its metal base 20 to a recessed metal disc 14 which is supported in turn by a grounded support 10 of the aerial. The lower end of the body 24 is supported on an insulating disc 36 and is connected to the inner conductor of a coaxial feeder 40 at one edge 42, and the outer conductor of the-feeder is connected to the cylinder 22. A number of counterpoise elements 16 are secured to the metal disc 14.
Patent GB-914711-A (GB)
Title: Improvements in the production of porous articles and coatings
IPC: D06M15/37
Filed: 1959-01-29
Abstract: An unsupported, uniformly microporous sheet material is produced by forming a polymer solution essentially containing (1) a polymer component comprising at least one polymer which is either (a) a vinyl polymer or (b) a polyurea formed by chain extending a compound obtainable by the reaction of at least one polyalkylene ether glycol and at least one organic diisocyanate by means of a compound having two active hydrogen atoms bonded to amino nitrogen atoms, and (2) an organic solvent for the polymer component, adding an inert liquid which is a non-solvent for the polymer and is miscible with the organic solvent to the polymer solution until a substantially colloidal polymer dispersion is formed, coating this dispersion on to an impervious substrate, e.g. glass or stainless steel, treating the coated substrate with an inert liquid which is a non-solvent for the polymer component and is miscible with the organic solvent, drying the resulting product, and stripping the microporous sheet ffom the substrate. The coated substrate may be treated with water, ethylene glycol or glycerol and may be subjected to the action of steam.  The dried coating may be heat-treated at 140 DEG  to 200 DEG C. for 1 to 10 minutes. The polymer component may consist of polyvinyl chloride, poly-a -methyl styrene, one or more polyureas, or at least one vinyl polymer and at least 50% by weight of at least one polyurea. Examples of vinyl polymers, polyureas, polyalkylene ether glycols, and diisocyanates are given.  Examples of chain-extending agents, which may be hydrazine, substituted hydrazine, or a diamine in which the amino groups are primary or secondary, are also given.  Examples of suitable organic solvents for the polymer component are given, some of which are water-miscible and are employed in admixture therewith. Examples of the non-solvent inert liquid are also given and include water.  Specifications 914,712 and 914,713 are referred to.
Patent GB-705386-A (GB)
Title: Improvements in or relating to sealing devices between relatively rotating parts
Inventor: BOARDMAN JACK
IPC: F16J15/34
Filed: 1951-02-09
Abstract: 705,386. Stumps-box substitutes. ROLLSROYCE, Ltd. May 5, 1952 [Feb. 9, 1951], No. 3236/51. Class 122 (5) A rotary shaft sealing device comprises a sleeve 15 in sealing engagement with, axially slidable on and rotatable with the shaft 10 and having a surface resiliently urged into contact with a thrust surface 19b on the shaft housing which also has ribs 19a that co-operate with a surface on the sleeve 15 to form a seal and whose clearance therefrom is controlled by the engagement of the contact surfaces. The sleeve 15 closely surrounds the shaft 10 and is held against rotation thereon by a dowel 17 on the shaft engaging a slot 15d in the sleeve. A radial flange 15a on the sleeve is urged by a spring 13 into contact with the thrust surface 19b and forms a seal with the ribs 19a, the thrust surface and ribs being on a ring 19 fitted in a recess in the shaft housing 18. Lubricant is supplied to the contact surfaces through holes 20 in the flange 15a and slots 19c in the ring 19. In a modification the ring 19 is formed in two parts abutting over part-spherical surfaces.
Patent GB-434003-A (GB)
Title: Improvements in and relating to the casting of light metal pistons
IPC: B22C9/06
Filed: 1935-02-01
Abstract: 434,003. Casting composite pistons. MAHLE, E., 3, Rappweg, Stuttgart, Germany. Feb. 1, 1935, No. 3288. Convention date, June 27, 1934. [Class 83 (i)] A light metal piston 1 with embedded heavy metal insert 2 is cast in a mould having a unitary core 4. The insert 2 is supported by chill mould halves 3, projections 5, Fig. 6, of which pass through holes in the insert. Other projections may produce openings through the piston skirt. The molten metal may be forced into the mould under pressure.
Patent GB-1383533-A (GB)
Title: Electrical components
IPC: H03K3/356
Filed: 1972-01-26
Abstract: 1383533 Integrated circuit components SIEMENS AG 26 Jan 1972 [2 Feb 1971 19 Jan 1972] 3556/72 Heading H1K An integrated circuit is provided with a high ohmic resistance whose value is higher than that which would be achieved simply on the basis of the resistivity of the semi-conductor material. The resistance is constituted by a component which includes an ohmic electrode 2 on a zone 4 forming a PN junction with the material of the semi-conductor body 1, and a rectifying barrier, e.g. a PN junction or, as shown, a Schottky barrier, carrying an electrode 3, at least partially surrounding the zone 4. The resistance is situated between the electrodes 2 and 3, being mainly composed of the depletion region surrounding the junction around zone 4 when the junction is reverse-biased by a potential between electrodes 2 and 3, and the depletion region 9 formed adjacent the outer rectifying barrier when the latter is reverse biased by a potential between the electrode 3 and a further electrode 5 on the body 1. The depletion region 1 is caused to entirely surround the zone 4 as shown by the provision of a low resistivity layer 12 on the body 1, the depletion region 9 being restricted in width within the layer 12 but expanding laterally beneath the zone 4 within the body 1. A gap 15 is retained between the two depletion regions to prevent significant flow of breakdown current. Extension 18, 19 of the Schottky electrode 3 over the surrounding insulation 16, 17 preferably provides a "guard ring" which reduces field gradient at the barrier edge. Concentric annular doped guard rings at the inner and outer peripheries of the generally annular electrode 3 may alternatively be provided. Use of a pulsed voltage to reverse bias the junction around zone 4 reduces the overall value of the resistance, as does extension of the peripheral length of zone 4. Two such resistance components may provide load resistances in the two arms of a bi-stable trigger circuit for a storage element, the active elements in each arm being IGFETs or Schottky-gate FETs. Such use of a resistance incorporating a PN junction provides a temperature-compensated circuit.
Patent GB-1138603-A (GB)
Title: Improvements relating to electric switches
Inventor: ANGOLD EDWARD BARNABAS
IPC: H01H1/20
Filed: 1965-01-27
Abstract: 1,138,603. Retractive switches. PLESSEY CO. Ltd. 21 Jan., 1966 [27 Jan., 1965], No. 3616/65. Heading H1N. A switch, suitable for use in record players for example, comprises two separate insulating arms 7 and 8 loosely carrying respective rods 5 and 6 for bridging fixed contacts, such as 1, and jointly urged by a spring 11 against an operating member 12 such that after the contacts have been closed pivoting action allows overtravel of member 12. One arm may be wider than the other (as shown) to produce sequential closing of the contacts. The arms 7 and 8 and the member 12 are located in respective slots in the body moulding. The member 12 is bifurcated to straddle the end of spring 11 (Fig. 3, not shown).
Patent GB-547418-A (GB)
Title: Improvements relating to the chassis or underframes, and particularly the wheel-axles, of perambulators, push-chairs, and the like
IPC: B62B9/18
Filed: 1941-03-18
Abstract: 547,418. Perambulator and like undercarriages. BRETTELL, G. P. March 18, 1941, No. 3677. [Class 108 (ii)] A perambulator, push-chair or the like has underframe side members 1 each of which carries a pair of sheet metal stub axles 3 provided with integral attachment parts. In the construction shown the side members 1 are connected together by transverse members 2 having turned-in ends 8 bolted or attached to the side members. The stub axles are formed from sheet metal blanks pressed into a tubular part 3, and an arched part 5, flat wings 4 being left for attachment to the side members 1 by rivets 7. The transverse members 2 are curved in section, as shown in Fig. 8, and their turned-in ends 8 are also secured by the rivets 7 so that the underframe formed by the members 1, 2, 3 is quite rigid. The body (not shown) is supported by coil springs 11 each secured to the underframe by a bolt 13. In a modification the side members 1 may comprise C-shaped leaf springs, the stub axles and transverse members being secured thereto as described above.