baber/WOPTO huggingface dataset:
Patent GB-1030975-A (GB)
Title: Superconductor wires and cables
IPC: H01F6/06
Filed: 1965-04-13
Abstract: 1030975 Super-conductive conductors SIEMENS-SCHUCKERTWERKE AG 13 April 1965 [17 April 1964] 15841/65 Headings H1A and A4D A hard super-conductor in which the critical current is raised by the application of a magnetic field parallel to the direction of current flow is formed as a wire which has been twisted about its own axis so as to become elastically deformed. Because of deformations caused by this process the current flows in helical paths in the wire, thus when the wire is super-conducting it can carry a higher current that it would if it extended simply along the axis. Alternatively, the hard superconductor may in the form of a plurality of untwisted wires forming a cable, each wire extending the full length of the cable and at least one of the wires being coiled helically about the axis of the cable. Suitable super-conductors are the alloys niobium-zirconium, molybdenum-rhenium, and tantalum-titanium. In an embodiment a coldrolled wire of a niobium-zirconium alloy containing 25% zirconium was twisted about its own axis. The twisting could have been combined with a drawing operation during manufacture of the wire. The wire may be annealed to remove strains set up during twisting. Such wires may be used in winding the outer coils of super-conducting magnet coils. They are less affected by transverse magnetic fields than are comparable non-twisted wires. The cable shown is made of seven identical strands. One extends along the axis of the cable, four more are wound as a coarse multi-start helix about the first, and the remaining two are wound as a fine double-start helix on the outside of the cable. The field set up by the outer strands has an appreciable component parallel to the direction of current flow in the strands of the inner helix which itself sets up a field substantially parallel to the current flow in the central strand. This cable can carry more current than a cable in which the strands all unparallel to the cable axis. Other cable constructions are suggested.
Patent GB-355342-A (GB)
Title: Improvements in surface condensers
IPC: F28B1/02
Filed: 1930-05-23
Abstract: 355,342. Surface condensers. NOTT, A. J., 273, St. Marks Place, Staten Island, New York, U.S.A. May 23, 1930, No. 15920. [Class 64 (iii).] In a surface condenser consisting of a drum 10, fixed and axially moving tube sheets 11, 14, in which the end of the cooling tube 19 are sealed, and a packing between the sheet 14 and the drum, a lantern gland 27 with a single or double web is interposed between the packing rings of the stuffing- box in order to receive and distribute water in the packing under a pressure exceeding that of the circulating cooling water. The water may be obtained through a branch 29 from the condensate outflow pipe 28.
Patent GB-885123-A (GB)
Title: Improvements in or relating to devices for heating individual workpieces inductively
IPC: H05B6/02
Filed: 1958-05-19
Abstract: 885,123. Induction heating. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 19, 1958 [May 22, 1957], No. 16008/58. Class 39(3) Induction heating apparatus comprises a ceramic carrier 3 which is in two parts separated by a gap and which is secured to a carriage 2 movable over a stand 1 with respect to an induction coil 4 rigidly secured to the stand so that the gap can be moved into and out of the coil, a workpiece 5 to be heated being supported in the gap by lugs 6. In a modification, Fig. 3, the coil 4 is movable by a piston 19 working in a cylinder 20 and the two parts of the carrier are constituted by water cooled tubes 11 and 12, 13 the latter being joined together by a vertical support 14. In both embodiments a vertically movable pushrod 7 carrying a workpiece receiver 8 enables the workpiece 5 to be placed in position in the opening prior to heat treatment and removed afterwards.
Patent GB-906930-A (GB)
Title: Improvements in or relating to pencil sharpeners
IPC: B43L23/06
Filed: 1959-05-11
Abstract: 906,930. Pencil sharpeners. MERMAID ENGINEERING CO. Ltd., and ROMAN, I. July 27, 1960 [May 11, 1959], No. 16135/59. Class 146 (3). A pencil sharpener is formed by injecting nylon into a mould containing a metal blade insert 18 and core members to form a generally oval cavity 17 and a cavity having a cylindrical portion 15 and a conical end portion 16. The blade is inclined at about one or two degrees to the vertical plane and at about ten degrees to the longitudinal axis of the moulded housing 11, and its cutting edge passes through the apex 21 of the conical portion 16. Material cut from a pencil about which the sharpener is rotated is discharged through cavity 17. The sharpener may fit frictionally on a casing which contains an axially slidable piece of pencil lead gripped by four blade-like jaws. The jaws are opened by depressing the sharpener to allow the lead to project further and then removing it and rotating it about the lead.
Patent GB-637975-A (GB)
Title: Feeding mechanisms for sewing machines
IPC: D05B27/02
Filed: 1948-06-15
Abstract: 637,975. Sewing-machines. SINGER MANUFACTURING CO. June 15, 1948, No. 16141. Convention date, March 24. [Class 112] Feed by dogs. In a compact feed-bar mechanism for free-arm sewing-machines the feed-dog carrier is guided for horizontal and vertical movements by sliding connections and is directly connected to members which support it and impart its movements to it. Means are provided for putting the feed out of action by dropping the feed-dog below the surface of the throat-plate. In the embodiment shown, the feed-dog is fixed to the top of a ring-like carrier 35 surrounding, with clearance for movement, a bearing 26 for the loop-taker shaft. The bearing 26 has at one end a flange formed with vertical notches to receive lugs on one face of another ring member which has on its other face lugs engaging horizontallyarranged grooves in the adjacent face of the feed-dog carrier 35, the carrier being thus guided for vertical and horizontal movement without tilting ; a plate non-rotatably mounted on the bearing 26 fits against the other face of the carrier, and the guiding assembly is held together by this plate. The carrier 35 is connected by a link 79 with a curved arm 81 on the feed rock-shaft 39, which is actuated in the usual way by a cam on the needle-bar shaft engaging a forked pitman having a central pin working in an adjusting slide in the machine standard. The carrier is also connected to a link 76 depending from a curved arm 78 on the feed lift rock shaft 36 which is actuated from an eccentric on the needle-bar shaft by a pitman 53, a link 55, and an arm 57 on the shaft 36 ; the pin connecting the pitman and link carries a roller which works in a guide 60. The guide 60 is pivoted to lugs on the frame at 61, near the upper end of its track, with friction means to hold it in set position, and has a hand-lever 65 by which it can be rocked about its pivot ; in the position shown the feed-dog is lowered beneath the surface of the throat-plate and has little vertical movement, while in the forward position of the lever 65 the slide 60 is turned so that a longer movement is imparted to the link 55 and the lower part of the slide is lowered so that the feed-dog rises above the throat-plate.
Patent GB-1528022-A (GB)
Title: Fluid coupling
IPC: F16D33/02
Filed: 1975-04-18
Abstract: 1528022 Fluid couplings H J STEIGER 25 March 1976 [18 April 1975] 16176/75 Headings F2W and F2C  A fluid coupling comprises an annular working chamber within which fluid is circulated by a member provided with vanes 49, 52 (Fig. 4) a second member 54 having at least one vane 69, 70 which obstructs the flow in the chamber to be driven thereby. In the embodiment shown in Figs. 3 and 4 the vanes 49, 52 are provided on an outer housing 40, 46 which rotates with a shaft 43, the driven member 54 driving a shaft 58. The working chamber is sealed radially inwardly by seals 61, 62 and fluid which leaks past these is returned from chambers defined by recesses 48, 67, 51, 68 to the low pressure side of a vane 69, 70 through a check valve 74a or 74b. The driven member may alternatively have a vane 103 (Fig. 5) which has a valve member 109 closed above a predetermined speed by a weight 119 and open at low speed to reduce creep by providing a passage through the vane. In the embodiment shown in Fig. 7 a vane 150 has a slot 153 in which a weight 155 pivots to close the slot above a certain speed, this weight also connecting the driven member to the driving housing by engaging a friction surface in the housing of the driving member so that the coupling acts as a friction clutch if the speed is sufficient. In alternative embodiments the inner member may have a plurality of vanes and the outer housing only one (Figs. 1 and 2, not shown) or the two vaned members may rotate in a fixed housing (Fig. 8, not shown). The coupling shown in Figs. 3 and 4 may have fluid continuously circulated through it, fluid entering through a duct 80 to the supply to the low pressure side of a vane 69, 70 and exiting through ducts 82. This fluid can be from the sump of a prime mover and, due to the provision of fins 50, 53, can be cooled by its passage through the coupling. In each embodiment the member described above as "driven" may be the driving member, with the other member driven.
Patent GB-807332-A (GB)
Title: Improvements in or relating to the tufting of mattresses and the like
IPC: B68G15/00
Filed: 1955-06-06
Abstract: 807,332. Cutting apparatus. WHALEY, F. R. May 10, 1956 [June 6, 1955], No. 16184/55. Class 31 (1). [Also in Group XIV] Apparatus for cutting slices from an I-beam of plastic to form mattress tufting devices has a body 3 with an aperture 4 of equivalent shape to the beam and a pivoted knife 5.
Patent GB-470206-A (GB)
Title: Improvements in or relating to apparatus for delivering money and small articles, in places such as restaurants and shops
IPC: G07D9/02
Filed: 1936-06-10
Abstract: 470,206. Coin trays ; advertising. LAX, H. W. June 10, 1936, No. 16186. [Classes 3 (i) and 116] A device for delivering change or articles in shops &c. comprises a base a supporting on pivots d a tray c having a stepped portion c<3>, c' forming a recess into which a hand may be inserted, palm uppermost, to tilt the tray and receive the change &c. The tray has a peripheral flange c<2> except at the front, and is biassed or spring-loaded to rest normally on a flange a<3> in the base. An advertisement or notice m is located under a transparent or translucent portion of the tray, a strip l being secured to the underside of the tray, to carry a reflector f and lamp e whose contacts g are coupled through a mercury switch to a dry battery h or other electric supply. The sides of the base may display advertisements &c. on illumination of the lamp e. An advertising sheet may be illuminated by the tilting of the tray
Patent GB-560921-A (GB)
Title: Improvements in electric fires
IPC: F24C7/04
Filed: 1942-07-17
Abstract: 560,921. Electric radiators. ENGLISH ELECTRIC CO., Ltd., FRASER, J. A., and HUMM, R. W. July 17, 1942, No. 16214/43. Divided out of 560,900. Drawings to Specification. [Class 39 (iii)] The radiating elements of an electric fire are mounted in front of a panel of heat-resisting glass, e.g. " Armourplate " (Registered Trade Mark) glass in the electric radiator described in Specification 560,900. The panel may be of the kind incorporating heating elements, e.g. narrow vertical strips, as described in Specifications 413,900, [Group II], 455,152 and 461,275, which may be on the back, or sandwiched between two glass panels. The back of the rear panel, or a panel without heating elements, may be mirrored, in place of the reflector in Specification 560,900.
Patent GB-560805-A (GB)
Title: Improvements in electric lighting fittings
IPC: F21S8/00
Filed: 1942-11-17
Abstract: 560,805. Electric lamp Rttings. BRITISH THOMSON-HOUSTON CO., Ltd., and EDINBOROUGH, E. R. Nov. 17, 1942, No. 16232. [Classes 75 (ii), 75 (iii), and 75 (iv)] A trough-shaped reflector fitting for a tubular electric lamp comprises two spaced channelshaped members 1, 2 connected by straps 5 and bridges 11, and two reflector sections 3, 4 having their upper portions 8 shaped to cover the open tops of the members 1, 2 and their edges 9 bent inwardly to fit over the outwardly bent inner edges 10 of the members 1, 2. Some of the straps 5 carry clips 6 for supporting the lamp 7 and the bridges 11 carry suspension hooks 12. The wiring conductors are arranged in the members 1, 2 and a platform may be provided between the members for supporting control gear when electric discharge lamps are employed. The construction facilitates packing for transport.
Patent GB-702253-A (GB)
Title: Improvements in or relating to voice frequency signal receivers
Inventor: HARGREAVES THOMAS FREDERICK ST
IPC: H04Q1/446
Filed: 1952-06-27
Abstract: 702,253. Voice-frequency receivers. STANDARD TELEPHONES & CABLES, Ltd. June 27, 1952, No. 16248/52. Addition to 701,622. Class 40 (4) In a V.F. receiver wherein a guard in the anode circuit of a signal amplifier V2 is ineffective at the signal frequency and its first and third harmonic, and is associated with a +ve standing bias to feed back a negative guard potential to the grid of the amplifier as in the parent Specification, a signal amplifierdetector V2 is fed from a secondary winding d of an input transformer T3 which winding also feeds a limiter circuit. Resistance R10 serves both as a load resistor and a path for the return of -ve bias from the guard circuit. In a modification, Fig. 2 (not shown), the load resistor is connected directly across the secondary of the transformer and is isolated from the limiter circuit which follows by condensers. In this arrangement the guard potential is applied to the grid through the low resistance secondary winding.
Patent GB-879489-A (GB)
Title: Absorber for short radio waves
IPC: H01Q17/00
Filed: 1959-05-12
Abstract: 879,489. Radio wave absorbers. McMILLAN, E. B. May 12, 1959 [June 24, 1958], No. 16267/59. Class 40(7) A radio wave absorber comprises alternate layers of solid dielectric 32, 34 and lossy material 33 backed by a reflecting layer 31, e.g. the wall of a test chamber, and having a dielectric layer at the surface on which the waves impinge, the dielectric layers being of equal electrical thickness. The dielectric constants of the different dielectric layers are preferably equal and in this case the dielectric layers are of equal physical thickness. The dielectric layers may be formed of honeycomb or foamed material such as expanded polystrene or polyurethane and the dielectric constant can be controlled by the deposition of metallic particles within the cells. The lossy layers may comprise thin sheets of paper or cloth impregnated with a semiconductor such as carbon, e.g. "Aquadag" (Registered Trade Mark). An absorber comprising a single lossy layer such as shown in Fig. 3 may be formed by painting a graphite layer on the back of a first sheet of dielectric foam, glueing a second sheet of dielectric foam to the back of the graphite layer and painting one exposed surface of the dielectric sheets with aluminium paint. For an absorber comprising f lossy layers and #+1 dielectric layers it is shown mathematically that the thickness d and dielectric constant # of the dielectric layers and the surface conductivity Y S  of the lossy layers can be selected so that the reflection co-efficient 1r1, Fig. 4A, is zero at #+1 resonance frequencies and that by making the values of the dielectric constants sufficiently small the value of 1r1 between the resonance frequencies may be so reduced as to produce satisfactory absorption over a wide frequency band. When the dielectric layers are of equal thickness and dielectric constant, the surface conductivity Y S  of the lossy layers increases in the direction from the front of the absorber towards the reflecting layer, Fig. 8 (not shown), the overall thickness of the absorber increases with the number of layers but approaches a limit of half the wavelength of the longest wavelength to be absorbed, Fig. 9B (not shown), and the dielectric constant # decreases with the number of layers, Fig. 9A (not shown). In the examples considered it is assumed that the dielectrics are loss free but it is stated that some electrical loss may be included in the dielectric material.
Patent GB-862000-A (GB)
Title: Computer employing electromechanical balance
IPC: G01F1/08
Filed: 1957-05-22
Abstract: 862,000. Electric indicating systems. ROBERTSHAW-FULTON CONTROLS CO. May 22, 1957 [June 1, 1956], No. 16277/57. Class 40 (1). [Also in Group XXXVII] The invention relates to an arrangement for measuring volume flow compensated for temperature and pressure. The fluid flow through pipe 100 (Fig. 2) is measured by a tachogenerator 101, a resistance bulb 104 being connected in series with output terminals 102, 103, the signal from this combination being impressed on coil 108 on beam 109 of unit 110 which is associated with a recorder 112. The signal developed by meter 101 is proportional to the volume flow, and the resistance of bulb resistance 104 is proportional to the temperature, the current through coil 108 is therefore proportional to the ratio of the volume flow to the temperature, feedback elements functioning to rebalance beam 109 and position the recorder 112. A component proportional to pressure is introduced by a pressure transmitter 120 whose terminals 121, 122 are connected in series with terminals 126, 127 of an axial pressure transmitter 125 and this output signal fed through a variable proportion of potentiometer 117 is impressed on coil 130 carried by a beam 131 of unit 132, variations in deflection of beam 131 producing a corresponding variation in current of tube 134 which forms one arm of a bridge including resistors 135, 136, 137, the feedback coil 140 being connected in series with the input terminals 145, 146 across the unbalance diagonal of the bridge. The current flowing through coil 140 (the output current) must balance the input current through coil 130 and the latter is proportional both to the direct current signals of transmitters 121 plus 125 and the current produced by the position of contact 116 on potentiometer 117. Since the position of contact 116 is proportional to current in coil 108, the output current via 145, 146 is proportional to the product of the input current from the transmitters and that from the fluid flow meter (at coil 108). Specification 790,368 is referred to.
Patent GB-1487909-A (GB)
Title: Linear thermoplastic polyesters based on heterocyclic dicarboxylic acids
IPC: C08G63/00
Filed: 1976-04-22
Abstract: 1487909 Heterocyclic polyesters CIBAGEIGY AG 22 April 1976 [23 April 1975 12 Feb 1976] 16289/76 Heading C3R Polyesters are made from, by moles (a) 5-50% (III) where R is optionally-substituted alkylene, cyclohexylene, phenylene, or benzylene, and R<SP>1</SP> and R<SP>2</SP> are H, alkyl, cycloalkyl, or phenyl or R<SP>1</SP> together with R<SP>2</SP> are -(CH 2 ) 4-7 , and Y is OH, OCH 3 , OC 2 H 5 , OC 6 H 5 , Cl, or Br; (b) 0-45% specified aromatic or aliphatic dicarboxylic acids; (c) 50% specified aliphatic, cycloaliphatic, or heterocyclic diols; the ingredients are reacted, in the presence of catalysts, to relative viscosity 1À2-3. The catalysts may promote both transesterification and polycondensation. Melt, solid phase, interface, solvent, or azeotropic polycondensation may be performed, 5-20% wt. of conventional additives may be present.
Patent GB-633549-A (GB)
Title: Improvements in apparatus for sterilizing and subsequently cooling food
IPC: A23L3/10
Filed: 1946-05-29
Abstract: 633,549. Sterilizing and cooling closed food - containers. AKTIESELSKAPET KVAERNER BRUG. May 29, 1946, No: 16292. Convention date, June 23, 1945. [Classes 49 and 81(i)] In apparatus for sterilizing and subsequently cooling closed food-containers comprising an autoclave and a container into which hot sterilizing water is forced by conveying cooling water under pressure to the autoclave upon completion of the sterilizing process, the autoclave and hot water container are arranged co-axially and built together in a unit by connection of their shells around their circumferences, the opposite end walls of the autoclave and hot water container being situated at some distance one from the other so that an intermediate insulation compartment is formed between them. As shown. an intermediate air-insulation compartment 3 is formed between an autoclave 1 and a hot water container 2 by the extension of their shells beyond the end walls 4, 5 respectively. Steam supplied through a pipe 11 passes into pipe 13 and thence to the autoclave 1 for heating purposes, into pipe 15 and thence to the hot water container 2 for heating purposes, and into a pipe 17 and through stop valve 18 and reducing valve 19 into the hot water container 2, in order to maintain the required pressure in the autoclave 1 by means of an intercommunicating pipe 21. The pipe 21 may also serve to convey the hot sterilizing water from the autoclave 1 to the hot water container 2 on completion of the sterilizing process, the hot water being forced over by means of cooling water supplied through a pipe 22. During the last part of the cooling step a stop valve 24 in a pipe 25 is opened and a valve 23 is closed so that cooling water flows only through the autoclave. The autoclave may be emptied through a pipe 26, a valve 27 being closed and a valve 28 being opened.
Patent GB-1140628-A (GB)
Title: Apparatus for transforming rotational rates into fluid signals
IPC: G01C19/12
Filed: 1967-04-10
Abstract: 1,140,628. Fluid amplifiers. BENDIX CORP. April 10, 1967 [May 4, 1966], No. 16305/67. Heading G3H. [Also in Division G1] A fluid amplifier for use as a rotational rate sensor comprises a cup-shaped housing 26 having a central output passage 28 leading to a vacuum chamber 30 with vents 32 connected to a vacuum pump 72 and an external pick-off tube 34 projecting into the chamber 30, and a button 40 located in the housing to provide a vortex chamber 42, the button having an internal pick-off tube 48 and an inlet 52 leading into the chamber 42 through a porous annulus 44, a control inlet being provided by way of an annulus 39 connected to nozzles 36 which direct fluid tangentially into the vortex chamber 42. In use, the vacuum applied to the chamber 30 will cause a flow from the inlet 52 to the output passage 28. An orifice 54 in the inlet 52 ensures a lower pressure in the inlet than in the annulus 39 so that the control flow from the nozzles 36 causes a constant swirl in the chamber 42. A fluid-flow is also developed from the tube 48 to the tube 34 in the chamber 30 by way of a line 50. A valve 56 controls this flow to provide the desired gain and noise characteristics. Rotation of the sensor about its axis of symmetry causes a swirl of fluid in the chamber 42 causing the output pressure in the tube 34 to either increase or decrease according to the direction of rotation. The porous annulus 44 aids in the swirling of the fluid in the chamber 42 on rotation of the sensor. The output of the sensor is fed to another fluid amplifier similar to the sensor but in which no porous annulus is provided, and in which the control vertical flow is obtained from the output of the rotational rate sensor instead of by physical rotation of the sensor. The sensors are described as being used in the sensing of rotation of an aircraft about one of its axes and to provide a correction signal to the aircraft controls, and as such they are used in pairs in which the vertical flow is in opposite directions.