baber/WOPTO huggingface dataset:
Patent GB-566835-A (GB)
Title: Cathode ray beam deflecting circuits
IPC: H03K4/26
Filed: 1943-06-30
Abstract: 566,835. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 30, 1943, No. 10652. Convention date, June 30, 1942. [Class 40 (v)] In a magnetic deflecting system for a cathoderay tube, linear deflection and high efficiency consequent on the use of a large percentage of current from an inverted suppressor tube is obtained by applying to the inverted suppressor tube a potential derived from the deflecting coils through a passive coupling network. The arrangement is such that the driving tube operates without substantial regeneration. Fig. 5 shows a control tube 10 feeding deflecting coils 62 and an inverted suppressor tube 66 arranged to pass current in opposition to that passed by the tube 10. Tubes 10, 66 are preferably beam power tubes. Centreing of this beam is affected by varying the currents in the coils 62 by resistance 64. The tube 66 is connected across the coils 62, resistance 70 being provided, if necessary, to limit the anode volts. The heater winding of the valve 66 is insulated and preferably of low distributed capacity. Control of the tube 66 is effected by varying the screen potential by potentiometer 68. Grid bias is produced by grid current in the elements 74, 76. The controlling voltage is derived from the voltage across the deflecting coils 62 by differentiation in the circuit 78, 80 and 81. Capacity 80 may be comprised wholly by the self capacities 80<1>. A large condenser 73 is provided to maintain the anode voltage of the tube 66 constant. In a modification, Fig. 6 (not shown), a bleeder resistance is provided so that the whole anode voltage may be applied to the tube when the grid bias is controllable. Fig. 7 shows a modification in which the inverted suppressor tube 86 is isolated from the control tube 10 by a transformer 88 which passes the lower frequencies, a condenser 90 being provided for the higher frequencies. Centring in this case is affected by a potentiometer 92. In the cathode circuit of the inverted valve 86 bleeder resistance 110 is provided and the grid is connected through a network comprising a variable condenser 112 in parallel with the interelectrode capacity 114 and the elements 106, 108 to the deflecting coils 62. The screen grid voltage is substantially that across the deflection coil adjusted by a proportion obtained from the potentiometer 68 or by a series resistance. Fig. 8 shows a modification in which the inverted suppressor tube 116 is isolated from the tube 10 and control grid bias is obtained from the source 118 through a choke 122. Diode 130 is arranged to open the screen grid circuit during the retrace period and a condenser 134 forces the cathode of the diode to follow the cathode of tube 116 and so guards against the screen grid emission current, bombarding the control grid in the tube 116 and also prevents the circuit acting as a relaxation oscillator.
Patent GB-1043294-A (GB)
Title: Improvements relating to electrical plug connectors bearing planar contact tracks
Inventor: BOOTH GEOFFREY LISTER
IPC: H01R12/72
Filed: 1964-03-13
Abstract: 1,043,294. Edge connectors for printed circuit boards. PAINTON & CO. Ltd. March 12, 1965 [March 13, 1964], No. 10785/64. Heading H2E. A printed circuit board 2 is formed with, or, as shown, attached to, a plug 1 for engagement in an edge-connector socket 31, the plug having contact tracks 16 on each side which overlie each other but which have narrow extensions 17, Fig. 2 (not shown), which do not overlie each other so that a connecting wire 20 for each contact may be passed through a hole in the insulating base and soldered at 21 to the extension without touching the corresponding contact on the other side. The extensions on one side may be larger than those on the other, Figs. 3 and 4 (not shown). The plug 1 may carry a metal grip 7 through which bolts may pass to secure it to a circuitboard. The socket contacts 36 may be of beryllium copper with stainless steel backing strips 37 formed with retaining detents 42.
Patent GB-944255-A (GB)
Title: Improvements in and relating to office mailing machines
IPC: B43M3/04
Filed: 1961-03-24
Abstract: 944,255. Feeding sheets. H. M. ENGLAND. March 26, 1962 [March 24, 1961], No. 10832/61. Heading B6B. [Also in Division B8] In an office machine for dealing with mail, envelopes are stacked in a hopper 28 with adjustable sides on a table 2, and are separated sequentially through a side slot by a friction roller 4 and gripped by feed rollers 6, 14 which deposit them on a pad 36 with their open flaps facing the front of the machine. When a letter &c. has been inserted in the envelope on the pad 36 by hand, the envelope is pushed between feed rollers 70, 72 and is fed to a delivery position, or a franking machine, by further pairs of feed rollers 8, 16, 10, 18, and 12, 20. The envelope flap is folded upwardly by a curved guide plate 42, is moistened by a device 68, and the envelope is then sealed before delivery. The rollers 4, 6, 70, 8, 10, and 12 are driven by a motor beneath the table 2 and protrude through slots in the table. The separator roller 4 is arranged to be moved upwardly by a manuallyoperable feed-bar each time it is desired to separate an envelope from the hopper 28. One end of each feed roller 16, 18, and 20 is mounted in a spring toggle device 66 for quick release in the event of envelopes jamming. An adjustable fence is arranged at the rear of the table 2 to guide the envelopes.
Patent GB-143376-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: F01D9/04
Filed: 1919-05-01
Abstract: 143,376. British Thomson-Houston Co., (General Electric Co.). May 1, 1919. Casings.-A diaphragm for an elastic-fluid turbine comprises a web portion 10 and a ring portion 11 formed of a number of thin metal plates or laminµ spaced apart by plates 12 to form the fluid passages 13. The laminµ of both web and ring portions have spaced slots 16 stamped therein and are assembled with the slots in staggered relation to receive the straight portions of the plates 12, as shown in Fig. 7. Further laminµ are then placed in position over the curved portions of the plates 12 and the whole welded or soldered together to form the complete diaphragm.
Patent GB-115746-A (GB)
Title: An Improved Coil Clutch with Operating Gear combined therewith.
Inventor: LINDSAY WILLIAM HENRY
IPC: F16D13/08
Filed: 1917-07-28
Abstract: 115,746. Lindsay, W. H. July 28, 1917. Machine details; springs.-Taper coils, used in place of cone clutch-parts, are made by cutting a deep spiral groove in a holow tapered casting and boring or cutting away the inside of the casting up to the root of the groove. A clutch cone c is cast with a spiral groove k and with strengthening- webs l at intervals at the bottom of the groove. The cone is then bored out to cut away the metal at the base of the grooves, and cuts l<2> are made through the webs l, so as to convert the cone to a helical coil.
Patent GB-331858-A (GB)
IPC: G11B5/00
Filed: 1929-04-09
Abstract: 331,858. Stille, C. Oct. 20, 1928, [Convention date]. Addition to 319,679. Duplicatirag.-A magnetized-wire sound-record, shortened by the method described in the parent Specification to correspond with the shortening of an accompanying picture film, is copied on to one or more smooth wires, so that the duplicate shortened records have no thickened parts and can be used with ordinary electromagnetic reproducing apparatus. The duplicating is effected by running the smooth wira or wires past a recording magnet influenced by running the original record past a reproducing magnet such as is described in Specification 319,680.
Patent GB-109419-A (GB)
IPC: F27B3/00
Abstract: 109,419. Gill, H. A., (Vereinigte Huttenwerke Burbach-Eich-Dudelingen Akt.-Ges. [known as Acieries Reunies de Burbach-Eich- Dudelange, Soc. Anon.]). May 7, 1917. Tilting open-hearth furnaces.-In a tilting furnace for smelting metals, a preheating hearth d is arranged at the end of the furnace opposite to the heating burner e. The charge is introduced through the end door, and is gradually worked along the hearth d to the melting hearth c. The preheating hearth may be formed with a slight rise near its inner end.
Patent GB-1234771-A (GB)
Title: Improvements relating to bridges
Inventor: HAMILTON ARCHIBALD MILNE
IPC: E01D6/00
Filed: 1967-03-08
Abstract: 1,234,771. Bridges. A. M. HAMILTON. 10 June, 1968 [8 March, 1967], No. 10956/67. Heading E1G. In a bridge having a concrete deck supported by triangulated side trusses each composed of chords 1 and braces 2, the concrete deck members 8 are rigidly connected by vertical concrete or metal shear webs 11 to underlying cross ties 9 carried by flanged gusset plates 3 of the side trusses 1-2, whereby the deck member 8 itself acts as the compression member of a composite cross beam structure 8-11-9. The web 11 shown is interrupted by longitudinal stringers 10. The deck members 8 may be precast or cast in situ, and may lie adjacent the upper or lower chords 1. The concrete shear webs 11 shown incorporate strirrups 12 bolted to the ties 9. Horizontal transverse and diagonal braces (not shown) may connect the two side trusses above or below the bridge deck, and each truss may be duplicated as indicated in Fig. 2. The deck 8 may have negatively cambered surfaces to bias each lane of traffic towards the bridge centre line. (For Figures see next page)
Patent GB-873879-A (GB)
Title: Process for improving the binding power of oils and other substances used as bindingagents in foundry work
IPC: B22C1/24
Filed: 1959-04-01
Abstract: Lead dioxide is used as a setting accelerator in conjunction with drying oil binders in the production of sand and zircon cores and moulds for foundry purposes, the lead dioxide comprising 0.3-10% by weight of the binder.  The lead dioxide is suitably used in admixture with a dry inert material such as powdered silica or zirconium sand in amounts of 70-90% of inert material to 30-10% dioxide.  The only drying oil binder specified is China wood oil previously treated with cobalt and lead naphthenates. Specification 801,931 is referred to.
Patent GB-808602-A (GB)
Title: Spring frame for the upholstery of seats and/or back rests, more particularly for the seats in motor vehicles
IPC: A47C7/34
Filed: 1957-04-05
Abstract: 808,602. Spring upholstery. IGMA, A. G. April 5, 1957 [April 26, 1956], No. 11136/57. Class 52(4) A spring frame for the upholstery of the seat or backrest of a motor vehicle seat comprising spring bands 3 stretched across the frame has the end sections angled outwardly upwards and neighbouring bands connected to form a narrow closed rectangle, the rectangles being attached to bent bracket members 4, fixed to the rigid frame members 2, and to an edge line 5. In a modification, Fig. 2, rectangles 7 are connected to an encircling wire frame 9 of flat spring strip and are suspended from the frame members 2<SP>1</SP> by arcuate bracket members secured by sheet metal clips 10. In another modification Fig. 3 the frame members 2<SP>11</SP> carry flat upright supports 11 and their inner edges carry angle pieces 12 which support the centre sections 14, the upper extremities of supports 11 carrying the encircling wire 16. In a further modification Fig. 4 the supporting members 17 of spring steel strip bear on top of the lengths 19 of strip with which they are co-directional and are secured thereto by metal clips 20.
Patent GB-1412817-A (GB)
Title: Overrunning clutch
IPC: F16D41/20
Filed: 1973-03-30
Abstract: 1412817 Ratchet clutches NATIONALSTANDARD CO 30 March 1973 11145/75 Divided out of 1412816 Heading F2C The subject matter of this Specification is identical with part of that described in Specification 1,412,816, but the claims are directed to the anchor formed on the end of the band by radially outwardly bent tongues.
Patent GB-666512-A (GB)
Title: Improvements in or relating to processes for preparing polysilicon oxyhalides
IPC: C01B33/08
Filed: 1949-04-28
Abstract: Polymeric silicon oxyhalides are prepared by cracking silicon halides having alkoxy, alkenoxy or aryloxy substituents at a temperature of 500-1000 DEG C.  Specified substituents are those containing the radicals methyl, ethyl, n-propyl, isopropyl, n-butyl, iso-butyl, secondary butyl, tertiary butyl, n-amyl, n-hexyl, cyclohexyl, n-octyl, capryl, n-decyl, lauryl, myristyl, cetyl, stearyl, and their corresponding unsaturated radicals, and phenyl and naphthyl.  The halides may be chlorides, fluorides, bromides or iodides.
Patent GB-922281-A (GB)
Title: Fluid actuated valve means for producing blasts of compressed pneumatic fluid
Inventor: HALLETT HENRY ALBERT
IPC: F16K31/365
Filed: 1958-04-10
Abstract: 922,281. Valves. R. W. YOUNG. April 9, 1959 [April 10, 1958], No. 11341/58. Class 135. Gas pulses are obtained by pressurizing in sequence a number of outlets 38 of a pulsator that is put into operation upon opening an adjustable needle valve 57 connected to a gas supply line 55; the latter is also connected to ports 23, 31. Gas in port 23 flows through a fixed or adjustable restrictor 24 into a chamber 21 and from port 31 into a chamber 26 to act on a diaphragm 27 connected to a diaphragm 22 in the chamber 21 by a member 28, and due to the difference in areas between these diaphragms, the latter and member 25 are lowered to close off a port 30 between the port 31 and chamber 26, concomitantly gas from the valve 57 passes into a chamber 9 until the pressure therein is sufficient to cause a spring-loaded diaphragm 6 to close a port 4 and shut-off the connection between a chamber 15 beneath a diaphragm 16 and a vent opening 3 via a passage 5 and port 4 whereby pressure builds up in chamber 15, since it is open to the chamber 21 through a restriction 25 until it lifts the diaphragm 16 and opens a port 17 so interconnecting chambers 15, 21 and producing a pressure drop in the latter. The pressure differential across diaphragms 22, 27 is thereby altered and these diaphragms are elevated to open port 30 and connect the port 31 to the one outlet 38 selected by a rotary valve 32 and via a passage 47 and a flap non-return valve 48 to a chamber 45, causing displacement of a diaphragm 46 and hence of a pawl 40 to move valve 32 over the next outlet 38. Continued lifting of diaphragm 16 also unseats a valve 11 and vents chamber 9 via a port 14, the resulting pressure drop in the chamber enable the diaphragm 6 to open port 4 and so exhaust the chamber 15; the diaphragm 16 closes port 17 and gas flowing through the restrictor 24 moves the diaphragms 22, 27 to close port 30 and the cycle of operations is repeated. When the port 30 is closed, gas in chamber 45 bleeds to atmosphere through a restrictor 52 to produce a downward movement of the diaphragm 46 to cause motion of the rotary valve 32 into a position to connect the next gas pulse to another outlet 38. Each outlet 38 leads to one or more blast valves 60 comprising three diaphragms 65-67 forming chambers 61-64; chamber 61 is connected to line 55 and has an outlet 70 normally sealed by a closure member 73, the latter having all three diaphragms attached thereto. When a pulse is delivered through the outlet 38 it acts differentially on diaphragms 65, 66 and overcomes the differential force produced by the supply pressure in chambers 61, 64 to unseat member 73 and connect an outlet 70 with the line 55. When the pulse ceases the pressure in chamber 62 bleeds away through an adjustable port 74. Chamber 63 is open to atmosphere by way of a vent 77. The supply and pulse gases and pressures may be different.
Patent GB-892830-A (GB)
Title: Improvements in and relating to insulating vacuum-tight seals through metal or malleable alloy and in particular copper
IPC: H01J5/40
Filed: 1959-04-03
Abstract: 892,830. Vitreous-metal seals. DOLOY, G. A. April 3, 1959 [Dec. 24, 1958], No. 11347/59. Class 36. A metallic conductor 11 is sealed through the metal wall 13 of a chamber by means of an annular malleable portion 8 through which the conductor passes and into which it is sealed by fused vitreous material 12, a metal collar 9 being provided around the outside of the annular portion to compensate the thermally induced stresses set up in the vitreous material. The collar 9 has a temperature coefficient higher than that of the vitreous material and a tensile strength higher than that of the malleable metal wall portion so that it exerts a pressure on the annular wall surface when the seal cools. The metal of the wall may be copper and the ring may be e.g. iron, soft steel, nickel, cupro-nickel, ferrochrome or ferronickel. The conductor may be a rod or tube. The ring is attached without welding, e.g. by flanging over the annular wall as at 10, and may be either within or without the chamber. Multiple seals may be formed with a single ring around the entire seal, or each conductor may be individually sealed either with a separate ring around each seal or with an integrally-formed multi-ring unit to effectively provide a ring around each seal.
Patent GB-117853-A (GB)
Title: An Improved Automatic Regulator for Electric Machines.
Inventor: GEHRIG JOST
IPC: G05F1/00
Filed: 1917-08-08
Abstract: 117,853. Gehrig, J. Aug. 8, 1917. Regulation, automatic apparatus for. - Relates to means for automatically regulating the voltage, current, or power of a dynamo-electric machine by alternately short - circuiting and reinserting a resistance in the excitation or exciter field circuit by means of vibrating contacts under the control of electromagnets energized, one by the excitation circuit, and the other by the circuit to be controlled. According to the invention, a liquid transmitting device is interposed between the cores of these magnets. The core r of an electro-magnet, the winding s of which is connected to the leads of the machine g, is connected to a piston of non- magnetic material working in liquid contained in the cylinder o; the cylinder is of magnetic material and is surrounded by a winding p connected in the excitation circuit of the machine. Downward movement of the core r closes the contacts k, l; the winding of an electro-magnetic switch z is thereby short-circuited and the contacts a, d bridge to short-circuit the resistance w in the field circuit of the exciter b. The excitation voltage now rises, the cylinder o is moved upwards and, acting through the liquid, forces up the core, closes the contacts k, l and re-inserts the resistance. Upon the consequent fall in the excitation voltage the cylinder moves down and the contacts are again closed to short-circuit the resistance. In a modification, the core r and the piston p are connected to opposite ends of the lever m, and the contacts are at the centre of the lever. In another modification, two levers are employed, one connected to the core and the other to the piston, and each lever carries a contact.
Patent GB-628891-A (GB)
Title: Rotary crushing mills
IPC: B02C15/08
Filed: 1947-04-29
Abstract: 628,891. Mixing machines of the rotary mill type. DEHN, S. G. (Beardsley & Piper Co.). April 29, 1947, No. 11459. [Classes 59 and 86] The ploughs of a mill are rotated by a vertical shaft and throw the material to be mixed into the path of freely rotatable compressing wheels mounted on a crosshead on the shaft and adjustable, to and from the co-acting sides of the container, in a split bearing. The container consists of a bottom plate 16, Fig. 2, a lower cylindrical side member 37 and an upper side member 38 against which the wheels 18 co-act. A sleeve 28 which supports the driving shaft 64 passes up through the centre of the bottom plate 16, and the driving shaft carries a cross-head 17. A block 84 is mounted on the cross-head 17 and has at each end a single split bearing 86. Mounted in each bearing is a bearing member 85, Fig. 4, in which an axle 72 is eccentrically fixed which carries freely the wheel 18 of hardened steel. Rotation of the bearing member 85 adjusts the position of the wheel 18 with respect to the side member 38. Spaced between the wheels 18 and passing over the bottom and side members of the container are ploughs 21, Fig. 5, which are shaped to throw material upwards into the path of the wheels so that the material is compressed. Scrapers 19 mounted on the cross-head 17 and adjustable towards the wheels 18 scrape adhering material from them, and scrapers 20 remove adhering material from the side member 38. A scraper 22, mounted below the cross-head 17, scrapes the protecting sleeve of the driving shaft, and deflects material into the path of the ploughs 21. The material in the container may be heated or cooled by circulating suitable fluids in an annular chamber 46, Fig. 2, formed by the outer surface of the sidemember 38 and a U-shaped member 45 secured to it. Secured above the wheels 18 on an extension of the shaft 64 is a hollow cup-shaped member 119. Outlet pipes 120 secured to the member 119 deliver resinous material &c. over the ploughs 21 and between the wheels 18 when dropped into the member 119 through the funnel 121 mounted in the top cover 53 of the container. A chute (not shown) in the top cover 53 delivers filler material &c. to the container. Water vapour &c. is removed by a fan connected to the container by pipe 62. A door 50 mounted in the side wall ,member 37 is toggle-operated and when opened allows the ploughs 21 to sweep out the processed materials.
Patent GB-1293727-A (GB)
Title: Dental prophylaxis implement
Inventor: MUHLER JOSEPH CHARLES
IPC: A61Q11/00
Filed: 1971-04-27
Abstract: 1293727 Prophylactic cup INDIANA UNIVERSITY FOUNDATION 27 April 1971 11578/71 Heading A5R [Also in Division B3] A dental prophylactic cup 10, which may be mounted in a conventional angled handpiece (12) (Fig. 1, not shown) comprises a cylindrical body 14 of resilient material which provides a paste-holding cavity 18 and a screw 15 embedded in the cup by means of a head (16) (Fig. 3, not shown) the resilient material incorporating up to 15% by weight of an anticariogenic agent, and/or up to 50% by weight of a dental cleaning and polishing agent. A plurality of radial fins 20 are moulded integrally with the side walls 19 of cavity 18, the fins serving as auxiliary means of prophylactic paste application. The side walls may be tapered and of such a thickness that the downward force exerted on the body 14 during treatment causes the rim portion 22 to splay outwardly and thus the radial fins contact the tooth surface. The body of the cup may be made of natural rubber, synthetic rubber, or certain plastics, e.g. nylon and polyethylene.
Patent GB-1522869-A (GB)
Title: Substituted 4- halomethyl 2- pyrrolidinones and the use thereof as herbicides
IPC: C07D207/26
Filed: 1976-03-23
Abstract: The herbicidal preparation contains, as active component, a compound of the formula I. The substituents have the meaning given in the patent claim. The abovementioned compounds are prepared by cyclization of corresponding N-alkenylhalocyanamides in the presence of a catalytic amount of iron(II) ions. <IMAGE>
Patent GB-473633-A (GB)
Title: Improvements in and relating to hoods for electric hair dryers
IPC: A45D4/18
Filed: 1936-04-24
Abstract: 473,633. Electric heating. PHELAN. R. April 24, 1936, No. 11677. [Class 39 (iii)] A hood-type electric hair drier 1 is adapted for use in hair waving by connection of electrically-heated hair-waving elements 7 to sockets in a ring 6, the sockets being connected to the supply flex 10 through a switch 5 providing alternative connection to the hood heating coil. The switch 5 is mounted in the joint of a hoodcarrying arm 2 which, for drying, is swung over to support the hood mouth downwards. An indicator lamp 11 is included in the circuit of the elements 7 and additional rings 8, 9 provided to support their connecting flexes.