baber/WOPTO huggingface dataset:
Patent GB-567377-A (GB)
Title: Improved circuit arrangement for operating electric discharge lamps
IPC: H05B41/18
Filed: 1943-04-05
Abstract: 567,377. Supply systems for discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd., and GRAPES, G. T. April 5, 1943, No. 5394. [Class 38 (iv)] A discharge lamp or several such lamps in series requiring an operating voltage greater than the voltage of the supply, is connected across the inductance of a series resonant circuit that increases the voltage during operation of the lamp. The resonant circuit comprises a condenser C and an inductance L1 proportioned to provide a resonance ratio of about .76 : 1 during operation of the lamps, having regard to the effect of the current in a ballast inductance L2 in series with the lamps. In the starting condition when the lamps are short-circuited, the chosen magnitudes of the components furnish a resonance ratio of about .66 : 1 and the ratio on open circuit is approximately' the same as in the running condition. The circuit allows of a change in tho number of lamps used in series without adjustment of the circuit. Specification 527,497 is referred to. According to the Provisional Specification, the condenser C and the inductance L1 may be transposed.
Patent GB-934018-A (GB)
Title: Watch glass
IPC: G04B39/00
Filed: 1962-02-13
Abstract: 934,018. Clocks and watches. ENICAR S.A. Feb. 13, 1962 [Feb. 16, 1961], No. 5413/62. Class 139. A watch glass 2 has a thickened outer peripheral rim which is divided by a groove 3 sunk from the inner or concave side of the glass, the radially inner surface of the groove being inclined and faceted as at 7, 8 so that rays of light entering the glass are reflected. The radially outer part 2a of the rim engages a bezel 1 and is provided with a reinforcing ring 5. In a modification, this reinforcing ring is omitted and the glass has a bevelled edge engaging a correspondingly shaped recess in the bezel.
Patent GB-832620-A (GB)
Title: Improvements in or relating to devices for moving vehicles
Inventor: BELLINGER RONALD
IPC: B61J3/12
Filed: 1956-02-22
Abstract: 832,620. Bowden and like mechanism. STRACHAN & HENSHAW Ltd. April 15, 1957 [Feb. 22, 1956], No. 5518/56. Class 80 (3). [Also in Group XXX] A device of the rack-and-pinion type for moving a vehicle such as a wagon 24 comprises a chain-like member which moves in a guide 18, part of which describes a tortuous path beneath the upper run after passing round a driven pinion 16. The guide comprises spaced members 19 having tracks 20, 21 for rollers 14 carried by the pivots of members 12 forming the rack. The end member 12 is attached by a bracket 30 to a vehicle 31 which has pivoted arms 35 carrying rollers which are projected to contact a wagon wheel 36 when an arm 37 strikes a stop. The vehicle has rollers 33 running on the upper surfaces 32 of the guide and a roller 39 on a vertical axis running between surfaces 40. A traverser 17 may support one part of the guide which is aligned with a selected one of a number of guide parts.
Patent GB-673140-A (GB)
Title: Control unit for pin hole detectors
IPC: B23Q7/12
Filed: 1950-03-06
Abstract: 673,140. Detecting pin-holes photo-electrically. CARNEGIE-ILLINOIS STEEL CORPORATION. March 6, 1950 [Dec. 16, 1949], No. 5559/50. Class 40 (iii). The momentary voltage output pulses of a photo-cell detecting pin-holes in a moving sheet are lengthened sufficiently to operate a classifying mechanism. As shown, light from a source 22 passes through pin-holes in a strip S so causing a photo-cell 24 to generate a voltage output pulse which is amplified at 26 and applied to an impedance matching valve 38. The pulse developed across the cathode resistor 52 is again amplified at valve 40 and applied to the grid of valve 42 of a pair of valves 42, 44 with a common cathode resistor. Valve 44 is normally biased to cut off while valve 42 conducts. The negative pulse applied to the grid of tube 42 reduces the drop across the common cathode resistor until valve 44 unblocks, the negative pulse generated at its anode then being passed via a condenser to block valve 42. The positive pulse generated at the anode of tube 42 triggers a pair of gasfilled valves 84, 86, one of which marks the sheet by actuating a solenoid 30 and the other of which energizes a solenoid in a timer 34 which operates a deflector 12 when the defective sheet reaches it. This timer may be as described in U.S.A. Specification 2,217,342. Valve 42 remains cut off until valve 44 saturates when the charge on the condenser leaks away through resistors 72 and 64. In modified systems amplifying valve 40 and matching valve 38 may be omitted and amplifier 26 feeds directly to the grid of tube 44. Specification 662,612 is referred to.
Patent GB-1491947-A (GB)
Title: Garments
IPC: A41D27/28
Filed: 1975-11-27
Abstract: 1491947 Garments R B HARDY 27 Nov 1975 [7 Feb 1975] 5585/75 Heading A3V A garment has a triangular vent 12 in the armpit region. The triangle may be equilateral with one side on the body seam and the apex on the arm seam and the opening may be closed by a mesh.
Patent GB-399192-A (GB)
Title: Television reception arrangement with braun tube
IPC: H01J29/46
Filed: 1932-02-25
Abstract: 399,192. Television cathode-ray tubes. ARDENNE, M. VON., 19, Jungfernstieg, Lichterfelde-Ost, Berlin. Feb. 25, 1932, No. 5586. Convention date, March 6, 1931. Addition to 396,051. [Classes 39 (i) and 40 (iii).] In the parent Specification, the cathode-ray beam a is concentrated, as by the Wehnelt cylinder 2, controlled in its intensity, by the Wehnelt cylinder or by a deflecting plate 3, and concentrated again by an electrode 5, so that the beam is constant in direction and position before being scanned over the screen. According to the present Specification, the plate 3, which deflects more or less of the beam through the apertured anode 4, is positioned at the point where the beam is most concentrated. The Wehnelt cylinder may be replaced by, 'or used in conjunction with, a second apertured electrode, Fig. 2 (not shown).
Patent GB-495162-A (GB)
Title: Improvements in and relating to alternating current signalling systems
IPC: H04Q1/446
Filed: 1938-02-22
Abstract: 495,162. Exchange systems; valve relays. RENDALL, A. R. A. Feb. 22, 1938, No. 5632. [Class 40 (iv)] [Also in Group XL] An alternating-current signal receiver which discriminates against speech or the like containing the signal frequency comprises a valve the bias of which is controlled in opposite senses by potentials derived by rectification from circuits effectively in series in the output and having maximum and minimum impedance respectively at the signal frequency. The valve is normally biassed to its lower bend by a potential divider 6, 7 across the heater 2 and output signal frequency is applied over tuned transformer 14 to rectifier 21 which sets up a positive biassing charge across condenser 9 in the grid circuit. Frequencies other than the signal frequency are applied over transformer 17, having a primary circuit with a minimum impedance to signal frequency, to rectifier 25 which sets up a negative biassing charge across condenser 8. Relay 18 in the anode circuit pulls up on increase of anode current and operates 29 which completes the signal circuit. Operation of the receiver by transient currents of signal frequency is prevented by resistance 22 in the charging circuit of condenser 9, and by a condenserresistance shunt on relay 29 to make it sluggish. The output of the valve may be amplified before application to the rectifiers and the output of the rectifiers may be amplified.
Patent GB-194123-A (GB)
Title: Improvements in mechanical devices for amusement and recreation purposes
IPC: A63G31/00
Filed: 1922-02-25
Abstract: 194,123. Fletcher, J. A. Feb. 25, 1922. Exercising apparatus.-In mechanical camels &c. having a saddle for the support of a passenger and a rod passing through a ball-and-socket joint to actuate the saddle, means are provided to raise and lower the rod in addition to imparting a rotary movement to the end of it. The saddle a is supported by a rod b passing through a ball-andsocket joint c, d, the lower end of the rod b being pivotallv connected to the crank-arm f, which is adjustably held in the eye-piece g by the locking pin q. The eye-piece. g, and with it the rod b, is raised and lowered by the screw and nut device k, m which is operated by the chain and sprocket gearing s, t from the wheel r. The crank-arm f is rotated by the motor i through worm gearing j, and the motor is controlled by the device u. Steadying handles v are provided for the passenger.
Patent GB-1022643-A (GB)
Title: Benzodiazepine compounds
IPC: C07D333/22
Filed: 1962-08-28
Abstract: The invention comprises compounds of the general formula <FORM:1022643/C2/1> (wherein X and Y are the same or different and each represents a hydrogen, chlorine or bromine atom or a nitro, trifluoromethyl or methyl-sulphonyl group, R represents a hydrogen atom or a hydrocarbon group and Ar represents a monocyclic aromatic group) and acid addition salts thereof, and their preparation by (a) reacting an appropriate 5-aryl-1,3-dihydro-2H - 1,4 - benzodiazepin - 2 - one - 4 - oxide with a carboxylic acid halide, or (b) in the case of 3-chloro compounds only-reacting an appropriate 3-hydroxy-5-aryl-1,3-dihydro-2H - 1,4 - benzodiazepin - 2 - one with thionyl chloride, the product in each case being isolated as the free base or an acid addition salt.
Patent GB-664452-A (GB)
Title: Improved guard for buffing, polishing and like machines
IPC: B24B55/06
Filed: 1949-03-02
Abstract: 664,452. Machinery guards. JONES, S. J. March 1, 1950 [March 2, 1949], No. 5757/49. Class 80 (iv). A guard for the spindle of a buffing, polishing or like machine comprises a cover plate 2 attachable to a fixed part of the machine to enclose the spindle bearing and having a boss 3 pivotally carrying upper and lower guard members 12, 18 enclosing the spindle. The bore of the boss 3 is provided with an annular recess (not shown) to receive semi-solid lubricant. The upper guard member 12 is of U-section, one end being forked and pivoted by pins 16 to recessed vertical faces 8 of the boss 3. The recessing of the faces 8 provides abutments 11 (Fig. 2) which are engaged by the vertical side walls 13 of the member 12 so that the said member is horizontally supported thereby. The lower guard member 18 is in the form of a plate with upturned edges 19 and has a forked end hinged at 20 to the boss 3. The limbs 22 of the fork are engaged by the lower corners of the member 12 so that the lower member 18 is horizontally supported by the upper member 12, and on raising the upper member (in order, for example, to stop the spindle after the drive has been disconnected) the lower member drops. By the same means lowering of the upper member raises the lower member to the closed position. A lug 24 secured to the boss 3 may be provided to limit the fall of the lower member. A resilient slidable extension 25 of U-section is sprung into or around the guard member 12.
Patent GB-647083-A (GB)
Title: Improvements in or relating to a carry-type earth-moving scraper
IPC: E02F3/64
Filed: 1948-02-26
Abstract: 647,083. Bowl-type scraper. RUSTONBUCYRUS, Ltd. Feb. 26, 1948, No. 5768. Convention date, March 28, 1947. [Class 68 (i)] In a bowl-type earth scraper of the type described in Specification 562,181, in addition to the normal turning moment acting on the bowl due to the tension of the usual control cable, an additional turning moment is exerted on the bowl during the initial stages of its travel to and from the carrying and dumping positions. In one embodiment this additional turning moment is supplied by a cable 40 that regulates the depth of cut of the scraper blade 26 since, after passing over sheaves 42, 43, it passes under a sheave 51, mounted on the bowl 27, to sheaves 44, 47 to be dead-ended on frame 22. Since the rope 40 is always under tension, a turning moment of magnitude F.A. acts on the bowl, the moment diminishing in magnitude to eventually reverse and increase in magnitude as the bowl moves from the carryng to the dumping position. Variations in the magnitude of the initial turning moment is determined by the position of the various guide pulleys. In a second embodiment, the tension rope passes from one fixed point on the scraper chassis, beneath the pulley 51 to a second fixed point on the chassis, the tensioning means being an adjustable spring.
Patent GB-159814-A (GB)
Title: Improved winch
IPC: B66D1/72
Filed: 1921-02-21
Abstract: 159,814. Larmignat, R. March 4, 1920, [Convention date]. Winches.-A hand winch, comprising a chainwheel operated by worm-gear from a crank-handle a and raising the load on a loose chain r, is fitted with means for preventing the chain from disengaging from the chain wheel during hoisting. A pulley g carried by a pivoted lever working over a setting-and-retaining device j, presses the chain into engagement with the wheel. The apparatus may be fitted with a hook m for anchoring it.
Patent GB-765414-A (GB)
Title: Spring group and damping mechanism
IPC: B61F5/12
Filed: 1955-02-28
Abstract: 765,414. Railway vehicle undercarriages; frictional vibration-dampers. BUCKEYE STEEL CASTINGS CO. Feb. 28, 1955 [March 4, 1954], No. 5849/55. Classes 103(6) and 108(3). In a spring group and damping mechanism for a railway car vertically disposed loadsupporting coil springs are provided between a first member and a second' member and a damping mechanism is arranged between the spring which is characterised by a generally vertical friction surface on the first member, a horizontally extending plate carried by the second member having an inclined surface thereon converging towards the vertical surface, a wedge having a generally vertical face engaging the vertical surface, an inclined face on the wedge engaging the inclined surface, a spring seat within the wedge facing the second member at the end of the wedge remote from the second member, and a wedge actuating spring acting against the spring seat. As shown in Figs. 1 and 2, the mechanism comprises a top member A and a bottom member B with load-supporting springs 29, 30 interposed. The bottom member has two upwardly-extending walls 38 between which is a V-shaped structure with inclined plates one of which 41 is shown. The undersurface of each plate is slightly convex and is adapted to be engaged by an inclined plate 73 of a wedge W which has also a vertical plate 72 for engaging the surface of a vertical flange 59 on the top member A. The wedge at the upper end has a spring seat for a spring S the other end of which bears on a spring seat 47 in the bottom member B. Each spring seat surrounds a hollow boss through which a bolt may be applied for the purpose of holding the wedge in a retracted position before assembly of the mechanism. During assembly the load supporting springs are partly compressed by moving the top and bottom members towards each other until slots in the top member and slots in the walls 38 of the bottom member are in registration. A bar is then inserted endwise through the aligned slots. Compression of the wedge-actuating springs S is thereafter released by removal of the bolts. When the mechanism has been applied to the truck of a railway car the additional compression on the springs moves the top member A downwardly so that the bar can be removed. In a modification, Fig. 16, the wedge 136 has the vertical plate 137 on the inside and the inclined plate 138 on the outside, the top and bottom members of the mechanism being shaped accordingly.
Patent GB-151293-A (GB)
Title: Improvements in electric accumulators
IPC: H01M2/38
Filed: 1918-04-05
Abstract: 151,293. Marconi, G. April 5, 1917, [Convention date.]. Electrolytes; electrolytes, circulating; electrodes; arrangement.-A storage battery consists of carbon and zinc in a solution of zinc chloride together with the chloride of an alkali metal or metal of an alkaline earth such as calcium chloride or sodium chloride, the solution being kept under a pressure of about twenty atmospheres. In an example, the electrolyte consists of a solution of 500-550 grms. of calcium chloride and 400 grms. of zinc chloride dissolved in 600 grms. of water. In each cell a number of carbon elements are employed, each consisting of a carbon rod e having a central metal core f and surrounded by granular porous carbon g contained in a porous cylinder c. The carbon rods contain quartz or an insoluble silicate or other substance to render them impermeable. The lower ends of the cylinders c are embedded in sealing composition k and are closed by insulating plugs h through which the carbons or the cores f pass to make connexion with a disk i of wire gauze connected by solder j to the lower insulated metal cover b of the casing. Each cylinder c is surrounded with zinc-covered copper or iron gauze d, the whole of the cylinders being bound together by a similar covering of gauze which makes contact with the zinc-covered interior of the steel container a. The upper ends of the cylinders c are covered with zinc-coated carbon grains m or with zinc-coated wire gauge. The electrolyte n is maintained under pressure by compressed air or hydrogen, and circulation is induced by a heating coil y which may be connected to the terminals of the battery. A safetyvalve q is provided.
Patent GB-1077901-A (GB)
Title: Induction furnaces
IPC: F27D1/00
Filed: 1966-02-10
Abstract: 1,077,901. Induction furnaces. HARBISONWALKER REFRACTORIES CO. Feb. 10, 1966 [March 24, 1965], No. 5869/66. Heading F4B. An induction furnace comprises a metal shell 10 formed with an upper flange 16 incorporating a spout 20, a primary coil 80, an outer layer 30 of brick laid in concentric rings and an inner layer 40 of similar brick stood on edge so that joints are staggered, the brick being laid in a mortar compatible therewith. The base of the furnace comprises three brick courses 50, 51, 52 laid on edge with each successive course laid at an angle 45 degrees relative to the previous course, Fig. 3 (not shown). The brick may be fabricated from chrome ore, olivine, forsterite, zircon, zirconia, or silicon carbide, or may be fused shapes of alumina, magnesia, alumina-zircon, or alumina-zirconia. Useful compositions for the brick are disclosed in Specifications 960,384, 982,505 and 1,003,501 (Division C1), and for a mortar to be used with high alumina brick in Specification 983,667 (Division C1). Mortar for use with basic brick may be silicate bonded periclase or chrome ore.
Patent GB-657609-A (GB)
Title: Means of controlling aircraft in flight
IPC: B64C13/00
Filed: 1949-03-04
Abstract: 657,609. Aircraft control surfaces. CHAMBERLIN J. A., and ROE CANADA, Ltd., A. V. March 4, 1949, No. 5914. [Class 4] A flight control surface comprises a fixed plane surface, a plurality of flaps hinged serially to one another, the front flap of the series being hinged to the fixed surface, means for controlling the flaps so that deflection thereof from the neutral position takes place progressively from the rearmost flap forwardly, including means for deflecting one flap and further means for deflecting the flap immediately forward thereof, the forward flap being actuated only when the rearward one is deflected beyond a predetermined angle, the operating mechanism including a member whose movement is proportional to that of the rear flap. As shown, a rudder comprises two flaps 11, 12, of which the rearmost one 12 is actuated by the pilot through a linkage 18, 20, 19, while the forward one is moved by electrically-operated jacks 14. Attached to the flap 12 is an arm 30 moving over contacts 33, 34 and potentiometers 31, 32 controlling the jacks 14. The flap 12 may be moved through an angle A, Fig. 3, on either side of the neutral position by the pilot, but if this angular movement is exceeded the arm 30 engages one or other of the contacts 33, 34 to operate the jacks 14 and move the flap 11. During movement of the latter, the angle between it and the flap 12 remains substantially constant. The flap 11 carries an arm 35 moving over contacts 36, 37. The arrangement shown may be applied to an elevator, and the rear flap 12, instead of being operated manually, may be controlled by an automatic pilot. Also, power operation of the flaps may be effected hydraulically instead of electrically. Specification 574,151 and U.S.A. Specification 2,277,378 are referred to.
Patent GB-600573-A (GB)
Title: Improvements in or relating to garment forms, and method of making the same
IPC: D06F59/06
Filed: 1945-03-09
Abstract: 600,573. Finishing fabrics. STEVENS, A. H. (Paramount Textile Machinery Co.). March 9, 1945, No. 5926. [Class 42(i)] A garment form, particularly for use in boarding nylon hosiery, consists of a hollow structure having an inner flexible rib which is removable and contacts the inner surface of the shell over substantially the whole length of the rib. The rib may comprise stranded metallic cable, flexible tubing or a helical spring. The form consists of two halves 11 and 12, cut to the desired outline and pressed to half-oval section and then united as by welding at edges 13 and 14, a reinforcing rib 31 being inserted between the halves. A groove 15 providing seating for the seam may be rolled in the form from the toe to the lower extremity, and length markers 16 may also be impressed. A base member 21 having mounting lugs 22 and holes 24 for attachment to the treatment apparatus is welded to the lower end. After straightening the rib may be withdrawn, its outer end being soldered, brazed or welded together (in the case of a metallic cable) to facilitate gripping. To provide location for the rib, L- shaped lugs may be welded to the members 11 and 12, particularly if the cable has to turn the corner into the foot.
Patent GB-946694-A (GB)
Title: Method and apparatus for doffing and drafting textile fibers
IPC: D01G15/46
Filed: 1961-02-17
Abstract: 946,694. Carding engines; mixing fibres. CHICOPEE MANUFACTURING CORPORATION. Feb. 17, 1961 [Feb. 19, 1960], No. 6037/61. Heading D1F and D1N. A fibrous web is doffed from a rotatable surface and simultaneously drafted by transfer from a first to a second surface rotating at a greater linear speed, the fibres being pressed on to the second surface close to the zone of transfer to prevent their return to the first surface. In a form of apparatus employing card fillet, a stripper roller 20 removes a fibre web from a doffer 12 and a roller 24 is arranged to press against the stripper roller 20 as close as possible to the periphery of the doffer 12. From the stripper roller 20, the fibrous web is transferred on to a conveyer belt 26 and then to a further conveyer belt 32. The speed of the belt 26 may be such as to provide conditions of draft or compaction. The ratio of the linear speeds of the roller 20 and doffer 12 may lie between 1.25:1 and 20:1 and the clearance between these rollers is from 0.005 inch to 0.15 inch. Metallic strip and clothing may be used on the rollers and in an embodiment described using such clothing the fibre web is transferred from the stripper roll by a smooth surfaced roller. Webs from several carding machines may be laid on each other and fibres shorter than customary textile lengths, say from # inch down to 1/16 inch or less may be added to the web. Examples of such short fibres are papermaking fibres such as woodpulp and wood fibres, cotton linters, cotton hull shavings, and mineral fibres, such as asbestos, glass, rock wool. Also other natural or synthetic fibres within the length ranges mentioned above may be used. The fibre webs themselves may contain cotton, silk, wool, vicuna, mohair, alpaca, flax, ramie, jute, cuprammonium, viscose, cross-linked cellulose fibres, cellulose acetate, cellulose tri-acetate, saponified cellulose ester fibres, polyamide and caprolactam fibres, protein fibres, halogenated hydrocarbon fibres, polyethylene, polypropylene, polybutadiene, polyisobutadiene, polyesters, vinyl fibres, dinitrile nitrile, acrylic and mineral fibres including glass and metal.