baber/WOPTO huggingface dataset:
Patent GB-487099-A (GB)
Title: Improvements in and relating to constant capacity feeding mechanism for controlling the rate of feed of materials
IPC: G01G11/08
Filed: 1937-06-04
Abstract: 487,099. Delivering material continuously. TRAYLOR VIBRATOR CO. June 4, 1937, No. 15587. Convention date, June 10, 1936. [Class 78 (i)] [Also in Groups XVIII and XXXV] A material-feeding mechanism comprises a vibratory feeding device for delivering the material to a convever driven at a constant speed and supported by a weighing mechanism including a normally balanced scale beam, and means controlled by the weighing mechanism in accordance with the balanced or unbalanced condition of the scale beam for controlling the vibratory movement of the feeding device to determine the rate of feed of material to the conveyer. Material in a feed hopper 33, Fig. 1, supported on arms 35 passes on to an horizontal tray 27 supported on inclined cantilevers 29 and vibrated by an electromagnet 31 in the manner described in U.S.A. Specification 2,098,034. Some of the vibration, passing through the supporting arms 35 is imparted to the feed hopper 33 and prevents arching of the material therein. The material from the vibrating tray falls on to an endless conveyer belt 62 carried on a scale beam structure mounted on a fulcrum 150. An adjustable gate 34 controls the outlet from the feed hopper to the tray. A motor 50, also mounted on the scale beam structure, drives the conveyer at a constant speed through speed-reduction mechanism 51. A casing 75 encloses the material on the conveyer and directs it down a shoot 80. The scale beam structure is balanced when in the unloaded condition by a weight 90 adjustable by a hand wheel 95. A sliding weight 99 is set according to the rate of feed required. If the weight of material on the conveyer varies, the beam structure rocks one way or the other, and one or other of two spring fingers 115, 116 closes a corresponding magnetically-operated mercury switch and by means of a relay adds or removes resistance to or from the vibrator circuit to diminish or increase the vibratory feed of the tray 27 so as to bring the flow of material back to normal. The movements of the relays operate further mercury switches to illuminate lamps indicating the departure from normal. If the deviation from normal persists, a heating resistance in the active lamp circuit causes distortion of a. bi-metallic member to close the circuit of a solenoid. The core of the solenoid then slightly adjusts a variable tap in an auto-transformer to adjust the voltage supply to the vibrating feeder, the action being repeated if necessary, until the vibrations of the feeder are sufficiently reduced or amplified to restore the normal flow with the beam structure in mid-position. In a modification, Fig. 13, wherein a constant volume of material is delivered by the conveyer (and a constant weight if the density is constant) an adjustable gate 246 constantly maintains a pile 251 of material above the top of the feed-gate opening and permits only a constant volume to pass. British Specification 471,356 is referred to.
Patent GB-993111-A (GB)
Title: Improvements in or relating to foundry moulding machines
Inventor: HOEFER HARTMUT
IPC: B22C15/24
Filed: 1964-04-15
Abstract: 993,111. Mould machines. LEIPZIGER EISENUND STAHLWERKE VEB. April 15, 1964, No. 15625/64. Heading B3F. A mould and core blowing machine comprises an upper part 1 and a lower part 2 interconnected by two columns 3 which are positioned diagonally in relation to a table 4 located between the parts 1 and 2 of the machine.
Patent GB-686263-A (GB)
Title: Banding machine
Inventor: SCHERER ROBERT PAULI
IPC: B41F17/36
Filed: 1950-06-22
Abstract: <PICT:0686263/III/1> <PICT:0686263/III/2> <PICT:0686263/III/3> <PICT:0686263/III/4> <PICT:0686263/III/5> A machine for applying a peripheral band of colouring materials to capsules and the like, comprises means for individually grasping and rotating each of said capsules and means for applying a peripheral band of colouring material on the rotating capsules. Referring to the drawings, capsules are fed into hopper 20, are scooped up by split portion 28 and pass through tube 25 into flexible tube 24 and rests against pan 43 on gate member 42.  This member is continuously reciprocated at such a rate as to permit discharge of a single capsule from the end of tube 24, across the aperture 36 into the lower bore 37 by which time the gate member 42 has returned and pin 43 again holds up the capsules.  The capsule which has passed into bore 37 is held up by the upper surface of plunger 46 which is reciprocated synchronously with gate 42 until this plunger retracts allowing the capsule to fall into aperture 45 and rest against wall 48 while another capsule leaves the end of tube 24, after which the first capsule is moved along the floor of aperture 45 and falls vertically on to the step by step advancing member 49 comprising blocks 50 spaced by narrow channels 51 through alternate channels of which pass tongues 55 and 57 which are alternatively reciprocated so that a capsule dropped from aperture 45 passes in step by step motion along to end 60 from whence it is removed by a pair of opposed chucks 61. Chucks 61 are carried by wheels 62 and 63, of which wheel 62 is fixedly mounted and wheel 63 slidably mounted on shaft 64.  Upper cams 97 and 97a act on link arms 80 so as to spread apart pairs of opposed chucks immediately below the chucks on rotation of chuck wheels 62 and 63 are aligned with a capsule resting against stop 60 of the member 49, and then release them so that spring 83 draws the chucks together to grasp and carry away the capsule.  The capsule is carried past inking devices and then lower cams 99 and 99a spread apart the chucks so that the capsule falls on to a drying device.  The inking devices comprise rotatable upper and lower working discs 169 and 169a resiliently supported and disposed in the orbital path of the capsules held by the chucks, and dipping into ink wells 174 and 174a the two devices carrying discs 169 and 169a respectively not being aligned with another so that they deposit spaced parallel bands of ink on the capsules. The drying device comprises a belt 210, including wire fingers so spaced as entirely to support the capsules, and long enough to permit drying of the ink, such drying being if desired accelerated e.g. by a battery of infra-red lamps, or a fan or oven.
Patent GB-1117031-A (GB)
Title: Method for the preparation of ortho vinyltoluene or related compounds
Inventor: SODERQUIST FREDERICK JOHN
IPC: C07C5/333
Filed: 1966-04-07
Abstract: Orthovinyltoluene is prepared from orthoethyltoluene, and similarly 2,3-, 2,4- or 2,5-dimethyl - 1 - vinylbenzene from 2,3-, 2,4- or 2,5-dimethyl-1-ethylbenzene, by a catalytic dehydrogenation in which ring isomerization is substantially inhibited wherein the vaporized heated feedstock mixed with a steam diluent is brought into contact with a dehydrogenation catalyst consisting of alumina, alumina promoted by platinum, chromic oxide, or iron oxide, or alumina-vanadium containing 0.5-10% by weight elemental vanadium, at 500-800 DEG  C. and an hourly space velocity of 0.1-10 gms. feedstock per c.c. catalyst, the condensible effluent gases are recovered, and the dehydrogenated product is separated therefrom.  The weight ratio steam diluent: feedstock may be 2:1 to 4:1.  A promoted alumina catalyst may contain at least 0.1 wt. per cent Pt, 2-20 wt. per cent Cr, or 2-20 wt. per cent Fe.
Patent GB-108781-A (GB)
Title: Improvements in and relating to the Manufacture of Pile Fabrics.
Inventor: MACKAY DANIEL ROBSON
IPC: D03D39/02
Filed: 1916-11-02
Abstract: 108,781. Mackay, D. R. Nov. 2, 1916. Pile-fabric looms. - In the manufacture of tufted fabrics of the Persian-knot type, the tuft yarn is wound in the form of a helix of which the convolutions are inserted in the spaces between the warp threads and drawn through the adjacent spaces, thus causing the tuft yarn to be coiled around the warp threads. The tuft yarn, which may be plain or printed, is wound on a collapsible bobbin such as e, Fig. 2, comprising two hinged cr separate parts g, h held distended by end caps i. To ensure the proper spacing of the convolutions, one or both of the edges of a gap in the bobbin may be notched, or one edge may be notched and the other provided with a detachable comb. The wound bobbin e is mounted on the lay b, Fig. 1, or other suitable part of the loom, and in front of it is mounted a warp deflector, shown also in part in Fig. 3, comprising bars k hinged to endpieces l and provided with teeth m, which enter the spaces between the raised warps c operated by shedding-devices a, a guide reed b<1> being provided to press the warps sideways against the reed dents to ensure proper spacing of the warps. By means of a lever &c., the bars k are given a relative endlong movement to cross the warps c, as shown in Fig. 5, to bring each space in front of the deflector in alinement with the adjacent space behind it. Hooks j are rotatably mounted on a bar n which is movable, ordinarily by hand, along the warps, and each hook has, preferably, a bend o at the part which passes beneath the deflector. The hooks j are caused to enter the warp spaces, emerge from the adjacent spaces in alinement therewith, and engage the tuft yarns at the gap in the bobbin e by a partial rotation of the hooks effected by cranks p and a movable bar q. The bobbin is then collapsed and withdrawn, together with the deflector, and the hooks are moved forwards again drawing the convolutions of the tuft yarn down through the back warp spaces and up through the alined front spaces, so that the tuft yarn f is coiled around the warps as shown in Fig. 8 and is drawn tightly against the previously inserted binding-weft. Another weft is inserted and beaten up, and the tuft yarn is then cut by a knife with a conical end or otherwise, thus freeing the hooks. The usual comb r secures the warp threads at the proper pitch and holds the finished work. The tufts may be secured to tuft warps arranged between pairs of ordinary warps, the bobbin being inserted between the tuft warp and the ordinary warps in one of the planes of the shed.
Patent GB-625791-A (GB)
Title: Improvements in or relating to phase shifting or phase modulating circuit arrangements
IPC: H03H11/18
Filed: 1947-06-13
Abstract: 625,791. Phase changing. RADIO CORPORATION OF AMERICA. June 13, 1947, No. 15676. Convention date, June 13, 1946. [Class 38 (ii)] [Also in Group XL (c)] The phase of an alternating current is reversed, shifted or modulated by a valve having two control grids, a screen grid and an output anode, the input A.C. being applied to one control grid and the modulating or control voltage to the second control grid. In Fig. 1, a heptode valve 10 has the input A.C. applied through potential-divider 19 to the first control grid 12, and a control voltage derived from a battery 28 and potentiometer 27 applied to the second control grid 14. The screen grid 13 and the anode 16<SP>1</SP> are connected through resistors 16, 17 to HT+, and output is taken from the anode through a capacity 24. With zero voltage on the grid 14, the output is in phase opposition to the input voltage, but as the grid 14 is made more negative by raising the slider 30, the screen takes more current and the voltages induced thereon, which are in phase opposition to the input voltage on the grid 12, reduce the output progressively to a zero value. Adjustment of the slider 30 beyond this point gives an output at the anode in phase with the input voltage. In a modified circuit (Fig. 2, not shown) a capacity is connected between the screen and the cathode, so that the phase of the screen voltage differs by less than 180 degrees from that of the input grid 12. In this case adjustment of the control slider 30 gives a continuous shifting of phase of the anode output. Fig. 3 shows this phasing capacity 31 applied to a phase-modulating circuit, in which the modulating voltage is applied to the second control grid 14 through a transformer 34.
Patent GB-1033973-A (GB)
Title: Process for alkylation of aromatic hydrocarbons
Inventor: HERVERT GEORGE LADISLAV
IPC: B01J27/06
Filed: 1963-04-22
Abstract: In the alkylation of aromatic hydrocarbons with an olefin in the presence of up to 0.8 gram of boron trifluoride per gram mol. of olefin and a boron trifluoride- and sulphur-modified alumina, there is used a mixture of ethylene and at least one heavier olefin and while ethylene remains unreacted alkylation of the aromatic hydrocarbon is effected by the heavier olefin. Preferably, the anhydrous alumina used is gamma-, eta-, or theta-alumina which has been treated with a sulphur-containing compound in an amount of from 0.01 to 25% by weight of the sulphur compound based on the alumina. Specified hydrocarbons are benzene, toluene, ortho, meta and para xylenes, ethylbenzene, ortho-, meta- or paraethyltoluene, 1,2,3 - trimethylbenzene, 1,2,4-trimethylbenzene, 1,3,5 - trimethylbenzene, n-propylbenzene and iso-propylbenze; phenylbenzene, nonylbenzene, dodecyl-toluene, diphenyl, diphenylmethane, triphenyl, triphenylmethane, fluorene, and stilbene; naphthalene, alpha-methylnaphthalene, beta-methylnaphthalene, anthracene, phenanthrene, naphthacene and rubrene.  Suitable alkylating agents are propylene, 1-butene, 2-butene, isobutylene, pentenes, hexenes, heptenes, octenes, propylene trimer, tetramer or pentamer; isobutylene dimer, trimer or tetramer and polyolefinic hydrocarbons, e.g. isoprene and butadiene. Gaseous olefines can be used when present only in minor proportions in refinery gas streams which may contain nitrogen, hydrogen, methane, ethane and propane.  The alkylation process takes place at 0 DEG  to 300 DEG  C. and atmospheric pressure to 200 atmosphere pressure, the reaction preferably taking place in the liquid phase which contains 2 to 20 mols. of alkylatable aromatic hydrocarbon per mol. of reactive olefin in presence of 1 to 50% by weight of catalyst based on the aromatic hydrocarbon. The contact time may be varied from 0.1 to 25 hours or more, the aromatic hydrocarbon reactant being passed through the catalyst at a L.H.S.V. of 0.25 to 20 vol./vol./hr. The catalyst is impregnated with sulphur by pretreating with a sulphur containing compound, either in the gaseous or liquid state or dissolved in an inert organic solvent.  Sulphur-containing compounds specified are hydrogen sulphide, thiophene, o-thioxene, m-thioxene, thiophenol, methyl mercaptan, ethyl mercaptan, n-propyl mercaptan, iso-propyl mercaptan, butyl mercaptans, amyl mercaptans, hexyl mercaptans and heptyl mercaptans.  The modification of the sulphur containing alumina with boron trifluoride may be carried out prior to the addition of alumina to the alkylation zone or in situ when modification is possible in presence of both the olefin and the aromatic hydrocarbon to be alkylated.
Patent GB-763282-A (GB)
Title: Improvements in or relating to pipe clamps
Inventor: POTTS JOSEPH
IPC: B23K37/053
Filed: 1954-05-28
Abstract: 763,282. Clamps. HAMPTON, Ltd., C. & J. Feb. 21,1955 [May 28, 1954], No. 15780/54. Class 61 A clamp for holding two lengths of pipe in end to end position during welding comprises two V-blocks 1 connected together in spaced relationship, a chain grip 6 being associated with each block. One end of each chain is pivoted to a screw 8 which passes through a clearance hole in a lug at one side of the V-block, a nut 11 threaded on the screw bearing on the other side of the lug. The nut shown has a knurled or ribbed head 12A for hand manipulation. In a modification the nut is adapted for manipulation by a spanner or tommy bar. The V-blocks are connected together by a length of tubing 2 screwed into bores in the blocks and additionally secured by rivets 3. In a modification the blocks are connected by a bar of rectangular section or a flat strip which may be thickened along one edge, one block being riveted to the bar and the other being adjustable by means of two or more spaced holes for a locating pin; alternatively both blocks may be pinned to the bar. In another modification the V-blocks are castings integrally connected by a member of cruciform or other section.
Patent GB-327324-A (GB)
Title: Improvements in manure or seed distributors
IPC: A01C15/16
Filed: 1929-05-22
Abstract: 327,324. Fenriksen, J. M. May 22, 1929. Manure and seed distributers.-In a machine comprising a transverse box in which rotates a shaft carrying radial vanes which eject the manure or seeds through openings in the base of the box, the base member is made concentric with the vane shaft and the parts are arranged in such a manner that the vanes project into the discharge openings throughout the length thereof and their extremities extend into close proximity to the outer surface of the base member. Rectangular discharge openings 21 may be situated between short arcuate plates 5<a> provided with extensions 6 attached to plates or slides 3, 4 at the bottom of the box. The box base is hinged to the front wall 7 and is normally held in position by a hinged bolt 12 engaging a forked bracket 14 on the rear wall 2. The size of the openings 21 is regulated by adjusting a notched plate 16 longitudinally of the box by means of a pivoted lever 18 engaging a projecting rod 17. The vanes 8 carried by the rotary shaft 7 extend to the openings 21 but do not touch the plate 16. The vanes are all made wide enough to keep the openings clear; or those of each set are displaced laterally relatively to one another. Shorter stirring fingers 8<a> of wire &c. may be evenly distributed along the shaft 7. To prevent the crushing of seeds the box base may be lowered slightly by loosening the nut 15 on the belt 12. In a modification, the box base consists of a single curved plate 24, Fig. 4, hinged on a rod 25, the discharge openings being formed in a raised part 27, beneath which an adjustment plate may be mounted. The arrangement is such that the angle between two lines from the axis of the shaft 7 to that of the rod 25 and to the centre of the raised part 27 of the plate 24, respectively, is at least equal to a right angle In another modification the discharge openings are formed in recesses in the base plate and the adjustment plate is concentric with the. base plate and is provided with grooved parts engaging with the recesses in it, adjustment being effected by moving the adjustment plate about the shaft 7 as centre. In another modification the adjustment plate and the raised parts of the base plate are straight in section instead of curved. The direction of movement of the adjustment plate in closing the discharge openings is the same as that of the vanes.
Patent GB-439050-A (GB)
Title: Improvements in or relating to electro-optical devices for controlling light
IPC: G02F1/03
Filed: 1934-05-28
Abstract: 439,050. Electro-optical light valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and MYERS, L. M., Roseberry, Cornfield Road, Middlesbrough. May 28, 1934, No. 15882. [Class 40 (iii)] An electro-optical light controlling device suitable for use in television and like receivers comprises a source of light S, a polarizer PNP, at least two alternately right handed and left-handed sets of quartz or like laminae RHQ and LHQ, an analyzer ANP and electrodes E for applying potentials to cause electrical stresses in the direction of the electrical axes of the laminae. The laminae are cut with their thicknesses in the direction of the electric axis EA, their greatest lengths in the direction of the optical axis and their widths in the direction of the mechanical axis MA, the sets of laminae being arranged as shown so that light passing through the laminae of two adjacent sets has the initial retardation of the circular components (along the optical axis) reduced substantially to zero. The electrodes E may be constituted by thin sheets of metal foil arranged between the laminae, the faces of the latter being preferably coated with graphite.
Patent GB-856203-A (GB)
Title: Improvements in or relating to gate or check valves
Inventor: KELLAR GEORGE ELMER
IPC: F16K3/30
Filed: 1957-05-20
Abstract: 856,203. Valves. HENDEY MANUFACTURING CORPORATION. May 20, 1957, No. 16008/57. Class 135. A valve seat unit which is readily removable from a valve housing having main and removable sections which may be bolted together comprises a valve seat ring 20, Fig. 5, secured as by screws 27, Fig. 4, to a frame 23 formed with an opening 25 in which the ring is inserted and at opposite edges with a pair of vertically extending channel-sectioned guides 26. Each guide 26 has an inclined bearing surface 26b between which and the main housing section 15 a wedge 24 is forced to compress a gasket 28 carried by the ring into sealing engagement with either the inlet or outlet opening of the main section. Shoulders 30 on the undersides of the guides 26 engage lugs 31 on the housing to correctly locate the frame with respect to the housing opening. The valve closure member comprises a disc-like gate 21 loosely mounting a nut 35 engageable with a screw-threaded stem 22 to open and close the valve and a bridge-piece 44 spanning the back of the disc and removably secured thereto with slight relative movement. The bridge carries an anti-friction roller 45 which cooperates with a wedge 54 carried by the disc so that when the disc covers its associated opening it is forced into sealing contact with the seat ring. A bolt 55 adjusts the vertical position of the wedge and a grub-screw 57 its inclination. In another embodiment, the valve disc 121, Fig. 12, is carried on an arm 140 mounted upon a shaft 141 which protrudes outside the casing and carries a weighted arm to hold the valve closed against inlet pressure. As before a seat ring 120 is secured to a frame 123 which is held in place in the housing 115 by a pair of wedges 124.
Patent GB-1149370-A (GB)
Title: Improvements relating to the radio frequency sputtering of materials
IPC: C23C14/35
Filed: 1968-04-03
Abstract: 1,149,370. Sputtering apparatus. INTERNATIONAL BUSINESS MACHINES CORP. April 3, 1968 (April 10, 1967], No.16013/68. Heading C7F. In a R. F, sputtering apparatus, the impedance matching circuit 19 is positioned in an earthed conductive housing 21 forming a common enclosure with the ionization chamber 11. The material which is sputtered may be a metal e.g. Al, Mo, Au, Pt, Cu, Ge or Si or in a modified apparatus, using a magnetic field, Fig.2 (not shown) the material may be a dielectric, e. g. silicon nitride, quartz, borosilicate glass, calcium-aluminosilicate glass, alumina, mullite or silicon dioxide. The ionization chamber may contain argon, neon, oxygen, nitrogen or hydrogen.
Patent GB-279355-A (GB)
Title: Improvements in and in the manufacture of cement mortar, artificial stone, concrete and the like
IPC: C04B28/26
Filed: 1927-06-16
Abstract: 279,355. Pickstone, C. June 16, 1927. Concretes and mortars.-Waterproof cement mortar, concrete, &c. is obtained by substituting fine slate flour for 5-15 per cent of the usual aggregate, and adding “-¢ per cent of sodium silicate of 50-55‹ BÚ. to the gauging water. Specification 217,388 is referred to.