baber/WOPTO huggingface dataset:
Patent GB-617661-A (GB)
Title: Improvements in and relating to soldering irons
IPC: B23K3/06
Filed: 1946-10-11
Abstract: 617,661. Soldering-irons. HUGHES, C. L. (Nelpin Manufacturing Co.). Oct. 11, 1946, No. 30426. [Class 83 (iv)] A solder feed for a soldering-iron comprises a base 1 provided with means to attach it to the soldering iron, and having a solder guide neck 2 and a pair of indented driven and idle feed rolls 11, 10, the indentations in the driven roll being engaged by handactuated means for rotating the rolls to advance the solder 30 into and through the guide neck. Fixed to the base is a bracket 26 co-operating with a clamping member 27 with tightening bolts for securing the base to the soldering iron and having a recess to receive a spring 24 secured thereto, the other end of which is attached to a tongue 23 connected to a hand lever 19, 22 rotatably mounted on a hollow stud 17 forming the axis of the driven roll. This roll is driven by the engagement with its indentations of a pawl 18 controlled by a V-shaped wire spring. The lever is held on the stud by a screw 21 and washer. The idle roll is mounted on a stud 12 provided with a rectangular portion guided in a slot in the base to adjust the roll pass for solders of different thicknesses and fixed in position by a nut 16 and washer. On the gapped neck 2 fits a tubular guide 4 the other end of which is curved to aim the solder at tho heated point of the iron. The guide has openings 7 and has tabs 9 which may be spread apart to remove the guide from the neck.
Patent GB-1224318-A (GB)
Title: Improvements in or relating to lasers
Inventor: KATZENSTEIN JACK
IPC: H01S3/115
Filed: 1967-06-30
Abstract: 1,224,318. Lasers. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 27 June, 1968 [30 June, 1967], No. 30429/67. Heading HlC. In a Q-switched laser which produces an output of narrow spectral width, a dichroic crystal active medium 1, e.g. ruby, is pumped by a helical xenon flash tube 2 and is located between flat external reflectors 3, 4, Q-switching being effected by a Pockel's cell 5, while the spectral width is reduced by a birefringent plate 6 which functions as a frequency filter. The Pockel's cell is normally electrically stressed so as to be a #/4 plate forming a Q-spoiling element, a giant pulse occurring when the stress potential is removed. The birefringent plate may be a calcite plate the optic axis of which is oriented at 45 degrees to the optical axis of the ruby or other dichrioc crystal active medium. In operation, plane polarized light is emitted by the active medium and is converted into arbitrary elliptical polarization by the birefringent plate, except for those wavelengths for which the difference in optical path for the ordinary and extraordinary ray is an integral multiple of a wavelength. Due to multiple passes in the resonator, the birefringent plate 6 is equivalent to a Lyot filter with all birefringent elements equal.
Patent GB-270179-A (GB)
Title: Hat sewing machine
IPC: D05B23/00
Filed: 1926-12-02
Abstract: 270,179. Fairweather, W., (Singer Manufacturing Co.). Dec. 2, 1926. Sewing-machines; frames. - The frame or a machine specially suitable for sewing hats comprises a standard 1 a downwardly-curved bracket arm 3 having no upward projections on its outer end and an upwardly-inclined work arm 7. A vertical shaft 13 is driven through bevel gearing from the shaft of the pulley 19 and actuates the looper shaft 34. Needles, driving. - The needle-bar is actuated by mechanism comprising a link 21, a bell-crank lever 24, and a pitman 25 ball-jointed to the lever 24 and to a crank pin 14. The shaft 34 carries a rotary chain-stitch looper. Presser-bars.-The presser-foot is carried by a bar on which bears a leaf-spring 27 tensioned by a screw 30. Feed by dogs.-The feed-bar comprised three rigidly connected parts 37, 39, 38 the part 37 being hung on a ball joint at 40 and guided at its lower end in a slot 41. Rising and falling movements are imparted to the member 38 carrying the feed-dog 43 by an eccentric 44 on the looper shaft connected by a link 45 to a ball 46 on the member 38. Feed movements are imparted by an eccentric 47 embraced by a forked arm 48 of a bell-crank lever the other arm 50 of which is connected bv a link 51 to a ball on the member 38. A roller 53 on the feed-dog carrier engages a slot, curved in a plane about the ball 40 as centre, to guide the movements of the feeddog. Specifications 149,838 and 185,070 are referred to.
Patent GB-281275-A (GB)
IPC: H02J13/00
Filed: 1927-11-15
Abstract: 281,275. Compagnie pour la Fabrication des Compteurs et MatÚriel d'Usines Ó Gaz. Nov. 27, 1926, [Convention date]. Signalling over power circuits. - Polyphase signalling currents of musical frequency are superimposed on power circuits distributing polyphase low frequency currents by transformers, the arrangement being such that the currents of power frequency fed to the signalling generator, and vice-versa, are substantially reduced or eliminated. In three-phase systems, three three-phase transformers may be so connected that the sum of the three phases of power frequency is fed to each winding of the signalling generator and vice-versa, the transformers being balanced so that the resultant sum is practically zero. In the arrangement shown, three-phase signalling current from the leads' 40, 41, 42 is superimposed on three separate feeders A, B, C from the three-phase bus-bars 1, 2, 3. The leads 4, 5, 6 of each feeder include the secondary windings of three-phase transformers such as 13, 14, 15, the primaries of which are connected across the leads 40, 41, 42. The leads 40, 41 are connected across the transformer 13 of feeder A, across the transformer 18 of feeder B, and across the transformer 20 of feeder C, and the leads 40, 42 and 41, 42 are similarly connected to the other transformers, so that the bus-bars 1, 2, 3 are practically at equal potentials as regards the signalling currents, and conversely the leads 40. 41, 42 are at equal potentials as regards the power currents. In case the system becomes unbalanced, circuits tuned to the signalling frequency and power frequency may be connected across the leads 1, 2, 3 and 40, 41, 42 respectively. The currents of power frequency led to the signalling generator may be further limited by the employment of transformers of the air-gap type which act efficiently for current of signalling frequency but not for currents of power frequency. Further limitation of interference may be obtained by condensers connected in series with the primaries of the superimposing transformers.
Patent GB-410017-A (GB)
Title: Improved method and circuit-arrangement for keeping constant an electric current
IPC: G05F3/04
Filed: 1933-11-06
Abstract: 410,017. Automatic regulation. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Nov. 6, 1933, No. 30774. Convention date, Nov. 18, 1932. [Class 38 (iv).] A resistance is connected in series with a variator by the influence of the variator voltage when said voltage approaches the value above which the variator would be unable to maintain the current in the circuit substantially constant, and the resistance is cut out due to the action of the variator voltage when this drops to the lower limit of voltage of the constant current range. As shown, the variator 1 is capable of maintaining the current through circuit 3 constant when its voltage lies between values V1 and V2 and a relay 6 is provided to opencircuit the resistance 4 when the voltage across the variator reaches the value V1 and short-circuit it when it reaches or approaches V2. Additional resistances 7, 9 may be provided further to extend the current controlling action, these resistances being under the control of relays 8, 10 which are effective at somewhat higher voltages. The resistances may be shortcircuited by mercury switches tilted by the armatures of electromagnets.
Patent GB-358291-A (GB)
Title: Improvements in or relating to rolling mills for rolling metals
IPC: B21B13/14
Filed: 1930-10-15
Abstract: 358,291. Rolling. EMERY BROS., Ltd. and WILLIAMS, E. L., Victoria Rolling Mills, Litchfield Road, Aston, Birmingham. Oct. 15, 1930, Nos. 30791 and 35051. [Class 83 (iv).] A rolling mill for strip or sheet comprises a. small driven roll a backed by a pair of spaced rolls c and working with a large roll b, the small roll being driven by large gears at each end which act to dynamically balance it. Several arrangements are shown, e.g. in Fig. 4, in which all the rolls. may be driven from one surrounding chain, the small working roll a being driven by gearing from the chain driving shaft. In Fig. 5, showing the rolls arranged as in Fig. 1, an electric motor 10 drives the roll I through a magnetic clutch or a free-wheel 14 and helical gears 6, 8. The roll 1 then frictionally drives its support rollers 3 which in turn drive the top roll by chains 6. The freewheel allows a coiler to draw the metal strip through the rolls. A coiler may be arranged on each side of the rolls to draw the strip back and forth through the rolls, a reversible drive being provided for the mill. The chain wheels and gear wheels on the roll ends act as flywheels. In another mill the working roll is coupled to its driving gear wheels at each end by splines. The pass is adjusted, both ends equally, by a hand-wheel and gearing for the top roll.
Patent GB-936409-A (GB)
Title: Improvements in or relating to current density measurement in electrolysis
Inventor: CLARK JOHN OWEN EDWARD
IPC: G01R19/08
Filed: 1960-09-07
Abstract: 936,409. Current measurement; measuring electrodes. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. July 4, 1961 [Sept. 7, 1960], No. 30874/60. Class 37. The current density of an electrolyte bath over a small area of an electrode therein is measured as a function of the potentials between such electrode and each of two points in the electrolyte which are closelyspaced at predetermined distances from the electrode; such potentials being additively combined so as to eliminate the effect of the electrical resistance of the electrolyte from the resultant. An electroplating bath 1 (Fig. 1), containing anode 2 and work cathode 3 in electrolyte 4 has an immersed insulating carrier 6 with subsidiary metal electrodes 7, 8 of similar material to the cathode; against which the carrier is placed so that electrode 7 is spaced therefrom by a distance twice the spacing of electrode 8. The latter is connected to terminal 9 of an oscillating relay and to earth over resistance 2r, and the former is connected to other relay terminal 9 over resistance r; the terminal being returned to earth over other terminal r. Oscillatory potentials from the relay armature 11 are amplified to operate a meter 12 representing the difference of the potentials, which is shown to be proportional to the current density. The electrode carrier 6 comprises a hollow handled plastic tube with flat face 14 applied to the electrode, containing internally the spaced and perforated parallel electrode discs 7, 8 (Fig. 2). An agitator may be assembled on the electrode carrier, and a single electrode may alternatively be placed successively at two points of the electrolyte for measurement and comparison of the developed potentials. The subsidiary electrodes may be disposed at similar distances from the cathode and be made of different sizes: Similar measurement may be effected at bath anode.
Patent GB-1443715-A (GB)
Title: Vinylurethanes
IPC: C08F20/36
Filed: 1973-06-28
Abstract: 1443715 Photopolymerizing vinylurethane monomers KANSAI PAINT CO Ltd 28 June 1973 30929/73 Heading C3P [Also in Division C2] Polymers are prepared by photopolymerzing a divinylurethane monomer having the gener formula wherein R is hydrogen or methyl and A is alkyleneoxy or polyalkyleneoxy of the formula where m is an integer of 1 to 11; or a vinyl urethane monomer having the general formula wherein R and A are as above, X is alkylene, polyalkyleneoxy, alkane-tri-, tetra-, penta- or hexa-yl, or oxygenated alkane-tri-, tetra-, penta- or hexa-yl, n is a number from 2 to 6 corresponding to the valency of X, and i is an integer in the range of from n to 0À7n. The monomer of Formula I or III may be photopolymerized in the form of a composition comprising the vinylurethane monomer, a photocopolymerizable ethylenically unsaturated liquid monomer and a photosensitizer.
Patent GB-961021-A (GB)
Title: Improvements in or relating to the manufacture of gramophone records
Inventor: HOLMAN HERBERT EDWARD
IPC: B29D17/00
Filed: 1959-09-11
Abstract: 961,021. Moulding gramophone records. ELECTRIC & MUSICAL INDUSTRIES Ltd. Aug. 31, 1960 [Sept. 11, 1959], No. 31002/59. Heading B5A. A gramophone record is moulded in a press from thermoplastic material, the air pressure between the pressing members being less than atmospheric. Thermoplastic material is placed between heated press matrices 5, 6, and before it becomes mouldable the press bolsters 1, 2 are closed to compress the rubber ring 7 and seal the space between the matrices. Air is extracted from said space by vacuum pump 11 and the matrices are finally closed when the pressure therebetween is at the required sub-atmospheric level. Valve 14 is then opened and atmospheric pressure or gas under pressure is introduced through pipe 12 between the matrices which are subsequently opened.
Patent GB-229035-A (GB)
Title: An improved method of and means for separating from one another the constituent materials of small arms ammunition
IPC: C22B7/00
Filed: 1923-12-10
Abstract: 229,035. White, A. M., and Pickett, F. N. Dec. 10, 1923. Metals, recovering from scrap.-The cores or like constituent parts of jacketed bullets are removed by melting them away so as to leave the cupro-nickel jacket substantially pure, the operation being performed by dipping the bullets in a bath of molten material, then removing them from the bath and agitating them to cause the separation of the molten constituent part. The last traces of impurities may be removed by acids. When the core consists of lead and a tip of fibre, the bullet is put in a perforated rotary drum and dipped in molten lead, then the drum is raised and rotated and the dipping is repeated if necessary until all the lead has been removed. During this operation, the fibre generates reducing gases, which prevent oxidation of the metal, the operation being carried out in a closed space to retain the reducing gases. When the tip of the core is of aluminium instead of fibre, the lead is first removed in the same way, but charcoal is mixed with the bullets to produce the reducing gases, and after the removal of the lead, the aluminium is removed in a similar manner bv means of a bath of molten aluminium.
Patent GB-188219-A (GB)
Title: Improvements in and relating to electric heat radiators
IPC: F24C7/06
Filed: 1921-11-21
Abstract: 188,219. Ellis, A. J., and Vines, J. C. Nov. 21, 1921. Electric radiators.-In an electric heat radiator of the type in which the heating-unit consists of a core 7 of refractory material externally wound with high resistance wire 11, the core is made of hollow spherical or double-conical shape and is integrally formed with a solid externallythreaded extension 8 through which the conductors 15, 19 to the resistance element are passed. The usual parabolic reflector is secured in position abutting against a shoulder 29 on the core 7 by means of a cap 27 screwing on to the extension 8 and having a flange 28 bearing against the reflector. An insulating partition 24 integral with the extension 8 extends between the conductors 15, 19, and the conducting-wires 20, 21 pass through an insulating bush 31 in the cap 27. The core 7 preferably has a central aperture 9 adjacent to which in the interior of the core the resistance element is wound into one or more loops 17.
Patent GB-1271877-A (GB)
Title: Conveyor apparatus
Inventor: NOEL EUGENE MERRILL
IPC: B65G47/29
Filed: 1970-06-26
Abstract: 1,271,877. Endless conveyers. E. M. NOEL. 26 June, 1970. No. 31204/70. Heading B8A. Articles delivered at random to an endless conveyer 40 are arranged thereon for a timed discharge therefrom by an escapement mechanism 14. The mechanism 14 comprises a series of plates 110 arranged on either side of a pair of chains 52, constituting the conveyer 40, and pivoted about a shaft 112 at their upstream end so as to be raisable above the conveyer to lift articles therefrom and a stop 102 mounted on arms 144, pivotally mounted on a shaft 146, and connected to the plates 110 by an arm 166 pivotably mounted at an intermediate point 168 and links 170, 172. A cam 90 co-operates with a cam follower 158 mounted on the arms 144 to oscillate the plates 110 and the stop 102 such that when one is in a raised position the other is in a lowered position and vice versa. In operation a latch member 192 holds the arms 144 in a down position with the plates 110 extending above the conveyer and the stop 102 retracted. The latch is controlled by a switch 81 actuated by articles on the conveyer and acting through a time delay 212 such that if only one article passes over the switch the batch is not released but if a series of articles have been held on the plates such that they extend back to the switch to close the switch for a period exceeding the time delay then the latch is released. This initiates movement of the arms 144 in timed relation with the cam 90 to lower the plates 110 and allow articles thereon to be advanced against the stop 102 which has subsequently been raised. The spacing of the stop and the end of the plates is such as to allow only one article at a time to be discharged from the plates. As the cam rotates further the plates 110 are raised and the stop lowered to allow the article to advance on to a synchronized flighted conveyer 16 for delivery to a packaging machine (not shown). The cycle is then repeated so long as there are sufficient articles held by the plates to maintain the switch 80 in its closed position. In an alternative embodiment, Fig. 17 (not shown) the plates 110 are replaced by arms (256) with rollers (260) for engagement with the articles and the stop (270) also has a roller (274).
Patent GB-795799-A (GB)
Title: Improvements in electrical distribution system
IPC: H02G5/08
Filed: 1955-11-01
Abstract: 795,799. Two-part couplings; distribution boards; conduits. ROLLER-SMITH CORPORATION. Nov. 1, 1955 [Nov. 3, 1954], No. 31235/55. Classes 36 and 38 (1). In a distribution system wherein boxes may be plugged in at spaced points along and on both sides of a duct carrying bus-bars, the duct is formed in sections each comprising a pair of opposed metal channel members 4, Fig. 4, with flanged sides bolted together. The channel members are cut-away at each end to form extensions 12 and openings for access to terminals, the extensions 12 of adjacent sections overlapping as shown and the joint being surrounded by a housing 36. Ventilation slots are provided in the walls of the duct and the flanged sides of the channel members meet at spaced points 28 thereby providing intermediate spaces 32 for the passage of cooling air. The bus-bars 20 ... 22, 20<SP>1</SP> ... 22<SP>1</SP>, Fig. 12, are supported at spaced points by slotted insulators 57 held together by brackets 54, these brackets and insulators being slotted and apertured at 70, 78 respectively for the passage of withdrawable contactors carried by the plug-in boxes, elongated apertures 80, Fig. 9, which register with apertures 78, being provided in the walls of the duct. Each aperture 80 is normally closed by a shutter 82 slidably mounted on the inside of the duct and locked by buttons 94 mounted on spring arms 92 and engaging apertures 96 in the shutter which register with apertures 98 in the duct. As a plug-in box is presented to the duct (with the contactors withdrawn), studs 100 thereon depress buttons 94, thereby permitting the shutter to be slid to the open position shown, such movement causing slots 97 in the shutter to engage beneath heads on the studs 100 to lock the box to the duct. To remove the box therefore, the contactors must be withdrawn and the shutter slid to its closed position. Additional securing means for the box is shown in Fig. 12, consisting of hooks 126 carried by the box and engaging slots 128 in the duct. The hooks are retractable by means of nuts 124 to draw the box to the duct. Fig. 15 shows another arrangement wherein a panel carrying on its rear face enclosed bus-bars 142 with busbars 144 tapped therefrom has shuttered apertures 83 into which boxes P may be plugged as in the previous system. Specification 759,798, [Group XXXVII], is referred to.
Patent GB-258757-A (GB)
Title: Improvements in sliding latches
IPC: E05B55/00
Filed: 1925-12-10
Abstract: 258,757. Laing, J. G. Dec. 10, 1925. Night latches of the type wherein locking and unlocking means are provided on the knob side of the latch as well as on the pin tumbler lock side, have a special key for operating such locking means. The latch-bolt b, normally shot by springs d and retracted by the followed f of the knob g and the follower i of the pin-tumbler lock, can be blocked by the arm q of a lever pivoted on the rod o when the arm t of the lever is rocked. The arm t has a cam face s engaged by the lock-follower i so that the follower can move the arm q out of the path of the bolt b against action of the spring q<1>. From the handle side of the latch, the arms q, t are operated by a rod y<2> carried by a barrel operated by a special key from the side of the lock casing. To retain the arm q in inoperative position against the action of its spring q<1>, the arm t snaps into a slot w in an arm v carried by a spring-pressed rod u as shown in Fig. 4. The rod u is depressed to release the arm t to block the bolt by pressure on the knob y<1> from the handle side of the latch, and by the arrangement of an arm x on the follower i with a hook u<1> on the arm v from the pin-tumbler side.
Patent GB-1059635-A (GB)
Title: Permanent magnet device for separating and collecting ferromagnetic particles from fluids
IPC: B03C1/28
Filed: 1963-08-08
Abstract: 1,059,635. Magnetic separators. SCHRAUBEN-UND DRANTLAGER G.m.b.H. Aug. 8, 1963 [Aug. 9, 1962; Sept. 20, 1962; Aug. 2, 1963], No. 31290/63. Heading B2J. A permanent magnet for separating and collecting ferromagnetic particles from fluids comprises a pot-shaped member 4 of soft magnetic material having a recess of cylindrical and conical form, a cylindrical member 9 of permanently-magnetic material enclosed by a non- magnetic sleeve 12 and fitted within the cylindrical portion 6 of the recess and an attachment 11 of high magnetic saturability arranged to form, with the conical portion 7 of the recess, an annular collecting space which tapers inwardly of the recess. The embodiment shows an oil drain plug; after all the parts have been assembled it is magnetised in an iron-cored magnetic circuit so that a magnetic flux is established between the pole formed by the attachment 11 and the pole formed by the mouth of the pot-shaped member 4. The narrowing air-gap increases the density of the magnetic field towards the bottom 13a of the collecting space so that the ferromagnetic particles will tend to deposit from the bottom of the space upwards and so ensure complete filling of the space without causing bridge-formations. The sleeve 12 may be made of copper, brass, aluminium or synthetic plastics, the attachment 11 of high carbon steel and the cylindrical member 9 of an alloy of aluminium, nickel and cobalt.