baber/WOPTO huggingface dataset:
Patent GB-1196514-A (GB)
Title: Preparation of Thiolhydroxamate Esters
IPC: C07C/
Filed: 1968-03-14
Abstract: 1,196,514. Thiol hydroxamate esters. E. I. DU PONT DE NEMOURS & CO. 14 March. 1968 [28 March, 1967; 31 Jan., 1968], No. 12545/68. Heading C2C. Thiol hydroxamate esters of the formula wherein each of R 1  and R 2 , which may be the same or different, represents a methyl or ethyl radical, are obtained by reacting a nitroalkane of the formula with an alkyl meroaptan of the formula and a base which comprises potassium hydroxide or a potassium alkoxide containing 1-4 carbon atoms in the presence of a C 1-4  alkanol, the molar ratio of mercaptan to nitroalkane being between 1À1 : 1 and 3 : 1, the molar ratio of mercaptan to base being between 1À1 1 and 3 : 1, and the molar ratio of base to nitroalkane being between 0.8 : 1 and 1À6 : 1. The reaction is suitably effected in a closed vessel under autogenous pressure at a temperature of 40- 120 C. and an additional solvent may also be present. In carrying out the reaction it is preferred to add the nitroalkane after mixing the mercaptan and base or to add the base after mixing the mercaptan and the nitroalkane, preferred bases being potassium methoxide or hydroxide.
Patent GB-418828-A (GB)
Title: Improvements in or relating to gasfilled triodes, tetrodes, pentodes and the like
IPC: H01J17/14
Filed: 1933-05-01
Abstract: 418,828. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ESPLEY, D. C., c/o General Electric Co., Wembley, Middlesex. May 1, 1933, Nos. 12648 and 35245. [Class 39 (i).] In a gas-filled tube, such as a triode, tetrode or pentode, the difference between the potentials on the grid necessary for starting and stopping the discharge is reduced by applying to the tube a magnetic field having a component perpendicular to the cathode to anode electron path. In one form an anode 4 surrounds a grid 3 and an indirectly-heated cathode 2 in a tube 1 having a filling of mercury vapour, and a solenoid 5 surrounding the tube produces a magnetic field parallel to the cathode 2. A permanent magnet may replace the solenoid 5, and either means for producing the field may be arranged inside the envelope. The magnetic field is preferably arranged so that the difference between the starting and stopping potentials is a minimum. The tube may be used in circuits, such as that described in Specification 389,917, which generate a square wave form. A suitable tube for use according to the invention is one in which the anode is of copper or other non-magnetic material and forms part of the envelope. Characteristic curves are given for a tube with and without a magnetic field.
Patent GB-984644-A (GB)
Title: Improvements in or relating to the assembly of folding blanks for cases
Inventor: KAMPER ANDREW MATHIS
IPC: B27M3/36
Filed: 1962-04-03
Abstract: 984,644. Box-making machines. NO-NAIL BOXES. Ltd. March 15, 1963 [April 3, 1962], No. 12777/62. Heading B5D. [Also in Division B8] A machine of the kind in which a box blank is made by securing the front, bottom, back, and if desired, the lid panels at opposite sides to two toothed metal binding strips and also, if desired, to one or more intermediate metal binding strips, comprises a press having elongated press heads and means to hold the binding strips and panels in the correct relative positions, strip conveying means to convey the binding strips longitudinally into the press and panel feeding means to transfer the panels from a feed table into the press in a direction normal to the lengths of the press heads. After the binding strips have been pressed into the panels the teeth are clenched over by clenching rolls. At the end of a cycle the machine stops with three binding strips positioned in the press on conveyers 67, 68, 69 (Fig. 4), and is restarted when the operator presses a switch in a controlling pneumatic circuit (Fig. 14, not shown). Fluid is admitted to cylinders 175 and by means of racks 176 and pinions 177 the panels which have previously been positioned on the feed table are pushed on to shelves 100, 101 in the press by a thrust bar connected to conveyer chains 168 (see also Division B8). At the end of this movement a micro-switch is tripped and causes the thrust bar to return to its initial position whence the tripping of a second micro-switch causes fluid to be admitted to cylinders 31 and the press beams 135, 136, 137 to descend, plungers 93, 94 on the press beams associated with the marginal binding strips descending with the press beams to engage bars 92, 96 respectively and clamp the marginal binding strips during the pressing operation. During the descent of the press beams a third micro-switch is tripped whereby cylinders 108 (not shown), 109 (Fig. 7), lower the shelves 100, 101 so that the panels are pressed down, causing the teeth on the binding strips to be pressed through them. After the pressing operation the press beams return and at the end of their return stroke trip a fourth micro-switch so that stop-bars 214 (Fig. 7), are drawn down and effect the starting of a motor 71 (Fig. 1), which feeds the blank out of the press between clenching rolls 226 and 232 which bend down the end parts of the teeth of the binding strips. The blank when ejected trips a fifth micro-switch whereby the shelves 100, 101 and the stop-bars 214 are raised and three further binding strips are then inserted by hand and are carried into the press by the conveyers 67, 68, 69 until they engage the stopbar and operate a micro-switch 218 to stop the motor. The press beams are adjustable so that the machine can deal with different sized blanks. Specification 843,836 is referred to.
Patent GB-353516-A (GB)
Title: Improvements in systems for communicating with moving vehicles
IPC: H04B1/50
Filed: 1930-04-25
Abstract: 353,516. Preventing inductive disturbance. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych, London.-(Assignees of Affel, H. A. ; 827, Morningside Road, Ridgewood, and Green, E. I. ; 150, North Munn Avenue, East Orange, both in New Jersey, U.S.A.) April 25, 1930, No. 12835. Convention date, Oct. 2, 1929. Drawings to Specification. [Class 40 (iv).] In a carrier current signalling system to vehicles in which existing lines adjacent the track are utilized interference with adjacent telegraph and telephone lines is prevented by inserting in those lines not used for carrier signaling loading or choke coils. Specification 335,936, [Class 40 (v), Wireless signalling &c.], is referred to.
Patent GB-647366-A (GB)
Title: Improvements in or relating to fin assemblies for projectiles and the like
Inventor: FONSECA EVELYN CECIL MUSCHAMP
IPC: F42B10/16
Filed: 1948-05-10
Abstract: 647,366. Ammunition projectiles. BRISTOL AEROPLANE CO., Ltd. May 10, 1948, No. 12843. [Classes 9 (i) and 9 (ii)] A fin assembly for a projectile is provided wherein the fins are pivotally mounted on a frame and each is independently held in the folded position by a catch, all the catches being simultaneously unfastened from the frame and connected with a common release gear, when the assembly is fitted on the projectile. A sea-mine 10 adapted to be dropped from aircraft comprises a mine body 11 and a detachable fin system 12. The fin system' comprises four fins 13 hinged at 14 to a frame 15, Fig. 2, the fins swinging outwards when the mine is dropped and the fin' system being automatically thrown off when the mine hits the sea. The frame 15 comprises a cylindrical member 16 with axially spaced flanges 17, Figs. 2 and 3. The pivoted fins, mounted on tubes 18 extending between the corners of the flanges, Fig. 3, are held in the folded position, Fig. 4, by two-headed pins 19. Each fin has an upstanding flange 22 with a slot 23 receiving one end of a pin 19, the opposite end resting in a slot 24 in the member 16. Each pin is connected by a rod 25 to a bracket 27 and held there by a hook 28. Normally the bracket lies within the member 16, but when the frame is placed on the mine, the bracket is pushed out so that the rods 25 are disengaged from the member 16. On launching, a cable removes the hook 28 whereupon the fins fly outwardly under the action of springs 36.' Each fin carries an arm 29 pivotally connected to a link 30, the free end 39 of which moves on a slide 33 secured to the member 16, and comes to rest in slot 34 when the fins are extended (dotted lines in Fig. 4). The spring 36 is anchored to the link 30 and to a bracket on the member 16. A device 50 is provided for releasing the frame 15 when the mine strikes the water. This device consists of a bracket 40 on the member 16 connected to a flange 17 by a rod 41, Fig. 3. The bracket also carries a lever 42, one arm 43 of which, acted on by a spring 45, passes through an opening in the member 16 to engage the mine 11. The other arm 46 of the lever lies behind a weight 47 slidable on the rod 41. A locking wire 48 holds the weight clear of the arm 46. On impact the weight 47 shears the wire 48 and strikes the arm 46 so that the arm 43 is released and the mine is freed from the frame. Two devices 50 are placed at diagonally opposite corners, Fig. 2.
Patent GB-747063-A (GB)
Title: Improvements in or relating to electric connection selecting arrangements
Inventor: CHAPMAN ROGER
IPC: H03J5/00
Filed: 1954-05-04
Abstract: 747,063. Plug - boards. KOLSTERBRANDES, Ltd. May 4, 1954, No. 12928/54. Class 38(1). A transformer is adapted for different supply voltages by means of a panel 11 carrying a central socket 1 and a series of sockets 2-8 arranged on a circle concentric therewith, and connected to tappings on the transformer primary winding. A plug 13, Fig. 4, having a central pin 14 and shorter pins 15-17 suitably interconnected, is engageable with the panel 11, the longer pin 14 engaging socket 1 so that the plug can be rotated to select a suitable connection before being pushed home. A lug 18 on the plug engages an arcuate slot 12 in the panel which limits the amount the plug can be turned so as to avoid wrong connections being made.
Patent GB-794230-A (GB)
Title: Electric current rectifier
IPC: H01L21/00
Filed: 1956-04-27
Abstract: 794,230. Dry plate rectifiers. STANDARD TELEPHONES & CABLES, Ltd. April 27, 1956 [May 2, 1955], No. 12975/56. Drawings to Specification. Class 37. A dry-plate rectifier comprises a layer of magnesium or magnesium alloy and a layer of tellurium with a continuous layer of magnesium telluride interposed between them. A baseplate of Mg or an alloy of Mg with up to 10 per cent of metals from the group Al, Zn, Mn and Sn, e.g. 98.5 per cent Mg, 1.5 per cent Mn or 95.71 per cent Mg, 3 per cent Al, 1 per cent Zn, 0.3 per cent Mn is degreased, etched in, e.g., formic acid or nitric acid in dilute solution and Te evaporated on it in vacuo from a molybdenum boat, or pressed on in the form of a powder. A copper foil is placed on the Te layer and the assembly submitted to a pressure of 10-50 tons/sq. inch for 5 minutes in a press heated to 300-400 C. This treatment forms a magnesium telluride layer between the Te and Mg and a copper-rich copper telluride layer between the Te and the copper foil. Pb may be used instead of Cu. The device is afterwards electroformed by applying an increasing alternating voltage while adjusting a series load to keep the output current constant, or by applying a direct current to it.
Patent GB-181215-A (GB)
Title: Improvements in or relating to mowing machines, for agricultural purposes
IPC: A01D34/03
Filed: 1921-05-06
Abstract: 181,215. Ludlow, V. May 6, 1921. Reversing-gearing; free-wheel gearing; driving auxiliary parts. - In a motor-driven moving machine the motor shaft q carries a bevel wheel s which constantly meshes with bevel wheels t, u, mounted to rotate on the axle of the carrying wheels; one or other of the wheels t, u, is adapted to be clutched to the axle by a splined sleeve operated by a. pedal. One of the carrying wheels is rigidly secured to the axle and the ether is operated through an overrunning gear. The knife bar is driven from the axle through a one-way clutch 11, 12, bevel-gear 1'7, a shaft 18, and crank and connecting-rod gear 20, 22.
Patent GB-906596-A (GB)
Title: Improvements in index carriers and apparatus for electrically reading index carriers
Filed: 1959-04-16
Abstract: 906,596. Sensing record cards. APPEL, L. April 16, 1959 [April 17, 1958], No. 13052/59. Class 106 (1). Data sensing apparatus comprises at least one pair of electrodes between which is guided a flat, flexible index carrier comprising a layer of high-tension-resisting insulating material, the electrodes being connectible to a voltage supply source, whereby the presence of a perforation in the index carrier allows a corresponding current impulse to flow by the formation of an electric arc through the perforation, the impulse being amplified by an electronic amplifier before being utilized. As described, a card 1 formed from two sheets of paper with an insulation layer 2 bonded between them, contains a minute perforation 4 which, when located between electrodes 3 which are subject to a high-tension alterna ting voltage from a transformer U 2 , allows current to flow through an arc between the electrodes and, by developing a P.D. across a resistor R 2 , fires a thyratron Th and so energizes a relay I 2  controlling a utilization circuit. Where combination coding is used the relay contacts are interconnected (Fig. 2, not shown) for de-coding purposes. Further electronic means may be used instead of the relay I 2 , and another way of controlling the firing of the thyratron is mentioned. The card may include a layer of conductive or semi-conductive material to act as a counter-electrode. Apart from cards, plates, strips, films or bands may be used.
Patent GB-1354413-A (GB)
Title: Heat-sensitive copying material and process
IPC: G03C1/52
Filed: 1971-05-04
Abstract: 1354413 Thermographic materials SCOTT GRAPHICS Inc 4 May 1971 [11 May 1970] 13092/71 Heading G2C  A thermographic material comprises a support having a heat-sensitive layer thereon containing (a) an arylamine (b) a compound of formula (R<SP>1</SP>) 4  N<SP>+</SP>NO 2 <SP>-</SP> or of formula wherein R<SP>1</SP> is hydrogen, an alkyl group with 1-6 carbon atoms, an aralkyl group with 7-10 carbon atoms or a cycloalkyl group with 4-8 carbon atom; the alkyl and aralkyl groups may be substituted and R<SP>11</SP> is an alkylene group of 3-7 carbon atoms which may contain a hetero atom in the alkylene chain, which on heating provides nitrosomium ions which diazotize (a), and (c) an azo coupler; neither the azo coupler nor the arylamine containing free acid groups which would cause premature coupling. This nitrite may be present as such or be formed in situ from an alkali metal nitrite and the appropriate amine salt of an acid e.g. salicylic acid. If such an amine salt is  used, the coupler (c) may be derived from the organic acid portion of the salt and no separate couples is necessary. The heat-sensitive layer may also contain an anti-oxidant (hydroquinone or phenothiazide), a pre-coupling inhibitor (sodium azide or an arylsulphinic acid) a binder or an ultraviolet absorber. The support is preferably polymeric and may be surbed with cellulose acetate butyrate before applying the heat-sensitive layer and optionally an overcoat of polyphenylese oxide and possibly an ultraviolet absorber. The material on imagewise exposure to heat produces an azo dye image.
Patent GB-691652-A (GB)
Title: Improvements in or relating to roll housings
IPC: B21B31/20
Filed: 1951-06-01
Abstract: 691,652. Rolling mills. MOELLER & NEUMANN GES. June 1, 1951 [June 13, 1950], No. 13096/51. Class 83 (iv). Hydraulic cylinders 8 for balancing the weight of the upper roll 3 of a rolling mill are arranged on the outside of the roll bearers 2 and serve as the pivotal axes of bearing blocks 12 between which the roll bearers 2 are vertically displaceable. The roll bearers 2 are vertically adjusted by an electrically-driven screw jack 1 and the weight of the roll 3 is balanced through rams 7 in the cylinders 8 which support a cross-head 6 connected to the bearers 2 by rods 5. The cylinders 8 are supported by lugs 9 and 10 cast on the frame pedestals 4 and are enclosed by integral sleeves 11 on the bearing blocks 12.
Patent GB-652476-A (GB)
Title: Improvements relating to methods of iodinating proteins
Filed: 1948-05-13
Abstract: A protein containing tyrosine in the form of a solution or suspension which is suitably alkaline, is iodinated by adding thereto iodine or an iodine salt and reacting the mixture in the presence of an oxidizing compound which contains chlorine, e.g. chloramine T or a hypochlorite salt.
Patent GB-133122-A (GB)
IPC: D06F75/26
Abstract: 133,122. Hinrichsen, A. J. M. Sept. 19, 1918. Electric hand-irons are provided with combined push-button and mercury switches for the purposes respectively of closing the circuit when the iron is in use, and of closing the circuit when the iron is turned up on end for primary or prolonged heating. The mercury 11 is contained in a vessel 1 fitted with tubular contacts 3 adapted to receive the pins of the plug, and when the iron is in upright position the mercury bridges the contacts. The push-button is carried by a rod 5 fitted at its lower end with a cylindrical piece 6 in such a way that, when the iron is in use, depression of the piece causes the mercury to rise in the vessel until it reaches the two contact tubes and so closes the circuit. To prevent escape of mercury through the opening 13 should the iron be turned upside down, the inside of the lid 2 is formed convex. A valveplate 10 upon the rod 5 allows for the escape of gas formed in the vessel. Piece 6 fits frictionally upon the lower end of the rod 5, and when the handle 12 of the iron has been detached the rod can be withdrawn from the veasel and more mercury poured in, the hollow 4 serving as a funnel.
Patent GB-238964-A (GB)
Title: Improvements in or relating to electric wall plugs and like fittings
IPC: H01R13/68
Filed: 1924-05-30
Abstract: 238,964. Reyrolle & Co., Ltd., A., Clothier, H. W., and Secretan, H. F. May 30, 1924. Fuse-boards.-A wall or like plug-and-socket fitting supplying two or more subsidiary circuits comprises a divided body of moulded insulating material the lower portion D of which is cavitied to contain a number of bobbins or blocks G', one for each pole of each subsidiary supply. Fuse wire G is wound in grooves on each block. Projections D<2> on a lid-like portion D<1> of the insulating body D press the projecting lids of the fuse wires upon contact members H, to which the coupling elements of the fitting are wired, when the casing of the fitting is closed.
Patent GB-1432233-A (GB)
Title: Catheter probe
IPC: A61B5/0265
Filed: 1973-03-20
Abstract: 1432233 Electrodes; measuring blood flow UNIVERSITY OF CALIFORNIA REGENTS OF 20 March 1973 [22 March 1972] 13344/73 Headings A5K and A5R [Also in Division G1] A probe comprises a resiliently deformable frame 17 having terminal connections which is collapsible for insertion into a body duct and expands when in said duct, and first and second electrodes El, E2 spaced on said frame so that when the frame is expanded within the duct the electrodes are positioned diametrically opposite each other in the duct. The frame may comprise a resilient insulated conductor, the electrodes El, being formed by removing part of the insulation and the electrode E2 being formed on a thin insulated conductor extending parallel to but spaced from the frame, part of' the insulation being removed to provide electrode E2. The frame may have a substantially hexagonal form. For determining blood flow the probe is used in conjunction with a magnetic field procided by a coil or cradle through which an alternating current is passed and within which a patient is located so that the field extends across the body duct in the vicinity of the electrodes. The voltage produced by the blood flow is picked up by the electrodes and transmitted to a flow detector and amplifier. Means are provided to compensate for changes in intereleotrode distance, variations in the magnetic field or for orientation of the frame with respect to the field. The probe may also be used to determine the diameter of the body duct or for atrial pacing.
Patent GB-777091-A (GB)
Title: Improvements in and relating to the spraying of liquids
IPC: F16N7/34
Filed: 1955-05-09
Abstract: 777,091. Spray-producers. CASWELL, R. J. May 9, 1955 [May 21, 1954], No. 13391/55. Class 69 (3). A device 18 for producing a mist of liquid particles is secured to an opening in a liquid containing vessel 10, and is supplied with compressed air at 50, and has an outlet line 52 which leads a liquid mist to an outlet nozzle (not shown). The body 22 of the device includes a plug 26 which is screwed into a socket 36 fixed in the vessel opening. A plug bore 56 is enlarged at the top to receive a needle valve 104, and is enlarged at the bottom to receive a tube 118 extending into the liquid. A tube 116 also extends into the liquid. The vessel is pressurized by closing the outlet line 52, and compressed air from the inlet 50 flows through passages 48, 92 to a bore 64, and then downwardly and through a passage 96 to an annular groove 88. From the groove 88 the compressed air passes through a passage 94, a bore 72, and then past a valve 80 to a passage 122 and the space between the tubes 116, 118, and bubbles upwardly through the liquid. Compressed air also flows up the bore 64 and into the bore 56 via the needle valve, and then passes downwardly through the tube 116 into the liquid. To effect spraying the outlet line is opened and liquid flows upwardly through tube 116 and bore 56 where it meets, at the inlet end of a passage 90, compressed air flowing downwardly. A partial atomization is effected at this point and the mixture flows through the passage 90 to the outlet end thereof where it is met by compressed air flowing round annuli 82, 84. A filter 124 is provided together with an air bleed 126 which prevents an excess of pressure building up within the filter.
Patent GB-634515-A (GB)
Title: Improvements in fabric winding apparatus
IPC: B65H23/02
Filed: 1947-05-19
Abstract: 634,515. Winding fabrics. BRITISH CELANESE, Ltd. May 19, 1947, No. 13411. Convention date, May 23, 1946. Addition to 571,493. [Class 42 (ii)] In a fabric-winding apparatus having an oscillating guide roll as in the parent Specification, the axis of rotation of the roll is arranged to oscillate about a point between the ends of the roll, and adjustable means is provided whereby the roll can be oscillated to a predetermined extent. As shown, a support 6 carrying guide-roll 2 is pivoted at 9 to a fixed support 12. Roll 2 drives, through worm 17 and worm-gear 18 a shaft 19 carrying a crankmember 23 pivotally connected by a link 29 to a fixed arm 31. The shaft 27 by which link 29 is pivoted to crank 23 is out of line with shaft 19, so that rotation of roll 2 causes an oscillation of the roll and its support 6 about pivot 9, thus staggering the selvedges as the fabric is batched on a take-up roll. The extent of the oscillation is controlled by adjustment of the position of shaft 27-in a slot 25.
Patent GB-1306845-A (GB)
Title: Boiler
IPC: F24H1/32
Filed: 1970-03-20
Abstract: 1306845 Sectional boiler STREBELWERK GmbH 20 March 1970 [20 March 1969] 13466/70 Heading F4A A sectional boiler comprises sections, Fig. 2, having annular heat carrier ducts 4, 5, 6 which define annular combustion gas ducts 16, 17; combustion gas ducts of one section communicating directly with gas ducts of an adjacent section, but the heat carrier ducts of one section, which are joined by radial passages 3, 13, are connected to the heat carrier ducts of an adjacent section only through communicating bosses 1, 2. In use the sections form a boiler, Fig. 1, in which combustion gases flow from the combustion chamber 15 through gas ducts 16, 17, using heat deflecting chambers 31, 32, to an exhaust gas collector 33.