baber/WOPTO huggingface dataset:
Patent GB-694961-A (GB)
Title: Improvements in or relating to the conversion of phenanthrene to anthracene
Inventor: BORROWS EDWARD TEGGIN
IPC: C07C7/17
Filed: 1950-05-15
Abstract: Phenanthrene is converted to anthracene by a process which p comprises the steps of hydrogenating phenanthrene to sym.-octahydrophenanthrene, isomerizing the latter at a temperature of 5 DEG  to 45 DEG  C. in the presence of dispersed, finely-divided aluminium chloride as isomerization catalyst to form sym.-octahydroanthracene and dehydrogenating the latter to form anthracene.  The invention also consists in a process for the isomerization of sym.-octahydrophenanthrene to sym.-octahydroanthracene in which the isomerization is carried out in the presence of dispersed finely-divided aluminium chloride as isomerization catalyst within the temperature range of 5 DEG  to 45 DEG  C., preferably between 15 DEG  and 35 DEG  C.  Up to about 10 per cent of by-product formed in a previous isomerization reaction may be added to the isomerizing material.  The hydrogenation of phenanthrene may be carried out in the presence of a nickel catalyst under pressure and at 100-150 DEG  C. whilst the dehydrogenation of sym.-octahydroanthracene may be carried out in the presence of a palladium or platinum catalyst at atmospheric pressure or below and at a temperature between 300 DEG  and 350 DEG  C. The sym.-octahydrophenanthrene may be purified before subjecting it to the isomerization step and this may be effected by fractional distillation or the hydrogenation product may be purified by sulphonation and conversion of the sulphonic acid formed to a sulphonate which is crystallized out and desulphonated.  The sulphonation may be effected with concentrated sulphuric acid at 70 DEG  C. and the sulphonic acid dissolved in water and converted to the sodium sulphonate with caustic soda.  The sulphonate is then precipitated with saturated sodium chloride solution and the precipitated salt desulphonated by hydrolysis with boiling aqueous sulphuric acid or by heating with an excess of concentrated hydrochloric acid at 160 DEG  to 180 DEG  C. for 6 to 8 hours in a corrosion-resistant vessel closed to the atmosphere. Sym.-octahydroanthracene may be recovered from the isomerization step by dissolving the product in an organic solvent such as toluene and immediately hydrolysing the metal chloride complex with dilute hydrochloric acid and washing, drying and fractionally distilling the toluene layer to yield a C14 fraction which on filtration and pressing or on centrifuging yields the almost pure hydrocarbon. Either the latter or the C14 fraction may be submitted to the dehydrogenation.  The isomerization step is preferably carried out with anhydrous aluminium chloride in an amount of 2.5 to 5 per cent by weight of the sym.-octahydrophenanthrene and for a period of from 10 to 24 hours.  Examples are given.
Patent GB-720947-A (GB)
Title: Improvements in or relating to methods of manufacturing cathode-ray tubes comprisinga glass cone and a glass window
IPC: C03B23/025
Filed: 1953-05-01
Abstract: 720,947. Making cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 1, 1953 [May 5, 1952], No. 12129/53. Class 56 In the making of a cathode-ray tube wherein the window 3 and/or the cone 4 are each formed by causing a glass plate to sag into a mould 1, 2, the edge of the plate being clamped by a ring 5, 6 and the glass being finally pressed into the .mould by a die in order that a butt joint may be formed between window and cone, after the glass has sagged, but before the dies are inserted the clamps are removed and the glass edges are heated so that, on insertion of the dies, the edges are forced upwards along the sides of the die. The mould parts are then brought together about their hinges 12, 13 and the tube parts are welded together as shown in Fig. 3.
Patent GB-1168617-A (GB)
Title: Improvements in or relating to Cutter Picks.
Inventor: PROCTOR SIDNEY ERNEST
IPC: E21C35/18
Filed: 1966-03-18
Abstract: 1,168,617. Mineral-mining picks. AUSTIN HOY & CO. Ltd. 24 Feb., 1967 [18 March, 1966], No. 12136/66. Heading E1F. A forward attack coal cutter pick has a shank extending substantially at right angles to an arm 10 extending forwardly of the shank when the shank is secured in a holder 16 and terminating in a cutter tip 11 that is wider than the arm. Preferably the tip, arm and shank are so formed as to be symmetrical about a common plane.
Patent GB-343813-A (GB)
Title: Improvements relating to mangles, wringing machines and other like roller machines
IPC: D06F1/00
Filed: 1930-04-17
Abstract: 343,813. Mangles and wringers. BAKER, B. H., Wollescote Road, Wollescote, Stourbridge, Worcestershire. April 17, 1930, No. 12176. [Class 138 (ii).] A stand for a mangle, wringer, or other roller machine comprises an upright frame a forming the major part of the stand and to which are pivoted a base frame g at g<1> and the roller frame d at c. Extensions l of the roller frame are connected to the base frame by struts f sc that when the stand is folded compactly the base frame swings upwardly through about 90‹ and the mangle frame swinge downwardly through about 180‹. A shelf i is pivoted to the upright frame and may rest upon a cross-bar carried between the struts f, as shown. The end of the shelf may be linked to the base frame. The roller frame is locked in the operative position by a screw b.
Patent GB-1044912-A (GB)
Title: Photographic camera
IPC: G03B15/04
Filed: 1963-03-28
Abstract: 1,044,912. Photographic cameras with built-in flashlight. EASTMAN KODAK CO. March 28, 1963 [March 28, 1962], No.12307/63. Heading G2A A photographic camera having a lamp socket for releasably securing a flash bulb in firing position has means for indicating in the field of the view finder when an unfired lamp is in the socket and the camera is ready to make a flash exposure. In one embodiment, the view finder has a lens 10, Fig. 1, an opaque mask 12, an eyepiece lens 14, and a transparent movable mask 56 carrying the words "flash" and "daylight". When no lamp 16 is present in socket 18 member 52 is rotated clockwise about pivot 54 to move the mask into a position in which the word "daylight" is visible. When a bulb 16 is inserted in the socket 18 the mask 56 is moved to bring the word "flash" into view. Acutation of a shutter release 58 causes arm 66 to rotate member 52 counter clockwise to return mask 56 to the "daylight" position. To eject a lamp, a lip 26 is raised out of engagement with the lamp by depressing lamp ejector 42. In another embodiment a diaphragm plate 166, Fig. 3 (not shown) is connected by a link 76 to member 52<SP>1</SP>. The plate 166 has apertures 70 and 72 movable into alignment with camera lens 74, such that the larger aperture 70 is aligned with the lens 74 when mask 56<SP>1</SP> is in raised "flash" position and the smaller aperture is aligned with the lens when mask 56<SP>1</SP> is in the lower "daylight" position.
Patent GB-669520-A (GB)
Title: Improvements in and relating to regulators for alternators
IPC: H02P9/36
Filed: 1948-05-05
Abstract: 669,520. Automatic voltage control systems; exciting dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd. May 5, 1948 [May 6, 1947], No. 12400/48. Classes 35 and 38 (iv). In a system involving the automatic regulation of the field excitation of an alternator, reduction of field excitation below a predetermined value is prevented by means which change the excitation upon the occurrence of a predetermined value of alternator reactive power. In Fig. 1 the voltage of a three-phase alternator 4 is normally maintained constant by a regulator 9<SP>1</SP>, responsive to alternator voltage through a transformer 10 which controls the energization of a control field 11 of an amplidyne generator 8 which, in turn, controls the energization of a field winding 7 of an exciter 5 energizing alternator field winding 6. An anti-hunt transformer 12 is provided and the regulator may include a positive phase sequence network. The outputs of a potential transformer 16 and a current transformer 21 are so combined that normally the output voltage of a rectifier 26 is greater than or equal to the output voltage of a rectifier 25 and no current flows between the two rectifiers but when the leading reactive power exceeds a predetermined value the output of rectifier 25 is the greater and, by virtue of a resistor 27, current flows through the D.C. winding 28 of a saturable reactor 29 so that the energization of a second control winding 13 of amplidyne 8 which is normally negligible, increases to prevent decrease of alternator excitation below a predetermined value above that at which the alternator would lose synchronism with the system to which it is connected. A reactor 23 ensures that the predetermined value of reactive power at which the lower limit of alternator excitation is reached varies with the true power in the same manner as the reactive power at which the alternator loses synchronism varies with the real power when load impedance is appreciable.
Patent GB-1300151-A (GB)
Title: Back hoe or grader
IPC: E02F3/43
Filed: 1970-03-16
Abstract: 1300151 Scoop-arm machines HOPPER Inc 16 March 1970 [19 March 1969] 12514/70 Heading E1F A back hoe or grader 10 comprises a boom 15, a dipper 18 carrying a work implement 21, a ram 23 for moving the boom, a ram 25 for moving the dipper, and a control mechanism 50 including cams 65, 66, 67 cooperating with pilot valves 70, 74 carried by arms 51, 52 and a carrier having lengths respectively corresponding to the boom, the dipper and levers 20 of the implement 21 and moved in accordance with movement of these members. The ram 23 is mounted between the boom 15 and a pivoted sub-frame 30 moved by rams 31. The implement 21 includes a bucket 36 moved pivotally in two planes relative to the levers 20 by rotary hydraulic devices 39, 41, and links 44 connect the levers 20 to the boom 15, the point of interconnection of the links to the boom being adjustable relative to pivot 17 of the dipper to the boom. The links 44 have their counterpart in an arm 53 of the control mechanism. The arm 51 corresponding to the boom 15 is moved through a chain and sprocket drive 62, 77, 78, the sprocket 78 being rotated by an arm 80 moved by the boom 15 and having a pin which engages an arm 82 adjustably moved about the axis of the sprocket 78 by a ram 84. The movement of the dipper 18 effects movement of the arm 52 through hydraulically interconnected rams 90, 94. The cam 66 is adjusted by a motor 104 through sprocket and chain drives 105 to 108 operating nut and screw drives.
Patent GB-116416-A (GB)
Title: Improvements in or relating to Unloading or Discharging Devices.
Inventor: CRAYMER HENRY JAMES
IPC: B60P1/36
Filed: 1917-08-31
Abstract: 116,416. Craymer, H. J. Aug. 31, 1917. Vehicle fittings and attachments.-A conveyer for use on vehicles, unloading platforms, wharves, &c. comprises a series of slats g, h, i, j, k, l, with overlapping ends p which are connected by links u and arranged to fold at the end of the run as shown in Fig. 5. The slat l is connected to two sets of cables 5, 10 which are wound oppositely on drums rotated through gearing by the handle 19, and when the conveyer is used on a vehicle, the slat g is connected to the tailboard b by pivoted links t. Adjacent slats are connected by hooks y in the folded position. In order to minimize manual lifting, shells, boxes, &c. may be lifted on to the slats when in the position shown in Fig. 5 and retained by pivoted arms 23, Fig. 6, maintained upright by springs 24. When the slats have been drawn into the vehicle, the arms 23 are turned down into cavities 22.
Patent GB-592107-A (GB)
Title: Artificial teeth and anchors therefor
IPC: A61C13/10
Filed: 1945-05-18
Abstract: 592,107. Artificial teeth. BREYER, J. May 18, 1945, No. 12560. [Class 81 (ii)] An anchor for artificial teeth comprises curved prongs 10 and a stem 13 adapted to occupy grooves in the tooth, and an anchoring pin 15 projecting from the juncture of the prongs, and adapted to extend into the tooth and having the same degree of upward curvature as the prongs. The stem may be formed integral with the plate, or may be affixed to an existing plate in repair work.
Patent GB-789219-A (GB)
Title: Improvements in coupling devices for mine gallery and like yieldable arched supporting structures
IPC: E21D11/22
Filed: 1954-04-30
Abstract: 789,219. Mine gallery supporting arches. LINSINGEN, M. VON, [trading as BOCHUMER EISENHUTTE-HEINTZMANN & CO.]. April 30, 1954 [May 4, 1953; Jan. 23, 1954], No. 12602/54. Class 20(2) Mine gallery supporting arches of overlapped parts 2, 3 are clamped together by a stirrup 4 and transverse wedge 6 engaging the arch part 3 and the stirrup 4 which is carried along by the arch part 2 as the arch parts telescope under mine roof pressure and turns the wedge on a transverse axis which increases the clamping pressure. The stirrup 4, Fig. 2 is a rectangle of rod bent into a V-shape in the apex 8 of which the wedge rests and the cross bars 14 of which engage the arch parts at the opposite side to the wedge by means of notches 17 to secure its movement with the arch part 2. The wedge 6, which is tapered from one end to the end carrying a stop 15, is of triangular cross section the edge 6a at the acute angle of which rests in the apex 8 of the stirrup and the face 9 opposite this angle is curved and roughened and engages the arch part 3. The side 10. of the wedge is of greater height from the edge 6a to the surface 9 than the side 11 so that the surface 9 is eccentric to the edge 6a so as to provide the increase in clamping pressure as the wedge pivots about the edge 6a. The arch parts 2, 3 are of channel section. In a modification the surface 9 is roof-shaped having two flat surfaces at an obtuse angle and the edge 6a has two wedge surfaces in tandem as shown in a further modification Fig. 7 in which each wedge surface 'has two parts 6c, 6d of different inclination. Each wedge surface engages one of the links of the stirrups. One of the cross bars 14 may be replaced by hooks engaging over the flanges of the arch part 2. Two separate wedges may be used in place of one wedge 6. The stirrup may be replaced by a sleeve.
Patent GB-790236-A (GB)
Title: Improvements in extrusion machines for use in cubing or pelleting animal and poultry feeding stuffs
Inventor: NORMAN GEOFFREY BERTRAND
IPC: B30B11/20
Filed: 1955-04-30
Abstract: 790,236. Extruding animal foodstuffs. SIMON, Ltd., H. April 11, 1956 [April 30, 1955], No. 12602/55. Class 87(2). In a roller-and-ring or roller-and-plate machine for extruding animal foodstuffs through dies and then breaking the extruded material into cubes or pellets the die apertures are of a special shape, each die aperture comprising, Fig. 3 (which illustrates a roller-and-ring machine, the roller being d and the ring c) a cylindrical non- tapered preforming chamber k and a cylindrical extrusion section m. The chamber k is larger in cross-sectional area than the section m, and the peripheral length of its wall is 15-33 per cent greater than the peripheral length of the wall of section m. The axial length of the section m is 1À5-6 times its diameter. As shown, a tapered part o joins chamber k and section m, and the portion of the die aperture following section m is opened out to form a delivery section n having a cross-sectional area not greater than that of chamber k. Fig. 6 shows the invention applied to a roller-and-plate machine, the rollers d (which may be four in number) revolving freely on stationary arms and the die plate c is a flat annulus revolving about a vertical axis. As shown, the die apertures are inclined forwardly. In modifications (a) the die apertures of Fig. 3 may be inclined forwardly, as in Fig. 6 ; (b) in the Fig. 6 machine the die-apertures may extend normally, as in Fig. 3 ; (c) the annulus c of Fig. 6 may be stationary, the rollers d being driven in a circular path over its surface. Fig. 7 shows details of the Fig. 3 machine, which comprises two rollers d, e (which may have fluted peripheral surfaces) adjustably journalled on stationary eccentric spindles r within a rotating housing which carries the die ring c.
Patent GB-528100-A (GB)
Title: Apparatus for making hot beverages
IPC: A47J31/52
Filed: 1939-04-27
Abstract: 528,100. Making hot beverages. THORNTON, W. H. B. April 27, 1939, No. 12643. [Class 129] Apparatus for making hot beverages at a predetermined time comprises a time switch to close the circuit to an electrically heated boiler on a hinged platform supported by a weighted linkage operating a switch so that when the water is ejected and the platform rises the heater is cut off. The mechanism is adjustable for different quantities of water. A three-armed lever on a fulcrum 12 supports the platform 2 by an arm 19 which has a roller 20 cooperating with a pip 21. An arm 15 is connected by a slot 18 to a bell crank lever 16 operating the switch 2 which is biased towards the open position by a spring 25 ; by adjusting the switch base 22 longitudinally the point of action on the arm 15 is moved along the slot 18 whereby the apparatus will be adjusted for different quantities of water. The apparatus is made ready by raising the arm 13 so placing the arm 19 to the left of the pip 21 and retracting the plunger 10 of the time switch by a wedge link 28, it being noted that the arm 13 will return until the roller 20 engages the pip 21 at the left hand side and so will allow the link 28 to descend. When the predetermined time as set on the clock is reached the plunger 10 moves, inward to close the time switch and start the apparatus.
Patent GB-1213716-A (GB)
Title: Purification of phosphonitrilic chloride polymers
Inventor: MAUND JAMES KEITH
IPC: C01B21/098
Filed: 1968-03-15
Abstract: 1,213,716. Phosphonitrilic chlorides. ALBRIGHT & WILSON (MFG) Ltd. 13 March, 1969 [15 March, 1968], No. 12671/68. Heading ClA. A mixture of phosphonitrilic chloride polymers is selectively purified by contacting the mixture with a stream of an inert solvent vapour in such a way as to selectively vaporize the cyclic trimer, separating the vapour, containing trimer and some tetramer, from the residue, condensing to form a solution and recovering trimer together with some tetramer from the solution. The inert solvent may be that which has been used as a reaction medium in the preparation of the polymers, and is preferably a chlorinated hydrocarbon boiling at 100 to 150 C. at atmospheric pressure, especially monochlorobenzene. The mixture is preferably maintained at a temperature below 140 C., and may be contacted countercurrently with solvent vapour which has been superheated to 110-140 C. at a pressure of 40-60 mm. Linear polymers may be previously removed from the mixture by heating the solution of the mixture in the inert solvent under reflux in the presence of an absorbent medium such as active carbon and then cooling and filtering. The ratio of inert solvent to polymer is preferably between 3.3 and 4-3 moles of solvent per mole (theoretical yield) of polymer in the feed. The trimer and tetramer may be recovered from the solution by evaporation of the solvent, or the solution may be concentrated and substantially pure trimer crystallized out.
Patent GB-252369-A (GB)
Title: Improved process for the manufacture of oleomargarine
IPC: A23D7/02
Filed: 1926-05-18
Abstract: 252,369. Leroudier, H. May 20, 1925, [Convention date]. Butter substitutes.- In the manufacture of oleomargarine an intimate mixture consisting of fats or oils, e.g. peanut oil and cocoanut oil, suspended in a great quantity of water is added to the prinicipal mass consisting of the fatty substances, e.g. pressed beef juice and cocoanut oil, either pure or emulsified with a small amount, such as 5 per cent, of water. The added mixture has a larger proportion of water than of fats and the quantity used may amount to 25 per cent of the principal mass. The addition is made during churning, or after the principal quantity has formed into a mass, or drop by drop during the crushing operation. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of milk emulsified with oil and grease to replace removed fatty matter. This subject-matter does not appear in the Specification as accepted.
Patent GB-359891-A (GB)
Title: Thermo-electrical method of controlling the action of electromagnets
IPC: H01H47/26
Filed: 1930-04-24
Abstract: 359,891. Electromagnetic switches. KULIKOWSKY, E. A., 15, Petrovka N., Moscow, Russia. April 24, 1930, No. 12710. [Class 38 (v).] In a telegraphic or other signalling circuit the windings of a relay c are placed in series with one or more metallic filament incandescent lamps a, b in a circuit, including a key k and a source of current. The voltage of this source is such that if the circuit is opened at the key for a time less than a predetermined period, owing to the insufficient cooling of the lamps the resistance in series with the relay will be too great to allow operation when the circuit is reclosed. If, however, the circuit remains open for a greater time than this period the resistance of the lamps will have decreased sufficiently to allow a current in excess of that required to produce operation of the relay to flow in the coils thereof when the circuit is again completed.
Patent GB-707574-A (GB)
Title: Improvements in water sprinkler devices
Inventor: SHANN ROBERT ALPHONSUS
IPC: A01G25/02
Filed: 1951-05-30
Abstract: 707,574. Crop-sprayers; nozzles. HYDROTHERMAL, Ltd. May 28, 1952 [May 30, 1951], No. 12733/51. Class 69 (3) A portable sprinkler comprises parallel sprinkler tubes 2, Fig. 1, and a cross-connection 4 providing a U-shaped tubular formation with closed ends adapted to lie horizontally on or in close proximity to the ground, and is supplied with water from a union 6 and via a control tap 7. The tubes 2 may have one or more rows of outlets 9 of the same or different size, and each tube may be slightly rotatable to vary the discharge angle. In Fig. 2 the tubes 2 include supports 10, 11 and have nozzles 12, Fig. 3, each with an outlet slot 13 to deliver a flat spray spaced therealong. The unions 8 of Figs. 1 and 2 may be replaced by T-unions 15, Fig. 4, and one or more sections 16 with unions 8 for tubes 2. The arrangement of Fig. 2 may be duplicated to provide two sets of spaced tubes, one above the other, with a common inlet and control tap for each set of tubes. Each tube may have a control tap, and the supporting means may be adjustable to vary the tube height. The connection between sprinkler tubes at the same level may be telescopic.
Patent GB-167302-A (GB)
Title: Improvements in or relating to adjustable supporting brackets particularly adapted for adjustably supporting shelves and the like in show cases, shop windows, and similar positions
IPC: A47F3/12
Filed: 1920-05-07
Abstract: 167,302. Waldteufel, H. L. G., and Gotzen, V. P. D. de. May 7, 1920. Brackets, adjusting and securing.-A bracket for shelving &c., adjustable vertically without tilting and adapted to support shelves &c. on each side of its vertical support, comprises main and auxiliary frames a, o connected by a spring or springs p, both frames embracing and slidable on the vertical support e and a cam r pivotally mounted on the auxiliary frame and drawn up normally in such a position that a nose thereon bears against the main frame and the cam-surface bears against the vertical supporting-rod. The main frame a having a hook portion f in which is carried a rod g, to receive various forms of brackets, is adjustably supported on the vertical rod e by the cam r pivotally connected to the auxiliary frame o which frame is connected by spring p to the frame a. When the bracket is out of reach the tail u of the cam r is actuated by means of the rod 11 which may be separated from or connected to the bracket. A second rod g<1> may be carried by the slidable bracket 28 or by means of vertical rods 24 extending from the rod g.