baber/WOPTO huggingface dataset:
Patent GB-812857-A (GB)
Title: Improvements in bar loading devices for automatic lathes
IPC: B23B13/00
Filed: 1957-03-06
Abstract: 812,857. Lathe details. MANUFACTURE DE MACHINES DU HAUT-RHIN. March 6, 1957 [April 25, 1956], No. 7466/57. Class 83 (3). In an attachment for loading bars into single-spindle automatic lathes having feed jaws for advancing the bar, a reciprocating gripper forces the bar through the feed jaws. A slide 8, Fig. 2, mounted on a bracket 7 attachable to a lathe 1, is vertically adjustable by a hand wheel 11 and screw 9. Longitudinally slidable carriages 12, 13, Fig. 4, carried by the slide 8, are coupled by rods 22 connected to carriage 12, and having slots 23 engaging studs 24 in carriage 13. Levers 25, pivoted to carriage 13 at 13<SP>1</SP>, have rollers 26 engaging depressions 27 in the rods 22, and also engage grippers 28, which, slidable in carriage 13, grip the work-bar 2. A roller 14, Fig. 2, on the carriage 12, engages a groove 15 of a cam 16 mounted on the slide 8 and driven by worm gears 18, 19 and a motor 21, not shown, to reciprocate the carriage 12. The bar 2 is supported by rollers 37, Fig. 6, vertically adjustable by sleeves 44 in pedestals 3, 3A, Fig. 1, and is guided by members 38 on hinged covers 39. Vibrations of the bar are absorbed by rubber cushions 42, 43. In operation, a bar 2 is passed through a sleeve 31 on the carriage 12, by hand until it contacts the feed jaws 5 of the lathe, Fig. 1. The motor 21 is started and the carriage 12 is moved to the right, the movement being resisted by spring- urged studs on the slide 8. The rollers 26 on levers 25, rise from the cammed portion 27 of rods 22 and the grippers 28 clamp the bar 2, and thus cause the carriages 12, 13 to move together and feed the bar 2 through the jaws 5. Continued rotation of cam 16 returns the carriages 12, 13. The vertical displacement of the slide 8 allows access to the lathe for replacement of feed jaws 5 &c. Alternatively, the bracket 7 may be pivoted to the lathe about a vertical axis to allow displacement of the attachment. In a modification, not shown, slide 8 and carriages 12, 13 may be fluid-operated.
Patent GB-476672-A (GB)
Title: Improvements in and relating to the production of colour photographic picture films having sound tracks
IPC: G03C7/24
Filed: 1936-03-12
Abstract: 476,672. Combined colour picture and sound films. GROVES, W. W. (I. G. Farbenindustrie Akt.-Ges.) March 12, 1936, No. 7479. [Class 98 (ii)] Combined colour picture and sound films in which the film comprises several superimposed silver halide layers containing colour formers which produce colour by reaction with the oxidation product of the developer and which are fast to diffusion, are produced by treating the picture area and sound track separately in one or more of the operations following exposure to produce pictures in colour and a sound track which is non-transparent to infrared rays. Alternatively, both the pictures and sound record may be formed of dyes opaque to infra-red in which case separate treatment is not necessary. The sound track may be formed of silver, of a complex metal compound, of dye, or of both silver and dye. Where the sound track is of silver this may be subjected to toning. Suitable dyestuff components arc those specified in Specifications 458,400, 465,823, and 479,838. Examples of suitable dyes are p - capronylaminobenzoyl - acetylamino salicylic acid, 1 - hydroxy - 2 - carboxy- 5 -dodecoylaminonaphthalene, and 1 - (4<1> - oxy- 31 - carboxyphenyl) - 3 - (4" - dodecoylamino)- phenyl - 5 - pyrazolene. In carrying out the process, the sound track may be varnished after the first development of a reversal process, e.g. as described in Specification 468,946, so as to leave a negative track in black silver, or where the positive is produced by printing from a negative, the track may be varnished after development and before bleaching the silver from the picture, leaving a sound track in silver and dye. In place of varnishing the track, the film may be developed in a bath in which the film is only immersed sufficiently for the development of the pictures. Where the sound track has been formed of dye, this may be subsequently treated with a metallic salt, e.g. of iron, chromium, or copper, to form a complex compound of metal and dye. The silver in the track may also be toned, e.g. with a blue toning bath of potassium ferricyanide, ferric ammonium citrate and acetic acid before removal of the silver from the picture area. In the case of a reversal process, the sound track may be toned after the first development. A sulphide toning bath may also be used. Specification 2562/13, [Class 98 (ii)], also is referred to.
Patent GB-303300-A (GB)
Title: Process and device for burning heavy oils
IPC: F23C99/00
Filed: 1928-03-10
Abstract: 303,300. Osthoff, W. March 10, 1928. Baffles. - A mixture of fuel vapour with cold or only slightly preheated air iis discharged through a water jacketed nozzle 1<c>, Fig. 1, or perforated tube 1, Fig. 4, at such a velocity that it does not burn until it impinges on an incandescent body 15, Fig. 1, or bodies 3, 3a, Fig. 4, in the combustion chamber.
Patent GB-798843-A (GB)
Title: Wheel type trenching machines
IPC: E02F3/24
Filed: 1956-03-09
Abstract: 798,843. Earth-excavating apparatus. KOEHRING CO. March 9, 1956 [March 11, 1955], No. 7508/56. Class 68(1) In a bucket wheel trench excavator the wheel 11 is rotatably mounted on a cantilever beam 16 pivotally mounted at 42 on a carriage 15 that can be slid along a mast assembly by an hydraulically actuated jack 24, 25. The mast assembly is secured by pivots 36 to the chassis 10 of a vehicle and can be rotated about said pivots 36 by a double acting, hydraulically actuated jack 26, 27 extending between a cross beam 14 rigidly connecting the upper ends of the I-section beams 13 of the mast assembly and the chassis 10. The jack 24, 25 is pivotally connected to a cross beam 44 rigidly connecting the lower ends of the beams 13 and a beam 47 slidable within the inwardly facing channels of the beams 13. On the beam 47 are rotatably mounted rigidly interconnected gear wheels 53 over which pass chains 55 secured to an intermediate beam 46 rigid with the beams 13 and to the beam 16 at 57. Thus movement of the beam 47 cause twice said movement of the carriage 15. The outer end of the beam 16 is supported by spring-biased tension means 17, 94, 97. A bucket cleaning assembly 22 is held by spring means on the beam 16 unless it encounters an exceptional resistance which causes the assembly to be swung clear of the bucket which it has entered.
Patent GB-884548-A (GB)
Title: Improvements in the production of alpha, beta-unsaturated nitriles
Inventor: STILZ WALTER
IPC: C07C255/34
Filed: 1960-03-03
Abstract: The invention comprises (1) the compounds alpha - cyclohexylidenyl - cyclohexylidene aceto - nitrile, 1,1-dimethoxy-2-methyl-3-cyano-propene(2), p gamma-tetrahydrofuramyloxy-beta-methylcrotonitrile and 1,4-bis-(21cyano-propen-(11)-yl-(11))-benzene; and (2) the preparation of these and other alpha, beta-unsaturated nitriles containing optional halogen, alkoxy, hydroxyl, nitro, amino, carboxyl, carboxylic ester and acyloxy substituents by reacting a phosphonate or phosphinate of the formula <FORM:0884548/IV (b)/1> in which R1 is an aliphatic, cycloaliphatic or araliphatic radical attached to the phosphorus atom by way of an oxygen atom, R2 has the same meaning as R1 and may also be an aliphatic, cycloaliphatic, araliphatic or aromatic radical attached to the phosphorus atom by means of carbon atom, or in which R1 and R2 may also be common members of a heterocyclic ring carrying optional substituents and containing the phosphorus atom and two oxygen atoms directly attached thereto, R3, R4 and R5 are hydrogen or C1-4 alkyl radicals and n is 0, 1, 2, 3 or 4, with a carbonyl compound in the presence of a proton acceptor.  The carbonyl compound may be an aliphatic, aromatic or heterocyclic aldehyde or ketone.  Suitable proton acceptors are alkali or alkaline earth metal hydroxides, alcoholates or amides, strongly basic amines or basic ion exchange resins.  The reaction may be conducted in water or an inert organic solvent.  Phosphinates and phosphonates of the above general formula may be prepared by reacting halonitriles with a phosphinate or phosphorous acid ester, respectively.
Patent GB-380097-A (GB)
Title: Improvements in and relating to mercury vapour rectifiers
IPC: H01J13/48
Filed: 1931-03-11
Abstract: 380,097. Mercury-vapour rectifiers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and WHITAKER, F. P., 237, Clifton Road, Rugby. March 11, 1931, No. 7516. [Class 39 (i).] An anode shield is so constructed that a part of the arc passes over deionizing surfaces situated at the sides of the anode and a part of the arc passes over deionizing surfaces of the same order of magnitude situated below the anode, the length of the surfaces in the direction of the arc being greater than the thickness thereof. A shield comprises a number of radial fins 3 which are secured to a cylindrical member 4 and are provided with extensions located below the anode. The fins may be bent, Fig. 3, to protect the anode from mercury splashes. The deionizing effect may be increased slightly towards the top of the shield. Specification 344,388 is referred to.
Patent GB-959162-A (GB)
Title: Process for the manufacture of acetals and acids from esters
IPC: C07C51/09
Filed: 1963-02-25
Abstract: Acetals and carboxylic acids are obtained by heating carboxylic acid esters with formaldehyde in the presence of acidic catalysts. Suitable acidic catalysts are, for example, sulphuric acid, hydrochloric acid, phosphoric acid, p-toluene sulphonic acid and cation exchangers. Examples are given of the conversion of (a) methylacetate to methylal and acetic acid; (b) b -methoxypropionic acid methyl ester to b -methoxypropionic acid and methylal, (c) b -ethoxy propionic acid ethyl ester to formaldehyde diethylacetal and b -ethoxy-propionic acid; and (d) n-decanoic acid methyl ester to n-decanoic acid and methylal.
Patent GB-557269-A (GB)
Title: Improvements in and relating to garden cloches or portable greenhouses
IPC: A01G13/04
Filed: 1942-06-03
Abstract: 557,269. Horticultural frames. CRAWFORD, J. H. D. June 3, 1942, No. 7548. [Class 20 (i)] A portable garden frame comprises a ridge piece a formed of two different sized channel sections b screwed together to provide recesses for the upper edges of inclined glass sheets, channel section side bars h to receive the lower edges of the side sheets and end frame member with supports i<SP>1</SP> and clips i<SP>2</SP> for the panel adapted to be secured to the ridge and side members, the ridge piece and side channels being formed with duplicate parallel and adjacent recesses e, f so that the glass sheets g may be slidden over each other to provide ventilation. The frames may be disposed end to end, so that the sheets may be slidden from one frame to the adjacent frame.
Patent GB-1153847-A (GB)
Title: Navigational Computing System
Inventor: RICHARDSON DONALD WILFRED
IPC: G06F19/00
Filed: 1968-02-15
Abstract: 1,153,847. Navigation. HUGHES AIRCRAFT CO. Feb. 15, 1968 [March 27, 1967], No.7561/68. Heading G1F. A navigational computing system comprises an electrical circuit connected to a timer to indicate a remaining time enroute for a vehicle on a course between the momentary position of the vehicle and a first destination point, a further electrical circuit connected to an input for entering new vehicle course data corresponding to a substituted second destination point, the arrangement being such that the new data for the second destination point is directly substituted for the data for the first destination point when the remaining time enroute is greater than a first value e.g. five minutes, otherwise the new data is stored until the remaining time enroute reaches a second valve e.g. one minute whereupon the new data is entered and the first destination point is utilized a new starting point. Thus, if an aircraft is flying on a course to a first airfield and is diverted to a second airfield the computing system will compute the course to the second airfield unless the aircraft is only five minutes away from the first airfield whereupon it will store the second airfield data until the aircraft is within one minute from the first airfield when this will be used as a new starting point for the course to be flown to the second airfield. The system is also intended to be used for aircraft flights which consist of a series of great circle courses dividing the flight into sections so that data for the next section can be entered near the end of each section. Warnings to the operator are given if new destination data have not been entered within five and one minutes flying time from the destination previously entered.
Patent GB-1398972-A (GB)
Title: Heterocyclic phosphorus compounds
IPC: C10M159/12
Filed: 1972-02-18
Abstract: 1398972 Lubricants EDWIN COOPER & CO Ltd 14 Feb 1973 [18 Feb 1972] 7582/72 Heading C5F [Also in Division C3] Lubricating oil compositions comprise as dispersants heterocyclic phosphorus mono-, di- or polyesters prepared by reacting (1) a di- or polyol (or derivative thereof capable of yielding the di- or polyol or hydrolysis) with (2) a polyolefin phosphinic acid prepared by reacting an olefinically unsaturated olefin polymer containing at least 50 carbon atoms with a phosphorus trihalide in the presence of a Friedel-Crafts catalyst and reacting the product with a hydroxy compound. The mono-, di or polyesters may be further reacted with dicarboxylic acids, or anhydrides or alkyl esters thereof, and optionally further polyol. Suitable derivatives of the di- and polyols are monoethers, oxides, oxetanes and carbonates. Many suitable reactants are specified and examples describe lubricating compositions comprising dispersants prepared by reacting polypropenyl phosphinic acid with (1) trimethylol propane oxetane, (2) trimethylol propane and trimethylol propane oxetane, (3) pentaerythritol carbonate, (5) trimethylol propane carbonate, (6) ethylene oxide, (18) trismethyldiglycol orthoformate and (19) dipentaerythritol carbonate and trimethylol propane oxetane; by reacting polyisobutenyl phosphonic acid with (7 and 8) trimethylol propane oxetane; and by further reacting product (1) with (9) linoleic acid dimer, (10) polyisobutenyl succinic anhydride, (11) maleic anhydride and trimethylol propane, (12) succinic anhydride and trimethylol propane, (13) adipic acid and trimethylol propane, (14) linoleic acid dimer and trimethylol propane and (16) adipic acid and pentaerythritol; by further reacting product (8) with (15) adipic acid and trimethylol propane; and by further reacting product (3) with adipic acid and pentaerythritol.
Patent GB-1137325-A (GB)
Title: Improvements in electrical circuit breakers
IPC: H01H71/40
Filed: 1967-02-17
Abstract: 1,137,325. Automatic circuit-breakers. GENERAL ELECTRIC CO. 17 Feb., 1967 [17 Feb., 1966], No. 7609/67. Heading H1N. A tripping device for a circuit-breaker comprises a magnetic core 60 surrounding a current conductor 38 and having two pairs of pole pieces 66, 68, and an armature 54 which is attracted to the pole-pieces 66 to turn a trip bar 46 when a large overload current occurs in the conductor 38. A bimetallic strip 57 is secured to the conductor 38 and is heated by the conductor so that it may move the armature 54 towards the pole-pieces 66 to cause tripping when an overload current of an intermediate value occurs. A further bimetallic strip 50 is carried by a short-circuited single turn winding 64 on the core 60 and is heated by the winding 64 to turn the trip bar 46 under relatively low overload conditions.
Patent GB-609346-A (GB)
Title: Means for holding the swaged ends of aircraft control cables during the adjustment of the turnbuckle
IPC: G05G1/00
Filed: 1946-03-12
Abstract: 609,346. Wrenches. PAUL & GRAY, Ltd. March 12, 1946, No. 7636. Convention date, March 1, 1945. [Class 61 (iii)] The flatted, threaded terminals of control cables connected by a turnbuckle are held against rotation whilst the latter is adjusted by a device comprising two arms 1, 2 hinged at 3 and adjusted by means of a slotted quadrant 6 and clamp nut 7 and provided at the ends with pivoted jaws 4 which engage the flatted parts. In a modification, the arms are slidably adjustable on a rod.
Patent GB-1490842-A (GB)
Title: Water-soluble anthraquinone dyestuff
IPC: C09B1/34
Filed: 1976-02-26
Abstract: 1490842 Water soluble anthraquinone dyestuff BAYER AG 26 Feb 1976 [27 Feb 1975] 07637/76 Heading C4P The invention comprises the water soluble dyestuff having the formula which is prepared by reacting 1-amino-4-bromoanthra-quinone-2-sulphonic acid with 2-methyl 4-tert-butylaniline in aqueous or aqueous alcoholic solution in presence of a copper catalyst, e.g. Cu(I) chloride. The dye dyes natural and synthetic nitrogen containing textile materials blue.
Patent GB-696515-A (GB)
Title: Apparatus for charging an insulating layer
IPC: G03G15/02
Filed: 1951-04-03
Abstract: 696,515. Apparatus for charging electrophotographic plates. BATTELLE DEVELOPMENT CORPORATION. April 3, 1951 [April 6, 1950], No. 7689/51. Class 98 (ii). The apparatus comprises an electrode source of gas ions, a conductive electrode having a surface spaced from the ion source, relatively movable supports for an insulating layer and the ion source for moving the insulating layer between the ion source and the conductive electrode, a control electrode between the insulating layer and the ion source, a potential source for applying a high voltage between the ion source and the control electrode, and a second potential source for applying a lower potential between the control electrode and the conductive electrode, whereby the control electrode determines the potential which is applied to the insulating layer by the ion source and maintains said potential uniform and of the same polarity as the ion source. As shown, an electrophotographic plate comprising a photoconductive insulating layer 2 on a conducting layer 8 is carried to and fro over a conductive guide plate 3 by conductive conveyer belts 10, 11 moved by pulleys 19 driven by an electric motor 12 beneath parallel wires 5 which are supported by insulating blocks 6 and from which a corona discharge passes to the plate 3. A control grid 7 of trough shape is formed by parallel wires also secured to the blocks 6 and serves to ensure that the apparatus raises electrophotographic plates of a given kind always to approximately the same potential. A half-wave rectifier supplies the steady potentials required by the discharge electrode 5 and the control grid 7, the remainder of the conducting elements of the apparatus including a plate 22 over the electrode 5 being earthed. If desired, stepped-up A.C. may be fed to the discharge electrode 5 which may be biased by a steady potential while the control grid is supplied with a steady potential or a potential of a single sign pulsating in synchronism with the discharge electrode voltage. By suitable choice of the potentials applied, the layer 2 may be given a positive or negative charge of any chosen potential. The parallel wires of the control grid along the inclined sides of the trough may be replaced by metal plates, or alternatively the grid may be formed of metal mesh disposed with its strands transverse of the direction of movement of the layer 2. The wires of the discharge electrode 5 may be replaced by a row of needles and may be covered by a grounded conducting shield carried by spaced insulating blocks across the bottom of which the parallel wires of the control grid extend.
Patent GB-1172123-A (GB)
Title: Improvements in or relating to Calendar Clocks
IPC: G04C17/00
Filed: 1967-02-17
Abstract: 1,172,123. Calendar clocks. ENRICO BOSELLI S.p.A. Feb.17, 1967 [Nov.30, 1966], No.7730/67. Heading G3T. A calender clock having day of the week and date indicating plates which are turned over similarly to the pages of a book is characterized in that the indicating plates are mounted on horizontal axes to give an indication of the day number of the month, the month name, the week day, the hours and the minutes, the hours and the minutes indicating plates 5, 6, 7 being driven by a clock movement and a device being provided for automatically setting the correct day number following the end of each month including a leap year February month. The hours and the minutes plates 5,6,7 form part of a clock described in Specification 1,050,787, a cam 13 on the shaft 12 of the hour plates 5 engaging a pin 14 of a spring-loaded lever 15. At the end of each twenty four hour period, a freely hanging catch 19 is lifted upwards by the lever 15 and engages a pin 20 of a wheel 21 to change the indication of the week day plates 4. At the same time, a seven toothed wheel 23 engages a pin 24 of a lever 25 to rotate the lever 25. An end 25a of the lever 25 in turn rotates a lever 27 attached to a shaft 35 which consequently rotates a lever 38. One arm 38a of the lever 38 moves out of a notch in a wheel 39 whilst another arm 38b closes the contacts of a micro-switch 41. Current is therefore supplied to a practical horsepower motor 54 thus rotating a pinion 50, gears 51, 47 and the wheel 39. A spring-loaded catch 43 prevents the arm 38a re-entering the notch thereby opening the switch until the wheel 39 has made one revolution and a day number indicating plate 2 has been advanced, the gear 47 rotating gears 48, 53, 49 and the shaft 32 of the plates 2. A wheel 31 having three pins 30 of different lengths is also rotated with the shaft 32. At the end of a month with thirty one days, an eccentric wheel 55 attached to the shaft 32 rotates an eccentric wheel 56 attached to a finger 58, so that the finger rotates a twelve toothed wheel 59 by one tooth. A shaft 60 this rotates a month indicating plate 3 via gearing 61-63. A cam 28 is also attached to the shaft 60 and has recess of different depths which co-operate with an arm 27a of the lever 27. Thus at the end of a month with less than thirty one days, the arm 27a enters the appropriate recess in the cam 28 and one or more of the pins 30 holds an end 27b of the lever 27 in its upper position so that the motor 54 is held switched on for two or more advancements o f the day number indicating plates 2. A lever 66, rotating at one revolution in four gears, allow for a leap year by engaging the deepest of the recesses in the cam 28 corresponding to a twenty-eight day February month and reducing its depth, thereby reducing the number of pins that arrest the lever 27 from three to two.