baber/WOPTO huggingface dataset:
Patent GB-157072-A (GB)
Title: Improvements in electrical speed regulator systems
IPC: H02P5/50
Filed: 1920-11-23
Abstract: 157,072. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Staege, S. A.). Jan. 12, 1920, [Convention date]. Electric working; systems depending on the use of two or more motors.-An electrical speed-regulator system for maintaining a constant speed ratio between a number of moving parts, such as sets of rolls in a paper mill or a steel mill, comprises separate electric driving-motors 2, 4 for the different sets of rolls 1, 3 each set being associated with a frequency changer 21, 28 driven by the rolls, an auxiliary frequency changer 29, 30 driven through change-speed gear 43, 44 from a constant-speed shaft 33 driven by a motor 40, an induction motor 73, 74 for operating motors 80 controlling rheostats 13 in the field circuits of the motors 2, 4, a frequency changer 69 common to all the sets of rolls, and a dynamo 17 supplying current to the motors 2, 4 and a motor 16 driving the frequency changer 69. The primary coils 22, 24 of the frequency changers 21, 28 are connected to a source of three-phase current, and the secondary coils 23, 25 to the primaries 35, 31 of the frequency clrangers 30, 29. The secondary coils 32, 36 of the frequency changers 29. 30 are connected to the primaries 75, 136 of the induction motors 73, 74, the secondary coils of vhich are connected to the secondary coil of the common frequency changer 69 supplied with three-phase current. If the speed of either of the motors 2, 4 varies, the speeds of the frequency changer 21 or 28 and the frequency changer 29 or 30 vary, thus operating the motor 73 or 74 which closes one or other of the switches 97, 98 or 104, 105, and allows current to pass through the differential field-coils of the motor 80. The motor 80 operates the rheostat arm 81 and varies the resistance in the field of the motor 2 or 4 and thus restores the speed to normal. The switches 97, 98, 104, 105 are operated by an oscillating plate 93 frictionally held on the shaft 84 of the motor 73. If the motor 73 is operating at a relatively high speed, a contact arm 123 is operated to hold the circuits of the coils 110, 116 open until the speed of the motor 4 is near normal and the speed of its motor 73 is reduced. The, arm 123 is connected to the shaft 84 by a liquid friction drive and carries a contact 125 engaging a contact 126 in series on the coils 110, 116. The speed of the motors 2, 4 may be adjusted by hand by means of a resistance 14 in the field circuit. The speeds of all the rolls may be changed without changing the speed ratio between them by varying the voltage of the dynamo 15 by means of the rheostat 20 in the shunt field circuit. The speed ratio between the sets of rolls may be changed by adjusting the speed-changing devices 34, 37 by means of a screw 49 operated by a ratchet wheel which is rotated in opposite directions by pawls actuated by electromagnets under hand control.
Patent GB-1481146-A (GB)
Title: Circular knitting machines
IPC: D04B15/82
Filed: 1975-08-08
Abstract: 1481146 Knitting machines MACCHINE TESSILI CIRCOLARI MATEC SpA 8 Aug 1975 [20 Aug 1974] 33109/75 Heading D1C Rocking selector jacks in the needle cylinder of a circular knitting machine are selected by a device comprising at least one lever 9 pivotable between an active position (A, B, C, E in Fig. 4) in which a thrust profile 9c urges associated jack butts 33 radially inwardly clear of a lifting cam and an inactive position (D), the lever having a control profile 9B spaced upstream from profile 9C and engagable with a butt 33 in one of the lever positions (inactive, as shown) to pivot the lever to the other (active) position, the lever then being normally retained in the latter position by permanent magnet means 18, 14A but being released on selective energisation of neutralising windings 22 whereupon biassing means such as a spring 16 returns the lever to the one (inactive) position, the gap between profiles 9B, 9C accommodating the butt 33 during the latter pivoting. The butts 33 are arranged at e.g. 12 levels. A common magnet 18 or individual magnets may be used.
Patent GB-1362421-A (GB)
Title: Carriage for transferring a loop in knitting
IPC: D04B7/08
Filed: 1971-07-15
Abstract: 1362421 Knitting-machines SILVER SEIKO CO Ltd 15 July 1971 33288/71 Heading D1C In a hand flat machine loops are transferred from desired needles to adjacent needles for producing openwork by a transfer element actuated by the needle butts. The carriage, which is symmetrical about its centre, one half only being shown, includes inter alia a path X for transferring needles and a path Y for receiving needles. Needles are selected by the mechanism described in Specification 1092298 for instance. The transfer element 18 is carried at one end of a pivoted lever 16 actuated by lever 10 via link 15. A needle butt in path X striking edge 9 projects the element, which is returned by spring action or contact of the butt with edge 23. Alternatively the element 18 and edge 9 may be at opposite ends of a bar parallel to the needles. Transfer occurs as follows: The transferring needle is advanced, and its tip raised by a control cam 20 so that the latch rests on the edge of control plate 21. The loop b is pushed to the end of the latch by a control plate 19. The latch of the receiving needle c is errected magnetically and held back under member 35. The transfer element 18 is projected as described and spreads the loop to overlap needle c as the carriage passes. On its withdrawl, needle c is retracted sharply by a spring urged cam 25 to take the loop. Needle a is withdrawn to leave the loop b solely on needle c. Selvedge needles are manually placed in track B to avoid dropped stitches. (For Figures see next column)
Patent GB-339741-A (GB)
Title: Improvements in, and relating to, gear cutting machines
IPC: B23F1/08
Filed: 1929-11-01
Abstract: 339,741. Box, E. S. B. Nov. 1, 1929. Gear-cutting; milling- cutters. - A gear-cutting machine comprises a cutting-wheel f, carrying a number of cutters g arranged so that each successive cutter projects slightly more from the wheel than the preceding one, and the cutter spindle d is mounted in a holder c which is pivoted on trunnions b, and is driven through a wheel e. The blank h is mounted on a spindle j. A fluted roller m rotating with the cuter-spindle co-acts with a fixed roller n so as to oscillate the cutter-holder during operation in such a way as to cause each cutter g to travel in a straight line path through the blank. In a modification the cutters may be concentrically mounted, and in this case the roller m is arranged to give a progressive feed movement to the cutter-holder in addition to the oscillatory movement required to obtain a straight line cutting path. In another modification, Fig. 3, a finishing cutter q, mounted on a spindle r in the cutting-wheel, comes into operation after the teeth g and is maintained at a constant angle to the work by means of a cam t. In another modification the cutter-spindle may be carried on a slide moving at right angles to the blank axis. The cutter-spindle may also be arranged vertically. The cutting-wheel may consist of two discs with the shanks of the cutters gripped between them.
Patent GB-197639-A (GB)
Title: Improvements relating to the agglomeration of powdered or finely crushed fuel by means of pitch
IPC: C10L5/10
Filed: 1922-12-06
Abstract: 197,639. Du Boistesselin, H., Dubois, O., Tabb, F. W., Varnier, L., and Hertenbein, L. May 12, 1922, [Convention date]. Composition fuel.-In the manufacture of combustible agglomerates by means of powdered or crushed fuel and of pitch in suspension in water, the pseudo-solution of pitch is mixed with the material ground in the dry state, the mixture is pressed, and the agglomerates dried, at a temperature between 200‹-250‹ C., which ensures the removal by evolved steam of volatile products. of the pitch. In one method, pitch is ground with water as the dispersing agent. Small amounts of gummy or resinous substances, such as dextrin,. resin soaps, or concentrated extracts of sulphite cullulose, may be added to the water, and oxidizing agents such as chloride of lime or nitrates of metals having two degrees of oxidation such as iron, chromium, cobalt &c. may be introduced into the pseudo-solution before it is mixed with the fuel dust in order to oxidize oils contained in the pitch and promote the combustion of the fuel.
Patent GB-1396288-A (GB)
Title: Manfuacture of plasterboard
Inventor: GWYNNE T
IPC: E04C2/04
Filed: 1971-07-15
Abstract: 1396288 Finishing edges of sheet material BPB INDUSTRIES Ltd 17 July 1972 [15 July 1971] 33354/71 Heading B5K [Also in Division E1] A covered edge on plasterboard 10a, comprising a gypsum core 13, a facing sheet 12 and a backing sheet 11, is characterized in that the sheet 12 is folded over the edge face of the core 13 and over the edge portion 11b of the sheet 11, the overlapping portions 11b, 12b of the sheets 11, 12 being thinner than the main portions of the sheets and the sheet 12 being adhered to the sheet 11. Preferably, the sheets 11, 12 are of paper. To cover a cut or damaged edge, the core 13 of the board 10a is rebated at 14, immediately above the sheet 12, to leave a projecting portion 12a, Fig. 1B. The unwanted portion of the core 13 and the sheet 11 is cut away and the inner surface of the sheet 12 is scored at 15 and the edges of the sheets 11, 12 are thinned at 11b, 15b, Fig. 1c (not shown). A band or bead 16 of hot melt adhesive is applied to the portion 12a, Fig. 1D, which is then folded up against the edge of the core 13 and the edges 11b, 12b overlapped, Fig. 1E (not shown). Pressure is applied to effect bonding. Apparatus for forming the finished edge, Figs. 2 and 3, comprises (a) a table 20 along which a board is positively advanced; (b) a vertical driven circular cutter 21 to cut a board to a desired working width wider than the desired finished width; (c) a horizontal drive, circular cutter 22 having an adjustable blade 23 to form the rebate 14; (d) a cutter 24 having a vertical circular blade 26 to remove the unwanted portion of the core 13 and the sheet 11 and to form the score 15, a guide 27 to remove the severed portion, auxiliary blades 28 adjustably mounted on the blade 26 to form the thinned edge 11b and a blade 29 mounted skew on the axis of the blade 26 to form the thinned edge 12b; (e) a dust collection hood 25 over the cutters 22, 24; (f) a dust collector 31; (g) an adhesive applicator 32; (h) folding guides 34 loaded by springs 35 and (i) a guide 36 to align the boards as they pass along the table 20.
Patent GB-623767-A (GB)
Title: Improvements in or relating to fountain pens
IPC: B43K1/08
Filed: 1946-11-09
Abstract: 623,767. Reservoir pens. MABIE, TODD, & CO., Ltd., JOHNSON, L. W., and SEARS, E. S. Nov. 9, 1946, No. 33373. [Class /146 (iii)] A ball-point pen has a number of balls c, d mounted in mutually rotatable contact, the lowermost ball being the writing ball, and the balls being located so that the line joining their centres is at an angle to the pen axis. As shown, the balls are mounted in a cylindrical box c closed at its inner end and spun inwards at its outer end to retain the balls. A capillary ink-feed tube f is connected at one end to the reservoir and at the other end to the box, and directs the ink.between the two lowermost balls.
Patent GB-521372-A (GB)
Title: Improvements in or relating to mirrors
IPC: A45D42/12
Filed: 1938-11-17
Abstract: 521,372. Mirrors. NAIMANN, E. Nov. 17, 1938, No. 33420. Convention date, Aug. 5. [Class 52 (iv)] A mirror a is pivoted to a quadrilateral frame e, f, the lower limb of which is mounted on a base frame i, j, in an adjustable manner by a metallic coil q the base frame i, j being adapted to hook on to the neck or shoulders of the viewer. In a modification the base frame may be a breastplate i<SP>1</SP>, braces or other 'means for securing to the viewer.
Patent GB-995565-A (GB)
Title: Improvements in or relating to nozzles and other refractories for use in teeming andcasting steel
Inventor: LAMING JACK
IPC: C04B35/18
Filed: 1962-08-31
Abstract: Shaped refractory articles are formed from a composition containing 2-30% by weight of carbon, e.g. graphite, the balance being selected from 1, a mixture of fireclay and calcined fireclay, e.g. grog or chamotte or 2, a graded mixture of alumino-silicates or fused or calcined alumina with or without plastic clay or 3, a graded mixture of magnesia with or without spinels or spinel forming oxides, e.g. alumina, chromia, magnesium aluminate spinel containing chromium sesqui-oxide and iron oxide and chrome ore. The formed bodies are fired in an inert or reducing atmosphere.
Patent GB-165434-A (GB)
Title: Advertising by means of motor vehicles
IPC: G09F21/04
Filed: 1920-11-29
Abstract: 165,434. FantappiÚ, S. June 24, 1920, [Convention date]. Reel and web and moving and changing apparatus.-In advertising means consisting of attraction devices on motor vehicles, lamps, illuminated advertisements, transparencies, &c., are arranged on a frame or stand which may be fitted with slides or grooves so as detachably to engage corresponding grooves or guides a on the vehicle, the frame being then secured in place by any means. The lamps may be electric, and in that case their illumination may be changed by commutators set in motion by the vehicle. The Specification as open to inspection under Sect. 91 (3) (a) comprises also transparent bands bearing advertisements mounter on rollers which may be turned by hand or by the motion of the vehicle. This subject-matter does not appear in the Specification as accepted.
Patent GB-154602-A (GB)
Title: Improvements in controlling apparatus for steam turbines
IPC: F01D17/14
Filed: 1920-11-29
Abstract: 154,602. Aktieselskabet Atlas. March 24, 1919, [Convention date] Regulating; reversing.-A regulating-valve 3 is arranged in front of a reversing-valve 41 of the kind described in Specification 154,601 adapted to connect the steam supply pipe 44 either with the branch 45 leading to the forward-running stages of a turbine or with the branch 46 leading to the reverse-running stages. By closing the valve 3 before reversing, the valve 41 can be more easily moved. The valve 3 is set by a hand-lever 32 connected by links 31, 27, 23 to a valve 19 which admits oil from the lubricating svsfem under a piston 8 secured to the valve stem 6, and loaded by a spring 10 or other device. The lever 27 is pivoted on a stud 28 on the stem 6. By this device, for each position of the lever 32 there is a corresponding setting for the valve 3 so long as the oil pressure is greater than the spring load on the valve, whereas if the oil pressure falls below said load the valve 3 is closed by the load whatever the setting of the lever 32.
Patent GB-990000-A (GB)
Title: A process for dyeing acrylic fibres
Filed: 1963-08-26
Abstract: Acrylic fibres of copolymers containg more than 80% acrylonitrile are dye with cationic dyes in an aqueous dyebath to which has been added less than 10 g/l monochlorobenzene emulsified, e.g. with a nonionic emulsifier, at temperatures of 70-90 DEG C.  The dyed fibres may be steamed or dry heated above 100 DEG C when the volatile carrier is removed.  The specified nonionic emulsifiers are polyoxyethylene alkyl ethers, polyoxyethylene alhylphenol ethers, fatty acid diethanolamides, anhydrous sorbitol fatty acid esters/ethylene oxide addition products.  Examples are given in which a number of dyes are specified.
Patent GB-908641-A (GB)
Title: Improvements in the refining of alcohols
IPC: C07C29/88
Filed: 1959-10-06
Abstract: Synthetic alcohols are refined by contacting with a dilute mineral acid, separating and washing the alcohol phase with water, and contacting with an amine borane of formula, X:BM3 in which X is a nitrogen containing heterocycle, or a secondary or tertiary amine of formula R.R1R2N where R and R1 are alkyl radicals with 1 to 20 carbon atoms and R2 is hydrogen or an alkyl radical containing from 1 to 20 carbon atoms. Alcohols derived from non-fermentation processes such as by the hydrogenation of dehydrated alcohol; catalytic hydration of alkenes; the Cuerbet process; hydrogenation of carbonyl compounds and the oxo process which yields C4-C12 primary alcohols are used.  The mineral acids e.g. hydrochloric, sulphuric, and phosphoric acids, hydrolyse the acetal impurities in the crude alcohol, and the upper alcohol layer is separated and water washed.  Boranes specified are dimethyl- and trimethyl-amines, diethyl, dipropyl, and dibutylamine boranes, propyl-butylamine, methyl-ethylamine, ethyl-propylamine, dimethyl-n-dodecyl, methyl-n-octadecyl, and diisopentylamine boranes, and pyridine, and amyl hexyl and nonyl pyridine, picoline, collidine, piperazine, pyrazine, and piperazine boranes, and are added to the alcohol in preferably stoichiometric amounts such as from 0.001 to 5.0%.  Examples describe the purification of isodecanols and the preparation of light-coloured diisodecylphthalate ester therefrom. Reference has been directed by the Comptroller to Specification 844,834.
Patent GB-468689-A (GB)
Title: Improvements in and relating to vehicle lamps
IPC: F21V7/09
Filed: 1935-12-09
Abstract: 468,689. Systems of lighting for road vehicles. McNAUGHT, A. J. Dec. 9, 1935, No. 34007. [Class 75 (iv)] Head or fog-lamps are made with two incomplete reflectors 9 and the appropriate sources 10 and front glasses 8. The twin lamps abut along a central line. Specification 401,506 is referred to.
Patent GB-1398633-A (GB)
Title: Arrangement for the current-limitting interruption of direct and alternating currents of high voltage at a junction in a power system
IPC: H01H9/54
Filed: 1972-07-20
Abstract: 1398633 Arcing preventing D KIND 20 July 1972 [23 July 1971] 34087/72 Heading H1N An A.C. or D.C. feeder junction is provided with a common interrupting device ZS comprising a switch S1 with a parallel capacitor C1 and a resistor R1, a residual current switch S2 and a voltage limiting circuit FS, C2, R2, the device ZS being connected across the main switch TSa . . . TSc in the branch circuit to be switched off, by an auxiliary switch HSa ... HSc. In use the main switch, e.g. TSa is opened after the associated auxiliary switch HSa has closed. Then the switch S1 is opened and a switch HS is closed to divert the current into the capacitor C1 and subsequently to the resistor R1. The residual switch S2 then opens and spark gaps FS in circuit with a resistor R2 and capacitor C2 ignite to limit the voltage. Subsequently the switches HSa, HS reopen and switches S1, S2 reclose. Fig. 3 (not shown) illustrates a modified circuit for the device ZS.
Patent GB-378741-A (GB)
Title: Automatic multipolar toggle switch
IPC: H01H71/50
Filed: 1931-12-09
Abstract: 378,741. Automatic circuit-breakers. LEYHAUSEN, W., 79, Bucherstrasse, Nuremberg, Germany. Dec. 9, 1931, No. 34159. Convention date, Dec. 10, 1930. [Class 38 (v).] In an automatic, multipolar, toggle-lever switch as set out in Specification 284,716, [Class 38 (v), Electric switches &c.], the rocking yoke 12 is used for causing the release of the remaining switch arms 1 when one arm is released by its overload coil. The arms 1 carrying the moving contacts are carried on spindles 2, 3, 4 and biased "off" by springs 11. The yoke 12 has slots 32, 33, 34 of different lengths, which are engaged by pins 10 on the arms 1 for simultaneous closure by the member 20, the yoke being held "on" by a spring 29. When an arm 1 is released, its pin 10 rotates the yoke to release the other arms in turn by means of their pins 10 and slots.
Patent GB-869237-A (GB)
Title: Improvements in or relating to reducing cameras
Inventor: GROAK JOSEF
IPC: G03B27/50
Filed: 1958-10-24
Abstract: 869,237. Reducing cameras. FARRERBROWN, L. Sept. 22, 1959 [Oct. 24, 1958], No. 34191/58. Class 98(1) A reducing camera comprises means for supporting the original film, means for supporting a length of unexposed film, an optical system for projecting an image of reduced size on the unexposed film and driving means adapted to move the original film and the unexposed film, the latter at a speed of 1n/<SP>th</SP> of that of the former where n is the reduction factor; the first supporting means are movable transversely of the direction of projection between a number of predetermined settings selected by means of an adjustable stepped cam. In the camera shown in Fig. 1, light from a lamp 10 and condenser 11 passes through a horizontal slit in a plate 12 and a record film 14 and forms a reduced image of said film on an unexposed film 21 by means of a microscope objective 20. The two films are driven simultaneously in opposite directions by a motor operating through a belt, gearing, a rod 26 and worm gearings 25, 28 and 27, 17. The initial focusing is performed with the aid of an air jet passed through the microscope head 32. The unexposed film 21 is formed as a continuous loop and when it has been passed once over the supporting plate 22 in front of the objective 20 it is moved transversely in the following way. A thicker region is formed on a dead part of the loop and is detected by an air jet 48 which then closes an air switch which operates through a time switch an electromagnet 44 which in turn rotates a stepped cam 40 so that a bed 34 on which the unexposed film supporting means is mounted moves transversely over the base 13 of the camera, by action of a spring 39 until a cam follower on the bed engages the next step in the cam. The film 21 is thus moved sideways step by step until, after six steps, the bed 34 operates a switch 46 to switch the whole camera off. The air switch 31 also acts in conjunction with a microswitch to disengage a clutch 47 by means of a lever 55 and push rod 56 so that the record film is not driven during the time the dead space is in the image plane. When the thickened part of the dead space passes in front of a second jet 49 the clutch is closed and exposure of the next row on film 21 takes place.
Patent GB-799693-A (GB)
Title: Improvements in or relating to power-driven tractors
IPC: B62D49/02
Filed: 1955-11-30
Abstract: 799.693. Tractor power-lift mechanisms. BOUGHTON, T. T., and BOUGHTON & SONS, Ltd., T. T. Nov. 30, 1956 [Nov. 30, 1955], No. 34297/55. Class 79(1) [Also in Group XXXIV] A tractor has a power driven winch 9 and a pivoted anchor 12, 15 rotatable about an axis 13 and mechanically coupled as by chains 18, to hydraulic lift arms 1. The lift arms 1 are actuated through arms 3, 6 by a lifting jack 5, one of the arms being adjustable in length by screw means 7. The anchor 12, 14, 15, 16 is pivoted at 13 to a girder 10 on the tractor and the chains 18 may be connected to a cross-bar 17 or to the arms 12. A hoop 22 on crossbar 17 may engage abutment 27 on the winch to hold the anchor out of grund engagement, or may engage abutment 28 on the girder 10 to limit downward movement of the anchor. Specification 799,694 [Group XXX] is referred to.