baber/WOPTO huggingface dataset:
Patent GB-356634-A (GB)
Title: Improved method and means for controlling the vapour content or humidity of air and other gases
IPC: G05D22/02
Filed: 1931-01-27
Abstract: 356,634. Moistening air and other gases. STURTEVANT CO., B. F., Dana Avenue, Hyde Park, Boston, U.S.A.- (Assignees of Anderson, S. M. ; 78A, North Main Street, Sharon, Massachusetts, U.S.A.) Jan. 27, 1931, No. 2650. Convention date, Jan. 28, 1930. [Class 55 (ii).] To control the humidity of air and other gases within an enclosure, a window pane 28, having one side exposed to a temperature different from that in the enclosure, is exposed to a constant light beam from a lamp 27 and the vapour control apparatus 40 is controlled by the change in intensity of light leaving the medium due to condensation on the window. The light beam passing through the pane 28 falls on a photo-electric cell 35 and the currents thus produced after amplification pass through a coil 44 suspended in a magnetic field so that its attached arm 46 is swept over the rheostat 47 and thus the current through solenoid 49 which controls the liquid supply valve 52 of the humidifier 40 is varied. Alternatively, the amplified currents may open or close the liquid supply valve through a relay. If illumination other than that from lamp 27 affects the apparatus, a photo-electric cell 33 provided with a circuit similar to that attached to cell 35, controls the movement of a shutter 38 of graded opacity in front of cell 35 to compensate for variations in illumination not due to condensation on pane 28. To meet this difficulty, the enclosure 70, Fig. 4, containing the lamp 71 is extended up to the window so that no illumination except that from lamp 71 reaches cell 75. To maintain the enclosure at the same temperature as the outside air a fan 78 draws air through light-tight shutters 80 and ejects it through port 81.
Patent GB-1063721-A (GB)
Title: Electrolytic machining
Inventor: BARTON PHILIP
IPC: B23H5/06
Filed: 1965-01-21
Abstract: <PICT:1063721/C6-C7/1> Balls, cylinders and like articles of circular cross-section are electro-machined in the presence of an abrasive by trapping the balls 19 between two relatively rotatable wheels 11, 14 of which 14 is of an abradant composition and preferably has a groove 18 cut in the face to contain the balls. The wheel 11 is pressed forward by a spring 15, and may be fixed and carries a cover 22 which retains a substantial amount of the electrolyte fed into the axis tube 21.  The balls are subjected to both grinding and electrolytic action.  The abrasive wheel is impregnated with silver to render it conductive.  For an alternative arrangement Figs.2, 3 (not shown) the ball is supported between the edges of Cortia-rotating wheels, one of which is non-conductive and has metal inserts and slip rings, the abrasive being fed in with the electrolyte.
Patent GB-128862-A (GB)
Title: Improvements in or relating to Grinding Machines.
Inventor: LUMSDEN THOMAS
IPC: B24B27/00
Filed: 1919-02-03
Abstract: 128,862. Lumsden, T. Feb. 3, 1919. Disk, wheel, and roller apparatus.-In a grinding-machine having a reciprocating work-table b, the grinding-wheel n is carried by a ram k mounted for vertical adjustment in a cross-girder f, which has a long bearing t slidable vertically on a cylindrical column c at one side of the worktable, and a slide-member u slidable on the cheek of a housing d, of the type used in planing- machines, at the other side of the work-table; the column and the housing are connected together at the top by a cross-member e. The cross-girder f is adapted to be secured in position, after adjustment, by nuts h, j, and cooling-liquid is supplied to the grinding-wheel through its hollow shaft o from a pipe s. The grinding-wheel may be mounted on an horizontal shaft.
Patent GB-103546-A (GB)
Title: Improvements in or relating to Cranes.
IPC: B66C9/14
Filed: 1916-02-23
Abstract: 103,546. Ransomes & Rapier, and Bowtell, W. J. Feb. 23, 1916. Overhead transporters. - In cranes of the transporter type in which a carrier J from which the load is suspended c a n travel along a boom C, which may be horizontal as shown in Fig. 1, or tilted to an inclined position, Fig. 4. means, such as a chain R, are provided independent of the stay ropes, for anchoring the end of the boom to the foot of the superstructure when in the inclined position. The boom C is suspended by ropes D, D<1> from a member E pivoted at the top of the superstructure A, and is controlled by stay ropes G connected to drums H so that any stay rope can be lengthened or shortened independently of the others. The carrier C is traversed by ropes K, K<1> wound in opposite directions on the drum M, and the load rope N is wound on the drum O. The superstructure may be arranged to turn about a vertical axis; and, in a modification, the boom C may form one side of a triangular lattice structure pivoted at its apex to the top of the superstructure.
Patent GB-650558-A (GB)
Title: Improvements in or relating to direct current electric supply systems
IPC: H02P7/34
Filed: 1948-01-29
Abstract: 650,558. Exciting dynamo-electric machines; automatic speed-control systems. GENERAL ELECTRIC CO., Ltd., and GRANEEK, M. Jan. 29, 1948, No. 2727. [Classes 35 and 38 (iv)] [Also in Group XXXVII] An arrangement for exciting a D.C. generator 1 so that it only delivers current when the control excitation exceeds a certain value, comprises a source of reference voltage 9 connected through rectifiers 11, 12 to the output of the machine, the machine having a control field winding 2 and a winding 3 excited in dependence on the output current so that when the reference voltage is overcome and the rectifier becomes conducting, the field is boosted by an amount depending on the load current. The current to the load 23 passes through resistance 5 which may be variable and shunts the field winding 3, and to a point on a potentiometer 7, 8 energized by the reference voltage 9. The invention is shown applied to providing an over-riding current maximum for a constant speed Ward-Leonard motor control system 20, 12, 13, in which the motor current energizes the control winding 2 of the generator 1, whose output is in turn fed to a field winding 23 on the exciter E controlling the generator G of the system to cut off the motor current. The speed of the motor is .controlled by a control winding 21 on the exciter E and a further winding 22 fed by a tachometer generator T with a voltage depending on the motor speed.
Patent GB-1073686-A (GB)
Title: Process and device for separating a gas mixture rich in hydrogen
IPC: F25J3/02
Filed: 1965-01-21
Abstract: 1,073,686. Cold separation of hydrogen mixtures. STAMICARBON N.V. Jan. 21, 1965 [Jan. 24, 1964], No. 2759/65. Heading F4P. In a process for separating hydrogen-rich nitrogen from coke oven gas wherein compressed feed gas is fed through a line (1), Fig. 1 (not shown), into a methane column (2) cooled by product hydrogen and nitrogen discharged through a line (9) from a scrubber column (6) and to which line (9) liquid nitrogen is added through a line (10) and wherein the column (2) is also cooled by condensed carbon monoxide withdrawn from the scrubber (6) through a line (7) having an expansion valve (18), the temperature of the feed gas at the outlet of the column (2) in said line (7) leading to the scrubber (6) is maintained constant by varying the rate of supply of supplementary liquid nitrogen from line (10) to line (9) and of condensed carbon monoxide from expansion valve (18) in line (7) by control means responsive to said temperature. A temperature rise from, say, - 180 C. to - 175 C. at the feed outlet of column (2) results in a signal transmitted by a temperature responsive element (14) to a device (11) which actuates liquid nitrogen flow regulators (15 to 17) in line (10) and device (11) is also responsive to a volumeter (12) in feed line (1). Element (14) also sends a signal to a level responsive device (19) which in turn controls discharge valve (18).
Patent GB-574352-A (GB)
Title: Improvements in or relating to automatic guns
IPC: F41A3/40
Filed: 1943-02-19
Abstract: 574,352. Automatic guns. MOTLEY, L. Feb. 19, 1943, No. 2797. [Class 92 (ii)] The breech block 2 of an automatic gun is locked to the barrel 1 by a biassed member 4 which moves under its bias into the locking position, when the breech block is in its forward position, independently of any movement, of the barrel relatively to the fixed part of the gun mounting, unlocking being effected by a device which is slidably mounted on the breech block and which is driven rearwardly to effect the unlocking when the barrel recoils on a shot being fired. In the construction shown, the breech-block 2 is fitted with a pivoted member 4 adapted to engage with an insert 6 in a recess 5 in the barrel extension 1a to lock the breech-block to the barrel extension when the parts are in the firing position. Plates 10 are arranged one on either side of the breech-block, being urged forward in relation thereto by spring 17 and having a pin and slot connection 20, 21, therewith. Each plate is fitted with a rod 11 adapted to be engaged by one arm 7 of a bell crank lever pivoted at 8 to a ring 12 secured to the barrel 1. The other arm of the lever engages with a pin 15 connected, as shown, to a non-recoiling part of the gun. When a shot is fired, the barrel and breech-block recoil together and the arms 7 impart an additional movement to the plates 10, thus moving the latter rearwardly with respect to the breech-block and thereby causing inclined surface 10a on the plates to engage and lift the member 4. Screw-threaded devices 13, 16 permit of fine adjustment of the pin 15 and also of the effective part of the arm 7 as shown. In a modification, Fig. 4 (not shown) each bell-crank lever is replaced by a cog wheel which engages an adjustably mounted rack fixed to a non-recoiling part of the gun and with a second rack on each rod 11. In this modification, the rods 11 are not attached to the side plates but abut against them. The Provisional Specification describes also a construction in which the bell-crank levers are formed with toothed quadrants which engage with a fixed rack on the gun.
Patent GB-645206-A (GB)
Title: Method of and apparatus for sealing and annealing glass envelopes
IPC: H01J5/24
Filed: 1948-01-30
Abstract: 645,206. Discharge apparatus. COMPAGNIE DES LAMPES. Jan. 30, 1948, No. 2829. Convention date, Jan. 31, 1947. [Class 39 (i)] Relates to the sealing and annealing of glass envelopes, e.g. hard glass envelopes of electronic tubes. As shown, the main body 28 of the envelope, to which a glass seal 26 is to be joined, is placed in a carrier 5 which is mounted for vertical movement along guide rods 25 and is rotatable by gear wheels 8, the seal 26 being preheated and placed on a carrier 6, on a shaft 11, which is movable vertically independently of, but is rotatable in unison with, the carrier 5 by gearing 7 on the connecting shaft 9. The seal 26 is raised to meet the body 28 and the two parts are set in rotation, the heat of the junction being provided by proximity to an oven 12 and by a tangentially arranged series of burners 14. During the sealing, inert gas is passed into the body 28 through a tube 18 which passes through a centre tube 15 of a mercury seal and through the exhausting tube 31 of the body 28. A gas-tight joint 17 is provided between the tubes 15, 31. After sealing, the burners 14 are extinguished and swung aside, the rotation is stopped and the oven 12, which is mounted on a vertically adjustable plate 10, is raised to bring the seal within the oven. The inert gas escapes by way of the exhausting tube 31, tubes 15, 20 and cock 23. The exhausting pump 22 is now started to reduce the pressure in the body 28 which still receives inert gas, the degree of vacuum depending upon the adjustment of the cock 23. The support 32, for a telescopic joint 19 of the mercury seal and the tube 18, is then raised to bring the lower end of the tube above the point 27 where the exhausting tube 31 is sealed off by a blowpipe, the body 28 being released from the carrier 5. The carrier 6 is simultaneously lowered so that the body 28, no longer supported by that carrier, descends and draws out the tube 31 at its sealing-off point. The oven 12 descends with the carrier 6, their actuating mechanisms being interconnected, and the body 28 is allowed to remain in the oven, for annealing, for several hours. The envelope is kept full of gas, to preserve the elements from oxidation, until the final evacuation, when the tube 31 is opened for connection to a vacuum pump.
Patent GB-398092-A (GB)
Title: Improvements in the moulding of hollow cellulose bodies
IPC: B29C33/62
Filed: 1933-01-30
Abstract: 398,092. Moulding hollow articles from cellulose. BLEIBLER, E., 13, Konradstrasse, Winterthur, Switzerland. Jan. 30, 1933, No. 2882. Convention date, Feb. 4, 1932. [Class 87 (ii).] Dipping-formers for the manufacture of hollow articles of cellulose are of sectional form to enable them to be collapsed for removal from the moulded article and have the joints covered with an inert material to avoid the formation of joint marks on the article. The whole of the assembled former 11, 12, 13 may be provided with a rubber &c. jacket 14 on which the article 15 is formed. The exposed parts of the joints may be cemented. Waxes, resins, and varnishes may be used to form the smooth working surface of the former.
Patent GB-471094-A (GB)
Title: Improvements in and relating to intake mufflers for refrigerator compressors
IPC: F25B31/02
Filed: 1937-02-01
Abstract: 471,094. Silencing gaseous currents. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 1, 1937, No. 2894. Convention date, Feb. 1, 1936. [Class 7 (ii)] An intake silencer for the compressor of a refrigerating-machine comprises a chamber having a large volume as compared with the displacement of the compressor, and having an inlet and an outlet, with means restricting the inlet so as to maintain the velocity of the fluid flowing therethrough at a value greater than the acoustical velocity of the fluid, thereby preventing the egress of sound waves. The Figure shows a silencing-chamber 15 having an outlet 36 leading to the compressor, and an inlet 40 provided with a restricted passage of Venturi form. The chamber 15 is preferably of arcuate shape to extend around the compressor.
Patent GB-1517622-A (GB)
Title: Closed loop fuel injection system for an internal combustion engine
IPC: F02D41/34
Filed: 1976-01-26
Abstract: 1517622 Automatic control of fuel/air mixture BENDIX CORP 26 Jan 1976 [25 Feb 1975] 02927/76 Heading G3R A control system for the fuel supply of an I.C. engine includes an integrator which produces a positive ramp output for one level of output from an exhaust gas oxygen sensor and a negative ramp output of different slope for a second level of output from the sensor. In the arrangement shown the output of exhaust gas sensor 12 is compared with a reference voltage level set by potential divider 50, 51 in a comparator stage 14 whose output is applied to a switching stage 18 including an amplifier 20 and a switching transistor 22. The reference voltage level is pre-set to correspond to the sensor output when the engine is supplied with a near stochiometric mixture so that switching transistor 22 conducts when the mixture supplied is rich. The integrator stage 28 has currents i 1  and i 2  supplied to the inverting and non-inverting terminals of an operational amplifier and the total current supplied is controlled by transistor 60 which may respond to a sensor of engine air flow or other operating parameter. The currents i 1 , i 2  are adjusted by varying the circuit resistance so that assymetric positive and negative ramp outputs are obtained for the two states of transistor 22. In a modification, Figs. 4 and 5 (not shown), a delay circuit is provided to generate the switch operating signal which allows the engine to be run with a lean air fuel mixture whilst using a sensor which provides maximum sensitivity at the stochiometric condition.
Patent GB-371894-A (GB)
Title: Process for the manufacture of new products from 7-iodo-8-hydroxy-quinoline-5-sulphonic acid or salts thereof
IPC: C07D215/28
Filed: 1931-01-29
Abstract: 7-Iodo-8-hydroxyquinoline-5-sulphonic acid and its salts are rendered stable when dissolved in water by addition of aromatic or aromaticheterocyclic hydroxy-sulphonic acids or hydroxybenzene-carboxylic acids or salts thereof, together if desired with alkali, alkali carbonate or bicarbonate.  The stability to heat of the aqueous solutions, that is to say, the degree of the suppression of iodine formation, increases with increasing concentration of the added acids.  Examples are given of the addition of 8-hydroxyquinoline-5-sulphonic acid, p-phenolsulphonic acid, b -naphthol-3 : 6-disulphonic acid, gallic acid, 3 : 4 : 5-trihydroxyphthalic acid and 1 : 2-dihydroxybenzene-3 : 5-disulphonic acid.  When iodinating 8-hydroxyquinoline-5-sulphonic acid to produce the 7-iodo compound, incomplete iodination leaves a mixture of starting material and product which can be used directly for the production of stable solutions.ALSO:7-Iodo-8-hydroxyquinoline-5-sulphonic acid and its salts are rendered stable when dissolved in water by addition of aromatic or aromatic-heterocyclic hydroxy-sulphonic acids or hydroxy-benzene-carboxylic acids or salts thereof, together if desired with alkali, alkali carbonate or bicarbonate.  The stability to heat of the aqueous solutions, that is to say, the degree of the suppression of iodine formation, increases with increasing concentration of the added acids.  Examples are given of the addition of 8-hydroxyquinoline-5-sulphonic acid, p-phenolsulphonic acid, b -naphthol-3 : 6-disulphonic acid, gallic acid, 3 : 4 : 5-trihydroxyphthalic acid and 1 : 2-dihydroxybenzene-3 : 5-disulphonic acid.
Patent GB-567339-A (GB)
Title: Improvements in or relating to tumbling materials for polishing metal articles, and methods of polishing articles
IPC: B24B31/14
Filed: 1943-02-23
Abstract: 567,339. Abrasive materials. BALZ, W. G., and DAVIDSON, L. R. Feb. 23, 1943, No. 2969. [Class 91] An abrasive material for polishing metal articles by the tumbling barrel method comprises irregular fragments of crushed limestone and soap and water, the water and soap being of such proportion as to provide a substantial flooding volume of soapy water for the crushed stone and the articles being polished. The mixture may include metal polishing elements, such as steel balls. The soapy fluid may have a water softener dissolved therein ; abrasives such as pumice and oyster shell may additionally be added.
Patent GB-122724-A (GB)
Title: Improvements in Jointing and Packing Rings.
IPC: F16J15/12
Filed: 1918-02-20
Abstract: 122,724. Copeland, S. A., Alexander, C. G., and Taylor, Dunford, & Co., J. Feb. 20, 1918. Joint-making packing.-Joint-making rings are composed of a corrugated metal core covered with esbestos, india-rubber, &c., which ma,y be scurred by vulcanization and a wrapping of similar ma terial, and in some cases coated with graphite.
Patent GB-489506-A (GB)
Title: Improvements in and relating to insulating material for electrical apparatus
Filed: 1937-02-02
Abstract: An electrically insulating thermoplastic mass comprises quartz sand or metal oxides and one or more chlorinated or fluorinated polyphenyl compounds of highly viscous or wax-like consistency.  The Specification as open to inspection under Sect. 91 describes also mixtures of quartz sand with trichlorbenzene and trichlorethylene. This subject-matter does not appear in the Specification as accepted.
Patent GB-144346-A (GB)
Title: Improvements in or relating to liquid meters and the like
IPC: G01F1/37
Filed: 1919-02-07
Abstract: 144,346. Empson, A. W. Feb. 7, 1919. Liquid - meters; measuring - apparatus. -Apparatus for measuring and registering the flow of liquids or gases over a weir, through a pipe or orifice, Venturi tube &c. comprises a resistance and contact device, the winding of the resistance or the shape or movement of the contact device or both being such that an electric current is varied in proportion to the fluid flow, and a suitable electric meter device operates registering-mechanism. Means may also be provided for indicating instantaneous rate of flow. In the form shown in Fig. 1 for measuring liquid flow through a weir notch 3, the contact 7, operated by a float 5, is connected by a line 10 to an electric main 15, and the resistance 8 is connected to a main 14 in series with the field coils 20, 21 and brake coils 19 of an electric meter. The mains 14, 15 are also connected to the commutator 12 through brake coils 18 and a non-inductive resistance 16. The brake coils may be provided with a magnetic core, and may be assisted by a permanent magnet, and the armature spindle 13a is connected to counting or registering mechanism. A switch 22 is connected to a lever 23 acted on by a spring 26 and carrying a perforated bucket 25 which receives the flow from the weir, so that when no water is flowing, the switch is opened. The instantaneous flow may be shown by an ammeter or differential galvanometer in the field circuit, or by mounting the brake coils on an arm or lever coupled to a pointer or pen. In a modification, the resistance 8 is connected in series across the mains, while the field coils 20, 21 are connected as a shunt through the contact 7, as shown in Fig. 2. The resistance 8 may be uniformly wound, and the movable contact may consist of a wire 7a, Fig. 4, mounted on a pulley 32, over which passes a band 33 attached to the float at one end, and to a weight at the other. In another modification applied to a Venturi meter, the mercury in a differential pressure gauge acts as the contact.
Patent GB-778253-A (GB)
Title: Process for the manufacture of -e-caprolactam
Inventor: GIESEN JOHANN
Filed: 1955-02-02
Abstract: e -Caprolactam is produced by treating adipic acid, adipic acid diamide or a diamide-forming derivative thereof in a liquid state with hydrogen in the presence of a hydrogenation catalyst at an elevated temperature not exceeding 220 DEG  C. and under pressure, ammonia also being added when adipic acid or a diamide-forming derivative, such as the diacid chloride or a di-ester, is used as starting material.  Suitable catalysts are those of the iron group. The reaction may be carried out continuously, and in the presence or absence of a solvent.  In Examples (1) and (2), a suspension of adipic acid diamide in dioxan is heated in an autoclave with hydrogen under pressure in the presence of Raney nickel and e -caprolactam is isolated by distillation; (3) in a similar process, a Raney cobalt catalyst is used; (4) the diammonium salt of adipic acid is treated as in (1); (5) a process as in (1) using an iron catalyst; (6) adipic acid diethyl ester is dissolved in dioxane together with a Co-Ni-Al2O3 catalyst and liquid ammonia, and heated with hydrogen under pressure, caprolactam being recovered from the reaction mixture.