baber/WOPTO huggingface dataset:
Patent GB-388020-A (GB)
Title: Improvements in or relating to electric motors
IPC: H02K41/06
Filed: 1931-07-13
Abstract: 388,020. Motors. WARREN TELE. CHRON CO., Ashland, Massachusetts, U.S.A. (Assignees of Warren, H. E. ; Chestnut Street, Ashland, Massachusetts, U.S.A.) July 13, 1931, No. 20094. Convention date, July 14, 1930. [Class 35.] A polarized armature moves in a rotating field in such a way that its axis describes a cone or cylinder, this motion being utilized to obtain a rotation considerably slower than that of the field. For this purpose an armature 16 is polarized by a field, preferably produced by a permanent magnet 15, at right angles to a rotating field produced by a split-phase field magnet 11. The upper end of the armature 16 is toothed internally and rolls on a fixed toothed ring 18, so that it has a slow rotary motion in addition to its rolling motion. This rotary motion is communicated to a spindle 25 by a block 26 at the lower end of the armature 16 formed with grooves with which ribs on the end of the spindle 25 engage. The split-phase field magnet 11 is connected to the permanent magnet 15 through a plate 21 and bolts 23 surrounded by copper rings 24 which choke the alternating flux in the magnet 11 while allowing the unidirectional flux of the magnet 10 to pass. Modifications are described in which the armature has frictional instead of toothed engagement with the second member and in which the second member rotates instead of being fixed. Figs. 14 and 15 show the armature terminating in a polygonal cup 56 of sheet metal with concave sides engaging with a corresponding polygonal block 62. The armature is mounted in a ball-and-socket or like joint 58 and carries a pinion 62 so near to this joint that the effect of the gyratory motion is negligible. In a modification of this form the sheet-metal cup is slotted to form a series of teeth.
Patent GB-398320-A (GB)
Title: Improvements in the constructions of heat regenerators
IPC: C10B29/02
Filed: 1932-07-15
Abstract: 398,320. Regenerators. GROVES, W. W., 30, Southampton Buildings, London. -(Otto & Co., Ges., Dr. C. ; 9, Christstrasse, Bochum, Germany.) July 15, 1932, No. 20103. [Class 51 (i).] An element for use in the construction of a reversible heat regenerator, more particularly the regenerator of a coke oven, comprises a hollow block subdivided by transverse partitions b into a number of chambers d, having at right-angles to the direction of the gas currents a uniform elongated rectangular cross section, and formed on its outer surface with ribs e, f extending parallel to the direction of the gas currents and adapted to act as distance pieces between adjacent blocks or between a block and the walls of the regenerator chamber. The longitudinal walls a of the block project beyond the transverse partitions b to form spacing ribs g ensuring a free space for the passage of gases from one block to the next higher block even if the chambers d are not in complete register. The blocks may be inserted in the regenerator chamber by first inserting a plate and pushing the blocks along the plate in succession towards the opposite end of the chamber until the row is completed whereupon the plate may be withdrawn. Alternatively the plate may be loaded with blocks before insertion into the chamber. The blocks may be removed by inserting beneath the uppermost row a plate having at the front end a wedge by which the blocks are in turn tilted and lifted on to the plate which may then be withdrawn.
Patent GB-857513-A (GB)
Title: Improvements in or relating to apparatus for photographic printing
Inventor: ELPHICK GEORGE STANLEY
IPC: G03B27/72
Filed: 1956-06-29
Abstract: 857,513. Photo-electric printing control. RANK CINTEL Ltd. July 1, 1957 [June 29, 1956], No. 20185/56. Class 40(3). [Also in Group XX] In photographic printing apparatus in which a scanning spot of light from a cathode-ray tube 1 is focused through a negative 9 on to printing paper 10 and light passing through the paper falls on a photo-cell 11 which feeds back through an amplifier 13 to the cathode-ray tube to control its brightness, the light spot does double scans (in opposite directions), and the signal from the amplifier 13 is passed through a device 14 which delays it by a time interval equal to one-half the time taken by the spot to traverse a point of the negative. This reduces the halation effect on a print when the negative changes abruptly from black to white. To complete the scanning, either the light spot or the negative may be moved at right angles to the double scans. The movement of the spot may be sinusoidal and its brightness correspondingly varied. Specification 833,747 is referred to.
Patent GB-805547-A (GB)
Title: Method and apparatus for extracting contaminants from a liquid-permeable body
IPC: B08B3/12
Filed: 1956-06-29
Abstract: <PICT:0805547/III/1> In a process and apparatus for extracting contaminants from a liquid-permeable solid body (e.g. an oil-well core) the body 19 is immersed in an extracting liquid 21, e.g. water, or toluene, pentane, &c. with an emulsifier, which is subjected to ultrasonic waves from a vibrator 16 whilst the extracting liquid is simultaneously cyclically caused to boil by reduction of pressure and cease boiling by an increase of pressure.  The body may be preheated before immersion.  Container 13 is closed by a transparent cover 24 having conduit 27, 28 leading to suction pump 29 and air valve 30 which may be hand controlled or auto-electrically controlled via the optional system 40, 56, 57. In the former case, the valve head 31 raised as shown, the suction pump is started and reduces the pressure in vessel 13 until the extracting liquid 21 is seen through cover 24 to boil, when handle 35 is depressed to lower head 31 on to seat 38, thus cutting off the suction pump and placing the vessel in communication, via passage 33 with the ambient air so stopping the boiling.  Handle 35 is raised and the cycle repeated, the magneto-strictive transducer 16 throughout supplying ultrasonic vibrations of say 15-60 k.c.p.s. via container 13 to the liquid 21, mesh carrier 18 and cores 19.  For automatic cyclic control the diaphragm system 40, solenoid 56 and timer 57 are employed.  Upon the pressure in 13 being reduced by pump 29 to a pre-determined value, diaphragm 47 moves down against spring 46, causing collar 52 to close contacts 54 and operate solenoid 56 to close valve 30 for a period determined by a timer 57 actuated via switch 58 and electric supply 59.  Specification 797,417, [Group II], is referred to.
Patent GB-460422-A (GB)
Title: Improvements in or relating to driving devices for motor knitting machines
IPC: H01B7/20
Filed: 1936-07-22
Abstract: 460,422. Friction gearing. ELITE DIAMANTWERKE AKT.-GES. July 22, 1936, No. 20282. Convention date, May 8. [Class 80 (i)] [Also in Group VIII] The carriage A of a knitting-machine is connected by a releasable coupling member D with a casing E which is reciprocated on its own guides H by a rotating shaft G and inclined friction rollers F. At the end of each traverse of the carriage A the inclination of the rollers F is changed by means of the crank arms 1, sliding racks 2, gear 3, and crank 5. As shown in Fig. 1, the crank pin 6 slides between bars 7 carried by levers 9 fixed together with another lever 13 on a shaft 8. Pivoted on the shaft 8 is another lever 10 resiliently coupled by spring pins 18 with the lever 13 and operated by a cam 12. Adjustable stops 15 determine the rate of travel of the carriage A. In a modification the crank pin 6 engages a stop 22, Fig. 5, near the end of the traverse and is thrown into the reverse position by a spring 23 and toggle arrangement 21, 24.
Patent GB-816494-A (GB)
Title: Hat felting machine
IPC: A42C1/08
Filed: 1957-06-27
Abstract: 816,494. Hat felting machines. STETSON CO., J. B. June 27, 1957 [July 5, 1956], No. 20304/57. Class 63 [Also in Group XL(b)] A machine for shrinking and felting hat bats comprises continuously rotating rolls 4, 5, 6, Figs. 6, 9, between which the bundled bats 18 are supported and rolled, a light source 32 and photo cell 31 being arranged for detection of the presence of the bats 18 between the rolls and controlling ejector arms 23 through a time delay mechanism for automatically ejecting the bats from the machine after a predetermined time interval. The rolls 4, 5, 6 are geared together for rotation in the same direction and each roll comprises side webs 7 having notches cut into their perimeters into which the ends of slats 12 are secured. Cut-outs 22 are formed in the slats 12 of each roll 4, 6 to provide space for the reception of a pair of angular ejectors 23 each comprising arms 24, 24<SP>1</SP>. When forced forwardly the ejectors lift the bats to the top of the roll 5 which, rotating forwardly drops the bats out of the machine. The ejectors 23 are non- rotatably pinned to a transverse bar 25 which has rigidly fixed at its ends angle arms 26 secured to a shaft 27 pivoted in the machine frame. The shaft 27 is rocked by a rod 29 forming the core of a solenoid 30. The photocell 31 is connected to a timer 39 which is actuated, upon the breaking of the beam of light from the light source 32, by the presence of the bats 18 and a selected time after the breaking of that beam the timer closes a circuit, actuates the solenoid 30 which throws the ejectors 23 forwardly to eject the bats. Hot water is directed through orifices in a pipe 19 toward the rolls in the form of a spray.
Patent GB-1335808-A (GB)
Title: Isoindoline derivatives
IPC: C07D209/46
Filed: 1972-05-02
Abstract: 1335808 Isoindoline derivatives RHONEPOULENC SA 2 May 1972 [4 May 1971 23 Feb 1972] 20369/72 Heading C2C Novel compounds I wherein X is halo, 1-4 C alkyl, 1-4 C alkoxy, 1-4 C alkylthio, phenoxy or di-(1-4 C alkyl)- amino and n is 0 or 1-3, and acid addition salts thereof are prepared by reacting compounds II  in which Ar is phenyl or alkylphenyl with 1- methyl-piperazine, or by reacting compounds IV with 1-chlorocarbonyl-4-methyl-piperazine. Compounds IV are prepared by partial reduction of compounds V Compounds V are prepared by reaction of phthalic anhydride with compounds VI 3 - Amino - 6 - dimethylamino - pyridazine is prepared by reaction of 3- amino-6-chloropyridazine with dimethylamine. Pharmaceutical compositions useful as tranquillizers and anti-convulsants comprise a compound I together with a suitable diluent or carrier for enteral or parenteral administration.
Patent GB-1273925-A (GB)
Title: An anticavitation device
IPC: F17D1/20
Filed: 1971-04-19
Abstract: 1,273,925. Tubes. COMMISSARIAT A L'ENERGIE ATOMIQUE. 19 April, 1971 [13 Feb., 1970], No. 20486/71. Heading F2P. [Also in Division G6] In a fast, sodium cooled, nuclear reactor, cavitation in the sodium is prevented by a throat restriction in the duet enclosing the full assembly. Coolant sodium enters the fuel duct, 1, through the orifices 4, 5 in the side wall, 2 and flows upwards in the direction of arm 7. To prevent cavitation, the coolant flowing in through the orifices 5 is directed upwards by the nozzles 11, 12, in the annular space between 12 and 2. The diaphragm 15 throttles the flow in the annular space.
Patent GB-134408-A (GB)
Title: Improved Smoker's Pipe Cleaner.
Inventor: PORTER ARTHUR KEATES
IPC: A24F9/10
Filed: 1918-12-11
Abstract: 134,408. Porter, A. K. Dec. 11, 1918. Cleaners for tobacco pipes.-A bowl scraper is formed of sheet metal with oppositely bent bevelled flanges 4, 5 extending to the nose 6 so that the material scraped from the bottom of the bowl is raised and does not fill the bore in the stem. The cutting-edges may be serrated.
Patent GB-631730-A (GB)
Title: Improvements in and relating to circuits for a plurality of electric discharge lamps
IPC: H05B41/18
Filed: 1946-07-10
Abstract: 631,730. Control systems for space discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. July 10, 1946, No. 20627. Convention date, July 11, 1945. [Class 38 (iv)] A plurality of discharge or fluorescent lamps 1, the cathodes 2, 2 being filamentary or otherwise, are connected in parallel across an A:C. supply circuit 6, 6 and controlled by a switch 8. Each lamp has a stabilizing inductance 7 in series, and a starting inductance 10 in parallel, with a condenser 13 to give resonance at starting all starting circuits are in parallel and connected across the supply circuit by a switch 12 which is opened after starting. The high impedance between adjacent lamps ensures stability at starting. The condensers 13 may be arranged in the starting circuit 9 or in the lamp circuit 5 and both arrangements may be run in parallel. Windings for supplying filament heating currents may be placed on the inductances 10, which may have a core in common with the inductance 7 for the same lamp. Specification 569,685, [Group XL], is referred to.
Patent GB-532318-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: A44B19/30
Filed: 1939-07-17
Abstract: 532,318. Sliding-clasp fasteners. TULLIO, A. DI., and LIGHTENING FASTENERS, Ltd. July 17, 1939, No. 20768. [Class 44] A locking device for the slider of a sliding- clasp fastener in which the locking member engages the legs of the fastener members by movement substantially parallel to the plane of the fastener is housed within the upper member of the slides and comprises (shown separted) a slider body with upper and lower flanged members 7, 6, Fig. 3, defining the usual guide channels, a cover 4, Fig. 4, secured over member 7 by adhesive, with positioning projection 14 engaged in apertures 15, a pull-tab 5, Fig. 5, and a spring locking member, Fig. 6. The slider body, cover, and tab are of moulded non-metallic material such as a cellulose acetate composition. The locking member is of spring steel or other resilient metal. The tab has a metal pivot pin the ends 24 of which are held in recesses 21 by projections 22. Normally the tab rests against the part 20 of the cover. Member 7 has a V-form groove 8 in which the spring locking member is housed. This member has a segmental portion 9 of slightly greater diameter than the distance between the substantially parallel limbs 9a which are of different lengths and end in prongs 13. These prongs depend through apertures 10 and normally engage between the outer ends of the fastener members by resilient action. When the tab is turned down, the pivot end lies within the part 9 of the spring, but when the tab is raised, this end engages betweeen the shoulders 9b, separates limbs 9a by cam action, and releases the slider. A recess 16a provides clearance for the end of the tab, which has a transverse wire the flush ends 23 of which take the wear. Groove 8 is of sufficient width to allow the requisite movements of limbs 9a. Alternatively, the limbs 9a separate by spring action and the tab is bifurcated to embrace the limbs and positively move them to locking position when the tab is turned down. A single locking member may be used. In a further modification the pull tab is in two parts which normally lie flat at opposite sides of the slider and are pivoted on an axis longitudinal of the slider, each part having means for releasing the locking member when the two are raised to operate the slider.
Patent GB-335296-A (GB)
Title: A lift for use within, and adapted to a waterless gasholder
IPC: F17B1/013
Filed: 1929-07-06
Abstract: 335,296. Dempster, Ltd., R. & J., Knight, N. H., Andrews, C., and Waterless Gasholder Go., Ltd. July 6, 1929. Balancing.-A lift 3 for giving access to the piston of a waterless gas-holder is suspended by a wire rope 6 leading over pulleys 7 arranged in a housing 4 on the roof of the holder and connected to a counterweight 8, the lift being caused to descend by liquid or tar liquor supplied from a fixed tank 15 on the roof to a tank 13 on the lift through a valve-controlled pipe when the lift is in its top position. When the lift is required to ascend, a valve 19 is opened and the liquor is run out through a seal pot 24 to the edge of the piston. The housing 4 on the roof and a similar housing 11 on the piston have flared inlets 5, 12 to facilitate the entrance of the lift which is steadied or guided during its movement by a heavy chain 17. The lower end of the chain 17 may be arranged, to coil itself in a chamber 18 on the piston as the lift descends or may be attached to a point on the piston not immediately below the lift. The diminishing weight of the chain is arranged to compensate for the varying load produced by the. ropes. The weight 8 slides in the well 9 of a lift giving access to a platform 29 from which the lift is entered. Suitable lift brakes and means for securing the lift to the lower housing are provided. The Provisional Specification states that acceleration of the lift during its descent may be prevented by providing counterbalance weights automatically disconnected at various levels by fixtures having differently sized apertures.
Patent GB-1316664-A (GB)
Title: Process for the production of ferromagnetic chromium dioxide
IPC: G11B5/706
Filed: 1970-04-30
Abstract: 1316664 Ferromagnetic chromium dioxide BAYER AG 30 April 1970 [2 May 1969] 20776/70 Heading ClA [Also in Division H1] Ferromagnetic chromium dioxide is prepared by reducing an aqueous chromate or polychromate solution by means of an organic substance at 300-400 C. and 250-350 kg./cm.<SP>2</SP> to form chromium oxide hydrate green, then dehydrating and tempering the hydrate at 300-900 C. to give chromium oxide (mixture of Cr III and Cr IV) which is then oxidized under hydrothermal conditions with chromium trioxide at 50-400 C. and 50-500 kg./cm.<SP>2</SP> to give CrO 2 . The organic substance used as reducing agent may be molasses, formaldehyde, formates, lignite powder. A modifier may be included to control particle size, e.g. oxides and/or fluorides of Mn, Co, Fe, Nb, Ru, As, Sb, V, Te especially TeO 2  and Sb 2 O 3 .
Patent GB-305680-A (GB)
Title: Improvements in and relating to the production of nickel-oxide electrodes for alkaline accumulators
IPC: H01M4/26
Filed: 1927-08-08
Abstract: 305,680. Bacsa, J. Aug. 8, 1927. Electrodes; electrolytes.-Electrodes for accumulators are made from nickel, cobalt, or iron by first electrolytically depositing the metal on a carrier of sheet metal or wire fabric, using a neutral salt solution. The carrier with its deposit of metal is then made the anode in an alkaline solution whereby the deposited metal becomes oxidized. The third step consists in reducing the oxidized metal by again making it the cathode in a neutral salt solution. The various processes are repeated until the coating of active material is sufficient. If the carrier is of the same metal as the metal from which the active material is formed, the first step consisting in the deposition of the metal on the carrier may be omitted. A cadmium electrode may be made by a similar process but the first step, namely, the deposition of metallic cadmium, cannot be omitted but must be interposed between the third and second steps. The anodic oxidation of the metal deposited in the first step may be effected in an eighteen to twenty per cent solution of caustic soda, a potential difference of 1.7 to 2 volts being used. A nickel or cobalt oxide electrode prepared as above may be used as the positive electrode in an accumulator having an alkaline electrolyte; the negative electrode may consist of ferrous oxide or metallic cadmium.
Patent GB-391198-A (GB)
Title: Improvements in and connected with the manufacture of waffle sweetmeats
IPC: A21B5/02
Filed: 1931-07-22
Abstract: 391,198. Waffle-makingapparatus. DIMITRIOU, S. C., 13, St. Anne Street, Liverpool. July 22, 1931, No. 20904. [Class 28 (i).] In apparatus for making waffles having two cooking-plates 1, 2 hinged together, or similarly movable in relation to each other, and between the operative faces of which the waffle is made, one or both of the plates is or are provided within the edges with blades 18 projecting from the cooking surfaces and forming an enclosure by which the size and shape of the waffles is controlled and their outside edges moulded, the edges of the blades operating in connection with shallow grooves 19 in the operating surface of the other plate. An additional blade 19<x> may be provided across the centre of one of the plates co-operating with a corresponding groove 20 in the other plate. The operative surfaces of the plates may be provided with shallow narrow grooves, e.g. of V or semicircular cress section, in a cross checkered or other ornamental form. As shown, the upper plate 2 has hinge pins 5 journalled in bearings 4 and the back lower angles 16 of the upper plate are rounded. The plates may be heated by electrical heating' units 13, 14, or they may be heated by gas or other heating medium.
Patent GB-1152861-A (GB)
Title: Secogonane and Gonane Compounds
IPC: C07J75/00
Filed: 1966-05-11
Abstract: 1,152,861. 8,14-Secosteroids and steroids obtained therefrom. MERCK & CO. Inc. 11 May, 1966 [14 May, 1965], No. 20926/66. Headings C2C and C2V. The invention comprises (1) a process in which a compound of the formula is reacted with a compound of the formula (a) at a pH of 3 to 6 and in the absence of extraneously added acid to give a seco-steroid or -D-homo-steroid of the formula or (b) in the presence of a C 2-6  aliphatic carboxylic acid to give a steroid or D-homo-steroid of the formula (in which formulµ R 1  is H, C 1-5  alkyl or aralkyl; R 2  is H or C 1-5  alkyl; Y is H, carbalkoxy, carbaralkoxy or carboxamido; and X is methylene or ethylene, Y being H if X is ethylene); (2) process (a) above including the additional step of reacting the product in solution in an organic solvent with a C 2-6  aliphatic acid to give a steroid or D-homo-steroid as in (b) above; (3) process (a) above including the additional step, when Y is other than H, of either reacting the product in an organic solvent with a base to give the corresponding 8,14- secosteroid substituted in the 15-position with a -COOH group, or of reacting the product in an organic solvent with an acid as in (2) above to give the corresponding steroid, and then similarly reacting this with a base to give the corresponding 15-carboxy-steroid; (4) novel 8,14-seco-steroids of the formula (wherein R 1  and R 2  are as defined above, and Y is carbalkoxy, carboxy, carbaralkoxy or carboxamido); and (5) novel steroids of the formula (wherein R 1  and R 2  are as defined above, and Y is carbalkoxy, carbaralkoxy, carboxamido or carboxy). The steroids and D-homo-steroids produced in process (1) (b) above may if desired, be selectively hydrogenated at the #<SP>14</SP> double bond to give the corresponding 1,3,5(10), 8-tetraenes with a 14α-hydrogen atom. These on reduction with potassium in liquid ammonia give the corresponding 1,3,5(10)-trienes having 8#, 9α, 14α-hydrogen atoms. Compounds containing a 15-CO 2 H group produced in process (3) above may be resolved with the aid of an alkaloid; they may also be de-carboxylated. Reference has been directed by the Comptroller to Specification 991,592.
Patent GB-1504153-A (GB)
Title: Testing machine designed to act horizontally on specimens to be tested
IPC: G01N3/02
Filed: 1975-05-16
Abstract: 1504153 Testing-machine suspensions CARL SCHENCK AG 16 May 1975 [11 June 1974] 20946/75 Heading G1S [Also in Division F2] A fatigue or resonance testing machine frame, including a loading device 6, 7 and a chuck 9 for specimens to be tested, is suspended from supports 5 by pendulum beams 4 so that horizontal vibrations of the machine are not transmitted to the supports. As shown the machine comprises chuck heads 9 for gripping a specimen 8 between a countermass 2 and crosshead 3, and cylinders 6, 7 for applying preloads and alternating loads to the specimen. The beams 4 may take the form of leafsprings or may be rods with flexure joints or rotary bearings, e.g. self-aligning spherical bearings, at each end. As in Fig. 3 (not shown) each beam may comprise two parallel leaf-springs (24), (25) each attached between pivotally mounted crossbars (22), (23) whose bearings may include height adjustment means. Elements 14 may be provided to damp horizontal movement of the machine frame and to lock the machine frame to its supports when necessary.