baber/WOPTO huggingface dataset:
Patent GB-1195047-A (GB)
Title: Purification of Acetone
IPC: C07C49/08
Filed: 1967-08-29
Abstract: 1,195,047. Purification of acetone. MITSUBISHI CHEMICAL INDUSTRIES Ltd. 29 Aug., 1967 [31 Aug., 1966], No. 39509/67. Heading C2C. A process for the purification of crude acetone (manufactured by the oxidation of propylene in the presence of a catalyst containing a salt of a metal of the platinum group and a halide of a heavy metal which possesses at least two valency states) comprises pre-treating the crude acetone to remove by-products of lower boiling- point, and then distilling the crude acetone in a rectifying column to recover acetone from the top of said column while by-products of higher boiling-point are removed from the bottom of said column, in which distillation step the acetone vapour ascending in the rectifying column is counter-currently contacted with an alkali-containing acetone liquor in the upper part of the column. A side-stream comprising halogen-containing by-products is withdrawn from a mid-part of the column. The catalyst preferably contains palladium chloride and copper chloride, whilst the alkali in the alkalicontaining acetone liquor is an alkali metal carbonate and/or alkali metal hydroxide.
Patent GB-1091654-A (GB)
Title: A receptacle for a flat electrical tab
IPC: H01R13/115
Filed: 1966-09-05
Abstract: 1,091,654. Two-part couplings. AMP. Inc. Sept. 5, 1966 [Oct. 5, 19651, No. 39560/66. Heading H2E. A flat tab (not shown) is gripped between socket contact springs 5 which are re-entrant extensions of the side walls 3, 4 of U-shaped member 1. Projections 7 guide the tab into the socket and tongue 8, stamped from a side wall, helps to keep the tab between the contacts. When the tab is in the socket the contact springs are parallel for optimum contact. A crimped connection is made to the rear of the socket by a wire (10) (Fig. 3, not shown).
Patent GB-899302-A (GB)
Title: Improvements relating to the electrophoretic coating of articles
IPC: H01J9/10
Filed: 1959-11-23
Abstract: 899,302. Electro-phoretic coating apparatus. BAILEY, J. W. (Sylvania Electric Products Inc.). Nov. 23, 1959, No. 39734/59. Class 41. In an apparatus for coating articles electrophoretically, e.g. tungsten filaments coated with a refractory oxide deposited from a suspension thereof in nitrocellulose lacquer, the articles are passed automatically by an indexing carrier through a plurality of work stations including, a first and second coating bath, a rinsing station and a drying station, the last two of which may be in several stages. The double coating is stated to provide a crack-free coating of the filament when heated, the final coating being of lower density. A coating station, Fig. 7, consists of a glass cup member 209 mounted in a housing 201 and is adjustable for height so that the required length of uncoated filament is predetermined. The cup has an overflow 211 and liquid suspension supply line 216, to keep the coating liquid at the desired level, and is provided with a magnetic stirrer 221, rotated by a magnet 205 mounted below it. An electrode of wire mesh 225 has an insulated bottom member 227, and is supported by the lead-in strap 231. The coiled tungsten filament is supplied from a transfer turret machine (not shown), and is gripped between spring-loaded jaws by one leg of the filament only. The jaw carrier descends a predetermined amount to immerse the filament in the coating medium 215 and deposition proceeds for a standard time, e.g. ¢ to 2 seconds at 1000 to 1500 v. The insulating bottom element 227 provides a calm surface to the stirred suspension. The energy is then cut off and the coated filament raised out of the bath. A second similar coating operation follows, and in succeeding stations the filament is washed with a solvent (twice) and heated in four air drying stages. The filaments are finally fired at 1670‹ C. for seven minutes. The washing solvent is preferably petroleum ether and amyl acetate followed by petroleum ether alone. The movements of the filaments into and out of the work stations, which are arranged on a rotary frame, and movement from one station to the next are rendered automatic by Geneva mechanism with associated gear providing the required movements at predetermined intervals of time. U.S.A. Specifications 2,442,863 and 2,442,864 are referred to.
Patent GB-1278383-A (GB)
Title: Heated domestic bath panel
Inventor: GROVES COLIN STUART
IPC: F24D13/02
Filed: 1970-08-18
Abstract: 1278383 Space heating radiators CS GROVES 18 Aug 1970 39800/70 Addition to 1204751 Heading F4S [Also in Division H5] The bathroom heating panel of the parent invention is modified by inserting into the tubular heating-fluid conduit 3 an electric immersion heating element 20 which can be thermostatically controlled (e.g. by a thermostat 17, Fig. 3, not shown) to heat theliquid (e.g. an oil) to a temperature of 180‹ F. The heating element as shown is mounted preferably in a lower horizontal limb of the conduit 3.
Patent GB-1210833-A (GB)
Title: Improvements in or relating to semi-trailer vehicles
Inventor: BOWDEN WILLIAM TURNER
IPC: B60G11/14
Filed: 1968-08-21
Abstract: 1,210,833. Semi-trailer suspensions. PEAK TRAILERS Ltd. 23 July, 1969 [21 Aug., 1968], No. 39952/68. Heading B7D. A semi-trailer vehicle suspension system comprises a frame formed of members 10, 11, 12 on which a pair of "T"-frames 16 are pivoted about pins 15, each frame leg 16b having extending therefrom a stub axle 17 carrying double wheels 19, and there extending between each frame 16 and its adjacent frame member 11 a coil spring 24 through which extends an hydraulic damper 27. Stops 40, 41 limit the spring movement. Brake shoes within drums 30 are operated by rod 32 either by a hand brake lever by means of rod 35, or by a pneumatic actuator by means of rod 36. Gusset plates 21 support the spring 24 and also bearings 22 for pivot pins 15. The frame formed of members 10, 11 and 12 may support the two pairs of "T"-frames 16, or alternatively two systems as above described may be provided in tandem, Fig. 5. In this latter embodiment the upper ends of the springs 24 contact the longer sides of bell-crank levers 42 pivoted at 43, and connected between their shorter sides by an equalizing rod 46. The wheels on each side of the trailer vehicle may alternatively be hydraulically connected, and more than two sets of wheels provided.
Patent GB-1545124-A (GB)
Title: Wishbone boom for a wind-propelled vehicle
IPC: B63B35/79
Filed: 1977-09-26
Abstract: The rig is provided with a wishbone boom of two bars curved to the outside and clamped at their ends in V-shaped wishbone pieces (2). To facilitate transport, the bars are each subdivided into two sectional pieces (3, 3a, 4, 4a) which can be joined together by push-in connections (1). <IMAGE>
Patent GB-1514307-A (GB)
Title: Dynamoelectric machine stators and stator laminations
IPC: H02K1/16
Filed: 1975-10-01
Abstract: 1514307 Stators GENERAL ELECTRIC CO 1 Oct 1975 [16 Oct 1974] 40130/75 Heading H2A The winding slots 16, 17, 18 in a stator lamination are arranged around a central circular opening therein in the illustrated array with two diametrically-opposed pairs of slots 16 of a first cross-sectional area, a respective group of three slots 17 of a second crosssectional area adjacent each slot 16, and a respective pair of slots 18 of a third crosssectional area adjacent each slot 17, the third area being larger than the second which is larger than the first. The same stator formed from a stack of such laminations can be used in permanent-split capacitor or capacitor start motors or in resistance-split phase motors using alloy wire stator auxiliary windings, backlash auxiliary winding sections or high current density auxiliary windings on the stator. The slots 16 may each have 30 to 50% and the slots 17, 75 top 90%, of the area of each slot 18. A primary aluminium winding 22 may have two coil groups each of five concentric coils located in slots 17 and 18 as shown, each group forming a primary magnetic pole on axis 28, and an auxiliary copper winding 23 may have two coil groups each of four concentric coils located in slots 16, 17 as shown, each group forming an auxiliary magnetic pole on an axis normal to axis 28. The winding arrangements may incorporate features disclosed in U.S. Specifications Nos. 3,515,919; 3,663,057 and 3,774,062. The laminations are punched from strip material, Figs. 4, 5 (not shown), so that the flux lines near the flat segments 12, 13 are across the grain of the material. The laminations may each have four bolt-receiving holes 21 near the intermediate sized slots 17, or two such holes 21 on one side of axis, 28 and a single hole (30), Fig. 1 (not shown), on the other side of axis 28 and on the auxiliary pole axis.
Patent GB-1341488-A (GB)
Title: Electrical connector
IPC: H01R13/516
Filed: 1971-08-26
Abstract: 1341488 Two-part couplings VIKING INDUSTRIES Inc 26 Aug 1971 [26 Aug 1970] 40139/71 Heading H2E One part of a two part coupling comprises a contact-housing frame 12 for coupling to a complementary frame of the other part and has a pair of stepped flanges extending from each end, a hood 14 having a wire-receiving aperture 34 and slots for receiving the frame flanges at either end, and a coupling member or clamp 16 having slots for the frame flanges at one end and hood engaging projections 66 for entering the slots in the hood. The frame 12 has a shroud 22 enclosing the contacts 18 and identical fastener portions 26, 28 at each end comprising flanges 48, 48A with stepped parts 64A. The resilient insulating hood 14 encloses the rear portion 24 of the frame where wires are connected to the contacts 18 and comprises a first end 30 with a fastening portion 36 consisting of two flanges 38, 40 forming two slots 44, 46 which can slide over either fastener portion 26, 28 of the frame (but 26 as shown) so that the flanges 48 enter the slots 44, 46; the other end of the hood engaged by the clamp comprises an aperture 34 for receiving the wires and slots 70, 72 and flanges 78, 80 formed in the hood side-walls 50, 52. The clamp 16 comprises a resilient housing 54 with two slots 56, 58 for engaging the flanges 48A (as shown) on the frame, fingers 60, 62 with hooks 63 for fitting behind the stepped parts 64A, two projections 66, 68 which are received in the hood slots 70, 72 and two slots 74, 76 which receive the hood flanges 78, 80. A clamp member 82 is slidably mounted on the clamp by a screw 86 which is turned so that the clamp member bears against the wires in the hood aperture 34. Thus the clamp can be attached to the frame in either direction with the wires leaving from either end as desired. Two mated coupling parts are held together by screws (96, 98) extending through an aperture (100) in the hood and a hole (12) in the frame where it engages threaded inserts (104, 104<SP>1</SP>). The contacts (Figs. 7-9, not shown) are formed from a folded sheet and comprise a loop (120), a tang (136), an end wall (138), side walls (130, 132) inclined at, say, 45 degrees to a base portion and cutting blades (126, 128) perpendicular to the side walls. An insulated wire (124) is inserted to abut the end wall (138) and the side walls (130, 132) are bent towards each other so that the blades (126, 128) cut the insulation. In another contact (Fig. 10, not shown) the cutting blades are omitted and the wire is connected by crimping and/or soldering, there being indentations (146, 148) in the side walls for centring the wire conductors while the end wall (150) serves additionally to prevent flow of solder.
Patent GB-1213078-A (GB)
Title: Explosive compositions
IPC: C06B23/00
Filed: 1969-08-12
Abstract: 1,213,078. Explosive compositions. IMPERIAL CHEMICAL INDUSTRIES OF AUSTRALIA & NEW ZEALAND Ltd. 12 Aug., 1969 [6 Sept., 1968], No. 40311/69. Heading ClD. A gelatin type dynamite composition comprises 8-18À5% by weight of a liquid explosive nitric ester, 0À2-1% by weight of nitrocellulose, an inorganic oxidizing agent, a carbonaceous combustible material, and, as a plasticity promoting agent, a condensation product of 2-12 moles of ethylene oxide with one mole of an alkyl phenol, an alkyl cresol, a long-chain alcohol or a derivative thereof, a long chain amine or carboxylic acid, or an amide or alkylolamide of a long chain carboxylic acid. Many suitable ethylene oxide-reactive compounds are given. The oxidizing agent may be ammonium nitrate or sodium nitrate, the nitric ester nitroglycerine, and the carbonaceous material asphalt, naphthalene, sugar, urea, hexamethylene tetramine, sawdust, wood meal, wheat or tamarind flour, dextrin, or starch. Optional ingredients are water, guar gum, calcium carbonate, china clay, barytes, ammonium phosphate, o-nitrotoluene, and polyacrylamide. The presence of the plasticity promoting agent permits reduction in the amount of nitric ester and increase in the amount of oxidizing agent. The composition may be extruded into paper shells to form cartridges.
Patent GB-1171461-A (GB)
Title: Improvements relating to the Focussing of Microscopes
Inventor: DEELEY EDWARD MOUNTFORD
IPC: H01J37/21
Filed: 1965-09-23
Abstract: 1,171,461. Cathode-ray tube circuits; monitoririg adjustment of electron microscope. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 23 Dec., 1966 [23 Sept., 1965], No. 40521/65. Headings H4F and H4T. An arrangement for focusing an electron microscope utilizes, as a criterion of correct focus, the change produced in the amplitude of the high-frequency harmonic content of a video signal, derived by scanning the final image of the microscope, as the latter goes through the position of correct focus. Two maxima occur on either side of this position and the focusing is adjusted until a signal of minimum amplitude occurs. In order to produce clearly defined peaks and in accordance with the invention a frequency band within the range of 35-75% of the upper cut-off frequency is utilized. In Fig. 1, which shows an embodiment in which the focus is automatically adjusted but which allows of manual adjustment by an operator viewing an indicator, the image on the fluorescent screen 5 of the electron microscope is directed via an image intensifier 8 on the target of a Vidicon pick-up tube 11. The output from the latter, which may be viewed on a monitor 13, is supplied via circuit 19, which removes the synchronizing signals (to prevent spurious operation) and replaces them by a sine wave from source 20, to a band-pass filter which, in accordance with the invention, passes a band in the range of 35-75% of the highest anticipated harmonic component. The filtered signal is then supplied to a mean squaring circuit (averaging detector) 17 the output of which may be observed on a meter 18 when, during manual adjustment the operator adjusts the focusing current in coil 3 by adjustment of potentiometer 21. For automatic operation the output of circuit 17 is inverted and supplied to the two inputs of a differential pair circuit 24, directly and via a circuit 29 including a rectifier and a chargeholding capacitor. This arrangement operates to switch a bi-stable trigger 25 between its two states as the output of circuit 17 rises and then falls when the image on screen 5 moves through the position of correct focus, the output of trigger 25 being employed to reverse the slope of the waveform of a ramp generator 23 which, via a current amplifier 22 and stabilizing circuit 30, supplies focusing current to the coils 3 of the electron microscope. The cycle then repeats and the focus is thereby maintained close to the position corresponding to the minimum between the two maxima in the output signal of the filter. The magnification of the image on screen 5 may be varied by varying the current in coils 6, means of switch 31 which is ganged to switch 32 so that a compensating change in the focusing voltage is effected. Circuit details of part of the automatic control elements and of the mean squaring circuit of Fig. 1, are described with reference to Figs. 2 and 3 (not shown), respectively.
Patent GB-900750-A (GB)
Title: Improvements in remote controlled fluid-flow control valves
Inventor: PICKUP HARRY
IPC: F16K31/126
Filed: 1959-12-01
Abstract: 900,750. Valves. SIMON Ltd., HENRY. Nov. 24, 1960 [Dec. 1, 1959], No. 40807/59. Class 135. A remote control valve for regulating or controlling the flow of air in a pipe lined comprises a valve e operated by a bellows and having its interior in communication with a two-way valve i which can be operated to place the bellows interior under atmospheric pressure or under a higher pressure, the valve being closed by its bellows when the higher pressure is present in the bellows and being opened by the pressure in the pipe line on the upstream side of the valve when the pressure in the bellows is atmospheric. The interior of the bellows is pressurized by air supplied by a pump j. In the modification shown in Fig. 2, the interior of the bellows is filled with a liquid supplied from a reservoir m, the surface of the liquid in the latter being acted upon by pressurised air. In operation, the valve i is actuated to put the reservoir in communication with the atmosphere, the inlet pressure in the pipe line d then opening the valve at a rate controlled by a restricted passage g located between the bellows and the reservoir.
Patent GB-907497-A (GB)
Title: Tertiary phosphine sulphides and process for their preparation
IPC: C07F9/6568
Filed: 1960-11-29
Abstract: The invention comprises tertiary phosphine sulphides of the formula <FORM:0907497/IV (b)/1> where Rx and Ry are each hydrogen, alkyl or aryl, or together make up an alicyclic ring, and X is <FORM:0907497/IV (b)/2> or <FORM:0907497/IV (b)/3> wherein Ra and Rb are substituted or unsubstituted alkyl radicals, in which any linear carbon chain contains 1-18 carbon atoms; or substituted or unsubstituted aryl or saturated alicyclic radicals; Ra and Rb being attached to the phosphorus by way of a carbon atom; and R1-R6 are alkyl radicals of 1-10 carbon atoms; and their preparation by reacting the corresponding secondary phosphine sulphide HX = S (see Specification 902,803) with an aldehyde or ketone RxCORy at 0-200 DEG C., preferably in the presence of an inert organic solvent.  The compounds of the invention are herbicides (see Group VI). Specification 902,801 also is referred to.ALSO:The invention comprises herbicidal compositions containing an inert carrier and, as active ingredient, a compound of formula <FORM:0907497/VI/1> where Rx and Ry are each hydrogen, alkyl or aryl, or together make up an alicyclic ring, and X is <FORM:0907497/VI/2> wherein Ra and Rb are substituted or unsubstituted alkyl radicals, in which any linear carbon chain contains 1-18 carbon atoms; or substituted or unsubstituted aryl or saturated alicyclic radicals; Ra and Rb being attached to the phosphorus atom by way of a carbon atom; and R1-R6 are alkyl radicals of 1-10 carbon atoms (see Group IV (b)). Specifications 902,801 and 902,803 are referred to.
Patent GB-1330208-A (GB)
Title: Oxidation of vicinal glycols in the presence of organic peroxides and cobaltous compounds
IPC: C07C51/285
Filed: 1971-09-02
Abstract: 1330208 Carboxylic acids PROCTER & GAMBLE CO 2 Sept 1971 [4 Sept 1970] 40983/71 Heading C2C [Also in Division B1] Carboxylic acids are prepared by the oxidative cleavage of vicinal glycols with oxygen or air in the presence of a cobalt (II) compound and an organic peroxygen compound. Vicinal glycols of formula in which the two R's may be the same or different and each represents hydrogen, alkyl (1-30 C), aryl, aralkyl or -(CH 2 ) n COOM in which n is an integer from 1 to 20, M is hydrogen, alkyl (1-10 C) or aryl, or the two R's may be joined to form a ring, may be oxidized and many examples are listed. Cobalt compounds preferred are salts and the peroxygen component may be an organic hydroperoxide, a peroxy acid R<SP>1</SP>C(O)OOH, or an organic peroxide R<SP>1</SP>OOR<SP>11</SP>, where R and R<SP>11</SP> are alkyl (1-20 C) or aryl, or peroxyformates and the peroxy compound may be generated in situ by action of air or oxygen on aldehydes. The reaction may take place in the presence or absence of a solvent such as hydrocarbons, organic acids, esters, sulphoxides, sulphones, alcohols, ketones, aldehydes and amides. Examples describe the oxidation of 9,10-dihydroxy stearic acid to azelaic and pelargonic acids, and 1,2 - dihydroxyoctane, 1,2 - dihydroxydecane, 1,2 - dihydroxydodecane, 1,2 - dihydroxytetradecane, 1,2 - dihydroxyhexadecane and 1,2- dihydroxyoctadecane, vicinally hydroxylated soy-bean oil, tallow, lard, neats-foot oil and corn oil fatty acids, and 1,2-diphenyl-1,2-dihydroxyethane, to the respective carboxylic acids, the use of various solvents also being illustrated.
Patent GB-893583-A (GB)
Title: Improvements in or relating to illuminated handrails
IPC: E01F9/669
Filed: 1959-12-02
Abstract: 893,583. Handrails. ALUMINIUM AKTIENGESELLSCHAFT MENZIKEN. Dec. 2, 1959 [Sept. 17, 1959], No. 41039/59. Class 45. [Also in Groups XI and XXV] An internally illuminated handrail comprises an elongated hollow casing formed with a window and removable means adjustably mounted in the casing for supporting a fluorescent tube and a starter and for reflecting rays from the tube through the window. In the form shown, the rail consists of a lower part 5 mounted by bolts on parapet posts (not shown) and having a rear wall 9, and an upper part 10 supported on the upper edge of the wall 9 and on a rail 16 which is caused by spaced struts 14 mounted at the front edge of the lower part. The front edge has a groove 6 in which is inserted the lower edge of a window 8, the upper edge of which is received in a groove on the underside of the rail 16. The parts 5, 10 are connected at each end by bolts 28, the lower ends of which pass through the part 5, and the upper ends are formed with pointed heads below which are diametrically opposed shouldered recesses 28a. The upper part 10 carries springs 27 having bent-over tongues 27a which engage below the shoulders 28a. The bolts have shaped lower ends 28b so that they can be turned through 90 degrees by a special spanner, thereby releasing the bolts from the springs 27. The part 5 supports an arcuate plate 37 to which a curved plate 39a is secured by bolts 40 in open-ended slots 39b. The plate 39a carries a curved reflector rail 39 to which a starter 47 and supports 46 for a fluorescent tube 43 are secured. Intermediate hanger 42 formed with a hook engaging the top of the rail and a leg abutting the reflector surface are provided to support the tube 43 intermediate its ends. The centre of curvature of the plate 39a coincides with the tube 43 so test adjustment of the position of the rail 39 will not affect the position of the tube inside the casing. The rail 39 and associated parts can be removed from the casing as a unit.