baber/WOPTO huggingface dataset:
Patent GB-789731-A (GB)
Title: Improvements in the production of ketoximes
Filed: 1955-03-28
Abstract: A process for the production of ketoximes comprises introducing nitric oxide and chlorine in a molecular proportion of at least 5 mols. of nitric oxide for each mol. of chlorine into a saturated aliphatic or cyclo-aliphatic hydrocarbon while it is being irradiated by light, washing the reaction mixture with such amounts of dilute, about 0.5 to 2 normal, caustic alkali solution which are sufficient for taking up all acid constituents of the reaction mixture, isolating the mixture of bis-nitroso and chlornitroso compounds formed by distilling off the unreacted hydrocarbon or by leading the washed reaction mixture through an adsorption column packed with alumina or silica gel or active carbon and extracting the adsorbed products by means of polar solvents, and converting them into oximes by heating them or their solutions at about 50 DEG  to 150 DEG  C., or separating the chloronitroso compound from the bis-nitroso compound and converting the chloro-nitroso compound to an oxime by irradiating it with red light, or by heating it to about 50 DEG  to 150 DEG  C. or by reducing it catalytically or by means of reducing agents, and converting the bis-nitroso compound into an oxime by heating it at about 50 DEG  to 150 DEG  C. or by treating it with alumina or silica gel.  Hydrocarbon starting materials mentioned include cyclohexane, cyclopentane, cyclo - octane, methyl-cyclopentane, methylcyclohexane, heptane or dodecane.  If a hydrocarbon saturated with the corresponding bis-nitroso compound is employed as starting material the bis-nitroso compound formed during the reaction crystallizes out and can be filtered off and converted into an oxime by heating it separately at about 50 DEG  to 150 DEG C. whilst the remaining solution is worked up by the methods described above.  Inert diluents such as carbon tetrachloride may be employed and the process may be carried out at elevated or atmospheric pressure.  The hydrogenation may be carried out in the presence of platinum oxide, palladium or nickel.  Reducing agents mentioned include iron or zinc and hydrochloric acid, hydrazine, hydroxylamine, alkali and alkaline earth metal sulphides, thiosulphates and bisulphites, alkali metal aluminium and borohydrides.  In examples: cyclohexanone oxime is obtained using cyclohexane as starting material (1, 6-16); cyclo-octanone oxime is obtained using cyclo-octane (2) and (3); a mixture of heptanone oximes is obtained using heptane as starting material (4); and methyl cyclohexanone oxime is obtained using methyl cyclohexane as starting material (5).
Patent GB-1523881-A (GB)
Title: Magnetic alloys
IPC: C22C38/10
Filed: 1975-03-04
Abstract: 1523881 Magnetic alloys TELCON METALS Ltd 3 March 1976 [4 March 1975] 8948/75 Heading C7A A magnetically soft alloy comprising:- Prepared by casting, hot rolling to strip, heattreating at 830‹C, quench into iced brine, cold roll anneal in hydrogen for two hours at 660-740‹C and slow cool and may be used in stator laminations in aircraft electric generators.
Patent GB-862959-A (GB)
Title: Improvements in or relating to electric heaters
IPC: H05B3/00
Filed: 1957-03-19
Abstract: 862,959. Electric heating resistances. THERMEL Inc. March 19, 1957 [March 26, 1956], No. 8994/57. Class 39 (3). [Also in Group XXII] An electric heating resistance A. C, Fig. 9, of the type made by inserting a resistance wire within a conductive sleeve packed with refractory insulation such as magnesia larger than 325 mesh and swaging, is mounted in a thermally conductive retainer 100,102 shaped to form a heating surface and the retainer and sleeve are bent to an arcuate shape with the heating surface 20a on the concave side of the retainer. The copper or aluminium retainer may be extruded in a form with grooves 21<SP>1</SP>, Fig. 4 in which the resistances 10 are placed, and the outer lips 22<SP>1</SP>, 23<SP>1</SP> are then bent over. In another form the resistances are held in the grooves by a backing member 38, Fig. 5 having aluminium mating strips 39, 40, 41 for each groove and a backing band 42 of less conducting metal such as stainless steel. Alternatively the resistances may be inserted into passages 51, 52, Fig. 7, and consolidated by swaging; the grooves between the resistances may be omitted leaving the retainer as a plain block. A resistance unit suitable for receiving a cooking pot or other articles to be heated is made by joining two curved retainers by spring-loaded tie-bolts 105, Fig 9.
Patent GB-975260-A (GB)
Title: Improvements in and relating to fluid pressure braking systems
Inventor: CHOUINGS LESLIE CYRIL
IPC: B60T11/24
Filed: 1962-03-08
Abstract: 975,260. Fluid-pressure brakes. AUTOMOTIVE PRODUCTS CO. Ltd. March 8, 1962, No. 9028/62. Heading F2F. A fluid pressure braking system for vehicles comprises a pedal or the like operated master cylinder 1, the pedal 8 also actuating a valve 6 of a vacuum suspended servo-unit 5 which is associated with a second master cylinder 2 providing two separate, brake-operating, fluid circuits 3, 4. The fluid for the first circuit 3 is pressurized from master cylinder 1 through line 13, aperture 25 of a piston 24 and a chamber 15 both of the second master cylinder 2, the fluid in turn reacting on a stepped piston 18 to actuate the second fluid circuit 4. The valve 6 comprises three chambers 32, 33, 35, a diaphragm 31 separating the first two mentioned chambers and possessing at its centre a spider 37 provided with a valve seat. A valve rod 40 carries two valve discs 39, 41, the former in its inoperative position being unseated and communicating vacuum, supplied through a one-way valve 7, from chamber 33 to chamber 32, and the latter isolating the atmospheric chamber 35 from chamber 32 by sealing valve seat 42. On depression of pedal 8 an associated member 12 moves the valve seat of spider 37 against valve disc 39, the other valve then being opened to connect piston 26 of servo-unit 5 to the atmosphere, aperture 25 of piston 24 being then closed and the fluid pressure in the two brake circuits being increased. In a modification a master cylinder, e.g. a tandem master cylinder, supplies two further master cylinders which operate separate hydraulic circuits. Specification 975,260 is referred to.
Patent GB-1171672-A (GB)
Title: Air conditioning
Inventor: TUCKER CARL LEONARD
IPC: F24F11/08
Filed: 1967-02-24
Abstract: 1,171,672. Air conditioning. SINGER CO. 24 Feb., 1967 [18 May, 1965], No. 9037/67. Heading F4V. An air-conditioning system for a building having a number of different zones has means for controlling the air supplied to each zone individually, means for starting and stopping the air-conditioning units in all the zones, and means for starting the units in a given sequence to reduce the starting load. An air-conditioning unit, such as is shown at 2, comprises a refrigertion system 11 supplied with electric power from lines 8, 10 controlled by a master switch 12. The unit may draw in fresh air or recirculate room air, a filter is provided for air passing through the evaporator 22 of the system 11. A manual control switch 34 is provided. The unit 11 may operate continuously or be thermostatically controlled. The switch 12 can be controlled by a timer 138 to switch off the current at intervals thereby de-energizing a timer motor 51 in each unit and allowing a cam 54, normally turned by the motor 51, to return to the position shown under the influence of a spring. The return of the cam allows a switch 46 to open so that current is cut off from the unit 11. The cam will rest on a bi-metallic strip heated by a heater 52 and although the power is restored to lines 8, 10 after only a momentary discontinuance the cam will be held in the position shown until the strip 50 cools down, a slipping clutch 56 permits the motor 51 to run freely while the cam is held by the strip. A manual plunger 44 will release the cam from the strip so that air conditioning is available immediately if desired. A push-button 72 provides control of the motor 51 if required. By adjustment of a screw 68 on each of the units the actual point of contact of the several switches 46 can be altered so that the switches close sequentially rather than all at one instant.
Patent GB-1297033-A (GB)
IPC: F02M59/46
Filed: 1970-02-25
Abstract: 1297033 Fuel injection pumps; I C engine fuel injectors CATERPILLAR TRACTOR CO 25 Feb 1970 9164/70 Headings F1A and F1B In a fuel injection pump 11 in combination with an inwardly opening injection nozzle 12 having an accumulator chamber 28, the pump delivery valve includes a valve member 42 and sealing surface 44 which define, when in the closed position, a limited passage 52 which allows reverse flow from the nozzle. The passage may be formed by a radially extending groove in the face surface of the delivery valve member, Fig.2 (not shown). The injector nozzle is of the type described in Specification 1243034.
Patent GB-1012819-A (GB)
Title: Process for separating melamine from hot, melamine-containing gas mixtures
IPC: C07D/
Filed: 1963-03-07
Abstract: Melamine is recovered from a hot gas mixture containing also ammonia and carbon dioxide (e.g. obtained in the catalytic reaction of ammonia with urea or a thermol decomposition product thereof at 300-450 DEG  C.) by contacting the hot gas with a substantially constant volume of water in a cooling zone, the water becoming saturated with ammonia and carbon dioxide, discharging melamine from the cooling zone, separately discharging the remaining gas, containing at least 90% of the ammonia originally present; and making up water lost by evaporation or entrainment.  The gas mixture may be cooled in two stages, first cocurrent with the coolant and then countercurrent. Ammonia separated from the gas mixture after recovery of melamine may be recycled to the melamine production zone.
Patent GB-180815-A (GB)
Title: Improved selvedge motion in looms for weaving
IPC: D03D5/00
Filed: 1921-03-29
Abstract: 180,815. Bury, E., and Wilkinson, J. March 29, 1921. Selvedge shedding-mechanism.- The two treadles e, f controlled by the ordinary tappets c, d and operating the main heald mechanism are connected by straps i, j to an additional shaft q which operates the selvedge mechanism by means of a tape l passing round a collar k mounted centrally or otherwise on the shaft. Two such tapes l, one at each end of the shaft, may be used. According to the Provisional Specification, straps or cords &c., each attached to the shaft g or to a collar, head, disc, or arm thereon, may be used.
Patent GB-1602161-A (GB)
Title: Benzylidene halides
IPC: C07C67/00
Filed: 1978-03-08
Abstract: The halides according to the invention are meta-phenoxybenzylidene bromide and chloride. They are prepared from meta-phenoxytoluene by reaction with two equivalents of N-chloro- or N-bromoacetamide, N-chloro- or N-bromosuccinimide, chlorine or bromine at 30 - 150 DEG C in an inert solvent; dihalogenation is carried out selectively. The said halides can be used to give meta-phenoxybenzaldehyde by hydrolysis in basic or acidic aqueous media.
Patent GB-1003954-A (GB)
Title: Release of filter cake in plate filter presses
IPC: B01D25/164
Filed: 1962-03-09
Abstract: 1,003,954. Filter-presses. R. VIAL, [trading as EBERHARD HOESCH & SOHNE]. March 9, 1962 [March 25, 1961], No. 9265/62. Heading B1D. A plate filter-press comprises a head-piece 10 and a counter-piece 11 with pressing means 12 connected with an end-piece 13. Plates 14 are suspended by eyes 15 on upper longitudinals 16 and each plate is surrounded by a filter cloth 41. When the press is opened, springs 24, acting through cross-bars 26, move the cloth outwardly perpendicular to its own plane and away from the plate, and rockable cylinder scraping devices 28 on a slide or carriage 32, and urged towards the cloth by compression springs 33, are used to scrape filter cake from the cloth. In a modification the cross-bars and leaf springs are located at the bottom of recesses 23. In a further modification (not shown) compressed air is used instead of the springs. The scraping devices 28 may each comprise a scraper 27 actuated from a piston and cylinder, or from a rack and pinion; alternatively cake removal may be effected by a nozzle fed by a compressed air bottle, Fig. 4 (not shown). The scraper may be of a stiff material, e.g. metal or synthetic material, or may be soft and yielding, e.g. rubber or synthetic material, and it, or its holder, may also be combined with a slot-shaped nozzle (not shown) for supplementing the scraping action with a supply of air. After the cake has been released a fluid, e.g. water, may be supplied through the slot-shaped nozzle to rinse the cloth. A coil of wire 40, or loose wire fabric, extending through the whole press in the supply passage may be used to separate the cakes on opposite sides of any one plate from one another.
Patent GB-270045-A (GB)
Title: Improvements in or relating to self-acting safety devices for perambulators, mailcarts and like hand-propelled vehicles
IPC: B62B5/04
Filed: 1926-02-08
Abstract: 270,045. Menhinick, A. S. Feb. 8, 1926. Locking vehicle wheels by positive detents.-In perambulators, mailcarts, &c. in which bolt members are moved between the wheel spokes on the release of a sub-handle which is pressed, together with the vehicle handle, in prshing the vehicle, the bolt and its operating means are supported on a frame secured to the spring and axle of the vehicle by clips. As shown in Fig. 1, the bolt member 1 is supported in a frame 3 attached to the vehicle spring 4 by a clip 11, Fig. 3b, and to theaxle 6 by a bar 5 of the frame and a, clip 12. The bolt member 1 is bent at right angles and bent again at any angle to form the part 1<a> which is curved in the form of a screw-thread and passes. through the bar 5, which may be twisted. A cord leading to the sub-handle is attached to an eye 8 on the part 1<a> of the bolt member which is withdrawn against the pressure of a spring 10. In another form, the bolt member may be threaded to rotate in a bush and carries a pulley over which passes a cord attached to the subhandle, a spring being attached to the other end' of the cord.
Patent GB-139921-A (GB)
Title: Machines and methods for making a number of articles of equal thickness and with plane parallel opposite faces
IPC: B24B37/08
Filed: 1919-04-12
Abstract: 139,921. Mercer, H. N. April 12, 1919. Block, rubber, and like apparatus.-A machine for the production of a number of articles of equal thickness and with plane parallel opposite faces comprises two non-rotary superposed laps, between the opposed operating-faces of which is located a driving-disk, in which is formed a circular series of holes for the pieces of work and which is adapted to be rotated to move the pieces with a smooth circular motion in contact with the laps. The upper lap rests freely on the work. pieces, being prevented from rotating by means of pins passing freely through holes in lugs formed on the laps ; after rotation of the driving-disk with the pieces has continued for some time, the pieces are interchanged, after removal of the upper lap, diametrically, and lapping is again proceeded with; further interchanges of the pieces are then made, along a system of parallel chords of the circle of holes, and lapping again proceeds. These operations of interchange along systems of parallel chords and lapping are then repeated as often as necessary. The pieces may be turned over and rotated through two right-angles about an axis perpendicular to the lapped faces at each interchange.
Patent GB-477598-A (GB)
Title: Anti-glare system applicable to headlights
IPC: F21S8/10
Filed: 1936-03-30
Abstract: 477,598. Anti dazzle screens for vehicles. ATTI, E. March 30, 1936, No. 9341. Void. Convention date, March 28, 1935. [Class 103 (ii)] [Also in Groups XI and XX] A vehicle is provided in front of the driver with an analyzing screen which transmits only plane polarized light. In one form, Fig. 4, the screen is composed of two piles of glass or other transparent plates and four plates K, L, M, N each with prisms P on one surface. The angles of the prisms are such that the parallel rays I are refracted to strike the pile of plates at the polarizing angle, and that the component transmitted by the pile is afterwards redirected forwardly. The plates K, N compensate for the deviations of the light rays due to the plates M, L. Another form of analyzer is shown in Fig. 5. Alternatively, the analyzer is made of doubly-refracting crystals.
Patent GB-308370-A (GB)
Title: Improvements in and relating to needles for gramophones and the like
IPC: G11B3/48
Filed: 1929-03-22
Abstract: 308,370. British Thomson-Houston Co., Ltd., (Assignees of Sherburne, A. J.). March 22, 1928, [Convention date]. Tools for reproducing.-A stylus 1 for gramophones has a record-engaging tip consisting of cellulose fibres such as bamboo impregnated with a hardened alkyd resin preferably one containing a polyhydric alcohol such as glycerine, and a polybasic acid such as phthalic, succinic, or malic acid, together with a drying oil acid such as the acids' derived from linseed oil, china wood oil or perilla oil. Alkyd resin consisting solely of glycerine and phthalic anhydride may be used for the impregnation.
Patent GB-586011-A (GB)
Title: Improvements in or relating to cranes, hoists and the like
IPC: B66C7/00
Filed: 1944-05-17
Abstract: 586,011. Overhead travelling cranes. KING, Ltd., G. W., and KING, D. M. May 17, 1944, No. 9476. [Class 78 (iv)] In a travelling crane of the kind having its frame or body portion connected to trolleys running on parallel overhead tracks, the frame is provided with arms having hook-shaped portions which engage freely over transverse members on the trolleys, relative vertical movement between the frame and the trolleys being limited by abutments on the trolleys co-operating with said hook-shaped portions to prevent disengagement of the latter from the transverse members. In the embodiment shown, the lifting tackle is suspended from a beam 10 secured to two channel-frame members 11, each connected by arms 20 to a pair of trolleys 12 running along a gantry 14. Each trolley comprises two plates 15 secured together by bolts 16 passing through spacing sleeves 17. The arms 20 have hook portions 21 fitting over a shallow U-shaped cross bar 24 secured between the plates 15 whereby the trolleys may move laterally relative to the crane to compensate for irregularities in the spacing of the gantries, such movement being limited by plates 26 secured to the portion 21 and having a length less than the distance between the plates 15. The sleeves 17 are so arranged above the arms 20 that the permissible upward movement of the arms is less than the height of the slots 22 in the arms. Specification 566,326 is referred to.
Patent GB-654431-A (GB)
Title: Improvements in or relating to davits
IPC: B63B23/04
Filed: 1948-04-05
Abstract: 654,431. Davits. SCHEPERS, J. A. April 5, 1948, No. 9518. Convention date, April 3, 1947. [Class 115] The davit arm 1 is connected to the fixed stand 5 by hinged links 2, 3, the latter carrying a sheave 14 round which the fall passes during the boat-lowering movement to an eye 8 and bollard 9. Outward movement is made by pulling on the lever 11 attached to the link 3, the pull of the fall on the sheave 14 assisting. In the inward movement the fall passes direct from the head-block 12 to the eye 8.
Patent GB-829519-A (GB)
Title: Devices for operating the draw carriages of drawing machines
IPC: B21C1/30
Filed: 1958-03-25
Abstract: 829,519. Drawing. SCHUMAG SCHUMACHER METALLWERKE G.m.b.H. March 25, 1958 [March 30, 1957], No. 9598/58. Class 83 (4). The reciprocating draw carriages of a drawing machine are operated by rotating cam elements, each having two concentric staggered cam races of different diameters engaged by two rollers rotatably mounted on a pin fastened to the underside of a carriage. The cam races are integral with three cam drums 3, 31, 3<SP>11</SP> fastened on a driven shaft 2 so that they successively cause the carriages 1, 1<SP>1</SP>, and 1<SP>11</SP> to advance the work through the machine. The races may also be symmetrically inclined such that the angle formed by them intersects the drum axis the rollers being adjustable individually or together on the pin or the races may be parallel having been machined in one operation and have cylindrical rollers. In another embodiment cam discs 9 replace the cam drums 3.
Patent GB-1285787-A (GB)
Title: Mould closing and opening device
Inventor: AOKI KATASHI
IPC: B29C45/67
Filed: 1970-02-27
Abstract: 1285787 Injection mould closing devices K AOKI 27 Feb 1970 [28 Feb 1969 14 March 1969] 9737/70 Heading B5A In an injection moulding machine having twostage mould closing means comprising a quickfeed ram 5 and a clamping ram 2, the rams 2, 5 have co-operating screw threads a, b which are movable into engagement with one another to connect the rams together, the threads having cam surfaces for overcoming misalignment of the rams, and the quick-feed ram 5 and a forcetransmitting member 11 being connected with play to permit alignment of the rams. As shown, a flange 15 on the ram 5 is movable to a limited extent in a gap defined by a lip 16 on the member 11 which carries a mould part 13. The screw threads a, b are provided on clamp members 3 movable by hydraulic cylinders 4 adapted to operate switches 18, 19 by means of rods 21 carried by the members 3. The switches 18, 19 control the two-stage mould opening and closing operations. In a modification (Figs. 7, 8, not shown) the switches 18, 19 are replaced by pressure-sensitive switches (23, 24) in the hydraulic circuits supplying the cylinders 4.
Patent GB-777883-A (GB)
Title: Shoes and shoe lasts, and methods of making the same
Inventor: BUTLIN HARRY EDWARD BARLOW
IPC: A43D3/02
Filed: 1955-04-04
Abstract: 777,883. Lasts; boots &c. MOBBS & LEWIS, Ltd. April 4, 1955, No. 9785/55. Classes 17 (1) and 17 (2). The median plane 33, 34, 35 of the cone of a last passing through the longitudinal central axis 29 is inclined upwardly and outwardly at an angle between approximately 2 to 5 degrees from a central plane 25 passing vertically through that axis, and the bottom surfaces of the heel and shank portions are inclined downwardly from the inner to the outer sides. A line 40 connecting the widest points of the heel portion makes an angle of between about 2 and 5 degrees with a horizontal plane 38 through the central axis. The longitudinal central axis extends between a point 24 at the toe adjacent the break between portions corresponding to the sole and upper, and lies substantially parallel to a plane tangential to the bottoms of the heel and forepart portions and midway between vertical lines 18, 19 tangential to the sides of the heel and forepart at their widest points when the shoe rests on a horizontal surface with its heel raised to the height specified for the last. Shoes shaped on such lasts prevent pronation.
Patent GB-1472709-A (GB)
Title: Coating apparatus
IPC: D06B3/18
Filed: 1975-03-10
Abstract: 1472709 Roll coating WIGGINS TEAPE Ltd 8 March 1976 [10 March 1975] 9789/75 Heading D1L Gravure coating roll 2 of the coating apparatus disclosed in Specification 1404616 and shown in Fig. 1 is provided with a gravure surface formed by bombarding a substrate roll with a thermally stable inorganic material. The materials include (a) tungsten carbide, optionally mixed with 9-10% Co, Ni and/or chromium carbide, (b) chromium carbide, optionally with 15-25% nickel chrome, (c) chromium oxide, optionally with 20% aluminium oxide or 40% Cr, and (d) aluminium oxide, optionally with titanium oxide. The modified apparatus may be used for applying solventless silicone compositions to release paper.