baber/WOPTO huggingface dataset:
Patent GB-693770-A (GB)
Title: A 3-substituted adduct of 5,7,9(11)-pregnatrien-20-one
IPC: C07J5/00
Filed: 1950-10-09
Abstract: The invention comprises 3 - substituted - 5 : 7 : 9(11) - pregnatrien - 20 - one adducts of the general formula <FORM:0693770/IV (b)/1> wherein B is a hydroxy group or an acyloxy group derived from an organic carboxylic acid and A is an adduct radical derived from maleic acid or anhydride or a maleic acid diester, and the manufacture thereof by ozonizing the 20 : 22 double bond of a 3 : 22-diacyloxybisnor-5 : 7 : 9(11) : 20(22)-cholatetraene adduct of the general formula <FORM:0693770/IV (b)/2> (wherein B and B1 represent acyloxy groups derived from organic carboxylic acids) with about 1.0-1.25 moles. of ozone per mole of bisnorcholatetraene in an organic solvent for the reaction at - 80 DEG  to +30 DEG  C. and decomposing the ozonide, and, if desired, subsequently hydrolysing the 3-acyloxy group, and the adduct bridge if in the anhydride or ester form, and further, if desired, re-esterifying the 3-hydroxy group or esterifying or anhydridizing the maleic acid adduct bridge. The ozonization is preferably effected with 1.0-1.1 molecular proportion of ozone at - 70 DEG  to - 30 DEG  C., e.g. in chloroform, methylene or ethylene chloride, carbon tetrachloride or acetic acid as solvent, and the decomposition of the ozonide under reductive conditions, e.g. by means of zinc and glacial acetic acid.  Examples describe the preparation of: (1) the maleic anhydride adduct of 3b -acetoxy-5 : 7 : 9(11)-pregnatrien-20-one from that of 3b  : 22 - diacetoxybisnor - 5 : 7 : 9(11) : 20(22) - cholatetraene; (2) the maleic acid adduct of 3b  - hydroxy - 5 : 7 : 9(11) - pregnatrien - 20 - one by hydrolysis of the product of (1) with aqueous caustic soda in dioxane; (3) the dimethyl, diethyl, dipropyl, di-isopropyl, dibutyl or dioctyl maleate adduct of 3b -hydroxy-5 : 7 : 9(11)-pregnatrien-20-one by treating the product of (2) with the appropriate diazoalkane in methylene chloride; (4) the dimethyl maleate adduct of 3b  - acetoxy -, - formoxy - or - benzoyloxy - 5 : 7 : 9(11) - pregnatrien - 20 - one by esterification of the first of the products of (3); (5) the maleic anhydride adduct of 3b -heptanoyloxy-5 : 7 : 9(11)-pregnatrien-20-one by refluxing the product of (2) with heptylic anhydride and pyridine; (6) the maleic anhydride adduct of 3b  - hydroxy - 5 : 7 : 9(11) - pregnatrien - 20 - one by refluxing the product of (2) with the liquid known under the Registered Trade Mark "Dowtherm," or by heating it alone to just above its melting-point.  Lists of additional products and starting materials are given.  3 : 22 - Diacyloxybisnor - 5 : 7 : 9(11) : 20(22) - cholatetraene adducts of the second general formula above are obtainable by the action of an acid anhydride or halide, in the presence of an alkaline salt of the corresponding acid, on the corresponding adducts of 3 - acyloxybisnor-5 : 7 : 9(11)-cholatrien-22-als, which may be prepared as described in Specification 680,733.  The preparation of a number of the bisnorcholatetraene compounds and intermediates therefor is described in detail.
Patent GB-891247-A (GB)
Title: Bracket
IPC: A47B96/06
Filed: 1958-07-31
Abstract: 891,247. Brackets; shelves. WODLI, E. July 31, 1958 [July 31, 1957], No. 24712/58. Classes 52(1) and 52(5) A shelf &c. supporting bracket comprises a bearer surface b formed by parallel arms 19, joined together at 21 and secured to a baseplate a, and stays 20 extending between the plate and the arms. The stays are preferably joined together at 22. Shelves 24, 24<SP>1</SP> have flanges which hook on the arms 19 and a partition 25 extends through the aperture 26 between the arms and stays of one or a series of brackets secured along an upright 1. In a modification struts are provided between the arms and the stays and, as shown in Fig. 5, a continuous shelf 27 is supported by a bolt 29, or screw, and a washer 28 complementary to the shape of the arms.
Patent GB-518379-A (GB)
Title: Improvements relating to air heating and circulating apparatus for motor vehicles
IPC: B60H1/00
Filed: 1938-08-23
Abstract: 518,379. Heating motor vehicles; centrifugal and screw fans. LUCAS, Ltd., J., and WATSON, E. A. Aug. 23, 1938, No. 24751. [Class 110 (i)] [Also in Group XIII] A centrifugal fan and a screw fan driven by a reversible motor are combined so that for one direction . of rotation the centrifugal fan is operative and for the other direction, the screw fan. A disc carrying shallow radial flow blades j is fast on a motor shaft a and carries a spider g the arms of which are slotted to embrace tongues i integral with sheets e. The sheets are pivoted upon rods c and the tongues are bent out of the planes of the sheets. When the spider is rotated anti-clockwise, the slotted ends run over the tongues and turn the sheets out of the plane of their pivots c so that they become the vanes of a screw fan. In this direction of rotation the vanes j are ineffective. On reversal, the vanes j are effective and by means of the tongues i the sheets e are turned back into the plane of their pivots c. The device may be associated on a motor car with a heat-exchanger supplied with hot water from the engine jacket, the heated air driven by the screw fan being delivered to the interior of the vehicle and that driven by the centrifugal fan being conducted to the lower edge of the windscreen. In another form of composite fan, the screw fan may have fixed vanes and lie adjacent an equal apertured disc. A lost-motion contrivance connects the discs so that, in one direction of rotation, the fan apertures are shut. Or, the fixed axial flow vanes may be of such form that they are ineffective in one direction of rotation.
Patent GB-188463-A (GB)
Title: A rotary rubber-dough moulding machine
Filed: 1921-09-20
Abstract: 188,463. Jones, F. C. Sept. 20, 1921. Cylinder machines; cleaning apparatus; feeding; lubricating.-In cylinder machines of the type involving a pair of contacting rolls c, d, one or both of which are provided with mould cavities fitted with ejecting- pistons m, Fig. 4, operated by an ejecting-cam k against the action of springs n, the pistons are each furnished with a gear &c. r adapted to engage a stationary rack or friction member s whereby the plungers are rotated during the ejecting movement. Fig. 2 shows a machine comprising a mould roll d contacting with a compressor roll c mounted in bearings f adjustable by screws g. The rolls c, d are mounted between side frames a and are surmounted by side plates j constituting a feed shoot through which rubber dough is fed by a roll e carried in bearings h adjustable by screws i. Lubricant contained in a receptacle u is applied to the moulds by brushes t carried by a roller s<1>, which brushes may be revolved similarly to the plungers. Surplus lubricant is removed from the roll d by squegees, brushes &c. The moulded cakes are delivered to a band p or may be delivered to a continuously-fed fabric backing and applied thereto by the plungers. The mould rolls may be fitted with knife blades or scrapers.
Patent GB-866275-A (GB)
Title: Superheaters and steam generators
IPC: F22G5/16
Filed: 1958-08-01
Abstract: 866,275. Superheaters. SULZER FRERES S. A. Aug. 1, 1958 [Aug. 3, 1957], No. 24916/58. Class 123(3) The temperature of steam emerging from boiler superheater tubes 1, immediately upstream of the steam outlet a, is kept constant by heating parts of the tubes in the combustion gas flue 2 to form heating surfaces H and the remaining portions, extending through the boiler brickwork 3, in a heat exchanger 4 where they provide cooling surfaces K. The heat exchanger 4 is divided into several parallel chambers 4a all the inlets of which are controlled by a regulating valve 5 each chamber being provided with an adjustable damper 6 at the outlet. As shown the heat exchanger is constructed for a gaseous cooling medium, e.g. air, which after leaving the exchanger may be used as preheated air for combustion. Alternatively the heat exchanger may be constructed for a liquid medium in which case the boiler feed water could serve as the cooling liquid. The flow of cooling medium may be regulated by a control unit which is fed with signals from two thermocouples located respectively at the up and down stream ends of the heat exchanger.
Patent GB-249453-A (GB)
Abstract: 249,453. Suzuki, T. Jan. 6, 1926. Closed solid-fuel stoves; grates; supports for articles to be heated.-A closed solid fuel stove in which combustion occurs at the base of the fuel column, comprises a vertical body a having at the front a projecting part b in which is a door d, and at the rear a projecting smoke chamber t; within the part b is a grate m suspended in lugs p and movable inwardly for the supply of ignition material, and, at the entrance to the smoke chamber is a grate y with upwardly inclined openings. An adjustable secondary air inlet z is provided at the side of the smoke-chamber, and the top of this chamber is provided with an opening w for utensils.
Patent GB-401467-A (GB)
Title: Improvements in and relating to grinders for internal cylindrical surfaces
IPC: B24B33/08
Filed: 1932-09-08
Abstract: 401,467. Cylinder grinders. HUTTO ENGINEERING CO., Inc., 515, Lycaste Avenue, Detroit, Michigan, U.S.A. Sept. 8, 1932, No. 25043. Convention date, Nov. 25, 1931. [Class 60.] Relates to internal cylinder grinders having radially - adjustable stones 24 controlled by opposed cones 17, 18, as described, for example, in Specification 311,138, [Class 60, Grinding or abrading &c.], and consists mainly in providing automatic means for expanding and contracting the stones upon moving the tool into and out of the cylinder bore. In the tool shown, the lower cone 18 is connected by a screwed rod 38 to a nut 43 and the upper cone 17 by an oppositely - screwed sleeve 46 to a nut 47. The nuts are feathered together and shouldered to support discs 56, 54 serving as abutments for a spring 57 that constantly tends to contract the cones and spread the stones. The grinding diameter is set by rotating a collar 60 which is geared through an intermediate pinion 66 to elongated teeth on the nut 43. The separation of the discs 54, 56 is limited by links 77 which ensure ultimate expansion of the stones to the set .diameter, but during the preliminary cuts, the stones are automatically fed outwards by the expansion of the spring 57. When the tool is withdrawn into the casing 70, levers 86 engage a fixed coned wall 75 and operate levers 84 to raise the disc 54 and permit the stones to contract by the action of the usual garter springs 25, 26, the stones being automatically expanded when the tool is again pushed into the work.
Patent GB-1179908-A (GB)
Title: Improvements in or relating to apparatus for use in the production of corrugated board.
Inventor: STEWART WARREN ADAMS
IPC: D21F5/00
Filed: 1967-05-31
Abstract: 1,179,908. Corrugated board manufacture. KOPPERS CO. Inc. 31 May, 1967, No. 25045/67. Addition to 1,026,808. Heading B5N. A device for applying pressure to urge one face of a moving corrugated board 211 into close contact with a heating surface during passage of the board thereover comprises a hood 210 supported above the heating surface, the hood and the moving board in use defining a plenum, a blower fan 213, for supplying gas under pressure to the plenum, and means for vertically adjusting the hood relative to one face of the board to control the rate of escape of the gas from between the hood and the moving board, the hood having flanges 222 substantially parallel with the opposite face of the moving board and spaced therefrom which provide an escape route for the gas under pressure and require no adjustment to compensate for boards of different widths. As shown, the vertical adjustment of the hood is provided by brackets 217 secured to the hood and threaded on screws 216 rotatably mounted on a steam chest 212, the screws being rotatable via a common chain 219. The hood includes dampers A, D in ducts A 1 , D 1  communicating with the atmosphere, and dampers B, C in ducts B 1 , C 1  communicating with the plenum. When the board 211 is moving the dampers A, C are open, the dampers B, D closed and the air flow is as shown. When movement of the board is interrupted the positions of the dampers are automatically reversed so that air is withdrawn from the plenum, thus drawing the board 211 upwardly into contact with the flanges 222 and away from the steam chest 212 to prevent scorching. In one method of making double-faced corrugated board, the tips of the flutes of a single-faced board are roller coated with glue, a back liner is contacted with the glued flutes between rollers, and the doublefaced board so formed dried and set between a series of steam chests and a belt running below a series of the above described pressure devices. The end devices of the series cool the belt before it is slit longitudinally and cut transversely.
Patent GB-481571-A (GB)
Title: Improvements in or relating to aluminium base alloys
IPC: C22C21/02
Filed: 1936-09-14
Abstract: An alloy consists of 7-20 per cent of silicon, 0,3-3 per cent of tin, if desired ,01-2 per cent of magnesium or 0,5-3 per cent of zinc or both, and the balance aluminium.  The alloy may also contain as impurities, up to 1 per cent of copper, up to 1 per cent of iron, and up to 0,1 per cent of manganese, nickel, cobalt, or titanium. According to the Specification as open to inspection under Sect. 91, the alloy may also contain as an impurity up to 0,1 per cent of chromium.  This subject-matter does not appear in the Specification as accepted.
Patent GB-684197-A (GB)
Title: Tanker road vehicles
IPC: B60P3/22
Filed: 1950-10-14
Abstract: 684,197. Vehicle body suspensions; resilient supports. THOMPSON BROS. (BILSTON), Ltd., BRINDLEY, H. C., MOTOR SERVICES (LONDON), Ltd., HORLE, J. F. Oct. 3, 1951 [Oct. 14, 1950], No. 25097/50. Classes 108 (ii) and 108 (iii). A mounting for the tank of a tanker road vehicle comprises, at or toward each end of the tank and between the latter and a transverse member of the chassis, a pivotal mounting connection having a fore-and-aft axis in the longitudinal centre plane of the vehicle, each such pivotal mounting connection incorporating a rubber or like resilient bush which operates in torsion to resist relative angular movements of the tank and chassis about the pivotal axis. In the arrangement shown, an encircling segmental ring or band 13, Fig. 2, is frictionally clamped to the forward end of a tank 11 and carries a bracket 15 and a pair of foot brackets 26, 26 depending from an arcuate plate member 15x welded to the ring. The bracket 15 is connected through a pivotal connection 17 to a transverse chassis member 16 connected between chassis side members 10, 10 and each bracket 26 bears upon the adjacent end of the member 16 through a rubber pad 28 recessed into the foot of the bracket. The pivotal connection 17 comprises a radially precompressed rubber bush 19, Fig. 8, disposed between inner and outer metal sleeves 20 and 21, the outer sleeve 21 being secured in a bearing tube 22 incorporated in the bracket 15. The inner sleeve 20 which is a push-fit on a metal bearing tube 23 surrounding a pivot-pin 18, is clamped by nuts 24, 24 to the transverse member 16. A similar arrangement of brackets and pivotal connection are used to support the rearward end of the tank. The rubber pads 28 may be arranged to operate in shear or partly in shear and partly in compression. The tank, intermediate its ends, is supported on the chassis members 10, 10 by means of brackets depending from a plate welded to a band clamped to the tank and bearing on the members 10, 10 through rubber " sandwich " mountings. The rings 13 at the forward and rearward ends of the tank may be secured in position to each other and the tank or to the tank only by welding, which may be additional or alternative to clamping bolts 14. According to the Provisional Specification a rubber " sandwich " may be disposed between each end of the transverse chassis members and the respective side member.
Patent GB-890251-A (GB)
Title: Improvements in or relating to methods of making blind rivets
Inventor: CARUSI ALEXANDER
IPC: B21K1/58
Filed: 1959-07-23
Abstract: 890,251. Making hollow rivets. OLYMPIC SCREW & RIVET CORPORATION. July 23, 1959, No. 25277/59. Classes 83 (2) and 83 (4). A tubular rivet 20, Fig. 6, comprises a sleeve 26 with a head 30 at one end and longitudinal fissures 34 extending from the other end toward the head in the external surface and formed by closing grooves. The rivet is set as described and claimed in Specification 890,252 (see Group XXV) by a pin. The rivet is made from rod 51, Fig. 1, e.g. aluminium, having grooves 54 formed therein by rollers 52 before being cut into blanks. A blank is forced by a plunger 65, Fig. 3, into a cavity 62 formed between dies 56, 58, the central portion being compacted by punches 64, 66. Thus the grooves are closed to form fissures by the dies. The resulting headed blank then has axial bore 92 drilled therethrough and the base end 94 remote from the head is tapered. It is said that the compacting causes the wall of the rivet to be of increasing density from its outer to its inner surfaces, so that the stresses therein are relieved as the sleeve is split and aid the bending back of said parts.
Patent GB-911146-A (GB)
Title: Improvements in or relating to circular knitting machines
Inventor: HOPKINSON JOHN CURTIS
IPC: D04B9/26
Filed: 1957-08-10
Abstract: 911,146. Knitting-machines. HOSIERY & ALLIED TRADES RESEARCH ASSOCIATION. Nov. 10, 1958 [Aug.10, 1957; Feb. 1, 1958], Nos. 25314/57 and 3375/58. Class 74 (2). Positive yarn-feeding mechanism for a single or two-feeder circular machine comprises two cones 10, 11, one of which is gear-driven from the machine and the other being held against it by a solenoid 23, so that a yarn passing between them is positively fed without slip to the needles. The speed of feeding the yarn is predetermined in relation to the speed of consumption such that there is a satisfactory working tension imposed. When it is desired to knit the yarn without positively feeding it, such for example during the production of the welt of a ribbed sock, the cone 11 is moved away from the cone 10 by a spring 21, the solenoid being de-energized. Striping mechanism may be provided at each feeder and mechanism associated with the striping mechanism may be provided to introduce and withdraw yarns from between the cones in accordance with the dictates of the patterning mechanism selecting the appropriate guide of the striping mechanism at the feeder. In a twofeeder machine, one feeder may be operated in conjunction with severing and trapping mechanism independently of the other feeder so that one or both feeders may feed yarn positively or neither may have their yarns positively delivered but merely taken and drawn by the needles. Specification 861,879 is referred to.
Patent GB-241220-A (GB)
Title: Improvements in braces for personal wear
IPC: A41F3/00
Filed: 1925-10-10
Abstract: 241,220. Stempel, N. de. Oct. 10, 1924, [Convention date]. Braces.-Indiarubber braces are made from two straps connected together by a button on one piece engaging a buttonhole on the other. The straps are perforated to leave longitudinal, lateral, and oblique strips f, d, e, respectively, capable of resisting the various strains but also allowing of ventilation. Perforations a, b in the tab ends allow of adjustment.
Patent GB-633123-A (GB)
Title: Improvements connected with needle threading devices
IPC: D05B87/00
Filed: 1947-09-17
Abstract: 633,123. Sewing. SKILLINGTON, W. J., and WARNER, F. A. Sept. 17, 1947, No. 25344. [Class 112] [Also in Group XVII] Needle-threaders.-A body 1 has a longitudinal slot 3, in which slides a hooked thread-engaging member 5, and one or more transverse recesses 4 to receive needles with their eyes in line with the slot 3 so that the member 5 can pass through them, the member 5 being connected to a knob or operating member 8 which slides in a slotted part 10 of the body 1 so that its movement is limited. In the form shown the body is formed of two halves joined on a vertical plane through the slot and recesses, and the member 5 has adjacent to the handle 8 a pin 7 to prevent rotation. The slot 3 contains a stop member 16, to locate the needles, which can be taken out to allow easier removal of fluff, &c. from the device, and the member 5, with its handle and pin, is preferably also removable. The body 1 is notched at 11, 12 for insertion of the thread into the notch of the member 5 and its removal therefrom respectively. The lower portions of the recesses 4 are polygonal in section for proper location of the needles. The base 2 of the device may carry one or more posts for thread reels and also a cutting blade 18. In a modification, Fig. 7 (not shown), a toothed wheel is carried by the body 1 on a spindle beneath the notch 12, the teeth being slotted to fit closely on either side of the member 5 so as to raise the thread therefrom as it is withdrawn from the needles.
Patent GB-391670-A (GB)
Title: An improved closure for collapsible tubes or the like containers
IPC: B65D47/20
Filed: 1932-09-13
Abstract: 391,670. Closures for collapsable tubes &c. MANZARDO, R. S., 9, Avenue Edouard Rod, Lausanne, Switzerland. Sept. 13, 1932, No. 25429. Convention date, Oct. 9, 1931. [Class 125 (iii).] In an automatic closure for collapsable tubes &c., of the kind in which a spring-loaded valve member 1 is actuated in one direction by pressure on the container to permit passage of the contents through an outlet 8 and is actuated in the reverse direction by the spring 9 to close the outlet when pressure is released, the valve piston 1 is slidable laterally and has a passage 7 through it capable of being brought into register with the outlet 8. The valve which may be guided for non-rotation by guides 3, or for rotation by helical guides, is slanted at 6 to form a wedge-like chamber 11. The whole of the closure device may be formed separate from the container and screwed thereon.
Patent GB-1001502-A (GB)
Title: Surface treated lithographic plates and production thereof
Inventor: LEONARD ROBERT F
IPC: B41N3/03
Filed: 1962-07-03
Abstract: A lithographic plate comprising a plate of Zn, Al or Cu having a surface consisting of the phosphomolybdate of the metal is formed by treating the plate with a aqueous solution containing phospho - molybdate ions.  The aqueous solution has a pH of 4-6 and contains either molybdic acid (85%) and tribasic sodium phosphate; or sodium phosphomolybdate and caustic soda; or ammonium molybdate phosphoric acid and sulphuric acid.  The preferred solution contains 12-16 mols of molybdic oxide to 1 mol of phosphate and preferably 9.1-37.7 gms. of 85% molybdic acid and 1.8-7.5 gms. of tribasic sodium phosphate in 1 litre of water, the solution temperature being 155-180  DEG F.  The metal plate is cleaned and etched in an aqueous solution containing tribasic sodium phosphate, NaOH and a wetting agent such as an alkyl phenyl ether of polyethylene glycol, rinsed in water and desmutted in a solution of HNO3 and HF.  After treating with the phosphomolybdate solution the plate is sealed by immersion in an aqueous 1% solution of one of the following at 200-212  DEG F.: an acetate of sodium, potassium, magnesium, barium or calcium, or a carbonate of ammonium, lithium, barium, calcium, magnesium or zinc, or dibasic sodium phosphate, or NH4OH or urea. Alternatively the plate may first be cleaned in an aqueous solution containing ethylene glycol monoethyl ether, Na2Co3 and Na3Po4 and then mechanically grained with pumice powder.  The treated phosphomolybdate surface is finally treated with a superpolyamide nylon diazo sensitizer or a bichromated gum arabic solution or a bichromated casein, exposed to light and the required pattern is then produced by developing.