baber/WOPTO huggingface dataset:
Patent GB-1029438-A (GB)
Title: Process for preparing 6-keto-í¸-19-nor-3-acyloxy steroids
IPC: A61K31/566
Filed: 1964-02-19
Abstract: 6 - Keto - D 5(10) - 3 - acyloxy - 19 - nor - steroids of the androstane, pregnane or sapogenin series are prepared by reacting the corresponding 3 - acyloxy - D 5 - 19 - hydroxy - steroids with a chromic acid oxidizing agent for a prolonged period of time.  The starting materials may additionally contain a 17-keto group or a 17b -hydroxy or -acyloxy group with or without an alkyl, alkenyl or alkynyl group at position 17a ; a 17b -acetyl group with or without a 17a -hydroxy or -acyloxy group; a dihydroxy acetone side chain preferably protected as the 17a ,20; 20,21-bismethylenedioxy group; a sapogenin side chain; an 11-keto group; a 16-keto, -hydroxy, -acyloxy or -methyl group; or a 16a , 17a -acetonide group.  In the products a dihydroxyacetone side-chain may be released from a bis-methylenedioxy group, the 3-acyloxy group may be hydrolysed and oxidized to a 3-keto group, a sapogenin side-chain may be degraded (after reduction of the 6-keto group to a 6-hydroxy group) to produce a 19-nor-D 5(10) 16 - pregnadien - 3b ,6 - diol - 20 - one in which a 17a -hydroxy group may be introduced via the 17,20-epoxide and the product selectively oxidized to give a D 5(10)-19-nor-pregnene-3b ,17a -diol-6,20-dione; a 21-acetoxy group may be introduced by the usual methods; and an 11b -hydroxy group may be introduced microbiologically. Examples are given.  The 3 - monoacetate of 17a  - methyl - D 5 - androstene - 3b ,17b ,19 - triol and the corresponding 17a -vinyl and -ethynyl compounds are prepared by reacting D 5-androstene-3b ,19-diol-17-one with methyl, vinyl or ethynyl magnesium bromide to give 17a -(methyl, vinyl or ethynyl)-D 5 - androstene - 3b ,17,19 - triol, acylating these to the 3,19-diacetates, and partially hydrolysing these.
Patent GB-216955-A (GB)
Title: Improvements in or relating to machines for uprooting or harvesting flax and other plants
IPC: A01D45/06
Filed: 1923-03-10
Abstract: 216,955. Boby, Ltd., R., and Fabry, A. March 10, 1923. Flax-pulling machines.-A machine comprises mechanically resilient jaws carried between endless chains and operated by a cam to seize and release the stalks. A frame A, Fig. 1, supported by wheels a<1>, carries in a frame c<1> a separate pulling attachment. This latter consists of parallel shafts E, C carrying at their ends sprockets F, D over which pass chains G. Connected across the chains are bars H, Fig. 4, carrying bearings h<1> for shafts j' and fixed jaw members K. The shafts j<1> are moved axially by a fixed cam (not shown) against the pressure of a spring j<2>, and actuate through collars p<1> attached to the shafts and springs p<2> movable jaw members which cooperate resiliently with the jaws K. In operation, guide fingers R divide and guide the stalks and tines T loosen the roots, the chains G being driven through ordinary gearing from the road wheels. The fixed cam successively actuates the shafts j<1> to effect the gripping of the stalks between the faces of members P, K, and afterwards to release them. The stalks fall on to a conveyer S and are carried to a rear receptacle a<3>. The faces of the members P, K may be rubber covered.
Patent GB-897653-A (GB)
Title: Improved driving unit for powered vehicles
IPC: F16H3/091
Filed: 1961-02-27
Abstract: 897,653. Engine and gear-box construction. FORD MOTOR CO. Ltd. Feb. 27, 1961 [Feb. 26, 1960], No. 7044/61. Class 7(2). [Also in Group XXXI] The engine, change speed transmission gear and differential gear of a motor vehicle are arranged as a single structural unit, the change speed gear and the differential gear, the driving pinion of which is coaxial therewith, being arranged laterally beside or below the engine in the region between the front and rear main crank-shaft bearings, the engine crank-shaft being parallel to the transmission mainshaft. As shown in Figs. 1 and 2, a multi cylinder in line engine 10 comprising a crank-shaft 11, in the longitudinal direction of the vehicle, is inclined with respect to the vertical plane and is located above and beside the change speed transmission unit which drives the rear axles 26 through the differential gear comprising a crown wheel 22, planet gears and bevels 23. A gear 13 fast with the crank-shaft meshes with a gear 15 which is fast with the camshaft 14 and which drives a gear 16 from which the transmission is driven through a friction clutch 19. In a modification, Fig. 4, the differential gear is located between the friction clutch 19 and the transmission gear, the transmission mainshaft and differential gear input pinion 21 being hollow to accommodate the transmission driving shaft. The transmission input shaft and cam-shaft may alternatively be driven through the intermediary of a flexible drive, e.g. a chain or belt. The flywheel of the engine may be on the side remote from the cam-shaft and transmission drive. The change speed transmission casing 27, crank-case 12 and differential gear casing 24 may be formed as a one piece casting.
Patent GB-399717-A (GB)
Title: Process for cleansing articles of metal and the like by means of volatile solvents and apparatus therefor
IPC: C23G5/04
Filed: 1933-03-08
Abstract: <PICT:0399717/III/1> In the cleansing and degreasing of articles of metal, glass, horn, celluloid and the like by exposure to heavy solvent vapours, e.g. of tri- or per-chlorethylene or carbon tetrachloride, and wherein escape of vapour from the washing vessel is prevented by one or more laterally arranged cooling spaces communicating with the upper part of the vessel, the level of the vapour in the vessel is lowered after the degreasing operation, so that the articles may dry, by placing the lower part of the vapour space in communication with the lower part of the cooling space.  For example, a cage 7 containing the articles is lowered on to a grating 8 above liquid solvent in an open washing vessel 1; a casing 2 is suspended from rollers 3 so as to dip into the liquid and form an annular space 5 within which are arranged cold-water pipes 6.  During the cleaning operation the liquid is boiled and surplus vapour falls over the upper rim of the casing 2 into the cooling space 5, so limiting the vapour level in the washer 1; when cleansing is finished the casing 2 is lifted above the liquid so that the lower end of the cooling space 5 communicates with the space below the grating 8, the vapour level is lowered to that of the lowest cooling pipe 6, and the articles dry in the air from above.  In other apparatus, communication between the lower ends of the vapour and cooling spaces is controlled by valves; suction pockets are arranged near the top of the washing vessel to withdraw air that has become charged with solvent vapour by diffusion; hinged or sliding covers above the washing vessel may be so arranged that when closed they close the openings to the suction devices; the articles are contained in a closed rotatable cage or are carried through the washing vessel, and may be rotated therein, on conveyers, and gutters are arranged beneath the cooling pipes.
Patent GB-494879-A (GB)
Title: Improvements in and relating to grinding mills for paints and the like
IPC: B02C4/34
Filed: 1938-03-07
Abstract: 494,879. Roller - - and - breast mills. AEBI, J. March 7, 1938, No. 7120. Convention date, Aug. 13, 1937. [Class 59] A pair of grinding-bars is moved toward or from a grinding roller through the intermediary of a hinged or pivoted connection, preferably a ball-and-socket joint, interposed between a common adjusting-member and the grinding-bars. As shown, two breast bars 4, 5, of which the area of the bar 4 in contact with the roller 1 is wider than that of the bar 5, are mounted by ball-heads 16 in a channel 14 which is secured to an adjusting- screw 9 by a ball-and-socket joint 10, 12, 13. The bars. are pressed together laterally by a screw 3. Intermediate pressure devices shown in Fig. 3, may be arranged to apply pressure only to the bars by means of projections on the bars engaged by a conical plate 11<1> held on the ball joint 101 b springs 13<1>
Patent GB-723664-A (GB)
Title: Improvements in or relating to the continuous production of profiled shapes or articles
IPC: B29C59/02
Filed: 1952-03-19
Abstract: Hard vulcanized rubber shapes in long lengths with any desired profile are produced by heating an unvulcanized rubber mixture on or between appropriately shaped short length bands, particularly metal bands for a time sufficient to produce partial vulcanization and then, after removal of the partially vulcanized and profiled strips from the bands, submitting them to further vucanization without the use of external moulds to complete vulcanization so as to produce strips of hard vulcanized rubber.  In an example, a mixture of 50 parts of rubber and 16 parts of sulphur is mixed with kaolin, bitumen, paraffin oil and dibenzothiazyl disuphide and the mix calendered to form strips or sheets 0.5 to 1 mm. thick.  They are then heated at 150 DEG C. for 1/2 to 2 minutes between corrugated metal bands.  Subsequently the strips are wound on rollers of 50 cms. diameter and vulcanized at 3 atmospheres super pressure for 3 1/4 hours.
Patent GB-216605-A (GB)
Title: Improvements in or relating to means for the manufacture, centrifugally, of pipes, columns and other hollow articles
IPC: B28B21/30
Filed: 1923-03-13
Abstract: 216,605. Moir, D., and Buchanan, H. March 13, 1923. Centrifugal machines. - In a machine for moulding hollow articles centrifugally by distributing evenly in a rotating mould plastic material from a longitudinally movable trough, as described in Specification 12928/15, the supports within the mould carrier are built up radially to suit different sizes of moulds, and are collectively united to form a member removable endwise from the carrier. The moved casing 70 is provided internally with tapered flanges 85, 82 and intermediate rings 77 which can be built up to hold the mould 75<a> by rings 78, 80 secured together on a metal sleeve 79 slidable longitudinally in the casing. The mould 75<a> is locked in position by rotating a ring 82a and a former 83a until lugs on each pass through gaps in the flanges 85 and the ring 82<a> respectively. The interior surface of the mould article is polished by means of removable bosses 90 screwed on the filling trough and adjustable in size according to the dimensions of mould used. The bosses are provided with spring blades 91.
Patent GB-216960-A (GB)
Title: Hydraulic turbine
IPC: F03B3/18
Filed: 1923-03-13
Abstract: 216,960. Moody, L. F. March 13, 1923. Working-fluid' supply.-A hydraulic turbine has an intake 32<1> directing the flow radially inwards and with a whirl located below an outlet 81 receiving the discharge radially and with a whirl, a conduit of a double flaring conical form leading from the intake 32<1> to the discharge outlet 81 and a turbine runner 45<1> in this conduit spaced from the entrance thereto so as to leave a free transition space W<11> between the runner 45<1> and the entrance. A concrete base 33<1> supports a stay vane ring 34<1> and adjustable guide vanes 55<1> and has a passage 133 beneath leading to the extreme end of the intake passage 32<1>. The upper portion of the conduit which serves as a draft tube D" is bounded by an outer ring casting 38' carving a discharge stay vane ring 74 and an inner casting 75 supported by the discharge stay vane ring 74. The inner casting 75 supports the turbine shaft and a concrete ring 79 which is connected by stays or piers 80 to the foundation above, thereby leaving an outlet passage above the concrete ring 79. The concrete ring 79 and base 33<1> are of oval form. The runner and other parts may be removed vertically. Governor controlled fluid pressure devices may be used to operate the adjustable guide vanes bv acting on a ring 85 connecting arms on the guide vanes 55<1>. A chamber 87 gives access to these parts for inspection. The runner may be of the unshrouded axial-flow type.
Patent GB-643669-A (GB)
Title: Improvements in or relating to superheterodyne radio receiving sets
IPC: H03G3/22
Filed: 1947-03-17
Abstract: 643,669. Automatic volume control. STANDARD TELEPHONES & CABLES, Ltd. March 17, 1947, No. 7300. Convention date, Jan. 30, 1946. [Class 40 (v)] A C.W. receiver incorporating automatic volume control is provided with a variable biassing arrangement in the A.V.C. line to neutralize the change of A.V.C. voltage when the beat oscillation is brought into operation. As shown, a detector valve has the signal fed to its first anode D1 through a tuned transformer and produces the audio output at BF. The signal voltage is also fed to the second anode D2 through condenser C1 to produce an A.V.C. voltage across the load resistors R2, R3. When the beat oscillator valve V2 is switched by H.T. switch K1 on for C.W. reception, the A.V.C. voltage tends to rise due to the rectification of the beat frequency in the A.V.C. detector. This is compensated by passing the oscillator cathode current through resistor R3 to produce an opposing voltage when the oscillator is in operation, which varies in dependence upon the amplitude of the oscillation. In an alternative arrangement (Fig. 4, not shown), a common cathode double diode triode is used in a circuit similar to that of Fig. 2, and in a further alternative arrangement (Fig. 3, not shown) the opposing bias is obtained from the slider of a potentiometer supplying H.T. to the oscillator. Specification 518,437 is referred to.
Patent GB-297127-A (GB)
Title: Improved process for producing coherent caoutchouc or the like products
IPC: C08J5/02
Filed: 1927-03-16
Abstract: 297,127. Anode Rubber Co., Ltd., (Klein, P., Gßbor, F., and Szegvßri, A.)- March 16, 1927. Indiarubber, jointing.-Indiarubber &c. articles are produced by bringing into contact with one another in a moist or wet state or in an incompletely dried or coagulated condition, and with or without pressure, two or more pieces of material obtained directly as deposits by electrophoresis, dipping, spreading, spraying or impregnating, from natural or artificial aqueous dispersions of rubber &c., the pieces thus brought together being found to be integrally united after further drying or coagulation. The process may be used, for example, for making hollow rubber articles, or for attaching an impregnated-fabric valve patch to an inner tube.
Patent GB-309285-A (GB)
Title: Improvements in or connected with abdominal supports and other like surgical appliances
IPC: A61F5/26
Filed: 1928-03-09
Abstract: 309,285. Curtis, L. V. March 9, 1928. Trusses.-An abdominal support or like surgical appliance having resilient straps B, B<1> each pivotally connected to triangular plates A, A<1> by a single screw D threaded into a metal reinforcement piece A<4>, is characterized by the pivotal movement of the straps B, B<1> on the screws D being restricted by a member E, of which downturned portions E<2> engage the sides of the pieces A<4> and upturned portions E<1> engage the edges of the straps. The pieces A<4> have a number of threaded holes A<5>, any one of which may receive the screw D. The extent of the pivoting of the straps B, B<1> is determined by the spacing of the flanges E<1>. The screws D have plain shoulders which pass through the straps and abut against the members E, the down turned portion E<2> of which prevent the leather covering of the plates A, A<1> from rising adjacent to the pieces A<4>. The straps are sheathed in leather or other material B<2>, B<3> and back pads C, C<1> are provided. Guards B4 slidable on the straps B, B<1>, cover the heads of the screws D. The invention may be applied to the support described in Specification 273,628.
Patent GB-580957-A (GB)
Title: Seals for shafts
IPC: F16J15/34
Filed: 1945-03-23
Abstract: 580,957. Oil seals. WESTON & CO., Ltd., C., and BUSH, R. E. March 23, 1945, No. 7344. [Class 122 (v)] To prevent oil leakage along a crankshaft 12 a split artificial rubber packing ring 21, situated between the bearings 16 and a flange 13 on the shaft, has a flange 27 contacting the shaft and an annular ridge 31 having a slight clearance from the flange 13. The ring housing comprises an attachable portion 23 secured to the motor casing to hold the ring under radial compression, and a portion 22 integral with the motor casing. The ring may have an annular groove 26 and comprise a frusto-conical portion 28 and a cylindrical portion.29.
Patent GB-1136933-A (GB)
Title: Process for the production of tetra---substituted anthraquinone derivatives
Inventor: HOHMANN WALTER
IPC: C09B1/26
Filed: 1966-02-21
Abstract: 1,136,933. Anthraquinone dyes. FARBENFABRIKEN BAYER A.G. 21 Feb., 1966 [19 Feb., 1965], No. 7445/66. Heading C4P. Compounds of the formula where the X's stand for hydroxyl and/or amino groups, the Y's stand for H Cl or Br, one of R and R 1  is Cl and the other stands for an unsubstituted or substituted amino, acid amide or a mercaptan radical, are prepared by reacting the corresponding compounds wherein R and R 1  are both Cl with an approximately equimolar amount of ammonia, a primary or secondary amine, an acid amide or a mercaptan. The product may be reacted with a second reactant from the group ammonia, a primary or secondary amine, acid amide or mercaptan, and may be sulphonated.
Patent GB-576378-A (GB)
Title: Improvements relating to rotary pumps
IPC: F04B9/02
Filed: 1944-04-21
Abstract: 576,378. Controlling clutches. VANNI, P. G. April 21, 1944, No. 7473. Convention date, April 5, 1943. [Class 80 (ii)] [Also in Groups XIX and XXVI] A metering pump 9, with inlet and delivery pressures approximately equal, is driven through a slipping clutch 6, 7, the pressure upon which is regulated by adjustable springs 11, 14, and/or pressure-controlled diaphragms. An electric motor 1 drives an axiallyslidable shaft 4 and the spring and diaphragm pressures are exerted on a plate 5, of the clutch, through pivoted arms 10, 13 and a rod 1'6. A recording meter 23 and a tachometer 24 are driven through bevel gearing. 'The outlet pipe from 19 is controlled by a valve. A single lever may replace the levers 10, 13. Fig. 3 shows a modification in which a driven pump 28 supplies a smaller pump 37, surplus fluid passing a byepass valve 57 and returning to a reservoir 56. The pressure on the clutch plate 35 is controlled by (a) delivery pressure in a chamber 46 acting on a diaphragm piston 48, and (b) the inlet pressure for the pump 37, acting on a diaphragm piston 50, as shown. The Specification as open to inspection under Sect. 91 comprises also a peripheral 'ring of friction material which is pressed on by a pivoted member under action of a centrifugallyactuated weight, which increases the pressure of the member on the ring when the driving shaft is speeded up. This driving torque is opposed by a spring. This subject-matter does not appear in the Specification as accepted.
Patent GB-543384-A (GB)
Title: Mercury switches
IPC: H01H29/26
Filed: 1941-06-13
Abstract: 543,384. Mercury switches; electromagnetic switches. STANDARD TELEPHONES & CABLES, Ltd. June 13, 1941, No. 7497. Convention date, June 15, 1940. [Class 38 (v)] When the tube 22 is oscillated about the vertical axis 37, mercury or other conducting liquid 36 in the horizontal portion of the tube is moved by centrifugal force past a constriction 35 to unite with a globule of mercury 39 and complete a circuit between conductors 37, 38. When the oscillation ceases, surface tension causes the mercury column to separate into its original two parts. A duct 40, into which mercury cannot enter, extends the length of the tube and facilitates the passage of gas from one part of the tube to the other. The oscillation of the tube may be produced by alternating current of suitable frequency passing through a coil of wire fixed to the vertical portion of the tube 22 and movable in a fixed magnetic field, the frequency, being regulatable by varying the tension of a wire by which the tube is suspended.
Patent GB-249539-A (GB)
Title: Improvements in and relating to light projecting devices
IPC: G08G1/095
Filed: 1926-03-18
Abstract: 249,539. British Thomson-Houston Co., Ltd., (Assignees of Halvorson, C. A. B.). March 18, 1925, [Convention date]. Road signals.-In a traffic signal the projector unit as a whole is removably secured to the housing by means of screws 11<a>, several housings being bolted together side by side or one above another, the assembled signal being mounted on the top of a standard or suspended from a crosspiece 33.
Patent GB-581707-A (GB)
Title: Improvements in or relating to high frequency electron discharge apparatus
IPC: H01J25/06
Filed: 1944-04-24
Abstract: 581,707. Discharge apparatus. SPERRY GYROSCOPE CO., Inc. April 24, 1944, No. 7583. Convention date, April 26, 1943. [Class 39 (i)] Electron discharge apparatus comprises an evacuated envelope and two pairs of electrodes 13 and 14 forming a pair of aligned gaps and includes conductive means having portions 11 and 12 exterior to the envelope and an inner portion 16 forming part of the envelope, these conductive means forming a cavity resonator having said gaps as portions thereof, and an electrode stream passes through the gaps from cathode 32 to collector electrode 22. The portions 11 and 12 are clamped on tube 16 by bolts 24 and gaskets are provided between the members to render the joints vacuum tight. Static charges on tube 16 are removed through a high impedance conductor 49 connected to the outer shell of the resonator by a. quarterwave concentric transmission line 50. The outer part of wall 12 is made thin and flexible so that the outer shell 36 of the resonator can be removed and different sized shells substituted without breaking the joints at the ends of tube 16. Specifications 523,712, 548,725 and 555,162 are referred to.
Patent GB-1424262-A (GB)
Title: Disposable central venous catheter
IPC: A61B5/296
Filed: 1973-02-15
Abstract: 1424262 Catheters; electrocardiographs C R BARD Inc 15 Feb 1973 [16 Feb 1972] 7601/73 Heading A5R A disposable central renous catheter comprises a length of flexible tubing 11, Fig. 2, made of a material to which the body does not react; an electrical conductor 12 embedded in the wall of the tubing and extending lengthwise thereof and being electrically insulated from the interior surface 13 and exterior surface 14 of the tubing; an electrode 16 connected to the conductor 12 and mounted at the exterior surface of the tubing adjacent to but spaced from the distal end 17 of the tubing; and a terminal 18 for the conductor adjacent the proximal end 19 of the tubing for connection by a lead 21, Fig. 1, to an electrocardiograph 22. The tubing 11 is intended to be placed in the superior vena cava. The proximal end 19 of the catheter is provided with an adaptor 20 connected by tubing 25 to a three-way valve 23 having connections to a manometer tube 24 for monitoring central venous pressure and to an intravenous feed bottle 27. A needle may be inserted directly into the tubing 11 for injecting medicine into the catheter. The electrode 16 shown is formed by turning the conductor 12 out towards the exterior surface 14. In an alternative form the outer wall portion is removed to expose the conductor. The terminal 18 is formed with a circular socket (31), Fig. 3 (not shown), adapted to receive a pin end of the lead 21.
Patent GB-726579-A (GB)
Title: Improvements in or relating to methods of chemically treating solid particles in liquid suspensions
IPC: D21C9/10
Filed: 1953-03-19
Abstract: Solid in suspension, such as cellulosic pulp, <PICT:0726579/IV (c)/1> enters a reaction vessel through an inlet 8 and is forced towards the outlet 11 by the incoming suspension, a chemical being fed in a countercurrent direction from pipe 9, and a wash liquid from pipe 10, the spent liquor being drained off through pipe 4.  The fibres are passed in through scraper arm 6 arranged over a false bottom 2 mounted on rotating shaft 5 in the manner described in Specification 717,654, [Group I], and ascend past agitator arms 7. The bleaching reagent from pipe 9 increases in concentration as the pipe is approached and then diminishes, Fig. 2 (not shown). Between the pipe 10 and the outlet 11 washing takes place so that the fibre is freed from the chemical reagent.  A second reaction may take place above the first.