baber/WOPTO huggingface dataset:
Patent GB-386154-A (GB)
Title: Improvements in and relating to draw benches for metal tubes, rods and the like
IPC: B21C19/00
Filed: 1932-03-04
Abstract: 386,154. Drawing tubes, rods, &c. SCHWADE, K., 79, Marienhofstrasse, Wolsdorf, and GEDIEN, P., 53, Alfredstrasse, both in Siegburg, Germany. March 4, 1932, No. 6637. [Class 83 (iv).] Grippers.-A draw bench for material which cannot be spooled, such as a tube g formed from strip stock and subsequently welded, comprises two carriages d, f moving alternately towards and away from each other and gripping the work in turn. Each carriage carries an arm i with a projection h which engages a chain c when a roller o on the arm which moves on guides p, r, falls through a gap s, but is disengaged when the roller rides up a curved surface through a gap q at the end of the movement. The idle carriage is returned by the engaged carriage through a cable k secured to the carriage f, and passing over a fixed roller l and a roller m on the carriage d. A weight n on the cable rests on an abutment n1, or the movement of the cable may be limited by a catch thereon. The operation is such that both carriages are in engagement with the chain for a short time, the weight n being lifted and then falling when the idle carriage is disengaged to move it rapidly in the return direction until the weight contacts the base n1 when both carriages move with the same speed. The engagement of the arm i also rocks the jaw v1 towards the stationary jaw v2 to grip the work g.
Patent GB-118125-A (GB)
Title: Improvements in or relating to Automatic Means for Gauging Work.
Inventor: SPILLER REGINALD ERNEST
IPC: B24B49/04
Filed: 1917-05-10
Abstract: 118,125. Spiller, R. E., Forse, L., and Maina, J. May 10, 1917. Turning.-Consists in gauging-devices for automatic lathes, &c., arranged to control an automatic stop-gear, so that when the work is not to gauge, the lathe is stopped before the finished article is parted from the stock. Figs. 1 and 2 show an arrangement applied to an automatic lathe. On the completion of the work, the lathe, by means of a rod 11, swings a lever 10 and with it a toothed quadrant 9 in gear with a pinion d on a spindle b. This spindle carries a toothed quadrant c in gear with a pinion 8 on a second spindle carrying a disk j and a gauge-arm e. On this arm are mounted a maximum gauge 14 and a minimum gauge 13. By the movement described above, the arm c is swung up towards the work, and if this is to gauge the gauge 14 passes over it and the gauge 13 is stopped. By this means an opening in the disk j is stopped in alinement with a bolt q. At the same time the plunger n is forced inwards against the spring p, and by means of a spring r pushes the bolt q through the hole in the disk. The collar o on the plunger at the same time rocks a lever 7 out of the way of a stop on a spindle s which is then rotated by a weighted arm w connected to a clutch or other device for stopping the lathe. A second arm t on the spindle s is however arrested by the bolt q, and the stop-motion is brought to rest before it has effected the stoppage of the lathe. Should the work not be to gauge, the disk j is brought to rest with the hole out of alinement with the bolt q, and the lever t is free to rotate, and with it the shaft s to stop the lathe. As the liner t rotates it strikes a bell 4 and calls the attention of the attendant.
Patent GB-549956-A (GB)
Title: Improvements relating to self-developable photographic materials
IPC: G03C1/42
Filed: 1941-05-14
Abstract: 549,956. Photographic emulsions containing developing agents ; developing. KODAK, Ltd., and KNOTT, E. B. May 14, 1941, No. 6781/40. [Class 98 (ii)] In coating plates, films, papers &c. with a silver halide emulsion which contains a developing agent, the pH value of the emulsion is adjusted to below 6.5 (6 being recommended) and is maintained below this value during addition of the developing agent and up to coating. In addition, the emulsion may have dispersed through it a substantially water-insoluble organic binder. With thin emulsion layers, adjustment of the pH value alone produces sufficient stability. The emulsion may be a normal bromide or unwashed chloride emulsion, a kinematograph positive emulsion. Hydroquinone, aminophenols, phenylene diamines and their derivatives are instanced as developing agents, in amount sufficient to give a satisfactory image on treating the exposed layer with an alkaline bath, preferably one containing also sulphite and bromide. The developing agent may be one into the molecule of which has been introduced a substituent (which may be high molecular), preferably one which does not greatly reduce the solubility, e.g. lauryl, heptyl, or dioctyl hydroquinone. As water-insoluble organic binders may be used a cellulose derivative, e.g. the acetate, or a natural or synthetic resin, e.g. a shellac, colophony, resins known under the Registered Trade Mark "Glyptal," gum mastic, dammar, sandarach, copal, kauri and coumarone resins. Salts of the resins can be used. To produce the dispersion, a solution of the binder (preferably below 10 per cent) in ethyl alcohol acetone or other organic waterimiscible solvent is added either to the liquid emulsion or to a gelatin solution which is subsequently added to the emulsion. The developing agent can be introduced into the emulsion before, during or after addition of the binder. The speed of an emulsion containing a water-insoluble organic binder dispersion may be increased by incubation, and an antifoggant may be incorporated therein. The invention is illustrated by three examples ; and formulae are given for two baths, a potassium hydroxide bath for rapid development, and an alkaline carbonate bath for normal development. Specification 510,090 is referred to.
Patent GB-525850-A (GB)
Title: Improvements in and relating to electrical immersion heaters
IPC: H05B3/10
Filed: 1939-03-02
Abstract: 525,850. Heating liquids electrically. DOYLE, J. D. F. March 2, 1939, No. 6790. [Class 39 (iii)] [Also in Group II] In the heating of liquids by passage of current through them, incrustation of the electrodes is prevented by making them of copper 94.3 per cent., silicon 3.5 per cent., and manganese 2.2 per cent.; or copper 70 per cent. and nickel 30 per cent. The electrodes are made in the form of gauze or cloth.
Patent GB-1426353-A (GB)
Title: 15alpha,16alpha-methylene-5alpha-androstanes
IPC: C07J1/00
Filed: 1973-02-12
Abstract: 1426353 15,16-Methylene-androstane compounds SCHERING AG 12 Feb 1973 [11 Feb 1972] 6819/73 Heading C2U Novel steroids of the formula (wherein R is H, acyl, C 1-4  alkyl or an oxygencontaining heterocyclic group and C<SP>1</SP>-C<SP>2</SP> is a single or double bond between the 1- and 2- carbon atoms) are prepared by chemical or microbiological oxidation of the corresponding ring A-saturated 3#-hydroxy-steroids containing a protected 17#-hydroxy group, followed, if desired, by #<SP>1</SP>-dehydrogenation (for example by bromination and dehydrobromination) and/or, if desired or necessary, by conversion to a free 17#-ol which if desired may subsequently be esterified or etherified. 17# - Benzoyloxy - 15α,16α - methylene - 5α- androstan-3#-ol is prepared by oxygenating 3#- acetoxy - 5α - pregn - 16 - en - 20 - one to give 17α - hydroxy - 3# - acetoxy - 5α - pregn - 15- en - 20 - one, reducing this to the 20-ol. refluxing this in a solvent with a zinc-copple couple and methylene iodide to give 3#-acetoxy-15α,16α- methylene - 5α - pregnane - 17α,20# - diol, oxidizing this with periodic acid to give 3#-acetoxy- 15α,16α - methylene - 5α - androstan - 17 - one, reducing this to the 17#-ol, converting this to the 17-benzoate and hydrolysing the 3-acetoxy group. 17# - Tetrahydropyranyloxy - 15α,16α- methylene - 5α - androstan - 3# - ol is prepared by hydrolysis of 17#-tetrahydropyranyloxy-3#- acetoxy - 15α, 16α - methylene - 5α - androstane, in turn prepared by etherification of the corresponding 17#-ol. The novel steroids are androgenic and anabolic agents and may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-1503262-A (GB)
Title: Cold extruded metallic blank and apparatus for manufacturing the same
IPC: B65D83/14
Filed: 1976-02-20
Abstract: 1503262 Extruding PRINTAL OY 20 Feb 1976 [21 Feb 1975] 06836/76 Heading B3P Cold extrusion apparatus for forming a hollow metallic blank (1), Fig. 1 (not shown), which is closed at one end, has a substantially cylindrical inner surface and an outer surface comprising a polygonal middle section (3) between a substantially cylindrical lower section (5) adjacent the closed end and a substantially cylindrical mouth section (2), the apparatus comprising a substantially cylindrical ram 6, and a ring die 7 including an upper cylindrical section of largest internal diameter for forming the section (2) of the blank, a polygonal intermediate section having a maximum internal diameter equal to or less than that of the upper section and a lower cylindrical section having an internal diameter less than the smallest internal diameter of the polygonal section. An aluminium disc 8 is extruded by the 'ram 6 into a space 9 between the ram and the extrusion ring. As the ram advances the external shape of the blank corresponds to that of the die 7 through which the ram is passing, the internal diameter meanwhile remaining constant. The blank may be used to make aerosol cans or felt-tipped pen tubes.
Patent GB-737908-A (GB)
Title: Non-return valve
Inventor: MACBETH WILLIAM EDWARD
IPC: F04B39/10
Filed: 1953-03-12
Abstract: 737,908. Non-return valves. TRESCO, Inc., and STERNE & CO., Ltd., L. March 12, 1954 [March 12, 1953], No. 6901/53. Class 135. A non-return valve for use with air compressors &c. comprises a flexible leaf obturator 4 which co-operates with one or more ports 3 and is fixed to the seating member at a point remote from the ports, a stop plate 6 to limit the opening movement of the obturator, and a spring plate 5 interposed between, and spaced from, the obturator and the stop plate. The various plates are crescent-shaped and are secured to the seating member by set-screws 7 at the ends of the horns of the plates. A spacing member 9 which folds over the stop plate and has its ends interposed between the ends of the obturator and spring plates is provided with tongues 10 engageable with flats on the screws 7 to prevent accidental turning of the latter. Plate 6 is ribbed at 8 to increase its rigidity. Plate 5 may be laminated. The valve shown constitutes a discharge valve, and the underside of the seating plate may carry a flexible leaf inlet valve co-operating with ports 2.
Patent GB-706376-A (GB)
Title: Stretcher-supporting framework for vehicles
IPC: A61G3/00
Filed: 1952-03-18
Abstract: 706,376. Ambulances. NYSTROM, K. G. March 18. 1952 [March 19, 1951]; No. 7004/52. Class 108(1) An omnibus may be converted into an ambulance vehicle by fitting internally a number of bow-shaped members 25 to the uprights 24 of which are pivoted stretchersupporting brackets 22, 23. The bows 25 are bolted at 30 to the floor 26 and are provided with screw-adjusters 27, 28 to adapt the bows to different internal dimensions of the vehicle. The uprights 24 are braced from the side frame member 39 by a pair of arms 34 which are also adjustable. The normal roof supports in the omnibus are replaced by the longitudinal beam 41 provided with appropriately positioned spacers 43, 44.
Patent GB-240728-A (GB)
Title: Improvements in welding burners
IPC: F23D14/46
Filed: 1925-03-16
Abstract: 240,728. Elbert, M. March 16, 1925. Blowpipe burners. - Oxygen and a combustible gas such as acetylene, hydrogen, or oil gas are led t'o the nozzle 1 of a welding burner through passages 9, 18 in a casing 7 controlled by cocks 8, 17 fitted with partly toothed wheels 24, 23 which either interengage or engage an intermediate toothed wheel 25 so as to be operable by a single lever 26. The oxygen passage 9 leads to a central recess in the casing 7 and the fuel passage 18 to an annular chamber 6 surrounding the central recess. A nipple 5 fits into the central recess and over the annular chamber 6. The oxygen issues from a central orifice 19 and the combustible gas from circularly-arranged orifices 20 in the nipple into a mixing-chamber 21 formed in an end-piece 3 and the mixed gases pass through a t'ube 2 to the nozzle 1. The endpiece 3 and nipple 5 are secured to the casing 7 by a knurled screw cap 4. The tubes 13, 14 through which the oxygen and combustible gas are supplied are soldered to a copper plug 10 which is secured to the other side of the casing by the internally-threaded end of the burner handle 11. The other end of the handle is fitted with a rotatable cover cap 12 which is bored for the passage of the tubes 13, 14. The parts 3, 4. 11, 12 and a stuffing-box gland for the cock 8 may be made of delta metal or aluminium.
Patent GB-563207-A (GB)
Title: Improvements in or relating to syphons, particularly for photographic print washing tanks
IPC: G03D3/02
Filed: 1943-05-07
Abstract: 563,207. Siphons; photographic washing tanks. PHOTOSTAT, Ltd., and TAYLOR, H. A. May 7, 1943, No. 7266. [Class 98 (ii)] [Also in Group XXIX] A siphon, more particularly for photographic washing tanks, is fitted with an overflow pipe, preferably coaxially disposed, the siphon and overflow action 'being capable of simultaneous and automatic operation so that if the supply of liquid to the tank exceeds the discharge through the siphon, the liquid on rising above the siphon escapes through the overflow pipe to an outlet common to the siphon and overflow pipe. Fig. 1 shows a washing tank 1 of stainless steel, with a supply pipe 3 feeding water through pipes 4 to vertical spray pipes 5, and with a discharge orifice 11, Fig. 2, leading into a semi-cylindrical pocket 7, the base support 8 of which has an aperture 12 in which is fitted a combined siphon and overflow pipe comprising a tube 13 extending into a drain pipe 14, a siphon bell 16 surrounding the upper end of tube 13 and having a cap 17 with internal ribs 18 engaging the top of said tube, and an overflow pipe 20 depending from an aperture in the cap through the tube 13 to the drain pipe 14. The device may be adjusted in height by adjustment of the supporting ring 15, and may be readily withdrawn from the aperture 12 when the tank is to be completely drained.
Patent GB-1458266-A (GB)
Title: Precursers of tetrzolyl derivatives of naturally occuring prostaglandins and their preparation
IPC: C07C405/00
Filed: 1974-02-18
Abstract: 1458266 Silylated tetrazolyl prostaglandin derivatives PFIZER Inc 18 Feb 1974 [26 Feb 1973] 7340/74 Heading C3S [Also in Division C2] The invention comprises tetrazole derivatives of the Formulµ III, IV and V wherein R 3  is tri-p-xylylsilyl or dimethyl-tbutylsilyl, R 4  is H, phenyl, 1- or 2-naphthyl or trichloroethyl; and R 5  is H, C 1-5  alkanoyl, benzoyl, p-phenylbenzoyl or 1- or 2-naphthoyl and their preparation. Aldehydes of V above are prepared by oxidizing the corresponding compounds of Formula IV above, obtained by hydrogenating the corresponding compounds of Formula III above, which are prepared by reacting compounds of the formula with [4 - (tetrazol - 5 - yl)butyl]triphenylphosphorium bromide.
Patent GB-865466-A (GB)
Title: Improvements in or relating to non-linear amplifier circuits
Inventor: NUTTALL THOMAS CAYTON
IPC: G06G7/24
Filed: 1958-03-07
Abstract: 865,466. Valve non-linear circuits. BUSH & RANK CINTEL Ltd. March 9, 1959 [March 7, 1958], No. 7387/58. Class 40(6) [Also in Groups XXXVI and XL(b)] A non-linear amplifier comprises a number of stages connected in cascade as regards their input terminals but in parallel as regards their output terminals. The amplifier comprises a cathode-coupled driver stage 22, 23 feeding cascaded stages each of which comprises a similar cathode-coupled pair 34a, 36a &c. Each of the valves 36 is direct coupled to the valve 34 in the immediately succeeding stage, but the outputs of all the valves 34 are combined in a common load resistor 38. The arrangement is such that with increasing input the valve 34e overloads and thereafter does not add further to the common output; valve 34d similarly overloads at a higher level and so on, the overall gain decreasing as stages successively become ineffective. As shown the arrangement is applied to television signals and the valve 36e drives a cathode-follower 46 which supplies an overall D.C.-stabilizing negative feedback to the grid of the valve 23 via a pulse driven four-diode clamp circuit 49-52, capacitor 26 and R.C. network 25, 27, 28. The clamp circuit is driven open by pulses occurring during the line blanking intervals. The potentials of the grids of valves 34b &c. and 46 may be adjusted by means of potentiometers 57a &c. When the bandwidth of the amplifier is several megacycles it may be necessary to compensate for delay in transmission from stage to stage: this is done by connecting the output anode of each stage to the common output terminal through an appropriate delay line. Alternatively, tappings on a single delay line of suitable length may be used.
Patent GB-1211058-A (GB)
Title: Improvements in or relating to the heat-treatment of aluminium alloy articles
IPC: C22F1/053
Filed: 1969-02-11
Abstract: 1,211,58. Heat-treating aluminium alloys. KAISER ALUMINIUM & CHEMICAL CORP. Feb. 11, 1969 [March 13, 1968], No.7436/69. Heading C7A. An alloy containing Zn and Mg such that the composition lies withing area ABCDA of Fig. 1, together with 0À2% to 0À5% of manganese and balance impurities is hot worked at a temperature above that at which the hardening phases are taken into solution, air-cooled so that it cools through the range 600 to 400 F. at a rate of 0À1 to 1À1F./seconds, and then naturally or artificially aged. Prior to working the alloy may be preheated at 800 to 950 F. for a period of 8 to 24 hours; after working the article may be naturally aged for 1 to 5 days and then artificially aged, possibly by a two-stage treatment of 8 hours at 190 F. followed by 8 hours at 300 F. Cooling after working may be effected in still air, or in an air blast which may contain moisture. The alloy may contain not more than 0À3% Si, 0À4% Fe, 0À1% Ti, 0À1% Zr, 0À1% Cu and 0À05% Cr- Use for machine frames and segments of cryogenic spheres is mentioned.
Patent GB-920303-A (GB)
Title: Process for the production of pyridyl alkyl ketones
IPC: C07D/
Filed: 1961-03-01
Abstract: Pyridyl alkyl ketones are made by reacting together in vapour form at a temperature of 250 DEG  to 650 DEG C. a cyanopyridine, a saturated fatty acid and water, in the presence of any catalyst that will catalyse the conversion of an aliphatic carboxylic acid in the vapour phase to a ketone, for example, thoria-alumina, uranium dioxide, manganese dioxide, alumina, alkaline earth metal oxides, lead salts, copper, coke, zinc oxide, chromium oxide, vanadium oxide or silica-alumina.  It is preferred to use an excess of fatty acid and water, and a molal excess of water over fatty acids.  The water may be produced wholly or in part in situ, for example, from the thermal decomposition of some of the fatty acid.  Examples describe the preparation of 3-pyridyl methyl ketone, 4-pyridyl methyl ketone, 3,5-diacetylpyridine, 3-methyl-5-pyridyl methyl ketone, 2-pyridyl methyl ketone, 3-pyridyl propyl ketone, 3-ethyl-4-pyridyl methyl ketone and 3-stearoylpyridine.
Patent GB-231475-A (GB)
Title: Improvements in or relating to bearings
IPC: F16C17/22
Filed: 1925-03-19
Abstract: 231,475. Sperry Gyroscope Co., (Assignees of Schein, A. E.). March 31, 1924, [Convention date]. Addition to 193,381. Thrust and fluid bearings.- In the bearings described in the parent Specification the babbitt or like bearing material and the material of the supporting base have substantially the same temperature coefficient of expansion so that film lubrication can take place at all temperatures. The supporting base 20 for the babbitt blocks 25 may be in one piece or may consist of a number of wedge blocks 21, Fig. 3, secured to a base ring by interlocking parts 22 and by screws 23 the blocks being separated by lubricant grooves 30. The blocks of each set 21, 25 may be integral with each other respectively. A composition of a babbitt and a brass for the blocks and base respectively is given in the Specification. As applied to a propeller thrust bearing the babbitt blocks 25, Fig. 1, on opposite sides of the flange 14 are tapered in opposite directions. The bearing casing 12 has a sealing ring 13 and a flange 33 so that lubricant supplied under pressure through an inlet pipe 31 fills the casing and passes out of the bearing through the passages 35, 37. The shaft 10 has radial passages extending outwardly from an axial oil passage 40. For relieving a bearing of initial load, passages 45, 46, Fig. 3, may be formed in the parts 25, 20 and connected to a source of oil at a relatively high pressure.
Patent GB-634035-A (GB)
Title: A portable hand-operated tool for driving nails, staples or the like
IPC: B25C5/11
Filed: 1948-03-12
Abstract: 634,035. Hand tools for nailing and stapling. PACKAGE SEALING CO., Ltd., CHEESEMAN, J. J., and CHANDLER, H. E. March 12, 1948, No. 7601. [Class 89 (iii)] In a nailing or stapling device, nails or staples fed by hand into a barrel 1 through a chute 6 are retained therein by a spring device until they are driven by a weighted ram 2 which during at least the first part of its stroke is unopposed by a return spring. In a nailing tool, the spring device comprises levers 18, 19 pressed together by leaf springs 42, 43 and pivoted at their upper ends 32, 33 within a ring 14 which secures a bush 5 to the lower end of the barrel 1, the bush having grooves 22, 23 within which the levers are retained by a cover 34. The levers 18, 19 are recessed at 28, 29 and 40, 41 to guide and receive the nails. The ram 2 is guided at the upper end by a cap 11 and bead 12 and at the lower end by an enlargement 10 on the driver 8 which is screwed into the ram. The tool is guided on the work 56 to be nailed by a spring tongue 52, 55 adjustable by a screw 57. In a stapling tool, the spring device comprises a spring-pressed ball and the guide 52, 55 is replaced by a groove in the lower end of the bush 5 which receives a wire to be stapled on to the work.
Patent GB-651989-A (GB)
Title: Improvements in electrically heated furnaces for drawing glass and analogous plasticmaterials
IPC: C03B37/029
Filed: 1948-03-12
Abstract: 651,989. Electric drawing furnaces. HADDAN, P. (Sklarny a Rafinerie, Drive J. Riedel, Narodni Podnik). March 12, 1948, No. 7606. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 12, 1948.] [Class 39(iii)] An electrically-heated furnace, for the drawing of threads from rods or tubes of glass or other materials which are plastic when heated, comprises a heating chamber containing two parallel electric heating coils 1, the rods or tubes 4 being arranged parallel to each other and in a row and passing through the gap between the two coils so that they may be drawn into fine threads according to known processes. The rods or tubes are introduced through ceramic or metallic guiding pieces 5 and the heating coils 1 rest on ceramic holding pieces 2 shaped to give the furnace a heart-like cross-section widening downwards in the direction of feed.