baber/WOPTO huggingface dataset:
Patent GB-787049-A (GB)
Title: Process for the preparation of hydrogenation catalysts and hydrogenation processes using such catalysts
IPC: B01J27/051
Filed: 1956-02-23
Abstract: A catalyst for the hydrogenation of aromatic hydrocarbons is made by impregnating alumina with compounds of nickel and molybdenum, calcining, and then treating with a mixture of hydrogen and hydrogen sulphide for at least 30 mins. at 110 DEG  to 215 DEG  C., to produce a partially sulphided catalyst.  The proportions of nickel and molybdenum used are in atomic ratio between 1/4 and 2/3 to 1, and preferably 1/2 to 1.  The total metal content is 5 to 15 per cent by weight of the product.  The alumina used is microporous and preferably contains 1 to 7 per cent of silica, and is calcined at 500 DEG  to 600 DEG  C. to convert the alumina to the gamma form.  The proportions of hydrogen and hydrogen sulphide used in the sulphiding treatment are in the mole, ratio between 1 and 40 to 1 and preferably about 12 to 1.  Nickel compounds used are nickel carbonate dissolved in ammonium hydrate, nickel nitrate, or nickel acetate.  The molybdenum compound specified is ammonium molybdate.  These compounds may be added together to the alumina and then calcined to form the oxides at about 500 DEG  C., or the impregnation and calcining may be effected with each compound separately, preferably the nickel compound is added first.  The catalyst may in addition contain tungsten added as ammonium tungstate, to form a mixture of oxides in which the proportions of tungsten and molybdenum are between 1/4 and 1 to 1.  In a preferred form, the alumina is impregnated with the 3 metal compounds mixed in equal atomic ratios, and after calcining, the product is further treated with ammonium molybdate to bring the atomic ratios of Ni/Mo/W to 1/2/1.  The total metal content of the product is from 8 to 25 per cent by weight.  The catalyst may be used to hydrogenate aromatic hydrocarbons or petroleum oils containing nitrogen or sulphur, and in liquid phase or vapour phase.  The catalyst may be used in a fixed or moving bed of granules or formed pieces, as a recirculated powder suspended in reactant vapours, or in a fluidized bed.  The catalyst may be regenerated by treatment with hydrogen, or by burning off the contaminants with oxygen alone or admixed with nitrogen.  U.S.A. Specifications 2,687,370 and 2,687,381 are referred to.
Patent GB-787613-A (GB)
Title: Improvements in or relating to suction cleaning nozzles
IPC: A47L9/04
Filed: 1956-02-23
Abstract: 787,613. Suction cleaner nozzles. EUREKA WILLIAMS CORPORATION. Feb. 23, 1956 [June 24, 1955], No. 5661/56. Class 8(1). The elongated mouth 18, Fig. 6, of a suction cleaning nozzle 10 is substantially closed by a plurality of coil springs 34 which vibrate in response to air flow through the mouth and serve to agitate the surface being cleaned. The nozzle body 10 may swivel on its hose connection 27, Fig. 3, so as to present to the surface either the mouth 18 or a mouth 16 having a brush 30 adjacent thereto. In a modification a bracket to which the ends of three coil springs are secured is adjustably mounted so as to allow the spacing above the floor to be varied. In a further modification the middle spring is secured at its midpoint whereas the ends are allowed to vibrate.
Patent GB-103913-A (GB)
Title: Improvements relating to Lubricators.
Inventor: WILLIAMS LLEWELLYN WYNN
IPC: F16N7/12
Filed: 1916-04-19
Abstract: 103,913. Williams, L. W. April 19, 1916. Indicators actuated by floats.-A lubricating oilcup is provided with a level-indicator consisting of a float q connected to a signal arm o or to a weight suspended outside the cup.
Patent GB-1480042-A (GB)
Title: Rotary pumps
IPC: F04D5/00
Filed: 1976-02-13
Abstract: 1480042 Rotary positive-displacement fluidmachines ERYX CORP 13 Feb 1976 [10 March 1975] 05738/76 Heading F1F In a feed-water pump for a boiler an annular working-chamber 12 contains pistons 18 fixed to a ring 14, which is rotated by a gear-wheel 22 meshing with gear teeth 16 formed on and between the pistons. Water enters the chamber 12 through a chamber 26 and ports 8 and is ejected through a conduit 30 with the assistance of a compressible fluid e.g. steam from the boiler, supplied through a conduit 32. The compressible fluid is discharged at differing pressures through ports 34, 38. The comparatively low-pressure fluid issuing from the ports 38 may be used to charge the chamber 26 and a housing 24 for the gear-wheel so as to obviate leakage of air into the working chamber. The pistons may be furnished with sealing rings 20.
Patent GB-329654-A (GB)
Title: Improvements in safety valves of compressed air systems
IPC: F04B49/02
Filed: 1929-02-21
Abstract: 329,654. Heywood, C. F. Feb. 21, 1929. Fluid-actuated valves.-A fluidactuated relief valve 31, Fig. 1, stationed on the conduit 14 leading from a compressor to a tank is opened by a diaphragm 41 and rlunger 38 subject to the air pressure in a conduit 23, Fig. 3, communicating with the tank by a valve which closes towards the relief valve mechanism and is held open by a spring 28. The pin 39 which actuates the valve 31 passes through a sealing disc 36 which isolates the vent 30 to atmosphere. The plunger is pressed upwards by a spring 37 and is locked in either extreme position by spring-pressed balls 49 coacting with grooves in the plunger. A conduit 50 leads from the service outlet 6 of the tank to the space below the diaphragm 41, so that if the spring 37 fails to return the plunger, the tank pressure will do so when the outlet valve 12 is next opened for service. The conduit 14 is connected with the tank through the valve chamber 15, a passage 16 leading to a chamber 17 and closed against the tank pressure by a check valve, and a passage 22 leading to the conduit 23. Specification 329,310, [Class 7 (v), Internal-combustion engines, Starting &c.], is referred to.
Patent GB-566351-A (GB)
Title: Improvements in or relating to processes for the extraction and purification of insulin
IPC: C07K14/625
Filed: 1943-04-12
Abstract: In the manufacture of insulin, an alcoholic extract of pancreatic gland is acidified (if not already acid), the alcoholic content reduced to a point at which a "fat-like" fraction separates, the fraction removed and insulin and alcohol recovered from the remaining liquor.  The removed fraction (stated to consist mainly of fatty acids) may be freed from insulin by washing with a little acidified water.  To effect the separation, the alcoholic extract may either be diluted with water or may be evaporated under reduced pressure to an alcoholic content of 20-40 per cent.  An alkaline alcoholic extract containing, e.g. sodium bicarbonate is acidified prior to evaporation to pH 2-4 using sulphuric acid.  With some acid (e.g. hydrochloric acid) extracts, separation is effected, after reducing the alcohol content, by means of a centrifuge or by reducing the acidity to about pH 4-6.  In the latter case, the extract is acidified to about pH 3 before further evaporation.  After removal of the fat-like fraction, the remainder of the alcohol may be evaporated from the liquor under reduced pressure, the solution filtered, and insulin precipitated as the pierate.  Alternatively, the alcohol content may be reduced to below 25 per cent by evaporation or dilution, and excess picric acid added.  The Provisional Specification refers also to the use of acetic acid for extracting the pancreatic gland and also to a preliminary precipitation with ammonia when treating hydrochloric acid extracts.
Patent GB-1461321-A (GB)
Title: Copying lathe
IPC: B23B3/28
Filed: 1974-02-08
Abstract: 1461321 Copying lathes; frames; gauging REGIE NATIONAL DES USINES RENAULT 8 Feb 1974 [15 March 1973] 05848/74 Headings B3T and B3B A copying lathe for use in machining I.C. engine pistons comprises a frame 5 supporting two parallel driven spindles 17, 25 one carrying a workpiece 19 and the other carrying a template 28, a tool carriage in the form of a sleeve 36 whose axis 9 is coincident with that of the spindle 25 of the template 28, the carriage suporting a cutting tool assembly 45, the tool 54 of which extends outwardly of said axis and which mounts a template follower 55 which extends inwardly of the carriage sleeve 36 and is biased into engagement with the template, the carriage being traversible relative to the spindle whereby the tool is subjected to a translateral movement parallel to the axis of the workpiece, i.e. piston 19 and also a simultaneous reciprocating motion due to the follower engaging the template. The two spindles are driven simultaneously about their vertical axes by way of belts 31, 33, from a motor 35 at the same or different speeds by changing the pulleys 29, 31, for those of different sizes. In order to maintain alignment between the spindle and/or to compensate for tool wear or to effect a predetermined spindle alignment the work spindle 17 is mounted in a rotatable eccentric sleeve 12 which is rotated to displace the axis of the spindle 14 from the axis of the sleeve, this may be effected by screw and fluid pressure means to permit both slow fine adjustment or rapid adjustment when rapid increases in depth of cut may be required, calibrated scales are provided to facilitate accurate adjustment. The cutting tool or tools are supported in the holder 45 in a resilient manner by a flexible membrane 49, 50 at one or both ends of the holder. The tool(s) 54 (54<SP>1</SP>) may also be pivoted angularly about the axis 9 of the tool spindle 25 to permit the introduction of one tool and the displacement of the other such as in successive rough and finishing machine operations or alternatively to displace a grooving tool and introduce a chamfering tool.
Patent GB-416636-A (GB)
Title: Improved process for stapling continuous filaments
IPC: D01G1/08
Filed: 1934-02-22
Abstract: 416,636. Stapling continuous filaments by drawing. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on- Main, Germany. Feb. 22, 1934, No. 5850. Convention date, Feb. 24, 1933. [Class 120 (iii).] A bundle of continuous threads is reduced to staple lengths by drawing, the necessary tension being effected by a braking action, without gripping the bundle by pressure. The bundle may be wetted at intervals along its length. The bundle of filaments F is drawn and stapled between the feed mechanism a, b, c and the draft mechanism d, e, f, of which the rollers a, c, d, f are driven, and the rollers b, e are idle rollers. A stretching mechanism g, h, i may be inserted between the feed and draft mechanisms ; such stretching mechanism may be displaceable horizontally to alter the length in which breakage occurs, or vertically to alter the angular disposition of the bundle with respect to the rollers ; the speed of the rollers g, i is intermediate between that of the feed and draft rollers. A device for wetting the filaments comprises a water trough m, and revolving rollers l, k or k<1>, the latter being provided with a spiral projection n, or n<1>. In place of the roller systems a, b, c and d, e, f the smaller rollers may be replaced by fixed glass rods round which the bundle may pass several times, and the rollers b, e may be driven, and may be porcupine or spiked rollers.
Patent GB-795471-A (GB)
Title: Improvements in or relating to alloy steels
Inventor: HARRIS GEOFFREY THOMAS
IPC: C22C38/44
Filed: 1955-02-28
Abstract: Hardenable non-austenitic alloy steels have compositions within the following range in per cent by weight: C 0.05-0.3, Mn 0.1-4.0, Si 0.1-1.0, Cr 9.0-20.0, W and/or Mo 0.5-10.0, Nb and/or Ta 0-2.0, V 0-2.0, Ti 0-2.0, N 0.05-0.3, Al 0.05-2.0, B 0-0.05, Ni 0.1-1.7, Co 2.0-15.0, Cu 0/5.0, Fe and impurities the balance.  The provisional Specification describes also a range of alloys in which Ni and Co are optional constituents within the respective ranges 0-5.0 and 0-15.0, the ranges of the other constituents being as set out above. Specifications 638,110, 658,115, 730,272 and 733,146 are referred to.
Patent GB-536858-A (GB)
Title: Improvements in and relating to articles of wholly or partly tempered glass
IPC: E21C41/18
Filed: 1940-04-02
Abstract: 536,858. Cathode-ray tubes. PILKINGTON BROS., Ltd. April 2, 1940, No. 5896. Convention date, April 19, 1939. [Class 39 (i)] [Also in Group XXIII] A cathode-ray tube comprises two portions made by different glass-forming processes and united by fusion, one or both of the portions being of tempered glass. The conical body 12 may be made by blowing, while the saucershaped end 11 may be pressed and then tempered. The two parts are united on a glassblowing lathe [see Group XXIII].
Patent GB-606546-A (GB)
Title: Improved extractible shuttering device for adjustable location of anchor bolts and anchor plates in concrete foundations, walls, floors, and like supports
IPC: E04B1/41
Filed: 1946-02-26
Abstract: 606,546. Securing machinery. MILLER, W. H. J. Feb. 26, 1946, No. 5917. [Class 80 (iv)] [Also in Groups I and X] In locating an anchor bolt 2 in a concrete foundation, wall or floor in such a manner as to permit of lateral adjustment of the bolt, by positioning a hollow, truncated conical shuttering 1 around the bolt, with its smaller end adjacent a plate 3, and casting the concrete around the shuttering, in order to facilitate removal of the shuttering, it is provided with internal lugs 8 which are engaged by grooves 9 in a complementary conical device 7, to rotate the shuttering or to apply a withdrawal force to it. The bolt may be used for anchoring machine beds. Specification 606,545 is referred to.
Patent GB-642046-A (GB)
Title: Improvements in or relating to thermionic valve voltmeter
IPC: G01R17/16
Filed: 1948-02-27
Abstract: 642,046. Thermionic valve voltmeters. DEPARTMENT OF COMMERCE, DIRECTOR OF THE OFFICE OF TECHNICAL SERVICES OF. Feb. 27, 1948, No. 5974. Convention date, Dec. 10, 1945. [Class 37] [Also in Group XL (c)] A logarithmic voltmeter includes a series of saturable amplifiers from the anode circuits of which two sets of output signals are obtained and combined in a push-pull circuit to produce a signal which is the sum of the amplitudes of all the output signals and is proportional to the logarithm of the voltage to be measured. As shown in Fig. 1, eight amplifiers 11 ... 18 having a linear law are connected in series and the signal or voltage to be measured is applied to the input terminal of the amplifier 11. A portion of the output of amplifier 11 is applied to the input of amplifier 12 and so on throughout the series. The output signal of each amplifier is inverted in phase with respect to the input. The output voltages of the odd numbered amplifiers 11, 13, 15, 17 are additively combined and applied to an inverter 20 and to an input lead 22 of a push-pull detector 24. The output of the inverter 20 is connected to a second input lead 26 of the detector 24. The output voltages of the even numbered amplifiers 12, 14, 16, 18 are similarly additively combined and applied to an inverter 28 and the input lead 26. The output of the inverter 28 is connected to the input lead 22 of the detector 24. The curves 30, 32, 34, Fig. 2, represent the amplitude of output signals from the amplifiers 16, 17, 18 as functions of the amplitude of the input signal applied to the amplifier 11. The curve 34 rises to saturation first, since the input signal to the corresponding amplifier 18 has been amplified by all eight amplifiers. The slope of the curve 32 is less steep because the output signal of the amplifier 17 has been amplified only by seven of the amplifiers and so on. The sum 36 of the several output curves approximates to a logarithmic curve.
Patent GB-254638-A (GB)
Title: Improvements relating to fluid pressure actuated mechanism for operating railway points and the like
IPC: B61L5/04
Filed: 1926-03-03
Abstract: 254,638. Fleet, E. F., and Westing- house Brake & Saxby Signal Co., Ltd. March 3, 1926. Fluid-pressure operation; electric control.- Railway points 1 are operated by fluid stored. under pressure in a cylinder 22 and passing through a reducing-valve 24 and reservoir 8 to the valve-box 6 and motor 3. The valves 9 - - 11 are operated by electro-magnets having separate control wires 12 - - 14 and common return 15. Valve 11 is the main power valve while valves 9 and 10 are separate for each direction. In corresponding contacts 16 - - 18 are actuated by a lever 19 which may be provided with the usual indication locking; the main contact 18 being energized only in the intermediate position of the lever.
Patent GB-162475-A (GB)
Title: Improvements in and connected with elastic wheel tyres and wheels of vehicles
IPC: B60C5/18
Filed: 1920-02-28
Abstract: 162,475. Harper, W. J. Feb. 28, 1920. Air iubes and chambers. -A sectional pneumatic tyre consists of air-tube segments 2 in separate covers 10 having closed ends and beaded edges 9 engaging flanged metal &c. carriers 1. The latter are formed with dovetail projections 6 adapted to slide under wedge-shaped ribs 5 on the wheel rim 3. The tyre segments are fitted with separate inflating- valves 4, and are secured on the wheel by side flanges 7 (continuous or segmental) and transverse bolts.
Patent GB-423974-A (GB)
Title: Means for protecting vapour ion valves against undesired arcs
IPC: H01J13/22
Filed: 1934-02-26
Abstract: 423,974. Metallic-vapour apparatus. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Vasteras, Sweden. Feb. 26, 1934, No. 6171. Convention date, March 1, 1933. [Class 39 (i)] A vapour ion valve comprises a cathode 4, which is connected to the metallic container 1, and a conducting deionizing grid 9, which is insulated from the container, and is arranged to form a partition between the upper and lower portions of the valve to separate the conducting vapour path from the upper portion. The wall of the lower portion is protected from the discharge by insulating and metallic screens 5, 8 which are secured to the container through one or more insulating members 10. The anode 2 is surrounded by a shield 3, and the exciting anode 13 is secured within a quartz tube 7. A member 6 screens the anode from the cathode.
Patent GB-511960-A (GB)
Title: Improvements in or relating to blind stitch sewing machines
IPC: D05B85/06
Filed: 1938-02-28
Abstract: 511,960. Sewing-machines. BELLOW, A. Feb. 28, 1938, No. 6181. [Class 112] In a blind-stitching machine, in order to change the vertical adjustment of the worksupport or plunger readily for operating on different parts of a garment presenting different thicknesses or numbers of layers, the height of the work-support is determined alternatively by an adjustable main stop and an auxiliary stop, preferably also adjustable, which is adapted to be readily moved into and out of the operative position. In the arrangement shown, the worksupport 1 is carried by an arm 2 secured to a rock-shaft 3 and pressed upwards by a spring attached to an arm 6 on the shaft 3. The upward movement of the arm 2 under the action of the spring is normally limited by a stop screw 8, adjustably mounted in the frame, engaging an arm 5 on the shaft 3, but it may be further limited by an auxiliary stop screw 11 engaging a flanged member 10 on the arm 2 as shown; the screw 11 is adjustably mounted in a member 12 which is slidable in a post 13 of the frame so that the stop 11 can be shifted laterally clear of the member 10 when the main stop 8 is required to be effective.
Patent GB-106099-A (GB)
IPC: A01D46/10
Filed: 1917-05-02
Abstract: 106,099. Johnson, B. April 24, 1916, [Convention date]. Drawings to Specification. Sack-holders.-A travelling cotton picker is provided with two hoods on which sacks may be suspended, the cotton being forced by compressed air to each hood alternately thus permitting the removal of a full sack and the attachment of an empty one.
Patent GB-105961-A (GB)
Title: Improvements in Vehicle Springs.
Inventor: JONES LYMAN DENISON
IPC: B60G11/46
Filed: 1916-05-02
Abstract: 105,961. Jones, L. D. May 2, 1916. Pneumatic springs.-The ordinary springs of a vehicle are provided with auxiliary pneumatic springs and reaction dampers. The pneumatic springs are formed of short lengths similar to pneumatic tyres 17 which rest in depending supports 10 of a bracket 9 fixed on the axle 5 so that the length of the springs is parallel to the axle. An upper bracket 12, attached to the ordinary springs 13, has shoes 16 formed to receive and secure the tyre-like springs, end pieces being continued downwards to act as caps. The upper surface of the bracket 12 is shaped to receive resilient balls 24 and bent over arms 23 rising from the lower bracket 9 rest on the top of the resilient balls to act as reaction dampers.
Patent GB-995569-A (GB)
Title: Improved photoelectric switch adapter for lamps, lanterns and the like
IPC: H01R33/94
Filed: 1963-02-18
Abstract: 995, 569. Photo-electric plug and socket adapters. SECURITON A.G. Feb. 18,1963, No. 6398/63. Heading G1A. [Also in Division H2] In a double ended plug and socket adapter of the kind described in Specification 995,568 in which the adapter contains a photo-electric cell 226 for switching a lamp or other appliance in response to changes in ambient light and comprises a cylindrical casing 202 having an extension 204 at one end containing a socket 206 for receiving a power consuming appliance and a plug structure 250 at the other end for insertion in a power supply socket, the plug structure 250 and casing 202 being rotatable with respect to each other, the photo-electric cell 226 is situated in a radial extension 200 of the casing 202, having a lateral opening fitted with a filter disc 222 which only permits light of the wavelengths of daylight to reach the photo-electric cell 226 and at least one opening A at one end to permit circulation of air in the adapter. A reflector 290 embracing the extension 204 protects the photo-cell 226 from light and/or heat from an appliance (Fig. 1 not shown) which may be controlled by the adapter. The centre contact 256 of the plug structure 250 is spring loaded to provide a friction grip when the plug structure is inserted into a socket.
Patent GB-1123159-A (GB)
Title: Double-seated valve
IPC: F16K11/04
Filed: 1967-02-10
Abstract: 1,123,159. Making valves. DANFOSS A.S. 10 Feb., 1967 [1 March, 1966], No. 6533/67. Heading B3A. [Also in Division F2] A double-seated valve having first and second closure members 9, 12 and a valve stem 8 is made by urging the first member 9 against its seat 2 with a predetermined force, attaching a second seat 3 to the housing 1, urging the second member 12 against its seat with the same force and connecting the second member to the stem or the first member. The first member 9 is urged against its seat by a spring 15 whose tension is adjusted to the correct amount by a screwed abutment 16. The second valve seat is fixed in the housing by flanging 5 and the second closure member 12 slid on the extension 11 of the first member. The second member is urged against its seat (by a device not illustrated) with the same force as the first member was urged against its seat. The second member 12 is soldered or brazed to the extension 11 while the pressure is maintained. In a modification, the second member could be secured to the stem 8 and the soldering 13 may be above the second member.
Patent GB-410069-A (GB)
Title: Improvements relating to automatic weighing machines
IPC: G01G21/00
Filed: 1932-12-07
Abstract: 410,069. Automatic - feed weighers. SIMON, Ltd., H., and BRIAN, J. C., Bird Hall Lane, Cheadle Heath, near Stockport. Dec. 7, 1932, No. 6579/34. Divided on 411,174. [Class 143.] In automatic machines for the bulk weighing of flour and other materials, the weighing bucket door is automatically locked open during discharge by linkwork which is released to allow the door to close when the starting handle is moved to set the machine for the next weighing. The hinged door u is held open during discharge by a link z connected to a pivoted quadrant y having a shoulder x which is engaged by the roller w on the retaining lever v. The pin 14 on the end of the lever v is lifted by a pin 13 on the arm 12 when the starting handle is operated thereby releasing the lever v and allowing the door u to close. The starting handle operates the lever arm 12 through lever arms 2, 3, link 5, lever 6, 8, link 9 and lever 10, 12. The door u is held closed by a catch 15.