baber/WOPTO huggingface dataset:
Patent GB-1351309-A (GB)
Title: Photographic silver halide emulsions
IPC: G03C1/015
Filed: 1971-08-19
Abstract: 1351309 Silver halide emulsions EASTMAN KODAK CO 19 Aug 1971 [20 Aug 1970] 38969/71 Heading G2C An emulsion of silver chloride, thiocyanate or citrate is converted to an emulsion of silver bromide or bromide iodide in the presence of a salt of gold, platinum, palladium, ruthenium, rhodium, iridium or osmium, the noble metal salt being added (at a concentration of 3 x 10<SP>-7</SP> to 3 x 10<SP>-</SP><SP>5</SP> mole per cent based on silver halide) to the emulsion before the conversion step or before 80% completion thereof. The conversion may be incomplete. A mercury salt may be added (as antifoggant) at any stage.
Patent GB-1213955-A (GB)
Title: Process for producing acetaldehyde
Inventor: FREMONT JOSEPH MELVIN
IPC: C07C45/34
Filed: 1969-08-04
Abstract: 1,213,955. Acetaldehyde. E. I. DU PONT DE NEMOURS & CO. 4 Aug., 1969 [5 Aug., 1968], No. 38988/69. Heading C2C. Acetaldehyde is prepared by reacting ethylene and oxygen with an aqueous solution containing a Pd(II) compound catalyst, a redox copper salt, chloride or bromide ions, and a vanadium compound at a concentration effective to catalyse the destruction of byproducts which are precursors of oxalic acid. The ethylene and oxygen may be reacted separately or simultaneously with the aqueous solution. A further solvent such as acetic acid may be present. HCl may be fed to maintain acid conditions.
Patent GB-1498425-A (GB)
Title: Mining machine
IPC: E21C35/20
Filed: 1975-09-04
Abstract: 1498425 Mining machines DOSCO OVERSEAS ENG Ltd 4 Sept 1975 [6 Sept 1974] 39009/74 Heading E1F [Also in Division B8] A mining machine comprises a cutting head 4, a conveyor 7 for conveying mined material rearwardly of the machine, and an extendable discharge conveyor 12 for unloading the mined material to one side of the machine. The conveyor 12 may comprise a main frame 30 pivotally mounted for movement about a horizontal and a vertical axis and a telescopic extension 34, a constant tension of the belt being maintained during extension and retraction of the extension 34 by means of a roller 40 carried by the extension, a roller 41 carried by the main frame and a tension roller 42. Alternatively the constant tension may be maintained by forming a loop in the belt between two rollers mounted on the main frame. The mined material in front of the machine may be collected by an endless chain conveyor encircling the front of the machine for conveying the material towards one side and subsequently rearwardly of the machine, or by a gathering apron having collecting arms for sweeping the material on the apron towards a centrally positioned conveyor. The material is transferred from the conveyor 7 to the conveyor 12 by means of apertures 9 or 10. The discharge conveyor 12 may be mounted on the main frame of the machine and the cutting head and conveyor 7 mounted on a sub-frame mounted for forward and rearward movement on the main frame. Alternatively the conveyor 7 may be mounted on the main frame and a further conveyor together with the discharge conveyor are mounted for forward and rearward movement on the main frame. The cutting head 4 may be mounted on a telescopic arm 3 which is pivotable about a horizontal and a vertical axis.
Patent GB-1077469-A (GB)
Title: Method for producing diamond
IPC: B01J3/08
Filed: 1964-09-25
Abstract: <PICT:1077469/C1/1> <PICT:1077469/C1/2> Diamond is produced from another form of carbon by subjecting a body of said carbon to an explosively generated shockwave which impinges on substantially the whole of at least one face of the carbon and whose amplitude is so correlated with the density of the carbon that it develops therein a maximum temperature below 2000 DEG  C. and a pressure from 100 to 700 kilobars sufficient to convert at least part of the carbon into diamond.  The carbon body may have a planar face which is subjected to the shock wave simultaneously over the whole area of the face and the wave may be reflected back into the carbon from a planar face opposite that initially subjected to the wave.  The explosive used to generate the shock may be contiguous with the carbon or separated by a gap or mechanically weak separator, e.g. as for a flying plate. The carbon may be placed in relation to a body of liquid so that after it has been subjected to the shock wave the residue of carbon is caught in the liquid from which it is easily recovered.  One type of apparatus, Fig. 2, suitable for use in the process of the invention comprises a plane wave generator 10 which detonates a charge of standard explosive 12 which is in contact with more high explosive 14 in a shell 20, e.g. of glass, surrounding the sample of graphite 16 which may be spherical, contained in a copper shell 18 which are placed in the tank 22 filled with sand 24.  In another embodiment illustrated by Fig. 4, a plane wave explosive generator 28 detonates a high explosive 29 which rests on a "flying plate" 30 made of metal supported by plastic stand-offs 32A, 32B, which are supported upon a metal ring 34.  Carbon 36 is placed in an aperture in 34 supported on a metal plug 38, on detonation the flying plate shears the edges of the plate from the central position and impact from the plate applies pressure to the carbon.  Examples of suitable carbonaceous materials include graphite, artificial graphites and graphitic carbons, petroleum coke, coal coke and lamp-black. missing page 30
Patent GB-338042-A (GB)
Title: Improvements in and relating to selective control mechanism suitable for variable-speed gearing and other purposes
IPC: G05G9/10
Filed: 1929-12-23
Abstract: 338,042. Schoening, H. Dec. 23, 1929. Controlling variable-speed gearing or other apparatus.-A control lever, which is moved laterally to select and is rocked to move the selected gear or other member, is disengageable in any position to which the member has been moved and is then free to select and move another member, enabling a large number of combinations to be made with a small number of gear members. Two members d, e, Fig. 1, fixed to control shafts b, c projecting from the gear box, are selectively engaged by moving a lever # into a recess h or g and are turned by rocking the lever, which may be disengaged in any position of the member d or e. Projections l, m on the members move over fixed tablets i, k which bear letters and numerals indicating the various combinations which may be made. As shown in Fig. 3, three control rods i are formed with rack teeth engaged by toothed segments m, which are selectively connected to a shaft b by a pawl c pivoted in a slot in the shaft. The selection is made by moving a lever e laterally, and the selected rod is moved by rocking the lever together with the shaft b. The pawl c may be disengaged from the selected segment m in any position and is then free to select and move another segment and rod i. Pointers s on the segments project through an indicator scale.
Patent GB-340774-A (GB)
Title: An automatic cathead for use in well drilling plant or rig
IPC: E21B19/16
Filed: 1929-12-27
Abstract: 340,774. Well-drilling plant. FITZPATRICK, H. D., 94, Hope Street, Glasgow.-(Hill & Foster Co., Inc. ; Wichita Falls, Texas, U.S.A.) Dec. 27, 1929, No. 39535. [Class 85.] For making and breaking pipe &c. joints in well-drilling, an automatic cathead is provided comprising a normally rotating member, a rotatable drum carrying a jerk line, means for connecting and disconnecting the member and drum, and means for arresting motion of the drum at each operation of the connecting means. A bracket 2 secured to a draw works post has an integral bushing 3 which surrounds the hub 24 of a cathead 23 keyed to the line shaft ; roller bearings 29 are arranged between the parts 3, 24, and a bronze bushing 31 is supported on the part 3, lubricating means 32 being provided. A drum 8, to which is secured a tong-operating line 11, is loosely supported on the bushing 31 and has a rotatable key 41 adapted to be held in adjusted position by a spring pressed pin 43, Fig. 4, engaging a recess in a rocker pivoted to the drum. In operation, a spring pulled lever 15, Fig. 9, pivoted to the bracket 2, is rocked by a cord 21, a projection 17 thereon acting through a projection 42 on the pin 41 to move the latter into the path of a key 27 carried by the cathead 23. The drum 8 is thereby partially rotated to jerk the line 11, the pin 41 being turned to free the key 27 when the projection 42 engages a stop 12 on the bracket 2. The drum is then returned. Rubber buffers 40, carried by the drum, engage stops 9 on the bracket 2 at each end of the movement.
Patent GB-1201341-A (GB)
Title: Frame assembly
Inventor: PUCHALLA CHARLES
IPC: F16B12/30
Filed: 1967-08-30
Abstract: 1,201,341. Furniture joints. C. PLICHALLA. 29 Nov., 1968 [30 Aug., 1967], No. 39605/67. Heading A4H. [Also in Division B8] A framework comprises a plurality of elongated extrusions 12 of, for example, metal, e.g. aluminium, or plastics material, and at least one corner piece 13. The or each corner piece 13 is of hollow box structure and is provided in three faces 14 which lie at angles to each other with apertures 15. Further apertures 17, 20 are provided in walls of the corner piece 13 opposite the three faces 14 to allow access to the holes. The end faces of the extrusions 12 abut the faces 14 of the corner piece 13 and are secured thereto by screws 31 which project through the apertures 15. In the construction shown, the screws 31 each co-operate with a continuous recess 30 of circular section formed in an extrusion 12 an outer part of the recess being shaped such that it co-operates with locating means 21 provided on the corner piece 13. The aperture 20 has the cross-section of the interior of the corner piece 13 such that a lipped insert may be placed therein for the attachment of cover plates (Fig. 4, not shown). A partition carrying, clampable slider may be provided about the recess containing part 25 of the extrusions (Fig. 5, not shown).
Patent GB-1444079-A (GB)
Title: Brushtype seal assemblies
IPC: F16C33/78
Filed: 1973-09-11
Abstract: 1444079 Seals SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 11 Sept 1973 [11 Sept 1972] 39791/75 Divided out of 1441000 Addition to 1427095 Heading F2B A sealing arrangement in a ball-nut transmission mechanism comprises a part-helical sealing element 71, preferably of galvanized iron wire, the sealing element being coated with synthetic fibre flock in accordance with the disclosure of Specification 1,427,095.
Patent GB-1079387-A (GB)
Title: Corrugating adhesive and process for preparing the same
Inventor: SCHOENBERGER JOHN JOSEPH
IPC: C09J103/02
Filed: 1965-09-17
Abstract: An adhesive is made by mixing ungelatinized unmodified starch or ungelatinized chemically modified starch, water and alkali such that the resulting slurry contains 10-40% solids and has pH 8-13, and heating the slurry at 70-165 DEG  F. for not more than 1 hour.  The composition has a gel point of 135-160 DEG  F. and a Stein Hall viscosity of 20-90 seconds.  The heating process causes a swelling of the starch granules, which process may be terminated at a desired point by addition of e.g. borax, alum, cold water, ice, or acid to the reaction mixture. Exemplified starches are ungelatinized native starches, acid-modified starches, hydroxyethyl corn starch and corn starch phosphate ester.
Patent GB-1027895-A (GB)
Title: Pteridine derivatives
IPC: C07D475/10
Filed: 1963-04-18
Abstract: The invention comprises pteridine compounds of the formula <FORM:1027895/C2/1> wherein R is an alkyl group, e.g. Me or Et, a monocyclic aromatic hydrocarbon or heterocyclic group of not more than 8 carbon atoms, e.g. phenyl or thienyl or a cyclohexyl or cyclopentyl group, R2 is amino, R3 and R4 are hydrogen, methyl, phenyl, N-piperidyl, dimethylamino or, preferably, amino and A is a hydroxymethylene group.  The compounds are prepared by reduction of the corresponding ketones wherein A is a -CO- group, suitably by means of a bimetallic hydride such as sodium borohydride.  The products may be separated into their optical isomers.  Pharmaceutical preparations having diuretic and antihypertensive activity comprise the above pteridines in association with a carrier or diluent, preferably in a form adapted to oral administration.
Patent GB-1242135-A (GB)
Title: Catalytic compositions
Inventor: POLKOVNIKOVA ANTONINA GRIGORIE
IPC: B01J27/18
Filed: 1968-08-21
Abstract: 1,242,135. Catalyst compositions. NAUCHNO - ISSLEDOVATELSKY INSTITUT SINTETICHESKIKH SPIRTOV I IORGANICHESKIKH PRODUKTOV. 21 Aug., 1968, No. 39997/68. Heading B1E. [Also in Division C2] A catalyst composition comprises trilithium orthophosphate (Li 3 PO 4 ) and a filler which is asbestos or talc or pumice. The filler may constitute from 10 to 40 per cent by weight of the composition when asbestos, from 20 to 60 percent by weight of the composition when talc and from 20 to 35 per cent by weight of the composition when pumice. The catalyst composition may be prepared by precipitating trilithium orthophosphate from an aqueous solution containing a lithium salt or lithium hydroxide in the presence of excess alkali by for example trisodium orthophosphate dodecahydrate, mixing the precipitated trilithuim orthophosphate with filler, washing the resulting mixture and compacting and drying the washed mixture. The composition may be compacted by moulding into spheres having a diameter of 3 mm, which spheres may be dried, initially at ambient temperature and then at a temperature rising to 200‹C, over 10 hours. The filler may be mixed with the trilithium orthophosphate during precipitation thereof. Prior to being mixed with the trilithium orthophosphate, the filler may be treated with an inorganic acid, for example nitric acid, and thereafter washed with water, the acid used being an acid which does not form insoluble salts with compounds present as impurities in the filler; such pretreatment with acid is not necessary if the filler is of high purity, for example if the filler is pharmaceutical grade talc. Chrysotile is the preferred form of asbestos. The filler may be used in the form of a powder having a particle size not less than 60 (Tyler) mesh. The catalyst composition may be used in the preparation of allyl alcohol from propylene oxide by molecular rearrangement. Reference is made in the specification to a known catalyst composition comprising trilithium orthophosphate and a filler which is active carbon or diatomaceous earth.
Patent GB-1013298-A (GB)
Title: Electromagnetic fuel feeding pump
IPC: F04B53/10
Filed: 1963-10-14
Abstract: 1,013,298. Electromagnetic switches. VYZKUMNY USTAV PRISLUSENSTVI MOTOROVYCH VOZIDEL. Oct. 14, 1963 [Out. 12, 1962; July 29, 1963], No. 40446/63. Heading H2B. [Also in Division F1] A snap-action contact 6, 11 in the circuit of an electromagnet 1 of a fuel pump comprises a contact 6 on a rod 3 attached to the reciprocating armature 2, which contact engages the contact 11 mounted on a spring-loaded lever 9 connected through a spring 12 to a lever 16 having a roller 15 co-operating with a cam face 14 on the end of lever 9. With contacts 6, 11 closed electromagnet 1 moves the armature 2 upwards to stress spring 12 contacts 6, 11 remaining closed until roller 15 moves into a recess at the end of the cam face 14 whereupon spring 12 forces lever 16 to lift lever 9 and snap the contacts 6, 11 open. On return of the armature 2, contacts 6, 11 remain apart until a pin 18 on lever 16 is contacted by the end of a lost motion slot 21 in a link 20 to rotate lever 16 and release lever 9 so that contacts 6, 11 reclose.
Patent GB-950677-A (GB)
Title: Improvements in or relating to temperature-responsive electric switches
Inventor: ADOLPH CARL FREDERICK
IPC: H01H37/12
Filed: 1961-11-14
Abstract: 950,677. Thermal switches. P.M. & E.A. SUPPLIES Ltd. Nov. 14, 1962 [Nov. 14, 1961], No. 40628/61. Heading H2B. A contact-carrying bimetal strip 20 co-operates with a fixed contact 19 in the form of a screw or pin which is inserted in any selected one of a plurality of apertures 17 in a metal plate to set the operating temperature, and an adjusting screw 23 engages the strip 20 to provide further adjustment of the operating temperature.
Patent GB-1162222-A (GB)
Title: Improved Dispersions and Greases
Inventor: GROSZEK ALEKSANDER JERZY
IPC: C09K23/00
Filed: 1965-09-24
Abstract: 1,162,222. Lubricant. BRITISH PETROLEUM CO. Ltd. 14 Sept., 1966 [24 Sept., 1965], No. 40699/65. Heading C5F. A lubricant composition comprises a mineral or synthetic base oil and an oleophilic molybdenum disulphide which has been ground in an organic liquid. Examples of suitable organic liquids are n-heptane, octene-2, 2,2,4-trimethylpentane, cyclohexane benzene, toluene, CCl 4 , isopropyl alcohol and silicone fluids. The synthetic base oil may be a polyglycol ether, polyphenyl ether, fluorinated hydrocarbon, silicate ester, silicone oil, or an organic polyester, e.g. dioctyl sebacate, dinonyl sebacate, octyl nonyl sebacate, the corresponding azelates and adipates, and liquid diesters of aliphatic dicarboxylic acids and phenols. The molybdenum disulphide may be ground directly in a base oil of hp. not more than 500 C. The MoS 2  may be used in amount 2-20% by wt. in dispersions and up to 50% by wt. in greases based on the total composition. Additives such as tricresyl phosphate, zinc dithiophosphate, phosphosulphurized terpene may be present.
Patent GB-1377919-A (GB)
Title: Actuating systems for self-dumping barges
Inventor: ONDERKA G
IPC: F15B11/16
Filed: 1973-08-30
Abstract: 1377919 Hopper barges DEGGENDORFER WERFT UND EISENBAU GmbH 30 Aug 1973 [31 Aug 1972] 40769/73 Heading B7A [Also in Division F1] An hydraulic circuit for closing and opening the two halves 1, 2 of a hopper barge comprises two cylinders 5, 6 located at a respective end of the barge and a three position valve 11 which in position a allows the halves 1, 2 to open due to the weight of cargo, and, when the barge is empty, in position b to close the two halves or, in position c to open the two halves. In position a pump 12 is ineffective and the rods of the cylinders 5, 6 extend causing fluid to flow from the rod ends of cylinders 5, 6 to the piston end of cylinder 5 via a line 19 and excess fluid to flow therefrom to a reservoir 14 via a throttle 13 in a pipe 10. Simultaneously fluid flows from a reservoir 15 via a line 16 to the piston end of cylinder 6. In position b, a pump 12 delivers fluid to the cylinder 5 to retract the rod whilst fluid from the piston end exhausts to the reservoir 14 via throttle 13. Due to the closing of the two halves the rod of cylinder 6 is also retracted and fluid flows from its piston end partly to the rod end via a one way valve 17 and partly to the reservoir 15. When closed, pressure is maintained on the cylinder 6 by the pump 12 via the line 19 and a spring biased one way valve 21 therein. In position c, the rod of cylinder 5 is extended by the pump 12 delivering fluid via line 8 whilst fluid flows from the rod end to the reservoir 14 via lines 7 and 10. Simultaneously the rod of cylinder 6 is extended as the two halves move apart and fluid flows from its rod end via a one way valve 20, lines 19, 7 and 10 to the reservoir 14 and to its piston end from reservoir 15 via line 16.
Patent GB-1321442-A (GB)
Title: Wagons having slidable wall panels
IPC: B61D19/00
Filed: 1970-08-25
Abstract: 1321442 Wagon doors RHEINSTAHL AG 25 Aug 1970 [29 Aug 1969] 40880/70 Heading B7L [Also in Division E2] A covered goods wagon has sliding walls or doors 1 lying in a single plane in the closed state. The walls or doors 1 are movable transversely to to the side of the wagon in order to mount a guide roller 10 on to a corresponding supporting rail 11 at each side wall 1 in order to slide the door open substantially in its own plane and for dismounting each roller 10 from its respective rail 11 after a sliding closing movement of the wall or door. The forward edge of the wall or door 1 is supported during the mounting and dismounting movements by a pivotable plate 4 which is rigidly fixed to a vertical shaft 3a rotatable about its axis so as to cause the transverse movement of the forward edge of the wall or door. The wall or door 1 and the plate 4 have co-operating convex and concave substantially spherical surfaces in the form of a roller 5 and a socket 4a respectively. The convex and concave surfaces support the forward edge of the wall or door 1 via roller 5 at a point on the plate 4 which is non-coincident with the axis thereof. The wall or door 1 carries, adjacent the forward edge, a lever which is pivotable about a pin 13 whose axis is perpendicular to the plane of the wall or door. The lever has a downwardly extending arm 6 engageable with the plate 4, operation of the lever using the engagement with the plate as a fulcrum causing the initial part of the sliding opening movement of the wall or door. The plate 4 also includes a part-cylindrical channel 4d which communicates with the socket 4a and a lip 4e which forms the fulcrum, against which lip 4e, the lever arm 6 abuts in order to push the roller 5 from the socket 4a into the channel 4d during the initial opening sliding movement of the door. In a further embodiment described with reference to Fig. 6, the socket 4a forms the concave surface and the end of the lever arm 6 carries a supporting roller 9 or 9a forming the convex surface and is rotatable about an axis perpendicular to the plane of the wall or door, the socket 6b acting as the fulcrum whilst the roller 9 or 9a rests therein and the lever pivots about the rotational axis of the roller, the roller then rolling into the channel 6a. The roller 9 or 9a may be replaced by a partspherical convex surface 9 or 9b, integrally formed with the plate 4 so as to act as the fulcrum.
Patent GB-1090819-A (GB)
Title: Tape spool drive mechanism
IPC: G11B15/43
Filed: 1964-07-06
Abstract: 1,090,819. Winding webs. R. D. LACY. Sept. 27, 1965 [July 6, 1964], No. 41065/65. Divided out of 1,057,599. Heading B6B. [Also in Divisions F2 and G5] Tape 1, particularly record tape proceeding from a punching or reading station, is fed around a roller 21 on a compliance arm 22, a guide-roller 23 with a single outward flange to a reel 25 with a single inward flange. A friction-driving flange 35 on a constantspeed motor (31) is coupled to a driven flange 30 driving the reel through an infinitely-variablespeed friction drive (see Division F2) whose ratio is controlled by the position of the pivoted arm 22 carrying the roller 21 such as to maintain constant tension in the tape. The arm 22 is resiliently biased clockwise, and in the extreme clockwise position (corresponding to infinite speed-reduction ratio) actuates a switch to switch off the motor to save transmission wear.