baber/WOPTO huggingface dataset:
Patent GB-603249-A (GB)
Title: Process for separating by liquefaction gaseous mixtures into their constituents
IPC: F25J3/06
Filed: 1945-09-07
Abstract: 603,249. Separating gases. SOC. L'AIR LIQUIDE, SOC. ANON. POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES G. CLAUDE. Sept. 7, 1945, No. 23115. Convention date, Dec. 19, 1940. [Class 8 (ii)] A process for separating a partially liquefied mixture of difficultly liquefiable gases into its constituents or group of constituents consists in passing the gaseous constituent, or constituents emerging from a separating, column at least three times in succession through separate groups of conduits, the conduits of each group being arranged in parallel and in heat exchange relationship with the gaseous mixture to be separated ; the said gaseous constituent or constituents being subjected to expansion with the production of external work between two successive heat exchanges. An apparatus for separating hydrogen and nitrogen hereinafter referred to as " hydrogen " from a mixture containing argon, and methane comprises a heat exchanger B and a separating column D in the lower part of which accumulates most of the argon and methane. From the upper part of the column D the gaseous hydrogen " is led through a group of parallel conduits E disposed in heat exchange relationship with the ascending " hydrogen " to the first stage F of an expansion engine. The expanded cooled " hydrogen " then traverses parallel conduits G, the heads of which are disposed nearer the top of the column D than are the heads of conduits E. The " hydrogen " on leaving the conduits G and having cooled the " hydrogen" in the upper part of the separating column D, is further expanded at H, and the cooled gas traverses final parallel conduits I, the heads of which are disposed nearer the top of the column D than are the heads of the conduits G.
Patent GB-1285537-A (GB)
Title: Lasers
Inventor: REYNOLDS GEORGE ARTHUR
IPC: H01S3/213
Filed: 1971-04-19
Abstract: 1285537 Lasers EASTMAN KODAK CO I9 April 1971 [2 March 1970] 23273/71 Heading H1C A liquid laser active medium comprises a pyrylium or benzopyrylium dye, preferably of the formula where R<SP>1</SP>, B<SP>2</SP>, R<SP>3</SP> are alkyl groups having up to 12 carbon atoms; R<SP>4</SP> and R<SP>6</SP> are hydrogen atoms or taken together form a methylene chain -(CH 2 ) n  where n is of value 1 to 4; R<SP>6</SP>, R<SP>7</SP>, R<SP>8</SP>, R‹ are each hydrogen atoms or one of the pairs R<SP>6</SP> and R<SP>7</SP>, R<SP>7</SP> and R<SP>8</SP>, or R<SP>8</SP> and R<SP>9</SP> together form a 1,3-butadienylene group while the remaining R<SP>6</SP>, R<SP>7</SP>, R<SP>8</SP> and R<SP>9</SP> groups are hydrogen atoms; R1<SP>0</SP> is a hydrogen atom, an alkoxy group having up to 6 carbon atoms, an alkyl group having up to 12 carbon atoms or a dialkylamino group wherein each alkyl substituent of the dialkylamino group has up to 4 carbon atoms and X- is an acid anion such as perchlorate. For improved solubility R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> preferably have more than 4 carbon atoms each. Concentrations of 10-<SP>1</SP> molar to 10-<SP>5</SP> molar may be used. The dye is dissolved in dichloroethane and may be pumped by a focused ruby or other pulsed laser or by a flashtube while being in a resonator. The dye solution may be circulated through the resonator to avoid local heating.
Patent GB-1201558-A (GB)
Title: Spark ignition internal combustion engines and their operation
IPC: F01L13/00
Filed: 1968-05-16
Abstract: 1,201,558. 558. Regulating I.C. engines; valve gear. GENERAL MOTORS CORP. May 16, 1968 [June 7, 1967], No.23312/68. Heading F1B. In a spark ignition I.C. engine an hydraulic lash adjuster 56 forms the pivot for a rocker lever 45, which forms part of the valve train of an inlet valve 26, and is selectively angularly displaceable to adjust the extent of opening movement of the valve. The lash adjuster 56 operates during engine operation to displace the locus of pivotal movement of the lever 45 irrespective of angular lash adjuster displacement, to take up clearance in the valve train. An hydraulic tappet 36 may be provided between the valve actuating cam on the cam-shaft 35 and the push rod 37. The V-8 engine shown in Fig.1 has the lash adjusters 56 for the two banks of cylinders 18 mounted in cylinders 55a in members 55 fired to rotatable shafts 53. The shafts 53 are connected by levers 54 to a common control shaft 54a which may be controlled automatically in accordance with the desired power output of the engine. The surfaces 58 of the lash adjusters 56 engage the concave surfaces 47 of the levers 45 and the centres of curvature 49 of the surfaces 47 coincide with the axes 52 of the shafts 53 when the inlet valves 26 are closed. The adjusters 56 are located between raised portions 47a of the levers 45 to reduce lever wobble. Lateral movement of the push rods 37 is prevented by metal plates 39 with slots 40 engaging the sides of the rods. A ball and socket conformation may be provided between the stem 26a of an inlet valve 26 and the end 48 of its rocker lever 45. Threaded sleeves 41 surrounding the rods 37 limit movement of the levers 45 under the bias of springs 61. The valve gear covers 32 may have transparent top portions 34. Fuel is delivered to nozzles 78 adjacent the inlet valves 26 by a fuel metering apparatus 71 controlled by a pressure signal from an orifice 69 at the throat of an air inlet Venturi 68. The inlet valve opening at idling may be 1/50 of the maximum opening and the ignition timing may be controlled solely as a function of engine speed. The variation in inlet valve opening allows lean fuel-air mixtures to be used as a result of the turbulence produced by throttling at the inlet port, e. g. air-fuel weight ratios of 18:1 to 23:1.
Patent GB-715667-A (GB)
Title: Method and means for circulating mud in rotary well drilling rigs
IPC: E21B21/00
Filed: 1952-09-17
Abstract: 715,667. Rotary well-drilling rigs. COLQUITT, O. Sept. 17, 1952, No. 23345/52. Class 85 In a well drilling rig, the Kelly rod 16 is connected to a suction pump by rigid conduits, so secured to the derrick t h a vertical movement with respect to the derrick is prevented. The conduits are slide pipe 39, elbow 40, standpipe 43, and elbow 44. The Kelly rod 16 is rotatably supported from a swivel sleeve 20. which is disposed about the pipe 39 and is movable vertically with respect thereto. A sealing joint is provided between the Kelly rod 16 and the pipe 39.  The swivel sleeve is supported  from a hoist rope 30 and is guided vertically by spring- loaded plungers 36 mounted on brackets 31 diametrically secured to the swivel sleeve. The plungers 36 engage vertical guides 37 secured on the derrick. To insert a new length of drill pipe into the string, the hoist line 30 is reeled in until the coupling 18 between the Kelly rod 16 and the drill pipe 15 is above the rotary table 13, then table bushes 14 are inserted and the joint 18 broken. Since one of the guides 37 is shorter than the other the associated plunger, at the completion of the reeling in of the cable 30, has become disengaged and the Kelly rod, slide pipe 39, elbow 40 and stand pipe 43 are rotated about the vertical axis of the stand pipe clear of the table. A new drill pipe is added, the drill string lowered, and the Kelly rod and stand pipe assembly swung back over the table and reconnected. Drill mud is passed down into the borehole about the string of drill pipe and is withdrawn laden with drillings through said pipe string by the suction pump.
Patent GB-1474182-A (GB)
Title: Metal grinding apparatus
IPC: B24B27/00
Filed: 1974-07-26
Abstract: 1474182 Grinding REDPATH DORMAN LONG Ltd 26 July 1974 [26 April 1973] 23371/74 Heading B3D  The claimed metal removing grinding apparatus as shown in Figs. 7 and 8 is described in Parent Specification 1,474,181. Fig. 10 shows the arm (33) pivotally supported on a support  shaft 37 which effectively forms a linear bearing along which the apparatus can float to an extent of about 2 inches.
Patent GB-1152862-A (GB)
Title: Improvements in or relating to Electromechanical Pedal Structures for Electric Organs
Inventor: TUCCI MORRIS LOUIS
IPC: G10B3/14
Filed: 1966-05-25
Abstract: 1,152,862. Swell control for electronic organ. WARWICK ELECTRONICS Inc. 25 May, 1966, No. 23376/66. Heading G5J. [Also in Division H1] An electromechanical controlling device 34, for example a potentiometer or switch, is actuated through a linkage by the expression pedal 28 of an electronic organ, mounted on a housing which contains an electronic circuit, e.g. an amplifier. The linkage comprises a link arm 40 pivoted at one end to the pedal at 42 and at the other end to a lever arm 38 attached to the shaft 36 of the device 34. In an alternative embodiment (Fig. 6, not shown), a rack (47) and pinion (48) arrangement is used to achieve larger angular rotation of shaft 36 for a given pedal depression. The amplifier housing is equipped with side walls 20 and a top wall 16 which extends horizontally from the rear edge 24 of the housing to an intermediate portion 26 of the housing whereupon the top wall then slopes downwardly and forwardly to form a front wall 18. The width of pedal 28 is selected to fit between walls 20 and the pedal is pivoted at 30. The amplifier is built on a board 32 which is pivoted at 33 and held horizontally in position by screws such that the board may be swung down when the screws are released. A further circuit-board (60), (Fig. 8, not shown) can be built on to an upright housing (51) which forms a funnel for the passage of hot air from the power unit of the amplifier, which is placed beneath it. The flow of air past the narrowed portion (65) creates a Venturi effect at this point and draws air up between the panel (58) and board (60) in order to cool the electronic components thereon. Board (60) is also pivoted at (57), such that it can be swung upwards.
Patent GB-1380625-A (GB)
Title: Cartridge-type lipstick or the like container
IPC: A45D40/06
Filed: 1972-05-18
Abstract: 1380625 Cosmetic containers EYELET SPECIALTY CO 18 May 1972 [26 Jan 1972] 23479/72 Heading B8P A cartridge type lipstick container 10, the base portion 11 of which may be decorative and relative expensive has a polypropylene or A.B.S. injection moulded base operating member 12 having locating and locking means between itself and the base portion 11, the member 12 being also integrally moulded with an inner sleeve 27 of the propulsion mechanism. Splines 18 on member 12 engage projections 16 on the portion 11 and a groove 19 on member 12 is engaged by pedestals 17 projecting from the inner wall of portion 11. The wall thickness and clearance between members 11 and 12 enables the pedestals 17 to be snapped into the groove 19 when the members are assembled. The upper edge 24 of each pedestal 17 is at a slight angle α whereas the lower edge 25 is at a greater angle. The angle of surface 25 forms a cam surface to facilitate removal and replacement of another cartridge 10. In another embodiment (Figs. 6-8) the groove is in the inside wall of the base portion 11 and the pedestals are on the outer surface of the base member 12. In this embodiment the angles of the upper and lower edges 24, 25 are reversed. In a further embodiment (Figs. 9, 10) the pedestals (41) are also on the base 12 of the cartridge. In a final embodiment (Fig. 11) which is similar to Fig. 5, the pedestals are part of the base 12 and projections 22<SP>1</SP> providing axial location are several discrete arcuate elements or may be a single circumferential inward bead.
Patent GB-360847-A (GB)
Title: Improvements in door latches
IPC: E05B65/32
Filed: 1930-08-05
Abstract: 360,847. Vehicle door fastenings. FORD MOTOR CO., Ltd., 88, Regent Street, London. Aug. 5, 1930, No. 23482. Convention date, Aug. 31, 1929. [Class 44.] In a latch for vehicle doors of sheet material and provided with means for locking the outside handle, the handle assembly is mounted so that it cannot be removed from the door whilst the handle is so locked, but can be removed for repairs &c. when the handle is free. The door comprises outside and inside panels 10, 11 secured to a pillar 12 allowing maximum width of sliding glass panel 59, and the latch 15, bent as shown to bridge the edge of panel 59, is pivoted at 18 in lugs bent up from an apertured plate 13 secured to pillar .12 and is biased to locking position by a spring 37. The outside handle 34 operates a follower 22 engaging an extension 16 of the latch. A horizontal rod 43 'rotatably mounted by means of clips 42 in a groove in the inner panel 11 has a cranked end 44 engaging a lug 40 on the latch which is withdrawn when rod 43 is oscillated by a handle 46. Rod 43 is biased to normal position by a spring 47. The hub 21 of follower 22 is mounted on a square spindle 28 (provided with a handle 34) between lugs 20, 23 carried by plate 13, a spring 27 biasing follower 22 to the normal latched position. Lug 23 is bent upon itself to form a member 25 provided with a square hole 26 through which the square end of the spindle is passed, a reduced portion 29 then registering with member 25 to allow rotation of the spindle. Hole 26 is disposed so that in normal position the end of spindle 28 is out of register with the hole so that the spindle cannot be withdrawn except after rotation through 45‹. A sleeved washer 31 serving as a bearing for handle 34 is enclosed by an escutcheon plate 35, members 31, 35 being rotatably and non-slidably secured on the handle by a washer 66 and spring 67, and escutcheon 35 is secured to the door by screws 36. A distance sleeve 77 is provided between the escutcheon and end of the handle. Rotation by washer 31 is prevented by lugs thereon engaging notches in panel 10. Owing to the disposition of aperture 26 the handle assembly cannot be removed from the door by removal of screws 36 when the handle is locked against rotation, the locking being effected by a transverse bolt 33 shot into engagement with a notch in member 31 by a rotating barrel lock of ordinary construction mounted in the handle, and secured therein in a sleeve 73 by an elliptical spring 74 sprung into registering grooves. The latch engages a member 62 adjustably secured by bolt and slot 65 within the channelled door post 64, the bottom of the channel and inner face of member 62 being serrated as shown.
Patent GB-360437-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/30
Filed: 1930-08-06
Abstract: 360,437. Safety razors. BRITISHAMERICAN SAFETY RAZOR CO., Ltd., 110, Cricklewood Lane, London.-(Assignees of Dalkowitz, G. ; 245, West 72nd Street, New York, U.S.A.) Aug. 6, 1930, No. 23520. Convention date, Aug. 27, 1929. Addition to 347,692. [Class 30.] In a safety razor of the kind described in the parent Specification wherein a single or doubleedged blade 16 is pressed forwardly against abutments 13 on a support 11 by depending lugs 30 on each side of a pivotal cover 15 engaging central edge abutment notches 60, 61, Fig. 3, in the blade, the cover is given first a downward movement towards the support and then a forward movement on the support towards the stops 13, final automatic locking means being provided. The blade is guided forward by a rectangular projection 19 on the support 11 engaging a central aperture 21 in the blade. In a notch 27 in the support 11 there is journalled a rod in the centre of which' are cut pinion teeth 34 which engage a rack 35 slidable in a slotted upper part of the handle. Each end of the rod carries an arm 31 on the end 33 of which is pivoted the cover 15. The rack 35 is moved backwards against a spring 38 for clamping by the conical end of a rod 39 engaging an incline 37 on the rack, the rod being threaded in the handle and rotated by a nut 48 engaging its squared end. By rotation of the nut 48 the cover 15 is first moved downwards on to the support, Fig. 7, and then forwardly to advance the blade, Fig. 8. During the latter movement the end 35<1> of the rack moves under the end of the cover thereby locking it. The blade may be double edged with symmetrical aperture and notches, or a backed single-edged blade, Fig. 3, may be used. Edge notches are provided in the blade support 11 to accommodate the lugs 30.
Patent GB-824640-A (GB)
Title: A process for the production of anhydrous cyanoacetic acid
Filed: 1958-07-22
Abstract: Anhydrous cyanoacetic acid is obtained from an aqueous solution of the acid which also contains inorganic salts by concentrating the solution in vacuo until the solution is substantially anhydrous, extracting the cyanoacetic acid from the evaporation residue by means of an aliphatic ester which boils at a temperature below 70 DEG  C. in vacuo, separating the cyanoacetic acid solution which is formed, and removing the extraction agent from the solution.  Suitable esters are, for example, methyl acetate, ethyl acetate and butyl acetate. The starting solution of cyanoacetic acid may be prepared by neutralizing chloroacetic acid with soda, adding the resulting solution to aqueous sodium cyanide, and adding sulphuric acid to the resulting solution to obtain cyanoacetic acid which contains sodium chloride and sodium sulphate as impurities.  The cyanoacetic acid is concentrated in a vacuum which does not exceed 60 mm. Hg. at a temperature below 85 DEG  C.
Patent GB-648852-A (GB)
Title: Improvements in or relating to the production of synthetic rubber
IPC: C08C3/00
Filed: 1947-08-26
Abstract: <PICT:0648852/IV (a)/1> Synthetic rubbers are made by polymerizing a conjugated butadiene, e.g. butadiene-1,3; isoprene; 2,3-dimethyl butadiene-1,3, alone or admixed with another monomer in an aqueous emulsion containing an emulsifying agent, coagulating the resulting latex, and treating the coagulated synthetic rubber with a solution of a material alkaline in aqueous solution.  The other monomers may be acrylonitrile, styrene, methyl methacrylate and vinylidene chloride.  The emulsifying agents may be sodium myristate, sodium palmitate, sodium oleate, sodium naphthalene sulphate or sodium lauryl sulphate.  The emulsion may also contain a catalyst, e.g. hydrogen peroxide, a catalyst activator such as sodium pyrophosphate, sodium oxalate, urea, glycine, myristic acid, and cross-linking inhibitors such as di-isopropyl-di-xanthagenodisulphide.  The latex prior to coagulation may be subjected to controlled oxidation or it may be compounded with age resisters, e.g. phenyl beta naphthylamine, alone, or a mixture of phenyl beta naphthylamine and myristic acid dissolved in benzene, softening or vulcanizing agents or pigments. The coagulation may be effected by the addition of acid, alcohol, or salts or a combination of these.  Specified coagulants are formic, acetic, propionic, oxalic, citric, tannic, hydrochloric, sulphuric and phosphoric acids, sodium chloride, sodium bisulphate, ethyl, propyl and butyl alcohols.  Specified alkaline materials are sodium or potassium or ammonium hydroxide, carbonate, sulphide, hydrosulphide, sulphite, thiosulphate, cyanide, thiocyanate, silicate, phosphate, acetate, di-thiocarbamate.  As shown, the latex from tank 1 and coagulant from tank 2 intermingle in tube 3, and the resultant coagulum in the form of fine particles falls directly into the alkaline solution in tank 4, which may be agitated by stirrer 5 and maintained above room temperature.  After the alkaline treatment the rubber may be washed with water until the wash water is neutral.
Patent GB-394167-A (GB)
Title: Improvements in or relating to conveyor troughs
IPC: B65G27/00
Filed: 1932-08-23
Abstract: 394,167. Jigging conveyers ; endlessbelt conveyers. RIDGILL, E., Dronfield, near Sheffield. Aug. 23, 1932, No. 23553. [Class 78 (i).] The top 18, Fig. 2, of the inclined side 16 of a conveyer trough is formed, or provided, with a bead 20 the cross-seetion of which is a closed, or nearly closed, figure. In a modification a tube 44, Fig. 3, is secured to an outwardly curved lip 40, or an inwardly curved lip, formed on the marginal portion 29 of the trough. In a further modification the side 29, Fig. 5, of a trough is bent over at 46 to form a nearly closed figure. Adjacent sections of troughing may be connected by plugs inserted in the beads.
Patent GB-906658-A (GB)
Title: Piezoelectric quartz device
IPC: H03H9/19
Filed: 1960-07-06
Abstract: 906,658. Piezo-electric crystals. EBAUCHES S.A. July 6, 1960 [July 9, 1959], No. 23675/60. Class 40 (8). A quartz crystal plate oscillating in a thickness-shear mode is excited by an electric field applied parallel to its major surfaces. The plate may be of AT cut and the field is applied in the XZ<SP>1</SP> plane. As shown, a bevelled quartz disc is provided with electrodes 2, 3 covering the whole of the crystal except in a gap 4 running parallel to the X axis. The plate is supported by conductive claws 9, 10, 11 at the ends of springs 6, 7, 8. These are supported from an insulated base 5 and provide conductive connections for the electrodes. In a modification, the plate 15, Fig. 5, is supported by claws 19, 20, &c. within an insulating annulus 25. The annulus also supports pairs 16, 17 and 16<SP>1</SP>, 17<SP>1</SP> of D-shaped electrodes spaced from the crystal plate. Opposite members of each pair of electrodes are connected by conductive bridges 22, 22<SP>1</SP>. It is stated that the invention results in an increase in the resistance of the crystal together with a much greater increase in its inductance.
Patent GB-339238-A (GB)
Title: Improvements in colour photography
IPC: G03C7/04
Filed: 1929-08-01
Abstract: 339,238. Goldsmith, J. N., Baker, T. T., Bonamico, C., and Spicers, Ltd. Aug. 1, 1929. Colour photography, multicolour screens for.- In the production of regular-pattern screens by means of dye-repellant resists as described in Specifications 322,432, 333,865, and 334,265, the dyes in a non-penetrative condition or medium are applied to the immediate surface layers only of the film support, which may be celluloid, nitrocellulose, cellulose acetate or any ester or ether of cellulose. In one form, a powdered dyestuff or a finely-divided dyed substance is rubbed or spread on to the film. Alternatively, a dye in suspension (for example, cochineal), or a viscous solution of a dye (for example, a solution in castor oil, castor oil and alcohol, or gum arabic), may be applied to the film. The dye may be sprayed on to the film in a further example. The Provisional Specifications state also that the dye may be applied by a roller. Specifications 217,557 and 225,659 also are referred to.
Patent GB-702092-A (GB)
Title: Improvements in lubricating devices for friction disc clutches
IPC: F16D43/10
Filed: 1951-10-11
Abstract: 702,092. Friction clutches. KREIS, F., and SOC. ITALIANA BREVETTI AUTOMOBILISTICI AR.L. Oct. 11, 1951 [Oct. 11, 1950], No. 23705/51. Class 80 (2) Lubricant is introduced into a friction disc clutch through a bore 15 in the shaft 1. The clutch member 4 has an annular wall 9 with a flange 16 forming an annular space 17 into which the lubricant enters. Holes 18 in the wall 9 in front of the spaces between the clutch discs are preferably arranged in helicoidal disposition. The lubricant is discharged through a series of holes 19 in the wall 6 of the clutch member 3 into a chamber 20 formed by the casing 2. Holes, slots, or recesses arranged in staggered relationship are provided in the discs to remove the lubricant on clutch engagement. As shown, centrifugal weights 12 held together by a spring 13 and having conical headed bolts 14 control clutch engagement. The lubricant may be introduced into the annular space 17 through holes or slots in the sleeve 5.
Patent GB-706513-A (GB)
Title: Improvements in or relating to footwear
IPC: A43B13/04
Filed: 1951-10-11
Abstract: 706,513. Platform soles for footwear. REICH, K. Sept. 23, 1952 [Oct. 11, 1951], No. 23737/51. Addition to 675,012. Class 17(2) The banding and the fabric covering encasing it of the composite platform unit described in the parent Specification are replaced by a banding of synthetic resin composition dyed to the colour of the shoe upper.