baber/WOPTO huggingface dataset:
Patent GB-1537394-A (GB)
Title: Steering mechanism
IPC: B63H25/16
Filed: 1976-05-07
Abstract: 1537394 Powered steering mechanism SKF NOVAAB 7 May 1976 [16 May 1975] 18932/76 Heading B7V A steering mechanism which comprises a member, e.g. a wheel 1 to actuate a steering device, e.g. a rudder 8, via a cable 3, screw-andnut unit 4, and a lever 7, has a servo-motor 9, e.g. an electric motor, connected to the unit 4 via a two way free-wheel clutch with the primary shaft of the clutch connected to the motor 9, and the free wheel shaft of the clutch connected to the unit 4. This enables manual steering from the wheel 1 to be effective at all times, e.g. when the motor 9 fails. Rotation of wheel 1 actuates a switch 2 which supplies current from a battery 15 via a relay 14 to the motor 9 to drive the output shaft of the unit 4 axially and rotate rudder 8. Simultaneous rotation of the cable 3 acts as a feed-back to operate a switch 2 and stop motor 9 in the desired position. A three-way switch 16 allows selection of either manual steering, servo steering, or automatic steering. For automatic steering a compass 20 and amplifier 21 regulate a relay 14 and motor 9. A clutch 22 isolates the steering wheel 1 in the automatic condition. A second steering wheel 17 can be brought into operation by a switch 19.
Patent GB-835945-A (GB)
Title: Improvements relating to bat-pushing apparatus for pottery kilns
Inventor: WALKER LESLIE
IPC: F27D3/04
Filed: 1957-06-18
Abstract: 835,945. Step-by-step conveyers. WEST MIDLANDS GAS BOARD. Sept. 17, 1958 [June 18, 1957], No. 19133/57. Class 78 (1). [Also in Group XII] Apparatus for pushing batts through a continuous pottery kiln comprises a pusher-bar 6, Fig. 1, mounted over a table 7 and reciprocated by an hydraulic ram 9 with a crosshead 10 connected by a pair of chains 11 running over sprockets 12 to both sides of both ends of the bar 6. In a modification, Fig. 2, pusher-bars 13 arranged over tables 14 mounted on a wheeled supporting structure 28 are coupled to driving- chains 20 by side-plates 15 having hooks 15<SP>1</SP> engaging the bars and wheels 18 running between vertically-spaced rails 19. With two or more transversely-spaced tunnels to the kiln, the crosshead 22 of the ram 26 is connected by a pair of chains 21 to an equalizing bar 24, Fig. 4, from which extend the appropriate number of drive-chains 20. The pusher-bars 13 may be arranged on counter-balanced cradles as in Specification 834,481. A ram control system, Fig. 5, comprises a pump 33 supplying liquid from a tank 37 through a reversing valve 35 to the ram cylinder 26. The piston 32 presents a full face to a high pressure for the charging stroke and a reduced area at a lower pressure for the retracting stroke. A. pressure-relief valve 38 and a pressure gauge 39 are provided.
Patent GB-1100031-A (GB)
Title: Improvements in or relating to hydraulic door closers and like devices
Inventor: AVNER DAVID ALAN
IPC: E05F3/10
Filed: 1965-05-06
Abstract: 1,100,031. Dashpots. GIRLING Ltd. 6 May, 1966 [6 May, 1965], No. 19138/65. Heading F2S. A hydro-pneumatic dashpot device which is for closing, e.g. a door with a rapid initial movement followed by a slower, damped, movement in the final stage of closing, comprises a sealed piston-and-cylinder unit, 1, 2, the cylinder containing an hydraulic liquid and a small quantity of gas, L-L, at a pressure, e.g. of 600 p.s.i., when not loaded, and the piston 2 having a rod 3 which is adapted to be connected to a swing door, not shown. The device is preferably installed inclined at an angle, e.g. of 5 degrees to the horizontal an inward movement of the piston 2 being relatively easy since liquid can pass through an orifice in the piston 2, the orifice being controlled by a distortable plate valve 4, flexure of which is limited by a collar 6. In the fully open position of the door the pressure of the gas is at its maximum the pressures on both sides of the piston being equalized. During the first part of the return movement of the door gas is returned from the left of the piston 2 to the right through a small annular clearance between the piston and cylinder so that there is very little resistance to the movement of the piston. When the piston reaches the part of the cylinder containing only liquid the movement is checked because liquid has to pass from the left to the right of the piston 2 through a small orifice, not shown, in the plate valve 4, the liquid being unable to pass through the clearance between the piston and cylinder.
Patent GB-1060386-A (GB)
Title: Improvements relating to venturi tubes for controlling diaphragm-actuated gas valves of gas-fired water heaters
IPC: F23N1/08
Filed: 1964-05-08
Abstract: 1,060,386. Valves. JUNKERS & CO. G.m.b.H. May 8, 1964 [May 11, 1963], No. 19183/64. Heading F2V. [Also in Division F1] The water fitting of a gas-fired continuous water heater has a water supply connection 11, Fig. 1, leading through passage 12 and flow regulator 17 to a high pressure chamber 13 separated from a low-pressure chamber 16 by a diaphragm 15. Water flow through passage 19 and Venturi 30 creates a vacuum in chamber 16 causing diaphragm 15 to regulate the gas valve (not described). The inner surface of the Venturi tube is radially outwardly stepped to the region of the suction ports. Passage 20 leads through a heat exchanger (not described) to passage 21, the temperature of flow through outlet connection 25 being adjusted by regulation of hot and cold taps 23, 24.
Patent GB-147144-A (GB)
Title: System of balanced frictionless sluice-valve, adapted to be operated automatically, for water-courses, rivers or the like
IPC: E02B13/02
Filed: 1920-07-07
Abstract: 147,144. Samain, P. April 27, 1914, [Convention date]. Void [Published under Sect. 91 of the Act]. Sluice gates.-A sluice valve for water channels, rivers, and the like comprises a verticallyguided tubular lift valve body a open at both ends, and of a closed cross-section, such as a circle or square, seating on the conduit connexion e between the higher and lower races of the water-course. The valve may be counterbalanced by a weight q, Fig. 1, and operated by a hand-lever u through the link t and rocking- beam m. The valve a, Fig. 2, has an enlargement at a<1> which enables it to act as a float and open automatically by the rise of the water, and to adjust itself by the varying water level. A valve for use on the lower end of the conduit e has its lower end enlarged to give a differential internal surface to enable the valve to operate automatically as the water level rises and falls in the upper race. In the arrangement shown in Fig. 2, the valve may also be adjusted by a screw c<1> operating through a flexible link b', the adjustment being indicated by a pointer and scale p<1>, g<1>.
Patent GB-835800-A (GB)
Title: Composition for removing carbonaceous and sludge deposits from internal combustion engine parts
Inventor: SWEETMAN JOHN RICHARD
IPC: C10L1/14
Filed: 1957-06-18
Abstract: A composition to remove carbonaceous deposits, sludge and rust from metallic parts, for example, by being added to the fuel or lubricating oil of an internal combustion engine comprises: (a) a refined paraffinic or naphthenic mineral oil with pH value between 6.9 and 7.1 and boiling range 550-750 DEG  F., (b) an organic solvent for tarry and gummy substances having a pH of 6.9 to 7.1, and (c) a normally liquid aldehyde with a boiling point above 302 DEG  F. which does not polymerize after admixture with the mineral oil and solvent at temperatures below its boiling point.  The aldehyde may be aliphatic or aromatic excepting formaldehyde, acetaldehyde or aldehydes which polymerize easily, e.g. furfural and is preferably an alkyl benzene, such as benzaldehyde, cinnamic aldehyde, phenyl acetaldehyde, phenyl propyl aldehyde, amyl cinnamic aldehyde, salicylic aldehyde, anisic aldehyde or mixtures of the above or a mixture of benzaldehyde and phenyl acetic aldehyde.  The solvent is selected from benzene, xylol or toluene with a pH of 7.  A preferred mixture comprises equal parts of the solvent and mineral oil to 100 parts of which mixture 2-2 1/2 parts of an alkyl benzene are added; the resulting mixture may be added to gasoline in the proportion of 2-10 parts of the additive to 98-90 parts of gasoline.  One part of the additive can also be added to 8-10 parts of the engine oil. Benzyl alcohol may be included in the composition of the additive.
Patent GB-221323-A (GB)
Title: Improvements relating to variable speed gears
IPC: B62M25/02
Filed: 1923-07-27
Abstract: 221,323. Farley, J. July 27, 1923. Hand-wheels. - Variable-speed gearing is operated through gearing from a hand-wheel 41, Fig. 1<a>, turning under an indicator 42 and locked by a spring-pressed dog-ended sleeve 43. The handwheel 41 may alternatively be provided with a knob 50, Fig. 5, to be grasped by the hand for rapid manipulation. In this works a spring plunger 51 operating a lever 52, which engages a cam 49 upon a spring latch 47 adapted to engage a series of notches 46 on the pillar 44.
Patent GB-844079-A (GB)
Title: Improvements in or relating to a method of copying printed or hand-written documents
IPC: B41M5/025
Filed: 1957-06-19
Abstract: 844,079. Copying documents. D'HAUTERIVE, G. M. G. June 19, 1957 [July 11, 1956], No. 19343/57. Class 98(2) [Also in Group XVI] A printed or written document made with fatty ink is pressed onto a sensitising surface impregnated with solid chemical reagent whereby the reagent migrates partially to the document, the latter is removed from the sensitising surface and pressed onto a receiving surface containing reagents which form a latent or visible image with the solid chemical reagent retained by the document. In Example 1 such printed or written document, as an original, is pressed for six minutes onto writing paper impregnated with alcoholic catechol and then pressed for fifteen minutes onto transparent paper treated with ferric chloride, to produce a positive copy of brown lines on a yellow background. The ferric chloride may be replaced by ferric chlorate, cupric chloride or chlorate, or potassium ferrocyanide with alkaline nitrite, to give different colours. In Example 2 the original is pressed for two hours onto paper impregnated with ammonium sulphocyanate and then pressed for thirty minutes onto paper treated with ferric chloride, or this with certain pyrazolones. The pairs of reagents for other examples, that of the sensitising surface being stated first, are Example 3 resorcinol and diazotized aminonaphthol sulphonic acid, with a final ammonia vapour treatment to induce coupling; Example 4 resorcinol and diazotised sulphanilic acid, Example 5 resorcinol and aniline diazo sulphite with a final exposure to the action of light, and Example 6 1- phenyl-2-methyl-5-pyrazelone and the diazo compound of Example 3, with ammonia coupling. The examples include variations and alternative procedures.
Patent GB-1005123-A (GB)
Title: Improvements relating to vacuum switches
Inventor: KENNEDY ERNEST
IPC: H01H33/662
Filed: 1963-05-15
Abstract: 1,005,123. Vacuum switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 7, 1964 [May 15, 1963], No. 19365/63. Heading H2B. The shield 9 of a vacuum switch is supported in place by a metal spider (Fig. 1) having three legs 1, 2, 3 each with a foot 5 which is secured at both ends to the envelope 7 by glass welds 6, the other ends of the legs 1, 2, 3 being welded at 11 to the shield 9.
Patent GB-896188-A (GB)
Title: Improvements relating to apparatus for observing or controlling the dimensions of welded tubes
IPC: B23K37/053
Filed: 1960-06-01
Abstract: 896,188. Making helically-wound tubes. HOESCH A.G. June 1, 1960 [June 10, 1959], No. 19402/60. Class 83 (2). [Also in Group XIX] In apparatus for observing or controlling the dimensions of welded tubes coming from a welding machine, a flexible band is wrapped around at least a considerable part of the periphery of the tube to bear against it substantially without friction and is secured against displacement in the axial direction of the tube, one end is fixed and the other end is subject to a tensile force acting tangentially to the tube periphery and is connected to a device for indicating or recording its tangential movements or for controlling the welding machine in accordance with these movements. A metal strip is bent into a tube in a sleeve 1 and then welded and a chain 4 is wrapped once around the tube emerging from the sleeve, one end 5 being connected to a piston 6 spring- pressed towards the tube and the other end carrying a weight 10 by means of a strap 8 and rack 9 engaging a pinion 17 carrying a pointer 18. Alternate links of the chain carry blocks 19 forming bearings for balls 20 bearing against the tube and hooks 21 on the sleeve prevent the chain moving axially with the tube. The band may be wrapped several times round the tube and a spring may be used instead of the weight 10. Any alteration in diameter of the tube emerging from the sleeve is indicated by the pointer and the operator regulates the welding machine, or the moving end of the chain may be coupled to an automatic regulator for the welding machine. Helically-wound tubes are referred to.
Patent GB-1216922-A (GB)
Title: Improvements in or relating to milling machines
Inventor: ROGERS STANLEY ARTHUR
IPC: B23Q5/22
Filed: 1968-04-24
Abstract: 1,216,922. Milling machines. ELLIOTT MACHINE TOOLS Ltd. 22 April, 1969 [24 April, 1968], No. 19402/68. Heading B3K. [Also in Division F2] In a milling machine having a knee K, a saddle S and table T, providing the latter with capability of movement in three mutually perpendicular directions, gearing for applying feed drive to shafts VS, CS and LS for vertical, cross or longitudinal feed of the table is carried by only four shafts VD, C and L and is normally driven from motor M and shaft O through worm gearing D1. Change speed gear train D2, C1, L1 provides for nine different speeds and provides for continuous drive of shaft LS whenever the feed gearing is operative. Sliding dog clutch L2 is engageable alternatively with gears L3 and L4 to reverse the drive to gear sleeve D3, D4 slidably mounted on which is a selector gear D5 which meshes alternatively with gear C3 or V2 to provide cross or vertical feed. Motor M is reversible and connected, Fig. 5, to shafts D and L through respective one-way clutches D11, L51, the normal feed drive being through clutch D11 to shaft D and through the reduction gearing to shaft L. When the motor rotates in the reverse direction however shaft L is driven directly for rapid traverse of the table T, the shaft D and reduction gearing being by-passed. The machine also includes a trip mechanism for automatically stopping the table in two directions of movement, the mechanism including a manually operable bar 2, Fig. 3, axial movement of which shifts the selector gear D5 to determine whether feed is in the cross or vertical direction or to place the selector gear in a neutral position, while angular movement of the bar 2 determines the direction of feed by means of a lever 11 adapted to control the sliding dog clutch L2. Trip bars 10, 19 for vertical and cross traverse movement carry stop collars 18 engageable by dogs on the machine, only one of these bars being operably connected to the bar 2 at a time. A gate 4 for handle 3 controls the angular and axial positions of shaft 2 determining the axis and direction in which movement is to take place.
Patent GB-154864-A (GB)
Title: Improvements in and relating to paper fasteners
IPC: B42F13/08
Filed: 1919-09-24
Abstract: 154,864. Thompson, W. P., (Klein, F. J.). Sept. 24, 1919. Flexible-band files.-In a paper-fastener of the type in which two flexible metal tongues are secured to the end portions of a base member, the tongue members are provided with one or more stamped-out lugs to engage with a band or bar near each end of the base. The base member 1 has parallel ridges 3 forming a groove 4 and connected near each end by a band 5. The tongue members 2 are inserted in the groove 4 and secured to the base by a stamped-out lug or lugs 7 engaging the band 5.
Patent GB-921355-A (GB)
Title: By-pass die for clinching staples and method of making same
IPC: B23P15/24
Filed: 1961-05-30
Abstract: 921,355. Stapling. BOSTITCH Inc. May 30, 1961 [June 1, 1960; May 23, 1961], No. 19437/61. Class 89 (3). [Also in Group XXII] The die of a stapling machine has channels 28, 30, Fig. 1, which are formed in the opposite walls and curved base of a U-shaped slot 22 in the die so that the two legs of a staple may enter the opposite straight portion of the channels and be bent towards each other as they are forced into the curved base portion for the purpose of closing the gathered neck of a bag. A die formed of two parts 50, Figs. 10 and 12, has a channel 54 extending down the face 52 and around the curved end portion of each part.
Patent GB-530897-A (GB)
Title: Improvements in or relating to setting means for thermostats
IPC: G05D23/12
Filed: 1939-07-05
Abstract: 530,897. Thermally-actuated valves. THORP & CO., Ltd., T., and MILEY, A. July 5, 1939, No. 19549. [Class 135] [Also in Group XXXVII] A thermostat (not shown) is adjusted by means of a spindle a carrying a drum b with a cylindrical portion d bearing indications corresponding to various settings which are brought into register with a stationary pointer e. A cylindrical extension g of a fixed part f is provided with spaced holes h to receive a spring-pressed plunger i carried by the drum b, to lock the drum in position. The plunger is withdrawn by a knob k and held by the engagement of a cross-pin in a notched bush m.
Patent GB-591407-A (GB)
Title: Apparatus for controlling draft, particularly in the smoke boxes of locomotives
IPC: F23L17/00
Filed: 1944-10-11
Abstract: 591,407. Regulating draught. McINTOSH, R. R. Oct. 11, 1944, No. 19583. Convention date, Sept. 21, 1943. [Class 51 (i)] [Also in Group XXIX] In a locomotive smoke box the suction pressure is controlled by regulating the pressure in the exhaust pipe from the cylinders of the locomotive to a prescribed upper level below that to which it would normally rise and by admitting a suction reducing gaseous fluid such as air in controlled amount to the smoke box when the suction pressure therein exceeds a predetermined level. As shown in Fig. 3, the exhaust from the engine cylinders enters an expansion chamber 24 leading to the blast pipe 15 provided with an auxiliary steam jet blower pipe at 18 and surrounded by chambers 6, 7 provided with gravity actuated valves 11 which open when the pressure in the expansion chamber reaches a predetermined level to pass steam directly to the atmosphere through pipes 22, Fig. 2. Steam may also pass from the expansion chamber 24 through a pipe 52 and open a gravity valve in a chamber 68 when the pressure reaches a predetermined level and escape to the atmosphere by way of the pipes 80, 22. Air is admitted to the smoke box through a transverse conduit 3, provided with end closure doors and a disc valve 33 which opens to admit air to the smoke box to reduce the suction pressure, the top of the valve being loaded by steam pressure led from the expansion chamber 24 to the top of the piston 41, Fig. 6, in the cylinder 38, the piston being connected by a rod 32 to the disc valve 33. Specifications 555,737, 575,412 and 578,378 are referred to.
Patent GB-766372-A (GB)
Title: Improvements in or relating to the production of gamma benzene hexachloride
IPC: C07C17/38
Filed: 1954-07-05
Abstract: Gamma benzene hexachloride is separated from mixtures containing the isomers by treating the crude change with solvent which is saturated with other components, from the crystallization stage, at 25-55 DEG C., until it is saturated with the gamma isomer, separating the undissolved portion, crystallizing by cooling, while maintaining a 5-20 DEG  C. temperature differential between the extraction and crystallization stages, warming and recirculating in a closed cycle. Drawings accompany the Specification, showing flow plans for two methods of procedure. Examples are given in which crude mixtures are treated with perchloroethylene, carbon tetrachloride, benzene, and trichlorobenzenes, re-cycle mixtures saturated with components other than the gamma, and the filtrates crystallized to produce by cooling, the gamma isomer.
Patent GB-860337-A (GB)
Title: Improvements in polyvinyl alcohol shaped articles
Inventor: OSUGI TETSURO
IPC: D06P3/58
Filed: 1959-06-09
Abstract: Oriented polyvinyl alcohol shaped articles such as fibres, bristles, tubes and rods, having improved dyeability comprise at least 30% by weight of units of vinyl alcohol or acetalized vinyl alcohol and having substantially uniformly distributed therein molecules of an N-vinyl amide group containing water-soluble polymer prepared by polymerizing an N-vinyl amide group containing monomer, the nitrogen content of said shaped article being in the range of 0.1 to 5% by weight all weight percentages being calculated to the basis of nonacetalized vinyl alcohol units. The polyvinyl alcohol preferably has a degree of polymerization in the range 1,000-3,000.  The watersoluble polymeric amides may be derived from N-vinyl pyrrolidone; 1-vinyl-5-methyl-2-pyrrolidone; 1 - vinyl - 4 - ethyl - 2 - pyrrolidone; 1 - vinyl - 5 - ethyl - 2 - pyrrolidone; N - vinyl caprolactam; N-vinyl valerolactam; N-vinyl acetamide; or N-vinyl butyramide.  These amides may be copolymerized with vinyl acetate, vinyl propionate, acrylonitrile, acrylic acid, methyl acrylate, methacrylamide, maleic anhydride, styrene, vinyl chloride, vinyl methyl ketone, or vinyl methyl ether.  After the article has been formed from the aqueous spinning solution insolubilization can be effected by the use of formaldehyde, chloroacetaldehyde, butyl aldehyde, benzaldehyde, glyoxal, terephthalic aldehyde, or with titanium sulphate or a chromate.  The spinning solution may be extruded into air or nitrogen at a temperature of 50-180 DEG  C. in dry-spinning techniques or into a concentrated aqueous solution of sodium sulphate or ammonium sulphate at a temperature of 25-60 DEG C. in wet-spinning processes.  The filaments may then be stretched to a draw ratio of 2 : 1 to 12 : 1 and then treated in air at 210-250 DEG  C. for 2 seconds to 5 minutes to give a wet-softening temperature higher than 60 DEG  C. and then acetalized to the extent of 5-60% of the polyvinyl alcohol hydroxyl groups.
Patent GB-357276-A (GB)
Title: Improved manufacture of transparent phenol-formaldehyde condensation products
IPC: C08G8/28
Filed: 1930-06-28
Abstract: Phenol-formaldehyde condensation products which are glass-clear and transparent are made by condensing a phenol (1 mol.) and formaldehyde (1 1/2 mols.) in a solution which is sufficiently alkaline for the resin to remain in solution during the condensation, slightly acidifying, distilling, and hardening, only such bases and acids being used as form gel-soluble salts. After the condensation small quantities of formaldehyde are added before, during, or after distillation in order to clarify the end product.  In an example, phenol is condensed with formaldehyde in presence of potash lye, lactic acid added, and the whole distilled in a vacuum.  After half the water has distilled some formaldehyde is added and the distillation continued.  The thickened product is filled into moulds and hardened.  Specifications 267,901 and 290,963, [both in Class 2 (iii), Dyes &c.), are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of formaldehyde up to 2,5 molecular proportions without subsequent additions.  In examples, phenol is condensed with formaldehyde in presence of potash lye, acidified with phthalic acid or a mixture of phthalic and lactic acids, evaporated in a vacuum, and hardened. This subject-matter does not occur in the Specification as accepted.