baber/WOPTO huggingface dataset:
Patent GB-795980-A (GB)
Title: Method of de-oxidizing oxidized cobalt-nickel-iron alloy surfaces
IPC: C23G1/08
Filed: 1955-11-29
Abstract: Oxide is removed from the surface of oxidized Co-Ni-Fe alloys by immersion in a hot bath consisting, apart from minor amounts of scavengers, activators, and inhibitors, of ammonium sulphate in aqueous sulphuric acid, the concentration of the ammonium sulphate being at least 75 gm. per 100 ml. of aqueous acid.  The acid concentration is preferably 15-30 per cent by volume of 66 DEG Beaum<\>ae H2SO4; the temperature is at least 50 DEG C. and preferably 90 DEG  ta 100 DEG C.; also the solution may be saturated with ammonium sulphate, the latter apparently acting as an inhibitor Alloys particularly concerned contain 5 to 25 per cent Co, 24 to 34 per cent Ni and the balance Fe apart from e.g. Mn below 1 per cent. The treatment is said to be especially useful in respect of Co-Ni-Fe alloy parts of electrical or electronic apparatus (e.g. diode pins) which have been oxidized, for example by heating to 750 DEG C. or thereabouts in a water vapour atmosphere, in order that glass may be sealed thereto; the exposed parts of the pins being subsequently treated to remove the oxide coating. The treated alloy may be vapour-, chemical-, or electro plated.
Patent GB-182427-A (GB)
Title: Improvements in actions for typewriting machines
IPC: B41J7/02
Filed: 1921-12-19
Abstract: 182,427. Royal Typewriter Co., Inc., (Assignees of Hess, E. B.). July 1, 1921, [Convention date]. Type-lever actions.-To reduce noise, full depression of the keys is arranged to move the type-levers into proximity to the platen, and the stroke of the type-levers is then completed by momentum. The invention is shown in Fig. 3 as applied to an action in which the key-lever L is connected by a link T to a lever Q connected by an horizontal link S to the heel g of a typelever G, the linkage imparting an accelerated movement to the type-lever. The line S is now connected to the heel g at a point x normally in the vertical plane of the pivot-wire d, full depression of the key-lever carrying the parts to the position shown in dotted lines, in which position the link S is on the dead-centre in relation to the type-lever, the pivotal connections y, x being in alignment with the pivot-wire d. Thereafter, the type-lever moves to impression by momentum, and the key-lever is cushioned by rising to the position shown in full lines. Positive stops for the key-levers and type-levers are dispensed with. Weak returning-springs J are connected to the type-levers, and auxiliary returning-springs P are connected to the key-levers L or other parts. Keys.-The springs J, P are connected to supports K, N which are adjustable to vary the touch.
Patent GB-1128439-A (GB)
Title: Improvements in and relating to methods of manufacturing semiconductor device containers
Inventor: COOMBES CHRISTOPHER ROBERT
IPC: H01L29/00
Filed: 1967-07-25
Abstract: 1,128,439. Glass to metal seals; polishing glassware. ASSOCIATED SEMI-CONDUCTOR MFRS. Ltd. 25 July, 1967, No. 34170/67. Heading C1M. [Also in Division H1] A glass window 10 is formed at one end of an open-ended metal cylinder 5, which is to contain a semi-conductor device such as a photo-diode or photo-transistor, by placing a quantity of glass, e.g a preform of KODIAL to match the N-Fe-Co alloy of cylinder 5, inside the cylinder 5 and heating it in a jig 1, 2 in an atmopshere of N 2  to mould the outer surface 11 of the window 10 and to seal the cylinder end hermetically. The coded container 5, 10 is removed from the jig 1, 2 and heated in an N 2 /H 2  atmosphere to between the softening point and working point of the glass; i.e. glass viscosity between 10<SP>7.6</SP> and 10<SP>4</SP> poise; so that the external glass surface 11 is "thermally polished ", e.g. to form a lens, due to the flowing out of surface irregularities. Prior to placement in the jig 1, 2 the cylinder 5 may be degreased and decarbonized in a N 2 /H 2  atmosphere at 1100‹ C., and the glass preform may be etched in HF. During the moulding stage the glass may be subjected to pressure by a graphite weight 9. The jig 1, 2 may comprise many sites such as that shown, whereby a number of containers 5, 10 may be formed simultaneously. The jig travels through a furnace in an atmosphere of N 2 , there being three zones within the furnace having temperatures of 860‹ C., 960‹ C. and 1030‹ C. respectively. After cooling the containers are cleared by tumbling in methylated spirits and etching in H.F. in an ultrasonic agitation bath, and thermal polishing is carried out at 850‹ C. in an atmosphere of N 3  and H 2 . The cylinder 5, which may be of Ni/Fe/Co alloy, may finally be electroplated with Ni and sealed on to a header carrying the semi-conductor device.
Patent GB-740601-A (GB)
Title: Improvements relating to card filing devices
Inventor: DAVIES HERBERT VAUGHAN
IPC: B42F17/28
Filed: 1953-12-09
Abstract: 740,601. Filing papers. MANIFOLDIA, Ltd. Nov. 25, 1954 [Dec. 9, 1953], No. 34209/53. Class 146(1) A rotary filing device comprising a carrier such as a rotatable drum or endless band on which cards are carried past a viewing station at which they tend to open as by gravity, comprises also an auxiliary carrier moving in the same path as the main carrier and being relatively movable with respect thereto, having a number of spacer elements mounted in spaced relationship so as to be distributed throughout the cards and being mounted to remain in a plane substantially at rightangles to the direction of movement of the cards. The filing device shown is as described and claimed in Specification 720,275 with cards held on a drum 13 rotating about a horizontal spindle 14 in a container 10 having an opening for viewing adjacent the top and a hand wheel 12 for rotating the drum. The cards are held. between two extensible flexible elements 15, the cards and elements 15 engaging guide rails 16 on the drum 13. A spool 18 is loosely mounted on the spindle 14 and has end flanges 19 with radial holes to take lugs on plate spacer elements, or, as shown, the ends of open wire frame spacer elements 20, each element 20 having radial legs 21 bent at their ends 22 to U-form, so that with the ends engaging holes in the flanges 19, the other leg of the U projects over the periphery of the flange and acts to limit the angular movement of the spacer element. As shown in Fig. 4, four elements 23 are each provided with a secondary element 24 similarly adjacently mounted and a spring 25 is disposed between the elements 23, 24 to urge them apart to assist opening of the cards at the viewing station, or, in the case of large cards, to limit the opening. Specification 730,695 also is referred to.
Patent GB-917390-A (GB)
Title: Improvements relating to railway vehicle vacuum braking apparatus
IPC: B60T13/46
Filed: 1959-10-09
Abstract: 917,390. Vacuum brakes. GRESHAM & CRAVEN Ltd., and MARCH, G. C. Sept. 30, 1960 [Oct. 9, 1959], No. 34259/59. Class 103 (1). In railway vehicle vacuum-braking apparatus in which the degree of vacuum in a reservoir 13 is reproduced in a train pipe 11 by means of a relay valve 14, a driver's brake valve 12 has a range of adjustment in which it varies the flow capacity of a leak path from the reservoir whilst maintaining communication between the reservoir and an exhauster 15 whereby inflow and outflow from the reservoir are balanced at a degree of vacuum determined by the setting of the driver's valve 12. For this purpose a handle 34 of the driver's valve 12 turns a disc 36, Fig. 2, having a tapered port 37 or series of ports, thereby selectively venting the reservoir to an atmospheric chamber 40. An emergency position beyond the normal range registers larger ports 41, 38 for rapid venting of the train pipe, and a covered port 42 connects the reservoir to a train pipe through ports 38, 38a. Operation of the driver's valve 12 also operates a switch 35, energizing a valve 16 which cuts off communication between the train pipe and the exhauster 15. During brake operation, as the vacuum falls in reservoir 13, a diaphragm 23 of the relay valve 14 rises to admit atmosphere which decreases the vacuum in the train pipe through a port 28 in accordance with the selected reservoir vacuum.
Patent GB-929122-A (GB)
Title: Improvements in or relating to echo sounding apparatus
IPC: G01S15/96
Filed: 1959-10-09
Abstract: 929,122. Echo sounders. ELECTROACUSTIC G.m.b.H. Oct. 9, 1959 [Nov. 11, 1958], No. 34299/59. Class 40 (7). In an echo sounder displaying non-demodulated pulse echoes on a cathode-ray tube (C.R.T.) two spaced receiving transducers are employed, the output of the first receiving transducer causes deflection-modulation of a range timebase and the output of the second transducer, after a 90 degrees phase change, is utilized to intensity-modulate the C.R.T. beam. Reflecting objects immediately below the ship are thereby displayed on the time-base line but objects to port or starboard are displayed on the corresponding side of that line, Figs. 4 and 5 (neither shown). Sawtooth generator 6, synchronized with pulsed transmitter 4, provides the range time-base of C.R.T. 12. The output of receiving transducer 2 is passed to C.R.T. X-plates 14. The C.R.T. beam is normally suppressed wholly or partially. Receiving transducer 3 output is phase-shifted by 90 degrees in pulse transformer 10 and is then applied to intensitymodulate the C.R.T. beam. By utilizing the invention, operations in which the trawler is to be positioned directly above a shoal of fish are expedited. To facilitate the reading of direction the two halves of the C.R.T. screen separated by the zero line are of different colours.
Patent GB-861796-A (GB)
Title: New epoxy resin compositions
Inventor: PETERSON LOWELL EUGENE
IPC: C08G59/50
Filed: 1958-10-27
Abstract: Epoxy resins are hardened by the addition of a diimidazoline of the formula <FORM:0861796/IV (a)/1> where R1, R2, R3 and R4 are H or C1-5 alkyl groups, k is an integer from 1-5, and A is a direct link or a straight chain hydrocarbon radical.  Epoxy resins specified are the reaction products of polyhydric phenols with polyfunctional halohydrins (e.g. epichlorohydrin) and/or glycerol dichlorohydrin and are complex glycidyl ethers containing at least one terminal epoxy group per molecule; polyhydric phenols specified are resorcinol and the dihydric phenols obtained from the condensation of phenol with formaldehyde, acetaldehyde, acetone or methyl ethyl ketone (e.g. bisphenol A). The diimidazolines are preferably prepared (see Group IV (b)) from appropriate aliphatic dicarboxylic acids (e.g. maleic acid, alkylene dicarboxylic acids or acids of the formula HOOC.(CH2)g.COOH, where g is a whole number from 0-11) and aliphatic polyamines of the formula H2N.(CR1R2-CR3R3-NH)kH (e.g. ethylene diamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine, di-1,2-propane triamines or mixtures thereof).  Examples are given.  Uses.-Glass cloth laminates; electrical imbedment; heat-resistant coatings; adhesives; casting.ALSO:Diimidazolines of the formula <FORM:0861796/IV (b)/1> where R1, R2, R3 and R4 are H or C1-5 alkyl groups, k is an integer from 1-5, and A is a direct link or a straight chain hydrocarbon radical, may be prepared by reacting appropriate aliphatic dicarboxylic acids (e.g. maleic, alkylene dicarboxylic, or acids of the formula HOOC.(CH2)g.COOH, where g is a whole number from 0-11) with aliphatic polyamines of the formula: H2N(CR1R2-CR3R4-NH)kH (e.g. ethylene diamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine, di-1,2-propane triamines or mixtures thereof). The diimidazolines are used for hardening epoxy resins (see Group IV (a)).  In the examples the acid is added slowly to the amine over a period of 3-6 hours reaching the maximum temperature specified.  Diethylene triamine is reacted with the following acids: (1) adipic 243 DEG C.; (2) azelaic 260 DEG C.; (3) sebacic 250 DEG C.; (5) maleic 192 DEG C.; and (6) oxalic dihydrate in two stages: (a) to 160 DEG C. in 1 1/2 hours; (b) to 208 DEG  C. in a further 3 hours.  In Example (4) triethylene tetramine is reacted with adipic acid up to 275 DEG C.
Patent GB-760717-A (GB)
Title: Improvements relating to submersible electric motors
Inventor: PENLINGTON THOMAS EDWARD
IPC: H02K5/128
Filed: 1953-12-10
Abstract: 760,717. Electric motors. BERESFORD & SON, Ltd., J. Feb. 23, 1955 [Dec. 10, 1953], No. 34364/53. Class 35. In a submersible motor with a metallic liner sealing the stator from the rotor, plastic material bonds the liner to the stator and fills the otherwise vacant spaces about the windings and the leads thereto. As shown, the plastic material is bonded both to the metal casing 10 and the metal liner 12 as well as end rings 16 and one section of a plug and socket may be embedded in the plastic. The stator core may be constructed as in Specification 702,499.
Patent GB-934084-A (GB)
Title: Convertible furniture
IPC: A47C17/20
Filed: 1961-09-26
Abstract: 934,084. Bed-settees. J. GRANDE. Sept. 26, 1961 [June 20, 1961], No. 34426/61. Class 52 (2). A bed-settee comprises a seat 30 pivoted to the forward end of a stand 1 and a spring mattress frame comprising four elements 3, 4, 5, 6 hinged together so that the element at the bed head can pivot about a horizontal axis 7 at the rearward end of the stand 1 to form a support for the back of the settee while the other elements 4, 5, 6 are folded in a U-shape beneath the seat. A member 25 is pivoted to the element 3 so that it can form a head board in the position illustrated or be rotated about a pivot 26 to form the back of the settee. In the settee position the legs 24 on the seat 30 are tucked behind the back 25.
Patent GB-798332-A (GB)
Title: Improvements in hard refractory compositions
Filed: 1955-12-01
Abstract: A sintered composition comprises aluminium, titanium and oxygen in such proportion that the atomic ratio Al : Ti is between 0,8 and 20 and <FORM:0798332/V/1> is between. is between 0,25 and 1,4.  When up to 60 per cent of chromium is present the ratios are 0,8-5,0 and 0,6-1,3. The compositions can be prepared by heating in hydrogen aluminium and titania with the possible addition of alumina or titanium as necessary.  Specification 768,532 [Group II] is referred to.
Patent GB-1155785-A (GB)
Title: Improvements in or relating to a process for the Manufacture of Carpets and a Composition for use therewith
Inventor: FULLER JAMES STEWART
IPC: C09J123/08
Filed: 1966-08-01
Abstract: 1,155,785. Coated carpets. BORDEN CHEMICAL CO. (U.K.) Ltd. 24 July, 1967 [1 Aug.; 1966], No. 34487/66. Heading B2E. [Also in Divisions C3 and C5] A process for backing carpets comprises applying to the back face of a carpet web a molten composition comprising an ethylene/ vinyl acetate copolymer containing 17. to 29 weight per cent of vinyl acetate, a hydrogenated or partially hydrogenated rosin ester and a wax. The coating may be applied by reverse roll, optionally controlled by a doctor blade or applicator roll, or by curtain coating. Preferably the coated web is passed over a counter-rotating heated roller to remelt the adhesive and increase penetration. The com positions may also contain fillers and antioxidants. In examples carpet webs are reverse roll coated with compositions comprising copolymer, glyceryl ester of fully or partially hydrogenated wood rosin, paraffin or microcrystalline wax, whiting and butylated hydroxytoluene or an alkyl aryl phosphite.
Patent GB-1102750-A (GB)
Title: Device for sensing the availability of a charge within a compressed gas cartridge
IPC: B63C9/19
Filed: 1965-08-13
Abstract: 1,102,750. Compressed gas container discharge devices. J. L. HEARRELL, and F. SEGREST. 13 Aug., 1965 [18 Aug., 1964], No. 34712/65. Heading F4P. On pulling a cord 18, Fig. 7, to pivot a lever 21 about a pin 56, thereby lifting a needle 53 against a spring 55 to puncture a disc 41 sealing the end of a carbon dioxide cylinder 37 secured into a housing 19, the released gas is retained within the housing by a sealing ring 51 surrounding the needle 53 and by a diaphragm 106 covering the inner end of a hollow plug 27 screwed into housing 19 and connected by transverse channel 46 to the needle 53 and the gas pressure so maintained is used to indicate that it is available on puncturing the diaphragm 106 by a lever-operated needle 118, Fig. 13, within a bore 29 housing a lateral discharge orifice 124 connected by a union 12 to the inflatable object, e.g. a life preserver. The lever 75 for operating needle 118 is actuated either manually by a pull cord 17 or automatically when a spring-pressed plunger bearing against a cam surface 80 of the lever is released by the dissolving of a pellet 90, Fig. 8, projecting through a slot 91 in the housing wall and into the annular space between positions 83, 84 of the plunger. The existance of gas pressure after piercing disc 41 and before piercing diaphragm 106 may be indicated by a conventional gauge, a button protruding from the housing or by again pulling cord 18 whioh if normal gas pressure is available would not result in movement of lever 21.
Patent GB-429355-A (GB)
Title: Improvements relating to thermostatically controlled radiator shutters as used on motor vehicles
IPC: F01P7/12
Filed: 1933-11-30
Abstract: 429,355. Radiators for motor vehicles. LUCAS, Ltd., J., and PURDEN, R. H., Great King Street, Birmingham. Nov. 30, 1933, No. 34903/32. [Class 29] Relatively movable rods or the like interposed between a thermostatic device c and the actuating bar b of radiator shutters f normally controlled by the thermostat are moved into the operative position by fluid operated means dependent on the motion of the engine, for example a plunger l in a cylinder o connected by a pipe r to the engine induction pipe, and held in the operative position by an electromagnet p, q controlled by a manual switch m. When the engine stops the bars are held in the operative position so long as the switch is closed, and are moved by a spring n to the inoperative position when the switch is opened, the shutters being then closed by their spring i. In another arrangement the cylinder is carried by a slidable bar and moves over a plunger on the actuating bar of the shutters. The oil pressure of the engine may be utilized in place of the engine suction.
Patent GB-1409205-A (GB)
Title: Noise absorption device
IPC: G10K11/16
Filed: 1973-07-23
Abstract: 1409205 Sound insulation H YAZAKI 23 July 1973 35042/73 Heading F2X A noise absorption device for absorbing noise which is generated by a moving metal machine part, or transmitted from the moving machine part through a stationary metal machine part, comprises at least one absorption unit which includes a soft metal, e.g. lead, absorption element 1 sandwiched between the machine part and a non-metal resilient antinoise transmission element 3, formed, e.g. of natural or synthetic rubber, with a cup-shaped cover 4 covering the end face and the periphery of the non-metal element 3 and a portion of the periphery of the soft metal element 1, and a fastening means extending through both elements 1, 3 and the cover 4 to fixedly secure the unit to the adjacent surface 2 of the machine part. In the embodiment shown in Fig. 3, the elements 1, 3 are disc-shaped and the units are mounted in pairs around the web of a gear-wheel A, the units of each pair being on opposite sides of the web and connected by means of a bolt 6 and nuts 7. Where the units are to be connected to the external curved face of a machine part B (Fig. 7), the soft metal element is formed with a mating concaved conical or arcuate contact surface as is the element 10 (Fig. 5, not shown) or the element 20 (Fig. 6, not shown). For connection to the internal curved surface of the machine part B (Fig. 8, not shown), the soft metal elements are formed with corresponding convexed contact surfaces. In Figs. 9, 10 and 11 (not shown), the noise absorption units are secured to the shank and head of a machine tool hammer, the gear-box of a transmission gear, and the cover of an engine, respectively.
Patent GB-460271-A (GB)
Title: Improvements in or relating to roentgen-ray tubes
IPC: H01J35/10
Filed: 1935-05-20
Abstract: 460,271. R÷ntgen-ray tubes. AJKAY, F. R., and BITTERA, J. May 20, 1935, No. 35081/36. Divided out of 460,181, under which a Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 20, 1935. [Class 39 (i)] In a R÷ntgen-ray tube of the kind in which the anticathode is set into rotation by the impingement of the electron stream, a magnetic field is provided which brakes the angular velocity of the anticathode. In the form shown, a cathode b within a focusing shield directs an electron stream nearly tangentially to the circumference of a wheel-shaped anticathode c, rotating in bearings on a spindle d. A magnet e acts as a brake on the anticathode itself or on a disc of copper mounted on the spindle. The braking effect may be controlled by moving the magnet or by varying the current through an electromagnet. Specification 21389/14, [Class 39 (i)], is referred to.
Patent GB-319992-A (GB)
Title: Improvements in or relating to intermittent toothed gearing
IPC: F16H27/06
Filed: 1928-11-29
Abstract: 319,992. Fairweather, W., (Singer Manufacturing Co.). Nov. 29, 1928. Intermittent toothed gearing.-A toothed wheel 9 driven intermittently by a crank pin 6 on the end of a constantly rotating shaft 4 is locked during stationary periods by engagement with grooves 11 in the face thereof of a rib 14 on a collar 13 secured to a countershaft 12 connected to the driving-shaft by bevel gearing 15, 16. The shafts are mounted in a frame 3, 3<1>, which is provided with attachment brackets 2 and which may carry further transmission gearing 17.
Patent GB-167995-A (GB)
Title: Improvements in or relating to mechanical stokers
IPC: F23H11/00
Filed: 1920-12-15
Abstract: 167,995. Wade, H., (Harrington, J.). Dec. 15, 1920. Grates.-In a chain-grate stoker the use of a rear sprocket shaft is obviated and means are provided for taking up slack in the chains. The grate-bars 10 are mounted on a series of parallel chains 10<a> having central rollers 21 running on tracks 21<a> extending the whole length of the upper strands. The pins 21<b> connecting the chain links carry rollers 21<c>, which, at the rear end of the stoker, run on flanges 51<a> on an end girder 51. The lower strands form pendant sections, and are then guided into lower channels 53 by pivoted shoes 52, the weight of which, with that of the pendant sections, takes up slack in the upper strands.
Patent GB-1270584-A (GB)
Title: Sterilized package
Inventor: BENSON RONALD L
IPC: A61B19/02
Filed: 1969-07-14
Abstract: 1,270,584. Coated products. LITTON BUSINESS SYSTEMS Inc. and BECTON DICKINSON & CO. 14 July, 1969 [16 July, 1968], No. 35408/69. Heading B2E. [Also in Divisions B8 and D2] A sheet of material is coated on one surface with a thermosetting resin not more than 90% cured and having -CH 2 OH groups capable of releasing free formaldehyde on heating and/or aging. The amount of free hydrogen ions or hydroxyl ions available for creating an acidic or basic atmosphere in the region of the sheet is such that the sheet could be said to have a pH in the range of 4 to 9. The sheet of material may also be coated on the other surface with a vapour transmission proof coating. The coating of resins such as phenol-formaldehyde, urea-formaldehyde, and melamine-formaldehyde may be achieved by reverse roll, wire rod or air knife coating operations. The vapour transmission proof coating may comprise resins such as polyethylene, polypropylene and polyvinylidene chloride or alternatively a hot melt coating of a high molecular weight ethylenevinyl acetate copolymer combined with petroleum waxes.