baber/WOPTO huggingface dataset:
Patent GB-944731-A (GB)
Title: Dialdehyde polysaccharide-amino triazine resin dispersions
IPC: C08B31/18
Filed: 1961-06-09
Abstract: An aqueous dispersion of a curable resin is produced by reacting a dialdehyde polysaccharide with an amino triazine in an aqueous medium at a pH of 5.5-7.0 and a temperature of 60-80 DEG C. 0.1-0.25 mole of amino triazine per mole of polymer is preferably employed.  The dialdehyde polysaccharide may be derived from maize, wheat, or potato starch, cellulose, dextran, algin, or inulin. 50-100% of the anhydroglucose units may be oxidised. A number of triazines, including melamine, diallylmelamine, and phenylguanamine, are specified.  The amino triazine may be used as a water-soluble salt. One reactant may be added as a solid to a solution of the other, or both reactants may be added as solids to an aqueous medium.  The pH may be maintained by the presence of a buffer salt in a concentration of 0.1-0.3N, a dialdehyde polysaccharide-bisulphite addition product in a concentration of 20-40% of the dialdehyde polysaccharide, or sodium bisulphite in a concentration of 5-10% of the dialdehyde polysaccharide.  The resulting dispersion may be stabilized by adjusting its pH to a value of 6.0-6.5 by the addition of di- or tri-ethanolamine in a concentration of 0.5-2.0% of the solids in the dispersion. Gelling may be effected by acidifying to a pH of 1-6 and standing at room temperature for 1-12 hrs. or at 50-90 DEG C. for 1-5 mins. The dispersion may form a coated film by curing at 60-90 DEG C. for 30-90 mins. in the presence of acid or by solvent exchange with methanol, ethanol, or isopropanol. Specification 886,983 is referred to.ALSO:A gelled aqueous dispersion of a dialdehyde polysaccharide-amino triazine reaction product (see Division C3) is coated on to paper to form a washable wallpaper.  Specification 886,983 is referred to.ALSO:Wet-strength paper is produced by the use of an aqueous dispersion of a dialdehyde polysaccharide-amino triazine reaction product (see Division C3) by tub sizing or size press, or as a beater additive.  Paper may be treated with a 1-20% dispersion, which has been acidified to a pH of 4-6, and cured at 80-100 DEG C. for 10-30 mins.  Treatment with acid may be effected after tub sizing.  A 1-5% dispersion may be added to the beater, chest, Jordan discharge line, screen, or head box after acidification to a pH of 4-5 an ageing at 40-50 DEG C. for 1 hr.  Acids specified are formic, acetic, propionic, lactic, citric, hydrochloric and phosphoric acid, and aluminium sulphate.  Specification 886,983 is referred to.
Patent GB-751311-A (GB)
Title: A metal fastening device for the loop ends of wrist watch straps
IPC: A44C5/16
Filed: 1954-07-20
Abstract: 751,311. Wrist-watch straps. LANG, H. July 20, 1954 [July 27, 1953], No. 21080/54. Class 43. A device for fastening the end of a non- metallic strap looped over the connecting bar of a wrist watch comprises a base-plate 1 disposed beneath a turned-over end-piece 5 of the upper layer 2 of the strap 7 and at least one tongue 3 passing through the end-piece 5 and turned thereover to secure the plate thereto and at least one tongue 4, preferably hook-shaped, at right-angles to the tongue 3 and which after passing through the piece 5, e.g. at about 2 mm. in front of the fold crease, is bent to lie over the piece 5, as shown in Fig. 5, and, on formation of the loop, Fig. 5, is passed through a slit 6, Fig. 4, in the bottom layer 7 of the strap to effect the loop fastening. The head of the tongue 4 is anchor or arrow-head shaped to prevent it sliding out of the slit 6.
Patent GB-257920-A (GB)
Title: Improvements relating to the reproduction of sound
IPC: G11B7/28
Filed: 1926-08-27
Abstract: 257,920. Poulsen, A., and Petersen, A. C. G. Sept. 3, 1925, [Convention date]. Optical apparatus. - In the reproduction of sound recorded photographically on a film by the projection of light therethrough on to a photoelectric cell in the reproduction circuit, an imageof the record projected on to the cell, or on to a slit in front thereof, is distorted unequally in directions corresponding to the motion of the film and transverse thereto so that the image conforms to the length and width of the cell or slit. This may be effected by inserting two cylindrical lenses c, C at right-angles to one another between the illuminated record s and the cell or slit F which occupies the position at the intersection of images b, B which would be projected by the lenses considered separately. In another arrangement, the lens adjacent the record may be a condensing or spherical lens.
Patent GB-1329343-A (GB)
Title: Apparatus for bonding a wire to a workpiece
IPC: H01L21/00
Filed: 1971-04-19
Abstract: 1329343 Welding by pressure HUGHES AIRCRAFT CO 19 April 1971 [5 Feb 1970] 21151/71 Heading B3R Apparatus for thermo-compressively bonding a wire 26 to a workpiece 12 comprises a workpiece support 36, means for positioning and applying pressure to a free end of the wire, a movable member 104 to which the positioning means and a cam follower 110 are attached, a cam 112 on a shaft 144 drivable in both directions to cause movement of the positioning means away from and toward a datum position, means for displacing the shaft 144 to move the datum position towards or away from the workpiece support and means for heating the free end of the wire. A bonding head 22 has a small tapered tube 24 which receives wire from a spool, the wire passing through a clamp located between the spool and the tube 24, and the tube may be heated by current flow therethrough to heat the wire end for thermocompression bonding to a microcircuit 12 arranged on the work-holder 36. The workholder is movable by a lever 40 to position different parts of the microcircuit beneath the tube 24. The bonding head 22 is mounted on the outer end of a long lever 104, Fig. 3, pivotally mounted at 106 on a frame and the inner end of the lever carries the cam follower 110 engaging the cam 112. The cam driving reversible motor 114 is controlled by a sensor 116 which stops the motor when a predetermined force between the wire and circuit is reached, permitting current to flow through the tube 24, and then starting the motor in the reverse direction to return to its original position. The shaft 144 on which the cam and motor are mounted is carried in two plates 140, 142 in turn carried on a shaft 134 coupled to a lever 100 so that movement of the lever up or down decreases or increases the initial distance of the head 22 from the work. Movement of the lever to the left causes a bonding cycle to start and movement to the right causes the clamp to grip a bonded wire, break it off and ball the end by means of a frame for a new bonding cycle. In operation an operator views the tube 24 through a microscope 304, moves the lever 40 to bring a desired part of circuit 12 beneath the tube and moves the lever 100 to select one of three "search levels" i.e. initial height of bonding head above the circuit, then moves the lever to the left to start a bonding cycle when the head lowers and bonds one end of the wire to the circuit. The operator moves the lever 100 to a new search level and adjusts the circuit position, starts a new bonding cycle and bonds the wire to the circuit at a point spaced from the first to form a loop. Then by moving the lever 100 to the right the wire is broken away and is balled for a new bonding cycle.
Patent GB-1294282-A (GB)
Title: Pilot relay
IPC: F16K31/126
Filed: 1971-04-19
Abstract: 1294282 Fluid-pressure servomotor systems FISHER CONTROLS CO 19 April 1971 [9 Feb 1970] 21268/71 Heading G3P A relay valve comprises an inlet 34, an outlet 74, an exhaust 71 and a passage 77 for applying a control pressure to a diaphragm 60. A valve 45 controls the inlet fluid which can pass into chamber 38 to the outlet 74 and a valve 43 controls fluid from the outlet to the exhaust 71. The valves 43, 45 are mounted on flexible discs 48, 50, Fig.3 (not shown) which bias the valves upwardly. The valve 45 has a stem 52 which is adapted to abut a stem 54 of valve 43. The valve 43 is slidable on the stem 54 which is secured to the diaphragm 60. It is biased downwardly by a spring 56. The length of the stem 52 is adjustable to alter the gain of the relay. A bleed is taken from the supply through a member 70 to the passage 77.  Operation. An electrical input is fed into a, torque motor 22 having an armature 24 which controls the bleed from a nozzle 26. The pressure in a chamber 62 above the diaphragm 60 alters as a consequence and the valves 43, 45 move to either increase or decrease the output pressure to a chamber 13 of a valve actuator 10. An increase in pressure in chamber 13, for example causes a stem 14 to move downwardly, the position being fed back to the armature by a linkage 27 which causes the pressure in chamber 62 to decrease until equilibrium is established at a new output pressure.
Patent GB-331395-A (GB)
Title: An improvement in or relating to machines for sawing off bars from stock
IPC: B23D45/14
Filed: 1929-07-11
Abstract: 331,395. Wright, S. A., and Greenwood, J. E. July 11, 1929. Circular - saw machines. - I n a machine for cutting bevel - ended bars from stock, two circular sams f, g at right angles and with their axes in one plane, are driven by oppositely - placed bevel wheels d, e, which engage pinions f<2>, g<2>, on the saw spindles, and are driven from a main shaft e through a sliding pinion n and a countershaft k carried by the sliding head b in which the saws are mounted. The head is traversed by a screw p rotated from the shaft o, or the table may be traversed beneath a fixed head. Suitable reversing gear for the drive of the shaft o and manual adjusting gear for the head may be fitted.
Patent GB-170368-A (GB)
Title: Means and method of tying young trees, shrubs or plants to stakes and the like
IPC: A01G17/12
Filed: 1920-07-15
Abstract: 170,368. Palmer, H. C. July 15, 1920. Strap fastenings.-An adjustable appliance for securing young trees &c. to stakes &c. comprises a strip or band of leather or other material provided with means for forming a slip-knot at one end for fastening it to the stake, and means for securing the other end after it has been passed round the tree and doubled round itself to form a distance piece or buffer between the tree and stake. Holes a, e are punched in both ends of the strip and a loop b is formed at one end by passing a stud B through two of the holes, a leather ring C having first been passed over the end to form a slip-loop. In another form, the ring C may be stitched on. The band is passed round the stake D, through the ring C, and round the trees E, and is then doubled once or twice round the part stretched between the tree and the stake, the end being finally secured by passing one of the holes a over the stud B. The band may be twisted between the tree and the stake. In a modification, the slip-knot is formed by passing one end of the band through a slot in the other. The part of the band that passes round the tree may be painted with a composition for protecting from insects.
Patent GB-180248-A (GB)
Title: A mechanical stoker for steam-waggon and like boilers
IPC: F23K3/14
Filed: 1921-08-12
Abstract: 180,248. Alley, S. E. Aug. 12, 1921. Mechanical stoking.-Solid fuel is fed to steamwagon and like boilers by mechanism which operates in consonance with the speed of the vehicle. As shown in Figs. 1 and 2, the shaft A<2> which is connected to the screw or other fuelfeeder, is operated by the rod D<2> which is reciprocated by being attached to a moving part of the engine or vehicle, through epicyclic gearing. The shaft A, driving the shaft A<2> through bevelwheels A' carries an arm C at its upper end and also a handle E<3> for operating the feeding- mechanism when the vehicle is stationary. The rod D' is pivoted to the arm C and causes it to rotate the ratchet-wheel B<1> through the pawl C<1>. A central bush on the wheel B<1> carries an arm supporting a pinion E in engagement with the two spur-wheels E<1>, E<2> of equal diameter but having a slightly different number of teeth. The wheel E<2> is connected to the shaft A while the wheel E' is attached to the gear casing D. By means of this epicyclic train, a rapid movement of the rod D' causes a slow rotation of the shaft A<2>. Adjustment of the pawl C<1> is effected by the pin C' on the radially adjustable plate C<3>. Ratchet gearing in the wheel E<2> allows the handle E<3> to operate the shaft A. Fig. 3 shows an arrangement of screw feeder for operation by this mechanism. The shaft A<2> is connected to the central shaft F<2> of a worm F in a casing F<1>. The fuel is fed from a bunker G through a trunk F<3> of uniform or gradually increasing area from the bunker to the grate, which is made in halves, one or both of which may be hinged for dumping. In modifications, reciprocated pistons or pushers are used in place of the screw feeder.
Patent GB-391751-A (GB)
Title: Improvements in and relating to liquid break electric switches
IPC: H01H33/16
Filed: 1931-07-27
Abstract: 391,751. Arc-rupturing in switches. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A. -(Assignees of Allgemeine Elektricitõts- Ges. ; 2, Friedrich Karl-Ufer, Berlin.) July 27, 1931, No. 21408. Convention date, July 28, 1930. Void [Published under Sect. 91 of the Acts]. [Class 38 (v).] The contacts of a high-tension switch are separated in a liquid consisting of an organosol of small conductivity. Suitable dispersoids for the organosol are liquids of high boiling point and low melting point such as glycol, glycerine, oils or synthetic hydrocarbons. In the construction shown a fixed contact c is arranged within an insulating vessel a containing an organosol b which is arranged in layers bl .. b<4> the upper layers having greater specific resistance and the lower layers having greater specific gravity. When the contact d is moved upwards away from the fixed contact the current is reduced in the successive layers and the contact d may be withdrawn from the liquid with very little arcing. To render the liquid noninflammable, substances are added such as urea.
Patent GB-243654-A (GB)
Title: Improvements relating to train-carried receiving apparatus for automatic train control systems
IPC: B61L3/22
Filed: 1925-08-26
Abstract: 243,654. Westinghouse Brake & Saxby Signal Co., Ltd., (Assignees of Holte, H. O.). April. 11, 1925, [Convention date]. Track apparatus for stopping trains.-In an automatic control system using alternating current supplied to the track rails in parallel, the train-carried receiver comprises a yoke 8 of magnetizable material extending transversely across the track and having four downwardly-projecting legs 9 - - 12, respectively provided with coils 13 - - 16. The coils are connected in series and arranged so that the polarities of adjacent coils are opposite. This arrangement prevents response of the control apparatus to stray currents &c. As shown, the legs 9, 12 are outside, and the legs 10, 11 inside, the track rails 1, 1<a>, and the coils are shown connected through an amplifier 6, shunted by condenser 7, to one winding of a train-carried relay 19.
Patent GB-283244-A (GB)
Title: Improvements in and relating to piling or stacking metal plates or sheets
IPC: B65G1/14
Filed: 1926-08-31
Abstract: 283,244. George, D., and Jenkins, A. Aug. 31, 1926. Delivery apparatus. - Metal plates or sheets delivered from a machine such as a dusting- machine over a table 31, Fig. 4, through a slot or between rollers 32, 33, are stacked in a receiver comprising side walls 7 - - 10, Figs. 1 and 3 provided with outwardly-flared upper surfaces which guide the plates into position in the receiver, and means for supporting the plates, one or more of the side walls being removable or partially removable to permit the removal of a stack of plates. The receiver is carried by two vertical pillars 4 to which are secured horizontal arms 5 on which are slidably and adjustably mounted two bars 11, 13, the wall 7 being fixed to the bar 11. The wall 8 is secured to Z-shaped members 15, the vertical limbs of which slide in slots in the bar 13 and have notches 15b cut in their lower edges so that the wall 8 can be raised and retained in its raised position by moving it to the right, Fig. 1, to allow the pile to be removed. The walls 9, 10 are carried by frames 16, 19 slidable vertically and horizontally respectively in the arms 5, the frames 16 being provided with notches 18 so as to retain the wall 9 in a raised position. A wheeled truck 35, Fig. 5, is used to support and remove the plates from the receiver and is provided with a board 36 which just fits the receiver. In a modification the receiver may rest on Z-bars, the horizontal flanges of which project within the receiver and support the plates, and the truck is arranged to run between the ledges and be raised or a part thereof elevated so as to lift the plates off the ledges before their removal. The whole receiver may be vibrated by cam or other means so as to cause the plates to settle, or one or more of the side walls mav be oscillated or reciprocated. A pair of adjacent side walls may be connected together and reciprocated in a diagonal direction. The walls 7 - - 9 may be formed of plates as shown, or as a framework or as gauge stops, and the corner edges are rounded so that when large plates are being stacked and these edges are not touching, the plate edges are not injured by contact with sharp edges. During the removal of the pile, a board or a pivoted comb 41, Fig. 10, is placed over the top of the receiver to receive the plates, and curved up parts 42 are provided to prevent the sheets slipping off. The plates may be taken by the truck to a sorting table to which the truck may be secured by bolts.
Patent GB-441623-A (GB)
Title: Improvements in water heating boilers for hot water supply and circulation systems
IPC: F24B1/183
Filed: 1934-07-23
Abstract: 441,623. Internally-fired hot-water boilers. BARUCH, H. N., White Marsh, AMORY, O. T., Newport Mews, and BLOXOM, O. A., Battery Park, all in Virginia, U.S.A. July 23, 1934, No. 21475. Convention date, July 21, 1933. [Class 64 (i)] [See also Group XI] A boiler has rear and side hollow interconnected hollow walls 34, 35, Figs. 6, 7, connected to a water circulation system, and a hollow bottom section 32 connected to a domestic hotwater supply system. The boiler may be placed in a fireplace or enclosed by a portable casing with heat-insulated sides and top. The upper parts of the side walls and back of the boiler converge towards a central flue 39. The draught through the fire is controlled by a thermostatically operated sliding front plate 46 and by a pivoted flue damper 43, which is opened and closed by the engagement of the counterweight of the sliding plate with the damper arm 44. The walls of the boiler are strengthened by transverse slotted webs 40. The grate 61 may have water-jacketed sides connected to the boiler bottom by nipples 63. A boiler enclosed by a casing 67, Fig. 14, has a door with upper and lower outwardly swinging sections 71, 72, the lower section when open resting on a bracket 70 and the upper section being held in its raised position by a hinged cover plate 73.
Patent GB-813795-A (GB)
Title: Arsenic xanthates, their preparation, and parasiticidal compositions produced therefrom
IPC: C07F9/68
Filed: 1956-07-12
Abstract: The invention comprises arsenic or mono- or di-alkyl- or aryl-arsenic alkylxanthates of formula <FORM:0813795/IV (b)/1> wherein R represents a saturated or unsaturated straight or branched chain alkyl group or a cycloalkyl group, R1 represents a substituted or unsubstituted alkyl or aryl group and x is 1, 2 or 3.  They may be prepared by reacting in an inert or substantially inert non-aqueous solvent a compound of formula R1(3-x)As(Hal)x wherein Hal represents a halogen atom with an alkali metal xanthate of formula <FORM:0813795/IV (b)/2> wherein M represents an alkali metal at a temperature between 0 DEG  and 150 DEG  C.  Ethyl alcohol and acetone are specified as solvents. The product may be isolated by conventional methods after removal of the alkali-metal halide formed. The arsenic alkyl xanthates formed may be used as insecticides, herbicides and fungicides (see Group VI).  In an example chlorodimethyl arsine is reacted in acetone with potassium ethylxanthate, to give an oil, dimethylarsenic ethylxanthate.  Other compounds prepared include dimethylarsenic isopropylxanthate, n-amylxanthate, allylxanthate, laurylxanthate and cyclohexylxanthate, arsenic tris-ethylxanthate and tris-isopropylxanthate, phenylarsenic bis(ethylxanthate), bis(isopropylxanthate) and bis(amylxanthate), p-chloro phenylarsenic bis(ethylxanthate), p - nitrophenylarsenic bis(ethylxanthate), diphenylarsenic ethylxanthate and diphenylarsenic isopropylxanthate.  Sodium allylxanthate may be prepared by dissolving metallic sodium in allyl alcohol and adding carbon disulphide.ALSO:Compositions possessing insecticidal, herbicidal and fungicidal activity comprie a carrier and as active ingredient, an arsenic xanthate of formula <FORM:0813795/VI/1> where R represents a saturated or unsaturated straight or branched chain alkyl group or a cycloalkyl group, R1 represents a substituted or unsubstituted alkyl or aryl group and #c is 1, 2 or 3.  The carrier may be a powdered solid such as talc, or a liquid medium in which the compounds are suspended or dissolved (preferably water).  The composition may contain other parasiticides, a surface-active agent or an adhesive. Specified active compounds include dimethylarsenic ethylxanthate, isopropylxanthate, n - amylxanthate, allylxanthate, laurylxanthate and cyclohexylxanthate, arsenic trisethylxanthate and bis-isopropylxanthate, phenylarsenic bis-(ethylxanthate), bis-(isopropylxanthate) and bis-(amylxanthate), p-chlorophenylarsenic bis-(ethylxanthate), p-nitrophenylarsenic bis-(ethylxanthate) and diphenylarsenic ethylxanthate and isopropylxanthate.
Patent GB-1336461-A (GB)
Title: Silver cadmium oxide composites
IPC: C22C32/00
Filed: 1971-04-19
Abstract: 1336461 Oxide-containing silver alloys DODUCO BETEILIGUNGS GmbH E DURRWACHTER and E BOSCH [trading as DR EUGEN DURRWACHTER DODUCO] 19 April 1971 [9 March 1970] 21610/71 Heading C7A A silver metallic oxide composite for use in electric contacts comprises Ag, CdO 6-15% and metal oxides from at least two of Ca, Li, Sb, Mg, Be, Al, Sn, Mn, Bi, Zr, to a total of 0À5-6%, with the metallic oxide particles being concentrated at the grain boundaries of the silver matrix. The material is formed by internal oxidation of an appropriate alloy by heating in oxygen for 11 days at 700C.
Patent GB-1291182-A (GB)
Title: Azo dyestuffs of the pyrazolone series
Inventor: MUELLER ROLF
IPC: C09B62/507
Filed: 1970-05-05
Abstract: 1291182 Azo dyes of pyrazolone series CASSELLA FARBWERKE MAINKUR AG 5 May 1970 [6 May 1969] 21620/70 Heading C4P The invention comprises azo dyes of the pyrazolone series of the general formula and their metal complexes, wherein D is the residue of a diazo component; A represents halogen, an alkyl or alkoxy group having 1-4 carbon atoms, or a phenylamino or phenoxy group wherein the phenyl nuclei may be substituted; B is a sulphonic or carboxylic acid residue; n is 1, 2 or 3; m is 0 or 1; R represents the residue of an aromatic, aliphatic or cycloaliphatic hydrocarbon having 1-8 carbon atoms and Z is a vinyl group or a group -CH 2 -CH 2 -X, where X is a radical that may be split off as an anion. The dyes are produced by acylating amines of the formula with a halide or anhydride of an acid of the general formula and optionally metallizing the dyestuff, either before or after acylation. The dyes give yellow, red or brown shades on textile materials of wool, silk, polyamide or natural or regenerated cellulose fibres.