baber/WOPTO huggingface dataset:
Patent GB-259802-A (GB)
Title: Improvements in or relating to change over devices for boiler feed water heaters or the like, more particularly for locomotives
IPC: F22D1/42
Filed: 1925-12-24
Abstract: 259,802. Knorr-Bremse Akt.-Ges., and Juliusburger, P. Dec. 24, 1925. Feedwater, heating. - Reversing the flow through heaters, more particularly in connection with locomotive boilers, is effected by providing double-seated valves a, b, which may be interconnected, in the feed-pipe, one a in the pipe between pump and heater V and the other b between feed-water and boiler. In the figure the valves are, shown as co-axial and movable in the same direction on a connecting rod operated by a steam cylinder D. With the valves in the position shown the flow is down the branch i and up the branch 2 to the heater and to the outflow K. When moved over to the other seats the flow is downward through the heater and up the branch 4 to the outlet. Modified arrangements of the piping are described, for manual or power operation of the valves and for valves with parallel axes.
Patent GB-841589-A (GB)
Title: Polyepoxy compounds
IPC: C08G59/24
Filed: 1957-10-18
Abstract: A hardenable composition comprises a polyepoxy compound, or mixture thereof, of the formula:-   <FORM:0841589/IV(a)/1> in which the group A1 and at least one of the A groups are radicals having the formula:- <FORM:0841589/IV(a)/2> where R and R1, which may be the same or different, are hydrogen atoms or alkyl groups containing not more than 6 carbon atoms, and the B groups and the remaining A groups which may be the same or different are hydrogen atoms or hydrocarbon radicals containing less than 20 carbon atoms, together with one or more of the following compounds as hardening agents:-4:41-methylene dianiline, diethyl aminopropylamine, diethylenetriamine, ethylendiamine, m-phenylenediamine, tris-(dimethyl-aminomethyl) phenol, triethylenetetramine and dicyandiamide, or an amino-polyamide derived from a polymeric unsaturated fat acid and a polyamide, such as are described in Specification 726,570. Examples describe the formation of mixtures as above and the curing thereof at 100 DEG C. for 8 hours.  (For preparation of the polyepoxy compounds see Group IV(b)).  In Examples: (4) the diepoxy allyl ether of o-allyl phenol is mixed with an amino-polyamide derived from polymerized linoleic acids and an excess of a mixture of triethylene tetramine and tetraethylene pentamine; (5) the same amino-polyamide is reacted with the diepoxy methallyl ether of o-allyl phenol; (6) the diepoxy allyl ether of o-allyl phenol is mixed with 4:41-methylene dianiline. Uses.  Coating, casting, potting, adhesives, laminates.ALSO:The invention comprises monomeric polyepoxy compounds having the general formula <FORM:0841589/IV(b)/1> in which the group A1 and at least one of the A groups are radicals having the formula <FORM:0841589/IV(b)/2> where R and R1, which may be the same or different, are hydrogen atoms or alkyl groups containing not more than 6 carbon atoms, and the B groups and the remaining A groups which may be the same or different are hydrogen atoms or hydrocarbon radicals containing less than 20 carbon atoms.  The polyepoxy compounds may be prepared by reacting a monohydric phenol containing at least one unsubstituted ortho and/or para position, with an allylic halide to replace the phenolic hydrogen atom with the allylic radical -CH2R=CHR1, heating the resultant ether to regenerate the phenolic hydroxyl group and shift the allylic radical to an unsubstituted ortho or para position, reacting the resulting compound with an allylic halide to replace the hydrogen atom of the regenerated hydroxyl group with the allylic radical, and epoxidizing the double bonds of the allylic groups to form said polyepoxy compound.  The epoxidation may be effected using an organic peracid, such as peracetic or performic acid, which may be formed in situ, in solution in acetic or formic acid or in an inert solvent.  The polyepoxy compounds may be cured and hardening with suitable agents (see Group IV (a)).
Patent GB-1158777-A (GB)
Title: Improvements in or relating to Waveguide Device having Susceptance Elements with Temperature Compensation
Inventor: KURODA TAKAJI
IPC: H01P1/208
Filed: 1966-07-20
Abstract: 1,158,777. Microwave filters. NIPPON ELECTRIC CO. Ltd. 20 July, 1966 [11 Aug., 1965], No. 32665/66. Heading H1W. The materials chosen respectively for a waveguide and for the axially-spaced susceptances defining the cavity resonators of a waveguide filter are such that the resonant frequency of the cavities does not vary with temperature. The specific embodiment comprises a rectangular waveguide with arrays of posts arranged in axially spaced tranverse planes and the variation in resonant frequency with change in axial spacing and post diameter is discussed. It is shown that the ratio of the temperature coefficients of the materials may be chosen such that this variation is zero and that this ratio depends upon the number of posts (one or more) in each array. Silver and Invar (Registered Trade Mark) are given as examples for posts and waveguide respectively.
Patent GB-1481968-A (GB)
Title: Spindriers
IPC: D06F49/00
Filed: 1974-07-24
Abstract: 1481968 Machinery safety devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 24 July 1974 32692/74 Heading F2J The spin-dryer of a twin-tub washing machine is operated by the usual electric motor (not shown) through a fluid coupling (not shown) having an hydraulic control circuit which includes a flow-valve 7 connected to detect when the spin-dryer lid 3 is in a closed condition. The flow-valve 7 is connected to a spin-dryer control arm 4 which may be positioned in any one one of three control positions as follows: In Fig. 2 the arm is positioned to the left, which defines a "wash-tub drain position", clear of the spin-dryer lid 3 whereby the flow-valve 7 is closed, blocking a duct 6, to prevent operation of the spin-dryer the lid 3 of which may be readily opened, an extension 11 of the arm 4 deflecting a cord 10 to open the pump drain 9 of the washing tub. In Fig. 3 the arm 4 is positioned across the spin-dryer lid 3, which defines the "spin-position", whereby the flowvalve 7 is opened to unblock duct 6 for operation of the spin-dryer the lid 3 of which cannot, in this position be opened. In Fig. 4, the arm 4 is moved to the right, which defines a "wash only position", again clear of the spin-dryer lid 3 whereby the flow-valve 7 is again closed, blocking duct 6, to prevent operation of the spin-dryer, the lid 3 of which may again be readily opened, the extension 11 of the arm 4 now operating a micro-switch 8 to complete a motor circuit through a wash-timer and thermostat switch (both not shown) to operate the wash-tub agitator (not shown) so that the washing part of the laundry operation can be effected.
Patent GB-760380-A (GB)
Title: Improved lubricating grease
Filed: 1954-11-12
Abstract: Paraffin waxes having melting-points between 10 DEG  and 60 DEG  C are oxidized at temperatures between 100 DEG  and 160 DEG  C. in the presence of air and an oxidation catalyst such as potassium permanganate, and the palmitates, stearates and naphthenates of manganese, cobalt and aluminium.  The oxidized products, which have mean molecular weights between 180 and 450, are separated from unchanged paraffin wax by solvent extraction with acetone, and then distilled under vacuum or by steam distillation.  The oxidized paraffin waxes are condensed with alkylene oxides or polyalkylene oxides, preferably C2 to C6 alkylene oxides or their polyoxides, in equimolecular proportions in the presence of a basic condensation catalyst at temperatures between 220 DEG  and 250 DEG  C.  The condensation products have mean molecular weights between 300 and 7000.  In an example, a paraffin wax melting at 50 DEG  to 52 DEG  C. is oxidized at 120 DEG  C. in the presence of air and manganese stearate, the oxidized wax being separated from unchanged wax by being dissolved in acetone.  Two portions of the oxidized wax having a molecular weight from 200 to 350 and being the 2 to 40 volume per cent cut are condensed with 40 per cent and 60 per cent by weight of ethylene oxide respectively at 220 DEG  to 250 DEG  C. in the presence of caustic soda.ALSO:A lubricating grease composition comprises a lubricating oil thickened to a grease consistency, and contains a minor proportion of the condensation product of an oxidized paraffin wax and a monoalkylene or polyalkylene oxide.  The paraffin wax has a melting point between 10 DEG C. and 60 DEG C., and is oxidized at a temperature between 100 DEG C. and 160 DEG C. in the presence of air and an oxidation catalyst, such as potassium permanganate, and the palmitates, stearates or naphthenates of manganese, cobalt and aluminium.  The oxidized paraffin wax is condensed with an alkylene oxide having a mean molecular weight between 180 and 450, preferably having 2 to 6 carbon atoms in the molecule, such as ethylene oxide, at a temperature between 220 DEG C. and 250 DEG C. in the presence of a basic catalyst such as sodium or potassium hydroxide.  The condensation product has a mean molecular weight between 300 and 7,000.  The lubricating oil, which may be a mineral oil or a synthetic oil, such as synthetic esters or synthetic hydrocarbons prepared by the Fischer-Tropsche process, is thickened with alkali metal or alkaline earth metal soaps, particularly sodium or lithium soaps, of C8 to C40 fatty acids; an example is sodium stearate.  The soap may be formed in the oil. The grease composition contains 0.01 to 5 weight per cent of the condensation product.  The composition may also include glycerides or polyglycerides, salts of fatty acids, antioxidants such as phenyl a-naphthylamine, anti-rust agents, E.P. agents, and agents improving adherence of the grease to metals.  Examples of grease compositions are given.
Patent GB-835160-A (GB)
Title: Heat exchanger
IPC: F28D15/02
Filed: 1957-10-21
Abstract: 835,160. Stuffing-box substitutes. LINCOLN, R. L. Oct. 21, 1957, No. 32822/57. Class 122 (5). [Also in Group XIII] A seal 17 provided around a rotary heat transfer element 5 (see Group XIII) at the point where it passes through an aperture in a wall 4 separating the heat-exchanging fluids, comprises a ring member 18 secured to the wall and having a rim 19 against which asbestos or like material 20 is held in sealing engagement by the differential pressure between the fluids flowing on opposite sides of the wall 4. The material 20 is clamped between split cover rings 21, 22 spaced by a spacer ring 24. Also contained between the rings 21, 22 is a carbon seal ring made up of segments 26 held in sealing engagement with each other and with the surface of the rotary element 5 by a coil-spring 28.
Patent GB-1437859-A (GB)
Title: Bag feeding apparatus for bag closing machine
IPC: B65B51/07
Filed: 1974-07-25
Abstract: 1437859 Closing bags DAVE FISCHBEIN MFG CO 25 July 1974 [2 Aug 1973] 32857/74 Heading B8C A bag closing machine wherein open-topped bags 18 are fed past a sewing head 16 comprises a bag feeding apparatus 10 including a rigid frame 24, bag guiding assemblies adjacent a feed path (144), Fig. 4 (not shown), the guiding assemblies 84, 108 including endless belts 76, 107 for engaging opposite sides, of the bags 18, drive means 26 for driving the assemblies 84, 108 through transmission means 80, and means mounting at least one of the assemblies 84, 108 to enable it to shift to allow oversize objects to pass. The belts 76, 107 are trained around idler pulleys 64, 75, 104, 106, and respective drive pulleys 60, (102), Fig. 6 (not shown). The pulleys 60, 64, 75 are supported between plates 62, 82 rigidly suspended from the frame 24 by a tubular member 32, and the pulleys (102), 104, 106 are suspended from the frame 24 on pivotable members 116, 118 defining a parallelogram linkage, a spring 136 urging the belt 107 towards the belt 76, but allowing the belts to separate in case of emergency. The transmission means 80 comprises a belt and worm-gear connection 33-38 from a motor 26 to a gear 45, from which respective gears 54, and (47), (49), Fig. 5 (not shown), drive a shaft 55 of the pulley 64 and a member (88), Fig. 6 (not shown), connected to a member 98 for driving the pulley (102) by a hexagonal-sectioned member 94 defining a universal coupling to allow for movement against the spring 136. The belts 76, 107 act to press the edges of the bags 18 together as they are fed to the sewing head 16.
Patent GB-1140322-A (GB)
Title: Novel indane derivatives, and processes for their preparation
IPC: C07D307/77
Filed: 1967-07-18
Abstract: 1,140,322. 1 - Hydroxy - 4 - carboxyalkyl- 7a - alkylhexahydroindane - 5 - ones and derivatives. ROUSSEL-UCLAF. 18 July, 1967 [27 July, 1966], No. 32984/67. Headings C2C and C2U. The invention comprises compounds of Formulµ (I) (and its salts), (III), (IV), (V), (IX) and (X), wherein Y is alkyl, R<SP>1</SP> is C 1-10  acyl, R is C 1-8  alkyl and X is a ketal residue (e.g. ethylenedioxy); in intermediates (VI) and (VII), R<SP>2</SP> is aryl. In scheme (I), (II) is converted to (III) with BOH+acid, (III) to (IV) with a reactive derivative of the acid R<SP>1</SP>OH, (IV) to (V) with a ketalizing agent + strong acid, (V) to (VI) with R<SP>2</SP>Mg-halide, followed by strong mineral acid hydrolysis, (VI) to (VII) with an esterifying agent, and (VII to (I) with an oxidizing agent followed by aq. alcoholic alkali-metal base. In scheme (II), (VIII) is converted to (IX) with an alkali metal borohydride, (IX) to (X) with H 2 /Pd, followed by esterification, and (X) to (I) with an aq. alcoholic alkali-metal base. Estradiol 3-methyl ether is synthesized as follows: I(Y=Me) is formylated, the formyl derivative is then reacted with p-MeOC 6 H 4 - MgBr to give 1#-hydroxy-4-carboxymethyl-5- p - methoxyphenyl - 7a# - methyl - 3aα,4#,7,7atetrahydroindane (characterized as methyl ester) which is reduced (H 2 /Pd-C) to the hexahydroindane, the latter acetylated and then cyclized with syrupy phosphoric acid to 3- methoxy-6-oxo - 17# - acetoxy - estra - 1,3,5(10)- triene (X1), this being saponified to the 17#- hydroxy compound in which the 6-oxo group is reduced with H 2 /Pt-C. (XI) is characterized as the dinitrophenylhydrazone.
Patent GB-320796-A (GB)
Title: An improved lifting device for assisting in the manipulation of motor vehicle wheels
IPC: B60B29/00
Filed: 1928-11-12
Abstract: 320,796. Smith, W. F. Bensted- Nov. 12, 1928. Jacks.-A lever jack 1 for lifting and manipulating a detachable wheel 4 of a motor vehicle is provided with a curved end 3, an adjustable fulcrum 6, and a pedal 2. The wheel-engaging end 9, Fig. 4, of the jack may be forked and provided with rollers 11 curved to fit the tyre and to permit rotation of the wheel. The transverse fulcrum 6 may be formed as a roller to facilitate manipulation. For heavy wheels the fulcrum 13, Fig. 5, is at the end of the jack and a screw 15 may be fitted to the handle end to raise the load. A fluid-pressure jack may be placed under the handle end to raise the load.
Patent GB-367464-A (GB)
Title: Improvements relating to magnetic separators
IPC: B03C1/14
Filed: 1931-08-04
Abstract: 367,464. Magnetic separators. THOMPSON, H. H., DAVIES, A. E., and BOX, W. E., Magnet Works, Lombard Street, Birmingham. Aug. 4, 1931, No. 33076/30. [Class 72.] In a magnetic separator in which fixed polepieces g, h, i connected by cores j are arranged inside a rotating drum or pulley a, a magnetic strip m is arranged on the back or " dead " side of the drum &c. a opposite the polepiece h, said strip being magnetized by induction and secured to the pole h. The poles g, h, i overhang or project from the cores j considerably in one direction, and very slightly in the other.
Patent GB-265161-A (GB)
Title: New or improved means for severing a glass rod or tube
IPC: C03B33/095
Filed: 1926-12-31
Abstract: 265,161. Soc. du Verre Sili-ChromÚ. Jan. 29,1926, [Convention date]. Drawing.-A device for severing a continuouslymoving tube or rod of glass, while it is still hot, consists of a cooled body with a sharp edge which is moved into contact with the tube and causes it to crack by local chilling. The device consists of a conical container a filled with fibrous material which is kept moist by a drip-feed device. A rigid body a' with a sharpened edge projects from the lower end of the container. The device is moved at intervals so as to bring the edge a<1> into contact with a continuously-moving hot glass tube b, and cause it to crack-off. The edge a<1> may be shaped to conform to the surface of the tube, and the device may be arranged to move with the tube to ensure cracking.
Patent GB-392632-A (GB)
Title: Improved transformer equipment particularly for use with electron discharge devices such as x-ray apparatus
IPC: H05G1/32
Filed: 1931-11-30
Abstract: 392,632. Supply systems ; transformers. WATSON & SONS, Ltd., W., 13, Bligh Street, Sydney, Australia. Nov. 30, 1931, No. 33123. Convention date, Feb. 26. [Classes 38 (ii) and 38 (iv).] Boosting by s t a t i c transformers.-A R÷ntgen-ray tube E is supplied from series - connected secondaries S<1>, S3 of two transformers mounted on parts A, B respectively of a common core C. The primary associated with S<1> is in two parts P<1>, P<2> each provided with tapping- switches SP<1>, SP<2> and is supplied from the mains. The primary P<3> associated with secondary S<3> is connected through a reversing-switch RS across an adjustable portion of P<2> when contacts SC<1>, SC<2>, SC<3> are bridged, so that an adjustable bucking or boosting voltage can be induced in the secondary S3. When the primary P<3> is disconnected the secondary S<3> acts as a series choke. The filament of the tube E is supplied from a tapped part S<2> of the secondary S<1>. Reference has been directed by the Comptroller to Specification 8907/05, [Class 38, Electricity, Regulating &c.].
Patent GB-1199472-A (GB)
Title: Apparatus for Collecting Material.
Inventor: SEAMAN RALPH EDWIN DAVID
IPC: A01D45/00
Filed: 1967-07-19
Abstract: 1,199,472. Pea and bean harvesters. R. E. D. SEAMAN and T. D. SEAMAN. 22 April, 1968 [19 July, 1967], No. 33186/67. Heading A1F. [Also in Division B8] Apparatus for collecting material, e.g. a green pea and bean harvester, is provided with an auxiliary tipping tank 10 mounted in a frame structure 13 mounted on rollers 16 to run freely inside guide rails 14 and arranged to collect the crop from the harvester's conveyer 11 when the main tank 12 is being unloaded. The auxiliary tank 10 is attached to the main tank 12 by coupling hooks 20 and as the tank 12 is pushed out by hydraulic rams the auxiliary tank 10 is pulled into position and secured by a latch engaging a catch on the harvester frame. As the main tank 12 tips it is unhooked from the auxiliary tank 10 and as it tips back it couples again with the auxiliary tank 12 and pushes it back up the guide rails 14 so that the crop collected by the auxiliary tank 10 is tipped into the main tank 12.
Patent GB-207386-A (GB)
Title: Improvements in presser feet for sewing machines
IPC: D05B29/06
Filed: 1922-12-06
Abstract: 207,386. Thompson, W. P., (Union Special Machine Co.). Dec. 6, 1922. Sewing-machines; presser-feet are formed with a fixed main section and two yielding sections one on each side of the main section, such being particularly adapted for machines making a flat covered seam and using three needles with a looper thread on one side of the seam and a covering thread on the other side. The main section 13 extends mainly in rear of the needles and the side sections 14, 15 extend to a point in front of the needles. An outer projection 20 on the section 13 also extends alongside and in front of the needles and is slotted at 24 to receive the stationary member of a trimming mechanism cooperating with a movable member carried by an arm. The section 14 is received in a recess 27 and has an upwardly extending shank 28 in which is a. spring 29 adjustable by a screw 31. An auxiliary section 35 is mounted on a spring- pressed arm 36 and projects through an opening 34 in the section 14 which also carries an arm 39 with upper thread guides 40 which assist in the formation of the covering stitches and in chaining off. The section 15 is carried by a shank 41 secured against the section 13 by a screw 48 and pressed by a spring 45. The inner faces 47, 49 of the sections 14, 15 are curved and bevelled to receive the. upturned edges of the fabric sections, direct them to the trimming mechanism and after they are trimmed turn them down into overlapping relation. The part 45 overlies the part 49 to some extent as shown in the underneath plan, Fig. 4.
Patent GB-191580-A (GB)
Title: Improvements in or relating to oil feeding devices
IPC: F16N7/02
Filed: 1921-12-10
Abstract: 191,580. Brearley, L., and Lilleker, J. Dec. 10, 1921. Gravity-feed lubricating; heating lubricant.- A lubricator comprises a receptacle a provided with a number of spring-pressed valves e located outside the receptacle to seat against the bottom ends of screwed sleeves c, the valve spindles d passing through a guide plate b and through a plate f operated by a rocking arm h. By adjusting the nuts f<2> below the plate f, any one or number of valves may be operated or cut out at will and the travel regulated. The tensions of the springs g are adjusted by nuts g<1>. The device may be used for oiling bricks during the process of manufacture. The oil may be heated by passing steam along the inside of the bottom of the receptacle.
Patent GB-1162585-A (GB)
Title: Electrostatic Printing Machine and improved method of Electrostatic Printing
IPC: B41M1/12
Filed: 1967-07-19
Abstract: 1,162,585. Printing apparatus; electrostatic. UNIMARK CORP. 19 July, 1967 [26 Sept., 1966], No. 33276/67. Heading B6C. In an electrostatic screen printer using powdered ink the screen image is carried on the peripheral wall 2 of a rotating drum 1 the ink being enclosed in a readily removable vertical stationary hopper 46, 47, within the drum. As the latter rotates the ink is vibrated within the hopper by "knocking means" actuated by the drum's rotation and passes through a filter pad forming the bottom of the hopper to the lower inner surface of the drum which is roughened to carry the deposited powder to the top of the drum for transfer to a rotating roller 26 within the drum which forces the powder through the image areas into the space between the drum and an article which lies above and is to be printed. An electrostatic field established between the drum and the article carries the powder to adhere to the latter. In an alternative apparatus the roller is placed near the lower inner surface of the drum and the powder is caused to pass through the image areas to articles passing beneath the drum.
Patent GB-869593-A (GB)
Title: Improvements in or relating to rapping devices for the collecting electrodes of electrostatic precipitators
IPC: B03C3/76
Filed: 1959-10-01
Abstract: 869,593. Electrostatic precipitation. METALLGESELLSCHAFT A. G. Oct. 1, 1959 [Nov. 4, 1958], No. 33364/59. Class 39(1). In a rapping mechanism for the collecting electrodes of an electrostatic precipitator, a spring-loaded rapper bar 2 is pendantly suspended at each end, inside the precipitator housing by the collecting plates and externally by a pendulum 5 of much shorter length, the attachment 4 to the hanger arm comprising a bolt which is torsionally rotated in metal/rubber bushes so that there is exerted a restoring force additional to that of the spring 15 when the hanger arm is deflected by an eccentric rapping finger 9. The angle of torsional deflection is between 6 and 20 degrees. The impact member 7 is carried by the lower end 6 of the pendulum 5 which is bent slightly inwards. The rapping finger 9 is mounted on a revolving shaft 8. A sprocket 10 on the shaft 8 is driven by a chain 12 from a motor or through gearing 11. The rapper shaft 8 is common to all the collecting plates. The rapper bar carries a bellows 17 for sealing the opening in the precipitator housing. The upper end of the pendulum 5 consists of a suspension rod having a rubber spring member 21 as supporting disc for the screw connection. The various parts of the mechanism are readily dismountable.