baber/WOPTO huggingface dataset:
Patent GB-229245-A (GB)
Title: Improvements in piston rings
IPC: F16J9/14
Filed: 1924-06-30
Abstract: 229,245. Stern, A. Feb. 14, 1924, [Convention date]. Piston packing. - The ends of a packing- ring are recessed to form lower and upper tongues b, c, which lie between the same pair of radial planes. The engaging surfaces 1 of the tongues are parallel with the edges of the ring and terminate in curves 2.
Patent GB-352174-A (GB)
Title: Improvements relating to heat treatment furnaces
IPC: F27B9/24
Filed: 1930-05-21
Abstract: 352,174. Electric resistance furnaces. HEVI DUTY ELECTRIC CO., 4100, Highland Boulevard, Milwaukee, Wisconsin, U.S.A.- (Assignees of Cooley, W. B.; Knickerbocker Hotel, Milwaukee, Wisconsin, U.S.A.) May 21, 1930, No. 15665. Convention date, May 22, 1929. [Class 39 (iii).] The endless band conveyer 11 is arranged entirely within the furnace chamber 1 and is supported at intervals along the upper run by driven rollers 10 so that a lighter belt may be used and frictional wear is reduced. The spindles of the rollers extend to the outside of the furnace and carry sprockets by which they are all driven from a variablespeed shaft 21. Two or more drums 13 may be provided for supporting the lower run, and these also may be driven from the shaft 21. The end drums 12, 12a may be driven by chain-and-sprocket gearing from the second roller spindle 10 from each end. The furnace is fitted with heating elements 9 at the bottom, lower side walls, and roof, and elements 8 in the emergency door 7. Articles to be treated are introduced through the verticallysliding door 6 over a flanged tray 34, and they are discharged through an inclined shoot 39 dipping into an oil tank 40. Specification 312,006, [Class 39 (iii), Heating by electricity], is referred to.
Patent GB-402155-A (GB)
Title: Improvements in and relating to india rubber springs
IPC: B29C35/02
Filed: 1932-06-02
Abstract: 402,155. Indiarubber springs; vulcanizing-moulds. SPENCER MOULTON & CO., Ltd., G. and SPENCER A., 2, Central Buildings, Westminster. June 2, 1932, Nos. 15665 and 26252. [Class 108 (iii).] An indiarubber spring unit more particularly for buffing and draft gear comprises shouldered curved or straight bars 2 of indiarubber located in elongated slots in a metal plate 30 so that the shoulders engage the margins of the slots and the bars project at opposite faces of the plate. In one method of manufacturing the unit the bars are first shaped by moulding and vulcanizing and formed with a central circumferential groove 1 and are then pressed into the slots in the plate. The bars may be of the waisted form having curviform ends described in Specification 390,555. One bar only is produced at each operation by the mould shown in Fig. 1 in which the mould halves 4, 5 have similar cavities 6 separated by a slotted templet 10 divided to permit easy removal from the finished bar, and several bars in the form of a multiple bar are produced at each operation by the mould half-shown in Fig. 6, which is formed with ribs 17 to produce the circumferential grooves and with sharp ridges 18 which form circumferential guides for the circular knife used to sever the multiple bar into single bars. In another method of manufacture indiarubber bars are located in slots in a metal plate and are then cured in moulds which swell the rubber over the marginal edges of the slots so that the bars are interlocked with the plate. According to the first Provisional Specification radial or like blocks of indiarubber may be used as bars. According to the second Provisional Specification the bars may have a rectangular, frusto-conical, or other section. Specification 391,086 also is referred to.
Patent GB-378993-A (GB)
Title: Improvements in or relating to web roll supporting mechanism for use in printing machines
IPC: B65H19/12
Filed: 1931-05-28
Abstract: 378,993. Feeding webs. HOE & CO., Ltd., R., 109, Borough Road, London.- (Hoe & Co., Inc., R. ; 138th Street, New York, U.S.A.) May 28, 1931, No. 15698. [Class 100 (i).] The active web roll R, Fig. 1, feeding a printing-press and a spare roll S are supported by a pair of vertically arranged endless chains 7, provided with axially adjustable spindles to engage the ends of the rolls, means being provided to prevent endwise movement of the spindles after adjustment to keep the rolls centred between the chains and means also being provided for laterally adjusting the chains for side register of the web. The chains 7 pass round sprocket wheels 8, 11 on spindles 9, 12 mounted in frames 5 secured to base members 1 and the shaft 12 may be driven by suitable gearing 13, 14 to rotate the chains to raise the spare roll to the running position and lower the expired roll to the unloading 'and the reloading position. The roll spindles 23, Fig. 4, are carried by heads 6 secured to the chains and provided with guide collars 6b engaging tracks 6c in the frames 5 and with rollers 18, 19 which bear against the sides of the frame 5 and prevent endwise movement of the heads. Lateral adjustment of the chains and frames 5 for side register of the web is effected by a rotatable screw 20, Fig. 1, threaded into the base members 1 which are slidable upon bedplates 21. The roll-engaging spindles 23 are axially adjustable in the heads by means of quick and slow adjustment devices. The spindle is slidably mounted in a sleeve 25<1>, Fig. 4A, rotatable in the head 6 and provided with a hand-wheel 25 and with a helical groove 25<3> in which engages a spring- pressed pin 26<1> mounted in the head 6. The fine adjustment of the spindle 23 is effected by turning a hand-wheel nut 24 rotatably connected to the hand-wheel 25 and engaging a screw 24<2> fixed to the spindle. Rapid adjustment of the spindle is effected by turning the hand-wheel 25. The sleeve 25<1> is locked at the ends of its movements by the pin 26<1> engaging recesses 25<4> at the ends of the groove 25<3>.
Patent GB-242196-A (GB)
Title: Improvements in or relating to combination photographic camera and printing projector
IPC: G03B27/32
Filed: 1925-06-17
Abstract: 242,196. Cheaney, T. F. June 17, 1925. Enlarging, copying and reducing. - An object 14, mounted on an adjustable support 12 in a casing C having a hinged door 8, is illuminated by a source such as 15 with. in the casing, and an image of the object is projected, through a lens 16 adjacent tc the light source, either (1) directly upor a sensitive surface sup ported, for example or a glass plate 29 mounted in a carrier 28 which may be adjustably secured to brackets 27 on the casing, or (2) upon a mirror 22, removably and adjustably mounted upon a standard 17, which reflects the image to a sensitive surface mounted, for example, upon a shelf carried by arms secured to the sides of the casing. An external lightsource, such as 33, is provided on the casing, for illuminating an external object to be photographed in the apparatus upon a sensitized sheet placed on the support 12, the mirror 22, in this use of the apparatus, being removed.
Patent GB-159446-A (GB)
Title: Improved vacuum cleaner nozzle
IPC: A47L9/02
Filed: 1920-06-11
Abstract: 159,446. Turner, H. June 11, 1920. Vacuum cleaning-apparatus.-A vacuum-cleaner nozzle adapted for cleaning the compartments of a tray or box, and particularly printers' typecases, comprises a tube a, Fig. 1, containing a pivotally-mounted diaphragm b of wire gauze and a rubber mouthpiece c. The mouth of the tube is made of a shape corresponding with that of the compartment to be cleaned.
Patent GB-1171155-A (GB)
Title: Improvements in or relating to Cycloalkane Derivatives and the manufacture thereof
IPC: C07D319/08
Filed: 1966-11-28
Abstract: 1,171,155. Acetals of dihydrexy-cyclopentane compounds. UPJOHN CO. 28 Nov., 1966 [29 Dec., 1965], No. 15903/69. Divided out of 1,171,154. Heading C2C. Novel racemic compounds of the Formulµ (I) and (II) (wherein R is C 1-8  alkyl; and W is H, C 1-8  alkyl or substituted alkyl or C 6-8  aryl or substituted aryl) are prepared by cleaving racemic compounds of the Formula (III) with an oxidant such as lead tetra-acetate or periodic acid to give compounds (I) and, when required, treating these with triphenylmethoxymethylphosphorane to give compounds (II). This latter process results in the formation of an enol ether which is then hydrolysed with, for example, aqueous acetic acid, or aqueous acetone containing p-toluenesulphonic acid. Triphenylmethoxymethyl phosphorane is prepared in solution by reacting triphenyl phosphine with chloromethoxymethane to give a phosphonium salt and then suspending this in ether under nitrogen and adding phenyl lithium.
Patent GB-612484-A (GB)
Title: Improvements in or relating to trailer vehicles
IPC: B60P3/34
Filed: 1946-05-25
Abstract: 612,484. Trailers convertible into tents. MEADOWCROFT, F. May 25, 1946, No. 15915. [Class 108 (i)] [Also in Group X] A trailer vehicle adapted to house the necessary fittings to enable it to be converted into a tent (see also Group X) comprises a centre rectangular box structure formed of tubular members a, having outriggers b, b, for carrying the road wheels c, c, provided with a floor d and having canvas walls e. Tubular bed frames g carrying canvas hammocks h laced to the tubing are secured by spigots engaging sockets f to the centre structure a and a further bed frame i is held by spigots g<SP>1</SP> on the frames g. A pair of sockets at the open end of the structure receive a U-shaped tubular door frame k which supports a pillar n holding one end of a ridge pole r whose other end is supported by a further pillar n resting in a socket n<SP>1</SP> in the centre structure. A tent s extends from the ridge pole rover the ends of poles t secured to the edges of the bed frames and stayed by guys u. An inner flap s<SP>1</SP> is secured to the outer edges of the bed frames and held up inside the poles t by strings v tied to the latter. A jacking pad m is provided at each corner of the centre structure. A table member may be provided to fit across the top of the centre structure. All the loose fittings stow in the well of the trailer when the tent is dismantled, and a canvas cover may be provided to cover the stowed structure.
Patent GB-236538-A (GB)
Title: Process for producing a mercury compound of nitro-ortho-cresol and the product thereof
IPC: C07F3/12
Filed: 1925-06-20
Abstract: Diacetoxymercuri-4-nitro-o-cresol, probably the 3 : 5-compound, is prepared by treating a hot solution of 4-nitro-o-cresol in caustic alkali with an acetic acid solution of mercuric acetate and neutralizing the solution.  The precipitated product is freed from the mercury derivative of nitroindazole by taking it up with caustic alkali or ammonium hydroxide, acidifying, and washing the precipitate with methyl alcohol and ether.  The product possesses germicidal properties.  Alkali metal compounds of the product may be obtained by dissolving it in alkali hydroxide, treating the solution with methyl alcohol and precipitating with ether.  4-Nitro-o-toluidine is obtained by nitrating o-toluidine in sulphuric acid solution at a low temperature and decomposing the sulphate with sodium hydroxide. 4-Nitro-o-cresol is produced by diazotizing a hot sulphuric acid solution of 4-nitro-o-toluidine with sodium nitrite and injecting steam into the product; after separating off the black tarry oil of nitroindazole, the yellow solution is cooled to the point of crystallization.
Patent GB-553383-A (GB)
Title: Improvements in or relating to the manufacture of locking washers
IPC: F16B39/24
Filed: 1941-12-11
Abstract: 553,383. Making washers. LOCK WASHERS & NUTS, Ltd., BAEDEKER, A. E., and KILLEEN, L. W. Dec. 11, 1941, Nos. 15976/41 and 15478/42. [Classes 83 (ii) and 83 (iv)) Locking-washers of the type described in Specification 389,369 are produced from strip stock by a multiple die-set. The lower die comprises a die p. Fig. 2, for punching the central hole, a slitting cutter q for cutting and bending the locking-teeth, and a blanking out die r that also serves to contract the washer to cause the overlapping of the teeth. The upper tool comprises a punch c, Fig. 4, a complementary slitting tool f and a blanking out punch j, containing a free pilot o. The hole i in the slitting tool is of less diameter than the hole in the washer so that the cutting edges are wider than the length of the slits to be cut thus obtaining a stronger tool. The punch j has cutting edge k, Fig. 6, relieved at n to cause a downward set of the edge of the washer during blanking out that counteracts the upwards set imparted in forcing the washer through the contracting die t, Fig. 3, so that the completed washer is flat. The pilot locates the strip correctly beneath the blanking punch. The die r is parallel at s for the thickness of the washers, the angle of the conical part t is about 15 degrees, and the following parallel section u, of the thickness of two inches, leads to a clearance bore v delivering to a hopper or shoot. Spring pins w, Fig. 2, lift the strip clear of the slitting cutter q during feeding. Several sets of tools may be mounted side by side to operate upon a wider strip. Specifications 518,146 and 528,159 also are referred to. According to the first Provisional Specification it is the cutter f that is fitted with a pilot.
Patent GB-627296-A (GB)
Title: Improvements in the construction of ash hoppers and hearths more particularly for solid fuel furnaces and the like
IPC: F23J1/00
Filed: 1946-05-27
Abstract: 627,296. Ashpits. DANIELS, A. W., and B.V.C. INDUSTRIAL CONSTRUCTIONS, Ltd. May 27, 1946, No. 16043. [Class 51 (i)] [Also in Group XXX] A hopper 1 for furnace ash has base 5 formed of interlocking metal blocks 10 each provided with a recess 12, which recesses interconnect to form passages for a cooling fluid. Fig. 4. Blocks 10 rest on metal support 11 carried by frame 7. The latter is lined with firebricks 6 to which are bolted metal plates 9. The blocks are shaped as shown so that they cannot be removed without first removing plates 9. Fig. 2. Jets 18 may be introduced through the base 5, e.g. as units which replace one or more blocks 10. The cooling stream for the blocks is injected from jet 64. Gate 14 controls exit 13. ' Specification 614,250 is referred to.
Patent GB-160585-A (GB)
Title: Improvements in the method of and apparatus for expanding tubes particularly suitable for expanding the ends of corrugated boiler flues
IPC: B21D41/02
Abstract: 160,585. Redpath, W., and Leeds Forge Co., Ltd. Jan. 2, 1920. Mandrels.-A tube such as a boiler flue to be expanded is centred on a shaft by loosely-mounted self-centring chucks f.
Patent GB-637117-A (GB)
Title: Improvements in or relating to a fastening device
IPC: B27F1/00
Filed: 1947-06-18
Abstract: 637,117. Rivets. OLIVER IRON & STEEL CORPORATION. June 18, 1947, No. 16080. Convention date, Aug. 5, 1946. [Class 89 (i)] [Also in Group XXII] A device for reinforcing a member against splitting, or for connecting together two or more members, particularly timbers, comprises two headed shanks to be inserted from opposite ends of a through hole the shanks being toothed to interlock and the shanks being bent initially so that the toothed portion is inclined to the remainder as shown in Fig. 3. The head 6 has a bevel 12 that may be forced to some extent into the timber to seal the hole against moisture. A taper neck 8 also has the same function. The shank 5 has its end portion of reduced diameter and flattened and on the flat surface undercut teeth 9 are formed. The shank ends in a bevel 11. When two of the devices are inserted from opposite ends of the hole and pressed together the teeth interlock, and the combined diameter of the toothed part of the shank is then greater than that of the part 5.
Patent GB-1028239-A (GB)
Title: Preparation of polyester compositions
IPC: C08L67/02
Filed: 1964-04-17
Abstract: A linear fibre-forming polyester is prepared by polyesterifying a polyester forming mixture containing a slurry of kaolin platelets in a glycol having equivalent spherical diameters of 0.2-7 m  and an (E.S.D.)10% value of 1-5 m , and, as a deflocculant either (1) an adduct of 1 mole of a C8- 25 fatty alcohol and 9-30 mole of ethylene oxide, (2) an adduct of 1 mole of an alkyl substituted phenol and 9-30 moles of ethylene oxide, (3) an alkali metal alkaryl sulphonate, (4) a glycol of formula <FORM:1028239/C3/1> in which R1 and R2 are alkyl groups of 1-4 carbon atoms or (5) an ethylene oxide adduct of (4).  The polyester forming mixture may comprise a dicarboxylic acid and a dihydric alcohol or a hydroxycarboxylic acid.  Dicarboxylic acids specified are iso- and terephthalic sebacic, bibenzoic, hexahydroterephthalic, ethylene bibenzoic and isopropylidene bibenzoic acids 4,41-dicarboxyl diphenyl ether, 4,411-dicarboxylterphenyl and 2,6- and 2,7-naphthalene dicarboxylic acids.  Dihydric alcohols specified are: ethylene, butylene and neopentylene glycols, 2,2 - dimethylbutane - 1,4 - diol, p - bis - (hydroxymethyl) - cyclohexane, p - bis - (2-hydroxyethyl)-benzene, diethylene glycol, p-bis - (2 - hydroxyethoxy) - benzene, 4,41 - bis-(2 - hydroxyethoxy) - diphenyl, 1,4 - dihydroxy-[2,2,2] - bicyclooctane, bisphenol-A, cyclohexane - 1,4 - diol, 4,41 - dihydroxybiphenyl and 4,41 - bis - (hydroxymethyl) - bicyclohexyl. Hydroxyacids specified are: b -hydroxypivalic and hydroxyacetic.  The polyester forming mixture may also contain 0.0001-0.1% of sodium acetate. The composition of the slurry may be such that it contains at least 0.2% of the deflocculant whilst the final fibre product contains up to 10% of kaolinite.  Fatty alcohols specified have 8-25 carbon atoms, e.g. oleyl, decyl, lauryl, cetyl and stearyl. Phenols specified have 5-20 carbon atoms in the alkyl group, e.g. isooctyl, nonyl, p-tert-octyl, diamyl, dodecyl, ethylphenyl, isobutyl and dinonyl phenols, 6 - nonyl - b  - naphthol and 6 - isopropyl-b -naphthol. Sulphonates specified are the sodium, potassium and lithium salts of ethylphenylphenol, dodecyl-benzene, diisopropylnaphthalene 2,4,6 - trimethylnonyl naphthalene and dibutylnaphthalene sulphonic acids. Acetylenic glycols specified are: 3,6-dimethyl-oct - 4 - yne - 3,6 - diol, 2,4,7,9 - tetramethyl-dec - 5 - yne - 4,7 - diol and 4,7 - dimethyl-dec-5-yne-4,7-diol. Adducts of these may have up to 85% ethylene oxide.  The kaolinite slurry may be added before or during polyesterification and a TiO2/glycol slurry may also be added before polyesterification is complete.  In typical Example (1), Sb2O3 was added as a polyesterification catalyst.  In Example (8), the polyester was a copolymer of ethylene glycol, terephthalic acid and the sodium salt of isophthalic acid 5 sulphonic acid.
Patent GB-257231-A (GB)
Title: Boring head or chuck for deep borings
IPC: E21B10/32
Filed: 1926-06-26
Abstract: 257,231. Nohel, J. Aug. 18, 1925, [Convention date]. Borehole apparatus. -A drill head for use in deep-boring has above the boring bits 1<1> circumferentiallyspaced apertures 2, 3 &c. in which cutters 5 are mounted on vertical pivots b, tension springs a normally holding the cutters 5 outwardly so that they enlarge the bore-hole to permit insertion of a casing. Flaps 8 are pivoted to the cutters 5 and form closures for the apertures 2, 3 &c. to prevent escape of flushing liquid. The apertures 2, 3 &c. may also be vertically spaced, and the cutters 5 are then of different sizes, each cutter being smaller than those above it. The cutters have a curved surface 11 to engage the casing and turn the cutters about their pivots on reverse rotation of the drill and so prevent removal of the drill through the casing.
Patent GB-612639-A (GB)
Title: Improvements in shuttles for looms for weaving
IPC: D03J5/08
Filed: 1946-05-28
Abstract: 612,639. Loom shuttles. KIRK & CO. (BLACKBURN), Ltd., and WRIGLEY. H. May 28, 1946. No. 16143, [Class 142 (iii)] A shuttle having a tongue carried by a pin rotatably mounted in the shuttle is characterised in that a solid metal pin or a tubular pin with a continuous surface is employed, the diameter of the hole a' in the head of the tongue for the pin B being slightly less than that of the pin, before the latter is inserted therein, and a slit a being formed in the head of the tongue extending from the hole a' to the rear of the head.
Patent GB-188697-A (GB)
Title: Improvements in and relating to artificial cables for duplex telegraphy
IPC: H04L5/14
Filed: 1921-06-11
Abstract: 188,697. Pernot, F. E., and Eastern Telegraph Co., Ltd. June 11, 1921. Drawings to Specification. Inductances, variable without altering the metallic resistance, are made of low resistance and carry one or more secondary coils shortcircuited through impedance. In an example they are wound on a laminated core with a variable air-gap.
Patent GB-929086-A (GB)
Title: An improved cigarette holder
IPC: A24F13/04
Filed: 1960-05-07
Abstract: 929,086. Cigarette holders. W. W. J. CUTLER. April 19, 1961 [May 7, 1960], No. 16228/60. Class 130. A gold, silver or aluminium holder tube 10, Fig. 1, has press-fitted therein a smoke-cooling element 13 with a cigarette-locating end surface 16. There is a plasticized polythene mouthpiece 17 retaining as by an internal flange a cup 19 locating a filter pad 22. Air enters via diametrically arranged mouthpiece holes or (as shown) V-slots coacting with holes 23 in the tube 10, which has also a ring of holes 12 which, in a double-walled form, Fig. 3, replace the V-slots as inlets for two or more holes 23. The mouthpiece may be moulded to or integral with the tube. According to the Provisional Specification, the element 13 is applicable to tobacco pipes and the mouthpiece may have equiangularlyspaced rectangular-section axial apertures inclined to the tube at 12 degrees and giving the mouthpiece the flexibility of a cigarette.
Patent GB-457786-A (GB)
Title: Manufacture of colouring matters
IPC: C09B47/06
Filed: 1935-06-04
Abstract: Copper, iron, or nickel phthalocyanines are prepared by heating an ammonium phthalate, or an ammonium phthalamate, or a phthalic diamide, or an ammonium o-cyanobenzoate, or an o-cyanobenzamide, with a substance yielding copper, nickel or iron respectively, and an aminosulphonic acid; or by heating, in the presence of a sufficiency of ammonia (free or combined), a phthalic acid or anhydride, or a phthalimide, or an o-cyanobenzoic acid with a substance yielding copper, nickel or iron respectively and an aminosulphonic acid.  The term "aminosulphonic acid" includes aminosulphonic acid (sulphaminic acid), iminodisulphonic acid and their salts and the nitrilosulphonates.  In examples: (1) ammonium phthalate is heated with anhydrous copper acetate or cupric chloride at 240--250 DEG  C. in presence of ammonium aminosulphonate; or with anhydrous cupric chloride in presence of sodium dipotassium nitrilotrisulphonates at 260 DEG  C.; a copper phthalocyanine is obtained; (2) ammonium phthalamate is condensed with cupric chloride at 240--250 DEG  C. in presence of ammonium aminosulphonate; (3) phthalamide is heated with cuprous acetate at 220--240 DEG  C. in presence of aminosulphonic acid or its ammonium salt; or with the cupric salt of aminosulphonic acid at 240--250 DEG  C.; or with anhydrous cuprous bromide at 260 DEG  C. in presence of sodium dipotassium nitrilotrisulphonate; or with anhydrous cuprous chloride at 230 DEG  C., or copper powder at 280--290 DEG  C., in both cases in presence of ammonium aminosulphonate; (4) phthalic anhydride is heated with ammonium chloride, ammonium aminosulphonate and anhydrous cupric chloride at 240 DEG  C.; (5) phthalimide is condensed with anhydrous cupric chloride and ammonium aminosulphonate; (6) ammonium 4.5-dichlorphthalate is heated with anhydrous cupric chloride in presence of sodium dipotassium nitrilotrisulphonate at 260 DEG  C. to give copper octachlorphthalocyanine; (7) ammonium phthalate, phthalic diamide or phthalimide is heated with nickel chloride at 220 DEG  C. in presence of ammonium sulphamate to give a green pigment; (8) phthalic diamide is heated with ferric chloride at 220 DEG  C. in presence of ammonium sulphamate to give a dull green pigment. Reference is made to the use of chlornaphthalene as a diluent in these processes.  Specifications 322,169, [Class 2 (iii)], 389,842, and 410,814 are referred to.