baber/WOPTO huggingface dataset:
Patent GB-601549-A (GB)
Title: Machine for grinding helical gears and other conjugate helicoidal members
IPC: B23F13/04
Filed: 1945-10-19
Abstract: 601,549. Grinding-machines. NEWTON, E. P. (Gear Grinding Machine Co.). Oct. 19, 1945, No. 27581. [Class 60] A machine for grinding helical gears and.the like comprises a frame and a reciprocatory table mounted thereon, a rotary work holder mounted on said table, a rotary grinding wheel mounted on said frame in operative relation to the work in said holder, means operated by the reciprocation of said table for correspondingly rotating said work holder in opposite directions, and hydraulic pressure means for maintaining a constant and uniform opposing torque on said work holder to take up all backlash in the rotating means therefor so as to maintain substantially the same path of movement relative to said grinding wheel in both directions of reciprocation. An angularly and vertically adjustable grinding wheel G<SP>10</SP>, Fig. 1, driven by a motor G<SP>8</SP>, is mounted on a column G by the side of a base A on which is reciprocable a work-table B carrying the headstock D and a tailstock F<SP>2</SP>. The headstock D includes a centre F<SP>1</SP> on a spindle F, Fig. 3, running through a hollow spindle E with which it is connected through an arm H<SP>2</SP>, on the spindle F, with a dog H' pivoted thereto having a detent H<SP>5</SP> engaging a notch in an index plate H secured to the spindle E. The work centre F<SP>1</SP> is rotated as the work-table B is reciprocated past the grinding-wheel, by rotation of the spindle E by gearing E<SP>1</SP>, E2, E<SP>3</SP>, E<SP>4</SP> actuated by a rack E<SP>5</SP> having a roller E<SP>17</SP>, Fig. 4, mounted at its end, which runs on a bar E<SP>13</SP> pivotally mounted on a table E<SP>9</SP> adjustable on the base A. Backlash is taken up through a gear-wheel J on a shaft J<SP>1</SP> engaging the pinion E<SP>1</SP> on the spindle E and being actuated through a pinion J<SP>2</SP> by a rack J<SP>3</SP> on a piston J<SP>4</SP> in a hydraulic cylinder. This means also tends to rotate the spindle E when the work is moved in the reverse direction and to keep the roller E<SP>17</SP> in contact with the bar E<SP>13</SP>. A pulley I mounted on the spindle E also helps to prevent backlash under the action of a counterweight I<SP>3</SP>.
Patent GB-659041-A (GB)
Title: Bicycles
IPC: B62M1/24
Filed: 1949-10-27
Abstract: 659,041. Cycles; engine-assisted bicycles. RUEGGER, A. J. B. A. Oct. 27, 1949, Nos. 27593 and 27594. Convention dates, Nov. 3, 1948, and Oct. 19, 1949. [Classes 79 (iii), 136 (i), 136 (ii)( and 136 (iii)] A bicycle having a front engine mounted for driving the front wheel through frictional engagement with the tyre has the front and rear wheels supported by one armed forks and a crank gear, to drive the rear wheel comprising crank members operated with an alternating motion through a limited angle and connected to each other by a device whereby one crank member is lifted when the other is depressed. As shown in Fig. 1, the frame comprises a tube 1 secured to the steering column 2, a saddle supporting tube 3 flared at 31 to produce resiliency for the telescopically mounted saddle tube 4. The front wheel is supported by a half-fork 10, and the rear wheel by a half-fork 111. The front wheel is driven by a friction wheel 21 operated by a motor supplied with fuel from a petrol tank 22, situated between the handlebars. A rear member 11 supports a luggage carrier 12 and a spare wheel. A splash guard 16 provided with foot rests is secured to the front tube. The bicycle is pedal assisted through cranks 27, 28. Crank 27 is, as shown in Fig. 3; keyed to a shaft 32 and through a free-wheel 33 operates the sprocket 39 through a member 38. The crank 28 is mounted on a sleeve 34 which is mounted on bearings on shaft 32 operating the sprocket through a free wheel 37. When one crank is depressed the other is raised by means of sun gears 44 and 45 on the shafts 32 and 34 respectively which alternately are rotated by the cranks to engage a planet gear 48 to cause one sun gear to rotate in the reverse direction and so raise the corresponding crank as the other is depressed. The wheel axles are secured to the fork arm at one end and are mounted on ball bearings within a sleeve. In Fig. 6 the rear wheel axle 70 is shown supported on beatings within a sleeve 71 being connected to the hub 78 by pins 77. The hub has flanges 84 and 86 for the spokes and is integral with the brake drum 79. The braking shoes 87, 88 are operated by a lever 89. The brake supporting plate 92 is bolted to a bracket 93 secured to the half-fork 1<SP>11</SP>. For chain tensioning the bolt is slackened. A cap nut 80 fits over the end of the hub sleeve and tightened by a pin applied to the hole 81. Alternately the axle may be mounted within a hub having a key projection engaging a groove in the hub sleeve to secure in position and a cone for clamping the sprocket and an end nut screwing within the hub end. In a modification the sun and planet gearing for the cranks is dispensed with, the cranks are connected by free wheels to a shaft and the cranks are interconnected by a cable passing round pulleys to limit movement to produce reciprocation.
Patent GB-173588-A (GB)
Title: Improvements in dominoes
IPC: A63F9/20
Filed: 1920-09-29
Abstract: 173,588. Hydes, H., and Whitehouse, F. R. B. Sept. 29, 1920. Puzzles.-Dominoes of hexagonal, triangular, diamond, square, oblong, or other shape are provided with lateral compartments adjacent their edges and with a central compartment, the lateral compartments bearing two or more distinctive colours, words, numerals,' representations of objects, or letters arranged in different sequences on the different dominoes of the set. The central compartment of each domino may bear a distinguishing numeral or figure. As shown, a set of nineteen of the dominoes is used as a puzzle wherein the dominoes are to be assembled to form a given figure and in such a way that the contacting sides of adjacent dominoes are of the same colour &c. When the dominoes are made of oblong shape the long sides may each be divided into two compartments, the short sides having one compartment each.
Patent GB-737063-A (GB)
Title: Improvements in or relating to production of metallurgical coke and metallurgical process employing said coke
IPC: C10B57/04
Filed: 1953-10-08
Abstract: 737,063. Coke. GREAT LAKES CARBON CORPORATION. Oct. 8, 1953 [Dec. 5, 1952; April 21, 1953], No. 27665/53. Class 55 (2). Foundry coke is made by forming a.mixture of between 40-75 per cent by weight of petroleum coke having a volatile content between about 5-14 per cent by weight, between about 5-10 per cent by weight of anthracite, between about 10-25 per cent by weight of a hydrocarbon pitch, and the balance of a swelling bituminous coal having a volatile content between about 14-22 per cent by weight, most of the particles of the mixture passing a “ in. screen, and coking the mixture as a deep bed in an indirectly heated, narrow, vertical coking zone at between about 1800-2200‹ F. The hydrocarbon pitch is preferably coal tar or petroleum pitch having a melting point between about 300-400‹ F. and the total amount of pitch and bituminous coal is less than the weight of petroleum coke in the mixture.
Patent GB-414920-A (GB)
Title: Frame or stand for gas stove
IPC: F24C3/02
Filed: 1933-10-07
Abstract: 414,920. Portable gas stoves. SORENSEN, E. L. J., 25, Lollandsvej, Copenhagen. Oct. 7, 1933, No. 27705. Convention date, Oct. 7, 1932. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 9, 1934.] [Class 126.] A portable gas stove is formed from a pair of bars or tubes bent as shown to provide horizontal supports or feet 1, 2 connected by vertical portions to horizontal and radial portions 3, 4 forming a utensil support. The burner is carried by a central support 5, and the gas supply is controlled by a cock 11 with a handle 20.
Patent GB-1043619-A (GB)
Title: Improvements in or relating to expansion and contraction joints
Inventor: MCGREGOR MATTHEW
IPC: E01C23/02
Filed: 1964-07-06
Abstract: 1,043,619. Expansion joints. R. Mc- GREGOR & SONS Ltd. and M. Mc- GREGOR. July 6, 1965 [July 6, 1964], No. 27749/64. Heading E1G. An expansion joint in a concrete road, or like, surface is formed by drawing a vibrating cutter through the wet concrete and simultaneously feeding in a strip of packing to the groove. The cutter comprises a pair of blades supported from a float plate and having a slot between them for bituminous strip fed from a reel on the machine. Screw adjustments are provided for height and transverse positioning of the cutter which is powered by an electrical vibrator.
Patent GB-219852-A (GB)
Title: Improvements in packages for potted bulbs
IPC: B65D5/50
Filed: 1923-11-05
Abstract: 219,852. Gardner, C. E. Nov. 5, 1923. Folding boxes fit. tings, internal; boxes convertible into jardinieres.-A package for potted flower bulbs, adapted also for conversion to a jardiniere, consists of a folding box made from a one-piece blank of cardboard and having means for covering the bulb and means for stiffening or bracing the covering made integral with the package and extending from the top thereof to the covering. A blank A, Fig. 5, comprises panels 10, 13 adapted to form the vertical walls of the package shown in Fig. 8, and a tuck-in flap 14 to retain the closing wall 13. A support 36 carries a cover flap 37, of substantially the same area as the cross-section of the package, adapted to be disposed over the top of the pot 51, Fig. 8, containing the bulb 50 and with an aperture 49 to allow the top of the bulb to protrude. The cover 37 is held in position by a bracing member 42 depending from the top 29, being connected theretn by an extension 40 which is folded about the line 41 into the same plane as the top. The bracing member is slotted at 43 so that the side flaps 45 may be disposed at an angle to the part 42, and it may be stiffened by corrugated paper &c. In a modification. a portion 62 of the flap 14 above the level of the cover 37 may be turned in to form an additional bracing member. To unpack, the bracing member is moved to the back of the package, Fig. 8, and the cover 37 is lifted. The blank A may then be cut along the broken lines 33, 53, 39. the flaps 17, 22, removed, and the remainder folded to form a jardiniere as shown in Fig. 6, the parts 57 - - 61 being turned down inside to strengthen the sides and bottom.
Patent GB-502700-A (GB)
Title: Improvements in or relating to multi-stage thermionic amplifiers
IPC: H03F1/08
Filed: 1937-10-13
Abstract: 502,700. Valve circuits. GENERAL ELECTRIC CO., Ltd., and ESPLEY, D. C. Oct. 13, 1937, No. 27844. [Class 40 (v)] A voltage stabilizer is placed at at least one intermediate point in the common high tension supply of several valves. As shown in Fig. 2 the supply from 37, 38 feeds valves 21-24 over resistors 29-32 respectively and a stabilizer 39 is placed between the feeds to valves 22 and 23. Additional stabilizers may be placed between the feeds to other valves if required, the object being to ensure that current variations in the anode circuits of valves such as 24 do not affect the anode voltages of the earlier valves and'so cause flutter. The stabilizer 39 may be of the form shown in Fig. 1 in which a valve 7 is connected across the circuit the grid of which is biassed so that dV/dE is zero over a considerable range. British Specifications 150,415, 339,851, [both in Class 40 (v)], 373,145, 412,337, 464,553, 487,242, and U.S.A. Specifications 1,912,470 and 1,942,551 are referred to.
Patent GB-1385251-A (GB)
Title: Cutting tool having a locking ping for clamping an indexable  cutting insert to an insert holder
IPC: F16B5/02
Filed: 1972-06-14
Abstract: 1385251 Cutting tools METAL CUTTING TOOLS Inc 14 June 1972 [30 Sept 1971 25 Feb 1972] 27856/72 Heading B3B A cutting tool comprises an indexable, invertable cutting insert, an insert holder and means for clamping the insert to the holder, the insert 14 having a central hole 21 and the holder 11 having an insert receiving recess 13 therein  and the means for clamping the insert in the recess is in the form of a pin 20 having a head portion and a screwed shank portion 27. which engages in a thread bore 24 in the base 15 of the recess and which is inclined at an acute angle to the base 15. The insert is clamped in the recess by the head of the pin engaging in the hole 21 and by rotation of the pin along its inclined axis the head engages the hole 21 to urge the insert into.the base 18 of the recess 9 into abutment with side walls 16 of the recess which correspond to two adjacent sides of the insert. The head portion of the pin is so formed as to engage in  the hole 21 at upper and lower regions on diametrically opposite sides of the hole respectively. The head may have conical or curved surfaces  portions or combination of both to effect paint or line contact in the hole 21. The insert may be supported on a removable seating 17 located between the insert and the base of the recess and may also be provided with resilient retaining washer 45 to locate the seating and maintain its retention in the recess during indexing or inverting the insert. The clamping arrangement described may be applied to turning and boring tools and to milling cutters.
Patent GB-781405-A (GB)
Title: Hydrogenation of unsaturated carbonyl compounds
IPC: B01J8/02
Filed: 1955-09-30
Abstract: Catalysts for use in the hydrogenation of unsaturated carbonyl compounds comprise copper with or without an oxide of an element such as chromium, barium or zinc which acts as a promoter and stabilizer. Such catalysts may be prepared by the reduction of pellets of copper oxide or hydroxide mixed with one or more of the other oxides or the corresponding hydroxides.  Alternatively the catalyst may be prepared by reducing with hydrogen a coating, comprising a mixture of the oxide or hydroxide of copper and of one of the metals specified above, previously deposited on an inactive carrier, such as inert alumina or kieselguhr.  Other copper catalysts may be used, e.g. the product obtained by reducing with hydrogen mixtures of copper oxide and sodium silicate containing, for example, 10-20 per cent of sodium silicate.  In an example unsaturated carbonyl compounds are hydrogenated using as catalyst porous inert alumina tablets coated with a mixture of freshly reduced copper and chromium oxide.ALSO:Ethylenically unsaturated carbonyl compounds are hydrogenated to saturated carbonyl compounds or alcohols or both by a process comprising continuously passing a feed of hydrogen and the unsaturated compound into contact with a hydrogenation catalyst, recycling part of the reacted mixture which has left the catalyst by mixing it with the feed and withdrawing the remainder of the mixture from the system.  Suitable unsaturated carbonyl compounds are, for example, aliphatic aldehydes such as crotonaldehyde, acrolein, methacrolein and 2-ethylhex-2-enal; aromatic aldehydes such as cinnamaldehyde; and ketones such as mesityl oxide, methyl vinyl ketone and methyl isopropenyl ketone.  Preferably a copper base catalyst is used, e.g. a copper catalyst which contains an oxide of an element such as chromium, barium or zinc, which acts as a promoter and stabilizer.  In the examples: (a) crotonaldehyde is hydrogenated in the presence of a catalyst consisting of alumina coated with freshly-reduced copper and chromic oxide, some of the product being recycled, to give a mixture of butyraldehyde and butanol; (b) mesityl oxide is similarly hydrogenated to methyl isobutyl ketone; (c) crotonaldehyde is hydrogenated in the presence of a copper catalyst to give butyraldehyde and butanol, all of the butyraldehyde being recycled to the feed; and (d) crotonaldehyde is similarly hydrogenated to give butyraldehyde and butanol, all of the butanol being recycled to the feed.
Patent GB-725134-A (GB)
Title: Improvements in uprights for use in erecting shuttering
Inventor: SUTCLIFFE ALFRED
IPC: E04G11/14
Filed: 1950-11-16
Abstract: 725,134. Shuttering for casting concrete walls. RAPID METAL DEVELOPMENTS, Ltd. Feb. 5, 1951 [Nov. 16, 1950], No. 28011/50. Addition to 682,870. Class 20 (2). Wall shuttering comprises panels 8, Fig. 3, with slotted flanges 7 supported by channelsection uprights 1 each having slotted flanges reinforced by straps 4, Fig. 1, provided with bolt holes 5 coaxial with corresponding holes in the web 3 of the upright, the panels 8 on each side of the upright 1 being secured thereto flange to flange by clamping devices, as described in the parent Specification, and the web 3 forming a moulding surface of the shuttering structure. Sleeves 13 extending between the bolt holes 5 and corresponding holes in the web 3 receive bolts 10 linking opposite uprights 1. Specifications 725,131 and 725,132 are referred to.
Patent GB-1253897-A (GB)
Title: Offset masters for electrophotographic imaging
Inventor: SPENCER ALEXANDER
IPC: G03G5/147
Filed: 1969-06-03
Abstract: 1,253,897. Electrophotographic offset master. GESTETNER Ltd. 27 May, 1970 [3 June, 1969], No. 28123/69. Heading H1K. [Also in Division G2] An offset master comprises a support sheet bearing an electrophotographic coating of zinc oxide in a resinous base in which said coating is provided with a top layer of basic aluminium formate or basic aluminium acetate. In the embodiment, paper of high wet-strength coated on both sides with a barrier layer, is coated with a solvent dispersion of ZnO, a silicon resin or polyvinylbutyral and a mixture of Rose Bengal and Erythrosin. The coated paper is coated with an aqueous solution of basic aluminium formate and dried at 150‹ C. Phthalic anhydride may be used as a sensitizer. The offset master is allowed to recover its photosensitivity by standing in the dark before it is used.
Patent GB-327419-A (GB)
Title: Improvements in or appertaining to the manufacture of metal dust
IPC: B22F9/04
Filed: 1928-10-04
Abstract: 327,419. Standard Telephones & Cables, Ltd., Chaston, J. C., and Norwood, A. F. B. Oct. 4, 1928. Metal powder.-Metallic dust particularly of magnetic material for use in making magnetic cores, is produced by annealing the powder between two crushing operations. When using an alloy of 80 per cent nickel 20 per cent iron, if 25 lbs. is annealed in a closed box a temperature of 100‹ C. should be employed for one hour followed by cooling in air. The alloy may be embrittled by partial oxidation followed by hot rolling. Cobalt or chromium may also be contained in the alloy. The nickel-iron alloy may be rendered brittle as described in Specification 290,736. Specification 321,957 also is referred to.
Patent GB-475450-A (GB)
Title: Improvements in or relating to darning or like appliances
IPC: D04B17/00
Filed: 1936-10-20
Abstract: 475,450. Darning. MACPHERSON, R. G. Oct. 20, 1936, Nos. 28478 and 29848. Addition to 449,647. [Class 112] The darning appliance described in the parent Specification is modified for application to patterned fabrics so that selected warp threads may be raised above or left below the cross thread. The warp threads a are alternately placed between lugs c<1> and d<1> of plates c and d, and a pin e passed through the lugs. Selected threads are then raised or lowered to pass above or below the cross thread by selectors f, g pivoted on the plates c, d. These selectors are depressed or left by engagement or non- engagement of tongues k pivoted on drums i, j, carried by the plates c, d. The tongues k are previously set to operative or inoperative position according to pattern desired, and are brought into action by revolving the drums. The lugs c<1>, d<1> may be pivoted to the plates c, d for further complications of pattern, selected ones being turned out of operative position.
Patent GB-740947-A (GB)
Title: Improvements in polyvinyl chloride for use in plastisols
IPC: C08F14/06
Filed: 1953-10-15
Abstract: Polyvinyl chloride for use in plastisols is made by polymerizing the monomer in aqueous emulsion to a desired final conversion of monomer to polymer equivalent to 50 to 95 per cent of complete conversion, at a temperature from 40 DEG  to 60 DEG  C. to form a latex having an average particle diameter from 0.35 to 0.9 micron, and at any time between 50 and 95 per cent of the final conversion adding to the reaction mixture 0.1 to 10 per cent, based on the weight of unpolymerized vinyl chloride, of a molecular weight regulator, in such an amount that the intrinsic viscosity of the final polymer is not less than 0.75 measured in cyclohexanone at 30 DEG  C., and after the desired final conversion of vinyl chloride to polymer, removing any unreacted residual vinyl chloride monomer and recovering the polyvinyl chloride from the latex.  The polymerization may be effected in the presence of a small amount of a previously prepared polyvinyl chloride "seed" latex, and the emulsifying agent may be added portionwise.  The polymerization is carried out in the presence of a catalyst, e.g. hydrogen peroxide or potassium persulphate. Specified emulsifiers are sodium laurate and the diamyl ester of sodium sulphosuccinic acid.  Molecular weight regulators mentioned are bromoform, carbon tetrachloride, trichloroethane, bromodichloromethane, dibromochloromethane, ethylene dibromide, 1-bromo-1,1-dichloroethane, 1,2-dibromo - 1,1 - dichloroethane, trichloroethylene, tetrachloroethylene, isobutyraldehyde, ethyl dibromoacetate, ethyl bromomalonate, benzene sulphonyl chloride, p-tolyl sulphonyl chloride, p-bromo sulphonyl chloride, 1,1,1-tribromo-2-methyl propanol-2, allyl bromide, N-chlorophthalimide alkyl iodides, and phenacyl bromide. Specifications 627,265, 630,611 and 634,647 are referred to.
Patent GB-1216092-A (GB)
Title: 5-nitro-2-furfurylideneamino-oxazolidinones and their production
Inventor: HOYLE WILLIAM
IPC: C07D307/74
Filed: 1967-06-21
Abstract: 1,216,092. Nitrofuran derivatives. J. R. GEIGY A.G. 19 Aug., 1968 [21 June, 1967], No. 28542/67. Addition to 1,152,867. Heading C2C. [Also in Division A5] Novel nitrofuran derivatives of Formula I in which R is a C 1-9  alkyl group terminally substituted by a cycloalkyloxy group having 3 to 10 carbon atoms in the carbocyclic ring, the total number of carbon atoms in R not exceeding 12, are prepared by (a) reacting 5-nitro-2- furaldehyde, or a functional derivative thereof, with a compound of Formula II or an acid addition salt thereof, or with a compound of Formula III in which Z is the HO.OH 2 NH- group, a C 1 - alkyl-CO.NH- group or a divalent group = CR<SP>1</SP>R<SP>2</SP> in which each of R<SP>1</SP> and R<SP>2</SP> is C 1-5  alkyl or R<SP>1</SP> is hydrogen and R<SP>2</SP> is C 1-5  alkyl or aryl which may be nitro-substituted or alkyl- and/or halogen substituted; or (b) condensing a compound of Formula IV with a carbonyl-containing ring closure agent; or (c) nitrating a compound of Formula V
Patent GB-483569-A (GB)
Title: Jointing device for tubes of metallic construction
IPC: E04G7/26
Filed: 1936-10-20
Abstract: 483,569. Scaffold clamps ; tubular joints. INNOCENTI SOC. ANON. Oct. 20, 1936, No. 28549. Addition to 426,540. [Class 20 (ii)] [Also in Group XXVIII] A scaffold clamp or tubular joint comprises a central body 21 having semi-cylindrical recesses disposed at different angles to receive the scaffold tubes 34, 35, and hinged clamping members 29 for each tube, the clamping members and the grooves in the central body being provided with recesses 32 to receive shoulders 33 provided on the ends of the abutting tubular members 34, 35. The clamping members are secured by T-headed bolts 31 engaging open recesses in the central body.
Patent GB-881663-A (GB)
Title: Improvements in or relating to gas turbine propulsion units
Inventor: WIBAULT MICHEL HENRY MARIE JOS
IPC: B64C29/00
Filed: 1957-01-29
Abstract: 881,663. Jet propelled aircraft. BRISTOL SIDDELEY ENGINES Ltd. Jan. 29, 1958 [Jan 29, 1957], No. 28549/60. Divided out of 881, 662. Drawings to Specification. Class 4. The subject matter is the same as that of Specification 881,662, but the claims differ. Specification 881, 664 also is referred to.