baber/WOPTO huggingface dataset:
Patent GB-181934-A (GB)
Title: Improvements in clutches
IPC: F16D11/14
Filed: 1921-05-21
Abstract: 181,934. Zahnradfabrik Ges., and Sodenfraunhofen, Graf A. von. May 21,1921. Clutches, claw.-In a clutch comprising a pinion a and a toothed ring d adapted to be slidden into engagement with each other, the spaces between the teeth in the ring d are cylindrical and each embraces a plurality of spur-wheel teeth. To facilitate clutching, alternate teeth c, in the spur wheel, may be made more narrow than the other teeth b, and the edges of the teeth, of both clutch members, may be rounded off.
Patent GB-234841-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K27/04
Filed: 1925-05-29
Abstract: 234,841. British Thomson-Houston Co., Ltd.. (Assignees of Bergman, S. R.). May 29, 1924. [Convention date]. Commutating poles and windings.-For preventing sparking at the brushes of a dynamo-electric machine, for example, an alternating-current motor, particularly at low speeds, the commutating pole is excited in such a way as to establish a rotating field. The motor, Fig. 1. has its armature 1 in series with the main field winding 3, compensating windings 4, commutating-pole winding 5 and a polyphase commutating winding 6. The phases 11, 12 of the winding 6 may be supplied with polyphase current from a phase-converter 7 comprising a primary winding 8 in series with the motor armature 1. a secondary squirrel-cage rotor 9, and an auxiliary winding 10. The auxiliary winding 10 has induced therein a current differing in phase from the current in the winding 8. The wind. ings 6 may be located on a core 18, Fig. 2, supported by the commutating pole 15. The singlephase commutating-pole winding 5 may be dispensed with.
Patent GB-1449147-A (GB)
Title: Prostaglandin intermediates method for electro coating metal surfaces with carbon
IPC: C07D307/935
Filed: 1973-09-10
Abstract: 1449147 Prostaglandin intermediates UPJOHN CO 10 Sept 1973 [15 Sept 1972 28 June 1973] 14256/76 Divided out of 1449146 Headings C2C and C2P The invention comprises cyclopenta[b]furans of the formulµ wherein R 3  is -CO-Ph-(T) s , where T is C 1-4  alkyl, phenylalkyl or nitro, and is 0 to 5, provided that not more than two T's are other than alkyl, that when s is 2 to 5 the T's may be the same or different, and that the total number of carbon atoms in the T's does not exceed 10; alkoxycarboxylbenzoyl, naphthoyl optionally substituted in either or both rings by alkyl, phenylalkyl or nitro radicals as defined above; or acetyl; R 4  and R 5  each are H or CH 3 ; R 6  is n-butyl or benzyl optionally substituted by 1 to 3 chlorine atoms, M is or wherein R, is H or CH 3 ; n<SP>1</SP> is or X is -CO- or -CH(OH))- and either R 8  is H in which case R 9  is H or C  -5  alkyl, or R 8  is a blocking group, in which case R 9  is C 1-5  alkyl or the same blocking group. The compounds are obtained by standard methods starting from the appropriate 4α-formyl-5α(or #)-OR 3 - 3,3aα,4,5,6,6aα - hexahydro - 2H - cyclopenta- [b]furan-2-ones. The following intermediates. and starting materials are also prepared: 3#,5#-dihydroxy-2α- methoxymethyl - 1# - cyclo - pentaneacetic acid γ - lactone, 3# - p - toluene - sulphonyloxy- 5# - hydroxy - 2α - methoxymethyl - 1# - cyclopentaneacetic acid γ-lactone, 3α- (and 3#)- benzoyloxy - 5# - hydroxy - 2α - methoxymethyl- 1# - cyclopentaneacetic acid γ-lactone, 3α- (and 3#) - benzoyloxy - 5# - hydroxy - 2α- hydroxymethyl - 1# - cylcopentaneacetic acid γ - lactone, 3α- (and 3#) - benzoyloxy - 2α- formyl - 5# - hydroxy - 1# - cyclopentaneacetic acid γ - lactone, 3# - benzoyloxy - 5#- hydroxy - 4α - iodo - 2α - methoxymethyl - 1#- cyclopentaneacetic acid γ - lactone, 3#,5#- dihydroxy - 2α - (3α- (and 3#) - hydroxy - trans- 1 - octenyl) - 1# - cyclopentane acetic acid γ- lactone, and the bis(2-tetrahydropyranyl) ether thereof, 3#,5# - dihydroxy - 2α - (3α- (and 3#)- hydroxy - trans - 1 - octenyl) - 1# - cyclopentaneacetic acid γ-lactol, bis(2-tetrahydropyranyl) ether, 3#,5# - dihydroxy - 2α - (3 - hydroxy - 3- methyl - trans - 1 - octenyl) - 1# - cyclopentane acetic acid γ-lactone and y-lactol. Dimethyl 2 - oxo - 3 - methylheptylphosphonate, dimethyl 2 - oxo - 3,3 - dimethylheptylphosphonate and dimethyl 2 - oxo - 4 - butylphosphonate are prepared by reacting dimethyl methylphosphonate in the prsence of butyl lithium with ethyl 2-methylhexanoate, ethyl 2,2-dimethylhexanoate and ethyl hydrocinnamate respectively.
Patent GB-396354-A (GB)
Title: Improvements in and relating to resinous compositions
IPC: C08G63/20
Filed: 1933-05-17
Abstract: Resinous products are obtained by the interaction of a dibasic aliphatic acid, a dihydric alcohol, a polybasic aromatic acid, and a polyhydric alcohol.  Dibasic aliphatic acids specified are succinic, malic, maleic, fumaric, glutaric, adipic, pimelic, suberic, azelaic and sebacic acids.  Dihydric alcohols specified are ethylene glycol, diethylene glycol, propylene glycol, and tetramethylene glycol.  The polybasic aromatic acid may be phthalic acid, and the polyhydric alcohol may be glycerol, mannitol or pentaerythritol.  The ratio of dibasic acid and dihydric alcohol on the one hand and polyhydric alcohol and polybasic acid on the other hand may range between 2 to 1 and 15 to 1.  Specification 365,140 is referred to.ALSO:A moulding composition, particularly suitable for extrusion processes, comprises a mixture of uncured and cured flexible alkyd resin, with, if desired, a basic substance such as zinc oxide, barium oxide, litharge, &c., to accelerate curing.  Fillers and other accelerators may also be incorporated.  Such resins are described in Specification 365,140, and comprise the reaction products of dibasic aliphatic acid-dihydric alcohol-polybasic aromatic acid-polyhydric alcohol. Dibasic aliphatic acids included are succinic, malic, maleic, fumaric, glutaric, adipic, pimelic, suberic, azelaic, and sebacic. Dihydric alcohols included are ethylene glycol, diethylene glycol, propylene glycol, and tetramethylene glycol.  Polybasic aromatic acids include phthalic and polyhydric alcohols included are glycerol, mannitol and pentaerythritol.  The ratio of dibasic acid-dihydric alcohol p  and polyhydric alcohol-polybasic acid may range between 2 to 1 and 15 to 1.  In examples 75 per cent of completely cured and 25 per cent of semicured resin (glycol-succinate and glycerol-phthalate in the ratio of 4 : 1) can be extruded to give tubing, wire covering, or can be moulded; 2 per cent of zinc oxide, 75 per cent of cured and 23 per cent of semi-cured resin (glycol-adipate and glycerol-phthalate in the ratio of 2,5 to 1) can be pressed after working on rolls into flat sheets.  Wire coverings from 1/16 in. to 1/2 in. thick, tubes 1/8 in. to 4 1/2 ins. diameter, and tape 1 in. wide and 13 mils. thick are referred to as being made by extrusion. Armature coils may be moulded in the solid bar by covering the wire with the composition, curing it, then extruding a second coating on it, winding, pressing in a mould and, after removal, curing.  The compositions are resistant to corona, to oil, and to water.  Wide sheets, oil-proof gaskets, &c., may be moulded, extruded or calendered.  The proportion of cured resin may range from 60 to 80 per cent, and of uncured from 20 to 40 per cent.
Patent GB-1175427-A (GB)
Title: Improvements in or relating to Delay Equalizers
IPC: H01P1/18
Filed: 1967-03-29
Abstract: 1,175,427. Delay equalizers. COMPAGNIE FRANCAISE THOMSON HOUSTONHOTCHKISS BRANDT. 29 March, 1967 [29 March, 1966], No. 14397/67. Heading H1W. Group delay distortion in a V.H.F. or U.H.F. signal, e.g. a television signal, is corrected by means of a hybrid network having a pair of conjugate ports terminated by equal or opposite reactances in the form of overcoupled resonant cavities. In the example shown, a ring hybrid AH has two conjugate ports 2, 4 connected by lines el, e2 of equal length respectively to identical overcoupled, concentric-line, resonant cavities R1, R2, the coupling to R1 being inductive and that to R2 being capacitative. Such a circuit behaves in the same manner as an all-pass lattice network, an input applied at port 1 being transmitted to port 2 without reflection or attenuation but with a phase shift which varies from 0 to - 360 degrees as the frequency varies around the resonant frequency of the cavities. The rate of variation is determined by the degree of coupling of the cavities. In order to obtain a required delay v. frequency characteristic, a number of such circuits are connected in tandem and the characteristic of each is adjusted separately. The couplings to the cavities R1, R2 may be of the same type, i.e. both capacitative or both inductive, if the distances el, e2 are made to differ by one quarter-wavelength. The arm 3-4 of the ring may either incorporate an inversion I producing a 180 degrees phase-shift or may be one halfwavelength longer than the other three arms. The ring hybrid may be replaced by a directional coupler or by a magic-T.
Patent GB-204739-A (GB)
Title: Improvements in fabric and the like measuring machines
IPC: G01B5/04
Filed: 1922-12-18
Abstract: 204,739. Thornton, A. A., (Vanderveld, A.). Dec. 18, 1922. Measuring.-In cloth-measuring machines having means to stop the rotation of the measuring- roller on the passage of the end of the piece of cloth from the roller, an extension 22, Fig. 5, of a pivoted bar 20 rests during the operation of the machine on the fabric 6 and holds an irregular member 33 in the position shown for maintaining a braking-device acting on the interior of the measuring-roller in its inoperative position. When the end of the fabric has passed from between the measuring-roller 7 and a presser roller 12, the end 22 of the bar 20 falls and a projection 37 of the bar 33 arranged between pins 30 on a cage rotates the latter to stop the measuring-roller. The cage has inclined slots 29, Figs. 4 and 7, for rollers 32, is arranged in the end of the measuring- roller 7, and is mounted loosely on the housing 10 of bearing for the spindle of the roller 7. When the cage is turned into the position shown in Fig. 4, the rollers 32 become wedged between flattened parts 10<a> on the housing 10 and the inner surface of the measuring-roller 7, thereby stopping the latter. When a fresh piece of cloth is inserted into the machine, cam-operated levers 24, 16, Fig. 5, controlled by a handle 19 are adapted to raise the end 22 of the bar 20 and to depress the presser roller 12 simultaneously.
Patent GB-593607-A (GB)
Title: Improvements in arbors
IPC: B23B31/40
Filed: 1945-06-08
Abstract: 593,607. Mandrels. BUESCHER, A., and ARNOLD, C. June 8, 1945, No. 14579. [Class 83 (iii)] An expanding mandrel comprises a cylindrical work-holding body 10 radially slotted as at 15, 16 to allow expansion and a longitudinally adjustable rod 22 having a plurality of axiallyspaced tapered steps, as 25, 24, engaging correspondingly tapered seats 30, 29 in the bore of the body so that the gripping pressure on a work-piece 21 is spread relatively uniformly along its length. The rod 22 is threaded into the unslotted end of the body and extends therefrom to receive a tool for rotating it and also to carry lock-nuts 27, 28 that act as an adjustable stop limiting the extent to which the rod can be screwed in. The other end of the body is also expanded by the engagement of the conical point of the centre 32 with a conical seat 31.
Patent GB-480769-A (GB)
Title: The manufacture of vat dyestuffs of the dipyrazolanthrone series
IPC: C09B5/08
Filed: 1936-05-23
Abstract: Vat dyestuffs of the dipyrazolanthrone series are made by reacting alkali metal salts of dipyrazolanthrone with halogen compounds of the formula Hal-alkyl-O-alkyl, wherein the number of carbon atoms in the two alkyl groups is advantageously not greater than 4, forming the alkali metal salts of the intermediate products so obtained and alkylating.  The products give yellowish dyeings in some cases and their leuco compounds are easily soluble.  In an example, the potassium salt of dipyrazolanthrone is reacted with chloromethylether or chloromethylethylether in dichlorobenzene, the product ground with caustic potash and treated with p-toluenesulphonic acid ethyl (or methyl or propyl) ester; the dyestuffs dye cotton bright red, bluish-red or yellowish-red shades.  Specification 14103/15, [Class 2 (iii)], is referred to.
Patent GB-320869-A (GB)
Title: Improvements relating to the preparation of artificial silk threads and to fabrics woven therewith
Filed: 1928-05-19
Abstract: 320,869. Gahlert, F. J. May 19, 1928. Moistening and sizing yarns in twisting-machines.-The process of treating artificial silk threads described in Specification 283,752 and wherein the thread is softened by moistening and then passed to a mechanical twisting and winding device, is modified in that the thread is thoroughly impregnated with a sizing liquid before being twisted and wound. The thread may also be subjected to tension, during sizing to produce crÛpe effects on fabrics woven therefrom when the fabric shrinks on washing to remove the size. The thread may be wound wet or may be dried before winding. The thread 4 passes from a bobbin 3 over a glass guide 5 to rollers 6, 7, then under rollers 9, 10 in a trough 8 containing the softening and sizing liquid, thence between rollers 11, 12 and is wound by a traveller 14 on the bobbin 15. The rollers 6, 7, 11, 12 are covered with felt, vulcanite or other resilient material, and the rollers 11, 12 may be driven at a greater or at the same speed as the rollers 6, 7 according to whether the thread is to be tensioned or not.
Patent GB-891335-A (GB)
Title: Improvements in or relating to arrangements for the remote control of television receivers
IPC: H03J1/18
Filed: 1958-05-08
Abstract: 891,335. Radio receiving apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 8, 1958 [May 11, 1957; June 17, 1957], No. 14759/58. Class 40(5). [Also in Group XL(b)] Remote control of a function of a television receiver 1 (Fig. 1) is effected by a D.C. voltage derived via a rectifier 8 (contained in a sub-unit 2 mounted adjacent the receiver) from line frequency signals Vi the amplitude of which is controlled by a potentiometer 10 at the remote position and to isolate the device 10 and the connecting cable 12 from the receiver chassis potential (especially in the case of A.C./D.C. mains receivers), condensers 6 and 9, which have a low reactance at the line frequency but a high reactance at the mains frequency are included in series with the cable 12. In the described embodiment the D.C. control voltage is added to the normal brilliance control voltage derived from potentiometer 11 and supplied to the picture tube via resistor 4. Other functions such as volume, contrast and synchronization control may be effected in a similar manner. In a second embodiment, also concerned with brilliance control, the condenser 9 is replaced by an isolating transformer (Fig. 2 not shown).
Patent GB-989713-A (GB)
Title: Improvements relating to heat treatment furnaces
IPC: F27B9/14
Filed: 1964-04-09
Abstract: 989,713. Continuous heat treatment furnaces. W. BECKER. April 9, 1964 [April 29, 1963], No. 14759/64. Heading F4B. A continuous furnace in which coils of steel strip A are conveyed in succession through preheating, heating and cooling stations has hubs B carrying the coils and supported by wire loops C suspended from carriages G running rollers I engaging an I-beam K, the hubs being engaged at the heating stations by journals P of driving shaft N by which the coils are rotated to give uniform heating. The carriages G have a set of teeth L on each side of the web of beam K engaging driver chains and the beam K is lowered by bell cranks to release the loops C prior to engagement of the hubs B by the shafts N. A protective gas circulates continuously between a preheating station, Fig. 9, and an initial cooling station, Fig. 8, urged by a fan T below pipes S in the cooling zone into ducts W, returning from the preheating zone through upper ducts U. The heating station, Fig. 7, is heated by gas fired radiant tubes R or by electric resistances 8 one or more additional cooling stations may be provided at the outlet end of the furnace, Fig. 10 (not shown). Each end of the furnace has an air lock with an outer door, Fig. 9 (not shown), and externally operated double doors separate each station and the final stations from the air lock.
Patent GB-649524-A (GB)
Title: Improvements in and relating to devices for producing phasemodulated ultra-high-frequency oscillations
IPC: H01J25/10
Filed: 1947-06-04
Abstract: 649,524. Phase modulation. PHILIPS LAMPS, Ltd. June 4, 1947, No. 14789. Convention date, June 7, 1946. [Class 40 (v)] [Also in Group XL (a)] The carrier oscillations of a discharge tube of the inductive-output, density-modulated type are phase-modulated by means of a cylindrical electrode 7 situated between the control grid 3 and an accelerating electrode 5. A cavity resonator 8 surrounds the tube and has an output loop 11 and a feed-back connection 9 to the tunable grid circuit. The modulating voltage of 50-80 volts is superimposed on the mean voltage of 500 volts of the electrode 7, the accelerating electrodes carrying 4000 volts.
Patent GB-1302276-A (GB)
IPC: C08L95/00
Filed: 1970-03-26
Abstract: 1302276 Bituminous composition INTERNATIONALE INDUSTRIEBEVORDERING NV and TECHNISCHE INDUSTRIEBERATUNG GmbH 26 March 1970 [28 March 1969] 14823/70 Heading C3N  An adhesive for use in the preparation of asphalt-reinforcing materials comprises bitumen or a mineral wax, an organic solvent, an emuisifier, and an aromatic hydrocarbon resin having an aromatic content of less than 5% by weight, the molecules of the aromatic constituents of the said resin having, on average 3-4 fused rings, the rings carrying aliphatic side-chains each having up to 4 carbon atoms. The bitumen preferably has a penetration value of 50-220. The emulsifier is preferably nonionic, e.g. an ethoxylated fatty alcohol or an ethoxylated vicinus oil, whilst the solvent is preferably ethyl acetate. The weight ratio of bitumen to aromatic resin is preferably at least 1:12. A most suitable adhesive comprises 10-60% by weight of aromatic hydrocarbon resin, more than 30% by weight organic solvent, at least 5% by weight bitumen and at least 1% by weight emulsifier. The adhesive may be produced by melting together the aromatic resin and bitumen, whereupon ethyl acetate and emulsifier are added and the mixture is then allowed to cool with stirring. Reinforcing material such as filaments, loose fibres, multifilaments, small bands, knittings or fabrics of materials such as polypropylene, polyethylene, a polyamide, glass or polyesters may be impregnated by applying the adhesive of the invention and evaporating off the solvent. This impregnated material may then be incorporated into a conventional asphalt mixture consisting of 42% by weight sand (max. size 3 mm.), 53% by weight gravel (3-8 mm.), 5% by weight limestone meal and based on the total mineral 6% by weight bitumen.
Patent GB-233913-A (GB)
Title: Improvements in, or relating to, doors
IPC: E04C2/14
Filed: 1924-06-19
Abstract: 233,913. Dyke, H. June 19, 1924. Door bodies and panels; frames.-A door and frame adapted to be fixed in position as a whole comprises the door a, the jambs or frame e, and une fixed and one loose set of architraves f. The body consists of boards having a tongue-andgroove or like joint secured by means of bolts, rods, &c., b, the ends of which may be covered by wooden plugs &c. The rods may have nuts, or may act as stiffeners only, when the joints can be relied on, or they may have ends which are split or opened by wedge-shaped tools to form tangs penetrating the wood. The jambs are joined at the corners by metal clamps m, Fig. 2, engaging saw cuts in the mitred frame members.
Patent GB-463705-A (GB)
Title: Machine-tools such as employ slip gears
IPC: B23Q5/58
Filed: 1935-10-04
Abstract: 463,705. Machinery guards. HERBERT, SIR A., and LLOYD, A. H. Oct. 4, 1935, No. 14967/36. Divided out of 463,656, [Group XXII]. [Class 80 (iv)] When the door 15 of a casing containing slip gears of an electrically driven machine such as a capstan lathe is raised, a lever 21 is tilted about its pivot 22 and operates a rod 23 and arm 24. The latter is connected to a switch in the energizing circuit of the motor which is thereupon stopped. A spring-pressed plunger 20 holds the door in raised position. In a modified arrangement, Fig. 4, applicable to a milling machine, a door 36 is hinged and carries a catch 38 which, when in the locking position, engages a button 39 of a switch 40 in the winding circuit of a contactor 42 in a compartment 43. The latter is closed by a cover 44 hinged at 45 and having a curved abutment 46 in engagement with a pin 47 on the handle 48 of an isolating switch 49. The cover 44 cannot be opened unless the handle 48 has been turned down to open the switch 49.
Patent GB-277414-A (GB)
Title: Production of new or improved fabrics or articles
IPC: D06Q1/00
Filed: 1926-06-15
Abstract: 277,414. British Celanese, Ltd., Ellis, G. H., and Mann, R. J. June 15, 1926. Designs, producing.-Pattern effects are produced on knitted, woven, or other fabrics or articles consisting of or containing cellulose acetate threads, by the local application of one or more agents and, after drying, subjecting the fabric to a delustring treatment with hot or boiling aqueous media or steam. The locally-applied agents may be chosen to protect the fabric against prolonged action to the delustring treatmemt; or they may hasten the action of the steam or other delustring medium, in which case the parts which have not been treated with the agents retain their lustre. The agents employed are mono or polybasic carboxylic acids of the aliphatic series, their substitution derivatives such as the halogen, amino, and hydroxy derivatives, or mixtures of such acids and derivatives. Formic, acetic, propionic, butyric, chlor-acetic, amino-acetic, glycollic, lactic, citric, and succinic acids are given as examples of the agents. Thickening substances such as starch, gum, or flour are added when the agents are applied by printing.