baber/WOPTO huggingface dataset:
Patent GB-961613-A (GB)
Title: Improvements in vane-type rotary air pumps
Inventor: BRISCOE GEORGE HAROLD
IPC: F01C21/08
Filed: 1962-02-01
Abstract: 961,613. Rotary air pumps. LACY-HULBERT & CO. Ltd. Feb. 22, 1963 [Feb. 1, 1962], No. 3902/62. Heading F1F. A vane-type rotary air pump is characterised by means located within the rotor whereby a force is applied directly to at least one of the major faces of each of the vanes pressing them against the side of their guide slots. As shown at A, the force may be derived from a spring 3 pressing on a vane 1 through a roller 2. Alternatively a leaf spring 9 may be used with a split vane as shown at C. The force may be obtainedby a roller 6 located in a wedge shaped recess so that on rotation of the rotor the roller presses against the side of vane 5. A final modification illustrated at D, shows a bore 11 drilled from the base of the guide slot of the preceding vane 12 to the leading face of the guide slot of the vane 10. As vane 12 approaches top dead centre, it is forced down its guide slot and causes a built up of oil pressure in bore 11 which is applied to the leading face of vane 10.
Patent GB-758848-A (GB)
Title: Improvements in or relating to process for sweetening a sour petroleum naphtha
IPC: C10G27/04
Filed: 1954-02-10
Abstract: Sour petroleum naphtha is sweetened by (a) contacting the naphtha, containing mercaptans and phenols, with aqueous caustic alkali solution, (b) separating naphtha from the aqueous solution, (c) contacting the aqueous solution containing mercaptides and phenolates with free oxygen to convert mercaptides to disulphides, (d) removing disulphides from the aquesous solution, (e) contacting naphtha from step (b) with regenerated solution from step (d) and free oxygen, and (f) separating the sweet naphtha from the aqueous caustic alkali solution.  The treatment of sour thermally cracked naphtha, e.g. naphtha obtained from the thermal cracking of gas oils, is described; the naphtha separated as in (b) above is given an additional treatment (g) with a caustic alkali solution containing phenolates extracted from the sour naphtha.  The combined caustic alkali solutions from steps (b) and (g) are regenerated, separated from disulphides, and recycled partly to (g) and partly to a treatment (h) wherein naphtha separated from step (g) is contacted as in (e) above. The oxidation of mercaptides to disulphides may be accelerated by oxidation catalysts such as di- and trihydroxybenzenes, e.g. hydroquinone.  The disulphides may be extracted with solvents such as hydrocarbon oils, e.g. catalytically cracked cycle oil boiling in the gas oil range.  Caustic alkalis referred to are sodium and potassium hydroxides.  The aqueous solution of step (a) may contain 10-35 per cent caustic alkali and that of step (g) 5-15 per cent free caustic alkali and 10-30 per cent phenolates.
Patent GB-386805-A (GB)
Title: Improvements relating to alternating current telegraph systems
IPC: H04M11/06
Filed: 1932-02-10
Abstract: 386,805. Manual exchange systems. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, CRUTCH, L. S., 15, Mundania Road, East Dulwich, and CHITTENDEN, P. A., 22, Sandtoft Road, Charlton, all in London. Feb. 10, 1932, No. 3982. [Class 40 (iv).] In an A.C. telegraph system over telephone lines, one station is enabled to call the other station by an A.C. emergency signal which disables the receiving instrument and connects telephone instruments. Preferably the invention is applied to a simplex system and the emergency signal also disables the transmitting instrument and replaces it by telephone instruments. The station shown connected to line LL comprises a telephone set TE and telegraph apparatus consisting of key contacts KC, transmitting oscillator LO, receiving amplifier A and rectifier RA connected to a valve VC, resistance R and the teleprinter magnet coils M as in Specification 386,743, [Group XL]. A band-stop filter BS, which passes frequencies outside the normal telegraphy frequency range, connects the rectifiers RA, RB, the latter of which is connected to the emergency signal relay A. Key SK is normally thrown so that with SP unoperated the telephone set is connected to line. Emergency signal. The circuits are connected for telegraphy, SK being normal. The calling operator actuates key CK, operating relay CL which short - circuits KC, inserts condenser C2 in LO to change the frequency to one outside the telegraphy range, and disables the local teleprinter. After a short interval the calling operator releases key CK and operates key SK to substitute his telephone TE for the teleprinter TP and oscillator LO. At the called station, the emergency signal of frequency outside the telegraphy range passes to the rectifier RA, through the band-stop filter BS to the rectifier RB actuating relay A, which rings a bell and operates CO, which locks up and opens the teleprinter circuit TP. On cessation of the emergency signal, the relapse of A operates CA which locks up, lights a lamp, and switches over to the telephone set, a high impedance coil RE being connected across the line to hold the exchange apparatus. To restore teleprinter conditions, the calling operator releases key SK to energize the relay SP while the called operator momentarily operates key CK to energize relay CL. The emergency signal may comprise a prolonged signal within the telegraphic frequency range.
Patent GB-854569-A (GB)
Title: New derivatives of lysergic acid
IPC: C07D/
Filed: 1959-02-04
Abstract: The invention comprises 1-methyllysergic acid 11-hydroxybutylamide-21 and its acid addition salts, and the preparation thereof by treating lysergic acid 11-hydroxybutylamide-21 with an alkali metal amide and the resulting alkali metal salt with a methylating agent, said treatments being effected in liquid ammonia.  An example describes the preparation of 1-methyl-D-lysergic acid 11-hydroxy-(+)-butylamide-21, which has a serotonin inhibiting effect.
Patent GB-1386381-A (GB)
Title: Production of vicinal diols
IPC: C07B61/00
Filed: 1973-01-26
Abstract: 1386381 Terminal vic diols; hydrolysis of epoxides DEUTSCHE GOLDUND SILBERSCHEIDEANSTALT 26 Jan 1973 [27 Jan 1972] 4028/73 Addition to 1338196 Heading C2C Terminal vic glycols are made by hydrolysing water insoluble C 8-30  1,2-epoxides with water with vigorous stirring in the presence of at least one alkaline compound at 210-300‹ C.
Patent GB-109745-A (GB)
Title: Improved Bunsen Burner.
Inventor: WALKER OTTO
IPC: F23D14/06
Filed: 1917-03-20
Abstract: 109,745. Walker, O., and Jõggli, H. Jan. 15, 1917, [Convention date]. Atmospheric gas burners.-A partition having a funnel-shaped central orifice h positioned opposite the gas nipple d is arranged between the primary mixing-chamber c and the mixing-tube b, which is enlarged stepwise, each enlargement l, m communicating directly with the mixing-chamber c through inclined passages i, k. An internally screwed sleeve c having air inlets f connects the nipple d with the mixing-tube b, so that the distance between the nipple d and the central orifice h can be adjusted, and additional air inlets g are arranged parallel to and around the nipple d.
Patent GB-651804-A (GB)
Title: Improvements in or relating to cartons, bags and the like
IPC: B65D33/02
Filed: 1948-02-12
Abstract: 651,804. Cartons; paper and like bags. LEMON, H. L., and MACKINTOSH & SONS, Ltd., J. Feb. 12, 1948, No. 4123. [Classes 18 and 94(ii)] A container comprises a base portion 1 consisting of a bottom and side and end walls made of cardboard or other relatively stiff material and an upper tubular portion 2 of relatively thin flexible  material which may be transparent. The upper portion is secured to the inner or outer face of the base portion and extends partly or completely thereover, and the end walls of the base portion have upwardly directed pointed parts 7 for strengthening the lower ends of the upper portion. The end walls may be provided with vertical fold lines 6 to facilitate collapsing of the container prior to use. In a modification the upper portion is secured inside the base portion and extends through the lower end thereof, to enable said extension to be sealed and to be tucked into the base portion prior to closing of the floor flaps of the latter. Specification 600,523 is referred to.
Patent GB-435241-A (GB)
Title: Improvements in and relating to shaft bearings
IPC: F16C23/04
Filed: 1935-02-08
Abstract: 435,241. Cylindrical journal bearings ; lubricating. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London. Feb. 8, 1935, No. 4140. Convention date, Feb. 8, 1934. [Classes 12 (i) and 12 (ii)] In a bearing arrangement for coaxial oppositely revolving shafts 1, 2, the inner one of the shafts is mounted in a bushing 3 carried by the outer shaft 2 and the latter rotates in a sleeve 4 universally mounted in a stationary bearing box 5, the centres of the bearings being axially coincident. The bushing 3 may also have spherical parts, as shown, for self-aligning purposes. The bushing 3 may be carried in a bushing 6 and the latter and the shaft 2 may have flanges 7, 8 secured together. The bearings may be lubricated by a gear wheel pump driven by a toothed wheel 10, the oil being fed to the bush 3 through a duct 11 from an annular oil groove 12 in the sleeve 4.
Patent GB-806634-A (GB)
Title: Process for the manufacture of salts of sulphuric acid esters of leuco vat dyestuffs of the anthra-quinone series
IPC: C09B9/02
Filed: 1955-02-11
Abstract: Water-soluble salts of sulphuric acid esters of leuco vat dyes of the anthraquinone series which are difficult to esterify as defined in Specification 719,621, are esterified by treating the vat dye in a mixture of diethylcyclohexylamine and/or at least one diethyl-(monomethyl-cyclohexyl) amine and at least one inert liquid diluent having a dissolving or dispersing action on chlorsulphonic acid addition products of the said amines, the said mixture containing 30-90 per cent of the amine or amines, and in the presence of at least one finely divided metal, with chlorsulphonic acid in the form of its addition products with the said amine or amines, and converting the resulting sulphuric ester compound into a water-soluble ester salt.  At least 1.4 mols. amine are used per 2 mols. chlorsulphonic acid, except that if less than 4 mols. acid are used, at least 2 mols. amine is necessary.  At least 1.5 atomic proportions of metal are necessary for each anthraquinone nucleus in the vat dye.  The metal may be activated according to Specification 766,638.  Oxygen may be excluded.  In examples, chlorsulphonic acid is added to a mixture of diethylcyclohexylamine and 1.2 - dichlorethane in presence of brass, iron, copper, cobalt or zinc and the following are added: (1) 1.5- or 1.4-dibenzoylaminoanthraquinone; (2) the anthrimide from 1.3 - dichloro - 2 - methyl - anthraquinone and 1.4 - monobenzoyl - diamino - anthraquinone, (3) 1 - benzoylamino - 4 - (41 - dimethylsulphonamido) - benzoylaminoanthraquinone, (4) 1 - benzoylamino - 4 - methoxy - anthraquinone, (5) carbazolized di - (51 - benzoylamino - 11 - anthraquinonyl1 - 2,8 - diaminochrysene, (6) 1 - benzoylamino - 5 - chloranthraquinone, (7) 2.5.6.7.8 - pentachloro - 3,4-phthalyl - acridone, (8) 2.5.7 - trichloro- 3,4-phthalyl - acridone, (9) 2 - p - chlorbenzoylamino - 3.4 - phthalylacridone.  Other inert diluents specified in examples are n-butyl chloride, sec.-butyl chloride, tert.-butyl chloride, chloroform, acetone, dioxane, trichlorethane, n-propyl bromide, sec.-butyl bromide, toluene, monochlorbenzene, o-dichlorbenzene, xylene, or nitrobenzene, and the use of methyl homologues of diethyl-cyclohexylamine.  Other inert diluents specified are tetrachlorethane, n-propyl chloride, sec.-butyl bromide, tert.-amyl chloride, acetonitrile, benzene, benzene.  Specification 745,365 and 745,368 also are referred to.
Patent GB-607756-A (GB)
Title: A process for the manufacture of moulded synthetic resin articles
IPC: C08L27/02
Filed: 1946-02-11
Abstract: Moulded articles, such as dentures, are prepared from compositions consisting wholly or mainly of polymethyl methacrylate and a copolymer of methyl methacrylate with a vinyl halide, the copolymer containing 60 to 75 per cent by weight of vinyl halide.  The process of manufacture is preferably that in which a mixture of monomeric methyl methacrylate and the copolymer is put into the mould which is then heated, thereby polymerizing the monomer.  An example describes a copolymer of methyl methacrylate and vinyl chloride, prepared in emulsion, which is ground, mixed with colouring matter and benzoyl peroxide and made into a paste with methyl methacrylate.  The moulding is then effected (see Group V) and the articles may finally be ground and polished.ALSO:Dentures are moulded from compositions comprising monomeric methyl methacrylate and a copolymer of methyl methacrylate and a vinyl halide, the copolymer containing 60 to 75 per cent by weight of vinyl halide.  The mixture is worked into a mass containing a little colouring matter and benzoyl peroxide and introduced into a plaster dental mould, the surface of which has been treated with waterglass solution.  The mould is closed and pressed and excess filling removed.  The mould is then heated to 100 DEG C. in water thereby polymerizing the monomer and forming the article which may finally be ground and polished.
Patent GB-797822-A (GB)
Title: Improvements in or relating to semi-conductor junction diodes
Inventor: LITTERICK JAMES GRIERSON
IPC: H01L29/00
Filed: 1956-02-10
Abstract: 797,822. PN junction devices. STANDARD TELEPHONES & CABLES, Ltd. Feb. 10, 1956, No. 4261/56. Class 37. A rectifier comprises a PN junction Ge die electrically connected to a metal mounting, a metal member held by a glass seal in the mounting, a further member electrically connecting the die and member, and a metal cap which, with the mounting, forms an enclosure for the Ge die which is filled with inert gas. In the Fig. 2 embodied, the die 1, plug 2 and wire 17 are soldered together to form a subassembly which after etching and testing is fitted into mounting 21 as shown. Wire 17 is then welded to terminal wire 5 which is insulated by sleeve 7 and glass sealing bead 16 from the mounting. Metal cap 18 is afterwards sealed to a ferrule 19 on the mounting in an inert gas. An alternative method of assembly is to fix the plug and wire to the mounting and terminal respectively and then to solder the die in place. In a further embodiment (Fig. 1) a strip 4 replaces wire 17 and cap 8 is welded to an annular disc 14 on the mounting. A cooling fin 9 is insulated from the mounting by washer 13 and brush 12. The junction in the die may be produced by fusing In to an N type Ge slice or by evaporation of Au on to such a slice followed by a diffusion heating as described in Specifications 753,133 and 753,140. A suitable die may also be produced from a crystal grown in a melt the composition of which is changed from N to P type during the growth.
Patent GB-705534-A (GB)
Title: Improvements relating to suspension arrangements for engines or power units in motorvehicles
IPC: B60K5/12
Filed: 1949-09-30
Abstract: 705,534. Motor vehicles. NALLINGER, F. Sept. 30, 1949 [Oct. 1, 1948], No. 4307/52. Divided out of 705,490. Drawings to Specification. [Classes 79(3), 79(4) and 79(5)] The subject-matter of this Specification is substantially the same as that described in Specification 705,490, which is referred to, but the claims differ.
Patent GB-1035601-A (GB)
Title: Process of producing cross-linked graft polymers of vinyl chloride
Inventor: HARDT DIETRICH
IPC: C08F291/18
Filed: 1965-02-01
Abstract: Graft polymers consisting of (1) 25 to 67% by weight of an ethylene-vinyl acetate copolymer containing 20 to 80% by weight of vinyl ester units, and graft polymerized thereon, (2) 75 to 33% by weight of a copolymer containing 55 to 95% by weight of vinyl chloride units and 45 to 5% by units of at least one polymerizable vinylidene monomer, are cross-linked either (A) by mixing them with 0.5 to 10% by weight of an organic peroxide decomposing substantially completely at temperatures from 40 DEG  to 180 DEG  C. and heating the mixtures at temperatures from 40 DEG  to 180 DEG  C. and above that at which the organic peroxide decomposes, or (B) by exposing the graft polymers to high energy radiation in the absence of an organic peroxide.  The cross-linking may be carried out in the presence of cross-linking monomers, e.g. polyallyl esters.  The examples describe cross-linking processes using the following materials:  (a) graft polymers derived from ethylene-vinyl acetate copolymers on which have been grafted mixtures of vinyl chloride with one or more of vinyl acetate, ethyl acrylate, 2-hydroxy-n-propyl methacrylate, n-propyl and n-dodecyl hydrogen maleates, vinylidene chloride and n-butyl methacrylate, (b) benzoyl, cumyl and tert.-butyl cumyl peroxides and dicyclohexyl peroxydicarbonate, and (c) triallyl cyanurate.
Patent GB-110483-A (GB)
Title: Improvements in and relating to Traction Connections for Automobiles.
Inventor: GILL HUBERT ALEXANDER
IPC: B60P3/42
Filed: 1917-03-26
Abstract: 110,483. Gill, H. A., (Staude Manufacturing Co., E. G.). March 26, 1917. Axles and axle structure. - For converting a motor-vehicle into a tractor for agricultural or other purposes the driving wheels are removed and internally toothed wheels driven by pinions on the driving axle are attached by a removable frame pivoted to the chassis. In the form shown, the frame carries a bolster supporting the front of a two-wheeled trailer. The toothed wheels 21 are carried on an axle 18 attached to the pivoted frame 11 'by bolts 19 and distance pieces 17, Fig. 2, which are reversible to enable different-sized driving pinions to be used. The frame carries the driving-axle by means of brackets 26. The axle 18 is provided with a slidable draughtcoupling for ploughs, harrows, &c. For taking a trailer a bolster 28 having a removable bolster plate is provided and a king holt is passed through the bolster and tongue 33 into a socket in the axle.
Patent GB-484619-A (GB)
Title: Improvements in the manufacture and production of resins soluble in spirit
IPC: C09F1/00
Filed: 1937-02-13
Abstract: Spirit-soluble resins are prepared by esterifying colophony, or the resin acids contained therein, with 1.1.1-trimethylol-propane. Acids, such as boric acid or maleic acid, may be used as accelerators.  The resins obtained are compatible with drying oils and with nitrocellulose.  1.1.1-Trimethylol-propane may be obtained by condensing one molecular proportion of butyraldehyde with three molecular proportions of formaldehyde by means of calcium hydroxide solution.
Patent GB-1424234-A (GB)
Title: Imaging system
IPC: G03G17/08
Filed: 1973-01-29
Abstract: 1424234 Manifold imaging member; electrophotography XEROX CORP 29 Jan 1973 [1 Feb 1972] 4402/73 Headings G2C and G2H A manifold imaging member comprises an imaging layer comprising particles of alpha metalfree phthalocyanine greater than 1 micron in size and uniform to within 5 microns, the layer being sandwiched between a donor member and a receiver member. The imaging member may be for mono-chromatic use or contain two or more pigments for polychromatic use e.g. a yellow naphthafuran pigment in addition to the cyan phthalocyanine. Mono-chrome agglomerates of particles may be formed, using as a binder a mixture of paraffin wax and polyethylene or a low melting point hydrocarbon e.g. eicosane, and the mixture coated on polyethylene terephthalate sheet as the donor member. The receiver member is a polystyrene sheet which is attached by spraying'the layer of dispersion with a solvent and pressing the receiver member thereon. In one embodiment a layer of polymeric substances is provided on the donor member, a mono-grain layer of agglomerate particles placed on the polymer layer and the particles pressed into the layer using the receiver member. In another embodiment one or both members may be coated with an adhesive layer of polystyrene prior to coating with the dispersion of particles. The dispersion of particles is thus "cemented" in place for storage purposes by coating the dispersion with an organic solution of polystyrene prior to providing the receiver member. The "cement" is dissolved prior to imaging by removing the receiver member, brushing with petroleum ether and replacing the receiver member. The dispersion may be liquefied before, during or after imagewise exposure of imaging member. Many materials suitable for use as donor or receiver members, polymeric matrix, the adhesive layer and the cement are specified. The donor and the receiver member have conductive layers adjacent them.
Patent GB-524898-A (GB)
Title: Improvements relating to sectional cabinets and shelving therefor
IPC: A47B87/02
Filed: 1939-02-10
Abstract: 524,898. Sectional cabinets. STEDMAN, J. S. Feb. 10, 1939, No. 4408. [Class 52 (i)] A sectional storage or display cabinet comprises two or more similar units adapted to be placed one in front of the other in register forwardly to extend the shelf depth, and having interlocking means to enable the units to be anchored together. Further units may be placed or top. In Fig. 6 is shown a rear or wall unit of the cabinet embodying a shelf 17, slides 13, 20 and dovetail recess 22. A similar unit may be added above it by sliding the lower slide of the additional unit on to the slide 13. A front unit, Fig. 9, may be added to the front in order to double the depth of the shelf, by lowering a dovetail projection 24 secured to a partition 28, into the recess 22, Fig. 6. As the attachment of the front sections is effected by a vertical movement the slides at the top and bottom are omitted. The shelf 17 of the rear unit projects into the front unit to impart lateral stability to the combined units. Instead of dovetail connections 22, hook and eye or keyhole-slot connections may be used. Further units may be similarly added. The rear units may be substantially identical with the front units and may be similarly assembled instead of employing the slides 13, 20.
Patent GB-114338-A (GB)
Title: Improvements in and connected with Visual Weather Screens.
Inventor: NORMANVILLE SAMUEL AUGUSTINE D
IPC: B60S1/02
Filed: 1917-03-27
Abstract: 114,338. Normanville, S. A. de, and Kent, L. H. March 27, 1917. Look-out shelters and wind-shields.-In order to preserve the transparency of a portion or the whole of an existing window, look-out aperture, or weather-screen for motor-vehicles or motor-boats, a disk of transparent material of the type which is adapted to be rapidly rotated so as to throw off moisture, dust, &c., is arranged to be detachably mounted on a pedestal in front of the screen, &c. In the construction shown in Fig. 1, the pedestal 2 carries a small electric motor 3 in its base, and is adapted to be attached to a support 4 on the lower bar 5 of the screen 6 by a clamping-ring 7, so that the pedestal, motor and rotary disk 26 can be readily dismounted and stored away. The disk 26 is driven from the motor shaft through a clutch 19, shaft 18 and bevel gearing 24, 25, and the act of mounting the pedestal on its support closes the motor circuit through contacts 10, 12 carried respectively by the support and the pedestal. In order to prevent moisture &c. from penetrating between the disk and the screen, a metal guard 29 preferably of semicircular or almost completely circular form and having a rubber edging 30 to contact with the screen 6 is mounted by spring wires on the pedestal 2. In a modification shown in Fig. 4, the disk 26 is rotated through the shaft 18 from a flexible shaft 35 driven off the usual driving-gear of a ,speedometer, and the pedestal is made in two parts 2, 32 so that the disk 26 and upper part 32 are readily detachable. Brushes 37 may be attached to the disk so as to flick off any moisture or dirt tending to run down the face of the screen. In a further modification, the height at which the rotary disk is positioned is alterable by making the shaft 18 telescopic and by adjusting the height of the upper part 32 of the pedestal by a screw-and-nut mechanism.