baber/WOPTO huggingface dataset:
Patent GB-773455-A (GB)
Title: Process for the production of ethers of polyglycols
IPC: C08G65/337
Filed: 1955-04-15
Abstract: Saturated vinyl ethers of polyglycols useful as synthetic lubricants because of their narrow viscosity ranges over wide temperature ranges are produced by saturating under pressure with acetylene the product obtained by reacting an alkali dissolved in a volatile alcohol with the high molecular weight condensate produced by reacting ethylene oxide or propylene oxide with an alcohol and hydrogenating the ether obtained.  The vinyl ether has the formula CH2=CH-X-O-Y, wherein X is an oxyethylene or an oxyisopropylene group, n is a whole number and Y is an aliphatic or aromatic group or a vinyl group or a group having the formula -R-O-Zm=CH2, where R is an aliphatic or aromatic group, Z has the same meaning as X and m is a whole number.  Suitable alcohols are allyl alcohol, n-butanol, ethylene- or diethyleneglycol monoethyl- or butyl-ether, dodecanolethanol, 2-ethylhexanol, 2-ethylbutanol, castor oil, hydrogenated castor oil, heptadecanol, hexanol, octadecanol, isobutanol, isopropanol, methanol, sec. butanol, tetradecanol. Polyhydroxy compounds are glycols, glycerol, 2-ethyl-1,3-hexanediol.  In examples: (1) 1 mol. 2-ethyl-1,3-hexanediol is reacted with 14 mols. propylene oxide at 110 DEG  C. and 60 p.s.i.g. for 10 hours to give a condensate having a m.w. of 956 and viscosity 359 SUS. at 100 DEG  F.  The product is heated in a reactor with 10 per cent solution of potassium hydroxide in methanol.  Methanol and water are removed as distillate nitrogen being passed through to remove last traces. Acetylene is then introduced at 165 DEG  C. until the amount introduced corresponds with absorption of OH groups in the starting material; the mixture is neutralized with CO2 and is then hydrogenated at 70 DEG  C. and 200 p.s.i.g. in presence of a Raney catalyst.  (2) The condensate treated is the condensate of butanol and 16 mols. propylene oxide.  (3) The condensate is that obtained by reaction butanol with a 50/50 mixture of propylene and ethylene oxides.  Tables are given illustrating the difference in the reaction product obtained by adding the KOH (a) in pellets to the h.m.w. starting material, (b) the alkaline material being added in methanol solution according to the invention and also the improved results obtained by neutralization of the product with CO2.ALSO:Ethers of polyglycols, mineral oils, which ethers have lubricating properties and are mixable with, are produced by saturating with acetylene under pressure the products obtained by reacting an alkali dissolved in a volatile alcohol with a high molecular weight condensate, produced by reacting ethylene- or propylene-oxide with an alcohol, and hydrogenating the vinylethers thus obtained to saturate the vinyl groups.  The vinyl ethers have the formula CH2 = CH-Xn-O-Y where X is an oxy-ethylene or -propylene group, n is a whole number and Y is an aliphatic (e.g. vinyl) or aromatic group or a group having the formula -R-O-Zm-CH = CH2 where R is an aliphatic or aromatic group, Z has the same meaning as X and m is a whole number.
Patent GB-832381-A (GB)
Title: Method of dispelling fog and composition therefor
IPC: E01H13/00
Filed: 1957-04-03
Abstract: A method of fog-dispersal comprises the spraying into the fog of a composition containing a wetting agent and an aerosol of silica or alumina.  The composition may be an aqueous dispersion of the aerosol which may include a peroxide, such as hydrogen peroxide, and a colloid such as bone glue.  The decomposition of the hydrogen peroxide may be inhibited by the inclusion of phosphoric acid or a sodium phosphate and anti-freezing agents such as alcohols may also be included.  The wetting agent may be anionic such as an alkyl-aryl sulphonate (e.g. dodecyl benzene sulphonate), cationic or non-ionic. The percentage composition (by weight) of the dispersion is 50-90% of wetting agent and 50-10% of oxide.  The hydrogen peroxide solution of 30-35% strength (by volume) may be added in the proportion of 10-50 parts by weight of solution to 100 parts of wetting agent.  Spraying may be by mobile crop-sprayers or by aircraft.  Reference has been directed by the Comptroller to Specification 777,700.
Patent GB-1184329-A (GB)
Title: 4-(2-Carboxy-1-Benzalimino)-1,5-Dimethyl-2-Phenyl-3-Pyrazolone, Organic and Inorganic Derivatives Thereof and Process for Producing the Same
IPC: C07D231/48
Filed: 1969-02-28
Abstract: 1,184,329. 4 - [2 - Carboxy -1 - benzalimino]- 1,5 - dimethyl - 2 - phenyl - 3 - pyrazolone. LABORATORI BIOCHIMICI FARGAL PHARMASINT S.p.A. 28 Feb., 1969 [28 Feb., 1968], No. 10948/69. Heading C2C. Novel salts of methylglucamine, diethylaminoethanol, dimethylaminoethanol, diethanolamine, diethylamine, Na, K, Ca, Mg, ammonium and substituted ammonium with the novel acid of formula which is prepared by reacting the compounds of formulµ are prepared from the appropriate base and the acid. Pharmaceutical compositions having antiphlogistic, anti-inflammatory and anti-algetic activity and in conventional forms for parenteral administration contain an above novel compound as active ingredient.
Patent GB-417865-A (GB)
Title: Improvements in or relating to means for collecting the dust produced when boring rock or the like
IPC: E21B21/015
Filed: 1933-04-12
Abstract: 417,865. Rock drills. AMALGAMATED ANTHRACITE COLLIERIES, Ltd., Eagle Chambers, Swansea, DAVIES, D. R., and DAVIES, J., Ammanford Colliery, Carmarthenshire. April 12, 1933, No. 10949. [Class 124.] A dust-collecting hood for a rock drill has a casing 1 with a projecting arm 1<b> of Venturi form provided with an air jet 2. The end of the casing remote from the rock face is closed by semicircular blocks of rubber surrounding the steel and enclosed in pivoted members 12. A dust tight joint on the lateral face of these blocks is obtained by adjustment of the nut 17.
Patent GB-1166525-A (GB)
Title: Method and Apparatus for Increasing the Filling Properties of Cut Tobacco especially in Cigarettes
Inventor: RIEGGER ULRICH
IPC: A24C5/60
Filed: 1967-03-08
Abstract: 1,166,525. Treating tobacco in cigarettes &c. HAUNI-WERKE KÍRBER & CO. K.G. 29 Jan., 1968 [8 March, 1967], No. 10950/67. Heading A2C. In a method for increasing the filling property of cut tobacco in cigarettes, the cigarettes are subjected to. an electric field which exerts an aligning force on the tobacco particles of the cigarettes and/or a radially outwardly directed force on the wrappers of the cigarettes. The electric field lines extend in a direction having at least a component normal to, and preferably they extend perpendicularly to, the longitudinal axes of the cigarettes. Apparatus is described in which (a) cigarettes pass between two opposed insulated electrodes located in a duct from which they are fed from a continuous rod cut-off to a suction conveyer drum, (b) cigarettes pass between two opposed insulated electrodes located in a pneumatic conveyer tube, and (c) cigarettes are transferred by a suction drum the holding grooves of which each include two opposed insulated electrodes along their lengths; the electrodes in each case being connected to a high voltage direct current source, continuously in the first two cases, and over a restricted segment of the drum's rotation in the latter case. The application of the invention to cigars or cigarillos is also mentioned.
Patent GB-293015-A (GB)
IPC: C12P39/00
Filed: 1928-04-13
Abstract: 293,015. Deutsche Hydrier Werke Akt.-Ges., (Assignees of Bakonyi, S.). June 30, 1927, [Convention date]. Bacteria. cultivating. - In biochemical processes, particularly fermentation, natural mixed cultures of bacteria, which have been submitted to one or more selection processes bv being allowed to grow in contact with a small quantity of the desired product to select such organisms found to be most resistant to said product, are used. This selection mav be followed bv a microscopic investigation and selection. the organisms are fixed on suitable solid nutrient substrata or carriers. No heating should be used, which would kill the non-sporiferous forms. Filter bodies of slag or broken bones are enriched with the cultures and the materials to be treated arepoured upon the said filter bodies.
Patent GB-289025-A (GB)
Title: An improved appliance for opening cans or tins
IPC: B67B7/46
Filed: 1928-04-13
Abstract: 289,025. Partzsch, W. April 20, 1927, [Convention date]. Opening by cutting.-An appliance for opening cans comprises a gripping and centreing device on the central shaft of which a cutter arm is pivotally mounted. The gripping device comprises three claws e each pivoted at g, h, i so that upon downward pressure being applied to the head f of the tubular member c they are moved inwardly into the positions shown in dotted lines to grip the can. The tubular part c is normally maintained in the raised position by means of a spring d coiled round a rod b, upstanding from a triangular base, about which the arm carrying the cutter a can turn for a limited movement. To render the device suitable for use with different sizes of cans additional holes m, n are provided for the pivot pins h, i.
Patent GB-1166145-A (GB)
Title: Saw tooth
Inventor: JNR ROBERT FERGUSON STEVENS
IPC: B23D61/06
Filed: 1967-03-08
Abstract: 1,166,145. Sawing. R. F. STEVENS. 30 May, 1968 [8 March, 1967], No. 10990/67. Heading B5L. A sawtooth comprises a cutting edge 3 formed by the intersection of a front face 4 and a top face 2, the front face being provided with a depression extending over part of its width and along its entire length in a direction normal to the cutting edge. The top face 2 forms an angle of substantially 10 degrees with a tangent to the cutting circle of the saw and between 35 to 60 degrees with the front face 4 in which is the concave depression 5 between shoulders 6. The shoulders may be flat or form parts of a second concave shape. The tooth may be inserted in a bit 8, or be integral with the bit or the blade of the saw and may be coated with hardened material. The depression may be concave or V-shaped, a radius being formed at the intersection of the faces of the V.
Patent GB-1501231-A (GB)
Title: Conferencing systems
IPC: H04M3/42
Filed: 1975-03-18
Abstract: 1501231 Conference systems WESTERN ELECTRIC CO Inc 18 March 1975 [22 March 1974] 11109/75 Heading H4K In a conference system for interconnecting a plurality of 2-wire communication devices, e.g. PBX stations S1-Sn and trunks T1-Tn, each device having associated therewith a hybrid 10-1 ... 10-n, 11-1...11-n, the hybrids are arranged in two groups, any member, e.g. 10-1, of the first group imparting one polarity to a transmission signal reflected therefrom, while any member, e.g. 11-1, of the second group imparts the opposite polarity to a transmission signal reflected therefrom. It is shown in the Specification that such an arrangement of hybrids reduces the possibility of oscillation or "ringing" in a conference connection involving a plurality of stations and at least one trunk. Time division switching may be employed.
Patent GB-746328-A (GB)
Title: Improvements in or relating to arc lamps
IPC: H05B31/00
Filed: 1954-04-15
Abstract: 746,328. Arc lamps, GRETENER, E. April 15, 1954 [April 17, 1953], No. 11218/54. Addition to 622,289. Class 39 (1). The revolving disc negative electrode of the parent Specification is impregnated with a substance which prevents formation of foil forming deposits from the evaporation and oxidation products of the arc. The disc electrode may be impregnated e.g. by dipping or painting, with an alkali metal silicate, e.g. potassium or sodium silicate. In one example a disc-shaped electrode of graphite was painted with an aqueous solution of sodium silicate of specific gravity 1.5 and a content of silicon oxide of 33 per cent. In another example the disc electrode was dipped for one hour in the sodium silicate solution to which 1 per cent of the sodium salt of di-isobutyl-naphthalenesulphonic acid was added as detergent.
Patent GB-1340567-A (GB)
Title: Process for the chromatographic separation of mixtures
IPC: B01J39/26
Filed: 1971-04-27
Abstract: 1340567 Chromatographic separation BOEHRINGER MANNHEIM GmbH 27 April 1971 [28 April 1970] 11591/71 Heading B1X Chromatographic separation is carried out using at least two different adsorbents one of which is a cross-linked molecular sieve. The other or others are positioned upstream of the first mentioned adsorbent and may be anionic or cationic exchange materials or molecular sieve materials having a higher degree of crosslinking or any combination thereof. The ion exchange materials may be a mixture of anionic and cationic exchangers. The adsorbents may be packed in a single column and may be separated from each other by porous plates, or they may be packed in separate columns arranged in series. The sieves may be dextrans cross linked to a varying extent with epichlorhydrin, or cross-linked polyamides. Materials separated are dextran blue, catalase, ovalbumin haemoglobin, chymotrypsin, cytochome C and phenylanaline in a phosphate or tris buffer. The buffer is also used as eluent.
Patent GB-635528-A (GB)
Title: Improvements in or relating to circuit arrangements for electric discharge lamps
IPC: H05B41/232
Filed: 1948-04-28
Abstract: 635,528. Supply systems for discharge lamps. EKCO - ENSIGN ELECTRIC, Ltd., and STICKLEY, W. A. April 28, 1948, No. 11593. [Class 38 (iv)] A circuit for a discharge lamp F which provides for automatic reduction of heating current for the filamentary electrodes H<1>, H<2> when the lamp strikes, comprises a choke L<1>. and heater transformer L<2> in series across the supply M, N, the discharge path of the lamp, in series with a condenser C, forming a shunt across the primary of the transformer.
Patent GB-377203-A (GB)
Title: Improvements in or relating to water-setting cements and compositions, and the application thereof
IPC: C04B28/32
Filed: 1931-04-20
Abstract: Magnesite is thoroughly calcined at a temperature (750-900 DEG  C.) sufficient to produce a colloidally fine oxide of high density but not sufficiently high to "dead roast" it.  The oxide, with or without inert fillers and pigments, is mixed with magnesium chloride solution to produce a mixture of creamy consistency, to which a small amount of a stabilizer such as cadmium oleate may be added.  The composition may be applied to surfaces by spraying, or it may be cast into blocks, &c.  When applied to glass surfaces a preliminary coating of calcium fluoride, sodium silicate and magnesia or clay is applied.ALSO:Magnesite is thoroughly calcined at a temperature (750-900 DEG  C.) sufficient to produce a colloidally fine oxide of high density but not sufficiently high to dead burn it.  The oxide, with or without fillers and pigments, is mixed to a creamy consistency with magnesium chloride solution.  A small amount of a stabilizer such as cadmium oleate may be added.  The composition may be cast into blocks, &c., or applied to surfaces by spraying.
Patent GB-1260758-A (GB)
Title: Slide changing means for projectors and viewers
Inventor: NERWIN HUBERT
IPC: G03B23/04
Filed: 1969-03-05
Abstract: 1,260,758. Slide-changing apparatus. EASTMAN KODAK CO. March 5, 1969 [March 5, 1968], No. 11710/69. Heading G2A. A slide-changing device for use with a pack of slides pivotally mounted on a pivot rod as in Fig.2 (not shown), comprises a loading arm 57 and a retracting arm 58 which are simultaneously pivoted about shaft 61 in opposite directions whereby lobes 87, 88 of the arms displace one slide 15 out of gate 47 into the pack and displace a second slide 16 from the pack into the gate, the slides moving in overlapping counter-rotating relation to each other. The slide pack is urged towards the gate by spring-loaded feeder block 34, the pack resting on guides 41, 42 tilted relative to a front channel member 32 into which the pack advances as the slides are changed. Arms 57, 58 have slots which are engaged by the pin 84 of a pivoting driving arm 59 actuated by a stepped cam 73 which is rotated through a one revolution clutch 77 by worm 79 and gear 81. As cam 73 is followed by driving arm 59, pin 84 moves downwards to cam arms 57, 58 to the position shown with lobes 87, 88 above the slides 15, 16. When the step in cam 73 is reached, torsion spring 69 snaps arm 59 upwards whereby lobes 87, 88 rapidly inter-change slides 15, 16. Spring-loaded pressure plate 49 of the gate has an inclined edge and is cammed apart from plate 33 by the entering slide 16. Rear edge 46 of channel 32 supports the pack by engaging slide 16 until the slide-change cycle is initiated by means of control lever 82.
Patent GB-772605-A (GB)
Title: Improvements relating to balance-to-unbalance transformers
Inventor: PRATT ALAN HERBERT
IPC: H01P5/10
Filed: 1954-04-23
Abstract: 772,605. Impedance-transforming networks. ELECTRIC & MUSICAL INDUSTRIES, Ltd. April 25, 1955 [April 23, 1954], No. 11748/54. Class 40 (8). [Also in Group XL (c)] A balance - to - unbalance transformer is designed to provide transformation in two spaced bands of frequencies, e.g. at bands centred on frequencies of 43.25 and 190 Mc./sec. The transformer is of the type in which the inner and outer conductors of a coaxial transmission line 4 are connected to the terminals of a balanced source, e.g. a dipole antenna 1, and an auxiliary conductor 5, e.g. a further coaxial line, is connected at one end to the inner conductor of the coaxial line 4 at the balanced end A of the transformer and at the other end to the outer conductor of the line 4 so as to form with the line 4 an auxiliary transmission line. According to the invention a short-circuited stub line 6 of length #/2 at the higher of the two frequencies is connected to the auxiliary transmission line at a point B whose distance from A is equal to 3#/4 so that a virtual open circuit is provided at A at the higher frequency. The electrical length at the lower frequency of the portion of auxiliary line BD is so chosen that the parallel combination of the stub 6 and the portion BD provide the correct reactance at B to produce a virtual open circuit at A. The section of line BD has no effect at the upper frequency since, at this frequency, the auxiliary line is virtually short-circuited at B. In a modification the auxiliary line AD is terminated at B instead of D and the characteristic impedance of the stub line 6 arranged to provide the correct reactance at B at the lower frequency. Specification 438,506, [Group XL], is referred to.
Patent GB-847525-A (GB)
Title: Preparing polymer solutions and emulsions
IPC: C08J3/11
Filed: 1957-04-10
Abstract: A solution of water-insoluble polymers in an organic solvent is obtained by adding solid polymer particles to an agitated mixture of solvent and water.  The solvent-water mixture in the ratio of from 3:1 to 1:1 may be an emulsion, and agitation is discontinued and the phases separated after the polymer is dissolved.  The polymer may be added as wet crumb simultaneously with further solvent to give a final solvent : water : polymer ratio of at least 3:2:1. In a further stage the solvent-water-polymer <PICT:0847525/IV(a)/1> emulsion is homogenized, the solvent removed and recycled, and a stable water-polymer dispersion obtained.  Natural rubber, polyisobutylene, butyl rubber, copolymers of butadienestyrene, butadiene-acrylonitrile, and isobutylenestyrene and polymers derived from steamcracked petroleum resins are specified and organic solvents, e.g. hexane are listed.  Emulsifying agents, e.g. oleic acid, a polyoxyethylated octyl phenol, and polyvinyl alcohol may be included in the water-solvent mixture.  An apparatus (Figure) is described in which a hexanewater emulsion prepared in vessel 4, is passed to vessel 7, and a rubber added with agitation to form a hexane-rubber solution dispersed in water which is then homogenized 11, stripped of solvent 13, and the resulting latex removed and concentrated.  In examples solutions of butyl rubber, natural rubber and copolymers of isobutylene-styrene and butadiene-styrene in hexane are prepared and emulsions prepared therefrom.
Patent GB-565170-A (GB)
Title: Improvements in temporary binders, files and the like
IPC: B42F13/12
Filed: 1943-07-20
Abstract: 565,170. Loose-leaf binders. BELMAN, S. July 20, 1943, No. 11819. [Class 146 (i)] In loose-leaf binders of the kind in which the filing posts are closed at the upper end by spring - controlled locking-members, which are adapted to pass through the perforations in the leaves and then to be turned through a right-angle, so as to retain the leaves, each post is in the form of a tube or socket 4, to which the locking-member 13 is connected by a spring. The locking-member, which may have a pointed end 14 for perforating the papers, is pivoted to a rod 18 which slides in the post and is urged downwards by a spring 11. The locking- member is thereby held either transversely to the post, in order to retain the papers, or in alignment with it, in order to pass through the leaves. The post may be inclined to the flange 5, by which it is secured to the cover, in order to reduce the thickness of the binder.
Patent GB-1156882-A (GB)
Title: Improvements in or relating to Pipe Couplings
Inventor: BRADLEY GEORGE FRANK
IPC: F16L27/073
Filed: 1967-03-14
Abstract: 1,156,882. Flexible pipe couplings. VICKERS Ltd. 7 Feb., 1968 [14 March, 1967], No. 12031/67. Heading F2G. A flexible coupling for two tubes 1, 2 comprises a ball-and-socket joint for each of the tubes within a common housing, the housing being a composite member consisting of a flanged-central ferrule 19 and two nuts 15, 16 which support pairs of resilient or/and resiliently mounted socket rings for the ball members, and provision being made in each of the ball members for axial sliding movement of the associated tube end. In the embodiment of Fig. 1, the axial sliding movement is enabled by the provision of nipples 3, 4 slidable in bores of the respective ball members 9, 10, the latter having shoulders 21, 22 to limit the sliding movement in one direction. Sliding movement in the opposite direction is limited either by a circlip 23 or by a flange 24 on the associated tube. Seals 7, 8 prevent fluid from leaking past the nipples. The four socket rings 11-14 are of a rubber-like elastomer and are suitably pre-stressed by tightening the nuts 15, 16 through the application of tools to formations 17, 18, 20. The screw threads 15a, 16a on the nuts may be of the same or opposite hand. In a second embodiment, Fig. 2, the tubes 1, 2, which are short lengths fitted with sealed flanges 31, 32 for coupling to longer lengths of tubing, are provided with respective pistons 33, 34 which operate in closed cylinders formed by constructing each of the balls from a pair of sections, 39a, 39b and 40a, 40b, respectively, which are secured together by screwthreading 39c, 40c, respectively. Each piston carries a seal, 35, 36, respectively, and divides the respective cylinder into two chambers the outer of which is in communication with the tube bore via a passage, 43, 44, respectively, while the other is in communication with atmosphere, at 45b, 46b respectively. Seals 39e, 39f, 40e, 40f further seal the assembly. The pistons are so dimensioned that the forces acting on the ends of the tubes 1, 2 are balanced by those acting on the pistons in the outer chambers 41b, 42b. The socket rings in this embodiment are of two kinds, the inner rings 51, 52 being of a rubber-like elastomer while the outer rings 53, 54 are of a harder plastics material. Modifications of the Fig. 2, construction are also disclosed (Fig. 3, not shown), one of these being the provision of a fibre ring (57) and locating ferrule (58) disposed between the two socket rings such that the fibre ring prevents the elastomeric ring (51) from being extruded into the space between the rings while another modification is the replacement of the ring of harder plastics material by a metal ring (59) which is covered on its sides facing the nut (48) with elastomer or plastics material, a spacing ferrule (62) also being provided between the two rings.