baber/WOPTO huggingface dataset:
Patent GB-598481-A (GB)
Title: Improvement in concentration of vitamin a esters
IPC: A61K31/59
Filed: 1945-06-21
Abstract: Vitamin A esters are separated from glycerides by passing the mixture preferably dissolved in a non-polar solvent, over a mild substantially non-acidic, or a deactivated strong absorbent.  For the purposes of this invention the expression mild absorbent means any absorbent having an absorptive coefficient, the same as or less than deactivated magnesia, and strong absorbents are those having absorptive coefficients greater than deactivated magnesia.  Mild absorbents mentioned include sodium aluminium silicate (artificial zeolites) natural zeolites, calcium hydroxide, calcium phosphate and zinc carbonate.  Strong absorbents are deactivated by treatment with steam or a polar solvent.  The solvents used are those of weak eluting power, and are low in the eluotropic series being below benzene in the series.  Solvents mentioned include light petroleum, petroleum naphtha, hexane and cyclohexane.  It is preferred that after the adsorption step, the column should be washed with a further quantity of solvent which is then evaporated under vacuum to give a concentrate of vitamin A esters.  It is also of advantage if the starting mixture is given a preliminary distillation under reduced pressure before being subjected to the process of the invention. Examples are given using various combination of oils and various adsorbents.  Samples have been furnished under Sect. 2 (5) of (1) an ester concentrate obtained by dissolving a natural concentrate in petroleum ether and absorbing in aluminium silicate and re-extracting with petroleum ether.  (2) A triglyceride fraction obtained by subsequently electing the column obtained in sample (1) with ethyl ether, and evaporating the ether.
Patent GB-491991-A (GB)
Title: Improvements in and relating to pneumatic suction holders
IPC: B60R1/02
Filed: 1937-06-08
Abstract: 491,991. Pneumatic-sucker fastenings. COLLINS, W. N., and BARLOW, R. June 8, 1937, Nos. 15848/37 and 8403/38. [Class 44] A pneumatic-sucker fastening which can be used for holding a motor-vehicle licence or other display card, or for supporting various articles such as ash-trays, match boxes, driving mirrors &c. on smooth surfaces, comprises a rubber ring 1, 5 to which a dished cover 9 of springy material is secured, the cover being deformable with snap-over action to assume an outwardly convex or concave form. The ring has a flat or concentrically ribbed face 2 to bear against the smooth surface 3. The cover 9 is centrally attached to a dished member 6 having a flange 7 vulcanized to the part 5 of the ring. The periphery of the cover is slotted to provide tongues 12 which are curved to form a channel or head 11 normally embracing and bearing against an upstanding part 8 of the ring. In applying the sucker the central part of the cover is depressed so that the flange 7 bears against the surface 3 and the cover takes an upwardly concave form with the channel 11 raised away from the part 8. The peripheral part 11 is then depressed, the part 6 serving as a central abutment causing the cover to spring to the upwardly convex form shown, this movement creating a partial vacuum within the sucker. In a modification the periphery of the cover extends beyond the part 8 so that when depressed the central part is raised, part 8 serving as a fulcrum. The cover may be provided with ball-joint or other connection appropriate to the article to be supported.
Patent GB-593991-A (GB)
Title: Improvements in and relating to combustion units
IPC: F02C7/266
Filed: 1945-06-21
Abstract: 593,991. Generating combustion products under pressure. BRITISH THOMSONHOUSTON CO., Ltd. June 21, 1945, No. 15910. Convention date, June 22, 1944. [Class 51 (i)] [Also in Groups XI and XXVII] A double-walled combustion chamber for a gas turbine is provided with an ignition plug which comprises two plug members 7, 8, Fig. 1, fitted with conducting posts 14, 26 connected by a yieldable electrical connection 18 secured to one post and pressing against the other; the plug members being detachably mounted in openings in the inner and outer casings 1, 2 and the opening in the outer casing is made larger than the member 7 so that this member may be inserted and removed through it. The inner end of post 14 forms the electrode. The member 7 is attached to the inner casing 2 by ears 13, Fig. 2, which pass between and then slide under the ears 11 forming part of the mounting ring 10. welded to the casing 2. The member 7 is also provided with passages 20 which lead air from the inlet of the combustion chamber to a recess adjacent to the electrode points 15, 16 to keep these points and the insulator clean and cool. The flexible electrical connection 18 is pressed downwards by the post 26 when the member 8 is inserted in the casing 1 and slides in a groove in the post 26 so that a good electrical connection which allows for differential expansion between the casings 1 and 2 is made.
Patent GB-494532-A (GB)
Title: Improvements in nozzles, particularly applicable to water wheels or turbines
IPC: F03B1/04
Filed: 1937-06-09
Abstract: 494,532. Hydraulic turbines. BASSETT, S. J. June 9, 1937, No. 15963. [Class 110 (iii)] A nozzle for use in a turbine for a watersoftening plant is constructed so that the jet is automatically broken when the pressure exceeds a predetermined amount. Fig. 1 shows the normal position of the nozzle which comprises a fixed part 2 into which water is admitted at 6, and a flap 1 pivoted at 3. When the pressure becomes excessive the water lifts the flap and the jet through the nozzle passage 9 is broken as shown in Fig. 2. The parts 1, 2 may be slidably arranged.
Patent GB-144113-A (GB)
Title: Holders or carriers for safety razor blades
IPC: B26B5/00
Filed: 1919-06-25
Abstract: 144,113. Gregory, G. W. June 25, 1919. Pocket, pen, and like knives; razors, safety. A holder, primarily intended for waste safety - razor blades to be used for sharpening pencils, comprises a blade-carrier b and a handle a arranged as an ordinary pocketknife, the carrier and handle having portions r which abut in the open position, and the carrier having indentations b<1>, b<2> which engage perforations in the blade and secure it in position. Coacting indentations a<1> in the carrier and handle, which are in the form of U-shaped sheaths, secure the carrier in the open and closed positions. In a modification for taking non-perforated blades, the carrier is formed with a curled-in end or rollers at its forward edge for facilitating the entry of the blade, the end of which abuts against an indented stop at the rear end of the carrier. In a further modification, the carrier is permanently in alinement with the handle, the carrier and blade sliding into and out of the handle. A guard or comb may be slidably engaged with the carrier in its open position, so that the device may be used as a safety razor. The device may be used for stropping safety-razor blades.
Patent GB-576078-A (GB)
Title: Improvements relating to paper-makers' wire cloth
IPC: D03D25/00
Filed: 1944-08-22
Abstract: 576,078. Paper-makers' wire-cloths. UNITED WIRE WORKS, Ltd., and GREEN, W. D. T. Aug. 22, 1944, No. 16041. [Class 96] The warp knuckles on the underside of a plain, twill, or multiple weave paper-makers' wirecloth are ground to form flat spots a<2>, so that the drainage-characteristics of the wire-cloth vary less during the 'life' of the cloth. The warp may be ground to the level of the weft knuckles, and preferably the warp wire is not reduced to less than half-thickness.
Patent GB-970729-A (GB)
Title: Improvements in self regulating reciprocating pumps and in particular fuel injection pumps
IPC: F02M41/12
Filed: 1961-05-03
Abstract: 970,729. Fuel injection pumps. SOC. ANON. POUR L'EXPLOITATION DES PROCEDES CHIMIQUES ET PHYSIQUES. May 3, 1961 [May 11, 1960], No. 16069/61. Heading F1A. In a fuel injection pump as described in Specifications 861,754 and 904,518 a mechanically driven valve 10 is provided in series with the check valve 20 in the conduit 13 through which flows the liquid producing the outward strokes of the shuttle member 7. The valve 10 comprises axial grooves 25 which register with inlets 12 on the downward stroke of the pump piston 2 and with the conduit 13 on the upward stroke by rotating the piston. In an alternative form, the conduit 13 communicates with grooves in the piston 2.
Patent GB-543410-A (GB)
Title: Improvements in and relating to bearings
IPC: F16C33/26
Filed: 1940-11-05
Abstract: 543,410. Bearings. LITHGOW, J., and THORNTON, J. A. Nov. 5, 1940, No. 16092. [Class 12 (i)] A bearing for a shaft 6 consists of the edges of a number of rings E mounted in a rockable carrier 7, the faces of the rings having an area greater than the edges. The rings may each be in one piece or in two or more parts and are an easy fit on the shaft and in the carrier, being retained by rings 9 fitting into grooves in the carrier. The faces of the rings may have grooves or slots or may be concave to provide lubricant channels. The carrier 7 has a rib 13 for self-aligning and the block 3 has flanges 5 which receive packing rings 10. Specification 532,228 is referred to.
Patent GB-1030751-A (GB)
Title: Herbicidal compositions suitable for use as selective weed-killers
Inventor: PFEIFFER RUDOLPH KOLOMAN
IPC: A01N43/70
Filed: 1962-04-27
Abstract: Herbicidal compositions for the selective control of weeds in brassica crops comprise a mercapto triazine of the formula <FORM:1030751/A5-A6/1> wherein R1, R2, R3 and R4 each represents a hydrogen atom or an alkyl group, and 2-methoxy-3, 6-dichlorobenzoic acid or a salt or functional derivative thereof. They may be in conventional forms e.g. powders, wettable powders and aqueous suspensions containing known diluents and wetting agents.  The invention further comprises the selective control of weeds in brassica crops by application of the above compositions.
Patent GB-675699-A (GB)
Title: Improved apparatus for exhibiting changeable pictures
IPC: G03B15/08
Filed: 1950-06-28
Abstract: 675,699. Zoetropes. ENGELKEN, M. A. June 28, 1950 [Aug. 27, 1949], No. 16153/50. Class 97 (i). [Also in Groups XVIII] A composite picture, comprising at least two pictures broken up into intercalated sets of elements, is movably mounted behind an opaque selector plate having openings, which reveal the elements of one picture, each opening being at the focus of an element of a lenticular plate, the whole assembly being illuminated at one side and viewed from the other. The housing 10 shown is divided by a partition 11 with a recessed central portion with an aperture 14 in front of the selector plate 15. The lenticular screen is mounted at 31. If the plate 15 is a line screen the screen elements are horizontal. The picture 38 is mounted close to the selector plate in a frame 29 secured by latches 27 in an aperture in a plate 16 running on rollers 17 retained on the partition 11 by springs 18 engaging studs 20 projecting from the edge of the plate. The bearings for the rollers are eccentric bushes rotatable to adjust the picture towards or away from the plate 15. The picture is reciprocated vertically by an eccentric cam 22 rotated by the motor M through worm gearing and engaging the bottom of the plate 16. The picture may be viewed through the lenticular screen, being illuminated by tubular lamps 30 which are, however, disposed horizontally if the plate 15 is a line screen. A diffusing screen may be disposed at 35 in front of the lenticular screen. Alternatively, a lamp and condenser may direct parallel light on to the lenticular screen and the picture be viewed from the opposite side where a diffusing screen is placed as far from the picture as the lenticular screen. U.S.A. Specifications 1,636,415 and 1,260,682 are referred to.
Patent GB-1497000-A (GB)
Title: Fluorescent dyes
IPC: C09B5/14
Filed: 1976-04-21
Abstract: 1497000 Fluorescent dyes MONTEDISON SpA 21 April 1976 [24 April 1975 (2)] 16171/76 Heading C4P The invention comprises fluorescent dyes having the general formula wherein Z is a nitrogen or carbon atom, X is H or is additionally bromine when Z is carbon, Y is methoxy or ethoxy or is additionally H when Z is a carbon atom, and X' is -NH- or additionally -S- when Z is nitrogen. They are prepared by reacting a halogen substituted compound of the general formula wherein X, Y and Z are as above and A is Cl or Br with a compound of the general formula wherein X' is as above in an aprotic dipolar solvent at 80-140‹ C. in presence of an acid acceptor. The solvents include dimethylformamide, dimethylacetamide, dimethylsulphoxide, 1-methylpyrrolidin-2-one, hexamethylphosphotriamide and mixtures thereof. Acid acceptors used are sodium and potassium carbonates, pyridine and piperidine. The dyes are used to bulk dye polystyrene, polymethylmethacrylate, rigid P.V.C. polyethylene, acrylonitrile-butadiene-styrene copolymers and polycarbonates, and to colour mineral oils.
Patent GB-1279918-A (GB)
Title: Inflatable article valve
IPC: F16L37/46
Filed: 1970-04-06
Abstract: 1279918 Valves AUTOMATIC HELIUM BALLOON SYSTEMS Inc 6 April 1970 [19 May 1969] 16193/70 Heading F2V A valve device, which is suitable for inflating a toy balloon, the neck of which balloon is shown in broken lines, comprises a body member 14 formed with two inwardly directed flanges 20, 23 and one outwardly directed flange 21, the latter flange stretching the balloon neck and so forming a sealing engagement therewith, a slide member 13 formed with one inwardly directed flange 28 and two outwardly directed flanges 30, 26, with flange 26 being serrated along its periphery, and a nozzle member 37 having a tapered head portion 40 which is spaced from the body of the nozzle by a portion of reduced diameter. In operation and with nozzle member 37 retracted out of the valve body 14, body and slide members attain the relative position shown wherein a port 32 in a cylindrical part 25 of the slide member is sealed with respect to the balloon interior by virtue of the mutual engagement between flange 23 and slide cylindrical part 25. Upon inserting nozzle 37 into the body member, nozzle head 40 abuts slide flange 28 and so causes the slide to move relatively to the body member until body and slide flanges 23, 30 abut and port 32 is open to the balloon interior. Thereafter, further insertion of the nozzle causes slide flange 28 to be deformed such that the nozzle head can enter the closed portion 24 of the slide 13. With the nozzle in such position, flange 28 overlies the nozzle reduced portion and nozzle ports 38 communicate with the slide port 32 and hence with the balloon interior. Retraction of the nozzle causes, by virtue of the engagement between head 40 and flange 28, return of the slide member 13 into the body 14 such that flanges 23 and 26 abut each other subsequent to which, further retraction of the nozzle separates the latter from the valve body.
Patent GB-580392-A (GB)
Title: Manufacture of piperidino-ethanol ester of di-n-butylacetic acid
IPC: C07D295/088
Filed: 1944-08-28
Abstract: The piperidino-ethanol ester of di-n-butyl acetic acid which has pronounced cramp-relieving properties, may be prepared according to the hereinafter described methods.  The halides, esters or anhydride of di-n-butyl acetic acid may be reacted in the presence of absence of condensation agents with piperidino-ethanol, or salts of the acid may be reacted with reactive esters of piperidino-ethanol, for example, esters with halogen hydracids or aryl sulphonic acids.  A further method consists in converting the di-n-butyl acetic acid into its halogen-ethyl ester and reacting the latter with piperidine.  The halogen ethyl ester may be prepared by reacting the acid, its halides, esters or anhydride with an ethylene halogen hydrin in the presence or absence of condensation agents, or by reacting salts of the acid with ethylene dihalide or ethylene halogen hydrin and replacing the hydroxyl group present in the compounds obtained by the latter method by halogen.  The basic ester is water soluble in the form of its salts with inorganic or organic acids.  In examples: (1) di-n-butyl acetic acid chloride is reacted with piperidino ethanol to give the desired ester; (2) di-n-butyl acetic acid chloride is reacted with ethylene chlorhydrin in the presence of pyridine and the b -chloroethyl ester of the dibutyl acetic acid so obtained is reacted with piperidine to give the desired piperidineethyl ester. The Specification as open to inspection under Sect. 91 includes also the preparation of piperidino ester of di-n-butyl acetic acid by reacting the acid with reactive esters of piperidino ethanol in the presence or not of acid binding agents.  This subject-matter does not appear in the Specification as accepted.
Patent GB-606510-A (GB)
Title: Improvements in or relating to photographic objectives
IPC: G02B13/00
Filed: 1945-06-26
Abstract: 606,510. Optical objectives. KODAK, Ltd. (Eastman Kodak Co., and Reiss, M.). June 26, 1945, No. 16273. [Class 97 (i)] In an objective comprising two negative components axially aligned between two positive components, the latter consist of or include a material containing a fluoride and having a partial dispersion ng<1>-nF/nF-nc greater than 0.686- 0.0019 V., where n are the refractive indices and V the dispersive index of the material. The invention is described with reference to the lens shown, the lenses I, VI consisting of crystalline calcium fluoride. Data for one example are given. Specifications 606,511 and 606,512 are referred to.
Patent GB-274264-A (GB)
Title: An improved portable machine for constringing the cleft ends of sleepers and boring them in view of their consolidation
IPC: E01B31/28
Filed: 1926-06-28
Abstract: 274,264. Latty, X., and Michot, J. M. June 28, 1926. Drilling-machines. - Clefts or cracks at the ends of rail sleepers are closed by jaws 1 which also carry a drilling-apparatus to bore a hole in the sleeper for the recention of a tightening bolt. The jaws are piovted at 2 to a head 3, hollow at 3<a> to form a shackle ring and having abutments 3<b> to limit the angular movement of the jaws. The jaws are tightened by a spanner A engaging a right and left handed, threaded spindle 4 working in nuts journaled in the jaws, U-shaped brackets 6 being carried by the nuts to guide a rack 8, on the end of which is mounted a head 12 carrying a hand crank and chain driving gear for a drill 14 or for a drill socket. The rack is fed by a pinion rotated by a hand lever 11. Washers 15 of appropriate diameter may be mounted on the spindle 4 to engage the work thereby determining the depth at which the hole is drilled. The rack guide-brackets have cover plates attached by screws, or pivoted and locked in place by latches, to enable the rack and drilling-mechanism to be readilv dismantled and reassembled in a reversed position so that the sleeper may be drilled from both sides at one setting of the clamping jaws. The drill may be driven by gear wheels or by pulleys and a driving belt.
Patent GB-1204413-A (GB)
Title: Sweetening agents
IPC: A23L27/30
Filed: 1968-04-04
Abstract: 1,204,413. Sweetening agent. MONSANTO CO. 4 April, 1968 [5 April, 1967], No. 16356/68. Addition to 1,176,246. Heading A2B. A sweetening composition comprising at least 85 parts by weight of a maize starch hydrolysate, as defined, having a dextrose equivalent of 5-15 and an iodine affinity of less than 1, and up to 10 parts by weight of a non nutritive sweetener or sweeteners, for example a mixture of cyclamates and saccharine, the composition having a bulk density of up to 30 lbs./cu. ft., and preferably being in the form of particles all of which pass at 14 mesh U.S. standard screen but are all retained by a 100 mesh screen, may be prepared by preparing an aqueous solution of the components, drying to a glass, and reducing the particle size. Prior to drying the solution may be converted to a stable foam, preferably in the presence of a whipping agent.
Patent GB-294352-A (GB)
Title: Improvements in or relating to vehicle wheels
IPC: B60B1/02
Filed: 1927-06-20
Abstract: 294,352. Pugh, J. V., and Bayliss, C. T. June 20, 1927. Hubs; suspension spoke wheels.-A hub for a detachable wire-spoked wheel is formed from a sheet-metal blank of substantially uniform thickness by pressing &c. to produce a cylindrical barrel portion penetrated by the spokes, and an outwardly-extending end flange, or series of lugs, of just sufficient size to take the bolts or other fastening-devices. In the form shown in Figs. 1 and 2, the hub is produced from a square blank a the corners of which form lugs with holes a<1> for the securing-means, a coned portion c being provided between the lugs and the hub-barrel b. The outer end of the hub is threaded to take a cap f. As shown in Fig. 1, the inner ends of the spokes are arranged to give access to the securing- devices. In this form, both sets of spokes A, BC, D are shown connected to the rim g near its outer edge. In the modification shown in Figs. 5 and 6, the hub is formed from a hexagonal blank the bolt holes as are formed with flanges a<6> and the metal cupped at a<7> to facilitate access to the securing-devices. The outer end of the hub is formed with an inturned flange having a shouldered edge to receive a plain closing-device. In this form, the inner set of spokes A, B are shown connected to the middle of the rim.