baber/WOPTO huggingface dataset:
Patent GB-1235200-A (GB)
Title: Photosynthesis of alkoxyoxetanes and alkoxyoxetanes produced thereby
Inventor: SCHROETER SIEGFRIED HERMANN
IPC: C07D305/08
Filed: 1968-07-08
Abstract: 1,235,200. Alkoxyoxetanes. GENERAL ELECTRIC CO. 8 July, 1968 [29 Sept., 1967], No. 32560/68. Heading C2C. Novel 2-alkoxyoxetanes of the formula wherein R is a monovalent saturated aliphatic hydrocarbon or an aryl radical, R<SP>1</SP> is the same as R or a hydrogen atom, and, in addition R and R<SP>1</SP> may together with the adjacent carbon atom represent a cycloalkylidene structure containing 4-18 carbon atoms as indicated by the broken line, R<SP>2</SP> ,  R<SP>3</SP> and R<SP>4</SP> are each a monovalent hydrocarbon radical or hydrogen atom, and R<SP>5</SP> is an alkoxy radical, and already known alkoxyoxetanes wherein the values of R<SP>5</SP> and R<SP>2</SP> are reversed, i.e. R<SP>2</SP> is an alkoxy radical and R<SP>5</SP> is a monovalent hydrocarbon radical or hydrogen atom, are prepared by exposing to U.V. light of wavelength 2000 to 3700 angstroms, a mixture of a vinyl ether of the formula with a carbonyl compound of the formula The examples describe the preparation of 2,2- dimethyl - 3 - ethoxy - oxetane; 2,2 - dimethyl- 4 - ethoxy - oxetane; 2,2 - dimethyl - 3 - nbutoxyoxetane; 2,2 - dimethyl - 4 - phenoxyoxetane; 2,2 - dimethyl - 3 - phenoxyoxetane; 3 - ethoxy - 1 - oxaspiro - [3,5] - nonane; 3 - nbutoxy - 1 - oxaspiro - [3,5] - nonane; 2 - phenyl- 3 - ethoxyoxetane; 2 - phenyl - 4 - ethoxyoxetane; 2 - methyl - 2 - phenyl - 4 - ethaxyoxetane; 2- methyl - 2 - phenyl - 3 - ethoxyoxetane; and diphenyl-butozy-oxetane. 4,4 - Dimethyl - 2 - ethoxyoxetane and 4,4 - dimethyl - 2 - n - butoxyoxetane are claimed per se.
Patent GB-282221-A (GB)
Title: An improved tool for cutting holes in sheet and like metal
IPC: B23B51/05
Filed: 1926-12-28
Abstract: 282,221. Wynn, Timmins, & Co., Ltd., and Smith, W. A. Dec. 28, 1926. Drills and cutters; taps.-A tool for cutting holes in sheet metal comprises a central body a whose lower end l is fluted and formed with a part-conical and part-parallel screw thread to engage a small hole initially formed in the work and feed the U-shaped annular cutter e. The latter is removably mounted in a slot d in the body by means of a screw f passing through a slot g in the cutter so as to allow a limited amount of axial movement. The upper end of the body is secured at b to receive a knurled nut i by means of which a spring h may be compressed to keep the cutter up to the work. Washers j, k engage the ends of the spring and the body is squared or otherwise shaped at c for the reception of a drill-chuck, brace &c.
Patent GB-301210-A (GB)
Title: Improvements in the recovery of phosphoric acid from crude phosphates
IPC: C01B25/22
Filed: 1927-12-05
Abstract: 301,210. Johnson, J. Y.., (I. G. Farbenindustrie Akt.-Ges.). Dec. 5, 1927. Phosphoric acid. - The reaction of sulphuric acid or its salts upon calcium compounds is carried out in presence of metaphosphoric acid or its salts whereby calcium sulpha,te is obtained in a granular and readily filterable condition. Potassium nitrate may be formed by reaction of potassium sulphate upon calcium nitrate in presence of metaphosphoric acid. Phosphate rock may be treated, with sulphuric acid or sodium bisulphate to produce phosphoric acid or sodium phosphate in presence of metaphosphoric acid. The reaction mixture may be diluted with phosphoric acid containing metaphosphoric acid from a previous operation.
Patent GB-190137-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/16
Filed: 1922-12-01
Abstract: 190,137. Stauder, V. Kobler-. Dec. 12, 1921, [Convention date]. Tobacco pipes.-Discs 2, each having two slots at 7 forming a smoke passage, are spaced upon a rod 1 at such distances that when dipped into a liquid some of the liquid is retained between the discs by capillary action and serves to cool the pipe and condense nicotine. The rod 1 has a slotted end-piece 4 fitting into the mouthpiece and is enclosed in a tube 5 apertured at 8 to communicate with the interior of a lining 6 threaded in the bowl. In a modification, the bowl is provided with a lining radially slotted at the bottom and is open to the stem, the rod and the discs extending into it and each disc having three slots. All the fittings described may be of aluminium.
Patent GB-163649-A (GB)
Title: Improvements in or relating to spool mountings for kinematograph apparatus
IPC: G03B21/32
Filed: 1920-02-21
Abstract: 163,649. Peranne, J. B. A. E., and Aube, A. Feb. 21, 1920. Winding webs.-The take-up spool D for a kinematograph film is mounted on a cylindrical member A enclosing the spring H for the usual frictional drive, a collar G on the winding-shaft F forming a journal for the open end of the cylinder, and the shaft F passing through and supporting the closed end of the cylinder. A washer J is disposed between the spring and the closed end of the cylinder.
Patent GB-955963-A (GB)
Title: 5-chlorobenzimidazole derivatives
Inventor: DEPOORTER HENRI
IPC: C07D235/08
Filed: 1960-09-26
Abstract: The invention comprises compounds of formula: <FORM:0955963/C2/1> where R1 is alkyl, R2 is methyl, and R3 is bromine, nitro or amino. In examples, 1-ethyl-2-methyl -5- chloro -6- nitrobenzimidazole is prepared by nitration of 1-ethyl -2- methyl -5-chlorobenzimidazole, reduced to the 6-amino compound, and the latter is diazotised and treated with CuBr to give the 6-bromo compound. Specifications 955,961 and 955,962 are referred to.
Patent GB-275925-A (GB)
Title: Improvements in light signals
IPC: B61L5/18
Filed: 1926-12-30
Abstract: 275,925. Westinghouse Brake & Saxby Signal Co., Ltd., (Assignees of Wells, W. B.). Aug. 13, 1926, [Convention date]. Lenses.-In a light signal in which the light is projected in a parallel beam by means of a doublet composed of two lenses C', C<2>. concentric wedge-shaped grooves 2, 3 are formed on the outer surfaces of the lenses and each groove has a surface 2a, 3<a>, parallel to the rays of light emerging from the corresponding lens. A cover glass E is supported by a cylindrical member F and a securing-ring 13 in front of the front lens C<2> and the central portion of the inner surface of the glass E is provided with horizontal prisms 12 to direct some of the light rays downwards. Concentric opaque cylindrical screens D are arranged between the cover glass E and the front lens C<2> in order to prevent light from entering the signal casing from outside, and the innermost screen preferably supports two flat ribs 9 disposed at right-angles to one another.
Patent GB-497770-A (GB)
Title: An improved sparking plug having means for automatically varying the spark gap
IPC: H01T13/24
Filed: 1937-11-29
Abstract: 497,770. Sparking - plugs. KILBURN, W. F. Nov. 29,1937, No. 32975. [Class 7 (iv)] The inner part H of the central electrode consists of a bimetallic strip which distorts as the temperature rises affording a wider spark-gap during normal running than under starting conditions. One or more projections J at the inner end of the insulator limit the amount of adjustment. The terminal D<1> may be integral with or secured to the end of the strip H.
Patent GB-189812-A (GB)
Title: Pipe joint more especially for water closets
IPC: F16L19/02
Filed: 1922-12-05
Abstract: 189,812. Esperstedt, K. Dec. 5, 1921, [Convention date]. Stuffing-box joints.-In a pipe joint, especially for water-closets, in which the pipe c is secured in the socket b of the pan a by a nut e screwing into a sleeve f so as to compress an elastic ring d. an elastic ring g is inserted between the inturned flange 6 of the sleeve and the enlarged end 3 of the socket b and the inner surface of the nut e is coned as shown. The inturned flange 6 is of such a width as to permit it to be passed over the enlarged end 3.
Patent GB-692545-A (GB)
Title: Process of preparing a diels-alder condensation product and insecticidal compositions containing the same
Filed: 1948-12-24
Abstract: Hexahalocyclopentadienes are reacted according to the Diels-Alder method with monoolefinic compounds comprising uninuclear or condensed multinuclear partly hydrogenated aromatic ring systems in which each nucleus contains a 1 : 4-methylene bridge; the products have the skeleton <PICT:0692545/IV (b)/1> in which one of the terminal 5-membered rings has a double bond and only halogen atoms are attached to the carbon atoms in this ring.  The other terminal ring may contain substituents which can undergo various reactions (see examples below).  The Diels-Alder reaction is carried out by heating the reactants together, with or without a solvent.  In the examples: (1) hexachlorocyclopentadiene is reacted with bicyclo - (2 : 2 : 1) - 2 - heptene to give hexachlorotetracyclododecene; (2) hexachlorocyclopentadiene is reacted with tetracyclododecene (obtained from bicyclo - (2 : 2 : 1) - 2 - heptene and cyclopentadiene or dicyclopentadiene) to give hexachlorohexacycloheptadecene; (3) hexachlorocyclopentadiene is reacted with 5-acetoxybicyclo - (2 : 2 : 1) - 2 - heptene to give 6 - acetoxy - hexachlorotetracyclododecene; (4) the product of (3) is hydrolysed to the 6-hydroxy compound; (5) the product of (4) is heated with phosphorus pentachloride to give the 6-chloro compound; (6) hexachlorocyclopentadiene is reacted with 5-phenylbicyclo-(2 : 2 : 1)-2-heptene to yield 6 - phenyl - hexachlorotetracyclododecene; (7) hexachlorocyclopentadiene is reacted with 5 : 5-dichloro-bicycloheptene (obtained from cyclopentadiene and 1 : 1-dichlorethylene in the presence of a polymerization inhibitor) to give 6 : 6-dichlorohexachlorotetracyclododecene.  The product of (4) may be oxidized to the corresponding ketone.  Various products may be halogenated.  Other suitable dienophiles are mentioned and the halogen atoms in the products may be bromine.  Specifications 614,931 and 692,546 are referred to.ALSO:Insecticidal compounds contain as active ingredient one or more compounds of the structure given in Specification 692,546 p  but containing only one double bond.  The compounds may be dissolved in oils and/or emulsified in water, or combined with carriers to give wettable or non-wettable dusts.  They may be used in conjunction with other insecticides.  Specific compounds are hexachlorotetracyclododecene, hexachlorohexacycloheptadecene, 6-acetoxy-hexachlorotetracyclododecene, 6-hydroxy-hexachlorotetracyclododecene, heptachlorotetracyclododecene, 6-phenyl-hexachlorotetracyclododecene and octachlorotetracyclododecene.  Tables are given of the activities of these compared with known insecticides.  Specification 614,931 also is referred to.
Patent GB-471413-A (GB)
Title: Improvements in or relating to metal sockets, bushes, ferrules, rivets and the like
IPC: F16B19/10
Filed: 1935-12-02
Abstract: 471,413. Sockets; rivets. HALL & KAY, Ltd., HALL, J. H., and HALL, S. Dec. 2, 1935, No. 33293. [Class 89 (i)] Metal sockets, brushes, ferrules, rivets, and the like 8 of the, kind having one or both ends 9 hollow and internally chamfered or bevelled, are formed on the exterior of the hollow end or ends with projections 10 which, when the end or ends is or are upset, bite into the material of the work and prevent turning of the device therein. The projections 10 are preferably formed as longitudinal serrations or teeth. One end of the device may be formed as described in Specification 318,182, [Class 83 (iv)] ; the device need not be tubular throughout, as described in Specification 348,631.
Patent GB-838667-A (GB)
Title: Process for forming sodium perborate crumbs
IPC: B01J2/10
Filed: 1957-10-25
Abstract: Crumbs containing or consisting of sodium perborate are formed by subjecting sodium perborate or a mixture comprising sodium perborate in the form of a solid or solids to the action of agitating means describing more than 100 r.p.m. with simultaneous or subsequent heating.  The crumb formation may take place in a long trough or tube through which the materials pass and subsequently the materials may be treated with hot air in a rotary drum drier.  The material may if desired be passed through a second crumb-forming vessel before heating.  Water or aqueous solutions of binding agents may be added to the initial material prior to or during treatment to provide a free water content of 3-35%, or a centrifuge-moist material may be used.  Other materials which may be present are: "bursting agents," which may be readily soluble organic or inorganic salts such as bicarbonates, carbonates, phosphates, sulphates or chlorides, which improve the solubility of the product; binding agents, e.g. starch, agar-agar, gelatine, vegetable and animal glues and cellulose derivatives such as methyl, ethyl, carboxyethyl and carboxymethyl cellulose, which latter also has a "bursting action"; stabilizers such as magnesium silicate, sodium stannate, the sodium salt of ethylenediamine tetra-acetic acid and water glass; active washing substances and bleaching auxiliaries, which may be added before or during crumb-formation; optical brightening agents, and finely divided oxides, which prevent sticking together.ALSO:Bleaching auxiliaries may be present in crumbs containing or consisting of sodium perborate which have been formed by subjecting sodium perborate or a mixture comprising sodium perborate in the form of a solid or solids to the action of agitating means describing more than 100 r.p.m. with simultaneous or subsequent heating (see Group III). The bleaching auxiliaries may be added during or after crumb formation.  Water or aqueous solutions of binding agents may be added to the initial material prior to or during treatment to provide a free water content of 3-35%, or a centrifuge-moist material may be used.  Other materials which may be present are: "bursting agents," which may be readily soluble organic or inorganic salts such as bicarbonates, carbonates, phosphates, sulphates or chlorides, which improve the solubility of the product; binding agents, e.g. starch, agar-agar, gelatine, vegetable and animal glues and cellulose derivatives such as methyl, ethyl, carboxymethyl and carboxyethyl cellulose, which latter also has a "bursting action"; and stabilizers such as magnesium silicate, sodium p  stannate, the sodium salt of ethylenediamine tetra-acetic acid and waterglass.  Active washing substances may also be added before or during crumb-formation, as well as optical brightening-agents and finelydivided oxides, which prevent sticking together.
Patent GB-618309-A (GB)
Title: Methods and apparatus for forming articles of plastic material
IPC: B28B13/02
Filed: 1946-11-11
Abstract: 618,309. Making pottery. HAWK, E. A. Nov. 11, 1946, No. 33478. [Class 87(i)] [Also in Group V] In the manufacture of a plate 77 in a partially evacuated chamber 22, thin layers of clay removed by the upper edge 84 of a rotary profile tool 73 from a column of clay passing down a chamber 20 fall on to a stationary mould 74 and are shaped by the tool 73. Clay from a pug mill passes through a tube 18 to a chamber 16 and thence to the rotary chamber 20 within which are co-operating fixed blades 61. The lower end of the chamber 22 is closed by a plate 37 supporting the mould 74. The apparatus may be enclosed in a partially evacuated drying room.
Patent GB-1112906-A (GB)
Title: Improvements in or relating to disc brakes
IPC: F16D65/095
Filed: 1965-08-05
Abstract: 1,112,906. Disc brakes. BENDIX CORPORATION. 5 Aug., 1965 [8 Dec., 1964], No. 33593/65. Heading F2E. In a spot-type disc brake, particularly one employing two circumferentially spaced pistons (34, Fig. 2, not shown) at each side of the disc operating in respective bores in a fixed caliper housing, the pads, or more particularly their backing plates 36, are shaped at their radially outer side to provide two arcuate portions 48, 50 joined by a straight section 53, the arcuate portions being circular and concentric with the piston axes, and being continued around the ends of the pad to join a straight radially inner side, whereby each pad has four arcuate anchoring faces, viz: two end faces, engaging surfaces 40, 46 on the housing, and two intermediate faces at the ends of the straight section 53, engaging surfaces 42, 44 on the housing. As a result, in either direction of rotation of the disc, one end anchoring face and one intermediate anchoring face engage the respective housing surfaces, as shown by the arrows. The housing is formed in two parts 12, 14, (Fig. 1, not shown) which are joined by bolts 16, 18, 20. Openings 52, 54 in the housing provide for lining inspection and the escape of dust and heat.
Patent GB-731657-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B19/04
Filed: 1953-12-04
Abstract: 731,657. Photographic cameras. KODAK, Ltd. Dec. 4, 1953 [Dec. 4, 1952], No. 33736/53. Class 98 (1). A photographic roll-film camera is provided with a pivoted indicating lever which is moved into a non-indicating position during the initial part of a film winding operation by a member rotatable by the film winding mechanism, which member temporarily engages and rotates in one direction a yieldable device pivoted on the indicating lever, the yieldable device, upon becoming disengaged from the rotatable member, rotating in the opposite direction and acting as a latch to retain the indicator in a non- indicating position until it is released therefrom by operation of the shutter actuating mechanism and returned to its indicating position by a spring. As shown, the indicator 11 is formed on an arm 18 pivoted at 19 and urged by a spring 22 into a position where the indicator 11 obscures the viewfinder 14 when the shutter has been released and before the film has been wound on (Fig. 2). A lever 38, constituting the yieldable device, is pivoted on the arm 18 at 37 and the spring 39 tends to turn the lever 38 so that its end 44 normally bears on the projection 43 fitted to arm 18. The shutter is released by a rod 30 on a bell-crank 26, pivoted at 27, which rod moves to the bottom of slot 62 on depressing the shutter release 29. In the position shown in Fig. 2, depression of the shutter release 29 is impossible since the rod 30 bears against the projection 61 on arm 18. The film is wound from the spool 15 on to a spool 16 causing gear 50 to turn gear 51 and disc 53 in the direction of the arrow. One of the pins 54 on disc 53 engages the lug 55 on lever 38 turning the arm 18 in a clockwise direction against the action of spring 22. On further turning the disc 53, the projection 56 on lever 38 becomes lodged behind the stop 57 fixed to the camera and the indicator 11 is removed from the line of the finder 14 as shown in Fig. 3. It is now possible to depress the shutter release 29 since the rod 30 can move down the slot 62, and in doing so, a projection 63 on the bell-crank 26 engages the top of the arm 38 and releases it from behind the stop 56, and the lever 18 can then move back into the position shown in Fig. 2 under the action of the spring 22 as soon as the rod 30 has been allowed to rise to the top of slot 62 by releasing the pressure on the shutter release 29.
Patent GB-363474-A (GB)
Title: Improvements in or relating to electric lamp holders
IPC: F21V19/00
Filed: 1930-11-10
Abstract: 363,474. Electric lamp holders. ILIFFE, A. E. and BENJAMIN ELECTRIC, Ltd., Brantwood Works, Tariff Road, Tottenham, London. Nov. 10, 1930, No. 33780. [Class 39 (ii).] A device for attaching an insulating skirt to an unskirted lamp holder 15, Fig. 1, comprises a metal band 10 with outwardly bent lugs 11, 12, Fig. 2, to receive a screw 13a provided with a spring 14 between its head and the lug 11, so that when the nut 13 is secured upon the screw the ring can be expanded resiliently to fit lamp holders of. different diameters. Three hook or claw members 17 extending downwardly from the ring 10 are adapted to engage a rim or bead 18 provided on the insulating skirt 16. A cork binding-ring 19 is provided inside the ring 10. In a modification for lamp holders provided with a shoulder or bead near their open end the claws extend upwardly from the clamping ring to engage the shoulder, and an annular groove is provided in the skirt to receive the ring.
Patent GB-1323099-A (GB)
Title: Workpiece supporting device
IPC: B25H1/00
Filed: 1970-07-13
Abstract: 1323099 Supporting and handling device P SCHONAUER and H SCHONAUER [trading as KOBA PAUL SCHONAUER & CO] 13 July 1970 [25 July 1969] 33914/70 Headings B4W and B4X A device for supporting and handling window frames 50 &c. comprises two supports 3 adjustably positioned in a clamping rail 2 and joined by a shaft 12, two beams 18 are adjustably positioned on shaft 12 and each has attached thereto a suction member 23. In use screws 14 are loosened and shaft 12 rotated so that the beams 18 are tilted until the ends carrying tubes 48 are near the ground. The ends of a frame to be placed on the device are in turn lifted on to tubes 48. Members 51 of the frame come in contact with the suction members and cause valves 43 to be opened. A vacuum pump 40 which maintains a vacuum in recesses 41 thus evacuates the areas 34 formed between members 51 and rubber bands 33 to firmly attach the members 51 to the members 23. The shaft 12 is then pivoted until support tubes 49 meet the ground in which position beams 18 are horizontal. Screws 14 are tightened. If the frame 50 is twisted the beams 18 may be set at an angle to each other. Supports 3 comprise a part 8 adjustably fastened to a part 6.
Patent GB-355130-A (GB)
Title: Product for and method of jelly preparation
IPC: C08L5/06
Filed: 1930-11-11
Abstract: A dry pectin preparation, suitable for use in making jellies, jams and marmalade, is made by incorporating with solid pectin a material other than a free acid and substantially inert in the dry state, but capable of yielding an edible acidulant when heated with water. Suitable substances are (1) acid anhydrides for example acetic, propionic, maleic, methylene citric, succinic, adipic, glutaric and diglycollic anhydrides (2) acid chlorides of high molecular weight, for example phenylacetyl chloride and toluoyl chloride, (3) esters such as methyl and ethyl lactates, methyl, dimethyl, ethyl and diethyl tartrates and ethyl, dimethyl and trimethyl citrates, substituted malonates of the type <FORM:0355130/V/1> such as diethylisosuccinate, esters of the type of monoformin and cyclic double esters of hydroxy acids such as lactides, glycollides and polyglycollides, (4) compounds of the type of glycerotriphosphoric acid (C3H5 PO4), (5) alkali or alkaline-earth salts such as the calcium hydrogen phosphates and alkali salts of chloro-fatty acids such as potassium chloracetate.  A standardizing material such as sugar may be added.  In making jellies, the pectin preparation is mixed with water and sugar with the addition of fruit juice if desired and heated to a temperature above 120 DEG  F., after which the batch is skimmed and placed in containers.ALSO:A dry pectin preparation, suitable for use in making jellies, jams and marmalade, is made by incorporating with solid pectin a material other than a free acid and substantially inert in the dry state, but capable of yielding an edible acidulant when heated with water.  Suitable substances are (1) acid anhydrides, for example acetic, propionic, maleic, methylene citric, succinic, adipic, glutaric, and diglycollic anhydrides, (2) acid chlorides of high molecular weight, for example phenylacetyl chloride and toluoyl chloride, (3) esters such as methyl and ethyl lactates, methyl, dimethyl, ethyl and diethyl tartrates and ethyl, dimethyl and trimethyl citrates, substituted malonates of the type <FORM:0355130/VI/1> such as diethylisosuccinate, esters of the type of monoformin and cyclic double esters of hydroxy acids such as lactides, glycollides and polyglycollides, (4) compounds of the type of glycerotriphosphoric acid (C3H5 PO4), (5) alkali or alkaline-earth salts such as the calcium hydrogen phosphates and alkali salts of chloro-fatty acids such as potassium chloracetate.  A standardizing material such as sugar may be added.  In making jellies, the pectin preparation is mixed with water and sugar with the addition of fruit juice if desired and heated to a temperature above 120 DEG  F., after which the batch is skimmed and placed in containers.