baber/WOPTO huggingface dataset:
Patent GB-690546-A (GB)
Title: Improvements in the manufacture of low polymers of glycidyl sorbate
Filed: 1947-09-04
Abstract: Dimers of glycidyl sorbate are obtained by heating glycidyl sorbate at an elevated temperature for a few hours.  The product appears to be comprised chiefly of the diglycidyl esters of 5-methyl-6-propenyl tetrahydrophthalic acid and 2-propenyl-6-methyl tetrahydroisophthalic acid resulting from the diene condensation of two molecules of glycidyl sorbate, and small quantities of trimers or tetramers may also be present.  The dimerization may be effected by heating to 180-200 DEG  C. for three to five hours but higher or lower temperatures with a shorter or longer period may also be used.  It is preferred to carry out the dimerization in an inert atmosphere, e.g. of nitrogen or one of the inert gases such as neon or argon.  The low polymer product may be used directly as a heat stabilizer for chlorine-containing resins or it may first be distilled to strip off the unchanged monomer.  In examples the dimerization is effected by heating the monomer at 180-200 DEG  C. in an atmosphere of nitrogen for 4 hours and 4 to 5 hours respectively and fractionally distilling the resulting mixture.  Glycidyl sorbate may be obtained by heating dry potassium sorbate with epichlorhydrin.  An excess of the latter may be used as solvent or diluent and the reaction may be carried out by heating the reactants at the refluxing temperature of the epichlorhydrin preferably in the presence of a tertiary amine as catalyst, e.g. triethylamine, tributylamine, N-methyl (or N-ethyl) morpholine, or pyridine.  The preferred reaction temperature is 100-130 DEG  C. and it is advantageous to carry out the reaction in an inert atmosphere, e.g. of nitrogen, carbon dioxide, or an inert gas.  In examples for preparing the monomer: (1) a suspension of potassium sorbate in an excess of epichlorhydrin is refluxed with stirring for 16 hours while passing a stream of nitrogen through the reaction vessel.  The potassium chloride formed is filtered off, the excess epichlorhydrin recovered by distillation and the remaining product fractionally distilled to yield the monomer; (2) as in (1) except that triethylamine is present as catalyst and the mixture is refluxed for 2 hours.  It is stated that instead of potassium sorbate, the dry salt of other alkali metals may be used, e.g. of lithium or sodium.  Specifications 638,516 and 648,959 are referred to.
Patent GB-599436-A (GB)
Title: Improvements in or relating to fuzing units for use in dropping bombs from aircraft
IPC: B64D1/04
Filed: 1944-12-06
Abstract: 599,436. Fuzing bombs. CONNELL, I. L., [Representative of CONNELL, F. T.], and JONES, J. M. Dec. 6, 1944, No. 24448. [Classes 9 (i) and 9 (ii)] In a fuzing unit for dropping bombs from aircraft in which a fuzing wire is attached to a safety pin &c., associated with the arming mechanism of the bomb and in which when the bomb drops " live " the fuzing wire is retained by the fuzing unit on the aircraft and when dropped " safe " the fuzing wire is detached from the fuzing unit and falls with the bomb, the fuzing wire is adapted to be drawn into the aircraft when the bomb is dropped "live" and is allowed to run away freely when the bomb is dropped "safe". The fuzing wire 24 is wound one turn on another in a groove 23 in a drum 1 adapted to be tensioned by a spring 33 and locked against rotation in a paying out direction by a ratchet ring 22 and a pawl 10. The drum is initially tensioned by rotating it and is held by a spring-loaded detent 28 on the drum engaging a stop plate 12. A ball on the end of the wire is adapted to be introduced into a tangential channel leading to the bottom of the groove 23 and raises the detent 28, one end of which enters the channel through an aperture, and thus releases the drum, allowing the spring 33 to turn the drum and wind-in the wire. A spring clip on the other end of the wire is attached to the bomb safety pin. The pawl 10 is adapted to be moved into operative position through a loading spring 11 by the armature 8, pivoted at 9, of electromagnets 4, energized by the bomb-aimer when the bomb is to be dropped " live " in which case the drum is locked against rotation and the safety pin is withdrawn from the bomb, after which the spring 33 winds in the wire 24 on the drum until a spring shock-absorber on the end of the wire engages the fair lead, at the entrance of the tangential channel. To drop the bomb " safe " the magnets 4 are not energized and under the pull of the falling bomb the wire is drawn off the drum and rotates it until the ball on the end of the wire is released through the tangential channel and the wire falls with the bomb. The spring detent retains the drum in wound condition ready for the insertion of a new wire 24.
Patent GB-599119-A (GB)
Title: Improvements relating to the manufacture of ungummed cigarette papers
IPC: A24F17/00
Filed: 1945-09-21
Abstract: 599,119. Cigarette papers. BOOTH, R. N. Sept. 21, 1945, No. 24506. [Class 96] [Also in Group VI] Ungummed cigarette papers having fibrous side edges, which make a secure seam when moistened, are formed by tearing a paper strip along moistened transverse lines. The strip a having a width corresponding to the length of the cigarettes, is fed by rollers d, e on to a wetting device comprising a roller f having ribs f<1>, f<2>, preferably of rubber, wetted by a roller g from a roller h dipping into a counterweighted tank i containing water to which starch has been added. The ribs f<1>, f<2> when wetting the paper press it against a backing roller and rollers k, k<1> pass the paper to a tearing device comprising rollers l, l<1> rotating at a higher speed. The rollers are arranged to give a snatch action before the following paper is moistened. A belt m conveys the cigarette paper to a point where a blade q falls and pushes it between a vertical part of the belt m and a further belt o which deposit the folded paper on a notch r<1> of an interleaving drum r. Alternatively, the belt m may deposit the paper in a collecting tray.
Patent GB-322209-A (GB)
Title: Improvements in the manufacture and production of azine derivatives
IPC: C09B17/00
Filed: 1928-08-27
Abstract: 322,209. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Aug. 27, 1928. Naphthazine derivatives.-The sulphonic acid derivatives of 1: 2-naphthophenazine and of 1 : 2 : 1<1> : 2'-dinaphthazine are converted to the corresponding hydroxy derivatives by heating with dilute caustic alkali solutions containing up to 10 per cent of caustic alkali. The reaction is preferably carried out under pressure and may be effected together with the production of the starting material in one operation. Generally, the use of the theoretical quantity of alkali is sufficient. In examples, the sodium salts of 1:2:1<1>:2<1>-dinaphthazine-8 : 8<1>- and 5: 5<1>-disulphonic acids and of 1 : 2-naphthophenazine-6- sulphonic acid (obtained from 1.2-naphthoquinone and o-phenylene diamine) are heated with dilute caustic soda lye to yield the corresponding hydroxy derivatives. The sodium salt of 2- naphthylamine-8-sulphonic acid is first heated with a solution of sodium hydroxide and hypochlorite and the resulting dinaphthazine, after further diluting the solution, is heated under pressure to give 8: 8<1>-dihydroxy-1: 2 : 1<1> : 2'-dinaphthazine. The Provisional Specification refers also to the treatment of any azine sulphonic acids with dilute caustic alkalis.
Patent GB-142396-A (GB)
Title: An improved sparking plug
IPC: H01T13/16
Filed: 1919-10-08
Abstract: 142,396. Dubreuil, G., and Nachon, E. L. Oct. 8, 1919. Cable and wire terminals; couplings. - The lead from the source of current is connected to a sparking- plug by a forked member p inserted beneath a washer r which seats itself within a recess p<1>.
Patent GB-425224-A (GB)
Title: Improvements in devices for applying liquids to the surfaces of cylinders, rolls or the like
IPC: D21G7/00
Filed: 1933-09-06
Abstract: 425,224. Water doctors &c. for papermaking machines &c. BRAY, E. E., Hil-de- Brae, Corbets Tey Road, Upminster, Essex, and WATFORD ENGINEERING WORKS, Ltd., -Lower High Street, Watford, Hertfordshire. Sept. 6, 1933, No. 24746. [Classes 96] A doctor &c. supplying water &c. to the surfaces of cylinders, calender rolls 12 &c. of papermaking machines &c., comprises an upper deliverychannel 10 tapering towards the front end or roll 12, and with a liquid overflow at the back, and a well 11, below the back of the channel 10, with inlet-apertures 30 for water &c. Water &c. supplied through a pipe 27 to a compartment 26 flows through the narrow slots 30, and past baffles 23, a watertight contact being made with the roll 12 by a felt gasket 19 held in place by a strip 20 and bolts 21. Water &c. overflows at a weir 34 adjusted in height by a series of hand-wheels 48 and pressed against the back wall 14 of the reservoir and packing 49, by a U-shaped spring 36, surplus flowing off at 50. A tray 52 collects water of condensation which is drained at 56. The doctor pivots about trunnions 60.
Patent GB-1300884-A (GB)
Title: Projector control apparatus
Inventor: FIGGE ERWIN E
IPC: G03B21/32
Filed: 1971-04-19
Abstract: 1300884 Cinematography BELL & HOWELL CO 19 April 1971 [23 March 1970] 24792/71 Heading G2E A projector 14 able to receive a film cartridge 16 is of the type able to accept different types of film e.g. in size, soundtrack type and projection speeds. The projector is adapted to be programmed automatically for the type of film to be projected by means of pairs of contacts 30, 32; 34, 36; 38, 40; 42, 44 exposed in the reception area for the film cartridge 16. The cartridges used are fitted with labels 20 having conductive elements 22, 24, 26, 28 so that when the cartridge is fitted to the projection the elements 22- 28 close their respective pair of contacts 30-44. The number and positions of the elements on the label 20 depends on the type of film to be projected and the logic circuitry of the projection 14.
Patent GB-384717-A (GB)
Title: Improvements relating to glass structures such as show cases, shop fronts, and the li
IPC: A47F3/00
Filed: 1931-09-04
Abstract: 384,717. Shop fronts ; glazing. DUTFIELD, A. E., The Cottage, Fayland Avenue, Streatham Park, London. Sept. 4, 1931, Nos. 24901 and 27848. [Class 20 (iii).] A display cabinet, show-case, or shop front comprises glass sheets held in edge-abutting relation by interior vertical pillars having adjustable brackets provided with outwardly directed stems passing through holes in the sheets and secured by external screws or nuts. Four pillars A resting on foot-plate B are provided with tubular spacers C on which a floor-plate H rests. Each of two of the pillars A carries two right-angled brackets D, provided with screw-threaded stems d and each of the other two pillars carries two plain brackets D<1> provided with stems d<1>. The stems d, d<1> pass through holes in the walls F and are secured by screws E. A roof-plate G is fitted over the top ends of the pillars A and secured by nuts J. The front plate is slidably mounted between channel pieces K and is provided at its lower edge with a metal runner having at its ends a finger pull and a stop. Two or more relatively slidable front plates may be provided.
Patent GB-495139-A (GB)
Title: Improvements relating to loom shedding mechanism
IPC: D03C3/20
Filed: 1937-09-14
Abstract: 495,139. Loom shedding-mechanism. FISHER, G., and TANDLER, W. S. Sept. 14, 1937, No. 24971. Convention date, Sept. 17, 1936. [Class 142 (i)] The spring-controller needles 21 of a jacquard are connected by wires, cords, &c. 27 to thin metal control members 34 resting in grooves in a spindle 36 and formed with projections 38 for engagement by the hooks 39 of selectors 40 on a spindle 41. A carriage 44 movable across the loom on a support carries a spring-pressed roller which engages and reads a thin copper pattern sheet, having a pattern thereon in insulating varnish or paint, on a support rotated step-by-step. By connections described, current from an amplifier passes to an electromagnet 47 on the carriage when the roller engages a conductive part of the pattern sheet, and the spring-controlled armature bar 46 serving as a hammer engages the parts 42 of certain of the selectors, moving these to the right. As the carriage moves along the support, a first cam 45a moves all the selectors into engagement with a rib 44a, and then the hammer on the armature 46 displaces certain of these as shown at 42c, a second cam 45a then moving the displaced selectors further, as shown at 42b, into engagement with a rib 44b, and these selectors hook on to corresponding control members 34. The cords &c. 27 pass over a rod (not shown) aligned with the spindle 36 and then through openings 31 in a bar 32 which is moved vertically by an arm 60 and first raises all the members 34. When it falls, the unhooked members 34 also fall with it the corresponding cords 27 being substantially unaffected, but the other cords are pulled and the corresponding hooks are moved out of the path of the knives 19 so that a shed is formed when these rise. In a modification, the spring- controlled needles normally move the hooks out of the path of the knives. In another, the parts 27 are connected directly to the heddles. Photo-electric scanning mechanism may be used.
Patent GB-1502819-A (GB)
Title: Dual purpose spring coiling machine
IPC: B21F3/02
Filed: 1975-06-11
Abstract: 1502819 Spring coiling machines TORIN CORP 11 June 1975 [24 June 1974] 25006/75 Heading B3E A dual-purpose spring coiling machine of the kind having wire feed rolls 14, 16, Fig. 2, a guide 18 and one or two bending tools 64, 112 for forming a coil 61, is provided with a tool slide assembly 26 which can assume three different angular positions. The assembly can either be inclined at 22¢ degrees above or below the horizontal (to produce coils of opposite hand) or can assume a horizontal position, Fig. 5. In the latter position a single tool 168 is used which can be adjusted to provide coils of opposite hand. A pitch tool 24 displaces the wire laterally to form a coil. A horizontally extending arbor 20, Fig. 2, lies within the coil and co-operates with a cutter 22 to sever a finished coil. The assembly 26 includes an adjustable slide 28 to which a tool holder 48 is secured. The holder supports a body 56 which carries the tool 65 and can be pivotally adjusted about a pin 59. Additionally, the tool is adjustable axially, angularly about its axis, and angularly about an axis at right angles to the coil axis. The tool 112 is similarly mounted in a body 58 and holder 100. The holder is carried on the end of a lever 90 pivoted at 92 and coupled centrally to the slide 28. Adjustment of the slide therefore moves both tools simultaneously, with one tool moving approximately at right angles relative to the other. The slide 28 can be reciprocated in synchronism with the wire feed to produce a coil of varying diameter, movement of the slide being controlled by a profiled cam (Fig. 7, not shown).
Patent GB-1506185-A (GB)
Title: Match-head compositions
IPC: C06B45/00
Filed: 1975-06-11
Abstract: 1506185 Match-head compositions BRYANT & MAY Ltd 11 June 1976 [11 June 1975] 25019/75 Heading C1D A match-head composition of improved sensitivity and burning rate includes hollow microscopic particles of diameter 5-5000 microns in an amount of 1-33% by weight. The particles may be of glass, ceramic, carbon, or phenol-formaldehyde or epoxy resin. The match-head compositions described contain an oxidizer, together with combustible material, inert material, and a binder. Ingredients specified are potassium chlorate, zinc oxide, plaster of Paris, ground glass, feldspar, china clay, diatomaceous earth, sulphur, starch, gum arabic, gum tragacanth, phosphorus sesquisulphide, carbon black, charcoal, animal glue, iron oxide as a pigment, dyestuffs, manganese dioxide as a burning rate catalyst, potassium dichromate, hydroxyethyl cellulose, calcium resinate, and amorphous phosphorus. The composition may be used in the manufacture of safety or other types of matches, Bengal lights, lifeboat flamers, or selfignitable cigarettes. In "double-dip" matches, either or both of the compositions used may be according to the invention. The match heads may be waterproofed by coating with nitrocellulose or shellac.
Patent GB-866472-A (GB)
Title: Improvements relating to slot aerial arrays
Inventor: HAME TREVOR GORDON
IPC: H01Q21/00
Filed: 1956-08-15
Abstract: 866,472. Aerials. ELECTRIC & MUSICAL INDUSTRIES Ltd. Aug. 6, 1957 [Aug. 15, 1956], No. 25020/56. Class 40(7) In the formation of a slot array in the narrow face of a waveguide the slots normally extend into the broad faces of the guide in order to extend to the correct resonant length. For convenience in manufacture it is arranged, according to this invention, to cut reduced length slots in the narrow face only and to compensate for this by shaping them or filling them with dielectric material. In one embodiment the slots 2 are made of dumb-bell shape and spaced half a wavelength apart have regard to the energy in the waveguide. Adjacent slots are slanted in opposite directions to produce a broadside array. The slots may conveniently be formed by spark erosion using a multiple electrode tool head in which each electrode is appropriately shaped and correctly spaced and orientated. The use of ellipsoidal or circular "slots" which are reactive at the frequency of operation is also contemplated.
Patent GB-773637-A (GB)
Title: Aqueous penicillin suspension comprising inositol phosphoric acids and their salts
Inventor: BUCKWALTER FRANK HAROLD
IPC: A61K31/43
Filed: 1955-08-31
Abstract: An aqueous suspension, having increased stability and ease of resuspension, comprises a water-insoluble therapeutic salt of penicillin and an inesital phosphoric acid or a non-toxic salt thereof e.g. sodium phytate which may be present from 0.1 to 2 per cent of the preparation.  Suitable penicillin,salts are procaine benzyl penicillin, l-ephenamine penicillin, N.N1 dibenzylethylenediamine dipenicillin, dehydroabietylamine penicillin. N.N1-bis (dehydroabietyl) ethylene diamine penicillin, N-benzyl-betaphenethylamine penicillin, di-benzylamine penicillin, and procaine and other salts of penicillin G, F, X, O, dihydro F and K, or mixtures thereof.  The composition may also contain dispersing or suspending agents e.g. sodium carboxymethyl cellulose, lecithin, cholestrol, Falba, "Spans," "Tweens" (Registered Trade Marks) amercalls, sodium, potassium, ammonium or calcium alginates, propylene glycol alginate, alginic acid, polyoxyalkylene derivatives of sorbitol fatty acid esters, urea, sodium p-aminobenzoate, methylcellulose, polyvinyl alcohol, polyvinylpyrrolidene, gum tragacanth, gelatin, pectin, dextran, gum karaya, buffering agents e.g. phosphate, citrate buffers, preservatives e.g. phenol, cresol, methyl, ethyl, butyl or propyl paraben.
Patent GB-217818-A (GB)
Title: Improvements in or relating to oil pumps for internal combustion engines
IPC: F16N13/04
Filed: 1923-10-09
Abstract: 217.818. Prestwich, J. A. Oct. 9, 1923. Oscillating - cylinder pumps; regulating by opening suction valves. - An oil pump for internalcombustion engines comprises a casing a on one face d of wihich are formed an inlet port e open to the inlet passage b, and an outlet port open to the delivery passage c. The piston o is reciprocated by a crank pin p, and the cylinder oscillates on a pivot m which may be transversely adjusted by a screw n to cause the port t of the cylinder, which registers alternately with the inlet and outlet ports, to register for a variable period with the inlet port e during a portion of the delivery stroke. In the form shown in Fig. 3 the cylinder oscillates on one eccentric pin 2 on a rotatable member 3.
Patent GB-655335-A (GB)
Title: The preparation of new anthraquinone derivatives
IPC: C09B1/30
Filed: 1948-09-27
Abstract: Dyes of the formula <FORM:0655335/IV (c)/1> in which R is either hydrogen or an alkyl group of 1-4 carbon atoms, R1 and R2 are alkyl, aryl, or aralkyl, or are combined to complete a cycloaliphatic ring, W is -NH2, -OH, hydrogen, halogen, or alkoxy, or R3NH-, where R3 is alkyl, aryl, or aralkyl, or the group -CRH.C(OH)R1R2, X is halogen, hydrogen, or SO3H, Y is hydrogen, -OH, -NH2 or SO3H, and Z is hydrogen or -OH, are made by condensing an anthraquinone derivative having in 1-position a radical or element which is replaceable by an amino group by reaction with an amine, such as hydroxy, nitro, amino, alkoxy, sulpho, or halogen, and substituents W, X, Y and Z as defined above, with a hydroxyalkyl amine of the formula H2N.CHR.C(OH)R1R2. The anthraquinone starting material may be used in the form of its leuco compound with subsequent oxidation, and any other replaceable radicals or elements as defined above may be replaced by reaction with any alkylamine or alkylolamine.  In examples: (1) 3-amino-2-methyl-2-butanol is condensed with 1-chloranthraquinone, 1 - nitroanthraquinone, or anthraquinone-1-sodium sulphonate; alternative alkylolamines specified are 2-amino-3-methyl-3-pentanol, 2-amino-3.5-dimethyl-3-hexanol, and 1-(1-hydroxycyclohexyl)-ethylamine; (2) leuco-quinizarine is condensed with methylamine and 3-amino-2-methyl-2-butanol or 2-amino-3-ethyl-3-pentanol; the leuco-quinizarine may be replaced by the leuco-bodies of 1.4.5-trihydroxy-, 1.4.5.8-tetrahydroxy-, 1.4-diamino-, 1.4-aminohydroxy-, or 1.5-diamino-4.8-dihydroxy-anthraquinone; (3) 1-amino-4-bromo - anthraquinone - 2 - sodium sulphonate or 1 - amino - 2.4 - dibromo - anthraquinone sodium-5-sulphonate is condensed with 3-amino-2 - methyl - 2 - butanol, 3 - amino - 2 - methyl - 1 - phenyl - 2 - butanol, or 2 - amino - 3 - ethyl - 3 - pentanol; (4) leuco - 1.4 - diamino - anthraquinone is condensed with 3-amino-2-methyl-2-butanol. The products dye cellulose esters and ethers, oils, solvents, and plastics.  They may be sulphonated, or the hydroxyalkyl radical may be sulphated, or by dehydration of the tertiary carbinol group, unsaturated bodies may be formed.
Patent GB-882943-A (GB)
Title: Improvements relating to cushions, mattresses and the like
IPC: A47C27/14
Filed: 1957-08-12
Abstract: 882,943. Cushions; mattresses. DUNLOP RUBBER CO. Ltd. (Plym, G. A., and Smith, R. A.). Aug. 11, 1958 [Aug. 12, 1957], No. 25358/57. Class 52(4) A body of resilient material has cavitied portions 11 defined and separated from each other by portions 12 which are not provided with cavities and which are thicker than the walls between the cavities, the body being divided into mattresses and cushions, in a variety of sizes, by cutting along lines on the upper and side surfaces which indicate where division will not cut through the cavities. The lines are formed by interrupted or continuous grooves or ridges or by ink or paint lines. The resilient body consists of moulded foam rubber expanded synthetic resins, polyurethane foam or bonded "crumbs" or hair or other fibres. Specification 869,624 is referred to.