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1. 发明专利

AU2876397A Propeller mounted exhaust baffle 未知
公开(公告)号：AU2876397A
公开(公告)日：1998-02-05
申请号：AU2876397
申请日：1997-07-21
申请人： DONALD PETER HOLLOWAY
发明人： HOLLOWAY DONALD PETER
IPC分类号： B63H20/24

2. 发明专利

BR8401205A 未知
公开(公告)号：BR8401205A
公开(公告)日：1984-10-02
申请号：BR8401205
申请日：1984-03-16
申请人： DONALD PETER GRABER
发明人： GRABER DONALD PETER
IPC分类号： G08B25/00

3. 发明专利

GB867580A Improvements in extensometer measuring means 未知
公开(公告)号：GB867580A
公开(公告)日：1961-05-10
申请号：GB742557
申请日：1957-03-06
申请人： A E I I JOHN THOMPSON NUCLEAR , GEORGE HERBERT SHEPHERD , DONALD PETER STAIT
IPC分类号： G01B7/24 , G01D5/245
摘要： 867,580. Strain gauges. A.E.I. - JOHN THOMPSON NUCLEAR ENERGY CO. Ltd., SHEPHERD, G. H., and STAIT, D. P. March 6, 1958 [March 6, 1957], No. 7425/57. Class 106 (2). [Also in Group XXXV] An extensometer comprises two relatively slidable members 1, 2, a head 5 secured to one member 2, and means (not shown) for generating a magneto-motive force in the head 5 which is provided with a laminated face over which a portion 6 of a third member 7 passes, thus completing successive magnetic flux paths for the M.M.F., the magnitude of the movement between the members 1, 2 being determined by counting the number of magnetic flux pulsations in the head 5. The M.M.F. is provided by a coil (not shown) which embraces the laminµ, alternate laminµ being non-magnetic, or alternatively each lamina may be provided with its own coil. To obtain a vernier indication, the portion 6 of the third member 7 may be provided with a plurality of fingers spaced apart rather more than the laminµ.

4. 发明专利

GB654764A Hydroxylation of olefinic compounds 未知
公开(公告)号：GB654764A
公开(公告)日：1951-06-27
申请号：GB335048
申请日：1948-02-05
申请人： DISTILLERS CO YEAST LTD , DONALD PETER YOUNG
IPC分类号： C07C31/18
摘要： Compounds having at least two hydroxyl groups attached to two adjacent carbon atoms are manufactured by the hydroxylation of compounds with one olefinic link with aqueous hydrogen peroxide in the presence of a catalyst, initially in the form of tungsten oxide and/or molybdenum oxide, at a temperature between 50 DEG and 100 DEG C. The reaction may be carried out with or without the presence of an inert organic water-miscible diluent, e.g. acetone, tertiary butanol, dioxane or acetic acid. Olefinic compounds which may be used as starting materials are hydrocarbons such as n-oct-1-ene cyclohexene, but-1-ene, 2 : 4 : 4-trimethyl-pent-1-ene, 2 : 4 : 4-trimethyl-pent-2-ene and 4-ethyl-pent-2-ene; alcohols such as allyl alcohol, crotyl alcohol, but-3-en-2-ol, pent-3-en-2-ol and 4-methyl-pent-4-en-2-ol and olefinic acids such as acrylic acid, crotonic acid and maleic acid. Olefinic aldehydes such as acrolein and crotonaldehyde may also be hydroxylated in this way but they may be oxidized simultaneously to the corresponding acids. When acetic acid is used as a diluent it is desirable to react it first with the hydrogen peroxide, dissolve the tungstic and/or molybdic oxide therein and then react the mixture with the olefinic compound. In the examples: (a) glycerol is prepared from allyl alcohol; (b) butane-1,2,3-triol is prepared from crotyl alcohol; (c) 1.2-dihydroxybutyric acid is prepared from crotonic acid; (d) octane-1.2-diol is prepared from n-oct-1-ene; (e) trans-cyclohexane-1.2-diol is prepared from 3-ethyl-pent-2-ene by the action of aqueous hydrogen peroxide in the presence of a catalyst as described above. Specification 508,526 is referred to.

5. 发明专利

GB621097A Improvements in or relating to dark trace tubes and the operation thereof 未知
公开(公告)号：GB621097A
公开(公告)日：1949-04-04
申请号：GB399647
申请日：1947-02-11
申请人： SCOPHONY LTD , GUSTAV WIKKENHAUSER , DONALD PETER FRANKLIN
IPC分类号： H01J29/14
摘要： 621,097. Discharge apparatus. SCOPHONY, Ltd.,. WIKKENHAUSER, G., and FRANKLIN, D. P. Feb. 11, 1947, No. 3996. [Class 39 (i)] [Also in Group XL (b)] The removal of opacity centres formed in a screen of dark trace material by the impingement of radiant energy is carried out by dielectric heating. The crystalline material is mounted on a plate of glass, silicone or other material having a sufficiently high dielectric loss constant, enclosed between two electrodes, e.g. two metal grids of parallel wires, one disposed at right angles to the other giving a square ruling which may be utilized for the evaluation of oscillograms. Alternatively, the grids may be formed by ruling the glass plate on both sides and depositing a metal such as silver or platinum in the ruled grooves, or by depositing very thin metal layers on the two main surfaces of the plate, or having one surface ruled and the other surface bearing a continuous layer. Specifications 513,776 and 524,230 are referred to.

6. 发明专利

GB581153A Production of amino-hydrazines 未知
公开(公告)号：GB581153A
公开(公告)日：1946-10-02
申请号：GB1230944
申请日：1944-06-28
申请人： JAMES GORDON NAPIER DREWITT , DONALD PETER YOUNG
IPC分类号： C07D237/32
摘要： Aminohydrazines of the formula NH2RN2H3 are obtained by reacting with hydrazine a substituted ester of the formula ANRX, where AN is a dicarboxyacylimido group, e.g. diacetimido, succinimido or phthalimido, X a negative radical of a strong acid, e.g. a halogen, hydrogen sulphate or para-toluene sulphonate and R an aliphatic radicle. The latter may be branched chain or cycloalkyl and may be substituted, e.g. with a hydroxy group. The chain may also be interrupted by oxygen, sulphur or other atoms or by an aryl radicle. An intermediate hydrazinohydrazide compound may be first formed, but this is readily hydrolysed with aqueous mineral acid to the aminohydrazine and, for example phthalhydrazide. In the example, potassium phthalimide and hexamethylene dichloride are heated under reflux in an atmosphere of nitrogen. The product is distilled and the residue extracted by light petroleum, from which 6-chlorohexyl phthalimide is crystallized. The bromo compound can be prepared similarly. The 6-chlorohexylphthalimide is warmed with alcoholic hydrazine hydrate solution, and the solution then acidified with hydrochloric acid and refluxed. The phthalyl hydrazide is filtered off and the filtrate further acidified with hydrochloric acid, evaporated in vacuo and hydrazine dihydrochloride removed as it forms. The residue is dried by azeotroping with benzene and recrystallized from alcoholic hydrogen chloride giving 6-aminohexylhydrazine dihydrochloride. The product may also be recovered by distillation or extraction. Residual hydrazine may be removed by treatment with benzaldehyde which reacts preferentially with the organic hydrazine product to give a benzalazine. Other examples of substituted esters which may be used are 2-chloro-ethyl-, 3-chloropropyl-, 4-chlorobutyl-, 5 - chloro - p - methylamyl-, 4 - chlorocyclohexyl, o - chloro - p - xylenyl-, 2 - chloroethoxyethyl - phthalimides and the corresponding bromo derivatives. They may be made by reacting an aliphatic dihalide with phthalimide in the presence of anhydrous alkali, e.g. potassium carbonate. An anhydrous solvent such as alcohol may be used. In the Provisional Specification, the production of compounds of the formula NH2RN(NH2)RNH2 by reacting the phthalimide derivative with a small amount of hydrazine is described.

7. 发明专利

CA2397220A1 PORTABLE FOOT REST 未知
公开(公告)号：CA2397220A1
公开(公告)日：2003-02-16
申请号：CA2397220
申请日：2002-08-08
申请人： AZAR GROUP INTERNAT INC , CAROM DONALD PETER
发明人： CAROM DONALD PETER
IPC分类号： A47C16/02
摘要： The invention is a portable foot rest made from flexible foam. A first a nd second planar upper surface are at an angle to each other, forming a ledge f or placement of the user's feet. Four planar side surfaces are perpendicular to the floor when the foot rest is placed on the floor. The bottom of the foot rest is a seventh planar surface.

8. 发明专利

AU5260796A Tank drain valve with a rod concentric with valve member to pierce sedimentary layer in tank 未知
公开(公告)号：AU5260796A
公开(公告)日：1996-10-30
申请号：AU5260796
申请日：1996-04-11
申请人： DONALD PETER WATT
发明人： WATT DONALD PETER
IPC分类号： F16K29/00 , F16K51/00

9. 发明专利

CA2355092A1 FOOT REST 未知
公开(公告)号：CA2355092A1
公开(公告)日：2003-02-16
申请号：CA2355092
申请日：2001-08-16
申请人： CAROM DONALD PETER , AZAR GROUP INTERNAT INC
发明人： CAROM DONALD PETER
IPC分类号： A47C16/02
摘要： The invention is a portable foot rest made from flexible foam. A first a nd second planar upper surface are at an angle to each other, forming a ledge f or placement of the user's feet. Four planar side surfaces are perpendicular to the floor when the foot rest is placed on the floor. The bottom of the foot rest is a seventh planar surface.

10. 发明专利

GB867222A Improvements in micrometer screw measuring means 未知
公开(公告)号：GB867222A
公开(公告)日：1961-05-03
申请号：GB742457
申请日：1957-03-06
申请人： THOMPSON NUCLEAR ENERGY CO LTD , GEORGE HERBERT SHEPHERD , DONALD PETER STAIT
IPC分类号： G01B3/18 , G01D5/46
摘要： 867,222. Pneumatic gauging; vernier equivalents. A.E.I.-JOHN THOMPSON NUCLEAR ENERGY CO. Ltd., SHEPHERD, G. H., and STAIT, D. P. March 6, 1958 [March 6, 1957], No. 7424/57. Class 106 (2). A micrometer screw gauge includes a rotatable head 5 having a toothed periphery together with at least one nozzle 8 close to the periphery arranged to direct a fluid jet on to the tooth so that passage of a tooth in front of the nozzle 8 causes a pulse-like pressure rise, and means not shown for counting the pulses. The head 5 rotates with the micrometer spindle. A number of nozzles 8, 9, 10 spaced apart slightly more than the teeth provide a vernier effect, and two additional nozzles 13, 14 provide means for rotating the head 5. Alternatively, the head can be rotated by a torsion-spring or any other reversible means.

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