Патент USA US2127106код для вставки
Patented Aug. 16, 1938 ' UNITED 2,127,106 PATENT OFFICE STATES 2,127,106 PRIMARY DETONATING EXPLOSIVE ,, Leroy R. Carl, Buffalo, N. Y; No Drawing. Application September 15, 1937, Serial No. 163,917 6 Claims. This invention relates to primary detonating explosives or initiators for high explosives. I-Ieretofore mercury fulminate and lead azide have been used, substantially to the exclusion of (Cl. 52-2) In producing the primary detonating explosive forming the subject matter of the present inven tion, potassium chlorate and sulphur nitride are all other materials, as initiators for high ex mixed. I find that a mixture of equal propor tions of the materials produces a highly satis plosives. Each of these materials, while satis factory from the standpoint of performance, pos factory product, although these proportions may be widely varied. Satisfactory results may be sesses certain properties that are objectionable and e?orts have constantly been made to ?nd 10 suitable substitutes for them. I have found that a material heretofore be obtained with mixtures containing from 35 to 65 percent of sulphur nitride and from 65 to 35 per cent of potassium chlorate. The material is 10 mixed and then loaded under suitable pressure in the usual detonator casing, caps or tubes and employed to detonate high explosives in the same lieved to be incapable of detonating high explo sives can be used in conjunction with an oxygen carrier to produce a highly satisfactory primary 16 detonating explosive or initiator. The material which I propose to use is sulphur nitride, (N484). manner that the‘ known initiators or detonators are employed. It may be used to detonate any 15 type of high explosive, such as dynamite, tetryl, trinitrotoluol and other known high explosives. According to available literature, this material has heretofore been considered incapable of use as a detonator for high explosives. I have found 20 that by properly mixing it with an oxygen car rier that readily releases oxygen, such as potas sium chlorate, a very satisfactory initiator or The minimum quantity of the mixture which should be used to obtain satisfactory results is .15 gram. The charge of .15 gram is based upon a modern compound detonator having an inside diameter of approximately .22". A cup of this diameter requires a charge of approximately .21 gram of vmercury fulminate. In such devices the primary detonating explosive can be produced. I am aware that it has heretofore been pro posed to employ so-called oxidizing accelerators in combination with primary detonating explo primary detonating explosive is arranged in prox-v imity to a secondary detonating explosive. In the old type detonator, in which the primary det sives. The use of potassium chlorate in the pres ent material is- not to be confused with the use 5 onating explosive alone is used, a larger charge of it and similar salts in conjunction with the pri is required. In detonator casings of larger di 30 mary detonating explosives of the prior art. ameter a larger charge is also required but the 0 Where potassium chlorate and other salts have relation of the, size of the charge to the diameter been used in conjunction with primary detonat ' of the cup remains approximately a constant. ing explosives, such as mercury fulminate, the I claim: 1. A primary detonating composition compris material with which the salt is'mixed is capable of detonating high explosives alone and the addi ing sulphur nitride and an oxidizing agent se tion of potassium chlorate or other salt is not lected from the class consisting of alkali metal 5 for the purpose of making a material that would otherwise not be satisfactory as a- detonator capa - ble of such use. :40 chlorates and alkali metal bromates. 2. A primary detonating composition compris ing sulphur nitride and potassium chlorate. 3. A primary detonating composition compris ing from 35 to 65 percent sulphur nitride and it; from 65 to 35 percent potassium chlorate. As stated above, sulphur nitride alone is incapable of use as a primary detonating explosive and this has been pointed out frequent ly in the literature. I am aware of no prior in stance wherein a material in itself incapable of use as a detonator, can be employed as a primary detonating explosive when mixed with this or similar salts. While various oxygen carriers may be used em , 4. A primary detonating composition compris ing substantially 50 percent sulphur nitride and. substantially 50 percent potassium chlorate. 5. A primary detonating composition compris 45 ing sulphur nitride and sodium bromate. ployed with sulphur nitride to produce a satis; Y 6. A primary detonating composition compris factory primary detonating compound, I prefer ing sulphur nitride and sodium chlorate. 50 to use potassium chlorate. Other salts which will give satisfactory results are sodium chlorate, sodium bromate and potassium bromate. LEROY R. CARL.