US1801449A - Apparatus for testing explosives - Google Patents

Apparatus for testing explosives Download PDF

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Publication number
US1801449A
US1801449A US303088A US30308828A US1801449A US 1801449 A US1801449 A US 1801449A US 303088 A US303088 A US 303088A US 30308828 A US30308828 A US 30308828A US 1801449 A US1801449 A US 1801449A
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tube
tubes
explosive train
testing
explosive
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US303088A
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Olsen Fredrich
Clarence J Bain
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/22—Fuels; Explosives
    • G01N33/227—Explosives, e.g. combustive properties thereof

Definitions

  • This invention relates to an apparatus for testing ex losives.
  • the obJect of this invention is to provide an a paratus into which an explosive train may be quickly and conveniently loaded for m the purpose of testin its efficiency and effectiveness under di erent conditions and the rateiof detonation of an'explosive constituting an element of the train.
  • Fig. l is a longitudinal sectional view of the improved apparatus and Fig. 2 is an enlarged, sectional view of the central portion of the apparatus.
  • the apparatus consists of a series of adjustabl connected tubes, the bores of the end tu es 5 and 6 being of less diameter than the bore ofv the intermediate tube 7 and servin to confine between their ends elements 0 an explosive train which are disposed within the tube 7.
  • the tube 5, which acts as a guide for a drop weight 8 is threaded internally to the intermediate tube while the tube 6, which contains a bursting charge 9, is attached to the intermediate tube by a coupling sleeve 10.
  • the lower end of the tube 6 is closed by a cap 11.
  • the explosive train confined within the tube 7 consists of a block 12, mounting a firing pin 13, a carrier 14 in which is placed a detonator l5, and a casing 16 containing a booster charge 17.
  • a detonator l5 in which is placed a detonator l5, and a casing 16 containing a booster charge 17.
  • an imperforate disk or disks 18 interposed between the detonator and the booster and a ring 19 placed between the booster and the bursting charge to establish an air gap 20.
  • the disk and ring may be interchanged and their thickness varied in conducting comparative tests to determine the efficiency of the detonator and booster.
  • 0 spaced wires 21 are inserted through the charge and its tube and are in operative connection with a recording device (not shown) which will register the time of movement of the wires.
  • the apparatus is functioned by removing a pin 22 which allows the drop weight to strik2e the firing pin normally held by a shear pin
  • a testing apparatus including a container formed of adjustably connected tubes, the bores of the end tubes being smaller than the bore of an intermediate tube, a bursting charge chamber constituted by one end tube, an external coupling between said tube and the intermediate tube, spaced impulse transmitting members in the bursting chamber, members arranged to carry an explosive train confined between the end tubes, separating members positionable between the individual elements of the explosive train members and between an end explosive train member and bursting charge chamber and means in the other end tube for functioning the explosive train.
  • a testing ap aratus including a' container formed of a justably connected tubes, the bores of the end tubes being smaller than the bore of an intermediate tube, a bursting charge chamber constituted by one end tube, an external coupling between said tube and the intermediate tube, members ar ranged to carry an explosive train confined between the end tubes, separating members '3 positionable between the individual elements of the explosive train members and between an end explosive train member and burstin charge chamber and means in the other en tube for functioning the explosive train.
  • a testing apparatus including a container formed of adjustably connected tubes, the bores of the end tubes being smaller than the bore of an intermediate tube, a bursting charge chamber constituted by one end tube, an external coupling between said tube and the intermediate tube, members arranged to carry an explosive train confined between the end tubes and means in the other end tube for functioning the explosive train. 4.
  • a testing apparatus including a con tainer formed of adjustably connected tubes, the bores of the end tubes being smaller than the bore of an intermediate tube, a bursting charge chamber constituted by one end tube, an explosive train carrier confined between the end tubes and means in the other end tube for functioning the explosive train. 5.
  • a testing apparatus embodying spaced tubes, a hollow member connecting the tubes and a carrier arranged to contain an explosive to be tested wholly confined within the hollow member and between the tubes.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Description

Aprifi 21, 1931. F. OLSEN ET AL- APPARATUS FOR TESTING EXPLOSIVES Filed Aug. 30, 1928 I gwvznlo'w' Fredrinh Ellsen Clarence LLEain W aflkyumug 7'0 RECORDER Patented Apr'. 21, 1931 UNITED STATES PATENT OFFICE FREDRIGH OLSEN AND CLARENCE J'. BAIN, DOVER, NEW JERSEY APPARATUS FOR TESTING EXPLOSIVES Application filed August 30, 1928. Serial No. 303,088.
(GRANTED UNDER THE ACT OF MARCH 3, 1883, AS AMENDED APRIL 80, 1928 370 0. G. 757) The invention described herein may be manufactured and used by or for the Government for governmental purposes, without-the payment to us of any royalty thereon.
This invention relates to an apparatus for testing ex losives.
The obJect of this invention is to provide an a paratus into which an explosive train may be quickly and conveniently loaded for m the purpose of testin its efficiency and effectiveness under di erent conditions and the rateiof detonation of an'explosive constituting an element of the train.
With the foregoing and other objects in view, the invention resides in the novel arrangement and combination of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.
A practical embodiment of the invention is illustrated in the accompanying drawings, 25 wherein:
Fig. l is a longitudinal sectional view of the improved apparatus and Fig. 2 is an enlarged, sectional view of the central portion of the apparatus.
Referring to the drawings by numerals of reference:
The apparatus consists of a series of adjustabl connected tubes, the bores of the end tu es 5 and 6 being of less diameter than the bore ofv the intermediate tube 7 and servin to confine between their ends elements 0 an explosive train which are disposed within the tube 7. The tube 5, which acts as a guide for a drop weight 8 is threaded internally to the intermediate tube While the tube 6, which contains a bursting charge 9, is attached to the intermediate tube by a coupling sleeve 10. The lower end of the tube 6 is closed by a cap 11.
The explosive train confined within the tube 7 consists of a block 12, mounting a firing pin 13, a carrier 14 in which is placed a detonator l5, and a casing 16 containing a booster charge 17. In the assembly of 5 these units there is shown an imperforate disk or disks 18 interposed between the detonator and the booster and a ring 19 placed between the booster and the bursting charge to establish an air gap 20. The disk and ring may be interchanged and their thickness varied in conducting comparative tests to determine the efficiency of the detonator and booster.
In order that the rate of transmission of the detonating wave may be ascertained, 0 spaced wires 21 are inserted through the charge and its tube and are in operative connection with a recording device (not shown) which will register the time of movement of the wires. a
, Tests on the bursting charge and its container and on the effectiveness of individual elements of the explosive train and its holders or of various combinations of particular elements may readily be conducted. '70
The apparatus is functioned by removing a pin 22 which allows the drop weight to strik2e the firing pin normally held by a shear pin We claim:
1. A testing apparatus including a container formed of adjustably connected tubes, the bores of the end tubes being smaller than the bore of an intermediate tube, a bursting charge chamber constituted by one end tube, an external coupling between said tube and the intermediate tube, spaced impulse transmitting members in the bursting chamber, members arranged to carry an explosive train confined between the end tubes, separating members positionable between the individual elements of the explosive train members and between an end explosive train member and bursting charge chamber and means in the other end tube for functioning the explosive train.
2. A testing ap aratus including a' container formed of a justably connected tubes, the bores of the end tubes being smaller than the bore of an intermediate tube, a bursting charge chamber constituted by one end tube, an external coupling between said tube and the intermediate tube, members ar ranged to carry an explosive train confined between the end tubes, separating members '3 positionable between the individual elements of the explosive train members and between an end explosive train member and burstin charge chamber and means in the other en tube for functioning the explosive train.
3. A testing apparatus including a container formed of adjustably connected tubes, the bores of the end tubes being smaller than the bore of an intermediate tube, a bursting charge chamber constituted by one end tube, an external coupling between said tube and the intermediate tube, members arranged to carry an explosive train confined between the end tubes and means in the other end tube for functioning the explosive train. 4. A testing apparatus including a con tainer formed of adjustably connected tubes, the bores of the end tubes being smaller than the bore of an intermediate tube, a bursting charge chamber constituted by one end tube, an explosive train carrier confined between the end tubes and means in the other end tube for functioning the explosive train. 5. A testing apparatus embodying spaced tubes, a hollow member connecting the tubes and a carrier arranged to contain an explosive to be tested wholly confined within the hollow member and between the tubes.
FREDRICH OLSEN. CLARENCE J. BAIN.
US303088A 1928-08-30 1928-08-30 Apparatus for testing explosives Expired - Lifetime US1801449A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2464179A (en) * 1943-09-02 1949-03-08 Clarence N Hickman Smokeless powder tester
US2478659A (en) * 1944-11-18 1949-08-09 Battelle Memorial Institute Apparatus for erosion testing
US2483803A (en) * 1946-11-22 1949-10-04 Norton Co High-pressure and high-temperature test apparatus
US2720780A (en) * 1952-10-31 1955-10-18 George G Garman Test set for explosives
US2832213A (en) * 1955-10-20 1958-04-29 Jr James B Cole Booster-gap explosive sensitivity test device
US2983135A (en) * 1958-09-16 1961-05-09 Frederick A Zihlman Propellant ignitability testing device
US3034335A (en) * 1959-01-02 1962-05-15 Hollis L Muller Primer testing device
US3056279A (en) * 1959-10-22 1962-10-02 Thiokol Chemical Corp Apparatus for impact testing
US3380297A (en) * 1965-12-03 1968-04-30 Army Usa Fuze-testing apparatus
US6354137B1 (en) * 2001-02-09 2002-03-12 The United States Of America As Represented By The Secretary Of The Navy Inertial confinement cylinder for explosive characterization
US8161799B1 (en) * 2008-09-30 2012-04-24 The United States Of America As Represented By The Secretary Of The Navy Apparatus and methods for evaluation of energetic materials
CN104316667A (en) * 2014-09-18 2015-01-28 西安近代化学研究所 Projectile charge compression environment simulation test device

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2464179A (en) * 1943-09-02 1949-03-08 Clarence N Hickman Smokeless powder tester
US2478659A (en) * 1944-11-18 1949-08-09 Battelle Memorial Institute Apparatus for erosion testing
US2483803A (en) * 1946-11-22 1949-10-04 Norton Co High-pressure and high-temperature test apparatus
US2720780A (en) * 1952-10-31 1955-10-18 George G Garman Test set for explosives
US2832213A (en) * 1955-10-20 1958-04-29 Jr James B Cole Booster-gap explosive sensitivity test device
US2983135A (en) * 1958-09-16 1961-05-09 Frederick A Zihlman Propellant ignitability testing device
US3034335A (en) * 1959-01-02 1962-05-15 Hollis L Muller Primer testing device
US3056279A (en) * 1959-10-22 1962-10-02 Thiokol Chemical Corp Apparatus for impact testing
US3380297A (en) * 1965-12-03 1968-04-30 Army Usa Fuze-testing apparatus
US6354137B1 (en) * 2001-02-09 2002-03-12 The United States Of America As Represented By The Secretary Of The Navy Inertial confinement cylinder for explosive characterization
US8161799B1 (en) * 2008-09-30 2012-04-24 The United States Of America As Represented By The Secretary Of The Navy Apparatus and methods for evaluation of energetic materials
CN104316667A (en) * 2014-09-18 2015-01-28 西安近代化学研究所 Projectile charge compression environment simulation test device
CN104316667B (en) * 2014-09-18 2016-01-13 西安近代化学研究所 Bursting charge compression environmental simulation test device

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