US139296A - Improvement in fire-proof safes - Google Patents

Improvement in fire-proof safes Download PDF

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US139296A
US139296A US139296DA US139296A US 139296 A US139296 A US 139296A US 139296D A US139296D A US 139296DA US 139296 A US139296 A US 139296A
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fire
air
improvement
chamber
proof safes
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00Ventilation
    • F24F7/04Ventilation with ducting systems, e.g. by double walls; with natural circulation

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  • Figure l ⁇ represents a perspective view of my invention, the outer wall of the air-chamber being broken awayto show ⁇ the safe A, and a portion of one of the tubes or iiues being also removed to show the location of the apertures in the rear Wall of the air-chamber.
  • Fig. 2 is a horizontal cross-section on the line oi' the eductionilue G.
  • A represents the safe proper, constructed generally in any proper manner, and provided with a suitable door, as shown in Fig. 1.
  • E represents an airchamber,formedV by walls of any proper material, which inclose the safe A upon all sides excepting its front.
  • B B Bv B are ilues, which communicate at their outer ends with the air-chamber E through apertures in the corner of the walls, and at their inner ends with the central eduction-iiueG, as shown.
  • the described construction is set in packing D, as shown in Fig. 2, in such manner that a space, F, is left between the door of the safe proper and an outer door, as

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Special Wing (AREA)

Description

N. CUNSTABLE.
Fire-Proof Safes. No. 139,296. Patentedmay27,1a73
WITNEssEs y mvEN-ron QZ-@MRZ @dla/K632i al M7 y www@ M75.
UNITED STATES NATHANIEL CONSTABLE, OF GARBOLLTON, ILLINOIS.
IMPROVEMENT IN FIRE-PROOF vSAFES.
Specication forming part of Letters Patent No. 139,296, dated May '27, 1873; application filed November 14, 1872.
To all whom it may concern:
" and apertures, as will be fully described hereinat'ter.
In the drawings, Figure l` represents a perspective view of my invention, the outer wall of the air-chamber being broken awayto show `the safe A, and a portion of one of the tubes or iiues being also removed to show the location of the apertures in the rear Wall of the air-chamber. Fig. 2 is a horizontal cross-section on the line oi' the eductionilue G.
To enable others skilled in the art to make and use my invention, I will now proceed to describe fully its construction and manner of operation.
A represents the safe proper, constructed generally in any proper manner, and provided with a suitable door, as shown in Fig. 1. E represents an airchamber,formedV by walls of any proper material, which inclose the safe A upon all sides excepting its front. B B Bv B are ilues, which communicate at their outer ends with the air-chamber E through apertures in the corner of the walls, and at their inner ends with the central eduction-iiueG, as shown. The described construction is set in packing D, as shown in Fig. 2, in such manner that a space, F, is left between the door of the safe proper and an outer door, as
lshown. This outer door is made to t loosely,
or perforations are made through it, as may be desired. Communication is also made between the air-chamber E and the space F by means of apertures a a, shown in dotted lines,
Fig. 1, in the front 4wall of the air-chamber.
By means of the described construction,
when the safe is exposed to heat from any cause, no matter what its position may be, a current of air is caused to pass through the air-chamber in one direction or the other, the heated air of course ascending, while the cold air ent-ers to supply its place. By this means any excess of heat is carried o, and its contents are prevented from injury.
'Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is
The box A, air-chamberV E, iiues B B B B and C, apertures a a a a a( a a a', with space F, constructed and arranged as described, A
for the purpose set forth.
This specification signed and witnessed this 8th day of November, 1872.
Witnesses: NATH-L. CON STABLE.
GHAs. D. MOODY, F. S. DAVENPORT.
US139296D Improvement in fire-proof safes Expired - Lifetime US139296A (en)

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