US1902764A - Mail bag - Google Patents

Description

March 21,1933. J L E E 1,902,764

MAIL BAG Filed Nov. 8, 1929 2 Sheets-Sheet l \w 'IIIIIIIIIIIIII/Ill m l. dei

' INVENTOR ATTORNEY March 21, J VE MAIL BAG Filed Nov. 8, 1929 2 Sheets-Sheet 2 JZZZZ'Z SL $653216;

ATTORNEY Patented Mar. 21, 1933 UNI-TED -STA:TES

P NT OF E JULIUS L. m: GIVE, or ATLANTA, GEORGIA; HENRY DE GIVE-EXECUTOR or SAID JULIUS L. DE GIVE, DEGEASED MAIL BAG- Application filed November 8, 929. seria1]1vo. 4o5.756.

This invention relates to mail bags especially designed for air mail, an'object being to provide a bag which will be fireproof, water-proof and non-sinkable, so that the contents of the bag will be pre-V served in the event of an accident to the carrying plane resulting from fire, or otherthe means for preventing the bag from sinking.

Figure 3 is a plan view of Figure 2. V

Figure 4 is an enlarged fragmentary sectional view on the line 4-4 of Figure 1.

Figures 5 and 6 are sectional views showing different forms of buoyant members.

Figure 7 is an elevation of the inner water-proof bag.

Figure 8 is a top view of the same.

Figure 9 is an enlarged fragmentary sectional view taken substantially on the line 99 of Figure 7. V

Figure 10 is a fragmentary elevation showing a different means for holding the water-proof bag closed.

Figure 11 is an edge view of the subject matter of Figure 10.

Figure 12 is a plan view showing another means for closing the bag.

Figure, 13 is an enlarged fragmentary sectional view taken substantially on the ]ine13 13 of FigureI12;

Referring tov the drawings in detail wherein like characters of reference denote corresponding parts, the reference character 10 indicates a mail bag which is made of fireproof-material, so that the bag may be used for air mail and the contents preserved in-the event of accident by fire. The bag is further water proofcso that the contents-of the bag will alsobe protected from the action of water should accident occur when the plane'is flying over a-body of water; For'this purpose, the bag is constructed of an outerfire-proof bagand an inner water-proof bag. the outer bag mayconslst of asbestos cloth such as is used for fire-proof curtains in theaters; This cloth usually consists of asbestosyhavingits threadsor strands woven upon copper wire. A bag of this character would not only be fire proof, but of great strength due to the wire reinforcement. Theopen end ofthe outer bag 10 is preferably provided with a flap 11 extending the opposite edge of the bag; [Eyes or staples 12 extending from this last referred to edge pass through grommets or eyelets The material for from one edge, this flap is turned down over 13, while a rod or stifl' wire cable 14 is passed through the eyes or staples 12 ay is secured in place by means of a lock 15,

'If desired, a flexible cable or draw-string maybe-passed directly through the grommets, in this case both sides of the ba' g would be of the same 7 length with no flag on the bags.

The bagmay also be provided with an eye 16, the shank 17 of which is secured to the bag,'sothat the said bag may be sup-,5;

ported upon a rod or other suitable device arranged beneath the bottom or upon opposite sides of the carrying plane. Also, due

to the flexibility of the bag structure," the latter may be folded so as to occupy a rela- .f'

tively small space in the event that the bag is not entirely filled with mail matter.

For the purpose of rendering the bag non-sinkable, a flexible member 18 extends around the bag preferably near each end thereof. This member is threaded through suitable eyelets 19 and carries a plurality of buoyant elements 20. These elements may consist of cork or balsa wood, or they may be hollow copper elements having openings .therethrough for the passage of the flexible member. M g p I k elements are shown at opposite ends of the While the buoyant bag', their number and arrangement may vary in accordance with the weight of the contents of the bag. The buoyant elements however are preferably arranged so that the bag will float mouth upward.

In Figure 5 a spherical "opper or other metallic element-21 is illustrated, a similar element 22 of substantially oval-shape is shown in Figure 6.

The inner bag which is indicated at 21 may be made of any suitable material, such 7 as oiled canvas, silk, or rubber coat fabric of the character used in the manufacture of. raincoats.

The bag 21 isfolded a suitable number of times as indicated at 22"? so as to prevent the entrance of water into the bag. Means are-provided for holding the bag closed, and in Figures 7, 8, and 9, this means consists of a pair of clampingstrips 23 whose adjacent ends are connected by bolts 24; and thumbnuts 25. The folded mouth of the bag may thus be tightly and securelyclosed and inserted Within the outer fireproof bag 10. By making the bags 10 and 21?.sepa- I rate, and by providing separate closing means for each of thebags, theinnerwaterproof bag may be securely closed before being placed'within the outer fire-proof bag so that danger of leakage in through the mouth of the bag 21? will be prevented.

In FigureslO and 11, a spring influenced clamp 26 is substituted for the closing means shown in Figures 7 8, and 9. i v

In Figures 12 and 18, the mouthof the bag is closed by the Well known slidable h oug w i the cable th aded, and

buoyant elements carried by each cable and disposed between the confronting portions of each of the eyelets. e

2. The combination with a mail bag, of flexible cable 'members extending around the bag, spacing means for attaching the cable members to the bag, buoyant elements carried byeach cable member and disposed between the confronting portions of each of the spacing means, and a closure for said 1 bag . JULIUS L. on GIVE.

' Intestimony whereof I allixiiny-signature. I

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