Title: Beryllium reinforced composite solid and hollow shafting

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Claims: What is claimed is:

1. A beryllium reinforced metal shaft comprising:

a plurality of arcuate, beryllium reinforcing ribbons imbedded in a metal matrix;

said metal matrix being selected from the group consisting of aluminum and titanium;

said arcuate, beryllium reinforcing ribbons arranged in said matrix to coincide with concentric circles whose centers coincide with the cent of the shaft,

substantially each arcuate ribbon in any one circle overlapping in arcuate width an arcuate ribbon in another circle with matrix material therebetween.

2. The shaft of claim 1 having a central portion wherein the central portion is hollow.

3. A beryllium-reinforced metal shaft comprising:

a plurality of arcuate, beryllium ribbons imbedded in a metal matrix and arranged around the longitudinal axis of the shaft to define a circular cross-section;

said metal matrix being selected from the group consisting of aluminum and titanium;

said shaft having a central portion which is a solid rod of beryllium.

4. A beryllium-reinforced metal shaft comprising:

a plurality of arcuate, beryllium reinforcing ribbons imbedded in a metal matrix;

said metal matrix being selected from the group consisting of aluminum and titanium;

said arcuate, beryllium reinforcing ribbons arranged in said matrix to coincide with concentric circles whose centers coincide with the center of the shaft, said shaft having a central portion which is a solid rod of beryllium.

5. A beryllium-reinforced metal shaft designed for use in rotating machinery, or as a control rod, without the need for mid-support bearings, comprising:

a plurality of arcuate, beryllium reinforcing ribbons imbedded in a metal matrix;

said metal matrix being selected from the group consisting of aluminum and titanium;

the radius of curvature of said arcuate, beryllium reinforcing ribbons arranged in said matrix being substantially the same as that of said shaft thereby to coincide with the center of the shaft, the central portion of said shaft being hollow.

6. A beryllium-reinforced metal shaft comprising:

a plurality of arcuate, beryllium reinforcing ribbons imbedded in a metal matrix, there being matrix material between adjacent arcuate ribbons,

said metal matrix being selected from the group consisting of aluminum and titanium,

the width of substantially each arcuate ribbon overlapping a portion of the width of an adjacent arcuate ribbon above or below it in radial direction from the center of said shaft.
Other info:

Inventors: Schmidt, Richard (Mclean, VA, US)

Application Number: 452156
Filing Date: 1974-03-18
Publication_date: 1976-02-17
Assignee: The United States of America as represented by the Secretary of the Navy (Washington, DC)
Primary Class(es): 138/143 138/153, 138/174, 428/593, 428/614, 428/649
Other Classes:
US Patent Ref:

1125161	Jan, 1915	Page	29/191.
1280909	Oct, 1918	Wales et al.	29/191.
1292659	Jan, 1919	Speed	29/191.
1628759	May, 1927	Worrall	29/191.
3419952	Jan, 1969	Carlson	29/471.
3609855	Oct, 1971	Schmidt	29/191.

Other Refs:
Primary Examiner: Curtis, Allen B.
Assistant Examiner:
Attorney: Sciascia; R. S., Beers; R. F., Schneider; P.