b44
K+-E
KEUFFEL
&
ESSER
CO
Reproduced from -the holdings of the Natlonal Archives
Pacific Southwest Region
Adams and Third Streets, Hoboken, N. J.
Telephone HOboken 31100 - Teletype HOB 141,
Date
REPORT
Sept. 16, 1949
ON
K. & E. TAPE NO. 7698CM ~ 50 Meters
Nickel Steal Tape
LOVAR (Trademark)
Serial No. 6464
The above identified tape has been compared with our standard (which corresponds to the U. S. Standard at the National
Bureau of Standards at Washington, D. C.) and was found to
have the following length at 20° Centigrade (68° F.) under
the conditions stated below:Supported on a horizontal flat surface:-
Tension
interval
Length
ll-1/2 Kg.
0-50 M.
50.000 M.
Supported at the 0, 25 and 50 M points:-
Tension
Interval
Length
15 Kg.
0-50 M.
50.000 M
The coefficient of expansion of the tape is assumed to be
0.000 000 4 per degree Centigrade (0.000 000 22 per degree
Fahrenheit).
KEUFFEL & ESSER CO.
-
awk-fp
,
By__/s/ A. We Renftet
ce
siaer
‘
oc