| |
| Name
of Patent Applicant: |
|
Edward
Helb of Railroad, Pennsylvania |
| Patent
No: |
|
868,089,
October 15, 1907 |
| Country
of Issue: |
|
United
States |
To all whom it may concern:
Be it known that I, EDWARD HELB, a citizen of
the United States, residing at Railroad, in the
county of York and State of Pennsylvania, have invented
a new and useful Level, of which the following is
a specification.
This invention relates to a combined level and grade finder
and has for its object to provide a simple, durable
and efficient device of this character particularly designed
for use by carpenters, bricklayers, mechanics
and other persons in ascertaining different grades,
determining the heights of objects, laying out roads
and for various other purposes.
A further object of the invention is to provide a tool
or instrument having a double-ended gravity actuated
pointer or index finger movable over the face of a graduated
dial seated in a recess in one side of the instrument,
said dial consisting of a plurality of concentric circles
graduated in such a manner that when one end of the pointer
or finger is actuated to indicate the grade in inches
per horizontal foot in any elevation or the number of
inches in the grade to every foot in the base, the
opposite end of the pointer will simultaneously indicate
the grade per slant foot and the number of inches in the
base for every foot in the grade.
With these and other objects in view, the invention
consists in the construction and novel combination and
arrangement of parts illustrated in the accompanying drawings
and pointed out in the claims hereto appended, it
being understood that various changes in form, proportions
and minor details of construction may be resorted to without
departing from the principle or sacrificing any of the
advantages of this invention.
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