Scientific American, Volume 56, No. 9, February 26, 1887 — John Shaqi
Scientific American, Volume 56, No. 9, February 26, 1887Various
Science
Scientific American, Volume 56, No. 9, February 26, 1887
Various
Science -- Periodicals; Technology -- Periodicals
By means of this device wood may be measured by the cord or fractional
parts of a cord, as occasion may require. The sill frame consists of
two longitudinally ranging timbers connected by cross bars. Near one
end of the timbers are fixed uprights, braced to each other and to
the timbers. To the inner faces of the sills are screwed a series of
headed pins, the first one being exactly one foot from the inner face
of the end posts, and the others being spaced one foot apart. Two
posts, braced together by rods, are adapted to stand on the sills, and
to the inside face of each post is attached, by coach screws, a metal
plate provided with a hook at its lower end, adapted to engage with
the shank of one of the headed screw pins of the sills. Attached to
each post is a brace with two arms, and formed at its lower end with a
notch to engage the pins on the sills. The metal plates and braces are
slotted for the passage of the screws, so that the movable frame may be
quickly and easily set perfectly plumb, whichever opposite pair of the
sill pins may be engaged by the hooked plates. The posts are exactly
four feet high, and one is marked by cross lines one foot apart. It is
apparent that, to measure a cord, the frame is moved to the eighth set
of pins and the wood is piled to the tops of the posts. To measure half
a cord, the hooks are engaged with the fourth pins. By adjusting the
hooks to the first pair of pins, and filling the wood in between the
end posts up to the first cross line on the post, a single foot of wood
can be measured, or up to the second line for two feet, and so on. Thus
a cord or any fractional part can be readily measured. To disengage the
frame, it is only necessary to tilt it forward toward the fixed posts,
when it may be shifted to any point along the sill frame.
[Illustration: BROUGHTON'S ADJUSTABLE WOOD MEASURING RACK.]
This invention has been patented by Mr. Horace L. Broughton, whose
address is P. O. box 320, Marblehead, Mass.
Steel Rail Capacity of the United States.
Public-domain text, read in full here on John Shaqi.
Reviews
Reviews
No reviews yet
Be the first to share your thoughts on this work.
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account