Woodworking-Clamp. Page: 4 of 5
2 sheets, 3 p. : ill. ; 23 cm.View a full description of this patent.
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1,075,384
threaded shaft 8 and by sliding the block
7 on the shaft the link 5 may either be
straightened as shown in Fig. 1 or broken
as shown in Figs. 3 and 4 to bring the jaws
5 in proper position. After the jaws are
brought in proper position the blocks are
allowed to engage the threads and the two
sections will be securely held together by
means of the cross bar 16 secured to the
io springs 15. A more firm clamp can then be
secured on the work by rotating the shaft 8
by means of the handle 11. By having the
ends of the shaft oppositely threaded the
shaft will not only operate the link but will
15 also feed the swivel head toward the work.
The plate 20 carried by the lever 19 will
prevent the accidental displacement of the
bar 16 and as will be seen it is necessary to
release the plate 20 by pressing on the lever
20 19 before the sections can be separated.
The bevel 17 on the upper surface of the bar
16 allows the plate 20 to engage the same
as soon as the levers are released. It will be
seen that by pressing down on the lever 12
25 to which the lever 19 is pivoted with the
thumb and engaging the end of the lever 19
by the end of the thumb the levers can be
simultaneously released. The other lever
12 is engaged by the finger in order that the
30 sections can be drawn apart.
Having fully described the invention what
I claim as new and desire to secure by Let-
ters Patent is:-
1. A clamp comprising two arms, a link
35 connecting said arms intermediate their
ends, jaws on one end of the arms, a pair of
links connecting the opposite ends of the
arms, a threaded shaft operating through
the intermediate connecting link, an inter-
40 nally threaded block operating on the shaft
and connected to the pair of links, means for
releasing the block from the shaft, and
means for rotating the shaft.
2. A clamp comprising two arms, a link
45 connecting said arms intermediate their
ends, jaws on one end of the arms, a pair of
links connecting the opposite ends of the
arms, a threaded shaft operating through
the intermediate connecting link, a block
50 slidably mounted on the shaft, levers piv-
oted to the block, and threaded blocks se-
cured to the levers for engaging the shaft.
3. A clamp comprising two arms, a link
connecting said arms intermediate their
55 ends, jaws on one end of the arms, a pair of
links connecting the opposite ends of the
arms, a threaded shaft operating through
the intermediate connecting link, a block
slidably mounted on the shaft, levers piv-
oo oted to the block, threaded blocks secured to
the levers and engaging the shaft, and
means for locking the threaded blocks to-
gether.
4. A clamp comprising two arms, a linkconnecting said arms intermediate their 65
ends, jaws on one end of the arms, a pair of
links connecting the opposite ends of the
arms, a threaded shaft operating through
the intermediate connecting link, a block
slidably mounted on the shaft, levers piv- 70
oted to the block, threaded blocks secured
to the levers and engaging the shaft, and a
spring catch carried by one of the threaded
blocks and engaging the other of the thread-
ed blocks. 75
5. A clamp comprising two arms, a link
connecting said arms intermediate their
ends, jaws on one end of the arms, a pair of
links connecting the opposite ends of the
arms, a threaded shaft operating through 80
the intermediate connecting links, a block
slidably mounted on the shaft, levers pivoted
to the block, threaded blocks secured to the
levers and engaging the shaft, a spring catch
carried by one of the threaded blocks and 85
engaging the other threaded block, and a
pivoted lever engaging the free end of the
catch.
6. A clamp comprising two arms, a link
connecting the arms intermediate their ends, 90
a pair of links connecting the arms at one
end, a threaded shaft operating through the
intermediate link, a sectionalblock secured
to the pair of links, and engaging the shaft,
and means for opening the sections for re- 95
leasing the block.
7. A clamp comprising two arms, a link
connecting the arms intermediate their ends,
a pair of links connecting the arms at one
end, a threaded shaft operating through the 100
intermediate link, a sectional block secured
to the pair of links and engaging the shaft,
a catch for holding the sections together,
and means for simultaneously releasing the
catch and opening the sections. 105
8. A clamp comprising two arms, a link
connecting the arms intermediate their ends,
a pair of links connecting the arms at one
end, a threaded shaft operating through the
intermediate link, a sectional block secured 110
to the pair of links and engaging the shaft,
a spring catch carried by one section and
engaging the other, a lock for said catch,
and means for simultaneously releasing the
lock and opening the sections. 115
9. A clamp comprising two arms, a link
connecting the arms intermediate their ends,
a pair of links connecting the arms at one
end, a threaded shaft operating through the
intermediate link, a sectional block secured 120
to the pair of links and engaging the shaft,
a spring catch carried by one section and
engaging the other, a pivoted lever engaging
the catch, and means for opening the sec-
tions. 125
10. A clamp comprising two arms, a link
connecting the arms intermediate their ends,
a pair of links connecting the arms at one2
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Reference the current page of this Patent.
Seidel, Emil K. F. Woodworking-Clamp., patent, October 14, 1913; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth854068/m1/4/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.