Log-Car Attachment. Page: 4 of 5
[2], 3 p. : ill. ; 23 cm.View a full description of this patent.
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554,342
In order to carry out the invention herein
contemplated, the end of each bolster or bunk
2 is left solid or intact with the exception only
of a very slight mortise or depression 3 in the
.5 upper face thereof and opening out at the end
of the bolster, and a vertical opening 4, which
is adapted to receive the pin or standard in-
dicated at 5. Secured to the upper face and
outer end of each bolster or bunk of the car
io is a top plate, 6, which is provided on its un-
der side with an integrally-formed down-
wardly-projecting boss 7, which fits into the
mortise or depression 3, above referred to. 8
designates a vertical opening through the top
15 plate, 6, and its boss 7, said opening aligning
with the opening 4 in the end of the bolster.
The object in providing the boss 7 is to af-
ford sufficient vertical thickness to the metal
top plate, 0, to provide for the formation of
20 an inclined or spirally-disposed shoulder 0,
arranged adjacent to the pin-o.pening and ex-
tending partially around the same, as shown.
The pin or standard 5 is provided at its up-
per end with an enlargement or head 10, pro-
25 jecting laterally therefrom upon one side, the
lower face of which is beveled off to form an
inclined shoulder 11, which rests upon and
operates in connection with the inclined or
spiral shoulder 9 within the pin-opening to
30 elevate said pin or standard when the latter
is revolved. The lower end of the pin or
standard 5. is bifurcated or provided with a
vertically - extending open central slot, 12,
within which is. pivoted an operating-lever
35 13; which normally hangs pendent beneath
the bolster. This lever may be of any de-
sired length for affording the required power
for operating the pin or standard and is pro-
vided adjacent to its pivoted end with a catch
40 or extension 14, adapted, when turned to the
proper point, to enter and engage a slot 15,
formed in a metallic bottom plate, 10, secured
to the lower face and outer end of the bol-
ster. The arrangement of the slot 15 is such
45 that the catch or extension 14 of the operat-
ing-lever will engage therewith when the pin
or standard is in its elevated position, disen-
gagement between the catch 14 and slotted
plate 16 being prevented by the weight of the
50 lever 13, which normally hangs pendent be-
neath the bolster, as shown. When it is de-
sired to lo wer the pin or standard, the oper-
ating-lever is rocked into an approximately
horizontal position, which has the effect of
55 withdrawing the catch 14 from the slot 15,
after which the lever may be swung around,
thus turniu g the pin or standard 5 and allow-
ing the same to descend by the co-operation
of the inclined shoulder 9 and beveled or in-
60 lined lower face of the head of said pin or
standard in a manner that will be readily
understood. If desired, the top: and bottom
plates, 6 and 10, may be secured to the bol-
ster by the same or separate bolts or in any
65 other convenient manner.
17 designates a plate or casting, which isformed in the process of manufacture with
an integral laterally-projecting flange 18, dis-
posed in such manner as to form an elongated
or substantially elliptical and outwardly and 70
downwardly inclining socket, which is left
open at its upper inner end, as indicated at
19, adapting it to receive one end of a sway-
bar 20. It is to be understood that one of
these socket plates or castings is secured to 75
the inner face and at the end of each bolster
or bunk, and that the opposite ends of the
sway-bars are shaped to fit snugly within
said sockets. As the tendency of the sway-
bars is always outward and upward, it will 8o
be apparent that the ends thereof will thus
be effectually confined within the sockets
provided for their reception. The sway-bars
on either side of the car receive one or more
binding-chains 21,which maybe united there- 85
to in any convenient manner, and which op-
erate to hold the logs in place and prevent
them from rolling off the bolsters or bunks
in connection with the pins or standards 5.
By means of the construction above de- 90
scribed it will be apparent that the pins or
standards may be raised or lowered at will,
thereby obviating the necessity of loading or
unloading the logs over upwardly-projecting
spikesin the usual manner. It will alsobe ap- 95
parent that the usual mortises, which tend to
weaken and destroy the bolsters or bunks, are
dispensed with, and that the bolsters are re-
inforced and strengthened at the point where
they are subjected to the greatest strain. It moo
will also be seen that the sway-bars may be
quickly and easily removed and replaced be-
tween the bolsters or bunks. If desired, the
top plate, 6, and the socket-plate 17 may be
formed integrally or cast in one piece. It 105
will also be apparent that other changes in
the form, proportion, and minor details of
construction may be resorted to without de-
parting from the spirit or sacrificing any of
the advantages of this invention. nio
Having thus described the invention, what
is claimed as new, and desired to be secured
by Letters Patent, is-
1. In a log-car, the combination with the
bolster thereof having a vertical opening, of 115
a vertically movable and rotatable pin or
standard mounted therein and formed with
a circumferential spiral shoulder adapted to
engage a corresponding shoulder within the
bolster-opening, substantially as and for the o20
purpose specified.
2. In a log-car, the combination with the
bolster thereof having a vertical opening
therein, of a top plate secured to the upper
face thereof and provided with an opening 125
aligning with the vertical opening in the bol-
ster, an inclined or spirally-disposed shoul-
der formed adjacent to the opening in said
top plate, a vertically-movable pin or stand-
ard extending through the aligned openings 130
in the bolster and top plate and provided with
an inclined shoulder or head, and means for
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Johnson, Benjamin W. Log-Car Attachment., patent, February 11, 1896; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth174214/m1/4/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.