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Патент USA US2128835

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Aug.3o,193s.
C. w. MCVEY‘ ~
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SAFETY SINGLETREE
Filed April 7, '1957
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INVENTOR
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ATTORNEYS
Patented Aug. 30, 1938
2,128,835 '
UNITED STATES PATENT OFFICE
2,128,835
SAFETY SINGLETREE
Charles W. McVey, St. Ignatius, Mont.
Application April 7, 1937, Serial No. 135,550
1 Claim. (Cl. 278-115)
e This invention relates to singletrees and more
particularly to trace fasteners therefor 'and has
for the primary object the provision of efficient
and inexpensive fasteners which will be easy to
operate for connecting and disconnecting traces
of a draft animal harness to the singletree and
which will prevent the traces from becoming ac-'
cidentally disconnected from the singletree when
slack occurs in the traces.
With these and other objects in view, this in
vention consists in certain novel features of con
struction, combination and arrangement of parts
to be hereinafter more fully described and'
of which may move into and out of openings 5
formedin the singletree.
Coil springs 6 lie with
in the singletree and are connected to each other
and to said hooks for the purpose of normally ~
urging the hooks into position so that their free 5
ends enter the openings 5. 'I'he free ends of the
hooks 4 when disposed in the openings 5 of the
singletree will prevent traces or the like from be
coming accidentally disconnected from the hooks.
To disconect the traces it is only necessary t0 10 .
swing the hooks into positions as shown in Fig
ure 3 against the action of the springs 6 and as
soon as said hooks are manually released the
claimed.
- springs return them into positions with the free
For a complete understanding of my invention, ends entering the openings 5.
reference is to be had to the following descrip
What is claimed is:
tion and accompanying drawing, in which
A device of the character set forth comprising
Figure 1 is a longitudinal sectional View illus-y
a singletree of channel iron construction includ
trating
a
singletree
equipped
with
my
invention.
ing parallel opposed Walls and a connecting wall
20
Figure 2 is an enlarged fragmentary longitudi
having openings adjacent the ends of said single- 20
nal sectional View showing one of the fasteners. tree, hooks pivoted on the opposed walls of the
Figure 3 is a View similar to Figure 2 showing singletree and adjacent the ends of the latter
15
one of the fasteners in an open position.
Figure 4 is a sectional View taken on the line
Wi 4--4
s.
of Figure 2.
and capable of occupying positions either with
the ends thereof extending into said openings or
out of said openings to permit the application and 25
Figure 5 is a fragmentary top plan view illus
removal of traces thereto, and connected coil
trating one end of the singletree and a portion of
springs lying within the walls of the singletree
the fastener adapted thereto.
and connectedto said hooks between the pivots
Referring in detail to the drawing, the numeral - thereof and the free ends of the hooks for urging
30
I indicates a singletree preferably constructed the hooks into positions with the free ends enter- 30
of channel iron material and has its ends shaped ing the openings.
to form spaced ears 2 apertured to receive pivot
CHARLES W. MCVEY.
pins 3. 'I‘he pins 3 support hooks 4, the free ends
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