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Патент USA US2410777

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Nov, 5, 1946.
F? ENGLISH El‘AL
'
2,410,???
HOIST
Filed June 8, 1945
3 Sheets-Sheet 1
_
INVENTORS
fenu/z EA/G'L/J'l/
MARK A. EusL 1.0-;
1477025157:
Nov. 5, 1946.
F. ENGLISH EI‘AL
2,410,777
HOIST
Filed June 8, 1945
3 Sheets-Sheet 2
INVHVZ'ORS
' FRANK [A/GZ/JH
_ BY
Alma/.4. Alva/5”
M
AF‘TEMEY5
Nov. 5, 1946.
F. ENGLISH EI'AL
2,410,777
HOIST
Filed June 8, 1945
3 Sheets-Sheet 3
m/
H-5 1
INYENTORS
FRANK ENGL IJ‘H
BY
.
MARK A ENGL/J'H
Patented Nov. 5', 1946
2,410,777
UNITED STATES PATENT OFFICE
2,410,777
HOIST
Frank English, Pasadena, and Mark A. English,
San Gabriel, Calif.; Elane English adminis
tratrix of said Frank English, deceased
Application June 8, 1945, Serial No. 598,330
10 Claims.
1
This invention is concerned with hoisting
mechanisms and particularly with a hoisting
mechanism adapted to be mounted on a truck.
In its preferred embodiment, the invention con
templates a hoist mounted on a truck, and adapt
(0!. 212—8)
2
in which the cable of the hoist of Figs. 1 and 2
is connected to the hoisting means and the rest of
the apparatus;
Fig. 4 is a detailed elevation of the crossarm at
ed to raise ice from the truck to the top of a re- .
frigerator car.
In the icing of refrigerator cars of conventional
the top of the mast of the apparatus of Figs. 1
and 2;
Fig. 5 is a plan view of the crossarm of Fig. 4;
Fig. 6 is an enlarged elevational View of the
slider and track of Figs. 1 and 2, showing the
manner in which the mast is attached to the
design, it is necessary to hoist the ice to the top
of the car and on remote sidings and the like, the
ice is usually delivered by truck. It has been pro
slider;
posed heretofore to mount a suitable hoisting
Fig. 7 is an end view of the mast, slider and
means on the truck itself, but since the ice must
track of the apparatus of Figs. 1 and 2;
be hoisted approximately twenty feet from the
Fig. 8 is an enlarged fragmentary elevation
truck body, conventional types of hoisting means 15
showing the pivot member and its relation to the
are cumbersome and inadequate. As a result of
mast and the track of the apparatus of Figs. 1
our investigations, we have developed a hoisting
and 2; and
mechanism which is collapsible along the side of
Fig. 9 is a fragmentary end view of the pivot
the truck body, but which carries a mast which
member and mast.
can be raised into operating position at the un 20
Referring now to the drawings and particularly
loading site, i. e. at the refrigerator car, in a very
to
Figs. 1 and 2, it will be observed that a hori
simple manner. In its collapsed form, the hoist
occupies very little space and can be left perma
nentlv on the truck.
'
zontal track H3 is mounted on the outside of a
truck body I l and extends longitudinally from
In essence, our invention contemplates the 26 the cab of the truck to the rear end. A slider l 2
is mounted in the track. A mast I3 is hinged
to the slider. Preferably the mast I3 is tubular,
prises a track (preferably horizontal), a rider
for example a piece of 3" pipe. A snap catch
slidably mounted in the track, a mast, a hinge
I4 is mounted on the lower end of the mast and
connecting an end portion of the mast to the
rider, and a pivot member mounted in ?xed rela 30 is adapted to engage a slot 32 in the track on
the truck when the mast is raised to a vertical
tion to the track in the plane de?ned by the mast
position.
A pivot member l5 ismounted on the
in movement around the hinge, the axis of the
rear end of the truck near the upper edge of the
pivot extending in the same general direction as
truck body. This pivot member is tubular and
that of the hinge, and the mast being slidably
the mast slides through it. The axis of the pivot
mounted in the pivot member.
horizontal and substantially parallel to the axis
In its preferred form, the hoisting mechanism 35 is
of the hinge which connects the lower end of the
of our invention is provided with means for lock
mast to the rider on the track. A crossarm it‘
ing the rider to the track when the mast is raised,
is
connected to the upper end of the mast by a
the locking means preferably being a snap catch.
universal joint member H which permits the
The hoisting mechanism preferably is provided
crossarm to rotate aroimd the top of the mast
with a hoisting means such as a winch with a 40 and also permits angular movement between the
cable connected to the hoisting means and pass
crossarm and the mast.
ing along the track and also along the mast. If
An ice-holding means, for example an ice tongs
the mast is tubular, which is the preferred form,
I 8, is fastened to the end of a cable l9 which
the cable may pass upwardly through the mast
itself. These and other features of our invention 45 passes over a pulley 20 on one end of the crossarm,
thence over a centrally mounted pulley 2! at the
will be understood more thoroughly in the light
center of the crossarm and thence passes inside
of the following detailed description taken in
the mast downwardly to the rider I2. From that
conjunction with the accompanying drawings in
point the cable passes along the track to a pulley
which:
combination in a hoist mechanism which com
Fig. 1 is an elevation of a preferred form of the
hoist of our invention mounted on the side of a
50 2| and thence over a second pulley 22 to a winch
23 (see Fig. 3).
.
Assuming that the truck is loaded with ice and
that the mast is in its lowered position as shown
Fig. 2 is a plan of the hoist of Fig. 1;
Fig. 3 is a cable diagram showing the manner 65 in Fig. 1, the operation is as follows:
The truck is driven to the point at which the
motor truck;
2,410,777
3
ice is to be hoisted, for example along side a re
frigerator car. The winch is started so that the
cable is reeled up. The ice hook acts as a stop
and jams against the pulley at the end of the
crossarm so that the cable tightens and pulls the
slider carrying the lower end of the mast to the
right (as seen in Fig. 1). This raises ther mast
which slides in the pivot and the mast assumes a
substantially vertical position at which point the
snap catch l4 drops into a slot in the track di- ’
rectly below the pivot member and thus holds the
mast in a vertical position. If the winch is then
reversed to pay out the cable, the ice hook may
be dropped to the truck or to the ground where ‘a
load is affixed. When the cable is ‘wound in there
after, the load, say a cake of ice held in the ice
tongs, is raised to an appropriate position for load
ing onto the top of the refrigerator car as shown
in the dotted view of Fig. 1.
The structure of the crossarm and its associ
ated pulleys and universal joint connecting it to
the mast are best seen in Figs. 4 and 5.
Refer
ring to these ?gures, it will be observed that the
universal joint I‘! rotates around the axis of the
mast and also permits the crossarm to rock with
respect thereto by virtue of a hinge 24. The
crossarm is strengthened by means of a truss rod
25 which is bent over the top of a support 26
fastened approximately at the center of the cross
arm and carrying the pulley 2 I.
Referring now to Figs. 6 and '7, it will be ob
served that the track It comprises two channel
4
arm in a substantially horizontal position when
the mast is raised.
The winch preferably is operated by a conven
tional power take-off (not shown) from the
I transmission of the truck.
The mast may be of any desired length, but
conveniently is in the neighborhood of twenty
feet long so as to allow ample height for reach
ing over the top of a refrigerator car.
'
As noted, the ice tongs itself, acts as a stop at
the end of the cable when the mast is being
raised by the winch. However, if desired, a spe
cial stop ‘member on the cable may be provided.
> We claim:
1. In a hoisting mechanism, the combination
which comprises a track, a rider slidably mounted
in the track, a mast, a hinge connecting an end'
portion of the mast to the rider, a pivot member
mounted in ?xed relation to the track in the
plane de?ned by the mast in movement around
the hinge, the axis of the pivot extending in the
same general direction as that of the hinge, and
the mast being slidably mounted in the pivot
member, a hoisting means and a cable connected
to the hoisting means and passing along the
track from the end portion thereof located near
est the pivot member to the hinge and thence
along the mast to the unhinged end thereof.
‘
2. In a hoisting mechanismpthe combination
which comprises a track, a rider slidably mounted
in the track, a mast, a hinge connecting an end
portion of the mast to the rider, a pivot member ,
mounted in ?xed relation to the track in ‘the
neighborhood of an end thereof in, the plane
each other, face to face, so that the ?anges of
de?ned
by the mast in movement around the
the channel irons hold in place the rider l2, 35 hinge, the axis of the pivot extending in the same
which is a hollow rectangle formed of smaller
general direction as that of the hinge, and the
channel iron and carrying a hinge 21 that is
mast being slidably mounted. in the pivot mem
welded to the under side of the mast end. ' The
her, a hoisting means, a cable connected to the
upper side of the mast end carries the snap catch
hoisting means and passing along the track and
M which is held in position in a slot in the track 40 the mast, and means for preventing movement
when the mast is vertical, by means of a spring
of the cable with respect to the mast. .
_
28. The cable as shown, passes through the mast
3. In a hoisting mechanism; the combination
and is bent backward to the right over the hinge
which comprises a track, a rider slidably mount-'
21 in the rider and passes along the track to the
ed in the track, a mast, a hinge connectinguan '
pulley 2|A at the end of the track, and thence
end portion’ of the mast to the rider, and a pivot
through the pulley 22 to the Winch.
member mounted in ?xed relation to the track
The mounting of the mast in the pivot mem
in the plane de?ned by the mast in movement
ber I5 is best seen in Figs. 8 and 9. The pivot
around the hinge, the axis of the pivot extending
member is tubular and of such dimensions that
in the same general direction as that of the
the mast slides throughit easily. It is provided 50 hinge, and the mast being slidably mounted in’
with a pivot or hinge 30, the axis of which is hori
the pivot member, guiding means along the mast,;
zontal and parallel to the axis of the hinge 21 on
a cable mounted in the guiding, means and ex,
the rider. The hinge is supported by a steel
tending from its free end to the hinge and thence 7
framework 3| that is fastened to the track. . If
along the track to a point in the neighborhood
desired, the pivot may be slidably mounted in the 55 of the pivot member, a, load'holding means on
framework to allow limited horizontal movement.
the mast-end of the cable, and a pulling means‘:
In this way, the mast may be kept vertical even
attached to the track end ofthe cable. ‘ ‘ t
4. Apparatus according tov claim>3 ,in'which
when, due to sloping ground, the truck body is .
the mast is tubular and the cable isrguided by
not completely horizontal. It will be observed
passing therethrough.
'
'
' ‘
that the pivot is directly above the slot 32, into
5. In a hoisting mechanism; the; combination. ,
which the spring catch l4 drops when the mast
which comprises a track,'a' rider slidably mount-J
is raised.
ed in the track, a mast, a hinge connecting an
When the mast is to be lowered, the winch is
end portion of the "mast t0 the rider,.a cross
released to permit the cable to unwind, the spring
arm attached to theother end portion of the
catch M is raised and the lower end of the mast
mast, a pivot member mounted in ?xed relation 7.
is kicked to the left by a lever arrangement 33
to the track in the plane de?ned by the mast
provided with a kicker 34 and fastened to the
in movement around the hinge, the axis of the
framework 3! at its right side by means of a bear
pivot extending inthesame general direction
ing 35. As soon as the mast is kicked from its 70 as that of the hinge, and the mast-being slid-1
vertical position, it will slide into its lower. posi
ably mounted in the pivot member, a‘ cable pass
tion by itself.
ing along the crossarm and thence along the
A chain 40 is fastened to the frame supporting
mast to the hinge and thence along the track
the pivot member and to the end of the crossarm
opposite the pulley 20, in order to hold the cross 75 to a point in the neighborhood of the pivot mem
irons IDA, HIB placed horizontal and parallel to
5
2,410,777
her, and guiding means holding the cable in the
position described but permitting longitudinal
6
end portion of the mast to the rider, a pivot
member mounted in ?xed relation to the track
movement of the cable.
in the plane de?ned by the mast in movement
6. Apparatus according to claim 5 in which
around the hinge, the axis of the pivot extend
a stop is ?xed to the cable adjacent the cross
ing in the same general direction as that of the
arm and is adapted to engage the crossarm and
hinge, and the mast being slidably mounted in
prevent movement of the cable with respect to
the pivot member, a cable passing along the
the crossarm when the cable is pulled along the
mast to the hinge and thence along the track
mast to a given position from the end position
to a point in the neighborhood of the pivot, guid
of the cable adjacent the track.
10 ing means holding the cable in the described
7. Apparatus according to claim 5 provided
position but permitting its longitudinal move
with a swivel on which the crossarm is mounted
ment, and a stop on the cable adapted to pre
. to swing about the axis of the mast.
vent relative movement between the mast and the
8. Apparatus according to claim 5 provided
cable when the cable is pulled along the mast to
with a universal joint mechanism on the mast
ward the hinge to a predetermined position.
in which the crossarm is mounted to swing about
10. Apparatus according to claim 9 in which
the axis of the mast and also in a plane passing
means
is provided for locking the rider with re
through the axis of the mast.
spect to the track at said point in the neighbor
9. In a hoisting mechanism, the combination
which comprises a track, a rider slidably mount 20 hood of the pivot member.
ed in the track, a mast, a hinge connecting an
FRANK ENGLISH.
MARK A. ENGLISH.
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