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Sept. 17, 1946.'
Filed May 4, 1943
3 Sheets-Sheet 1
Sept. 17, 1946.
Filed May 4, 1943
3 Sheets-Sheet 3
LUTHER B. 8/‘?! TH‘
Patented Sept. 17, 1946
Luther B. Smith, Camp Hill, Pa., assignor to L. B.
Smith, Incorporated, Camp Hill, Pa., a corpo
ration of Pennsylvania
Application May 4, 1943, Serial No. 485,636
5 Claims. (Cl. 94-50)
This invention relates to rollers especially
adapted for use in the compaction of earth areas
platform, consisting of the top and bottom plates
such as road beds, playing ?elds or the like where
it is desirable to have the earth surface well‘
H and I2, welded or otherwise secured to the
U-beam frame Hi. The platform has openings
normally covered by doors 15 through which sand
packed and level.
5 or other ballast material may be introduced into
‘A principal object of the invention resides in
a box l6 disposed at the underside thereof. The
the provision of a roller or compactor embodying
bottom of the box 16 is provided with a suitable
opening controlled by a slide l8 to permit dump
a plurality of wheels, each of which is individ
ually mounted in a novel type of carrying bracket
ing of the ballast when desired.
Disposed beneath the front portion of the plat
for vertical oscillation independently of the other
Wheels, with separate yieldable pressure imposing
form and pivotally connected thereto by a king
means interposed between each bracket and the
bolt I9 is a ?fth-Wheel 2!) having a tongue 21 by
body of the roller and located in a position to
which the roller may be coupled with a suitable
impose a direct downward pressure or thrust on
draft machine.
The platform is preferably supported. . by‘ or
the wheel in the vertical plane of the wheel axle. 15
Another objectof the present invention is to
mounted up'on thirteen wheels provided with
provide a roller or compactor in which the roller
smooth~tread I7.50 x 15 pneumatic tires. How
wheels may be separately removed and replaced;
ever, a greater or less number of wheels may be _
when necessary, without having to disconnect
used as well as different types and sizes of tires.
the carrying bracket therefor or disturb the other 20 ‘Secured to the underside of and extending
across the front or forward part of the ?fth
roller wheels.v
wheel is a series of pairs of hangers 22 through
A further object of the invention is to provide
pressure imposing means for each roller wheel
which extends a shaft 23. This shaft has oscil
with novel means associated therewith for look
latably mounted thereon a leg 24 of each of a
ing the wheel against vertical movement relative 25 series of ‘substantially L-shaped wheel brackets
to the body or for decreasing the extent of ver
tical movement of the wheel and increasing the
pressure of the wheel upon the ground.
A still further object of the invention is to pro
vide a novel coupling arrangement between the
.axle of each wheel and the fork of the support
ing bracket therefor. .
or’ forks B.
A second or rear series of' pairs of
hangers ‘25 are secured to and extend rearwardly
from the back wall of the ballast box IE which
is reinforced by thepbar 26. These hangers per
form the same vfunction as'hangers' 22, support
ing a shaft 21, to which a series of the brackets
B is pivoted. The positions of the pairs of hangers
Other objects and advantages of the invention
of one series are such, however, with respect to
will appear from the following description when
those of the other series, as to stagger the ‘front
read in connection with the accompanying draw 35 and rear brackets and the wheels connected
ings showing illustrative embodiments of the in
thereto, so that, as best seen in Figure 1, the rear
vention and wherein:
wheels‘ will pass over or cover the part of the
Figure 1 is a view in top plan of a roller con
ground which passes between the front wheels.
structed in accordance with the present inven
Thus, the entire ground surface will be packed
tion, parts being broken away.
40 along a strip having a width equaling the dis
Figure 2 is a view in side elevation of the same.
tance between the outer sides of the extreme
Figure 3 is a rear elevation.
wheels‘ of the widest series. In the illustrative
Figure 4 is a section on the line 4-4, of Fig
embodiment of the invention, this is the rear
ure 2.
Figure 5 is a vertical, longitudinal section on 45
the line 5——5 of Figure 1.
‘ The wheel mounting brackets B together with
the compression spring set-up, locking means
Figure 6 is a vertical section taken substantially
and wheel structure are the same in the front and
on the line 6-6 of Figure 5, parts being shown in
rear series of wheels. Therefore a description
of one unit will suffice.
Figure 7 is a view in perspective of a, wheel 50
Each bracket B is in the form of an L having
bracket with the holding plates for the wheel
the previously referred to leg 24, which is nor
axle shown in removed relation therewith.
mally substantially horizontal, and the angularly
Figure 8 is a section taken substantially on line
related, downwardly extending leg 28, which is
8—-8 of Figure 1.
divided to form a fork, having the ‘two spaced
Figure 9 is a vertical detail section through a 55 portions 28a. As best shown in Figure 7, the free
spring unit showing the wheel locking means.
ends of the portions 28a of each fork are slotted
Figure 10 is a section taken substantially on
or notched from the bottom edges as indicated at
line |0—|0 of Figure 5.
29 to receive a portion of a wheel axle. '
l ‘ i‘
Referring now to the drawings, the numeral
The numeral 30, generally designates the
Ill generally designates a steel box type body or 60 spring assembly for each wheel and bracket unit.
Such assembly comprises two spaced vertically
aligned cups 3| and 32, the former being mount
ed upon the top of the bracket leg 24, ‘directly
above and in lineiwithr the vertical leg 28, while
the cup 32 is secured to the machine body, either
to the bottom plate 12 for the rear series of wheel
units or to the underside of the ?fth-wheel for
the front series. As shown particularly in Fig
ures 5 and 7, a compression spring 33, having"
bearing plates 34 at its ends, is mountedv in each 10
pair of vertically aligned cups 3| and 32 to trans
mit to each individual wheel its proportion of. the‘
weight of the loaded body or platform.
At the rear end of the leg 24 is located‘ a rear
wardly extending apertured ear 35, and above 15
such ear is. a corresponding aperturedear 36 car
ried by the top spring cup 32. Through these ap
rear series of supporting units therefor, each
series comprising a plurality of angled brackets,
each having a substantially horizontally dis
posed leg in close proximity to said'body and a
substantially vertical, downwardly extending leg
‘having a forked lower end, a horizontal pivotal
coupling between the ?rst leg of each bracket and
the body, a ground engaging wheel rotatably
carried within said forked lower end of the down
wardly extending leg and underlying a part of
said horizontally disposed leg, and a short com
pression spring interposed between said part of
each of the ?rst legs and the body.
2. A roller comprisinga weighted body, a series
of supporting units disposed beneath and across
the underside of the body at the front end, a
series of supporting units disposed beneath and
ertured ears 35—3B passes a headed bolt 31' hav
across the under side of the body rearwardly from
ing. a nut 38 threaded thereon and engaging one
the ?rst series, a horizontal shaft ‘supported
ear‘while the head of the bolt engages the remote 20 transversely of the body adjacent each series of
side of the other ear. By means of this bolt con
units, each unit comprising a substantially
~ nection between the spaced spring cups, relative
L-shaped' bracket having a substantially hori
movement thereof is controlled, so that the ten
zontal leg the ‘free end of which is pivotally
sion of the spring may be increased or slackened
mounted on the adjacent shaft and having the
or if desired, the cups may be drawn together to 25 other leg extending downwardly in the form of
the maximum, degree so that no movement of the
a fork, a ground engaging-wheel rotatably mount
bracket relative to the machine body will be per
ed in each fork and disposed entirely below'the
mitted, thereby locking the bracket and wheel
top of said horizontal leg so as. to be readily re
carried thereby.
movable from the bracket, and a short compres
Each wheel 39 is mounted to rotate about a 80 sion spring interposed between the non-pivoted
short axle 40, on a suitable anti-friction bearing,
end of each of the ?rst-mentioned legs of the
notv shown. Each end of the axle has asquared
brackets and the overlying body.
portion 4| which is located in a slot 29 of the
bracket fork. when the wheel is in position in the
fork as shown particularly in Figure 6. Thus, ,
the axle is held from turning in the slots of the
fork portions but the wheel» may turn freely about
the axle.
The axle. is retained inthe forkportions 28a
3. A roller as set forth in claim 21, with an
adjustable coupling between each bracket and
the body and adjacent the spring by which the ‘
spring tension may be controlled and the‘ wheel
locked against movement‘ relative to the body.
4. A roller of the character described, compris
ing a weighted body and a forward and a rear
by1locking plates 42, each of which has an open 40 series of supporting units therefor, each series
ing. 43, to receive a squared end 4| of the axle
comprising a plurality of angled brackets, each
and these plates 42, are bolted against the. outer
having a substantially horizontally ‘disposed leg
sides of the fork portions, as best illustrated in
and asubstantially vertical, downwardly extend
Figures 5 and 6. Thus, the wheels are each se
ing leg, a horizontal pivotal coupling between
curely held in a fork of a bracket, but may be
the ?rst leg of each bracket and the’ body, a
easily and quickly removed and replaced, when
ground engaging wheel rotatably carried by the
necessary, without dismounting the bracket or
lower end of the downwardly‘extending leg, and
disturbing any of the other brackets and wheels.
a‘ compression‘ spring interposed between each of
While any form of bearing may be employed
?rst legs and the body, each of said springs
between the forward end of bracket arm 24 and .50
being disposed substantially in alignment with
the‘. shaft to. which it is connected a simple and
the adjacent vertical leg to impart a direct down»
e?'icient type of bearing, is detailed in Figure. 10,
thrust to and through the center of the
wherein there is employed a. sleeve 44, extend
underlying wheel.
ing. thru thexarm 24‘ and having a bearing 45
5‘. A roller of the character‘ described, com
secured in each end through which the bracket 55
prising a weighted body and a forward and a
supporting.‘ shaft passes.
‘rear series of supporting units therefor, each
‘From the foregoing it will be seen that the
series comprising a plurality of angled brackets.
present roller embodies a novel, compact wheel
each having asubstantially horizontally disposed
unit in which the pressure is applied directly
downwardly on the wheel through the straight 60 leg in close proximity to said body and a sub
stantially vertical, downwardly extending leg
vertical leg. 28” of the bracket whereby the, maxi
having a forked lower end‘, a horizontal pivotal
mum: of pressure-is obtained with a minimum
coupling between the ?rst leg‘ of each bracket
use of. "space.
and the body, a ground engaging wheel rotat
Also, it will be readily be. seen that the wheel
ably carried within said forked lower end of the
pressure. may be varied vas desired, within certain ‘
downwardly extending leg, a. short‘ compression
limits,.through the medium of the coupling be
spring interposed between each of the ?rst legs
tween the spring cups, or the wheel may be
and the body,‘and means constructed and ar
locked, if desired, against any vertical movement
ranged relative to each spring and bracket and
independent of the: body l0.
the body for restraining the reaction of the
Having thus‘ described the invention, what is
claimed. is: ,
1‘. A roller of the, character described, come
' prising a weighted body and a forward and a
spring and adjustable to sufficient extent to posi
tively interengage the'bracket and the body.
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