US 3094340 A
Description (OCR text may contain errors)
J1me 1963 o. RICHARDSON ETAL 3,094,340
SLIVER COILER Filed April 22, 1959 FIG. 3
R E 0 m7 8% RH U mC N m R 5% 0 NM n UMW A 0 W m United States Patent 3,094,340 SLIVER COILER Olan Richardson, Hampton, and Charles W. Walter,
Griflin, Ga., assiguors to Southern States Inc., a corporation of Georgia Filed Apr. 22, 1959, Ser. No. 808,213 1 Claim. (Cl. 280-35) This invention relates to sliver coilers and more particularly to coilers using large cans provided with rollers or the like to facilitate bodily movement of the cans and their contents from one position to another.
It is customary to move sliver cans from place to place as a routine procedure in textile mills. Frequently the cans are moved manually by an operator who simply slides the cans along the floor in groups of five or six cans. The trend toward cans of larger and larger diameters results in substantial increases in the weight of the cans, particularly when filled with sliver. 'lhus with heavier cans to handle, it is becoming more and more difiicult for an operator to move the cans about, especially where a particular operation requires him to slide a group of several cans along the floor. In some instances it has been necessary for the operator to reduce the number of cans moved simultaneously in a group and by so doing partially to defeat the purpose of using larger cans.
A principal object of this invention is to provide an improved dolly which is adapted readily to be affixed to the bottom of conventional sliver cans as a unit and which facilitates the movement of the cans from place to place, the dolly being of simple construction.
The invention in one form comprises a can dolly in the form of a triangular frame which is yieldably constructed and which is especially adapted to receive a swivel type caster at each vertex, the frame being engageable with the bottom flange of a conventional coiler can for securely aflixing the dolly to the bottom of the can by a frictional relation therebetween.
The invention will be better understood from the following detailed description taken in conjunction with the accompanying drawings in which FIG. 1 is a side view of a coiler having a wheel-mounted can; FIG. 2 is a view of the bottom of a coiler can to which a dolly constructed according to this invention is afiixed; FIG. 3 is an enlarged perspective view of a caster used in the invention; and in which FIG. 4 is a sectional view of a portion of the dolly showing the cooperation between the dolly and the can flange.
With reference to FIG. 1, the numeral 1 designates a coiler base to which a pedestal 2 is securely affixed in conventional fashion. Mounted atop the pedestal 2 is a coiler head generally designated by the numeral 3. As is well understood in the art, suitable mechanism is disposed within the pedestal 2 for imparting rotary motion to a platform 4 rotatably mounted on the base 1 and to a sliver fed into the top of the head 3 whereby the sliver is coiled in a predetermined pattern within the can 5 mounted on the rotatable platform 4.
As can be seen in FIG. 1, the can 5 is provided with a plurality of casters 6.
As is disclosed in detail in co-pending application Serial Number 744,510, filed June 25, 1958, now Patent No. 2,916,780, and in application Serial Number 808,175, filed April 22, 1959, now Patent No. 2,936,496, the rotatable platform 4 is constructed so as to enable an operator readily to position the can 5 in its proper centered relation on the rotatable platform 4 and so as to engage the rollers 6 thereby to hold can 5 in position on platform 4.
From FIGS. 2 and 4 it can be seen that the casters 6 are ffixed to a triangular frame 7 comprising an element of dable construction and that an integral caster mount- 3,094,340 Patented June 18, 1963 ing plate 8 is provided at each vertex of frame 7. The mounting plate 8 of each caster is aflixed by welds 9 to the frame 7.
As is best shown in FIG. 3, each caster 6 is of conventional design and comprises a wheel 10 mounted on an axle 11 supported by a U-shaped yoke 12, the bight portion 13 of which is secured to a swivel pin 14. Each plate 8 is provided with a central aperture through which pin 14 extends. Also mounted between each base 8 and yoke 12 is a bearing race in which ball bearings (not shown) are disposed. The bearing race is provided with a central opening for receiving the pin 14, which pin serves to hold the bearing assembly together.
Preferably the frame 7 is constructed of cold rolled steel rod stock about three-eights of one inch in diameter and is discontinuous as indicated at 7A and 7B. Furthermore, the angle X is preferably about 68 degrees before the casters 6 are affixed thereto. Normally the frame 7 is formed as described and then placed into a fixture which holds the frame in a symmetrical relation such as is shown in FIG. 2, i.e., in the same condition that the frame will assume when mounted on a can. With the frame so stressed the casters are welded to the frame. When the frame and casters are removed from the fixture the angle X becomes larger than 60 to provide the spring effect required to exert an outward thrust on the flange 50 of the can bottom 5B. As is shown in FIG. 4, the frame 7 may ride above the edge SD of the can rim 5A, the can bottom 58 being in engagement with the upper surface of frame 7. Thus it is the spring action of frame 7 which tends to expand angle X thereby to force the frame into frictional contact with the rim of can 5. The dolly of this invention is thus simple to construct and is quickly and easily applied to coiler cans.
While we have shown a triangular frame with three casters, it will be understood that a greater number of sides for the frame could be provided together with a corresponding number of casters.
We do not wish to be limited to the particular embodiment of the invention shown and described and intend in the appended claim to cover all changes and modifications as fall within the true spirit and scope of the invention.
What we claim as new and desire to secure by Letters Patent of the United States is:
A can dolly comprising a frame formed of yieldable spring construction having a plurality of sides arranged in a common plane, one of said sides being discontinuous with adjacent parts normally spaced apart in opposed re lation by a distance greater than the distance between said parts when forced toward each other against the inherent bias of said frame to accommodate contraction of said frame within said plane from its normal size and configuration against the inherent bias thereof, said frame being arranged to exert a substantial outward force in said plane when contracted due to its inherent bias, and a plurality of casters afiixed to said frame on said plane.
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