US 2296203 A
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Description (OCR text may contain errors)
Patented Sept. 15, 1942 ARTICLE -HANDLING TOOL William H. Hal-stick, Richmond, Ind., assignor to International Harvester Company, a corporation of New Jersey Application July 25, 1940, Serial No. 347,451
This invention relates to an article-handling tool. More specifically it relates to a tool for removing disks from a cream separator.
The patent to Harstick No. 2,194,204 issued 'March 19, 1940, shows several modifications of a tool for removing disks from a cream separator, and the present application relates to the same type of tool improved in a number of respects.
An object of the present invention is to provide an improved article-handling tool.
A further object is the production of an improved tool for removing disks from a cream separator.
According to the present invention, the improved tool comprises a frame and a plurality of rotatable rods having portions near but spaced. from one end, which are adapted to engage in a locking manner the lowermost disk of a stack of cream separator disks, so that the disks may be removed from the separator for washing. During washing, the disks are moved up and down in water by means of the tool and may be separated from one another easily for proper cleaning action because the lowermost disk is held locked to the tool.
In the drawing:
Figure 1 is a view in elevation of the improved tool of the present invention inserted into a stack of separator disks for removal of the disks from a cream separator bowl;
Figure 2 is a top view of the tool;
Figure 3 is an elevational View of the tool taken along the lines 33 of'Figure 2;
Figure 4 is a sectional view taken along the lines 4-4 of Figure 3;
Figure 5 is a detail view, showing the manner in which the lowermost disk of a stack of separator disks is engaged by the tool; and,
Figure 6 is a plan view of the lowermost disk, showing one rod of the tool engaging the disk.
In Figure 1 there is shown a cream separator bowl base l0 supported on a rotatable driving shaft H and having a central tubular portion |2 extending upwardly in line with the shaft. A heavy disk I3 is mounted on the separator bowl base, and upon this disk is positioned a stack of separating disks l4 having diametrically opposed holes [5 therein.
The disk-removing tool of the present invention is shown in position for removal of the separator disks. This tool comprises a frame l6 formed in symmetrical halves l1 and I3 and held together by a bolt l9 and nut 20, and a pair of rods 2|, each extending through an opening in the frame l6 and having at one end adjacent the frame a crank arm portion 22 and an offset shoulder lug 23 near to but spaced from the other end. As shown in Figure l, the offset shoulder lugs 23 extend toward one another and engage in a mating recess 24 formed as part of the opening l5 in the lowermost or heavy disk I3, so that this disk is locked against movement with respect to the rods 2|. The rods 2| are inserted in position through the disks l4 and the disk l3, with the lugs 23 extending parallel to one another, so that the lugs may pass through the holes I5, which are elliptical, as shown in Figure 5.
Each rod 2| has an abutment portion 25 at the end near the crank arm portion 22'. The abutment portions are engaged by notched ends of aspring element 26 which is engaged at its mid-section by interior projections 21 and 28 extending respectively from the halves I1 and l8' constituting the frame It. The action of the spring element 26 in pressing against the abutment portions 25 is to urge the crank arm portions against the frame It. In the position of the rods 2|, in which they lock in engagement with the bottom disk l3, the crank arm portions 22 extend toward one another in sockets 29 formed between shoulders or stop portions 33 and 3|. Thus, the crank arm portions 22 are held locked in the sockets 29. There are also shoulders or stop portions 32 which form with the shoulders and 3| sockets 33 and 34, respectively. For the insertion of the rods 2| through the holes I5 in the disks, the crank-arm portions 22 are positioned either in sockets 33 or sockets 34.
At the side of the frame It opposite that against which the crank-arm portions 22 rest are outwardly extending, curved projections 35 on the outside of the rods 2|. On the same side of the frame I6 is also a centrally extending projection 36. During removal of the disks l3 and M from the cream separator bowl base In by means of the tool, an operators hand is caused to grasp the frame I6, with the little and index fingers engaging the projections 35 and the middle and ring fingers on both sides of the projection 36, and the palm of the hand resting against the opposite side of the frame It and the crank arm portions 22. Thus, the crank-arm portions are held in the position in which they extend toward one another not only through the action of the spring element 26 acting against the projections 21 and 28 and the abutment portions 25,.but also by the hand of the operator which rests against the crank-arm portions With the fingers engaging the projections at the opposite side of the frame.
As previously stated, the lugs 23 are spaced from the lower ends of the rods 2|. The spacing is such that the rods may be inserted in the openings l5 and caused to rest against the bowl base l0. With the rods resting against the bowl base, the lugs 23 are opposite the recesses 24 in the openings in the lower disk l3 and come into locking engagement with the recesses through turning of the rods.
As will be apparent from the foregoing description, the improved tool of the present invention has four advantages over the above mentioned Harstick patent. The article-engaging lugs are spaced from one end of the rods, so that the proper positioning of the lugs for engagement is automatically gauged by abutment of the rods against the cream separator bowl base; the lugs on the rods have a locking engagement with the H lowermost disk so that washing of the stack of disks is facilitated; the rods are locked in engaging position against rotation through the action of a simple spring element which is cheap and easy to install; and locking of the rods against rotation is also insured by a special shape of frame which permits grasping by the hand of the operator in such a way that the hand itself prevents rotation of the rods.
The intention is to limit the invention only within the terms of the appended claims.
What is claimed is:
1. A tool for lifting apertured elements from a body comprising a frame and a pair of spaced substantially parallel rods, each mounted adjacent one end thereof for rotation about its own axis in the frame, said rods each having an offset shoulder lug near but spaced from the other end and projecting in a single radial direction, and means at said frame end of each rod to rotate the rods to one position in which the lugs face in a direction to permit insertion of the rods into the apertured articles and thereafter to rotate the rods to another position in which the lugs face in a direction to permit the lugs to have locking engagement with the lowermost one of the apertured elements for lifting all of the elements, the spacing of the lugs from the ends of the rods being such that contact with the interior of the body by the ends of the rods assures positioning of the lugs with respect to the lowermost apertured element for locking engagement with said element upon rotation of the rods.
2. A tool for lifting apertured elements from a body comprising a frame and a pair of spaced substantially parallel rods, each mounted adjacent one end thereof for rotation about its own axis in the frame, said rods at their other ends each having an elongated offset shoulder lug near but spaced from said other end and having its greater length extending in a single radial direction with respect to said rod, and means at said frame end of each rod to rotate the rods to one position in which the lugs face in a direction to permit insertion of the rods into the apertured articles and thereafter to rotate the rods to another position in which the lugs face in a direction to permit the lugs to have locking engagement with the lowermost one of the apertured elements for lifting all of the elements, the spacing of the lugs from the ends of the rods being such that contact with the interior of the body by the ends of the rods assures positioning of the lugs with respect to the lowermost apertured element for locking engagement with said element upon rotation of the rods.
3. A tool as set forth in claim 2, each rod having at the end adjacent the frame a crank portion by means of which rotation of the rod is effected.
4. An article-handling tool comprising a leg having handle means associated with one end and an offset shoulder lug near but spaced from the other end, whereby the leg may be inserted through an apertured element so as to abut the said other end against a member from which the apertured element is to be removed, and the leg may be turned so as to cause the offset shoulder lug to have locking engagement with the apertured element.
WILLIAM H. HARSTICK.