US1568489A - Burning-in stand - Google Patents

Description

Jan. 5 192s. 1,568,489

L. B. WHEELER I BURNlNG-IN STAND Filed July 24, 1924 INVENTOR.

Louie Beale Wheeler;

Patented Jan. 5, 1926.

LOUIEVIBEALEV WHEELER, or MEMPHIS, TENNESSEE.

BURNING-IN STAND.

Application filed July 24, 1924. Serial No. 727,988.

To all whom it mam concern:

Be it known that I, LOUIE BEALE WHEELER, a citizen of the United States,

residing at Memphis, in the county of Shelby and State of Tennessee, have invented certain new and useful Improvements in Burning-InStands, of which the following is a specification. i I

This invention relates to burning-in stands for supporting engine-blocks in position while the same are being worked upon.

The primary object ,ofthis invention is the provision, in a manner as hereinafter set forth, of a burning-in stand having means 7 whereby an engine block may be shifted to assume any position or angle to expedite work thereon, and further having means whereby the crank shaft may be placed in position andpower applied thereto to revolve the same in order towear the bearings and other parts into proper shape,

a process known as burning-in, before the engine is replaced upon the chassis of the machine;

A further object of this invention is the provision, in a manner as hereinafter set forth, of a burning-in "stand for engine blocks, having adjustable means for, supporting blocks of varying sizes.

A still further object of this invention is the provision, in a manneras hereinafter set forth, of a burning-in stand for motor blocks having means whereby power can be applied to the stand tol operate the crank shaft and pistons belonging to the block towear the same in after the cylinders of the block have been bored. 7 a

A further and final object of this invention is thelprovision, in a manner as hereinafter set forth, of a burning-in stand for motorblocks, of neat construction, strong, durable, eflicient and inexpensive to manufacture and install. p The invention will be best understood from aconsiderati'onof the following de tailed description taken in connection with the accompanying drawings forming a part of this specification, with the understanding that the invention is not confined to any strict conformity with the showing of the drawings but may be changed and modified' so long as such changes and modifications mark no material departure from the salient features :of the invention as expressed in the appended claims.

In the accompanying drawings: 7

Figure 1 is a side elevation of the device embodying this invention. a

Figure 2 is a top plan view of the same.

Figure 3 is an end elevation thereof.

Figure 4 is a central longitudinal sectional view through two associated tubular stub shafts.

Figure 5 is a detailed perspectiy e view of one of said tubular stub shafts showing a motor block supporting arm formed integral therewith.

Figure 6 is a detailed side elevation of a bearing construction of one of the pedestals.

Referring now to the drawings in detail wherein like numerals of reference indicate corresponding parts throughout the several views, the device embodying this invention comprises a plurality of spaced substantially A-shaped supporting pedestals 1, 2 and 3, respectively, the lower portion of each pedestal being braced by a cross member 4 and having its lower terminal ends 5 vertical and parallel and further inturned to provide supporting feet 6. Each of the pedestals is provided at each side, at the point of joinder between the cross brace 4 and the upper portion of the vertical lower end 5 with a passage 7 designed to receive therethrough the horizontally extending spaced parallel bars 8. These bars as shown retain the pedestals l, 2 and 3 in the proper spaced relation. g

It will be seen that the pedestal 2 is located adjacent the end pedestal 3 thus leaving the relatively wide space between the pedestals l and 2. Slidably mounted upon the parallel bars 8 in this space between the end pedestal 1 and the inner pedestal 2 is a shiftable support 9 of triangular shape and substantially the same in contour as the pedestal except that the depending portion 5 and the feet 6 are absent, this support being designed to slide upon the bars 8 through the bearings 10 located at the lower portion thereof. r

The longitudinally shiftable supporting member 9 and the bracket 1 adjacent there- 'to each has a head 11 formed at the upper part thereof, and this head has an aperture therethrough, as indicated at 12, and is furthersplit as at 13 having the laterally extending parallel spaced ears 14 formed integral therewith, and secured together by means of the bolts 15. Each of the other two pedestals 2 and 3 has the upper portion thereof formed to provide a half bearing 16 over which a cooperating half bearing 17 is positioned and secured by means of the bolts 18. The bearings in the brackets 2 and 3 and the split bearings in the bracket 1 and the member 9 are in alignment longitudinally of the frame as shown.

Extending through the bearings 11 are tubular revoluble collars 19 and 20, respectively, each having the lower portion thereof extended as at 21 and formed integral with a transversely extending bar 22 which is provided with vertical through slots 23. As shown in Figure 4 these extended lower portions 21 of each of the bearings 19 and 20 are in opposed relation one to the other and carry the transverse supporting bars in parallel spaced relation between the end bracket 1 and the supporting member 9.

As stated, each of the bearings 19 and 20 is tubular to act as a bearing, and'the bearing 19 in the headll of the pedestal member is of greater length than the bearing 20and extends beyond the head of the pedestal and has secured thereto a gear wheel 24-. Formed upon the outer side of the pedestal 1 is a pair of right angularly extending apertured lugs 25 which constitute bearings for the shaft 26 of a crank 27. This shaft 26 carries thereon a worm 28 which, as shown, meshes with the gear wheel 2&.

It has been before stated that the supporting member 9 is shiftable upon the bars 8 longitudinally of the structure, and when positioned a proper distance from the end bracket 1 an engine, indicated in dotted lines by the numeral 29, may be supported between the member 9 and the bracket 1. Arms 30 may be bolted at their ends to the transverse supporting arms 22 and extended inwardly across the face of the engine block to be secured thereto by bolts 30, to support the block between the transversely extending arms. When the block 29 is thus suspended between the arms 22 the same may be revolved to any desired angle by operating the crank 27 to turn the gear wheel 24: which will revolve the shaft 19 and swing the transverse member 22 carried thereby.

Supported in the bearings 16 is a shaft 31 carrying thereon a pair of pulley wheels 32 one of which may be keyed to the shaft and the other mounted to idle thereon, and the inner end of the shaft 31 is formed to provide the fork 33 adapted to coact with a similar fork 34 to provide, through the medium of the connecting pins 35, a universal joint. The inner end of the fork 34 carries a shaft 36 which terminates in an open sleeve 37. This sleeve is directed toward the split bearing 11 of the shiftable supporting member 9.

lVhen the cylinders of the engine block 29 have been bored and it is desired to bring about a perfect fit between the cylinder walls and the pistons which are to work therein, the crank shaft of the engine is placed in position with its ends extending through the bearings provided by the bearings 19 and 20, and the inner end of the crank shaft is;engaged in the sleeve 37 of the shaft 36. A power belt may then be passed about the pulleys 32 and power transmitted to the crank shaft to work the pistons in the cylinders while the block 29 is held in the proper position. The universal joint between the shafts 31 and 36 allows for any misalignment, and if desired, still another joint may be placed between the shafts if greater flexibility is desired.

From the foregoing description it may be seen that a burning-in stand is provided which has novel features not heretofore found in stands of this type, namely, the adjustability of the stand to take an engine block of any size, the means for revolving the block to any angle to get to any point thereof, and the means for operating the crank shaft and other elements of the block to wear the same into position, upon the stand used to bore the block and hold the same for other work. Heretofore, it has been necessary to shift the block from one stand to the other, the stand which holds the block in any desired. position for work thereon being so constructed that the block must be shifted to another stand for the burning-in process. With this apparatus, when the block is once in position, it is not moved from the stand until the job is finished.

Having thus described my invention. what I claim is:

1. The combination in an apparatus of the character set forth, of a series of spaced supporting pedestals, connecting elements extending therebetween, a shiftable member slidable on said elements and cooperating with one of said pedestals for the support of an engine block, a revoluble bearing upon the top of said member and cooperating pedestal, means carried by each bearing to support an engine block at any desired angle upon revolution of one of said bearings, and means associated with one of said bearings for transmitting power thereto to revolve the same and the engine therewith.

2. The combination in an apparatus of the character set forth, of a series of spaced supporting pedestals, means to provide a bearing upon the top of each, connecting elements extending between said pedestals, a supporting member slidably carried upon said elements and formed to provide a bearing at its top part, in alignment with said first mentioned bearings, means carried by said member and one of said pedestals for supporting anengine block, and a power transmitting element mounted in the bearings of the other of said pedestals having means for connection with a crank shaft supported above said block to revolve the shaft for burning-in the parts of the block.

3. The combination in an apparatus of the character set forth, of a series of spaced supporting pedestals, means to provide a aring upon the top of each, connecting elements extending between said pedestals,

a supporting member slidably carried upon said elements and formed to provide a bearing in alignment with said first mentioned bearing and one of said pedestals for supporting an engine block, a power shaft mounted in the bearings of the other of said pedestals, and means having universal joint connection with said power shaft, to en age for rotation a crank shaft supported a ove said block to burn-in the parts thereof.

In testimony whereof, I affix my signature hereto.

LOUIE BEALE WHEELER.

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