US2349717A - Work sling - Google Patents

Description

' May-23, 1944.

G. \M. GRAHAM 2,349,717

WORK SLING Fil ed July 13, 1943 '2 Sheets-Sheet 1 May 23, 1944.

G. M. GRAHAM 2,349,717

WORK SLING Filed July 15, 1943 2 Sheets-Sheet; 2

Patented May 23, 1944 Hin'ckley-Myers Division of Kent-Moore Q1- ganization, Inc., Jackson, Mich, a corporation of Michigan Application July 13, 1943,. Serial No. 494,575

3 Claims.

This invention relates to improvements in a work sling of the free suspension type.

An object is to provide a work sling of th free suspension type particularly adapted to support for lifting and universal swinging movement an internal combustion engine of the type used in tanks and the like.

This improved sling is of such a character that an internal combustion engine may be supported by it for free universal swinging movement and may be tilted to any desired angle for placement in position or for Working thereon.

A feature of importance is that the structure is such that the engine supported by the sling may be easily tilted by relatively light force applied thereto by the operator.

The construction is simple, rugged and relatively inexpensive and i readily adaptable for use in the field.

Other objects, advantages and meritorious features will more fully appear from the following specification, appended claims and accompanying drawings, wherein:

Figure 1 is a side elevation of the improved sling with the diagrammatic outline of a V-type engine supported therein,

Figure 2 is an end view of the apparatus of Figure 1,

Figure 3 is a view taken from the same point as Figure l, but showing the sling. tilted to a different angle from that of Figure 1.

Figure 4 is a perspective of thesling with the engine removed.

Figure 5 is a transverse sectional view through the sling arc with the support in elevation.

Figure 6 is a horizontal sectional view through the support for the sling arc.

Figure 7 is a perspective of the latch hook.

Figure 8 is a fragmentary section through one end of the sling are.

.In the embodiment of the invention illustrated in the drawings, 10 indicates a broken aw y end of a chain hoist provided with a hook I2, which hook is engaged within the bight of a stirrup I4. A roller I6 is rotatably supported between the ends of the stirrup fork upon a stirrup pin l8 as shown,'particular1y in Figures 4, 5 and 6. This roller is circumferentially grooved to support the sling are for free, slidable movement lengthwise over the roller and through the stirrup to tilt the slink arc to any desired position. This arcuate element may be of any cross sectional shape. The one here shown in Figs. 2 and 5 is tubular. The ends of the stirrup pin l8 project beyond both branches of the stirrup fork I 4 as illustrated in Figs. 5 and 6 for a purpose hereinafter described.

The sling arc is provided at one end with an engine supporting member formed of two plates, 22 and 24, welded to the end of the tube and welded together as shown in Fig. 8. Plate 24 is shaped, as illustrated in Figures 4 and 8 to accommodate the engine pulley 23 when an engine 25 is supported within the arc. The plates are provided with stud apertures 21 through which studs 26 extend and are threaded into one end of the engine block to support such end of the engine Within the sling as shown in Figs. 1 and 3.

The sling are 20 is provided at the opposite end with a bifurcated work-engaging hook 28, pivotally supported upon the are by a staple 30 for swinging movement of the hook. This hook 28 is adapted to engage a suitable part of the engine such as the manifold 29, as shown in Figures 1, 2, and 3, to support such end of the engine whereby an engine is supported between the ends of the are as shown in Figures 1 and 3 for universal tilting movement.

The hook 28 carries a latch hook 32 pivoted thereto through a staple 34, note Fig. 6. The ends of the fork of the latch hook 32 are adapted to engage over the projecting ends of the stirrup Din I8, as shown in Figures 4 and 5. The stirrup pin may be held in place within the stirrup by cotter pins I9 as shown in Figures 5 and 6.

When an engine is supported within the sling arc and between the ends of the are, as shown in Figure 1, and the latch hook 32 is released as shown in Figure 3, the arc may be easily moved over the roller to the position shown in Figure 3 and the engine Will be supported by the arc with the center of gravity of the engine directly underneath the stirrup which carries the arc. The engine may be tilted as desired by moving the sling are over the roller through the stirrup. This ease of tilting of the engine permits the engine to be placed at any angle for ready placement into position upon an engine bed Or to facilitate working upon different parts of the engine.

What I claim:

1. A free suspension work sling comprising, in combination, suspending means including a stirrup provided with a roller rotatably mounted between the ends of the stirrup fork, an arcuate work supporting element extending through the stirrup and supported upon the roller for free slidable movement thereover, a hook pivoted to one end of the arcuate work supporting element and adapted to engage a piece of Work, means at the opposite end of the work supporting element adapted to be engaged with said piece of work, and means adapted to releasably secure said hook at a fixed position.

2. A free suspension work sling comprising, in combination, suspending means including a stirrup, a pin extending between the ends of the stirrup fork, a circumferentially grooved roller mounted upon the pin for rotation within the stirrup, an arcuate work supporting element in the form of a tube extending through the stirrup and mounted upon the roller for lengthwise slidable movement thereover, a bifurcated Work engaging hook pivoted to one end of the work supporting element to swing therebelow, means operable to releasably couple the hook to the stirrup fork, and means at the opposite end of the arcuate work supporting element adapted to be engaged with a piece of work.

3. A free suspension work sling comprisingjn combination, suspending means including a stirrup, a pin extending between the ends of the stirrup fork and projecting therebeyond, a circumferentially grooved roller mounted upon the pin for rotation Within the stirrup, an arcuate work supporting element extending through the stirrup and mounted uponthe roller for lengthwise slidab-le movement thereover, a bifurcated work engaging hook pivoted to one end of the Work supporting element to swing therebelow, a latch pivoted to the hook and adapted to be releasably engaged over the ends of the stirrup pin, and means at the opposite end of the arcuate work supporting element adapted to be engaged with a piece of work.

GEORGE M. GRAHAM.

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