US1533987A - Portable elevator - Google Patents

Description

April 14, 1925. 1,533,987 H. s. GERMOND, JR.

FOR-TABLE ELEVATOR Filed Jan. 26, 1922 2 Sheets-Sheet 1 April 14, 1925.

H. s. GERMOND, JR

PORTABLE ELEVATOR Filed Jan. 26, 1922 2 Sheets-Sheet 2 Patented Apr. 14, 1925.

HENRY snnnnnn anemone, an, or BAYONNE. NEW JERSEY..

. PORTABLE ELEVATOR.

Application filed January 26, 1922. Serial No. 531,966.

To all whom it mayv concern: 1

Be it known that I, HENRY SHELDEN (inn- M'OND, Jr., a Cll'JZQIl. of tlle'UIllt-fid States of America, residing at Bayonne, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Portable Elevators, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to improvements in portable elevators or tiering machines and particularly to improvements in portable elevators of the revolving-base type described and shown in United States patent granted Thomas J. McCarthy on May '28, 1907, No. 854961. In United States patent granted George M. French on February 26, 1901, No. 668681, and also in United States patent granted William B. Pavey and George M. French on August 15, 1916, No. 1,194,780, there is shown and described a portable elevator of the non-revolving-base type having a dumping caster-Wheel; and, in this type of machine, the tongue (or pullhandle) stands upright, when the machine is at rest upon the floor, in position to be loaded or unloaded. Where the machine is of the non-revolving-base type, the upright position of the handle is unobjectionable during loading and unloading, but the same is not true, in the case of the machine provided with a revolving base; for, in that case, the tongue or pull-handle serves to ob,-

struct loading and unloadingkof the platform from the tongue side, as may be seen from an inspection of Fig. 2 of the McCarthy patent above-mentioned. An ob ject of the present invention is to provide, in a tiering machine of the revolving-base type, a dumping-caster mechanism or apparatus in which the tongue or pull-handle is detachable to a certain extent (hereinafter described) and therefore capable of being laid in a pronepositionupon the floor, during the operations of loading and unloading,- when the machine is at rest and the caster-wheel is raised from the floor, whereby the platform is free to be loaded and unloaded from the tongue-side of the machine. Another object of this invention is to provide a tongue or pull handle of the detachable type just mentioned, in which the pullhandle is two-part and is so constructed that that part which is manipulated by the workman i. e., the steering part) is free to be swung aside, when detached, and susceptible of being pushed aside and effectually put out of the way, thereby ceasing to be an encumbrance and hindrance to the operator of the machine, while the pull-handle is detached and lying on the floor.

v In the drawings illustrating the principle of this invention and the best mode now known to me of applying that principle, Fig. 1 1s a side elevation of a tiering machine having a revolving base and provided with a dumping-caster mechanism embodying this invention; Fig. 2. is a detail illustrating the dumping-caster mechanism in front elevation, the pull-handle being shown dotted;

Fig. 3 is a detail illustrating the dumpingcaster mechanism with the pull-handle disengaged and lying upon the floor, one of the wheels being omitted; Fig. 4 is a detail illustrating the dumping-caster mechanism engaged by the pull-handle, one of the wheels being omitted. Fig. 5 is a detail showing, in plan, a two-part pull-handle, the parts thereof being shown interlocked with each other; Fig. 6 is a detail illustrating, in plan, a two-part pull-handle, the steering part being shown freed from its normal interlock with the butt-end of the pull-handle; Fig. 7 shows in side elevation the parts illustrated, in plan, in Fig. 5; Fig. 8 is a detail illustrating in side elevation, the steering part of the pull-handle thrown out of locking engagement with the butt end thereof, and Fig. 9 is a detail showing the dogin plan.

The tiering-machine A is shown conventionally and may be briefly described as having a truck a provided with a pair of truckwheels I) at its rear end and with a pair of posts or legs 0 at its front end. Upon the truck a, there is mounted, free to revolve in a horizontal plane thereon, a machine-base d from which rise the machine-standards 6 (only one of which is shown), between which travels up and down, the load-receiving carriage or platform f. One end of a hoisting-cable g is fastened to the latter, while its other end is wound around the drum of a Windlass mechanism h, the cable passing around a pulley 2' that hangs from the top crosspiece j which extends between the standards 6 and forms therewith the hoisting-frame of the machine. The dumping-castermechanism, of which the principle of operation is well known to all persons skilled in this art, is attachedto the front part of the truck a and comprises a pair of of the latter lever is pivotally secured, by means of a pin g, to a hanger or bracket 7' g which is fastened to the truck a.

. wheels is are shown The pull-handle t comprises a pairof bars '6' suitably connected at their outer ends by a cross-piece t" that serves as a handheld. The axle m passes through holes formed in the inner ends of the bars t and the latter are free to swing upon the axle m. Between the bars t and below the middle thereof, there is mounted, free to swing on the pivots u, a dog or catch at that is formed with a recess u in its lower face. This recess u" is shaped (either as shown in Fig. 3 or in Fig.7) to receive the upper end of the arm 'n, which is formed with a recess 92, in its top adapted to receive the dog a (Figs. 2 and 3). The dog a is provided, at its front end, with a cross-piece u"; bypressing with his foot upon the latter, the. operator may throw the recessed end of the dog it upwardly and out of engagement with the top of the arm n and may then swing the pullhandle t downwardly and towards the front and lay the same upon the floor s, as illustrated in Fig. 3. In Fig. 1, the tiering machine is shown resting upon its truck-wheels b and its legs or posts 0, so that the platform or carriagef may be loaded; The caster- (Fig. 1) resting upon the floor s and the pull-handle t is held in upright position by the engagement of the dog a with the top ofthe arm "n. lVere it desired to load the carriage 7 from the front or handle side, it would be necessary 'to revolve the base d through an arc of one hundred and eighty degrees (180); but, in its position illustrated in Fig. 1, the upright pull-handle t constitutes an obstruction to the free loading of the carriage '7 from the handle-side of the machine. It is, however, in order to remove this obstruction, necessary only to disengage the dog ufrom the top of the arm n and to lower the pull-handle t to the floor, as has hereinbe fore been described and as is illustratedin Fig. 3. The loading of the carriage f having been completed, the pull-handle t is.

raised by the operator and swung to the rear, untilthe dog it becomes engaged with the upper end of the arm n, whereupon the operator draws the pull-handle t to the front and, the dog u and the lever 51, 0, being now interlocked (Fig. i), the caster wheels is are forced intocontact with the floor s and the cam-faced end p of the leverarm 0 is brought 'to bear against the hanger r, with the result that the front end ,of the truck a is raised and the legs or posts 0 leave the floor 8. The machine now rests upon the truck-wheels b and the casterwheels is and may be drawn or rolled along steering part '0 of the pull-handle which is opposed to the butt-part 20 thereof, there is fastened a pair of plates 4;, 11, respectively above and below the steering part c and extending towards the front end w of the butt-part w and embracing the end an. r. These plates v, o, are slotted (see Figs. 5

and 6) and through the slots 1) passes the pivot-bolt w. These slots 12* permit the plates '21, Q), movement-relatively to the pivot-bolt w, as will be readily understood. Through the front end w" of the butt-part w of the pull-handle, there passes a lockingpin a2; and the rear end of each of the plates 4:, o, is formed with an open-ended slot, notch or recess '0 the pull-handle v, to, being in line with the butt-part w thereof, the wall of the recess 'v may be engaged with the locking-pin a, by thrusting the steering part -v towards the butt-part 20, when the parts 1;, w, of the pullhandle will assume the relative positions illustrated in Figs. 5 and 7, wherein these parts 1), w, are shown interlocked with each other so that the steering part c cannotbo swung aside i. e., laterallywith respect to the butt-part w of the pull-handle and to the base or bed a of the machine). lVith its parts v, w, thus interlocked, the pull-handle may be manipulated as'an entirety and the upper notched end of the arm n of the twoarmed lever 12,, 0, may beengaged in the notch or recess it" formed in the dog a, as hereinbefore described and shown (see Figs. 1 and 4). \Vhen the dog or catch a is disengaged from the arm n and the pull-handle is lying flat onthe fioorfthe workman may release the steering part 2; from its interlock with the butt-part w by pulling the steering part 0 towards himself and thereby throwing the walls of the notches o out of engagement with the projecting ends of the locking-pin m, the slots '0 permitting the plates '0, 'v,-to slide relatively to the pivot-bolt w (Fig. 8). Thus freed from its engagement with the locking-pin m, the steering part '0 may now be swung laterally and so gotten out of the way of the workmen who are operating, loading and unloading the machine (Fig. 6).

The caster-wheel is normally rests upon the floor, even when the posts 0 are raised therefrom; but it will be understood that the caster-wheel may be raised from the floor, if the operator so desires, by his deliberately pushing the handle t towards the machine.

The steering part c of a.

lUl

In accordance with the patent statutes, 1 have shown and described the preferred form of this invention. 1 desire it to be distinctly understood that l rfully realize that changes may be made in the structure herein disclosed and that I intend to include within the scope of the claims that follow hereinafter all modifications of the preferred form of this invention that do not depart substantially from the spirit thereof. For example,'the dog a may be spring-controlled, instead of gravity-controlled, as shown. Again, instead of a pair of caster-wheels 70., 7a, a single caster-wheel may be substituted.

This application is filed as a continuation in part of the application filed by me on the thirtieth day of April, 1921, Serial No. 465,768, and allowed on the seventh day of December, 1921.

I claim:

1. An apparatus of the character described, including a truck-support therefor,

i re

and mechanism for alternately changing the latter from a readily-movable truclesupport to a fixed, stationary truck-support; said mechanism including an operating pull-handle for drawing the apparatus from point to point along the floor, the pull-handle being mounted free to be moved out of loadingobstructing position; and means carried by the pull-handle for interlocking the pullhandle at will with other parts of said mechanism for the actuation of the same by the pull-handle to effect both the changes' 2. An apparatus of the character described, including a truck-support therefor;

a base mounted free to revolve on the trucksupport; and mechanism for alternately changing the latter from a readily-movable truck-support to a fixed, stationary trucksupport; said mechanism including an op- .erating'pull-handle for drawing the apparatus from point to point along the floor, the pull-handle being mounted free to be moved out of loading-obstructing position; and means carried by the pull-handle for interlocking the pull-handle at will with.

other parts of said mechanism for the actuaboth the changes.

3. An apparatus of the character described, including a truck-support therefor; and mechanism for alternately changing the latter from a readily-movable truck-support to a fixed, stationary truck-support; said mechanism including a two-partpull-handle by which the apparatus may be drawn from point to point along the floor, and'which is arranged to interlock detachably with other parts of the mechanism for actuation of the same the parts of the pull-handle being constructed to interlock vdetachably with each other and one of the parts of the pull-hanle being mounted free to swing from side to side on its other part when freed from its interlock therewith and to be thrown out of loading-obstructing position when the pullhandle is disengaged from other parts of said mechanism. I

4. An apparatus of the character described, including a truck-support therefor; and mechanism for alternately changing the latter from a readily-movable truck-support to a fixed, stationary truck-support; said mechanism including a two-part pull-handle for drawing the apparatus from' point to point along the floor, the parts of the pullhandle being constructed to interlock detachably with each other and one of the parts of the pull-handle being mounted free to swing from side to side on its other part when freed from its interlock therewith;

the pull-handle being mounted free to be v -mo-ved out of loading-obstm1cting position;

and means for interlocking the pull-handle detachably and at will with other parts of said mechanism for the actuation of the same by the pull-handle.

Signed at the city of Jersey City, in the county of Hudson and State of New Jersey, this eighteenth day of January, 1922, in the presence of the two undersigned witnesses.

HENRY SHELDEN GERMOND, JR.

Witnesses:

AGNES D. GnRMoND, WARREN M. LYMAN.

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