US1012203A - Elevating apparatus. - Google Patents

Description

W. HV. HUNT.

. ELEVATING APPARATUS.

APPLICATION FILED SEPT. e, 1910.

1,012,203. Patented Dec. 19,1911.

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W. H. HUNT.

ELEVATING APPARATUS.

APPLICATION FILED SEPT. e,l 1910.

1,012,203. v Patented` Deo.'19, 1911.

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W. LHUNT.

ELEVATING APPARATUS.

APPLICATION FILED SEPT. 6, 1910.

PatentedDec. 19, 1911.

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APPLIOATION FILED s112126, 1910.

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UNITED sTATEs PATENT oEEioE.

WILLIAM H. HUNT, F NEW YORK, N. Y.

ELEVATING APPARATUS.

To all whom it may concern:

Be it known that I, VILLIAM H. HUNT, a citizen of the United States, and residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Elevating Apparatus, of which the following is a specification, such as will enable those skilled in the art to which it appertains to r make and use the same.

This invention relates to elevating or hoisting apparat-us and the object thereof is to provide an improved apparatus of this class which is particularly designed for elevating the bodies of coal trucks or similar vehicles, in order that the contents of said bodies may be dumped or discharged from an elevated position; but which may also be used in connection with elevator cars or platforms especially in what are known as cellar or sidewalk elevators, and with this and other obJects in view the invention con` sists-in an elevator or elevator apparatus constructed as hereinafter described.

The invention is fully disclosed in the following specification, of which the accompanying drawing forms a part, in which the separate parts of my improvement are destive detail view of a part of the construction shown in Fig. 2; Fig. 3 a view similar to Figs. 1 and Q but showing another modification; Fig. 3 a plan view of a set of lazy tongs forming part of the construction shown in Fig. 3; Fig. 4 a view similar to Fig. 3 but showing my improvement applied for the purpose of raising an elevator car or platform such as the car or platform of a cellar or sidewalk elevator; Fig. a view similar to Fig. 4 but showing the car or platform partly raised, and ;-Fig. 6 a. view similar to Figs. 4 and 5 'but showing the car or platform fully raised.

In Fig. 1 of the accompanying drawing I have shown or indicated at a a part of the truck frame of a coal truck or similar vehicle, only enough of said truck frame being shown to indicate the construction and use of my improvement and the position of the wheels al of the truck. The top portion of Specification of Letters Patent.

Application filed September 6, 1910.

Patented Dec. 19, 1911.

Serial No. 580,729.

the truck frame is shown atv a2 and the central part thereof is broken away and mounted thereon is the usual body b which may be of any desired construction, but the bottom of the end portions of which are preferably inclined downwardly toward the middle thereof as 'indicated by the dotted lines b2 and at said middle thereof and in a side thereof is a side discharge opening b3 in which is shown a telescopic discharge chute b4'. The opposite side portions of the truck frame are provided with inclined tracks a3 which extend downwardly from the central portion of the truck frame and in practice, and in the form of construction shown in Fig. l, I employ in connection with the bot-- tom of the opposite sides of the body o two sets of toggle levers o and CZ. The upper ends of the toggle levers c have a sliding connection .with .the bottom b5 of the body o,

-this connection consisting of oblong keepers c2 which are secured to the bottom of the body b, and pins c3 are connected with said levers and movable in said keepers, while the lower ends of said levers c are provided with rollers o4 movable on the tracks o3. The upper ends .of the toggle levers Z also have a sliding connection with the bottom o5 of the body Z), said connection being made by means of oblong keepers (Z2 secured to the bottom of said body and pins Z3 connected with said levers and movable in said keepers, while the lower ends of said levers Z are provided with rollers Z4 movable on the tracks a3. I also provide a suitable winding and cord or cable mechanism for operating the levers c and d and in the form of construction shownin Fig. l, this mechanism consists of a shaft e mounted transversely in the truck frame, and cords or cables e2 connected with the lower ends of the levers c, and with said shaft, and cords or cables e3 connected with the lower ends of the levers d and with said shaft, and the shaft e is also provided with a gear wheel e4 which meshes with a pinion e5 mounted on a supplemental shaft e, said supplemental shaft e being provided with a gear wheel e7 and being operated by a pinion es supported adjacent thereto and the shaft of which is provided with a crank e", the pinion es being also provided with a pawl f which prevents the backward movement thereof and of the other parts of the winding mechanism.

The operation of this form of construction will be readily understood from the foregoing description when taken in connection with the following statement thereof. lith the parts of the apparatus in the position shown in Fig. l, and the body o resting on the truck a the levers Gand (Z are in their lowermost and outermost positions, and when the shaft e is turned by means of the crank e9A and intermediate gearing, the body Z) will be gradually raised into the position also shown in dotted lines in said figure, and with the parts of the elevating or hoisting apparatus in this position the body o will be raised through a distance equal or approximately equal to the depth thereof and the contents of said body may be discharged from the side thereof in the ordinary manner as will be readily understood.

In the accompanying drawing the cords or cables e2 and e3 are connected directly with the lower ends of the levers c and (Z, but the method of making this connection is immaterial and said levers may be provided if desired, with rollers or pulleys around which said cords or cables may be passed and while I have shown and described a particular form of winding mechanism it will be apparent that my invention is not limited thereto, nor is my invention limited to the sliding connection of the levers c and Z with the bottom of the body Z); and it will also be understood, that in practice, a suitable brake mechanism may be employed to control the downward movement of the body Z), but as said brake mechanism forms no part of my invention, it is not shown and described.

Iith the construction shown in Fig. l the body Z) is raised vertically and the contents discharged from one side thereof, butv in Fig. Q I have shown a modification intended for use when it is discharged to raise one end of the body b higher than the other and to dump the contents from one end thereof. In this form of construction I. preferably use only the levers fZ, and the connection of the upper ends of said levers with the bottom of the body b are made the same as in Fig. l, butI in connection with the keepers Z2 I provide means t-o prevent the said levers from sliding therein when desired. This means consists of bracketshaped keepers g secured to the sides of the bottom of the body ZJ and vertically movable lock pins g2 adapted to be inserted into said keepers and provided with heads g3 and reduced end portions (/t forming shoulders g5, as clearly shown in Fig. 2a.

The bracket-shaped keepers g are connected with the sides of the bottom b5 of the body Z) over the outer end portions of the keepers (Z2 and when the pins g2 are passed downwardly through. said bracketshaped keepers the reduced end portions g* thereof operate in connection with the pins (Z3 in the ends of the levers CZ to prevent said ends from moving in the keepers (Z2. In this form .of construction the winding mechanism consists of the shafts c and e and gearing et, e5 and el and employed in connection with the gear wheel el is a crank pinion f2, while a sliding pinion f3 is mounted on a shaft ft opposite the crank pinion f2 and also adapted to engage the gear wheel el, said sliding pinion f3 being adapted to be moved longitudinally of its shaft by a lever f5. In this form of construction the cords or cables @3 connected with the front levers (Z are also connected with the shaft c, but the cords or cables e3 connected with the rear levers CZ are connected with the shaft f4. Normally the pinion f3 is not in mesh with the wheel @l and when it is desired to raise the body o, the crank pinion 'f2 is operated and the front levers (Z are drawn into the position shown in dotted lines and the front end of the body Z) is raised into the position also shown in dotted lines. It will be understood that the contents of the body may be dumped when said body is in this position, but if it be desired to raise the said body and dump it from a higher position the crank pinion .f2 may be operated so as to partially raise the front end of the body after which the pinion 733 may be thrown into engagement with the gear el, and by continuing to operate the crank pinion both ends of the body will be raised, and after the dumping or rear end of the body has been raised to the desired extent the pinion f3 may be disengaged from the gear el, and the crank pinion f2 further operated so as to raise the front end of the body to the desired angle, all this operation as will be understood, being rendered possible by the particular form of the winding gear mechanism.

In order to raise the body b as above described and as shown in Fig. 2 the upper ends of the front levers Z must be locked in their outermost position in the keepers (Z2, this operation being performed by means of the pins g2 and bracket-shaped keepers g as shown in said figure, while the upper ends of the rear levers Z must be left free to slide in theirkeepers d2; but it will be understood that by locking the upper ends of both the front and rear levers (Z in either the outer ends or inner ends of the keepers (Z2, the body Z) may be raised vertically and horizontally as shown in Fig. l.

lith the construction shown in Fig. 2 I connect with the bottom rear vend of the body o a pin f5 which passes down through the top of the truck frame and prevents the body Z) from sliding backwardly when the front end thereof is raised and before the rear levers Z are brought into operation, and while I havenot shown and described a brake mechanism for controlling the descent or fall of the body b as is customary with apparatus of this class it will beunderstood t-hat any suitable brake mechanism may be employed if desired or the descent or fall of the body b may be controlled by the crank or crank pinion f2.

In Fig. 3 I have shown another modification of the construction shown in Figs. 1 and 2 for raising the body or bed of a coal truck or similar vehicle vertically, and in this form of construction the separate sets of toggle levers c and d are employed at the opposite sides of the truck frame, and in connection with the opposite sides of the body or bed and said body or bed b is of the same form as shown in Fig. 1. In this form of construction I also employ at the opposite sides of the truck frame and in connection with the opposite sides of the bed or body Z), a set of lazy tongs z, the central top portions of which are pivoted to the central part of the body of the truck at 71,2, and the central bottom portions of which are pivoted to a support h3 at 7a4.

rEhe lazy tongs `h are arranged horizontally and are what are known as double lazy tongs as shown in Fig. 8a, and the separate side members thereof are connected at the top and bottom as at h2 and and at the bottom and midway of the end portions thereof as at h5, and at the ends 7L thereof, and centrally thereof as at k7, and the connections of the separate side portions of said lazy tongs at h5, are provided with antifriction rollers. The toggle levers c and Z which are arranged in pairs at the opposite sides of the truck and of the bed or body Z) in this form of construction, are composed of separate telescopic members, the lower end portions 05 and Z5 thereof being telescopic in the upper end portions thereof and being provided with heads c6 and le in which the rollers c4 and d* are mounted. In this form of construction the upper end portions of the toggle levers c are pivoted at L2 where the top portions of the lazy tongs 7L are also pivoted, while the upper end portions of the toggle levers Z are pivoted in oblong keepers (Z7, secured to the opposite sides of the bottom of the bed or body b, the pins (Z2 with which said levers are provided being movable in said keepers, and at the inner ends of said keepers, the sides of the bottom of the bed or body b is provided with recesses ZS adapted to receive the pins (Z3, and the object of which is to hold the levers c and e against accidental movement when said pins rest therein. Tith this form of construction the levers Z pass between the separate side portions of the lazy tongs 7L between the pivotal connections at h5 and h, while the levers c pass between the separate side portions of said lazy tongs, and between the pinion 5 which meshes with the gear 2, and

with a gear 6 and mounted adjacent to thc gear 2 and meshing therewith is a pinion 7 provided with a crank 3, and connected with the shaft 2 and the lower end portions of the toggle levers c are cords or cables 2.

The winding mechanism y' consists of a shaft f2 provided with a gear js which meshes with a pinion y'4 on a supplemental shaft j, and said shaft L7'5 is provided with a gear j, and a crank pinion j? is mounted adjacent to the gear je and providedwith a crank js, and cords or cables jf are connected with the lower ends of the toggle levers d and with the shaft j2. The body is also provided at its opposite ends and on the opposite sides thereof with depending guide bars la which are movable in vertical keepers 7a2 secured to the sides of the truck frame, and the lower ends of the toggle levers c and d in this form of construction move on horizontal tracks 7c3, but this last feature is not essential and the tracks 762 may be inclined the same as the tracks a3 shown in Figs. l and 2 if desired.

In order to understand the operation of the construction shown in Fig. 3 it will be necessary to consider the construction shown in Figs. t, 5 and 6, in which the same hoisting or elevating apparatus is used for raising the car or platform of a cellar or sidewalk elevator. In Figs. 4L to 6 inclusive I have shown a cellar or sidewalk elevator car or platform m mounted in a shaft which eX- tends from the bottom of a cellar or street vault to the surface of a pavement at m2, and said shaft is provided at its opposite sides with vertical guides ma, and the car or platform with keepers m4 movable on said guides. The apparatus or means for elevating the car or platform m is exactly the same as that for elevating the truck body Z) in Fig. 3, with the exception of the winding mechanism which consists of a motor n with the shaft of which is connected a belt or cable n2, which is connected with a drum or similar device n3, with which the cords or cables 9 which operate the toggle levers c are connected, and another motor o, the shaft of which is provided with a belt or'` cable 02 which is connected with a drum or similar device 03, with which the cords or cables js, which operate the toggle levers CZ are connected; but my invention is not limited to the form of winding mechanism or apparatus shown in Fig. 3 or to that shown in Figs. 1f, 5 and 6 and any suitable winding mechanism by which the toggle levers c and (Z can be operated as hereinafter described may be employed.

In order to operate the hoisting or elevating apparatus shown in Figs. 3 and 4 the winding mechanism t' shown in Fig. 3 or the motor n. shown in Fig. 5, is lirst operated so as to draw the toggle levers c into the position shown in Fig. The winding mechanism shown in Fig. 3 or the motor 0 shown in Figs. fl, 5 and G is then operated so as to operate the toggle levers Z and draw them into the position shown in Fig. 6. In this last operation the upper end portions of the toggle levers (Z, after the hoisting apparatus assumes the position shown in Fig. 5, press on the pivotal connections at h5 of the separate parts of lazy tongs Zz. at each side and force said lazy tongs into the position shown in Fig. G, and this completes the elevation of the body of the truck, shown in Fig. 3 or of the car or platform m shown in Figs. et to G inclusive. In this operation the telescopic members and (Z5 of the toggle levers c and Z assume the position shown in Figs. and el., and that shownin Figs. 5 and and G, the first change of position being that shown in Fig. 5, and the last change that shown in Fig. (i.

It will be understood that suitable memis may be employed for controlling the fall or downward movement of the car or platform m shown in Figs. 4- to 6 inclusive, as in the case of the bed or body Z) shown in Figs. l to 3 inclusive, and this means may be the winding mechanism, or suitable brakes as in connection with other apparatus of this class. It will also be understood that the tracks p on which the toggle levers c and Z Operate as shown in Figs. t to 6 inclusive, may be inclined as shown in Fig. 4l or may be horizontal, as shown in Figs. 3, 5 and G. or all of said tracks or ways may be inclined, if desired, and by my improvement I provide means whereby truck beds or bodies, loaded to the extent of several tons may be easily raised for dumping purposes into any desired position. and whereby an elevator car or platform of the class specified when heavily loaded may also be quickly, easily and conveniently raised to the desired height with the least possible application of power. Vhile in Figs. 3 to 6 inclusive of the accompanying drawing I have shown t-wo different winders or winding mechanisms for the toggle levers c and (Z, my invention is not limited to this construction, and other forms of mechanism of this class may be provided and various changes in and modifications of the other features of the construction shown and described herein may be made without departing from the spirit of my invention or sacrificing its advantages. It will also be seen that in the form of construction shown in Figs. 3 to 6 inclusive the toggle levers c are employed to give the load an upward movement after which the toggle levers Z operate in connection with the lazy tongs ZL to finish said movement, and a lazy tongs construction may be employed in connection with the toggle lever apparatus shown in Fig. l if desired.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. A load. hoisting mechanism consisting of a plurality of levers arranged in pairs transversely of and beneath the load, one end of said levers having a sliding connection with the bottom of said' load and being provided with means whereby they may be locked in a predetermined point in the said sliding connection, the other ends of each pair of said levers being normally extended in opposite directions and on the opposite sides of a central point beneath said load. tracks or ways beneath said load and on which said other ends of said levers bear, and means, independent. of the load for drawing the eX- tended ends of said levers inwardly toward said central point beneath said load.

2. A load hoisting mechanism consisting of a plurality of levers arranged in pairs transversely of and beneath said load, one end of said levers having a sliding connection with said load and the other ends of said pairs of levers being extended in opposite directions beneath said load, tracks or ways beneath said load and on which said other ends of said levers bear,` and a set of lazy tongs in connection with which said levers operate, one pair of said levers serving to give the load an initial upward movement and the other pair operating in connection with said lazy tongs to finish said move ment.

3. A load hoisting mechanism, consisting of a plurality of levers, arranged in pairs transversely of and beneath said load, the upper ends of said levers being connected with said load, tracks or ways beneath said load and on which the other ends of said levers bear, and a set of lazy tongs also employed in connection with and beneath each side of the load, and in connection with which said levers operate, one pair of said levers Aserving to give the load an initial upward movement and the other pair operating in connection with said lazy tongs to finish said movement, said levers being also composed of separate telescopic parts.

t. A load hoisting mechanism, consisting of a plurality of levers arranged in pairs transversely of the bottom of the load, and connected at one end with said load, tracks or ways arranged beneath said load and inclined downwardly and outwardly from a central point and on which the other ends of said levers bear, the ends of the separate pairs of levers which bear on said tracks or ways being normally extended in opposite directions on the opposite sides of said central point, and a Winding mechanism independent of the load and connected With the extended ends of said levers and adapted to my invention I have signed my name in presence of the subscribing Witnesses this 31st day of August 1910.

WILLIAM II. HUNT.

draw them inwardly and toward said cen- Witnesses: tml point. C. E. MULREANY, In testimony that I claim the foregoing as B. M. RYnRsoN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

- Washington, D. C.

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