US972557A - Elevated carrier. - Google Patents

Description

L. A. MARTIN.

BLEVATED CARRIER.

APPLIGATION Hmm JULY 7. 1909.

Alim/nay v @NTE s LOUIS A. MARTIN, OF STEVENS POINT, WISCONSIN.

ELEVATED CARRIER.

Specification of Letters Patent.

Application filed July 7, 1909.

Patented Oct. 11, 1910. serial No. 506,364.

To all whom 'it may concern:

Be it known that I,LOU1s A. MARTIN, citizen of the United States, residing at Stevens Point, county of Portage, and State of Tisconsin, have invented certain new and useful Improvements in Elevated Carriers, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to an elevated carrier, and particularly to an automatically dumping bucket adapted to be controlled by means upon the track or way for the carrier.

The invention has for an object to provide a novel and improved construction of the tripping mechanism for releasing the pivoted catches which normally engage and retain the bucket in upright position.

Other and further objects and advantages of the invention will be hereinafter fully set forth and the novel features thereof defined by the appended claims.

In the drawing z- Figure l is an elevation of the invention; F ig. 2 is a detail elevation of the opposite side of the carrier at the left end thereof; Fig. 3 is an end view at the right end of the carrier; Fig. 4 is a detail perspective of the tripping lever.

The numeral 10 designates the main frame of the carrier which may be of any desired construction or configuration and is provided with the usual carrier wheels 11 adapted to travel upon the track or way 12. These wheels are supported from the frame in any desired manner, for instance, by means of the standard 13 upon which they are journaled at 14, the lower end of said standards being rotatably mounted in the bearing 15 carried upon one face of the frame 10, as shown in Fig. 2.

The lower end of the frame is provided upon one face with a guide 16 through which the raising bar 17 passes, the lower end of this bar being curved inwardly and provided with a bearing 13 to receive the pivot 19 from the bucket or receptacle 20. This pivot is disposed at the lower portion of the bucket so that the latter when released turns` completely over, as usual, in this classI of devices. The raising bars 17 are provided at their upper ends with a lateral extension 2l which is connected by a chain or other flexible connection 22 to the winding shaft 23. This shaft may be actuated in any desired manner, for instance by means of the sprocket wheel 24 secured thereto and cooperating with the chain 25 which also passes over the driving wheel 26. This driving wheel may be rotated by means of the handle 27 and held in adjusted position by a ratchet wheel 28 secured upon its shaft and coperating with the holding pawl 29, as shown in Fig. 1. These parts may be supported in any desired manner, for instance, by means of the bracket 30 secured at one side of the frame 10. The shaft 23 is mounted in bearings 31 at opposite sides of the U-shaped frame 10.

For the purpose of holding the bucket in upright position, latches 32 are pivotally mounted at 33upon the lifting bars 17, and the inner ends of these latches are automatically moved by the weighted outer ends thereof into a slot or recess in the latch plate 34 upon the bucket. This plate, as shown, is duplicated upon opposite ends of the bucket, and the latches are normally retained in locking position by the weighted ends 35 thereof. For the purpose of actuating these latches to release the same, angular rock levers 36 are pivoted at 37 upon the upper portion of the frame, and the lower end 48 thereof pivotally connected with a push rod 39 which contacts with the upper face of the latch 32. When two of the rock levers are used the adjacent ends 38 thereof are overlapped and lie parallel to each other, as shown in F ig. 4. These ends are disposed within a keeper' 40 carried by the lower end of the trip lever 41 which is pivoted upon the frame at 42. The upper end of this trip lever is laterally disposed at 43 and adapted to engage in its travel any desired stop or projection 44 carried by the track or way 12. The push rods 39 extend at their lower ends through guides 45 secured to the frame. The upward movement of the latches is restricted by a stop 46 disposed on the lifting bar.

In the operation of the invention it will be seen that the lifting bans upon which the bucket and its holding latches are pivotally mounted may be raised and lowered relative to the main frame through the winding shaft and its driving connections, and may be held at any desired position or elevation for either loading or discharge. The holding latches are held by gravity in locking contact with the bucket and may be released therefrom by an oscillation of the tripping lever and the rock lever and rod connections which force the engaging end of the latch downward and thereby release the bucket to permit the dumping thereof. The structure here shown is adapted to operate the latches at opposite ends of the bucketsimultaneously and in either direction of movement of the carrier, as an oscillation of the trip lever in either direction raises the ends of the rock levers carried thereby thus producing an inward movement of the lower ends thereof and a downward pushing action upon the releasing` rods. It will therefore be seen that the invention presents a. simple, efficient and economically constructed form of carrier adapted to be constructed of plate or bar material so as to secure the utmost rigidity with the minimum of weight, while the releasing` action is direct, and the latch is adapted to automatically engage and hold the bucket as it is swung into upright position.

Having described my invention and set forth its merits, what I claim and desire to secure by Letters Patent is l. In an elevated carrier, a supporting and carrying frame, a bucket pivoted upon a lifting frame slidingly mounted upon and guided by said supporting frame, a latch pivoted to the lifting frame beneath the top of the bucket and rising and falling therewith and having a tension device upon it-s outer end, a latch operating lever pivota-lly mounted upon said supporting frame, a push rod carried by said lever and guided by said carrying frame to engage the inner' end of said latch and disconnected therefrom, and a pivoted trip lever mounted upon the frame and engaging said latch operating lever.

2. In an elevated carrier, a supporting frame, slidingly mounted raising bars mounted thereon, a bucket pivoted upon said bars, latches pivoted upon said bars to engage said bucket at their inner ends, al tension device provided at the outer end of said latches, oppositely disposed angle levers pivotally mounted upon said frame, a push rod carried by the lower end of each of said levers to engage the inner end of said latch and disconnected therefrom, and a pivoted trip lever mounted upon the frame and having ak lateral extension beneath its pivot to engage the opposite arms of said lever.

3. In an elevated carrier, a supporting frame, slide bars mounted thereon, a receptacle pivoted upon said bars, a latch pivoted upon said bars to engage said receptacle at its inner end, a tension device provided at the outer end of said latch, an angle lever pivotally mounted upon said frame, a push rod carried by the lower end of said lever to engage the inner end of said latch and disconnected therefrom, and a pivoted trip lever mounted upon the frame and having a lateral extension beneath its pivot extended below and embracing one arm of said angle lever.

4. In an elevated carrier, a U-shaped frame provided with carrier wheels at its upper portion, guides at the lower ends of said frame, a winding shaft carried by said frame, slide bars mounted in said guides and connected to said shaft, a receptacle pivoted at the lower ends of said bars, latches pivoted upon said bars beneath the top of said receptacle and provided with weighted outer ends to cause automatic engagement with said receptacle, angle levers pivoted at the upper portion of said frame and havingl overlapping upper ends and depending ends parallel to the sides thereof, depending push rods carried by the lower ends of said levers and disconnected from said latches, and a trip device mounted upon said frame to engage and simultaneously operate said overlapping ends.

5. In an elevated carrier, a frame, a trip lever pivot-ally mounted thereon and provided with laterally extending keepers at opposite sides of the pivot thereof, rock levers pivoted uponsaid frame and having parallel overlapping free ends embraced by said keepers, depending rods pivotally connected to said rock levers, a receptacle pivotally supported by slide bars mounted on said frame and provided with latch plates at opposite ends, and pivoted latches disposed upon said slide bars and arranged to engage said plates and to be actuated by said rods.

In testimony whereof I afiix my signature in presence of two witnesses.

LOUIS A. MARTIN.

IVitnesses:

ROSE BUNIN, H. J. FINCH.

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