US473318A - Spring conveyer - Google Patents

Description

(No Model.)

O. L. JONES SPRING GONVEYBR;

No. 473,318 Patefite'd Apr. 19, 1892.

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OLIVER L. JONES, OF GOLD SPRING HARBOR, NEWV YORK.

SPRING. CONVEYER.

SPECIFICATION formingpart of Letters Patent No. 473,318, dated April 19, 1892.

Application filed October 1'7, 1890. Renewed October 10, 1891- Serial No. 408,291. (No model.)

To all whom it may concern.-

Beit known that I, OLIVER L. JONES, of Cold Spring Harbor, in the county of Suffolk and State of New York, have invented a new and Improved Spring Conveyor, of which the following is a full, clear, and exact description.

My invention relates to improvements in spring conveyers; and its object is to'provide means whereby a screw conveyer may be forced into a bank under a constant pressure, so that if it is kept revolving it will work very easily and rapidly.

My invention is intended to be used in a small way by hand or in a larger way by ower.

To this end my invention consists in a revoluble screw conveyer adapted to be forced into a bank and suitable springs connected with the conveyor, so as to maintain a constant endwise pressure upon the same, as hereinafter fully described, and specifically pointed ontin the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in both the figures.

Figure 1 is a vertical longitudinal section of the device, showing the conveyer entering a bank; and Fig. 2 is a vertical transverse section of the same.

A suitable frame Ais provided for carrying the device, the frame being of any suitable construction and being preferably mounted upon legs, which terminate in dull points a, so that when resting upon the ground they will force their Way into it, and thus hold the machine in a rigid position. A shaft 13 extends longitudinally through the frame, being mounted in suitable bearings therein, and one end of the shaft carries a screw conveyer B, the conveyer being formed by providing the shaftwith the blade I), which extends spirally around it in the usual manner, and the conveyer terminates in an auger-point b to enable it to easily entera bank, as O. The opposite end of the shaft B is provided with a crank 12 so that the conveyor may be turned by hand, and it also carries a pulley 12 to which a belt may be applied to run the conveyer, as indicated by dotted lines in Fig. 2.

The shaft B is also provided with a collar I), which is fixed thereto and which enables the shaft to be pushed into the bank in the manner described below.- Two powerful spiral springs D are mounted on a transverse shaft or bar E beneath the shaft B and at right angles to the same, the springs being fixed at one end to the shaft and having their free ends connected by chains E with the crosshead F, which loosely engages the shaft B and which is connected with a rack F, which slides in the slideway A of the frame A, the said rack aligning with the shaft B and having teeth upon its upper edge, as best shown in Fig. 1. The cross-head F has bolts fon opposite sides, to which the chains E are attached, and the rack F. has Vertical flanges f on opposite sides, between which fits the pinion by which the rack and cross-head are moved back, as described below. The springs -D will thus operate on the cross-head F and press the same against the collar 6 on the shaft B, and thus force the conveyer into the bank 0, the movement being limited by the uprights of the frame A, as shown in Fig. 1, and it is obvious that as the springs are very strong means must be provided for forcing the cross-head back to its normal position, as shown in Fig. 1, to put the springs again under tension, and to this end a transverse shaft 11 is mounted in the upper portion of the frame at right angles to the rack F, the said shaft being provided at one end with a gear-wheel H and at the other with a pinion H which meshes with the rack F. A pawl 72. is pivotcd above the gear-Wheel H, so as to engage the teeth of the same and prevent it from turning back, and above the shaft H is a shaft J, having at one enda pinion J, which meshes with the gear-wheel H, and having at its opposite end a crank J by means of which the shaft may be turned. It will thus be seen that by turning the shaft the gear-wheel H and pinion H may be also turned, and the rack and cross-head will be thereby forced back into the position shown in Fig. 1, and the pressure of the springs will reverse the movement and force the conveyer into the bank. The conveyer while being forced into the bank by the springs is revolved by means of the crank 12 or the pulley b and it operates in the usual way, the material being carried by the blade Z) and deposited in the rear of the conveyer.

This conveyer is capable of use in either a natural or an artificial bankas, for instance, a culm-pile.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent 1. The combination, with a revoluble screw conveyer, of coil-springs for imparting an end- Wise movement to the conveyer and means for putting the springs under tension, substantially as described.

2. The combinatiomvvith a revoluble screw conveyer, of coil-springs having their inner ends secured to a shaft and their outer ends connected with the conveyer-shaft, so as to exert an endwise pressure upon the screw, substantially as described.

3. A spring conveyer comprising a frame having a conveyer mounted therein, a crosshead mounted upon the conveyer-shaft, so as to press upon a collar of the same, coil-springs having their inner ends secured to a shaft and their outer ends connected with the crosshead, and a gear mechanism for moving the crosshead in opposition to the springs, substantially as described.

4. A spring-conveyer comprising a frame havinga screw conveyer mounted therein, the conveyer-shaft having a collar thereon, as shown, coil-springs mounted upon a shaft and having their inner ends secured to the same, a cross-head adapted to slide upon the conveyer-shaft and press against the collar, said cross-head being connected to the free ends of the springs and having a toothed rack upon its upper side, and a gear mechanism to mesh with the rack and turn the cross-head in opposition to the springs, substantially as described.

OLIVER L. JONES. Witnesses:

W. S. WALKER, C. SEDGWICK.

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