US524312A - crandall - Google Patents

Description

(No Model.) 7 4 Sheets-Sheet 1.-

- H. P. GRANDALL.

GRAIN BINDER.

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' H. P. ORANDALL. v

GRAIN BINDER. No. 524,312. Patented Aug. 14, 1894.

(No Model.) 4 Sheets-Sheet 3.

H. F@ GRANDALL. GRAIN BINDER;

o. 524,312. Paten ted Aug. 14, 1894.

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H. F. GRANDALL, GRAIN BINDER.

No. 524,312. Patsnted Aug. 14, 1894.

UNITED. STATES PATENT O FICE.

HENRY F. ORANDALL, OF MILWAUKEE, WISCONSIN, AssIGNoR TO THE MILWAUKEE HARVESTER COMPANY, OF SAME PLACE. I

GRAIN-BINDER.

SPECIFICATION forming part of Letters Patent No. 524,312, dated August 14, 1894.

- Application filed January 3, 1893. Serial No. 456,981- (No model.)

T0 at whom it may concern:

Be it known that I, HENRY F. CRANDALL, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and:

State of Wisconsin, have invented certain new and useful Improvements in Grain-Binders; and I do hereby declare that the following isa full, clear, and exact description of the invention, which will enable others skilled in the art .to which it pertains to make and use the same, reference being had to the accom I panying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to that class of grain binders in which the grain as it is delivered from the harvester into the binder is formedv into gavels by the action of packers and compressed into compact form for binding between the needle and an opposing compressor arm.

It is Well known by those familiar with the .operation of self-binding harvesters, that the ject of my improvement, which consists essenlease the power previously stored, which is applied to the assistance of the binding mechanism during the operation of compressing the gavels, and certain novel features in the construction and arrangement of the compo- I nent parts of the machine hereinafter debinder embodying my improvements.

scribed and pointed out in the claims. v

In the accompanying drawings like letters designate the same parts in the several fig- Figure l is a perspective view of a grain Fig. 2 is a plan view on an enlarged scale of the power storing device and partsof the binder immediately associated therewith. Figs. 3 and 4 are side .and end elevations, respectively, of the device shown in Fig. 2. Fig. 5 is an edge view of the bevel gear which constitutes a part of the power storing device,

showing the cam by whichsaid gear is disengaged from its driving pinion. Fig. 6 is a front elevation of the binder showing in full lines the needle in the operation of compressing a gavel, and the trip pawl about to release the gear wheel of the power storing device, and Figs. 7 and 8 are respectively end and side views of modifications of myinvention.

A represents the main frame of the binder, constructed in'the usual manner, with two parallel tubular arms a and a, the former carrying the knotter shaft, and the latter the needle shaft. i

B is a continuously rotating shaft driven through a sprocket wheel I) from any convenient part of the harvester and supported in suitable bearingsparallel with the needle shaft by cross sills a and a proj ecting from arm a of the binder frame. Mounted loosely upon shaft B is a pinion 6 provided with a dog b which is pivoted to one side thereof and adapted to engage with the driver 1) se-.

cured upon the rear end of said shaft B. The

dog b is held out of engagement with the d is the trip shaft supported in suitable bearings parallel with the needle shaft 0 and provided at its front end with a trip arm D and at its rear end with an arm (1' extending under and adapted to raise the stop arm 0 the pressure of the inflowing grain turns the trip arm D outwardly, andthereby trips the binding mechanism into gear.

The packers ff, actuated by cranks on the continuously rotating shaft B, operate to accumulate the grain against the trip arm Din the usual manner.-

f is the compressor arm against which the needle arm 0 compresses the grain. It is arranged to drop below the binder deck at .the proper time for discharging the bundles, and

out of engagement with the dog 01 whenever 1 to resume its upright position as the needle descends below the binder deck.

E is a gear wheel mounted upon the knotter shaft and driven by pinion b through intermediate gear wheels e and e as shown in Fig. 1. A wrist pin 6 upon ge'arwheel E connected by a pitnian e with the needle crank 0 causes the vibration of the needle 0 as the wheel E revolves.

No claim is made herein to the particular construction and arrangement of the parts hereinbefore mentioned, but they are shown and described as suitable for use in connection with my-improvements, and for the purpose of more fully and clearly illustrating their application to a binder and their mode of operation.

Referring now to the power storing device or mechanism constituting an essential part of my invention, G is a bifurcated frame or support bolted to a pipe sill f of the binder frame and formed or provided with a sleeve g, which is loosely mounted upon and supported by the shaft B. Upon a vertical stud g projecting upwardly from .frame Gis journaled a gear wheel H which alternately drives and is driven by a pinion h fixed on shaft B.

The support G may be formed integrally with the binder frame, but when it is applied to a machine already built, the construction shown in the drawings is preferable.

J is a close coiled spring, adjustably connected at one end by a threaded rod j and thumb nut j to an arm a projecting from the binder frame. It is attached at its opposite end by means of tap bolt J to a crank g on gear wheel H. A roller 72 journaled upon a stud projecting from sill a of the binder frame over the rim of said gear wheel H holds the latter in mesh with pinion h, and a cam h formed or provided on said gear wheel opposite a corresponding depression in its rim serves by engagement with said roller h to raise said gear wheel when it is in the position shown in Figs. 2, 3 and'6 out of engage ment with said pinion.

The pawl K pivoted in sill a is arranged to engage a stop on gear wheel H, and to arrest the movement of the latter upon its disengagement from pinion h when the spring J is strained and has just passed the line ofcenters of crank g as indicated by dotted line 00 at, Fig. 2.

The hub of needle 0 is fqrmed or provided with a cam 0 which is arranged to engage with an arm 0 of pawl K as the needle advances to compress a gave], and thereby to lift said pawl out of engagement with stop 70 and release gear wheel H.

The crank g is placed a little in-advance of stop k, which is located directly over the lowest point of cam 71. as shown in Fig. 5, the wheel H rotating in the direction indicated by the arrow in Fig. 2. By this arrangement, as the Wheel 1-1 is passing out of engagement with pinion h, the spring J, having passed the line of centers of crank 9 carries said wheel H forward until it is arrested by stop 70 comingin contact with pawl K, and its disengagement from pinion h is completed.

My improved binder, operates as follows: When the machine is set in motion, the continuously rotating shaft B acting through pinion h rotates gear wheel H in the direction of the arrow shown in Fig. 2, and strains the spring J. As the wheel H is raised partially out of mesh with pinion 72, by cam 71. engaging roller h the spring J, having passed the line of centers of crank g continues therotation of said wheel H and completes its disengagement from pinion h. When thus disengaged from pinion h, the wheel H is arrested bystop it coming in contact with pawl K, and the energy previously expended in straining said spring J is stored therein until the wheel H is automatically released by the needle arm 0. The grain flowing into the binder is packed against the trip arm D by the action of the packers in the usual manner, and when a sufficient amount is thus accumulated to form a gavel, said trip arm yields, and through shaft 01 and crank arm .61 raises stop arm 0 out of engagement with dog b the dog b thus released engages with driver Z2 and connects pinion b with the continuously rotating shaft B, thereby setting gear wheel E in motion through intermediate gears e and e The gear wheel E-rotating in the direction of the arrow shown in Fig. 1 and acting through pitman e crank c and shaft c',raisesthe needle arm 0 to compress the gavel. When the needle arm 0 is in the position shown by full lines in Fig. 6, the cam c acting on arm 0 of pawl K raises said pawl K out of engagement with stop 70 and thereby releases said gear wheel H. When thus released,'said gear wheel H is guided by the cam h and roller 1L and moved into engagement with pinion h by the contraction of spring J, and the power stored in said spring is added to that constantly applied to the rotation of shaft B and assists the binding mechanismin the compression of the gavel and the completion of its work.

I wish to be understood that I do not limit mentof parts herein shown and described.

For instance, the gear wheel I-I may be made as shown in Fig. 7 without the cam for raising it out of mesh with pinion h, three or more teeth being omitted therefrom at the proper point in its face to accomplish the same result, and in Fig. 8, in place of spring J a weight connected by a cord or chain passing over a sheave with crank g as shown in Fig. 8. a

I claim- V 1. In a grain binder, the combination with the binding mechanism, a continuously rotating driver and means of intermittingly connecting the same, of a power storing device arranged to be intermittingly connected with said driver and to impart to the binding mechanism, during the operation of compression,

7 power previously received from said driver, and a trip arranged to automatically release said power storing device at the proper time, substantially as and for the purposes set forth.

5 2.'I-n a grain binder, the combination with and arranged to be operated by the binding mechanism, to automatically release said power storing device at the proper time, substantially as and for the purposes set forth.

3. In a grain binder, the combinationvwith the binding mechanism and a continuously rotating driving shaft provided with a pinion,

of a power storing device comprising a gear .wheel constructed and arranged to intermittingly engage said pinion, a device connected therewith and constructed and arranged to impart to the binding mechanism during a portion of the revolution of said gear power received from the driving shaft during another portion of the revolution of said gear, a stop arranged to arrest the movement of said gear when it is disengaged from said pinion, and a trip arranged to automatically release said gear at the proper time, substantially asand for the purposes set forth.

4:. In a grain binder, the combination-with the binding mechanism and a continuously rotating driving shaft provided with a pinion, of a gear arranged to intermittingly engage said pinion and provided with a crank, a spring connecting said crank with a relatively fixed support, a stop arranged to arrest the rotation of said gear when it is disengaged from said pinion, and a'trip operated by the binding mechanism to release said gear at the proper time, substantially as and for the purposes set forth.

5 5. In a grain binder, the combination with the binding mechanism and a continuously rotating driving shaft provided with a pinion, of a gear arranged to intermittingly engage with said pinion and provided with a crank,

a spring connecting said crank with a rela tively fixed support on the frame, means of adjusting the tension of said spring, a stop arranged to arrest the movement of said gear when it is disengaged from said pinion, and a trip automatically operated by the binding mechanism to release said gear at or near the beginning of the operation of compression, substantially as and for the purposes set forth.

6. In a grain binder, the combination with the needle arm, an opposing compressor arm, and a continuously rotating driving shaft provided with a pinion, of a gear arranged to en-- gage intermittingly with said pinion and to impart to said needle arm during the operation of compression the power previously received from said driving shaft, and a trip operated by the needle arm to release said gearat or near the beginning of the operation of compression, substantially as and for the purposes set forth.

7. In a grain hinder, the combination with the needle arm, an opposing compressor arm, and a continuously rotating driving shaft provided with a pinion, of a gear provided with a crank and with a cam, a relatively fixed roller overhanging the rim of said gear and arranged by engagement with said cam to disengage said gear from said pinion, a spring connecting said crank with a relatively fixed support on the frame, a. trip pawl movable into and out of engagement with a stop' on said gear, and a cam on the needle arm arranged to move said pawl out of contact with said stop and thereby release said gear as the needle arm is advanced against the gavel to be compressed and bound, substantially as and for the purposes set forth.

HENRY F. ORANDALL. [1,. s.]

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