US369662A - fowler stood ard - Google Patents

Description

(No Model.) E. P. STODDARD .BALING PRESS.

No. 369,662. Patented Sept. 6, 1887.

UNITED STATES PATENT UrErcE.

FOWLER STODDARD, OF DAYTON,

OHIO, ASSIGNOR TO THE FARMERS BALlNG-PRESS.

SPECIFICATION forming part of Letters Patent No. 369,662, dated September 6, 1887.

Application tiled December 23,1886. Serial No. 222,393. (No model.)

To all whom it may concern:

Be it known that I, E. FOWLER STODDARD, of Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Baling-Presses, of

which the following is a specification.

The object of my invention is to provide an automatically-retracting pitman and plunger in a baling-press. My improvement is adapted to be driven by the vibratory travel of a lever, usually moved to and fro by horsepower. The turning of the team occupies considerable time, and when the power of the team is employed to retractthe plunger 21 1 large portion of the time is occupied by the travel to and fro of the plunger across the opening into which the hay is fed to the action of the plunger. My invention secures the quick and automatical return of the plunger as soon as the vibratory pitman passes the central line of its travel, thereby shortening the necessary distance of the travel of the team and driving-lever, as well as lessening the period of plunger retraction, all of which is set forth in the accompanying drawings, making a part of this specification, in which-- Figure l is a perspective view of my improvement, with parts of the baling box broken off to show the construction. Fig. 2

is a topplan view of the same, with parts of the top of the box broken off. Fig. 3 is a top plan View of the oscillatorylever or driving-tongue. Fig. 4is amodification of an adjustable retractile spring.

1 represents theloottoxn of a haybaling box;

2, the sides; 3, the top.

4 represents the opening in the top of the compressor-box, in which straw, hay, or other materials to be compressed are inserted.

6 represents the plunger.

7 represents a vibratory pitman, pivoted at one end, 8, to the plunger, and at the opposite end, 9, to a link, 10, which link is in turn pivoted to an oscillating bracket or drivingsupport, 11, the forks 13 being pivoted between ears 14 15 of the bracket 11, 16 representing the pivotbolts. This bifurcation,

so as to have the forks 13 near the top and bottom of the bracket 11, is for the purpose of strengthening the parts and lessening the strain-thrusts on the journals of pivot 16, being nearer the base of the supporting-pivot.

17 represents propelling-arms rigidly secured to the oscillating support 11, the ends of which are beveled, so as to engage rcspectively and alternately against the sides of link 10, to drive forward the pitman and plunger. The oscillatory lever or tongue is preferably made of two pieces, 18 and 19, provided with tenons 20, which engage in sockets in arm 22, which arm is rigidly attached to bracket 11.

I preferably make the parts ll, 14, 15, '17, and 22 of metal cast in one piece.

23 represents the tie-rods; 24, a brace-rod formore rigidly attaching the tongue to the driving device.

It will be seen that my plunger driving mechanism operates as a link-lever. which operation is especially advantageous for driving a plunger to compress elastic materials, such as straw, hay, shavings, &c. In the first part of the operation of compressing a charge of materialsuch as hay-but little power is re quired for the maximum part of the compression, the power applied being gradually increasingly greater as the charge is compressed, so in the operation of a link-lever the power obtained is the least in the con niencement or at the point of the greatest detlection of the central pivot from the deadcenter line, and increasing proportionally as it is moved or driven up to the center, where it terminates; hence the employment of the link-lever with the power applied by straightening the link as the plunger isdriven forward is very advantageous in a hay-baler. When elastic material-such as dry hay-is compressed, the plunger will be automatically thrown back by the expansion of the charge as soon as the axis of the central pivot or the pitman-link has passed the dead-center; but when the material is not elastic a retractile spring is employed upon the pitman 7 in the following manner:

25 represents a spring compressioirrod. 26 represents brackets in which the same is sup ported and held in the proper planes for re eiprocation. v

27 represents a roller journaled in the fork of the compressing-rod 25.

28 represents a coiled spring, one end of which seats against the front bracket, 26, and the other end against the pin 29. r

30 represents an offset or abutment formed in the baling-box, against which the roller 27 strikes. As the pitman 7 is driven forward the roller 27 travels laterally across the abutment 30 in the path indicated by dotted lines 31. As the pitman 7 moves in the arch ofa circle, driving the roller 27 across the box, the compressing-rod 25 moves laterally up in its support 26, the pin 29 compressing the spring. As soon as the central pivot, 9, has

passed the line or center a b, the spring commences to retract, and it throws or draws the plunger rapidly back as the roller travels across the remainder of its track 31, arriving at the opposite side of the baling-box, ready to repeat its operation as the pitman is again driven forward from the opposite side, as will presently be explained.

Mode of operation: I preferably employ horse-power to operate my baling-plunger. The team is hitched to point 32 of the oscillatory lever or tongue. The parts are placed in position as shown in Fig. 2, the face of the plunger being back of the line 4 of the feedopening in the baling-box. resents the central line of draft at thestarting-point. As this line of the tongue or oscillatory lever is moved forward in the direction of the dotted line a b one arm, 17, comes in contact with link 10, and commences to straighten said link untilthepivot9 is brought in line with the pivots 8 and 16, as shown in dotted line i, Fig. 2, during which movement the plunger 6 has passed from the position shown in full lines, Fig. 2, to the position I shown in dotted lines 33. As soon as pivot 9 passes the central line, i, the force of the spring 28, or the elasticity of the charge driven forward by the plunger, will quickly retract the plunger 6, pitman 7, and link 10, carrying it over to the opposite side of the box, bringing the pivot 9 to a position indicated by the dotted lines In, at which time the team has moved to line 0 d, and is turned around to move the oscillatory lever in the opposite direction, the reverse movement of which operates the link and pitman by the contact of the opposite driving-arm 17 against the opposite side of link 10, driving the plunger forward in the same manner as before described, except that the movement of the driving-arm, link, and pitman is from the opposite side of the box.

It will be observed that the link 10 and pitman 7 are pivoted at each end upon their respective journals. They are free to move in eitherdirection, according as the power is applied, and that when either arm 17 is in contact with link 10 there is a free space between the opposite side of link 10 and the opposing arm 17 and that as soon as pivot 9 has passed the dead-center, traveling in either direction, power applied to the plunger or to the pitman 7 by the spring operates to throw the link quickly to the initial starting position, but on the opposite side of the baler; hence the plunger is automatically retracted in the operation of my baling device and exposes the feed-opening 4 for the reception of the charge a much longer time than is possible with this class of machines in which the plunger is re- The line ef reptracted by power of the team, for not only is the time of retraction of the plunger lessened, but the feed-opening is exposed also during the time occupied'in the turning about of the team as well. Thus my improvement applies the power in a better manner and is also operated in baling hay more rapidly than other devices hitherto applied for similar purposes.

Fig. 4 shows a modification of the springsupport, so that its tension may be adjusted or released entirely when its use is not required. The pitman 7 supports the cars 26, one of which is provided with a slot. represents through-bolts for securing arm 33 in any desired longitudinal adjustment to in; crease or decrease the tension of the spring.

The ordinary retainers to prevent undue expansion of a compressed charge in the balingbox are not shown; but of course it is desirable to use them.

I claim 1. The combination, in a baling-press, of the reciprocating plunger, the pitman hinged thereto, an oscillating support, link-arms pivoted to the pitman'and to the oscillating support, and arms 17 on said support arranged at opposite sides of the link-arm and alternately operating thereupon, substantially as described.

2. The combination, in a baling-press, of the plunger, the pitman hinged thereto, the oscillating support, the link-arm hinged to the pitman and to the support, and an oscillating lever rigidly secured to the oscillating support, and having driving-arms extending at opposite sides of the link, substantially as described.

3. The combination, in a baling-press, of the plunger, the pitman, and the link-arm hinged to each other, and the compressionarm and retracting-spring mounted on the pitman. with the oscillating support having arms 17 extending at opposite sides of the link-arm and alternately operating thereupon, substantially as described.

4. In combination with the pitman, the baling-box provided with abutment 30, the ears 26, compression-rod 25, carrying roller 27, the spring 28, and the pin 29, substantially as described.

5. In combination with the plunger, pitman, and link-arm 10, hinged to each other, and the link-arm journaled to the driving support, the compression rod and spring at tached to the pitman, and box, substantially as specified.

6. In combination with the pitman and plunger, the baling-box provided with abutment 30, and the spring 28 and compressingrod 25, carrying roller 27 against and across said abutment, substantially as specified.

In testimony whereof I have hereunto set my hand.

E. FOW'LER STODDARD.

Witnesses:

CHAS. J HALL, WM. W. WAGNER.

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