US539997A

US539997A - Hay-derrick

Info

Publication number: US539997A
Authority: US
Publication date: 1895-05-28
Anticipated expiration: 1912-05-28

Description

(N0 Model.) 2 Sheets-Sheet 1.

D. OGILVIB.

HAY DERRICK.

No. 539,997. mPatqtea May 28, 1895.

(No Model.) 2 Sheets-Sheet 2.

D. OGILVIB.

HAY DBRRIGK. No. 539,997. Patented/May 28, 1895. l

witnesses UNITED 4Sf'rATES PATENT Enron.

DAVID OGILVIE, OF LEE, NEVADA.

HAY-DERRICK.

SPECIFICATION forming part of Letterslatent No. 539,997, dated May 28, 1895.

Application filed December 13,1894. Serial No. 531,629. (No model.) o

To all whom it may concern.-

Be it known that I, DAvID OGILVIE, a cit-izen of the United States, residing at Lee, in the county of Elko and State of Nevada, have invented certain new and useful Improvements in HayDerricks; and I do hereby declare the following to be a full, clear, and eX- act description of the linvention, such as will 'enable others skilled in theart to which it appertains to make and use the same.

In United States Patent No. 524,862, granted to me on the 21st day of August, 1894, I have shown and described an improved hay elevating derrick. This device has proved most advantageous, but in practice certain defects have been discovered in the matter of convenience in operation, and I have devised the.

presentinvention for the purpose of overcoming these defects and for improving upon the art generally relating to hay elevating derricks. p

The invention consists in the provisionv of means whereby a derrick may be placed upon wheels, the mast thereof may be adjusted to overcome unevenness in the ground, and the Vthrough a portion of the frame, taken on the line a: a; of Fig. 1, showing the pivotallymounted gudgeon-block. Fig. Ilis aside elevation of the traveling carriage ofthe boom, looking from the rear of Fig. 1. Fig. 5 is a bottom plan of the same. Fig. 6 is a vertical section through the same. Fig. 7 is a detail view, in perspective, of the connection for the upper part of the mast. Fig. 8 is a section on the line y y, and Fig. 9 is a section on the line z z, of Fig. l. I

Similar letters and numerals of reference indicate like parts in the several views.

A represents 'the main frame work of the machine, mounted upon suitable wheels at its rear end and upon a truck at its front end. The said frame is strongly built up of longitudinal and cross beams B and C, respectively,

'to be able to withstand the Weight it will be called upon to bear.

D is a block pivoted at each end to longitudinal beams near Athe rearof the framework and E is the mast having a gudgeon in `its lower end journaled in said block D,

whereby the mast is enabled to swing back and forth with said block and also to rotate on the said gudgeon. The mast issupported in its upright position by means of the four braces F. F. and G. G. The former have their lower ends secured to the rear of the frame-Work and their upper ends to the U` the upright I passes a bolt h', whereby the braces G G may have a limited adj ustability up and down to provide for keeping the mast E in a vertical position, notwithstanding the fact that the ground is uneven. These braces G are so attached yto the upright I and to the' part H as to be everywhere parallel thereto. The mast E is held in its working position in the Ulshaped piece H by means of the band or plate J of malleable iron bent to conform to the shape of the mast. The ends of the band it into corresponding grooves in the sides 'of the part H, and the grooves and the plate are so adjusted that the plate may be readily removed. When it is removed, by reason of the mast E being mounted in the pivoted block D, the said mast is permitted to fall down between the parallel braces G, G, and rest on the upright.

Near the upper part of the mast is secured a bracket e in which is a horizontally disposed rod e', which serves as a support and pivot for the boom K. From the top of themast E, run two or more stray or guy ropes a, a,

Ioo

also provided at the top ofthe mast E a bracket carrying two parallel sheaves b, bj

The mast E is vertically slotted near its lower end at c and in said slot is mounted a sheave or pulley d, the axle of the said sheave also securing to the mast a U shaped frame L of malleable iron carrying at its closed end two horizontally disposedsheaves Z, Z.

M is a carriage adapted to travel along the boom K, running upon two rollers m, m, and provided upon one of its sides with a sheave or pulley m and also with a small wooden guide roller m2, which serves the .purpose merely of holding the rope on the sheave m and also to prevent chating. To the lower side of the carriage M is formed aspring actuating clamping lever 'N 011e end of which bears up against the under side of the boom K and engages projecting plates 7c 7c placed at intervals thereon to prevent the carriage from sliding to the mast E. The other end n of the lever N is formed into a tongue which projects somewhat from the carriage and to this is attached one end of the rope 2. By drawing upon this rope the clamping lever is released from the boom and the carriage is free to move.

To the end of the boom K is secured a clevis O extending above the said boom, and having below the boom a vertically mounted sheave o. The rope 2 passes around this sheave o and thence backward through the ring o on the under side of the boom, down to the operator, for a purpose which has been described. Another rope 3 is fastened to the clevis O, after which it passes up to the top of the mast, then down through the pulley b and is fastened to a cleat P at the bottom of the mast, This is for the purpose of adjustingand regulating the position of the boom on its pivot.

The rope 4 is attached at one end to the side of thecarriage M,thenceit passes through the block Q which supports the hay fork, thenceback through sheave m in the carriage M, thence up to pulley b at the top of the mast and thence down through slot it of boom K and over the pulley therein, thence down through slot c over pulley d and out between pulleys 1l for attachment to suitable elevating or draft power.

The invention has now been sufficiently de scribed, it isthought, to enable its operation to be readily understood. In the normal condition of the device, that, is, when it is out of use, or is being transported from one place to another the parts are in the position shown in Fig. 2, with the mast folded down upon the uprightI and the boom folded down upon the mast. To raise the mast it is simply necessary to draw out on one of the guy ropes a when it is secured in its place in the part H by the means heretofore described. The boom is elevated by drawing upon the rope 3, and by thisn it can be secured at any angle with relation to themast. The hay fork or grapple is loaded and the same is raised by the appli cation of the draft power to the rope 4. The boom is swung one way or another for the purpose of getting the load over the stack by means of the U shaped frame L, through which the rope 4 passes around the pulley l. The power being applied from one side or the other of the machine will turn the mast on its gudgeon, and thereby the boom, in just the opposite direction.

I have described my invention in its preferred form, but desire it to be distinctly understood that I do not intend to restrict myself to the exact construction shown and described.

1. In a portable device for elevating hay, the combination of a framework suitably mounted upon wheels, a mast pivotally and rotatably mounted thereon, whereby the same may be rotated and swung to and from its upright position, supporting braces for said mast, means for fastening and unfastening the mast to and from the upper parts of the said braces, a boom pivotally attached to said mast, and means for securing the said mast and boom in their operative positions, substantially asfdescribed.

2. In a de'vice of the character described, the combination of a framework suitably mounted upon wheels, a mast pivotally and rotatably` mounted thereon, an upright secured to the forward end of said framework and a bolt passing through the upper part thereof, two pairs of supporting braces for said mast, the respective ends of one pair of which being attached to the rear of the framework and to a metallic support surrounding the mast, the lower ends of the other pair having longitudinal slots therein which engage the bolt in the upper end of the upright, and the upper ends of the said braces being secured to said metallic support, whereby the said supports may-be adjusted relatively to the frame, substantially as and forthe purpose described. In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

DAVID OGILVIE. Witnesses:

E. A. P. JOHNSON, BENSON CRAIGHEAD.

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