US514355A

US514355A - Derrick

Info

Publication number: US514355A
Authority: US
Publication date: 1894-02-06
Anticipated expiration: 1911-02-06

Description

(No Model.)

s. R. FRENCH.

2 Sheets-Sheet 1 DERRICK.

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DERRICK.

Patented Feb. 6

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SAMUEL R. FRENCH, OF FARMINGTON, IOWA.

DERRICK.

SBEGIFIOATION forming part of Letters Patent No. 514,355, dated February 6, 1894.

Application filed May 26, 1893. Serial No. 475,580. (No model.)

To all whom it may concern.-

Be it known that I, SAMUEL R. FRENCH, a citizen of the United States, residing at Farmington, in the county of Van Buren and State of Iowa, have invented a new and useful Derrick, of which the following is a specification.

My invention relates to improvements in derricks, the objects in view being to provide a derrick that is portable, exceedingly strong and durable; that consists of few parts and is adapted especially for elevating and carrying deposits of hay from the ground to and from stacks, whereby the hay may be conveniently ricked or stacked; and, furthermore, that is capable of being operated by horse power and which requires but one attendant during such operation; and finally to provide means for shipping and unshipping the boom.

With these and other objects in view the invention consists in certain features of construction hereinafter specified and particularly pointed out in the claims.

Referring to the drawings:-Figure 1 is a perspective view of a derrick constructed in accordance with my invention, the parts being in the position they occupy when in the act of taking up a deposit of hay. Fig. 2 is a similar view, the parts being in the position they occupy when in the act of delivering a deposit of hay. Fig. 3 is a longitudinal sectional view of a portion of the track and the sliding dog arranged thereon. Fig. dis a vertical longitudinal sectional View through the upper end of the mast and the central part of the lever. Fig. 5 is a detail of the bearing-collar and socket combined.

Like numerals of reference indicate like parts in all the figures of the drawings.

The truck upon which I mount the derrick consists in this instance of a series of three runners 1, and the same have let into their upper edges transverse beams 2. These beams project beyond one of the runners and have their edges terminating upon a circle concentric with that point of the truck where the central beam and central runner intersect. Surmounting the outer ends of the beams and the rear ends of the runners is a curved track or way 3, the same being formed of I-iron and having its lower flange or base securely bolted to position to the said beams and runners. A central bearing mortise l is located at the intersection of the central-beam and centralrunnerand stepped therein atits lower end is a rotatable post or mast 5. Between its ends the post or mast has an annular reduction or bearing-portion 6, and surrounding the same at this point is a pair of opposite half circular collar-sections 7, which have flanges 8 at their ends, that are bolted together as at 9, and which furthermore are provided with sockets 10. Into these sockets take and are secured the upper ends of a series of braces l1,whose lower ends rest upon the front and rear beams 2 and are connected to the same at their points of intersection with the outer runners 1 by angle-plates 12 bolted to the beams-and to the braces.

The upper end of the post or mast is bifurcated or slotted as at 13, and one of the bifurcations or terminals is longer than the other and has supported thereon in any suitable manner a pulley 14. A hoisting-rope (shown by dotted lines in Fig. 2) may be passed over the pulley and down through a guide-pulley 16 conveniently placed upon the frame, and to it maybe hitched a horse for the purpose of operating said hoisting-rope. The upper end of the rope has a book 17, for the purpose of engaging the hereinafter described boom for the purpose of lifting the same to its bearing in the mast. The boom 18 preferably consists of a number of timbers bolted together at suitable points so as to render it solid and is of such width as to fit between the aforesaid bifurcations, each timber being of such length as to permit of its insertion in a freight-car. Perforations are formed in the bifurcations and in the boom and through the same passes a transverse bearing-pin or shaft 19, whose ends project beyond the opposite bifurcations and have fitted thereover loose sleeves 20, whose outer ends project beyond the shaft and are notched as at 21. Interposed between the inner ends of the sleeves and the mast is a pair of loose washers 22, against which the inner ends of the sleeves bear. The boom, as is usual, is tapered from its butt toward its operating end, and a metal collar 23 is driven thereover. This metal collar has upper and opposite side eyes 24: and 25 respectively, and they are longitudinally

oppositecorresponding eyes

26 and 27, formed respectively upon the upper and opposite sides of the boom near its butt. Between the side eyes perforated brackets 28 are located and secured to the sides of the boom, and truss-rods 29 are connected to the said side eyes, pass" through the brackets,and rest in the notches in the outer.

rendered rigid and strong, being thoroughly braced as shown. The boom is further provided at its rear end with a pulley 33 and has its lower corner cut away or beveled as indioatedat 34. g

Mounted for movement upon the circular track before described is a sliding plate or carriage 36, from the opposite edges of which depend L-shaped keepers 37 that engage with the flange of the track and serve to retain the carriage imposition thereon; A pair of bearing-ears 38 is formed upon the upper side of the carriageand the upper ends thereof are connected by a bail 39, to which is attached one end of the operating-rope 40, the remaining end being passed up over the pulley upon the butt end of the boom anddown under a guide-pulley 41 located upon the carriage, and from thence through a system of guidepulleys 42 to one end of the track, where af-- ter passing around a pulley 43 terminates in suitable draft devices '44, through which draft may be applied in the usual manner. A stop 45 is located upon the operating rope, so that after saidrope has been drawn a certain distance the stop coming in contact with the housing of the pulley upon the rear end of theboom will cause said boom to become depressed or lowered at said end and a consequent hoisting at its opposite or outer end.

Loosely pivoted between the bearing-ears of the carriage is an L-shaped dog or looking-latch 46, whose outer end is heaviest, carries a loose friction wheel, and is adapted to fall by gravity and engage at said end with the end of the track and thus lock the carriage against movement upon the track until after said locking-end has been elevated by a depression of the opposite end of the dog, through the medium of the butt end of the boom, which is drawn down and contacts therewith and is ridden over by the beveled portion thereof.

It will be understood that the outer end of the boom is provided with the usual hay-sling and fork, not shown herein, whereby deposits of hay may be grasped.

In operation, the parts being in the position shown in Fig. 1, the operating-rope 40 is loosened so as to permit the outer end of the boom to lower and a deposit of hay is engaged by the fork or sling, whereupon the team is started and the operating-rope drawn through the system of pulleys until the butt of the boom is drawn down so as to bear upon the tail-end of the dog or latch, which causes an elevation of the opposite end of said dog and a consequent unlocking'of the carriage from the track and the tail end of the dog to bind upon or clamp the rope. A continued draw lng upon the rope causes the carriage to move over the track toward the system of guide-pulleys, the rope being securely held,

and thus swing the boom with its deposit of hay over the proposed hay-rick, where the hay is dropped. After the hay has been liberated, the carriage is moved back to the starting point, where'it islocked by the dog, and the rope 40 released and its front end relowered for a newdeposit of hay, such return of the parts being accomplished by a drawing upon the fork or sling supporting rope.- By the continued operation of the derrick it will be seen that deposits of hay may be success ively engaged and raised and swung to a point I over the rick, whereby an operator standing upon the rick may readily distribute the same,

thus forming a rick that is uniform.

Various changes may be made in the de tails of my invention withoutdeparting from the spirit thereof, and I therefore do not limit the same to such details as I have herein shown and described.

When moving theapparatus one end of the rope 40 may be tied to the opposite side of the machine frame and the team hitched to the middle. After arriving at its destination, the machine is of course staked down. The derrick will be found useful in handling freight, rock, 850.

Having described claim is- 1. In a derrick, the combination with a vertical mast or post, a tilting boom mounted upon the upper end thereof, of a curved track, a carriage mounted upon the track, a locking latch mounted upon the carriage for engaging the track, guides, andan operating rope connected to the boom and passing under the guides and adapted to contact with the tail of the locking latch, substantially as specified.

2. In a derrick, the combination with a swiveled mast, a boom fulcrumed thereon, a pulley on the rear end of the boom, of a curved track, a carriage on the track and provided with bearing-ears, a rope connected at one end with the carriage and passed loosely over the pulley, a system of guide-pulleys for the rope leading toward one end of the track, a stop for the rope, and a gravity-latch fulcrumed in the bearing-ears and adapted to engage the end of the track, and when depressed at its opposite end to clamp the rope, substantially as specified.

3. In a derrick, the combination withaportable truck, a curved track arranged thereon, a system of guide-pulleys arranged adjacent to and upon the track and terminating at one end thereof, a carriage loosely mounted on the track and having clips engaging the flange thereof, a weighted lever fulcrumed on the carriage and adapted to engage one end of my invention, what I the track, a bail arranged upon the carriage above the lever, a guide-pulley carried by the carriage in rear of the bail, of a fulcrumed boom, a pulley upon the rear end thereof, said rear end being adapted to abut against the tail end of the latch, an operating-rope connected to the bail provided with a stop, passed over the pulley of the boom and under the pulley of the carriage, and through the system of guide pulleys, substantially as specified.

4. In a derrick, the combination with the runners, the series of transverse beams, the outer ends of the latter extending beyond one of the runners, the curved track supported upon the rear ends of the runners and the outer ends of the beams, the series of inclined braces secured to the points of intersection between the beams and runners, the hearing at the center of the truck, the post or mast stepped in the bearing and having an annular reduced portion between its ends, the collarsections bolted thereon and provided with sockets receiving the upper ends of the braces, of the boom fulcrumed on the upper end of the mast, the pulley on the rear end of the boom, the removable carriage mounted on'the track, the weighted lever fulcrumed on the carriage, the system of guide-pulleys, and the operating-rope connected to one end of the carriage, passed over the pulley of the boom, loosely'connected to the carriage, and passed through the system of guide-pulleys, substantially as specified.

' 5. In a derrick, the combination with a bifurcated post having bearing openings, aboom having a bearing-opening and arranged between the branches of the post, of a shaft passing through the perforations of the branches and the boom and beyond the same, washers located upon the shaft, sleeves arranged upon the shaft and having their outer ends notched, and truss-rods resting in the notches and se cured at their opposite ends to the boom near its ends, substantially as specified.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

SAMUEL R. FRENCH.

Witnesses:

L. S. MEEK, WILLIAM H. Runs.