US102729A - Improvement in hay and lime elevators - Google Patents

Description

A. 8v G. D. THO-MAS. HAY AND LIME ELEVATOR;

No. 102,729. Patented May 3, 1870.

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ABRAHAM THOMAS AND GEORGE D. THOMAS, Oli -S"l-. THOMAS, PENN-- SYLVAN IA.

Letters Patent No. 102, 729, dated May 3, 1870.

IMPROVEMENT IN HAY AND LIME ELEVATORS.

The Schedule referred to in these Letters Patent'and making part of .the same To all whom it may concern:

Be it known that we, ABRAHAM THOMAS and GEORGE THoMAs, of St. Thomas, in the county of Franklin and in the State of Pennsylvania, have invented certain new and useful Improvements in same, we will 'now proceed to desciibeits construction and operation, referring to the annexed drawings, in which Figure l is a side view of our elevator, the carriage being in section, and

Figure '2 is a transverse vertical sect-ion of the tub or bucket. A represents the elevating-carriage, provided on its inside with two rollers a a, which rest upon and move on the beam B supporting the carriage.

On the under side of the beam B is a transverse 'bar, 0, against which the carriage stops.

In the lower end of the carriage A is an inclined passage, D, open at both ends, the lower end being wider than the upper.

In the lower rear end of the carriage is attached a' rope, I), which passes over a pulley, d, in a post, E, which projects downward from the beam B, said rope being, at its end, provided with a weight,.G, for the purpose of drawing back the carriage against the bar 0'.

In the carriage, in rear of the passage D, is attached the hoisting-rope e, which passes down around a pulley-block, H, to which the hay-fork orthebucket is attached.

The rope c then passes up around a pulley, f, in the carriage in front of the passage D, thence around a pulley, g, in a, post, I, projecting downward from the other end of the beam B.

From this point the rope 0 passes back again through a pulley-block, J, and down to the power employed for hoisting.

From the upper end of the pulley-block H projects a metal loop, 71, which, when the load is hoisted up, projects through the passage 1), and strikes a weigh ted lever, K, causing the same to rise and push an arm,

0', through the loop It, across the tonend of said passage, thus suspending the load on the same.

The lever K is bent, and pivoted in the carriage A, its longer arm being weighted at its rear end, and its smaller front end, which is bent downward, having the arm i pivoted to it.

When no load is on the arm i, the weighted end of the lever falls down, 'so. that its angle, that is, the angle of the bent lever, will project into'a notch, it, out in the lower side of the beam B at a suitable point to prevent the carriage from moving on the beam while the load is being hoisted.

When the lever K has been raised, as above set forth, and its angle released from the notch k, the car riage moves to the other end of the beam B, it being, of cou'rse,.understood that the power is still being applied to the hoisting-rope.

At the front end of the beamB is pivoted a hook, L, the rear hooked end of which falls down in the position shown in fig. 1.

\Vhen the carriage reaches the hookL, therear end of the hook presses on the upper side of the lever K, causing its rear weighted end to drop down the angle of the lever fitting into a recess on the under side of the beam made for that purpose.-

This downward motion of the weighted end of the lever K draws back the arm 1', soas to release the load, and, at the same time, the hook L catches on a pin, m, in the carriage, holding the same at that end of the beam.

The load can then be allowed to descend to the place where wanted, when the fork. or bucket is again drawn up, so that the loop or bail h will strike, and raise the lever K, iu-the same manner as above described.

A shoulder, a, on-said lever at the same time releases the hook L from the pin m, and the weight G will draw the carriage back again to the starting point.

Near the transverse bar 0, on-the under side of the beam B, is a beveled bar, M, which strikes the weighted end of the lever K, releasing the arm 5 from the loop 71-, to allow the fork or bucket to descend, and, at the same time, let the angle of the lever projectinto the notch It.

For elevating 'hay, grain, and such articles, any

suitable hay-fork maybe used; but, for lime, brick, .or such articles,- a tub or bucket, constructed in the following manner, is used.

N represents the bucket, having inclined ends, so

that it is wider at the top than at the bottom. I In the center of the sides, near the bottom, are pivoted arms, 0 O, which are connected above the bucket by a cross-bar, I.

In a mortise on one of the arms 0 is pivoted a dog or pawl, p, which is forced into a notch in the edge of the side of the bueket'by a spring, r, as shown in fig.

1, said dog being withdrawn when desired. by thetripq'ope S, causing the bucket to trip over, and

empty the load. the cross-bar I.

" Having thus fully described our invention.

What we claim as new, and desire to secure by Let-' ters Patent, is-- 1. In combination with the lever K and arm '5, the

The pulley-block H is hooked to beveled bar M, and notch k, substantially as end for v the purposes herein set forth.

2. In combination with the lever K, with its shoul der n and arm z, the hook L, and pin m, substantially as and for the purposes herein set forth.

3. The OOIl'lbll'ltlt'iOll of the beam B, with its arms E and I, and latch L, with the carriage A, with weighted lever K, arm. 45, opening D, beveled bar M, and pulley. H, with bail h, all being constructed and operated substantially as set forth.

In testimony that we claim the foregoing, we ha e hereunto set our hands, this 7 th day of March, 1870, ABRAHAM THOMAS.

GEORGE D. THOMAS,

Witnesses:

LOGAN KENNEDY, W. H. SELLER.

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