US387512A - Portable elevator - Google Patents

Description

(No Model.)

J. T. HAINES.

PORTABLE ELEVATOR. No. 387,512. Patented Aug. 7-, 1888.

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UNHE TATES JOSEPH T. HAINES, OF BALBEO, INDIANA.

PORTABLE ELEyATO R.

SPECIFICATION forming part of Letters Patent No. 387,512, dated August '7, 1888.

Application filed February 16, 1888. Serial No. 264,295.

To all whom, it may concern.-

Be it known that I, Josnrrr T. HAINES, of Balbec, in the county of Jay and State of Indiana, have invented certain new and useful Improvements in Portable Elevators; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification, in which Figure 1 is a broken front view of my elevator. Fig. 2 is a side view of the same. Fig. 3 is a crossseetion of the same in the line of u shaft H.

ject is to provide a simple and easily constructed and operated elevator, as will be fully understood from the following description, taken in connection with the accompanying drawings, and particularly pointed out in the appended claims.

Referring by letter to the drawings, A A designate two vertical parallel standards which are rigidly braced together, and a a are boards secured between standards A A at front and rear,forming aboxingin which plays a weight, at, hereinafter referred to.

B B designate guide-rails secured to the outer opposite edges of standards A A, which also serve as tracks for the elevatorcarriage.

0 designates the carriage, composed of side bars, 0 c, and connecting end bars, D D, rig- To the lower ends of bars 0 c are secured the angular clips d d, which embrace and engage the inner face of rails B B, to prevent the carriage lifting or swinging off said rails, and b b designate frictioirrollersmounted in the clips (I d and in the side bars, a c.

E E are clips or arms secured to the upper ends of side bars, 0 c, and carrying on their inner ends the rollers e e, which engage the inner face of rails B B and prevent the carriage disengaging therefrom.

F F are straps or bars on bars 0 0, below arms E, upon which are loosely mounted by staplesffbrake-blocks G G. One of these blocks is pivotally connected by a link, g, with the crank-arm h of a shaft, H, journaled transversely in bars 0 c of the carriage, and having its opposite end cranked and similarly (No model.)

connected with the other brake-block, so that when arm h is properly actuated both brake blocks will be caused to bind track-rails B B or disengage therefrom, as is evident.

I indicates a drum mounted on a shaft, i,

journaled in bars 0 c, and having crank-ham dles at its ends, as shown. J designates a ratchet-wheel on this shaft or drum I, which is engaged by a dog,j, on adjoining bar 0 for locking the drum in any position.

K is the platform of the carriage, which is hinged upon side bars, a c, at its inner corners by proper straps, and 7c are brace-supporting rods pivoted at one end to bars 0 c, and loosely engaged with the outer corners of platform K, so that they can be disengaged therefrom and the platform folded against the framework of the carriage.

L Z represent transverse rods secured between bars 0 c, the former at bottom and in position to engage with a catch, M, when the carriage is lowered, and keep the carriage down until the catch is disengaged. Upon rod Z may be hung removable weights for balancing the carriage.

N is a grooved pulley mounted on a shaft fixed at the upper end ofstandards A A, and over this pulley passes a rope, it, one end of which is secured to the upper crossbar of the carriage, and the other end is attached to a weight, m, which weight is sufficiently heavy to balance the carriage, or somewhat overbalance it, so that it can be run up and down on its track without much effort of the operator. The weights on red Z may be employed to counterbalance the weight m.

0 is a rope secured at one end to a stirrup, 0, hung between the upper ends of standards A, below the pulley N, and the other end of rope O is attached to drum I, so that by rotating said drum the rope is wound and the elevator-carriage raised. The elevator-carriage can be stopped and held at any point of its movement by means of the brake mechanism described, or by the use of the ratchet and dog on the drunrshaft.

It will be observed that the entire device can be constructed and transported from place to place, rendering it especially useful as a builders portable elevator, or it can be built permanently in any position desired. In use the operator stands upon the platform and by rotating drum I winds rope O and causes the elevator-carriage to ascend. iVhen the elevator is to be portable, the standards A and traclorails B may be constructed in interlocking sections, so that they can be readily taken apart for transportation.

Having described my invention, what I claim is- 1. The elevator comprising the vertical guide-rails, the carriage G, mounted on said rails and having a hinged platform, K, supporting-rods therefor, the rope, drum, and eqnipoisirig-weight on rope 71, and pulley N, and the brake mechanism engaging the guiderails and adapted to stop and hold the carriage, all constructed and arranged substantially in the manner and or the purpose described.

2. The combination of the guide-rails and the elevatorcarriage with the cranked rod H, the arm is, the mo able brakebloeks G G, and

the links g g, respectively, connecting said blocks with arm h and the cranked end of shaft H, all constructed and arranged substantially as and for the purpose described.

8. Theherein-described elevator, eomprising the guide track-rails, the carriage provided with friction-rollers, and clips mounted on said guides, the drum I, its cranked shaft, rope O, and the brake-blocks G G, cranked shat't II, arm it, and links 1/ 1 connecting blocks G respectively with the cranked end of shaft H and arm It, all constructed and an ranged substantially in the manner and for the purpose described.

In testimony that Iclaim the foregoing as my own I ailix my signature in presence of two witnesses.

JOSEPH T. HAYNES.

Wi tnesses:

LINDLEY N. Rm 0 [cm-11m n, Gno. E. G new as.

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