US86932A - Improvement in brick-elevator - Google Patents

Description

n. Farms. Pu dmosuvasn was naToN u tlnitcd tats www lTHOMAS MANN, OF SAN F-RANCI (lated February '16, 1869 g mitcdatrll February 1, 1869.

Letters Patent No. 86,932,

sco, CALIFORNIA.

IMPRGVEMENT IN' BRICK-ELEVATOR.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern.-

Be it known that I, 'lHoiiAs MANN, of the city and county of San Francisco, State of California, have iuvented an Improved Machine for Hoisting Brick and Mortar for building-purposes; and I do hereby declare the following description and accompzmying drawings are sufficient to en. ble any person skilled in the art or science to which it most lnearly use my said invention or improvements without further invention or experiment.

lhe nature of my invention is to provide an improved device for hoisting brick and mortar for building-purposes, and is intended to be employed after the rst, or lowerstory has been constructed.

My invention consists of a frame, having vertical posts, or-ways, on 'which gates slide up and down. The gates are construct-ed so as to allow of mortal' and brick-hods being hung upon them, and, while one gate is ascending on one side with loaded hods, the opposite gate is descending with empty hods, by means of cords connected to the gates, passing over a sheave, or pulley, at 'the top of the frame.

For hoisting, two cords are also connected' to the bottom of the gates, passing overpnlleys, and attached to the ends of a brake, which slides back and forth upon a horizontal frame.

To more fully illustrate and describe my invent-ion, reference is had to the accompanying drawings, and the letters marked thereon, of which- 'Figure 1 is a side sectional elevation of my apparatus.

Figure 2 is machine.

A A represent the braced, which may be anchored to the joists or trimmers of the building.

In the centre of the frame are upright posts, or ways, B B B B, upon which slide the gates() C, which are a view of a hod, arranged for use in the held to the ways by projecting plates D D D D, ad-

mitting of an easy up-and-down movement, without much friction.

The gates are provided with suitable cross-rods, E E, for hanging the 'hods upon.

A vertical rod, F, passes through each gate, having eyes at each end, and to the upper of which a cord or rope, G, is attached, passing over a pulley, H, at the top of the frame.

Anchoredfto the ground, or lower appertains, to make and which is well braced, r

frame of my machine, suitably floor of the buildl mg 1s a trame,

eyes ot' the vertical gate-rods are attached cords, 'K K', the cord K operating on the pulley J, and passing through a block, L, and connected to 'one end ofa brake.

The cord or rope K', movesin the sheavc J and is attached to the opposite end of the brake M.

' The brake M is moved along the cxtcirsion-frame N, forward and back, b v the cords, by means of horse-power, or otherwise, lthe cord K passing through the opposite end of the sweep O.

' A slot, P, is made in the brake, to allow the sweep to act freely, and when the gates are raised or lowered, they are held in position, by the driver, by a strap, or holder, by means of a curved rod attached to each side of the opening in the brake, which admits of the holder or strap being carried or changed from end to end, beneath the sweep, to assist in holding the gates in position while the horse is changing his direction of travel.

vThe hods S, S are of the ordinary construction, and are provided with hooks, S' S', and placed along the cross-rods ofthe gate to the desired number, the handles resting against the rods beneath, and while the loaded hods are being hoisted upon the gate, the empty one-s are passing down the other, while laborers are stationed at the top, to discharge the hods and place them upon the descending gate. By this means, I have a machine thatwill save much hard manual labor.-

Having thus described my invention,

' That I claim, and desire to secure byv Letters Patent, is-

1. The gates C O, sliding ou the ways B B B B, operated by the' ropes or cords G K K', and pulleys-and blocks l J J' L, substantially as and for the purpose set forth.

may hohl the gates in position while the horse is changing his direction of travel, substantially as described.

3. The hooks S S', for attaching the hods to the J No. LfBooNn, GEO. H. STRONG.

J, which has two 'pulleys, or sheave-` blocks, J J', stationed near eachother, and to the lower' V2. The pecular construction ofthe brake M with thel sweep4 O, operating in the slot P, so that. the driver

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