US357185A - Reinhold p - Google Patents

Description

(No Moa-@1.) j A f R. F. DE GRAIN. `HOISTING AND SUPBRTING DEVICE. N0.` 357,185. Patented Feb, 1887'.

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5o plate A.

. UNITED STATES PATENT OEEICE.

REINHOLD F. DE GRAIN, OF VASHINGTON, DISTRICT OF COLUMBIAf HOISTING AND SUPPORTING DEVICE..

SPECIFICATION forming part of Letters Patent No. 357,185pdated February 8, 1867.

Application filed November 3, 1886. Serial No. 217,868.' (No model.)

io hook to be used for the raising of a permanently-ixed step-ladder and securing the same against the ceiling, reference being had to the accompanying drawings, in which- Figure l is a side view of the complete com- 15 bination; Fig. 2, a rear view as it appears fastened to the ceiling; Fig. 3, a view of the bottom of the plate; Fig. 4f,V a vertical section of plate on the line u o on Fig. 3; Figs. 5 and 6, the front and side views of hooksupport5 y z on Fig. 5; Fig. 8, the front and side views of catch-hook; Fig. 9, the front and side views of spring; Fig. l0, the front and side views of pulley-frame; Fig. 11, the pulley; Fig. 12, the small outside pulley; and Figs; 13 and 14, the bolts through pulley-frame and hook-sup port, respectively. i

Similar letters refer to similar parts throughout the several views.

The plate A constitutes the support of the combination, and is so constructed that the heavy part of it will support and brace the weaker part,on which the weight of the stepladder is suspended, when it is being lowered or raised. Two holes, c and d, are drilled through plate, the upper half, b, of hole c to be enlarged, as shown in Fig. et'. To prevent the plate from turning, two small points, aa, on the upper side and heavy part of plate have been introduced, which enter the ceiling.

The squares shown in broken lines in the plate A indicate the position in which the pulleyframe and catch-hook support will be after they have been fastened to said plate. The screw e-a part of the pulley-frame Bis inserted linto the hole c in plate A, and a screw-nut, f, placed on the screw e from the upper side of the plate and tightened. This screw does not extend to the upper edge of The pulley -frame -being securely Fig. 7, a section of hook-support onlthev line' fastened, the pulley E is put in and the bolt I run through holes g y, from right to left, which will leave space for the small outside pulley, F. This is then put on, and a screw nut will hold it in its place. A guard of bent Wire, g', is placed in such a position as will prevent the cord from slipping off the pulley. The hook-support C holds the catch-hook D, a bolt, H, running through both for that purpose. A spring, G, fastened by a screw,v K, is attached to the hook-support on the upper part, and rear side of same. This spring presses onthe catch-hook and keeps the same in its original position. The hook, not being allowed to move at will, is kept with its highest point, s, pressed against an inside shoulder of the hook-support at the place marked a. The hook support has a screw, p, which, after a leather washer, w, or washer of flexible material is stripped on, passes through the smooth hole d in plate A, and through the ceiling into a joist, which is to be selected for the purpose ofholding the arrangement.

In using the above-named combination a cord is fastened to the catch-hook, a hole, fi, being made for that purpose, running over the small outside pulley, F, the cord reaching down to aboutsix feet from the hoor, and on which a tassel may be fastened. Then a rope sufficiently strong is passed over the pulley E, and the one end fastened to aniron rod, E,

attached to the step-laddder, the other end hanging down loose. This rod must be placed in such a position that while being raised it will strike the catch-hook at or near the place marked t. By further pulling the rope the catch-hook moves to the right and allows the rod to pass the point q. No more strain being on the hook, the spring Gr will bring itloack to its original position. By letting the rope go the rod, which forms'part of the step-laddenwill be caught by the hook and rest securel y at m. When so at rest, the step-ladder will be one-half inch below the ceiling. In lowering, pull the yrope until the step-ladder reaches the ceiling, thus getting the rod above the point q of the catch-hook. Take hold of the cord with the other hand, pull it, and the hook moves to the right. Then let the step-ladder go down until the iron rod has passed the hook. Leb gothecord, support C, spring G, pulley, and pul1ey-frame, and both hands meat liberty to manage the all substantially as set forth.

ro e on which the step1adder hangs. T Vhab Ielaim, and desire toseeureby Letters REINHOLD F' DE GRAD Patent, is- Witnesses:

The described hoisting and supporting de- R. D. MESTON, vice, comprising the plate A, the hook D, its BORT. XV. SCIYIQLL..

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