US929870A - Elevator. - Google Patents

Description

Q A. c. NEWTON.

ELEVATOR. APPLICATION FILED MAY 9, 1908.

Patented Aug. 3, 1909.

2 SHEETS-SHEET l A. 0. NEWTON.

ELEVATOR.

APPLICATION FILED MAY 9, 1908.,

Patented Aug. 3, 1909.

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To (iii whom it may concern:

1, ANDREW C. Nnwron, a citizen of the United States, and a resiof (arescent, Elaratoga county, New ork, have invented a new and useful improvement in Elevators, of which the following is a specification.

y invention relates generally to elevators, and particularly, in some of its features. to portable elevators, such can be ea ily knocked down and moved from place to pla object is to provide a con *enient, durable and efficient elevator, wlich can be partially dismantled, and easily moved.

l urth r objects of the invention will appear in the specification and be pointed out in the claims.

in the particular embodiment of my invention which l. have chosen for illustration, which form is capable of variation within wide limits, Figure 1 is a front, and Fig. 2 a side elevation of the elevator, certain details being omitted for clearness of illustration; 3 is a side elevation of the elevator partly dismantled and ready for transportation; Fig. 1 is an elevation and Fig. 5, a plan of a portion of the elevator frame, showing a truck wheel; Figs. (3 and 7 are front and side elevations respectively of a portion of the car or jumper; Fig. 8 is an end view. and Fig. 9, a vertical section of a modified form of hoisting drum.

In the drawings, 11 designates a main frame, shown as of rectangular form and comprising sills 12, posts 13, lintels 14 and cross-braces 15, 16, 17. At each side of the frame 11 is a swing-frame supporting portion, shown as a middle post 18, to which is pivoted at one of the uprights of a swing-frame, the uprights being connected by a top cross-piece 21, on which is mounted a drum and two idlers 23, 24:. Sliding between and guided by the upright posts 20 is a car consisting of a platform 2, uprights 27 and lintel 28. From a hook 29 111 the lintel 28 a rope, chain or the like, 30, makes one ormore turns around the drum 22 and passes downward to a pawl-drum 31 mounted on a weight box This counterpoise box 32 is shown as sliding on two slightly inclined braces 33, which are detachably engaged at their upper ends to the cross-piece 21. The box 32 is shown as a vertically disposed tray, having a cover 31%. secured on its face by hooks 35, its depth Specification of Letters ?Patent.

Patented Aug. 3, 1909.

Serial No. 431,834.

ing preferably such as to permit bricks to be piled lengthwise therein. The pawl-drum 31 permits the effective shortening of the rope 30, so that the car ma be stopped at different hei hts, with the box 32 resting on the ground or platform. For this purpose the shaft 36 of the drum 3]. is squared for the attachment of a wrench or key, to wind the rope 3O thereon.

To guide the car in its vertical movement and at the same time to make it dexichable from the swing-frame, I provide devices shown in 6 and 7. i-it each side of the car two plates 37 are secured to the platform 26, on which are pivoted guide bars 38, carrying at their free ends friction wheels which travel one at each side of the upright 20, the bars 38 being held in their outturned position by pivoted lugs 40, which may be swung inward to permit the bars 38 to also swing inward, see dotted lines, Fig. 6. At the upper end of each upright 27 are similar friction guide wheels 41, mounted at the ends of bars 42, pivoted on the lintel 28 and secured together by a yoke 43, which passes over the top of the lintel, so that the device can be swung upward, see dotted lines, Fig. 7.

it will be seen that the main frame 11 is provided at each corner with a downwardly projecting spur id to in the ground or platform on which the elevator stand For convenience of moving it, the devices of Figs. at and 5 may be employed. To each outer face of each post 13 is bolted a flanged bar 15, which hold in place, but permit the vertical movement of, 3. bars 1-. From the lower end of each bar e6 projects a horizontal lug d7, the outer corner of which is recessed at d8. ll ithin this recess l8 is pivoted an inverted L shaped caster holder L9. the lower end of which is bifurcated to hold a caster wheel 50. The upper horizontal member of the part 49 is formed with laterally projecting lugs 51, and the part at? is pierced with two holes 52, see Fig. 5, in either of which a pin 53 may be placed, so that the holder e9 may be secured in either of two positions, 2'. 6., with the caster parallel with either adjacent sill 12 of the frame 11. At the upper end of the 5. bar 46 is a lug 5 1, against which bears a cam 55 pivoted at 56 and having a socket 57 for the reception of a hand lever 58.

Referring again to Figs. 1 and 2 of the drawings, I will describe a convenient means for maintaining the swing-frame in its operative position, which means also serves an additional purpose. To the outer side of each upright is detachably secured a brace comprising a footing resting on the lintel 141- of the n'iain-frame and of greater width than the lintel, so as to extend laterally therebeyond. From the footing rises an iron trough-bar 60, which embraces the upright 20 and is secured thereto by pins or bolts (ll, beino' held in vertical relation with the foot ing oil by rods The hoisting engine 63, conventionally in dicated in i 2, may be of the usual form, mounted for convenience of trai'isportation on a truck .542. i prefer, however, to mount the drum 65 and the pinion 66 on a bracket 67 bolted to the mam-frame 1, and to provide any convenient means, not shown, for securing the engine 63 to the frame with its main Wheel (58 meshing with the pinion 66. From the drum (35 a rope or cable 69 passes over the idler 24c and is wound around the drum 22 at the top of the swing-frame.

The operation of the device is as follows: The form of elevator shown is particularly adapted for use in a brick-yard, both for raising the unburned brick to fill a kiln, and for loading the finished brick into a boat or the like. The parts being assembled as shown in Figs. 1 and 2, it is evident that a barrow of bricks may be wheeled on to the car and hoisted to any desired height. It is also obvious that by winding up the rope 80 on the pawl-drum 31, the counterpoise 32 may be broughtto rest on the ground or platform with the car or jumper at any desired height, 6. with its floor 26 on a level with the bench of a scaffold, not shown, of convenient height. When it is desired to move the elevator along the kiln, or to remove it therefrom, the car is lowered to rest on the bottom of the elevator frame, the rope 30 is unhooked from the book 29 and unwound from the drum 22, when the box 32 may be set aside, and the braces 33 detached from the cross-piece 21. The guidewheels 39 and ll are then thrown to the positions shown in dotted lines, F 6 and 7, and the car 25 moved forwardly out of the frame 11. The hoisting engine (33 is then unhooked from the frame and moved aside. The pins 61 being then withdrawn, the braces 59 (30 are laterally removed, when the swing-frame may be tilted to the approximately horizontal position shown in Fig. 3, the brace boards 15 serving as stops to limit its downward movement. Either before or after tilting the swing frame, the casters may be forced downward by means of the cams as shown in Fig. l. when the dismantled frames may be readily wheeled to any desired. position. It will be seen that by reason of the weight of the mainframe, and of the pivoting of of said pairs of posts ezaero the swing-frame at a substantial distance from the lower ends of the uprights 20, 6., from the sills 12 of the main-frame, whereby the ends of the uprights 20 extend laterally beyond the main-frame at each side thereof; the entire elevator, in its movable position, is substantially balanced. Clearly the reerection of the device is a mere reversal of the operat on just described.

iVlRll it is desired to use the elevator for lowering bricks or ot er articles into the hold of a boat or like vessel, it is supported by the brace-footi 59 resting on the hatch conbinp' or on timbers whose ends rest on the thr LS of the vessel, so that the mainframe 11 is within the hold.

in. 8 and 9 l have shown a new form of speedchanging hoistingdrum, which n'ry oe used in place of the drum 22, or wherever such a device desirable. The drum '70 is made in two parts, on one of which the rope or cable passing to the car is wound. On the other part is wound the rope ich extends to the hoisting engine. One of these parts is made expansible, so that the diametric relation of the two may be varied. '1 the present instance, the part 71 has tn o dishs T2 secured to the shaft 73, and cacl ormed with concentric annular flanges series of spokes (5, each pair of spokes carrying near their free ends a drum segment 7?. The spokes are radially adjustable and may be secured in desired position by means of set-screws 78 in the flange '45, see dotted lines, Fig. 8. The projecting ends of the spokes To serve as side guards for the rope or able wound on the drum, the effective diameter of which, as will be clearly seen, can he considerably varied.

I do not wish my invention to be consid ered as limited to the forms of construction, or the combinations of parts, herein described, as both are var'able within wide limits.

lVhat l clain'i is:

1. An elevator including a main-frame comprising sills, vertical corner posts, linteus connecting opposite pairs of said posts and supporting portions between said pairs of posts; a swing-frsnue including two uprights each pivotally mounted between one at a sabstai'itial disiid uprights;

tance from the lower end of and a. car mo whereby said swing-frame may be lowered to an approximately horizontal position with its uprights extending laterally on each side of main-frame, substantially for the purposes set forth.

2. An elevator including a mainframe comprising sills, vertical corner posts. lintels connecting opposite pairs of said posts.

and supporting portions between said pairs of posts; a swing-frame lncluding two upil 'l, '5, through which pass a.

able in s: id swing-frame;

rights each pivotally mounted bet-ween one of said pairs of posts at a substantial distance from the lower end of said uprights; and a car movable in said "mg-frame and detachable therefrom; whereby said swingframe may be lowered to an approximately horizontal position with its upfights extending laterally on each side of said mainframe, substantially for the purporses forth.

3. An elevator including a main-frame coiprising sills, vertical corner posts, lintels connecting opposite pairs of said posts and supportin portions en said pairs of posts; swing-frame including two upits each pivotally mounted on said supporting portion at a substantial distance from their lower ends; and stop on said main-frai'ne to limit the pivotal movement of said swing-frame; whereby said swingfr no r ay be lowered to an approximately horizontal position with its uprights extending laterally on each side of said mainframe, substantially for the purposes set forth.

4. An elevator including a main-frame comprising sills, vertical corner posts, lintels connecting opposite pairs of said posts and supporting portions between said pairs of posts; a swing-frame including two uprights each pivotally mounted on said supporting portion at a substantial distance from their lower ends; and a brace portion resting on said lintels and detachably secured to said swing-frame for securing the latter in its operative position, substantially for the purposes set forth.

5. An elevator including a main frame; a swing-frame pivotally mounted in said main frame; a car vertically movable in said swing-frame; a counterpoise for said car; and braces extending downwardly from said swing-frame and serving as guides for said counter-poise, substantially for the purposes set forth.

6. An elevator including a main frame, a swing-f 'ame pivotally mounted in said main frame; a car vertically movable in said swing-frame; a counterpoise for said car;

and braces extending downwardly and outwardly from the top of said swing-frame and serving as guides for said coimterpoise. substantially for the purposes set forth.

7. An elevator including a main-frame; a swing-frame pivotally mounted in said main-frame; a rope-winding drum at the top of said swing-frame; a second drum at the side of said main-frame; a rope or cable connecting said drum: a hoisting engine; and cotiperatinp; means on said main-frame and said hoisting engine for securing the latter in operative connection with said second drum, substantially for the purposes set forth.

8. In an elevator, a main frame; a swingframc pivotally mounted in said main frame and including a pair of upright posts; a car or width less than the distance between id posts and vertically movable therebeveen; and guides on said car and oaeratively extending thercbeyond for engagent with opposite sides of said posts, said bein iii" vable out tieir operative position for permitting the removal of said car horizontally from between said posts, subs iiitialiy for the purposes set forth.

9. in an elevator, a main fran'ie; a swingframe pivo' 'ly mounted in said main frame and including a pair of upright posts; a car of a width less than the distance between said posts and vertically movable therebeteen; and guides including friction wheels on said our and operatively extendin therebeyond for engagement with said posts, said guides beii movable from their operative position for permitting the removal of said car horizontally from between said posts, substantially for the purposes set forth.

10. In an elevator, a main frame; a swingframe pivotally mounted in said main frame and including a pair of upright posts; a car of a width less than the distance between said posts and vertically movable therebetween; a guide on said our comprising a bar pivotally mounted thereon and operatively extending therebeyond and a friction wheel at the free end of said bar; and means for holding said bar in operative position and for permitting its removal from such operative position, whereby said car may be horizontally removed from between said posts, substantially for the purposes set forth.

11. En an elevator, a main f tune; a swingframe pivotally mounted in said main frame and including a pair of upright posts; a car of less width than the distance between said posts and vertically movable therebetween; plates secured to the floor of said car; a bar pivoted to each of said plates and operatively extending beyond the side of the car; a friction wheel at the free end of said bar; and means on said car for detachably hold iug said bar in operative position, whereby said car may be horizontally removed from between said posts, substantially for the purposes set forth.

12. In an elevator, upright posts; a car vertically movable between said posts; a pair of bars one of which is pivoted at each side of the frame of said car adjacent its upper end and projects beyond the side of the car; a friction wheel at the free end of each of said bars; and a yoke connecting said bars and extending over the top of the car frame for maintaining said wheels in their operative position, substantially for the purposes set forth.

13. In a portable elevator, a main frame; and a vertically adjustable caster at each lower corner of said frame, said caster comprising an angle bar embracing said corner and secured except against vertical movement, a horizontally recessed lug on said bar, a T headed caster holder pivoted in saic recess, said lug being provided with two vertical holes for receiving a pin for engaging a lateral arm of said holder, and a caster Wheel in said holder substantially for the purposes set forth.

14. in a portable elevator, a main frame; a vertically adjustable caster at each lo ver corner of said frame, said caster comprising an angle bar embracing said corner and secured except against vertical nun'enient a horizontally recessed big on said bar, a T headed caster holder pivoted in said recess, said lug being provided with two vertical holes for receiving a pin for engaging lateral arm of said holder and a caster Wheel in said holder; and a earn pivoted on said frame for forcing said caster downward into operative position, substantially for the purposes set forth.

1:"). An elevator including a main-frame comprising sills, vertical corner posts, lintels connecting opposite pairs of said posts and supporting portions between said pairs of posts; a swing-frame including two uprights each pivotally mounted on one of said supgorti portions at a substantial dis tance from eir lower ends; and two brace ch detachablv secured to one of uts and provided with footing on and extending laterally beyond one of said lintcls, substantially for the purposes set forth.

16. A portable elevator including sills vertical corne posts, lintels connecting opposite pairs of said posts, uprights mounted between said pairs of posts and extending above said lintels, a car vertically movable between said u rights a rope-Winding druin at he top of said uprights, a second drum secured one of said pairs of posts, and a rope or cable connecting said drums; in combination with a hoisting engine for rotating said second drain, and means for inaintainl or and said engine in operative relation substantially for the purposes set forth.

ANDREYV C. NEWTON.

Vitnesses v Geo. L. Coornn,

B. M. ToLHURsT.

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