|Publication number||US530389 A|
|Publication date||Dec 4, 1894|
|Filing date||May 5, 1894|
|Publication number||US 530389 A, US 530389A, US-A-530389, US530389 A, US530389A|
|Inventors||Sewell A. Brooks|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (9), Classifications (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
' (No Model.) S. A BROOKS. 2 Shgets-heet 1;
PAINTERS SGAFPOLD. No. 530,389. Patented Dec. 4, 1394.
Attorney- (No Model.)
I 2 Sheets-Sheet 2. S. A. BROOKS. PAINTERS SGAFFOLD.
Patented Dec. 4, 1894.
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SPECIFICATION forming part of Letters Patent No. 530,389, dated December 4, 1894.
Application filed May 5,1894.
So all whom, it may concern:
Be it known that I, SEWELL A. BROOKS, a citizen of the United States, residing at Strykersville, in the county of Wyoming and State of New York, have invented certain new and useful Improvements .in Painters scaffolds; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to figures of reference marked thereon, which form a part of this specification.
My invention relates to that class of apparatus which is specially designed to facilitate the painting of the outside walls of houses or buildings and consists of an extensible scafiold or frame-work of knockdown character adapted to be easily shifted and held in any location and provided with a platform vertically adjustable within such framework,
the platform having attachedthereto means for carrying the paint reservoir, upon which such reservoir is adjustable, as to position, both horizontally and vertically.
My invention consists further in other details of construction which will be more fully hereinafter set forth.
In the drawings, Figure 1 is a front elevation of my improved apparatus. Fig. 2 is a side elevation of the same, and Figs. 3, 4, and are detached detail views.
Referring to the drawings, 1, 1 are the end sections preferably consisting of ladders which may be of one or more lengths and if of more than one, their ends may be joined by the channeled plates 2 secured thereto by the bolts 3 which pass through the holes 4 and the side pieces 7 of the ladder.
5 is the cross-beam removably secured between the upper ends of the end sections 1, 1 by means of clamps composed of the twin jaws 6, 6, their inner ends being bolted to opposite sides of the cross-beam 5 and their outer free ends being adapted to embrace the side pieces 7, 7 of the end sections and be tightly clamped thereon by the bolt 8 and nut 9 the lever 10 being employed to turn the bolt 8 into tight engagement with the nut. The cross-beam 5, by means of the above clamps or any well known adjustable connection can thus always Serial No. 510,161- (No model.)
be secured in a horizontal position while the. end sections 1,1, retain a vertical position, for when one end section stands on ahighe'r level than the other (as when erected against a building located on an inclined plane) the cross-beam can be secured to that end section at a different relative position from what it is secured to the other end section. The diagonal braces 20, and tie rails 17, being also adjustable, the scafiold can readily be erected on any irregular or inclined surface.
The lowerend 0f the sections 1, 1, are united rigidly by the cross-beam l1 and are provided with the casters or wheels 12 having the screw-threaded shanks 13 engaging with the sockets 14 and 15 for the sake of rigidity.
This permits the wheels 12 to be turned in any direction to facilitate the moving of the frame work or to be raised and lowered as desired in connection with the rigid sidespurs 16, as when raised, they permit the spurs 16 to sink into the ground and form asolid bearingfor the frame-work and when lowered below the engaging ends of the spurs they hold such ends free of contact with the ground to permit the frame-work to be shifted in position upon its wheels or casters.
In order to hold the frame-work securely in its upright position I have provided the siderails 17, (see Fig. 2) removably secured at their inner ends to the end sections 1 by bolts. 18 and 19 are wheels or casters secured near their outer ends to assist in moving the framework.
20 are diagonal braces having their upper endsyadj ustably secured by bolts 21 to the end sections 1 and their lower ends similarly secured to the outer ends of the side-rails 17 by bolts 22. The lower ends 23 of these diagonal braces are pointed and adapted for engagement with the ground, in which event they are so adjusted upon the frame-work as to raise the wheels 19 from the ground as clearly shown in Fig. 2. When it is necessary to shift the frame-work, the diagonal braces 20 are loosened at their lower ends to permit the wheels 19 to drop into contact with the ground. Tie-strips 24 securedby bolts 25 to the diagonal braces 20 serve to prevent the side-rails 17 from spreading.
26 is a vertically adjustable platform upon which the workman stands while painting.
At one side is secured the rope or cable 27 which passes up around the pulley 28 secured to the upper cross-beam 5, then around the pulleys 29 and 30 and up to one side of the drum 31 journaled in the frame 32. At the other side of the platform is secured the rope or cable 33 which passes up around the pulley 34 in the upper cross-beam 5, then around the pulleys 35 and 36 and up to the opposite side of the drum 31. This drum has the cranks 37 on either side for manipulating the cords 27 and 33 in raising and lowering the platform.
The frame 32 carrying the drum is secured to a guard 38 which is hinged to the back edge of the platform 26 or the edge farthest from the wall of the building being painted.
39, 39, are end guards hinged to the end edges of the platform 26 and provided with central slides 40 which ride up and down upon the end sections 1, 1 of the frame-work and serve to prevent the platform 26 from tilting. Centrally pivoted upon the lower outside edges of the side guards 39 are the rods 41 in the upper ends of which is secured the rail 42. The rods 41 are held at any desired angle by clamps 43. A wheel 44 is arranged to travel back and forth upon the rod 42 and to the hanger 45 journaled in the wheel 44 is secured the pulley 46 around which is passed the cord 47 to one end of which is secured the paint reservoir 48 and to the other end the counterweight 49.
It will readily be seen that with my improved construction the painting of a house is greatly facilitated as the painter can raise and lower himself at will while upon the platform by operating the Windlass to which the suspending cords are attached and at the same time the position of the paint reservoir can be quickly adjusted horizontally upon the rail 42 and vertically upon the pulley 46.
' Then too the frame-work and its operative 1. The herein described scaffold consisting of a supporting frame with adjustable carrying wheels at base of said frame, a vertically adjustable platform, having guards at the back and ends, a vertically adjustable horizontal way or track mounted on said platform a wheel running on said Way and a pulley connected with said wheel.
2. In a portable scaffold having a vertically adjustable platform, a supporting frame consisting of the single vertical end sections 1, the upper single connecting cross-beam 5, the lower single connecting cross-beam 11, the tie-rails 17, the diagonal braces 20 adjustably connecting the vertical end-sections 1 with the tie-rails 17, the wheels 12 mounted upon the main frame and the wheels 19 mounted upon the tie-rods 17 substantially as described.
3. In a painters scaffold the combination with a supporting frame having adjustable supports of a vertically adjustable platform having guards at its back and end edges. a vertically adjustable horizontal rod, a wheel running on said rod a pulley connected with said wheel and a cord passing over said pulley and carrying a paint reservoir and counterweight.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
SEWELL A. BROOKS.
MERRITT H. JACKSON, W. T. MILLER.
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