US1347958A - Stilt - Google Patents

Description

R. J. LYNCH.

STILT.

APPLICATION FILED MAR. 27. 1920.

1,347,958. v PatentedJuly'27, 1920.

WITNESSES wm mfwy A TTORNE YS pensive V to manufacture,

ROBERT JAMES LYNCH, or TAMAQUA, PENNSYLVANIA. f

STILT.

Specification of Letters Patent. :Patent ed July 27, 1920.

Application filed March 27, 1920. Serial No. 369,318.

To all whom it may concern:

Be it known that I, ROBERT J. LYNCH, a citizen of the United States, and a resident of Tamaqua, in the county of Schuylkill and State of Pennsylvania, have invented certain new and useful Improvements in Stilts, of which the following isa specification.

My invention relates to an improvement in adjustable stilts, and has particular reference to such as comprise a step adapted to be associatedwith a standard in such manner as to permit the ready vertical adjustment thereon and its positive securement in its ad-.

justed position.

An important object of the invention is to provide a step or foot support stamped or cut from apiece of sheet metal.

A further object of the invention is to provide a device of theabove mentioned character, which is simple in construction, inexconvenient in use, and strong and'durable.

In the accompanying drawings forming a part of this specification, and in which like numerals are employed to designate like parts throughout the same,

Figure l is a perspective view of a stiltembodying my invention,

Fig. 2 i an enlargedperspective view of the foot support, 1

Fig. 3 is a horizontal sectional view on the line 3-3 of Fig. 1,

Fig. 4 is an enlarged sectional view on the line 4-4 of Fig. 3, and,

Fig. 5 is a view showing the blank from which the foot support is formed.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention, a standard 1, preferably rectangular in cross section, is provided on one of its outer faceswith a plurality of equally spaced transverse recesses 2, which enter the standard on an incline, bringing the bottom of the recesses somewhat below the lower edge of the openings when the standard is in a vertical position as shown in Fig. 1.

Adjustably connected with the standard 1 and slidably mounted thereon, is the step or foot support 3 which is preferably formed of a single piece of sheet metal. In the production of this improved step, or stamped from a sheet of metal in substantially the form shown in Fig. 5. This blank comprises a central portion 4, having at its opposite ends the axial extensions 5 and 6,

a blank is cut and at the opposite sides thereof, the side wings 7 which are provided along-that portion of their upper edges which are oppositely inclined with respect to the longitudinal axis of the central portion 4:, with the flanges 8 which have interlockingly engageable connecting means preferably in the.

form of a bendable tongue 9 and slot 10. Near the upper end of the side wings 7, at a distance from the flanges 8 slightly greater than the horizontal depth of the standard to which the ste is to be applied, are the holes 11. I

In forming the step from the blank above described, the ide wings 7 are bent on the dotted lines (Fig. 5) toward each other and at right angles to the central portion 4. The inturne'd meeting flanges 8- are bent inwardly at right angles to the side wings 7 and the tongue 9 inserted in the slot 10, after which the tongue 9 is bent downwardly as shown in Fig. 4;, thu holding the side wings 7 and the inturned meeting flanges 8 in fixed relation. The surfaces of the inturned flanges 8 are corrugated or otherwise roughened to prevent the foot fromslipping off of the tread portions Extension 5 is then folded upon itself and the double thicknesswith rounded upper corners is bent upwardly at right angles to the inturned meeting flanges 8. This upturned'extension 5 is provided at its central portion with a vertical rib 5 which overlaps the flan es Sand holds their meeting edges in fixed relation. The extension 6 is rolled inwardly forming a reinforced edge which bears against a face of the standard 1 when the step is applied. A transverse bolt 12 adapted to rest in the recesses 2 is inserted through holes 11 in side wings 7 and holds them in parallel spaced relation.

When it is desired to set the step at a predetermined height on the standard 1, they step above described is placed on the standard as shown in Fig; 1. Transverse bolt 12 is caused to enter one of the recesses 2 of the standard 1 and supports the step in position. To hold the tread portion 8 in a perpendicular position with respect to the standard 1, the reinforced edge 6 of the central portion of the step bears against the inner edge of the standard. The side wings 7 extend rearwardly beyond the standard and along opposite sides thereof to hold the step against lateral displacement.

When it is desired to change the position of the step upon the standard, the step is swung slightly upward from a horizontal position and the bolt 12 is caused to disengage the notch 2. Due to the. slight clear. ance between the tread portion '8 and the bolt 12 as shown at 13 in Fig. 8, the step is 7 joined claims.

Having thus described my invention, I claim .1. In an adjustable stilt the combination of a standard having one of its faces provided with a plurality of transverse recesses; a step vertically movable upon the standard, said step having side wings in parallel relation; an inclined body portion joining'the side wings and provided at its lower end with a reinforced bearing edge and at its upper end with an angular extension projecting above the upper edge of the side wings; said side wings having their upper straight edges provided with inturned meeting flanges along ,a portion thereof, said flanges having interlockinglyrengageable connecting means; and a transverse bolt connecting the free ends of the side wings adjacent their upper edges.

2. In an adjustable stilt the combination of a standard having one of its. faces provided with a plurality of downwardlyfextending transverse recesses; a step formed. of sheet metal vertically movable upon the standard, and having side wings in parallel.

spaced relation, said side wings having their upper straight edges provided with inturned meeting flanges along a portion thereof, said meeting flanges having a series of transverse corrugations and interlockingly engageable connecting means; an inclinedbody portion joining the side wings and having at its lower end a reinforced bearing edge and at its upper end an angular extension projecting above the upper edge of the side wings, said angular extension having V pair of side'wings and a" body portion between said side wings provided at its opposite ends with bendable extensions, said side Wings having opposite straight edges inclined with respect to the longitudinal axis of theb'ody portion and provided with bendable extensions projecting therealong for a portion of the length thereof, and having interlockingly engagea-ble connecting means, as described.

v 4. An adjustable stilt comprising a standard provided at its rear edge with a plurality of'transverse recesses; a step having side plates along opposite sides of the standard, said side plates extending for the entire length of the step, the upper portion of the side plates extending rearwardly beyond the standard, such extensions being provided with apertures; and a transverse bolt joining the extensions and adapted to rest Within the transverse recesses of the standard. 7 V

I ROBERT JAMES LYNCH.

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