US1142072A - Ladder-holding device. - Google Patents

Description

0. H. WINGERD. LADDER HOLDING DEVICE.

APPLICATION FILED MAR.17| I915.

GTUN. D. c.

DAVID H. WINGERD, OF RAMONA, KANSAS.

' LADDER-HOLDING DEVICE.

Specification of Letters Patent.

Patented June 8, 1915.

Application filed March 17, 1915. Serial No. 15,000.

To all whom it may concern Be it knownthat 1, DAVID H. WINGERD, a citizen of the United States, residing at Ramona, in the county of Marion and State of Kansas, have invented certain new and useful Improvements in Ladder-Holding Devices, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to an improved ladder holding device, and has for its primary object to provide very simple and effective means for retaining a ladder in position upon a telegraph or telephone pole sothat the same may be safely mounted without liability of the ladder slipping or moving longitudinally of the pole.

The invention has for another and more particular object to provide a gripping loop pivotally mounted upon the ladder and adapted to partially surround the pole, and means for limiting the pivotal movement of the ladder in one direction and supporting the same in position to be properly en gaged with the pole.

The invention has for a further general object to improve and simplify the construction of devices of the above character whereby the same are rendered positive and re liable in actual use and highly eliicient and serviceable.

With the above and other objects in View, my invention consists in the novel features of construction, combination, and arrangement of parts to be hereinafter more fully described, claimed, and illustrated in the accompanying drawing, in which,

Figure 1 is a perspective view showing a ladder supported upon a telegraph or telephone pole by means of my invention; Fig. 2 is a side elevation of the ladder removed from the pole; Fig. 3 is a section taken on the line 3-3 of Fig. 2 Fig. 4: is a horizontal section illustrating the manner of clamping the lower end of the ladder to the pole; and Fig. 5 is a detail perspective view of the gripping or holding loop. Referring in detail to the drawing, 5 designates the two bearing brackets which are secured to the outer faces of the ladder rails adjacent their upper ends. Each of these brackets is provided with an ear 6 projecting laterally from the rail of the ladder and upon one of the ears, an inwardly projecting lug 7 is formed, the purpose of which will be later explained.

In the ears 6 of the bearing brackets, the ends of a horizontally disposed rod 8 are suitably secured, and upon said rod the sleeves 9, integrally formed upon one end of a loop 10, are loosely engaged. Between these sleeves, a U-shaped plate 11 is loosely engaged upon the rod and has its ends disposed against the opposed ends of the sleeves. This plate carries a set screw 12 which is adapted to be adjusted into binding engagement with the rod 8, whereby the sleeves are held against a longitudinal shifting movement upon the rod.

The loop 10 is provided in vone side with an entrance throat or opening indicated at 13, and the loop bar, at opposite sides of this opening, is provided with prongs or spurs 14 and 15, respectively, which project in relatively opposite directions. The outer end of the loop also has formed upon its inner face, an inwardly extending spur 16. As clearly shown in Fig. 2 of the drawing, the loop 10 normally rests upon and is supported by the inwardly extending lug 7 on one of the bearing brackets. To the ladder rails, at their lower ends, the extremities of a wire rod 16 are suitably connected. The intermediate portion of this rod is bent to provide a substantially V-shaped projection 17 therein which is adapted for engagement with one side of the pole, as clearly shown in Fig. 4'. To said rod, at one end of this V'shaped portion, the extremity of a chain 18 is attached. This chain is adapted to be passed around the pole and detachably engaged with or connected to the rod 16 atthe opposite side of the loop 17 therein. In this manner, it will be apparent that the ladder will be securely clamped or held at its lower end upon the pole.

In applying the ladder to the side of the pole so that the same may be mounted, the ladder is raised to the desired position along the side of the pole and the pole is received in the open side 13 of the loop 10. The inwardly projecting spur or prong 16 on the loop first engages the pole and provides an initial gripping action, and upon a downward movement of the ladder, the oppositely projecting spurs 14 and 15 become em bedded in the wood of the pole. After properly attaching the chain 18 to the rod 17 at the lower end of the ladder, it will be apparent that the ladder is securely held in its applied position against either a longitudinal or lateral shifting movement with rev as claimed.

Having thus fully described my invention, what I desire to claim and secure by Letters Patent is spect to the pole. In this manner, it will be seen that I have produced a very simple and effective means for easily, quickly and securely attaching and supporting a ladder upon the side of a telegraph or telephone ole. 501e, the set screw 12 may be loosened and the sleeves 9 of the loop 10 shifted upon the rod 8 so as to permit the loop to fall downwardly against the side of the ladder. By then again shifting the loop so that the same is disposed beneath the horizontally disposed lug 7, upon again tightening the screw 12, said loop is retained in its folded or inoperative position and held against pivotal movement upon the rod.

From the foregoing description, taken in connection with the accompanying drawing, the construction, manner of operation and several advantages of my invention will be fully and clearly understood.

The device, while exceedingly simple in its construction, is also very serviceable and highly convenient in practical operation as it admits of the easy, quick and secure at tachment of the ladder to the pole or its re moval therefrom. It is, of course, apparent that the device is susceptible of various changes in form with regard to the several structural features thereof and will be made in various sizes, in accordance with the particular size of the ladder to which it is applied and the purpose for which the same is to be used. I, therefore, reserve the privilege of resorting to all such legitimate modifications as may be fairly embodied Within the spiritand scope of the invention at opposite sides of the entrance opening be ing provided with reversely projecting spurs for gripping engagement in the pole, and means on the lower end of the ladder to clamp the same to the pole.

2. The combination with a ladder, of

means for attaching said ladder to a pole in- O'opies of this patent may be obtained for five cents eachfliy addressing; the Commissioner of Patents,

When the ladder is removed from the cluding a loop pivotally mounted for swing ing movement upon the upper end of the ladder and having an entrance opening in one side to receive the pole, means for limiting the swinging movement of the loop in one direction to support the same in a projected position for engagement with the pole, said loop at opposite sides of the entrance opening therein having oppositely projecting spurs for gripping engagement in the pole, and means on the lower end of the ladder for clamping the same to the pole.

3. The combination with a ladder, of means for attaching the same to a pole including bearing brackets secured to the ladder rails adjacent their upper ends, a rod fixed in said brackets, a loop loosely mounted for swinging movement upon said rod, one of said brackets beingprovided with an inwardly projecting lugto limit the swinging movement ofthe loop in one direction and support the same for engagement with the pole, said loop having an entrance opening to receive the pole and reversely projecting spurs at opposite sides of said opening for grippingengagement in the pole, and means on the lower end of the ladder for clamping the same to the pole.

4. The combination with a ladder, of means for attaching the same to a pole including bearingbrackets secured to the rails of the ladder at their upper ends, a rod fixed in said brackets, one of the brackets being provided with an inwardly projecting lug, a

loop loosely engaged upon said rod for swinging movement and having an entrance opening in one side, an adjustable stop arranged upon the rod to prevent longitudinal movement of the loop thereon and dispose the same in position for engagement with said-lug whereby the loop is supported with respect to theladder for engagement with the pole, said loop at opposite sides of the entrance opening having reversely projecting spurs for gripping engagement in the pole, and means'on the lower end of the ladder to clamp the same to the pole.

In testimony whereof I hereunto afl'ix my signature in the presence of twowitnesses. DAVID WVINGERD.

Witnesses: I I v GEORGE W. KLovnR, N. l\I.-SONDERGARD.

Washington, D. 0.

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