US707238A - Antislipping foot for ladders or the like. - Google Patents

Description

UNITED STATES? PAT-ENT OFFICE.

ALBERT KERN, OF S'I. LOUIS, MISSOURI.

vANTISLIPPING'FOOT FOR LADDERS `OR THE LIKE.

SPECIFICATION forming part of Letters Patent No. 707,238, dated August 19, 1902.

Application filed November 14, 1901. Serial No. 82,187. (No model.)

To all whom it may concern,.-

Beit known that I, ALBERT KERN, a citizen of the United States, and a resident of St. Louis, Missouri, have invented a certain new and useful Improvement in Antislipping Feet for Ladders or the Like, of which the following is a specification.

My object is to construct antislipping feet for ladders and the like; and my invention consists of an elastic base formed of vulcanized rubber or similar material, a socket to receive the lower end of the ladder-posts, and

l a hinged connection between the base and the socket; and myinvention consists, further, of the novel features herein shown, described, and claimed.

Figure 1 is a side elevation, partly in section, of one of the antislipping feet for ladders. Fig. 2 is a horizontal section on the line 2 2 of Fig. l looking downwardly. Fig. 3 is a vertical cross-section on the line 3 3 of Fig. 1, parts being broken away to economize space.

Referring to the drawings in detail,tl1e elastic base 4 is composed of vulcanized rubber and has a recess 5 in the lower face. The socket 6, which is adapted to receive the lower end of the ladder-post 7, is secured in position by `means of the screws S. The metal ear 9 is placed on top of the elastic base 4, and the rubber or canvas strap 10 binds the ear 9 in position. Said strap passes around above the ear, the ends of said strap being stuck to the base 4. The anges 11 extend upwardly beside the strap 10 to hold the ear9 from endwise motion. The ears 12 extend downwardly from the socket 6, one upon each side of the ear 9, and the hinge-pin 13 is inserted through said ears 9 and 1-2-efs required to form thev hinged connection between the socket 6 and the elastic base 4. The elastic base 4 will present considerable friction to the smooth pavement or loor upon which the ladder stands, and thus give considerable antislipping qualities, and -when a load is placed upon the ladder the base 4 will be compressed and force the air out of the recess 5, and the suction caused by the reaction of the elasticity of the base will securely hold the ladder from slipping.

y It is cbvious that the ladder-posts might be bifurcated and hinged directly to the base or that any other form of connection might be used instead of the sockets. It is also obvious that the ear 9 might be glued-to the base or riveted or securedv in any other suitable way. f

I claim- 1. In a device of the class described, the elastic base 4composed of vulcanized rubber and having the recess 5 in its lower face, the socket Gadapted to receive the lower end of the ladder-post, the metal ear 9 placed 'on top of the elastic base, and the strap 10 holding the ear 9 in position, said ear 9 being pivoted to the socket 6. p

9. In a device of the class described, an elastic base having a smooth lower contacting surface, and having a recess centrally located in said lower surface,\a metal ear secured to said elastic base by means of a strap, and a socket pivoted to said ear. y

3. In a device of the classdescribed, an elastic base 4'composed of vulcanized rubber, and having a smooth lower face, and having the recess 5 centrally located in said lower face, the socket '6 adapted to receive the lower end ofthe ladder-post, `the metal ear 9 placed on top of't-he elastic base, the strap 10 securing said ear in position, saidstrap passing above the ear, and theends of said strap be- Y and the pin 13 connecting said'ears 12 to the ear 9.

.ALBERT KERN. Witnesses:

SEMER G. WELLS, FRANCES A. HoovER.

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