US1455002A - Ladder foot - Google Patents

Description

Patented May l5, 1923.

, UNITED STATES.

" PATENT OFFICE.

ALBERT JoHNsoN, oF LIVERPOOL, ENGLAND, AssIGNonro Toius HENsHAw, or LIVERPOOL, ENGLAND.

LADDER room.

Application led June 25, 1919.' 'Serial No. 306,758. A

To all tqhom t may concern.'

Be it lmown that I, ALBERT ,I OHNsoN, a subject of the King of Great Brltain,v reslding atLiverpoo'l, in thecounty of Lancaster f and Kingdom of England, havey invented certain new and useful vImprovements in Ladder Feet, of which the following is a specification. v

This inventionv hasi'for its object to pro- `vide a device to be applied to ladders, scaffolding poles or the like for keeping them anchored or held more securely in kposition so that they cannot become accldentally displaced.

l5 In the accompanying drawings Figure l is a sectional front view of the lower end of one ofthe side rails of a ladder with my device applied thereto;

Figure v2t-is a side-elevation thereof;

, 4 Figure 3 is a sectional front view of the lower end of the two side rails of a ladder with my device embodying a slight modification applied thereto.

Figure 4 is a side elevation and.

Figure 5 is a sectional view showing modications.

y .In these, A is a side rail of thelad'der, B the socket in which the end of afladder side rail is held, C a clamp for holding .the end 30 of the side rail rmly against the socket, D.

roughnesses formedin the side of the socket so as to hold the side rail firmly, E the metallic cup "s hapedm'ember to which the pad or Asuck'erH is secured by a screw and washer In Figures' 1 and 2 the-cup shaped member is articulated to the socket by the hinge pin F, and I is a steady pin screwed'throu h a hole iin a bo'ss 4I cast integral with tie socket B, so that by turning this steadypin 40 its end will impact against the cup shaped.

part E and 'steady it soas to prevent any possibility of the said cup shaped part and its pad being tripped, or in other words holdthe socket and cup shaped art at a 'ven an. gle relatively to one anot er. In. igure 3- the cu' shaped parts E are made integral with t e sockets B B instead of bein articulated, and K is a turn buckle screw rawso as to press the roughnesses D firmly into the side rails and hold them tight. L isa hand wheel t0 turn the buckle screw K.

In Figure y4 the open end H of the pad or sucker H has an angle or chamfer which bears'a suitable relation to the slope of the ladder when erected in position.

In Figure 5 means are provided for regulating the distance that the respective pads .or suckers H projects from the ladder end.v

In this the metallic cup shaped member E 'to which the pad H is secured, is hinged .by the hinge pin4 F 'to a supplementary member L which is provided with ascrewed stem M adapted to bescrewed'into ascrewed hole in the bottom of tlie socket -B. By turning the members L', the respective distances that the two pads H project from the ends ofthe two side rails of the ladder can be varied.

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This is useful in cases where a ladder is erected against the building in a street having a radient, as it enables one ofthe ads to project a littlefurtherfrom one o the side rails, than the, pad projects from the other side rail, thus allowing bothv side rails I This avoids the use of the wedges for propl ping up one of the side rails at the bottom to the level of the other. I declare that what I- claim is 1. In a device of the character described,

member having aA .screwed stem screwing into the bottom of Athe socket member; a cup-shaped member pivotally carried .by said supplementarymember; and a cup-shaped suction pad secured to said cup-sha ed member.

3. ln a device of t e character described,

the combination o f a pair of socket members,v

5 each adapted for the reception of a ladder foot; a suction pad secured to the under.

av ladder may be securely clamped in place 10 in said socket members.

In witness whereof, I have hereunto signed my name this 21st day of May, 1919, inthe presence of two subscribing witnesses. l

ALBERT JOHNSON;

Witnesses:

JOHN MCLACHLAN, D. M. THOMAS.

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