US1444759A - Ladder - Google Patents

Description

B. K. TRYLOR v Feb. 6, 1923.

LADDER Filed Apr. 15, 1922 lfatented Fel-a (in, 15.923.

1 t l ml] 'im n V'wlif hl lifllillq ttl-f i' 5t .il in Se BEQJAIMIN K. TRAYLQR, OF EL CAMPO, TEXAS.

LADDER.

Application le. April 13,

T all whom t may concern.'

Be it known that l, BENJAMIN n.. 'inL Lon, a citizen of the `United Q ita/tes resiLA at El Campo, in the county of lilharton and of Texas, have invented new and useful lm roreinents in Ladders, of which follow is a specification. The present invention relates to ladders of the type used in stores, libraries and the like, where goods, books or boxes are filed or stacked on shelves ont of reach of a person standing on the floor.

in object of the invention is to provide a ladder of the above described type with a shelf which may be adjusted to various heiffhts along the side of the ladder for oortin e' articles removed from the shelf,

and which with little manipulation may be secured at anv given height against movement downward and easily disengaged and permitted to slide along the sides of the ladder.

Further objects are, simplicity and cheap ness of construction.

@ther objects and advantages will appear in the course of the following specification and claims.

ln the accompanying drawings, which illustrate one embodiment of my invention:

Fig. 1 shows the invention applied to a store ladder movable along the front of a cabinet or ling case, the case being shown in side elevation; V

2 is a fragmentary elevation of a 35 filing case, showing a ladder carrying the improved device in relation to said case;

Fig. 8 is a view of one of the side bars of the ladder with the invention applied thereto;

Fig. d is a perspective view of the carrier; Figs. 5 and 6 are details of construction; and

1922. Serial No. 552,1ll..

or wheels 1G at the bottom 'traveling along` the floor.

To one side bar of the ladder is applied the mechanism constituting the present intention, although it may be applied to an upright extending perpendicularly downward from the ladder, or in any other snitable manner. However, l prefer to apply it directly to the side bar.

The mechanism of the invention comprises, among other things, a pair of guide-ways or tracks 17 secured to the side `bai: by any suitable means if the ladder is of wood, or, which may be cast therewith or secured thereto if the side bars are of metal. Ba tween the guideways 17 is a rack bar 18, the rack bar and tracks extending parallel relation along the side bar from near the top of the ladder toa position a shortdistance above the ledge 12.

,Slidably mounted on the gni'deways 17 is a carrier 19 having a fiat portion 20, and a pair of slides 21 and 22 formed integral .vith the flat portion 19. its shown in Fig. 7, the slide 211a is formed integral with the flat portion 20 and the slide 22L is made edjustable relative thereto by means ot a slot 23 formed in a tongue 2dextending from the slide 22a' and a set'screw cooperating therewith and extending through the aperture 25 in the flat portion 20. By this ar rangement the carrier may be made applicable to side bars of varying width.

The carrier is provided at the top with a flange 25L extending at an angle to the fiat portion 20 and to which a shelf 26 may be attached in any suitable manner as by screws or bolts passing through apertures 27 in the flange 25a.

The flat portion of the carrier is provided with guide members 28 adapted to ft on either side of the raclr bar 18 to prevent wobbling and to properly center the carrier, and the flange `25. is preferably tilted at an angle to the line of the rack in order to compensate for the tilt of the ladder and so as to always position the shelf 26 in a horizontal plane.

On the underside of the shelf is a bracket 29, preferably of spring metal, and having a sharp angular portion 30 adapted to con tact with teeth of the rack for holding the shelf in various positions of adjustment ifi along the ladder. Extend ng upward from are arnis 32 33 to which rope be attached or drawingv the ter an operator ascending the e arins also serve to prevent articles from 'railing oil of tl e shel.

ln operation the Carrier inay be n'ioved alongv luidei-.rays ane` secured in any desired posiuian by ineans oit bracket 9,9 eoaeting with the teeth of the rael, the angular portion being readily niov/ed into and out of the notches on account oil' the resiliency ol` the bracket. The guide :nenabers 22% or the carrier may be inade to lit son'iewhat loosely on the guideways la", in which oase the bracket a9 inay,

o it nesired, more rigid material. The screw for securing the outer end et the rachet 29 to the shell fit loosely in an aperture in the bracket, whereby the angular portion 30 may be sprung,` out of Contact with the teeth et the raelr.

lt will be understoo i oations and chang s above construction withz` appended elaiins.

`What is clain ed as new is:

l. ln combination with a ladder, an ad justable she i? slidably rnounted thereon, slideways and a raolr secured directly to and extending longitudinally of a side bar of said ladder, slides on said shelf tting about said slideways, and a resilientbraelret having,` a sharp angular portion adapted to cooperate with the teeth of said raelr for holding, the shelf in adjusted position.

2. ln Combination with a ladder, a rack and slideways secured to and extending parallel tovone oit the side bars et the ladder, a Carrier having1 slides adapted to traverse said slideways, a bracket comprising a pair oi? arms connected at their upper endsto said Carrier with their lower ends joined at a sharp angle inclined toward said racl and adapted to engage the teeth or" the latter.

3. A store ladder having side bars, slideways and a raelr secured longitudinally to one of the side bars, a Carrier having slides inovable on said slideways, a spring metal bracket having two arnis joined together at their lower ends and seeured at their upper ends to said carrier in spaced relation to said rack, said arins extending angularly downward toward said rack and having the jointure at their lower ends adapted to .engage the teeth oi said rack.

ln combination with a ladder, slideys on said ladder and a reel; between said leways, a shelf, slides on said shelf adaptd to tr vverse said slideways and adjustable Aoward and away troni each other, guides `i posed between said slides adapted, respec- 'ively, to tit the opposite edges oit said raolr and a braelret comprising downwardly oonverging arins secured to said shelf, said arms being spaced troni said rack at their upper ends and sloping downwardly toward said rael; and having,l their convergent ends adapted to engage the teeth of said raolr.

5., ln combination with a ladder, slideways secured to one of the side bars thereof, hava rack therebetween, a shell, slides adapted to traverse said slideways and earried by said shelf, Said slides being adjustable toward and away from eaoh other, and nieans associated with said shelf and cooperting with said rack tor holding said shelf in adjusted position alone said side bar.

G. fin attachment" for store ladders, Coniprising; a raelr for attachment to a side bar oft ladder, a shelf having a pair of slides adjustable toward and away from one another to einbraee and slide along said side bar, and a resilient detent also Carried by said shelf for engagement with the teeth ot said rack.

ln testimony whereof l have hereunto set .my hand in presence o. two subscribing,` witnesses.

chr gl, ce C,

BENJAMIN it. Taarten.

Witnesses ll. T. KLEIN, E. el. llRwiN.

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