US1625423A - Window platform - Google Patents

Description

Aprii 19 1927.

J. F. PECKENPAUGH WINDOW PLATFORM Filed July 21 1926 2 Sheets-Sheet 1 April 19,1927. 1,625,423

- J. F. PECKENPAUGH WINDOW PLATFORM Filed July 21. 1926 2 Sheets$heet 2 Patented Apr. 19, 1 927..

UNITED STATES JOHN E. PECKENPAUGH, OF CEDAR RAPIDS, IOWA.

WINDOW PLATFORM.

Application filed July 21, 1926. Serial No. 123,900.

This invention relates to platforms such as are used by window washers and others operating on the outside of windows. The object of the invention is toprovide a convenient, portable and serviceable platform for such uses, special attention having been given to such a construction as will render the platform perfectly safe.

The nature of the invention is fully disclosed in the description and claims following, reference being had to the accoupanying drawing, in. which Fig. 1 is a side elevation of a platform embodying the invention as in use but with the nearer bearing-block removed, the window parts being shown in section. Fig. 2 is a fragmentary view showing a part of the floor, sill and supporting parts on section lines 2-2 and Q -Q", of Fig. 1, looking toward the left. Fig. 3 is a plan view of the platform in window position, but collapsed.

in the drawing, the numeral. 5 denotes the wall of a building surrounding a window opening, and provided with a stone sub-sill (3. in the opening is fixed a window frame "Z provided with the usual sill 8. In Fig. 1 the casing 9 is shown of a simple flat type, while in Fig. 3 the casing is of a molded 'ype, shown in section.

A pair of sills 10, preferably of Tiron, is bent at 10 to form uprights 10*. To the upper ends of these uprights or standards is secured a pair of bearings 11, which are themselves connected by a tube 172. The long, tubular hearing so formed carries a pair of telescoping rods or shafts 13, which may be secured in any desired position by thumb-screws 14. To the outer ends of the shafts are securely attached bearing-blocks adapted to make contact with the inside wall of the building adjacent to the window casing. The blocks are preferably rectangular, and with their supporting shafts off center, whereby the narrower extensions of the blocks may be used when the casings are thin and flat, as in Fig. 1, and the wider extensions when the casings are of the thicker, molded type. The edges of the blocks are shod with rubber, or the like non-abrasive material, to prevent the marring of inside walls.

On the same shafts are mounted abutment plates 16, slidable on the shafts, and secured in any desired position by thumb-screws 17. In practice the bearing-blocks are set close to the outer edges of the casings, and the abutment-plates against the Jambs or window stops, as shown in Fig. 3. This serves to hold the platform rigidly against any possible sidewise movement, such as might be terrifying, if not actually dangerous.

To the upper faces of the sills is bolted the floor 18, herein shown as wooden boards or planks set crosswise. The standards are reinforced by diagonal braces 19 bolted thereto and to the sills.

The depending webs of the sills are pierced with bolt-holes 20, and by means of bolts 21 depending brackets 22 are secured adjustably to the sills. These brackets abutting on'the outer faces of the stone window sills serve as strong counter-bearings to the bearing-bloc rs inside, to give. a cantilever support to the platform.

Beiow the sills, nearthe upturned stand.- ards, foot-blocks 23 are attached, as by lagscrews 2% and wood-screws 25. The blocks are shod with a suitable yielding material, such as sheet rubber, 26, to protect from a rasion the window sill on which the footbloclrs rest.

To protect the operator from falling o d the platform, it is provided with a railing which forms a barrier on the three outer sides of the platform. Four uprights, 27 and 27 are pivoted at their lower ends to brackets 28 boited to the platform and sills. A cross rail 29 connects the two outer standards rigidly, being welded thereto. These and the inner standards are connected by cross rails 80, to which are welded studblocks 31 forming pivots for the ends of the cross-rails. The inner standards are similar ly provided with pivotal sleeves 32, which carry sliding brace-rods 33 hinged to the uprights 1O at 34. Terminal heads 33 limit the out-ward movement of the railing by contact with the sleeves. Its movement in the other direction is prevented by thumbscrews 85. The whole forms a railing which may be folded down on the platform, when not in use, and thus occupy little space in handling and transportation. Then erect, as in Fig. 1, it is a safe and rigid barrier against stepping off the platform. In practice the railing standards are made of tubular material, and to give additional height to the railing a supplemental railing is provided. having posts 36, cross-rail 37, and pivoted side-rails 38. The posts engage the lower railing standards telescopically, and may be secured at any desired height by means of thumb-screws 35).

To erect the platform, the railing is preferably left in collapsed position, as in Fig. 3, until the platform is in position, as thus the overhanging weight is reduced. For greater convenience the brackets 22 may, by measurement, be adjusted to their proper position before the platform is put through the. windo though such adjustment may he made thereafter, if desired. The bearings blocks 15 are set to the right distance apart, when the plat'torm may be snteiy thrust through the window and settled to working p0 ion. The. abutment plates it; are then set e' 'ainst the n'il'u'hiuv jzunbs and the railing;- raised and in tened, when the platform is rcedy for use. with entire certainty as to liability.

thus described my invention, l

l. in a wizulow-plat form. the combination of a pair of sills, u connertwl flooring, uprights rish-sr from the inner ends ot the s lls, a courier-tile tubular lieu-ring. shafts carrying wall bearing bloclzs mounted adjustably in said tubular bearing. toohbloclcs to rest on the window sill, and brackets secured adjustrroly to the sills beneath. the sills being pierced with series oi bolt-holes, and the brackets being secured by said bolts.

In :r window-phit'torm lmving, supportn means substantially as described, a protective railing, comprising a plurality of side standards, the outer ones rigidly connected by a cross-rail, sideails pivotally connect:- ing with the standards, sleeves pivoted to the inner pair of standards, and brace-rods pivoted to the platform supports at one end, and slidable in said sleeves, with heads to prevent detachment therefrom, and means for preventing slippage of the sleeves on the rods.

3. In a window-plattorln having sills with upstanding inner uprights and a connected flooring, a protective railing, comprising a plurality oi side uprights, floor brackets to which the uprights are pivoted, a connecting cross-rail tor the outer pair of uprights. side rails pivotally connecting inner and outer uprights, and side braces pivoted to the sill uprights and slida-bly connecting with the railing, with means to limit the outer movement ot the railing, and to l't. i {lll:1t(3 it: movement inwardly.

l. in a window-piattorm, a protective rail inn. comprising tubular stamlards pivot-ally ronnec ing with the platform at their feet, 1 )i50l72t'i side rails, braces pivotally connecting with the 1 )lattorm at their inner ends, and slidably with the railing at their outer ends, and a simplemeutel railing composed of posts telescoping in the tubular standards, and provided with a cross-rail and pivota-lly connecting side-rails, with means for hold in the supplemental railing at any desired height.

In testimony whereof I atlix my signature.

JOHN F. PECKE; PAUGl.

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