US1143058A

US1143058A - Painter's ladder-support.

Info

Publication number: US1143058A
Application number: US87140114A
Authority: US
Inventors: John W Narron
Original assignee: MECHANIC S STATIONARY STAGE Co
Current assignee: MECHANIC'S STATIONARY STAGE Co; MECHANIC S STATIONARY STAGE Co
Priority date: 1914-11-10
Filing date: 1914-11-10
Publication date: 1915-06-15
Anticipated expiration: 1932-06-15

Description

J. W. NARRON.

PAINTERS LADDER SUPPORT.

APPLICATION FILED 001.19, 1912. RENEWED NOV. 10.1914.

Patented June 15, 1915.

WITNESSES INVENTOR Xkm 7Zd/WZ BY 74 ATTORNEY THE NORRIS PETERS CO4. PHOTO-LITHQ, WASHINGTON, D. C,

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JOHN W. NARRON, OF OAKLAND, CALIFORNIA, ASSIGNOIR, TO MECHANICS STATIONARY STAGE COMPAN'Y, OF RICHMOND, CALIFORNIA, A CORPORATION OF CALIFORNIA.

PAINTERS LADDER-SUPPORT.

' Specification of Letters Patent.

Patented June 15, 1915.

App1ication filed October 19, 1912, Serial No. 726,688. Renewed November 10, 191%. Serial No. 871,401.

To all whom it may concern 'Be it known that I, JOHN WV. NARRON, a citizen of theUnited States, residing at Oakland, in the county of Alameda and State of California, have invented new and useful Improvements'in Painters Ladder Supports, of which the following is a specification.

The object of the present invention is to provide an improved support for painters swinging stages or falls, used in painting which ropes can be extended or taken in from time to time to vary the level of the stage.

One objection to this means of supporting the stage is, that since it swings looselyfrom the points at the top of the building, there is great liability, especially when the stage is swinging from a great height, of the stage being accidentally pressed away from the side of the building by one of the painters and thus causing anotherpainter thereon to lose his balance, thereby causing the stage to swing still farther away from the building, so that both of the workmen are then thrown 0H. By reason of the stage being thus loosely suspended from points at the top of the house and therefore being liable to swing away from the wall of the building -with very little pressure, it is necessary for the painter to be very careful not to apply undue pressure to the wall of the building, for this would cause the stage to swing away from said wall, with the results above referred to. Consequently the painter can only work at about two-thirds of his full speed;

A further objection incidental to the old form of support is that under certain conditions, as, for instance, in moving from one end of the stage to the other, the stage has to be steadied by ropes extending therefrom to the ground and held by a body or another workman, and through such persons care lessnessthere is a possibility of the stage becoming freed from its support at one end, and of the painter being precipitated therefrom to the ground. 7

7 either to adjust the stage, or to hold it steady while being so adjusted.

A further object of my invention is to provide a device, which while attaining the above objects, can be applied equally well to all buildings having ordinary forms of eaves trough and roof.

A further object of the invention is to provide such a support for ladders, which can be used to support staging employed by pitinters working on high bill-boards, or the li (e.

In the accompanying drawing, Figure 1 is a plan view of the support as applied to the eaves or drain trough of a house; Fig. 2 is a side view thereof; Fig. 3 is a side view of the .same as used for painting on a billroof of a building, having an eaves or drain trough 2.

3 indicates steel plates, through which are passed the terminal portions of tubes 4, each of which is bent in the form of a yoke. Said tubes are passed, not only through said plates, but also through a wooden bar 5, and also through plates 6, said plates 3 and 6 lying against inner and outer sides respectively of the terminal portions of the bar. Said tubes are secured to said plates and bar by means of nuts 7, 8, screwed on said tubes, on the opposite sides of said bar, and thus clamping the bar and plates together.

9 indicates short sleeves,'-around the outer side members of the yokes, which can be moved longitudinally on said tubes, and se cured by set screws 11 to adjust the device to any desired position according to the width of the trough with which it is to be used. Through lugs 12 extending from the inner side of the sleeves 9, are screwed vertical adjusting screws 13, the lower ends of 'The set screws 11 extend horizontally and which engage the upper surfaces ofclamps V end member,

1 1, which are pivoted, as shown at .16, to the under sides of said sleeves. Said upper surfaces are so formed in relation to the adjusting screws 13, that in the clamping position the lower ends of the screws 13 are substantially on the same level as thepivots 16.

do not interfere with the operation ofthe screws 13. The upper portions of the clamps 1% are hollow, and of 'triangular cross-section, and connecting thetwo clamps of each support is abar 17 or wood, extend- 7 ing the full length ofthe support, theends of'which are driven'iirmly in said hollow clamps bar 180i wood/triangular in cross-section, is secured at its ends 'to the lower portions er the two plates3. The lower portions of said plates and clamps l l-f extend obliquely downward, and at their extreme lower edges they areformed with outwardlyjjextendin'g dogs 19 21, which e gage the inner surfaces -of opposite sides of the trough. Throughthe elQlique poFtiGnS ofthe plates 3 are passed screws which are screwed through, and out of, the'terminal portions of the bar 18ftl1eir j pointed ends engagingithe innerside oftheeavestrough. To the upper side oit' said bar 18 are secured upwardly extending brads 20 which can engage theunder surface of the outermost shingles .to additionally 'secure'said support.

v In'the ends of the inner side members of the yokes, areinserted pointed rods 23,'secured in any desired'position in'the tubes 4,

by ineansof set screws 2%, screwed through the inner nutsj7, on said tubesiand bearing down upon said "rods. However, said rods may otherwise be secured adjustablyfby forming them with threads and screwing them inthe' ends'of said tubes, also threaded.

l ke an additional means of'securely holdingthe supportin the desired position in relation to the roof ofahouse,"there are'secured agalnst the terminal portions of the "bar 5, by means of the nuts 8, platest, the

ends of which are formed with vertical .grooves27, 28. In said grooves can slide vertically lugs 29, 31, extendingupjwardly bers of the yokes, and having one fixed longitudinal member 43 and 'one movable lon- Pmeans Lofysetfscrews 47.

gitudinal member'te, pivoted at 46Qup0n yokes and then clampedin said position by The following is the, mannerin which the a house. The painter first sets his ladder 48 againsflthe roof of the buildin'g, and

ascends the ladder, carrying with him the p p v This frame can I be ad- .justed to any desired position-upon the .device is ordinarily used when supported on v support. 1 If the ladder does notextend a considerable height above the roofo f the building, then'he passes the support over the ladder and into such a position." thatthe ladderextends upwardly fwithin the frametl The painter then secures of the'biiildingjmoves 'theframe and ladder af'way from thebui lding, int-oajpo's'ition in which the'ladd'er whenr 'properly adjusted ,wiii' smau" emen therein and at a suitable distance fiom 'tlie 'wiill of the building to support asca'ttold thereon. In general. the ladder willnot bevertical when thefirame ,has befenmovedito tlii'fsdistance, but it will be necessary to jmove the bottom of ladderiin toward the wall of the building so that the "ladder lsta' nds vertically infthe frame. 'lVhenthe frame has been moved to a proper position, it is vthen secured upon tl'iesupport by; screwing the set screws e7. Should the ladder extend so farab'ove the roof of the b'uildin g,that it-is notf practical to jpassjtheframe over the ladder, then 'lthe outenmovable side '44 jof the frame is moved toutwar'd 'to p'er mit the frame to be moved to a proper. position around. the lad der, the L movable-"side 4 4: is "brought again fto its pro 1 en position in parallelism with "the 'fixedj side, and a nut 4:9;onfthe threaded (if movable side is then screwed 'on to a: thradedffixed' extenstones from the adjacentend of'the frame.

{The i is pregame with longitujdinal extensions 5%, which "are used when it is desired to'sup'port the 'la'dder toa position in avertic al plane at right-angles to that shown Fig. '2,that is, at right angles to the the building, or "for'any other desirec lipurpose 'Thes'e' extensions 54 when moved"to the; pifep r "distancefiom the w ll of "t1iebuilding,fare alsofuseful for Pett i eeiii liPs ee on' 'said support, said -framebeing atthis time in itsinnermostposition, near the -roof V of the building. the support to thefbuilding by pressing the fprongs 37 into the roof and by I screwing downthescrews 13 'so that the clamps 14 engage the eaves-trough TVl hen this supportf'issufficientlysecured, 'thepainter then, bf'y pressing with liis foot fa'gainst the wall I engage the butt ends of the shingles made 7 Copies of this patent may be obtained for five cents each, by addressing the additionally secure by nailing, or engage an upper cleat secured in like manner.

Figs. 3 and 4 illustrate the arrangement of the parts of the support when attached to a high bill-board 58 or a wall extending above the flat roof of a house. When so using the support, both the plates 3 and the clamps 14 are reversed, so that their

dogs

19, 21, extend inward or toward one another, and, as will be seen, these dogs then engage opposite sides of the billboard, while the brads 22 engage the under side of the top framing 57 of the bill-board. The bar 32 is not now used. In other respects the mode of operation is similar to that before described.

The device is absolutely safe if properly used for it will be observed that the support bears only its own weight, and no partof the weight of the ladder or scaffold. Even if the support should break, the only result would be that the ladder would fall against the building, the weight of the scafiold being on the inside.

I claim V 1. In combination with the eaves trough of a house, a supporting device removably secured to the eaves trough, means for supporting, against lateral displacement from such device, a ladder on the ground, and means for securing said supporting means on said supporting device at different points thereon. V

2. In combination with the eaves trough of a house, a support removably secured to said eaves trough, and a ladder-supporting frame secured to, and wholly supported by,

said support, and adjustable, independently of said support, to and from said eaves trough.

3. In combination with the eaves trough of a house, a support having parts adapted to engage the inner surface of the eaves trough, means for separating said, parts from each other to cause them to engage said surface at different points, anda laddersupporting frame movably secured to said support.

4. In combination with the eaves trough of a house, a support comprising two yokes, devices supported upon the outer members of said yoke and adapted to engage the eaves trough to secure the support thereon, and a ladder-supporting'frame movably secured to the inner members of said yokes.

5. In combination with the eaves trough of a house, a support containing two tubular yokes, devices supported upon the outer members of said yokes and adapted to engage the eaves trough to secure the support thereon, a ladder-supporting frame movably secured to the inner members of said yokes, and rods secured in the ends of said yokes and having sharpened ends adapted to engage the roof of the house.

6. In combination with the eaves trough of a house, a support having two pairs of parts adapted to engage the two sides of the inner surface of the eaves trough, means for separating said parts from each other to cause them to engage said surface, means for connecting corresponding parts of each pair, and a ladder-supporting frame movably secured to said support.

7. In combination with the eaves trough of a house, a support comprising two yokes, devices supported upon the outer members of said yoke and adapted to engage the eaves trough to secure the support thereon, and a ladder-supporting frame movably secured to the inner surface of said yokes and having outwardly extending arms.

8. In combination, a ladder-supporting frame, a support upon which said frame is adjustably secured, two pairs of clamps carried by said supports, the clamps of each pair being adapted to engage opposing surfaces of the structure with which the device is to be used, means for moving one of said clamps relatively to the other to cause them to engage said surfaces, and means for connecting corresponding clamps of each pair.

9. In combination, a ladder-supporting frame, having outwardly extending arms, a support upon which said frame is adjustably secured, two pairs of clamps carried by said supports, the clamps of each pair being adapted to engage opposing surfaces of the structure with which the device is to be used, means for moving one of said clamps relatively to the other to cause them to en gage said surfaces, and means for connecting corresponding clamps of each pair.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses:

JOHN w. NARRQN.

. ,Witnesses FRANons M. VVRIGHT,

D. B. RICHARDS.

Commissioner of Patents,

Washington, D, C.