US2164519A

US2164519A - Scaffolding

Info

Publication number: US2164519A
Application number: US203004A
Authority: US
Inventors: Richard C Hayner
Original assignee: Individual
Current assignee: Individual
Priority date: 1938-04-20
Filing date: 1938-04-20
Publication date: 1939-07-04
Anticipated expiration: 1956-07-04

Description

July 4, 1939. HAYNER 2,164,519

' SGAFFOLDING Filed April 20, 1958 Patented July 4, 1939 I UNITED STATES PATENT. omen SC'AFFOLDING Richard G. Hayner, Bloomington, Ill. Application April 20, 1938, Serial No. 203,004

1 Claim.

This invention relates to improvements in scaffolding, and more particularly to the construction of brackets to mount a horizontal foot board for men working upon the scaffolding, mounted for adjustmentupon upright standards with means carried upon the bracket forbngagement with the board, not only to prevent movement of the board, but also to prevent movement of the standards.

A scaffolding of this type is designed mainly for the purpose of resurfacing the sides of small houses, or bungalows, requiring usually a standaid of not more than 20 feet in height, although the standards may be increased in height and the scaffolding may be operated in the same manner. In small houses, scaffolding for this purpose must be readily assembled and installed in working position and moved from place to'place along one side, or from one side of the house to the other without dis-assembling the scaifolding. It is also desirable to construct such scaffolding so that the standards may be engaged with ground of an uneven surface and the position of the brackets upon the standards readily and easily adjusted to mount the boards initially in a horizontal position and to adjust the board in a vertical position.

With these and other objects in View, reference is made to the accompany sheet of drawings which illustrates a preferred form of this invention.

In the drawing: Figure 1 is a view in front elevation of a scaffolding applied to the side of a house.

Figure 2 is a top plan viewof- Figure 1.

Figure 3 is an enlarged view in side elevation, with parts broken away, of Figure 1.

Figure 4 is a view in front elevation of Figure 3.

m Figure 5 is an enlarged detail top plan view of Figure 3 with parts broken away.

Figure 6 is a view in perspective of the bracket removed and folded for transportation.

Figure 7 is a view in rear elevation of the 5 standard boot and winch.

In the embodiment of this invention illustrated, a bracket having a horizontal member I is mounted with one end embracing a supporting standard 2 and the other end mounting a wheel 3 adapted to rest upon and travel over the side of the house. The member I is mounted in a horizontal position upon the standard 2 by means of an angular member 4 pivoted at one end to the horizontal member I adjacent the wheel 3 which member is provided at, its other end with a fork for embracing the standard 2 and this member 'thereabove to provide an eye. The portion of the 5 member I which, embraces the standard 2 mounts a roller 6 adaptedto engage the outer side of the standard and the forked portion of the pivoted member 4 mounts a roller 1 adapted to engage and travel over the opposite side of the 10 standard 2.

A metal boot adapted to engage the bottom and sides of the standard 2 with a heel adapted to engage and pierce the surface of the ground is dctachably engaged with the sides of the stand- '15 ard, as hereinafter described, and supports a winch on the front side of the standard 2 having a drum 8 about which is wound a cable 9. A pulley supporting cap I0 is detachably secured over the top of the standard 2 with the pulley II thereof on the same side as the eye I2 of the strap 5. The cable 9 passes over the pulley II and is provided with a hook I3 to engage in the eye I2. By operating the winch by rotating the handle I4, the cable 9 will raise and lower the bracket I and maintain it in stationary position so that two or more brackets may be arranged in horizontal plane to support a board I5 over which the men working may travel.

Each bracket also pivotally mounts upon the member 4 adjacent the pivotal point of the strap 5 oppositely disposed braces I6 with their free ends pivotally mounting board clamps l1 and so arranged that when a board for supporting workmen rests upon the horizontal member I andthe 35 board clamps I! are attached thereto by embracing the edge of the board nearest the standard 2, the board will be held in a plane at right angles to the axis of the standard.

The metal boot for attachment to the foot of the standard is formed preferably of two side members l8 of angle iron, spaced apart at the bottom by a cross strap I9 preferably of angle iron, and at the top by a plate 20 mounting the drum 8 of a winch operated by the handle I4. 45 The standards 2 are formed preferably of commercial lumber of standard 20 foot length and 4 inches square in cross section, commonly known as 4 x 4. The side members I8 are so spaced apart that the angles thereof will embrace the 5 edges of the standard 2 with the cross strap I9 in engagement with the foot of the standard.

The side members I8 are extended below the cross strap I9 and are preferably pointed, as shown,

to form toes 2| easily forced into the earth when 5;,

progresses upwardly,

the location of the standards has been determined.

The boots are preferably secured in engagement with the standards by thumb screws 22 passing through the side members I8 to engage in the wood of the standard 2. The pulley caps 10 are secured preferably to the tops of the standards 2 by similar thumb screws 22 and the boards l5 are preferably held within the clamps I! by similar thumb screws 23 also acting as pivotal connections to their respective braces l6.

In erecting this scaffolding, the metal boots and pulley caps are first attached to each standard and the brackets are then mounted thereon in their lowermost adjusted position. Two standards are required in erecting this scaffolding, and after they have been prepared in the manner described, a board 15 for supporting the workmen is rested upon each of the horizontal members I of each bracket with the standards held in vertical position and the brackets are then adjusted by operating the winch so that the board will be held in horizontal position. The board clamps I! are then secured about the edges of the board on each side of each standard, as shown in Figures 1 and 2. These clamps H and their respective brackets it not only secure the board 26 upon the bracket, but also secure the standards 2 in vertical position and prevent any lateral oscillation about their bases. The standards are then moved so that the wheel 3 of each bracket rests against the side of the house. The too 2! of the metal boot on the foot of each standard 2 secures it firmly to the ground so that the brackets may raise the board 16 as the work and the weight of the brackets together with the weight of the workmen on the board It holds the scaffolding against the wall of the building.

When it is desired to move the scaffolding, the brackets are adjusted to their lowermost position and two men may readily move the scaffolding to the desired position by lifting the standards at the same time from their engagement with the ground and transport the whole scaifolding without dis-assembling.

A scaffolding bracket constructed as disclosed herein may be readily dis-assembled from the standard 2 by withdrawing the retaining pin 24 from the end of the member I normally retaining the roller 6 in engagement with the outer side of the standard 2 and disengage the free end of the strap 5 from under the embracing stop 25 upon the under side of the. member I to remove it from the standard after disengaging the clamp I1 from the foot board. The angular member 4 being pivoted at its upper end ad acent the roller carrying end of the member I with one end of the strap 5 pivotally mounted adjacent the forked end of the member 4 and the ends of the board clamp braces It being pivot-ed upon the same member, it follows that the bracket is allowed to be folded into the compact formation shown in Figure 6. The standard pulley cap l0 and boot are readily detached from the standard 2 by loosening the thumb screw 22 and may be assembled as a single package for transportation by operating the winch to take up on the cable 9 to hold the cap in engagement with the boot. Therefore, the bracket and boot from each standard may be easily carried by one man.

What I claim is:

An adjustabe scaffolding brace including a horizontal member having a wall engaging roller at one end with the other end bent back upon itself to embrace a standard and mounting a side of the embraced roller to engage the outer standard with an an ular brace pivoted thereto adjacent the roller carrying .end, said brace b ing forked at the free end .and mounting a roller adapted to embrace the standard with the roller in engagement with the inner side thereof and haying a strap pivoted thereon adjacent the forked end provided with means to engage the under side of the horizontal member and provided with means extending above the said member for engagement with means for raising and lowering the bracket .upon the standard, wherein said lateral braces are pivoted to the angular brace adjacent its forked free .end having board clamps pivotally mounted upon their free ends.

RICHARD .C. HAYNER.