US3292734A

US3292734A - Roof scaffold

Info

Publication number: US3292734A
Application number: US403026A
Authority: US
Inventors: Franz F Swanberg
Original assignee: Individual
Current assignee: Individual
Priority date: 1964-10-12
Filing date: 1964-10-12
Publication date: 1966-12-20
Anticipated expiration: 1983-12-20

Description

D 1955 IF. SWANBERG v 3,292,734

v ROOF SCAFFOLD Filed Oct. 12, 196 4 INVENTOR Franz E Swanberg United States Patent 3,292,734 ROOF SCAFFOLD Franz F. Swanberg, 413 W. Broadway, Monticello, Minn. 55103 Filed Oct. 12,1?64, Ser. No. 403,026 Claims. ((31. 182-45) This invention relates to a device used to simplify building construction, and more particularly to a device that is temporarily secured to a gable, hip, peak, gambrel, mansard, or shed type of roof, when one is laying new or repairing old shingles.

Roofers and carpenters seldom have any satisfactory device for the placement or removal of shingles from a slanting roof. In fact they more often than not are forced to adapt makeshift methods that are not only hazardous to use, but also far from satisfactory since they are often in the way of the actual work being done on the roof, and thus require constant shifting about on the roof.

It is therefore the principal object of this invention to provide a roof scaifold that can be adapted to any downwardly sloping roof while one is working on the same.

Another object of this invention is to provide a roof scaffold that is so light in weight as to make it possible for one man to carry around from place to place.

Another object of this invention is to provide a roof scaflold that is adjustable as the work proceeds.

Another object of this invention is to provide a roof scafiold that is constructed from easily obtainable materials found in nearly any city or even on the farm.

Still another object of this invention is to provide a roof scaffold that can be taken apart in a minimum of time and made into a compact bundle for storage or transportation from job to job.

With the above more important objects and features in view and such other objects and features as may become apparent as this specification proceeds, the invention consists essentially of the arrangement and construction of parts as illustrated in the accompanying drawings, in which:

FIGURE 1 is a pictorial view of this invention in actual use.

FIGURE 2 is a sectional view of this invention taken substantially along line 22 \of FIGURE 1 and viewed in the direction indicated by the arrows.

FIGURE 3 is a sectional view of this invention taken substantially along line 3-3 of FIGURE 2 and viewed in the direction indicated by the arrows.

FIGURE 4 is a pictorial view of that portion of this invention that is enclosed within the arrowed ellipse and numeral 4 on FIGURE 1.

Like characters of reference are employed to designate like parts in the specification and throughout the several views of the drawing.

Referring now to the accompanying drawing in detail, this invention consists of the upper end 7 of the two parallel members or bars 8 as fully shown in FIGURE 1 of the drawing.

A hollow metal fitting including sleeve 9 which is rectangular in cross section, a detent 10 having a plurality of saw teeth is swingably mounted under the top 11 of the aforesaid sleeve 9 in order to grip and hold that one of the aforesaid members 8 that pass through the fitting, as clearly shown in FIGURES 2 and 3 of the drawing. A swingable arm 12 is secured to one side of the aforesaid hollow metal fitting 9. The arm is provided with two or more openings 13 through which nails 14 are placed and driven into the roof thereby providing a means of securing this invention to the aforesaid roof.

A second hollow metal fitting is slidably positioned on each bar. This second fitting includes a second metal sleeve 15 which is rectangular in cross section, a detent 10 having saw teeth swingably mounted within said second sleeve and a transverse metal sleeve 17 secured to the underside of the second metal sleeve 15. A cross bar 18 extends through the transverse metal sleeves.

All a person has to do in order to use this novel invention of a roof scaffold is to place the same on the roof in the position shown in FIGURE 1 of the drawing over the place where one desires to place shingles. The members 8 are now adjusted longitudinally, as desired, and the nails 14 are driven in place as has been previously stated.

While preferring the details of structure shown and described, it is to be understood that various changes and modifications may be resorted to without materially changing the function of the structure, and, therefore, I consider as within the spirit of the present invention such changes and variations as may fall within the scope of the appended claims.

Having thus described the invention, what is claimed as new is:

1. A roof scalfold comprising, two substantially parallel wooden bars, a hollow metal fitting for each bar, each fitting including, a metal sleeve, said sleeves fitting over corresponding ends of said bars, means to secure said ends in said sleeves, an arm swingably secured to each sleeve by a pivot which is transverse to said bars, means to secure said arms to a roof, a second hollow metal fitting for each bar, each second fitting including a second metal sleeve fitting over the corresponding bar to slide thereon, means to secure each second metal sleeve in any adjusted position on the corresponding bar, and a cross bar interconnecting said second metal sleeves.

2. The combination of claim 1 in which the wooden bars are rectangular in cross section and the metal sleeves are rectangular in cross section.

3. The combination of claim 1 in which the means to secure each second metal sleeve in any adjusted position is a detent having saw teeth pivotally secured within said sleeve.

4. The combination of claim 1 in which the means for securing each sleeve to the bar is a detent having saw teeth, said detent pivotally secured within said sleeve.

5. The combination of claim 1 in which a transverse sleeve is secured to the underside of each second sleeve and the cross bar extends through the transverse sleeves.

References Cited by the Examiner UNITED STATES PATENTS 852,141 4/1907 Sebree 182-45 X 2,814,533 11/1957 Van Horn 182-45 X FOREIGN PATENTS 540,763 5/ 1957 Canada.

REINALDO P. MACHADO, Primary Examiner.

Claims

1. A ROOF SCAFFOLD COMPRISING, TWO SUBSTANTIALLY PARALLEL WOODEN BARS, A HOLLOW METAL FITTING FOR EACH BAR, EACH FITTING INCLUDING, A METAL SLEEVE, SAID SLEEVES FITTING OVER CORRESPONDING ENDS OF SAID BARS, MEANS TO SECURE SAID ENDS IN SAID SLEEVES, AN ARM SWINGABLY SECURED TO EACH SLEEVE BY A PIVOT WHICH IS TRANSVERSE TO SAID BARS, MEANS TO SECURE SAID ARMS TO A ROOF, A SECOND HOLLOW METAL FITTING