US1026097A - Adjustable and collapsible shingling-stool. - Google Patents

Description

J. G. LEWIS. ADJUSTABLE AND GO LLAPSIBLE SHINGLING STOOL.

APPLICATION FILED MAR.1 1, 1910.

1,026,097. Patented May 14, 1912.

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1,026,097. Patented May 14, 1912.

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JACKSON GARFIELD LEWIS, OF NEW WINDSOR, COLOR-ADO.

ADJUSTABLE AND COLLAPSIBLE SHINGLING-STOOL.

roaches.

Specification of Letters Patent.

Application filed March 11, 1910.

Patented May 14, 1912.

Serial No. 548,551.

To all whom it may concern Be it known that Ldaoxson GARFIELD Lnwrs, a citizen of the United States, residing at New Windsor, county of Weld, and State of Colorado, have invented certain new and useful Improvements in Adjustable and Collapsible Shingling-Stools; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to a stool adapted for use on slanting roofs of buildings during the operation of shingling.

The construction, generally speaking, consists of two hinged members which are adjustable by means of a connecting link, one end of which is slidably connected with one of the members, whereby the angle of the two members may be regulated at will, depending upon the pitch of the roof, in order that one of the members, namely, that forming the top of the stool, may be kept in the horizontal or approximately horizontal position.

The stool is also collapsible, since the aforesaid link connecting the two members is jointed, to permit the members to fold together when not in use. The edge of each member which engages the roof is formed sharp, the upper or top member having its roof-engaging edge turned downwardly for the purpose. By virtue of this feature, the stool indents the roof and is self retaining thereon, since the weight of the user forces the sharpened portions of the stool into the roof.

Having briefly outlined my improved construction, I will proceed to describe the same in detail, reference being made to the accompanying drawing, in which is illustrated an embodiment thereof.

In this drawing: Figure 1 is an edge view of a roof showing my improved shingling stool in position thereon, the stool being shown in side elevation. Fig. 2 is a detail view of the stool, the parts being shown on a larger scale and the slant of the roof being indicated by a dotted line. Fig. 3 is a central section of the stool shown in the collapsed position. This section is taken on the line 33, Fig. 6, the'scale being approximately the same as in Fig. 2. Fig. 4 is a fragmentary view of the link-joint looking in the direction of arrow 4, Fig. 2, the parts being shown on a larger scale. Fig. 5 is a sect-ion taken on the line 55, Fig. 4. Fig. 6 is a top plan View of the structure shown in the extended position or when both members lie in the same plane.

The same reference characters indicate the same parts in all the views.

Let the numerals 5 and 6 designate the two members of the stool which are hinged together as shown at 7 The member 5 consists of two parallel bars 8 connected together by slats 9, while the member 6 includes two bars 10 connected by cross pieces 11. The two bars 10 of the one member are hinged to the bars 8 of the other member by pins 12 secured in place by cotters 13. The free extremities of the bars 6 are toothed and sharpened as shown at 14; while the free extremities of the bars 8 are bent at right angles to the bodies of the bars, and the depending portions 15 are sharpened as shown at 16 to indent the shingles 17 of the roof 18. In the drawing 19 designates a rafter and 20 the boards forming the sheeting to which the shingles are applied. The two members of the stool are connected by a link 21, composed of two members 22 and 23, p-ivotally connected by a rivet 24. The link member 22 overlaps the member 23 beyond the rivet 24: as shown at 25 and carries a pin 26 adapted to enter a recess 27 formed in the upper edge of the link member 23, whereby the two link members are locked in the alined position and prevented from breaking downwardly. Mounted upon the link member 22 is a leaf-spring 28 secured to the link at one extremity as shown at 29. This spring is bow-shaped at one extremity as shown at 30 and has an extremity 31 adapted to enter registering openings 32 and 33, formed in the respective link members. The member 23 is beveled above the opening 33 whereby the extremity 31 of the locking spring moves automatically into the locking position when the two link members are thrown into alinement.

One extremity of the jointed link 21 is through a slot 39 formed in a graduated plate 40 whose extremities are secured to the cross bars 12 of the member 6 as shown at 41. The graduated edge of this plate has numbers formed thereon to indicate the pitch of the roof and the consequent angle of the stool members in order to harmonize with such pitch. The shank 38 of the lug is provided with a shoulder 42 which engages the slotted plate on one side and a washer 43 which engages it on the opposite side, the last named Washer being provided with a pointer tooth 44 and held in place by a wingnut 45 which serves to lock the two members of the stool in the adjusted position.

When my improved device is in use, it is set at the pitch or slant of the roof, (see Figs. 1 and 2). This is done by loosening the wing-nut 45 and sliding the lug 37 up or down upon the slotted plate until the proper adjustment is obtained. The device is then ready for use and the sharpened teeth of its roof-engaging edges indent the shingles of the roof by virtue of the pressure of the weight of the user. When the device is not in use, it may be folded to the position shown in Fig. 3 by pulling outwardly on the bow-shaped extremity 30 of the spring 28 until the extremity 31 of the locking spring is disengaged from the orifice 33 of the link 23. The link members 22 and 23, together with the members 5 and 6 of the stool, are allowed to fold to the position shown in Fig. 3. However, in order to accomplish the folding operation the wingnut should be loosened to allow the lug 37 to slide downwardly to the bottom of the slot 39.

When the device is in use it is placed in any convenient position upon the roof and the user sits thereon, the upper member 5 of the stool forming a substantial horizontal support for his body. This top portion of the stool may be, and usually is in actual practice, inclined slightly downwardly from the enlarged oint 7, thus making the users position more secure.

It will be understood that a portion of the roof along the lower edge thereof is first shingled from the scaffolding, not shown, erected around the building. The stool is then placed upon this shingled portion and is afterward used continuously until the shingling is completed, being easily moved from place to place by the user.

Having thus described my invention, what I claim is:

A shingling stool composed of two members hinged together, one of which is adapted to form a shelf, while the other is adapted to form a prop for the shelf, the prop member being provided with an elongated graduated slot, a link composed of two members pivotally connected at one extremity with the shelf member, a leaf spring, one extremity of which is secured to the link, its opposite extremity being bow-shaped and adapted to .enter a registering opening formed in the respective link members, a lug pivotally secured at the opposite extremity of the link, the said lug being slidably mounted in the graduated slot of the prop member, and means for holding the said lug against movement in the slot, in the desired position of adjustment, substantially as described.

In testimony whereof I afiix my signature in presence of two witnesses.

JACKSON GARFIELD LEWIS.

Witnesses:

A. J. OBRIEN, ELIZABETH. BOWEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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