US820449A - Rake. - Google Patents

Description

PATENTED MAY 15, 1906.

No. 820,449. v

-H. VESPERMAN'.

RAKE.

APPLICATION, EILBD FEB. 3. 190a.

MLW

HENRY VESPERMAN, OF STEUBENVILLE, OHIO.

RAKE.

Specification of Letters Patent.

Eatenteoi- May 15, 1906.

Application filed February 8, 1906. Serial No. 299,262.

To all whom, it may concern:

Be it known that I, HENRY VESPERMAN, a citizen of the United States, residing at Steubenville, in the county of Jefierson and State of Ohio, have invented certain new and useful Improvements in Rakes, of which the fol lowing is a specification.

This invention relates to improvements in hand-operated lawn and garden rakes; and the especial object of my improvements is to produce a rake that can be cheaply manufactured from rolled or pressed metal and in which the teeth can be easily inserted and when in position will be securely held against displacement.

In the accompanying drawings, which form a part of this application, I have illustrated and will hereinafter particularly describe a preferred adaptation of my invention.

In said drawings, Figure 1 shows in perspective a rake head constructed according to my invention with a part of the handle attached thereto. Fig. 2 is a top plan view of the rake-head minus its teeth. Fig. 3 is a cross-section through the rake-head and one of its teeth on line 3 30f Fig. 1. Fig. 4 is an elrivation of one of the teeth of my improved ra re.

Referring to the details of the drawings, (1 represents the back portion of my rake-head, which is formed from a bar of flat metal, the ends of which are out tapering and bent down at right angles to form the end teeth a. In the upper side of the back of the head are countersunk by suitable dies depressions M, which are spaced apart, and at the ends of each depression rectangular holes 0, are punched through the back to receive the teeth to be described.

Each tooth is formed from a bar of metal rectangular in cross-section, which is bent at right angles at two points to form the parallel teeth I) and the connecting back portion 1). On the outer face of the teeth are formed projecting tapering ribs 6 the upper ends of which form squared shoulders 6 from which the ribs taper inwardly until merged in the lower part of the teeth. These ribs are rolled or pressed on the bar before it is bent.

0 represents the iron coupling which con nects the handle d with the rake-head, and same forms no part of this invention.

In assembling the parts composing my improved rake-head the member a, constructed as described, is heated until the metal expands suificiently to permit the teeth to be driven into place, the ribs b passing through the holes a and the portion 1) of the tooth fitting snugly the depressions a When the back bar cools, the shrinkage of the metal will result in a close fit between the teeth and the bar, and the former will not only be held against displacement, but Will be rigidly held, as the back bar a is clamped between the shoulders b and the part b of each tooth. Furthermore, the back I) of the tooth being seated in a depression having walls on three sides and both ends, any tendency of the tooth to Work loose will be met by the resistance of such walls. The teeth are set ed gewise to the front and rear sides of the head, thus bringing the strain incident to ordinary use in line with their greatest diameter, and the ribs b serve as sti'ffeners for the teeth against lateral strain applied thereto.

I claim 1. In a rake-head, a bar having openings therethrough and U-shaped teeth extending through said openings from the upper side of said bar, said teeth having projections thereon, the cross-diameter of each tooth and its projection being greater than the diameter of the openings, for the purpose described.

2. In a rake-head, a bar having depressions in its upper side and having openings at the ends of said depressions, and U-shap'ed teeth having their bent portions seated in said depressions, and their tines extending through said openings, said tines having projections bearing against the under side of said bar adj acent to said openings.

3. In a rake-head, a bar having openings therethrough, and U-shaped teeth having tines extending through said openings, said tines having longitudinal projections bearing against the under side of the bar adjacent to said openings.

4. In a rake-head, a bar having openings I therethrough, and teeth extending through said openings, said teeth consisting of a metal bar bent into U shape and having tapering ribs on its outer sides, substantially as described.

5. In a rake-head, a bar having rectangu- IOO larvrecesses in its upper face and rectangular I In testimony whereof I aflix my signature holes at the ends of said recesses, {geethrectan- I in presence of tWo Witnesses.

gular in cross-section, having a ack portion fitting said recesses, and having tines fitting HENRY VESPERMAN' 5 said holes, each tine having a shouldered and tapering rib on its outer face, for the purpose set forth.

Witnesses MARGARETHE VESPERMAN, EDITH VESPERMANQ

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