US1163698A - Rake-tooth point. - Google Patents

Description

H. A. SMITH.

RAKE TOOTH POINT.

APPLICATIGN FILED JULY 23, 1912.

1,163,69. Patented Dec. 14, 1915.

COLUMBIA PLANOURAPH c0.. WASHINGTON, n. c.

HENRY ADALBERT SMITH, OF ELGIN, ILLIJOIS.

RAKE-TOOTH EOINT.

Specification of Letters Patent.

Patented Dee. 1 1-, 1915.

Application filed July 23, 1912. Serial No. 711,175.

To all whom it may concern.

Be it known that I, HENRY ADALBERT SMITH, a citizen of the United States, residing at Elgin, in the county of Kane and State of Illinois, have invented new and useful Improvements in Rake-Tooth Points, of which the following is a full, clear, concise, and exact description, reference being had to the .accompanying drawing, forming a part of this specification.

My invention relates to improvements in rake-tooth points, and has for its object the production of improved means whereby such rake-tooth points of normally thin material may be held firmly in place on any suitable support without danger of the ends curling upwardly or projecting outwardly, when a screw or spike fastener is put through them and forced home to place.

A further object is the production of improved means for accomplishing this result that will eliminate all danger of loosening the rake-tooth point, and also give greater strength to the completed article in connection with which the rake-tooth point is used.

A further object is the production of a device that is easily made, of simple construction, and one that is not liable to get out of order.

These and such other objectsas may here inafter appear are attained in my device, an embodiment of which is illustrated in the accompanying drawings, in which Figure 1 represents a side elevation of a rake-tooth point embodying my improvement; Fig. 2 represents a back plan view of Fig. 1; and Fig. 3 represents a sectional view on the line 83 of Fig. 2, looking in the direction indicated by the arrows.

Like numerals of reference indicate like parts in the several figures of the drawing.

Referring now to the drawings, a represents a rake-tooth point secured in place on the rake-tooth 5. The tooth proper comprises a turned over end 0 adapted to fit over the end (Z of the rake-tooth. The bearing surface of the point is shown as slightly curved as at c and adapted to slide over the ground when in operative position. The rake-tooth point extends upwardly, forming a wing member f adapted to fit closely against the under face of the tooth b. The rake-tooth point is secured rigidly in place on the tooth in any suitable manner, as for instance, a screw 9 passing through an opening it in the wing member Surrounding this opening it is a raised or embossed portion 7', sloping sharply downward toward the point, as shown at is, and sloping upwardly toward the extreme end of the wing member by a more gradual slope, as shown at Z.

It will be noted that the bottom edge of the metal surrounding the screw hole it is above the plane of the rake-tooth point itself, as shown at m. By this construction it will be noted that when the rake-tooth point is secured in place and the screw screwed into place it forces the metal downwardly until the surrounding metal m presses tightly against the body of the tooth. The head of the screw fits snugly against the sides of the embossed portion and is flush with, or within, the top of the embossing, thereby leaving no projection to gather obstructions as the rake is used. Ordinarily in securing rake-tooth points in place when the screw is turned home or any extra pressure is applied there is a tendency to raise the extreme end of the extension of the raketooth point. By my construction, however, the pressure against the sides of the embossed portion simply forces the entire end more firmly against the supporting member. A construction of this kind acts as a strut in giving greater strength and rigidity to the entire structure, as well as preventing the bending or buckling of the end. It will be noted that in the construction shown the slope or strut member is extended nearly to the end of the rake-tooth point toward the upper end, while at the lower end a much shorter strut is provided, as at that portion of the rake-tooth point there is less liability of the metal buckling.

While I have shown a very simple structure, it is yet one that is very efficient and can be used in a multitude of cases, in fact, in any case in which it is necessary to secure a thin shape in place over a supporting medium.

I claim z- As a new article of manufacture, a pressed steel rake-tooth point, one end of which is provided with a screw hole, with an eccentric embossing surrounding said hole, said embossing tapering down to the level of the main body of the rake-tooth In witness whereof, I have hereunto subpoint, the embossing metal about said hole scribed my name in the presence of two witbeing raised above the level of the plane of nesses.

the lower face of the rake-tooth point, itself, HENRY ADALBERT SMITH. 5 the length of said taper toward the end be- Witnesses:

ing greater than the taper toward the center MABEL REYNOLDS,

of the rake-tooth point. C. E. KANE.

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

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