US2377918A

US2377918A - Scarifying tool

Info

Publication number: US2377918A
Application number: US558015A
Authority: US
Inventors: Oliver P Arnette
Original assignee: Individual
Current assignee: Individual
Priority date: 1944-10-10
Filing date: 1944-10-10
Publication date: 1945-06-12
Anticipated expiration: 1962-06-12

Description

June 12, 1945.

Filed Oct. 10. 1944 W v f ?6 z 5 A? fl ta INVENTQR.

Patented June 12, 1945 UNITED STATES PATENT OFFICE SCARIFYING TOOL OIiverR' A rnette, Hattiesb'urg, Miss.

Application October 10, 1944,.Serial No. 558,015 scams. (01.30-121) This invention relates to a scarifying tool designed primarily forum in producing cuts or excavations inturpentine producing trees.

An object of the invention is to provide a tool having a head of novel construction, which is readily reversible and renewable, and which serves not only to chip a tree but also to pull gum from the tree surfaces and thereby expedite extrusion or flow of the turpentine.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention consists of certain details of construction and combinations of parts hereinafter more fully described and pointed out in the claims, it being understood that changes may be made in the construction and arrangement of parts Without departing from the spirit of the invention as claimed.

' In the accompanying drawing the preferred form of the invention has been shown.

In said drawing:

Figure 1 isa side elevation of the tool, the handle being broken away.

Figure 2 is a top plan view of the structure as shown in Figure 1.

Figure 3 is-a section on line 3-3, Figure 1.-

Figure 4 is a section on line 4--4, Figure 1.

Figure 5 is a section on line 5-5, Figure 1.

Referring to the figures by characters of reference, I designates the flat portion of a blade, the sides of which are oppositely bowed, as shown at 2, and merge into a channelled portion '3. The flat and side portions I and 2 have their edges sharpened as indicated at 4, and the channelled portion 3 is proportioned to embrace and fit snugly against the side and bottom surfaces of the angular end 5 of a handle 6. The top of this end portion 5 is preferably inclined, as indicated at I, and at the upper end of this inclined surface the handle 6 is flattened longitudinally, as shown at 8, this flattened portion terminating in a notch or recess 9.

For the purpose of holding the cutting head assembled with the tapered end of the handle, there is provided a strap [0, which bears against the bottom of the tapered portion and is provided at one end with a yoke H, which embraces and tightly grips the adjacent portion of the handle 6. The other end of the strip is provided with a solid tapered toe l2, against which the tapered end of the handle abuts, and from this toe there is extended an upper strap 13 adapted to bear on the inclined surface I. This top strap l3 merges into a tongue l4, adapted to fit tightly on the flattened portion 3 of the handle and the tongue, inturn, has the'node or projection 15 designed to snap into the notch or recess 9.

In assembling the parts the channelled por tion 3 of the head is placed on the tapered end of the handle so as to straddle it, as shown in Figure 4. The yoke II is expanded so as to slip backwardly along this channelled portion until it is brought ultimately into clamping engagement with the handle 6. During this operation the tongue 14 and the inclined portion l3 are inserted into the head until the inclined portion bears against the surface I and the node or projection l5 snaps into the notch 9. Obviously, all parts of this fastening device are formed of strong resilient material. With the parts assembled as described,.the channelled portion 3 is held securely to the handle with the cutting edges 4 positioned where they can be used effectively for chipping into a tree. This head can also be used for pulling gum off of the surfaces of the scarred portion of a tree. Should it be found desirable to reverse the head, it is merely necessary to first remove the holding device, then reverse and replace the head, after which the holding device can be replaced. The same procedure is to be followed when a new head is to be substituted for the old one.

The entire device is very simple, compact and efficient, and is advantageous because of the form of edges, the manner in which it is attached, and the reversibility of the head.

While the tapered end of the handle has been shown of substantially rectangular cross-sectional contour, it is to be understood that it can be made of any shape other than circular crosssectional contour.

What is claimed:

1. A scarifying tool including a handle having an angular tapered end, a cutting head including a channeled portion proportioned to embrace and snugly engage said end, and a blade bridging the channelled portion and spaced from the handle, and means extending through the head and embracing the head and handle for detachably securing the head to the handle.

2. A scarifying tool including a handle having an angular tapered end, a eutting head including a channelled portion proportioned to embrace and snugly engage said end, and a blade bridging the channelled portion and spaced from the handle, a strap extending through the head for engaging the tapered end of the handle, an element integral with the strap and detachably engaging the outer surface of the channelled portion, a yoke carried by said element for detach- 4. In a scarifying tool a handle having a tap ered angular end, diverging integral clamping members detachably embracing and extending longitudinally of said end, means at the free ends of the clamping members for detachably engaging the handle to hold the members thereto, and a cutting head gripped between said end and one of the members and bridging and spaced from the other member, said member including a channelled portion in which the end of the handle is seated, said portion being gripped between said end and one of the clamping members, and a blade having opposed side portions connecting it to the sides of the channelled portion, said blade and its side portion having their edges sharp.

5. In a scarifying tool a handle having a ta pered angular end,'diverging integral clamping members detachably embracing and extending longitudinally of said end, means at the free ends of the clamping members for detachably engaging the handle to hold the members thereto, and

v a reversible cutting head gripped between said end and one of the members and bridging and spaced from the other member, said members including a channelled portion in which the end of the handle is seated, said portion being gripped between said end and one of the clamping members, and a blade having opposed side portions connecting it to the sides of the channelled portion, said blade and its side portions having their edges sharp.

OLIVER P. ARNE'ITE.