US2368420A - Grafting implement - Google Patents

Description

a 30, 1945. i G. M. MASUNAGA 2,368,420

GRAFTING IMPLEMENT Filed Aug. 5, 1943 2' Sheets-Sh'et 1 v Inventor Elem? Maiszw/flmszm a a Jan. 30, .1945. G. M. MASUNAGA 2,368,420

GRAFTING IMPLEMENT Fil ed Aug. 5, 1943 2 Sheets-Sheet 2 /y I Inventar Q lerzrz/Mmswofimsza 0/ Z0 2/ v cum W 18m I rate the same;

Patented Jan. 30, 1945 j I a I I 2,368,420

Masuo' Masuna gajwa hiawa. Territory otHawaii J Application August 5, 1943, Serial No. 497,481

2 Claims.

This invention relates to new and useful immovements in grafting devices and more particularly to a device for facilitating the cutting of scions for grafting. V

The principal object of the present invention is to provide a grafting tool whereby in cutting scions a perfectly straight cut can be obtained and this is necessary in order to perform a satisfactory grafting job. I

. the implement.

Figure 2 is a side elevational view of the implement looking at the opposite side from that shown in Figure 1- Figure'3 is a top planview of the implement.

Figure 4 is a vertical section on the line 4'4 of Figure 1.

Figure 5 is a section on the line 55 of Figure 1.

Figure 6 is a perspective viewof the blade.

Figure 7 is a section on the line of Figure 1. II I Referring to the drawings wherein like numerals designate like parts, it can be seen that the implement includes an elongated supporting bar 5 having a clamp structure 6 at each end portion thereof. Each clamp is generally reangle with respect ferred to by numeral 6 and'includes a pair of jaws I, 1 (see Figure 4) hingedly secured as at 8 to'the bar 5 and each having a resilient lining 9 at its inner side. A clamp screw It) serves to draw the upper ends of the jaws together or sepa-' The purpose of these clamps is to firmly hold the scion in place. g

A lug I I on one end of the bar 5 has a threaded opening therein for a clamp screw 12 and this clamp screw is operative against one end of the scion. l I 1 Depending from the bar 5 is a semi-circular shaped guide l3 having a substantially 90 degree slot l4 therein, and depending from the intermediate portion of the bar 5 is a lug 15 which has a threaded opening therein to receive a screw [6 which passes through a slot l1 in a cutter bar securing elements 22 can be disposed for securing the blade to the upper end of the bar. Thus it can be seen that the blade projects laterally of the bar l8,this being readily seen in Figure 3.

Where the slot l1 intersects the slot M, a bolt 23 extends therethrough and is equipped with a nut 24. A cap plate 25 straddles thesemi-circular shaped member l3 and. the bolt 23 also passes through this cap 25. A set screw 26 is disposed through the cap and can be screwed against one edge of the semi-circular member I3.

The lower end of the cutter bar [8 has a han-. I dle 21 whereby the cutter bar I8 can be actu- 'ated.

An elongated blade 28 is secured to the unslotted portion of the semi-circular shaped guide 13 and can be used for trimming branches and the like off of scions.

It can now be seen that with the scion properly held in position by the clamp 6 and the clamp 12, the cutter bar 18 can be adjusted to the desired angle and when this has been satisfied, the

bar l8 can be jerked downwardly and the blade 19 will cut through the scion at the desired angle, making a perfectly straight cut.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

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

I 1. A device for cutting scions for grafting, comprising a horizontal elongated supporting bar, spaced clamps carried, by said bar for securing a scion on the latter'parallel with the same, an

- connecting said cutter bar to said supportingbar l8, this cutter bar l8 at its upper end being proarcuate guide rigid withand depending from one side of said bar, an inclined cutter bar ex- I tending across said supporting bar and said guide and projecting above the supporting bar between said clamps, a cutter blade carried by the upper end of said cutter bar and projecting laterally from the latter over said supporting bar, a handle on the lower end of said cutter bar, means for pivotal movement relative to the latter about an axis coincident with the center of curvature may be severed between said clamps by said 'cutter blade at a desired angle upon pulling the cutter bar downwardly.

, 2. A device for cutting scions for grafting, comprising a horizontal elongated supporting bar, spaced clamps carried by said bar for securing a scion on the latter parallel with the same, an arcuate guide rigid with and depending from one side of said bar and having an arcuate slot therein, an inclined cutter bar extending across said supporting bar and said guide and projecting above the supporting bar between said clamps, a cutter blade carried by the upper end of said cutter bar and projecting laterally from the latter over said supporting bar, a handle on the lower end of said cutter bar, said cutter bar having an elongated longitudinal slot therein, a lug rigid with said supporting bar, a screw extending through said slot of the cutter bar and threaded into said lug for connecting said cutter bar to said supporting bar for pivotal movement relative to the latter about an axis coincident with the center of curvature of said arcuate guide and for longitudinal slidi'ng movement relative to the supporting bar, and a screw extending through theslot of said cutter bar and adjustable in the slot of said guide to vary the angle of the cutter bar relative to the supporting bar, whereby the scion may be severed between said clamps by said cutter blade at a desired angle upon pulling the cutter bar downwardly.

GLENN MASUO MASUNAGA.

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