US1327566A

US1327566A - Tool

Info

Publication number: US1327566A
Application number: US265271A
Authority: US
Inventors: Morris Edward
Original assignee: Individual
Current assignee: Individual
Priority date: 1918-12-04
Filing date: 1918-12-04
Publication date: 1920-01-06
Anticipated expiration: 1937-01-06

Description

rd Morris Show a,

EDWARD MORRIS, 0F OAKLAND, CALIFORNIA.

TOOL.

Specification of Letters Patent.

Patented J an. 6, 1920.

Application filed December 4, 1918. Serial No. 265,271.

To all whom it may concern Be it known that I, EDWARD MonRis, a citizen of the United States, residing at Oakland, in the county of Alameda and State of California, have invented new and useful Improvements in Tools, of which the following is a specification.

This invention has reference to improvements in tools and the principal object of the invention is to provide a combined reamer and countersink more particularly adapted for truing the rivet holes of ship plates and the like.

Another object of the invention is to make the countersink tool removable so the same can be sharpened, with improved means for holding the same in position.

The invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claim.

In describing my invention in detail, ref erence will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a view of the complete tool;

Fig. 2 is a view of the countersink;

Fig. 3 is a. part longitudinal section;

Fig. 4 is a cross section on line L-i of Fig. 3.

Fig. 5 is a view of a modification.

In these views 1 indicates the reamer which consists of the shank 2 and the drill part 3. This drill part may be made in any desired way and forms no part of my invention. The shank 2 is provided with. an elongated slot 4, the lower end of which is a slight distance above the drill part. The end wall of this part of the slot is of inverted V-shape, as indicated at 5, for a purpose to be hereinafter described. The countersink tool 6 is of substantially V-shape with its edges beveled in opposite directions to provide cutting edges and the faces slotted as at 7 adjacent said edges to facilitate the cutting action. The small or lower end of the tool 6 is provided with a substantially V-shaped recess 8, but one part of the V is flattened somewhat so that it may be passed over the V-shaped wall at the lower end of the slot. In this way the countersink tool may be passed into the slot but cannot be passed entirely therethrough owing to the unfiattened wall engaging with the bottom of the recess and thus preventing further movement of the tool. The tool is held within the slot by the key 9 engaging the space between the upper end of the slot and the top of the tool. If desired I may pass the key through the hole 10 passing through the shank at right angles to the slot 4. In this case the key will engage a slot 10 in the top of the tool.

In the modification shown in Fig. 5 the tool is held in place by a ring 12 engaging the slots 13 in the top of the tool. The ring is engaged by a lock nut 14: screwed on the shank.

It will thus be seen that after the hole has been enlarged by the reamer the countersink tool coming in contact with the plate will countersink the same. It will also be seen that the countersink tool may be removed so that the same may be sharpened or replaced by a new one.

As before stated my invention is mainly useful for the enlarging of the holes in ship plates; The rivet holes are punched in the plates in the shop and when the plates are placed together the holes seldom register so that it is necessary to ream out the holes be fore the rivet can be put in place. These holes are'then countersunk so as to provide a head on the rivet. By my tool the plates are reamed and countersunk at the same time and by the same tool.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claim.

Having described the invention, what I claim is 1 A tool of the class described comprising a reamer having a slot in its shank, the lower end of said slot having an inverted tilted V- shaped wall, a countersinktool engaging in said slot and having a recess in its lower end shaped to fit so that it will pass over the V- shaped wall and a key for holding the tool in said slot.

In testimony whereof I affix my signature.

EDWARD MORRIS.