US2880968A

US2880968A - Ice core drill

Info

Publication number: US2880968A
Application number: US629113A
Authority: US
Inventors: Louis R Titeca
Original assignee: Individual
Current assignee: Individual
Priority date: 1956-12-18
Filing date: 1956-12-18
Publication date: 1959-04-07
Anticipated expiration: 1976-04-07

Description

April 7, 1959 L. R. TITECA 2,880,968

ICE CORE DRILL Filed :Dec; 18, 1956 I NV EN TOR.

b02121: 2. fi iw A'ITD RN EYE United States Patent ICE CORE DRILL Louis R. Titeca, Darby, Mont.

Application December 18, 1956, Serial No. 629,113

2 Claims. (Cl. 255-69) This invention relates to core drills used primarily for cutting holes through ice such as in ice fishing and trapping, and in particular an elongated tube having arcuate cutting blades on the lower end with wire extended from the cutting blades and wrapped in spirals around the tube and with upper ends of the wires adjustably mounted on ends of a clamp extended across the upper end of the tube, the clamp providing mounting means for a brace or other rotating means.

The purpose of this invention is to provide an improved core drill in which the parts may readily be removed for sharpening and repairing.

Core drills have been provided in different types and designs and such drills are used for various purposes, however, conventional drills for this use are comparatively complicated and heavy and for trapping and fishing it is desirable to provide a core drill of relatively light weight and that may readily be assembled in the field. With this thought in mind this invention contemplates a core drill formed on an elongated tube with cutting blades mounted on one end, and a clamp mounted on the opposite end, in which spirally disposed wires extend from the cutting blades to the clamp, and wherein the clamp provides mounting means for a brace.

The object of this invention is, therefore, to provide an improved core drill for ice fishing and trapping that is readily assembled and manually operated.

Another object of the invention is to provide an improved core drill particularly adapted for use in the field in which the parts of the drill are readily repaired.

A further object of the invention is to provide an improved core drill which is of a simple and economical construction.

With these and other objects and advantages in view the invention embodies an elongated tube having arcuate cutting blades secured to the outer surface of one end with rivets or other fasteners, with a clamp secured in the end opposite to that on which the blades are positioned also with rivets or other fasteners, with spirally disposed wires extended from the cutting blades to ends of the clamp, and with a brace extended through and secured to the clamp with lock nuts and the like.

Other features and advantages of the invention will appear from the following description taken in connection with the drawing, wherein:

Figure 1 is a side elevational view of the improved core drill with parts broken away and showing a brace on the upper end of the drill.

Figure 2 is a sectional plan through the upper part of of the drill taken on line 22 of Fig. 1.

Figure 3 is a vertical section through the upper end of the drill showing the clamp for mounting upper ends of the spiral wires and also for attaching the brace to the drill.

Figure 4 is a vertical section similar to that shown in Fig. 3 showing a modification wherein a drill shank is secured in the clamp at the upper end of the drill with lock nuts.

Figure 5 is a view looking upwardly toward the lower end of the drill with the parts shown on an enlarged scale.

Referring now to the drawing wherein like reference characters denote corresponding parts the improved core drill of this invention includes a tube 10, which may be made of aluminum, or other suitable material, arcuate cutting blades 11 and 12 secured by rivets or other fasteners 13 to the outer surface of the tube 10, spirally disposed

wires

14 and 15 secured to the tube 10 with rivets or other fasteners 16 and 17 positioned at upper ends of the cutting blades 11 and 12, a clamp 18 having depending flanges 19 -and 20 at the ends with the flanges secured to the outer surface of the tube 10 with rivets or other fasteners 21, cars 22 and 23 extended from opposite ends of the clamp 18 and positioned to hold

eye bolts

24 and 25 to which upper ends of the

wires

14 and 15 are connected and a brace 26 having a threaded stud 27 that is secured in the horizontal bar of the clamp 18 with nuts 28 and 29 particularly as illustrated in Fig. 3.

The lower end of the tube 10 is provided with notches 30 and 31 that are positioned in registering relation with the

sharp cutting edges

32 and 33 of the blades 11 and 12, as shown in Figs. 1 and 5, and the lower ends of the

wires

14 and 15 which may be formed of round or square aluminum are provided with loops 34 that are positioned on the pins or rivets 16 and 17 and the upper ends are provided with eyes 35 and 36 that extend through eyes 37 and 38 of the

eye bolts

24 and 25. The shanks of the eye bolts extend through openings in the cars 22 and 23 and with nuts 39 and 40 threaded on the ends of the eye bolts tension in the wires may be increased or decreased.

The brace 26, for rotating the core drill may be of conventional design having a knob 41 at the upper end and a grip 42 on the U-shaped intermediate portion from which the shank 27 extends. With the shank threaded, as illustrated in Fig. 3 a special brace is provided whereas with the device provided with a threaded shank 43 having a conventional stud 44 on the upper end representing the end on the end of a conventional drill shank, a conventional brace may be used.

In the design shown in Fig. 4 the shank 43 is secured in a clamp 45, similar to the clamp 18 with

lock nuts

46 and 47 and flanges 48 and 49 on the ends of the clamp are secured to the wall of a tube 50 with suitable fasteners 51.

With the parts assembled as illustrated and described the tubular core drill may be rotated by the brace to cut an opening through ice and with the diameter of the tube increased or decreased a hole of any suitable size may be formed.

With the parts formed in this manner wires and also the cutting blades and mounting elements may readily be removed and replaced.

Although it is suggested that the parts may be made of aluminum, it will be understood that the parts may be made of any suitable material.

It will be understood that modifications, within the scope of the appended claims, may be made in the design and arrangement of the parts without departing from the spirit of the invention.

What is claimed is:

1. In a core drill, the combination which comprises an elongated tube, angularly disposed blades with sharp cutting edges mounted on one end of the tube, the tube having notches in the wall thereof positioned in registering relation with the sharp cutting edges of the blades, a clamp having depending flanges thereon that are secured to the outer surface of the tube, ears extended from the opposite edges of said flanges, said clamp being mounted on the end of the tube opposite to that on which the Patented Apr. 7,

chips cut by the blades upwardly to the upper end of a hole cut by the drill, eye bolts connecting upper ends of the spiral members to ears of the clamp, rivets connecting lower ends" of the spiral members to the tube at points following the cutting blades and means for attaching a brace to the clamp.

In acore drill, the. combination which comprises an elongated tube, angularly disposed blades with sharp cutting edges mounted on one end of the tube, the tube having notches in the wall thereof positioned in registering relation with the sharp cutting; edges of the blades, a clamp having depending flanges thereon that are setcured' to the outer surface of the tube, ears extended 15 1,857,585

from the opposite edges of said flanges, said clamp being mounted on the end of the tube opposite to that on which the blades are positioned, spiral members extended from the bladesaround the tube; eye bolts connecting upper ends of the spiral members to ears of the clamp, rivets connecting lower ends of the spiral members to the tube at points following the cutting blades and a brace having a threaded shank with lock nuts thereon for rotating the tube.

References Cited in the file of this patent UNITED STATES PATENTS 220,572 Burgess Oct. 1, 1879 286,599 Fitzgerald Oct. 16, 1883 675,720 Deemeri June 4, 1901 Brooks May 10, 1932 2,666,623 Johnson Jan. 19, 1954