US528415A

US528415A - John danielson

Info

Publication number: US528415A
Authority: US
Publication date: 1894-10-30
Anticipated expiration: 1911-10-30

Description

(No Mbde'L) 1, DANIELSON.

. SAW.

Pa ented oa -I30, 1894.-

' ject of the UNITED STATES JOHN DANIELSON, OF ALHAMBRA SPRINGS, MONTANA.

SAW.

SPECIFICATION forming part of Letters Patent No. 528,415, dated October 30, 1894. Application filed A ril 21.1893. Serial NoA'ILBBO. (lio model.)

To all whom it may concern:

Be it known that I, JOHN DANIELSON, a sub- King of Sweden and Norway, an a resident of Alhambra Springs, county of J c ferson, State of Montana, have invented a new and useful Improvement in Saws, of which the following is a specification.

Long saws are necessary for use in cutting up the large trees utilized in lumbering, &c., and several inventions have been made to enable one man to advantageously use them. In most cases more or less machinery is used.

My invention supplies a saw and simple frame that enables one man to handle, successfully, the longest saw necessary, with ease and in all positions.

It consists of a wooden spring pole,having a steel stiifening spring at the center, and sprung upon the saw blade by means of metal sockets.

Figure I shows side elevation of whole apparatus. Fig. II shows plan view of steel spring. Fig. III shows end elevation of clip for holding spring. Fig. IV shows perspective of end socket. Fig. V shows perspective of handle socket.

Similar letters refer to similar parts in all the drawings.

The metal end-socket A end of the saw B by means of the slot at and bolt 1). The metal handle-socket G is likewise attached to the saw B, by means of the slot 0 and bolts (1 d, and is bent into a U shape to receive the wooden handle D. Into these sockets A and G are sprung the ends of the spring pole E. Attached to the under side of the spring pole E by means of the clips F F, is the steel spring clips F F are held in position by the screws f f. On the upper side of the spring G are two small lugs or flanges g g which embrace the pole E and prevent the spring G from slipping sidewise. One end of this spring G is threaded and carries the nut It. By screwing this nut it against the clip F, the spring may be tightened. The advantages of this spring frame are many.

is attached to one 4 It allows one man to use the usual two-man saw with ease. The trouble of vibration,common to one-man saws, is entirely obviated. The usual thickening of the back to stiifen the saw is unnecessary, and a very thin saw may be used, thinner at the back than at the cutting edge and having very little set. It is easily carried through the timber, and the bow affords a new handle when the cut is deep in the log, thus doing away with much stooping. In case of breaking o the bow, a new one can be readily adjusted. In case of pinching of the log above the saw, no wedges need beused, as the end bolt can be quickly removed and the saw withdrawn through the cut.

and by the addition of the steel spring, keeps the necessary tension for a long time.

With this simple mechanism, one man can cut nine cords of wood in the timber, in the same time and with greater ease than the same man can out three cords, with the ordinary one-man saw.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. In a saw, the combination of the saw blade and the spring frame,-with the metal stiffening spring, placed centrally on the under side of the frame,substantially as shown and described.

2. In a saw, the combination of the saw blade and the spring frame, with the metal stiffening spring fastened to the frame by the clips ff and having the lugs g g and one threaded end carrying the nut h, substantially as shown and described.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 7th day of April,

JOHN DANIELSON.

Witnesses:

' EDWARD 0. Russian,

ALFRED LUAHR.

The pole is preferably made of hickory,