US327776A

US327776A - eisenhardt

Info

Publication number: US327776A
Authority: US
Publication date: 1885-10-06
Anticipated expiration: 1902-10-06

Description

(No Model.) 2 Sheets-Sheet .1.

G. EISENHARDT.

HANDLE FOR GROSSGUT SAWS.

No. 327,776. Patented Oct. 6, 1885,

Ffi- 2.

(No Model.) 2 Sheets-Sheet 2.

0. EISENHARDT.

HANDLE FOR GROSSGUT SAWS. No. 327,776. Patented Oct. 6, 1885.

07mg fi hwy-Wi 5W tharrnn Starts CHRISTOPHER EISENHARDT, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO HAMILTON DISSTON, HORACE G. DISSTON, XVILLIAM DISSTON, AND JACOB S. DISSTON, ALL OF SAME PLACE.

HANDLE FOR CROSSCUT-SAWS.

SPECIFICATION forming part of Letters Patent No. 327,776, dated October 6, 1885.

Application filed May 15, 1885.

To all whom, it may concern:

Be it known that I, CHRISTOPHER ElSEN- HARDT, a citizen of the United States, and a resident of Philadelphia, Pennsylvania, have invented certain Improvements in Handles for Crosscnt-Saws, of which the following is a specification.

My invention relates to certain improvements in crosscut-saw handles, the object of the'invention being to produce a handle capable of eilicient use in different positions with respect to the saw-blade, as more particularly hereinafter set forth.

In the accompanying drawings, Figurel is a side view of my improved handle attached to the rear end of a saw-blade, a portion of the latter being shown. Fig. 2 is a perspective View of the handle attached to the rear end of a saw-blade, but at right angles to the latter, as when the saw is to be used in cutting down trees. Fig. 3 is a side View of my handle attached to one end of a saw-blade, at the top thereof, as where the work to be done is that of sawing fallen trees, and Fig. 4 is a perspective View of the handle.

Referring to Figure 1, Ais the handle, and B the saw-blade, the two being connected by a well-known clamp, D, consisting in the pres ent instance of two metal plates or washers, c 9, between which the handle is grasped, and a longitudinally slotted bolt, (Z, passing through the said grasping-washers and handle, and having at its outer end eyes, through which and through an aperture in that part of the saw-blade which is received within the slot of the bolt passes a pin, (2. The other end of said bolt d has a screw-thread for the reception of the thumb-nut, the tightening of which against the washer g secures blade and 0 handle rigidly together.

For the slotted bolt (2 a bolt having at its outer end a hook to pass through the eye in the blade may be substituted.

\Vasher 0, against which the rear or top edge of the saw-blade bears, is provided, as usual, with two central grooves at right angles to each other, the blade finding its bearing in one or other of these grooves, accord- Serial No. 165,588. (No model.)

ing to the position in which the handle is at tached to the blade.

The handle is formed as follows: It has a straight portion, 0, by which it is attached to the saw-blade, two horns or projections, 7b '23, each of a size and shape adapting it to beconveniently grasped by the users hand, a bent 5 5 or curvilinear portion extending from the base of one to that of the other of said horns or projections and of a character and length affording two several hand-holds, b b, and a piece,

0, connecting horn or projection iwith straight side 0. These parts surround a central aperture, f, ofa shape and size allowing for the reception of the inner end of screw-bolt (Z and its thumb-nut, and also for the passage of the users hand for the purpose of grasping the part a of the handle without coming into contact with said bolt or nut.

If this handle be attached to the saw in either the position shown in Fig. l or that shown in Fig. 2, the operator may conveniently operatc the saw, if the work be sufliciently light, by grasping section b of part a of the handle with one hand, while, if the work be heavier, he may also grasp the horn or projection IL with his other hand. 7 5

If the handle be attached to the saw as shown in Fig. 3, the operator may work the saw conveniently by grasping the section Z) of part a of the handle with one hand and the horn or projection t' with the other.

It will be noticed that the horns or projections ht are at an angle to each other, projection It being practically on a line with side 0 and projection t with side c of the handle, so that when the handle is attached to the end of the blade the projection h and when it is attached to the top of the blade the projection 1' is in the best position to serve as a handhold.

It will also be noticed that the shape of the handle and the relative positions of the horns It and 1 and the intervening bent or curvilinear part a of the handle to each other and to that part, c, of the handle by which it is secured to the blade are such that whatever the 5 position of the handle with respect to the blade one of the operators hands, when both are used, will be a little to the rearward of the othera condition more advantageous and less tiresome than where the hands are close together or in line with each other.

It will also be noticed that the relation of the bent or curvilinear part (6 of the handle to the straight side is such that whether the position of the handle be that of Fig. 1 or that of Fig. 2 the operators grasp upon said bent or curvilinear portion a'is at such a point that the thrust upon the blade is practically upon a plane with the line of travel of the blade. This, when the handle is in the position ofFig; 2, prevents the tendency to buckle existing when the handle is of such construction line.

that the thrust is from above or below that In the present instance the curvilinear portion a or grip of the handle is shown as of such a length and curvature as to present two distinct hand holds, 1) b, substantially at right angles to each other; but I wish it to be understood that I do not desire to confine myself to the precise form and proportions shown, as it will be evident that they may be changed without departing from my invention so long as the grip a extends above and in rear of the opening f of the handle, so as to present a convenient hand-hold for the operator, whether the handle be attached to the end or top of the blade.

Ielaim as my invention- 1. A saw-handle having a portion, 0, whereby it may be attached either to the end or top of a saw-blade, a hand-hold, f, a grip portion, a, and a projection, 1', said grip portion extending above and in rear of the hand-hold and permitting the convenient grasp of the handle whether the latter is attached to the end or top of the blade, and said projection i providing an additional hand-hold above the grip a when the handle is attached to the top of the blade, all substantially as specified.

2. Asaw handle having a portion, 0, whereby it may be attached either to the end or top of the saw-blade, an opening, f, a grip portion, a, extending above and in rear of said opening, and projections h and t at the extremities of said grip portion a, all substantially as and for the purpose set forth.

3. Asaw-handle having a portion, 0, whereby it may be attached either to the end or top of a sawblad, and having handholds Z I), substantially at right angles to each other, and an opening. f, between said hand-holds and the portion 0, all substantially as and for the purposes set forth.

4. A saw-handlehavinga portion, 0, whereby it may be attached either to the end or top of a saw-blade, two hand-holds, I) b, substantially at right angles to each other, an opening, f, between said handholds and the portion 0, and projections hi at the extremities of said hand-holds b b, all substantially as set forth. a

In testimony whereof have signed my name to this specification in the presence of two subscribing Witnesses.

CHRISTOPHER EISENHARDT.

Witnesses:

HENRY Bossnn'r, HARRY SMITH.