US764374A - Saw. - Google Patents

Description

UNTTEn STATES Patented July 5, 1904.

l ATnNT QEFICE.

TIMOTHY A. REMS EN, OF BROOKLYN, NEW YORK, ASSTGNOR, BY MESNE ASSIGNMENTS, TO MARY E. REMSEN, OF BROOKLYN, NEW YORK.

SAW.

SPECIFICATION forming part of Letters Patent No. 764,374, dated July 5, 1904.

Application filed December 26,1903.

To all whom it may concern.-

Be it known that I, TIMOTHY A. REMsnN, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Saws, of which the following is a specification.

This invention relates to saws, and while the improved article is of particular advan- I0 tage for use by plumbers and gas and steam fitters it is not so limited. The device is capable of receiving a plurality of saws held in parallelism in a novel manner, and when the saws are so held they may be effectively used for making parallel cuts in a series of parallel beams or the like to prepare seats in the beams for receiving a pipe.

The saw includes in its organization a frame and a plurality of plates connected therewith, each having a series of slits in an edge to re ceive a series of saw-blades, which in the present case are two in number. Preferably one of theseplates is mounted for adjustable movement, by virtue of which the saw-blades can be tightened.

The invention in one simple embodiment thereof is clearly illustrated in the accompanying drawings, forming a part of this specification, and in which-- Figure l is a side elevation of the improved saw. Fig. 2 is a perspective View of the forward end of the frame thereof. Fig. 3 is a detail of one of the slitted plates. Fig. 4f is a detail view showing aseat formed by the improved saw and by dotted lines a pipe in the seat.

Like characters refer to like parts throughout the several views.

The improved saw includes in its construe- 4 tion a frame, which may be of any suitable character. The frame shown consists of an elongated bar (denoted by 5) and which may be of any suitable material or shape. It may be made from wood or from a casting.

Upon what is shown in Fig. 1 as the upper side of the frame or bar 5 is a handle6 of substantially bail form and situated substantially 'will now be described.

at the rear end of said frame or bar. When Serial No. 186,641. Ola mo the bar consists of a casting, the handle 6 may be made integral therewith, or the two parts can be formed separately and subsequently united in any desirable or convenient way.

The saw is provided with means for adjustably secu ring a plurality of saw-blades in parallelism, whereby the teeth of the blades can simultaneously cut through parallel beams, timbers, or the like. The saw-blades in the present instance are two in number, and they are adapted as the frame or bar 5 is reciprocated back and forth by the handle 6 to cut parallel kerfs in a series of beams. W'hen the cuts are of the proper depth, the stock of the beams between the same is knocked out by a suitable implement, whereby seats are formed in the beams to receive piping. The saw-blades being readily adjustable, cuts of different Widths can be made in said beams.

Two plates are shown in the drawings, each being denoted by 7, and in the form of the invention illustrated these plates depend from the frame or bar 5, although this is not essential, for the relation set forth may be reversed or otherwise changed. The plates? are shown as made integral with the shanks or arms 8, rising centrally from the respective parts and suitably united, as will hereinafter appear, to the frame or bar 5. The union illustrated between the said shanks or arms and the bar The vertical shank or arm 8, which rises centrally from'the rear plate 7, has a bifur cation or notch in its upper end to receive the rear end of the frame or bar 5, the two parts being riveted or otherwise suitably rigidly connected together. The arm or shank 8, which similarlyrises from the forward plate 7 has a square loop 9 in its upper end to receive the forward end of the frame or bar 5. The slot or opening in the loop 9 is longer than the depth of said bar or frame, by virtue of which said forward plate can have a rela tive movement with respect to the bar or frame.

The extension or strip 10 is suitably rigidly fastened to the forward shank or arm 8 near the top of the latter and extends along the upper forward cutaway side of the bar or frame, the rear end of the extension or strip 10 being fulcrumed in a seat or notch 11 on said frame or bar. From this it will be evident that said extension is capable of a leverlike motion, whereby a corresponding swinging movement of the forward plate 7 can be had, such motion, as will hereinafter appear, being utilized to tension the saw-blades supported by the two plates 7.

A set-screw 12 is tapped through the upper side of the loop 9, its lower end bearing against the upper forward side of the frame or bar 5, whereby the swinging motion just alluded to can be manually secured.

Each plate 7 has inits lower edge a series of slits 13, the slits in the respective plates being spaced apart equal or unequal distances, as may be desired. These slits may be of any desirable number, and each slit in each plate alines longitudinally of the bar or frame 5 with a slit in the otherplate and is adapted to receive a saw-blade. Two of such saw-blades are shown, and each is denoted by 14.

The two plates 7 being connected with the frame or bar 5, a saw-blade of the requisite length will be inserted in two alined slits of the plates 7, after which a second saw-blade will be inserted in two other slits. Said plates 7 have transverse perforations near their lower slitted edges to receive the pins 15, which latter are adapted to pass through similar perforations near the opposite ends of the two blades after said blades are introduced into the desired slits. As there are a number of slits in each plate, the two sawblades can be readily adjusted to form cuts in timbers or the like at desired widths. When the saw-blades are assembled and their holding-pins 15 inserted, the forward plate 7 is adjusted to tighten said blades. This tightening of the saw-blades can be accomplished by running in the set-screw 12, whereby the said forward plate is swung forward, the extension 10 on the forward shank 8 being slightly elevated during this operation. WVith the parts assembled as indicated and the sawblades tightened, the implement is ready for use in the manner hereinbefore described.

The slits 13. are so spaced as to provide for the lateral adjustment of the saw-blades to form cuts in beams three-quarters of an inch, one inch, or one and one-quarter inches apart; but these dimensions, of course, can be changed to suit individual users or the purpose to which the tool is put. The implement can be used for a variety of purposes other than that specifically disclosed.

The invention is not limited to the construction illustrated in the drawings and hereinbefore particularly described, for divers changes as to several features of said invention may be adopted within the scope of the following claims.

It will be remembered that the handle 6 of the saw has been described as being upon the upper side of the frame 5. This is one of the important features of the invention, as by it I am enabled to get a full-length cut or sweep of the two blades as the saw is reciprocated back and forth. This is not the case with saws of the ordinary kind where the handles are at the ends of the respective blades. In sawing through beams with a saw of the ordinary kind the handle thereof works back and forth in the space between two beams, the two beams limiting to a considerable extent the operation of such saw of ordinary kind.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is r 1. In a saw, a frame having a handle upon the upper side thereof, and means depending from the frame, for connection with the ends of saw-blades, to support said blades in parallelism with their upper edges below said frame.

2. In a saw, a frame consisting of an elongated bar, plates connected with and depending from the bar at longitudinally-separated points, each plate having a series of slits in its lower edge to receive saw-blades, the top walls of said slits being below said bar.

3. In a saw, a frame consisting of an elongated bar having a handle upon the upper side thereof, and plates connected with and depending from the bar at longitudinally-separated points, each plate having means for receiving a plurality of saw-blades.

4. A saw including a frame, a plate con.- nected with said frame, having a series of slits in an edge, a second plate provided with a looped shank, the loop of which is adapted to receive said frame, an extension on said shank, the frame having aseat to receive said extension, and a set-screw on the shank for bearing against the frame to angularly adjust the second plate.

5. A saw including a frame having a handle on the upper side thereof, a plate connected with said frame, havinga series of slits in an edge, a second plate provided with a looped shank, the loop of which is adapted to receive said frame, an extension on said shank, the frame having a seat to receive said extension, and means for adjusting said second plate with respect to the frame.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

TIMOTHY A. REMSEN.

Witnesses:

CHAS. A. HAVILAND, MARY V. REMSEN.

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