US2282902A

US2282902A - Hacksaw

Info

Publication number: US2282902A
Application number: US315496A
Authority: US
Inventors: Sultan Max
Original assignee: Individual
Current assignee: Individual
Priority date: 1940-01-25
Filing date: 1940-01-25
Publication date: 1942-05-12
Anticipated expiration: 1959-05-12

Description

- May 12, 1942. M. SULTAN I 2,232,902

HACKSAW Filed Jan. 25, 1940 n. Z x

INVENTOR.

Arrow Patented May 12, 1942 F g Max Sultan, Brooklyn, N. Y.

Application January 25, 1940, Serial No. 315,496

2 Claims.

The object of the present invention is to provide a'hacksaw comprising a novel form of holder and a blade especially designed to coact therewith, the two being so formed that the blade may be securely held in fixed position in each of six different mountings on the holder.

The invention will be described with reference to the accompanying drawing, in which:

Figure 1 is a view in side elevation of an embodiment of the invention.

Figure 2 is a top plan view of the embodiment shown in Figure 1.

Figure 3 is a sectional elevation taken on the line 3-3, Figure 1.

Figure 4 is an enlarged sectional view on the line 4-4, Figure 1 Figure 5 is a view in elevation taken at one end of the clamping bolt.

Figure 6 is a view in elevation taken at one side of the clamping bolt.

Figure 7 is a fragmentary viewof the hacksaw blade toward the rear end of the latter.

Figure 8 is a view in side elevation similar to Figure 1 and showing the blade mounted rearwardly of the clamping bolt.

Figure 9 is a view similar to Figure 2, the blade being mounted on the top'of the holder.

Referring to the drawing, it will be seen that the holder comprises a primary member I carrying a handle 2 from which projects a finger piece 3 so that the handle and finger piece are preferably formed as a pistol grip. The primary member I is in the form of a vertical plate having centrally thereof and. projected forwardly an integral web Ir. At the top of the web and extending on opposite sides thereof is a Wall 4 and at the bottom of the web and extending at opposite sides thereof is a wall 4.1:.

blade and adapted to lie in register with the clamping bolt, there is formed a bolt-receiving aperture 90:, preferably oval in form, Rearwardly of the oval aperture 920 the blade is formed with wedge-shaped recesses Hi to receive the lugs 6. Also toward the extreme rear of the blade the latter is formed with an aperture to receive one of the two hook shaped lugs 5.

When the wing nut 8 is turned toward its position shown in Figure l to release the clamping bolt 1, the latter may be moved upwardly until its lugs 1.1: clear the blade 9. then be removed by a lateral movement so that it will swing rearwardly and become disengaged from the hook 5. In restoring the blade to operative position, it is so placed that the hook 5 enters the rearmost blade aperture. The blade is then swung until it contacts with web la: and

' in so doing the recesses ID are entered by the The wall just described provide at each side of the web la: a U-shaped channelway for the reception of the hacksaw blade.

At each side of the web la: and somewhat rearwardly thereof is a hook lug 5. Also at each side of the web and projected from the walls 4, 4a:, are opposed wedge lugs B.

The walls 4,41, near the front ends thereof are formed with apertures to receive a clamping bolt 1, the bolt being threaded at its lower end to receive the wing nut 8. As shown more particularly in Figures 5 and 6, the clamping bolt is fiat-sided and at the top of each side under the head of the bolt is a downwardly projected lug la: having its inner wall tapered to provide a recess for the reception of the top of the blade.

The blade is shown at 9. Rearwardly of the lugs 6. In such movement the clamping nut is held in raised position so that the lugs 1:1: will lie above the blade. The clamping bolt is then moved downward to its position as shown in Figure l or Figure 3 and the wing nut 8 is turned, causing the bolt to descend and firmly clam the blade between the appropriate lugs 1a: and the wall 4.1:.

Inasmuch as the same blade-engaging elements are used on each side of the web Ix, the blade may be positioned either as shown in Figure 1 or Figure 8. Also, the blade may be reversed in position on either side of the web, which means that the saw blade would lie'with its toothed edgeuppermost. Thus with the use of the device as shown and described, the blade may be held in four positions. The fifth and sixth positions will nowbe described.

Referring to Figure 9, it will be seen that the hook 5x carried by the top wall 4, and the oval aperture 9.1; permits the blade to be positioned upon the top wall 4 and held in such position by the clamping action of the bolt. The bolt need not be removed; Preferably, its head is oval in shape so that when the bolt is turned the major axis of the head extending longitudinally of plate 4, the blade may receive book 50: and the head of the bolt pass through the aperture 9m. Thereupon, the head of the bolt may be turned to the position shown in Figure 9 and the wing nut 8 actuated to clamp the blade firmly in position.

By means of the invention, my hacksaw is capable of such adjustment in the position of the blade that sawing operations otherwise difilcult or impossible to perform, can be readily accom- The blade may plished, and the means to that end are simple and inexpensively constructed.

Having described my invention, what I claim and desire to secure by Letters Patent, is as follows:

1. In a hacksaw, a holder comprising a primary member carrying a forwardly projecting web, plates carried by the web at its top and bottom and projecting laterally of both faces of the web, the plates projecting forwardly of the web, the projecting portions of the plates being formed with aligned apertures, lug projections carried by the web at each side thereof and a clamping bolt passing through the aligned aperblade.

adapted to engage an edge of a blade in opposition to the bearing action upon the opposite edge of the blade provided by one of the plates.

2. A hacksaw constructed in accordance with claim 1, in which the bolt is rotatable to carry its blade clamping shoulder to either side of the holder, the bolt being formed at its top with an elliptical head, and a stud carried by that one of the plates which immediately supports the elliptical head of the bolt said head and stud being of such dimensions as to pass through a corresponding elliptical hole and aperture in a saw MAX SULTAN.

tures and having a blade engaging shoulder, 5"