US407438A - Saw-set - Google Patents

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US407438A
US407438A US407438DA US407438A US 407438 A US407438 A US 407438A US 407438D A US407438D A US 407438DA US 407438 A US407438 A US 407438A
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dies
jaws
saw
teeth
levers
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D63/00Dressing the tools of sawing machines or sawing devices for use in cutting any kind of material, e.g. in the manufacture of sawing tools
    • B23D63/02Setting saw teeth by means of hand-operated or foot-operated devices

Description

M. I-I. GROSS.
' SAW SET.
No. 407,488. 4 Patented July 28, 1889.
N PETERS. Pham-Lithograph, W2 hngiun, D4 C.
UNITED STATES PATENT OFFICE.
MILTON HENRY GROSS, OF ABILENE, KANSAS.
SAW-SET.
SPECIFICATION forming part of Letters Patent No. 407,438, dated July 23, 1889.
Application filed November 27, 1888. Serial No. 291,971. (No model.)
To all whom t may concern:
Be it known that I, MILTON HENRY GROSS, a citizen of the United States, and a resident of Abilene, in the county of Dickinson and State of Kansas, have invented certain new and useful Improvements in Saw-Sets; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
u My invent-ion relates to improvements in saw-sets; and it consists of the novel combination and construction of parts, as will be hereinafter fully described and claimed.
One of the objects of myinvention is to pro` vide a saw-set with a pair of coacting dies of novel construction, which simultaneously act on a series of saw-teeth to force the alternate -teeth in the same direction, or, in other words, to force each two adjoining` or consecutive teeth in opposite directions, and set said teeth at the same inclination or angle to the axis of the saw-blade.
My invention also contemplates the easy and expeditious removal of the pair of dies from the movable jaws of the saw-set, so that another pair of dies having a larger or smaller number of teeth can be substituted for the dies previously removed.
The obj ect of providing these interchangeable dies is to adapt the same implement to set saws having a larger or smaller numbtr of teeth to the inch. Thus some saw-blades have eight teeth to the inch, whileothershave ten or more teeth to the inch.
A further obj ect of my invention is to provide a simple and inexpensive implement to be operated by hand, and which is capable of exerting the requisite power or force for setting the saw-teeth by a simple pressure on the levers thereof by the operators hand.
To enable others to understand my invention, I will now proceed to describe the same in connection with the accompanying drawings, in which- Figure .l is a side elevation of my improved saw-set with the jaws thereof open to separate the dies. Fig. 2 is a similar view with the jaws and dies closed. Fig. 3 is a vertical sectional view taken transversely through the dies and jaws. Figs. 4 and 5 are detached perspective views of two dies having an unequal or varying number of teeth, a pair of either of which can be readily fitted inthe jaws of the implement.
Referring to the drawings, in which like numerals of reference denote corresponding parts in all the figures, l 2 designate the handles or levers of my improved saw-set, which are jointed together; and 3 4 are the jaws.
Each lever is provided at one end with twooutwardly-extending lugs 5 6, the lugs 5 of the levers being pivotally connected together by a pin 7, and to the lugs 6 of said levers are pivotally connected the lower ends of the jaws 3 4 by means of the pins 8, as clearly shown. In practice I prefer to mortise the lugs 5 of one of the levers and reduce the corresponding lug of the other lever, this reduced lug fitting snugly in the mortised lug and working freely therein, and the lugs 6 of said levers are likewise mort-ised to receive reduced portions of the jaws, thereby materially strengthening the parts. The jaws are also pivotally connected to one another at an intermediate point of their length by means of two lugs 9 and 10, which project toward each other from the opposing faces of the jaws and are connected by means of pivotpin ll.'
It is obvious that when the two levers are drawn or pressed toward each other the upper ends of the jaws above the pivot ll thereof will be moved nearer together, and in these ends of the jaws I provide the two setting- 4dies l2 13, one being secured in each of the jaws. These dies are fitted in sockets 14, formed in the opposing faces of the jaws, and one of the lateral faces of each die projects a short distance beyond the inner face ofthe jaw, so that the opposing faces of the dies will act upon the teeth of the saw-blade, which is inserted between said dies.
In the opposing faces of the dies areformed a series of offsets or teeth 15, which are spaced apart at suitable intervals to provide an intermediate series of depressions or recesses 16, and the dies are so arranged in the jaws of the instrument that the offsets of one die fit in the recesses of the other die when said dies are forced together. The oifsets on the faces of the dies are made tapering or V- shaped in cross-section, so that the base or larger end of each offset is at the lower edge of the die, and said offsets merge into or disappear at the upper edge of the die, as clearly The dies are correspondingly shaped to fit snugly in these sockets, and they are clamped firmly in place by means of binding-screws 17, which work in threaded apertures formed in the upper ends of the jaws. (See Fig. 3.)
In Figs. 4- and 5 of the drawings I have shown two dies which have an unequal number of offsets, and to serve as an illustration I have shown one die with a series of four offsets, while the other die has a series of six offsets; but I would have it understood that I do not confine myself to these proportions, as my invention contemplates the provision of sets of interchangeable dies having the series of offsets of indefinite number to accommodate saw-blades having varying numbers of teeth within a given length. As will be readily understood, one set of dies can be removed by simply loosening the binding'- screws and sliding the dies endwise out of the sockets to be replaced by another set of dies, which are secured in the jaws in the same manner.
To limit the distance that the saw-teeth can be inserted between the dies, and thus properly adjust the teeth between the dies, I have provided a fixed block or stop 19, that is secured to one of the jaws below the die thereof. This stop I9 has ears 2O at its ends, which lap over the sides of the jaw, and these ears are secured to the jaw by any suitable fastenings.
In the upper face of the stop I have provided a longitudinal .recess 2l to receive the points of the saw-teeth when they are inserted between dies, and this stop is made wider than the projecting edge of the die secured to the same jaw of the implement that said stop is secured to, in order that the outer edge of the stop will lie to one side of the meeting line of the two jaws when the latter are forced together.
To the opposing edges of the levers I have secured leaf-sprin o one end of each of which is fixed to one of the levers, while the other ends of said springs abut together when the levers are closed, whereby the springs force the levers apart when the hand-pressure is removed therefrom.
The operation of my invention is obvious from the foregoing description, taken in connection with the drawings.
The saw-teeth are inserted between the opposing faces of the dies, so that the oifsets therein will be forced against the teeth, which are prevented by the stop from passing too far between the dies, and the levers are now forcibly compressed to cause the offsets on the dies to press the saw-teeth in opposite directions, each offset of one die forcing one saw-tooth into the opposite recess of the other die, and the offsets and recesses are inclined or tapered the entire series of saw-teeth are set at the same inclination or angle to the axis of the blade. The levers are now released, to be forced outward by the springs, and the dies move away from the saw-blade, the latter is moved forward to bring other teeth thereon in position between the dies, and the operation of setting the saw-teeth repeated.
I-Iaving thus fully described my invention, what I claim is- 1. In a saw-set, the combination of the levers, the jaws pivotally connected together at an intermediate point of their length and pivoted to the levers, and the dies carried by the jaws, substantially as and for the purpose described.
2. In a saw-set, substantially as described,
the combination of a pair of jaws pivotallyconnected together at an intermediate point of their length, a pair of dies secured to the opposing edges of the jaws at one side oi' the pivotal connection thereof, said dies having coincident teeth and notches in their opposing contiguous faces, and a pair of levers pivotally connected to the jaws for moving the latter and the dies laterally, as and :for the purpose described.
3. In a saw-set, substantially as described, the combination of a pair of laterally-movable jaws 3 4f, pivotally connected together at an intermediate point of their length, a pair of dies carried by said jaws and located on one side of the pivotal connection thereof, near the free ends of the same, and a pair of levers pivotally connected to each other at 7 and to the jaws at 8, as and for the purpose described.
4. In a saw-set, substantially as described, the combination of a pair of pivoted jaws 3 1L, a pair of dies carried by said jaws, the ievers pivoted to the jaws for moving the latter and the dies laterally of each other, and a transverse stop fixed to one of the jaws below the die thereof, as and for the purpose described.
5. In a saw-set, substantially as described, the combination of a pair of jaws pivotally connected to each other atan intermediate point of their length, a pair of dies detachably secured to the jaws and having the co- IOO IIO
incident teeth Iamd depressions in their contiguous opposing faces, a trans verse stop fixed to one of the jews below the die thereon and projecting laterally of the j aw to et line beyond the exposed face of the die on the j nw, to which said stop is fixed, and zt pair of levers pivoted to each other and to the jaws, as and for the purpose described.
ce'A
In testimony whereof I afIiX my signature in presence of two witnesses.
MILTON HENRY GROSS.
Witnesses.
S. S. SMITH, E. W. REITZELL.
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