IMPROVEMENTS IN SAW SETS
Year: 1884

page_text: I, CHARLES CROISSANT, of 2021, Washington Avenue, Albany in the County of
Albany and State of New York, one of the United States of America, Manufacturer,
do hereby declare the nature of my Invention for "IMPROVEMENTS IN SAW SETS,"
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
In the Drawings, Figure 1 represents a side elevation of my improved saw-set.
Figure 2 is a sectional view taken at line 1 in Figure 1. illustrating two teeth
sets in an adjusted position.
Figure 3 is a cross sectional view taken at line 2 in Figure 1. and illustrating
the two teeth sets, in an adjusted position, and the anvil block and tooth gague.
Figure 4 is a sectional view of the upper jaw of the set, and mechanism for
adjusting the movable tooth set, taken at line 3 in Figure 2..
Figure 5 is a horizontal view taken at line 4 in Figure 1, and illustrating the
mechanism by which the set of the saw teeth are gagued in their length of bend
or set over.
Figure 6 is a sectional elevation taken at line 5 in Figure 5 illustrating the
manner in which the anvil-block is held with the lower jaw of the set, and the
mechanism for adjusting the tooth gague in relation to the said block.
Figure 6 is a perspective view of the tooth set employed in my improved
saw-set.
Figure 7 is plan view (viewed from below) of a jaw provided with but one
tooth set.
Similar letters of reference refer to similar parts throughout the several views.
In the Drawings A represents the upper jaw of my improved saw-set, and A¹
is its attached handle: B is the lower jaw of the same, and B¹ is its attached
handle.
These jaws with their handles are united together by pivot screw a in the usual
manner; and a spring b is provided for throwing the jaws and their respective
handles apart as shown in Figure. 1.
Made in upper jaw A-from its lower side is recess c which is made with
substantially an oblong form as shown in Figs. 2 and 3 when two teeth sets are
employed, and with substantially a square form as shown in Fig. 7. when but one
tooth set is employed in the tool.

page_text: This recess c has its side walls made substantially vertical and with a prefered
depth of about one half of one inch, more or less, accordingly as the size of the
tool may require by reason of proportion of parts.
When the tool is provided with two teeth sets-C C. the recess c is made with
a length from end to end about equal to three times the width of the upper end of
one of the tooth sets this recess is to receive.
The plane of the surface of the top wall of this recess which has bearing on
the upper ends of these teeth sets C, as shown in Fig. 3. is made at right angles
with the surfaces of the end and side walls as shown in the same Fig.
The form of the tooth-set I employ is shown in Fig. 7. and a plan view of its
lower end is shown at C. G. in Fig. 5.
The upper end or head end of this tooth set is made with a rectangular form
as shown at C. and C¹. in Figure 2, and nicely fit into recess c from front to rear
side as shown.
When but one tooth set is employed in this tool as shown in Fig. 8. I make said
tooth set with a triangular form as shown by full and dotted lines in said Figure.
With this form the ends of the tooth set may be reversed in the jaw, and each
corner of each end may be used as a set.
When two teeth set are employed one of thein as tooth set C is fitted in the
oblong recess c against an end thereof and secured from shifting; the other tooth
set C. also nicely fits in the said recess and is provided in its upper end with the
screw threaded hole e shown in Figures 2, 3 and 7.
The end wall c¹ of recess c opposite to tooth set C¹ is pierced with a plain hole f
shown in Figures 2 and 3 at a point opposite to hole e in the tooth set C₁.
D. Figures 1, 2, 3, and 4, is an adjusting screw. inade with a thumb head d,
screw threaded stem d', annular groove d² and a shouldered journal d³.
с
This adjusting screw passes through hole fin wall portion e of the recess c. and
is screwed into the screw threaded hole in tooth set C until journal d³ is made to
enter a corresponding sized hole provided in the side of the fixed tooth set C. as
shown in Figures 2 and 3.
L
A holding pin g set in vertical hole h provided in wall portion c¹ at the groove d²
in the adjusting screw D holds that screw from being moved longitudinally in
either direction.
.
When this adjusting screw is turned in one direction, it will move tooth set C
towards tooth set C, and when turned in an opposite direction, this movable tooth
set will be moved away from the fixed tooth-set.
E Figures 1 and 2, is a short arm projected from the upper portion of the upper
jaw of the tool and provided with a screw threaded hole i. F is a presser foot
pivoted on the lower end of a adjusting screw. F₁, which screw passes through
hole i in arm E and is designed to raise or lower presser foot F in relation to the
lower ends of the teeth set or sets C and C' as may be necessary to give to the
saw teeth the required set.
Mash nuts kk are provided on adjusting screw F1, one for holding the adjusting
screw from turning and the other for holding the foot from turning on the
pivot end of the screw.
presser I
G. Figures 1. 3. 5. and 6 is the anvil block which is secured with lower jaw B by
a dove-tail seat m shown in Figure 6.
When two teeth sets are employed in the tool this anvil block is made with a
length nearly equal to the length of recess c holding the two set teeth.
Projecting downwardly from the lower side of lower jaw B. of the tool are
ears n n which are pierced with plain holes n'. n'. Figure 6.
H. Figs. 1, 6 and 7. is an adjustable guage, composed of the screw pierced
sleeve o, arms o¹ o¹ and guaging lips o² o² as shown in the said Figs.
This guage is arranged with jaw B, with screw thread pierced sleeve o working
in the recess between ears n, n, and arms o¹, o¹, extended upward against the sides
of the jaw with the guaging lips o² o projecting in part above the upper surface
of the anvil block G. as shown in Figs. 1 and 3.
>

page_text: I. Figs. 1 and 6, is an adjusting screw provided with a finger wheel for turning
the same, and with a screw threaded stem q, which works into the screw threaded
hole in sleeve o of the guage.
This adjusting screw is passed through the smooth hole n¹ in the forward earn,
and is then screwed into sleeve o of the guage and finally through the hole in the
rearward ear n, when it is secured by riveting against said ear as shown in Fig. 6.
By turning this adjusting screw in one direction, the lips o² o² of the guage H
will be moved in direction towards the front of anvil block G. and when turned
in an opposite direction, the said lips will be moved rearward, and the tool may
thereby be adjusted for use with saws having longer or shorter teeth.
By my above described improvements, the saw set whether provided with one
or two teeth may be readily adjusted to operate with the teeth of fine or coarse
teeth, and set with a greater or less outward flare as may be required.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what
I claim is:
1-In a saw set employing pivoted handled jaws the combination with anvil
block G. secured to one of the jaws, and a fixed tooth of a triangular form,
mounted in the other jaw, of the presser foot and guage H. substantially as and
for the purposes set forth.
2-In a saw set employing pivoted handled jaws, the combination with anvil
block G. secured to one of the jaws, of fixed tooth-set C. movable tooth set C¹ and
mechanism for adjusting the latter tooth set nearer to or further from the former
for the purposes set forth.
3-The combination with jaw A. provided with oblong recess c and fixed tooth
set C. of movable tooth set C₁ pierced with a screw threaded hole, adjusting screw D,
holding pin g. working with the annular groove d² made in the neck of said
adjusting screw, substantially as and for the purposes set forth.
4-The combination with arm E having screw hole i adjusting screw F1 and
presser foot F of mash nuts k¹ substantially as and for the purpose set forth.
5-In a saw set having one of its jaws provided with one or more tooth sets,
and the other with an anvil block, the combination and arrangement of adjustable
guage H composed of screw threaded sleeve o arms o¹ o¹ and guage lips o² o2 and
adjusting screw I working loosely in ears n made with the anvil block jaw and
into the sleeve of the guage, all substantially as and for the purposes set forth.
.Dated at Albany, N.Y., U.S.A., this 31st day of May 1884.