Improvements in Saw Swages.
Year: 1890

page_text: Improvements in Saw Swages.
I, LEWIS P. HALLADAY of 1007 Opera House Block, Chicago, Illinois, United
States of America, Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed to be particularly described and ascertained
in and by the following statement :-
My invention relates to devices for swageing saws and has for its object to provide
a cheap, convenient device for that purpose. These objects I accomplish by means of
the mechanism illustrated in the accompanying drawings wherein;
Figure 1 is a side view of the machine, with a portion of the saw and parts of the
machine and different positions of the machine shown in dotted lines.
Figure 2 is a back view of the hand lever mechanism.
Figure 3 contains view of the swageing dies.
Figure 4 contains views of the clamping and die securing screws.
Figure 5 is a front view with the face plate removed.
Figure 6 is a cross section through the head with plate restored.
Figure 7 is a cross section on the line 5-5.
Like parts are indicated by the same letter in all the figures.
A is a standard supported on the base B; C) is a rod thereon held upwardly
by the spiral spring D and pivoted to the foot lever E which in turn is pivoted
to the standard at F. G is a perforated bar or extension of the standard and H
is an extension or similar bar on the opposite side and they form between them a
groove or recess I in which moves the bar K which is pivoted at L to the bar C. Mis
an eccentric pivoted to the saw support N and provided with the bandle O whereby the
support may be clamped so as to be secured to the frame. P is a pin which passes
through a hole in the support N and thence into the perforations of the bar G. The
saw support N has rearward dovetailed extensions as indicated by the dotted lines in
figures 5 and 1 and by full lines in figure 7 to engage the bars G and H. Q is a face
plate bolted to the rear plate R and having the clamping screw S upon the handle T
extend above or below. U is a saw resting upon the support N in the
groove W is a square headed permanent die against which the lock nut or
clamping screw ✗ may bear. Y is a rotating die secured upon the handle Z and
having at one side the grooved portion a. b is a rod pivoted to the lever Z and at its
other end to the sliding block c. The plate R is grooved at d to receive the pivot pin
which connects the rod and block. To this block is pivoted the finger c which may
ride upon a pin f. The block c is limited in its motions by the adjustable stops
g and h.
which
may
The use and operation of my invention are as follows;
The saw support N is secured at any convenient altitude by means of an eccentric M
pivoted to one side and it may be very permanently fixed in position by means of a
pin P passing into the perforated bar at any position. It is grooved along its upper
edge on the side toward the frame and may have a passage way or groove through
which the saw proper may slide. In the upper portion of the frame or the head and
on the surface thereof and back of the support is a recess or wide groove in which the
bar K which carries the head moves. Pivoted to the lower end of this bar is a rod C
or arm which is borne upwardly by means of the spiral spring D at its base and is
pivoted to the foot lever E so that it may be depressed to draw down the head into the
position shown in figure 1. Passing through this head are the two dies W Y one
designed to remain permanently in its position the other to rotate. The one which is
fixed permanently is provided with a clamping screw X or other device to more
securely retain it in position, and it also has the square inner end which presents one
side of its surface to the rotating die; on one side of the upper frame or head is the

page_text: hand lever T which controls the saw clamping screw and on the other side is the hand
lever Z which controls the rotating die and is provided with a rod to the sliding block C
upon which the feed finger E is pivoted. The upper frame or head is composed of two
portions R Q as shown bolted together.
The saw is first placed in position on the support, the height of the support being
fixed as may be required. The hand lever which controls the rotating die is moved
forward into the position shown in dotted lines on the left of the center; by this action
the feed finger is forced forward and it engages as indicated, the tooth next to be
swayed and near its point. The upper frame or head is then depressed by the foot
lever until the tooth is brought into the position shown in dotted lines in figure 3.
The hand lever is now drawn backward into the position shown in full lines in figure 1
and by so doing the point of the tooth is spread outwardly in the groove on the
rotating die as indicated in figure 3. When the upper frame or head has been
depressed and the tooth brought into the proper position the clamping screw lever
handle is drawn to the position shown in dotted lines in figure 1 thus securely clamping
the saw.
This process is continued until all the teeth of the saw have been sufficiently
swayed; the stroke of the feed finger is limited by the adjustable stops. A portion of
the front side of the upper frame or head is cut away as shown to permit the feed
finger to enter far enough to throw the saw tooth into position.
Having now particularly described and ascertained the nature of my said Inven
tion and in what manner the same is to be performed I declare that what I
claim is
1. In a saw swaging machine the combination of a feed finger with swaging dies,
both dies and finger secured to a vertically movable head and a frame with a saw
support thereon and on which the head moves so as to approach and recede from
the saw.
2. In a saw swaging machine the combination of a reciprocating feed finger adapted
to successively engage the teeth next to be swaged, adjustable stops to limit the motion
of the finger, a rotating die which when rotated swages the tooth, and a hand lever
connected with the finger and die so that when moved in one direction it causes the
finger to feed the saw and when moved in the reverse direction rotates the die thus
swaging the tooth and returning the finger to its normal position.
3. In a saw swaging machine the combination of an independently adjustable saw
support with a vertically reciprocating head which carries the saw feeding finger and
the swaging dies.
4. In a saw swaging machine the combination of a saw support with a vertically
reciprocating head, a feed finger, swaging dies and hand lever on said head, said parts
constructed so that the hand lever may be operated to cause the feed finger to feed the
saw, the head to be depressed to bring the tooth into position and the die then to be
turned by means of the hand lever to swage the tooth.
5. In a saw swaging machine a frame in combination with a saw support thereon, a
head which carries the die and feed finger, a spring which keeps said head normally
elevated and a lever whereby it may be depressed.
Dated this 7th day of January 1890.
FREDERIC PRINCE,
1, Quality Court, Chancery Lane, London, Agent for Applicant.