Improvements in Hand Tackers for Use in the Manufacture of Boots and Shoes.
Year: 1896

page_text: Date of Application, 21st Jan., 1896-Accepted, 7th Mar., 1896.
COMPLETE SPECIFICATION.
Improvements in Hand Tackers for Use in the Manufacture of
Boots and Shoes.
A communication from THE GOODYEAR SHOE MACHINERY COMPANY, of
Portland, State of Maine, United States of America.
I, ALFRED JULIUS BOULT, of 323 High Holborn, London, Middlesex, England,
Chartered Patent Agent, 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 :-
This invention relates to improvements upon hand tack driving machines by
means of which the operator is enabled to manipulate the machine and drive the
tacks by the use of one hand, leaving the other hand free for any desired
purpose.
Hereinbefore the common method of manipulating hand tack or peg driving
machines has been to position the machine upon the work in the desired place by
one hand, and then to operate the driving mechanism by the blow of a hammer or
maul held in the other hand.
This invention is shown and described in combination with tack feeding and
driving mechanism substantially as shown and described in U.S. Letters Patent
No. 500225, of June 27, 1893, granted to Crisp and Junkins, for improvements in
tack driving machines and to which reference is hereby made.
In the drawings:-
Fig. 1 is a side elevation of a tack driving machine showing by full and dotted
lines the motion of the hand operating mechanism.
Fig. 2 is the opposite side elevation of the same showing the hand operating.
mechanism at its greatest elevation.
Fig. 3 is a vertical cross section of Figs. 1 and 2 showing the connecting
mechanism between the hand operating mechanism and the tack driving plunger.
Fig. 4 is a horizontal cross section of Fig. 1 on line 4, 4, as seen from above.
Fig. 5 is a horizontal cross section of Fig: 3 on line 5, 5, as seen from below.
The hand operating mechanism consists of the flanged sleeve 1, which is fitted
to reciprocate the desired distance upon the shell A of the tack-driving machine.
This sleeve is connected to the plunger B by a suitable flexible connection 2 which
passes over a grooved pulley 3 mounted upon a stand 4 which is secured to the
shell A, at 5. As the sleeve 1, is moved down on the shell A, the plunger B is
raised by the connection 2. The flexible connection 2 which may be either a cord
or chain is connected to the sleeve 1, by the rod 6, which passes through the
sleeve parallel with the shell A, and is locked in position by the spring lock 7,
Figs. 3, 5.
The spring lock 7 is pivoted at 8 to the under flange of the sleeve as shown by
Fig. 5 and the spring 9 acts to keep it in contact with the connecting rod 6.
The outer end of the spring catch 7 is fitted to engage with the vertical cam 10,
Figs. 2 and 4, when the sleeve 1, has about reached its lowest position upon the
shell A. The contact of the catch 7 with the cam 10 causes the catch to be
drawn from the projection 11, formed upon the rod 6, and allow the plunger B,
to drop.

page_text: On the stand 4, there is fixed the stop 12 which limits the upward rise of the
od 6, so that when the sleeve 1, is moved fully up, the lock 7, will engage with
the catch 11, ready to raise the plunger B, when the sleeve is again moved
downward.
The stop 12 also limits the upward rise of the sleeve 1, as will be understood by 5
reference to Fig. 3. To cause the plunger B to descend with sufficient force to
drive a tack after it has been raised by the action of the sleeve 1, and the rod 6,
has been unlocked, the raising spring B2 will act to draw the plunger down when
the spring lock 7 is brought in contact with the cam 10.
In using these machines the operator grasps the sleeve 1, in his hand when the 1
weight of the shell A and its attached parts causes the shell to assume the positions
shown by the full lines of Fig. 1.
He then places the tack delivery nozzle on the work at the place where it is
desired to drive a fastening. He then presses the sleeve down to the position
shown by the dotted lines of Fig. 1.
This causes the connection to raise the plunger B, against the resistance of the
spring B 2 until the cam-lock 7, engages with the cam 10, when the connecting
rod 6 is released and the spring B 2 forces the plunger B forcibly down and causes
it to drive the fastening.
Raising the tack driver causes the parts to assume their normal position ready
for another active operation. A chute of any desired form is connected with the
implement at one side thereof, to contain and feed the tacks or nails to be driven.
Having now particularly described and ascertained the nature of my said inven-
tion as communicated to me by my foreign correspondent and in what manner the
same is to be performed, I declare that what I claim is
1. A hand tacker having a spring actuated plunger enclosed in a case or shell,
a movable sleeve surrounding the shell and connected with the plunger and a latch
or locking mechanism and mechanisin for automatically releasing the latch to drive
a nail or tack when the sleeve is pushed down over the shell, substantially as and
for the purpose described.
2. A hand tacker having a spring actuated plunger enclosed in a case or shell,
a movable sleeve surrounding the shell and connected with the plunger by a flexible
connection and a latch or locking mechanism and mechanism for automatically
releasing the latch to drive a nail or tack when the sleeve is pushed down over the
shell, substantially as and for the purpose described.
3. A hand tacker having a spring actuated plunger enclosed in a case or shell,
a latch or
a movable sleeve surrounding the shell and connected with the plunger,
locking mechanism, and a cam near the lower end of the case or shell for releasing
the latch when the sleeve is pushed down over the shell thereby driving a nail or
tack, substantially as and for the purpose described.
4. A hand tacker having a spring actuated plunger enclosed in a case or shell,
a movable sleeve surrounding the shell, a vertical stand or bracket carrying a
sheave or pulley, a vertical rod parallel with the case, a cord or chain connected at
one end to the upper end of the rod and at the other with the plunger, and a latch
which is automatically released when the sleeve is pushed down over the shell
substantially as and for the purpose described.
5. A hand tacker having a spring actuated plunger enclosed in a case or shell
a movable sleeve surrounding the shell, a vertical stand or bracket carrying
sheave or pulley, a vertical rod substantially parallel with the case, a cord or chai
connected at one end to the upper end of the rod and at the other end with th
plunger, a stop to arrest the upward throw of the rod, and a spring latch an
mechanism for automatically releasing the same when the sleeve is pushed downwar
over the shell, substantially as and for.the purpose described.
6. A hand tacker having a spring actuated plunger enclosed in a case or shel
a movable sleeve surrounding the shell and connected with the plunger and a late

page_text: or locking mechanism and mechanism for automatically releasing the latch when
the sleeve is pushed down over the shell, in combination with a tack holding and.
feeding chute, substantially as and for the purpose described.
Doted this 21st day of January 1896.
BOULT & WADE,
Agents for the Applicant.