Improvements in Machines for Inserting Metallic Fastenings in Boots and Shoes and Leather Work.
Year: 1893

page_text: ate of Application, 24th Jan., 1893-Accepted, 1st Apr., 1893
YUMI ADID DI MUIRRATION
Improvements in Machines for Inserting Metallic Fastenings in Boots
and Shoes and Leather Work.
A communication from abroad by JAMES WILLSON BROOKS, of Petersham, in the
State of Massachusetts, United States of America.
I, ALFRED GEORGE BROOKES, of 55 and 56, Chancery Lane, in the County
of London, Chartered Patent Agent do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
In the machine herein to be described headed nails are thrown in bulk into
a hopper having co-operating with it a rotating lifter containing suitable buckets
which deposit the nails on the upper end of a raceway down which the nails
travel, the nails being let off one at a time by a separator which is moved at
the proper intervals to permit the endmost nail in the chute to enter a driver
passage in a nose where it is acted upon by a driver and driven therefrom into
the material.
Co-operating with this driver-bar is an independent awl-feeding device which
engages and moves the material.
The raceway is made movable longitudinally with the vibratory head having the
driver and awl bars, so that the roadway always preserves one and the same relative
position to the nose.
Fig. 1, is a right-hand side elevation of the upper part of a nailing machine con-
taining my present improvements together with part of the horn.
Fig. 1, is a sectional detail on the line y-y-Fig. 2.
Fig. 2, a front elevation of the machine shown in Fig. 1, the lifter, co-operating
with the hopper, being removed.
Fig. 3, a detail showing the separator.
Fig. 4, a detail showing the cam gỗ.
Fig. 4, a detail showing the feed arm D*.
Fig. 4B, a detail showing the stud of the feed rocker.
Fig. 5, a section to the left of the dotted line r, Fig. 1, some of the upper part
of the machine being broken away.
Fig. 6, a detail showing the inner side of the lifter.
Fig. 6, a detail showing the chute and clearer in section.
Fig. 6B, shows the rear part of the clearer, the front part shown in Fig. 2, being
removed.
Fig. 7, a sectional detail in the dotted line x¹, Fig. 1, looking to the left.
Fig. 8, is a top view of the raceway and a section of part of the swinging frame
and nose piece.
:
Fig. 9, a view of the lower end of the awl bar and awl thereon.
Fig. 10, an underside view of the raceway cover.
Fig. 11, shows the nose enlarged and in perspective, and
Fig. 12, is a front end view of the raceway.
The head A, mounted on a suitable column A', has bearings for a suitable
shaft C; upon the front end of which is a disk e, having a lug or projection e¹
which, in the rotation of the shaft, acts on a projection e³, attached to the driver-
bar a, provided with a driver a*.
The driver-bar is mounted in a movable head B, which is adapted to be oscillated,
as will be described, during the operations of the machine.
The upper end of the driver-bar has ball-jointed to it a link e, in turn connected
with a lever e³, acted upon by an adjustable spring, the latter serving to throw
[Price]

page_text: down the driver-bar quickly whenever the lug or projection el passes the pro-
jection e².
On the outer end of this main-shaft C2 is secured a suitable fast pulley, and
at its inner side is a suitable loose pulley, the two constituting a friction pulley
device, the loose pulley (driven constantly) being forced in contact with the
fast pulley at the proper times by a wedge C³, at the upper end of a rod A50
attached to a suitable treadle (not shown), so that when the operator puts his
foot upon the treadle the wedge is elevated, it acting against a loose collar C³×,
interposed between the wedge and the loose pulley, which is forked to embrace
the shaft C2, and the hub of the loose pulley.
Fast on this shaft C' is a cam Cº, having in one of its faces a suitable groove,
shown by dotted lines in Fig. 7, in which enters a roller or other stud of a
lever C
The lever C7 is connected to a rod C.
The nose or foot-plate & has at its under side an edge-gage d³, made adjustable
by a rod 0, which, in practice is provided with suitable teeth to engage suitable
teeth, not shown, connected to or forming part of the said edge-gage, the said rod
having a handle ¹².
The work or material into which the nails are to be driven will rest upon a
horn C, a part of which is shown in Fig. 1.
The parts so far described and referred to by letter are substantially as in other
nailing machines, and may be as in my application filed concurrently with this, and
using a metal strip from which the nails are cut transversely.
The cam C has its periphery beveled off on its two sides to be acted upon by a
brake-shoe B correspondingly grooved to fit the said beveled edges, the said brake
shoe, by acting upon the surface of the cam, serving to unerringly check the rota-
tion of the said shaft quickly after each nail or fastening has been driven.
The brake B', best shown in Fig. 7, is shaped as a segment, pivoted at B³ on an
arm of a sleeve B³, mounted upon a stud 1 fast in an ear of a bearing B*, see
Fig. 1, forming part of the frame or head A.
The hollow hub or sleeve B has an upright arm B', provided with a roller or
other stud B, which, in the rotation of the shaft C2 acts against the periphery of a
cam 13 attached to or forming preferably a part of the cam C, the said roller B
being represented as mounted upon a stud B10, made adjustable by a suitable screw
or adjusting device B in a slot at the upper end of the said arm.
The sleeve B³ has also an arm B's provided with a toothed segment B¹, see
Fig. 7, which engages a rack B on the rod or bar A60.
The shaft C has fast upon it a cam D, having at its rear side a cam-groove 3,
represented by full lines, Fig. 5, in which enters a roller or other stud carried by
an arm D, see Fig. 1, fast on a rock-shaft D³, extended through a bearing D³
forming part of the head A, the said rock-shaft at its front end having a feed-
arm D, grooved at its front face at 40, as represented in Fig. 44, to receive the
foot of a hollow stud D' fitted to slide in the said groove, the said stud having
screwed into and through it a stud-screw D, the inner end of which meets the
arm D, the stud being embraced loosely back of the screw-head by two like
blocks D', the flat faces of the said blocks entering and sliding in a slot D³ formed
between a part of the rocking head B and a finger B, the latter being adjustably
connected therewith by a suitable set-screw B", the connection between the
finger B and the head B being further effected by a tongue on one entering a
groove in the other, adjustment of the finger B compensating for wear of the
blocks and stud.
As the rock-shaft D' is vibrated, it will vibrate the frame B about a suitable
circular hub or projection Box, see Fig. 1^ forming part of the head A.
The cam D at its front side has a cam-groove, represented by dotted outline in
Fig. 5, said cam-groove receiving a roller or other stud f', at the inner end of an
arm, the hub of which is suitably attached, as by a pin f to a rock-shaft f
sustained in suitable bearings f' of the head.

page_text: The outer end of this rock-shaft has suitably attached to it a toothed segment f*,
see Figs. 1 and 2, the teeth of which engage suitable teeth, see Fig. 2, of the awl-
carrying-bar f, the latter being provided at its lower end with a suitable awl or
feeding point to feed the material resting on the horn or other work-support
below the foot b*.
The lower end of the awl-carrying-bar is slotted at 6, see Fig. 9, to constitute a
clamp, and the awl is held in position by means of a set-screw 7 screwed through
the awl-bar, and the awl may be moved laterally in the said slot to place it at the
proper distance from the nose or guide E³, see Fig. 11, into which the nail to be
driven is led from the end of the raceway F to be described, the said nose containing
a nail passage, the driver entering the said passage and striking the head of the
nail therein.
This adjustment of the awl laterally provides for making a hole in the material
at the proper distance from the last nail driven, or, in other words, enables the
spacing of the nails to be determined correctly and finely.
The lower end of the awl has to be steadied, and to do this I have provided. a
guide E', which is adjustably attached by the screw 8 to a flange 9 forming part of
the nose or nail-receiving block E, the latter being attached to the rocking frame B
by suitable screws, as 10, in holes 10*.
The awl guide E' referred to, and as shown best in Fig. 8, in section, has a
series of holes 12, either one of which may be entered by the awl, in its adjustment,
as provided for, in the slot in the awl-bar, the guide having, it will be understood,
any suitable number of holes at the proper distances apart.
I have shown the nail-receiving block detached in Fig. 11, and it will be noticed
that it has a nose 14, which in practice is adapted to enter a slot in the foot b₁.
The nail-receiving block and its nose travel with the material in the direction of
the feed thereof while the awl is in the material, the horn at such time being
depressed to release the work, as provided for in the said application.
Herein the rocking frame B is provided with suitable bearings g, for a stud g',
on which, as herein represented, is clamped by a screw g³ a lever g', provided at its
upper end with a roller or other stud 9', which bears against a cam face o forming
part of the disk e, the said disk being enlarged sufficiently beyond the size shown
in the application referred to, to present this cam surface outside the lifting cam e¹.
A suitable strong spring 98, attached to the frame B, acts upon a suitable
stud 9' forming part of the lever g³, and serves to keep the said roller 9' against
the cam.
The lower end of the lever g³, see Fig. 3, has attached to it a gate or
separator g, it having a slot 16 to embrace the ear or prong 17 at the end of the
Faceway F.
The nail-receiving block is notched or shouldered at two places, 18 and 19, see-
Fig. 11, to receive the two prongs 17 and 20 at the lower end of the raceway, thus
forming a tongue and groove connection between the block and the discharge end
of the raceway.
The movable frame B has a suitable hollow ear to receive the stud F, upon
which is clamped by a screw F the split hub of a carrying frame F*, suitable
set-screws 23 acting upon suitable projections 24 extended laterally from the
raceway to confine the latter in working position.
This frame F is bored out at 25 to receive loosely a guide-rod F³, the said
frame and guide-rod being splined, however, one to the other, to prevent rocking
movement of the frame F yet permitting the said frame to slide upon the said
guide-rod when the rocking frame B is being swung during the feeding operation.
The guide-rod F referred to has a hub which embraces a pin 27, carried
by a lever G, mounted loosely upon a stud or stationary shaft G, held in
suitable bearings G³, the outer end of the said .lever G having a bearing in
which is mounted the shaft G', to which is connected the rotating lifter or
drum G, provided with lifters or shelves G' which pick up the loose nails and
drop them upon the shelf G fixed to the hopper G*, and in communication
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page_text: .
.
with the upper end of the raceway F so as to enable the nails dropped therein to
fall on the upper end of the raceway.
The shaft G has a pulley G', see dotted lines Fig. 2, which receives a belt G³,
driven by a pulley G, fast on a toothed gear Go, loose on the stud G', the said
toothed gear being engaged and driven by teeth h, herein represented as made in
the hub of the cam D.
The hopper G* is shown as a fixed part of the lever G.
The hopper is shown as a disk concaved at its front side, and at its upper side
it has a box-like projection G down through which the nails are discharged into
the nail-pot composed of the disk and the lifter referred to.
The face of the disk-like portion G* is notched, see Fig. 2, to receive and guide
the upper end of the raceway, the latter, by its connection with the frame Bas
described, sliding in the said notch with the said frame during the operation of
the machine.
The lever G has suitable bearings for a clearer shaft n, provided at its rear end
with a pulley n' driven by a belt from a pulley n moving with the pulley G.
The front end of this clearer shaft has a clearer herein represented as composed
of two toothed disks n', n³, made so merely for convenience of manufacture, the
said two parts being represented as connected by a pin ne on one entering a hole in
the other part, see Fig. 6.
"
The larger part of the clearer, is provided with a series of conical teeth, as
best shown in Fig. 64, adapted to sweep over one of the beveled sides of the top of
the road-way so as to remove any nails lodged crosswise on the raceway, the other
smaller part of the clearer having ratchet-shaped teeth which are located
immediately above the slot in the raceway so as to dislodge any nails coming down
in the slots with their heads not properly seated to ride in the raceway, or those
sliding down thereon point or head foremost.
The lever or frame G has a toe 201, shown by dotted lines Fig. 5, which acts
against a lug 202 fixed with relation to the frame, and as stated, the lever is
loosely mounted on the stud G¹
This loose mounting of the lever is of material advantage, for thereby it is
possible to readily remove the said lever, and the hopper and its attached parts
from the machine.
The operator, to start the machine, puts his foot upon a treadle, lifts the rod A
and causes the beveled upper end C³ thereof to close the clutch and the said clutch
will remain in firm engagement until the shaft C2 has been rotated sufficiently to
perform its cycle of operations, for the teeth B1 of the rod acting on the toothed
end of the three-armed lever, of which the sleeve 133 forms the hub, moves the
Baid lever instantly in a direction to remove the brake shoe from the brake
wheel C, and at the same time the roller stud B is moved away from the cam B
so that as the latter starts it will not be held by the roll, but soon after the cam B°
starts the part thereof of greatest diameter acts on the roller stud and keeps the
rod A fully elevated and the clutch pulleys in firm clutch until the depressed or
lowest part of the said cam again arrives opposite the roller stud B³..
In this way it is immaterial when the operator removes his foot from the treadle
and releases the rod A during each rotation of the shaft C. ·
The teeth at the edge of the awl-bar are so cut or made as to enable the head- B
to oscillate with the awl during the feeding movement thereof.
The lever arm B7 and sector, constitute a locking device for the clutch rod A*0.
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 The use in a nailing machine, of a driver-bar, a driver, a nose, an awl-bar
slotted transversely at its lower end to constitute an awl-receiving slot, a clamp,
and an awl adjustable in said 'slot' toward and from the driver, substantially as
d'escribed.
-L

page_text: 2:-The use in a nailing machine, of a driver-bar, a driver, a nose, an awl-bar
slotted transversely at its lower end to constitute an awl-receiving slot, a clamp,
an awl adjustable in said slot toward and from the driver, and a guide for the awl
between its ends, substantially as described.
3. The use in a nailing machine, of a pivoted head provided with a projection
to leave a slot, a rock-shaft having a grooved arm, and a stud made adjustable in
the slot of said arm and provided with blocks to slide in the slot, substantially as
described.
4: The use in a nailing machine, of a rotating cam shaft having at its front
end a driver-bar lifting cam, and a cam located on the plate which carries the
driver-bar lifting cam, a driver, a nose, a separator lever, its separator, and a
roadway for the nails to be driven, substantially as described.
5-The use in a nailing machine, of a pivoted head carrying the driver and
awl bars and the nose, a separator lever movable with the head, a roadway, and a
hopper having a shelf located above the receiving end of the roadway, substantially
as described.
6: The use in a nailing machine, with an arm provided with an attached disk-
like portion having a hopper fixed to it, a rotating shaft having a lifter attached
thereto and provided with buckets, a road-way, a delivery plate attached to said
disk-like portion; and a nose and pivoted head, the latter in its movements
causing the roadway to be reciprocated independently of said delivery plate, sub-
stantially as described.
7: The use in a nailing machine, of a nail pot, its carrying arm, a head having
a stud, a carrying frame, and a guide rod on which the roadway and its carrying
frame is free to slide, the said guide rod being jointed to the said nail pot carrying.
arm, substantially as described.
:-
8 The use in a nailing machine, of a slotted roadway to conduct headed nails,
two clearers, one clearer having bevel pointed teeth and the other having ratchet
teeth, and means to move the said clearers, substantially as described.
9: The use in a nailing machine, of the main shaft; nail driving mechanism ;
a brake pulley connected to said shaft, a brake shoe, a three armed lever, one arm
having a series of teeth, and being engaged by the rod, to operate, substantially as
described.
Dated the 24th day of January 1893
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicant.