US679868A - Nailing-machine. - Google Patents

Description

No. 679,868. Y Patehted Aug. 6, I90

.J. H. SOUTHCOTT.

MAILING MACHINE.

(Application filed Jan. 10, 1900.) (No Model.)

UNITED STATES PATENT O FICE.

JAMES HENRY SOUTHOOTT, OF ADELAIDE, SOUTH AUSTRALIA, ASSIGNOR OF ONE-HALF TO JOHANN HEINRICH THEODORE BRIIGGEMANN, OF

SAME PLACE.

SPECIFICATION forming part of Letters Patent No. 679,868, dated August 6, 1901.

Application filed January 10, 1900. $erial No. 9'72. (No model.)

To all whom it may concern:

Be it known that 1, JAMES HENRY SOUTH- COTT, machinist, a subject of the Queen of Great Britain, and a resident of 196 Gilles street, Adelaide, in the Colony of South Australia, have invented new and useful Improvements in Nailing and Riveting Machines, of which the following is a specification.

My invention relates to certain improvements in machines used in the manufacture of boots and shoes, and more particularly to machines for driving nails, rivets, or tacks into the soles of such boots and shoes.

My invention is applicable either for driving the small rivets or tacks for fixing the soles to the uppers or may be also adapted for driving nails having projecting heads into the outside of the soles of boots and shoes. In this specification my invention will be described as applied to nails; but it will be well understood that it is equally applicable to rivets and tacks, and the term nails may be held to include rivets, tacks, and the like. Hitherto these two operations of nailing and riveting have usually been performed by ontirely difierent machines. It has been found that the machines used for driving small tacks or rivets are not suitable for nails having projecting heads. These nails are usually irregular in shape and size, and their heads being top-heavy they are liable to turn over before coming under the driver by which they are driven into the boots or shoes. the machines at present in use the nails or rivets when separated fall by their own weight into position underneath the driver, by which they are driven into the boot or shoe. The speed of the machine or the rate at which the nails or rivets may be driven is thus limited to the rate at which the nails or rivets will fall when released.

The object of my invention is to provide a machine by which nails may be driven at a greatly-increased speed, thereby efiecting a great saving in time, power, and labor. I accomplish this object by constructing a machine having an improved distributor by which the nails are separated as delivered from the supply-chuteand automatically forced forward one at a time to the driverchannel. This distributor reciprocates backward and forward as the driver rises and falls and mechanically forces the next nail into position beneath the driver as it rises for a fresh blow. Each nail being thus forced into position at each motion of the distributer, the speed at which the machine is driven is not limited to the rate at which the nails will fall by their own weight. For the purposes of my invention I construct a machine having a reciprocating distributer working at right angles to the nail-delivery chute. This distributer is provided from side to side in one direction with a transverse slot arranged at an angle, through which each nail passes and is forced into the driver-channel. In order to prevent the nails engaging this slot as the latter comes into position upon the backward stroke, I provide a sliding shutter which alternately opens and closes the opening. This sliding shutter is worked backward and forward by the reciprocating motion of the (listributer and is so arranged as to keep the outlet of the slot open during the first part of the forward motion and closed during the first part of the backward motion of the distributor. As the driver is raised the nail is forced into position beneath the same and is then driven into the boot or shoe by the downward motion of the said driver.

In order that my invention may be the bet- .ter understood, I will now proceed to describe the same with reference to the accompanying drawings, in which Figure 1 is a plan of the nose or casing of a machine embodying my improvements. Fig. 2 is an end elevation of the same. Fig. 3 is a side view of my improved distributer. Fig. 4 is a plan of the same; Fig. 5, a cross-section of the same on the line Ctb, Fig. 3. Fig. 6 is a back view of the same, showing the sliding shutter. In Fig. 7 are detail views of the sliding shutter. Fig. 8 is a part end view and part side view of the distributor looking direct through the slot, arranged at an angle, through which the nails pass, the direction of view being indicated by arrow 8, Fig. 4. The shading at the right end of Fig. 8 indicates the rear end of body E.

A is the nose or casing of the machine, constructed of steel or other suitable material. This nose or casing A is fitted to the machine as may be required and may be adapted to any suitable device or driving-gear for actuating the driver and awl-bar, all of which being well known and not forming part of this invention I do not propose to describe.

The nails are fed down by a chute'B from a supply-hopper in the usual way and pass into a narrow channel or slot A cut in the casing A. This channel A is of sufficient width to receive the bodies of the nails, but

their heads bear upon the top of the casing, as shown in Fig. 1. The channel A leads direct to the driver-channel G in such manner that as each nail is fed in by the distribu ter it passes im mediately beneath the driver, by the downward stroke of which it is driven into the boot or shoe. The nose or casing A is further provided with an adjustable awlguide D, having a channel D, through which the awl passes. This awl-guide D is recessed to lit the casing A and is held in place by a set-screw D passing through a longitudinal slot D The awl-guide may thus be adjusted toward and from the driver-channel C.-

In order to separate the nails as delivered from the chute B as they pass into the channel or slot A and distribute them one at a time to the driver-channel O, the casing A is provided wilh a recess A arranged at right angles to the supply-chute B and channel A. This recess A extends right through the easing A and is provided with a cover or bridge A forming a part of the casing, as shown in the drawings. The recess is further provided with a guide-pin A engaging a slotin the distributer, as hereinafter described.

Within the distributer-recess A works the distributer E, by which the nails are separated and delivered one at a time to the driver-chan nel. This distributer E is driven forward and backward within the recess A in correspondence with the rising-and-falling motion of the driver within the driver-channel O. For this purpose it is provided with a pin or stud E, by which it is given a reciprocating motion from suitable mechanism operated in the same manner as the driver and awl-bar. The distributer E is provided with a longitudinal slot E extending right through the same and engaging the cover or bridge A of the recess A within the casing A. It is thus held rigidly in position-and afiords a suitable guide for the same. As-

an additional guide the distributer E is provided with a further slot E engaging the pin- A arranged within the recess A as shown 1n Flg. 2. The reciprocating distributer E .is further cut away longitudinally for the greater portion of its length, as shown at E in Figs. 3, 4, and 5, to decrease its weight, but leaving the projecting point E to engage and push forward the nails. It also decreases the length of slot E and leaves the way clear for the passage of nails into slot E them one at a time and force them into position in the driver-channel C, the distributer E is provided with a transverse slot E5, extending obliquely, through the distributer from side to side in such position that as the distributer is reciprocated the end of slot E toward the chute B passes across the lower end of the chute and the projecting point E engages the last nail on the forward motion of the distributer. This slot E is enlarged at its upper portion, as at E", Figs. 5 and 6, for the reception of the heads of the nails as they pass through. As the distributer E moves forward the slot E set at an angle or obliquely through the distributer, engages the body of the nail below its head and forces it from the channel A in the casing A into the driverchannel 0. The enlarged part E of slot E extends obliquely through the distributer in the same direction as the lower part of slot E and one side of said part E operates against the head of the nail, pushing it along, while the point E and lower part of slot E are operating on the nail-shank. By thus operating on the nail-shank and on the nailhead the nail is caused to move in proper upright or nearly upright position with no danger of being pushed out of position by the action of the distributer. The nails are thus delivered to the driver channel 0 upon the forward motion of the distributer E.

In order to prevent the nails engaging the inclined slot E as the latter comes back into position upon the backward stroke, I provide a sliding shutter which closes the outlet of the slot upon the backward stroke of the distributer E. For this purpose the distributer E is recessed at the back for the greater portion of its length, as at E having shoulders E and E respectively, at each end. Within this recess E works a sliding shutter F, having an opening F, corresponding with the outlet of the slot E which delivers the nails. This sliding shutter F is made shorter than the recess E and upon the forward motion of the distributer the end F? engages the shoulder E at the back, and the shutter is carried forward with it. Upon this forward motion the opening F coincides with the outlet of the slot E arranged at an angle, and a nail is allowed to pass through. When the reciprocating distributer E stops to come on the backward stroke, the sliding shutter F, being shorter than the recess E remains stationary until the shoulder E engages the end F jof the shutter F. During the period while this shutter F remains stationary the outlet of the slot E moves back past the corresponding opening F in the shutter F and is thus efiectually closed during the backward motion of the distributen and nails are thus prevented from working back into the same. Upon the next forward motion of the distribu- ;ter E the shutter again remains stationary until the shoulder E again engages the end F of the shutter F and the opening F again ooincides with the outlet of the slot E thereby allowing another nail to pass through as delivered by the forward motion of the distributer E.

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. A distributor having a slot E extending obliquely therethrough from side to side of said distributer,- means for reciprocating the distributor, the distributer having a point E at the front end of slot E means for delivering nails to the distributer in position to be engaged below their heads and moved forward by point E into slot E one side of which slot then engages and moves the nail through, said slot E having an enlarged part E for the nail-heads.

2. The combination in a nailing-machine, of a delivery-channel for nails, a reciprocating distributer E having an oblique slot E therethrough, the distributer having a point E at the forward end of slot E said slot E having an enlarged part E for the nail-heads, the side of the distributer on which point E terminates having a recess E giving a passage-way for the nail-bodies to slot E 3. The combination in a nailing and riveting machine, of a casing having a deliveryslot and adriver-channel, areciprocating distributer movable between said slot and channel, the distributer having a slot E extend-' ing obliquely in one direction through the distributer and adapted to communicate with 3 5 the slot in the casing, point E at the forward end of the slot, the distributer having a portion cut away at E below point E the distributer having a plurality of guide-slots, and corresponding parts carried by the cas- 4o ing moving in said slots.

4;. The combination in a nailing and rivet ing machine of a casing having a deliverychannel and a driver-channel, a reciprocat ing distributer movable between said chan- 45 nels, the distributer having a slot E extending obliquely through the distributor; a slid= ing shutter movable to close and open slot E the shutter being moved by the distributer to close the slot E during movement of the dis- 5o tributer in one direction and to open it. during its movement in the opposite direction.-

5. The combination of distributer E having oblique slot E therethrough, and point E at the forward end of the slot, of means for delivering nails to the distributer,a driverchannel, and a shutter moved by the dis= tributer at the proper times to open and close the slot E the distributer having a partial movement independent of the shutter While said shutter remains at rest.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES HENRY SOUTHOOTT;

Witnesses:

CHARLES S. BURGESS, ARTHUR W. BOWEN.

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