US345680A - Nail-driving apparatus - Google Patents

Description

(No Mod'el.)

T. IOWLER.

NAIL DRIVING APPARATUS..

Patented J'u'ly 20, 1886.

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Zyzzessai INIIIIIII( UNITED STATES PATENT OFFICE.,

THADDEUS FOWLER, OF SHELTON, ASSIGNOR OF ONEIIALF TO THOMAS B.

DE FOREST, Y OF BIRMINGHAM, CONNECTICUT.

NAlL-DRIVING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 345,680, dated July 20, 1886.

Application filed May 8, 1886. Sel-inl No. l\,513. (No mrdcl.)

To all whom it may concern:

Be it known that I, THADDEUs FowLnR, a citizen of the United States, residing at Shelton, in the county of Fairfield and State of 5. Connecticut, have invented certain new and useful Improvements in Nail- Driving Machines; and I do hereby declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in ro the art to which it appertains to make and use the same. My invention relates to certain new and useful improvements innail-driving machines,but is more especially intended to furnish a device I for use in lathing,shingling,and the1ike,which may be used in the same manner as an ordinary hammer, but which shall carry and properly drive in rotation a coil of nails of the character set forth in a certain application for 2o Letters Patent bearing Serial No. 187,982, and filed by me the 8th day of January, 1886; and with these ends in view my invention consists inthe details of construction and combination of elements hereinafter fully explained, and then recited in the claims. f

In order that those skilled in the art to which my invention appertains may fully understand its construction and operation, I will describe the same in detail, referring by letter to the 3o accompanying drawings,forming a part of this specification, and in whichh Figure 1 is a central longitudinal vertical section through my improved driver; Fig. 2,a front elevation of the head thereof, and Fig.

3 a side elevation.

Similar letters denote like parts in all the gures of the drawings.

A is the handle, upon whose rear endtis se cured a case or magazine, B, provided with a o hub, C, around which a string of nails (lettered D) is adapted to be wound. The forward extremity of the series of nails is led outward through a way formed in the handle to the feeding and driving mechanism, as will presently appear. The head E of the driver is recessed from its forward extremity backward, and is secured to the handle by plates F, which extend outward from the end of the latter and embrace the head, one upon either side there 5o of, and by a pin, G, passed through both plates` and head. The parts last aforesaid are so secured together as to allow to the head a slight rocking movement upon the pin. A small spiral spring, H, interposed between the head and handle, keeps them in the relative position shown at Fig. l, except as hereinafter eX- plained.

I is a sliding tubular nose-piece, which lits within the recessed head, as shown at Fig. 1, and which is internally tapered toward its lower end. Upon its inner face is secured a feed-spring, J.

K is' the driver, which is secured within the head vby the passage of the pin G through its upper extremity. At its lower end it is provided with a wedge-shaped toe, which is in the same horizontal plane with the extremity of the head.

L is a loop upon the top edge of the tubular nose-piece, and M `is the feed-lever pivoted at its heel within thehandle,and with its forward extremity engaging with the loop. side of the head is suitably slotted for the cntrance and proper movement of the lever. A push-rod, N, is secured to the feed-lever and extends upward through the handle. At its upper end the head is made in two pieces, as seen at Fig. 2, and aperforatedhatchet-blade, O, is secured between the pieces by bolts or screws I?, passed therethrough.

The operation of my improvement is as fol lows: When the string of nails has been led outward through the handle and downward within the head, its position is as clearly appears at Fig. lk-that is, with the extremity of the driver, and also the end of the feed-spring resting upon the head ofthe bottom nail. The driver is operated by grasping the handle as an ordinary. hammer and striking therewith upon the spot where it is desired to drive the nail. The impact upon the substance into which the nail is to be driven of the sliding nose-piece, forces the latter backward into the recess, andthe driver, descending with the head, drives the nail. The tapered interior of the nose-piece forces the nail against the wedge-point of the driver, whereby the driven nail is severed from the one next above. The

nose-piece is now completely within its recess, and. if the nail be not headed down it may be driven home, as with the ordinary hammer, by such further blows from the driver as may The rear be found necessary. \Vhen the nose-piece is forced back within the head at the time the nail is driven, the feed-spring is carried Aback with it and engages with the head of the nail next above the one driven. To feed the string of nails forward preparatory to the driving of the next nail, pressure is applied by the operator te the p ush-bar, whiclnthrou gh the medium ol' the pivotcd lever, throws the sliding nosepiece out of its recess to the position shown at Fig. 1, when the string is ad vanced downward one nail by the downward movement of the feed-spring, which is in engagement with thenail-head, and is carried by the nosepieee. The rocking ofthehead upon its pivotal pointagainst the action ofthe spiral spring obviates any tendency to bending the nail in process of driving, which might occur from a blow otherwise than square with the end of the nose.

By the use of my improvement the nails con tained therein may be fed and driven as rapidly as blows can be accurately struck therewith.

In addition to its rapidity of action, the machine is entirely portable and exceedingly convenient, since it is operated after the manner of an ordinary hammer.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a machine of the character described, the combination of a head having therein a sliding and internally'tapercd nose-piece, a toepointed driver stationary as to the head and secured within the same, a handle pivotally secured to the head, and provided with a guideway for the nails, a case secured to the handle for containing the coil, a feedspring attached to the nose, and a feed-lever whose forward extremity engages with the sliding nose-piece, and is adapted to throw the same out of its recess in the head, substantially as set forth.

2. rlhe combination, with the recessed head having the sliding nose-piece arranged thercin,oi`the driver secured within the head and extending downward within the nose-piece, the handle pivoted to thehead and having the ease attached thereto, and the feed-lever pivotcd to the handle,and whereby the outward movement of the nose-piece is accomplished, snb stantiall y as specified.

3. The combination,` with the driving and feeding elements arranged as described, of the handle pivotcd to the head and provided with a case, wherein the nails are contained, all arranged as set forth, and for the purpose specified.

4. A nail-driving machine consisting,essen tially, of a recessed head having a driver and a sliding nosevpicce arranged therein, a feeding-lever for the actuation of the nose-piece, a handle secured at right angles to the head, whereby the device may be swung, and a case for the nails sccuredupon the handle, all arranged as described and for the purpose set forth.

5. The combination, with the head divided at its rear end, and provided with a nailde livery and nail-feeding device, of the removable hatchet-blade secured therein by screws or their equivalent passed through both head and blade, substantially as set forth.

In testimony whereofI ailix my signature in presence of two witnesses.

THADDEUS FOWLER.

\Vitnesses:

S. II. Hummm), T. NV. SMITH, Jr.

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