US594883A - Wire-nail-making machine - Google Patents

Description

(No Model.) '3 Sheets Sheet 1.

0.0;KEsT -WIRB NAIL MAKING MACHINE.

No; 594,883. Patented-Dec. 7, 1897.

we warns PEYERS o0 wowmmo" WASHINGTON. u. c.

' (No Model) 0.0-.KESTY. WIRE NAIL MAKING MACHINE.

No. 594,883. Patented Deo.'7,-l89'7.

ATENT FFTQEG CHARLES O. KESTY, OF SUN BURY, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO LOUISIANA P. JOHNSON AND PIEROY LITTLE, OF NORTHUMBERLAND,

PENNSYLVANIA.

SPECIFICATION forming part of Letters Patent No. 594,883, dated December '7, 1897. Application filed December 12, 1896. Serial No. 615,522. (No model.)

To all whom it may concern:

Be it known that I, CHARLES C. Knsrv, a resident of Sunbury, in the county of Northumberland and State of Pennsylvania, have invented certain new and useful Improvements in \Vire-Nail-Making Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to 1 0 which it appertains to make and use the same.

My invention relates to an improvement in wire-nail-m akin g machines,the objects being, primarily, to simplify the parts of the machinery, to lessen noise, and reduce the cost of the machinery and the expense of the output.

With these objects in view my invention consists in certain novel features of construction and combinations and arrangement of parts,which will be hereinafter described, and

pointed out in the claims.

In the accompanying drawings, Figure 1 is a plan view. Fig. 2 is a View in side elevation, and Figs. 3, 4, 5, 6, and 7 are detailviews.

A represents the frame of the machine, and

2 5 B B are the legs forming a support therefor.

The numeral 1 indicates a crank-shaft j ournaled in pillow-blocks 2 2 0n the frame. This shaft is provided with a balance-wheel 3 and fast and loose pulleys 4 and 5, respectively.

A heading-lever 6 is pivotally connected to the frame of the machine, and a connectingrod 7 extends from the free end of this lever to a crank on the crank-shaft, and in this manner a positive stroke is given the lever with 3 5 each revolution of the crank shaft. This heading-lever carries a hammer 8. This hammer has a screw-threaded shank which turns into a threaded hole in lever 6, this arrangement being provided so that the hammer may be adjusted to just the right relation to the wire holding dies. A jam nut 9 on the threaded shank is employed to lock the hammer in its adjustment. By means of this construction the movement of the parts may be regulated with great precision, andnot only is the thickness of the head of the nail exact, but also the throw of the hammer is such that there is no striking of parts except of the blow of the hammer upon the end of the wire to upset it and form the head. In this way the entire impact falls on the end of the wire and not upon any part of the machinery, as it does in apparatus in which there is employed a sliding hammer.

Cooperating with the hammer are the point 5 5 holding and cutting devices, as Well as the gripping-dies, and these parts willnow be described.

The numeral 10 indicates the header-block. This block is rigidly secured to the frame of the machine by means of bolts 11 11 and is backed on the rear bybrackets 12 12. In this header-block the wire-gripping dies are held by means of the clamp-plate 13, the latter being held in place by suitable bolts 14 14. Both 6 5 the header-block and the clamp-plate are furnished with the undercut inner edges 15 15, and these edges constitute seats or guides for the gripping-dies 16 16. There are a pair of these dies, one being stationary and the other movable, for gripping and holding the wire while it is being cut, headed,'and pointed.- The opening for the wire is half formed in each die, and walls of the openings are furnished with several projections to prevent the wire from slipping in the dies. Between the dies are interposed a pair of spiral springs which tend all the time to normally force the movable die outward to release the wire. This tendency is c0unteracted,however, by lever mechanism when the wire is to be gripped, and this mechanism will now be described. A die-operating lever 17 is pivoted to the frame of the machine at a point op posite or in line with the outer end of the movable gripping-die and extends outward transversely beyond one side of the frame of the machine. A rocking pin 18 has a species of ball-and-socket connection with the movable die and the die-operating lever, and to effect a proper adj ustment of these partswith relation to each other a set-screw 19, having one of the sockets in one of its ends,-is secured into the lever. This is turned by applying a wrench to its outer end and setting the screw to the proper point. A spiral spring 20, interposed between the headerblock and die-operating lever, tends to normally throw the lever away from the movable gripping-die in order to allow the latter to move outward when not otherwise hindered from doing so.

A lever 21 is fulcrumed on a pin 22, projecting from one side of the machine. This lever 21 is in position to engage beneath the protruding end of the die-operating lever, whereby to slide or rock the movable gripping-die inward at the proper time to grip and hold the wire. This lever 21 is operated by means of a peripheral cam 23 on the crankshaft, an antifriction-roller being connected with the lever 21. The cam is so constructed that the lever 21 is vibrated with each complete revolution of the cam. The lever is normally held against the cam by means of a spring 24, and the tension of this spring may be regulated by means of a nut 25.

The numerals 26 26 indicate a pair of point holding and operating levers. These levers are pivotally supported on the adjustable pivots 27 27. These levers are normally held yieldingly apart by means of a spiral spring 28, and they carry at their free ends the pointertools 29 29. These tools are adjusted by means of a series of set-screws 30 30, located at the sides and at one end thereof. The levers 26 26 are operated by means of a pair of operating-levers 31 31, and these in turn by the cams 27 27, located on the outside of the bearings of main crank-shaft 1. The levers 31 31 are provided with antifriction-rollers 28 28, and the cams by engaging them force them outward with each revolution of the cams, the spring 35, between the two levers, acting to hold them yieldingly inward. It may be stated in this connection that one of the cams 27 is a part of the peripheral cam 23, the two together constituting a double or duplex cam. These levers 31 31 are connected with the point holding and operating levers by means of rocking pins 32 32, which have balland-socket connections with said parts.

A steel spring-clearer is connected at one end with the frame of the machine. The free end of this clearer is located in position to remove the completed nail and is operated by the roller 45, attached to the rocking heading-lever. As the rocking lever moves forward the roller depresses the spring-clearer, causing the free end to remove the nail, and when the rocking lever recedes the clearer returns to its normal position. The advantage of the roller is that it bears constantly upon the clearer, so that there is no noise caused by its being constantly struck and restruck by the hammer, as heretofore in one species of apparatus. A set of wire-straightening rollers 47 47 are located at the other end of the frame. The plate 011 which one set of these rollers is located is pivoted, and a cam 36 is employed to lock the plate in the position shown in Fig. 1.

The wire is fed by means of the catch or dog 37. This catch or dog is pivoted to a lever 33. The dog operates in connection with a stationary stud 39 on said lever, and an adj ustable pin l0 on the dog bites upon thewire and feeds it forward. This pin is held in place adjustably by the set-screw 41, and a spring 42 holds the dog yieldingly in position. The lever 38 is operated by means of a pitman 43, which is adj ustably connected to a disk 44 on the main crank-shaft.

The operation is as follows: The wire is inserted between the rollers of the straightening device, and as the machine starts the feed-lever is oscillated. This causes a feed of the Wire to the cutter, pointer, and header. These parts are all operated and controlled by the main crank-shaft. The wire is cutoff the proper length. The head is then formed and then the wire is fed forward the length of the nail. It is then out off and the point formed. The length of the nail is regulated and adjusted by means of setting the end of the pitman 43 relative to the disk 44.

It is evident that slight changes might be made in the form and arrangement of the several parts described without departing from the spirit and scope of my invention, and hence I do not wish to limit myself to the exact construction herein set forth; but,

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

1. In a wire-nail-making machine, the combination with a frame, a pair of point-holding levers pivoted thereto, a pair of operating- levers 31, 31, for operating the pointinglevers, gripping-dies, a die-operating lever, a lever 21 for operating this die-operating lever, and a heading-lever pivoted to the frame, of a rotary shaft having connection with the heading-lever for vibrating it, and cams on the shaft for vibrating levers 21 and 31.

2. In a nail-making machine, the combination with gripping-jaws and a hammer or heading-tool, of a spring-clearer adapted to throw hanging nails out of the machine, a rocking lever which carries the hammer, said clearer adapted to be operated by a roller also carried by the lever, substantially as set forth.

3. In a nail-making machine, the combination with rocking point-holding levers, of operating-levers, cams located outside the bearings of shaft for moving the operating-levers, rocking pins having a species of ball-andsocket connection between the rocking pointholding levers and the cam-operated levers,

10 of shaft, one cam being a double or duplex cam for operating two of the levers, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscrib ing witnesses.

CHARLES C. KESTY.

Witnesses J. SIMPSON KLINE, PIEROY LITTLE.

Images