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| For new applications, or improvements, in the art of Making Cut Nails by Machinery, being improvements on a machine, for which letters patent were issued to Jesse Reed, patent #735X, in the year 1807. Also, for a new invention, or application, of a new method of feeding nail machines, by machinery, where the plate is turned; Thomas Odiorne, Malden, Massachusetts, April 3.
Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2,000 of the almost 10,000 documents were recovered. Little is known about this patent. There are no patent drawings available. This patent is in the database for reference only.
“The new applications, or improvements, which I have made, on Jesse Reed's said machine, are as follows. Dispensing with several cumbrous and expensive parts of said machine, I, nearly on a level with the gripping dies, extend two solid and substantial arms from the sides of the stationary jaw, and embracing the moving jaw; and across the extreme ends of said arms, at the back of the moving jaw, I apply an eccentric arbor, so formed as, at a revolution, to give timely motion to the several parts of the machine, in the act of catting, gripping, and heading the nail. On the back end of said arbor, I hang the balance, or fly wheel, and the pulley for the band. I hang the forcing slide box by a strip of steel attached to the back of it and passing through a groove in the jaw behind the moving cutter, is connected to an upright axle, so that the box may play, as on a hinge. I have also varied the mortise for the stationary cutter, making it like that in the moving jaw, reversed, or open, on the back side; so that I place the cutters into each jaw alike, and secure them in like manner.
I head the nail by means of a small lever exclusively for that purpose, in a manner similar to the old way; but it receives its motion from a cam on the main arbor, while the heading set is vibrated by another cam one way, and by means of a spring the other way.
In respect to the feeding of the machine, my invention, application, or improvement, consists, principally, in what I call a circularly vibrating rack rod, operated upon by moveable spring catches, pressed towards the cutters of the nail machine by a separate spring, which is forced back and let forward by a vibrating wedge. The means by which I effect the proper and timely motion of the above-mentioned parts of the feed are as follows. I fix upon the crank, or main arbor of the nail machine, a small pinion, matched by a cog wheel, twice its diameter, which I hang upon the gudgeons of a small crank, connected by a tie, or pitstaff, to the arm of an arbor at one end, which arbor passes through the centre of a friction wheel at the other end, and a loose friction bar, kept in contact with the sides of said wheel by a stiff spring pressing against its centre, so that the bar moves with the wheel. At each end of this bar, I fasten a strap, and attach the other end of each, on opposite sides, to a pulley, supported by a standard, through the centre of which pulley the rack rod passes, as also through a moveable ring that holds the catches, so that as the friction bar plays back and forth, circularly, the rack rod which holds the nippers and plate, vibrates each way half round the wedge, letting the plate into the cutters, alternately. In order to afford proper time to cut the plate, when turned, I fix adjustable stops, each side the friction bar, while the friction wheel moves further on, leaving the plate at rest; which turns again on the first start of the friction wheel, either way. The lateral motion of the hand which directs the plate into the cutters, I effect by a cam, or crank, on the main arbor, giving motion to a knee, to which I fasten the hand, by pivots; or I have effected the same motion adapt ed to the old machine by a toggle, one end of which being attached to the main lever, the other is attached to an upright stud, to which the hand is fastened, as before stated. The rack rod and nippers, I suspend to a top bar, parallel with the rod, by a sliding tie, leading the plate into the cutters. For regulating the point of the nail, I elevate or depress the feeding apparatus by the turn of a screw nut on the top end of an upright rod, the other end of which is attached to a bar at the bottom of the standard; and I stop the feed, while the nail machine is going, with the foot on a treadle, that by means of a purchase, takes the spring off from the friction bar.”
Journal of the Franklin Institute Vol. 4, Jul., 1829 pg. 60-61
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