Untitled record

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iiiifh ||iai£s patent

D E N N I S L. F A L A R D 0 , OF NEW YORK,, N.Y.

Letters Patent Afo. 65,360, dated June 4, 1867.

IMPROVEMENT IN MACHINES FOR DRIVING NAILS, ©lie Scutate refemh to to fee Jettevs latent into raking prt ef φ same.

Be it known that- I, Dennis L. Falaedo, of Cohoes, Albany county, State of New York, have invented an Improvement upon Machines for Bradding Mouldings within panel work or for any purposes to which it can be suitably applied; and I declare the following specification, with the drawings forming part thereof, to be a full and complete description of my invention.

Figure 1 represents the machine in profile, and as applied to its work.

Figure 2, the same in plan view.

Figure 3, a sectional central vertical diagram of the parts of its machinery.

Similar letters denote the same parts of the apparatus.

A is a hollow tube or cylinder, having projecting from one end in the line of its axis a. flat bar or plate, B, (strengthened by a rib, C, underneath it.) This bar is pierced in the axial line of the'tube with a passage or bore D (see fi&lt;r. 3,) sufficient for the free passage of the brads intended to be driven by the machine. To traverse within this passage there is fitted a steel rod, E, attached to a cross-bar, II, which, sliding within the tube, directs and steadies its movement. To the cross-bar is affixed another rod, J, ju range with E, and terminated at its outer end by a knob, K. Between the cross-bar II and the outer end of the tube a spiral spring, L, is fitted, or a pair of them,,to retract the bar with the rods after they shall have been driven or pushed down to the end of the tube. It will be seen from this description that if when the cross-bar with the rod E is drawn up witlnn the tube A, and consequently E nearly withdrawn from the passage D, a brad be introduced within tne passage below the. rod E, a blow upon the knob K will propel the brad out of the passage D and drive it into opposing material. To adapt it to its peculiar-work, of nailing mouldings into panels, the tube, .is .placed m .an oplique position, (as shown,) resting upon a standard, M, having a broad foot, N, for its support upon the panel. In the drawing, (fig.· 1,) P represents in section a panel, Q the stile into which it is flitted, and R the moulding to be nailed in, and into which a brad, S, is represented as being driven by the machine. To steady and guide its movements along the moulding, a gauge, T, is fitted to the standard- M, so as by a set-screw to be adjusted to its proper position. _

Machines for driving of brads upon this principle of construction have been made, but the modes of supplying brads automatically have not been convenient or capacious enough to make the machine as efficient as it should have been. , ,

My invention has reference to the remedying of this defect by furnishing an ample magazine for the brads, with simple and efficient machinery for operating it. Its construction is- as follows: Upon the plate B a stand-, ard, a, strengthened by a rib, b, supports a circular plate or table, c, of such size as may be most convenient for use with the machine. Over the top of this plate, parallel with and close to it, a narrow wheel or cylinder, d revolves upon a spindle, e, which is entered within a socket in the standard. Through the wheel there is cut a set of radial chambers,/, each just sufficient to-hold a brad, which rests upon the surface of plate B, and is moved round upon it by the revolution of the wheel, which thus becomes a magazine holding the brads, the chambers being in number according to its diameter. Through the rib b, in the range of the chambers, a slot or passage, x, of same cross-section is made extending down into the passage D, its purpose being to allow the brads as°thcy arrive over it to drop down therein. The apparatus for revolving the wheel consists of a pawl, p, attached to a bar, g, itself attached to a spring, 7(, wi thin A, which draws the pawl towards A. From cross-bar H a projecting pin or shoulder is fitted, so as to press down the spring h as it (H.) moves downwards within the tube A. y is a check-pawl.. The outer edge of the wheel d is formed into a set of ratchet-tedth, r, into which the pawl operates, the movement of the pawl beings graduated that each motion in one direction shall bring one of the chambers/in line with passage x and bred into the chamber -D-. _ . 11...1.

The operation of the machine will be seen to be thus: The magazine d being applied with brads, the workman liolds the tool or machine in the position shown in fig. 1. Its foot, N, resting upon the surface of the panel, and its aue, T. against the moulding R to be nailed, a brad being in the channel D, he strikes the. knob K with a mallet, forcing down.the rod E-with the brad before it, which is at once driven up to its head into the moulding and stile. Instantly the rod is withdrawn by the'operation of the spring L, which, at the same time, by the upward movement of the cross-bar H, permits the spring A to operate the bar g and pawl ¢, and move t.ie

05,360 magazine d until another brad drops into D. The workman meanwhile moves the tool along the moulding to the proper place for the next fastening, when he repeats the operation described.

By the employment of a duplicate magazine, to.be filled whilst the first is in use, the operation of bradding can be prosecuted without a moment’s delay to the operating workman.