US316579A - Stereotype-shaving machsne - Google Patents

Description

(No Model.) 2 SneetS-sheet 1.

J. W. SMITH.

, STBRBOTYPE SHAVING MACHINE. 7 No; 316,579. I Patented Apr. 28, 1885.

\\\\ E I 7 f WITNESSES: INVBNTOR M47 I Q BY; W -ZA-J ATTORNEY (No Model.) 2 Sheets-Sheet 2.

J. W. SMITH. STEREOTYPE SHAVING MACHINE.

N0. 316,579. Patented Apr. 28, 18851 IIIIHHHHI IHM HIIlIHHIIHHIIHIIHIHHHIIHIIIIIIH! Witnsseg;

JAMES W. SMITH, OF CHICAGO, ILLINOIS.

STEREOTYPE-SHAVING MACHINE.

$PECIFICATION forming part of Letters Patent No. 316,579, dated April 28, 1885.

Application filed December 20, 1883. (No model.)

Illinois, have invented certain new and use.

ful Improvements in Stereotype-Shaving Machines; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

Heretofo re the return movement of the shaving-knife in stereotype-shaving machines has been accomplished by the use of a spoke-lever, and the use of a spokelever is inconvenient, because of the trouble it puts the operator to to revolve it after the cutting movement has been performed.

My invention is designed to provide means to perform both the cutting and return movements of the shaving-knife by the employment of steam-power, and by its use either movement can be regulated, as desired, to suit the character of the work being done. Broadly speaking, my invention consists of an oscillating head on the end of the drive-shaft having pinions thereon so arranged that by engaging with a large gear-wheel fast on the end of the rack-actuating shaft they impart a right or left motion to said gear, according to the oscillations of said head. It consists, moreover, of the means and devices for controlling the oscillations of said head.

In the drawings, Figure l isa side elevation of my improved machine. Fig. 2 is a transverse vertical section on the line of the drive-shaft. Fig. 3'is a transverse vertical section on the line 00 m, Fig. 1. Fig. 4. is a detail view. Fig. 5 represents a plan view of my machine.

Reference being had to the drawings, A represents the table-frame; similar in construction to those heretofore used for stereotypeshaving machines, with the exception of the side legs being connected by longitudinal bars A,which are connected at about their centers of length by a cross-bar, a, which latter has lugs projecting downward therefrom, to and between which are pivoted treadles, as shown in Fig. 3, the use of which will hereinafter appear.

The working parts of the machine-that is, theshaving-knife, carrier, andimmediate actuating mechanism, consisting of the racks extending back from said carrier, pinions engaging therewith,and actuating-shaft on which said pinions are made fast-are the same as in the old machine, barring the use of a large gear, B, on one end of said actuating-shaft O.

J ournaled in suitable bearings in or depending from the sides of the table-frame, and passing laterally under the bed ofthe machine, is the drive-shaft D, having a pulley fast on one end, and a pinion, d, fast on the other end, outside of the bearings. This drive-shaft is so placed with reference to the shaft 0 that the pinion cl on the end thereof is contiguous to the periphery of the gear B.

Pivoted and loosely journaled on the shaft D, between itsbearings in the side of the frame A and the pinion d, is an oscillating head, D. This head has loosely journaled on studs projecting laterally therefrom the pinion b, arranged above and meshing with pinion d, the idler c, placed obliquely below and meshing with pinion d, and the pinion e, meshing with and derivingmotion from idler c. It willthus be seen that pinions b and 0 move in opposite directions, and that when the head D is oscillated, so as to bring said pinions alternately into engagement with the gear B,.a forward or return movement of the carrier and cuttingknife is obtained.

Extending horizontally in a direction from head D opposite to the location of the gear B is an arm, D", connected at about its center of length by aswivel-li11k,d,to a lever, f,arranged at right angles thereto, and pivoted near its center of length to a suitable stud extending downward from the side frame. The inner end of this leverf is oscillatingly-connected to the contiguous end of the walking-beam F, which latter is pivoted at its center of length to a suitable stud, F. extending downward from the under surface of the bed of the machine at about its transverse center. The extremities of the walking-beam F are connected .by means of connecting-rods g g to the treadles G and G, respectively, heretofore mentioned as being pivoted to cross-bar a.

Immediately over the extremities of the walking-beam and between the same and the under surface of the bed-plate are the coilsprings h h, designed to keep the ends of the beam F on about the same horizontal plane when the machine is not being used, and to restore the devices to their normal positions after bringing the pinion 1) into engagement with the gear B and urging the carrier forward.

If the return movement of the carrier is desired, the treadle G is pressed upon, thus bringing the pinion 6 into engagement with the gear B and returning the carrier to its first,

position. When not being oscillated, the head D, by reason of its own gravity or the tension of the springs h h, seeks a neutral position and thus disengages both pinions b and e, the peripheries of both of which will thereupon be equidistant from the periphery of the gear B.

By reference to Fig. 1 it will be apparent from the arrows placed upon the pinions of the oscillating head D that their arrangement is for the purpose of giving contrary mo tion to the pinions engaging gear B. As other disposition of pinions will produce the same effect, I do not wish to be confined to the exact arrangement shown. For instance, in Fig. 4 it is shown how, by the intermeshing of pinions b and eand the engagement of b by the drive-pinion d, a like effect will be pro duced.

In order to avoid any likelihood of the operator permitting the racks to move out from under the pinions on the shaft 0 or the head from moving back too far, I connect to or cast in one piece with the oscillating head D an arm, H, extending parallel with the side frame in a direction the opposite to arm D", and have extending laterally inward from the extremities of both arms D and H studs is, on which, if desired, may be journaled frictionrollers, which are engaged and forced downward by a stop, 0, extending downward from the contiguous under surface of the carrier. The end edges of this stop or block 0 are beveled, as shown, so that Whenit strikes the stud k on the end of either arm D or H it forces them down sufficient to oscillate the head D into aneutral'position, and thus stop. the machine. The distance between the extremities of arms D and H corresponds to the reciprocal stroke of the carrier.

Various means may be substituted for the mechanism shown in the drawings and hereinbefore described for oscillating head D, and I do not, therefore, wish to be confined to that set forth; but

What I claim as new, and wish to secure, is

1. In a stereotype-shaving machine, the carrier, racks extending therefrom, shaft 0, having pinions thereon engaging said racks, and large gear B on the end of shaft 0, in combination with an oscillating head loosely jour-. naled on the end of the drive-shaft, and pinions journaled on studs extending from said head which are capable of revolving in opposite directions' and derive motion from said driveshaft and alternately engage said large gear B and the drive-shaft D.

2. In a stereotype-shaving machine, the oscillating head D, pinions b and e, capable of revolving in contrary directions, deriving mo tion from the drive-shaft, and alternately engaging the gear B, the shaft 0, and its pinions, and the arms D and H, extending in opposite directions from said head D parallel with the side of the machine, in combination with the carrier and its rack, said carrier having a stop or block, 0, engaging said arms, in the manner and for thepurpose set forth.

3. In a stereotype-shaving machine, the

combination, with the oscillating head D and arm D, extending therefrom, of the leverf, beam F, treadlesG and G, and rods for connecting said treadles to said beam, in the manner and for the purpose hereinbefore set forth.

4. The combination, with the oscillating head having an arm, D of the lever f, beam F, connecting-rodsgg, treadles G and G, and springs h h, substantially as set forth.

In testimony that I claim the foregoing as my own I hereunto affix my signature in presence of two witnesses.

JAMES W. SMITH.

Witnesses:

JAMES H. OoYNE, FRANK D. THOMASON.

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