US145890A

US145890A - Improvement in feed-gages for printing-presses

Info

Publication number: US145890A
Authority: US
Publication date: 1873-12-23
Anticipated expiration: 1890-12-23

Description

'0. N. MORRIS.

Feed-Gages For Printing Presses.

Patented Dec. 23,1873.

UNITED TA.TES

PATENT OFFICE.

CHARLES N. MORRIS, OF CINCINNATI, OHIO.

lMPROVEMENT IN FEED-GAGES FOR PRlNTlNG-PRESSES.

Specification forming part of Letters Patent No. 145,890, dated December 23, 1873; application filed April 10, 1873.

To all whom it may concern:

Be it known that I, CHARLES N. Monnrs, of Cincinnati, in the county of Hamilton and State of Ohio, have invented a certain Improvement in Feed-Gages for Printing-Presses, of which the following is a specification:

My invention relates to feedgages, having a retreating movement before rising, so as to avoid lifting the edges of the sheets, or otherwise displacing them upon the feed-table. This has heretofore been accomplished by means of a jointed gage-arm, one member of which was rigidly secured in about a horizontal position to the actuating rock-shaft. My improvement consists in the use of a rigid gage-arm, which is pivoted to a vertical short arm of the rockshaft, and combined with a horizontal arm thereon in such a manner that both movements of the gage-arm will be imparted to it positively and directly from the rock-shaft.

Figure 1 is a perspective view of my improved feedgage, showing also a portion of the actuating rock-shaft. Fig. 2 is a vertical longitudinal section thereof, showing the posi-- tion of the gage with reference to the food table and cylinder. Fig. 3- shows a modification in the adjustment of the lifting devices.

The same letters of reference are used in all the figures in the designation of identical parts.

The long gage-arm A, terminating at its extreme end in the gage A is preferably rendered adjustable in length. To this end it is provided with an elongated slot, at, and clamped to a short bar, A by meansof a thumb serew, a. The bar A has, near its outer end, a boss,

aflfitting the slot to of the arm, to prevent lat eral motion of the latter after it has been properly adjusted and secured on the bar A The gage-arm thus constructed is pivoted, by a downwardly-projecting lug on the bar A to the vertical arm B of a bellcrank lever, which is secured to the rock-shaft D by means of a set-screw, d. The pivotal point I) of the gagearm, being thus located in about the same vertical plane with that of the axis of the rockshaft, it will be moved in a horizontal are by the oscillations of the shaft, and consequently a positive longitudinal reciprocating motion will be imparted to the gage-arm.

The oscillation of the rock-shaft D in the direction of the arrow in Fig. 1 first draws the gage A back toward the edge of the feedtable, and then lifts. the arm by means of the horizontal arm 0 of the bell-crank, which, by that time, is brought up against the' end of the adjustable screw E of the gage-arm.

The arm 0 of the bell-crank has a boss, 0, on its upper side, near its extreme end, which comes in contact with the screw E. By adjusting the screw E the point at which the lifting action of the bell-crank shall begin can be readily regulated. This screw may be inserted in the arm 0 of the bell crank, as shown in Fig. 3.

WVhat I claim as my invention, and desire to secure by Letters Patent, is-- The rigid gage-arm A, pivoted to a vertical arm, B, of the rock-shaft D, in combination with a horizontal arm, 0, thereof, substantially as and for the purpose specified.

In testimony of which invention I hereunto set my hand.

CHAS. N. MORRIS.

Witnesses FRANK MILLWARD, J. L. WARTMANN.