US662047A - Gage for printing-presses. - Google Patents

Description

' No. 662,047. Patented 'Nov. 20,. I900..

' G. C. WOLVEN.

.GAGE FOR PRINTING- PBESSES',

(Application filed Julyfi, 1900.)

(No Model.)

avwewto'c I 6; 6' Ike/re m flg t'rn ATENT OFFICE.

GEORGE O. .WOLVEN, OF POUGHKEEPSIE, NEW YORK;

GAGE FOR PRlNTlNG-PRESSES;

SPECIFICATION forming part of Letters Patent N 0. 662,047, dated November 20, 1900.

Application filed July '7, 1900. Serial No- 22,837. lNo model.)

To all whom, it may concern:

\ Be it known that I, GEORGE O. WOLVEN, a citizen of the United States,residing at Poughkeepsie, in the county of Dutchess and State of New .York, have invented new and useful Improvements in Gages for Printing-Presses, of which the following is a specification.

My invention relates to improvements in adjustable guides or gages for use in platen printing-presses and embossing-machines.

One object of the invention is to provide an adjustable gage or guide which is simple and cheap of construction, capable of being easily applied and'removed, and adjustable in any direction desired to secure an accurate register, and adapted to engagethe tympan-paper firmly and securely, so as to effectually prevent slipping.

A further object of the invention is to provide a gage which may be adjusted without a perspective view of a portion of a platen,

showing the application of my improved gage thereto. Fig. 2 is'a similar view of the platen with gage detached, showing the slit and slot formed in the tympan-sheet. Fig. 3is acrosssection through the parts shown in Fig. 1. Fig. 4is a side elevation of the gage. Fig. 5 is a bottom plan view of the body portion thereof. Fig. 6 is a perspective view showing a modification.

Referring now more particularly to the drawings, wherein like reference characters designate corresponding parts throughout the several views, the numeral 1 represents a portion of a platen of a printing-press orembossing-machine, and 2 one or more tympansheets applied theretoin any of the ordinary ways. It is a general custom to paste or cement a sing or similar device to the outer tym pan-sheet to gage the position of the paper on the tympan. The position of such gage frequently has to be changed, tearing the paper 2 when removed and necessitating the substitution of a new paper, or, in lieu thereof, gage-pins, which perforate and are liable to slip and tear the paper, have been used. My invention overcomes these and other objections.

The gage comprises two parts or members namely, a gage proper and a clamp therefor. The gage proper is composed of a comparatively long and narrow plate 3, provided at one end with a head or stop 4, against which the paper on the tympan rests when in use, and at its opposite end with a downturned lip or flange 5. The head 4 extends transversely of and at an angle to the plate 3, and its bottom projects outwardly and downwardly, so that its forward edge 6 forms, like the lip or flange 5, a bearing point or portion to engage the paper and sustain the gage. The plate 3 thus lies on a plane above parts 5 and'o, so that the gage has the general appearance of being bowed or curved upwardly and longitudinally with its ends in the same plane and its highest point at the center. The outer or front face 8 of the head is thus also caused to lie at an angle to the plate 3, inclining outwardly and forwardly from its bearing point or edge 6, which is of advantage in preventing the edge of the paper on the platen from slipping up and over upon the top-of the gage, as will be readilyunderstood.

The plate 3 is formed with an opening 9 and a countersink 10 in its bottom around the said opening, as clearly shown in Fig. 5. The clamping device for thevgage consists of a head or button 11, provided with a-screw shank or stem l2,extendingnpwardly'through the opening 9, and a clamping-nut 13 applied to said shank or stem.

In the practical operation of myinvention a comparatively long transverse slit 14 and intercommunicating slot 15, extending at right angles thereto, are formed in the tympan paper or sheet 2 at each point thereon at which a gage is to be applied. In applying the gage the thumb-nut 13 is loosened and the head 11 inserted beneaththe sheet 2' through the slit 14, so that the screw-shank 12 will occupy the slot 15 and the two bearing- points 5 and 6 of the plate 3 will bear upon the upper surface of the sheet. The gage is then adjusted to the proper position along said slot and the thumb-nut 13 tightened up, whereupon the sheet 2 will be forced by the head 11 up into the countersink 10 and the bearing- points 5 and 6 will be caused to bear upon the upper surface of the sheet,

whereby the gage Will be clamped to the sheet in such manner that no slipping of the gage can possibly occur. If after the gage has once been applied and tightened it is desired to adjust the same for accurately gaging the same or a diiferent sheet to be printed,

. this may be readily accomplished by simply loosening up the thumb-screw, sliding the gage along the slot to the desired extent, and then tightening up the nut, when the gage will again be firmly clamped. Thus it will be seen that the gage may be quickly adjusted, applied, and removed by simply tightening and loosening the thumb-nut and without detaching any of the parts. The edge of the paper to be printed or embossed rests against the outerinclined face 8 of the head 4, which by being outwardly, forwardly, and upwardly inclined to extend at an angle to the plate 3 effectually prevents the edge of the paper from working upward. The points 5 and 6 are brought to bear firmly on.the tympan-sheet without drawing or buckling the same, and the construction is such that the v gage may be used also as an extension-guide, if desired. The drawing of the tympan-sheet up into the countersink 1O obviously secures a firm connection and prevents slipping of the gage on the sheet. If desired, I may employ in connection with the gage an adjustable tongue 16, pivotally mounted to swing upon the shank 12 and clamped by the nut 13. This tongue has its outer or free end 17 bent upward and extending beyond the face 8 of the head 4 to guide the paper thereto. The body portion of the tongue is provided with a straight front edge 18, forming a shoulder to abut against the rear face of the head and prevent casual displacement of the finger under pressure.

It will be seen from the foregoing description, taken in connection with the accompanying drawings, that my invention provides embodies important advantages due to its novel features of construction alone, and it will be understood that modifications within the scope of the invention may be made without departing from the spirit or sacrificing any of the advantages thereof.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. A feed gage comprising a body having a countersink, and a clamp having a head to draw the platen-sheet into said countersink, substantially as described.

2. A feed-gage comprising a plate having a countersunk opening, and a clamping device comprising a shank projecting through the opening, a head carried by the shank to draw the platen-sheet into the countersink, and a nut on the shank, substantially as described.

3. A feed gage comprising a generally curved or bowed gage member having end bearing-poin ts'to rest upon the tympan-sheet and a central countersunk opening, and a clamping device comprising a head, a shank carrying the head and projecting through said opening, and a nut cooperating with said shank, substantially as described.

4. A feed gage comprising a generally curved or bowed gage member having end bearing-points to rest upon the tympan-sheet and a central countersunk opening, a clamping device comprising a head, a shank carrying the head and projecting through said opening, and a nut cooperating with said, shank, and a tongue mounted on the shank and having a square edge to bear against the stop of the gage, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

GEORGE O. WOLVEN.

Witnesses STEPHEN G. GUERNSEY,

IRVING ELTING.

a gage which is simple of construction and

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