US391527A

US391527A - Tereitoey

Info

Publication number: US391527A
Authority: US
Publication date: 1888-10-23
Anticipated expiration: 1905-10-23

Description

(No Model.)

J. A. GOWAN.

STAMP GUIDE.

No. 391,527. Patented Oct. 23, 1888.

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JOHN A. GCNVAN, OF BUTTE CITY, MONTANA TERRITORY.

STAMP-GUIDE.

SPECIFICATIOIT forming part of Letters Patent No. 391,527, dated October 23, 1888.

Application filed April 18, 1858. Serial No. 271,086. (No model.)

To all whom it may concern.-

Be it known that I, JOHN A. GOWAN, of Butte City, Silver Bow county, Montana Territory, have invented an Improvement in Stamp-Guides; and I hereby declare the following to be a clear, full, and exact description of the same.

My invention relates to a guide for the stamp-stem of crushing-batteries and a clamp by which the same is held and adjusted with reference to the stampstem and the guiderail, all of which will be more fully described by reference to the accompanying drawings, in which- Figure 1 is a perspective view showing the wooden bushing and the clamp surrounding it. Fig. 2 is a side view showing the wooden bushing, the stamp-stem which passes vertically through it, the clamps, and right and left hand screw, also the guiderail and crosshead bolts. Fig. 3 is a View of one end of the cast-iron chair which fits the guide-rail and the guide.

Ais the wooden bushing or guide of the bat- V tery stamp-stem. These guides are usually made of hard wood in two halves, in each of which is a semicircular groove or channel, so that when the two are secured together the stamp-stem is inclosed between them, and is thus guided in its vertical movements. These guides are usually secured together and to a guide-rail by bolts with nuts, and the constant jar and shaking of the stamp-stem makes it difficult to keep them tight, in addition to which all the bolts and nuts must be removed if it is necessary to remove the stamp for repairs or other purpose.

My invention is designed to provide an easy, quick, and reliable means for securing the two halves together, adjusting them for wear and attaching them to the guide-rail, so that they may be easily removed when desired. For this purpose the two halves A,which form the guide, are made tapering toward the top and toward the bottom, as shown in Figs. 1 and 2, and at each end is fitted a clamp, B,which incloses the front and two sides. The inner face of this iron clamp is beveled to correspond with the bevel of the guide, so that it may move easily over the surface of the same when desired. Each of these clamps has lugs or arms 0, projecting outward from the center portion, and these projections have slots made in the outer ends, as shown in Figs. 1 and 2.

1) are nuts having projecting lugs or trunnions F upon opposite sides, which fit into the slots above mentioned, and by this means the nuts can readily be removed from the clamps at any time when desired.

G is a right and left hand screw, the screwthreads at the opposite ends of which fit the respective nuts I) of the two clamps at the top and bottom of the bushing. U The central part of this screw may have a hole made through it,with a pin or rod which serves as a lever to turn the screw, or it may be made polygonal so as to be turned by a wrench or by any other suitable or desirable means, and it will be manifestthat when turned in one direction the right and left hand screws at the opposite ends,enteriug the nuts D, will draw the clamps toward each other, and thus draw the two halves of the bushing together with any desired power and close them upon the vertically-moving stamp-stem. The rear or inner ends of the clamps are turned so as to form hooks H, and these hooks engagewith the T- heads I of the bolts J which pass through the guide-rail, and are secured by nuts upon the back of the rail.

K is an iron plate or chair, which has flanges L at each end and sides. The rear flanges of this chair project, so as to clasp the upper and lower sides of the guide-rail, while the front flanges may embrace the upper and lower ends of the guide A, which is thus prevented from moving up or down. The T-heads. I of the bolts J project, so as to lie in grooves or channels M, formed in the sides of the chair, so that when the bolts are screwed up the chair will be held firmly upon the guide-rail, while the hooks of the clamp, above described, will engage the outer ends of these T-head bolts, so as to hold the clamps and with them the guide-bushing firmly in the chair.

It will be seenthat by a simple turn of the right and left hand screw G the clamps will be drawn toward each other upon the inclined faces of the bushing, and will thus draw the bushing together, and also hold it firmly in its place in the chair.

If it is necessary to remove the stampstem for any purpose, the right and left hand screw is turned so as to run out of the clamp-nuts, and the clamps are then turned up and down against the stamp stem, which allows the hooks H at their inner ends to disengage from the T-shaped bolts, thus leaving the bushing perfectly free to be taken out.

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

1. The two-part stamp guide or bushing made tapering toward the upper and lower ends, in combination with the clamps fitting these tapering ends, and the right and left hand screw by which the clamps are drawn toward each other to hold and adjust the bushing, substantially as herein described.

2. The two-part tapering bushing recessed to form a guide-hole through which the stampstem moves, the clamps fitting the upper and lower end of said bushing and having the slotted lugs projecting from the outer faces, in combination with nuts, with the projecting lugs or trunnions fitting said slots, and the right and left hand screw the ends of which fit into said nuts, so as to draw the clamps toward each other, substantially as herein described.

3. The two part stamp-guide made tapering toward the upper and lower ends, the clamps fitting said tapering ends, the right and left hand screw, and the nuts into which the 0pposite ends of the right and left hand screw are fitted to turn, in combination with the T- headed guide-rail bolts, and the hooks formed at the inner ends of the clamps to engage the heads of said bolts, substantially as herein described.

4. The guide bushing, the iron plate or chair having the projecting flanges at the upper and lower ends which engage, respectively,

the upper and lower edges of the guide-rail and the upper and lower ends of the guidebushing,in combination with the T-head bolts, and nuts by which the chair is held upon the guide-rail, and the clamps inclosing the two part bushing and having hooks at their inner ends which engage the outer ends of the T- head bolts, substantially as herein described.

In witness whereof I have hereunto set my hand.

JOHN A. GOWAN.

Witnesses:

J OHN F. Forms, DAVID STERRITT.