US1315513A - kiesel - Google Patents

Description

W. F. KIESEL, JR.

CROSSHEAD.

APPLICATION FILED MAR- 1 Patented Sept. 9,1919.

2 SHEETS-SHEET I.

w. F. KIESEL, 1R.

CROSSHEAD.

APPLICATION FILED MAR-1.1919.

Patented Sept. 9; 1919.

2 SHEETS-SHEET 2 N i m m we J J llllll @N FHH NM attolwcw WILLIAM F. KIESEL, an, 0F ALTO ONAT, PENITIFJYLVANM.

CROSSHEAD.

naiasia. v

Specification of Letters Patent Patented se t. a. rare.

. Application filed March 1, 1919. serial to. states.

To all whom it may concern:

Be it known that 1 WILLIAM F. KmsnL, Jr, a citizen of the Tl'nited States, and residing at Altoona, Blair county, State of Pennsylvania, have invented certain new and useful Improvements in (lrossheads, of which the following is a specification.

This invention relatesto cross heads for engines, particularly to cross heads for steam locomotives or similar engines of large size, and has for its object to provide a device of this character in which the shoes which bear on the guides for the cross head may be readily removed and reflaced without removing the cross head rom the guides or moving it back and forth therealong until it I has been placed in a convenient position relative to the mechanism behind the cross head which often, because of its proximity to the rear of the cross head, prevents the ready removal of the shoes.

In locomotives a common method of securin the shoes to the cross head body has been y means of a series of bolts passing through portions of the shoes and body and securing them together. Because of the fact that the front wheel and other parts of the locomotive are in close proximity to the back or rear face of the cross head it has been impossible to put the bolt heads on its rear face. Obviously, therefore, because of the fact that the bolt heads have been on the front face it has been necessary to back out"the bolts from front to rear and to ac complish this it has been necessary to shift the engine back and forth to find space enough between the spokes of thewheel to permit driving out these bolts. In other types of cross heads similar defects have been noted which render the removal oi a worn shoe very difficult and, in some 1 nstances, requiring the removal of the ent re cross head to effect the replacement. My 1nvention provides a means whereby the removal and replacement of a worn shoe on a cross head may be accomplished quickly and easily without involvinothe removal of the cross head from the guides or shiftlng of the engine.

The invention will be fully disclosed 1n the following description taken 1n connection with the accompanying drawings in which Figure 1 is a side elevation of my mproved cross head, one-quarter of the view being shown in section;

Fig. 2 is a horizontal longitudinal section of the same;

Fig. 3 1s a section on the line 33 of Tig. 1 is a section on the line 4--4E of F g 1; and

1g. 5 is a detail view.

The-cross head comprises a body portion having the usual inner and outer walls 10 and 11, the piston rod socket 12 which isintegral with the walls, and the shoes 13 and 1 1 which are secured to the tops and bottoms respectively of the walls and are adapted to bear on the upper and lower cross head guldes.

The mechanism above described is old and well known and my present invention resldes in the novel means for securing the bearlng shoes to the body in such manner that they may be readily removed for examination or replacement without shifting the cross head to any particular position-on its guides or removing it entirely therefrom.

As the two shoes are similar and are secured in the same manner it will be necessary only to describe in detail the means for attaching one of them, for instance the upper shoe 13. i

The parallel inner and outer walls 10 and 11 are adapted to receive between them the downwardly projecting portion '17 of the shoe 13, this portion constituting substantially a flange or tongue of rectangular cross section fittingtightly in between the walls to prevent sidewise movement of the shoes. The shoe itself is considerably longer than the walls 10 and 11 and the tongue 17 extends beyond both ends of these walls.

Transverse openings 18 and 19 in tongue 17 are so positioned that when the shoe is in place one lies at each end of the walls 10 and 11 and into these openings are adapted to be inserted devices, now to be described for clamping the shoe to the body portion of.

the cross head. Through the opening 18 the gib 20 (Fig. 5) is adapted to extend, one side of which bears against the ends of the walls 10 and 11 and the other side against the tongue 17 when the shoe is secured. The

gib 20 is smaller in cross section than the opening 18 and has offsets 21 to prevent its accidental longitudinal displacement. Through the elongated opening 19 are adapted to extend the gib 22 and the adjusting Wedge 23 which together wlth the llllh" gib 20 comprise a means for clamping the shoe 13 to the body of the cross head. In other words, the gib 20 is a stop limiting the movement of the shoe 13 relative to the body in one direction and the gib 22 and Wedge 23, when the wedge is manipulated, tends, by pressing against the other ends of the body, to move it in the opposite direction, thereby clamping the shoe to the body.

The gib 22 has inclined ofl'set portions 24 which are adapted to bear against the corresponding inclined ends 25 of the walls 10 and 11, and the rear face 26 is tapered to fit against the tapered face 27 of the wedge 23. Projecting from the end of the wedge 23, is a threaded shank 28 adapted to receive a washer 29 and a castle nut 30. It canbe seen that with the nut removed or near the outer end of this shank the gib 22 and wedge 23 may be inserted together into the opening 19 when the shoe isin place, and that when the nut 30 is tightened the wedge will be drawn toward the outer wall 11 of the crosshead, forcing the gib 22 against the ends of the walls and exerting a clamping action. In thus tightening thenut the shoe is also drawn toward the center of the cross head as the inclined faces 24 of the gib 22 have a tendency to slide down the inclines 25 on the walls.

To remove a shoe it is only necessary to loosen the nut 30 or remove the same, back out wedge 23 until the gib 22 may be moved a sufficient distance to enable its oifsets to clear-the walls 10 and 11, and the gib and wedge withdrawn from the opening, whereupon the shoe may he slid longitudinally along the guides and removed.

Instead of providing separate gibs 20 I may make this abutment or stop integral with the shoe.

It'will be seen from the above description that the method of securing the shoes to the body portion of the cross head is exceedingly simple and by manipulating a single nut which is easily accessible from the front of the cross head the shoe can be unlocked and removed. It is never necessary to back out one or more bolts through the spokes of the driving wheel, but the removal can be effected conveniently from the front of the cross head when the latter is in any position.

Having thus described the invention what is claimed as new and desired to be secured by Letters Patent'is:

1. A cross head construction, comprising in combination, a body and a removable shoe, one of said parts having'a tongue and the other a pair of spaced walls receiving said tongue, and means to secure said shoe to said body comprising a stop holding the shoe against movement longitudinally of the body in one direction, and means to force the shoe in sald directlon including a wedge extending transversely of said tongue and body, and means to adjust said wedge.

2. A cross head construction, comprising in combination, a body and a removable shoe, the body having spaced walls and the shoe having a tongue adapted to be received between the walls of said body, and means to secure said shoe to said body comprising a stop holding the shoe against movement longitudinally in one direction, and means to force the shoe in said direction includin a wedge extending transversely of said toggu'e and body, and means to adjust said w ge.

3. A cross head construction, comprising in combination, a body and removable shoe, one of said parts having a tongue and the other a pair of spaced walls receiving said tongue, the tongue having a transverse openmg therethrough, and means to secure said shoe to said body comp-rising a gib extendmg through said opening and acting as a stop holding the shoe against movement lontudmally in one direction, and means to orce the shoe in said direction including a wedge extending transversely of said tongue and body, and means to adjust said wedge.

4. A cross head construction, comprising in combination, a body and a removable shoe, one of said parts having a tongue and the other a pair of spaced walls receiving said tongue, and means to secure said shoe to said body comprising a stop holding the shoe against movement longitudinally of the body in one direction, and means to force the shoe in said direction including a wedge 'and tapered gib cooperating therewith and.

extending transversely of said tongue and body, and means to adjust said wedge.

5. A cross head construction, comprising in combination, a body and a removable shoe, one of said parts having a tongue and the other a pair of spaced walls receiving said tongue, and means to secure said shoe to said body comprising a stop on said shoe adapted to bear against said body and to hold the shoe against movement longitudinally of the body in one direction, and means to force the shoe in said direction including a Wedge and gib extending transversely of'the tongue and body, one of which bears against the shoe and the other against the body, and means to adjust said wedge.

6. A cross head construction, comprising in combination, a body and a removable shoe, one of said parts having a tongue and the other a pair of spaced walls receivmg sa1d tongue and having inclined end portions, and means to secure said shoe to said body comprising a stop holding the shoe against movement longitudinally of the body in one direction, and means to force the shoe in said direction and also toward the horizontal center line of the body, said means including a wedge extending transversely of said tongue and body and adapted to exert pressure against the shoe in one direction and the inclined faces of the body in the other direction, and means to adjust said wedge.

A cross head construction in combination, a body having Walls and a removable shoe having a tongue with a transverse opening therein, said spaced side Walls having downwardly and inwardly inclined transverse surfaces, and means to secure said shoe to said body comprising a stop holding the Shoe against movecomprising spaced side ment longitudinally of the body in one direction, and means to force the shoe in said direction and also toward the horizontal center line of the body, said means including a gib having faces inclined correspondingly to the inclined faces on said body and bearing thereagainst, a wedge extending transversely of said tongue and body and adapted to force said gi b against said body, the wedge and gib extending through the opening in means for adjusting said wedge.

In testimony whereof I aflix my signature.

WILLIAM F. KIESEL, JR.

the abovementioned flange, and 25

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