US1440747A - Lubricating system for crossheads - Google Patents

Description

3 SHEETS-SHEYET l.

T. BOGATCHOFF. LUBRICATING SYSTEM FOR CROJSSHEADS. FILED 1AN.25, 1921.

Jan. 2; 1923.

Jan. 2, 1928A.

T. RQGATGHOFF.

LUBRI-CA-TING SYSTEM FOR. CROSSHEADS.

FILED JAN. 25. 1921*.

` v SVSHEETS-SH-EET 2. M

will!! ',TTORNEY.

Jan. 2, 1923.

1,440,747. T. HOGAIGHOFF.

LUBRICATING SYSTEM FOR CROSSHEADS.

F|LED 1AN.25.1921. 3`sHEETs-'s-1-1EET a.

Patented dan. 2, 1923.

tra -K .fin Para j intern LUBRICATING SYSiElvI FOR CROSZSHEADS.

Original application filed January B, 1920, Serial No. 350,091. Bivided and this application filed. January To @ZZ 'whom t may concern.'

Be it known that 1,'1`Hnononn liomfroiioifr,

` Crossheads, oil which the following is a specivtication, reference being had therein to thel accompanying drawings.

This invention relates to lubricating sys tems ior crossf heads, as torfiustance cross heads ot' locomotives, and the like, and has tor an object to provide improved means for lubricating the iseveral moving parts as the cross head operates.

I A further obj ect ol the invention is to provide a shoe as a part of the organized struc-A ture of a cross head, the shoebeing changeable from top to bottom, and pr f ing parts of the lubricating system in cit such" position.

A further object of the invention is to pio vide in a lubricating system, means for` properly conducting tlielubricant from the upper guide-'way to the several moving parts including the side rod bearing` and the shoes.

A further object of the invention to cover as a division of co-pending application Serial Number 350,091,1iled January 3,1920..

the'lubi'icating features disclosed in said col pending application.

vVlith these and other objects in view the device comprises certain novel units, elements, parts, combinations and arrangements as will be hereinafter more fully described and claimed.

.In the drawings:

`Figure 1 is a vertical view, partly in elevation and partly in section, oi a crossl head embodying the present invention FigureQ is a sectional view through one part of the cross head and an end elevation of the other part, as indicated by line 2 2 of Figure 1;

Figure 3 is a top plan view of the connecting rod withthe lubricant cup cover shown in plan;

Figure 4c is an inverted plan 4view of the shoe `showing the lubricant Anipple and the openings into 4the lubricant storage cham bers;

Figure 5 is a top plan view of the `lubriu cant cup carried by the rod;

Serial No. 439,819.

cated by line 6 6 oi Figures 3 and 5;

Figure 7 is aview of a modification showing the meansot wiping thelubricant from the nipple carried by the shoe, and

vFigure 3 is a sectional view showing a modified type of nipple.

Lilie vcharacters of reference indicate cor.- respondiiig parts throughout .the several views.

1n the said co-pending application,ySerial Number 350,091, the presenty lubricating system is disclosed as a part of the disclosure of the cross head. As shown in that. application, the cross head is adapted to beoperated in conjunction `with guide-ways 10 of :substantially the usual andordinary type. Reciprocating between; the guide-ways 10 is a composite cross head made up of .a body 11 in the form of spacedplates connected by the nipplelQ into an'integral structure, the nipple providing means for connection with a piston rod.` Between the plates 11 oi the body oi" the cross head, the shoes 13 are positioned, the :torm of connection between said co-pending application.

The -upper yguideway 10nis rprovidedy with la screw-threaded socket la proportioned and positioned for connection with a cup l-for introducing the lubricant. r1`he guide is provided with inclined passages `16 communicating with grooves 17 and with cross passages 18, the said passages 1'? and 18 being locatedl in the shoe 13. The guide-way is also provided with a vertical passage 19, likethe passages 16 communicating with the 'socket ,14 and directed 'toward a central vertical ypassage 20 in the shoe. The connection oi the shoe with the body'iny such'that'the'central passageEZO is located directlyover the center of the pin 21 anda boss 22 is formedl at the lower end of ysuch passage, makinga discharge nipple immediately above a lubricant cup 23 in the rod 24E when suchrod is in substantially a horizontalposition.y Asshown particularly at Figure .7, the rod oscillates upon the pin 21as the cross headreciprocates, whereby the lubricant cupmoves; in rellation to the nippl center.

The lubricant cup is preferably provided with a packing, as indicated and to retain. the packing in position. a keeper is provided with means for retaining the keeper over the cup.. rlhis keeper is perforated, as shown particularly at Figures 3 and 5, so that the oil dripping from the nipple 22 upon the keeper passes 'through perforations into engagement with the packing in the oil cup 23. This keeper may be retained in any usual or ordinary manner, but preferably by forming transverse ribs 26 upon the connecting rod upon opposite sides of the lubricant cup 23 and having inturned marginal edges 27 of the keeper 24 engaging such ribs.' 'lo further position this `against longitudinal or lateral movement,springs 23 are provided, .A y

-the lower shoe to the lower way 10. All of preferably being struck up from the material of the keeper and hooked into sockets 29 in the connecting rod, as shown more particularly at Figure 6. Ribs 30 are formed transl versely of the bar, thereby preventing the displacement of the oil which drips from the nipple 23 onto the keeper'25.

As shown 'particularly at Figure 7 the packing Within the cup 25 may extend upwardly through one of the perforations, as for instance Ythe central perforation, as shownat Figure 5,so that it engages against or wipes the nipple at each oscillation of the rod upon the pin.

From the oil cup 23 a'passage 3l extends downwardly to the pin 21 so that the lubri- -cant dripped from the nipple 22 passes through the cup 23, the passage 31 to the pin, provision, as the perforation 32 through the brass, being provided registering with the passage 3l. The lubricant from the bearing of the brass upon the pin 2l, drips from the ends of said brass about the pin and dropping downwardly through the spacesindicalted at 33 in Figure 2, drops onto the lower shoe, as shown in inverted plan in Figure 4. This lower shoe, being a duplicate of the upper shoe, is provided with a plurality o-f chambers 34 with openings 35 positioned to conduct the lubricant dropped upon the shoe into such chambers and with other passages 36 from the chambers to the exterior of thelower shoe, whereby the lubricant passing through the passages 35, chambers 34 and passages 36, lubricates the underside of the lower shoe.l

instead of forming the nipple as shown at 22 in Figures l and 2, a socket 37 may be formed in the shoe, as shown particularly at Figure 8 with a nipple 38 set into such socket, provided with a flanged head 39 for maintaining the nipple in such position. In such position it serves the same purpose and vperforms the same functiony in manner as the nipple 22.

As supplemental to the passages 35 for conducting the lubricant from the top of the lower shoe into the chambers 34, the transverse grooves 40, 4l, 42 and 43 are provided with passages 44, 45, 46 and 47 respectively, which also communicate with the chambers 34, so that the conservation of the oil dropped upon the lower shoe is made more complete by lconducting it from several sources through the several passages into the said chambers 34.

By this means the oil introduced in the cup l5 passes through the several passages in the upper way l() to the shoe and 'through .the shoe into the oil cup 23 and from the oil cup 23 through the several passages to the pin .2L-,dripping from the said pin 21 to the lower shoe and through the several passages to the chainbers 34, .and from the chambers 34 through the moving parts are, therefore, subjected properly to lubrication by the introduction of the lubricant at a 'given point.

What I claim to be new is:

l. ln combination with a cross head having adjustable grooved shoes and guide bars engaged thereby, a pitman pivoted to a wrist pin upon the cross head, said shoes and pitman having oil ducts, the duct in said pitman having an oil pocket from which the same leads to the bearing surface for the wrist pin, a perforated closure over said pocket, ribs projecting from the upper surface of the closure to prevent oil passing over the sides thereof as the cross head reciprocates.

2. .ln combination with a` cross head having adjustable grooved shoes and guide bars engaged thereby, a pitman pivoted to a wrist pin upon the cross head, said shoes and pitman having oil ducts, the duct in said pitman having an oil 'pocket from whichthe same leads to the bearing surface for the wrist pin, a perforated closure having its ioo ends bent to engage parts of the pitman to hold the. closure over said pocket.

3. ln combination with a cross headhaving adjustable grooved shoes and guide bars engaged thereby, a pitman pivotedto a wrist pin upon the cross head, said shoes and pitman having oil ducts, the duct in said pitman having an oil pocketl from which the same leads to the bearing surface for the wrist pin, a perforated'closure having its ends bent to engage parts ofthe pitman to hold the closure overv said pocket, said closure having struck-up ribs tol prevent oil from running over the sides thereof as the cross head reciproca-tes.

4. ln combination with a cross head having adjustable grooved shoes and guide bars engaged thereby, a pitman pivoted to a wrist pin upon the cross head, said shoes and pitman having oil ducts, the duct in said pitman having an oil pocket from-which the same' leads to the bearing surface ofthe wrist pin, a perforated closure having its naief/4'? ends bent to engage parts of the pitman to hold the closure over said pocket, said closure having struck-up ribs to prevent oil from running over the sides thereoic as the cross head reciproeates, and integralngers upon the closure engaging recesses in the pitinan.

5. A orosshead comprising a central portion, upper and lower shoes adjustable laterally relative to the central portion and having transverse and longitudinal grooves, guides in the longitudinal grooves, adjustable securing members in the transverse grooves, said shoes being provided with duets7 the duets of the upper one registering at times with an inlet duct in the upper guide and also provided with a storage chamber communicating through passages With the transverse grooves and with the eXterioroi' the shoes, and a pitnian pivoted Within the Central portion having an opening positioned to receive lubricant from some of the duets of the upper shoe and to drip the excess upon the transverse grooves of the lower shoe.

In testimony whereof I hereunto aiiX my signature in presence of two witnesses.

THEODORE ROGATCHOFF.

Witnesses:

,-J. H. SHAILER,

P. R. SHAILER.

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