US1024871A - Bearing-adjusting means. - Google Patents

Description

R. D. VALENTINE & H. S. BATTEE.

BEARING ADJUSTING MEANS.

COLUMBIA PLANoaRAPn co APPLICATION FILED OOT- 5, 1911.

Patented Apr. 30, 1912.-

llE/YRYJI m7 5 arro /vfm connecting rod and'the strap and a gib in- UNITED STATES PATENT OFFICE.

ROBERT D. VALENTINE .ANJD S. 'JBAT'IEE, OF MINNEAPOLIS, MINNESOIHA, AS-

SIG-NORS T0 IMEERIAL MACHINERY COMPANY, OF MINNEAPOLIS, .MINNZE S'OTA, -.A

CORPORATION.

BEARING-MJJUSTING MEANS.

Patentedrhprf t), 1912.

1911. Serial No. 653mm.

To all'wkom it mag concern? i Be it known that we, ROBERT D. VALEN-E TINE and HENRY S. BATTEE, of Minneapo-g lis, Hennepin county, Minnesota, have in-; vented certain new and useful improve; ments in Bearing-Adjusting Means, of which the following is a specification.

Our invention relates to, means for talc; ing up the wear of a bearing and particularly the bearing of a connecting rod on, the crank shaft of an engine, and the object of our invention is to provide means; whereby the strap of the rod can be-easily and quickly taken up to compensate for the wear of the bearing.

The invention consists generally in an eccentric bolt passing through the 'end of the sorted between the bolt and the hearing.

In the accompanying drawing forming part of this specification, Figure 1 is a side} view of a connecting rod, partially in sec-? tion, illustrating our invention applied{ thereto, 2 is a top view of one end of the rod, Fig. 3 is a perspective View of thei bolt and gib, showing the curved face of i the gib bearing on the bolt, the end of the bolt being cutaway to illustrate this bear-; ing more clearly. Fig. 4 is a sectional view through the bearing, showing the relative position of the eccentric bolt in the gib.

In the drawing, 2 represents a connecting arod having an end bearing 3 opposite the bearing 4 on the strap 5. This bearing is adapted to receive a crank shaft in the usual way. The ends of the strap have holes 6 therein with flaring walls, into which the bolt 7 is inserted. This bolt is provided with eccentric cones 8 and 9 which fit the flaring walls of the holes 6 and one end of the bolt is threaded, as at 10, to receive a lock nut 11. This end of the bolt is preferably squared to allow the application of a wrench thereto for the purpose of rotating the bolt and loosening or tightening the strap. The cones being eccentrically mounted on the bolt, it is evident that rotation of the bolt will operate to tighten or loosen the strap, the hole in the rod through which the bolt passes being preferably square, as indicated at 12 in Fig. 4, and sufficiently large to allow for the rotation of the eccentric bolt. The wall of the opening 12, as indicated in Fig. 4, contacts with the shank of the bolt, so that by ro tating the bol-t the strap can be moved 'in either direction for the purpose of adjustment.

As shown in Fig. (1, the cone 8 is prefe'rabl'y formed integrally 'on one end of the bolt, while the cone9 iss'plin'ed thereon and adapted to slide lengthwise, so that when the desired adjustment of the strap has been obtained the bolt may be lreld from turning with one wrench and with another wrench the lock nut 11 is tightened to draw the cones against their seats in the ends of the strap and lock the parts securely together. It has been found, who're-an eccentric bolt is used for this "purpose, and the bolt had a narrow bearing directly on the wall of the socket, that it would soon 'cut into the wall and defeat the purpose for which the device was designed. Io obviate this objection we insert a floating gib 13 into the opening 1 2 between the bolt and the wall separating the opening, the gib having a flat surface 14 on one side to bear on the wall and a curved surface 15 on the opposite side to fit the surface of the bolt and form a broad bearing thereon. This Zgib fits loosely in the opening 12 and "may slide from side to side to adapt itself -to the different adjustments of the bolt, presenting at all times a broad bearing surface on the bolt a flat bearing on the wall. Ve

:have idiscovered that where this gib is used that a perfect adjustment of the strap can be obtained and that there will be practically no wear between the bolt and the bearing.

We have shown the gib on one side only of the bolt, but it may entirely inclose the bolt and have hearings on two sides of the opening 12, suflicient space being provided between the gib and the other two walls of the opening to allow for lateral movement in the rotation of the eccentric bolt. This construction will be a mere duplication of the gib shown and illustration is not thought to be necessary.

We do not wish to be confined to the details ofconstruction herein, as they are capable of considerable modification and still be within the scope of our invention.

We claim as our invention 1. The combination, with a connecting rod and strap, of a bolt fitting within a hole in said rod and connecting the ends of said strap, eccentric cones on said bolt, the rotation of said bolt operating to draw said strap toward said rod, and a gib having a face on one side to bear on the end wall of said rod and a surface on the other side to fit said bolt.

2. A hearing including separately movable members, one of said members straddling the other member, a rotating, eccentric bolt extending through both of said mem bers, and a gib having freedom for lateral movement interposed between said bolt and one of said members.

3. The combination, with a connecting rod having a transverse opening therethrough at one end and a bearing strap, of an eccentric bolt passing through the hole in said rod and the ends of said strap, the rotation of said bolt operating to draw said strap toward the end of said rod, and a floating gib interposed between said bolt and the end wall of said rod.

4. The combination, with a connecting rod having a bearing surface at one end and a transverse hole or opening near said bearing and a strap adapted to move toward or from the end of said rod, of an eccentric bolt passing through the ends of said strap and through the hole in said rod, said bolt fitting loosely in said rod, eccentric cones carried by said bolt and engaging the ends of said strap, and a loose gib interposed between the shank of said bolt and the end wall of said rod and having a curved face on one side to fit the surface of said bolt and a flat face on the opposite side to bear on the wall of said rod, said gib being capable of lateral movement in said opening to adapt itself to the rotary adjustment of said bolt.

hole to accommodate itself to the rotation of said bolt.

6. A bearing, including separately movable members, one of said members straddling the other member, a rotating eccentric bolt extending through said members, and a floating gib interposed between said bolt and one of said members, said gib having a curved surface on one side adapted to fitthe surface of said bolt.

7. A bearing including separately movable members, one of said members straddling the other member, an eccentric mechanism for shifting the members relative to each other, said mechanism including a connecting bolt extending through both of the members, tapered eccentrics revolnble with said bolt, means for simultaneously rotating the eccentrics about a common axis, and a gib interposed between said bolt and one of said members.

In witness whereof, we have hereunto set ourhands this 27th day of September 1911.

ROBERT D. VALENTINE. HENRY S. BATTEE. \Vitnesses GENEVIEVE E. SoRENsEN, EDWARD A. PAUL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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