US1527361A - Babbitting device - Google Patents

Description

Feb. 24, 1925.

E. W. JONES ET AL BABBIT'IING DEVICE 2 Sheets-Sheet 1' Filed Nov Feb. 24, I 925.

E. w. JONES ET AL BABBITTING- DEVICE Filed Nov. 9, 1922 2 Sheets-Sheet 2 Patented Feb. 24, 1925.

UNITED STATES PATENT OFFICE.

ERNEST 11V. JONES AND HORATIO' W. SMITH, OF SAN JOSE, CALIFORNIA,

BABBITTING DEVICE.

Application filed November 9, 1922.

To 61- whom it may co'ncem:

Be it known that we, Ennns'r "W. J ONES and Hona'rm 1V. SMITH, citizens of the United States, and residents of San Jose, county of Santa Clara, State of California, have invented a new and useful Babbitting Device, of which the following is a specification. l

The present invention relates to improvements in babbitting devices and has particular referenceto a device for babbitting the crank pin bearing of a connecting rod although it should be understood that the same device with certain slight modifications might be used for other purposes. The device described in the present application constitutes an improven'ient on a device disclosed in the co-pending application, Serial Number MTAOF) filed in the name of Ernest V Jones, one of the co inventors in the present application.

The particular object of the present in vention is to provide positioning means for the bearing container of a connecting rod and includes several features. Among the principal features of our device may be mentioned means for supporting the conneoting rod in operative proximity to a centering device for the bearing container with freedom of universal and of sliding motion, said supporting means being adapted to be made rigid after a desired position has been obtained by a slight turn of two nuts, one nut holding the rod against unir versal motion and the other nut holding it against sliding motion. The two nuts while closely associated are adapted to act independently of each other.

A further feature of the present inven tion is a centering device allowing of delicate adjustment.

A further feature of the present invention is an arrangement allowing the bear ing container to be adjusted in such a manher that the axis of the babbitt bearing runs exactly parallel to the ax's of the wrist pin bearing at the other end of the connecting rod.

Further features and advantages of our device will appear as the specification proceeds.

The preferred form of the present invention is illustrated in the accompanying drawings in which Figure 1 shows a side elevation of the same, Figure 2 a vertical section through the principal working mech- Seria1 No. 599,918.

anism, Figure 3 a transverse vertical section through the supporting means for the connectlng rod and Figure 4 a plan view of a portion of our device shown on the right hand side of Figure 3. While we have shown only the preferred form of the in vention it should be understood that various changes or modifications may be made within the scope of the claims hereto attached without departing from the spirit of the invention.

Our device is preferably supported on a single post (1) allowing of free access to any of the working parts of the device. A horizontal bearing (2) at the top of the post (1.) supports av horizontal shaft (3) emanating from the frame; (t) which latter may be rotated on a horizontal axis and secured in any desired position by means of a nut The vertical spindle (7) is supported in two bearings (8) and (9) of the frame and is capable of endwise motion within the supports. The latter motion is imparted to the spindle by means of the handle (11) which allows the shaft to be rotated and the external threads (12) to engage internal threads in a stationary member (13). The particular construction of the threaded engagement plays no part in the present invention which is confined to positioning means for the connecting rod and centering means for the bearing container and need therefore not be described in detail in the present invention.

The frame l) also supports two horizontal bars (let) in spaced and parallel relation to each other, the two bars being disposed a suitable distance below the lower support (9) for the spindle (7) in such a manner that the axis of the spindle passes midway between the two bars.

A yoke shaped member (16) sagging in the center is supported on the two bars which are preferably of circular cross section with freedom of sliding motion and provides a seat (17) of spherical form for the clamp (18). The latter comprises a lower clamp member (20) having a spherical bottom so as to engage the seat (17) with freedom of universal motion and a saddle (19) adapted to be drawn toward the lower member by means of bolts (21) engaging corresponding flanges of the two members of the clamp. The clamp is of suitable size to accommodate an intermediate portion of the connecting rod (22). It is hold in place by means of a bolt (23) engaging the spherical bottom of the lower clamp member with its head which is also spherical in shape and extending downwardly through the yoke (16), a nut (24) having a long sleeve (26) hearing on the under side of the yoke (10) being adapted to tighten the engagement so as to prevent universal motion of the clamp relative to its seat. To lock the yoke (16) against sliding motion on the bars (14) we provide a second yoke (27) engaging with its extreme ends the heads (28) of studs (29) slidabl-y supported in the ends of the yoke (16) so as to frictionally engage the bars (14). Springs (31) normally tend to force the studs away from the bars so that the studs normally do not interfere with the sliding motion of the yoke (16). The studs may be forced into. frictional contact with the bars (14) however by the tightening of the nut (32) on the sleeve (26) which forces the yoke 27) upward and with it the studs i The' device thus far described provides means for supporting the connecting rod with freedom of universal motion and of sliding motion and allows either motion to be prevented independently by the tighteir ing of a nut. Since the frictional engagement between the various parts may be loosened and intensified to suit conditions and requiren'ients the device is capable of very line adjustment.

The connecting rod is placed into the clampin such a manner that the bearing container extends toward the post (1), with its axis approximately aligned with the axis of the spindle To center the bearing container we use the device shown in detail in Figure 2. It consists of a centering bar (36) adapted to be inserted into the spindle (7) which for this purpose is provided with a recess (37) and to be secured in place by means of the threaded engagement shown at On this centering bar are slidably supported two centering spiders (39) adapted to engage the bearing container from opposite sides and to be forced toward each other by the nut (41) threadedly engaging the lower end of the center ing bar a spring (42) being provided to render the engagement slightly flexible.

For a successful babbitting of the hearing container it is necessary that the axis of the babbitt bearing runs parallel to the axis of the wrist pin bearing (43) at the other end of the connecting rod which receives the wrist pin (45) extending transversely through the piston (48). Vi e provide special means for obtaining this result in. the squaring plate (44) pivotally supported on one of the bars (14) as shown in Figure 3 and provided with a recess (46) adapted to engage the connecting rod (22) when the squaring plate is swung into position between the two bars (14). The squaring plate which is disposed at a right angle to the bar supporting the same is slidable on the bar and may be adjusted so that its outer flat surface (47) touches the inner end or skirt of the piston' (48). If the two bearings of the connecting rod are parallel the squaring plate and the skirt of the piston will contact all around but if the two bearings are not parallel due to a slight bend in the connecting rod the skirt of the piston will touch the squaring plate at one point only and to secure alignment it is necessary toslightly raise or lower the spindle (7) loosening for this purpose the nut (24) so as 11 to allow of slight universal motion of the clamp (18) relative to its seat (17).

To hold the bearing container in place after it has been positioned we provide means in addition to the clamp- (18) adapted to directly engage the bearing container so as to prevent any vibrations of the same. This means is shown in Figure 3 and comprises a plate (51) 011 either side of the bearing container adapted to be forced against the latter by means of the screws threadedly supported in blocks (50) provided with milled heads The engagement between the screws and the plates (51) is such that the plates may be readily removed from the screws and are ca pable of assuming within reasonable limits any slant-ing position adapted to bring them in contact with the outside of the bearing container over an area as large as possible. It comprises a recess (54) in the plates for each screw adapted to receive the point (56) of the same with a plurality of rings (57) interposed. The rings are made of spring material and are slightly compressed when the points are inserted into the recesses. They are held against longitudinal motion on the points of the screws by small peripheral grooves on the latter. This arrangement gives flexibility to the engagement; and allows the plates to be removed by the exercise of moderate force.

At times it may be desirable to remove the bearing after the same has been cast for the purpose of allowing the machine to be used for another bearing while the lll'SL hearing cools oil". In this case it is of extreme im portance of course that means be provi: at permitting of the return of the IGH'IOYCd bearing for the finishing operation to the c);- act place where it was before. To acconiplish this we provide a longitudinal pin hole (61') in the yoke (16) which pin hole prei' erably is situated near one of the bars (14) and runs parallel to the same. It is occupied by a pin (62) extending beyond the yoke (16) in both directions and pref-1 tapered as shown at (63) in Figure 4. This pin is normally slidable in its hole but niav be held against rotation by means of a set loo screw (64) adapted to force av block (66) against the pin. If it is desired to temporarily remove the bearing it is only necessary to push the pin forward until it makes contact with the block (50) and to secure it in that position by means of the set screw (64). After this: has been done the whole positioning device may be removed together with the connecting rod and can easily be re turned to its exact position by means of the pin (62) for it will be readily seen that when in returning the device the point of the pin is brought in contact with the block (50) the whole positioning device must occupy the same position it occupied before.

The operation of the device is as follows: the connecting rod from which the old babbitt bearing has been removed is placed on the lower clamp member (20) and the upper clamp member (19) screwed down on the same. The nuts (2%) and (82) holding the clamp against universal and sliding motion are loosened suiiiciently to allow 0t adjustments. The yoke member (16) is then telescoped forwardly or rearwaii'dly as the case may be. to approximately bring the center line of the bearing container in alignment with the axis of the spindle (T) for wnich purpose it may also be necessary to swing the connecting rod on the vertical shaft or bolt (23). After the correct position has been approximately obtained for the hearing container the upper centering spider (39) is placed on top of the same and the centering bar passed through the hearing container and the upper centering spider into engagement with the spindle (7). After the centering bar is well secured by being screwed into the spindle the lower centering spider (39) is brought in contact with the under-side of the bearing container and the nut (41) screwed upwardly to tighten thespring (4:2) and to thereby force the two centering spiders towards each other, thereby centering the bearing container.

Next the squaring plate (414-) is swung into posit-ion between the two bars (14;) with its recess (46) engaging the connecting rod and its face in contact withthe piston. It the face of the squaring plate touches the skirt of the piston all around the nuts (24) and (32) for securing the clamp in place may be tightened without any further adjustment. If however the skirt touches one point only it would indicate that the axis of the wrist pin is not parallel with the axis of. the spindle (7) and it becomes necessary to either lower or raise the latter to obtain the proper adjustment. Thereafter the two nuts (24) and (32) may be tightened and the bearing container is now in the proper position to receive the babbitting material. To hold it firmly the plates (51) may be forced against the bearing container by means of the screws 52).

I claim:

1. Positioning means for a rod of the character described, comprising a clamp for holding the rod, a seat for the clamp allowing of universal motion of the latter relative to the former, and means for holding the clamp to its seat adapted to be tightened when the clamp has been positioned.

2. Positioning means for a rod of the character described, comprising a clamp for holding the rod, a seat for the clamp spherically engaging the same and means for holding the clamp to its seat with freedom of universal motion adapted to be tightened when the clamp has been positioned.

8. Positioning means for a rod of the character described, comprising a clamp for holding the rod, a seat for the clamp spherically engaging the same and a bolt extending through the clamp and the seat allowing of universal motion of the former relative to the latter having a nut thereon adapted to bear against the seat for binding the clamp to the same.

4:. Positioning means for a rod of the character described, comprising aclamp for holding the rod, a seat for the clamp spherically engaging the same, means for slidably supporting the seat, means for holding the clamp to its seat with freedom of universal motion adapted to be tightened when the clamp has been positioned and means associated with the latter means for locking the seat against sliding motion.

5. Positioning means for arod of the character described, comprising aclamp for holding the rod, a seat for the clamp spherically engaging the same, means for slidably supporting the seat, a bolt extending through the clamp and the seat allowing of universal motion of the former relative to the latter having a nut thereon adapted to bear against the seat for binding the clamp to the same and a second nut externally engaging the first and having means associated therewith for locking the seat against sliding motion.

6. Positioning means for a rod of the character described, comprising a clamp for holding the rod, a seat for the clamp spherically engaging the same, means for slidably supporting the seat, a bolt extending through the clamp and the seat allowing of universal motion of the former relative to the latter having a nut thereon adapted to bear against the seat for binding the clamp to the same, frictional means for locking the seat against sliding motion and a second nut externally engaging the first and having means associated therewith for rendering the frictional means active.

7. In a device of the character described, a clamp seat, means for slidably supporting the same and frictional means for locking the seat against sliding motion, comprising pins frictionally engaging the supporting means, spring means for normally rendering the friction ineffective and threaded means associated with the pins adapted to intensify the frictional contact.

8. In a device of the character described, a clamp seat, two parallel members for slidably supporting the same, pins guided in the seat frictionally engaging the parallel members, a yoke support for the pins, spring means for normally rendering :the frictional engagement ineffective and threaded means adapted to actuate the yoke member for intensifying the engagement so as to lock the seat against sliding motion.

9. In a babbitting device, means for supporting a connecting rod of the character described at a point intermediate of its length with freedom of universal and of sliding motion.

10. In a babbitting device, means for supporting a connecting rod of the character described at a point intermediate of its length with freedom of universal and of sliding motion for positioning purposes and means for holding the rod against universal motion having means associated therewith for independently holding the rod against sliding motion.

11. In a babbitting device of the character described, positioning means for a rod .having a bearing container thereon, comprising means for supporting an intermediate portion of the rod with freedom of imiversal and sliding motion, centering means for dis posing the bearing container in a desired position and means for independently locking the rod against universal and against sliding motion.

.12. In a device of the character described, centering means for a bearing container on a connecting rod or the like, comprising a spindle, centering spiders associated therewith adapted to engage the bearing container from opposite ends and means for yieldingly forcing the spiders toward each other whereby the bearing container is centered relative to the spindle.

13. In a device of the character described centering means for a bee ing container on a connecting rod or the like, comprising a spindle, a centering bar adapted to be coaxially supportedin the spindle, centering spiders associated therewith adapted .toengage the bearing container from opposite ends and means for forcing the spiders toward each other whereby the bearing container is centered relative to the spindle.

14. In a device of the character described centering means for a bearing container on a connecting rod or the like, comprising a spindle, a centering bar adapted to be coaxially supported in the spindle, centering spiders associated therewith adapted to engage the bearing container from opposite ends and means for yieldingly forcing the spiders toward each other whereby the bearing container is centered relative to the spindle.

15. In a babbitt-ing device for the bearing container at one end of a connecting rod formed with a wrist pin hole at the other end, a spindle mounted for endwise adjustment, means for supporting an intern'iediate portion of the rod with freedom of universal motion so as to bring the bearing container in operative proximity to the spindle, means associated with the spindle for centering the bearing container relative to the spindle and means for gaging the parallelity of the wrist pine hole relative to the spindle allowing parallelity to be established by end wise adjustment of the spindle.

16. In a babbitting device for the bearing container at one end of a connecting rod having a piston pivoted to its other end, a spindle mounted for endwise adjustment, means for sup-porting an intermediate portion of the rod with freedom of universal motion so as to bring the bearing container in operative proximity to the spindle, means associated with the spindle for centering the bearing container relative to the spindle and means contacting the piston for gaging the parallelity of the piston pivot relative to the spindle allowing parallelity to be cstablis'hed by endwise adjustment of the spindle.

17. In a babbitting device for the bearing container at one end of a connecting rod having a piston pivoted to its other end, a spindle mounted for endwise adjustment, means for supporting an intermediate portion of the rod with freedom of universal motion so as to bringthe bearing container in operative proximity to the spindle, means associated with the spindle for centering the bearing container relative to the spindle a d a squaring plate pivoted to swing in a plane parallel to the axis of the spindle adapted to be placed against the piston for gaging the parallelity of the piston pivot to the spindle allowing parallelity to be established by endwise adjustment of the spindle.

ERNEST IV. JONES. HORATIO IV. SMITH.

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