US1820840A - King bolt - Google Patents

Description

Au 25, 1931. T, R, SMITH 1,820,840

' KING BQLT Filed Oct. 2. 1929 INVENTOR ")5 ATTO R NEY- Patented Aug. 2 5, 1931 I i THEODORE B. SMITH, OF ROLFE, IOWA PATENT, OFFICE KING BOLT Application filed October 2, 1829. Serial 1T0. 396,892.

This invention relates to certain novel impro'vem'ents in king bolts and has for its principal object the provision Of an improvedconstruction of this character which will be safe and positive in operation-and economical in manufacture.

"It'isamong the objects of my invention to'p'rovide a king bolt which may expeditiously be installed or removed from operative position and. one which may be used inthe place of any ordinary'king bolt without requiring .any alterations in the mecha-' nisms with whichit is to be associated.- 'A further object'of the invention is to provide a king bolt which may be held in position without employing the usual screw threads and nut construction.

A still further object of the invention is to provide a king bolt construction in which in retaining a spring may be employed so as to maintain and in which:

Fig. lis an elevationalview depicting a preferred form of'constructionfor my in vention; A r .Fig. 2 is a fragmental elevational view of the lower portion of the device as illustrated in Fig. 1 looking in at the righthand side of the device as illustnated in said Fig. 1.;

Fig. 3 is a bottom'plan View of the device as illustrated in Fig. 2;

Fig. 4:,is a view similar to Fig. 2 depicting a modified form of construction; and

Fig. 5 is an elevational View depicting a typical installation of my improved king bolt,

' In the accompanying drawings wherein I have illustrated a preferred form of construction for my invention generically indicates my improved king bolt which includes' a shank 11 and an enlarged head 12 having a polyhedral configuration on the periphery thereof. This kingbolt 10 is constructed in a manner identical with the construction of king bolts of the prior art with the exception that the usual screw threads provided are omitted and the lower end of the shank 11 is bifurcated as indi-' cated by 13 and it is in this bifurcated por-' tion 13 that I arrange my improved construction.

In one of the walls of the bifurcated portion 13 adjacent the lower end of the shank 11 I provide a groove 14- which is arranged to extend transversely of the extent of the opening of the bifurcated portion. Extended transversely of the limb portions of the bifurcated portion through substantially the midpoint of the groove 14 is a pin'15 which is pivotally retained in position.

Mounted on the pin 15 so as to be rotatable thereabout is an annular mounted on the pin 15 at substantially the midpoint of the extent of the bar 16. The bar 16 is made of sufficient length to extend beyond the sides bolt 10 but is also of a length'which will permit it to be pivoted into the bifurcated end portion 13 as indicated by the dotted line position of the bar 16 in Figs. 1 and 2. Adjacent the point at which the bar 16' is mounted on the pin 15 and in the face bar 16 which is of said bar disposed away from the groove 14 I provide a notch 17. A spring 18 is disposed around the bar 16 and has one end. thereof disposed in the notch 17 while the other end thereof bears against the limb of the bifurcated portion 13 opposite the groove 14' and it is, therefore, manifest that the spring 18 acts on the bar 16 to force the same to seat in the groove 14'. It is also manifestthat this arrangement permits the bar 16 to be moved from the notch 14 when 'so desired and turned into the substantially verticalposition illustrated by the dotted linesin Figs. 1 and 2. I

of the shank 11 of the king placement f the ng .b l fthr gh th @pe ngsi 16 toproperly hold the king bolt in pouinanneras that disclosed inthe other 4 and it.is,therefore, obvious that bolt may .be-passed through the openings.

therefore,

In Fig. 5, 19 and 20 indicate the arms of a typical clevis construction while 21 indicates atypical draw bar which is disposed between the arms 19 and 20. The arms 19 andQO and the bar 21 have aligned openings therein through which the shank 11 of my improved king bolt is intended to be ex tended so thatithe enlarged head 12 may engage the upper surface of the upper arm 19' and thus properly position the king bolt 10 in the openings so as to interconnect the clevisand the draw bar. It has been customary to arrange a bolt and nut construe tion on the lower end ofthe kingbolt so as to retain the same in position butIprovid'e the following arrangement so as to obviate the necessity of employing such a construc tion. In. order toposition the king bolt 10 in the openings asset forth the bar 16' is moved into-the vertical dotted line position the king After the king bolt has been passed through the openingsthe bar 16is moved so as to extend transversely of the shank 11 and,

saidbar 16 will be disposed in the groovel l and" will be held from disfrom said .groove by the spring 18.; It is manifest that this transverse extending of the bar 16 will prevent retraction the 'clevis arms and draw bar andl have found that this arrangement will serve sat- 1sfactorily.= "However,1f desired, the king bolt maybe more firmly retained 1nv posilil0ll by disposing a 'COll spring 22- about the shankll below the lower, surface of the loweryarm 2O of the clevis and between the bar. 16. It is, therefore, manifest that expansion of the s'pring22 will act'on the bar sition. v 1 r v .In the. embodiment of the invention thus far describedthe bar 16 has been set forth as beingsubstantially cylindrical in form..

" vYhile this construction will serve satisfactorily Ihave 16 may be constructed in the manner depicted in Fig. 4 wherein the bar is generical- 1y indicated by 28 which includes a relatively wide fiat portion. 2-4 which has a rounded-boss'extending therefrom. The bar23 is vintended to be mounted on the pin-15 in the manner heretofore the portion 24 opposite the rounded boss 25 so as to force the rounded portion 25 into thegrooye 1 1. Itis manifestthat this de vice will operate. insubstantially the same ures of. the drawing.

-While' I have illustrated and described the preferred formof construction for carrying my invention into effect, this is cape-J found that if desired the bar described I and the spring-181s intended to be disposed in anotch17 formed in the flat surface of ble of variation and modification, without departing from the spirit of the invention. 1, therefore, do not wish to be limited to the precise details of construction set forth,

but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

' Having thus described myinvention what I claim as new and desire to protect by Letters Patent is: 1. A king bolt comprising a shank having a bifurcated end forming limbs, the inner faces of said limbs being defined by the bifurcation, one ofthe limbs of said bifurcated end having a groove formed in the inwardly. disposed face thereof, a bar pivotally mounted in said bifurcated end, and means acting on said bar to force said bar toward said groove-to seat said bar thereinwhereby said'bar may extend transversely of said shank. i V

2. A king bolt comprising a shank having a bifurcated end forming limbs, the inner faces of'said limbs being defined by the. bifurcation, one .of the limbs of said .bifurcated end having a groove formed in the inwardly disposed face thereof, a pin extended vtransversely of said bifurcatedend and extended through said groove,'a bar' pivotally mounted on said shank, said bar having a notch formed therein atthe por iionthereof. through which said pin is extended, and a spring disposed around said pin intermediate one limb of said bifurcated portion and said bar and extended into said notch whereby saidgspring, may act on said bar to force said bar into said grooveto hold saidbar against pivotal movement and in transverse position relative to said shank and said bifurcated end.

In testimony whereof I aflix my signature.

, THEODORE B. SMITH.

Images