US1172679A - Saddle-spring for drills. - Google Patents

Description

0. H. DE VAUGHN.

. SADDLE SPRING FOR DRILLS.

APPLICATION FILED JULY 26,1915.

1,172,679. Patented Feb. 22, 1916.

THE COLUMBIA PLANOGRAPH c0., WASHINGTON, nv c.

' face of a walking; beam B of, the usual construction and said device comprises 'a.

walking beam OKEY HILLDE VAUGHN, or PAnK nsBURe; wnstr VIRGINIA. v

SADDLE-SPRING FOR nnILLs."

Specification of Letters Patent... PatentedFeb, 22"1916 Application filed I111 2s,191'5., seria1no.41,97s.j 1 a 1 To all'whomz't mag concern: f

Be it known that I, OKEY HILL DE VAUGHN, a citizen of the United States, re-

siding at Parkersburg, in the county of lVood and State of West Virginia, have in vented certain new and useful Improvements in Saddle-Springs for Drills; and I do declare the following to be a 'full, clear,

and exact description of the'invention, such .as will enable others skilled inthe art to which itappertains to make and use the same.

.This invention relates to improvements in drilling machinesand more particularly to saddlesprings therefor; E

The object of thelnvention is to provide a simplyoconstructedand efiicient device-of.

this character for use 'in connection with wire lines or soft cables to prevent jars on the rig or derrick and whichis designed to be, mounted on the walking beam of the apparatus.

With this and other objects in view, the invention consists of certain novel features of construction and the combination and arrangementof parts as willybe more'fully described and claimed.;*

representsa side elevation of one end ofa saddle spring applied; F ig. 2 is a horizontal. section taken on the line 2-2 of Fig. 1; Fig. 3is an end elevation thereof.

In the embodiment illustrated this improved device is shown applied to the upper substantially rectangular frame-composed of a base plate 1 here shown rectangular in form although obviously'it may be of any other desired configuration and which is provided at its corners with standards 2 risingtherefrom and which are here shown composed of angle irons L-shaped :in cross section. The flanges 3 of-said standards at the sides of the base plate 1 project at their upper ends above the, other flanges.

thereof and are apertured to provide bearings for rods or bolts & and-5' which extend transversely across the frame through the. apertures in the upper endsof the flanges 3 and which are designed to support the op-,

posite ends ofaztop plate 6." This top plate showin f this improved 6 is of'a width equal to the distancebetween v I V g the apertured side flanges 3 of the opposed standards as is shown clearly in Fig; 2 and the ends of said plate are rolled downwardly and inwardly to for-mjbearing's 7 through which the bolts 4 and 5 passjand i connect said top plate to the standards 2. The base plate 1=is shown provided with a plurality ofupwardly extending bosses 8 any desired number ofwhich may beem'e ployed, eight being hereshown arranged in two parallel rows of four each and which are des gned to receive one end of coiled cushioning springs '9 hereinafter more fully described. 1 This base plate 1 is secured to the walking beam VVB by bolts '10 which extendthrough apertures suitably disposed in said plate and vertically through the walking beam, as clearly-shown in Fig. 1 a

andbv means of which said plate is reliably secured to said beamv The top plate 6 is provided-on its inner face with a plurality of. depending bosses 11, any desired number of. which may be employed, four being preferably employed arranged at the oppositelcorners respec- V tively of said plate. Thesebosses 11 and In the accompanyingdrawlngs; Figure 1 the bosses 8 of thebase plate are both shownthe inner ends ofcoiled springs 12 which are smaller than thezsprings 9 supportedon the bosses 8 of the base plate...-

An intermediate plate or head 13 is mounted to move-vertically betweenithe base and' top-plates and is of a length to v adapt it to fit between the flanges ofthe standards so that thesefiangesrform-iguides for' said head to retain itpagainstlongitudinail and lateral displacement This inter mediate plate 13 is provided on itsjlower face with a plurality of: depending bosseslet which correspond in shape and'number to thebossesS of the baseplateand are positioned to register therewithand to receive the upperxen'dsof the coiled springs 9 as is shown clearly in Fig 1. "Thisintermediate plate l3is also provided at its opposite side edges with longitudinallyi eXte'ndingribs 15 which taper toward :their oppo-f site-ends'and are provided at theirgcentral wider portions withnotches 16 which register with each other and are designedf to re ceive a stirrup Cwhich' is connected with. the crank shaft" (not shown); Thezhead 13 is also provided on its upper face with up-- wardly extending bosses 17 which register with the bosses-ll on the top plate and correspond in shape and number therewith and are designed to receive the lower ends of the cushioning springs 12. The springs 12 are shown more closely 'coiled'than the springs 9 and hence the cushioning effect thereof varies correspondingly.

From the above descriptiomit will be.ob-'

. viousthat the springs 9 and 12 cushion the movement of the intermediate plate 13. in both directions, a downward pull exerted on, the end opposite that carrying thesaddle serving to, raiseithe saddle carriedend and compress the springs 9 and on the release of i said pull these springs expand and thus cushion or :break :the direct vibration from the tools to the crank and thus. all jars on the crank shaft are prevented, said springs operating as shock absorbers.

From the'above description and an in spection of Fig. 1 it will be understood that the springs 9' are normally expanded and force. the head 13 and beam WV. 'B-QYLVVdY from each other, thereby compressing springs 12 betweensaid head 13 and the topplatefi, and when a pull down is exerted on the stirrup C the springs 9. are compressed while springs 12 expand and thereby cush ion the movement of the walking beam in both directions and when the pull on the stirrup. is released, the springs 9 expand and springs 12: contract thus cushioning the upward movement of the beam. It is of course understood that the cabl or wireline is connected with the other endof the walking beam W. B. (not shown;)L The springs. 9 and 12 in; the structure above described may beremovedand others:

of different :tension substituted when desired accordingto the weight they are! to support as it will bejunderstood that with drilling machinesthe depthof the hole be ing drilled controls the weight carried by I the springs.

Iclaim asmyinvention: I l 1.'-In'a device of the class described the combination of vertically spaced plates held in fixed relation to each other, an inter- -mediate plate-movable between said fixedplateszand provided with. stirrup support- 7 ing means,- and cushioning springs arranged betweensaid intermediate plate and the base plateand also between; said intermediate plate and the top plate; I

2.111 a device of the class described the combination' of vertically spaced plates held in fixed relation to each other, an intermediate plate movable between said fixed plates and provided with stirrup supporting means, cushioning springs arranged between said intermediateplate and thebase plate and also between: said intermediate plate and the top plate, and means carried by said base plate for guiding, said inter mediate plate-and holding it *agalnst longitudinal and lateral displacement.

3. In a device of the class described thecombination of a base plate, standardsrising therefrom, a top plate mounted onv said standards, a platemovably mounted be tween said top and base plates, cushioning springs arranged between said movable .1

plate and saidbase plateand between said movable plate and topplate, andmeansca'n I ried by said plates for holding said springs;

in operative positionix p 4; Ina device of the class described-the combination 'of a rectangular base plate,a

standards rising from'the corners thereof,

said standards being in; the. form of angle" irons L-shaped in cross section, the flanges at the sides of saidstandards:beinglonger at their upper ends than the other flanges and apertured to form bearings,

a top plate of a width equal'toithe distance and having their ends rolled to form bearbetween the 2' apertured ends of the opposed standardsim ings, bolts extending through: the bearings insaid standards and through those 60f the ends of said top plate,

base plates,

laterally extending bosses onthe inner faces of said top and an intermediate plate. arrangedbetween said top and base plates and having bosses on both faces registering with those of theopposed plates, coiled=springs arranged between said-base and intermediate plates with" their ends engagingthe bosses thereof, similar springs-between saidintermediate and top plates with their ends engaged with the bosses thereof, and means carried by saidinte rmediate plate for sup-' porting a stirrup.

5. Ina device of theclassdescribed the combination of a rectangular standards rising from the corners thereof,

. said standards being in; the form of angleirons L-shapedin crosssection, theflanges base plate,

at the sides of said standards being'longerv at their upper ends :thanthe of a-width equal to the distance between'the apertured ends of the .opposedsstandardsi I other flanges and apertured to form'bearings, atop plate 7 and having their ends rolled to formbearings, bolts extending through the bearings"v in said standards andtthroughwthose ofthe laterally extending.

ends of said top plate,

bosses on. the inner faces of saidv topia nd' base plates, an intermediate. plate arranged... between; said topand base plates and hav ing bosses on both; faces 1 registering with; those on the opposed plates, coiled springs arranged between said base and .intermediate plates; with their ends engaging the bosses thereof, similar springs between.sa1id-- intermediate and top plateswith their ends my hand in presence of two subscribing wit engaged wih the bosses tlliereof, lplngiltudinesses. v nally exten ing transverse y space ri s on p a I the upper face of said intermediate plate Y H DE VAUGHN 5 provided with registering notches to receive Witnesses:

a stirrup. V W. H. MCDO EL In testimony whereof I have hereunto set R. A.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, e

a Washington, D. C.

Images