US1280261A - Header-pitman. - Google Patents

Description

A. B.- IVICFRLAND.

HEADER PITMAN.

APPLICATION FILED APR.2I. 19x?,

Patented Oat. 1, 1918.

F76. f7@ a.

INVENTOH WITNESSES V BY ATTO R N EY structed in accordance With the 4U vers'ely through the r machines of thecharacter mentioned.

"the drivingand the sans K 'HEADER-Firmen:

Specification of Letters Patent.

Application filed April 21, 1917'. Serial No. T G'af/'Gd To' all whom t may concern.'

' Be it known that I, ART B. MGFARLAND, a citizenL of the United States', residing at Blackwell, inthe county ofKay and State Aof Oklahoma', have invented certain neur v -and useful Improvements in Header-Pitmen, of which thel following is a specilication.

This invention relates to power vconnections, and particularly to connecting rods, pitmen and' thev like.VV

The invention has for its primary object to provide a pit'man or connecting rod for use" particularly` in connection with headers, moWingo-and other machines Which is capable of establishing a positive driving connection betweenthe rotatable and reciprocatory elementswithout the knocking` and strainingWlii-cll isnow commonl57 present in A furtherobject of the invention is to provideV apoWer transmitting" element of the class mentioned which will prove strong l anddurable and atl the Sametime simple and inexpensive, and which is capable of being readily adjusted to' compensate for Wear or looseness at thepointof connection with the driving or driven elements. I

Withthese objects in view,together With others which Willr appear as the description' proceeds, the invention resides in the novel formation, combination, and arrangement of parts, all as will be described more fully hereinafter,`illustrated in the drawings, and particularly pointed out in the claims.

In the dravvings'a Figure 1 is aside' elevation, parts broken away,of a pitman" 'or connecting rod coninvention g Fig.- 2 is a sec tional view taken transll'pitniian onthe line 2-2 of Fig. l; and 4 Fig. 3 is asimilar view taken on line 3-3 of Fig. l1.

The inventionicomprehends generally the arrangement of aipitman or connecting rod for establishing a power connection between driven element, which has its crankor Wristpin engaging portions constructed ro'fresilient or* pli: le material` so thattigh't: engagementI of the pitman at its pointof connection With such elements is atfall timesassu'rd. The material of which the Wrist or'cran'kpin engaging portions of the pitnianis forniedis, in the present instance, a tough relatively heavy. leather,

v so that the legs oi'f Which may be thorougliiy sature ted 'with `so as to increase the durability and weer qualities of the leather, as well as to .insu

roper lubrication and overcome tire poi-.siilities of burning out of the material. More particularly, the' body portion of the pitn'ian is indicated at 5 and" may be formed of wood or uy other suitable n f. terial. rllhe leather or pliable niateri:. i engagement with the wrist or crank p connected to the ends of this body po and is indicated at (i. `The leather is cnt squares oi" equal dimensions, andthe rious squares are assembled tace These squares are preierablva trifle l than is the body portion 5 in cross ser in and the squares are provided adjacent their upper and lower ends with alined aper- 7, to receive the longitudinally emiten tie bolts or rods 8. The tie bolts in ti i i ent instance are formed of a single pic" ar of metal, bent into substaniialiv la, the said bar uili en.' 'upon the upper and lower faces of the bo. portion 5 of the pitman. -Clie eitrein"` rof. the leg portions are threaded as sito in, and are equipl'aedivith jam nuts 9 ior securely binding the end portions to the boui 5. The body portion is illustrated as in" provided upon its upper `and loner te( With central and longitudinally dispos grooves 10, Within wl i the legs oi" the tio member rest, and this particular constru tion eliminatesv the pr. bili-tj.' of fr bolts moving laterallyv ine pitnian bodl-. When the layers or tliielznesses or leutiicr have been prfnverlv assembled upon the ends of the bod;7 5. and, the nuts 9 have l tightly screw'ed upon the ends oit the lo of the tie member, it ir apparent' that. tu said layers or tliiclvziiesses will he tigii januned together and held tirmlj/ lo tf ends ot' the body.

The headsthus formed at the, 're'niiie of the pitinan are bored to rerei the cra or wrist pins li oi5 the driving and driven elements. and it desired these heads inap be provided with oil ducts so that lubricant may be introdlufed to the "points oi.2 contact. Each ot' the bored portions of the heads shown as being provided u'itli a bushing i2. to snugly tit around the Wrist or crunk pins.

From this description. it is aimaient that I have provided an extreruelv silnplc and yet tllorouglil)v efficient means for attaining the desired ends. By tightening" the 3am 'linnn nnte 9 upon the ends of the tie rods it ohvious than; righi, udjosmiengs may he nnnile9 and proper 'agement ni the heads with their resp e pine .is eesurexfl. le is preferred hnl' ehe loyers olf pliable material be thoroughly saturated with oil, in order that 1lhe wearing queliti ,s mi the materiel will he improved. The mezeriel of which these heads are 'formed is mentioned herein es heing of leather, one it l'hzrt 'bhe invention is not resln'ioted 'to nee Wih. mete-rial of this ohnraeler, s other hide or iihi'ons materials may, with equal fucility, be employed.

lill'hilo the pr ent is n dieelosure oi what is believed lo he die preferred embodiment ol? 4the invention, il to he niidei'szood lzhat 'the invention is ,not limited 'rheireo es verious @hannes inthe minor doaeiis oi" con- "J l. X sti-neuem arrnngemen; i proportion or isjto he understood A 1 ,eeoee i.

parte may be resorted to, Without departing from the spirit of the invention as defined in the appended claims.

What is Clnilned is l, A. pitinan having heads tough pliable material saturated with oil.

2. ln n pitlnan, u body comprising nn l elongated bnr, heads formed ofpliahle nmH terial, the said heads having longitudinally disposed openings, and tie rods extending through said openings and throllghont the length of seid body for holding seid hends to said body. Y

ln testimony whereof I niiix my signature in presence of two witnesses.

ART B. MGFARLAND.

Witnesses di J, PRICE, i C. W. Dunn formed of

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