US705366A - Shaft-coupling. - Google Patents

Description

No. 705,366. Patented luly,22, I902.

l. LEHMAN.

SHAFT COUPLING.

(Application filed Dec. 80, 1901.)

I (No Model.)

W/ TNE SSE S IN VE N 70/? I 21 on I7 ,7 22 mum UNITED STATES P TENT OFFICE.

ISADOR LEHMAN, OF CLEVELAND, OHIO.

SHAFT-COUPLING.

SPECIFICATION forming part of Letters Patent No. 705,36 6, dated Ju 22,1902.

Application filed December 30, 1901. Serial No. 87,849. (No model.)

shaft-couplings suitable for-use in'coupling two shaft-sections together vwithout interfering with the rotationof the said shaft-sections in unison and with their-arrangement at an angle to each other.

a modification of the type of shaft-coupling embodied and disclosed in United States Letters Patent No. 676,194, granted to me June The object of this invention is to construct a shaft-coupling of the character indicated which possesses great strength and durability, I

which isoreliable in its operation, and whose component parts are'conveniently assembled and separated.

With this obj eet in View my invention consists in certain features of construction and combinations of parts hereinafter described, and pointed out'iu the claims. In the accompanying drawings, Figure I is a side View of a shaft-coupling embodying my invention. .Fig. II is an elevation largely in central longitudinal section on line II II, Fig. I. Fig. III is a central, transverse section on line III III, Fig. II, looking in the direction indicated bythe arrow. Fig; IV'is an elevation largely in central longitudinal sec tion on line IV IV, Fig. II. p

Referring to the drawings, a and?) designate two shaft-sections coupled together by thechamberof the shell- c hastwowalls 20 and 21, arranged in planes at right angles to each other and extending concentrically of the chamber of the said shell.' The shell cis slotted, asat 22,1ohgitudinally of each of the said walls 20 and'2l, centrally between the ends of the walls. The shaft-section a extends through the slot 22 in the wall 20, and

the shaft-section 1) extends through the slot- 22 in the wall 21, and each of the shaft-sections has its head 15 provided with a shoulder 16, engaging-the slotted wall through which the said shaft-section extends, which shoulder 16 extends widthwise of the said wall the full width of the wall, and conset j quently the shell 0 has bearing upon the This invention pertains more esp'eciallyto gages the wall 13 of the recess or cavity 14 in the head 15 of the shaft-section a, so as to accommodate not only the movement or adjust- I ment of the shaft-section ct circumferentially of the ball-shaped inner end of the shaft-section I), but so as to accommodate also the adjustment of the shaft-section b at various anglesto the shaft-section a. The shoulder 16 of the head of 'each shaft-section and the slot :22, through which the said shaft-section extends, extend around and concentrically of the center of the shell 0 a distance equal to about one-third or somewhat less than one half the distance around the said shell. The slotted Walls 20 and 21 extend about threefourths of the distance around the center of the said shell 0, and, in fact,'e ach of the slotted walls 20 and 21 extends'from a point near one side of the other slotted wall concentrically of the center of the shell 0 to near the opposite side of the last-mentioned slotted wall. The portions of the walls 20 and 21 at the sides of the slots 22 have adequate bearing at all times upon the shoulders 16 of the heads 15 of the shaft-sections and are instru- ICC mental in preventing displacement of the parts.

The shell 0 is provided internally at each side of each slotted wall of the said shell with a shoulder 19, extending along the said wall, and the two shoulders 19 and 19, extending along the said wall, are arranged at and a short distance from opposite sides, respectively, of the slot 22 in the said wall at and contiguous to opposite sides, respectively, of the head 15 of the shaft-section extending through the said slot and are instrumental in establishing operative connection between the shell 0 and the said shaft-section.

Obviously by the construction hereinbefore described the two shaft-sections and the shell 0 will rotate in unison upon applying power to one of the said shaft-sections, and each shaft-section can be arranged at an angle to the other shaft-section, and when the shaftsections are arranged at an angle to each other the shell 0 will, during the operation of the parts, not only rotate, but rock or oscillate upon the shoulders 16 of the heads 15 of the shaft-sections.

The shell 0 is divided, as at 25, into halves -or sections centrally and longitudinally of one of the slots 22 of the said shell to accommodate the assemblage of the parts. The said halves or sections correspond in construction and are consequently interchangeable. Each shell-section is provided at one side of the shell and externally with a pair of internally-screw-threaded registering ears 12, arranged a suitable distance apart, and at and externally of the opposite side of the shell has a correspondingly internally threaded single car 10, which extends between and registers with the two cars of the pair of cars of the other shell-section. A correspondinglythreaded screw (1 is screwed into the registering ears 10 and 12 at each side of the coupling, and a screw-threaded hole 7 is formed partially in the said screw (1 and partially in one of the said cars 12 and engaged by a screw (2, which prevents unscrewing of the said screw (1.

What I claim is 1. The combination, of a casing or shell 0 made in sections and having two internal walls 20 and 21 arranged in different planes, respectively, at right angles to each other and extending partially around the center of the said shell, which shell is provided, in each of the said walls, with a slot 22 extending along the wall; means for holding the sections of the shell or casing together, and two shaftsections extending through the slot 22 in the different aforesaid walls, respectively, and provided, respectively, with a head 15 contained within the aforesaid shell, and a shoulder 16 extending along and afiording bearing for the wall through which the respective shaft-section extends, and the head of one of the shaft sections having its inner end shaped as required to form the segment of a ball whose center is coincident with the center of the aforesaid shell, and the head of the other shaft-section having a cavity or recess let open at the sides of the head and having its wall 13 arranged concentrically of the center of the shell and engaged by the aforesaid segment of a ball, substantially as and for the purpose set forth.

2. The combination,with two shaft-sections a and I) having their adjacent ends provided with heads 15, of a casing or shell 0 embracing and having bearing upon the said heads and establishing operative connection between the said shaft-sections and composed of two halves or sections, and each half or section having a pair of registering cars 12 at one side of the shell and a single ear 10 at the opposite side of the shell with the last mentioned ear of the said half or section interposed between and registering with the ears of the pair of ears of the other half or section, and means for securing the registering ears together.

3. The combination,with twoshaft-sections a and I) having their adjacent ends provided with heads 15, of a casing or shell 0 embracing and having bearing upon the said heads and establishing operative connection between the said shaft-sections and composed of two halves or sections, and each shell-section having a pair of registering internallyscrew-threaded ears 12 at one side of the shell and a single internally-threaded ear at the opposite side of the shell, with the last-mentioned ear of the said shell-section interposed between and registering with the ears of the pair of cars of the other shell-section, a screw extending into and engaging the registering ears of the shell-sections at each side of the shell, and another screw engaging a correspondingly-threaded hole formed partially in the first-mentioned screw and partially in one of the ears engaged by the said first-mentioned screw, substantially as and for the purpose set forth. 7

In testimony whereof I sign the foregoing specification, in the presence of two witnesses, this 23d day of December, 1901, at Cleveland, Ohio.

ISADOR LEl-lMAN.

Witnesses:

C. H. DORER, TELSA SCHWARTZ.

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