|Publication number||US579277 A|
|Publication date||Mar 23, 1897|
|Filing date||Feb 17, 1896|
|Publication number||US 579277 A, US 579277A, US-A-579277, US579277 A, US579277A|
|Inventors||William B. Lord|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (38), Classifications (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
W. B. LORD & O. G. GRISWOLD. JOINT FOB ADJUSTABLE PARTS OF MACHINERY. No. 579,277.
Patented Mar. 23, 1897.
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IVILLIAM B. LORD AND CHARLES C. GRISVVOLD, OF CHICAGO, ILLINOIS, ASSIGNORS TO HARRISON J. BAKER, OF SAME PLACE.
JOINT FOR ADJUSTABLE PARTS OF MACHINERY SPECIFICATION forming part of Letters Patent No. 579,277, dated March 23, 1897.
Application filed Februar 17,1896. Serial No. 579,543. (No model.)
To aZZ whom, it may concern:
Be it known that we, WILLIAM B. LORD and CHARLES C. GRISWOLD, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Joints for the Adjustable Parts of Machinery, of which the following is a specification.
The present invention relates to that class of joints by which two parts of a piece of machinery are so united that their positions with relation to each other may be changed or adjusted by their relative movement about an axis, and when adjusted or brought to the tie sired relative positions may be locked, the locking means being of such a character that the parts may be readily unlocked for new adjustments.
In its broadest aspect the invention is not limited to the use of the improved joint in machinery of any particular character, but on the contrary we reserve to ourselves the exclusive right to use it in machines of all classes, and this notwithstanding the fact that for the purposes of this application we have illustrated it as being used in a bicycle or other velocipede for uniting the handles to the handle-barg nor is the invention in its broadest aspect limited to the character of the circular series of locking features hereinafter mentioned or to a detent of any particular construction or arrangement.
lVith these qualifying observations it may be stated generally that the invention consists in the features of novelty that are particularly pointed outin the claims hereinafter, and in order that it may be fully understood we will describe it with reference to the accompanying drawings, which are made a part of this specification, and in which- Figure l is an elevation of a joint embody ing the invention for uniting two parts and two parts united thereby. Fig. 2is an elevation thereof viewed in the direction of the arrow 5, Fig. 1, and a section of the parts by which it is united. Fig. 3 is a section thereof on the line 6 6, Fig. 1. Fig. 4 is an elevation of one of the parts. Figs. 5 and 6 are sections on the lines 8 8, Fig. 6, and 9 9, Fig. 5, respectively, showinga joint embodying some features of the invention.
The parts to be united are provided with overlapping cars a and Z7, respectively, that are perforated for the passage of a pintle I, about which as an axis the parts are relatively movable. The two parts that are united may take the form of stubs A B, that are adapted to be attached to other parts of the machine. As shown in Figs. 1 and 2, the parts that are attached to these stubs are respectively the handle-barA anda handle B but for the purpose of this application the parts A A may be regarded as a single member, and so with the parts 13' B the invention in its broadestaspect being not limited to the character of the parts that are united. The pintle I is hollow and forms a socket G, in which the spring II for actuating the detent F is arranged, the relations of the spring and detent being such that the spring holds the detent normally in engagement with one or another of a series of locking features (perforations) with which the ear I) is provided, said features being disposed in a circular series concentrically with the pivotal axis.
The detent consists of a substantially U- shaped piece of metal, one arm of which is longer than the other and passes through the socket. It is provided with an enlarged portion f, which provides at one and the same time a push-button for operating it, a shoulder f, against which the spring bears in one direction, and means for guiding the detent and confining it to movement in a direction parallel with the pivotal axis, this enlarged portion being of such diameter that it fits the socket snugly. Its otherarm passes through a single perforation in one of the ears a and is adapted to engage one or anotherof the perforations in the car 17.
Having thus described our invention, the following is what we claim as new therein and desire to secure by Letters Patent:
1. In a joint for the parts of machinery, the combination of two parts having overlapping perforated ears, a pintle occupying the perforations of the ears, said parts being relatively adjustable about said pintle as an axis, a socket formed in said pintle, a movable detent having a portion occupying said socket, and a coiled spring arranged in said socket and surrounding the pintle and exerting its pressure in one direction against it and in the other direction against the socket, substantially as set forth.
2. In a joint for the parts of machinery, the combination of two parts having overlapping, perforated cars, a pintle occupying the perforations of the ears, said parts being relatively adjustable about said pintle as an axis, a socket formed in the pintle, a substantially U-shaped detent one arm of which passes through the socket and is provided with a shoulder, a coiled spring arranged in the socket and surrounding the arm of the detent which passes through the socket, said spring WVILLIAM B. LORD. CHARLES C. GRISWVOLD.
L. M. HOPKINS, N. C. GRIDLEY.
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