US61766A - Joseph schafek - Google Patents

Description

JOSEPH scHAFER., on NEW-YORK, N. Y., Assiettes To llanMsnLF AND' GEORGE HEYDT, OF. THE SAME PLAGE. Letters Pate/nt No. 61,766, dated February. 5, 1867; antedated January 27, 1867.

IMPROVEMENT `IIN HINGES.

tlge Stigehule retemh tu in tlgesettter zttent mit making ym nt tte same.

TO ALL WHOM IT MAY CONCERN:

Beit known that I, GEORGE SCHAFER, of the city, county, and State of New York, have invented a new and improved Hinge; and I do hereby declare that the following is a full, clear, and exact description of same,

which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l represents a side elevation of my hinge when the same is turned at right angles.

Figure 2 is a similar view of the same in a rectilinear position.

Figure 3 is a plan or top view of the same.

Similar letters of reference indicate like parts.

This invention relates to a hinge which when attached to the square ends of two pieces of board, or other material, allows of turning said piece from a rectilinear to a rectangular position, and vice versa, without permittingthe joint to open during the entire operation, and thereby a hinge is obtained which is of very great convenience for folding tables and other articles.

My hinge consists of two parts, AB, one of which is provided with a groove and the other with a correspondl ing tongue itting into said groove, as clearly shown. in iig. 3 of the drawing. The ends of both parts, AB, of my hingc are square, and so are the shoulders formed at the inner end of the tongue, and the two parts are unitedby two pins a b which travel in segmental slots c d. The pins are fastened in the jaws of the grooved piece A, andthe slots are made in the tongue, and they are situated and curved in Asuch a manner that when the hinge isin a rectilinear position, as shown in fig. 2, the pin a occupies the top of the slot c and the pi'n b the outer ,end of the slot d, and in turning thehinge from a. rectilinear to a rectangular position the slot d swings past the pin a, forming the fulcrum until the inner end thereof strikes the pin b, then the pin b forms the fulcrum and the slot c swings until its bottom end strikes the pin a, and the slots and pins come froni the position shown in iig. 2 to that shown in iig. 1. During this motion of the hinge the square ends of the-part A travel close to the shoulders at the inner ends of the tongue of the part B, and if the hinge is secured to the square end ofthe two parts of a table, for instance, said table can be folded and unfolded without opening the joint during the entire motion.

This hinge is applicable to all kinds of work in which two parts are tted togetherl with square ends and whereA it is desirable to have said two parts fold and unfold without opening the joint.

What I claim as new, and desire to secure by Letters Patent, is-

A hinge composed of two parts A B, which are united by pins a b and slots c d, and otherwise constructed and operating substantially as and for the purpose described.

JOSEPH SCHAFER.

Witnesses:

M. M. LIVINGSTON, ALEX. F. ROBERTS. f

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