US1026750A - Noiseless pivot-hinge. - Google Patents

Description

E. E. KELLEY. NOISELESS PIVOT HINGE.

APPLICATION FILED JULY 18, 1911.

Patented May 21, 1912.

whoa/way PATENT oFFioE.

. EUGENE E. KELLEY, 0F GREENSBURG, PENNSYLVANIA.

NOISELESS PIVOT-HINGE.

To all whom 'it may concern:

Be it known that I, EUGENE E. KELLEY, a citizen of the United States, and a resident of Greensburg, county of Westmoreland, \State of Pennsylvania, have invented certain new and useful Improvements in Noiseless Pivot-Hinges, of which the following is a specification.

My invention relates broadly to builders hardware and more specifically to a noiseless universal joint or hinge particularly adapted for the suspension of oscillating bodies. i

The principal object of my invention is to provide a noiseless universal joint adapted to act as a connecting member for ends of supports particularly adapted to support porch swings and swinging chairs.

Another object of my invention is to provide a universal joint with pivots at right,

angles to each other, one of said pivots being free to swing upon its axis, the other of said pivots being fricti'onahthus tending to resistmovement upon its particular axis.

A further object of my invention is to provide a terminal member for supports of chains or other suspension devices, particularly adapted for the suspension of porch swings and the like, which terminal member includes a wooden journal blockjforming the pivotof major oscillation.

Other and further objects of this invention will in part be obvious and will in .part be pointed outwith more/particularity by reference to the accompanying drawings and specific description hereinafter followmg. g

Referring more particularly' to the drawings in which like characters represent like numerals throughout the various I figures thereof: Figurel is a perspective view of my invention as applied to a ceiling attaching block and supporting member. 'Fi'g. :2 is a detail in partial section illustrating my invention as applied to the lower journal block as attached tothe chair or swing frame. Fig. 3 is a detail of one form of the Wooden block. Fig. 4 is a detail of one form of the inclosing strap. Fig. 5 is a perspective view illustrating my invention as applied to a porch swing.

In swinging chairs and porch swings wherein the seat of the swing or chair is usually supported from an overhead beam or ceiling by means of chains, it becomes Specification of Letters Patent.

Application filed July 18,

Patented May 21', 1912.

1911. I Serial No. 639,141.

{desirable that the journal blocks forming overhead support and to the seat of the chair per se, shall be so constructed as to obviate unpleasant squeakin noises. Furthermore, it is particularly desirable that the support may have a free movement in a fore and aft direction with reference to the front and back of the swing or support, while the movement in a sidewise direction which is at right angles to the fore and aft direction, be more or less restricted. In other words, it is desirable that thesupporting chains be so arranged as to swing freely back and forth and not to swing so freely in a sidewise direction.

My invention, as will be more specifically described hereinafter, cooperates as well with rigid supporting bars or rods, as with flexible chains, or ropes.

Iteferring more particularly to the drawmember which may be a screw eye 1, as

disclosed in Fig. 2. The eye portion 3- of inclosing strap 4 by means of a pivot bolt or rivet 5, which passes through openings rivet 5 is preferably tightened down upon the eye portion 3 of the eye bolt in such manner as to cause a considerable degree inclosing strap 4 and the eye portion of the supporting bolts 1 and 2. The inclosing strap' 4 tightly clamps a resilient journal block 7, preferably formed of wood, which is provided with a journal opening 8, and

a partial circumferential rib '9. The inclosing strap 4 is provided on its exterior surface with a raised rib 13 which is adapted to cooperate with the circumferential rib.9 on the being displaced endwise from the supporting strap. The wooden journal block.7, may if desired, be flattened as at 10, in order to permit the screw eye 3 to be properly positioned between the ends of the-inclosing strap 4. The journal opening 8 inthe wooden block 7 is preferably located near the flattened portion 10, which flattened portion is adjacent the open ends of the strap 4, thereby permitting a greater amount of wood be,- tween the lower portion of the supporting the end attachments of the chain, both to thelngs, my invention comprises an attaching disclosed in Fig. 1, or an eye bolt 2, as-

6 in the inclosing strap. The pivot bolt or is preferably formed upon its exterior with journal block to prevent the journal block the screw eye or bolt, is secured between the of friction between the side walls of the strap and a pivot journal, which will here inafter be more specifically described' An attaching loop 11 terminates in eye portions 12, which form bearing heads for retaining the lower supporting members 17 are fixedly attached to the seat frame of a swinging chair 18. The overhead supporting members 16 are connected to the seat supporting members 18 by chains 19. As has been hereinbefore stated, any other type of securing means, for example, rigid bars or ropes, may be used in place of the chains illustrated.

In operation, as the chair seat or swing frame is oscillated back and forth with a swinging movement, the pivot journal 14, which is at right angles to the line of oscillation, permits of the free movement I of the chair back and forth, while the pivot bolt or rivets 5, whose axes are in line with the to and fro motion of the swing, tend to prevent any endwise movement of the swing to a certain extent by reason of the friction interposed between the screw eye 3 and the strap 4, as'hereinbefore stated.

It will be noted that the journal block 7,

.I desire to claim is A noiseless pivot hinge comprising a hearing block of yielding material having a peripheral ridge, a continuous retaining strap encircling said bearing block and provided with a longitudinal groove adapted to register with the peripheral ridge of the block, an eye bolt pivoted between the ends of the retaining strap so as to permit its oscillation transverse the block, a journal member loosely mounted in the block, and an attaching loop secured to the extremities of the journal member.

EUGENE E. KELLEY.

WVitnesses J. HILARY KEENAN, A. C. SNIVELY.

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