US379929A - William boubke - Google Patents

Description

(No Model.)

' WQBOURKR BUTTON. I 9 I No. 379,929. Patented Mar. 27, 1888;

J14 fiw/wi Y which means may be readily and easily ap- I UNITED STATES P TENT nOFFICR.

WILLIAM BOURKE, OF BROOKLYN, NEW YORK.

BUTTON.

SPHCIPICATION i'orming part of Letters Patent No. 379,929. dated March 27,1888.

Application filed October 15, 1887. Serial No. 252,424. (No model.)

.To all whom it may concern:

Be it known that I, WILLIAM BOURKE, of

Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Sleeve-Buttons, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, and to the letters of reference marked thereon. My invention has relation especially to means for securing the heads or tops upon the shanks of sleeve or cuff buttons; but obviously my improvements may be applied in connection with other buttons or studs, or articles of like general character, and nothing herein is intended to limit their application to any particular species.

The object of my invention is to provide a simple, cheap, durable, andeffective means for uniting the heads of buttons and like articles,

plied without danger of damage to the head, of stone or other material, and which shall possess other advantages in the matter of construction, operation, and use; and to accomplish this my improvements involve certain new and useful peculiarities of construction and relative arrangements or combinations of parts, all of which will be herein first fully described, and then pointed out in the claims.

In the accompanying drawings, forming part of this specification, Figure l is a plan view of the under side of the top or head of a but ton recessed to receive the securing appliance, and Fig. 2 a vertical section thereof. Fig. 3 is a sectional view showing the stop or hearing plate with the expanding nipple mounted thereon in accordance with my invention, the shank being omitted, for the reason that any shank may be attached to the stop or bearing plate in any way. Fig. 4 is a sectional view showing the nipple expanded in the recess of the head and the extended bearing-plate flat against the lower surface of the head;and Fig. 5 is a plan View of the parts assembled as in Fig. 4. Fig. 6 is a view, partly in section and partly in elevation, showing the application to the stop or hearing plate of a peculiar form of shank and movable or adjustable shoe or base-piece, omitting the head or stone. Fig. 7 is a view, partlyin section and partly in elevation, showing one form of button complete and ready for use, the base or shoe being I turned down in the direction of the length of the shank to facilitate insertion through a but ton-hole; and Fig. 8 is a side view of the but ton shown in Fig. 7, the base or shoe being turned at right angles to the shank.

In all these figures like letters of reference, wherever they occur, indicate corresponding parts.

Heretofore and before my invention it was customary to expand a metal plate into a recess formed in the button-head, the shank be-' ing connected directly with the plate-to be expanded. The plate for this purpose was necessarily large enoughto receive and hold capable of resisting strain only through the bearing of one-half of the plate on the 'wall of the recess, in consequenceof which the recess was cut so deep as to further weaken the head, but without removing the peculiar instability of the fastening; and, again, the degree of compression required to effect the expansion being variable, and no means provided for arresting the compressing movement, many breakages occurred, also, on account of this defect. To obviate these disadvantages I construct the appliances as follows:

A represents the head of a button, which may be of stone, pearl, metal, or any other desirable or suitable material. This is provided with a recess, a, of which the walls are slightly inclined, the recess being of short diameter and of small depth comparedwith the dimensions of the head, which maybe of any figure.

B is a plate of metal, of considerably larger diameter than the recess a, receiving the shank upon one side, which shank may be of any pattern and secured in any way, and having the shank,and afford surface outside the shank for application of the tools to effect the expansion, besides the additional extent of surface for entering and expanding in the head; All this required that the recess in the head Ebe of large diameter, thereby weakeningthe' head to such an extent that it was difficult to .apply the securing devices without breaking ;the head. Further, with this former style of fastening a very slight strain was sufficient to release the head, the expanding plate being of expansible metal. This plate isin the form of an outer flange, which, when the nipple is in place, constitutes a hearing-plate. The nipple may be attached to or formed with the plate B, and is of slightly greater depth than the recess a, and capable of entering the recess easily. The nipple being inserted in the recess provided for it, suitable tools are applied to the exterior of plate B and the plate pressed down to contact with the under surface of head A, the operation efi'ecting the expansion of the nipple. In this operation the plate operates as a stop for the compressing-tools, thereby preventing the nipple from being expanded farther than intended, or to any such degree as to rupture the head. Theappliance so constructed being in place, the plate B bears against the under sur-' face of the head, so that any strain upon the shank tending to withdraw the nipple from its seat must, before separation can be effected, turn the nipple about the margin of the bearing-plate, and this margin being well removed from the recess it is plain that the nipple will resist the strain by its bearing upon the entire wall of the recess, so that the nipple must first be bodily removed, and not partially, as in the former construction alluded to. Obviously this affords a stronger union between the parts, while at the same time reducing the liability to damage in assembling or while in use.

While, in accordance with the main feature of my invention, the shank may be of any kind or pattern, the improved mode of fastening is peculiarly advantageous in connection with the double or bracing shank, such as indicated at (J in Figs. 6, 7, and 8. Of these there are several forms, the principal feature'of all being that they afford a wide bearing upon the connecting parts. \Vhen these are applied upon the old form of plate above mentioned, they necessitate the still further enlargement of that plate,with the consequent increase of danger of breakage, whereas with my improved mode of fastening the head the security and stability of the union are in no way diminished. If the spread of the double shank be such as to require an enlargement of the bearing-plate, so much the better, for it will only remove the fulcrum or turning point (that is, the margin of the plate) farther. from the nipple, and render it necessary to draw the nipple the more directly out of its seating before any separation can take place.

Upon the shank the shoe or base may be stationary or movable. D represents the shoe, which is shown as made movable, and needs no further explanation here.

Having now fully described my invention, what I claim as new herein, and desire to secure by Letters Patent, is-

1. The herein-described stop and bearing plate for button heads, the same being provided with an expansible nipple or thimble on one side, combined with a recessed button-head, into which the nippleis forced and expanded, substantially as and for the purposes explained.

2. In a button, the combination, with the recessed head, of a nipple or thimble, a stop or bearing plate connected with said nipple, and a shank connected with the plate, the nipple being forced and expanded in the recessof two witnesses.

WILLIAM BOURKE. Witnesses:

JOHN BUOKLER, WORTH OSGOOD.

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