US480352A

US480352A - Separable button

Info

Publication number: US480352A
Authority: US
Publication date: 1892-08-09
Anticipated expiration: 1909-08-09

Description

(No Model.)

W. A. TURNER.

SEPARABLE BUTTON. No. 480,352.

' Patented Aug. 9, 1892.

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WILLIAM A. TURNER, OF WORCESTER, MASSACHUSETTS.

SEPARABLE BUTTON.

SPECIFICATION forming part of Letters Patent No. 480,352, dated August 9, 1892.

Application filed December 1'7, 1891. Serial No. 415,381- (No model.)

To all whom it may concern:

Be it known that I, WILLIAM A. TURNER, a citizen of the, United States, residing at Worcester, in the county of NVorcester and State of Massachusetts, have invented a new and useful Improvement in Separable Buttons, of which the following is a specification, reference being had to the accompanying drawings, in which Figure 1 represents a side elevation, on an enlarged scale, of a separable button embodying my invention. Fig. 2 is a bottom view of the crown. Fig. 3 is a top view of the shoe. Fig. 4 is a central vertical sectional view of the crown and shoe, the post being shown in full. Fig. 5 is a central vertical sectional view of the crown and shoe on a plane at right angles with that shown in Fig. 4. Fig. 6 is a detached view of the disk or plate containing the socket for the post and showing the inner side of the plate. Fig. 7 is a central sectional view of the plate shown in Fig. 6, the section being taken on line 7 7. Fig. 8 is a sectional view of the same on line 8 8, Fig. 6. Fig. 9 is a detached view of the blade -spring held within the crown.

Similar letters refer to similar parts in the different figures.

Referring to the accompanying drawings, A denotes the shoe, B the post attached to the shoe. The free end of the postis reduced in size, forming a shank B and a shoulder B at the end of the shank B, and upon opposite sides project the pins B B The distance between the free ends of the pins B equals the diameter of the post B. The crown is formed of an annular band or hoop O, the upper edge of which can form a setting for a stone 0, or the band may be closed at the top by a metal plate formed, if desired, integrally with the band itself. The inner wall of the band C is provided with a bead or rib forming a shoulder G for a blade-spring 0 (shown in detached View in Fig. 9) and which is supported by its ends upon the shoulder C The lower end of the band C is closed by a circu- .lar plate 1), (shown in detached view in Fig.

6, having a concentric circular recess D the diameter of the post B and preferably extending through the plate D. Upon the inner and upper side of the plate D are the two lips D D and inclosed between the lips is a concentric circular opening D the diameter of the shank B and two radial side openings D D to allow the pins B to pass through, and upon the upper side of the lips D are the notches D D to receive the pins B The space between the blade-spring C and the upper side of the plateD is equal to the thickest portion of the lips D so the central section of the blade-spring will rest against the lips I) and close the opening between them to the admission of dirt into the chamber between the plate D and stone 0'. The lips D are reduced in thickness at each end, so as to form the oppositely-inclined surfaces D upon each side of the notches D In putting in the button the shank B of the post B is insertedin the center hole I), which serves as a countersink to receive the end of the post B and hold it from lateral movement while it is being rotated in order to bring the pins B B into alignment with the radial openings D D The post and crown are turned upon each other until the pins B find the openings D allowing the shank B to enter the center opening D between the lips D with the body of the post B in the center hole D and with the end of the post resting against the bladespring The rotation of the post or crown a quarter-revolution in either direction will cause the pins B to slide up the inclined surfaces D drawing the post into the crown and bending the blade-spring C until the pins B reach the notches D when the tension of the blade-spring C will iorce the post out of the crown, carrying the pins B into the notches D and thereby lock the two parts of the button securely together. In order to unlock the button, the post B is pushed into the crown, bending the blade-spring C until the shoulder B strikes the lips D which limits the in ward motion of the post against the spring C This action of the post releases the pins B from the notches D when the rotation of a quarter-revolution will carry the pins back to the openings D releasing the crown from the post.

By the above-described construction I seek to secure several advantages not hitherto embodied in separable buttons of this class. By supporting the blade spring upon the shoulder 0 projecting from the inner wall of the annular band C, I cause the entire strain exerted by the spring 0 to be received by the band C, thereby relieving the central stone C from pressure, and by providing the post B with the shoulder B by which its motion is limited as it is being pushed into the crown I prevent the undue bending of the blade-spring, which would carry it against the stone 0'. The outer face of the crown-plate D is left free from all projections, and the recess D enables the crown to be readily centered upon the end of the post in putting the button together and held from any lateral movement while the crown and post are being turned upon each other for the purpose of bringing the pins projecting from the side of the post into alignment with the radial openings D D I am aware that a shoe and post provided with pins passing through openings in the crown-plate and engaging notches upon-their!- ner side of the crown-plate is not new; neither is it new to place a spring with the crown acting against the post to carry the pins into their notches; nor is it new to provide the inner side of the crown-plate with inclined surfaces in the manner I have herein described, and I do not herein claim these several features specifically as of my present invention.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a separable button,the combination of the shoe A, post 13, extending from said shoe, said post being provided with a shoulder B by which the entrance of the post into the crown of the button is limited and having its end reduced in diameter, forming a shank B, pins B B extending radially from said shank the width of said shoulder, so the distance between the ends of said pins will equal the diameter of the post B, plate D, forming a portion of the crown of the button and provided with a central hole D and openings D D, extending radially from said central hole and said plate having upon its outer face an annular countersunk recess D, concentric with said central hole and having its diameter equal to the diameter of said post to receive the end of the shank B and radial pins B B and hold the post concentrically with the central hole D while the post and crown are being rotated upon each other in order to bring the pins B B into alignment with the notches D D", and a spring held in the crown of the button and acting aga nst the end of said post to resist its entrance lnto the hole D substantially as described.

2. In a separable button, the combination, with a crown comprising an annular band C, provided with an internal shoulder 0 and a plate D, held in said band and provided with a central hole D to receive the post, of ashoe A, having a post B extending from said shoe with its free end entering said hole D and a blade-spring C with its ends resting upon the shoulder C and extending diametrically across the hole D, so as to act against the end of the post B as it is pushed into the crown, whereby the strain exerted by said spring will be received upon the shoulder C substantially as described.

Dated the 10th day of December, 1891.

IVILLIAM A. TURNER.

Witnesses:

EDMUND CONVERSE, RUFUS B. FOWLER.