US447855A

US447855A - Island

Info

Publication number: US447855A
Authority: US
Publication date: 1891-03-10
Anticipated expiration: 1908-03-10

Description

(No Model.)

W. F. WHITING.

sE-PARABLE BUTTON. NOA. 141855. Patented Mar. 10,1891.

VILLIAM F. VHITING, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO HIRAM IAIOVARDv AND STEPHEN C. IIOWTARD, OF SAME PLACE.

SEPARABLE BUTTON.

SPECIFICATION forming part of Letters Patent No. 447,855, dated March 10, 1891.

Application iiled JunewZS, 1890.

To all whom t may concern:

Be it known that I, WILLIAM F. WHITING, of Providence, in the county of Providence and State of Rhode Island, have invented a certain new and useful Improvement in Separable Buttons, of which the following is a specilication.

My improvement relates to that class of buttons in which the head or front is detachable from the back-plate. Such buttons are commonly termed separable buttons.

I will describe a button embodying my improvement, and then point out the novel features in a claim.

In the accompanying drawings, Figure l is a side view of the head or front and attached postsection of a button embodying my improvement. Fig. 2 is a side view of the backplate and attached post-section. Fig. 3 is a front View of the back-plate and its attached postsect-ion. Fig. 4 is a back view of the head or front and its attached post-section. Fig. 5 is a central longitudinal section of the button, taken at the plane of the dotted line Fig. 4. Fig. G is a side view of the principal part of the head or front and its attached post-section. Fig. 7 is a front view of this principal part. Fig. Sis a side View of the spring detached. Fig. 9 is a side View of one of two bolts, whereby the head or front may be released from the back-plate. Fig. 10 is a front view of a notched ring which is comprised in the head or front. All these figures are made ou an enlarged scale.

Similar letters and numerals of reference designate corresponding parts in all the iigures.

A designates the head or front, and B designates the back-plate, of the button. The backplate is composed of two parts. One part is a tubular portion b, having near the front end a tubular portion or rim b', and rearward of this rim two holes b2. The other part is a plate b4, which extendsover the rear of the iange bs of the part b and has its edges bent forward around the edges of said flange. The tubular part b forms a post-section, attached to t-he bacl-plate. I

The head or front A comprises a postsection a, which is made of a tube notched at the forward end and having scmicircular Serial No. 357.078. (No model.)

flanges d extending from its notched extremity. This post-section a will be of a size to iit within the post-section h, which is attached to the back-plate. In the post-section a is arranged a spring a2, which consists of a strip of metal bent between the ends into the form of the letter U and of such dimensions that it will fit within the post-section a. It is made slightly thicker or wider at its extremities, and these thickened or widened portions have notches 1 in the outer side and projections 2 3 on opposite sides of the notches 1, located just rearward of the flanges a', that extend from the post-section a. The widened or thickened extremities of this spring are free to move outward through the sides of the notched portion of the post-section. Rearward of the anges a", that extend from the post-section a, a notched ring a3 is arranged. The notches of this ring correspond in position and size with the sides of the notch in the post-section and the space between the flanges a. Rearward of this notched ring is a plain or complete ring a4. -A sheet-metal cap-plate a5, of circular form, having a rear- .vardly-bent ange, is slipped over the semid circular flanges a', the notched ring a3, and the complete ring a4, and rearward of the latter has its flange bentinward, so as to fasten all the parts together. Bolts a6 work through the space between the anges a. Their inner ends enter the notches formedin the ring a2. Their outer ends lprotrude through holes in the flange of the cap-plate a5. These bolts h-ave rearward projections al, which enter the notches of the ring as. the spring bear against the inner end of the bolts a, and in this way the spring forces the bolts outward as far as they can move. The projections a7 of the bolts will come in contact with the iiange of the cap-plate and arrest their outward movement. The bolts may be pressed inwardv against the resistance of the spring until their projections a7 are forced against the inner ends of the notches in the ring a2. The front edges of the lbolts bear against the cap-plate and the rear side against those portions of the notched ring a3 which are inward of the notches.

The proj ections of the springs are in such position that when the tubular post-section b The projections 2 of IOO ` back-plate.

of the back-plate B is slipped over the postsection a of the head or front A they Will be forced outwardly by the resilience of the spring to engage with the holes b2 of the said tubular post-section b. When this occurs, the two shank portions will be engaged and thehead or front A thereby fastened to the The head or front may be separated from the back-plate by pressing against the outer ends of the bolts in such manner as to force them inwardly, as this will cause the extremities of the spring to be forced inward in such manner that their projections 3 will be withdrawn from the holes b2 in the tubular post-section b of the back-plate.

Preferably the inner ends of the bolts d6 are charnfered off or inclined rearwardly, and the opposite surfaces of the projections 2 of the spring d3 similarly chamfered or inclined.

By my improvement I produce a very siniplc and efficient button, wherein the head or front may be separated from the back-plate and reunited therewith at pleasure.

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

In a separable button, the combination of a head or front having an attached tubular post-section notched at the forward end, spring-arms fitted in said post-section and provided with notches l and projections 2 3, bolts a6, Whose outer ends work through holes provided in a cap-plate which is comprised in said head or front and whose inner ends coact with the projections 2 of the spring-arms, projections di, extending from said bolts, a ring a3, placed rearward of said bolts and having notches for receiving the projections a7 thereof, and a back-plate having a tubular post-section b, providedwith holes b2 for engaging with the projections 3 on thc springarms, substantially as specified.

In testimony whereofI have signed myname to this specification in the presence of two subscribing witnesses.

WILLIAM F. \VITITING.

Witnesses:

JOHN DoDD, N. II. SUTTON.