US1231767A - Detachable heel. - Google Patents

Description

C. P. MAHER.

DETACHABLE HEEL. APPLlcATloN FILED Auaiz, 191e.

Patented July 3, 1917.

i u I WWTF@ @TAT Ii CHARLES PATRICK MAI-IER, OF MONTREAL, QUEBEC, CANADA.

DE'IAGI-IABLE HEEL.

reenter.

Specication of Letters Patent.

Patented `duly 3, 1.9 1 7.

Application filed August 28, 1916. Serial No. 117,277'.

To all whom t may concern.' Be it known that I, CHARLES PATRICK MAKER, a subject of the King of Great `Britain, and resident of 1836 Hutchison street, in the city of Montreal, Province of Quebec, Dominion of Canada, have invented certain new and useful Improve ments in Detachable Heels, of which the following is the specification.

The invention relates to improvements in detachable heels as described in the present specification, and illustrated in the accompanying drawings that form part of the same.

The invention consists essentially in the novel means of fastening the removable piece and the arrangement of the pieces in relation to the permanent attachment to the shoe.

rlhe objects of the invention are to devise a simple form of heel in leather, rubber or other material, that may be detached in a moment and replaced by a new tread piece or one from the other shoe, to effect economy in the use of rubber or such like heels and generally to provide a serviceable and durable detachable heel.

In the drawings, Figure 1 is a plan view of the piece adapted to be rigidly secured to shoe, showing one member of the fastening device.

Fig. 2 is a plan view of the detachable tread piece showing the other member of the fastening device.

Fig. 3 is a cross sectional view through the upper piece on the line A-B in Fig. 1.

Fig. 4 is a cross sectional view through the upper piece on the line C-D in Fig. 1.

Fig. 5 is a cross sectional view through the upper piece on the line E-F' in Fig. 1.

Fig. 6 is a longitudinal sectional view of the upper piece on the line G-l-l in Fig. 1.

Fig. 7 is a cross sectional View of the tread piece on the line I-J in Fig. 2.

Fig. 8 is a cross sectional view of the pieces assembled showing the fastening.

Fig. 9 is a plan view'of the locking bolt.

Like numerals of reference indicate corresponding parts in each figure.

Referring to the drawings, the tread piece 1 is made of rubber, leather or other suitable material and is recessed to receive the star-shaped plate 2 having the outwardly projecting and inwardlyturned lugs 3 in pairs, the points of the star extending between and beyond said lugs, said plates be ing fastened in any appropriate manner to said tread piece, as in rubber pieces it will be secured in the molding, in leather likely by a screw et as shown. This plate 2 is shown as of star shape7 but it may be made many different shapes and have the lugs variously arranged.

The nailing piece 9 is formed with a plate recess 10 having the ledges 11 on which the plate 12 is supported, said plate having the lug holes 13 corresponding to the number and arrangement of lugs from the tread piece and here shown in pairs, and in addition the central screw hole 14, the border nail holes 15, and the catch hole 16 near the front, the slot 17 in front of said hole in the edge and in the center of the larger edge slot 18. The plate 12 is fastened to the nailing piece 9 by the screw 2O and over the cushion spring 21, preferably encircling said screw.

The screw 20 also extends through the locking bolt 22 in the form of a slotted plate, having the central guiding slot 23 for the screw, the side edge slots 24 for unlocking purposes and the spring catch slot 25 behind the upwardly turned thumb flange 26 and the downwardly turned shield 27. The spring catchv 28 is securely riveted to the under side of the said locking bolt to the rear of the slot 25 and is formed with a front flange 29 and a cross ridge 30 forming the catch proper.

The recess in the said nailing piece 9 is closed in at the front end under the plate 127 except in the center, where it is open to permit the depression of the spring catch 2S and this opening ordinarily is protected by the shield lug from the plate 12.

rlhe parts have now been described in detail and in order to set forth the invention clearly the'operation and use will be now explained.

The nailing piece 9 may be made of leather or rubber as desired though in rubber heels it is preferable that the two parts shall be made of the same material, especially as the nailing piece provides an eXtra cushion intermediately arranged between the tread piece and the shoe proper.

The nailing piece 9 is secured through its nail holes to the upper layers of the shoe heel as customary in attaching rubber heels to shoes. This action further secures the plate 12 to said nailing piece and also to the shoe,v thereby making a rigid fastening CJI member7 which still can be removed and remain intact to be secured to a new pair of shoes.

The tread piece is fastened on by inserting its projecting lugs into the lug holes in the plate 12 and thrusting the locking bolt back into place, the said catch ridge of the spring catch snapping into the corresponding slot in said plate l2.

To remove the tread piece the front flange of the spring catch is pushed downwardly and thc thumb lFlange of the locking bolt grasped by the thumb or an instrument and the said bolt Withdrawn tov the limit of its outward travel, which action has the effect of releasing the locking lugs7 thus permitting the removal of the tread piece.

lVhat I claim is A detachable heel in two parts, the upper part having a recess lea-ding inwardly from the frontend, a permanent plate countersuuk in the heel part surface around said recess andrigidly secured having lugholes therethrough arranged in pairs1 a sliding `plate having slots in the sides intermediate of its length in alinement with said lug holes, a central pin slot in the inner portion and a spring tongue at the front end forming an automatic latch mechanism in conjunction With a corresponding slot in said permanent plate, aI screw pin extending through said pin slot into said heel part, a helical spring encircling said screw pin in said recess and holding said sliding plate resiliently to said permanent plate, a heel part 'forming the tread piece, and a star shapedA plate countersunk in said tread and rigidly secured and having outwardly eX- tending and inturned lugs Vregistering with said lug holes.

Signed at'Montreal, Quebec, Canada,'this 22nd day of August 1916. Y

CHARLES PATRICK MA1-IER.

lVitnesses GEORGE D. QUILLIAM, V. I. FETHERSTONHAUGH.

Copies of this patent may he obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, C.

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