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Publication numberUS1645111 A
Publication typeGrant
Publication dateOct 11, 1927
Filing dateMar 8, 1926
Priority dateMar 8, 1926
Publication numberUS 1645111 A, US 1645111A, US-A-1645111, US1645111 A, US1645111A
InventorsJohn Michelsen
Original AssigneeJohn Michelsen
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Calk attachment for boots
US 1645111 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

"W 1645 111 Oct. 11, 1927. J. MICHELSEN y 1 1 CLK ATTACHMENT FOR BOOTS Filed March 8, 1926 Arrone/Vey? Patented Oct. 11, 1927.




Application filed-.March 8, 1929.

My invention relates to. improvements in call attachments for boots, the objects of which are to provide meansI whereby the at'- tachment maybe adjusted to lit a. variety of shapes and sizes ofk boots, and maybe securely yet detachably secured.thereto.Ak Furthery objects are to provide means whereby the clamping boltl is held against detachment from the device, so that no parts may be lost, rendering the attachment incomplete when required for fitting to other boots.

The invention consists essentially of a pair of scissor like members fitted with calks and adjustable clips which are adapted to be fastened to the sole and heel of a rubber or other boot by drawing one end of the members towards each other by means of a bolt or other suitable fastening, as will be more fully described in the following specification in which Fig. 1 is a side view of the invention.

Fig. 2 is a plan view showing the attachment secured to the sole and heel of a rubber` boot, with the heads of some of the rivets removed to show the clip adjusting means.

Fig. 3 is an enlarged detail view of the clamping means taken on the line 3-3 of Figure 2.

In the drawings like characters of reference indicate correspondingl parts in each figure.

The numeral 1 indicates generally a boot, having a sole 2, an arch 3, and a heel a. The numeral 5 indicates generally the attachment which is formed with a pair of curved members 6 having calks 7 projecting downwardly therefrom and preferably a plurality of apertures 8 adjacent Vtheir rear ends of which they may be secured by screws to the. heel 4 when intended for permanent attachment. The members 6 are slotted adjacent their forward ends, the slot in one member being formed longitudinally of the device as at 9 and that in the other member being formed transversely as at 10, shown in dotted line, through which slots a rivet 11 is loosely carried, so that the ends of the attachment can move about a variable fulcrum when being adjusted toV a boot.

The numeral 12 indicates a plurality of clips which are adapted to embrace the welt of the sole 2 and are each provided at their inner ends with a rivet 13 which projectsV through a slot 14 having two or more rightangular extensions 15, all of which are diagonally disposed with respect to the boot Serial No. 93,294.

1 so that the extensions 1,5 vary in distance from the edge of the sole permitting therivet 13 to be held in whichever slotl is required to bring the` clip into properv grip.- ping contact with the Welt-of the sole.

The numeral 16 indicates a pair of clips which are adapted to grip. the heel-4,-V each of these clips is preferably provided with a diagonally disposed slot 17 whose longitudinal axis is directed to the rear centre of the heel and which is fulcrumed upon a rivet 18 carried in the rear end of the member 6. The numeral 19 indicates a pair of clamps secured to the member 6, preferably formed of sheet metal downwardly turned at their inner or opposing ends as at 20 and 21 respectively, the end 20 being provided with an oval aperture 22 through which a bolt 23 is adapted to project. The end 21 is slotted to permit the passage and removal of the bolt 23 and is turned outwards as at 24 to forni a lip for the purpose of engaging one side of a nut 25 upon the bolt 23. The bolt 23 is riveted up at its outer end to prevent the removal of the nut 25. The clamps 19 are bent over at their outer ends as at 26 and are provided with a pair of prongs 27 which are adapted to be drawn into the sides of the heel 4 of the boot as the bolt 23 is driven up into the nut 25.

Having thus described the several parts of my invention I will now briefly explain its adjustment.

The attachment is laid upon the sole of the boot to be lit-ted and the clips 12 moved so that their rivets 13 come to rest in whichever slot extension 15 is required to give the proper spacing between the clips, so that when the attachmentl is drawn up to fixed position the sole shall be properly gripped thereby. The clips 16 are allowed to engage the heel 4 when lying in a position approximately at right angles to the length of Athe boot, so that as the bolt 23 is tightened the clips ride upon their rivet 18, the slots 17 moving` therealong until a position of rest is attained, when it will loe found that the clips have assumed an angle converging towards the centre of the heel and the pulling strain of the clips at opposite ends of the boot is opposed. As the bolt 23 is tightened, the prongs 27 are drawn into the sides of the heel soy as to prevent any adverse strain imposed upon the attachment from drawing its centre portion downwards from the arch 3 of the boot.

y When removing the attachment the bolt 23 is slaclrened Within the nut 25 which is allowed to be Withdrawn from the slotted usV end 2l of the clamp and the bolt remain in suspension, as shown in dotted line in Figure 3, within the oval aperture 22 of the end 2O and the members 6 spread apart to release the several clipst'rom the boot, `What l claim as my invention is:

A calli attachment for boots comprising` a pair oi' relatively `movable members pro vided With clips for attaching same to the sole and heel of a boot7 a pair of transverse plates fastened to the lower surfaces of said members and arranged in alignment, said plates being:l positioned to liein proximity to the breast of the bootlieel and beingy bent rearwardly and inwardly at the outer ends to provide prongs adapted to be imbedded in the sides of the heel when the plates and relatively movable members are' drawn togetlier, the inner ends of said plates being bent to provide 'opposing parallel lugs and a vtiohtelling devices passing through openings termed in said lugs and operable to draw the lugs and attached members together so as to imbed the prongs ot the piates Within the heel of the boot as aforesaid.

v Dated at Vancouver, B. C., this 24th day

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2595694 *May 4, 1951May 6, 1952Ogden Floyd HDetachable shoe sole
US4296557 *Jan 31, 1980Oct 27, 1981Pajevic Paul DShoe with sole cushioning assembly
U.S. Classification36/7.6
International ClassificationA43C15/06, A43C15/00
Cooperative ClassificationA43C15/06
European ClassificationA43C15/06