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Publication numberUS427136 A
Publication typeGrant
Publication date6 May 1890
Filing date4 Feb 1890
Publication numberUS 427136 A, US 427136A, US-A-427136, US427136 A, US427136A
InventorsJohn S. Walker
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Shoe-spring
US 427136 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

(NQ Model.)

J. S. WALKER.

SHOE SPRING.`

No. 427,136. Patented May 6,1890.

F' .2 2%. l e QN-hm" Jg lt MII' f r It II v C Fi L @mi/Masern UNITED STATES PATENT OEEICE.

JOHN S. VALKER, OF CLAREMONT, NIV HAMPSHIRE.

SHOE-SPRING.

SPECIFICATION forming part of Letters Patent No. 427,136, dated May 6, 1890.

Application filed February 4, 1890. Serial No. 339.138. (No model.)

T0 all whom .it may concern,.-

Be it known that I, JOHN S. WALKER, a citizen of the United States, residing at Claremont, in the county of Sullivan and State of New Hampshire, have invented certain new and useful Improvements in Shoe-Springs; and I do hereby declare the following to be a f ull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and us the same.

My invention relates to certain novel and valuable improvements in springs adapted for application to boots and shoes for the purpose of facilitating movements of the human body in walking orjumping; and the objects of my invention and improvements are, first, to provide a spring of any suitable shape with means whereby it can be readily attached to or detached from a boot or shoe; second, to provide a compound spring with integral fastenings for attaching the same to the sole of a boot or shoe, and, third, to combine with a jumper-spring adapted for a' boot or shoe auxiliary springs of metal, rubber, or other suitable material interposed between the main spring and a point located at or near the instep of the foot. I attain these objects by the means illustrated in the accompanying drawings, in whichA Figure lis a side elevation of my improved jumper-spring, showing one practical mode of aixing it to a shoe, which is indicated in dotted lines. F-ig. 2 is a top view of my improved jumper-spring. Figs. 3 and flare perspective views showing a toe or heel dovetail attachment for securing the spring-jumper to a boot or shoe, both attachments being constructed of a female portion secured to the shoe and a male portion secured to the footrest of the spring. y

Similar letters of reference refer to like parts in all the views. i Referring to the annexed drawings by letters, A designates the main jumper-spring, which is preferably made of steel, and which in cross-section is flat. Taken longitudinally,

this spring presents at a, a looped toe portion, the upper part b of which is extended backward to form a toe-seat, on which may be a male dovetail locking-lug c, adapted to interlock with a corresponding female socket formed in a plate fixed to the sole of the shoe. From the loop a the springA is bowed downward to form a spring-tread d for the ball of the foot; thence "the sole part of this spring is bowed upwardly, terminating in a loop-shaped spring-heel tread e, which is extendedV forwardly, forming a heel-seat f, on which is a lug f, corresponding to the lug c at the toe of t-he spring A, and adapted to engage with a heel-plate.

B designates a spring, which is interposed vbetween the sole portion of the main spring and the instep. I therefore term this spring an auxiliary instep-spring7 as it aids in sustaining the weight of the body. At the same time it allows perfect freedom of movements of the foot.

The spring B, which I show in the annexed drawings, is made of steel, like the wellknown semi-ellipticcarriage-spring; but this auxiliary spring may be spiral, helical, or of any other suitable shape, and it may be made of india-rubber.

Vhile I have above referred to metal dovetail interlocking fastenings for securing my improved jumper-spring to a boot 0r shoe, I do not limit myself to such fastenings, as many of the well-known skate-fastenings may be employed for this purpose; or I may use the well-known skate-strap fastenings.

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

The within-described improved article of manufacture, consisting of a shoe-spring formed integral and having a curved foot-rest, a depressed heel-seat for the shoe, the forward and rear curved extensions, the, sole portion curved to form front and rear short treads d c, and an intermediate arch between these treads, in combination with an elliptic spring secured to the said foot-rest and bearing at or near the said short treads, and suit able fastenings for securing the spring to a shoe, all as specified.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN S. WALKER. Witnesses:

Jos. C. ENRIGHT, J. S. WALKER, Jr.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4534124 *12 Sep 198313 Aug 1985Joachim SchnellSpring-action running and jumping shoe
US5367790 *15 Apr 199329 Nov 1994Gamow; Rustem I.Shoe and foot prosthesis with a coupled spring system
US5621985 *2 Oct 199522 Apr 1997Frost; John H.Jumping assist system
US5701686 *29 Nov 199430 Dec 1997Herr; Hugh M.Shoe and foot prosthesis with bending beam spring structures
US6029374 *28 May 199729 Feb 2000Herr; Hugh M.Shoe and foot prosthesis with bending beam spring structures
US644987810 Mar 200017 Sep 2002Robert M. LydenArticle of footwear having a spring element and selectively removable components
US660104217 May 200029 Jul 2003Robert M. LydenCustomized article of footwear and method of conducting retail and internet business
US692573219 Jun 20039 Aug 2005Nike, Inc.Footwear with separated upper and sole structure
US701686721 May 200221 Mar 2006Lyden Robert MMethod of conducting business including making and selling a custom article of footwear
US710723524 Oct 200212 Sep 2006Lyden Robert MMethod of conducting business including making and selling a custom article of footwear
US73343517 Jun 200426 Feb 2008Energy Management Athletics, LlcShoe apparatus with improved efficiency
US762451530 May 20061 Dec 2009Mizuno CorporationSole structure for a shoe
US775277511 Sep 200613 Jul 2010Lyden Robert MFootwear with removable lasting board and cleats
US777030623 Aug 200710 Aug 2010Lyden Robert MCustom article of footwear
US77888247 Jun 20057 Sep 2010Energy Management Athletics, LlcShoe apparatus with improved efficiency
US82098838 Jul 20103 Jul 2012Robert Michael LydenCustom article of footwear and method of making the same