US384448A - Shoe-maker s last - Google Patents

Shoe-maker s last Download PDF

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US384448A
US384448A US384448DA US384448A US 384448 A US384448 A US 384448A US 384448D A US384448D A US 384448DA US 384448 A US384448 A US 384448A
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last
mold
foot
flask
shoe
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50Prostheses not implantable in the body
    • A61F2/78Means for protecting prostheses or for attaching them to the body, e.g. bandages, harnesses, straps, or stockings for the limb stump
    • A61F2/80Sockets, e.g. of suction type
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D1/00Foot or last measuring devices; Measuring devices for shoe parts
    • A43D1/02Foot-measuring devices
    • A43D1/022Foot-measuring devices involving making footprints or permanent moulds of the foot
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/30Use of anatomy in making a mold or using said mold

Description

(No Model.)

G. W. KELLER. SHOE MAKERS LAST.

UNITED STATES PATENT OFFICE.

. GEORGE WM. KELLER OF PHILADELPHIA, PENNSY LVANIA.

- SHOE-MAK'ERS LAST.

SPECIFICATION forming part of Letters Patent No. 384.448, dated June 12, 1s 88.

Application filed April 29, 1857. Serial No. 236,505. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE WM. KELLER,

- a citizen of the United States, and a residentof Philadelphia, Pennsylvania, have invented certain Improvements in ShoeMakers Lasts,

of which the following is a specification.

ro ject of my invention being to provide a last of this character which can be cheaply manufactured and can be used with as much facility as an ordinary wooden last. This object I attain by first making a mold or matrix from the foot, and then casting or otherwise introducing directlyinto said mold or matrix lead or other material of such character that it will receive and retain thb lasting-tacks, so that the reproduction is capable of use as a last in the ordi: nary manner.

In the accompanying drawings, Figure 1 is.

a perspective view of a flask for making a mold or matrix in accordance With my invention, the different parts of the flask being shownas separated from each other. Fig. 2 is a sectional view showing, the flask with its mold fitted together and the mold filled, and

Fig. 3 is a sectional view showing the use of a core.

The flask shown in Fig. 1 comprises five parts-namely, the base A,-instep.portion B, opposite side portions, D D, and heel portion Fthe general conformation of these parts being such as is required by the average human foot. The flask'is made of any suitable material, preferably metal, and the different parts of the flask are constructed for being readily fitted together or detached from each other.

In making the mold ,a stocking is drawn on over the foot, and this stocking is lubricated, in order to prevent the plaster-of-paris or other material or composition of which themold or matrix is to. be made from sticking thereto. A portion of the plaster or other material being poured into the base, the foot' is placed therein, and the base is then filled to such a level as will not cause any portion of the material to overlap any part of the foot, and thus prevent the withdrawal of the foot from the mold. When the material inthe base has become set, the upper surface of the same is lubricated or otherwise treated toprevent the material afterward inserted from sticking thereto, and the upper portions of the flask are then applied to the. base portion so. as to inclose the foot, the flask being then fillediwith the material over the instep, around the heel, and up to the desired point on the ankle. When the material in the upper part of the flask has become set, the parts of the flask are detached from each other, the'por'iion B being lifted from the instep, the portion F removed rearwardl-y from the heel, and the portions Dremoved laterally, whereupon the foot is free to be lifted from the base portion of the mold.

l'Vhen the parts of the flask with their contained sections of the mold are again fitted together, they form a matrix, by which may be formed a reproduction of the foot from which This may be done by the mold was made.

simply pouring molten metal-such as lead into the mold; or themold may be filled with t such that'nails or pegs can be driven into the same for securing insoles to the last, or for other purposes.

The last is preferably provided witha core, G, of wood or composition, as shown in Fig. 3, the metal or other material filling the space between said core and the interior of the mold, so as to form a shell around the core.

When it is desired that the last shall have a removable instep portion, suitable dividingplates, 0,, may be inserted in the mold before the formation of the last therein, so as to separate the instep portion of the last from the other portion, and the same plan may be adopted when the last is provided with a core, the latter being made in two parts, as shown in Fig. 3. i

I am aware that a last forming a reproduction of an individual human foot is not new, it having been before proposed to make such a last by a series of operations comprising the formation of a sectional matrix from the foot,

the making of a plaster cast in said matrix,

the use of this plaster cast as a pattern for the formation of a sand mold, the casting of an iron last in said mold, and the drilling and plugging of said iron last to provide the same with portions for receiving the lasting-tacks; but it will be observed that I dispense with the last three and decidedly most costly steps of this process, and therefore make a last which is much cheaper than one made by the process referred to, my improved last being also much more acceptable in use than one made in the manner just described, for the reason that said improved last can be used with the same facility asa wooden last,whereas the use of a cast-iron last plugged for receiving the lasting-tacks necessitates the driving of these tack-s always in the same places, and consequently demands the exercise of much greater care than usual in the lasting operation.

I therefore claim as my invention and desire to secure by Letters Paten t 1. The within-described flask for making a mold of the foot, said'flask comprising a base portion, A, for the sole of the foot,- an instep portion, 13, covering the top of the foot, a'portion, F, at the rear of the heel, opposite side portions, D, interposed between the heel portion and instep portion above the base, said side portions having flanges projecting lIJ- wardly toward the foot, which are adapted to separate the side portions from the other portions of the flask, and fastening devices for separably securing the various portions of the flask together in their proper relative positions, all substantially as specified.

2. A shoe-makerslast composed of cast-lead or equivalent material, as described, and forming a reproduction of an individual human foot, all substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE \VM. KELLER.

\Vit nesses:

ALBERT PorKINs, HARRY SMITH.

US384448D Shoe-maker s last Expired - Lifetime US384448A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2487965A (en) * 1947-06-27 1949-11-15 Frank G Dresser Manufacture of shoe lasts
US2620529A (en) * 1949-07-01 1952-12-09 Brown Ind Inc Pattern and pattern making
US2708773A (en) * 1951-08-06 1955-05-24 Herman W Richter Method for making molds
US2891285A (en) * 1956-01-04 1959-06-23 Kaplan Harry Method of making a mold for casting a shoe last
US2907067A (en) * 1957-08-19 1959-10-06 Burger Joseph Method of making a cast preparatory to making a shoe
US3726620A (en) * 1971-11-10 1973-04-10 W Morton Form-fitted protective headgear liner mold
WO1993008008A1 (en) * 1991-10-21 1993-04-29 George Carl Riecken Foot orthosis and method
US5364580A (en) * 1992-05-19 1994-11-15 Mark Prent Body part mold system
US6925723B1 (en) * 2003-05-13 2005-08-09 Nike, Inc. Three-dimensional template for footwear design
EP2433517A1 (en) * 2009-05-21 2012-03-28 Treksta Inc. Last for manufacturing shoe

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2487965A (en) * 1947-06-27 1949-11-15 Frank G Dresser Manufacture of shoe lasts
US2620529A (en) * 1949-07-01 1952-12-09 Brown Ind Inc Pattern and pattern making
US2708773A (en) * 1951-08-06 1955-05-24 Herman W Richter Method for making molds
US2891285A (en) * 1956-01-04 1959-06-23 Kaplan Harry Method of making a mold for casting a shoe last
US2907067A (en) * 1957-08-19 1959-10-06 Burger Joseph Method of making a cast preparatory to making a shoe
US3726620A (en) * 1971-11-10 1973-04-10 W Morton Form-fitted protective headgear liner mold
WO1993008008A1 (en) * 1991-10-21 1993-04-29 George Carl Riecken Foot orthosis and method
US5275775A (en) * 1991-10-21 1994-01-04 Riecken George C Method for making an insole
US5358394A (en) * 1991-10-21 1994-10-25 Riecken George C Apparatus for making an insole
US5364580A (en) * 1992-05-19 1994-11-15 Mark Prent Body part mold system
US6925723B1 (en) * 2003-05-13 2005-08-09 Nike, Inc. Three-dimensional template for footwear design
EP2433517A1 (en) * 2009-05-21 2012-03-28 Treksta Inc. Last for manufacturing shoe
EP2433517A4 (en) * 2009-05-21 2013-10-16 Treksta Inc Last for manufacturing shoe

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