US1561121A - Last - Google Patents

Description

Nov. 10,1925- 1,561,121

' E. S. SPINNEY LAST Filed Nov. 17, 1922 2 Sheets-Sheet 1 Nov. 10, 1925- m w w x w Patented Nov. 1%, 1925.

warren stares PATENT QFFICE.

EDMUND S. SPINNEY, 0F ABINGTON, MASSACHUSETTS, ASSIGNOR TO JEREMIAH FITZ- PATRICK, OF BROCKTON, MASSACHUSETTS, AND CHARLES H. FITZPATRICK, OF

NORTH ABINGTON, MASSACHUSETTS.

LAST.

Application filed November 1'7, 1922. Serial No. 601,540.

To all whom it may concern:

Be it known that I, EDMUND S. SPINNEY, of Abington, in the county of Plymouth and State of hlassachusetts, a citizen of the United States, have invented a new and useful Improvement in Lasts, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification, in explaining its nature.

The invention relates to transversely-divided lasts comprising a fore part section and a heel section movable on an inclined line of cut relatively to one another so as to cause the heel section when moved upwardly to move forward sufficiently to shorten the last and thereby enable a boot or shoe to be readily removed from the last.

The object of the invention is to provide means for connecting the two sections of the lastwliereby they may have contact with one another along the line of out only when the sections are combined in the complete last; whereby a tight joint will be'obtained between the sections when combined and whereby when the heel section is moved upwardly with a forward movement for shorteningthe last it will also have a slight backward movement away from the fore part section, thus ensuring an easy disconnection of the heel section. p

The invention can best be seen and understood by reference to the drawings, in which Figure 1 is a side elevation of a last fitted with the in'iproven'ient constituting the invention, said improvement and parts of the last sections adjacent to it l' eingshown in section.

Fig. 2 is a front elevation of the heel sectien.

Fig. 3 section. V

Fig. lis a section on the line 4 l of Fig. 1, and

F 5 is a section like the sectional part of Fig. l excepting that the heel section is shown in an elevated'position with relation to the fore part section.

Fig. 6 is a side elevation of a slight modiis a rear elevation ofthe fore part fication to which special reference will hereinafter be made.

Fig. 7 is a longitudinal section of the last shown in Fig. 6 with the last partly broken.

Referring to the drawings i 1 represents the fore part section and 2- the heel section. 3 represents the inclined line of out along which the sections are divided when combined in the complete last. 4 represents the rear face of the fore part section and 5 the front face of the heel section.

The sections are combined by bars 6 and 7, respectively, secured to the respective sections. These bars are partly circular in cross section, the bar 6 having a rib extending along its back. The bars interlock and are slidable upon one another. The bar 6 is socket-ed within the rear face 4 of the fore part section and the bar 7 in the front face 5 of the heel section, the bars being secured to the respective sections by screws 8. The arrangement of the bars is such that the line on which they slide is at a slight angle to the line of cut 3 between the sections so that as the heel section is moved upwardly it will move or draw away from'the fore part section or, if moved downwardly,it will gradually move into contact with the fore part section, contact being made when the two sections are properly aligned to form the complete last.

The arrangement of the bars for obtaining the result justoutlined is initially effected by the socketing of the bars in. the respec tive sections. To this end a boring is made in the last before it is divided. This boring is started at the top' of the last in the front part of the heel section at a point where the front edge of the boring will lie just within the line of cut on which the last is to be divided. The boring is then .made into the last to cross the line of cut, the central line of the boring crossing the line of cut at a slight angle, which angle is the same as that at which the bars 6 and. 7 slide relatively to the line of cut when these bars are fixed to the respective last sections as provided for by the boring. The boring is not continued entirely through the last, but terminates at the last which represents the bottoin endof provided by the boring, and" fixed in place to bccxpl'ained After the boring has been finished the'last is divided and the bars 6 and 7 are placed in their respective sockets When fixed the bars 6 and 7 will extend upwardly from the bottom" of the boring to a point inwardly removed from the top of the last. An opening'will then be left by the boring above the top end of the 'bar 7, and this opening is closed 'bya lng :10'1'fiXl2d within the opening and forming a part of 1 the last.

For combining the two sections of the last the lower end of the bar 7 of the heel section is applied to the top end of the bar 6 of the fore part section. The heel section niay t-hen 'befdrawn into place, the bar 7 sliding upon the "bar 6. \Vhen the movementofthe heel sectionis'started the front face 5 of the heel section occupies a position parallel with but separate from the position occupied by the rear face" 4' of the enable the heel section when lifted to move fore part section, and there is no substan-I,

tial-contact between these surfaces until the heel section has been moved into a proper aligned position with theforepart section for vforming the coin'plete last. At such time there will not only be a contact be tween the faces of the respective sections, but the top end of the bar '6 will conta'ct with the inner end "of the plug 10, and the bottom end of the bar 7 will contact with the surface 9 at the bottonr'of theboring initially made for socketi'ng the bars. In this connection it shouldbe explained that the parts shouldbe so proportioned that the ends of the bars will contact with the surfaces 9 and 10 just referred to, at. just.

the instant that the surfaces land 5 of the sections contact with one another, thereby preventing the surfaces 4 and-5 becoming so wedged together as to'pre'vent an easy removal or elevation of the heel section. When the heel section is lifted ormoved upwardly such movement shortens the last but simultaneously with such shortening the heel section beginsrto move away from the fore part section. In other words, at the very instant the heel section is'started on its upward movement a continuance of that move-' ment is not in any way interfered with by frictional contact with the fore part section inasmuch as the heel section, is entirely moved out of contact with the fore partsectlon.

It is preferred that the two sec'tionsb'ereleasably locked together when combined for forming the complete last, and to this end' i on there is aflixed to one of the screws 8 which assists in the holding of the bar '7 onto the heel section a spring clip 11 which slides.

- fore part section; the boring and which serves a purpose later the last.

ouringtl'ie bars to said sections.

thescrews 8 which fasten the bar to'the In Figs. 6 and'7 the-line of cut 3" along which the surface of the heel and fore over' and locks in behind the head of one of part sections meet when combined in the 7:

complete last, instead of being a straight on a corresponding curve, the bars co-operating with one another and functioning the same as before described. 'Thecurvature' of the line of cut between an twosections of:

thelast is for the purpose of enabling a quick shortening of the last'and an easy removal of the heelsectionwhen lifted and the last broken. When the heel section is lifted for breaking the last it moves away from the fore part section due to the action of the connecting bars 6 and 7, yet owing to the inclination of the line of out between the last sections the effect will be'to shorten The curvature of the line of out between the last sections is such as will forward for shortening the last in a degree more pronoui'ic'ed than any tendency it will have to move away from the fore part section for lengthening "the last and such action is more rapid witha heel section mov-' tion, I claim and desire torsecu're by Let-' ters Patent of the United States 1. A lastcomprising a fore-part section and a heel-part section having a boring therein along the line of cut between said section's when in aligned position, interlocking bars slid-able on one another contained within said boring and secured resp'ective-l'y to said last section's whereby said sections will be maintained by -the bars in aligned position and be movable into and out of aligned position, said bars being so arranged that theline on which they 'sllde is at an angle with relation to the line of cut 7 between the sections whereby. the sections will move relatively toward one another when moved into aligned position and outwardly away from one another when moved out of aligned position, and means forse- 2. A last comprising a fore-part section and a heel-part section having a boring when in aligned position, interlocking bars slidable on one another contained within said boring and secured "res ectivel to said V therein, the central line of said boring V f crossi'ngthe line of cut between said sections last sections, and means for securing the bars to said sections.

3. A last comprising a fore-part section and a heel-part section having a boring 5 therein, said boring extending from the top part of the last in the front part of the heel section With a portion of the boring lying just Within the line of out between the last sections When in aligned position and thence along the line of cut at a slight angle thereto with extension into the fore-part section, interlocking bars slidable on one another contained Within said boring and secured respectively to said last sections, and means for securing the bars to said sections.

EDMUND S. SPINNEY.

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