US1300642A - Edge-trimming machine. - Google Patents

Edge-trimming machine. Download PDF

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Publication number
US1300642A
US1300642A US25004618A US25004618A US1300642A US 1300642 A US1300642 A US 1300642A US 25004618 A US25004618 A US 25004618A US 25004618 A US25004618 A US 25004618A US 1300642 A US1300642 A US 1300642A
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Prior art keywords
edge
gage
arm
trimming
knife
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Expired - Lifetime
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US25004618A
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Lottie M Peck
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D49/00—Machines for pounding

Definitions

  • the object of this invention is to provide means for rapidly and accurately trimming the linings of shoes and more that portion of such linings'which is to be trimmed into parallel relation to those portions of the uppers where the buttons or studs, as the case may be, are to be located. Tn thus trimming the lining it is-desirable and customary to trim slightly back from the edge of the upper and this has been a particularly awkward and uncertain operation because of the fact that the upper lies on top of and hides the lining from view during the trimming operation.
  • Mypresent improvement provides a novel construction of undercutting knife and gage which automatically locates the cut edge of the lining a given distance back from the edge. of the upper.
  • Figure 1 is'a plan view of a machine work table having mounted thereon a cutting tool embodying my present improve ment, and also showing, as in the act of being trimmed a section of lining and superposed leather upper.
  • Fig. 2 is an under side plan of the said improved tool.
  • FIG. 3 is an edge view of the work table and of the work mounted and of said tool, and in Fig. 4 I have shown the said tool in perspective.
  • the letter a indicates a portion of the work-supporting table of an edge-trimming machine.
  • 7) denotes a portion of a leather upper and 0 a piece of partly trimmed cloth lining underlying said upper.
  • a fulcrum screw or bolt 07 Secured to the table a i by means of. a fulcrum screw or bolt 07 is an arm e which is given a rapid vibratory movement (as indicated by dotted lines in articularly Fig. 1), by means of an arm 9 which carries a stud k that is a blade 71 whose outer or free end is turned down as at 2" and notched as at i to provide a' knife whose cutting edge lies in a plane at a right angle to the plane of the arm e.
  • gage plate k Mounted on the knife blade 2' is a gage plate k which is secured in place, as here shown, by a. clamp screw m which extends through an elongated slot 70, the arrange n ent of the gage plate and blade 2'' being such that the gage may "be adjusted longitudinally on the said plate, within the limits of the slot k.
  • the gage When it is desired to use my described trimmer the gage is first adjusted on the knife blade so that the outer end of the gage is slightly back from the knife edge 5 (see Figs. 3 and 4).
  • the arm 6 is started into action thus causing the knife to be vibrated rapidly and the work to be trimmed is placed'in position on the work table, with the outlining edge of the leather 7) abutting the end of the gage.
  • the vibrating knife 5 which extends slightly underneath the leather upper, engages and trims the said lining, as will be best understood by reference to Fig. 1 of the drawings, the cut edge of the lining being located automatically and accurately by reason of the cooperative relation of the gage with the knife.
  • edge-trimming machines which consists, in combination with a reciprocating arm, of a right-angled knife blade carried "by said arm, and a gage adjustably mounted upon said blade.

Description

L. M. PECK.
EDGE TRIMMING MACHINE. 'APPLICATION FILED AUG-l5, 191a.
" WITNESS- LOTTIE M. PECK, OF BRAINTREE, MASSACHUSETTS.
, EDGE-TRIMMING MACHINE.
neonate.
Specification of Letters Patent. Patented Apr. J15, 19119..
Application filed August 15, 1918. Serial No..250,046.
To all whom it may concern:
Be it: known that I. Lo'r'rrn 1W. PEGK, a a citizen of the United States, residing at Braintree, in the county of Norfolk, in the State-of Massachusetts, have invented a certain new and useful Improvement in Edge- Trimming Machines, of which the following is a specification, reference being had to the accompanying drawings.
The object of this invention is to provide means for rapidly and accurately trimming the linings of shoes and more that portion of such linings'which is to be trimmed into parallel relation to those portions of the uppers where the buttons or studs, as the case may be, are to be located. Tn thus trimming the lining it is-desirable and customary to trim slightly back from the edge of the upper and this has been a particularly awkward and uncertain operation because of the fact that the upper lies on top of and hides the lining from view during the trimming operation. Mypresent improvement provides a novel construction of undercutting knife and gage which automatically locates the cut edge of the lining a given distance back from the edge. of the upper.
In order to explain my invention clearly I have provided the annexed drawings, in which Figure 1 is'a plan view of a machine work table having mounted thereon a cutting tool embodying my present improve ment, and also showing, as in the act of being trimmed a section of lining and superposed leather upper. Fig. 2 is an under side plan of the said improved tool.
.Fig. 3 is an edge view of the work table and of the work mounted and of said tool, and in Fig. 4 I have shown the said tool in perspective.
Referring to these drawings the letter a indicates a portion of the work-supporting table of an edge-trimming machine. 7) denotes a portion of a leather upper and 0 a piece of partly trimmed cloth lining underlying said upper. Secured to the table a i by means of. a fulcrum screw or bolt 07 is an arm e which is given a rapid vibratory movement (as indicated by dotted lines in articularly Fig. 1), by means of an arm 9 which carries a stud k that is a blade 71 whose outer or free end is turned down as at 2" and notched as at i to provide a' knife whose cutting edge lies in a plane at a right angle to the plane of the arm e.
Mounted on the knife blade 2' is a gage plate k which is secured in place, as here shown, by a. clamp screw m which extends through an elongated slot 70, the arrange n ent of the gage plate and blade 2'' being such that the gage may "be adjusted longitudinally on the said plate, within the limits of the slot k.
When it is desired to use my described trimmer the gage is first adjusted on the knife blade so that the outer end of the gage is slightly back from the knife edge 5 (see Figs. 3 and 4). The arm 6 is started into action thus causing the knife to be vibrated rapidly and the work to be trimmed is placed'in position on the work table, with the outlining edge of the leather 7) abutting the end of the gage. As the combined upper and lining c are fed forward, the vibrating knife 5 which extends slightly underneath the leather upper, engages and trims the said lining, as will be best understood by reference to Fig. 1 of the drawings, the cut edge of the lining being located automatically and accurately by reason of the cooperative relation of the gage with the knife.
Having thus described my invention, ll claim as new and wish to secure by Letters Patent 1. The improvement in edge-trimming machineswhich consists, in combination with a reciprocating arm, of a right-angled knife bladecarried by said arm, and a gage mounted upon said blade.
2. The improvement in edge-trimming machineswhich consists, in combination with a reciprocating arm, of a right-angled knife blade carried "by said arm, and a gage adjustably mounted upon said blade.
LOTTIE M. PEOK.
extends up through an openmg in the table a into a slot 6 in the arm '6. Secured to the other end of the arm e
US25004618A 1918-08-15 1918-08-15 Edge-trimming machine. Expired - Lifetime US1300642A (en)

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US25004618A US1300642A (en) 1918-08-15 1918-08-15 Edge-trimming machine.

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