US958286A - Auxiliary lasting device. - Google Patents

Description

T. G. PLANT.

AUXILIARY LASTING DEVICE.

APPLIOATION FILED SEPT. 20, 1909.

958%86 Patented May 17, 1910.

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AUXILIARY LASTING DEVICE.

APPLICATION FILED SEPT 20, 1909.

Patented May 17, 1910.

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THOMAS G. PLANT, 0F BOSTON, MASSACHUSETTS.

AUXILIARY LASTING DEVICE.

Specification of Letters Patent.

Patented May it, ieio.

Application filed September 20, 1909. Serial No. 518,689.

To all whom it mag comm:

Be it known that I, THOMAS G. PLANT, a citizen of the United States, residing at Boston, in the county .ofSufi'olk and State of Massachusetts, have invented an Improvement in Auxiliary Lasting Devices, of which the following descri tion, inconn'ection with the accompanying awings, is a specification, like numerals on the drawings representing like parts.

This invention relates to lasting machines,

particularly those known asside lasters, and

its object is to provide means for preliminarily stretching the upper over the last so that it may be engaged by the pincers common to machines of this class.

When the shoe is presented to the side laces only a slight distance above the sole us to scant cuttin after assemb ing. 1 It has been usual hereto fore for the operator to stretch the upper in such places with a pair of hand lasting pincers, an operation which requires separate manipulation of the shoe on a support."

This invention aims toprovide means so that when the operator, in the course of the lasting operation, comes to a place where the lasting pincers are unable to reach the upper, he can stretch this place while still retaining the shoe in his grasp in the'proper position to continue lasting.

It is understood that this device admits of eat variation in form without departing i 'i om the spirit of the invention, one form of which is shown in the accompanying draw- 111 s.

%n the drawings :Figure 1 is a side view of a lasting machine, showing the application of the present invention thereto; and Fig. 2 is an enlarged detached view. of the auxiliary pincers.

For convenience in illustration this invention has been shown as attached to a side laster such as is fully shown and described in patent to Thomas H. Seely, No. 945,291, dated Jan. 4, 1910, but its use is not limited to machines of this class. It is equally applicable to any of the many classes of last- 111 machines.

eferring to Fig. 1, 1 is a column having a head 2 carrying a driving pulley 3 mounted on a shaft 4 suitablyconnected to a pair of pincers 5, a full description of which may be had by reference to the above mentioned 'treadle and treadle rod in raised of the upper and shrinkage application. Near the to of the column 1 1s a lug 6 having adjustab y mounted therein a stud 7. Attached to the lower end of this stud 1s a block 8, the outer end of which forms the fixed jaw 9 of a pair of pincers. Pivoted at 10 to the block 8 is a lever 11, one end of which forms the movable jaw to coact with the jaw 9, the other end being connected to a treadle rod 12 o erated by a treadle 13 pivoted on the base oi the column. There is also connected to the lever 11 a sprm 14, the upper end of which is connected hook 15 attached to the stud 7. The spring 14 will tend to hold the lever 11 and its ositions with-the plncer jaws open, as shown in Fi 1.

On the forward end of the block 8 1s a smaller block 16, vertically adjustable on the block 8 by means of a screw 17 and a slot 18. Plvoted at 19 to the-block 16 is a finger 20 adapted to engage the sole of a shoe, as shown in Flg. 2. A spring 21 normally holds the finger 20 in its outward position defined by a suitable stop, as 22, formed as part of the knife blade joint connecting the finger or rest 20 with its support.

When, during the process of lasting, the

upper projects insufliciently to be engaged by the lastlng pincers 5, as is shown on the right of the shoe S Fig. 2, the operator, still holding the shoe in lasting position, will place the upper in position against the fixed jaw 9, then, pressing the treadle 13 to grip the upper, will turn the shoe in the direction of the arrow, Fig. 2. The finger 20, the end of which may be scored or roughened, will contact with the sole of the shoe, forming a fulcrum about which the shoe may turn. As the shoe is thus turned, the fulcrum will yield toward the auxiliary pincers against the spring 21, so that the upper may be stretched and also brought over the sole in a similar manner to the usual hand lasting. Upon release of the treadle 13 the operator can at once continue the lasting operation.

What is claimed is: j

1. In a lasting machine, the combination of a support, relatively fixed and movable pincer jaws mounted on said support for vertical adjustment, means for operating the jaws, a pivotally mounted finger adjustably connected to the fixed jaw, and a spring for maintaining the finger in position with respect tov pivotal movement that its lower to some convenient point, such as a end may act as a fulcrum for the shoe and per 'itting the finger to swing toward the aws as the shoe is turned.

2. In a lastin machine, the combination of a sup orting frame, a pair of pincer jaws carried Ey said frame to engage the 11 per while the shoe is held in the hands of the operator treadle means for closing the pincers on the upper, a pivotally mounted finger to engage the shoe sole and about which the shoe may be turned with respect to the frame supported pincers to draw the upper into positlon, and means permitting said finger to turn on its pivot toward the pincers.

3. In a lasting machine, the combination of a supporting frame, a fixed and a pivotally mounted incer jaw supported bysaid frame, a treadle for turning the pivotally mounted jaw, and a ivotally mounted fulcrum point about WhlCh the shoe is movable with respect to the frame supported pincer jaws to draw the upper about the last.

4. In a lasting machine, the combination of a supporting frame, a fixed jaw, a jaw pivoted to the fixed jaw, a fixed bracket supporting said jaws, means under control of the operator for actuating said jaws to grasp the upper of the shoe, a pivotally mounted fulcrum pin disposed adjacent said jaws to bear u on the shoe and about which the shoe may e turned with respect to the frame supported pincer jaws to, draw the upper about the last, and a spring permitting the fulcrum pin to yield toward the aws.

5. In a lasting machine, the combination of a supporting frame, a pair of pincer jaws, a xed bracket su porting said jaws, means under control of actuating said jaws to grasp the upper of a shoe, a fulcrum pin disposed ad'acent said jaws to bear u on the shoe and a out which the shoe may he turned with respect to the frame supported pincer 'aws to draw the upper about the last, sai fulcrum pin being pivotally mounted, and a spring normally actingto hold the fulcrum pin in operative position and allowing it to yield to permit the pin to swing toward the pincer awsas the shoe is turned.

6. In a lasting machine, the combination of a su porting frame, a fixed pincer jaw mounte thereon, a pivoted pincer jaw, treadle controlled means for operating said jaws, and a ivotally mounted fulcrum pin carried by t e fixed jaw to engage the sole the operator for of a shoe and about which the shoe may be turned in drawing the upper about the last. In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

. THOMAS G. PLANT. Witnesses:

ALFRED H. I'IANDLEY, EDWARD L. STANERY.

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