US1028455A - Rotary tack-pulling tool. - Google Patents

Description

J. B. HADAWAY. v ROTARY TACK PULLING TOOL.

APPLICATION FILED IEB.23, 1910.

1,028,455, Patented June 4, 1912.

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JOHN B. HADAWAY, OF SWAMPSCOTT, MASSAOHUSETTS,. ASSIGNOR TO UNITED SHOE 'MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

ROTARY TACK-PULLING TOOL.

Specification of Letters Patent.

Application filed February 23, .1910. Serial No. 545,286.

To all whom it may concern:

Be it known that I, JOHN B. HADAWAY, a citizen of the United States, residing at Swampscott, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Rotary Tack-Pulling Tools; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to tack pulling machines in which the tacks are acted upon and extracted by one or more tack pulling blades arranged at the periphery of a rotary tack pulling tool or wheel.

In lasting a welt shoe 2. number of lasting tacks are driven along the sides of the shoe to hold the upper in place upon the last, and a wire is usually passed along the toe and secured at each end by an anchor tack. After the shoe upper has set, the side tacks are removed and a few stay tacks are driven to hold the upper in position on the last during the sewing operation, the anchor tacks and toe wire remaining on the shoe. After the inseam has been sown it is necessary to remove the stay and anchor tacks preparatory to performing the subsequent operations upon the shoe. The heads of these tacks are often flush with or below the inner edge of the welt, so that it is difficult to remove them without injury .to the inseam,

The primary object of the present invention is to provide a tack pulling tool which may be utilized to pull the anchor and stay tacks from the shoe, and which will operate to pull such tacks in an efiicient andreliable manner without danger of digging into the upper or welt in such manner as to injure or weaken the inseam. I c

To this end one feature of the invention contemplates the provision in a machine for pulling tacks, of a rotary tool provided with guard flanges which project beyond the working edge of the tack pulling blade or blades so as to protect the inseam from injury ing edge of the blade without bringing the upper or inseam into the path of the workwhen the tacks are presented in position to be engaged and extracted by the v ing edges of the blades, since this path lies.

within the peripheries of the guard flanges. The tack pulling blades will therefore en- .gage and'extract any tacks, the heads of which may project slightly above the edge of the welt, without danger of injury to the inseam; In case the head of the tack is flush with or below the inner edge of the welt, then the head of the tack may be brought into the path of the tack pulling blades by pressing the work against the guards with suificient force to cause the inseam to spring inward between the guard flanges, and thus the tack may be extracted with little danger of digging into the welt and upper sufficiently to injure the inseam.

In the preferred construction of the invention, danger of injury to the inseam in pulling tacks, the heads of which are below the inner edge of the welt, is further reduced or eliminated by providing a guard flange intermediate the side flanges, the periphery of which lies slightly within the path of travel of the working edge of the tack pulling blade. With this construction the side flanges may be separated so that the operator may readily spring or bend the inseam inward between'the flanges, and at the same time the intermediate flange will limit the extent to which-the tack pulling blades may dig into the welt or upper, and will thus'prevent injury or weakening of the inseam. I V

A further feature of the invention contemplates the provision in a tack pulling machine provided with a rotary tack pullingtool, of an improved construction and arrangement of the tack pulling blades which enables the blades to be readily removed for sharpening, and to be readily adjusted to maintain their working edges in proper relation to the guard flange or flanges.

The invention also includes certain other features of construction and combinations which are hereinafter described and referred to in the claims.

The features of the invention will be readily understood from an inspection of the accompanyingdrawings and the following detailed description of the tack pulling machine illustrated therein.

In the drawings Figure 1 is an elevation of a tack pulling machine provided with a tool embodying the invention in its preferred form; Fig. 2 is a sectional View on line 22, Fig. 1; and Fig. 3 is an elevation of the tack pulling tool showing the manner in which it operates in pulling the tacks.

In the construction shownin the drawings the spindle 1 of the tack pulling machine carries on its outer end a tack pulling tool 2 which is especially adapted for engag- 1n lasted shoe. The spindle also carries a second tack pulling tool which is especially adapted for pulling the stay and anchor tacks, and which embodies the present invention. This tool comprises the guard flanges 3, 4 and 5, and the tack pulling blades 6, which are secured in the hub 7 von which the guard flanges are formed; The tack pulling blades 6, of which there are four in the construction shown, arearranged between the side flanges and the intermediate flange 5 in the manner shown in Figs. 2 and 3. These blades are provided with con- 7 vex working edges which are so arranged with relation to the side flanges 3 and 4 that the peripheries of the side flangesextend somewhat beyond the path of the working edges of the blades. The intermediate flange 5 is somewhat smaller in diameter than the side flanges 3 and 4:, and lies slightly within the path of the working edges of the blades 6.

In utilizing the tool forv extracting stay or anchor tacks from a shoe, the shoe is preferably presented to the tool with the line of tacks extending at right angles to the axis of the wheel, the line of tacks being fed to the wheel by the operator by movement of the shoe in line with the direction of travel of the tool, as indicated in Fig; 3. When the shoe is thus presented to the tool, the side flanges 3 and 4 engage the welt and the upper or insole, and tend to hold the work so that it does not intersect the path of travel of the working edges of the blades. In case a tack is below the inner edge of the welt, or is somewhat embedded in the work, the inseam may be forced up between'the flanges 3 and 4 to bring the tack into the path of the blades. lVhen the work is thus forced inward between the flanges 3 andrA, the flange 5 limits the digging in of the blades 6 so that they cannot dig into the upper or welt sufliciently to injure or weaken the inseam.

In order that the blades 6 may be readily removed for sharpening, and may be readily adjusted radially to maintain their working edges in proper relation to the guard flanges, these blades are adjustably mounted in sockets 8 formed in the hub 7 between the flanges 3, 4 and 5. As shown these sockets consist of cylindrical holes passing through the hub 7 and screw threaded at their inner ends to receive adjusting screws 9. The blades 6 are provided with cylindrical and extracting the sole tacks from a shanks 10 fitting within the sockets 8 and supported at their inner ends upon the screws 9. The shanks of the blades are held from'rotation within the sockets by means of screws 11, the inner ends of which engage flattened surfaces formed on the shanks 10. The outer surfaces of the blades 6 are curved to provide clearance back of the working edges of the blades, and as the blades are ground or worn away they should be adj usted radially outward to maintain the working edges in their proper position with relation to the guard flanges. This may be readily accomplished by'adjustment of the screws 9. By loosening the screws 11 the blades may be readily removed and replaced, for the purpose of sharpening or repairs.

The invention has been described with relation to its application to a tool especially designed for pulling stay and anchor tacks, but it will be understood that the invention is not confined in its application to the pulling of stay or anchor tacks, but may be employed, if desired, in pulling lasting or side tacks. It will also be understood that the features relating to the manner of mounting and adjusting the tack pulling blades may While it is preferred to employ the specific construction and arrangement of parts shown and described, it will be understood that this construction and. arrangement is not essential except so far as may be set forth in the claims, and may be varied and modified without departing therefrom,

Having explained the nature and object of the invention, and specifically described one form of tack pulling tool in which it may be embodied, whatI claim is 1. A rotary tack pulling tool provided with one or more tack pulling blades, and guard flanges projecting beyond their working edges between which the inseam is fed longitudinally, substantially as described.

2. A rotary tack pulling tool provided with tack pulling blades, guard flanges on opposite sides of the blades projecting beyond their working edges between which the prising a tack pulling blade arranged to act on the line of the inseam, a guard along which the inseam is fed longitudinally, arranged to guide the inseam out of the path of the blade while allowing the operator to bring the inseam into the path of the blade, substantially as described.

5. A device for pulling stay tacks comprising a guard between which the inseam is fed longitudinally and a guard arranged to 10 act on the line of the inseam between said guards and a tack puller operating in the line of the inseam between the former guards, substantially as described.

JOHN B. HADAWAY. Witnesses:

N. D. MGPHAIL,

WARREN G. OGDEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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