US1123213A - Rand-guide for rand-attaching machines. - Google Patents

Description

A. A. ASTON.

RAED GUIDE FOBv BAND ATTACHING MACHINES.

APPLICATION FILED APR. 7,1914.

1 .123 21 Patented Jan.5,1915.

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RAND GUIDE FOR RAND ATTAOHING MACHINES.

APPLICATION FILED APR. 7. 1914.

1,123,213. Patented Jan.5,1915.

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ALBERT AMOS ASTON,

0F LEICESTER, ENGLAND, ASSIG-NOR 'I'O UNITED SHOE MACHINERY COMPANY, OF PATEBSON, NEW JERSEY,*A.CORBQRATION OF:

NEW JERSEY.

RAND-GUIDE FOR 'RAND-AT'PACHING MAGHINES Specification of Letters Patent.

Patented Jan, 5,1915.

Application filed April 7, 1914. Serial No. 830,172.

To all whom it may concern Be it known that I, ALBERT A. AsToN, a subject of the King of England, residing at Leicester, Leicestershire, England, have invented certain Improvements in Band- Guides for Rand-Attaching Machines, of whichthe following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to machines for attaching rands, welts, or similar strips of material to stock in the manufacture of bootsand shoes.

The invention is herein shown and described as applied to a rand or welt tacking machine by which a rand or welt taken from a strip is secured around the edge of a heel or sole, but it will be understood that the invention is not restricted to the particular construction and use herein illustrated.

The invention relates particularly to means for feeding the strip material to the point of operation, and an object of the invention is to provide means for guiding the strip in a more certain and effective manner and at the same timeto facilitate the operation of placing the strip in proper attaching relation to the part of the boot or shoe to which it is to be attached.

n important feature of the invention is the construction and arrangement of the guiding mechanism so that the strip can be placed more readily therein than has hitherto been possible while at the same time it will be kept in its proper position in relation to the stock irrespective of variation in the width of the strip.

Another important feature of the invention is the connection of the strip guiding and controlling means with the starting and stopping mechanism whereby the machine may synchronously be stopped when the controlling means is moved into inoperative position and whereby preferably the work supporting table will also be lowered when said controlling means is rendered inoperative.

A preferred embodiment of the invention will now be described with the aid of the accompanying drawings in which the invention is shown as incorporated in a machine for inserting taper nails or tacks of the type shown in United States Letters Patent to JosephGouldb'ourn and Harry Hallam, No. 1,081,953, granted December 23, 19 13.

Inthe drawings, Fi gure 1 is a front elevation of so much of the machine as is essential to illustrate theinvention; Fig. 2 is an elevation at right angles to the elevation shown in Fig. 1, part of the rand or welt guide being. shown in section. i

The two figures show the parts in different operative positions. The mechanism for forming and inserting tacks is substantially that shown in United States Letters Patent No. 490,625, grantedJ anua ry 2% 1893, to L. Goddu. A specificdescription ofgth is mechanism does not appear to be essential to an understanding of the present invention;

In the machine to which the invention is described as applied, taper tacks are cut successively from a continuous tack strip and driven into a strip of leather or like material 2 to secure the same to a heel, sole or other part of a shoe supported upon a work table 4 which, as is usual in this type of machine, is adapted to be lowered to receive the work and raised to bring the work into operative position, see full and dotted line positions of table in Fig. 2. In the following description the strip 2 will be referred to as a rand strip, but it. will be understood that this is merely for convenience and that the invention applies equally to either a rand, welt or similar strip of material. i

As it is requisite in attaching rands to heels that the rand strip shall have its outer edge in line with or flush with the edge of the heel to which it is to be attached, a guide 6 for the strip 2 has been provided in machines of this type, the guide leading the strip into proper position above or upon the heel for attachment thereto by a tack severed from, the tack strip, said tack being driven by a driver 8. According to the in venti on, the opening in the guide 6 is shaped to correspond with the transverse section of the rand strip 2, that is, it is wedge-shaped as shown in Fig. 2 with a vertical wall 10 that corresponds in position with, that is, is in line with, the edge of the heel when the heel is supported on the table, the vertical wall thus forming an edge guiding surface for the rand. .The lower surface of the guide is preferably inclined downward variation in width, a guide finger 12 is provided which bears yieldingly against the front or narrow edge of the strip and forces it with a light pressure against the guiding surface 10. Preferably this result is obtained as shown by securing the fingerl2 to or forming it .as a part of a slide rod 14 that is mounted to slide in bearings 16 and 18 in a bracket 20 attached to the machine frame 22. The slide rod 14 is provided 'with a collar 24 which may be adjustable thereon,-the collar being so disposed that a spring 26 surrounding the rod 14 and bearing at one end on the collar 24 and at the other end against the bearing 18 tends to move the finger 12 toward the edge guiding surface 10 and thus to causeit to hold the rand strip 2 yieldingly in contact with said surface.

To allow the rand strip to be inserted in the opening in the rand guide 6 readily and without difliculty, means is provided for moving the guide finger 12 in opposition to its spring 26 to a position removed from the edge guidingsurface 10. Preferably this means is so arranged that the finger 12 will be brought into this position when the machine is stopped, the operation of starting the machine first permitting the guide finger 12 again to bear yieldingly upon the rand strip. v The illustrated means comprises a bell-crank lever 28, fulcrumed at 30 on the bracket 20 and having an upwardly extending arm 32, the end of which is in the vicinity of the'slide rod 14. The horizontal or approximately horizontal arm of the bellcrank lever is coupled to a rod 34 that is in operative connection with the treadle 35 by which the starting of the machine is effected. The disposition of the said parts is such that when the treadle is released, the vertical arm 32- of the bell crank will bear yieldingly or otherwise against the end of the slide rod 14 and hold the spring 26 on the slide rod compressed and the guide finger 12 away from the guiding surface 10. The preliminary movements of the treadle in starting the machine will turn the bell crank lever 28 and remove the vertical arm 32 from the slide rod 14, thus allowing the guide finger 12 .to be brought by the spring 26 into contact with the rand strip before the clutch is tripped by which the machine is put into operation.

Preferably the rod 34 is not directly connected with the treadle but is connected therewith through such parts that when the guide finger is removed from out of contact with the welt strip, as above described, the work table 4 will be lowered for the removal of the completed work and the substitution therefor of a new heel or sole or the like. For this purpose the rod 34 is coupled at'its lower end to an arm 36 fastened to a rockshaft 38 received in a bearing in a depending portion 40 of the bracket 20. The rockshaft 38 also carries another arm 42 which is connected with the treadle bymeans of a rod 44, a spring 46 carried upon a rod 48 tending to maintain the treadle raised. The rock-shaft 38 also has secured to it a cam 50 which bears against a roll 52 carried by the stem 54 of the work table 4, the said stem being surrounded by a spring 56 which tends to maintain the table lowered. The cam is shaped as shown so. that when the treadle is in inoperative position with the machine at rest, the roll 52 will rest upon the lower part of the cam 50 and the table will therefore be at its lowest level; At

I the same time the guide fingerl2-will be retracted through the connections already described. After the work has been placed upon the table and the rand strip inserted in the guide, the operation of the treadle will raise the table 4 and allow the spring 26 to press the finger'12 against the edge of the rand by reasonof the removal of the arm 32 from the end of the slide rod 14 and the machine will be started by connections more fully described in the Letters Patent to Gouldbourn and Hallam above identified.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is 1. In a machine of the class described, a work support, a rand guide having a lateral guiding wall, means for pressing the rand yieldingly against said lateral wall, means for raising the work support as the machine is started, and connections between said work support raising means and said pressing means whereby the pressing means is moved out of operative relation to the rand and the work support is lowered as the machine is stopped,

2. In a machine of the class described, a work support movable between an operative position and an inoperative position, a rand guide arranged to guide a rand into position to be attached to work supported upon said work support, said guide comprising a lateral guiding wall, means for yieldingly pressing the rand against said guiding wall, starting and stopping mechanism comprising a treadle, connections between said treadle and said work support whereby said work support is raised as the machine is started and is lowered as the machine is stopped, and connectionsbetween said pressing means and said treadle whereby said pressing means is moved out of operative relation to the rand as the Work support is lowered and the machine is stopped and is moved into operative relation as the work support is raised and the machine is started.

3. A machine of the class described having, in combination, a rand guide having a lateral guiding wall, means for pressing the rand yieldingly against said lateral wall, said means comprising a finger adapted to engage the free edge of the rand, a slide upon which said finger is carried and a spring acting to move said slide in a direction to carry said finger toward said wall,

Copies of this patent may be obtained for five cents each, by addressing the starting and stopping means, and means associated with said starting and stopping means for moving said finger out of engagement with said rand as the machine stops and for permitting said finger to move again into engagement with said rand as the machine starts.

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

ALBERT AMOS ASTON.

Witnesses:

FREDERICK WILLIAM WORTH, LEONARD WARWICK.

Commissioner of Patents,

Washington, D. 0."

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