US1100468A - Machine for inserting fastenings. - Google Patents

Description

W. R. BARCLAY.

MAUHINE FOR INSERTING FASTENING-S.

APPLICATION FILED SEPT. s, 1909.

Patehted June 16,1914.

2 SHEETS-SHEET 1.

W. R. BARCLAY.

MAGHINE FOR INSERTING FASTBNINGS.

APPLIGATION FILED SEPT. 8, 1909.

1,100,468, Patented June 16,1914,

2 SHEETS-SHEET 2.

cowuu mum CO..WASHINGTON. n. c.

UNITED STATES PATENT OFFICE.

WILLIAM RODERICK BARCLAY, OF LEICESTER, ENGLAND, ASSIGNOR T0 UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR INSERTING FASTENINGS.

To all whom it may concern:

Be it known that I, WILLIAM R. BARCLAY, a citizen of the United States, residing at Leicester, Leicestershire, England, have invented certain Improvements in Machines for Tnserting Fastenings, of which the 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 inserting fastenings and particularly to machines for inserting previously formed fastenings, and consists in certain improvements in such machines whereby they are rendered more efficient and reliable in opera tion and less liable to damage than has been the case hitherto.

The improvements according to this invention further provide that the work shall be dealt with in a more certain manner than hitherto by lessening the probabilities of accidental damage to the work by incorrect operation of certain of the operative parts of the machine.

In its illustrated preferred embodiment the invention is shown as applied to a machine in which there is an automatically rotated nail turret. The nails are loaded by hand or otherwise into pockets arranged around the turret, and the latter is rotated step by step to bring the pockets one by one into register with an opening in a nail re t-aining plate fixed beneath the turret. From the opening in the nail retaining plate the nails pass one at a time into a nail receiving throat whence they are driven by a reciprocating nail driver intothe work.

A difliculty found in machines of this type as hitherto constructed is that the nails sometimes become lodged partly in and partly out of the rotating turret whereby breakage of the machine may be caused upon subsequent rotation of the turret by the nails jamming between the turret and the opening in the nail retaining plate. To overcome this difficulty the invention contemplates the provision in a machine, in which two members are relatively movable to deliver nails from a pocket or the like in one member to a nail receiving opening in the other mem- Specification of Letters Patent.

Application filed. September 8, 1909.

Patented June 16, 1914.

Serial No. 516,707.

ber, of a yielding wall or yieldingly mounted part forming a part of the wall of such pocket or opening, which part, by yielding, will prevent damage to the machine in the event of a nail amming across the adjacent ends of the opening and pocket during the relative movement of the members. In a construction wherein a nail conducting tube extends from the nail retaining plate or like member to the part of the machine where the nails are to be delivered, the portion of the tube adjacent to the retaining plate may likewise be provided with a yielding side to prevent damage if the jammed nail happens toproject into the tube.

A preferred embodiment of the present invention will now be described with the aid of the accompanying drawings, in which,-

Figure 1 is an elevation of a portion of a machine designed especially to insert nails in heels, having incorporated therein the invention of this application; Fig. 2 is a View similar to Fig. 1 but showing the parts in a different operative position; Fig. 3 is a plan of the nail turret forming part of the mechanism shown in Figs. 1 and 2, parts being cut away; Fig. 4 is a section on the line 4-4 of Fig. 1 drawn to an enlarged scale.

The principal operative parts of the machine in which the invention is embodied may be substantially those disclosed in United States Letters Patent to Robinson and Watt, No. 447,358, granted March 3, 1891. The machine as modified to drive previously formed fastenings is provided with a turret 2 having nail receiving pockets 4. The turret is arranged for rotation upon a stud or pin 6 carried by a bracket or brackets 8 projecting from the frame of the machine, and a step-by-step movement is imparted to the turret through ratchet teeth 10 formed upon or secured to the upper face thereof. The ratchet teeth are engaged by a suitable pawl or other driver, not herein shown.

Beneath the turret 2 a retaining plate 12 is provided, said plate being secured to the bracket 8 in such manner as to be prevented from partaking of the rotary movement of the turret. The retaining plate 12 has an opening 14 through it in such a position that the pockets 4 which are located near the edgeof the turret and extend through the same can be brought successively into register with said opening as the turret receives its step-by step movement of rotation.

The nail receiving throat 16 is arranged at one side of the turret 2 and at a lower level, the throat, as is usual in this type of machine, having a vertical movement imparted to it so that it can be raised for insertion and removal of thework 18,v as shown in Fig. 2 or brought down into contact therewith, as shown in Fig. 1, and so that it can accommodate itself to work of varying thicknesses. When the throat is lowered at a height above the work support 20 corresponding to the thickness of the work being operated upon. A driver 22 is arranged to be reciprocated vertically within the nail throat 16 so as to drive the nail contained therein into the work with its head flush with the surface thereof.

It will be obvious that the diiferent vertical positions the throat occupies by reason of the variations in the thickness of the work will vary the distance between the opening 24 in the throat and the opening 14 in the retaining plate, and according to this invention these two openings are connected by a telescopic guide tube 26 that will elongate and shorten and so maintain a continuous straight-line guideway between the turret and throat, notwithstanding the said variation in the distance between them.

In the illustrated embodiment of the invention the telescopic connection comprises two tubes 28 and 30-, the former being pivoted at 32 to a lug on the walls of the throat, the latter being pivoted at 34 to a lug on the retaining plate 12. Thus the variation of the distance between the throat and the plate will be compensated for by the tube 28 sliding within the tube 30, the two tubes turning on their pivots 32 and 34. Tube 28 is preferably made with the upper end of its passage flared or beveled so as to prevent nails from lodging against its upper end in their descent. Obviously instead of the telescopic connection being composed of only two members it could be formed of a greater number of tubes, in which case it would be necessary to provide stops or other suitable means to prevent any of the tubes from being overdrawn in the downward movement of the throat.

As shown best in Fig. 3, the opening or orifice 14 through the nail retaining plate 12 is provided with a yielding device. This yielding device comprises a separate and movable part 36 of the walls of the orifice.

Part 36 is mounted upon, or formed as a part of, a blade spring 38 secured to the retaining plate 12 by screws 40. This yielding device provides that in the event of a nail being lodged partly in the pocket 4 and partly in the orifice 14, breakage will not occur if the turret 2 should be rotated, the yielding part 36 permitting the nail to pass out of the orifice 14 along the slab side of the retaining plate 12. A similar yielding device may be provided upon the member 30 of the telescopic guide tube. This is prefer- T ably arranged by cutting away at one side a Y part of the tube 30 at its upper end, as at 42, see Figs. 1 and 4, and securing a split ring 44 to the tube 30 by a screw 46 in such manner that the ring extends around the tube. into contact with the work it will be stopped The split ring is so arranged that the split 48 will be opposite the cut-away portion 42 and the split and the cutaway part will be I located at that side of the tube toward which a jammed nail will travel in the rotation of the turret 2. By this arrangement, when a jammed nail comes in contact with the split ring 44 it will pass the split 48 therein without damaging the machine. Obviously a corresponding part 50 would have to be cutaway from the tube 28 so as to aiford an unobstructed passage for the jammed nail when the guide tube 26 should be contracted by reason of work of considerable thickness being dealt with. Moreover, the tubes 28 and 30 should be so dimensioned and arranged that the opening in the tube will be fprevented from becoming uncovered when E the telescopic guide tube is at its maximum '5 extension. When the guide tube of more than two members it is obvious that is composed provision would have to be made to prevent any one of the members from obstructing 'the cut-away portion. This could be done by the provision of a suitable stop to prevent the adjacent tube closing the cut-away part 42 or by providing each of the tubes with a cut-away part that would be brought into register with the part 42 in the tube 30 when the guideway is in its contracted position.

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, nail delivering means comprising a rotating turret provided with nail pockets and a stationary nail retaining plate beneath said turret provided with a nail delivering opening having a laterally yielding wall arranged to conduct a misplaced nail to a point outside the plate.

2. In a machine of the class described, the combination with nail delivering means comprising a rotating turret, a stationary nail retaining plate beneath said turret provided with a delivery opening having a laterally name to this specification in the presence of yielding Wall, and a nail receiving throat, of two subscribing Witnesses. a nail conducting tube for conducting the nails from the delivery openin to the WILLIAM RODERICK BARCLAY 5 throat, said tube being provided adjacent to Witnesses:

said opening with a laterally yielding wall. ARTHUR ERNEST JERRAM, In testimony whereof I have signed my ELEANOR PYWELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0."

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