US1569914A

US1569914A - Pinning and nailing machine

Info

Publication number: US1569914A
Application number: US5664A
Authority: US
Inventors: Curtin Frank; Curtin Henry
Original assignee: CURTIN HERBERT CO Inc
Current assignee: CURTIN HERBERT CO Inc
Priority date: 1925-01-29
Filing date: 1925-01-29
Publication date: 1926-01-19
Anticipated expiration: 1943-01-19

Description

am. i9,192e. 1,569,914 F. CURTIN-EI'AL PINNING AND NAILING MACHINE Original Filed Apr l 1923 2 Shuts-Shoot 1 INi ENTORS.

ATTORNEY.

Patented Jan. 19, 1926.

. UNITED STATES PATENT OFFICE.

FRANK CURTIN AND HENRY GURTIN, OF GLOVERSVILLE, NEW YORK, ASSIGNORS TO GUBTIN-HERBERT 00. INC., 013 GLOVSERSViLLE, NEW YORK, A CORPORATION 01f NEW YORK.

Refiled for abandoned application Serial No. 635,427, filed April 30, 1923. This application filedianuary 29, 1925. Serial No. 5,664.

To all whom it may concern:

Be it known that we, FRANK CURTIN and HENRY C R'rIN, citizens of the United States, residing at Gloversville, in the county of Fulton and State of New York, have invented certain new and useful Improvements in Pinning and Nailing Machines, of which the following is a specification.

Our invention relates to pinning and nailing machines, and is particularly applicable to machines which are designed to insert the pins or nails which are used to rivet in place the metal frames of pocket books, hand bags, and Satchels; or other articles in which metal parts are to be riveted to leather or fabric, the object of this invention being to produce a machine forthe purpose above described, which will be more positive in action than those now in general use.

Our improvements lie particularly in the method of removing the pins or nails, one at a time, from the feeding tube which conveys them, heads up, from the usual hopper; in the. method of inverting them so that the heads thereof will be down; and in the method of conveying them, so inverted, to a position where they will be acted upon by a plunger which is adapted to force them upwards and through the parts to be pinned or nailed.

We accomplish our objects by means of an improved pinning and nailing machine, constructed substantially as hereinafter described, and illustrated in the accompanying drawings, in which:

Fig. l is a plan view of a pinning and nailing machine embodying our improvements.

Fig. 2 is a side elevation of same, parts broken away.

Fig. 3 is an enlarged side elevation, partly in section, of that portion of the machine wherein our invention particularly lies.

The same reference characters refer to the same parts throughout the several views.

Referring to the drawings, which are in a certain sense illustrative only, it will be seen that our improved pinning and nailing machine comprises a table 2, which may be supported in any suitable manner as by the legs or standards 3, and that above the table is mounted a rotating hopper 4., adapted to be driven from the shaft 5, and to load pins and nails deposited therein into a gravity feed tube 6.

Mounted beneath the rear portion of the table 2, in suitable bearings 7, is a cam shaft 5, having mounted thereon a series of cams 8, 9, 10, and 11. One end of the shaft 5, is preferably-provided with a hand wheel 12, and on this shaft is loosely mounted a pulley 13, adapted to be connect ed to a source of power (not shown). A clutch 14, provides means for causing the rotation of the pulley 18, to be communicated to the shaft 5, so as to drive said shaft, and anymechanisms connected there with.

The back of the disc 17, is provided with suitable ratchet teeth 20, adapted to be engaged by a pawl 21, mounted on a pivoted lever 22, so that a reciprocating motion imparted to said lever will cause the disc 17, to be rotated to bring successive grooves 18, into alignment with the discharge opening in the end of the feed tube 6. A second pawl, 23, prevents reverse motion of the disc 17, and a shield 24, prevents the escape of a pin or nail fed into a groove in said disc until said nail reaches a point diametrically opposite that at which it entered said groove; when it reaches that point it is inverted, and is allowed to slide out of said groove and enter, head down, a

' funnel-shaped opening 25, formed through the plate 26, mounted on the table 2.

To impart a reciprocating motion to the lever 22, so as to cause rotation of the disc 17, we pivot atl l, a double ended lever 45, the front end of which is slotted and en.- gages with a spherical portion 46, formed on the lever 22, the rear end thereof being normally forced downward by springs 47. A limiting stop $8, is preferably provided.

The reverse niotion ol. the lever l5, is -aused by a side of the lever 4.9, (also hinged at TH) coming into contact with a projection 50. on the lever l5. motion being imparted to said lever by a pin 51. in the slide bar 30. Lh thus arranged. the motion oi the slide bar ll will normally control the motion of the lever l5. and the parts operated thereh or (lllll'lt'tltfl therewith.

The ratchet teeth 20. on the disc ll. and the pawl 21. on the lever being adapted to rotate the di c. on the upward motion ot the lever in case an imperfect nail fed into a. groove in the disc 1?. as the tension ol the spring a7, is the only power tending to turn said disc, no destructive llorce will be applied. The only result will be stoppage of the rotation of the disc 17. until the imperfect nail is removed.

.llotatably n'iounted on the table 2, and beneath the plate 26. is a disc 27. provided with a series of equally spaced holes 28, said holes so .--'paced trorn the center oil the disc as to come successively into alignment with the discharge end of the opening: 25, when the disc 27. is rotated. "lhe periphery of the disc 37. has notches formed therein adapted to be engaged by a. pawl 25), mounted on a reciprocating slide bar 30, so that the reci 'irocatimi ol, said bar will cause the rotation of said disc. The slide bar 30,

actuated by a cam 8, on the shaft Mounted heneath the tront edge of the table 2. is a sndeway i1, in which is a crosshead 32. in the upper end ol" which mount ed a plunger 33. the upper end thereof be ing adapted to pass through the openii'igs in the disc 27, and an opening; ll, in the plate :36, and to 'l'orce a pin or nail which may be located therein strongly up "ard to the l mit of its travel. The cross head 31?. is actuated by a double ended lever 54-, the required motion being impz'zrted to the rear end thereof by a cum 9. mounted on the shaft ilining operated gripping means adapted to hold a nail or pin in the position in the opening ill. in which it is left by the placing stroke oi the plunger 33, (as il lustrated in l igs. 2 and 3) are provided. The object being to hold the nail so that. a pie-reed inetal part may be easily threaded on the end of the nail before the presser loot descends and the nail is driven upward to a seat.

To resist the upward thrust of the nail. so as to cause it to pierce the material to be nailed and be firmly seated. we arrange a presser foot 35. the contact point 36, which is hollow (as shown in Fig. The stem 37. of the presser foot extends below the table and connects with one end of, and is actuated by, the double ended lever 38,

the required motion heing imparted to the rear end thereof by a cam in. mounted on the shaft 5.

in order to :uwonnoo: .odillereul llllllincsses ol worlt. the downward motion oi th driving and ol the lever on, is eouuuuui ed to the presser 'loot through a rprhu," l luitahlc menu are provided For adjust" the position at the rontart point Il ol' the presser Foot 35.

in order to assure proper alignment oi' the holes Ed in the disc il'i'. at the time the plunger 3 5. u; to he Forced upward there through. we n'ovide a spring): actuated loching mechanism ll). ll e pointed locking: pin ll, pass through a hole in the plate 12. and entering;- one ol the holes Qtl. in the disc Eli. will 'lorce said disc into and hold it in, proper pos on to bring one of the holes into alipiunent "w th the plunger il -l. The locl: is released when it is desired to rotate the disc 27. h v tori-inn the much anism upn'ard against the teir-iou ol' the spring 4:2. the upward motion being impart-- ed thereto lrv the double ended lere' l l. the rear end 'llu-rcoi' being: actualwl i a can) ll. on the shalt 53.

It is to he understood that pawls are to be provided with suitable springs to insure proper Contact. altluiugrh thev may not be illustrated in the drawings.

We will now describe the manner in which our improved niacl'line operates.

A quantity ol pins or nails having been placed in the hopper land power applied to drive the shalt the pins or nails will be loaded into the 'l'eed tulle ll. in the uiurl manner. and will slide down said tube. hangiup by their heads. until. they rea -h the discharge end thereirl. (Any type of hopper which will. pro 'lcrlv load the nail." or pins into the lead tulle may he uliliaodl.

ll is of course obvious that the In hlnr will not lull l'unction until u ieul number ol' pins or nails have been led into the mechanism to (establish a condition uch as is illustrated in Fig. ll. when there is a nail clutched by the spring operateil gripping means located in opening: l in lluplate 2a: a nail in each opening ill. in the. disc 27. in the rear of the one in which the plunger oo. is shown and ahead of the oinui'idcr the opening and a nail in each groove 18. in the disc lT, ahead oi the one into which a nail has just. entered and hebind the groove out of which one is just. dropping.

The parts ol the mechanism are so timed that at the end ot each cycle the (Ol'lllll'lllll will he as above illustrated. priin'iding always that there is no failure ot the nail supply. and no blocking ol the disc 17. lrv reason of imperfect nails.

A cycle of the machine may be divided roughly into four sections. 'ith the maltlll lll chine in the condition just described and as illustrated in Fig. 3, a piece of work to be pinned being placed over the point of the nail or pin 55, and the clutch thrown in, the first section of the cycle will cause the presser foot 35, to be lowered so as to press against the work, the plunger 33, to be forced upward and to seat the nail in the work. The second section of the cycle will cause the presser foot to be lifted, and the plunger to be withdrawn to its lowest limit. The third section of the cycle will release the lock, and cause the two

discs

17,

and 27, to be rotated forward one step,

which permits another nail. to enter a groove in the disc 17, and a nail (inverted) to drop out of the diametrically opposite groove into the funnel-shaped opening 25. At the same time an empty hole in the disc 27, is presented under the opening 25, and a filled one (one with a nail therein) over the plunger The fourth section of the cycle first permits the locking mechanism to locate and lock the disc 27, then forced upward the plunger 33, until it reaches the position illustrated in Fig. 3, when the cycle is completed.

We claim 1. In a machine of the class described, a table; a hopper supported above said table; an inclined feed tube leading from said hopper; a disc with a series of spaced radial grooves in the face thereof, rotatively mounted adjacent the discharge end of said tube; means for causing step rotation of said disc; a guard to prevent egress of a nail from said grooves during a major portion of their downward travel; a second disc rotatively mounted below said grooved disc and having a series of circumferentially spaced holes therethrough; means for causing step rotation of said second disc; means for locking said second disc; means for releasing said locking means at intervals; a plunger slidably mounted beneath said second disc and in line with one of the holes therethrough when said disc is locked; a work supporting member with an opening therethrough to pass said plunger; yielding gripping means mounted adjacent said opening and adapted to grip a nail placed therein; a presser foot with an opening therein; means for raising and lowering said presser foot; and means for imparting reciprocatmg motion to said plunger.

2. In a device of the class described, a

table; a hopper supported above said table; an inclined feed tube leading from said hopper; a disc with a series of s aced radial grooves in the face thereo rotatively mounted adjacent the discharge end of said tube; means for causing periodic step rotation of said disc; a guard adapted to prevent egress of nails placed in said grooves during a major portion of their downward travel; a second disc rotatively mounted be low said grooved disc and having a series of circumferentially spaced holes therethrough; means for causing periodic step rotation of said second disc; means for locking said second disc; means for periodically releasing said locking means; a plunger mounted beneath said second disc and in line with one of the holes therethrough when said disc is locked; a work supporting member with an opening therethrough to pass said plunger; yielding gripping means mounted adjacent said opening and adapted to grip a nail placed therein; a presser foot with an opening therein means for periodically ralsmg and lowering said presser foot; and means for causing adapted to receive nails discharged, head down, from said grooved disc; means for causing step rotation of said second disc; and means for forcing nails out of the holes in said second disc and into and through the work. i

4. 111a machine of the class described: a

table; a nail inserting plunger; a disc having a series of radial groovesformed in the face thereof, rotatively mounted above said table; means for causing step by step rotation of said grooved disc; means fordelivering nails, head up, to successive grooves as they reach a position in the upper arc of rotation; a second step by step rotating member, with a series of holes therethrough, adapted to receive nails discharged from said grooved disc and deliver them to the nail inserting plunger; and means for preventing the escape of nails from the grooves in said grooved disc until they reach the proper delivery point in the lower are of rotation.

In testimony whereof we have affixed our signatures. j

FRANK CURTIN. HENRY OURTIN.