US896573A - Feeding device for nail-machines. - Google Patents

Description

No. 896,573. PATENTED AUG. .18, 1308. J. S. PYPER.

EEEDING DEVICE FOR NAIL MACHINES.

APPLICATION FILED .TUNE 8,1907.

4 SHEETS-SHEET 1.

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- J. S. PYPER. EEEDING DEVICE EUR NAIL MACHINES. APPLICATION FILED-JUNE 8,1907.

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I. s. PIPER. EEEDING DEVICE EUR NAIL MACHINES.

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fyi/5% A TTOHNEYS No. 896,573. PATENTED AUG. 18, 1908. J. S. PYPER.

PEEDING DEVICE FOR NAIL MACHINES.

APPLICATION FILED JUNE 8,1907.

4 SHEETS-SHEET 4.

ATTORNEYSl UNITED STATES PATENT oEEicE..

JOHN S. IPYPER, OF KEESEVILLEKEW YORK.

FEEDING DEVICE Foe NAIL-MACHINES.

No. 896,573. .l

y l Application filed June 8,

To all whom it may concer/n:

Be it known that I, JonN S. PYPER, a `citi- Zen of the United States, and a resident of Keeseville, in the county of Essex and .State of New York, have invented a new and Tmproved Feeding Device for NailfMachines, of which the following is a full, clear, and exact description.

This invention relates to a feeding device for nail machines, and is intended especially to be used in connection with machines for pointing horseshoe nails.

The object of the invention is to produce a device of this class which will operate effectlvely to present the nails to the pointing mechanism in the proper position.

The invention consists in the construction and combination of parts to be more fully described hereinafter and vparticularly set forth in the claims.y

Reference is to be had to the acconipanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in vall the figures.

Figure 1 is a side elevationof the feeding deviceJ and showing a part of the nail-pointing mechanism, certainvparts being broken away and shown in cross section; Fig. 2 is a lvertical section through the lower portion of a feed wheel which constitutes a part of the feeding device; Fig. 3 is a plan of the feeding device, and showing, also, a portion of the pointingmechanism; Fig. 4 is an end eleva tion of certain rolls which constitute a feature of 'thefeeding device; 5 is a side elevation of the mechanism shown in Fig. A, the rolls being broken away and a portion of the frame being shown in cross section; Fig 6 is a horizontal section taken on the line 6-6 of Fig. 1, but upon an enlarged scale; Figi 7 is a vertical section taken through the machine at the left hand portion of Fig. 6; Fig. 8 is a cross `section taken near the delivery mechanism where the nail is delivered to the point ing mechanism; Fig; 9 isy a cross section through the feed rolls illustrated in Fig., 6, and illustrating especially the selecting device for ejecting nails which have entered the feeding device in the wrong position; Fig. 1() is a vertical cross sectionshowing a modified construction for the mechanism which is adopted when the nails must be introduced tinto the delivery mechanism in a reversed osition; this view is a cross section on the 'ne 10-10 of Fig. 11 looking toward the Specification of Letters Patent.

Patented Aug; i8, 1908.

1907. Serial No. 377,871.

right; and Fig. 11 is ya side elevation of the modified construction of the mechanism for reversing the position of the nails as they pass to the delivery mechanism.

Referring more particularly to the parts,- and especially to Figs. 1 to 3, 1 represents the base for the feeding mechanism. Upon this base suitable pillow blocks v2v are provided, supporting a horizontal shaft 3, which shaft carries rigidly afeed wheel 4. This feed wheel 4 has the form of an open an so that it presents a circumferentia or cylindrical face or rim 5, the interior whereof is provided with a plurality of inclined clips 6 which constitute` buckets, enabling the feed wheel to raise thenails'within the same whenrotated in the direction of the arrow, aSl indicated in Fig. 2. At the open side of the feed wheel 4 which is disposed away from the pillow blocks 2, a feed pan 7 isprovided which is 'inclined as shown, so that .nails which fall upon it will slide down .into the feed wheel, aswill be readily understpod. This feed pan 7 is disposed below a transverse cross bar 8 to which there is attached a frame plate 9 which extends longitudinally with respect to the axis of the shaft 3. This frame plate 9 is slightly depressed toward its outerend; that is, toward the end which is i remote from the feed n' heel 4. At the end of other and at their lower ends are rotatably supported inpillow` blocks 12. Intermediate lilow blocks 13 are provided; the pillow bocks 12 and 13 are provided with sleeves 14 and 15 respectively, which' are cut away on their inner sides as shown in Fig. 8 sogas to form a continuous uninterrupted open s ace betweenv the rolls, as indicated very cearlyin Fig. 6. Near the pillow blocks 13,y uprights or standards 16 are provided, andthe up er portions of these uprights 16 support earings 17 for auxiliary feed rolls v18. These bearings 17 comprise sleeves 19 which are similar to the sleeves -14 and 15, being cut away on their adjacent faces so that a continuous open space is formed between the rolls 18. Like the rolls 1.1, the y v cent faces of the rolls construction of t supported in the housing 10. vThese rolls are adjustable vertically, their bearin sv 2() being attached to the inner faces of the ousing l10 by means of slots 22, as illustrated. The sleeves 19 are supported upon pivots 23 at the bearings 17 soy as to permit of the adjustment described.

The ends of the rolls11 and 18 projectbeyond the housing 10 on the side adjacent to the feed Wheel 4, and are provided with rigid pinions 24 which mesh together as shown, so that the rolls 18 will turn in opposite directions, and so that the rolls 11 will turn in opposite directions.v to be driven continuously by means of gear wheels 25 which mesh with one of the pinions 24, and these gear Wheels 25 have rigid pulleys 26 which are adapted to be driven continuously by ro es 27, as shown mostclearly in Fig. 4. t should be understood that when the `machine is in operation, the pulleys 26 are rotated in the direction of the arrows indicated in Fig. 4, so that the adja- 18 and 11 move upwardly. Supported on the upper ortion of the housing 10 I provide a feed c ute 28, the receiving end of which' rojects into the interior of the feed wheelp 4 so as to catch the nails which are brought up by the buckets 6. Thisfeed chute tap tremity which is disposed just over the feed rolls 18, as shown most clearly-in Figs. 1 and 3.

At'the lower end of the main rolls 11 I provide a delivery device 29, and this device comprises a housing 30'which is mounted upon the `frame late 9 as indicated. The liis housing is most clearly illustrated iii Figs. 6 and 8 it presents a vertically disposed guide channel 31 in its face which lies adjacentto the ends of therolls, and this channel 31 is centrally in alinement with the space between the rolls. 0n the sidespf the housing 30 presser arms 32 are pivotally mounted a't 33, being dis osed in a vertical position as indicated in ig. 8; at their upper ends they carry presser rollers 34 which are disposed opposite 'to each other as shown.l Opposite these rollers the side walls ofthe channel 31 arey cut awa to form openings 35 through which the ro ers the interior of the channel. he presser arms 32 are constrained toward each other by a helical spring 36 which is attached to pins 37 projectn from the sides of the arms, as indicated in 6. The rollers 34 are normally held in axial alinement with the rolls 11. They may be nicely adjusted by means of set screws 38 which are' mounted in them and the ends of which rest against the outer .sides of the walls of the channel 31, as shown in 8.'

'In the upper portion of the housing 30 a plunger 39 is guided vertically. The lower roject into bolts 21 passing through The rolls are adapted ers toward its lower eX-" portion of this plunger is of rectangular cross section so as to fit the channel 31, but the upper portion is formed into a round stem 40 a out which there is disposed a helical spring 41 which tends to hold the plunger in an u wardly withdrawn position, as will be readi y understood. In Fig. 8 the plunger-is shown in a slightly depressed position, at which time it forces the rollers 34 a art in a manner which will be described more fiilly hereinafter. It should now be understood that the channel 31 presents an open side to the feed rolls 11 so that nails passing along between the rolls, may advance one at a time into the channel. In order to prevent the nails from passing into the channel at the wrong time,

provide a time gate 42, which consists of a plate having a curved forward edge 43, and this plate slides in a horizontal direction in a suitable guide 44.

The pointing mechanism 45 comprises a ring 46, as indicated in Fig. 3, the rim of which is rovided with a plurality of openings 47 w iich are adapted to be brought successively beneath the channel 31 so as to aline therewith, as indicated in Fig. 8. This wheel 46 is given a step-by-step motion for this purpose, by any suitable mechanism.

'It should be understood 39 and the gate 42 are automatically o erated from the pointing mechanism. For t is purpose a transverse rock which is operated by an arm 49 in any suitable manner, from the pointing mechanism. This rock shaft 48 is provided with a forked arm 50 which enga es the upper extremity of the plunger 39 as i lustrated in Fig. 1. The construction at this 0in-t comprises a collar 5],which is rigid Wit the stem'40, and this collar enables the forked arm 50 togdepress the plunger by a downward movement; the spring 41 returns the lplunger` to its normal raised position, as will e readily understood.

Iii order to move the gate 42 automatically, a rocker Yarm 52 is provided, which is rigid `with .the rock shaft 48, and this arm'52, through the .medium of a link 53, operates a rocker arm 54 on a small rock shaft 55 which is attached at the side of the frame plate 9, as indicated in Fig. 3. This small rock shaft 55 is provided with a rocker arm 56 having a laterally projecting pin 57 which passes` through a vertical slot 58 formed in the outer end ofthe. gate as indicated in Fig. 8. From this arrangement it should be understood that when the plun er moves downwardly, the gate remains witlgidrawn for a short space of time, so that when the plungei ,has returned to its normal raised osition, a nail may advance into the chai'ine 31. It should be understoodthat the nails should be introduced into the channel 31 in the position illustrated by the nail 59 in Fig. 8; but in the operation of the machine, many of the nails tend to occupy the opposite position, so that that the plunger opposite or wrong yas it does, for ejecting the nails held so that thelr curve 1s 1n the wrong posi- 'of nails held therebetween, by a the o urve of the nail is disposed against the left side of the channel instead of against the right, as illustrated. In order to prevent this,

I provide a selecting mechanism which is dis osed near the middle portion ot the main rol s, as indicated inFigB. Before proceeding to a description of this selecting mechanism, it will facilitate a clear understanding of it to state brieily that in the operation ofthe machine, the nails are being constantly dropped through the feed chute 28 by the feed wheel 4. As these nails fall upon the auxiliary rolls 18, many of them become caught between the vrolls with their points hanging downwardly. In this connection it should be understood that the rolls are near enough together to prevent the heads of the nails from passing through. In this way, it should be understood that the nailsy will become caught between vthe rolls withtheir points hanging downwardly. Itshould' be remembered that horseshoev nails are of slightly curved form, and, naturally, it will happen that some of the nails will he caught with the curve dis osed in the desired position, while others wi l be disposed with the curve in the position to enter the delivering mechanism. For this purpose the selecting device 60 is provided, all'ording means,

tion. It should be understood that the rotation of the rolls 18 tends to advance the row slow movement toward the ends of the rolls.

Referring now especially to Fig. '6, I provide on one side of the machine a guide plate 61 which is carried by a bracket 62 which is rigidly attached to one ol` the standards 16 referred to above. The body ot' this guide plate 61 is disposed substantially parallel with the axes of the rolls, but at its end which is disposed toward the l'eed wheel, it is formed with a slight outward curve or lip 63. The body of the plate 61 lies substantially in alinement with the sideof the guide space or opening which is t'ormed between therolls 11 as shown. On the opposite side of the machine l provide a standard 66 to which an adjustable bracket 64 is attached, said bracket comprising an inclined arm 65. To the outer extremity of the arm an ejector plate 67 is attached; this ejector plate is disposed substantially in alinenient with the opposite side of the open space between the rolls, and its end which is disposed toward the feed wheel, that is, toward the direction in which the 4nails are advancing, is provided with an inclined edge 68. As the nails advance in the feed rolls 18 and 11, those nails the points of which project toward the left, that is, toward the lip 62%, come in contact witlhthe lip 63 and are as to pass into the guide space, between the which are swung inwardly so,

plates 61 and 67. As tothose nails whose points project in the opposite direction in advancing, their points strike the inclined edge 68 and they are deflected more fully toward theright, so that they do not pass into thel guide space between the plates 61 and 67; hence, with these nails, as they reach the ends of the auxiliary rolls 18, they are dropped from the rolls. As they drop they fall upon an inclined apron 69 `whichthrows them down into the feed pan 7. The yother, nails which have been guided properly into the space between the plates 61A and r67, falljfrom the ends of the auxiliary rolls 18, and their heads are caught between the rolls 11. They are then advancedl by the continuous movement ot' the rolls 11 toward the delivery mechanism 29. When the gate 42 at the delivery mechanism` is open, the lforemost nail advances into the channel so that its head comes into the space between rollers 34. ln this way the rollers 3-1 support. the nail in the upper portion of the channel 31. At the proper .moment with respect to the pointing mechanism, the plunger 3E) descendsn strikingthe head of the nail 5E), as indicated inFig. 8 and forces the nail downwardly. ln doing so, rollers 34 4move aside by reason of their resilient mounting, so as to permit the plunger to pass downwardly into the lower portion of the channel, as illustrated. ln this way the plunger l'eeds thc nails one at a time to the pointing mechanism.

l'ndcr some circumstanccs, it may be desired to l'ced the nails to the delivery mechanism in an inverted position; with the heads downwardly. meet this rcquircment,J pro\ idc a modified construction shownfin Figs. 10 and l1. y ln this construction, a guide bracket 7() is mounted upon the upper side ol' the trame plate71 this guide bracket 7() has a vertical channel 72 in which a plunger 78 is guided iu a Vertiealposition. (`onunuuicat ing wit h the channel 72 l provide an inclined guide arm the upper portieri of thethat is, ln order to' the 74 which extends upwardly so that its upper edge lies adjacent to the upper portions ot the main t'ecd rolls 75, the ends oll which are simply cut oll' as shown. so that they present ends projecting bevond the hearings 76. The nails 77 advance between the rolls in the manner descrilwd in connection with the preferred l'orm, and these nails Iare held back by means ol' a time gate 78 similar to the time gate 4;. 'l`his time gate is automatically drawn aside at the required time so as-to allow tlrc nails to pass one at a .time As the nails reach the inclined guide 74, their points are thrown upwardly by a curved trigger 7) which is pivotally mounted at SO'on a horizontal arm 81pmjecting from the ln'acket 70. "lhis trigger 79 is operated by a-crank arm 82, and this crank arm is automatically operated from the machine in any suitable manner. The trigger 79 is in alinement with. the space between the rolls so that as the trigger moves toward the left as indicated in Fig. l1, it engages the lower end of the nail and rotates the nail toward the left so that it falls into the. guide arm or chute 74 head tirst, as indicated by thc/dotted outline, It should be understood, of course, that the auxiliary rolls 18 are at a sufliciently high level to hold the points of the nails clear of the lower rolls ll. The nails whose points are engaged by the. ejector plate are deflected so far to one side that when they fall from the ends of the auxiliary rolls they cannot fall between the main rolls l'l. (')n the other hand, the guide plate 6l holds the points of the right nails directly over the opening between the main rolls so that when they fall from the auxiliary rolls they are caught between the main rolls.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In a feeding device for curved nails, a pair of arallel members disposed apart and adapteiito hohl nails by the head suspended in the space between said members, said space being continuously open whereby said nails may pass from between the ends of said members, a second pair of members disposed apart and adapted to catch the nails which Apass from adapted to engage those nails suspended from sald first members having 'thelr points projecting in the same way.

2. .ln a feeding device for curved nails, in combination, a pair of parallel members adapted to suspem'l nails by the heads therebetween and adapted to let said nails fall when they are advanced to the ends of said members, a second pair of parallel members presenting a space therebetwman into which said nails may fall from said first members, and means for deilecting the points of those nails projecting in one direction so that these nails cannot fall into the space between said second.membersl 3. In a feeding device for curved nails, in

'combination, means for suspending the nails said Vfirst members, and an ejectorl guided in said channel and by the heads in an elevated position, means for similarly supporting the nails at a lower elevation, means for guiding the points of the right nails .into position to be caught by said second named means, the points of the wrong nails so that they pass said second-named means when they fall.

4. In a feedingx device for nails, in combination, a pair of feed devices disposed apart and adapted to support nails suspended by the heads in the space therebetween, a housing constitutingl a guide, rollers movably mounted on said housing, alining with said devices and adapted to receive the nails therefrom one by one, ,means for resiliently holdinel said rollers in position, and a mov able p unger adapted to advance the nails from between said rollers.

5. Ina feeding .device for nails, in combination, a pair of feed rolls, a housing having a guide channel, means for holding the nails in said channel when delivered from said rolls, and a plunger for advancing the nails when held by said last means.

(3. In a feeding device for nails,'in combination, a pairY of feed rolls, spaced apart, a housing having a guide channel, a pair of rollers alining respectively with saidrolls, means for resiliently holding said rollers at the sides of said channel, said rollers being adapted to support the nails they are fed through into said channel, and a plunger adapted to advance into the space between said rollers.

T. In a feeding device for nails, in combination, a pair of feed rolls, spaced apart, a housing adapted to .receive the nails one at a time from said rolls, and a gate adapted to move into the space between said rolls and said housing an( cutting otll the advance of the nails to said housing, said housing having a channel for guiding the nails to thepointing device.

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

JOHN S. PYPER. Witnesses.:l

J. ALFRED BABER, WILLARD H. BABER.

and means for guidingA

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