US1660417A - Feeding device for bolts and the like - Google Patents

Description

Feb. 28, 1928. 1 1,660,417

' H. CREHAN ET AL FEEDING DEVICE FOR BOLTS AND THE LIKE Original Filed May 8, 1923 3 Sheets-Sheet 1 FIG.I

mvm'rans a Hu ber t C relm-n and William A. C ehar;

ewazmaww their aj'larney Feb. 28, 1928.

1,660,417 H. CREHAN ET AL FEEDING DEVICE FOR BOLTS AND THE LIKE Original Filed May 8, 3 Sheets-Sheet. 2

a n g N :3 [-2 N; O 1 \M- l 1 E W l g c 1 I INVENTORS Hubert Crab-am e \9 Li zt] m1 WWIMACMW their affarnty Feb. 28, 1928.

H. CREHAN ET AL FEEDING DEVICE FOR BOLTS AND THE LIKE 5 Sheets-Shet 5 Original Filed May 8. 1923 mvnvrons Hub or! Crelzzun and William A. C reham by 44% 74 WW their afforneq Patented Feb. 28, 1928.

HUBEBT GREHAN AND WILLIAM, A. CREHAN, or PirrsBUnei-r, PENNSYLVANIA.

FEEDING DEVICEFOR BOLTS AND THE LIKL.

Original application filcd'll iay 8, 1823, Serial 637,550; "Divided and this 192 B ScrialNo. 756,645.

This application is adivision of copending application Serial No. 637,550, filed May 8,1923, and constitutes an improvement in mechanism for feeding bolts and the like.

An obj-ectof the inventionis to provide mechanism in which carrying means actuated with a step bystep movement present to working heads at each step two articles, and remove at each step two such articles which have been acted upon by the working heads. Y

Another object of the invention is vide means for supplying two bolts, bolt blanks, or other generally similar articles which are circular or many sided in cross section, to the carrying means during each movement thereof. j

In the accompanying drawings Figure 1 is a front elevation of the actuating connections for the carrying wheel of the mechanism; Figure 2' is. .a detail of the means for locking between forward impulses thereof; Figure 3 is a plan view of the bolt feeding mechanism proper; Figure 4 is a front elevation of the same; Figure 5 is a vertical, section throughthe bolt feeding Figure 4; Figure 6 is a detail view showing one of the bolt supporting fingers in side elevation; Figure 7 is a vertical sectional View on an enlarged scale of the means for delivering Figure 8 is a cross taken on the line 8+8 Figure 7 and Figure 9 is a: vertical sectional view through the bolt feeding mechanism on the line 99 Figures 3 and 5. I

In the drawings the reference numeral 1 designates a shaft, which is mounted in bearings 2 on a platform 3. The shaft 1' is rotated intermittently by connection with a constantly rotating shaft 4. This shaft 4 may be rotated in any desirable manner, as by being synchronized with the operation of the main portion of the machine in conjunction with which the mechanism is used, as shown in the above noted application of which the present is a division.

The connections for rotating the shaft 1 comprise a ratchet wheel or disk 5, having thereon peripheral notches 6 in which engages a pawl 7. Swingingly mounted on shaft 4 is a curved lever arm 8 to which is pivotally attached a connecting rod 9,

to pro the carrying wheel in position mechanism on the line 5-5 bolts tothe' bolt carrying means; sectional V ew of the sameappli'cation filed December 18,

which is in turn a crank 10 freely rotatable on the shaft 1.

The movement of actuating shaft 45 is transmitted to act upon the ratchet disk 5 by the shaft 4; and meshes witha pinion 152' on a stub shaft On this stub shaft 13 is a cam 1 1-, which is arranged to act upon the lever arm 8. The action of cam 14' swings lever arm 8 outwardlyinto the posit-ion shown in dotted lines in Figure 1 of the drawings, so that pawl Z acts to. move ratchet disk 5 one step forward. itis the high position of cam 14: moves. out of contactwith lever arm 8, the lever 'a-rnnand i the members connected tl'ierewith, swing backwardly of their own weight into the position shown in full lines in Figure 1, with the pawl 7 engaged in a succeeding notch of the ratchet dis: 5 ready for the next forward impulse.

The mechanism shown'in Figure 2 ofv the drawings is provided to halt and maintain the shaft 1,'with the bolt receiving and car rying means thereon, in props-r position with respect t'ooperating heads 15 and 1-6,- which are indicated" diagramm-atically in Figure 1. This mechanism'comprises an arm 17, -whichis freely rotatable on the shaft 41 and which hast iereon' a locking p in 18"arranged to engage in spaced notches 19 in the periphery of a locking disk 20. Yielding connections 21 serve to maintain thelocking pin 18 in that one of the: notches 19 with which 'it is engaged. The locking pin is withdrawn to permit movement of shaft 1 by means of a cam 22, which is carried by stub shaft 13 and which acts on the arm 17 to lift the same against the resistance. of resilient connection 21.

The means for feeding and carrying the bolts are shown in detail in Figures 3 to 9 inclusive of the drawings. Such means comprisecarrier disks or hubs 23 and 24:, which are keyed to the shaft 1. -Adjustably secured to the outer carrier disk or hub 23 are a plurality of radially extending fin-, gers 25, which have their outer extremities formed to provide pockets 26 for the reception of bolts; and adjustably secured to the carrier disk 24 are radially extending fingers 27, which are provided with similar pockets 28.

pivotally connected with by means of a pinion. 1.1, which is carried spectively for feeding V and retained by the pins fingers of the carriers;

riers must serve to place two bolts in position before the operating heads '15 and 16, it is highly desirable to provide automatic means for feeding two bolts to the carriers at each forward impulse thereof. Such means are shown particularly in Figures 3, i, 7 8, and 9 of the drawings, and comprise primarily the brackets 29 and 30 each of which is provided with a side wall 31 and with a guard plate 32 at the inner or operative end there of. The brackets 29 and 30 are provided rewith inclined tracks 33 and 3A the bolts, and are also provided respectively with swinging rails 35 and 36 which are pivoted at one side of their center to the brackets 29 and 30 by means of bolts 37 The tracks 33 and 3A are provided at their inner or lower extremities with bolt retaining pins 38, and the swinging rails 35 and 36 at their outer extremities with bolt retaining pins 39. p

Figures? and 9 of the drawings show a bolt A in position to bepicked up by the fingers of the carriers resting against the bolt retaining pins 38, and with a bolt B resting against the bolt retaining pins 39. As the fingers 25 and 27 pick up the bolt A, the inner and lower ends of the pivoted rails 35 and 36 are relieved of 'its weight, and the outer or upper ends of the rails 35 and 36 fall downwardly of their ownweight into a position in which the retaining pins 39 no longer prevent movement of the bolt B. This bolt B therefore rolls downwardly by gravity until it ischecked 38 on the tracks 33 and 34, in position to be picked up by the ,while the rails 35 and 36 are brought into their set position, ready to receive another bolt, by the weight of the bolt resting upon their lower extremities. This action is illustrated particularly in Figure 7 of the drawings.

In use of the mechanism the first bolt 5 when placed on the rails and tracks is immediately free to roll, down to the position shown by the bolt A, while the second bolt placed in the mechanism is held in the position shownby the bolt B. Both these bolts are picked up during a single forward movement of the bolt carrying means; and during the interval while these bolts are being acted upon, two. more bolts are supplied to assume the posit-ions A and B.

Secured to the outer side of the outer car- -rier 23 are a plurality of plates of resilient metal arranged to bear heads of the bolts which are the fingers of the carriers, so that they are held firmly but yieldingly for attachment of the nuts; As will be seen in Figure 3 of the against the supported by till drawings, the resilient plates 40 are prevented from coming into contact with the head of bolt A by guard plate 32.

What we claim is: i j

1.Means for feeding bolts and the like comprising a fixed inclined track or way, bolt retaining means adjacent the lower extremity of said track, its heavier portion toward the upper extremity of said track and arranged to be operated by the weight of bolts on the track, and bolt retaining means on said member arranged to retain a bolt adjacent the upper extremity of the track.

2. Means for feeding bolts and the like comprising a fixed inclined track or way, bolt retaining means adjacent the lower extremity of said track, a pivoted member having its heavier portion toward the upper extremity of the track, and bolt retaining means adjacent such extremitythereof; said pivoted member being so arranged that a bolt retained adjacent the lower extremity of the track rests upon the adj aoent portion of said member to cause the bolt retaining means adjacent the upper extremity of the track to hold a bolt in position thereon. V ln witness whereof, we hereunto set our a pivoted member having

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