US859190A - Wrapping-machine. - Google Patents

Description

PATENTED JULY 9.1907.

M. H. BALLARD. WRAPPING MACHINE. APPLICATION FILED MAB.29,'1907.

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PATENTED JULY 9, 1907.

M. H. BALLARD. WRAPPING MACHINE.

APPLICATION FILED MAR. 29, 1907.

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UNITED STATES PATENT OFFICE.

MILTON H. BALLARD, OF LYNN, MASSACHUSETTS, ASSIGNOR TO TRIPP FRUIT WRAPPING MACHINE 00., OF SAN FRANCISCO, CALIFORNIA, A CORPORATION OF MAINE.

WRAPPING-MACHINE.

Specification of Letters Patent.

Patented July 9, 1907.

Application filed March 29, 1907- Serial No- 365,259.

To all whom it may concern:

Be it known that I, MILTON H. BALLARD, of Lynn, county of Essex, State of Massachusetts, have invented an Improvement in Wrapping-Machines, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates to wrapping machines and is intended as an improvement upon the wrapping machine shown in U. S. Patent 812,912, dated Feb. 20, 1906.

One of the objects of my present invention is to provide an ejector for the orange or other article, which is constructed, arranged and adapted to operate to eject the orange, and, while in its abnormal position, to

permit the return of the rest, on whichthe orange was supported, to its normal elevated position.

In said patent the ejector must return to its normal position before the rest can resume its normal position and hence considerable time is lost.

Another object of my invention is to improve the construction of the means employed for locking the rest in its lowermost position and for subsequently releasing it.

Another object of my invention is to provide means for retarding the upward movement of the rest, at the end of its up-stroke, to avoid the jar and vibration due to its suddenly stopping at the end of its lip-stroke.

Figure 1 shows in side elevation a wrapping machine embodying my present improvements. Fig.2 is a detail showing the ejector in plan view. Fig. 3, I, 5 and 6 are details to be referred to of the locking-device for the rest and means for operating it to lock the rest and means for operating it to release the rest.

t represents the upright rest-supporting rod and c the plunger-rod. The ejector is designed to remove the wrapped orange from the rest t on said rod t.

The ejector consists of an arm 25 pivoted to a stationary support and having a bifuracted end, comprising a pair of widely separated fingers t t formed at their extremities with vertical portions 25 The arm t is movable on its pivot in a horizontal plane above the rest 15 when the latter is in its lowermost position, see dotted lines Fig. 1, and is arranged to cause its fingers to engage the wrapped orange on said rest and remove it therefrom. The fingers are separated sufficiently to provide a space between them for the passage of the rest i so that while the arm F occupies its abnormal position, as for instance, the position it will occupy when removing the orange, see dotted lines Fig. 2, the rest i may pass up between said fingers and resume its normal position, and the arm tmay subsequently be restored to its normal position, thereby permitting rapid operation of the rest,

regardless of the position of the ejector, a result which I have not heretofore been able to accomplish. The space between the laterally extended fingers forms a recess of sufficient size to provide for the unobstructed passage of the rest.

The pivoted arm t has an arm t to which is connected a bar it, supported by suitable bearings and movable longitudinally for the purpose of operating the ejector. The end of the bar with or without a roll thereon, engages a cam secured to the shaft f and said bar is held in engagement with said cam by a spring 13 As the cam revolves the ejector is moved in one direction against the action of its return spring 15 and is thereafter returned by said spring. The rest is depressed by the plunger, the extent of its downward movement varying according to the size of the orange, and it is adapted to be locked at the lower end of its downward stroke and to be subsequently released. In carrying out this result improved means are herein shown, which, in practice, has many advantages over the means shown in the aforesaid patent.

The rod t is formed or provided with a series of ratchet teeth t adapted to be engaged by a pawl t secured to one end of a rock-shaft t which is supported by suitable bearings. The shaft t has secured to its opposite end a detent t which is engaged by a detent lever E pivoted to the frame, which is constructed and arranged to hold said detent t in either of two different positions, as shown in Figs. 4 and 5. When in the position shown in Fig. 5, the pawl t is positively held disengaged from the ratchet toothed rod t; and when in the position shown in Fig. 4, the pawl t is held in position to engage the ratchet toothed rod. A spring t is provided on the shaft 25 which is connected with said shaft and is employed to turn said shaft in a direction to move the pawl 15 into engagement with the ratchet toothed rod, when permitted to act. The shaft i is turned in the opposite direction, to disengage said pawl t from the ratchet toothed rod and to move the detent 15 into locking engagement with the detentlever 22 by means provided for the purpose.

As herein shown an arm t, extends from the shaft E, which is connected with the lower end of a rod t, the upper end of which is connected to one end of a lever i pivoted at t, the opposite end of which, with or without a friction roll, engages a cam t secured to the shaft f. The revolution of the cam operates to lift the rod t to thereby rock the shaft and move the pawl out of engagement with the ratchet teeth and to move the detent t into locking engagement with the detent lever t. A spring i is connected with the pivoted lever for controlling its operation. A collar 0 is secured to the plunger-rod c which is so disposed thereon that when the plunger-rod descends it will strike the projecting end of the detent-lever t and operate it to disengage the detent 29, thereby permitting the pawl to engage the ratchet teeth. As the rod 13 is depressed by the descending plunger the collar c will engage the detent-lever and operate it to cause the pawl to engage the ratchet teeth and lock the rod 25 in its depressed position. The plunger-rod then ascends and the cam soon arrives in position to operate the lever t to lift the rod t to thereby move the pawl out of engagement with the ratchet teeth and release the rest. The rest t is then raised by a spring 25 and when released will be raised quickly by said spring, and to obviate checking its upward movement by a fixed stop and thereby producing a jar and causing it and its actuating spring to vibrate, I have herein provided the rod with a piston 15, which enters a hollow cylinder t just before the rod arrives at the upper end of its stroke and by compressing the air in said cylinder eases the final movement.

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

1. In a wrapping machine, the combination of a n1ov able rest and a plunger, of an ejector for removing the wrapped orange from the rest, having a recess which provides for the unobstructed passage of the rest, substantially as describedv 2. In a wrapping machine, the combination with a mov able rest and plunger, of an ejector provided with a pair of widely separated laterally extended fingers, which provide a space between them for the passage of therest, substantially as described.

3. In a wrapping machine, the combination of a plunger, means for moving it, a rest for the article supported by a rod having ratchet teeth, a spring'for lifting said rest, a pawl engaging the ratchet teeth, a rock shaft bearing it, a detent borne by said shaft, a detent-lever, a revolving cam and means operated by it for rocking said shaft to disengage the pawl from the ratchet-teeth and to move the detent into engagement with the detent-lever, and means operated by the descending plunger 1'01 operat ing said detentdever to release said detent and permit the pawl to engage the ratchet-teeth, substantially as described.

4. In a wrapping machine, the combination of a plunger, means for operating it, a rest for the article supported by a rod having ratchet teeth, a spring for lifting said rest, a pawl engaging the ratchet teeth, a rock shaft bearing it, a detent borne by said shaft, a pivoted spring con trolled detent-lever, a cam on a power-driven shaft for rocking said shaft to disengage the pawl from the ratchet teeth, and to move the detent into engagement with the detent-lever, and means operated by the descendingplunger for operating said detent-lever to release said detent, substantially as described.

5. In a wrapping machine, the combination of a plunger, means for moving it, a rest for the article supported by a rod having ratchet teeth, a spring for lifting said rest, a pawl engaging the ratchet teeth, a rockshaft bearing it, a detent borne by said shaft, :1 detent-1ever, a revolving cam and means operated by it for rocking said shaft to disengage the pawl from the ratchet teeth and to move the detent into engagement with the detent-lever, and means operated by the descending plunger for operating said detent-lever to release said detent and permit the pawl to engage the ratchet teeth, substantially as described.

(3. In a wrapping machine, the combination of a vertically movable plunger, means for operating it, a rest adapted to be moved downward by said plunger, a locking-(la vice for said rest, adapted to lock it in its lowermost position, a cam connected with and revolved by the plunger operating means, and means operated by said cam for operating said locking-device, substantially as described.

7. In a wrapping machine, the combination of a vertically movable plunger, means for operating it, a rest adapted to be moved downward by said plunger, a locking-device for said rest, means operated by the descending plunger for operating said locking-device to lock said rest in its lowermost position, a cam connected with and revolved by the plunger operating means, and means operated by said cam for operating said locking-device to release said rest, substantially as described.

S. In a wrapping machine, the combination of a vertically movable plunger, means for operating it, a rest adapted to be moved downward by said plunger, a lockingdevice for locking said rest in its lowermost position, a pivoted actuating lever connected with said locking-device, and means for operating said actuating-lever connected with and operated by the plunger operating means, substantially as described.

9. In a wrapping machine, the combination of a vertically movable plunger, means for operating it, a rest adapted to be moved downward by said plunger, a locking-dc vice for said rest, means, operated by the descending plunger, for operating said lockingdevice to lock the rest, a pivoted actuating-lever connected with said locking-device, and means for operating said actuating-lever connected with and operated by the plunger operating means, substantially as described.

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

MILTON II. BALLARD.

Witnesses A. D. NICIIOL. M. S. Ronnn'rsoN.

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