US682823A - Wrapping-machine. - Google Patents

Description

No. 682,823. Patented Sept. l7, 19m.

T. n. TRIPP.

WRAPPING MAGHINE (Application filed Jun. 16- 1901.)

2 Sheets-Sheet I.

(No Model.)

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No. 682,823. Patented Sept. [7, I9OI. T. N. TRIPP.

WRAPPING MACHINE.

Application filed Jan. 16. 1901.) (No Mndel.) 2 Sheets-Sheet 2.

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THAXTER N. TRIPP, F LYNN, MASSACHUSETTS.

\ WRAPPING- MACHINE.

SPECIFIGATION forming art of Letters Patent No. 682,823, dated September 17, 1901. Application filed January 16, 1901. Serial No. 43,537. (No model.)

To aZZ whom itmay concern.- Be it known that I, THAXTER N. TRIPP, of Lynn, county of Essex, State of Massachusetts, have invented an Improvement in Wrapping-Machines, of which the following description, in connection with the accomscribed in the United States Patents No.

472,202, dated April 5, 1892; No. 516,136, dated March 6, 1894; No. 548,677, dated October 29, 1895, and No. 595,421, dated December 4, 1897, which is especially designed for wrapping more or less spherical objects, such a as oranges.

'may be omitted and in lieu thereof a rest provided for the article, upon which the article, with its wrapper, will be deposited and supported while the edges of the wrapper are upturned and gathered in and secured together 5 also, to provide means for ejecting the wrapped article; also, to improve the construction of the mechanism by which the edges of the wrapper are secured together, whereby certain variations may be compensatedfor automatically.

The invention consists in details of construction, as will be hereinafter pointed out,

Figure 1 shows in side elevation a suflicient portion of a wrapping-machine embodying this invention to illustrate it. Fig. 2 is a detail of the rest on which the article, with its wrapper, is deposited and held while the edges of thewrapper areturned up, gathered in, and secured together. Figs. 3 and 4 are details of the locking device for the rest. Figs. 5 andG are details of the ejector. Fig. 7 is adetail of the yielding connection providedfor the actuating mechanism of the jamming or pinching devices. Fig. 8 is a detail to be referred to.

The base A; stand or column b, rising therefrom and supporting the table or other framework for the operating parts; the centering device, consisting of the ring of, having a number of depending spring-acting fingers .u down through which the orange or other article is forced by the plunger 0; the bar 0 pivoted at c to the stand b; the link 0 connecting one end of said bar to the lower end of the plunger 0'; the stationarily=attached arms or brackets a a on the stand b, which afford bearings for the plunger-rod e and other parts to be described; the wires 80, which project forward beneath the centering device and which hold the severed wrapper directly beneath said centering device, and therefore constitutes the wrapper-support, and the device disposed beneath said wrappersupport, constructed and arranged to gather in and jam or pinch together the edges of the wrapper, comprising the pile of two armed plates 1) and the pile of two armed plates 11 the rack-bars e '0 pinions e v and rack-bar o are all constructed substantially the same as shown in the aforesaid Patent No. 595,421, although herein said device is adapted to upturn the edges of the wrapper, as Well as gather in and secure the edges of the wrapper together.

25 represents the rests and, as herein shown,

consists of a slightly-concaved or fiat disk formed at the upper, end of a vertical rod or .bartof suitable length, which passes through holes tv 25 formed, respectively, in the arms a a which serve as guides for the bar. The bar t is normally held in its elevated position by means of a spring 11 which is connected at its upper end toa hook on the arm a and at its lower end to a hook on the lower end of the bar. When said bar tis in its normal elevated position, as represented by dotted lines, Figs. 1 and 2, a collar t secured to' the bar 15 by a set-screw, bears againstthe under side of the arm of, which limits its, upward movement, and when said bar is in this, position the upper end, thereof projects up through the opening between the plates 2; and '0 and terminates justv below the wrapper, which will be supported on the wrapper-support or on any other suitable wrappersupport. The bar 0 is formed or provided with a recess at i in one side of it, which -provided for accomplishing this result.

have been deposited and on which they are held by the plunger, is forced down through the device, composed,essentially,of the plates 'u and '0 until the top of the article ccupies a plane below said device, and then the restt will occupy approximately the position shown by full lines, Fig. 1. As the rest i on which the articleand wrapper are held by the plunger, passes down through the opening between the plates '0 and o the edges of the wrapper will be turned up about the article into substantially vertical position, and consequently no additional means need be It will be understood, however, that the article and its wrapper are still held in position on the rest by the plunger. \Vhen the rest, with the article and wrapper thereon, has been forced down by said plunger into the fullline position shown in Figs. 1 and 2, the top of the article will occupy a position just beneath the lowermost plates 1) and v and the upturned edges of the wrapper will occupy a position in the opening between saidplates. The movement of the plunger is sufficient to alwaysforce the article down to this position regardless of the size of the article. The bar If, will then be locked by means to be described, while the plunger rises, and as said plunger rises the plates 1) and v are brought together to gather in and jam or pinch and thereby secure together the edges of the wrapper.

By providing a rest for the article instead of a holder, such as shown in Patent No. 595,421, articles of difierent sizes and shapes may be forced down upon it and may be held thereon while the edges of the Wrapper are gathered in and secured together, whereas irregular-shaped articles thrust into the grasp of said holder were liable to turn in said holderaud when turning would pull the wrapper to one side, which was objectionable, and said holder had to be adjusted more or less for large and small articles.

To hold the bar if in its lowermost position while the plunger -ascends, a locking device is provided which, as herein shown, comprises a sliding bar or dog i mounted in guideways in which it is free to slide horizontally, the forward extremity of said sliding bar being formed with a tooth adapted to engage any one of a number of ratchet-teeth formed on one side of the bar 15. The horizontal guideways in which the bar or dog 6 slides are formed in blocks 15 15 mounted on the tically-movable rod or bar '0 and said bar 19 is loosely connected at its lower end at 15 to the arm 0 while its upper end projects up through a hole in the arm a and also through a hole in the sliding bar If", and said bar t is formed at its upper end with a shoulder 15, which is designed to engage said latch and lift it as said bar ascends. The bar Z is cut away at a point intermediate its length for a short distance, as at 15 and is formed with an inclined portion or cam i at one end of said cut-away portion and when said bar 25 is lifted to its most elevated position said cut-away portion 23 comes opposite the end of the latch t As the bar Z is connected to the'bar 0 it will be seen that said bar 25 will be raised simultaneously with the plunger 0*, and as said bar 25 is raised the latch will be lifted into the dotted-line position shown in Fig. 3 and will remain lifted until the cut-away portion Z of said bar If" comes opposite the end of the latch, when said latch will immediately drop into the full-line position shown in Fig. 3. During the time the bar 25 rises the sliding bar or dog 15 will remain in looking engagement with the bar 1. As the bar 25 descends the inclined portion or cam i will engage said latch and will thrust said latch and bar or dog i to which it is connected, to one side, causing said bar or dog to disengage the bar t, where upon said bar 15 will be immediately raised by the spring '6 When the bar resumes its lowermost position, the shouldered end 1 of said bar will come opposite the end of the latch 11 and will permit the sliding bar or dog if to be moved inwardly by means of its actuating-spring 6 to engage the ratchetteeth on the bar If and lock it. It will be understood that when the bar Z resumes its lowermost position the bar 25 will be depressed by the plunger. To maintain the proper relative position of the bar 2, it is formed on one side with a splineway and a finger I5 is attached to the block 29, which enters said s-pli-neway.

A plate t is attached to the plunger-rod c at a point substantially midway its length, the free end of which is formed with an inclined portion which serves as acam, and said plate is designed to serve as an actuator for an ejector. The ejector herein shown consists, essentially, of an arm 15 (see Figs. 1, 5, and 6,) adjnstably secured to a sleeve Z mounted loosely on the plunger-rod 0 and said arm 15 projects from said sleeve horizontally and is provided at its extremity with a disk or ring 29". The arm i is made long enough for the disk or ring 25 to engage the oranges or other article on the rest 23 and is disposed on the sleeve at a proper elevation to swing in a horizontal plane just above said rest t The arm 6 is swung but a portion of a cycle by the oscillation of the sleeve The sleeve t rests upon the arm a and has a lateral projection 3 which extends into the path of movement of the cam 25 so as to be engaged by said cam as the plunger rises, and when engaged by said cam said sleeve will be turned a partial revolution and the arm 25 operated to eject the orange or other article. To restore the arm to its normal position when the cam 25 descends, a spring is placed in a recess provided for it in the lower end portion of the sleeve, one end of which is connected to the sleeve and the other to the arm a.

The actuating device forthe plates orjaws v o is herein shown as a bar (see Figs. 7 and 8) made in two parts 41 v disposed in alinement, with a U-shaped spring 11 disposed between them, or any other form of spring could be substituted for said U-shaped spring. One of said parts, as 12 has secured to it an arm 41 which overlies the other part 17 and the overlying part of said arm 0 11318 formed in it a slot 11 in which a pin e works, which projects from the part 0 The part 0 is guided by resting on the shaft bearing the cam i1 and said part has a pin 12 which enters a groove v in said cam o As the cam rotates the two-part actuating-bar v n will be moved in andout.

I claim- 1. In a wrapping-machine, the combination of a device for gathering in the edges of the wrapper, a wrapper-support located above said device, a rest, normally held in proximity to, yet beneath, said wrapper-support, means for forcing the article down through said wrapper-support onto said rest, and for forcing said rest, with the article and wrapper thereon down below said device to different positionsaccording to the size of the article, and a locking device for said rest, adapted to engageand hold it in its difierent positions with the article below said device, substantially as described.

2. In a wrapping-machine, the combination of a device for upturning and gathering in the edges of the wrapper, a wrapper-support located above said device, a rest consisting of a vertically-movable spring-supported rod normally occupying a position in proximity to, yet beneath said wrapper-support, and above said device, a plunger for forcing the article with its wrapper down through said wrapper-support onto said rest and for forcing said rest, with the article and'wrapper thereon, down through said device to different positions below it according to the size of the article to thereby upturn the edges of the Wrapper, means for engaging and holding said rest in its different positions with the article below said device, and means for operating said device to gather in the upturned edges of the wrapper while the rest is thus 7 held, substantially as described.

3. Inawrapping-machine, the combination of a device for gathering in the edges of the wrapper, a wrapper-support located above said device, a rest normally held in proximity to, yet beneath said wrapper-support, a plunger and means for operating it for forcing the article down through said wrappersupport onto said rest and for forcing said rest with the article and wrapper thereon, down below said device, and a locking device for said rest adapted to engage it when'in its lowermost position, the actuating member of which is connected to the means employed for operating said plunger, substantially as described.

4:. In a wrapping-machine, the combination of a device for gathering in the edges of the wrapper, a wrapper-support located above said device, a rest normally held in proximity to, yet beneath, said wrapper=support, a plunger and means for operating it for forcing the article down through said wrappersupport onto said rest, and for forcing said rest, with the article and wrapper thereon, down below said device, a locking device for said rest, which engages it in its lowermost position, and holds it while said plungerrises ing it in elevated position, a locking device for said rod comprising a dog adapted to engage any one of a number of teeth on said rod, and means for operating said dog, substantially as described.

6. In a wrapping-machine, aset of jamming or pinching jaws for the edges of the wrapper, an actuating-bar for operating said jaws, a yielding connection forming a cooperative part of said bar and means for operating said bar, substantially as described.

7. In awrapping-machinaa set of jamming or pinching jaws for the edges of the wrapper, an actuating-bar therefor composed of two parts or members loosely connected together and a spring interposed between said parts or members, substantially as described.

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

THAXTER N. TRIPP.

Witnesses:

B. J. NOYES, JOHN W. DEERoW.

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