US1358793A

US1358793A - Feeding device

Info

Publication number: US1358793A
Authority: US
Inventors: Edwin W Smith
Original assignee: UNITED SROE MACHINERY CORP
Current assignee: UNITED SROE MACHINERY Corp
Priority date: 1917-10-02
Filing date: 1917-10-02
Publication date: 1920-11-16
Anticipated expiration: 1937-11-16

Description

E. W. SMITH.

' FEEDING DEVICE. APPLICATION FILED OCT-2, 1911.

1,358,793. Fig-5.

Patented Nov. 16, 1920.

51 P (D 18 2B O \TQ/ UNITED STATES PATENT OFFICE.

EDWIN W. SMITH, OE BEVERLY, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO UNITED SEGE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A. CORPORATION OF NEW JERSEY.

FEEDING DEVICE.

Specification of Letters Patent.

Patented Nov. 16, 1920.

To all whom it may concern:

Be it known that I, EDWIN W. SMITH, a citizen of the United States, residing at Beverly, in the county of Essex and fitate of Massachusetts, have invented certain Improvements in Feeding Devices, of which the following description, in connection with the accompanying drawings, is a speci iication, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to devices for feeding machines in which material is delivered to an operating member. The invention is herein shown as embodied in a machine especially adapted for stamping in color from a strip of color-bearing material delivered across a die. The general object of the invention is to provide improved feeding means which will eliminate waste of the material delivered to the operating member.

In color-stamping machines, or as they areoften termed, embossing machines, the metal, pigment, or the like which is to furnish the color is commonly interposed between the die and the work in the form of a continuous ribbon. Ina well-known type of apparatus this ribbon is taken from a source of suppl at the rear of the die, passed across and over said die, and brought back to feed or take-up rolls situated adjacent to the suppl roll. It will be seen that in such an arran ment, when a fresh ribbon ofr mrml is started there will be an end portion equal in length to the distance from the workin face of the die to the feed rolls which will not recelve the impressions and will be unused.

an important feature of the invention consists inproviding, in addition to the normal feeding means, auxiliary feeding means constructed and arranged to effect a preliminary presentat on of m terial to the operating member. Preferably this auxiliary feeding means operates to present material to the operatin member until a sufficient length of material has been drawn from its source of supply to reach the normal feeding means, which, as shown, is located on the opposite side of the operating member from the source of ma erial supply. In the illustrated stamping machine, the auxiliary feeding means draws the color ribbon across the stamping die until a used end long enough to reach to the feed rolls has been produced, after which the usual feed rolls operate to draw the material across the die in the ordinary manner.

With the above object in view I furnish initial feeding means, which, as applied to a stamping machine, cooperates with the material at the opposite side of the die from the supply roll and draws off said material as the machine operates until a used end results long enough to reach to the feed rolls, after which feeding may continue in the normal manner. I

A particular organization embodying this and other features of the invention 15 illustrated in the accompanying drawing, in-which Figure 1 is a side elevation of a portion of a stamping or embossing machine having one form of my invention applied thereto;

Fig. 2 is an enlarged detail in side elevation of the casing of my initial feeding devics, the head of said casing being removed, anc

Fig. 3 is a central, horizontal section through the casing.

The numeral 10 designates a portion of the frame of a stamping machine upon which is mounted to be reciprocated by mechanism not illustrated, the head 12 carrying the die 14 to operate upon work supported upon the table 16. At the rear of the die is a supporting roll 17 adapted to receive a coil R of ribbon consisting of metal leaf, paper charged with pigment, or other source of color. From the supply roll the ribbon passes between guide members 1818 across the table beneath the die, and then in the normal operation ofthe machine about a shield 20 carried upon the head 12 and rearwardly to feed rolls, one of which is seen at 22, these rolls being situated above and adjacent to the supply roll. As already pointed out, when a fresh coil of ribbon is applied to the ma ne there will be a portion extending from the forward impression surface of the the about the shield and back to the feed rolls which will not be acted upon by the die. his unused section. especially when the color m terial is such a sub'tince as gold leaf, will cause an appreciable loss. To avoid this the auxiliary feeding attachment shown at A is employed. Mounted on the frame of the machine above the supply and feed rolls isa casing 23 preferably reinovably attached to the arm carrying the head 12. Within the casing beneath a separable cover 24 is a wheel 26 rotatable about a stud 28 secured at the center of the casing head opposite the head 24L. One side of the wheel is recessed to receive a spiral spring 30, the inner end of which spring is fixed, to the squared head 32 of the stud 28 by a screw 34. The outer end of the spring is held to the wall of the wheel recess by a screw 36 threaded through the periphery of the wheel. Thecircumference of the wheel has a groove 38 to receive a cord or other flexible member l0 secured in an oaening -12. This. cord passes through an opening i-l in the outer wall of the drum over the head of the machine, it being guided by an arm 46 preferably formed integral with the casing, said arm. having a depression 18 at its outer extremity to receive the cord and in termediatehorns 50 between which the cord passes. At the outer or free end of the cord is attached a clip 51 adapted to engage the end of the ribbon. R.

In assembling the initial feeding device the spring 30 is put under sufficient tension to hold the clip, when not in engagement with the ribbon, against the horns 50 which thus serve as a stop therefor. When the op erator applies a new coil of ribbon to the roll 16, he draws the end of said ribbon between the guide members. 18, across the table and over the end of the shield 20, at which point he secures to it the clip 51, which is drawn down from its normal position against the horns 50. The tensionput upon the cord 40 by the spring 30 is not enough in itself to uncoil the ribbon from the supply roll, but as. the head. reciprocates in the operation of the machine the frictionalengagement of the shield with the ribbon draws a suflicient amount from the roll to present a fresh surface to. the die. As the head rises, the slack is taken up by tie tension of the spring 30 acting through the cord and in. this manner a constant feed of the ribbon is maintained without atten tion upon the part of the operator. When a sur'iicient length has been drawn off to reach over the shield to the rolls 22, the operator may disengage the clip 51 and start the normal feeding action of the machine. In this way the entire ribbon, except an insignificant portion between the die and the point of attachment of the clip at the end of the shield, is utilized.

Having thus described my invention, what I claim as new and desire to secure by Letv ters Patent of the United States is:

V 1. In a machine of the class described, a source of material'supply, means for 0perating upon the mater al, feeding means for normally drawing material from the source of supply and presenting it to said operating means, and initial feeding means for adrancing the materialto the operating means until a suflicient length of material has been drawn off to reach the normal feeding means.

i l 2. In a machine of the class described, a source of material supply, an operating member, feeding means for advancing material from the source and presenting it to the operating member, and auxiliary power means for effecting an initial presentation of the material to the operating member.

3. In a machine of the class described, a source of material supply, an operating member, feeding means for advancing material from the source and presenting it to the operating member, and auxiliary feeding meansv for presenting material to the ope ating member n i a su f cie eng of material has been drawn off to reach the first-named feeding means.

4. In a machine ofthe class described, a source of supply of material, means for operating upon the material, means for normally feeding the material from the source across the operating means and engaging said material after the operating means has acted upon it, and means for initially feeding the material relatively to the operating means until a length su'llicient to reach the normal feeding means has been taken from the source. 2

In a machine of the class described, a source of supply of material, means for operating upon the material, means for normally feeding thematerial from the source across the operating means, and means for initially feeding the material relatively to the operating means until a used end results long enough to reach the normal feeding 6. In a machine of the class described, a source of supply of material, means for operating upon the material, means for normally feeding the material from the source across the operating means and engaging said material after the operating means has acted upon it, and means including a material-engaging member and atension member connected therewith for initially feeding the material relatively" to the operating means until a length sufficient to reach the normal feeding means has'been taken from the source.

7. In a machine of the class described, a source of supply of material, means for operating upon the material, means fornormally feeding the material from the source across the operating means and engaging said material after the operating means has raged upon it. and means includ ng a cl p for engaging the material, a flexible member connected therewith and a means, for placing the flexible member under tension for initially feeding thematerial relatively to the operating means until a length sufficient to reach the normal feeding means has been taken from the source.

8. In a machine of the class described, a source of supply of material, means for operating upon the material, means for normally feeding the material from the source across the operating means and engaging said material after the operating means has acted upon it, means for engaging the material, a flexible member connected therewith, and a spring for placing the flexible member under tension for initially feeding the material relatively to the operating means until a length sufficient to reach the normal feeding means has been taken from the source.

9. In a machine of the class described, asource of supply of material, movable means for operating upon the material, means for normally feeding the material from the source across the operating means to move therewith, said normal feeding means engaging the material after the operating means has acted upon it, and initial feeding means including a material-engaging member and a tension member connecting the engaging member to a part fixed relatively to the operating means.

10. In a machine of the class described, the combination with a frame, of a supply roll for material, means for operating upon the material, an engaging member for the material, and yieldabl connections between the engaging member and frame.

11. In a machine of the class described, the combination with a frame, of a supply roll for material, means for operating upon the material, a spring carried by the frame, and means for connecting the spring and material.

12. In a machine of the class described, the combination, with a frame, of a supply roll for material, means for operating upon the material, a spiral spring having one end fixed to the frame, a flexible member connected to the opposite end of the spring, and a clip secured to the flexible member and being adapted to engage the material.

13. In a machine of the class d scribed, the combination with a frame, of a supply roll for material, means for operating upon the material, normal feeding means for drawing material from the supply roll across the operating member, and auxiliary feeding means including an engaging member for the material and yieldable connections between the engaging member and frame.

14. in a machine of the class described, a source of material supply, means for operating upon the material, feeding means for normally drawing material from the source of supply for cooperation with the operating means, and initial feeding means independent of the normal feeding means for the material before it reaches said normal feeding means.

15. In a machine of the class described, a source of material supply, means for operating upon the material, feeding means for normally drawing material from the source of supply for cooperation with the operating means, and initial feeding means for engagement with the material after it has been brought into cooperation with the operating means and acting in a direction away from the normal feeding means.

16. In a machine of the class described, a supply roll for the material, means for operating upon the material, feeding means for the material, and auxiliary feeding means for engagement with the material at the opposite side of the operating means from the supply roll.

17. In a machine of the class described, a supply roll for the material, means for operating upon the material, feeding means engaging the material after it passes across the operating means and being situated at the same side of the operating means as the supply roll, and feeding means for engagement with the material at the opposite side of the operating means from the supply roll.

18. In a stamping machine, an operating member, a supply roll for a color ribbon which is to cooperate with the operating member, feed rolls situated adjacent to the supply roll for engagement with the ribbon, and a flexible member for engagement with the ribbon at the opposite side of the operating member from the supply roll.

19. In a stamping machine, an operating member, a supply roll for a color ribbon which is to cooperate with the operating member, feed rolls situated adjacent to the supply roll for engagement with the ribbon, a casing mounted upon the machine above the die, a spring in the casing, and a flexible member connected with the spring and having means for engaging the ribbon.

20. In a stamping machine, an operating member, a supply roll for a color ribbon which is to cooperate with the operating member, feed rolls situated adjacent to the supply roll for engagement with the ribbon, a casing mounted upon the machine above the operating member, a spring in the casing, an arm extending from the easing over the operating member, member connected to the spring and being guided by the arm, and a clip attached to the free end of the flexible member and being adapted for engagement with the ribbon.

In testimony whereof I name to this specification.

EDW IN W. SMITH.

have signed my a flexible It is hereby certified that in Letters Patent No. 1,358,793, granted November 16, 1920, upon the application of Edwin W. Smith, of Beverly, Massachusetts, for an improvement in Feeding Devices, an error appears in the printed specification requiring correction as follows: Page 3, line 111, claim 19, for the word die read operating member; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 22d day of March, A. D., 1921.

[SEAL] M. H. COULSTON,

Commissioner of Patents.

Correction in Letters Patent No. 1,358,793. i