US1033191A - Table mechanism for box-making machines. - Google Patents

Description

E. G. NORTHRUP.

TABLE MECHANISM FOR BOX MAKING MACHINES.

APPLIOATIONIFILED 312.21, 1911.

1,033,191, Patnted July 23, 1912.

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B. c, NORTHRUP. TABLE MECHANISM FOR BOX MAKING MACHINES.

APPLICATION FILED TEB.21, 1911.

1,033,191 Patented July 23, 1912.

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E. O. NORTHRUP.

TABLE MECHANISM FOR BOX MAKING MACHINES.

APPLICATION IILIBD 33.21, 1911 1,033,191. Patented July 23,1912.

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ELMER C. NORTI-IRUP, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO AUTOMATIC MACHINE COMPANY, OF SAN FRANCISC FORNIA.

0, CALIFORNIA, A CORPORATION OF CALI- TABLE MECHANISM FOR BOX-MAKING MACHINES.

To all whom it may concern:

Be it known that I, ELMER C. NORTHRUP, a citizen of the United States, residing at San Francisco, in the county of San F rancisco and State of California, have invented a new and useful Table Mechanism for Box- Making Machines, of which the following is a specification.

This invention relates to a modified form of table mechanism adapted for use in box making machines of a type shown in an application of mine filed February 15, 1911, Serial No. 608,817, the present invention be ing particularly adapted for use in making orange boxes wherein, in addition to the two heads, a third or partition piece is required to be supported by the table.

Referring to the drawings: Figure 1 is a side elevation of a machine in which the mechanism is employed. Fig. 2 is a side elevation on an enlarged scale of the invention. Fig. 3 is a front elevation of what is shown in Fig. 2. Fig. 4 is a plan View of what is shown in Fig. 3.

1 designates the main frame of the machine with a main driving shaft 2 carrying a pinion 3 which drives a gear 1 on the shaft 5. The shaft 5 is mounted in bearings 6 and carries gears 7 which mesh with gears 8 on counter-shafts 9 in bearings 10 supported by brackets 11. Pinions 12 on the shafts 9 mesh with gears 18 which are preferably formed integral with cams 1 1. The pinion 12 is one-third the size of gear 13, so that each cam 14 is driven at one-third the speed of the shaft 5. Each cam 14 has three faces 15, 16 and 17, as shown in Fig. 2, and resting on the cams are rollers 18 supported by brackets 19 on a table 20, the table 20 having two end faces 21 and one center face 22, the two end faces 21 being adapted to support the end heads of the box and the center face 22 adapted to support the center head or partition of the box, as indicated in Figs. 3 and 41.

The table 20 has a shoe 23 at each end which slides in ways 24: on the main frame 1 guiding the table in a vertical movement.

The object of moving the table vertically is to support the box at the desired elevation for nailing; thus in the operation of the machine, as the cams 14: turn at onethird the speed of the shaft 5, as the cam faces 17 ride under the rollers 18, the table 20 is supported at the proper elevation to Specification of Letters Patent.

Application filed February 21, 1911.

Serial No, 610,084.

hold the three heads in position for receiving the first side and permit the same to be nailed to the heads. The table is maintained in this position during this operation by reason of the cam face 17 being concentric with the shaft 5. At the conclusion of nailing the first side, the depressed faces 25 of the cam arrive at the rollers 18 and mit the table to lower so that it will clear the box as the box is turned and while the table is thus lowered, the box is turned onefourth around by mechanism not shown herein. After the box has been turned, the faces 15 are moved under the rollers 18, thus elevating the table to a point where the heads will be in a proper position to re; ceive the bottom piece, which is moved onto the heads by mechanism not herein shown, and nailed while the face 15 travels along the rollers 18 maintaining the table stationary during this operation, at the conclusion of which the depressed portion of the cams reaches the rollers 18 and permits the table to descend to allow the box to again be turned one-fourth. When the box has thus been turned one-fourth, the cam faces 16 are moved under the rollers 18, lifting the table to the desired elevation to hold the heads at the right level to receive the last side. It will be noted that the heads are supported in this position at a trifle lower elevation than during the nailing of the first side on account of the difference in thickness of the first side which has already been nailed to the heads, for which reason the cam face 16 is slightly lower than the cam face 17, as clearly shown in Fig. 2. The last side having been moved onto the heads and nailed thereto, while the table is supported by the cam face 16, the completed box is pushed off while the rollers 18 and table are again slightly lifted as the cam faces 17 pass under the rollers and the table is then once more in a position to support the heads for another box to receive the first side, whereupon the action is repeatedas before.

That I claim is:

1. In a table mechanism for box making machines, a vertically moving table, and a pair of cams under the table for operating the table, each of the said cams having three cam faces proportioned to hold the table at the right elevation for receiving the parts to be nailed and support the same during er- I Patented July 23, 1912.

such nailing, and having two depressed can'l faces which permit the table to descend be low the box to permit the latter to be turned from one position to another.

2. In a table mechanism for box making machines, a frame having a pair of vertical ways, a horizontal table with a shoe at each end slidahle in the associated way, a roller at each end of the table, a shaft, and a cam on the shaft under each roller, each cam having three cam faces proportioned to hold the table at the desired elevation during nailing and having two depressed oaln faces which permit the table to descend below the box to permit the box to be turned from one position to another.

In testimony whereof, I have hereunto set my hand at Los Angeles, California,this 31 day of January 1911.

ELMER C. NORTH RUP.

In presence of Gr. F. HAcKLnY, FRANK L. A. GRAHAM.

Copies of this patent may be obtained. for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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