US2470102A - Conversion unit for coining presses - Google Patents

Description

May 17, 1949. W. P. KRUSE ETAL I CONVERSION UNIT FOR COINING PRESSES 4 Sheets-Sheet 1 Filed March 23, 1945 Y B s 4 2 5 F75 5 F m 5 D INVENTOR5 VY/LL/AM F? KEUSE ATTORNEY May 17, 194,9. w. P. KRUSE l =I T AL 2,470,102

CONVERSION UNIT FOR COINING PRESSES 4 Sheet s-Sheet 2 Filed March 25, 1945 INVENTORS MAL/AM I? A RU5E BY Jess/ 14 VV STEEL ATTORNEY May 17, 1949. w. P. KRUSE ETAL V CONVERSION UNIT FOR (JOINING PRESSES Filed March 23, 1945 4 Sheets-Sheet '5 ATTORNEY W. P. KRUSE ETAL CONVERSION UNIT FOR COINING PRESSES May 17, 1949.

Sheets-Sheet 4 Filed March 23, 1945 IINVENTORS W/LLm/w P Keusa BY JOSIEPH W 5115151.-

ATTORNEY Patented May 17, 1949 CONVERSION UNIT FOR. COINING PRESSES William Peter Kruse, San Francisco, and Joseph Wynn Steel, Alameda, Qalif.

Application March 23, 1945, Serial No. 584,482

1 Claim. (01. 78-99) (Granted under the act of March 3, 1883, as

The invention described herein may be manufactured and used by or for the Government of the United States for governmental purposes without the payment to us of any royalty thereon in accordance with the provisions of the act of April 30, 1928 (Ch. 460, 45 Stat. L. 467).

Our invention relates to coin stamping presses and particularly to a conversion unit by means of which presses designed for stampin a single coin for each cycle of operations may be converted into one which stamps two coins for each cycle of operations, thereby increasing the output of each press one hundred percent.

In the accompanying drawings:

Figure 1 is a plan view of our unit attached to a fragment of a press with the feeding arms holding a pair of blanks in position for stamping.

Figure 2 is a vertical section on the line 2-2 of Figure 1.

Figure 3 is a fragmentary plan view similar to Fig. 1 of the planchet" or blank feeding arms, the latter being in approximate receiving position.

Figure 4 is a fragmentary elevation showing our means for feeding blanks from a single tubular magazine into twin magazines.

Figure 5 is a fragmentary plan View of a tubular magazine and our mechanism for feeding a blank into each twin magazine alternatively.

Figure 6 is a vertical section on the line 6-6 of Figure 5.

Figure 7 is a vertical section on the line 'l1 of Figure 5.

Figure 8 is a horizontal section on the line 8-8 of Figure 6.

Figure 9 is a plan view of a collar which holds our twin dies in proper alignment.

Figure 10 is a vertical section on the line Ill-10 of Figure 9.

Figure 11 is an elevation of one of our lower dies.

Figure 12 is a plan view of the die illustrated in Figure 11.

Figure 13 is an elevation of one of our upper dies.

Figure 14 is a bottom plan view of the die illustrated in Figure 13.

In these drawings:

A single tubular magazine I l receives blanks or' planchets l2 from any suitable hopper (not shown). The blanks I2 fall be gravity through the magazine ll (Fig. 2) to a shutter l3 which is provided with a blank-receiving recess M. The shutter I3 is provided with a laterally extending lug l5 (Fig. 4) which is engaged in a terminal slot IS in one arm I! of a bell crank 18 on a pivot l9 amended April 30, 1928; 370 0. 6.257)

which extends laterally from the wall of two spaced tubular magazines 20, 2|, directly under the magazine II and shutter l3 (Figs. '7 and 8). A second bell crank arm 22 is engaged by a spring detent 23 attached to a vertically reciprocated element 24 (Figs. 1 and 2) of a coin stamping press, whereby the shutter I3 is moved in one direction for each cycle of operation of the press, while a tension spring 25 attached to the lug 15 provides a means for returning the shutter [3 to its initial position. As the shutter I3 is reciprocated a blank drops into the recess l4 each time the recess passes under the magazine H and is then deposited in a magazine 20 or 2|, each of which is provided with a sight opening 26 or 21 (Fig. 8).

Beneath the downwardly open magazines 20, 2| are two feeder arms 28 and 29 (Figs. 1-3) which are cut out at 30, 3|, 32 and 33 to provide blank-receiving recesses which align with the magazines 20 and 2|, respectively, when in receiving position (Fig. 3)

The feeder arms 28, 29 deposit a blank on each of two lower dies 35 and 36 (Fig. 2) which are flattened adjacent to each other and held in alignment by a guide collar 31. The two upper dies 38 and 39 are similarly held in alignment with the lower dies in recesses 40 and 4| in the vertically reciprocated member 24.

It will be observed that a line joining the centers of the dies 35 and 36 forms an acute angle with the direction of travel of the feeder arms 28 and 29 (Fig. 1) and that a line joining the center lines of the magazines 20 and 2i makes the same angle with the direction of travel of the feeder arms 28 and 29. This angular arrangement reduces the distance traveled by the feeder arms 28 and 29 between the magazines and the dies (see Fig. 1) The collar 31 is designed to fit in the standard presses.

Referring to Figure 2, the mechanism for reciprocating the arms 28 and 29 is shown as slide members 42 to which are rigidly secured vertical studs 43 which provide pivotal bearings 44 for the feeder arms 28 and 29.

The mechanism described above provides a conversion unit which may be used with a standardized coin press with a minimum of alteration.

It should be understood that the present disclosure is for the purpose of illustration only, and that the invention includes all modifications and equivalents which fall within the spirit and scope of the appended claim, in which it is our intention to claim all novelty inherent in our invention as broadly as possible in view of the prior art.

What We claim is- A coining press including a single stock coinblank magazine, a reciprocating feeding means for withdrawing a blank from said magazine successively on each forward and return stroke of said means, a pair of spaced receiving magazines into each of which said feeding means deposits a single blank on each of said strokes, blank transfer means movable to one position on Which said receiving magazines simultaneously deliver a pair of blanks, a pair of lower coining dies, a plunger, a pair of upper dies on said plunger, means moving said blank transfer means to another position for delivering said pair of blanks onto said lower coining dies on each cycle of operation for simultaneous coining of said blanks, a bell crank connected to said reciprocating feeding means for moving said feeding means forward to transfer a blank into one of said magazines and spring means for returning said feeding means for depositing a blank into the other of said receiving magazines and means on said plunger for engaging and operating said bell crank on the down stroke of said plunger whereby the movement of the bell crank deposits one blank on the down stroke of said plunger and said spring operates to deposit another blank on the upstroke of said plunger.

WILLIAM PETER KRUSE. JOSEPH WYNN STEEL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 48,157 Coleman Jan. 13, 1865 574,227 Smith Dec. 29, 1896 912,194 Smith Feb. 9, 1909 1,129,882 McFeely Mar. 2, 1915 1,230,811 Shippee June 19, 1917 1,827,566 Dickson Oct. 13, 1931 1,941,992 MaKenny Jan. 2, 1934'

Images