US1769923A - Stamping machine - Google Patents

Description

s. w. HEENE 1,769,923

STAMPING MACHINE Y Filed May 2, 1929 2 shee tsf-sheat 1 INVENTOR 0. WJ-leene- ATTORNEYS Patented July 8, 1930 fir s]; an s a i as earner entice enonen W. rnnnii, or CLEVELAND, OHIO STAMPING MACHINE Application filed May 2, 192 Serial No. 359,957.

for theoperations of stamping and discharging an emblem.- The stamping operations are carried out by a lever which cooperates wvith dialmechanism to indicate just which characters are to beflstamped on the blank, while a separate lever is operated to discharge tie finished emblem'from the machine,

lhe dischargeof a'finished blank from the machine involves the operations of certain mechanisms which are associated with the stamping mechanism as well as the trigger or coin release-means. I have found that under conditions of actual commercial use, a person operating the machine will very often start'the discharge operation and then. for some reasontry not to complete the same but to restore the machine tova condition wherein stamping operations may be per formed. Such an attempt on the part of persons availing themselves of the machine have caused injuries to machines which have proved to be of seriousnature.

In view of the foregoing, this invention therefore has as its primary object the provision of means for compelling the complete carrying out of the discharging operation, once the. same has been'initiated, before the machine can again be put into condition wherein stampin operations may be per-,

formed, This objective is obtained by providing certain arrangements of mechanisms as will be hereinafter more fully set out.

This and other more detailed objects and advantages will in part become apparent and mechanism to put the machine-into condition in part be hereinafter stated as the description of the invention proceeds.

For a full and more complete understanding ofthe invention, reference may be ha-d'to the following description and accompanying drawings, in which a Figure 1 is a View in front elevation of that part of the mechanism of the stamping machine with which my inventionis associated i Figure 2 is aplan view of the mechanism shown in Figure 1.

Figure 3-is a view somewhat similar to Figure 2, but showing the mechanism in a different condition of operation.

Figure 4 is a detail perspective of certain parts of the mechanism bringing out the man ner of operation of the mechanismprovided by this invention, and

Figure 5 is a detail showing in perspective of the stop member which forms the very essence of this invention.

While a preferred specific embodiment of the inventionis herein set forth, it is to be understood that I am not to be limited to the exact constructions illus'tratedand described, because various modifications of these details may be provided in putting the invention into practice within the purview of the appended claims. Throughout the various figures of the drawings, and following description, like reference characters denotecorresponding parts. In order to set out and describe in a clear manner my invention, itwill first be necessary to set up that part of the machine with which the improvement is'related. Referringnow to Figure 1, it is noted that a base A which may be of any desired construction carries the essential parts of the mechanism. Mounted in suitable brackets 1 and 2 which are secured tov the base A in-any preferred manner, such as by the screw bolts shown at 3, is a shaft which is described by the reference character 4. This shaft has pinned to its inner end a hub member 5 from which erential edge with ratchet teeth 7. The hub 5 is in non-rotatable relation with respect to the shaft 4 due to the presence of the pin 8. Pivotally secured to the upper portion of bracket 1, as clearly shown in Figure 4, is a dog 9, having a tooth which is designed for cooperation with the ratchet teeth 7 A bow member having arms 11 and 12 is secured to the up er portion of the bracket 1 adjacentto t e dog member 9 in any preferred manner and fastened to each of the arms 11 .and 12 are springs 13 and 14 which havetheir other ends fastened to the dog member 9.

These springs tend to affect the dog member 9 with respect to its cooperation with the ratchet 7 in a manner to be hereinafter more fully described.

The shaft 4 is carried in the sleeve or hub member 15 which is keyed to the shaft 4 in a driving relation, and extending downwardly from the sleeve or hub member 15 is a sectorlliember 16 to which is connected a chain Jfiand it is' these parts 15, 16 and 17 which set up the operative connection between the shaft dread the emblem ejecting mechanism (not i1 Positioned just in front of the bracket 2 on the Shaft 4 is another hub member 18 m'liim iskeyed to the shaft 4 to provide a nonrotatable connection between these parts. The hub member 18 has integrally formed was the stop portions 19 and 20 of the shape clearly shown in Figure 5, and it is thin parts which constitute the very essence offflle present invention. The manner of cooperation of this member 18 with its accom panying parts 19 and 20 will be made more apparent by the following description.

flmried by the shaft 4 and upwardly disposed with respect to the member 18 is a Heats member 21 formed with a groove 22.

. "Elia sleeve 21 is mounted so that it is permit- Ma certain amount of sliding movement with respect to the shaft 4 but which sliding movement in no way interferes with thedrivrelation between the sleeve and the shaft Qwehich is set up due to the presence of the key shown at 23. The forward face of the sleeve 21 is provided with small openings as indicated by the dotted lines in Figure 2 and Men-ed to by the reference character 24.

enings 24 are designed to receive pins25carried by the sleeve 26 which is freely momma on the shaft 4 at its forward end. "'IHehleeve 26 is provided at its outer end with suitable means for detachably (or permaafixing thereto a handle member.

We now pass to the assembly associated with a shaft 28 which is carried by brackets 29 and 30 that are of course in turn mounted on the base A. The shaft 28 has pinned thereto an arm 31 which operates the hammer 32 of the stamping mechanism shown in Figure 1. The partlcular relation between these parts is not important so far as the instant invention is concerned and hence is not here described in detail nor are these specific features of the stamping mechanism described.

A sleeve 33 which is similar in formation to the sleeve 21 is slidably carried on the shaft 28 by the key shown at 34 and has a sliding movement on the shaft which is limited in one direction by the bracket 29 and in the other by a sleeve 35 that is mounted for free rotation on the shaft 28 but the sliding movement of which on this shaft is prevented by a pin 36 which cooperates with a groove in the shaft 28. The sleeve 33 is grooved as shown at 37 for a purpose to be hereinafter set forth. The forward face of the sleeve 33 is provided with openings as shown by the dotted lines in Figure 2 and which are designated 38. These openings are designed to receive pins 39 carried by the sleeve 35 when the sleeve 33 is properly moving to set up this engagement. The sleeve 35 is provided at its forward end with suitable means for attaching a handle operating member thereto. In the present instance this means is shown in the form of pins 40 which are designed to seat in openings in the operating member (not shown).

From the foregoing, it will be seen that the operating relation between the operating members carried by the sleeves 26 and 35 and the shafts 4 and 28 is set up only when the openings 24 and 38 in the sleeves 21 and 33 have seated therein pins 25 and 39 carried by sleeves 26 and 35. The mechanism for controlling the sliding operation of these sleeves 21 and 33 is described in the following manner.

A double yoke member 41 for the sleeves 21 and 33 has in this instance taken the form of a plate as clearly shown in Figure 4. This plate is formed at each end with arms referred to as 42 which fit in the grooves 22 and 37. This yoke arrangement permits of the free turning of the sleeves 21 and without affecting in any manner the yoke, but the plate 41 controls the sliding movement of these sleeves. Substantially intermediate its ends the plate 41 is provided with a notch 43 with which cooperates the latch or trigger member 44 that is pivotally mounted at 45 on a bracket 46 and which has a hook member 47 on its forward end which is formed with a lowered flat portion indicated by dotted lines in Figure 3 and referred to by the referenoe character 48. This flat portion is designed to engage with the plate 41 at the bottom of notch 43. A spring 49 has one end affixed to the triggermember 44 forwardly of the pivot 45 and its other end to the base A. This spring 49 constantly tends to urge the forward portion. of the trigger member 44 downwardly. However, when the machine is operated by a coin under certain conditions this forward part of the latch arm 44 is moved upwardlyagainst the actioncof the spring 49. I

A bracket member 50 together with, bracket 46, both of which are secured to the base A, slidably receives-a reciprocating rod 51. One end of the rod51 is securedv to the plate 41 as shown at 52. Aspring 53 surrounds the rod 51 and is held between bracket 46 and a collar 54 on the rod 51 which is maintained positioned by any suitable means as the set screw shown at 55. This spring 53 is of'the expanding type and constantly 6X- erts tendency to move the rod 51 forwardly, thereby creating the constant tendency on the part of the yoke plate 41 to move the sleeve members 21 and 33 forwardly to a position wherein the pins 25 and 39 will be seated in the openings 24 and 36. It is apparent that at certain times this tenden y of the spring 53 to move the rod forwardly is negatived by the latch arm 44, particularly when the hook portion 47 engages yoke 41.

Freely pivotally secured to the forward face of the yoke plate 41 is a cam member 56 which is provided with cammed surfaces and 58. A second cam member 59 is mounted on the sleeve 26 and is formed with the cam surfaces 60 and 61. The cam surface 61 on the member 59 is designed for cooperation with the cam surface 57 on the cam 56 to move the yoke member 41 together with the sleeves 21 and 33 rearwardly upon clockwise movement of the sleeve 26. However, these cammed surfaces 61 and 57 are only brought into engagement subsequent to an anti-clockwise rotation of the sleeve 26 during which movement the cam surface 60 has engaged the cam surface 58 on the cam 56 to move the cam 56 upwardly on its pivot so that it passes over the cam 59 to a position wherein the cam surfaces 61 and 57 5 are brought into engagement. The operation of the mechanism hereinbefore described may be briefly summed up as follows 'Under normal conditions the hook 47 on the latch arm 44 holds the yoke plate 41in a position wherein the sleeves 21 and 33 are maintained out of engagement with the sleeves 26 and 35. Under this condition, the operating members which may be attached to the sleeves 26 and 35 may be operated without in any way affecting either the stamping mechanism or the emblem ejecting mechanism. When a coin is inserted in the coin control mechanism, the forward part of the latch arm 44 is moved upwardly against the action of the spring 49 and the hook portion 47 becomes disengaged from the plate 41. This plate is now moved forwardly-under the action of the spring 53 in a position wher in the recesses 24 and 38 in the sleeves 21 and 33 re ceive the pins and 39 of the sleeves 26 and 35, whereby a driving relation between the sleeves 26 and and the driving relation of shafts 4 and 28 is set up. Under this condition the fiat portion 43 of the hook 47 is held in engagement with the lower portion of notch 43 by the spring 49.

The operatingmember associated sleeve 35 maynow be availed of to carry out the desired stamping operations. After the stamping operations are completed, it is customary to operate the operating memwhich still would not be permitted if the tooth 10 of the dog had not completely passed the ratchet 7 in the anti-clockwise movement. l have found that under certain conditions, particularly after a machine has been in use for a while, that when the tooth 1-0 of the dog 9 is in engagement with the last notch of the ratchet 7 but which notch has not completely passed the tooth 10, the cam member 56 has been moved sufliciently by the anti-clockwise rotation of the sleeve 26 andthe engagement of the cam surfaces 60 and 58 to cause the cam member 56 to drop into the position wherein the cam surfaces 61 and 57 are brought into engagement. Under such a condition rotation of the shaft 4 in clockwise direction prior to a completion of the discharging operation, will cause a movement of the plate 41 rearwardly to a position where it will again become engaged with the hook member 47 of the latch arm 44. To prevent such an occurrence asthis I have provided the stop member 19 carriedby the hub 18 and which member limits the rotation in both directions of the shaft 4 due to cooperation with abutments 62 and 63 with the stop member 20 which is designed to prevent inward movement of the yoke member 41 under just such a condition as that described. However, this member 20 is cut away as shown at 64 to permit of the inw rd movement of the plate 41 under proper conditions, and which condition is when the ratchet 7 has completely passed the tooth 10 of the dog 9, whereupon clockwise rotation of the shaft 4 will move the stop 20 to such a position that it does not interfere with a with the return inward movement of the plate 41. It will be seen that there is a particular associstion and relation between the cam member 56 and the stop member 20. The stop member 20 must be positioned at the proper time with respect to the o eration of the cam haembers 56 and 59 so t lat it does not interfare with this inward movement of the yoke 151m 41. Under ordinary conditions a slight amount of play permitted by the last tooth of the ratchet would permit of the shaft 4 to be rotated in the clockwise direction even though the ratchet 7 had not completely passed the tooth 10, whereupon the cams 56 and 59 would tend to move the yoke plate 41 inwardly to cause damage to the machine.

This however, is prevented by the stop member 50.

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

1; Mechanism of the class described, comprising, in combination, a shaft, mechanism operative] associated with the shaft to opcrate the discharge means of a stamping machine, an operating member for the shaft adapted to rotate the same in both directions, a sleeve forestablishing a driving relation between the operatin member and the shaft, Blld sleeve being slicfable on the shaft to establish or discontinue the driving relation, means for moving the sleeve in one direction on the shaft to establish a driving relation, and means operable incident to rotation of the shaft in one direction to move the sleeve in the opposite direction to discontinue the driving relation between the operating membe! and the shaft, a tooth and ratchet mechaniem for preventing reverse movement of the shaft once a discharging operation has been initiated and not permitting said reverse movement until the discharging operationhas been completed, and a stop member forpreventing movement of the sleeve with respect to the shaft to discontinue the drivingrelation between the two prior to a complete operation of the tooth and ratchet mechanism caused by a complete carrying out of the discharging operation.

2. Mechanism of the class described, comprising, in combination, a shaft, mechanism eperatively associated with the shaft to operate-the discharge means of a stamping machine, an operating member for the shaft adapted to rotate the same in both directionjsya sleeve for establishing a driving relation between the operating member and the shaft, said sleeve being slidable on the shaft to establish or discontinue the driving relation, means for moving the sleeve in one direction on the shaft to establish a" driving relation and means operable incident to rotation of the shaft in one direction to move the sleei e in the oppositedirection to discontinue the driving relation between the operating member and the shaft, a ratchet mechanism including a toothed member for preventing reverse movement of the shaft once a discharging operation has been initiated and not ermitting said reverse movement until the discharging operation has been completed, and a stop member for limiting the rotation of the shaft in both directions, said stop member carrying means for preventing sliding movement of the sleeve to discontinue the driving relation between the operating member and the shaft prior to a complete passing of the toothed member by the ratchet means which is caused by a completion of the discharging operation.

3. Mechanism of the class described, comprising, in combination, a shaft, mechanism operatively associated with the shaft to operate the discharge means of a stamping machine, an operating member for the shaft adapted to rotate the same in both directions, a sleeve for establishing a driving relation between the operating member and the shaft, said sleeve being slidable on the shaft to establish or discontinue the driving relation, means for moving the sleeve in one direction on the shaft to establish a driving relation and means operable incident to rotation of the shaft in one direction to move the sleeve in the opposite direction to discontinue the driving relation between the op erating member and the shaft, a ratchet mechanism for preventing reverse movement of the shaft once a discharging operation has been initiated and not permitting said reverse movement until the discharging operation has been completed, a stop member for limiting the rotation of the shaft in both directions, said stop member carrying means for preventing sliding movement of the sleeve to discontinue the driving relation between the operating member and the shaft prior to a complete passing of the toothed member by the ratchet means which is caused by a completion of the discharging operation, said stop member being keyed to the shaft, and means for preventing movement of the sleeve with respect to the shaft,

consisting of a cut-away member fastened to the stop member and so arranged as to permit of the movement of the sleeve with respect to the shaft when the discharging operation has been completed.

4. In a stamping machine of the class described, the combination, with a shaft, discharge mechanism for the stamping machine associated with the shaft and operated thereby, an operating member adapted to rotate the shaft in one direction to cause discharging operation, of means for setting up a driving relation between the operating member and the shaft, means for preventing a discontinuation of the driving relation between the operating members and the shaft once a discharge operation has been initiated and not permitting the discontinuation of the driving relation until the discharge opera tion has been completed, and a locking means operatively associated with the means for setting up the driving relation between the operating member andthe shaft, said means connected to the shaft and positively looking the shaft at the termination of the operation.

In testimony whereof I afix my signature.

GEORGE W. HEENE.

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