US1103471A - Treadle mechanism. - Google Patents

Description

- J. G. L. BAUER.

TRBADLE MECHANISM.

APPLICATION FILED APR. 3, 1913. 1,1 03,471. Patented July 14, 1914,

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JOHAN GUSTAV LUDWIG BAUER, OF CHICAGO, ILLINOII IS.

TREADLE MECHANISM.

Specification of Letters Patent.

Application filed April 3, 1913. Serial No. 758,581.

To all whom it may concern:

Be it known that I, J OHAN GUSTAV LUD" wre BAUER, a citizen of the United States of America, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Treadle Mechanisms, of which the following is a specification.

The main objects of this invention are to provide an improved form of control mechanism adapted to be actuated for the purpose of shifting certain parts of power driven mechanisms into and out of their operating positions; to provide control mechanism comprising a single operating element or member which is adapted to be actuated so as to shift the several parts of said power driven mechanism separately or simultaneously; to provide control mechanism of this kind wherein the operating member is particularly adapted to be operated by the feet; to provide an improved arrangement of said mechanism whereby the operation of said operating member for selecting the connections leading to the parts of said power driven mechanism is simple and positive; to provide improved means normally urging the several connections of said control mechanism into operative positions with said operating member; to provide mechanism of this kind wherein the operating member is adapted to perform the functions heretofore dependent upon several control members; and to provide mechanism of this kind which is particularly adapted for use on multi-cylinder printing presses.

An illustrative embodiment of this invention is shown in the accompanying drawings in Which- Figure 1 is a plan view partly sectional, of the control mechanism. Fig. 2 is a side elevationof the. same. Fig. 3 is a similar view but showing some of the parts shifted. Fig. 1 is a side elevation as viewed from the plane of the line AA of Fig. 2. Fig. 5 is a detail of the lower end of the operating element. detail taken on the line 13-13 of Fig. 2.

In the controlling of power driven mechanism where several parts thereof are arranged to be shifted into and out of operative position, it has heretofore been necessary to arrange several independently operated controlling members or elements with Fig. 6 is a sectional Patented July 14., 1914..

connect-ions leading from each to the red spective parts which were to be shifted. In power driven mechanism thus controlled it is often difiicult to obtain a speedy and accurate shifting of the parts in case of emergency for thereason that the operator in attempting to make a hasty selection of operating members is likely to become confused. Particularly is this found to be true if the operator attempts to make the selection when conditions are such as to require his eyes to be directed in such a way as to allow but little if any opportunity to carefully observe the controlling members when making the selection. This invention is designed to overcome these difficulties by providing a single controlling element which obviates the necessity of making a selection between a number of cont-rolling members and requires that the operator only learn the method of operation of the single controlling element.

. In the construction herein shown in the drawings the control mechanism comprises an operating element or member 1 mounted on the frame 2 so as to be longitudinally shifted for shifting the members 3, 4, and i 5 which are respectively connected to the bell crank levers 6, 7 and 8, from which connections lead to the parts of the power driven mechanism to be controlled.

The operating element 1 is in the form of a bar extending through a slot 9 formed in the transverse ledge 10 of the frame 2. A longitudinally disposed slot 11 is formed in element 1 near the upper end thereof in which is received the pivot pin 12 supported in the bearing 13 secured to the under side ofthe ledge 10. A spring 14 coiled on the pin 14 is provided with an arm 15 which engages the element 1 at the upper end of the slot 11 and normally urges the element toward its uppermost position as shown in Fig. 2. An anti-friction roller 16 is carried on the arm 15 of the spring 143 which forms the engaging surface between the spring and element. 7

The members 8, 4:, and 5 are in' the form of rods and are bent at their lower ends to form loops 17, 18, and 19, and the extreme ends are bent to form eyes in which the pivot pins are received for connecting them to their respective levers 6, 7, and 8. The members 3, 4:, and 5 extend up along the narrow sides of the element 1 and are embraced by the straps or parts 20 and 21 which'may be integrally formed on the element 1 whereby the members are guided in their respective positions Springs 22 and 23 are interposed between the loops 17 and 18 and lugs 24 and 25 carried on the respective levers 6 and 7 and these normally urge the upper ends of the respective members' against the sides of the element- 1 into positionto be engaged by the shoulders 26 and 27 formed thereon. The springs 22 and 23 also tend to hold the members 3 and 4 against the respective shoulders 28 and 29 formed on the'part 20 and center the ele-.

ment 1 whereby the upper ends of the members 3 and 4 are normally in position for engagement with the shoulders 26 and 27.

The member 5 extends up along the element 1 at one side of the members 3 and 4.

-An apertured lug 31 on the element 1 embraces the rod and serves. to center it with respect to the element 1 when the element is in its normal position, whereby the mem her is in position to be. engaged by the shoulder 30. The levers 6, 7, and 8 are normally urged by means of springs 32, 33 and 34 into position to shift the connected members 3, 4, and 5 into their normal. upwardly shifted positions. The springs 32,

33, and 34 are interposed between hooks formed on the respective levers 6, 7, and 8 and on the plate 35 secured to the frame 2. The shifting of the levers 6, 7, and 8 by said springs is limited by the pins or shoulders 36 and 37 which engage the levers so as to locate the ends of the members 3, 4, and

' 5 free of the respective shoulders 26, 27,

. her 5.

and 30. 7

With the mechanism arranged as shown, the member 5 is adapted to be shifted out of a position that would permit it to be engaged by the shoulder 30 only at such times as the operating element 1 is moved pivotally to shift one of the members 3 or ,4. 'It is sometimes expedient,however, to

shift only the member 5 out of a position to be engaged by its respective shoulder 30 independently of the retraction of the members3 and 4. This may be conveniently done by the use of a bar 38 slidably mounted in the bearings 39 and. connected to a .lever40, and having a wedge shaped shoulder,- adapted to engagethe member 5. Lee ver 40 is pivoted on the frame 2 -at 41 and is'normally urged by. the spring 42 to re tract the wedge from the member 5. A notch 38 in the wedge 38 engages the adjacent bearing 39 and secures the wedge in its shifted position for retracting the mem-' The operating element 1 is preferably arranged to be operated by means of the feet and is therefore provided with a treadle 43 having shoulders 43 at the sides thereof which are adapted tobe en- 7, and 8, to the parts of the power drivenmechanism which are to be shifted and controlled. The construction herein shown has been designed with respect to a multi-cylinder printing press and the links 45 and'46 are respectively connected to the first and second cylinders of said press, and the link 47 connects the lever 8 with the brake.

The operation. of the mechanism shown is as follows: In describing the operation of this mechanism it will be assumed that itis connected for operating a power driven printing press of the multi-cylinder type. With the operating mechanism in itsnormal position as shown in Fig. 2 both cylinders are in printing posit-ion and the brake is released. If it is desired to shiftoneof the cylinders out of its printing position, for instance the first cylinder, will place the ball of his foot upon the treadle 43 and press against the shoulder 43 at the left of Fig. 2, which will tilt the controlling element 1 sidewise on its pivot and cause the shoulder 29 on the part 20 to shift the member 4 outwardly so that the upper end thereof will be moved out of position to be engaged by the shoulder 27 when the operating element 1 is depressed from said pivotally shifted position. This same pivotal movement of the operating element 1 causes the apertured lug 31 to shift the member 5 to the right of Fig. 2 so that it is also out of position to be engaged by its respective shoulder 30. (The position of these parts is shown in dotted outline in Fig. 2). The operator then depresses the operating element 1 and the member 3 being the only one in engagement with its respective shoulder is also shifted, the other levers 7 and 8 remaining in their normal positions. This shifting of the member actuates the lever 6 and causes. the cylinder connected therewith, by means of the link 45, to be shifted out of its printing position. If it is desired to hold the cylinthe operator der in its shifted position the operator shifts the operating element 1 to the left of Fig. 2 so as to cause the pivot pin 12 to be rec eived in the transverse part 48 of the slot 11 whereby it is held againstmovement until released. The shifting of the second cylinder from printing positionis eflected;

in a similar manner. I

If 1t is desired to remove both cylinders from prmting pos1t1on and at the same time quickly stop the machine, the operator merely depresses the operating element 1 whereby all three members 3, 4, and 5 are simultaneously shifted therewith causinga shifting of the levers 6, 7 and 8 of the mechanisms connected thereto.

As hereinbefore stated, it will sometimes be found to be expedient to shift the two members 3 and 4 without shifting the member 5, as would be the case in a mult-i'cylin-fl der printing press when it was desired to move both cylinders from printing position but not throw on the brake at the same time.

In order to accomplish this the operatorfirst depresses the lever 40 which causes the wedge 38 to shift the upper end of the member 5 transversely outward from the plane of the operating element 1 so as tobe free of the shoulder 30. The operating element 1 may then be depressed whereby the members 3 and 4 will be shifted therewith.

Although but one specific embodiment of this invention has been herein shown and described, it will be understood that numerous details of the construction shown may be altered or omitted without departing from the spirit of this invention as defined by the following claims.

I claim i 1. The combination of a'treadle, mechanism adapted to be actuatedby said treadle, [and means normally providing operative connection between said mechanism and treadle and adapted to be actuated by a sidewise shifting of said treadle for releasing said mechanism, from said operative connec-.

tion. u j

2. The combination of a treadle, a plurality of mechanisms adapted to be actuated by said treadle. and means normally providing operative connection between all of said mechanismsand said treadle and adapted to be actuated by a sidewise shifting of said treadle for individually releasing said mechanisms, from said operative connection. j

3. The combination of a treadle, a plurality of mechanisms adapted to be actuated by said treadle, means normally providing.

operative connection between all of said mechanisms and treadle actuated by a sidewise shifting of said treadle for individually releasing said mechanisms from said operative connection, and means for lock ing said treadle .in its depressed position.

4-. The combination of a depressible treadle, a resilient arm located at one side of said treadle and engaging the same, and hen mally' urging it into its elevated position,

mechanismadapted to be actuated by saidtreadle, and means normally providing 0perative connection between said mechanism and treadle and actuated by a sidewise shift ing of said treadle for releasing said mechframe,

5. The combination of a depressible treasaid treadle and having an arm engaging said treadle, and normally urging it into its elevated. position, mechanism adapted to be actuated by said treadle, and means normally providing operative connection between said mechanism and treadle and adapted to be actuated by a sidewise shifting of said treadle for releasing said mechanism from said operative connection.

6. Control mechanism comprising a longitudinally shiftable operating element, a member shiftably mounted adjacent to said element, and having a part thereof extending into positionto be engaged by said element so as to cause said member to be shifted with said element during its longitudinal movement, said element being transversely shiftable, and means actuated by. the transverse shifting of said element and adapted to retract said member from a position to permit said part to be engaged by said element so as to allow said element to beshifted longitudinally independently of said member.

7. Control mechanism comprising an operating element mounted to be longitudinally shifted, a member shiftably mounted adjacent to said element, a shoulder on said element, means normally urging said member. into position to be engaged by saidshoulder to cause a shifting ofsaid member with said element, said element being adapted to be transversely shifted and means actuated by the transverse shifting of said element and adapted to retract said member from a position to be engaged by said shoulder' so as to permit said element to be longitudinally shifted independently of said member.

8. Control mechanism comprising a frame, an operating element pivotally mounted on said frame and being also arranged to be longitudinally shifted, a member shiftably mounted adjacent to said element, means normally urging said member into position to be shifted with said element when it is longitudinally shifted, and means actuated by the transverse shifting of said element and adapted to retract said member from a position to be engaged by said element, so

as to permit said element to be longitudinally shifted independently of said member.

9. Control mechanism an operating element pivotally mounted on said frame and longitudinally shiftable, a plurality of members shiftably mounted adjacent to said element and nor" mally urged into positions to be engaged by said element, and moved therewith when it is longitudinally shifted, and means actuated by the transverse shifting of said element adapted to .shift one of saidmembers out of position to be engaged by said element,

comprising a frame,

pin supported on said frame and received in said slot, means normally urging said element to locate said pin in one end of said slot, a plurality of members pivotally mounted adjacent to said element and being shiftable therewith, a plurality of shoulders on said element corresponding respectively with said members, parts adjacent to the upper and lower ends of said element embracing said members, other shoulders on said element located adjacent to said lower embracing member, means normally urging said members pivotally against said other shoulders and locating said members in po sition to be engaged by their respective said shoulders, said element being movable pivotally for causing said second mentioned shoulders to shift one or more of said members pivotally against the action of said means for retracting them from a position to be engaged by said first mentioned shoulders whereby said element may be longitudinally shifted independently thereof.

18. Control mechanism comprising a an operating element pivotally mounted thereon and longitudinally shiftable, a plurality of levers pivotally mounted on said frame, a plurality of members pivotally mounted on said levers and located in planes parallel to the planes of movement of said levers, a plurality of shoulders on said element, means acting between said members and said levers for normally urging said members into positions to be respectively engaged by said shoulders, other shoulders on said element adapted to be en gaged by said members for centering said element, said element being movable pivotally for causing said other shoulders to shift one or more of said members pivotally for retracting the same from a positionto be engaged by said'first mentioned shoulders, whereby said element may be shifted without shifting said members.

19. Control mechanism comprising a longitudinally shiftable operating element, a member shiftably mounted adjacent to said element and having a part thereof extending into position to be engaged by said element and shifted therewith, a lever mounted adjacent to said element and having a part thereof engaging said member whereby when said lever is operated said part will shift said member out of position to be engaged by said element.

20. Control mechanism comprising a longitudinally shiftable operating element, a member shiftably mounted adjacent to said element and having a part thereof extending into position to be engaged by said element and shifted therewith, an auxiliary lever mounted adjacent to said element, and a wedge operatively connected to said lever and adapted to be shifted thereby for engaging and retracting said member from a position to be engaged by said element.

Signed at Chicago this 29th day of March 1913.

JOHAN GUSTAV LUDWIG, BAUER.

Witnesses:

EDWIN PHELrs, M. IRENE HUTCHINGS.

Copies of this patent maybe obtained for five cents each, by addressing the Commissioner of Patents, Washington, D- 6-

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