US1328253A - Printing-press - Google Patents

Description

Patented Jan. 20,1920.

2 SHEETSSHEET QM a R. ADAMS.

PRINTING PRESS.

APPLICATION FlLED APR-7,1916.

Patented Jan. 20, 1920.

I @MMo/W REED ADAMS, or LAIPEEB, MICHIGAN.

rninrme-rnn'ss.

Application filed April '7, 1916. Serial 110.8%),519.

To all whom z tmay concern Be it known that'I, REED ADAMS, a citizen of the United States, residing-at Lapeer,

. following to be a full, clear, and exactde-f county of Lapeer, State of Michigan, have invented a certain new and useful Improvement in Printing-Presses, and declare the scription of the same, such as will enable others skilled in the art to which 1t per tains to make and use the same, reference being bad to the 'accompanyin drawings, which form a part of this speci cation.

This invention relates to printing presses, and has for its object a special control for regulating the operation of small presses. This control comprises a treadle-operated clutch and brake, and the use of a supplemental treadle at the side of the machine so that an operator who is changing the type form at the side is not required to have an assistant when automatic feeders are employed.

In the drawings,

Figure 1 is a side elevation of a Gordon press showing my attachments in place.

Fig. 2 is a front elevation of the skeleton of the press showing the gears, shafts and the control.

I Fig. 3 is a horizontal section throu h a part of the bottom of the press frame s owing the arrangement of the treadles.

It is the object of this invention to stop and start the press very quickly and to eliminate the movement of the press parts by momentum after the power has been disconnected. This press is designed for work which requires frequent change of some of the printing matter, as changing the addresses in a stock letter, and consequently it is desirable to stop and start'the press as quickly as possible so as to lose'no time.

To this end I employ a driving shaft o provided with the balance wheel I) and having the male clutch part c splined thereon.

d is the female part of the clutch secured to the hub e of the driving pinion f that meshes with the driven gear 9 which operates the movable parts of the machine. This driven gear is fast to a shaft h which has on its opposite end a braking drum i. A treadle j is pivoted to the base of the machine and provided with a pedal is in front of the machine. The bent link Z connects with the pivoted bell crank lever mwhich has a pair of forks n on its endengaging the pins 0 on opposite sides of the end of the shifting sleeve 79. This shifting sleevehas at the opposite end, a shifting fork-q which engages the annular race 1' of the male clutch part. Ordinarily the strongspring 5 holds the treadle up .and the clutch parts disengaged. However, when thetreadlefl is depr ssed through the nn ction already e hemal lutc par is sh fted into eng gement ththe fema eclu cllipart an power transmitted from the drive shaft a Specification of Letters Patent. Patented an, 20,

to the ClIlVlllg' pinion and to the moving I parts of the machine.

The brake drum i is encompassed by a braking strap t fastened to one end of the lever M which is pivoted to the front of the frame. Consequently when the right hand end of this lever is up, the left hand end is down, and the braking strap is pulled. I

down over the drum '5. When the pedal is up and the clutch parts disen 'aged, this strap is kept pulled down over t e'drum by reason of the spring 3 which pulls the pedal up for the right hand end of the lever to is connected with the treadle by a connecting rod '0.

It is evidentthat the press only operates when the pedal is depressed, which serves to release the brake strap t and engage the clutch parts, thereby throwing on the power. Immediately when the treadle is released, the spring 8 pulls it back to place, applies the brake strap 2? and disengages the clutch parts, thereby disengaging the power and avoiding continuance of the movement of the press parts by momentum.

At the bottom of the press on the legs I journal a cross shaft w, which at the left hand end of the press is provided with a treadle w. This cross shaft w, is provided with a pair of strikers y adapted to engage two armsof the treadle so that when the side treadle m is operated, the main treadle 7c is operated to effect the engagement or disengagement of the power and the braking operations. This auxiliary pedal allows the operation of the press by one opcarrying parts of the press and have but litsmall inertia adapted to actuate one of said parts and located mechanically adjacent thereto," a brake adapted to' act on said 'actuating mechanism, a driving mechanism for said press, and means for disconnecting said driving mechanism from said form-actuating mechanism and applying. the brake to the latter and for connecting-said driving mechanism therewith and releasing said brake. I

2. The combination with a press, of driving connections therefor provided with a disconnectible connection, a brake for the a moving parts of the press, a treadle provided with suitable connections for establishing the disconnectible connection and simultaneously applyingthe brake, the said ing connections there-for provided with a disconnectible connection, a brake for the moving parts of the press, a treadle provided with suitable connections for establishing the disconnectible connections .and simultaneously applying the brake, saidtreadlewbe i ing located in front of the machine, and an auxiliary treadle provided with strikers by which the connections to the front treadle may be operated but which side treadle is not moved when the front treadle is actuated. a

In testimony whereof, I sign this specification.

REED ,ADAMS'.

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