US936326A - Variable-speed driving mechanism. - Google Patents

Description

P. T. KENNY. VARIABLE SPEED DRIVING MECHANISM.

APPLIQATION FILED JULY 14, 1908,,

.- 93 ,326, Patented o'qt. 1 2,1909.

Z/VVE TOR;

To all ti lioni it may (Ollt'tIN-J I lie -it known that l. Run. "l. "KENNY; a

eitizeu'of thellnited States. residing in the borough of Manhattan. in the count). eitv. v 9 v i a and btate of hew \ork. have invented certain new andaisefulImprovements in Varis I able-Spou Driving Mechanism. of which the following 18.3 s ieeilieation. snehas will enable othersQsKi-ll in theart to which it t pertains tomake and use the same. The. object of my invention is to present a variable speed driving mechanism particularly' suitable'for printing presses. though "capable of other applications. .Ainong the objects is the avoidance of telescopic driving eonneetions; -and the invention, roughly outlined, consists in the combination with a driven gear, ofamotor' and a bone ofdriving gears. a'roek shaft sup 2o porting the motor and cone of gears, and an operating handle. for roekin and longitut inally shifting the, rook shatt with the s up-' ported motor and cone of gears. i 'Other features o'f the invention will become clear from the following specification and-'will be'specitied in the appended claims.

-' "l n the drawil igs, Figure l is a side view of a )rinting press provided with my variable "peed driving mechanism; Fig. 2 is a rear 3o.view of the same'.'the,top portion ofthe press being broken away: Fig.3 is an 'ew of ,the reverse side ofthe press from that shownin Fig. 1, the top part being hrokenhway,

as also the lower portion of the leverQG; Rig.

4 is arear view of the printing press, the motor, cone of driving gears, and operating members being omitted to'show the parts in froittyand Fig. 5 is a detail of the slotted bracketfor receiving the operating handle.

The reference letter A designates any suitable frame of the printing press. B the shaftof the fly wheel. C the tl v wheel. D inking niechanisnnand E the-platen. No etl'ort has been made to illustrate an operative press. The tl' v wheel C may be referred to as the driven gear; but it. is obvious that the driven gear need not be a fi v wheeh The letter I designates an electric motor. whose armature shaft 13 carries a cone of I driving gears 17. and preferably. also, an

extra pulley 18. The shaft 13 may be sus-, tained by journal arms 1* projecting upward. from a bracket 16 secured at its inner end to the motor-base. The base of the motor I is rigidly seeured to a supportiugroek shaft Specification-of Letters Patent. PatentedItch; Application filed m 14;1 90s; semi no.4'4spssoj l 19. 'wliieh is mounted in the frame. A.

This lower end of .the; bracket "ll'iis c on the bracket 29.

rotata and longitudinally shifting'the rook shaftTQ-is as follows: 21 is a bracket'li:ivii1gat,its lower end a squared opening in whieh isre-i -eeived a squared portion 24 of the shaft-19.

neeted pivotally with the outer side ofthe frame member A by curved slots 23 and b'olts the braeket- 21 on an axis perpendicular to the pivotal axis of the braeket 21," as 'at25,

. mg lever has universal oint eonnec tion' 'witlr the rock shaft 19, as at 28. The upper poi? tion of the operating lever or handle 26' is received in'slots 1.2, 3, or 4' of abra'cket \Vhen the lever rests in slot 1 the-largest '15" gear-0f the cone 17 1s in'posltion' to engage the fly wheel (1; .slots 2 and 0 correspond, with the i'uiddles1zed' and smallest 'gear'of the cone 1'2"; -Ot eourse.' there mav bez nore'" than three s eeds. if desired. Thebottom of the slotl 1s suflieiently' in advance of thebottoms of the other slots, so-that. when the handle 26 is inthis slot, the rh'otorT and the cone 1? are rocked so. that noneLof the driving gears can engagd, with the fiv'wheelfc.

A spring 20 (see' .beiutilized' as means for holdingthe' seven' lgears of the. cone 1;? in engagement with the flywheel and 'tlie handle 26 in the slots or notches of; i

The motor circuit is indicated at 61, 62, and may be broken by amovable contact-39, mounted in lever 30 and adapted to engage with the. stationary contacts 37 This lever" 30 is shown as pivoted intermediate its length. as at. 99. to one side of'the printing press frame, being provided at its outer end with a brake shoe 31 for engaging the fly wheel C and at its inner end with a link 32 pivoted at 33 and 34 to the lever 30 and the treadle or foot lever H,Irespectively. The

arrangement is'such'that depression of the t-readle' H breaks the motor eirenit and applies the, brake 31; the treadlegbeingnormally held elevated, as by a spring 40.

The furniture cutting saw L-, m ou nted .in conjunction with a. table G supported by a bracket F, and connected with the pulley 18, is an example 0f= 1nechan'isin that may be driven from this extra pulley, when the cone 110 of gears 17 is locked out of engagement with l' the driven Wheel 0. WVhen the motoris not i'op'efating, 'thewheel C, and therefore, the

prmting press may be driven by foot power. 5xjfrom the treadle H, by means of a rod 12 ithat may connect the treadle and a crank on the shaft B. Of course, when the rod or-link 12 is'connected between the treadle and the driven mechanism, the lever 30 will be distreadle H. Thesaw L may also be driven connected inany suitable fashion from the from the treadle H,'"-one of the cone of gears "17 being in engagement with the fly wheel G. Under such circumstances, the motor circuit will be open so that", the motor will not;

"act as a'brake. I i I Preferably-the. cone of'gears 17 and. the

wheel C constitute a friction drive,'bu t this.

; ;the combination of'a driven gear, a motor I 3- and a cone of driving gears, a longitudinally movable rock shaft supporting said motor "and cone of gears, and an operating handle of gears.

' and -a cone of driving gears, a longitudinally movable rock shaft supporting said motor.

need not always be the case.

What I claim. as newis:

1. In a variable speed driving mechanism,

for rocking and longitudinally shifting said "Frock shaft and the supported motor and cone I 2. In a variable speed driving mechanism,

the combination of a driven gear, a motor and cone of gears, an operating handle for rockingand longitudinally shifting said rock shaft and the supported motor and cone of gears, and a locking member with slots adapted to receive said handle.

- 3. Ina variable speed driving mechanism,

the combination of a driven gear, a motor,

1a cone of driving gears on the shaft thereof,

a nd anextra pulley also on the shaftof the motor, a'longitudinally movable rock shaft v supportingsaid motor and cone of gears, an

"operating handle for rocking and longitudinally shifting said rock shaft and the supported motor and cone of gears, and a'memthereof can; engage jthegdrivengear, so that the vmotors-may be disconnected from the her adapted to holdsaid handlejfyvit-h the cone of' "i such position ithat none' driven gear when it is desired to driveffroin the pulley alone. v

4. In a variable speed driving mechanism,

the combination ith a-supp'ortmg structure,

a cone of gears, and a gear adapted tobe engaged selectively therewith; of abracket pivoted to said supporting structure, a shaft slidablybut not rotatably mounted in said bracket at' the pivotal axis thereof said shaft supporting and carrying in its movements one of the above-mentioned gear parts, and 1 an operating lever pivotedto said bracket on an axis perpendicular tothe pivotal axis of the bracket, so astobe capable of rocking; the latter, and connected with said shaft so as to be capable of sliding the same in the bracket. v i

5. In a variable speed driving mechanism, the. combination with a driven gear, a treat 'dle, and driving connection between said treadle and the driven gear, of a motor and a cone of driving gears, a longitudinally movable rock shaft supporting said motor and cone of gears, an operating handle for rocking and longitudinally shifting said rock shaft and the supported motor and cone the county, city and State of New York,

this 6th day of December A.'D. 1907. I PAUL T. KENNY.

'Witnessesr- I OHAmlEs FREL OEHR, I R0M0LA GoRnoN.

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