US947495A - Feed mechanism for perforating-machines. - Google Patents

Description

G B KELLY & F L W001) FEED MECHANISM FOR PERFORATING MACHINES Patented Jan. 25, 1910. I I 2 811i: SHEET 1.

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G; B.-KELLY & r. L. WOOD. FEED MEGHANISM FOR PERIOBATING MACHINES.

" APPLICATION FILED 001. 27, 1908.

947,495. I Patented Jan. 25, 1910.

2 SHEETS-SHEET 2.

Lz/zt 5525 .zru sr-itzzzva W Azizzzza'v'ziy GEORGE 12. KELLY, or JAmAicA PLAIN, AND FREDERICK L, "woon. -1 woncn's'rnn;

- r --MASSAC1-IUSETT S. 1

Toall 'wlwm it"riiay concerns 1 I Be it, known that we, GEORGE B. KELLY and FREDERICK L;- \V0oo, citizens of. the

* United States, and residents of Jamaica.

Plain,tcounty of Suffolk, State of'Massachu'setts, and W'oroester, in the county of \Vorcester and State of Massachusetts, 21:0"-

spectively, have invented certain new anduseful Improvements in Feed Mechanism for. I *rforming-Machines, of which the fol lowing is a specification.

This invention relates to a paper feed mechanism for perforating machines such' for example as machines for making slotted music sheets.

' The object of our invention is to provide a;

new and improved .paper feed mechanism which 15 simple-1njconstructlon. holds the paper firmly, securely and reliably, does not any undue friction.v

' 50 offer undue resistance and does not produce In the accompanying drawings, in which like letters of reference indicate like parts in all the figures F1gure 1 1s a side view of our nnproved paper feed. mechanism, parts being omitted and others broken away. Fig.

2 is a front end view of the same, parts being omitted.

lwo endless chains 1, such as sprocket chains, are each passed over two sprocket wheels 2 and3 mounted on the shafts 4 and res ectively, which shafts are mounted in suita le standards (3. Cross bars 7 are lirmly secured at their ends to the links of the sprocket chains, the upper or outcr'faces of winch bars 7 form the supports for the superimposed layers of paper to be perforated. Each end of each bar 7 s embraced, adjacent to the point where t is attached to a chain by the forked end 9 of an angular clam )ing lever '10 pivoted to the bar at '11 and having extensions 12 forming cams on which the free ends of springs 13 hear, there being one spring attached to each sideof each bar 7 so that one spring bears 'on the f. J-e end edge part of each 'cam part -12 of the forked part 9. A clamping block 15 is pivoted at 16 to -each lev'er 10 and a spring 17 is provided, of which'one end bears on the clamping block 15 and the other on the lever 10. A stop pin- 18 prevents the spring 17 -from tilting.

, FEED MECHANISM l on rmtronarmemacmnes.

V v Specification of Letters Iltentl a plication filed October 27, 19051 Serial No. 45 9 soel3 per on the bars-7. and atthe bottom of ,2, the clamping blocks are-shown in the. p o

, sit-ions they have when they are swung down so as'to hang freely. m'lhe shaft 4 of the, 13;"

tated step by ste i froma pin projectiflg lln'oughout the whole surface-0f this loclr.

n; grinds- Patented ".J an; 25,191

sprocket wheel 2 carries worm wheel 19 '60 i engaged bya worm 20 on a shaft 21 carry-. ing' at its upperenda beveled pinion 22 e n-. gaging a beveled cogwheel 23 mounted Iii tegral with a Geneva wheel 24 which isirofroma disk 26 rivenby a belt27 from a,

suitable'niotor. I Adjacent to each sprocket wheel-2 and 3 are located the cams28 and 29 which are secured on the.,.standardsf6., 2.;-

in the direction indicated by the arrow and as the clamping-devices arrive a tthe cams 28 the upper. ends '30 oi thesecanis, engag ing theparts oivpro'jecti'ons d0 of the clamp; I ing levers 10, .throw the clanifing-devi'ces ls outward or'into the position siown at} thef bottom of Fig. 2' so' asjto-rel'ease the pape 8, in which position the-clamping ncansiare,

the end edges of the cam partsof the forked-die t ends of the levers 10.. The-clamping means are thus --di,sengaged fronrthe paper in, when the bars 7 begin to leave the horizontal plane to pass around the-wheels .21 The f clamping aneans .remain' in these positions ss while passing bet-ween the bottom parts of,v the sprocketwheels 2 and 3V and as the chainsqi rise the ed cs 33 of the levers 10 encounter --clam ping deviceupon the aper sons to me holdall the several layers 0 paper securely in place on the bfllS.S() that the paper moves along with the bars. The springs 17 merely serve for the purpose of causing theclamp-w ing blocks to adjust themselves to .give 5 an exact and even pressure onv the aper The s ring 17 is nmch weaker than spring 13 an the spring 17 only adjusts the block' 15 within the limits prescribed by the stop 1 0 pins 18, or mother wordsflhels'pring 17 merely keeps the clamping block in proper relation to the pivoted member and the clamping pressure of the block on the paper is produced by the sprin ,13. It will thus "be seen that the entire; ecdingdevice consists of a single pair of chains and cross bars and clamping devices supported on the cross bars. 4 v

' Having described our'invention what we claim as new and desire 'tosecure by Letters Patentis: I 1. In a paper feed mechanisimthe combination with two endless chains,- of sprocket wheels over which the chains pass, bars. un1t1n the cha ns, clamping devices hinged to'the ars at the ends thereof and cam, tor

alternately lifting the: clamping device's off the bars and applyin them on the paper on the bars, substantia ly as set forth.

In a paper feed mechanism, the combination wit-h two endlesschains, of sprocketwheels over which the chains pass, bars- I and s rings unitin the chains,tclamping devices hinged to the bars at the endsthereof and cams for alternately lifting the clamping devices off a and applying them on the paper on the bars,

on them, substantially as set forth.

3. In a' paper feed mechanism, the combination with two endless chains, of-sp'rocket wheels over which the chains pass, bars uniting the chains, clamping devices hinged to the bars at the ends thereof and cams for -alternately moving the clamping devices from the bars and mount them to the bars,

' tiallyas set forth;'

and springs attached to the bars and bearing on the clamping devices, to ,holdthem in place, and exert pressure on-them, substan-.

4. In a paper feed mechanism; the combi-- nationwith two endless chains, of wheels' over which the chains pass, bars uniting the chains, a clamping device' pivoted to each end of each bar and composed of a lever pivoted to'the bar, and. a clamping block pivoted toithe lever, and cams at the caring on the clamping devices to he (1 them in place andtoexertpressure 30 sprocket wheels for alternately raising and lowering the clamping devices, substantially as set forth. I i

5. In a paper feed mechanism, the combibar and bearing on the pivoted lever, and

- cams at the sprocket wheels ,for alternately raisrng'and lowerin the clamping devices, substantially as set orthp 6. In a paper feed mechanism, the combi 'nationwith two endless chains, of wheels over which the chains pass, bars uniting the. chains, a clamping device pivoted to each {end of "each-bar and composed of a lever pivoted to the bar, and a clamping block pivptedto the said lever, a spring secured to the bar and bearing on that end of the lever opposite, to the one to which the block is pivotedand means at the sprocket wheels -for alternately raising and lowering.

the clamping devices, substantially as set forth;

7. In a paperfeed mechanism, the combination with two endless chains, of sprocket wheels over-which the chains pass, bars uniting'thechains, aclamping device piv-' oted to each end oteach bar and composed of aforked lever embracing the bar, a clamping. block pivoted to the'lever, a spring interposed between the pivoted lever and the cla1nping=block,.and a-spring securedto the-bar and bearin on the edges of the forked part'of the ever, and cams at the .sproc'ket wheels for alternately raising and lowering the clamping devices, substantially as set forth. T

Signed this'21st day' of September A. D.

1908. .7 GEORGE B. KELLY. FREDERICK L. WOOD.

Witnesses:

GEORGE :KAY, v OSCAR G Nz.

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