US1664050A - Cigarette-machine cut-off - Google Patents

Description

March 27, 1928.

` T. c. sHEEHAN CIGARETTE MAcHINE cuir-OFF Filed Aug. 21. 1926 ATTORNEY y is provided two alternately acting Patented Mar. 27, ,1928.

THOMAS c. sannnnn, on Urrnnlxonmcnam, New JERSEY, AssIGNon ToAMEnIcA-N MACHINE a vornimmt aooJ/IPANLA CORPORATION? OF NEWJEBSEY.

,YCIGARETTEQMACH'INE four-Orr.

This invention relaties 'to an' nnproved"l cigarette machine cutoff, and it' 'fhas forlits main'k obj-ect the production fof la cutoff l for Y continuous rod 'cigarette machines which j dynamical-ly balanced to` enable it 4to loperaic and then specifically set forth in the claims hereunto appended.

In the accompanying drawings, in which like characters of reference indicate the same or like parts, Fig'. 1 is a side view of a knife forming a part of the invention; Fig. 2 is a side elevation, partly in section, of a cutoff constructed in accordance with the invention; Fig. 3 is an end elevation of the/knife holder shown in Fig. 2; Fig. 4 is a cross section taken on the line 4-4 in` Fig. 3; Fig. 5 is a side elevation, partly in section, of a modified form of knife holder; and Fig. 6 is an end elevation of the holder shown in Fig. 5. l

In carrying the invention into effect, there knives, a dynamically balanced holder forl said knives, and means wherebyv said knives may be adjusted and held at vdiametrically Vopposite positions in said holder without disturbing the dynamic balance of the cutoff.

In the best constructions contemplated, said means includes slides to which vthe knives are secured, and means for producing simultaneous and equal movements of'said slides and knives to take up knife wear. These parts may be varied in construction withinthe scope ofthe claims, for the specic structure selected to illustrate the invention is but one of numerous possible concrete embodiments of the same. The invention, therefore, is not to be restricted to the precise details of the structure shown and described.

Referring to the drawings: The vknife 7 .is a thin and easily manufactured wafer-like blade having parallel side' edges 8, and a segmental cutting edge 9 which has its centre v edges,ltlie rear "edge `11Vbeing a straight' line'` perpendicular:tofthe side edges-8. 'B y placing such asymmetrical 'knife eccentriv-v. .y

` cally rinthe holder, thesweep of the cutting edge, as shOWI-,ilby,thefdgttedlines 3, i 'will 'bel 'suchl as tofgradnally v cuit through circles 3 scribedbythfe twofeiidsi'of the cutting edge. l

The knives 7 are clamped to the'holder 14, Figs. 2 to 4, by means of clamps 15 set at the proper angle to obtain the required cutting range between the circles 13, 13. The clamps 15 are secured to the holder 14 by means of screws 16. The holder 14, whic is shaped symmetrically and dynamically balanced, is'secured to a driving shaft 17 by meansof awasher 18 'and nut 19, the latter having an annular groove 2O for lightness, and a flange 21Vfor shedding oil. A dished ring 22, placed behind the holder 14, keeps oil from the other side ofthe knives.

AY bracket 23, depending from a bearing 24, supports a carrier 25 for the ledger plates 26 throughv which the cigarette rod 12 passes to becut by the knives 7 ,the rodl 12 being y guided into the ledgerv plate tubes 26 by the Y bell mouth 27. y i

Referring particularly to Figs. 5 and 6, the holder consists of two discs 27 and 28 between which are clamped the slides 29 by means of a nut 19. TheseJ slides, to which the knives 7 are permanently fastened by l Yduring the entire life ofthe knives, and of similaiknives subsequently used. What is claimed is: f

1. In a cigarette machinecutolf, the combination with two alternately acting knives,

of a dynamicallybalanced holder for said knives, and means for` simultaneously `andy equally adjusting and holding said knives losy at diametrically opposite positions ,in said f holder without ydisturbing the dynamic balance of the cutoff.

2. In a cigarette machine cutoff, the combination with two alternately acting knives,

ol` a dynamically balanced holder for said means including ltwo slides one of which is.

attached to each knife,and means'for simultaneously and equally moving said slides.

3. In a cigarette machine cutoff, the com- Y bination with tw'o alternately acting knives,

of a' dynamically balanced holder for said knives, and meanswhereby said knives may .be adjusted and held at dametrically opposite positions in said holder without disturbing the dynamic balancer of the cutoff,

said means including two racks'on'e of vwhich is attached to each knife, and a pinionV engaging said racks and provided with a series oit holes whereby Iit may be turned.V i

4. In a'cigarette machine cutol'l', the combination with two alternately acting knives, of a dynamically balanced holder for said knives, and meansvfor simultaneously and equally adjusting and holding said knives at diametrically opposite positions vinlsaid holder without disturbing the dynamic :bal-l` ance of the cutol, eachof saidknives*beingV symmetrical inform but eccentrically posi' tioned in said holder. f

In testimony whereof, I havesligned my p35 name tothis specification.

Y '..DHOmS C. LS'HEEHAN

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