US1543917A

US1543917A - Automatic cutter for cutting a tubular gauze covering for sanitary napkins

Info

Publication number: US1543917A
Application number: US718416A
Authority: US
Inventors: Christopher G Guignard
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-06-06
Filing date: 1924-06-06
Publication date: 1925-06-30
Anticipated expiration: 1942-06-30

Description

June 30, 1925.

C. G. G UIGNARD AUTOMATIC CUTTER FOR CUTTING A TUBULAR GAUZE COVERING FOR SANITARY NAfKINS Filed June 6. 1924 2 Sheets-shat 1 June 30, 1925. 1,543,917

c. G. GUIGNARD KUTOMATIC CUTTER FOR CUTTING A TUBULAR GAUZE COVERING FOR SANITARY NAPKINS Fil ed June 6. 1924 2 Sheets-Sheet 2 Patented June 30, 1925.

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CHRISTOPHERG GUIGNARD, OF COLUMBIA. SOUTH CAROLINA.

AUTOMATIC CUTTER- FDR CUTTING Application filed June 6, 7

T all whom it may concern:

Be it known that I, CHRISTOPHER G. GUIGNARD, a citizen of the United States, residing at Columbia, in the county of Richland and State of South Carolina, have invented a new and useful Automatic Cutter for Cutting a Tubular Gauze Covering for Sanitary Napkins, of which the following is a specification.

The object of my invention is to provide an automatic cutter which is provided with a novel resilient operating mechanism whereby the cutting knife will remain in a retracted position when a knot or other obstruction is encountered so that there will be no possibility of choking the knife with the material as may occur with a revolving type of knife. It is also my object to provide the novel combination and arrange ment of parts disclosed in the accompanying drawings, in which- Figure 1 is a side elevation of the invention in use;

Fig. 2 is a top plan of my invention;

Fig. 3 is a section on line 83 of Fig. 1;

Fig. 4.- is a section on line 44 of Fig. 2;

Fig. 5 is an enlarged detail of a modified form of cam; and

Fig. 6 is an edge or face view of the mechanism illustrated in Fig. 5.

Like characters of reference indicate like parts in each of the several views.

Referring to the accompanying drawings I provide a table or supporting frame 1 havinga top 2 and an apron 3, as shown in Fig. 1. I provide bearings 4c for the horizontal shaft 5 which is driven by chain C from a suitable source of power, such as the severing machine described in a co-pending application Serial 718,415 filed June 6, 1924. I provide a pedestal 7 carrying a hinged or oscillatory bearing 9 in which the shaft 10 is mounted. I also provide a pedestal 8 carrying upright standards 12 and provide springs 13 which press on the bearing 11 in which the shaft 10 is mounted to normally press the rubber-covered friction roller 14: toward the bottom friction roller 6 mounted on shaft 5. I provide a gear 16 on shaft/17, as shown in Figs. 1 and 2, which gear meshes with gear on shaft 5 whereby rotary motion is transmitted from shaft 5 to shaft 17 which latter shaft also carries the A TUBULAR GAUZE COVERING FOR SANITARY NAPKINS.

1924. Serial No. 718,416.

cam 18. Cam 18 contacts with roller 19 mounted in the bifurcated end 20 of the slidable rod 21 which is mounted in the sleeve 22 and is resiliently pressed towards cam 18 by the spring 25 within sleeve 22. Sleeve 22 is provided with a closed end 24 and a bifurcated extension 23 which is pivotally connected to knife 28 by pivot 27. Sleeve 22 is slidably mounted in bearing 26.

Knife 28 is fulcruuied on pivot 29, as shown knitted fabric which is drawn through the interior of tube T by the friction wheels 1% and 6, as shown in Fig. 1 and is fed over the guide plate or platform and over knife edge 80. I may provide a modified cam 38 as shown in Fig. 5 which is provided with the

opposite projections

39 and 40.

In operation, in the event of a knot, obstruction, or one of the strips of cotton or napkins ends comes under the knife 28 at the time it operates, a spring 25 in sleeve 22 will allow the rod 21 to travel its full stroke without forcing the knife blade into the material, thereby allowing the knife blade to swing to its uppermost position as soon as the cam projection has passed the roller 19 and thus allow the knot or other obstruction'in the material to pass on and the knife will not be again operated until the cam has again rotated to operating position. This operation automatically protects the inaterial and prevents choking of the knife. Less attention on the part of the operator is required and stoppage of the machine is not required for disengaging material from the knife when knots or obstructions occur in the material.

What I claim is:

In an automatic cutter for cutting tubular gauze covering for sanitary napkins, the combination of a knife-edge, a knife ful- 0f the knife to normally hold the knife in v open positionycam controlled means adapt spring Bw: Y 7 1,543,917

crumed on one end of said knife-edge and said cam, a rod connected to the hub of said adapted to Cooperate therewith to cut the cam, a sleeve in which the rod is slidably material a spring connectedwiththe shank mounted, said sleeve being oper atively con- 0 nected to the shank of th'e' k'nife, and a contained Within the sleeve and beared to move the knife to a closed position at ing on the end of the slidable rod. regular intervals, 1), 0&111,"L roller riding on CHRISTOPHER GUIGNARD.