US1371349A - Napkin-folding machine - Google Patents

Description

B. F. BROWNLOW.

NAPKIN FOLDING MACHINE.

APPLICATION FILED MAY 71 I919.

Patented Mar. 15, 1921.

2 INVENTOR Y I fifTB/mmuom I v v BY F75. ATTORNEYS into UNITED STATES BENJAMIN F. BROWNLOW, OF PORTLAND, OREGON.

NAPKm-FOLDING MACHINE.

Specification of Letters Patent.

Patented Mar. 15, 1921.

Application filed May 1, 1919. Serial No. 295,309.

To all whom it concem:

Be it known that I, BENJAMIN FRANKLIN BnoWNnow, a citizen of the United States,

I attain these objects with the mechanism.

illustrated in the accompanying drawing in which- Figure I is a plan view of the paratus,

Fig. 11 is a section of Fig. I along the line aa, 1

Fig. HI line 6-?) Fig. IV represents a piece of paper or cloth before entering the machine with the folding edge shown in dotted lines, and

Fig. V illustrates on a somewhat larger scale the appearance of Fi IV after havemerged from the mac e.

imilar numerals refer to similar parts throughout the several views.

A single piece ofsheet metal is wound spirally into a truncated cone 1 so that a double-walled housing is produced. This cone 1 is laid on its side on a table 2 and fastened thereto by suitable flanges 3.

A carrier belt 4 proceeds within the double walls from the base toward the vertex, and a. na kin 5 inserted with one corner between carrier belt and the inner wall 6 will emerge as a irall shaped cone to be flattened out ig. by the two rollers 7 and 8. After passing said two rollers the folded entire api. a section of Fig. I along the napkin slides down the inclined apron 9 into a suitable storage receptacle 10.

At the tail end the carrier belt 4 is supported by pulley 11 shaft 11 and bearings 12, at the head end by pulley 13*, shaft 13 and bearings 14. Shaft 13 may be driven by pulley 15 from a motor (not shown),

and the roller 7 is driven from the shaft 13 by means of a chain or belt 16. Gear 17 im arts rotation from the roller 7 to roller 8.

aving described my invention it will be seen that my objects have been accomplished and, thoug I have shown the preferred form of construction, I reserve to myself the right to make minor changes, providing I do not violate the spirit and principle of my invention.

I claim:

1. In a napkin folding machine, the combination of a supporting table, a housing'in the shape of a truncated cone lying with its side on the table,-a carrier belt passing through the-housin from the base toward the apex, a pair 0 "horizontal rolls at the apex ofthe conical housing, an inclined apron adjacent tothe rolls, and a receptacle adjacent to the apron, the whole device adapted to roll a sheet of paper into a cone, flatten the cone and deposit it into the receptacle, substantially as, and for the purpose set forth.

2. In a napln'n folding machine, the combination of a supporting table, a truncated cone lying with its side on the table, said cone being a metal strip spirally wound into a double walled housing, a carrier belt secured below the table, the upper run of said beltpassing between the double walls of said housing, adapted to carry a sheet of paper cornerwise through the housing and transform it into a cone, and a pair of horizontal rolls disposed at the apex of the cone to flatten the paper cone, "substantially as, and for the purpose set forth.

3. In a napkin folding machine, the combination of a supportin table, .a truncated cone formed of a spira y. wound strip of metal lying with its side on the table, said spirals forming a double walled housing, with a carrier belt passing between the double walls of said housing from the base toward the apex, and a pair of horizontal rolls disposed at the apex of the cone, revolving at the same circumferential velocity as the carrier belt, and adapted to flatten a cloth or paper cone emerging from the housing, substantially as, and or the purpose set forth.

B. r. BROWNLQW.

Images