US947629A - Barrel-forming machine. - Google Patents

Description

E. P. EVERBTT @L G. W. NORTON.

BARREL FORMING MACHINE. APPLICATION FILED JULY 12. 1907.

Patented Jan. 25, 1910.

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V//TA/ESSES MAM E. P. .EVERETT G. W. NORTON.

BARREL FORMING MACHINE.

APPLICATION FILED JULY 12. 1907.

Patented Jan. 25, 1910.

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lftlftlltELFORMINGr MACHINE.

dpecicaton of Letters Patent. @attempted difatti, 25 ftfllllltll.,

Application tiled .'l'uly 12, 1907. Serial No. tldt't i To all whom it may concern.'

lie it known that we, ERNEST P. Evnnn'rr and Gnoizon W. Noirion, both citizens of the United States, and residents of New York, Long llsland City, itstoria, borough of Queens, inthe county of Queens and tltate of New Yorlr, have invented a new and vimproved Barrel-Forming Machine, of which the following is a full, clear, and eX- act description.

@or invention relates to the manufacture of barrels and especially to barrels s uch as special form particularly adapting them for forming the bilge or curvature, and the rolls are constructed and arranged in sucha way that the velocity of the faces of the rails on pppositc sides of the web atany particular point is the same.

The invention consists in the construction and combination ofparts to be more fullyI described hereinafter and forth in the claims.

Reference is to be had to the accompanydrawings forming a part Vof this specifi` cation, in which similar. characters of reference indicate corresponding parts in all the particularly set figures.

lliv'gure 1 is a side elevation showing diagraminatically the rolls by means r of which the material is formed; lfig. 2 is a' front elevation of the rolls shown in lFig. 1; Fig. 3 is a cross section showing the form of the web when treated with our rolls; lFig. l is a longitudinal central section through a bar! rel which may be formed With our machine; and lt1 ig. 5 is a longitudinal section through a barrel of modified construct-ion, but which is also made according to this process.

Before proceeding to a detailed description of the process and the steps by means of which it is practiced, it will facilitate the disclosure of the invention to state at the outset that, in the manufacture of paper or pulp webs, great difficulty has been experienced in the operation of machinery for dis-A tending or bilging the web. Attempts to accomplish this end have generally resulted in tearing or rupturing the web at the point or line where the bilge is to be formed.` lin practicing the process, We employ' rolls having a special form, which enable the middle portion of the web to be bilged or bellied without rupturing ortearing. The finished web of paper or pulp having a bilge as de scribed, is admirably adapted for forming barrels because when formed into a roll, the bilge of the paper becomesthe bilge of the barrel or cash?. i

Referring more particularly to the parts,

and especially to Figs. 1 and 2, 1 represents a` frame upon which a plurality of guide rolls Q are provided, which receive the web 3 from the paper machine. rlhese rolls 2 are adapted to be .driven continuously in a forward direction by means of the gear wheels l1 which are continuously driven, and which'mesh with gear wheels 5 carried by the shafts of the rolls 2. At the end oppo siteto the rolls 2, the frame 1 is formed with several arches oi bows 6. ln these arches the forming rolls 7 are supported. The arches are three i'n number, the one adjacent to the roll 2 being represented by the numeral 6a, the next oneby the numeral 6b and the upper one by the numeral 6. rlhe rolls 7 are arrangeddn sets-V carried respectively on the bows G. The arrangement of each of .these sets of rolls isV indicated in Fig 2. Each set comprises a main roll v2. Cooperating with each of the main rolls 8, we provide resser rolls 11 and 12. The rolls ES have bi ged or convex faces and the rolls l1 and 12 have concave faces. rlFhe con titi titl

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cave faces of the rolls 111 and l2 are held substantially'against the faces of the rolls hows 6 have the least curvature, while those carried in the bovvs 6 have the greatest curvature. The rolls carried in the intervner illustrated in Fig. 1. In this way the wet pulp as it passes over the rolls, is subjected to a stretching and pressing action. In order to prevent any tendency for the rolls. to tear the pulp, we construct the rolls so that the .peripheral speed of the presser rolls and they main rolls at any one point substantially is the same,' as is illustrated in Fig. 2, where the diameters are indicated by the lines a and b running from a common point on the main roll and one ot the presser rolls. lVe make the diameter a equal to the diameter It the diameters a and b were maintained exactly equal to each other at all points of the surface of the rolls, the meeting faces of the rolls would be straight lines and the rolls would be of conical form. The meeting line between the two cylinders would .then bisect the angle between the axes of the convex cylinder and the corresponding convex cylinder. By varying the diameters a; and b slightly from anexact equality we are enabled to give the cylinders a slightly curved meeting line which has the general direction of and substantially conforms in position to the straight line bisecting the angle between the axes ot the cylinders. In this way it will be evident that there substantially no sliding or friction between the web and either of the rolls. As a result of passing the web through the rolls, it becomes bileed so that its cross section will have the term represented in Fig. 3; that is, it is stretched, bulged or bilged toward its middle line.

In order to dry the pulp web as it is passing through the forming rolls, we provide steam pipe connections 15 which enable steam to be directed through the rolls in such a way thatthey are maintained highly heated.

The main rolls 8 are provided near their ends with grooves 16 which produce the croze -of the barrel. In forming a barrel from' the iinished dried web, a sheet is cut ini-the web and is simply formed into a roll, the longitudinal meetlng edges of the sheet out of which the barrel is formed, being simply l. ped and riveted or batted together and) riveted to a butt strip. In this way a barrel 17 may be formed, as indicated in Fig. 4. The inner side of the body 18 of the barrel will have a croze 19 which facilitates the fastening of the heads 20 in the barrel as shown.

Instead of making the barrel as illustrated in Fig. 4, we may form the body ot the barrel by wrapping the bilgcd paper upon itself so that the barrel presents a plurality of layers 21 when viewed in section as in Fig. 5. In this form of the barrel, the heads are formed with annular grooves 25 which receive the ends of the body, and

rotation inclined with respect to the axis of rotation of said convex roller.

In testimony whereof we have signed our names to this specification in the presence ot' two subscribing witnesses.

ERNEST P. EVERETT. GEORGE W. NORTON.

lVitnesses F. D. AMMEN, JOHN P. Davis.

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