US1727764A - Roving-feeding mechanism - Google Patents

Description

Sept. 10, 1929.

G.l E. GIBBS ROVING FEEDING MECHANISK v Filed Nov. 8. 192B' M d will Patented Sept. 10,` 1929.

UNITED STATES PATENT OFFICE.

GEORGE E. GIBBS, y0F .ATTLEBOVRQ MASSACHUSETTS, ASSIGNOR T0 AMERICAN RE- ENFORCED PAPER COMPANY, OFATTLEBORO, MASSACHUSETTS, A CORPORATION or MASSACHUSETTS.

ROVINGr-IFEEOING MECHANISM.

Application led November 8, 1928. Serial No. 318,062.

This invention rela-tes to improved mechanism for advancing rovings from bales or other sources of supply into parallel relation to form a sheet of rovings.

It is found that unspun iibres of long staple form excellent paper reenforcing strands, and mechanism has been proposed heretofore for adhesively securing a thin layer of long unspun fibres to a sheet of paper to reenforce the paper. In some cases the reenforcing fibres are applied'longitudinally of the sheet or sheets of paper to be reenforced as disclosed in the Howard and Sharp United States Patent N o. 1,565,009, dated December 8, 1925, while in other constructions the reenfo-rcing fibres are applied both longitudinally and transversely of the sheet or sheets of paper to be reenforced as disclosed in the Howard United States Patent Numbered 1,590,167, dated June 22, 1926. y

In each 0f the patents just mentioned the reenforcing fibres are supplied to the paper reenforcing machines in the form of rovings y that are laid side by side to form a sheet of fibres, which after being combed and ldrawn out is applied to? the adhesive covered sheet of paper to be reenforced.

The rovings are supplied in the form of bales to the paper reenforcing manufacturers and since a large number of rovings may be employed to reenforce a Wide sheet of paper and each roving bale is relatively large, the entire group of bales from which the rovings are drawn to the paper reenforcing machiney occupy considerable floor space. Much ditliculty has thereforebeenexperienced heretofore in devising a satisfactory construction whereby the rovings from the various bales or other sources of` supply maybe led inthe form yof a sheet to the paper reenforcing machine. f 4

The present invention therefore relates to improved mechanism for guiding a large number of rovings from bales or other ysources of supply into position to forma traveling sheet of rovings. tures of the present invention resides in spaced bars or rollers that are disposed above the sources of roving supplies to support the Jadvancing rovings that are drawn from One of the feaf the sources of supply, and another feature resides in guides associated with thesebars and adapted to guide the rovings side by side into the sheet forming relation.

Vhile the roving feeding mechanismk of the'present invention is designed `more. particularly for use in supplyinga sheet of rov n ings to a paperzreenforcing machine Lit obviously may be employed in various fields Where a relatively wide sheet of rovings is desired. g

The various features of the invention and novel combination of `parts will be best un-v derstood from' the following description when read in connection with ythev accompanyin g drawings.

In the drawings eoy Fig. 1 is a perspective view of amachine i constructed in accordance ywith the present invention; f i

Fig. 2 is a longitudinal sectional throughthe machine of Fig. l, and

Fig. 3 is a perspective view of a roving guide and its supporting bar. l

In the embodiment of the invention illustrated yin the drawings the roving supporting bars or rollers 10 are mounted upon the horiview zontally extending side rails 11 whichv rails f .i under the 4advancing rpull to which they are subjected.

The bars or rollers 10 may be ,journaled in the supporting brackets 13 for rotative movement, or if desired they kmay be nonrotatively supported. A greater pull necessarily will be required to advance the rovings over fixed bars rthan over rotating bars or rollers, but any tendency of the loose fibres'to wrap around the rotating barsfmay aor be prevented by mounting these bars so 'that alternate bars 10 as shown, and that each they will not rotate.

The rovings 15 are usually supplied to the user in the Yform of bales 16, and in accordance with the present invention these bales or other sources of roving supply may be placed upon the door of the building inV cientv floor space forV the vlarge number of' bales required to supply the ldesired number of rovings, these bales are preferably arranged in successive rows beneath the guide bars 10 throughout the length of the machine, as will be apparent from the drawing. The rovings supplied by a transversely f extending row of bales 16 are led upwardly about a bar 10 disposed vover suoli row of bales, and are then led forward over the series of bars lengthwise of the machine as kindicated by the arrow to form the sheet of rovings 17 shown at the front of the machine as extending downwardly through an opening 18 in the floor of the building.

It is necessary to guide the rovings as they pass upwardly around the guide bars 10 to direct them over the bars and lengthwise of the machine so that the rovings will form the desired sheet 17, and this is accomplished vin the construction shown` by .providing adjacent eachk barv or roller 10 ,r ing guide 19 is preferably such that a roving may be moved laterally. into and out .of en,V gagement with the guide, as will be appar-y ent from Fig. 3, wherein it will be Vseen that the guide is ing wings 24.

It will be apparent from the foregoing that several rovings 15 are led upwardly from their sources of supply over a guide bar` or roller 10 and then lengthwise ofthe roving feeding machine yover `and under the The individual rovings provided with the spaced guidl guide 19 may be adjusted lengthwise of its supporting bar to guide its particular roving lengthwise of the machine to forni the desired roving sheet 17.

The series of bars 10 are preferably sup ported a substantial distance from the licor of the building, as will be apparent from the drawing, in order to allow sufficient clearance space between the roving bales and guides 19 to permit the kinks or twists in the rovings that are drawn upwardly from the bales tostraighten out before these kinks or twists reach the guides.

rlhe roving feeding machine forming the subject matter of the present invention necessarily voccupies considerable floor space and it will therefore be found desirable in many cases to mount this machine upon the floor ofa building which is disposed above the paper reenforcing machine or other machine to which the sheet 17 of rovings may be fed, as this will secure a substantial saving in floor space adjacent the machine to which the sheet of rovings may be fed. Such arrangement is readily accomplished by drawing the sheetl? of rovings downwardly through an opening 18 in the floor. The sheet advancing means vemployed inthe present construction consists of a pair of rollers 25 and 26` `which ymay be disposed below the floor in .which the opening 18 is formed to receive the sheet of rovings therebetween, and one of these rollers may be driven by any suitable means such as a worm gear 27 which meshes with and is drivenby a worm 28 ymounted upon the driving shaft 29.

The reenforcing libres usually employed heretofore in reenforcingV paper have been of long staple such as secured from flax, sisal, hemp or the like, and it is found that if the bars or rollers` 10 engage the opposite faces of the sheet of rovings as shown, the untwist-ed rovings formed of these'long unspun libres may be pulled from the source of supply 16 through the guides 19 and over the Vvarious guide bars 10 without unduly attenuating the rovings, by merely driving the cooperating rollers 25, 26.

It will be seen from the foregoing that the roving feeding machine forming the subject matter of the present invention is simple in construction and that since the roving guides 19 are adjustable lengthwise of their supporting bars, these guides are readily adjusted to -direct kthe rovings lengthwise of the supporting structure as desired. Furthermore, since the guides 19 are only partially'closedythe rovings may be readily moved laterally into and out of engagement with a guide, thus simplifying the operation of placing therovings in the guides.

lVhat is claimed is f 1. A machine for assembling rovings of fibres side by .sideto form a fibrous sheet,

` chine over the spaced bars to form the desired sheet, and power driven means positioned to engage the sheet of rovings to pull the individual rovings from the source of supply over said bars.

2. A machine for assembling rovings of libres side by side to form a fibrous sheet, comprising a series of spaced rollers mounted in elevated relation to the floor above separate bales or other sources of roving supply7 to support the advancing rovings, guides for the individual rovings mounted adjacent the rollers for adjustment transversely of the machine to direct the rovings longitudinally of the machine over the rollers, and driven means positioned to engage the sheet of rovings and pull the individual rovings from the source of supply over the rollers.

3. A machine for assembling rovings of fibres side by side to form` a sheet, comprising a supporting frame, a series of bars mounted upon the frame in spaced relation to each other and at a substantial distance :from the floor to support rovings drawn upward from the ioor and over the bars, guides ad'justably mounted adjacent the bars for adjustment transversely of the machine to direct the rovings drawn over the bars into parallel relation to form the roving sheet, and power actuated means positioned to engage the sheet of rovings to pull the individual rovings from the source of supply over said bars.

4. A machine :tor assembling rovings of bres side by side to form a sheet, comprising a supporting frame, a series of bars mounted upon the frame in spaced relation to each other and at a substantial distance from the floor to support rovings drawn upward from the oor and over the bars, power actuated means adapted to engage and advance the sheet of rovings and thereby pull the individual rovings from their source of supply over said bars, and guides mounted adjacent the bars to direct the rovings drawn u wardly from the source of supply over t e bars to the sheet forming position and each guide being constructed so that a roving may be moved laterally into and out of engagement with the guide.

5. A machine for assembling rovings of long unspun fibres side by side to form a sheet, comprising a supporting frame, a series of bars mounted u on the frame in spaced relation to each ot er and at a substantial distance from the fioor to support rovings drawn upward from the floor over the bars, poweractuated means for pulling i the rovings from the sourceof supply over the bars lengthwise of the machine, guides mounted adjacent the bars and adjustable lengthwise thereof to direct the rovings drawn upwardly from the sourceof supply to the sheet forming position, and each gui de having an entrance opening through which the rovings can be moved laterally into the guide.

Inytestimony whereof, I have signed my name n to this specication.

GEORGE E. GIBBS.

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