US2966012A

US2966012A - Abrading machines

Info

Publication number: US2966012A
Application number: US667855A
Authority: US
Inventors: Fleming John Stuart
Original assignee: Individual
Current assignee: Individual
Priority date: 1957-06-25
Filing date: 1957-06-25
Publication date: 1960-12-27
Anticipated expiration: 1977-12-27

Description

Dec. 27, 1960 J. S.-FLEMING ,96 1

ABRADING MACHINES Filed June 25, 1957 2 Sheets-Sheet 1 Dec. 27, 1960 J. 5. FLEMING 2,966,012

ABRADING MACHINES Filed June 25, 1957 2 Sheets-Sheet 2 7a e i BY 20W fh,-Gl l \3Uvm,

ATTORNEY United States Patent nice 2,966,012 Patented Dec. 27, 1960 ABRADING MACHINES John Stuart Fleming, 117 Bulfalo Ave., Niagara Falls, NY.

Filed June 25, 1957, Ser. No. 667,855

2 Claims. (Cl. 51-78) The invention relates to abrading machines for making articles from a work sheet, a primary object being to provide an abrading machine for making the paper blank having the fold lines of the Fleming patent for Manicure Tool, No. 2,711,747, dated June 28, 1955, and for making a dental cleaner of any suitable pattern having the soft self-cushioned edge of the Fleming Patent No. 2,771,084, dated November 20, 1956.

Referring to the first named patent, the paper blank for the manicure tool can be cut from a sheet of flexible paper and its subdivisions folded upon fold lines thereof upon one another to bring them close together by a manual operation, but the process is slow and said subdivisions are with difliculty folded upon one another to bring them close together. An object of the invention is to provide an abrading machine for rapidly making said blank singly or in multiple by abrading the peripheral outline of said blank in and completely through and disconnecting said blank from said paper work sheet and simultaneously abrading said lines in and incompletely through the work sheet in intaglio, upon which abraded fold lines said subdivisions may be folded upon one another to bring them close together Wih no difiiculty.

Referring to the second named patent, a strip of flexible paper can be torn from and along a weakened tear line of a sheet of said paper by careful manipulation in such manner as to provide said strip with a soft selfcushioned edge extending along it as a border, but the process is slow and the tear tends to depart from the tear line. An object of the invention is to provide an abrading machine for rapidly making paper blanks having weakened lines defining subdivisions thereof by abrading the peripheral outlines of said blanks in and completely through and disconnecting said blanks from a paper work sheet, and simultaneously abrading said lines in and incompletely through the work sheet in intaglio to define dental cleaner strips of any suitable pattern, along which abraded tear lines said strips may be torn from said sheet with no tendency to depart from the tear lines, thereby providing each of said strips with the soft self-cushioned edge of the second named patent.

Another object is to provide an abrading machine for rapidly making a dental cleaner strip having a soft selfcushioned edge extending entirely around it as a border, singly or in multiple, by abrading the peripheral outline of said strip having said soft edge in and completely through said work sheet.

Other objects and advantages will appear hereinafter or will be obvious.

The invention consists in the novel construction and combination of parts as hereinafter set forth in the claims.

In the accompanying drawings,

Figure 1 is a diagrammatic end view of the machine, with one of the side plates of the fixed frame removed, showing the paper sheet, the raised pattern, and details of the raised pattern of varying cross sectional contours.

Figure 2 is a diagrammatic side view of the two cylinders, partly broken away and on a much enlarged scale,

showing the paper sheet in section, and details of the raised pattern of varying cross sectional contours.

Figure 3 is a diagrammatic sectional view of the paper sheet as in Fig. 2, having abraded therein details of the duplicates of the raised pattern of varying cross sectional contours.

Figure 4 is a plan view of the paper blank for the manicure tool.

Figure 4a is an edge View of the same.

Figure 5 is a plan view of the quadrilateral sheet.

Figure 5a is an edge view of the same.

Figure 6 is a plan view of the dental cleaner strip.

Figure 6a is an edge view of the same.

Figure 7 is a section on the line 77, Fig. 7a.

Figure 7a is a detail fragmentary plan view on a much enlarged scale of a fragment of the paper having the soft edge abraded therein.

In the drawings 1 designates a fast rotating abrading cylinder and 2 a slowly rotating impression cylinder parallel thereto, said impression cylinder having upon its cylindrical face the raised pattern 3 in cameo of a specific article to be made, such for example as the pattern of the paper blank 4 having the fold lines 4 of the first named patent, said cylinders being spaced apart from each other by a distance greater than the thickness of the paper work sheet fed between said cylinders.

The two cylinders are arranged so that they are just clear of touching at the highest point or top of said pattern, said cylinders being rotated as stated and the thin flexible paper or work sheet A fed between the cylinders,

thereby causing said pattern to force the paper against the abrading cylinder and abrading the peripheral outline of said blank and said fold lines in the paper work sheet A, the depth of the abrasion in the work sheet being determined by the thickness of said pattern. The abrasion in the work sheet starts as said pattern presses or forces the work sheet against the abrading cylinder and proceeds downwardly, so that the highest point or top of the pattern determines the lowest point of the abrasion in the work sheet. 5, 5, designate guide rollers for the work sheet A. The peripheral outline of said blank is abraded in and completely through and said blank disconnected from the work sheet. The fold lines 4' of said blank 4 are abraded in and incompletely through the work sheet in intaglio, thereby making said paper blank upon the abraded fold lines of which its subdivisions can be folded upon one another to bring them close together with no difficulty. The abrading cylinder may be substituted by a cylindrical pulley for an abrading belt. Abrading belts of varying degrees of fineness or coarseness to accord with the character of the work to be done are readily obtainable.

The pattern of the peripheral outline of said blank is continuous along said outline circumferentially of the impression cylinder and adapted to force the work sheet continuously against and in non-slip engagement with the abrading cylinder during said abrasion.

Referring to Fig. 5, wherein said pattern 3 is that of a quadrilateral sheet of flexible paper having the soft self-cushioned edge 6 of the second named patent, said soft edge being beveled and having the pulp of said paper exposed upon one side 6' thereof, and having weakened tear lines '7 defining dental cleaner strips 8, the peripheral outline of said blank having said soft edge is abraded in and completely through and said blank disconnected from the work sheet, said weakened tear lines being simultaneously abraded in and incompletely through the work sheet in intaglio, thereby making a paper blank having said soft cushioned edge 6 and weakened tear lines 7 defining dental cleaner strips 8, along which abraded tear lines said dental cleaner strips may be torn from said blank with no tendency to depart from the tear lines.

Referring to Fig. 6, wherein said pattern 3 is that of a dental cleaner strip 9 of flexible paper having a peripheral soft edge 9', the peripheral soft edge is abraded in and completely through said paper, thereby making a dental cleaner strip having a peripheral soft edge.

The cross sectional contour of the peripheral outline of said pattern determines the cross sectional contour of the corresponding abrasion in the work sheet, as shown in Fig. 2.

The abrading cylinder and the impression cylinder are rotated at any suitable respectively fast and slow speeds, to accomplish the stated results. The work sheet may consist of paper or any other suitable material. The pattern 3 may be acid etched in a sheet of thin flexible metal bent around and suitably secured to the impression cylinder to rotate therewith.

The right is reserved to modifications coming within the scope of the claims.

I claim:

1. In an abrading machine for making a paper blank having weakened lines defining subdivisions thereof from a work sheet, means for abrading the peripheral outline of said blank in and completely through and disconnecting said blank from the work sheet and simultaneously abrading said lines in and incompletely through the work sheet, comprising a fast rotating abrading cylinder and a slowly rotating impression cylinder parallel thereto, said impression cylinder having upon its cylindrical face in relief and concentric therewith the pattern of the peripheral outline of said blank and the pattern of said lines, the pattern of said lines being of less height than that of said outline, said cylinders being spaced apart by a distance greater than the thickness of the work sheet fed between said cylinders over and in engagement with the outer extremity of the pattern of said outline, the patterns of said outline and said lines being continuous circumferentially of the impression cylinder and adapted to force the Work sheet continuously against and in non-slip engagement with the abrading cylinder during said abrasion.

2. An abrading machine as defined in claim 1, in which the pattern of said outline has a beveled cross sectional contour adapted to abrade in and completely through the work sheet along the periphery of said blank a soft cushioned bordering edge beveled upon one side thereof.

References Cited in the file of this patent UNITED STATES PATENTS 404,582 Wheeler June 4, 1889 1,648,040 Bliss Nov. 8, 1927 1,838,116 Shuhan Dec. 29, 1931 2,218,674 Eaton Oct. 22, 1940 2,801,501 Marogg Aug. 6, 1957