Shoe for a compactor and for avoiding heat deformation thereof

Abstract

An improved compactor shoe of the type having a gull-wing shape formed by a first wing and a second wing that meet at a critical lower edge, and a top surface. The first wing has a first radius of curvature and the second wing has a second radius of curvature, and both depend concavingly from the top surface to the critical lower edge. The first radius of curvature of the first wing is less than the second radius of curvature of the second wing. The improvement includes a through bore extending axially through the shoe, which carries a coolant to avoid heat deformation of the critical lower edge.

Claims

1. An improved compactor shoe of the type having a gull-wing shape formed by a first wing and a second wing that meet at a critical lower edge, and a top surface with a channel, wherein the first wing has a first radius of curvature and the second wing has a second radius of curvature, wherein the first wing and the second wing depend concavingly from the top surface to the critical lower edge, and wherein the first radius of curvature of the first wing is less than the second radius of curvature of the second wing, said improvement comprising: a) a coolant; and b) a through bore; said through bore extending through said shoe; said through bore carries said coolant for avoiding heat deformation of the critical lower edge of the shoe; and said through bore of the shoe being disposed midway between the first radius of curvature of the first wing and the second radius of curvature of the second wing and being offset from an imaginary line drawn from the critical lower edge perpendicular to the channel.

2. The improved compactor shoe of claim 1, wherein said improvement further comprises said through bore of said shoe extending axially therethrough.

3. The improved compactor shoe of claim 1, wherein said improvement further comprises said through bore of said shoe extending completely therethrough.

4. The improved compactor shoe of claim 1, wherein said improvement further comprises said through bore of said shoe being disposed between the channel of the top surface of said shoe and the critical lower edge of said shoe.

5. The improved compactor shoe of claim 1, wherein said improvement further comprises said through bore of said shoe being disposed in proximity to the critical lower edge of said shoe to carry said coolant for avoiding heat deformation of the critical lower edge.

6. The improved compactor shoe of claim 1, wherein said improvement further comprises said through bore of said shoe being cylindrically shaped to provide a smooth flow of said coolant.

7. A shoe for a compactor, comprising: a) a gull-wing shape formed by a first wing and a second wing that meet at a critical lower edge; b) a top surface with a channel; c) a through bore; and d) a coolant; wherein said through bore extends through said shoe; wherein said through bore carries said coolant for avoiding heat deformation of said critical lower edge; and wherein said through bore of said shoe is disposed midway between a first radius of curvature of said first wing and a second radius of curvature of said second wing and is offset from an imaginary line drawn from said critical lower edge perpendicular to the channel.

8. The shoe of claim 7, wherein said through bore extends axially through said shoe.

9. The shoe of claim 7, wherein said through bore extends completely through said shoe.

10. The shoe of claim 7, wherein said through bore is disposed between said channel of said top surface and said critical lower edge.

11. The shoe of claim 7, wherein said through bore is disposed in proximity to said critical lower edge to carry said coolant for avoiding heat deformation of said critical lower edge.

12. The shoe of claim 7, wherein said through bore is cylindrically shaped to provide a smooth flow of said coolant.

13. The shoe of claim 7, further comprising an entire length; wherein said top surface has: a) a pair of ends; and b) a center.

14. The shoe of claim 7, wherein said first radius of curvature of said first wing is less than said second radius of curvature of said second wing.

15. The shoe of claim 13, wherein said first wing and said second wing depend concavingly from said pair of ends of said top surface, respectively, to said critical lower edge.

16. The shoe of claim 13, wherein said channel of said top surface is disposed at said center of said top surface.

17. The shoe of claim 7, wherein said channel of said top surface is rectilinear-shaped.

18. The shoe of claim 13, wherein said channel of said top surface extends along said entire length of said shoe.

Description

3. BRIEF DESCRIPTION OF THE FIGURES OF THE DRAWING

(1) The figures of the drawing are briefly described as follows:

(2) FIG. 1 is a diagrammatic side elevational view of prior art U.S. Pat. No. 4,689,862 to Catallo;

(3) FIG. 2 is a diagrammatic perspective view of the compactor shoe of the embodiments of the present invention;

(4) FIG. 3 is a diagrammatic end elevational view taken in the direction of ARROW 3 in FIG. 2;

(5) FIG. 4 is a reduced diagrammatic top plan view taken in the direction of ARROW 4 in FIG. 2; and

(6) FIG. 5 is a reduced diagrammatic side elevational view taken in the direction of ARROW 5 in FIG. 2.

4. LIST OF REFERENCE NUMERALS UTILIZED IN THE FIGURES OF THE DRAWING

A. Prior Art

(7) 10 apparatus for compressive treatment of web 12 of fibrous thread interlaced web material 12 web 14 first roll 16 outer convex surface of first roll 14 18 arrow of first roll 14 20 second roll 22 nip 24 outer surface of second roll 20 26 arrow of second roll 20 28 shoe 30 first wing of shoe 28 32 second wing of shoe 28 34 critical lower edge of shoe 28 36 precompacting zone 38 top surface of shoe 28 40 pair of ends of top surface 38 of shoe 28 42 center of top surface 38 of shoe 28 44 first radius of curvature of first wing 30 of shoe 28 46 second radius of curvature of second wing 32 of shoe 28 48 channel of top surface 38 of shoe 28 49 coolant

B. Introductory

(8) 128 shoe of embodiments of present invention.

C. Configuration of Shoe 128

(9) 130 first wing of shoe 128 132 second wing of shoe 128 134 critical lower edge of shoe 128 138 top surface of shoe 128 140 pair of ends of top surface 138 of shoe 128 142 center of top surface 138 of shoe 128 144 first radius of curvature of first wing 130 of shoe 128 146 second radius of curvature of second wing 132 of shoe 128 148 channel of top surface 138 of shoe 128 149 coolant for avoiding heat deformation of critical lower edge 134 of shoe 128

D. Improvement

(10) 150 through bore of shoe 128 for carrying coolant 149 for avoiding heat deformation of critical lower edge 134 of shoe 128

5. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

A. Introductory

(11) Referring now to FIG. 2, the shoe of the embodiments of the present invention is shown generally at 128.

B. The Configuration of the Shoe 128

(12) The configuration of the show 128 can best be seen in FIGS. 2-5, and as such, will be discussed with reference thereto.

(13) The shoe 128 has a gull-wing shape formed by a first wing 130 and a second wing 132 that meet at an arcuate apex, henceforth referred to as a critical lower edge, 134.

(14) The shoe 128 further has an entire length, and a top surface 138 with a pair of ends 140 and a center 142.

(15) The first wing 130 of the shoe 128 has a first radius of curvature 144 and the second wing 132 of the shoe 128 has a second radius of curvature 146, and both depend concavingly from the pair of ends 140 of the top surface 138 of the shoe 128, respectively, to the critical lower edge 134 of the shoe 128.

(16) The first radius of curvature 144 of the first wing 130 of the shoe 128 is less than the second radius of curvature 146 of the second wing 132 of the shoe 128.

(17) The top surface 138 of the shoe 128 further has a channel 148.

(18) The channel 148 of the top surface 138 of the shoe 128 depends in the top surface 138 of the shoe 128, at the center 142 of the top surface 138 of the shoe 128, is rectilinear-shaped, and extends along the entire length of the shoe 128.

C. The Improvement

(19) The shoe 128 further has a through bore 150.

(20) The through bore 150 of the shoe 128 extends axially and completely therethrough.

(21) The through bore 150 of the shoe 128 is disposed between the channel 148 of the top surface 138 of the shoe 128 and, and in close proximity to, the critical lower edge 134 of the shoe 128 and is for carrying a coolant 149 for avoiding heat deformation of the critical lower edge 134 of the shoe 128.

(22) The through bore 150 of the shoe 128 is cylindrically shaped for providing a smooth flow of the coolant 149 by avoiding obstructions, such as, but not limited to, corners and edges.

D. Impressions

(23) It will be understood that each of the elements described above or two or more together may also find a useful application in other types of constructions differing from the types described above.

(24) While the embodiments of the present invention have been illustrated and described as embodied in a shoe for a compactor, nevertheless, they are not limited to the details shown, since it will be understood that various omissions, modifications, substitutions, and changes in the forms and details of the embodiments of the present invention illustrated and their operation can be made by those skilled in the art without departing in any way from the spirit of the embodiments of the present invention.

(25) Without further analysis, the foregoing will so fully reveal the gist of the embodiments of the present invention that others can by applying current knowledge readily adapt them for various applications without omitting features that from the standpoint of prior art fairly constitute characteristics of the generic or specific aspects of the embodiments of the present invention.