My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
PERMFILE51040
DRMS
>
Back File Migration
>
Permit File
>
600000
>
PERMFILE51040
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 10:55:19 PM
Creation date
11/20/2007 2:44:05 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981020A
IBM Index Class Name
Permit File
Doc Date
5/13/2002
Section_Exhibit Name
Appendix H MSHA Plans Deleted from Current Permit
Media Type
D
Archive
Yes
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
115
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
P,DDF SUPPORT I~w1ERIALS - All components of the roof bolt assembly <br /> shall comply with the American National Standards Institute "Spec- <br /> ifications for Roof Bolting Materials i n Coal Mines." <br />1• H. RDOF BOLTS Manufacturer's <br /> P~anufacturer CF&I Steel Corp. Designation 5772-1228-7-1 <br /> Bethlehem Steel Co. 23-9,10 <br /> Kaiser N/A <br /> _ Minimum Length ~6"' ~,~~ I'SO' iameter 5/8" <br /> F4 2-76 Grade 75 CF&I <br /> Type Steel A306 Grade 80 (Bethlehem) Type Thread Rolled <br /> Length of Thread 8" Min Type Hea d Standard <br /> (Stand ard, Self-centering, Cone Neck <br /> Dimensions of Bolt Head: Nut 1-1/8"Flan ge 1 - 1/2" <br /> I. GEARING PLATES Manufacturer's <br /> P'~anufacturer Gate City Steel Designation N/A <br /> eth e em teel Co. 24-9,913 <br /> neon orge ASTM X432 <br /> Dimensions 6" X 6" X 1/4" (Gate City & Bethlehem) <br /> 6" X 6" X 3/16" Ilninn Fnr~ <br /> <br /> Center 13/16" GCT <br /> Shape Donut Em Hole Size 3/4" (BSC & UF) _ <br /> Donut Embossed, Bell Embossed, Flat) <br />• J. WASHERS Manufacturer's <br /> ldanufacturer Designation <br /> *Type Steel Hardened Size <br /> *Washers shall be through hardened to a hardness of 35 to 45 as <br /> measured on the Rockwell C Scale. <br /> Shape Hole Size <br /> K. ANCHORAGE UNIT Manufacturer's <br /> PSanufacturer Pattin Cor D-1 Designation 5792-0121-5-1 <br /> ethlehem Steel Co. C-1. K-3 5-64,68,76,80 <br />K <br /> _ <br />hio Brass Co. , <br />22463 <br /> Size +.030" <br /> Expansion <br />Type Finishing Bit 1-3/8 <br /> Finishing bits shall be easily identifiable by sight or fee <br /> Installed 7orGue 150 ft.-lb. <br />L. MATERIALS USED IN CONJUNCTION WITH ROOF BOLTS <br />6" X 16" X 3/16" Half Headers (steel} Pattin Mfg. Co. _ <br />• Steel Roof Mats <br />Prior approval Shall be obtained before making any changes in the mater- <br />ial listed. <br />
The URL can be used to link to this page
Your browser does not support the video tag.