Page 104 - Content.pmd

CûQdLh¥L°u ®YWd ϱlÀÓ (Des-
ignation of parallels)
CûQdLh¥L°u AûYL°u YûL
(§PYûLLÞdÏ UhÓm ¨oQ«dLlThP
Gi B¡VûY ùLôiÓ Ï±l©PlTÓ¡u\].
(Fig 4)

CûQdLh¥Ls ú_ô¥L[ôL
EÚYôdLlTTÓ¡u\]. CûYLû[j
ú_ô¥L[ôL ETúVôLl TÓj§]ôp
ÕpXõVUô] AûUÜ ¡ûPdÏm.

TôÕLôl× Utßm TWôU¬l× (Care and ERôWQm: (Examples)
maintenance)
§PYûL CûQdLh¥ A5 x 10 x 100 IS: 4241
• TVuTÓjÕYRtÏ Øu ©u ÑjRm
AûUl× Uôt\jRdL CûQdLh¥ 10 x 13 IS:
ùNnVÜm.
4241
• TVuTÓj§V ©\Ï B«Xõû] éNÜm. AhPYûQ 2 (Table 2)

• CRû] aôUûWl úTôp TVuTÓjÕRp Range and size of Adjustable Parallels (Fig 5)
áPôÕ.
Height Range Length
CûQdLh¥L°u A[ÜLs (Sizes of
paralles) 10 - 13 40
13 - 16 50
CûY AhPYûQ 1 Utßm AhPYûQ
2-p ϱl©PlThÓs[]. 16 - 20 60
20 - 25 65
25 - 30 70
AhPYûQ 1 (Table 1)

30 - 40 85
Sizes of Solid Parallels
40 - 50 100
Grade Size T.W.L.
A & B 5 x 10 x 100

A & B 10 x 20 x 150
A & B 15 x 25 x 150
A & B 20 x 35 x 200
A & B 25 x 45 x 250

A & B 30 x 60 x 250
A & B 35 x 70 x 300
B 40 x 80 x 350
B 50 x 100 x 400

£_õ & Gm: @©hPo (NSQF - Revised 2022) R.T. for Ex.1.2.25 83