Methods of loading lumber at the rear of the mill (second series)

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Material Information

Title:
Methods of loading lumber at the rear of the mill (second series)
Physical Description:
Unknown
Creator:
Telford, C. J
Forest Products Laboratory (U.S.)
Publisher:
USDA, Forest Service, Forest Products Laboratory ( Madison, Wis )
Publication Date:

Record Information

Rights Management:
All applicable rights reserved by the source institution and holding location.
Resource Identifier:
aleph - 29312402
oclc - 755742350
System ID:
AA00020570:00001

Full Text
i% b .-. / I o4 > : *' ..... .
FOREST PRODUCE'S LAbuAATOR t F.,i 4..1! ,: .V.tA
U. S. DEPARTMENT r OF AGRICULTURE

*4S4 1 C SMALL SAWMILL IMPROVEMENT
*.4S411 C rnveyingc
to ,ePRACTICAL POINTERS TO FIELD AGENCIES




(TecnCn Series)

Se'-,',r-l methods o.f l',d: n7' : I'r -:' er ,t tne r(,"1' of the 2-''l "re ,-rih:h-
"n : rtort .,3 41. (:. meo. .'9P-16) orf t .in series. Add! tional I'oes f_ ] ,:'" ....
loadin" sc->ffolX1., a. u'ed in tr-e ">'est ire h're described. -. :.lb r. ,
tc 5,C'..' bordc feet of rn ..do>iir tl 16n-foo .toc'"4 C" I -:d.

Porta'le_]ack.,---J cks iu-rd in ,ort to ea!e t'c Icari r-'.to thKe truc'. rr to I.ke it "ff. 7el f e ...- "
k 1caffo!o (fi:;. ') 4 set f t'o ,c': un crt a .l r., neo t
hei .t n c o -ate fo1r bxxic cIearance ',s the to.c'- ia :c'.ceu *nc"K :'
: ,. is inclinc.i e ,wnwarl at t.':, fr. t of 'f. .I . lc.n... .
the su ortin' acl:s t-e re;,r bl. : cx,. ; r re ].oac ,'ac r.o,.'t. .. .... .
wit' rel tior t t_-e cab .: A G Ire truc i t ..nt _. oi" ,
front KvYrucrt i d*ckod. dow:x, :.x tlc load i.; c t l2., on t :rw t .'. -i:-^
al~~o k .e..er thi^. ec["iT:'.- t i.. ': 'cc. t' romev ' ... 1.- ... .; .. .. t ":"h f
~~~~~"front7:. Crt iw 7,n
jacks are -j.secd, t vo e.ue-at e rnt " .t; *" rsear or-.i

Lever-f rm supp)ort.--n IC 'oT~"r-r.. : 'r t ,lo. .- r-s-
-iece is ... rt. .e en ",' plank voc c n o 'f ... ':.2 o a .
S raise or lower t.he cro-.iece ;i 1.' (" i 2) ior.1, -.0C te -f. '- iN
positioned a aescri'ced under irt e ,dcks e .c .*t (fi e) re-
move, r restrainin; lev-:'"._., applied to he p:l.x: to t eo .d
the front corner :s the -,lank i'rots naoer t i.t f tao '-
s,t b is ,bctut 5 :eet P. ove -.in r. '- e let-dC ow' ,. C- ..:.' .. .. 2'j- 'e -- ::
from t.-e o 1-.'_ end trvellin frrm :* tc b is not c'.Jup t r--: ', ..e o;
d o wn .. e bunko, out after th. oC er front c"rnr "s !r,;er(d 1n .;:].r
manner, t.e sui>ortin" I con 'e csil: tu'iC.d '..., *":'.L.T a L"'.t
toward t..e front e1d of t-.., l.oa.d rest', o *:e ".... s.
G@a".e-frarnc '*'un-ort s --A .rect. ... --u r fr (f~ 0 **' .*-.''e t" or i- ;

one end. of r ]o a. t e re .... "d "e,-t "is 1G f y... .
mill platfor-.. It "e tilted 'I thP t '-r- . 1 -" tt ... e*t r
prop)ed. vith a ;)lan, or :a' he norte 1. a ro:e're. 2-'-- (ir., A-,
wit t' r end of the 2-b.-- niled to - -.
tilt.. i .e top sli f et BRAR.11
(f" 4, 7). It ray l-e set ur d:e" ",he r'abe 'fi'' .'4,' A) "*:* .'e
anchored rr turnedI eI a oi'-r "i" 4 3 o hi..e. .
thepr l'nke roadbed ifo cut t o.ut "o t th. .... -. . ..
pr.v refor e tr': weels at t e a: -vel d f r t t:" rii:
r- e. .. he t of the -. t "-...... e or.eq'.a e *o -ee _ fr^ : ht t -,""
the pile j ove k.. end on the toad-"ut r rlat "
ernur, S e .r t:e 1'I a rnut a f n back fr !..;r.t ." nd ''
the lo'nd off t e s' ., :.rt nF t e tr ck cent :n ~ '- .":. .: .'
-.ili platforr..-is a stop to -nrovide a a'Ickstcp as the *r.r' "o' :-u..3 S c i
pla".., tlie lo d.
iep',.rt Yo. R 9J '-'3 ( -":*)
t Maintained at Madison, Wisconain in cooperation with the Untversity of Wisconsin
*Sea outline in Small Sawmill Improvement Working Plan, March 1930. for explanation of indexing yyztm ptopoed








Fix'ure indiicates the truick features and roller spacing. The metal
apron at the rear minimizes b:reakage as loads are rolled off the truck: 3'-
c'atting the erd of the rear roller to take a wrench, iJrovision ca'n be mac de
tc unload the entire p!cl:.:,'e in one o-eration.



Contributed by
C. J. T3ELFOHD
Small-mill Speci list
lharch 1945


Report l-o. R399-23











LOAD1


-a r
t




F f


'* s

I\'


r. .


'~ I


-ml


1
:I -



12?' A 12""


-h/F ';L


-1


z

^4- X-6


/OAD


I ~


.. .


A ~


S4..... .

1 1'


" AS5E


. i I




,il,.EkSiT '-F FLCORIDA


3 1262 08926 9772


Figure 3.--Truck-loading scaffold using gate-frame support.


I i


ZX 4"B'RACEf


-2'X /0"


3'" X


-3 /a 0"


L2" X /0" -TPii
'/ B

Figure 4.--Details of two types of gate frames. A, gate frame supported by notched 2-by-4; B, gate
frame supported by chain and hinged on a pipe.


/IETAL
APRON 4"-----+
16. WID


PACING


OF ROLLER


Figure 5.--Truck equipped with rollers for ease In loading and unloading, with details of truck
roller and roller spacing-
ZM .'-77 F


Z X /0o


LAR


ROLLfER