HARDWOOD RECORD 



29 



kilns, although in some plants the back pres- 

 sure is eliminated by using the vacuum sys- 

 tem of Heating. There are in the present 

 mill four dry kilns which are satisfactorily 

 heated by hot water instead of steam. The 

 steam from the exciter turbine, together 

 with thill from the vacuum and circulating 

 jiunips, is used for heating the boiler feed 

 water and kiln water. There are two separ- 

 ate heat'rs, and steam for each is regulated 

 to suit conditions. 



The turbogenerator is excited by a 2.5 

 K. W.. 125-volt, direct current dynamo run- 

 ning at 3,600 R. P. M. For the control of 

 the generator and the distribution of power, 

 a six-panel switchboard is provided. The 

 first panel is for the exciter, and contains a 

 voltmeter, an ammeter and a Tirrill regu- 

 lator. Tht second panel is a generator panel 

 :nd is provided with an ammeter for each 

 ]iliase, t. voltmeter, indicating wattmeter 

 ;ind integrating wattmeter. Panels No. 3, 

 4. 5 and 6 are for the distribution of power 

 to the viuious sections of the plant; each 

 has four circuits. A large number of cir 



individual motor drives are used throughout 

 the entire plant. As the building stands 

 without special foundations on filled land, 

 it is likely to become several inches out of 

 alignment. This would be serious with a 

 line shaft drive, as it would increase not 

 only the power consumption but materially 

 increase the tire risk from hot bearings. 

 This danger dees not exist with individual 

 motor drive, as the building may settle with- 

 out affecting the operation of any of the 

 machines 



Outside of the mill, but protected by H 

 lean to, is an S. A. Woods 20 by 30-inch 

 double-head timber dresser, into the table 

 of which is built a 48-inch cir;cular saw; on 

 this machine timber may be sawed and 

 dressed it one operation. The two planer 

 heads are driven by a 40-horsepower West- 

 inghouse type "CCL" induction motor, 850 

 R. P. M. coupled to a countershaft. The 

 saw is driven by a motor of similar rating, 

 coupled ro its arbor. To still further follow 

 out the practice of economy in woodwork- 

 ing it has been decided to replace the cir- 



S. A. Woods (ixlo-inch planor and matcher, 

 40 horsepower. 8.j0 K. P. 'SI., coiipleci. 



S. A. Woods (jxS-inch planer and matcher. 40 

 Iiorsepower. 8.30 U. I*, il.. coupled ; for fast feed. 



.S. A. Woods (ix8-inch planer and matcher. 40 

 horsepower, 850 R. P. M., coupled ; for fast 

 feed. 



Greenlee. 14-inch self-feed rin saw, 10 horse- 

 power, 1,700 K. P. M., belted. 



Mershon .■>4-inch band resaw, 40 horsepower, 

 8.'.0 K. P. M., belted. 



Mershon 44-incli band rip saw, 10 horsepower, 

 1,700 K. P. M., belted. 



tir-^enlee 14-incli self-feed rip saw, lo horse- 

 power, 1,7110 It. p. M., belted. 



For collecting the shavings from the above 

 nuichines two Sterling double blowers are, 

 installed. -The .5.5-inch blower is driven by 

 a 40-horsepower belted motor, and the 70- 

 inch blower by a 75-horsepower motor. Both 

 of these n;otors are mounted on the ceiling 

 and coupled to short pieces of shafting that 

 carry the driving pulleys between hangers. 

 This method of drive is very satisfactory, 

 as it relieves the motor bearings of all belt 

 tension. 



In the sash and door plant on the second 

 floor there are approximate!}' seventy-five 

 men employed. The principal machines used 

 with the motors driving them are given in 



PriWKR HofSE. fi.-)0 K. V. A.. :i.(ioo K. p. M. 

 I.MT: -'.J K. V. A.. S.liOO U. P. M., CT 



ciiits makes it u"unece_ssary to have distrib- 

 uting panels in various sections of the mill, 

 although each motor has its own protection. 

 The only line fuses are those on the front 

 of the board, 



A fivL'-ton Tiiplex hoist suspended from 

 an "I" beam over the turbine and parallel 

 to its shaft facilitates handling of heavy 

 materia! in the turbine room. 



The planing mill is a two-storj- wooden 

 structure. The upper floor is devoted to 

 the manufacture of sash, doors, blinds, etc, 

 while ail timljer dressing, planing and 

 matching, resawing, etc., are done on the 

 ground tloor. With the exception of two or 

 three small machines on the second floor. 



TCItliO (JEXKIJATOI: 

 KTISS EXCITKIt 



S, A, WOODS 20 



Into the table is built i 



ina.v be sawed and dr 



arc driven 



cular h\ a band saw, since approximately 

 one-half of the kerf may be saved. It is 

 expected that this band mill will be in- 

 stalled within a few weeks. 



On the ground floor of the mill the fol- 

 lowing machines are installed: 



Berlin .5C-inch band resaw. driven by a 40- 

 horsepower t.vpe "CCL" motor, 840 U. P. M.. 

 with Morse chain drive. 



Mershon 44-inch band resaw, 10 horsepower, 

 "CCL." 1,700 H, P, M„ belted. 



American 12x20-inch timber dresser, .50 horse- 

 power "CCL," 850 R, P, M,, coupled to counter- 

 shaft, 



S, A, Woods 12-inch moulder, 40 horsepower. 

 "CCL," 830 U. P, M.. coupled. 



American ;:JO-inch double surfacer, 41) horse- 

 power. 850 R. P. M., coupled, 



S, A, Woods 8xl8-inch planer and matcher, 

 50 horsepower. 850 R. P. M., coupled, 



S. A, Woods Gxl5-inch planer and matcher. 

 40 horsepower, 850 R, P. M., couflled. 



x:fO" DOCBLE HEAD TIMBER DRESSER 



4S-inch Circular Saw. On this machine timber 

 essed at one operation. The two planer heads 

 by a 40 H. P. type "CCL" motor. 



the following table: 



-Motor- 



. Machine H.l*. 



American .lig saw 1 



lt>-in, swing saws 2 



American spindle & drum 



s:\nder 2 



IG-in. iron table comb. 



saws i> 



M. L. Andrew & Co, spe- 

 cial 0-spirdle vert, drill 5 

 S. A. Woods 2-spindle 



shaper 5 



.\meric;m 44-in. band saw 5 



Sash sticker 5 



New Britain Machine Co.'s 



chain mortiser 5 



Sash rabbeting machine. . 5 

 American 18-in. Jointer. . 5 

 American single tenoner. 5 

 II. B. Smith chisel mor- 

 tiser 5 



Mei-shon 44-in. band rip- 

 saw 10 



Speed Method 

 R.P.M. of drive 



1700 belled 



