May 10, 1922 



HARDWOOD RECORD 



17 



ber from the mill to the dry kiln and back to the finishing mil! 

 again is automatic. The boards are carried forward on a Vive roll 

 conveyor to a point where the lumber stacker or loader is placed 

 and then moves sideways onto the loader, which equipment is used 

 for stacking it on the cars. After the cars are completely loaded 

 they are then placed on the transfer tables and then moved to a 

 point directly in front of the empty dry kiln. After the lumber 

 has been in the dry kiln for the required length of time, it is then 

 removed and a car is transferred to the unloader, which apparatus 

 is used for removing the lumber of the car and placing it again on 

 a live roll conveyor, which removes it to a required point in the 

 fabricating plant. 



The Chain Feed Engine Saw 



Because of its importance in the scheme of furniture manufacture 

 the chain feed engine saw comes into the w^riter's mind at this 

 junct jre. Ten years ago most of the w^oodworking factories were 

 using hand-feed rip saw^s 

 in their break-out rooms. 

 Some of them, but a 

 small percentage, were 

 using power feed rip 

 saws. But even over the 

 power feed rip saw^ of 

 those days the chain 

 feed edging saw^ is a 

 great improvement. The 

 only advantage obtained 

 with the old power feed 

 rip saw was speed of 

 feed. With the chain 

 feed saw^ even greater 

 speed is obtainable, w^ith 

 the added advantage 

 that the stock is ripped 

 absolutely straight so 

 that it may be glued up 

 without further prepara- 

 tion. 



Electric motors are 

 now being designed and 

 installed on both the 

 cross-cut and rip saws. 

 On the power-feed rip 

 saws, it is possible, in 

 most cases to install two 

 motors, one driving the 

 feed arrangement, and 

 the other driving the 

 power. The control of 

 the motor can be so arranged that if either one or the other becomes 

 stalled, the other motor will immediately shut down. The starting 

 and stopping of both of the motors can be arranged with either 

 push-button or the small drum controller. 



The power-feed buzz planer is a machine that has added greatly 

 to speeding up production and, incidentally, it has helped to pre- 

 serve the fingers of a great many men. Facing off stock in prepa- 

 ration for surfacing was a slow^ and dangerous job when it had 

 to be done on a buzz planer by hand. It was often necessary to 

 pass a board over the cutters several times. When a man had 

 been doing that for several hours he began to slow down. Adding 

 a power-feed attachment to this machine increased its capacity 

 by a very large percentage. 



There are several woodworking machine tool manufacturers 

 now placing on the market power-feed buzz planers, with |/2 H. P. 

 to 1 H. P. motors directly connected to the planer head, which can 

 be moved from place to place in the mill. In most cases, the motor 

 is the j/2 H. P. capacity and it is possible to use it on any ordinary 

 lighting circuit, which makes it convenient in any finishing mill. 



By Courtesy Mattlson Mai-liiiif Wiirka 



Oscillating: Belt-Edge Sander, Typical of 



Surfacer Undergoes Important Changes 



The surfacer has undergone some important changes in the last 

 ten years. Instead of the old square cylinder carrying two knives, 

 the modern surfacer has a round cylinder carrying three and four 

 knives. With the direct application of motors to the cutter-heads on 

 the surfacers and planers it has been possible to eliminate the 

 troublesome belts which were used on the old type of machines. 

 The special feature in the application of these motors to the ma- 

 chine is the method of mounting them directly on the frame of the 

 machine. These motors may be operated through push button or 

 drum control. The drum controllers may be all mounted in one 

 case, and directly on the side of the machine. These drum con- 

 trollers will give over-load and no-voltage protection to the motors 

 and they do not require the space on the machine that the push- 

 button contractors require. 



Ball bearings have been introduced in the main bearings of sur- 

 facers. Self-contained knife grinders, driven from electric lamp 

 sockets are offered; thin high speed knives, permitting both 

 smoother and faster work, have taken the place of the old style 

 carbon steel knives. The knife grinder has been of incalculable 

 benefit to the woodworking manufacturer, as have the setting and 



jointing attachments to 

 the surfacer. Instead of 

 the long delays neces- 

 sary to remove the old 

 style knives and grind 

 them, the knives of the 

 modern surfacer may be 

 ground in a short time 

 without the necessity of 

 removing them from the 

 machine. Then they are 

 jointed to bring them to 

 a true cutting circle and 

 make all the knives cut 

 in exactly the same cir- 

 cle. The whole secret 

 of increasing the produc- 

 tion of a surfacer, while 

 at the same time better- 

 ing the quality of the 

 work, was increasing the 

 number of knives cut- 

 ting. The only other 

 difficulty was to get all 

 these knives cutting ac- 

 curately and this was ac- 

 complished by mounting 

 the jointing attachment 

 on the machine and jointing the knives as the cylinder revolves. 

 What has been said of the surfacer applies also to the jointer and 

 to the moulder, in so far as the latter is used for dressing straight 

 stock. The equipment usually found with a moulder today in an 

 up-to-date plant is square cylinders for odd work, round cylinders 

 for straight dressing and solid cutters or Shimer heads for mould- 

 ing and tongue and groove w^ork. This equipment is all of the 

 slip-on type and jointing attachments are used to insure accuracy 

 of the cutting circles. 



There is a small electrically operated jointer, built for lamp 

 socket attachment, which may be operated at each man's bencl>. 

 Some shops have one of these for each section of the factory for 

 use when little jobs are to be done, as it saves the power used to 

 start up a big jointer, and, also saves the time it takes for a man to 

 go to and from the big jointer. It also does what the carpenter 

 would do at the bench with a hand plane with the expenditure of 

 much more time. This, of course, is not an improvement on an 

 old tool, but a new tool developed. 



the High State of Sander Development 



