122 



Popular Science Monthly 



A Drainage Kink 



A clever way of bonding joists 



Bonding Joists to Brick Walls 



THE illustration shows how it is best 

 to bond joists to hollow tile walls 

 in the building of residences. A piece 

 of ^i-m. by 2-in. strap-iron is spiked to 

 the joists as shown. The outward end 

 has a hole bored through it and holds a 

 ^-in. steel rod that is lo ins. long. This 

 rod fits into a groove in the top aide of 

 the tile in the mortar joint. 



This scheme makes a solid connection 

 between the floor joists and the hollow 

 tile walls. — W. E. Frudden. 



Emergency Control of Motor 



AMETHOD is herewith illustrated 

 for stopping a motor at will from 

 any part of the shop. When the push- 

 button is pressed the circuit is open and 

 the lever will fly back, stopping the 

 motor. A number of these buttons 

 connected in scries may be used, one 

 by each machine. Should anything 

 happen to the operator the button could 

 be pressed and the motor brought to a 

 stop at once. In the construction of the 

 push-button a spring keeps the disk in 

 contact. — Frank Harazim. 



I 



N the installation of an 8-in. steam 



line, using present headers and steam 

 openings in a steel and brick building 

 used for gas-n^aking purposes, it was 

 found that to place the line with least 

 expense and to drain back to the 

 boilers, a i2-in. I-beam was in direct line. 



To go over or under the I-beam meant 

 a trapped line and use of a steam trap. 

 To avoid the use of a steam trap and 

 take care of condensation the connection 

 was made as shown below. 



An 8-in. line was Installed using 

 45-degree bends over the 1-Beam and 

 a two-inch drain line underneath the 

 I-Beam. The two-inch line takes care 

 of condensation and gives drainage back 

 to the 8-in. line which in turn drains to 

 boilers. — W. W. Flanders. 



§c5o ^^'S7££L CHANNSL 



eSF! L 



BO/LER ROOM 



BRICK WALL 



Diagram of device for stopping motor 

 from any part 'of shop 



Ingenious arrangement of drainage pipes 

 around an I-beam 



A Screwdriver Handle 



A SPLIT screwdri\cr handle may be 

 neatly repaired by means of wire and 

 snkicr. Place the end of the split handle 

 in tiie lathe chuck. The jaws will force 

 the split parts into nearh' their original 

 position. IVlake a slot around the handle 

 wide enough to take four or five turns 

 of wire and deep enough so the wire will 

 be below the surface. If a lathe is not 

 available, the handle may be held in a 

 vise and the slot cut with a knife. 



With a hand drill, make a hole near 

 the slot in which to start the wire. The 

 hole should be as nearh' the size of the 

 wire as possible. Wind the wire on 

 tightb-. Holding the end with pliers, 

 cover the wire with solder, forming a 

 solid metal li.md. Smooth the solder 

 with a file, and the screwdriver is as 

 good as new. — B. H. Linnv. 



