General Dimensions - Byers Geared Steam Locomotives

Driving Wheels, diam	24 ins.
Journals, driving axles	2 ⁵/₁₆ x 4 ins
Axles, diam.	2 ¹⁵/₁₆ ins.
Main shaft, diam	2 ¹/₈ ins.
Countershaft, diam	2⁷/₁₆ ins
Wheelbase	3 ft. 4 ins
Length over all	12 ft 2 ins.
Width over all	6 ft.
Weight in working order	11,000 lbs.
.......Full coal capacity	250 lbs.
.......Full water capacity of tank, 100 gallons	834 lbs.
.......Allowed for water in boiler, 180 gallons	1,500 lbs
Cylinders	5 ½ x 7 ins.
.......Distance c. to c.	4 ft. 1 in.
.......Piston rod, diam.	1 in.
Valve Gear	Link motion
.......Steam ports	⁹/₁₆ x 4 ½ ins.
.......Exhaust ports	1 x 4 ½ ins.
.......Lap of valves	^{5/₁₆ ins.}
.......Lead of valves	^{1/₁₆ ins.}
.......Max. travel of valves	2 ins.
Boiler; type	Tee
.......Vertical leg	32 x 60 ins.
.......Barrel	26 x 64 ins.
.......Tube sheet and barrel plates	¼ in.
.......Height from rail to center line	3 ft. 9 ins.
.......Length of smokebox	1 ft. 8 ins.
.......Working steam pressure	120 lbs.
Firebox	Circular
.......Diameter inside	28 ins.
.......Depth inside	26 ins.
.......Side plates	⁵/₁₆ in.
.......Crown sheet	³/₈ in.
.......Grate area	4 sq. ft.
.......Staybolts, diameter	¾ in.
.......Water space, width	2 ins.
Tubes; material	Steel
.......Number	32
.......Diameter, outside	2 ins.
.......Length between tube plates	6 ft. 0 ins.
Heating surface
.......Tubes	88 sq. ft.
.......Firebox	14 sq. ft
.......Total, with exterior tube area	102 sq. ft.
Exhaust nozzle, diam.	1 ¹¹/₁₆ ins.
Smokestack, smallest diam.	8 ins.
.......Height	3 ft. 4 ins.
.......Height from rail to top	8 ft. 2 ins.
Tank capacity	100 gallons
Coal Capacity	250 lbs.
Brake	Friction disk, operated by hand.
Gearing
.......Driving pinion
..........diam.	5 ¹³/₁₆ ins.
..........number of teeth	12
.......Intermediate pinion
..........diam.	12 ins.
..........number of teeth	25
.......Axle gear wheel
..........diam.	17 ⁹/₃₂ ins.
..........number of teeth	36

These dimensions were transcribed from an article entitled "A Geared Locomotive For Contractor's Use" that appeared in the May 21, 1896 issue of Engineering News. We thank John Taubeneck of Seattle, Washington for providing us with a copy of the article.