96 
WISEMAN-DOWNS COMPANY, INC. 
BALTIMORE 
MYERS SELF-OILING BULLDOZER POWER PUMP 
Self-Oiling. Fully Enclosed. Back Geared 5 to 1. Renewable 
Bearings “A.” 100-Pound Pressure. 
Floor Space: 
2J^x3 Pump.14x31 inches 4x5 Pump. 24x46H inches 
3x4 Pump.18x37 inches 5x5 Pump.24x48 inches 
For General Service. 
Capacity 500 Gallons at 70 R. P. M. 
No. 912 —Myers Self-Oiling Bulldozer Power Pump with vacuum 
chamber, 2^x3 inches. Brass-lined cylinder, 12x2 inches. Tight and 
loose pulleys, 1% inches. Brass piston rod, suction and discharge, 1H 
inches. Price. $58.00 
Capacity 1,000 Gallons Per Hour at 70 R. P. M. 
No. 913 —Myers Self-Oiling Bulldozer Power Pump with vacuum 
chamber, 3x4 inches. Brass-lined cylinder, 14x2^ inches. Tight and 
loose pulleys, V% inch. Brass piston rod, suction and discharge, 1J^ 
inches. Other sizes furnished up to 10,000 gallons per hour capacity. 
Price $91.00 
Send for Catalogue and Prices on Larger Size 
MEYERS PUMP JACKS 
Fig. 1635 represent the Myers Universal Pump Jack, designed to 
be used in connection with any ordinary windmill head pump without 
disarranging the pump or pipes in any manner. It is mounted on a 
substantial circular base which surround the pump stand, and is bolted 
securely to the platform, and also clamped to the pump stand, making a 
most substantial job. We believe this to be a more practical device than 
the ordinary cheap jack now in use, which is bolted direct to the body of 
the pump stand only. 
The Universal Jack is fitted with steel shafts and our regular Bulldozer 
machine cut gear wheel and pinion. The connecting arms are hard steel 
in one continuous piece with lifting strain against edge of steel, which 
greatly increases the strength. The wrist pins are turned steel, held in 
position by heavy bolts. The pulleys are 12 inches in diameter. 
We offer the Universal Pump Jack to the trade as being the strongest and 
most complete device of its kind. Price.$16.00 
Fig. 2029 illustrate the Myers Self-Lubricating Pump Jack, 
engine driven, a novel device in which all gears and moving parts are 
enclosed in a one-piece casting, forming the Oil Reservoir. This con¬ 
struction not only insures perfect and continuous lubrication, but protects 
the moving parts from dust and dirt, greatly increasing the life of the Jack. 
Furthermore, it guarantees perfect safety. 
CONSTRUCTION—Gear and Pinion are machine cut and move 
in oil. The Gear is fitted with an eccentric cast integral which operates 
a walking beam hinged at one end to the main frame or base. The 
revolving of eccentric moves the forward end of walking beam vertically 
giving a 6-inch stroke to the pump piston. Can be used in connection with 
any make of Pump Stand. Has Angle Steel Arms, 
making as a whole the most durable Pump Jack 
on the market. Price.$18.00 
The Myers Master Double Gear Pump Jack, 
as represented by Fig. 2001, is the latest produc¬ 
tion, especially designed for use with windmill 
pumps for deep well work. It is made extra 
wide, measuring 13 inches between the gear wheels, 
which adapts it for use with 3-way pumps. It has 
double gears and pinions. 
The Gears and Pinions are 1 % inch face, 
machine cut. 
The Wrist Pins are 1 inch in diameter, hard 
steel, machine smoothed, screwed into the gear 
wheel, and are secured in addition by a lock nut. 
The Shafts are l'/ 8 inch drawn steel securely 
keyed to the gears. 
The Pulleys, 12 inches x 3 inches, are located 
in the center of the jack, providing for a center 
pull, thus doing away with all side strain as in 
other style jacks. 
The Frame is made in two separate pieces, 
held together with 7 / 8 inch steel rods. 
The Side Arms are angle steel bars, adjustable 
to any length stroke or height of pump. 
2029 The Crosshead is extra strong, fitted with a 
ball and socket joint to attach the pump rod. 
„ . This socket joint prevents binding and removes 
all unnecessary strain and friction on the piston rod. The socket joint also permits the 
piston rod to pass through at any angle, or pump to set at any angle. 
The Myers Master Double Gear Pump Jack is designed to meet the demand for an 
extra strong jack where great strength and wearing qualities are desired. Price. . . . $19.00. 
UNIVERSAL BALL & 
SOCKET JOINT 
2001 
Write for Special Pump Catalogue 
