Ball Improved Reverse Gear
for Motor Boats
Patented April 9, 1901 - November 3, 1903
January 12, 1904
Manufactured by
NEW YORK GEAR WORKS
56-58 Greenpoint Avenue - Brooklyn, New York
It isn't so much what you pay for a Gear.
It's what you get for what you pay.
Our 50 h.p. 6-cylinder demonstration Speed Boat on which we are using our No. 3 Gear. Length 33 feet, Beam 5 1/2 feet. Speed better than 20 miles per hour.
This booklet describes briefly the well known BALL IMPROVED REVERSE GEAR for Motor Boats. We call your attention to the important and practical features of this Gear by a few illustrations of the Gear itself and by explanations of what it will do in actual operation. We are one of the oldest gear manufacturing concerns in the country and therefore have the advantage of long experience in this special line of mechanical work. Although our earlier gears met with most gratifying success, it has been our constant study and aim to make some marked improvement each season. The original and distinctive characteristics of this gear, however, have always been maintained. Changes which have been made have developed where experience has shown necessary in order to meet extra demands put upon the gear. By being able to fulfill and even exceed these additional requirements, the Ball Gear has successfully continued its superiority and leadership.
We carry four sizes in stock, but make gears to order up to any horsepower. If desired we can furnish Brake Band so that lever can be used in horizontal position. When ordering give diameter of engine shaft. We bore the hub end of gear to fit on engine shaft, thus making it very simple to install, as only one coupling is needed for the propeller shaft. The number by which we designate our gears does not correspond with that of any other make of gears, as will be seen by comparison.
Operating
The Brake Band must be supported on each side and the screws for holding same down by the lugs must be left about one thirty-second slack to allow side play, so that the band can be tightened completely around the drum when reversing. For the larger size gears it is desirable to use a thrust bearing on the propeller shaft to take the thrust both ways. When assembling the gear, be sure to have the marks (1) on the double gears toward the center of the shaft.
To adjust the clutch, take out the set screw and lock nut on the spider that carries the three dogs. Screw the spider on the sleeve sufficient to make clutch hold so the cone can be thrown in with moderate pressure. Next replace the set screw so the point enters one of the grooves in the sleeve, moderately tight; then screw lock nut tight.
The gear case must always be kept filled with soft grease, and outside working parts oiled enough to prevent them rusting fast. All gears when shipped are filled with grease ready for use.
All bearings are extra large for the amount of work they have to do and are all bushed with the best of Bronze.
By shifting the lever aft the band is tightened thus giving the reverse speed. By shifting the lever forward the band is released and at the same time the cone is thrown in, giving the speed ahead or direct drive with no gears in operation. By shifting the lever so that it is straight, the band is released and the cone thrown out so that the motor runs without moving the boat.
The reverse speed is one-fourth slower than the forward speed.
The clutch is one of the main features of this gear. We have been furnishing this type of clutch for a number of years and experience has taught us that this cone clutch gives the best satisfaction. The clutch has only one adjusting part and that is in sight at all times. It is built for strength and durability combined with simplicity as shown in the cuts.
Manufacturing
The BALL IMPROVED REVERSE GEARS are manufactured under the most careful supervision of competent mechanics, and all the parts are made perfectly interchangeable by the use of jigs and gauges and automatic machinery, in the most up to date manner. All the gears are made of the best grade of steel for this purpose, and box hardened in the most approved method, and the bearing surfaces ground.
No. 1 Gear will transmit 5 h.p. running 500 r.p.m. and 20 h.p. at 1000 r.p.m.
No. 2 Gear will transmit 8 h.p. running 500 r.p.m. and 30 h.p. at 1000 r.p.m.
No. 3 Gear will transmit 12 h.p. running 500 r.p.m. and 40 h.p. at 1000 r.p.m.
No. 4 Gear will transmit 16 h.p. running 500 r.p.m. and 50 h.p. at 1000 r.p.m.
These figures are not theoretical, but are based on the holding qualities of the clutch, as found by practical use. When in doubt as to what size gear to use, write us and give bore and stroke, number of cylinders, two or four cycle, speed of motor and diameter of engine shaft.
CUT SHOWING CONSTRUCTION
When ordering give dimensions of engine shaft and horse-power.
All parts sent back to be replaced must be sent transportation prepaid.
Prices quoted are for immediate acceptance and the manufacturer reserves the right to withdraw quotations without notice.
Terms, C.O.D. by express or sight draft with bill of lading attached.
Patents
We are the owners of the United States Letters Patent covering the SPUR PLANETARY REVERSE GEAR, and we wish to caution manufacturers and purchasers against infringement of our rights either in manufacturing or in the use of any device which is an infringement on these patents.
Guarantee
The value of a guarantee should always be considered according to the reliability of the manufacturer who gives it. We do not give any broad guarantee in order to seal our gears, but we make it a point to replace any defective part within a season, if the defective part is returned to us prepaid, providing a reasonable amount of care has been used and a proper size gear has been selected.
Testimonials
If we desired to do so, we could offer more than enough testimonials to fill this pamphlet. But the fact that we have been making Reverse Gears for a great number of years and the steady increase in our output are the best testimonials we know. That we have been obliged to greatly increase our plant from year to year is the strongest proof of the satisfaction the Ball Gear has given to all purchasers.
Original Booklet was Designed Engraved and Printed by
A. Mugford 143 Liberty Street New York
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