The New Departure Motor Alarm Bell.
In these days, when public thoroughfares are crowded with vehicles equipped with all sorts of alarm devices until street noises have been multiplied many times, it is satisfactory to note that the advent of the motor fire apparatus does not mean that the bell. which has for a century or more been the distinctive and peculiar alarm of fire departments, is to disappear. True, for a short time other devices, such as horns, whistles and shrieking sirens, nave been used to some extent, but this was due largely to the tart that a liell of same efficiency as those used on horse drawn apparatus had not been made adaptable to the mo’or driven apparatus. The New Departure Manufacturing Company, of Bristol. Conn., a concern well known to heads of fire department’ throughout the country, developed and standardised the lire bell, the clear, strong tone of which the public has come to know almost by second nature, indicates the approach of tire apparatus. This bell has increased the efficiency of the fire department by giving it an alarm that is distinctive above all other street noises and invariably e’ears the way, enabling the apparatus to reach the scene of the fire with the greatest possible speed and without accident. Chiefs of lire departments everywhere wrote to the New Departure Company, some months ago, almost pleading for a type of New Departure bell thev could mount on motor fire apparatus. The company, which maintains a staff of mechanical experts, was charged to study the requirements as noted by the chiefs and to so change and adapt the mechanism of the New Departure bell as to make it thoroughly suitable for mounting on motor apparatus of every description. This was done, and several models were made and carefully tested out on local fire apparatus. The model which proved to be the most satisfactory was displayed for the first time at the Milwaukee convention just closed, and met the universal approval of hundreds of lire chiefs who were interested enough to inspect it carefully in all its details. An announcement of this bell will be found in the advertising pages of this issue, showing the various ways in which it can be mounted. The new bell consists of two gongs of slightly differing thickness and giving really two bells in one. The harmony of tone has been cleverly worked out so that, notwithstanding two gongs are employed, the alarm is not a chime alarm, but sounds like one clear, vigorous ring, carrying far ahead of the approaching apparatus The bells are made in two sizes, with gongs 12 inches and 14 inches in diameter, and are finished in either burnished brass or heavy silver nickel. The gongs are cast of the same special composition of bell metal as has been used in New Departure fire bells for a quarter of a century, thereby preserving the distinctive New Departure ringing tone. The bell can be mounted on the side of the car and operated by a lever from the seat, or it can be mounted on the dash and operated by pulling a heavy cord or by a lever. The cord-pull method provides a means by which the bell can be operated front any part of the car—the seat, running board or the rear. The method of attaching to the car is also ingenious and allows the bell to lie firmly mounted or dismounted in a few seconds and without the use of a sing’e tool. This feature is desirable when washing the appara’us or when the apparatus is temporarily out of commission and it is necessary to transfer the bell to another. The principles of operation of the new bell tire identical with those which have proved so satisfactory in New Departure fire bells for years past. The double hammer arm is equipped with heavy tool steel hammers at either end, which revolve rapidlv and strike the gong anvils sixteen times to one complete movement of the lever. The hammer arm is mounted on large size New Departure ball bearings and. in fact, all working parts are so mounted, thereby securing minimum frictional resistance, ease of operation and durability. The manufacturers have gotten out an advance sheet which fully describes this bell and can be secured by addressing the New Departure Manufacturing Company, Bristol, Conn.