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designed to hold the screws in proper adjustment. By these caps on the screws, the wheels, each or all, can be made to run as true and delicately as circumstances may require.

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PLATE II.-THE REGISTER.

This is a representation of the Register, ready to place on the table for service. It represents a diagonal view from the rear,

with the eye at an angle of 45 degrees. C is a base composed of wood, either rose-wood, mahogany, oak, or any other kind. B is the brass base of Register, fastened to the wood base C. A is the side frames; F is a connecting bar, connecting the side frames A A, aided by another of the same guage in front, held firm by screws h h. The sides should be put up and connected by the two connecting bars F and screws h h. They will firmly hold the frame. Proceed to put in any of the wheels at pleasure. To put in the driving wheel, or drum, unscrew the angle G in side frame A, and set in the socket the axle of the drum or wheel No. 1. It is not material which of these wheels are put in first. Wheels 6 and 7 are the rollers. Letter u is a lock or guage to regulate the velocity and pressure of the roller No. 7, which will be further illustrated in the next plate; e e are the screw cups, or standards, to which are attached the local wires.

C is the magnet standard, fastened in bases B and C by a screw; a and b are the local or register magnets, fastened by screws, either of which may be taken off without disturbing the other; m is the armature; p the adjusting screw on standard c, which projects through the centre of armature m, enabling the operator to adjust the sound of the "back stroke" to suit his pleasure; o is a spring bar subtending, and d the adjusting rod or screw, passing through standard c; n is the pen lever, with pen and adjusting screws thereon.

D is the proper adjusting apparatus, which will be more particularly described in Plate III.; k is the key for winding the register; is a guage for the spring drum. If a spring drum is used, it should be wound until the full strength of the spring is attained. Guage i will then allow the register to run until the cogs pass a projecting tooth from the axle, when it will stop, and it should be again re-wound. If it is desired to take out a single wheel from the register, the full force of the spring must be wasted, or its power otherwise neutralized; and if this care is not taken, the other wheels are greatly endangered. For the same reason that you would not take out a wheel when the power of the weight is on the drum, you should not disturb the combination until the power of the spring drum is compromised. We especially call attention to this point, for we have seen more than one register broken by this carelessness. it be remembered, then, that you should never attempt to move a single wheel, either in a weight or spring drum, until you render powerless the spring or the weight. Don't attempt to accomplish this end by taking out the angle G, and removing the drum first, for that will lead you into ten-fold trouble. The moment you get it loose on the spring drum, it will fly off, and perhaps your face will first feel the force of its power; besides,

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broken wheels on the floor of your office will manifest themselves as the result of your indiscretion.

The spring and weight drums are made to fit in the same register. They have to be separate. They could not be made to perform the functions of both, without encumbering the register with too much machinery. The self-stopping apparatus or break is g, made to act upon a balance wheel connected with the fly wheel No. 5. The adjusting screws of the pen lever are ff.

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Plate III. is a section of the Register, and is one of the most beautiful arrangements for the adjustment of the paper and running of the machine that we have ever seen. The same amount of ingenuity, and as successfully applied, in a locomotive, would have been worth a fortune to any man. In this instance, however, the reward is the same usually received by telegraphers. Nos. 6 and 7 are the paper rollers, No. 6 acting on screws at pinion ends, and No. 7 projecting through the sides, as seen at

v v, whereon u u rest. In order to make roller 9 press heavier on roller 6, or the paper passing between them, you must screw rr, which presses down the spring bars s s upon t at centre, and u u at the outer ends, and forces the break u u heavy on v v, and thus the power is made effective.

A A are the sides; E is a connecting bar at top, placed there to make firm the machine, and to consummate the purposes just mentioned; w is an adjusting screw, projecting through the sides A A, designed to guage the paper; x is a movable screw, through which w passes and acts; y is a movable end which can be brought nearer x, or the other end of x, as desired, and made fast by the binding screw therein; z is a steel bar or screw projecting from side to side. The movable screw x can be made to move from side to side at pleasure. The paper passes between screw x and bar z, and the moving of a moves the paper, and in this manner the very extreme edge of the paper can be brought over the pen point, acting over 6 on the groove of roller 7.

a new one.

We have now devoted, we fear, too much room in the description of this Register. We must be excused, however, on account of the zeal we have to see the companies benefited in this particular. By the use of this Register, we feel confident a great saving will be consummated. If either wheel or any part of the machine breaks, it can be replaced without the purchase of Wheel Nos. 2, 3, 4, or any other, can be replaced by mail. The operator can telegraph to send him wheel 1, 2, 3, 4, or magnet A or b, or any screw, and it can be sent him, fitting the desired place as delicately as the original did; and all this done without the necessity of taking the Register from his table. We look upon this as one of the most economical moves yet taken in telegraphing. They will cost a few dollars more at first; but, after the Confederation is fairly under headway, we confidently believe they can be furnished for less than they are now offered to the lines. We deem it not improper to remark, that each Register will be properly marked and guarded against any violation of the patent laws; which laws we find to be excessively hard on those who make, vend, or use a patented machine unauthorized. We have obtained that right, for the benefit of the lines; and thus, while we hope to protect the companies from worthless machines, by procuring better, we do not infringe the sacredness of the laws of the country, or the rights of an inventor.

RECEIVING MAGNET.

We have procured two forms of Receiving Magnets, and have a third under advisement. We cannot describe them better than by taking each separately. Not desiring to place

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