US733626A - Counter and index. - Google Patents

Description

PATENTBD JULY 14, 1903.

J. M. CUNY, COUNTER AND INDEX.

APPLIOATION FILED AUG. 2, 1902.

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N0 MODEL.

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' I. M. CURY.

GGUNTBR AND INDEX.

APPLIOATION HLLD AUG. z. 1902.

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, E l /f- 775% No. 733,626, PATENTED JULY 14, 1903'. J. M. 'GORY.

COUNTER AND INDEX.

. APPLIOATION FILED AUG. 2. 1902.

NO MODEL. 4 SHEETS-SHEET 3- hmmlmmm TTS- 5- WITNESSES: INVIENTORA 276m -,W nQM A Mv 75% Sym i N5. 733,626. PATENTBD JULY 14, 1903.

J. M. GORY. `COUNTER AND INDEX.

. APPLICATION FILED AUG. 2, 1902.

N0 MODEL. 4 SHEETS-SHEET 1.

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UNITED STATES Patented July 14, 1.902%.

PATENT OFFICE,

JOHN M. coRY,oE NEW YoRK,IN. Y.,Ass1eNoR To CHARLES coRY a son, ou NEW YORK, N. Y., A FIRM.

COUNTER AND INDEX.

SPECIFICATION forming part of Letters Patent No. 733,626, dated iuiy 14, ieo.

Application filed August 2,1902.

To all wiz/mJ it 71u03/ concern.-

Be it known that I, JOHN M. CORY, a citizen of the United States, residing' in the borough of Manhattan, in the city and State of New York, have invented a certain new and Improved Counter and Index, of which the following is a specification.

The apparatus is intended more especially for use on-naval and other ships driven by n steam, and I will describe it as thus applied. A portion of the apparatus is in contact with the shaft of the engine, being duplicated if there are two shafts, and another portion or portions, of which there may be several, in I 5 distant portions of the ship, is electrically connected.

The apparatus combines and operates from a single moving part at the eng'ine counting mechanism to show the number' of revolutions 2o in each direction and operates indexes to showthe direction in which the shaft is being revolved at any moment when it is observed, and by inspecting for a little period the index shows how rapidly the several revolutions z 5 succeed each other. I have devised novel apparatus by which these ends are attained.

The several novel elements and combinations will be fully described below and pointed out in the claims.

The following is a description of what I consider the best means of carrying out the invention.

The accompanying drawings form a part of this specification.

Figure 1 is a front view of the dial and plate. Fig. 2 is a corresponding view with the dial and plate removed. Fig. 3 is a vertical section of the case on the line 3 3 in Fig. 2. Fig. l shows, on alarger scale, the contact- 4o maker with a portion of the eccentric band.

Fig. 5 is aside view of the same. Fig. 6 shows, on a smaller scale, the entire main-shaft eccentric band. Fig. 7 is an edge view of the band. Fig. 8 is a diagram illustrating the 45 electrical connection. Fig. is a front view of a modiiication with parts broken away. Fig. l0 is an elevation of the switch detached, as seen from the right in Fig. 9. Figs. 2^ and 2 are vertical sections of portions on a larger 5o scale in two positions.

Similar letters of reference indicate corre- Serial No. 118,118. (No model.)

spending parts in all the figures where they appear.

I will describe the counters and indexes as located in the pilot-house and on the bridge, one in each place. (See Fig. S.) There may be more sets. All are alike and a description of one will suffice for all. The contactmaker is located in the shaft-alley.

An eccentric band B, Fig. 6, is firmly secured on the main shaft and revolves therewith, having three-fourths inch throw. Gearteeth are cut on this eccentric band and corresponding teeth on a pinion D4, carried on a sliding rod D, which is peculiarly mounted and equipped. On its upper end is an insulated conducting-head D', adapted to form electrical contact between two conductors. The gravity of the sliding parts and the force of a helical spring Ds serve together to keep the pinion in contact with the band B. The construction insures that as the shaft revolves a sliding motion is imparted to the rod D, rising and sinking three-fourths inch at each revolution. The rod D is also capable of being inclined in opposite directions. It is guided through a long boX E and can rock on a stout pivot E', bearing in a east-iron or other firm support A5, carried on the xed work of the ship. The engagement of the eccentric band B with the pinion D4 not only induces the endWise-sliding motion in the rod but also develops a lateral force at the lower end, which is in one direction or the opposite, according as the shaft is revolved in one direction or the other.

I provide rolls A3, turning in bearings A4, held adjustably on the bulkhead on each side of the sliding rod D near the top. These rolls limit how far the rod D is allowed to inoline in either direction. When the engine is running forward, the rod is inclined in the direction shown in Fig. 4, and when it is running asternit is inclined in the opposite direction. The inclination need not be great. I make the direction of such inclination determine which of two counting devices shall be actuated on each of the several distant dials, as the rod D is lifted and lowered with each revolution of the engine. Y

Two sets of double-poleelectromagnets are mounted in a water-tight case A', of which one set serves for ahead and one set for astern Each set of magnets has an armature. I have shown a battery F as a source of electric current therefor.

A spring G2, insulated on a hard-rubber base on the bulkhead j ust above the sliding rod D, connects by a wire G' to a pair of ahead magnets G. Another wire H', leading' to a pair of astern magnets H, is attached to a similar spring H2, held alongside of G2, at a little distance therefrom.

O is a return-wire in an intermediate position. This may also be provided with a spring contact-piece, if preferred. It is arranged to contact by its terminal O' with the head D at each rise of the rod D whether it is inclined one way or the other. Then the shaft is turning ahead, the rod D reciprocates at such angle that at each rise the head D' contacts with and forms an electrical connection between the return-wire O and the wire G', and it follows that the ahead magnets G are intermittently energized and the ahead counting-wheels G3 in the conning-tower and in the pilot-house, operated by the well-known Geneva stop-motion, willact. lVhen the shaft is turning astern, the connection is made and broken between the return-wire O and the wire H', leading to the astern magnet H, and the astern counting-wheels HS act. In each case only one armature is vibrated and the other, with its train of Geneva mechanism, is idle.

It remains to describe the counters and indexes. Two counters and two indexes at each place, where required, which I have assumed to be the pilot-house and the bridge, are inclosed together in a case A', with a plate-glass face and a white enameled dial A2. Above theA dial A2 is a plate AT, in which are two sufficiently long horizontal apertures g and h, through which are shown figures carried on the peripheries of Geneva wheels G3 and H3, capable of indicating the whole number of revolutions in each direction, respectively; The series of counting-wheels G3 register the go-ahead77 revolutions. They are worked by the ahead magnets G through an armaturelever G, turning on a iixed center A. This, by a pawl G7, gives the required step-by-step revolving motion to the rst wheel of the Geneva series GS. The communication of motion from the first wheel to the succeeding wheels of the series, so as to give a tenth of a revolution to the next wheel at the end of each complete revolution of the iirst, is thc well-known arrangement invented by a young Frenchman (Pascal) some two centuries ago and sufficiently described by the single word Geneva. This Geneva mechanism is part/ly shown in Fig. 2. The other set of counting'- wheels H3, which register the go-astern revolutions, are worked by the magnets H through corresponding connections. This occurs whenever, by reason of the reversed inclination of the reciprocating rod, the current through the wire G' is stopped and the current is caused to flow through the wire H'.

On the dial A2, below the counting-wheels GS and H3 are two cons )icuous ointers or in-- dexes P3 and Q3, mounted side by side, a little distance apart. On the dial adjacent to each is marked, respectively, the words Ahead and Asterir (See Fig. l.) They arc mounted on separate spindles P2 and Q2, eapable of turning independently.

The magnets P are energized by a shuntcurrent received through the wire P'. lVhenever a current is sent through the wire G', which energizes the magnet G and operates the go-ahead counter G3, a portion is carried through the shunt wire P' and also energizes the magnet P and operates the armature P5. Care must be taken to use wire of proper size and material or otherwise to so graduate the resistance as to insure that neither gets much less than its proper share of the current, so that both the counting and the indexing devices shall be properly operated.

P( P7 are ordinary crank-handles with suitable locking means for turning the respective counting mechanisms into any required position. They are used ordinarily to set the respective mechanisms back to zero.

The armature P5 operates the spindle I"2 and its index P3. A score or fiat recess p is cut'in the round spindle P2 where the armature P5 bears against it, which score lies sometimes iiat against and at other times at an angle of some twenty degrees to the arma.- ture. lVhen the armature is attracted toward the magnet, it is drawn against the spindle and turns it until the score is fiat against the armature, thus turning the spindle P2 and the idex P3 through an angle of twenty degrees and indicating that the direction is ahead and also indicating the rate of the revolutions bythe time in which these revolutions follow each other. At a certain period in each revolution the circuit in the electromagnet P is broken, the magnet-ceases to attract the armature, and a helical spring P1, properly adjusted around the spindle, turns the spindle back to its normal position, and the score again lies at twenty degrees tothe armature, as shown in Fig. 2. The circuit is thus made and broken at each forward revolution of the shaft. A corresponding armature Q5 is connected to induce an opposite motion in the other index This is of no effect during the forward revolutions, which I have termed ahead revolutions,77 but immediately asserts itself and indicates when the engine is revolved in the reverse direction. Thus it depends upon the direction of the revolution of the shaft as to which set of magnets is energized, and therefore which index Pii or QS will thus vibrate.

A wire connects themagnet Q to a lower contact-strip G9, bearing against the switch X, which latter is placed at the bottom of the case A', equipped with a handle or thumbpiece X'. A spiral spring Z exerts a force to bring the switch back to mid-position. Two

ICO

contact-strips of metal G9 G10 on each side bear against the hard-rubber rin g X Inserted longitudinally in this hard-rubber ring are two pieces of metal, (not shown,) which make connection between the upper strip G10 and the lower strip Gf on each side when the switch is turned to close the circuits. This switch is in circuit with the common return O of both sets of magnet-wires, as shown in diagram of connections, Fig. S. IVhen the switch is turned to the right against the force of the spring Z and the circuit closed, the connection is thereby made from lower strip G9 through a cross-connection to upper left-hand strip G10, and then by a wire to the middle binding-post at top of instrumentthe common return. The left-hand wire leads to the left-hand magnets and the connections to common return O are the same as those for the other side.

A five-candle-power lamp IV is installed in indicator-case A', which gives illuminationto all parts of the dial A2. This lamp has independent connections, one wire leading directly to base of the lamp WV. The other leads first to the switch X and then back to a terminal screw XV' on lamp-socket- This is shown by the two crossed wires IV? XW in Fig. 2.

It will be seen that the same contacts of the head D with the return contact O and with one or the other of the springs G2 or I-I2 simultaneously energize the proper magnets and induce the required motions both in the counting devices and in the index devices.

Y is a button at the top operating what I may term a counting-switch. It controls by the ordinary arrangement of wires, as indicated, the communication of the current from the indicating mechanism up to the counting mechanism. Then this switch is adjusted in one position, it causes the ahead counting mechanism to be operated. Then it is in the opposite position, it causes the astern counting mechanism to be operated. There is an intermediate position in which it can be set to hold both circuits open, and when thus conditioned the working of the indexes IS and Q3 will continue as before, but neither of the counting mechanisms GE or I'I3 will act.

Fig. 2^ shows the spindle when the index has been deflected by the pressure of the armature, and Fig. 2B shows the same when the pressure of the armature is relaxed and the spindle and the index have been returned to their ordinary positions by the constant force of the gentle spring PL.

I attach importance to the iia-t portion p on the spindle I, arranged to be turned by the direct pressure of the armature, for the reasons that it is simple and reliable, is easy to make and adjust, and serves directly without further parts to arrest the motion of the index by thcprcssure of the armature against the fiat portion s0 soon as the index has been turned to the required extent.

Modifications may be made without departing from the principle or sacrificing the advantages of the invention. I have described the invention as applied with a single shaft. When there are two, there should be two sets of apparatus. Instead of a battery a dynamo may be employed as the source of electric current. It may be preferable to thus work whenever the electric light is to be operated by the same current. Instead of the flat place j) in the spindle P2 and a corresponding ii'at place in the spindle Q2 there may be a nicelycut gear-segment on each spindle and a corresponding segment on the end of the armature engaging therewith, so that the changes of position of the armature will induce the same relative changes in the position of the index. Fig. 9 shows such modication.

Parts of the invention may be used without others. The switch X may be dispensed with and the device will be ready to work all the time, a counter and index being always worked whenever the engine is revolved, the choice whether it shall be Gig P3 or-H3 Q3 depending on whether the engine revolves in one direction or the other. The gear-teeth on the periphery of the eccentric band B and the corresponding teeth on the pinion D'l may be omitted and the smooth surfaces will serve together successfully. The rod D will rise and sink the same under the influence of such smooth parts and will usually produce the same effects; but I prefer the teeth for the reason, among others, that the slight increase in the friction induced by the engagement and disengagement of the teeth is of advantage in insuring that the inclinations at which the rod D is reciprocated shall be changed with promptness with each reversion of the motion of the engine. The light XV maybe dispensed with. The proper switch lor switches may be set so as to have the circuits complete the main portion of the time, or they can be set so as to have the circuits open under ordinary conditions and only be closed and operate the counter and index for brief periods when required. As there are usually but few astern revolutions, it will in most cases be suflicient to use only one instead of the two counting mechanisms above described.' Fig. 9 shows such construction, which may for some uses be preferred. The single counting mechanism in this form of the invention can, if preferred, be. allowed to count all the revolutions both forward and backward. For such use the switch Y should be put on and left on all thev time. If, on the contrary, it be desired to count only the ahead revolutions, the switch should be turned off when the motion is retions ahead are resumed. Such construction can be used to count also separately both the astern and the ahead revolutions. To effect this only requires a little more attention, as follows: Vhen the engines are reversed, the number of revolutions previously indicated are written down or somehow preserved for reference and the single counter is turned IOO IIO

versed and again turned on when the revolul' back to Zero. The counter will then proceed to count the astern revolutions, and when after a longer or shorter period the engine is again reversed the number of astern revolutions are noted and the counter is again turned back to zero. Now the ahead revolutions are resumed and the counting of the ahead revo`- lut-ions proceeds as before, except that it starts again from zero.

I claim as my inventionl. In a ship telegraphic counter and index, the combination with the main shaft and suitable electrical connections, of an electroniagnet P, an armature P", a spindle P2 having a iiattened portion p, a connected index P3 and a spring P", all arranged for joint operation substantially as herein speciiied.

2. .As an improved instrument having connection With a source of electric current, an eccentric B rotating with the main shaft, a rod D reciprocated thereby, and a provision for causing such rod to change its line of reciprocation, in combination With contacts G2 and II2 arranged to be affected by each reversion of the motion of the engine, tW'o sets GS H:3 of counting devices and two indexes P3 and Q3 arranged to distinguish motions ahead and astern, all substantially as herein specified.

3. As an improved instrument having connection with a source F of electric current, an eccentric B/ carried on the main shaft, a rod D reciprocated thereby, a swiveling guideboX E for such rod, a toothed Wheel on such rod, and the corresponding teeth formed on such eccentric, in combination With contacts G2 and H2 arranged to be brought alternately into eiect by each reversion of the inclination, two sets G2 II:s of Geneva Wheels and tWo indexes P3 and Q3, all arranged both to count and distinguish motions ahead and astern, all substantially as herein specified.

In testimony that I claim the invention above set forth I ax my signature in presence of two Witnesses.

JOHN M. CORY. IVitnesses:

H. N. MEEKER, PETER J. KERNER.

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