US1132525A - Controller-regulator. - Google Patents

Description

J. Y. PORTER. UONTROLLER REGULATOR.

APPLIOATION FILED MAY 2a, 1914.

. 1,132,525, V Patented Mar. 16, 1915.

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J. Y, PORTER.

' CONTROLLER REGULATOR.

APPLICATION FIL'ED MAY 23, 1914.

' 1,132,525. v Patented Ma.r 16,1915.

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JOSEPH Y. PORTER, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE-HALF TO CHARLES V.

HETTS, 0F DETROIT, MICHIGAN.

CONTROLLEIVBEGULATOR.

Specification of Letters Patent.v

Application filed May 23, 1914. Serial No. 840,647.

To all whom 'it may concern Be it known that I, JOSEPH Y. PORTER, a citizen of the United States, residing at Detroit, county of Wayne, State of Michigan, have invented a certain new and useful Improvement in Controller-Regulators, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

This-invention relates to controller regulators and has for its object a device of this description which comprises vertically and oppositely disposed stationary rows of teeth into one row of which a catch is temporarily thrown when the movement exceeds a slow movement. By reason of the peculiar construction Y of this catch the teeth which throw the catch into engagement with the opposed teeth are very short, consequently the device is one of minimum thickness so that it can be applied to conventional forms of controllers above the controller casing.

Another object of this invention is a controller regulator in which a two-part catch is used comprising a swinging pawl and an actuator pivoted to the pawl to swing upon a fixed center as contradistinguished from a plurality of centers, as shown in my previous Patent No. 995,091.

Figure l, is a plan view showing the catch-carrying arm and the base plate with the trips. Fig. 2, is a vertical section diametrically through the controller regulator.

Fig. 3, is a top elevation of the controller regulator. Fig. 4c, is a detail of the base plate (showing the upper face). Fig. 5, is a detailed vertical section through a portion of the housing showing the catch in neutral position. Fig. 6, is a similar view showing the catch set to engage with the stops, and Fig. 7 shows the position of the catch after the motion of the controller shaft has been checked and the operator has withdrawn the force upon the controller handle.

The controller case is designated a. The controller regulator housing comprises a casting b in the form of a ring provided with lugs c for attachment to the controller case a and an inwardly extending web or annular flange d which thickens near the circular central opening and is also stepped as at e for the purpose of seating the jawcarrying platev f which is a casting thickened at its center to form a hub g which sets in the central opening of the annular flange (l. The hub and jaw-carrying plate have a central opening and the two are stepped as at h to seat the head of the tubular screw This screw connectsthe j aw-carrier and the hub lc to the catch-carrying arm o. The tubular screw therefore connects the jawcarrier and the catch-carrying arm and journals them with respect to the housing. The annular flange or the upper wall of the housing is provided with a plurality of ratchet teeth or stops Z,steep on one face and more gently inclined on the other. Opposed to these teethv or vstops are a plurality of trips or ratchet teeth m. These teeth are set each slightly in advance of the opposed tooth or stop and are somewhat low compared with the height of thestops. These teeth m are integral parts of the base plate n' which is screwed to the housing b.

The catch-carrying arm 0 protrudes radially from the hub le. l The catch-carrying arm o is recessed atlone side as shown in Fig. l sothat the arm in reality, forms a' swing in said slot. When lthe actuator 1'v rides up the inclined face of the trip it lifts the pawl and inasmuch as the lifting force is applied to the pawl about two-thirds of the way from the end of the pawl to the fulcruIn, .it isevident that a given amount of lift applied at this point will be accompanied byV approximately three times the amount of movement ofthe extreme end of the pawl. Consequently the teeth or trips m may be made very low which is of importance for it narrows `the casing so that it will readily t in between the end of the ,controller sha-ft and the top of the controller casing. i

When the actuator strikes the trip and as it rides up the trip the actuator and the pawl remain for all purposes ixed together. In fact they might be so constructed were it not for the diiiiculty encountered in the return swing of the handle, for it is obvious that the stops and the trips could lnot be as nearly directly opposite as shown in the drawings and allow the catch to drag over with any facility. If the trips more nearly approximated an accurate staggered relation with respect to the stops, then the pawl could not be tripped by the trip at a point so near the fulcrum. Therefore, not so great a swing of the extreme end cf the pawl could be obtained with a trip of given height. However, with the ractuator free to swing with respect to the pawl the placing of thetrips practically opposite the stops neither interferes with the turning of the handle in shutting off, nor does it tend to Wear out the catch. f

The general mode of operation of controller regulators of this type is old so it is readily understood when the actuator drops off the backs of the trips the lifting force upon the pawl is withdrawn but usually the catch is being rotated at suiicient speed so that the inertia of the pawl prevents its dropping before it strikes the stop. When the pawl and the stop strike each other they remain engaged until the operator withdraws the force upon the handle, whereupon the pawl slides freely away from the stop` and the handle may be revolved further until the neXt trip and stop are encountered.

The jaw-carrying plate is provided with the usual cylindrical sections s which terminate at one side in outwardly extending `continuations which form the jaws t. The usual controller shaft protrudes through the tubular screw z and up above the housing of the controller regulator sufficient distance for its squared end portion to engagewith the squared aperture of the head of the controller crank u. It is obvious that when the controller crank is connected to the shaft by dropping the hub over the square portion and is also dropped between the jaws t that the controller shaft and the catch-carrying arm are operatively connected.

What I claim is:

1. rlhe combination with a controller casing provided with a rotatable controller shaft, of a controller regulator mounted upon the top of the controller casing and having in combination a housing comprising a base plate, a ring as a side inclosure and an annular flange as a top inclosure, stops depending from the annular flange and trips raised upon the base plate, an oscillating catch thrown into the stops by the trips, and means for connecting the oscillating catch with the controller shaft.

2. The combination with a controller casing, provided with a controller shaft projecting through the top thereof, of a contrcller regulator mounted wholly on the top of the controller casing and having in combination a housing provided with depending stops, and upraised trips in substantially opposed rows, an oscillating catch thrown into the stops by the upraised trips, and means for connecting the catch with the controller shaft.

3. The combination with a controller provided with a casing and a controller shaft projecting out of said casing, of a controller regulator mounted wholly upon the top of a controller casing and having in combination a stationary housing comprising a base plate, a stationary ring as a side inclosure and a stationary annular flange as a top inclosure, stops depending from the annular flange and trips upraised from the base plate, a j aw-carrying plate journaled in the top of the housing, a catch-'carrying arm connected to the jaw-carrying plate, a pair of jaws carried on said jaw-carrying plate, a catch pivoted to the catch-carrying arm and thrown by the trips into temporary engagement with the stops above, and a handle detachably connectible to the controller shaft and adapted to lie between the jaws to operatively connect the controller shaft with the catch-carrying arm. Q

4l. The combination with a controller provided with a controller casing and a controller shaft projecting through the top thereof, of a controller regulator mounted wholly upon the top of the controller casing and having in combination a housing comprising a ring as a side inclosure, an annular flange as a top inclosure, and a base plate removably securable to the ring as a bottom inclosure, stops depending from said annular flange, trips raised from the base plate, a jaw-carrying plate journaled in the top of the housing, jaws carried thereon, a catch-carrying arm located within the housing, a tubular screw for connecting the jawcarrying arm and the hub of the catch-carrying arm, a catch adapted to be thrown by the trips into temporary engagement with the stops and a handle detachably connectible with the controller shaft and adapted to rest between the jaws for operatively connecting the shaft and the catch-carrying arm.

5. A controller regulator, having in combination, downwardly pointing stops, upwardly pointing raised trips, the stops and trips being in substantially opposed rows, the trips below and the stops above, a catch comprising a pivoted pawl carrying an actuator, the actuator being located near the fulcrum point of the catch so as to make possible a large throw of the end of the pawl with a low trip, and means with which relative movement can be imparted between the catch on the one hand and the stops and trips on the other hand.

6. A controller regulator, having in combination, opposed rows of stops and trips, arranged one row above the other row, a catch comprising a pivoted pawl provided with an actuator near its fulcrum point that engages with the trips to force the pawl into an operative position to engage with the stops, and means with which relative movement can be imparted between the catch on one hand andthe stops and trips on the other hand.

7. A controller regulator, having in combination, opposed rows of stops and trips, one row being above the other row, a catch pivotally supported between the two rows and comprising a pawl and an actuator pivoted to the pawl, and means with which relative movement may be imparted between the catch on one hand and the stops and trips on the other hand.

8. A controller regulator, having in combination, opposed rows of stops and trips,

the individual stops and trips being set in almost directlv opposed pairs, a catch between the rows of stops and trips, and comprising a pawl and an actuator pivoted to the pawl near the fulcrum point of the pawl to magnify the swing of the extreme end of the pawl when engaging the trips, and

means with which relative movement may be imparted between the catch on one hand and the stops and trips on the other hand.

In testimony whereof, I sign this specification in the presence of two witnesses.

JOSEPH Y. PORTER. Witnesses: VIRGINIA C. SBRATT, MARIETTA E. RUDD.'

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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