US815578A - Controller-operating means. - Google Patents

Description

No. 815,578. 'PATEN ED MAR. 20, 1906. I v v A. J.'B R0WN.

" CONTROLLER OPERATING MEANS.

APPLICATION TILED JULY 11, 1904.

Inventor.-

' hieases 1 Means,

' formationo iiNITnn 's ATEs ARTHUR JQBRoWN, F NonwooD, onro, ASSIGNOR To THE-BULLOCK ELECTRIC MANUFACTURING COMPANY, A CORPORATION OF OHIO.

CONTROL ER-OPERATING EANS.

To all whom, it mtty concern Bejit known that I, ARTHUR J. BROWN, a

citizen of the United States, residing at N'0rwood, in the county of Hamilton and State "'ful Improvements in-Controller Operating My-invention relates tomeans for operat- 1 o 'ing' inQtOP OntrolIers'; audits object is to rendermor'e'positive and accurate the 0 eration of a controller employing quick-brea l mech .ani'sm." I

-In-motor-,controllers 1n whichiheavy currapid movement-from one operative position to the next isxobtained, This rapid move:

2 ment provides a' quick break between the con'- tacts' of the controller, thereby minimizing the necessity for powerful blow-out magnets and other special-devices for preventing the arcs, which are very injurious to the operating parts of the controller and are liable to prove dangerous to the motorman'or operator. I I

' -I n c ar rying out my 'invention I employ in combination-a shaft, preferably the operat" ing-shaft of a controller,a,notched plate, iv

oted dogs engaging said notchedplate to old theshaft in any desired position, yielding con- I nection bet-ween the 'lia'ndle and, shaft, and

means for tripping said dogs when-,the handle 3 5 has been moved into the desired position to -..per'mit the shaft'to rotate under thea'cti-on I of I said yielding connection into a position corresponding to the position into which the handle has been moved; a 4 In theaccompanying'drawings,whichillustrate the preferred embodiment of my inven- 1 tion, Figure 1 is a front elevatibn. of a controller. equipped with-my impro mechanlsm. Rig 2 isa plan-view,-and Fig. 3

I is a side view, of said opprating mechanism;

.Referring now to t e drawings, the"'.con

trollercasing 'is' represented by '4, f the cap- {fin te by 5, and the controller-shaft a t ounted-upon the u per end ofsaids 5 o.' 6 and keyed thereto-1s an arm 7, which car- I ries at its outer end the locking-dog's 8 and 9,; pivoted at 10 andf11,respectively. The inne'r ends of thesejdogs are maintained- .in engagement with the periphery of the:

4 Specification of Letters Patent. Application filed J uly Ell, 1904. Serial No. 216,023. I

f which the following is a full, clear, and'exat'specification. i I

operating being understood t Batented March 20, 1906.

notched 1plate 12 by means of the leaf-spring 13, whic is fastened to the arm'7 at 14 an engages the pins 15, carried by the outer ends PATENT omen.

of dogs-8 and 9. The plate 12 is provided with notches 16', which indicate the operative positions of the controller- The ofi position is indicated by notch 16, the operating mechanism being shown inthat position in the figures; Ihe, operatinghandle 17' is loosely mounted on shaft 6 and is connected thereto by means of the spring 18 or other yielding connection. The ends of spring 18 restagainst opposite sides of lugs 19 and 20,

in-such amanner that when the'hand e, is

formed on the under side of handle 17 and u'pa moved in either direction the spring. is wound up and tends to rotate the shaft 6. This tend- .ency to rotate is restrained by the locking: dogs, whichare released by means of the anti-. friction-roller 21, carried by the lug 22, 'projecting from'the under side. of handle 17 =-As the ha'ndl'e17 ismoved forward, say, in.

a clockwise direction, the "roller 21' engages the outer cam-surface of dog 8., moving the inner end of said dog out of engagement with the notch 16 andpermitting' the arm 7 and shaft to move forward under the action of spring 18 juntil'said dog engages the first notch 16 to the left of notch 16*, Fi 2. A

movement of the handle farther int e same I direction 'willioperate, said dog'in the same {manner as before and move it into the next I notch in advance?" The pro'ections between the notches are ofdifferent; eights, de endis to move between positions. The projec- .9 (mt upon the distanc'e'the controller-0y inderf j projections 26-'that' is, the 'eripher'y ofthelate at. 25 is'of greater ra insthan at'26.

hehei ht of thesepro'e'ctio'ns is so pr0p'or-' i not l'eave the notch" tionedit at the dog-,wil corresponding to one position until the handle has reached the-next position in advance,

and the said handle cannot be moved'beyond. said advance position without first tripping the dog andcausing the shaft to move into rob the osition correspondin to the position oc- .cu led bytheahandle'. n fact, the, shaft is he d ina certainpo'sit'ion untilthe handle ustreaches the advance position independent of, the distanceapartfof said positions, it

at roller zr'mq es a 'oted locking-dogs, a notched plate with nected therewith, and means for tripping greater distance along the outer cam-surface of the dog before tripping same when the controller positions arespaced far apart than it does when the positions are spaced a short distance apart. Thus there is no danger of the handle being moved so far as to cause the controller to jump several notches at a single movement of the handle. \(Vhen the handle is moved in the opposite direction, the dog 9 acts in the manner just described to produce a positive quick-break movement from one position to the next. The inner ends of the dogs 8 and 9 are inclined at 27, so that they will readily slide over the projections 25 and 26 when the controller is moving backward relative to the dog inquestion.

In the appended claims I aim to cover all 3 modifications of my invention which do not involve a departure from its spirit and scope Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In combination, a shaft, anotched plate, pivoted dogs engaging said notched plate to hold the shaft in any desired position, an operating -handle, a yielding connection between the'handle and shaft, and means for tripping a dog when the handle has been moved into the desired position in either direction to permit the shaft to rotate into a position corresponding to the position of said handle under the influence of said yielding I means.

2. In combination, a controller-shaft, an arm fastened to said shaft and carrying pivwhich said dogs engage, a handle loosely mounted on said shaft, but yieldlngly consaid dogs when the handle reaches the next position in advance to permit the shaft to rotate under the action of said yielding means into said advance position. 1

3. In combination, a controller shaft, a notched plate having notches spaced at irregular distances apart, said notches corres onding to certain positions of the centre er, a

ivoted dog engaging said notched plate to hold the shaft in any desired position, an op: erating-handle, a spring connecting said handle with the shaft, and means for tripping said dogjust as the handle reaches a predetermined advance position independent of the distance apart of the notches corresponding to the controller posit-ions to permit the shaft to move into said advance position.

4. In a controller, a shaft, an o )eratinghandle, a spring connecting said shaft and handle, a pivoted dog engaging notches corresponding to the controller posit ions, to hold the shaft in a certain position until the handle has been moved into the next advance position independent of the distance apart of said positions, and means for tripping said dog when the handle reaches the advance position to permit the shaft to move into said advance position under the influence of said sprin I 5. In combination, a controllershaft, an

operating-handle, a spring connecting said shaft and handle, a notched plate having the height of the projections between notches proportional to the throw of the shaft between operating positions, a pivoted dog engaging said notched plate to hold the shaft. in any desired position, and means for tripping said dog justas the handle reaches an advance position to permit the shaft to move into said advance position.

In testimony whereof I aiiix my signature in the presence of two witnesses.

ARTHUR J. BROWN.

I/Vitnesses:

LOUIS (.1. MAR-BURY, FRED J. KINSEY.

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