US854688A - Controller-operating means. - Google Patents

Description

No. 854,688. PATENTBD MAY 21, moan A. J, BROWN.

CONTROLLER OPERATING MEANS, APPLICATION FILED AUG. 27, 1906.

- To all whom itwuty concern.-

UNITED STATES PATENT OFFICE.

ARTHUR J. BROWN, OF 'NoRWooD, 01110, ASSIGNOR T ALLIS-CHALMIERS COMPANY, A CORPORATION'OF NEW JERSEY, AND THE BULLOCK ELEC- TRIo MANUFACTURING COMPANY,A-C O]EtPO1EtATION or 01110.

' .CONTROLLER-OPERATlNG MEANS.

. No. 854,688; a

Specification of Letters Patent.

Patented May 21, 1907.

Application filed August 27,1906. Serial Nq- 352,247.

Be'it known that I, ARTHURJ. BROWN, a

citizen of the'United States, residing at Norwood, in-the county ofHamilton and State of Ohio, have invented certain new and useful Improvements in Controller-Operating and exact specification My invention relates to means for operating motor-controllers, and its object is to render more positive and accurate the operaftion of a controller employing quick-break mechanism.

In motor-controllers in which heavy currents are handled and especially'in railway controllers it is advisable to have the operating mechanism so constructed that a very rapid movement from one operatlve position contacts of the controller thereby minimiz- Y ing the necessityfor powerful blow-out magnets and other special devices for preventing the formation of arcs My present invention is an improvement on the invention set forth in Patent No.

815,578issued March '20, 1906, to The Bullock-v Electric -Manufacturing Company, a corporation of Ohio, on an application filed by In one aspect my invention consists of the combination of a shaft, preferably the-operating shaft ofa controller, a notched mem- .ber, a sliding bolt arranged to en age the notches of said notched'member to' ock the shaft in any desired position, a handle mounted upon the shaft and yieldingly connected thereto, and means for moving said bolt out desired position to permit the shaft to rotate under the action of said yielding connection of engagement with the notched member when the handle has been moved into the into a po'sitioncorresponding to that into whiclfthe handle-has been moved.

Other features of my invention will appear i Figure l is a front elevation of the upper part of a controller embod 'ng my invention,

some of the parts being s own in section on the line 11 of Fig.2. Fig. 2 is a plan view of the controllerof Fig. l'with some of the parts broken away; and Fig. 3 is a view Means, of which the following isa full, clear,

somewhat similar to Fi 2, but showing the relation of the parts w on the controller is about to move from one position to another.

Referring to the drawings, the controller 'casin is represented by 4, the cap plate by 5 an the controller shaft by 6. Mounted from the upper end of said shaft 6 and ke' ed thereto is an arm- 7, which carries a sli in bolt 8 having-an enlarged head 9' integra therewith or otherwise firmly attached thereto. The bolt Sis normallypressed outwardly by a spring 10 into en agement with the notches ll-of an internal y notched ring 12, This ring 12 is supported from the cap plate 5, as by a plurality of pillars 13. The notches 11 of the notched ring 12 correspond to the operating positions of the controller. The. off position is indicated by the notch 11, the operating mechanism being shown in that position 111 Fig. '2. The operating handle 14 is loosely mounted on the shaft 6 so that it can be, rotated relatively thereto,

but is prevented from movement longitudinally of the shaft as by the screw 15. Ex-

tending downwardly from the operating handle 14 are three pins 16, 17, and 18, while extending upwardly from the arm 7 are two pins 19 and 20. A spring 21 extends from the pin 16, to the shaft 6, being located be- 1 tween the pins 19 and 20.

When the handle 14 is moved from one position to the next, say in a forward or clockwise direction from notch 11%, the spring 21 engages pin 19, and being stretched thereby, tends to draw the arm 7 with its associated controller mechanism after the handle 14/ However actual rotation of the arm 7 isprevented by the engagement of the bolt 8 in the notch 1 1 until the handle 14 has reached the nextoperative position, when by reason of the engagement between the pin 17 and the enlarged head 9 of the bolt 8 and the resulting movement'of the bolt, the latter is withdrawn from the notch 11 and the arm 7 is moved forward by the spring-21 until the bolt 8 engages in the first notch 11 to the left of the notch 11*, (Figs.2 & 3).

' Fig. 3 shows the relation of the parts just before the handle 14 reaches the first operative position and with'the bolt 8 almost out. of engagement with the notch 11. The slightest further forward movement of the handle 14 past the position shown in Fig. 2)

will release the bolt 8 from the notch L1 and Will allow the arm 1 and shaft 6 to move forward. A movement of the handle still farther in the same direction will operate the bolt in the same manner as before and move it to the next notch in advance. When the handle is moved in the direction opposite to that described above and indicated in Fig. .3, the pins 18 and 20 will act in amanner similar to that described above in connection with the pins 17 and 19. Movement beyond the full on position'in either direction is prevented by one or more pins 24 projecting upward from the ring 12 in the path of the pin 16. v

The projections between the: notches are of different heights, depending u onthe distance thecontroller is to move etween positions. The projections 22 (Figs. 2 and. 3) are shown higher than the pro ections 23; i. e., the inner surfaeeof the ring at 22 isof smaller radius than at 23.- The heights of these projections are so proportioned that the bolt8 will not leave the notch correspondg QnePQSition. until the handle hasreachedthe .next position in advance, and the handle cannot be moved beyond said advance position without first releasing the is he bolt 8 andcausing the-shaft to move into the position eorrespondin to the osition occupied by the-handle. In fact, t e shaft din a certain position until the handle just reaches the advanced position, independent of the distance apart of said positions, so. that for movement between some positions the ins 17 or 18 must move the ead 9 and t S'a'greater distance than for movement between. other positions. Thus there is no danger of. the handle being moved sofar as toycause the controller to jump several notches'at a'single movement of the handle;

such modifications which come within the 'Olwiouslyafi many modifications may be made in the specific structure herein set forth,

and I; aimto cover inthe following claims all spirit and scope of my invention.

Having thus described mjinventiom'what I I claim as new and desire to secure by Letters Patent is:-. p I p g 1; In combinatihn; a shaft, a notched member, a bolt engaging said notchedmemher to hold the shaft 111 any desired position,

' an operating handle, a yielding connectionbetween the shaft and the handle, and means for releasing the bolt from the notched inemher when the handle has been moved into the desired position in either direction to permit 7 the-shaft to rotate undertheinfiuence of said I to the position of said yielding means into a lposition corresponding amass 2. In combination, a controller shaft; an arm fastened thereto and carryinga sliding. bolt, an internally notched ring Withwhich said bolt engages, a handle loosely mountedon said shaft, but yieldingly connected therewith, and. means or releasing said bolt 'from thenotched ring when the handle reaches the I yielding next position in advanee'to permit the shaft hold the shaft in any desired position, an op-= I dle, with the shaft,'. and means for releasing saidbolt to permit the shaft to move into said advance reaches a pre etermine erating handle, a spring connecting said hanositions 'ust as the handleadvance position inde e'ndent -.of the distance apart of the I note es corresponding to thecontroller positions. p

4". In a controller, ashaft, an operatlng responding to the controller positions tohold the shaft in a certain position until the handle is moved intothe next advance position handle, a spring connectingsaidshaft/and handle, a sliding-bolt engaging notches corindependent of the distance apart of said position, and means for releasing the bolt when the-handle reaches the advance position to permit the shaft tomove into sald advance position under the influence of said's ring. 2

5. In combination, a controller s aft,- an;

aft and handle, a notched member having the height of the projections between notches proportional to'the throw of the shaft betweenoperative positions, 'a sliding bolt 'engaging said notched-member to hold the olperatinghandle, a springconnecting said 3 s shaft in any desired position, and means for releasing'said bolt to permit the shaft to move into'said advance position just as the handle reaches an advance operative position.

mechanism having a series of. unequally spaced 0 erative positions and biasedxto' move wit said handle though movablemde- 6. In combination, a handle, controller pendently thereof, and-a sliding bolt-for loci?- mg the control ler mechanism-in any opera a I tivep sition until the handle is moved into the next-operative position.

in the presence of two witnesses.-

Witnesses:

RUBY RoBINso FRED J. KINsEY.

ARTHUR. J. BROWN.

3 5] In testimony whereof Iafiix my signature,

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