US1116552A

US1116552A - Motor-starting switch.

Info

Publication number: US1116552A
Application number: US76893213A
Authority: US
Inventors: Carl H Bissell
Original assignee: Crouse Hinds Co
Current assignee: Crouse Hinds Co
Priority date: 1913-05-21
Filing date: 1913-05-21
Publication date: 1914-11-10
Anticipated expiration: 1931-11-10

Description

C. H. BISSELL.

MOTOR STARTING SWITCH.

APPLICATION FILED MAY 21, 1913.

3 SHEETS-SHEET 2.

Patented Nov. 10, 1914.

INVENTOR.

ATTORNEYS U. H. BISSELL.

MOTOR STARTING SWITCH.

APPLICATION FILED MAY 21,1913.

1,116,552. Patented N0v.10,1914.

3 SHEETSSHEET 3.

IVITNESSES tlfbllTED STATES PATENT fli blifirli.

BIZSELL, OF FSYRAGUSE, NE? YORK, ASSIGNQZL Ti} CBOUSE-HIIIJDS {BF SYR iG'USE. KEV- YORK, A CORI GRATIDIJ OF NEW YQEK.

MUTOR-STARTIITG- SW'ITCH.

Specification of Letters Patent.

Application filed May 21, 1913.

To- ZZZ 0 10m it may concern U L l in the county of Onondaga and new-and useful Motor-Starting Switch, of which the Echo "ing is a specification.

'i his invention relates to switches and par- :Zcularly motor starting switches and has o1 object means for controlling the operation of the shiftable switch member and the invention consists in the combinations and constructions hereinafter setforth and clain'ied. l

in describing this invention, reference is lad. to the accompanying drawings in which characters designate corresponding 2Fi"' in of the views.

1 re 3 is a side elevation of a switch odving my invention. the casing for said switch he r j also shown in section. Fig. 2 a plan. partly in sectioinof parts seen in l.- 1, the cap of the case and parts carried thereby being removed. Fig. 3 is an end elevation of parts seen in Fig. l, the case bein section. 4 is afragmentarv. lon- Jdinah sectional view illustrating the position of the shiftable switch member and coactingz parts when the switch member is thrown into position to start the motor. l and 6 are fragmentary views illustrat mr the operation of the means i k ior controlling the throwing of the switchw.

'1 the base of the switch having two or two .QiS of terminals or

contacts

2 and 3.

i '5 the movable member of the switch having: arms or knives 5, 6 movable respectivelv into engagement with 'the terminals or women fl.

base 1, here shown. is suitably mi nteri in a box or case 7 having means. as

2* niuallv threaded ni les 8. for connection "7 conduits inclosing' the service wires. and terminals )or

binding devices

10, 11 are mounted on the base For connection with the service wires.

5 fuses i l. The terminals ii are also connectin the to! iiimls 2 by conductors 14. The movable switch member t oscillates f0r- 15 supported by the base 1 midway can the

terminals

2, 3, and the arms 5, 6

'l' e'is, nown that I, CARL H. BIssnLL, of,

to of New York, have invented a certainextend in a radial direction from the shaft,

7 the arms moving into Contact with one terminal or set of terminals as 2 when the mow able switch ncn'iber shifted in one direc" tion as forwardly, that is upwardly in Fig. 2, and the'arms 6 moving into contact with the second terminal or set of terminals as 3 when the switch member r is moved in a second direction or rearwardly, that=is downwardlv in Fig. 2, the movable switch menn,

her being normally in its neutral position in which both arms 6 are out of engagement with the terminals or contacts 2, The movemcnt'of the switch from its neutral position; that is upwardly in Fig. l is against the action of a returning spring 15. There are here shown three terminals or

contacts

2 or 3 in each set and the switch member is tl'iereit'ore provided with three arms or knives 5 or 6. In operation the switch is shifted from its neutral position until the knives engage the terminals or contacts 2 whereupon the current passes from the feed wires to the terminals 10, condoctors 12, knives or switch arms 5 terminals 2, conductor 1% and terminals 11. After the motor has been started; that is has-developed its normal speed, the movable switch member 4 is moved from its position shown in Fig. 4 toward and beyond its neutral position to carry the arms or knives 6 into engagement with the contacts or terminals 8. whereupon the current passes from the serv ice wires to the terminals 10, conductors 12, switch arms 6, terminals 3. iuses 13 and the terminals 11.

Mechanism or means is provided for'preventing movement of the switch member i from its neutral position into a position in which the knives or arms 6 engage the terminals 3. for the purpose of avoiding burni'ng out of the fuses 13 connected to saidv terminals 3, by the excessive rush of current which occurs when the motor is started said mechanism being automaticalh shiftable out of operative position after the movable switch member -i has been moved forwardly to carry the knives 5 into complete engagement with the terminals 2 and permitted to be acted upon by the returning spring 16. As here shown, said mechanism includes an element arranged in the path of movement of the shank of the switch member 4 to prevent movement of said member rearwardly to carry the knives 6 OUMPANY,

member forwardly into engagement with the terminals 3; said element beingautomatically movable by the shank 4: out of the path of the shank after completing its forward movement; and usually said mechanism. includes a detent 17 and means for moving the detent out of position including an element 18 projecting into the path of the shank i oi": the memher 4 to be engaged thereby when the switch member is moved forwardly from its neutral position, to engage the knives with the contacts 2, the element 18being designed to ratchet from one side of the shank to the other side thereof as the knives 5 complete engagement with the terminals 2 so that said element 18 is in position to be carried by the shank i of the member 4 into engagement with the detent 1'7 and move the detent out of operative position when the switch member 4- is being moved in a retrograde direction by the spring 16 to carry the knives 6 into the contact or terminals 3.

As here shown, the shanlr 4* of the noon able switch member l projects through a slot 19 in a cap 20 of aboX 7, and the detent 17 and element 18 are pivoted to a bearing 21 depending from the inner face of said cap 20 at one side of the slot, the

parts

17 and 18 having a common pivot. The detent it? is angular in form and pivoted at its angle, one arm thereof carrying a hook shaped shoulder 22 normally arranged'in the path of the shank P oi the switch member 4: and the other arm. thereor being connected by a spring 23 to a lug 2i depending from the inner face of the cap 20, the

spring 23 serving to normally hold the c etent 17 in its operative position and to re-- turn the same to its operative position.

The element 18 is an arm or lever projecting across the slot lir and into the path of movement of the shank of the switch,

member 4, and the lever or arm is provided with a shoulder at its end, which shoulder projects into the plane oi the do tent 17 in order ,to' enga e said detcnt. Said lever 18 is held in, and returned to, its normal position a spring connected to the rear end of the lever 1S and to the end of the rear arm of the detect 1?. The lever 18 is of less length than the throw of the coacting portion of 4* of the soanl; lfor- Wardly, and long enough to remain in contact with the shank until the switch member completes its movement in the starting or "forward direction; that is, until the knives 5 engage the contacts 2 or the knives 6 engage the contact 3 \vlicrenpoi'i said lever 18 ratchets past the shank f of the member to its normal "position.

In operation, the switch member isnormolly in its neutral position with itssllanlr l interposcd between the detent 17 and the lever 18 as seen in Figs. 1, 3. :1 and 8.

Upon the forward movement of the switch member the shank thereof engages the lever 18 moving the same on its pivot 21 until the knives 5 complete their engagement with the Contact 2 whereupon the lever 18 ratchets or is moved by its spring 25 as illustrated in dotted lines, Fig. .5, the spring 25 moving the lever 18 to its normal position. the movement of the lever forwardly is against the action of the returning spring 16 and the operator holds the switch memher with the lmives 5 engaging with the contacts 9:" until the motor develops approximately full speed, whereupon the operator releases the switch member e and said switch member is moved rearwerdly by the spring 16, the shank thereof engaging the lever 18 and moving the same'nntil the shoulder 18 thereof engages the detect 1?, the lever 18 thus pushing the detent 17 out of the path of the switch member 4* as shown in Fig. 6. After the switch has been moved rearwerdly, the

parts

17 and 18 are returned by their springs 93 and 2:3 to the r norms positions. The detent 1? is provided with an inclined ratchet surface at its rear end arranged to engage the shank of the member 4 and cause the detent 17 to ratchet and permit the switch member i to more ast the same to its nest position iWhat I claim is l The combination of a switch including a nen'iber shift-able from a neutral position in. one direction to make terminal and in a second direction to make contact with a second terminal, means for normally preventing the movement of the snitch member from its neutral position into engagement with the second terminal, and me ans operable by the switch member tor moving and holding the former means out of operative position, after the switch me nher has been shifted into engagement with the first terminal and returned beyond its neural position into engagement "with the second terminal, substantially as and for the pinpose specific i able to ratchet by the switch member as the switch member completes its e gagement incl. irto position. to be tch member into engage- Kill? the first tor moved by the nt with the former means to shift the same out oi? the path of the switch mcrn during the return increment of tire switch Der contact with one arrests beyond its neutral position. into engagement with the second terminal, substantially as and for the purpose set forth.

. he combination of a' switch including a member shiftable from a neutral position in one direction to make -contact with one terminal, and in a second direction to make contact with a second terminal,- means normally arranged in the path of movement of the switch member to'prevent shifting of the same from its neutral position in the second direction, and means normally arranged in the path of the switch member when the same is moved in the first direction, the latter means having a ratcheting action from either side of s. 'itch member to the other, after said member moves in either direction and being movable into engagement with the former means to shift the same out of the path of the switch member when said member is moved in the second direction after engaging; the first terminal, substantially as and for the purpose de scribed.

4. The combination of a switch including a member shiftable froma neutral position or r.

in one direction to make contact with one terminal and in a second direction to make contact with asecond terminal, a detent normally afafiged in the path of the switch member for normally preventing movement of the said member from its neutral position into engagement with the second terminal, and means movable by the switch member into engagement with the detnt to move the same-out of operative position, after the switch member has been moved into and 'out of contact with the first terminal and toward and beyond its neutral position in the second direction to engage the second terminal, substantially as and for the pur-, pose set forth.

The combination of a switch including a movable member shiftable from a neutral position in one direction to make contact with one terminal and in a second direction to make contact with a second terminal,

mechanism normally arranged to prevent movement of the switch member from its neutral position in the second direction, said mechanism including an element projecting into the path of movement of the switch member said element having less movement than the throw of the ooacting portion of the said member in either direction and being arranged to ratchet from the advance to the opposite side thereof as the switch member completes its contact with the first terminal and into position to be pushed out of the path of said member during move 1 ment of said member beyond its neutral position in the second direction, substantially as and for the purpose described. a

6. The combination of a 'SWliZCl'l member includin a member shiftable from a neutral l i l I l i i i position in one direction to make contact with one terminal and in a second direction to make contact with a secdnd tei' ninah mechanism normally arranged to prevent movement of the switch member from its neutral position in the second direction, in cluding a detent projecting into the path or the movement of the switch member when the same is moved in the first direction from its neutral position, and having a shoulder for engaging said detent during movement of the arm in the second direction after the switch member en ages the first terminal, said arm" having less movement than the throw of the switch member in either direction in order to ratchet by the switch 7118I11- her substantially spec hed.

l. The combination of a switch including a member shiftabie from a neutral position as and for the purpose in one direction to make contact with one terminal and in a second direction to make,

contact with another terminal, a detent normally arranged to prevent nioven'ient of the switch in the second direction from its neutral position and shiftearm for the de tent arranged in the. path of the moren'ient of the switch member when the same is moved in the first direction from its neutral. position, and the shifter arm being arranged to ratchet past the switch member as said member completes its movement in the first direction and to engage and sliift the de tent out of the operative position during the movement of said member in the second directitjn, and to ratchet to its normal position after the switch member clears the detent subsmntially as and for the purpose set forth.

a member shiftable from a neutral position in one direction to make contact with one terminal andin a second direction to make contact with another terminal, a detent normally arranged to prevent movement of the switch'in the second direction from its neutral position, and a. shifter arm foigthe deof the switch member when the same is moved in theqfirst direction from its neutral position, andthe shifter arm being arran ed to ratchet )ast the switch men her as said 1 k member completes its movement in the first direction and to engage and shift the detent out of operative position during the movement of said member in the second direction, and to ratchet past said member after shifting the detent, the detent being provided with a ratchet surface arranged to engage the switch member during movement thereof out of engagement with the second terminal and permitting the switch member to ratchet past the detent to its neutral position, substant ally as and for the purpose described.

9. The combination of a switch including tent arranged in the path of the infivement forwardly and-rearwardly a pivoted detent projecting into the path of saidmember for normally preventing movement of the same from its neutral position in a rearward direction, and an arm pivoted at one side of the path of said member and normally projecting across said path, said member normally extending between the detent and the arm,'-the arm having means for engaging the detent and shifting the same out of operative position during the rearward movement of said arm, and the arm being of shorter length than the throw of said member in either direction from its neutral position so as to ratchet past said member, substantially as and for the purpose specified.

10. The combination of a switch including a member shiftable from a neutral position forwardly and rearwardly, a pivoted detent projecting in the path of the'said member for normallypreventing movement of the i same from its neutral position in a rearward 4 direction, as

the arm, the arm thepath of the said member and normally projecting across said path, said member normally extending between the detent and having means for engaging the detent and shifting the same out of operatiye position during the rearward movement oi said arm and the arm being of shorter length than the throw of said memher in either direction from neutral position so as to ratchet past said member, the detent and an arm pivoted at one side of v masses and the armbeing mounted on a common pivot on one side of the path of movement of the switch, substantially as and for the purpose set forth.

- 11. The combination of a switch including a member shiftable from a neutral position forwardly and rearwardly, a pivoted detent projecting into the path of said member for normally preventing movement of the same from itsneutral position in a rearward direction-and an sl m pivoted at one side of the path of the switch member and normally projecting across saidpath, the arm having means for engaging the detent and shifting the same out of operative position during the rearward movement of said arm and arm being oi shorter length than the throw of the said member in either direction from the neutral position so as to ratchet past the said member, and the detent having a ratchet surface at its rear end for engaging the said arm and permitting the same to ratchet past the detent when the said member is moving from its rear to its neutral position, substantially as and for the purpose described. In testimony whereof, I have hereunto signed my name in the presence of two attesting witnesses, at' Syracuse, county of Onondaga, in the State of New York, this 1st day of May, 1913.

- CARL H. BISSELL. Witnesses:

' HARRY WV. LINK,

C. G. SCHOENECK.

the i