US813638A - Electrically-operated controlling mechanism. - Google Patents

Description

N0. 813,638. PATENTBD H1127, 1906.

I G. H. PRETTS. I v ELBOTBIUALLY OPERATED CONTROLLING MECHANISM.

APPLIOATION FILED MAY13, 1905.

2 SHEETS-$HEET 1.

ear 6 PATEN'TED FEB. 27, 19061 G. H. FRETTS. ELEGTRIGALLY OPERATED CONTROLLING MECHANISM.

APPLICATION FILED MAY 13, 1905.

2 SHEETS-81351131? new ratio/Eli chosen s. rnilirs. 01a SPRINGFlELD, IVIASSAUHUSE'IHTS.

sirsoraicAtLw-oesaerao oon'rnoruue echanism.

To. all whom it mag'eonoern;

Be it known that l, GEORGE H. FRETTS,

a citizen cf'the United States, residing at Springfield, in the county of Hampden and State of lVlassachusetts, have invented new and useful lmfirovements in Electrically-Operable Contro ing Mechanism, of which the I following is' a specification.

This invention relates to electricallyaoperable controlling mechanism capable of sue cesstul use in many connections' It is of prime advantage when employed in connection with a street-raillway switch, and in the form of embodiment of the invention which l-have selected liOI IllUSU'ntlOII in 'the'draw-- ing'sacconipanymgand forming apart of this I specif ication., I represent the mechanism as lassociated w th and adapted to operate a g switcln In th s particular adaptation of the invention it involves two solenoids adapted to be alternately energizedand to swing the switch-tongue in opposite (llI'QCblOI1Stll2li1 is to. say, one solenoid when energized Wlll 7 i451 hut I wish to stateat this point that I do not hmltmyself to the-disclosure thus made, for certa n var ations may he adoptedwi thin the 1 through its connections with the swi'tcln tongue move the latter in one direction, and

when the otherfsolenoid is energized it will 1 movethe switch'ton'gue in the opposite direct on.

'It'is one of the objects of the invention to hold the solenoids.in position in a solid subrstantial manner, .so that they cannot be H moved in anydirection that is, either upward or downward or sidewise.

, A further object of the invention is in the provision of means for holding the cores of the respect ve solenoids fixedly in certain positions, byvirtue oi which the switch-tongue cannot move Theinventionmcludes other objects and advantages, which, with the foregoing, will be set forth at length in the fell )wing description, while what is novel in the invention will be included in the claims succeeding said de scrlption. In the latter I will set forth in detail'the showing made by the drawings,

scope of my claims.

Referring to the drawings, Fig ure 1 is a a sectional front elevation of a mechanism involvlng my invention.

Fig. 2 is a transverse seetlonal' view of the same. Fig. 3 is a detail view, upon an enlarged scale, of a part of a solenoid core and certain cooperating -devices. F 1g. 4 1S8, top plan view of the same.

Specification of Letters Patent. Application filed May 13,1905. Serial No, 260.315.

Patented set. 2?, 19cc.

)lace, some suitable 'form of packing being 1 interposed between said top-and the body of the box to secure a water-tight joint therebetween. Within the casing; I have shown a rocker or lever 4, i'ulcriuned between its ends upon a bracket or hearing 5. The bracket or hearing has its working surface of V shape td receive the fulcrum ol' the lever, which is in the form of a knife-edge. Extending through a stulling-l ox (Sintho upper side 01 the easjug adjacent to the bed of the switch tiiingue is a rod 7, which is supported for endwise movement by the said switch-tongue bed and which is notched in its upper side to receivc the tongue, so that as the rod is longitudinally moved the switch-tongue will be vibrated. The inner end ofthc rod 7 is connected by a swivel 8 withthe rocker or lever 4 directly over the fulcrum thereof. Within the casing are two solenoids, each of which will be denoted in a general way by 9 and Y r the coils of which are connected to wiresor equivalent conductors extending into the casing through a laterally-extending tube 10. The bases of -the solenoids rest upon a board. 11, fitted closely n ithin the casing and in hair cular holes formed in a second hoard superimposed upon the board 12 and also fitted snugly within the casing. The two boards 11. and 12 constitute a support for prevent ing downws rd and lateral motion. of the two solenoids, the supporthaving, as will be understood, a seat for said solenoids.

' Clamped to the tows voi' he solenoids is a chem cally-treated board 13, having holes throu h which the brass tubes forming part of an extending slightly above the windings of the two solenoids project. The board 13 has perforations near its opposite ends to rcceive the shanks of bolts 15, thelower hooked ends of which enge ge under lugts, as 16, upon the opposite sides of the casin interiorly thereof, so that wheh the nuts 0 said bolts are set-up it will be evident that the bolts firmly press the clamping-hoard 13- against side of the rocker near thereof.

It will be evident from the description thus far/made that when the solenoid on the right in- Fig. 1 is energized its. core will be attracted so as to throw the switch-tongue 3 to the right by reason of the intermediate connections. When the other solenoid is energlized, the tongue will be oppositely moved.

he core of each solenoid 9 has a channel in its outer side extending downward therefrom a suitable distance from the upper edge thereof. Into each channel is set a latch, as 18, the hooks of the latchesbeing adapted to engage catches, as 19, which may be integral with the casing, but the workin ortions of which, br those parts thereof w 10h are engaged by the hooked ends of the latches, being covered with brass in order to assure the proper action of the latches. The latches 18 are-pivoted in place, and for this purpose rivets niay be used. The latches 18 are adapted to alternately engage the catches'or lugs 19 ineorder to hold the switch-tongue 3 firmly ina shifted position. Behind each latch 18 and in the channel in which it works I arrange a spring, as 20, the springs bein preferably of brass. The springs insure t e shouldered portions of the latches snapping promptly over their catches or keepers, and as they are made of brass they prevent the iron latches from touching the respective cores, so that when the current-is cut oil from eithersolen: bid the latch associated therewith can be returned instantly to its operative position. 1 It will be assumed that the latch 18 on the left engages its cooperating catch 19, the solenoid 9 on the right having been previously 3 to the right. It will be assumed that it is desired to move the switch-tongue in the opposite direction, to accomplish which result it "wilLbe necessary to ener ize the solenoid 9 on theleft. When said solenoid is energized,

-it will'attract its core, and as the latter is magnetized it in turn. attracts the latch 18,

actingas an armature so as to carry the latch from oil the catch, after which the solenoidcore on the left itself will be attracted by the solenoid in order to swing the switch-tongue from the right to the left. The initial operation, therefore, that takes place in any event .is therelease of a latch and thereafter the movement of the core carrying said latch.

Havin invention, what edges, the opposite branches of the rocker having V-sha ed bearings to support said last-mentioned knife-edges, and the rods be ing connected with the cores of the respective solenoids, and operative connections be tween the rocker and the switch-tongue.

2. The combination of a casing, a board fitted in the casing, solenoids supported upon the board, a second board fitter in the casing and restingn on the first board and having holes in whic the bottoms of the solenoids fit, a third board fitted against the topsof the solenoids, the latter having tubes extending upward therefrom and the third board having holes for the passage of the tubes, means for clamping the third board against the solenoids, a rocker fulcrumed between its ends in the casing, the opposite branches thereof being operatively connected. with the cores of the solenoids, a switch-tongue, and operative connections between the switch-tongue and the rocker.

3. A solenoid and its core, combined with a latch carried by said core and arranged to be attracted by the core on'the energization of said solenoid,

4. The combination of a solenoid and its core, a latch carried by the core and arranged to be attracted by the core on the energizetion of the solenoid, and a brass spring between the latch and the core.

5. The combination of a solenoid and its core, the latter having a channel, and a latch pivotally supported 111 the channeland arranged to be attracted by the core on the energization'of the solenoid.

6. The combination of a pair of solenoids and their-cores, latches, carried by the cores IOO and arranged to be attracted thereby on-the energization of the respective solenoids,- and catches arranged to be alternately engaged by the latche 7. The combinationof'a' pair of solenoids and their cores, latches carried by the cores and arranged to be attracted thereby, on, the

energization of the ,res ective solenoids, catches arranged to be a ternately engaged by the latches, a switch-tongue, and connections between the solenoid-cores and switch tongue for operating the latter.

in testimony whereof I have hereunto set my hand in presence of two subscribing wit- GEOKGE H. FRETTS'.

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