US1603012A - Switch mechanism - Google Patents

Switch mechanism Download PDF


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US1603012A US636297A US63629723A US1603012A US 1603012 A US1603012 A US 1603012A US 636297 A US636297 A US 636297A US 63629723 A US63629723 A US 63629723A US 1603012 A US1603012 A US 1603012A
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Donald S Andrews
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    • B61L23/00Control, warning, or like safety means along the route or between vehicles or vehicle trains
    • B61L23/002Control or safety means for heart-points and crossings of aerial railways, funicular rack-railway


Oct. 12 1926.
Filed May 5. 1923 D. S. ANDREWS swITcH MECHANISM 6 Sheets-Sheet 1 /Nvf/vme'- Oa/vfua j A/vopfws ar Arromvfx Oct. 12 1926. 1,603,012
D. s. ANDREWS SWITQH MECHANIYSM Filed May s. ..1923 s sheets-sheet 2 /A/ VEN roe n a/v/Mp .NDPHMS Arme/vtr Oct. 12,1926. "1,603,012
D. S. ANDREWS SWITCH MEGHANISM F1ed May 3, 1923 6 Sheets-Sheet 3 Arme/mf Oct. l2 1926-. I 1,603,012
` D. s. ANDREWS SWITCH MECHANISM Oct. 12', 1926.
D. S. ANDREWS SWITCH MECHANISM Filed May 3. 1923 G Sheets-Sheet 5 un @um Nw n@ .wm
Arme/V514 Patented Oct. 12, 1926. l *d i 1,603,012
Application led May 3, 1923. Serial No. 636,297.
My invention relates to switch Inecha- XIII-XIII and XIV- XIV respectively, nism, and particularly to mechanism for oper- Fig. 12. i 55 ating the switches or' a conveyor which in- Fig. 15 is a diagram of the electrical wircludes the use of a ground track and an overingof the switch system. head supporting track. The illustrated embodiment of my inven- The object or' said invention is to provide tion includes an overhead main-track 1, one a switch mechanism of the above-described or more switch-tracks 2 and an overhead 60 character which may be operated in a simple switch 3, Fig. 1, all suitablv supported, as manner and which will function efliciently. for instance in this case, by "the roof-trusses The said invention consists oi' means here- 1 of a building.
inafter fully described and particularly set ln this case the said tracks 1 and 2 conforth in the claims. sist of two I-beams5-5 suitably supported, 65
More specifically my said invention conand which form a lateral guideway for the sists oi overhead and ground switch members roller 6 mounted upon the top of the traveland means for .simultaneouslv actuating ing crane 7 of the system, all as shown in same .so as to permit the travelingl conveyor Figs. 17 2A, 4; and 6. f member to take the desired direction. The main-track is interrupted so as to pro- 70 The annexed drawings and the followvide the main-track terminals lrand 1, and ing' description set forth in detail certain the switch-track?. terminates adjacently to 20 vmeans embodying my invention, the disthe said terminal 1.
closed means, however, constituting but one Supported upon two cross-beams 8 8 eX- oi' various mechanical ways in which the tending between and supported by two ad- 75 principle ot the invention may be applied. jacent trusses 11, are two parallel I-beams In said annexed drawings: 9-9 which extend at right angles to and Fig. 1 represents a plan of a part of a are located above the overhead main and mono-rail conveyor system embodying my switch-tracks, as shown in Fig. 5. and upon invention. which are laid and secured the railslO-lO. 80 Fig. 2 represents an elevation of such As shown in Fig. 1, the adjacent main andsystein on the planes indicated by lines switch-track terminals lie Vjust outside and II-II, Fig. 1. below the one supporting truss 1.
Fig. 3 represents a plan of the overhead Supported by rails 10-10 is aA switchswitch, on an enlarged scale. carriage 11. provided with the wheels 12-12 B5 Fig. 4. represents a rear elevation of said running upon said rails and mounted on overhead switch on line IVIV Fig. 3, and brackets 13-13 from which the main-frame Fig. 5 represents a side elevation of same of the carriage is suspended, as shown in on line V-V Fig. 3. Figs. 4.- and 5. y
Fig. 6 represents a vertical transverse de- This carriage has suitably secured there- 90 tail section taken upon the plane indicated toa main-track section 14 and a switchby line VI-VI, Fig. 3. and viewed in the track section 15 having runways of the direction indicated by the arrows. same cross-sectional form as the main and F ig. 7 represents a plan of the ground switch-tracks, and arranged so that by switch, made on an enlarged scale. shifting this carriage upon its track the 95 Fig. 8 represents la rear elevation of the main-track section may be alined with the said ground switch. main-track termin-als, or the* switch-track Figs. 9, 10 and 11 represent detail sections section alined with the one main-track tertaken upon the planes indicated by lines minal and the switch-track terminal, as will 1XIX, X-X and XI-XI respectively, be understood and seen from an inspection 100 in Fig. 7. of Fig. 3. Y Y K Fig. 12 represents a section taken upon Mounted upon the carriage is an electric the plane indicated by line XII-XIF Fig. motor 16 secured to whose shaft and alined 7, on a still further enlarged scale. therewith is a worm 17, shown in dotted Figs. 13 and 14e represent sections taken lines in Fig. 4. This worm engages a worm- 105 upon` the planes indicated by `lines wheel 18 secured to a shaft 19 havingvits axis parallel with the main-track l, and journaled in bearings -2O mounted upon said carriage. To the two ends ot this shalt are secured the two crank-arms 2l" 2l which articulate with the one end of connecting rods 22-22 whose other ends are pivoted at 22 to anchor members EL-223, having` reduced ends 23 which are rigidly i'astened lo one ot the cross beams 8 by nuts 231.
It will thus be seen that the rotation oil the motor-shatt by the motor may be made to drive the shalt i9, oscillate the crankarms 2l and shift the carriage upon its supporting.;` structure.
The carriage furthermore has secured thereto two spring-actuated and normally closed limit-switches 24e and 25, suitably mounted, and adapted to be engaged to open by a member 25 which is conveniently and adjustably fixed to one ot the rails l0, as shown in Figs. 3 and Said member is so adjusted upon said rail that the limitswitches will be operated to break the motor circuit and stop the carriage at a point in its travel such as will bring the switch sections into proper alinement with the main-track terminals or with the one main-track terminal and the switch-track terminal, as the case may be and as will be readily understood. The details ot the electrical connections will be further hereinafter described in connection with the wiring` diagram, Fig. l5.
rlhe main ground-track illustrated, con-- sists of two T-rails 26-26, Fig. 7, forming an intermediate runway tor the single central flange 27 ot the supporting traction wheel Q8 of the crane 7, as shown in Fig, 2.
A suitable frog 29 is provided for this track and includes an oscillating' switchpoint 30 whereby the said wheel ma?.7 be switched from the main groundtrack to the ground switch-track Si, as will be readily understood itrom an inspection of Fig'. 7.
The tree end ot the switch-point lies in the vertical transverse plane in which the terminal l and the terminal of the over head switch-track 2 lie, so that when the proper -alinement ot the overhead switch sections with the overhead main or switchtracks, and a corresponding position o'i the switch-point 30, are imparted, the guiding roller 6 and the traction wheel 28 and hence the top and bottom of the crane, will be simultaneously diverted in the required and proper direction.
Mechanism 32 is provided for actuating the switch-point 30 including an electric motor 33 whose connections will be later described but which are ot a nature such that the operation ot the overhead andA ground switch mechanisms wil be synchronlzed.
The mechanism 32 is preferably located in a pit 84 sunk below the floor-level as shown in Fig. 8, and provided with a suitable cover (not shown).
rlhe motor 33 is mounted upon and suitably secured to a base 35 and has its shaft 3o connected with a coaxial threaded shailt 37 whose threads 38 engage the internal threads 39 Ot a cylindrical and tubular ,cross-head it) provided with guiding-wheels L il runningupon parallel tracks fixed to a housing 43 mounted and suitably secured to said base 35.
ilidably mounted upon the exterior ot such cross-head is a sleeve fili., Figs. i2 and i3, provided with journals t, Fig. i3, set in bearings i6 oit au oscillating yoke 47 pivoted upon a pin t8 mounted on the housingr 4:3. 'lhe cross-head is provided with end ilaogreaneuibers Lief) and between these meml and the sleeve are located two helical 5th-50, one on each side ot said 1,-he1d, as shown in Fie'. l2.
The upper end ot the yoke articulates with one end oi a connecting;l rod 5l, whose other rnd articulates with the switch-point BO. as shown in 8.
The sha-it 37 is provided with 'flanges 52 seatel in tlnust-bearings 53 iiXed to the housing' 43.
1ifi/'hen the motor is rotated, the cross-head i0 will be shifted and its motion transmit teiL to the sleeve le through the springs 50, hereby effecting the movement ot the yoke 4i?. the connecting` rod 5l and switchpoint 30.
To limit the movement ot these parts, two iixedly mounted spring actuated and norn'uilly closed limit-switches --l and are provided which may be actuated by rods and 57 respectively, the latter beingoperated by tic Contact oit the wheels Lll with levers 58 and 59 respectively` which articulate with the ends ot these rods.
These switches are conveniently placed upon opposite sides ot the mechanism, as shown in Fing. 7. rlhe two coiled siirine's permit the sleeve ill' to yield and thereby obviate the necessity of very tine adjustment oi' the levers 58 and 59 'for proper operation and prevention of breakage of pa 1ts.
rlbc arrangement and wiring` connections ot the motors, limitswitches, Vpush-lmttons and other electrical connections, is illustrated diagrammatically in Fig. l5, and is as follows: i
its betere stated the motors i6 and 33 are mounted respectively upon the overhead carriage il and the stationary base of the ground switch mechanism.
it main supply circuit L1, L2 is provided, one side oit which is connected by the conductor lla with one ot the fixed switch-members a ot a mairnetically-operated normally open switch in, the correr-monding` movable mem? ber s1 of which is connected, by means of the conductor L4, with one terminal of the armature of the motor 16. The other terminal of such armature is connected by means of a conductor L5 with the movable member s2 ol' the other switch-member of said switch S, the lixed member 83 of which is connected by means or' a conductor L, with an accelerating switch A, which is connected by means oil a conductor L7 with the other side of the main circuit, as shown.
A conductor L8 connects conductor L3 with one oit the fixed switch-members, t, of a second magnetically-operated normally open switch T, and the corresponding movable member 251 is connected, by means of a conductor L9 with the conductor L5, and thus connected with the motor 16 in the same manner as is the corresponding member of switch S.
A conductor L10 connects conductor LG with the other fixed member, t3, ot said switch T, the corresponding movable .member t2 of which is connected with the conductor L1, as shown.
A starting resistance R :is connected in parallel with the accelerating switch A.
The switches S, T and` A are conveniently mounted upon the carriage l1, in a'box 60, Fig. 3, provided for that purpose, and surh described conductorsas may be necessary, are made flexible so as to permit the movement ol said carriage without disrupting the circuit, all as will be readily understood by those skilled in the art.
The field of the motor 16 is connected with the main circuit by means of the conductor L11 and the current flows through same always in the same direction.
A push-button control-station 61 is vided and conveniently placed upon a pillar or other support (not shown) placed in proximity to the path of the crane so that it may be reached by the operator from his cage on the crane. f
This station is provided with three springactuated push-buttons, switches `62, 63 and 64; switches 62 and 63 being normally held in their open positions, and switch 64 in its closed position, bythese springs. A conductor K leads from one terminal of switch 62 to the conductor L3, making connection with the one side L1 of the main circuit; and a conductor K1 connects the other side L2 of said circuit with one terminal of the switch 64. The other two terminals of switches 62 and 64 are connected with each other by conductor le. The two coils of the magnetically-operated switch S are connected in this last-described circuit, in parallel and the linut-switch 24 in series.
One terminal of a normally open switch U is connected with the one terminal of switch 62 by means ol conductor K1, and the other terminal of switch U with the other proterminal of switch 62 as shown, by conductor K, and the movable member u of said switch U is actuated by the movable member s1 of switch S.
A conductor K3 leads from one terminal of switch 63 to the conductor L3 thus also making connection with the one side L1 of the main circuit, Athe other terminal oi' said switch 63 being connected to the other side oi said main circuit, by means of conductor K1, switch 64 and conductor 7c as shown. The two coils oll the switch T are connected in this last-described circuit in parallel and the limit-switch 25 in series.
The. one terminal ott a normally open switch U1 is connected with conductor K3 and the other terminal with conductor K2 by means of a conductor K1. The movable member u1 oit switch U1 is actuated by the movable .member t2 of switch T.
A duplicate or' the above-described wiring system and parts is provided in parallel therewith for controlling the movement of the ground switch. This duplicate system includes the motor 33, switches S1, T1, U3, U1, starting resistance R1, accelerating switch A1, and the limit-switches 54 and 55, as shown in the lower half of Fig. 15.
The operation ot the above-described mechanism is as follows:
Let it be assumed that the track-switches are in the positions shown in F igs. 3 and 7, in which positions the limit-switches 25 and 55 will be open, since they will have been actuated by the switch-mechanism to so open; and the limit-switches and 54 will be closed, since they are normally closed and are not engaged by the mechanism to assume the open position.
Switches S, S1, T and T1 are, under these conditions, open as well as are the switches U, U1, U3, U4, 62, 63 and the accelerating switch A. Switch 64 will be closed.
These described positions are those shown in Fig. 15.
When it is desired to of said track-switches, switch 62 is pressed. L1, L3, K, 7c, K1, L2 and the Switches S and S1 will close. The circuit through the armatures will thus be closed and the armatures rotated so as to shift the movable track-switch members. Then switches S and S1 are closed switches U and U3 will also be closed, the push-button of switch 62 may be released and the motor continue to operate, thus obviating the necessity of keeping the switch 62 closed until the shifting movement of the track switches is completed.
When the track-switches have reached their proper and new positions, the limitswitches 24 and 54, will be actuated to open, and switches S, S1, U and U3 will automatically open, the motor-circuit broken and change the positions the push-button of This closes circuit lll() Cri the motors stopped. Limit-switches and will in the meantime have been automatically closed.
lllhen the push-button switch G3 is closed switches "ll, '511, U1; 'U1' and fr are operated and tlie cui-rent through the armatures and hence the direction oiI rotation ot the motors is reversed so that a movement ot the track switches in the opposite dir ction may be obtained.
'lille switch (il rency to break motors.
lifhat l cla'rn is:
l. ln switch mechanism 'tor conveying' apparatus, the combination ot an overhead tracli; a ground track; switches tor said overhead and ground tracks mounted to movel in a horizontal plane; and means 'for simultaneously actuating` said switches.
2. ln switch mechanism tor conveying apparatus, the combination ot an overhead track; a ground track; switches tor said overhead and ground tracks; and electrically-operated means for simultaneously actuating said switches.
3. ln switch mechanism tor conifeyinp; apparatus, the conibination ot a switch-earriage; a track-switch mounted thereon; an electrically operable motor mounted on the switch-carriage; means connected therewith tor actuating said switch-carriage; electrical connections tor actuating said motor in either ot' the two opposite directions and including a circuit containing a magneticallyoperated motor switch member; a starting switch tor said circuit; and an auxiliary circuit containing a switch-member operated by said motor switch-member to close said may be used in an emerthc circuit and stop the auxiliary circuit, whereby said starting,l switch may be disconnected and the operation ot said motor-switch continued.
Lt. ln switch mechanism tor conveying)` apparatus, the combination ot a switch-carriage; a track-switch mounted thereon; an electrically7 operable motor mounted on the switch-carriage; means connected therewith for actuating said switch-carriage; electrical connections tor actuating said motor in either ot its two opposite directions and including a circuit containing a magneticallyoperated motor-switch member; a starting` switch for said circuit; and an auxiliary switch-member operated by sai-d motorswitch member to close said auxiliary circuit; said starting switch being normally open and adapted to close upon being released.
5. ln switch mechanism, the combination of a main-track; a switch-track; a carriage having; a main-track section and a switchtrack section mounted thereon and adapted to be moved so as to bring either ot said two sections into alinement with the maintracl; a motor mounted upon said carriage; a lined anchor member; and connections between said motor and anchor member lor actuating` said carriage.
6. ln switch mechanism, the combination ot' a movable switch carriage; an anchor member; a motor mounted upon said carriage; a sha'tt driven by said motor; a crank fixed to said shaft; and a connecting` rod articulating at one end with said crank and at the other end with said anchor-member.
Signed by me this Qlth day ot April, 1923.
US636297A 1923-05-03 1923-05-03 Switch mechanism Expired - Lifetime US1603012A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2688934A (en) * 1945-11-08 1954-09-14 Mechanical Handling Sys Inc Electric control means for automatic conveyer systems
US2880904A (en) * 1953-04-14 1959-04-07 Frank R Linthicum Container supply and dispensing cabinet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2688934A (en) * 1945-11-08 1954-09-14 Mechanical Handling Sys Inc Electric control means for automatic conveyer systems
US2880904A (en) * 1953-04-14 1959-04-07 Frank R Linthicum Container supply and dispensing cabinet

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