US1739869A - Switch stand - Google Patents

Description

Dec. 17, 1929. L. R. SHAFFER 1,739,869

SWITCH STAND Filed Nov. 11, 1927 2 Sheets-Sheet 1 INVENTQR.

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Ida/1 TTORNEIYJ Patented Dec. 17, 1929 one LARKIN IR. SHAFFER, F GARLAND, "UTAH SWITCH STAND Application filed November 11, 1827. Serial No. 232,532.

7 having a point throwing mechanism of comparatively few parts.

Another object is the provision of a safety feature so constructed that should the switch be run through the point actuating connections will be locked so that the switch cannot be then thrown until it is repaired.

WVith these and other objects in view the invention consists in certain novel detailsof construction, combinations and arrangements of parts all as will hereinafter be more fully described and the novel features particularly pointed out in the appended claims. In the accompanying drawings, Figure 1 is an elevational view of a switch stand embodying the present improvements. Fig. 2 is a vertical sectional view of the stand.

Fig. 3 is a horizontal sectional view on the line 33 of Fig. 2. Fig. 4 is a plan view of the stand base. Fig. 5 is a plan view of the stand table. Fig. 6 is a detail view of the casing for the operating lever; and

Fig. 7 is an end view of the stand housing. In accordance with the present invention, the base'lO, illustrated in the present instance as being adapted to be attached to a single tie, has mounted thereon a stem or post 11. Said post may be cast integral with the stand 4 base or formed separately therefrom, but attached rigidly thereto by suitable fastening elements. Adapted to revolve around post 11 is the stand housing 12, and in order to reduce the number of parts involved the lower end ofsaid housing has integrally formed therewith a journal member 13 which is adapted to be connected to one of the switch points by a connecting rod 14. The connecting rod 14 is retained on the journal lever 13 by a plate 15 slipped over housing 12 and resting in the casing as at 23.

on a shoulder 16 on said journal member, at which point it may be secured by means of a key 17 extending through and projecting beyond the side faces of housing 12. Housing 12 may be mounted for rotation in Various ways, being shown in the present instance as resting directly on a ridge formed at the base of post 11.

At its upper end housing 12 is somewhat reduced in cross section, the surfaces of said housing at this point being formed with recesses 18 in which there are pins 19 that extend through apertures 20 in a casing 21 surrounding the reduced portion of the housing. Casing 21 encloses the upper end of the operating lever 22, said lever being pivoted When the switch points are normally locked in either of their positions lever 22 assumes a depending position, as shown in Figs. 1 and 2, with its upper end projecting into one of a series of recesses 24 in the stand table 25, said stand table being fixedly mounted on the upper end of post 11 by a rivet 26. .With a construction such as outlined, it will be observed that it is only necessary to remove the one rivet 26 in order to gain access to the several working parts of the stand when it is desired to make repairs. An eye 27 is provided on the casing 21 for the reception of a lock for looking lever 22 in its normal depending position.

It will be observed that at its very uppermost extremity housing 12 is formed with a plurality of longitudinally extending recesses 28 into which the projecting end portion 28 of lever 22 is adapted to project when the .lever'is moved upwardly, as shown in dotted lines in Fig. 2 for the purpose of disengaging it from table 25 when the switch 6 is to be thrown by rotating housing 12, it being understood that the pins 19 connect the lever casing with said housing, so that, by moving the lever 22 laterally after it has been elevated, the housing 12 may be rotated to actuate the switch point. However, the nature of pins 19 is such that if the switch should be run through and the pressure on the point is such as to tend to rotate housing 12 while it v is being held stationary by the upper end of lever 22 projecting into one of the slots in table 25, said pins would be bent outwardly and upwardly to such an extent as to, at least, partially fill the recess 28 which the end 28 of lever 22 normally enters. As a result, the movement of lever 22 on its pivot 23 will be limited to such an extent that its upper end portion will be unable to clear table 25. In other words, it will be impossible to again operate the switch through the medium of opcrating lever until the bent pins 19 have been removed and new pins inserted in lieu thereof. By having pins project through the casing, 21, it will, of course, be necessary to properly line up the holes 20 in the casing with the re cesses 18 in housing 12 in order to make the proper repairs. This will prevent careless work being done in repairing the stand.

Immediately above table 25 the post 11 is reduced somewhat in diameter to form a shoulder 29 for supporting a target. If a low target is desired a bracket 31 may be journaled on the upper end of post 11 and its lower end attached by fastening elements 32 to the side face of housing 12. The intermediate portion of said bracket 31 may be provided with suitable openings 33 for attach ment of the target 34. On the other hand, it a high stand is desired, a target rod 30 having a socket in its lower end may be inserted on the upper end portion of post 11 by placing it over the journal portion of bracket 31. Where such target rod is used, the target 34 may be dispensed with.

What I claim is:

1. In a switch stand, the combination of a base, a post mounted thereon, a rotatable sleeve surrounding said post and adapted to be connected to a switch point, a casing connected to said sleeve, a table, an operating lever pivoted in said casing and normally engaging said table to prevent rotation of the casing and sleeve, there being a recess in said sleeve into which a portion of said lever enters when moved to rotate said sleeve, and means for preventing said lever entering said recess when the sleeve is rotated by pressure on the switch point.

2. In a switch stand, the combination of a base, a post mounted thereon, a rotatable sleeve surrounding said post and adapted to be connected to a switch point, a casing connected to said sleeve, a table, an operating lever pivoted in said casing and normally engaging said table to prevent rotation of the casing and sleeve, there being a recess in said sleeve into which a portion of said lever on ters when moved to rotate said sleeve, and means adapted to partially fill said recess and prevent said lever entering the same when the sleeve is rotated by pressure on the switch point.

3. In a switch stand, the combination of a base, a post mounted thereon, a rotatable sleeve surrounding said post and adapted to be connected to a switch point, a casing connected to said sleeve, a table, an operating lever pivoted in said casing and normally engaging said table to prevent rotation of the casing and sleeve, there being a recess in said sleeve into which a portion of said lever enters when moved to rotate said sleeve, and means constituting the connection between the sleeve and casing adapted to be moved into said recess and prevent the lever properly entering the same when the sleeve is 1'0- tated by pressure on the switch point.

4. In a switch stand, the combination of a base, a post mounted thereon, a rotatable sleeve surrounding said post and adapted to be connected to a switch point, a casing connected to said sleeve, a table, an operating lever pivoted in said casing and normally engaging said table to prevent rotation of the casing and sleeve, there being a recess in said sleeve into which a portion of said lever enters when moved to rotate said sleeve, and means consisting of a bendable pin forming the connection between the casing and sleeve adapted to enter said recess in the sleeve when the sleeve is rotated by pressure on the switch point.

5. In a switch stand, the combination of a table, a casing, a rotatable member adapted to be connected to a switch point, an operating lever pivoted in the casing and normally engaged with said table to prevent rotation of the rotatable member, said rotatable member having a recess therein into which said lever enters when disengaged from the table to actuate said member, and means adapted to partially fill said recess and prevent the proper entry of said lever when the rotatable member is rotated by pressure on the switch point.

6. In a switch stand, the combination of a table, a casing, a rotatable member adapted to be connected to a switch point, an operating lever pivoted in the casing and normally engaged with said table to prevent rotation of the rotatable member, said rotatable member having a recess therein into which said lever enters when disengaged from the table to actuate said member, and pins connecting said casing and rotatable member adapted to partially fill said recess and prevent the proper entry of said lever when the rotatable member is rotated by pressure on the switch point.

7. In a switch stand, the combination of a base, a post rigid therewith, a sleeve rotatable about said post and adapted to be connected to a switch point, a lever for rotating said post, and a table mounted on said post above said lever adapted to be normally engaged by said lever to prevent rotation of said sleeve.

8. Ina switch stand, the combination of a base, a post rigid therewith, a sleeve rotatable about said post and adapted to be connected to a switch point, a lever for rotating said post, a fixed table normally engaged by said lever to prevent rotation of said sleeve, and

a target supporting member journaled on said post and connected to said sleeve.

9. In a switch stand, the combination of a base, a post rigid therewith, a sleeve rotatable about said post and adapted to be connected to a switch point, a lever for rotating said post, a table mounted on said post normally engaged by said lever to prevent rotation of said sleeve, and a target supporting member journaled on said post and connected to said sleeve.

LARKIN R. SHAFFER.

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