US1104689A - Switch-stand and lock. - Google Patents

Description

J. D. MAUPIN, H. E. ALLEN & S. BALDWIN.

SWITCH STAND AND LOOK.

APPLICATION FILED OGT.7, 1913.

104 6 9 Patented July 21, 191i III] I f afltoznmas IH'F. AORRIS PETERS CO.. PHOTO-L!THU,. WASHINGTUN. 0 CV sra'rns i rArENro F oE.

. JOHN 1). MAUPIN; HARRY n-ALLEN, AND SPRINGFIELD BALDWIN, or T AGUE,

. As I 9 mm;

. SWITGI-I-STA Nb-iAND'1400K,

ful' Improvements in Switch-Stands and Locks; and We do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the artto which it appertains to make and use the same.

This invention relates to switch stands and" looks.

The object of the invention resides in the provision of a switch stand which embodies a look as a part thereof, said lock being inc-ased in such manner that it cannot be picked or tampered with by an unauthorized person.

A further object of the invention resides in the provision of a switch stand and lock so constructed that when the handle is moved into interlocking relation with the switch stand after closing the switch it will be automatically locked against further movement until the locking device is operated through the medium of a key.

A still further object of the invention resides in the provision of a switch stand which will positively prevent any tendency of the handle to cock and leave the switch in partially open position.

l/Vith the above and other objects in View the invention consists in the details of construction and in the arrangement and combination of parts to be hereinafter more fully described and particularly pointed out in the appended claim.

In describing the invention in detail reference will be had to the accompanying drawings wherein like characters of reference denote corresponding parts in the several views, and in which Figure 1 is a view in elevation of a switch stand constructed in accordance with the invention and with the parts in the position they would occupy when the switch is closed; Fig. 2, a plane view of what is shown in Fig. 1; Fig. 3, a partial section on the line 3-3 of Fig. 1, and Fig. 4:, a section on the line 44 of Fig. 1.

Referring to the drawings the switch stand is indicated generally at A and is shown as comprising a base 10 from which Specification of ietters Patent.

Patented m 21, 1914.

Application filed October 7, 1913. Serial Nb. 793,903.

rises standards 11 and 12, said standards being connected together at their upper ends by a cross member 13 and adjacent their lowerends by ,a :crossmember 14:. Supported uponvthe cross member 13 and the standards ll'and 12 is a segmental table 15 provided with recesses 16 and 17 in itsedge for a purpose that will presently appear. Journaled in the, table 15 and in a bearing 18 points in the usual and well known manner.

Fixed on the upper end of this shaft 19 just above the table 15 is a cap 21 provided with a socket 22 for the reception of a target stem 23 which carries a target 24. Formed integral with and extending radially from the cap 21 are spaced arms 25 and 26. The arm 26 is enlarged to form a casing 27 in which is mounted an automatic lock of any desired construction and including a spring latch 28, said lock being of the type adapted for operation to unlocked position through the medium of a key. Formed on the casing 27 is a flange 29 for a purpose that will presently appear. Pivoted between the arms 25 and 26 is a handle 30 provided on the side thereof adjacent the casing 27 with a notch 31.

Assuming the parts to be in the position shown in Fig. 1 if it is desired to open the switch it isonlynecessaryto retract the latch 28 through the medium of a key and thus withdraw said latch from the notch 31. The handle 30 is then swung to horizontal position out of the recess 17. The shaft 19 is then rotated through the medium of the handle 30 until the arm 25 engages a stop 32 formed on the table 15. The handle 30 is then allowed to fall under the influence of gravity and engage in the recess 15 so that the shaft 19 will be locked against rotation during the passage of a train through the switch. To again move the switch to closed position it is only necessary to dispose the handle 30 horizontal and rotate the shaft 19 in the opposite direction until the arm 26 engages a stop 33 mounted on the table 15. The outer end of the handle is then moved downwardly to engage said handle in the recess 17 During this movement of the handle 30 the inner end of the latter will engage the flange 29 and at the same time the latch 28 will automatically engage in the notch '31-and thus lock the handle against movement until said latch is retracted through the medium of a key.

It will be noted that when the switch stand is operated to open the switch the latch 28 also serves to secure the handle 30 against movement. 7

. What is claimed is the cap and extending beyond the edge of the table, the outer end of one of said arms being enlarged to form a casing, a hand lever pivoted between said arm and adapted to turn on its pivot from a horizontal unlocked position to a vertical locked position and to engage in the notches of the table when in locked position, an automatic lock mounted in said casing including a spring latch adapted to engage in a notch in the hand lever when the latter is in locked posiwith the shape of the inner end of the lever and adapted to be engaged by the latter for terminating the movement of the hand lever to locked position.

In testimony whereof we aifix our signatures, in the presence of two witnesses.

JOHN D. MAUPIN. HARRY E. ALLEN. SPRINGFIELD BALDWIN. Witnesses:

F. B. STOUGH, V. J. TULEY.

I Copies of this patent may be obtained for five cents each, by addressing the Commissioner or Patents.

WashingtomDJP tion, and a flange on said casing conforming e

Images