US1269069A - Switch-stand. - Google Patents

Description

C. FORTH.

SWITCH STAND.

APPLICATION FILED JULY 23. I917.

Patented June 11, 1918.

2 SHEETS-SHEET C. FORTH.

SWITCH STAND.

APPLICATION FILED JULY 23.1911.

1,269,069. Patented June 11, 1 91&

2 SHEETS-SHEET'Z.

T'rns PATEN CHARLES FORTH, OF OTTAWA, ONTARIO, CANADA, ASSIGNOR TO FLEXIBLE METAL HOSE COMPANY LIMITED, OF OTTAWA, ONTARIO, CANADA.

SWITCH-STAND.

' Specification of Letters Patent.

Patented June 11, 1918.

To all whom it may concern:

Be it known that I, CHARLES FORTH, a citizen of the United States of America, and resident of Ottawa, in the Province of Ontario, Dominion of Canada, have invented certain new and useful Improvements in Switch-Stands, of which the following is the specification.

This invention relates to improvements in switch stands, and the objects of this invention are to facilitate locking the switch stand, so that it cannot be tampered with by unauthorized persons, and also, to assure the switch being set in the proper direction when locked. I

Further objects are td simplify the arrangement of the lever actuating the switch and render the same fool proof, to so inclose the lock mechanism carried. by the lever, that it will be protected from rain and snow, so that there is no possibility of any deterioration of the working parts due 'to rust, dust, etc., and generally to adapt the several parts to better perform the functions required of them. j

With these and other objects in view the invention consists essentially of the improved construction particularly described and set forth in the following specification and accompanying drawings forming part of the same.

In the drawings Figure 1 is a front elevation of a switch stand embodying the, present invention.

Fig.2 is a side elevation partially sectional of the hand lever controlling the operation of the switch.

Fig. 3 is a front elevation of the handlever with the lock casing in section.

Fig. 4: is a perspective viewflof the latch 7 member.

Fig. 7 is a fragmentary perspective view of the hand lever showing the position of thelock; fl' I. j t Like characters of reference referjto like parts in the several figures. l

Referring tothe drawings AL, represents a switch stand of any usual "construction and B the improved'hand lever, by means of which the operation of the switch is controlled.

On the upper portion of the stand A, a disk 10 is mounted provided with a peripheral slot and carrying an integrally formed housing 11, provided with orifices 12 through the side walls thereof this housing being open on the front and lower walls and having an inner curvilinear top and back wall 13.

The lever B is provided adjacent its upper end with an orifice 14: designed to be arranged in alinement with the orifices 12 in the housing 11, so that the hinge pin 15 pivotally secures the lever B in position. The lever B is provided on the upper end with a longitudinally extending pocket 16 which communicates through the slot 18, with the outer beveled wall 17 of the lever, which is further provided intermediate of its length with a pocket 19 on the front wall thereof, below which projections 20 are formed on thelateral walls of the lever.

A suitable hand grip 21 is provided on the lower end of the lever thereby facilitating rotating the same about the hinge pin 15.

Co-aoting with the lever B is a latch member 22 consisting of a rectangular body portion provided on the upper end with an olfset arm 23, terminating in the cylindrical end 24:, which slidably engages with the pocket 16, and co-acts 'with the spring 25 located in the said pocket.

The arm 23 is reduced intermediate of its length as shown at 26, so that it will slidably engage with the walls of the slot 18, and in this manner it will be clear that the latch member 22, cannot become displaced laterally at the upper end.

The upper end of the latch member ter- 2 minates in a curvilinear projection 27 extending above the upper face of the arm 23, and this projection is adapted to normally engage the front face of the housing 11, and prevent the lever B from being rotated around the hinge pin 15, when the switch is locked.

The latch member 22 is designed to be moved in a longitudinal direction and. is provided with a projection 28 located below the arm 23 and on the same side of the body portion as the said arm, and this projection slidably engages with the pocket 19 in the front of the lever B.

Directly opposite the projection 28 a hand grip 29 is located, and a pair of ofi'set flanged members 30 are formed integral with the lateral walls of the latch member just above theprojection 28.

The lower end of the latch member 22 is cut away or reduced on the rear face at 31, while one of the lateral walls is beveled as shown at 32 for an object to be made clear hereafter.

The lock C co-acting with the latch member 22 consists of a casing 33 provided with lugs 34, designed to be arranged in alinement with the projections 20 and bolts or rivets pass through the said lugs or projec tions to secure the casing in position.

The lower end of the casing carries a lug 35 which rests on the front face of the lever B and is secured thereto by a bolt or the like. The body portion of the casing 33 is substantially rectangular and is provided on the upper wall with a rectangular conduit 36 located over the pocket 19, with which conduit the lower end of the latch member 22 makes sliding engagement, and the front of the casing is provided with a key hole 8 normally closed by the hinged cover 7.

The upper end of the conduit is inclosed by the flanged members .30 when the lever B is in use.

In the casing 33 the lock mechanism is housed and consists ofjthe base 37 provided with a plurality of projections 38 arranged at the corners thereof, and between those projections, the locking member 39 is slidably mounted. This locking member is provided in its lateral edges with recesses 40 and 41, the last of which is adapted to engage with the s ring 42, located between the inner side wall of the casing and the said locking member.

l'he lower edge of the locking member 39 is recessed as shown at 43 and forms the wards of the lock while adjacent to this recess a spindle 44 is secured to the base 37 with which spindle a key is adapted to en age.

The upper edge of thelocking member 39 is provided with a projection 45, which normally engages with the lower end of the latch member 22, when the switch is locked, but when the switch, is opened the locking member 39 is moved laterally to permit of the. latch member 22 being manually moved downwardly so permitting the lever B being rotated about the hinge pin 15 and giving clearance between the projection 27 and the inner curvilinear wall 13of the housing 11.

Then a switch equipped in this manner is in use the operator by means of akey moves the locking member 39 laterally to disengage the projection 45 from the end of the latch member 22, and the operator thenw grips the member 29 and. pullsthe latch member downwardly.

The lever B is now free to be rotated about the hinge pin 15 and when the latch member 22 is in its extreme downward position the projection27 just clearsthecurvilinear wall 13 of thehousing 11, so that when the lever B is rotated into the horizontal position to clear the peripheral slot 9 in the disk 10, the switch may be moved by the said lever.

In locking the switch it is only necessary to rotate the lever B into a vertical position as shown in Fig. 1, in which the latch member 22, when the projection .27 is clear of the housing 11, will be automatically forced upwardly under the action of the spring 25, and the projection will then engage the front of the housing.

The lever B will now engage the peripheral slot 9 in the disk 10, so that the switch is locked and cannot be thrown. When the switch is open the key cannot be withdrawn from the lock C, as the recess 43 will prevent the key from turning to register with the key hole 8 due to the fact that the locking member 39 has been moved to. its eX- leasing the locking member 39, which moveslaterally under the action of the spring 42, and so engages the projection 45 with the lower end oftheflatch member.

From this description itwill be seen that I have. invented a switch lever which can be advantageously used on railway systems and from which the key cannot be withdrawn when the switch. is in use, the lever being so arranged that it is automatically locked when closed, the several parts of the mechanism; being inclosed and not liable to be tampered with.

As many changes could be made in the above construction and many apparently widely different embodiments of my invention, within the scope of the claims, constructed without departing from the spirit or scope thereof, itis intended. that all matter contained in the accompanying specification and drawings I shall be -interpreted". as illustrative and not in a limiting sense.

What .I claim as my invention is:

1. In a switch stand and in. combination, a disk having a peripheral slot, a: housing carried, by the'diskprovided with an inner curvilinear wall, a lever 'pivotallymounted on the housing having a pocket-in the upper endand.,a;.slot communicating with the pocket, a longitudinal, displaces-Pole latch.-

member mounted on the lever, provided on the upper end with an arm designed to engage the pocket and slot, and resilient means in the pocket co-acting with the arm.

2. In a switch stand and in combination, a disk havin a peripheral slot, a housing on the disk having an inner curvilinear wall, a lever pivotally mounted on the housing, a latch member, an arm on the upper end of the latch member, a projection at the end of the latch member, a pocket in the lever co-acting with the arm, resilient means in the pocket engaging with the arm and a hand grip formed integral with the latch member.

3. In a switchstand and in combination, a disk having a peripheral slot, a housing on the disk provided with an inner curvilinear wall, a lever pivotally mounted on the housing, the latch member slidably mounted on the said lever havin its lower end cut away and beveled, a 100 'ng member provided with a projection on its upper edge designed to co-act with the lower end of the latch member, and resilient means for normally pressing the latch member upwardly.

4. In a switch stand and in combination, a disk, a lever pivotally mounted thereon, a latch member slidably mounted on the lever, a pair of flanged members formed integral with the lateral walls of the latch member, a lock casing having a conduit in the upper edge slidably engaging with the lower end of the latch member, and a lateral displaceable locking member provided with a projection on its upper edge, designed to co-act with the lower end of the latch member.

5. In a switch stand and in combination,-

my hand.

CHARLES FORTH.

Gopies at this patent may be obtained for five cents each, by addressing the commissioner of Patents. Washington, D. G."

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