US1691866A - Valve-operating means - Google Patents

Description

J. BENTLEY VALVE OPERATING MEANS Nov. 13, 1928. 1,691,866

Fi led June 27, 1927 32. 27 Juseph E12 Patented Nov. 13, 1928.

UNITED STATES matte PATENT orrice. j

JOSEPH BENTLEY, or SIOUX LOCKOUT, new oivr'nnro, onrnnro, CANADA; essrenon OF ONE-HALF T EDWIN PIERson, or sroox LOCKOUT, new ONTARIO, CANADA.

VALVE-OPERATING MEANS.

Application filed June 27, 1927. Serial No 201,798.

. The present invention relates to valve operatmg mechanisms, and more specifically to improved apparatus of this character for use in connection with end train line steam valves of passenger train car heating systems.

With the existing types of end train line steam valves, considerable trouble has been encountered by reason of the valves moving to'a closed posit-ion due to vibration while .the train is running,'and resulting in improper functioning of the heating system forthe train. 7 V

7 It is therefor a primary object of this invention to provide an improved valve operating means for end train pipe valves embodying features whereby the valves will be positively locked in either an open or closed position against movement due to vibration while the train is in motion. I

r further object'of the invention resides in the provision of improved valve operating means of this character embodying keeper means and an operating means so associated with the keeper means as to allow for the valve to be operated either from the ground or from the vestibule platform of the car.

A further and important object of the invention is toprovide a novel self locking operating means for end train pipe valves which may be readily associated with such types of valves as now in use after but slight alterations to the valves.

Other objects and advantages of the invention will be apparent during the course of the following detailed description,-taken in connection with the accompanying drawing forming a part of this specification and in which drawing:

Figure 1 is a view illustrating the valve operating mechanism as applied to an end train pipe valve of a car heating system.

Figure 2 is an enlarged detail view of the apparatus and showing the manner in which the keeper means engages the valve for re-.

taining th-e valve in either an open or closed position.

Figure 3 is an enlarged fragmentary detail section on line 33 of Figure 1 and showing the position of the elements of the operating means when the valve is in its open position.

' Figure 4: is a detail perspective view of the locking yoke for the keeper means.

Figure 5 is a'view part in section and part in elevation of the valve and showing the manner in which the keeper means acts for retaining the valve in either an open or closed position, the view'being one showing the valveheld in its open position. i 7

Referring to the drawing in detailpan'd wherein similar reference characters designate corresponding parts throughout the The valve B is ofthe throw type and em- 1 bodies a valve body 7 having .ports 8 and'9 which are closed bymeans of a disc valve head 10 mounted for swinging movement for about a one-quarter-turn upon a valve stem or rocker shaft 11 mountedin the valve body 7 and projecting through the valvestuiiing box 12. The shaft 11 extends transversely of the car A and. projects from the face of the valve toward the side of the car as clearly illustrated in Figure 1. This valve stem or rocker shaft 11 where it extends through the stuffing box 12'is preferably of cylindrical formation as at 14 in Figure 2 and extending from the cylindrical portion lt is a valve stem extension 15 which is preferablysquare in cross section and-ofsmaller size thanthe portion l l-thus forming an outwardly facing shoulder or abutment 16. The outer endof the square stem extension 15 is threaded as at 17 for threaded reception of a suitable compression nut 18 having a suitable washer 19 arranged at the inner side thereof and movable along the square stem extension toward and away from the cylindrical portion 14: upon rotation of the nut 18. -Encircling the square stein portion 15 is a spiral expansion spring 20, the outer end of which engages the washer 19 and the inner end of which is intended to act upon the inner end of the keeper means G for normally urging its the same toward the face of the valve B. Suitably formed on the face of the valve body 7 concentric with the axis of the shaft 11, are companion sets of lugs or projections 22 and 24, the diametrically arranged set of lugs '22 serving for maintaining the valve in an open position, and the diametric set of lugs 24 serving to retain the valve in its closed position. The only alteration which will be required to the valve B is that of providing the companion sets of lugs 22 and 24 on the face of the valve, andforming the rocker shaft 11 of slightly greater length for providing the square valve stem extension for mounting of the keeper means C.

Referring now to the keeper means C, the same embodiesan open frame like'yoke 25 having side arms 26 which are connect-ed at their inner ends by the cross arm 27 and at their outer ends by the cross arm 28 of less length than the arm 27 so that the side arms 26 extend in converging relation from the inner arm 27 to the outer arm 28. Provided at the medial portion of each of the arms 27 and 28, and preferably arranged in axial alignment, are square shaped openings 30 and 31 respectively. The square opening 30 of the inner cross arm 27 is intended to slidably receive the square stem extension 15 with the cross arm movable to a position against the outwardly facing shoulder 16 of the stem extension, which shoulder limits movement 'of the yoke 25 toward the stuffing box 12. -Provided adj acentthe terminal portions of the inner cross arm 27 and extending inward ly therefrom in parallel relation to one anot-her'from the inner face of the arm, is a pair of keeper pins 32 which are adapted to co act with the sets of lugs 22 and 24 for retaining'the valve head 10 either in an open or closed position. These pins 32 are of such length as to extend to the sides of the lugs 22 and 24 when the inner cross arm 27 engages the shoulder 16 of the stem extension 15. The inner end of the spring acts upon the inner face of the cross arm 27 for normally urging the arm against the shoulder 16. By observing Figure 2it will be seen that when the yoke is drawn to a position as shown in dotted lines, hat'the inner end of the pins 32 will move free of the lugs or 24 and allow for rotation of the rocker shaft 11 upon rotary movement of the yoke by reason of the square stem extension 15 and square opening in the arm 27, and that upon release of the yoke that the spring 20 will move the yoke inwardly along the stem extension 15 so that the pins 32 again move to a position engaging the lugs 22 or 24. In Figure 5 it will be seen that the pins 32 are engaged behind the lugs 22 in a manner preventing movement of the valve disc 10 to a closed position due to vibration. That portion of the operating means thus far specifically defined isall that will ordinarily be required for the operation of end. train pipe valves as employed upon dining cars, baggage cars, express cars and the like.

Referring now to the actuating means E, which will be associated with the means 0 for use with those types of cars requiring a platform attachment for operation of the valve B, the same has been shown as embodying the ground operating means D and a platform operating means F.

The means D for operation of the valve B from the ground, consists of an extension rod 35 havinga handle 36 provided at its outer end and formed at its inner end with a squared portion. 37 for fitting in the square opening provided in the outer cross arm 28 of the yoke A pin 38 extends through the square portion 37 at the inner side of the arm 28, for preventing withdrawal of the extension rod from the yoke and allowing for outward movement of the-yoke when a pull is exerted on the red as by means of the handle 36. 'VVhen desiring to close the valve B as by the means D, a pull is exerted on the extension rod 35 for moving the yoke 25 out wardly against tension of the spring 20 until the pins 32 are clear of the lugs 22 and then by turning the rod 35 to its limit of movement in a left hand direction the pins 32 will move to a position whereby upon releasing the pull upon the red the spring 20 will move the rod and yoke inwardly so that the pins engage the lugs 24 in'a manner as shown by the dotted lines in Figure 5. Rotary movement will be imparted to the yoke 25 by reason of the square rod portion 37 engaging in the square opening 31 of the yoke.

' Referring now to the platform operating means F for operation of the valve B from the vestibule platform of the car, the same embodies platform operating handle 40 for opening and closing the valve, the handle be ing adapted to extend vertically through an opening 41 in the platform 5 and carry at its upper end'a suitable hand grip Pivotally connected at one end as by a suitable pivot pin 43 to the lower end of the handle 40, is an arcuate shaped crankarm 44 the lower end of which has connection with the exten-.

sion rod 35 in a manner whereby upon movement'of the arm 44 rotary movement W]ll be imparted to the rod. This arm 44 mayhave connection with the roil 3a in any preferred manner and in the example shown the rod is square in cross section for preventing rotation of the rod in the lower end of the crank arm. By observing Figure 3 it will be seen that upon vertical movement of the oper ating handle 40 that a rotary movement will be imparted through the rod 35 through the crank arm40. v I

The platform operating means F further includes an unlocking lever which extends through a suitable opening 51 in the platform 5 and is pivotally mounted in a. suitable fill bracket 52 mounted upon the floor surface of the plat-form. This lever 50, at a point below the platform 5, is offset as at 53 so as to bring the opening 54 formed at the lower end of the lever, in alignment with the extension rod 35. This offset portion 53 is necessary for bringing the lower end of the lever 50 from under the platform and into alignment with the axial center of the valve rocker shaft 11.; The extension rod 35 is intended to pass through the opening 54 and is provided with a cylindrical portion 55 at a point where it passes through the opening 54, and this cylindrical portion 55 is preferably of a diameter less than the diameter of the opening 54 for allowing rocking of the lever 50 without creating a binding action on. the extension rod. Extending through the rod at the outer side of the offset lever portion, 53 is a stop pin 56 which is engaged by the offset portion for out vard movement of the extension rod upon swinging of the locking lever 50.

The lever 50 is preferably given a one-half twist at a point below the platform 5 for allowing s'uflicient thickness of the metal for forming the opening 54. By observing Figure 1 it will be seen that when the lower end of the lever 50 is swung in the direction of the arrow, that the extension rod 35 will be moved longitudinally away from the valve B and carry the yoke so that the pins 32 will move free of the lugs 22 or 2t and allow for free rotation-of the rod and yoke upon vertical movement of the handle 40.

In operating the valve C from the vestibule platform'5, the operator first movesthe lever 50 in the direction for moving the extension rod longitudinally away from the valve B and withdrawing the pins 32 from engagement with the lug 22 or 2 1, and then moves the handle either upwardly or downwardly in accordance with the desired movement to he imparted to the valve, and after the handle 40 has been moved to its fullest extent the lever is released for allowing the spring 20 to force the pins 32 into engagement with the proper lugs 22 or 24 for retaining the valve in either its open or closed position. i From the foregoing description it will be apparent that a novel and efficient valve operating means for end train pipe valves. has been provided embodying a novel keeper means whereby the valves will be positively held in either an open or closed position against movement due to vibration while the train is in motion, and also embodying a novel platform operating means whereby the valve. may be operated from the vestibule platform of the car.

Changes in detail may be made to the specific form of the invention as herein shown and described, without departing from the spirit of the invention or the scope of the following claims. i

I claim: 1 In a valve operatmg'means, the combination with a valve including a rotatable stem projecting from the'face of the valve body, of a yoke movablymounted on the stem for rotation thereof and having a keeper pin projecting from the inner end of the yoke for engagement with an abutment on the valve body, and spring means acting upon the yoke for normally urging the same toward the valve body and the keeper pin to a position for engagement with the abutment on the valve body.

2'. In a valve operating means, the comblH'ZLtiOII fWlt-h a'valve including a rotatable stem projecting from the face of the valve jecting from the face of the valve body, of akeeper means for maintaining the valve 1n either an open'or closed position comprising an open frame like yoke having a square opening provided at its inner end for slidable mounting of the yoke upon the square stem extension, keeper pins'projecting from the innor'end of the oke for en a ement with abutments on the valve body, and a coil spring encircling the stem extension and acting upon the inner end of the yoke for normally urging the same toward the valve body whereby upon rotation of the yoke the keeper pins will move in the ment on the valve body;

4-; In a valve operatingmeans, the combination with avalve including a valve body having keeper lugs provided on the face thereof and a rotatable stem projecting from the face of the valve body and including a squared stem portion providing an outwardly facing shoulder, of keeper means for maintaining the valve in an open or closed position comprising an openframe like yoke including an inner cross arm provided with a square opening for receiving the squared stein portion of the valve stem, keeper pins projecting from the inner end of the yoke for engagement with the keeper lugs of the valve body, and a coil spring encircling the squared stem portion at the outer side of said yoke cross arm and acting thereupon for normally urging the yoke toward the valve body into engagement with said outwardly facing shoulder on the valve stem. ;I

5. In an operating means for endtrain pipe valves, the combination with a valve inlilo path ofthe abuts r 'cluding a rotatable stem projecting from the face of the valvebody, of a keeper member slidably mounted on the stem for rotation therewith and having engagement with an abutment on the stem, spring means acting upon the keeper member for normally urging the member toward the valve body into engagement with the. abutment on the stem, and an extension rod connected with the outer end of the keeper member for imparting rotary and longitudinal movement to the keeper member.

I 6. In an operating means for end train pipecvalves, the combination with a valve including a rotatable stem projecting from the face of the valve body, of a keeper member slidably mounted on the stem for rotation therewith and having engagement with an abutment on the stem, spring means acting upon the keeper member for normally urging the member toward the valve body into engagement with the abutmenton the stem, an extension rod carried by the keeper member in axial alignment with the valve stem for rotation with the keeper member, means for moving the extension rod longitudinally away from the valve against the tension of said spring, and means for causing rotary movement tothe extension rod when so 1ongitudin ally moved.

7. In an'operating means for end train pipe valves, the combination with a valve including a rotatable stem projecting from the face of the valve body, of a keeper member slidably mounted on the stem for rotation therewith and having engagement with an abutment on the stem, spring means acting upon the keeper member for normally urging the member toward the valve body into engagement with the abutment on the stem, an extension rod connected with the keeper member for rotation therewith, a pivotally mounted unlocking lever acting at one end upon the extension rod for movement of the rod longitudinally in one direction for movement of the keeper member along the valve stem against the tension of said spring, and an operating handle coupled withthe extension rod for rotation thereof when so. longitudinally moved away from the valve.

8. In an operating means for end train pipe valves, the combination'with avalve including a. rotatable stem projecting from the face of the valve body, of a keeper member slidably mounted on the stem for rotation therewith and having engagement with an abutment onthe stem, spring means acting upon the keeper member for normally urging the member toward the valve body into engagement with the abutment on the stem, an extension rod carried by the keeper membor for rotation therewith and extending in axial align-ment with the valve stem, an unlocking lever pivotally mounted above the extension rod and having its lower end en gageable with the rod for movement of the rod longitudinally away from said valve for outward movement of the keeper member, a crank arm coupled to the extension rod for rotary movement thereof upon swinging of the crank arm, and a handle connected with the crank arm for swinging movement thereof when said extension rod is moved longitudinally by the unlocking lever.

9. In an operating means for end train pipe valves, the combination with a valve including a rotatable stem projecting from the face of the valve 'body, of a keeper member slidably mounted on the stem for rotation therewith and having engagement with an abutment on the stem, said member having a square, opening provided at its outer end in axial alignment with the valve stem, spring means acting upon the keeper member for normally urging the membertoward thearm connected with the extension rod for ro- Hm tation thereof upon swinging movement of the crank arm, and a vertically extending op erating handle connected with the crank arm for swinging movement thereof upon outward longitudinal movement of the red by 105 said locking member.

JOSEPH BENTLEY.

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