1,558,925 Oct. 27, 1925. L. H. ROGERS THROTTLE ROD STUFFING Box Filed July 16, 1924

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Patented Oct. 27, 1925. 1,558,925 UNITED STATES PATENT OFFICE. LEE H. RoGERs, OF KANSAs CITY, MISSouRI, AssIGNOR. To GUSTIN-BACON MANU FACTURING COMPANY, OF KANSAs CITY, MISSOURI, A CORPORATION OF MISSOURI, TEIROTE-ROD STUFFING BOX, Application filed July 16, 1924. Serial No. 726,298. To all whom it may concern; held against the edges of the opening 2 by Be it known that I, LEE H. RoGERs, a the stud bolts 5 which pass through the citizen of the United States, residing at flange 6 of the stuffing box 4. Kansas City, in the county of Jackson and The stuffing box has a cylindrical interior 5 State of Missouri, have invented certain new with a restricted throat 7 adjacent to the 60 and useful Improvements in Throttle-Rod boiler. The restricted throat receives the . Stuffing Boxes; and I do declare the follow restricted end 8 of a gland or throat ring 9 ing to be a full, clear, and exact description which fits in the stuffing box and through of the invention, such as will enable others which projects the throttle valve stem 10. 10 skilled in the art to which it appertains to The throttle valve stem 10 may be operated 65 make and use the same, reference being had by any suitable means and it may E con to the accompanying drawings, and to the nected to the throttle in any appropriate figures of reference marked thereon, which manner, these connections constituting no form a part of this specification. part of my present invention. ls. This invention relates to a throttle rod The end of the stuffing box distant from 70 stuffing box particularly adapted for use in the boiler has an opening of the same diam connection with locomotive boilers. eter as the major portion of the bore of the Prior to my invention stuffing boxes have stuffing box and within the end is a cylin been in common use conforming generally drical valve 11 open at its inner end and 20 to the construction illustrated in the patent provided with a transverse opening 12 in 75 to Daley and Long, No. 934,289, of Septem its wall to register with the opening 13 ber 14, 1909. While the stuffing box so con which communicates the storage chamber 14 structed admirably served its purpose as a with the interior of the stuffing box. stuffing box, it was open to the serious ob The storage chamber may be cast integral 25 jection that the pin 11 illustrated in said with the stuffing box and at its upper end 80 patent was frequently sheared off so there it is provided with an internally threaded was no assurance that the ports 5 and 9 were portion 15 to receive the threads 16 of a in register, consequently difficulty frequently ram in the form of a compresser screw 17 arose in packing the stuffing box. I have which may put the packing under compres 80 provided a stuffing box which eliminates this sion to force it into the packing chamber 1885 objection and which in actual practice costs of the stuffing box 4. - less to manufacture than the stuffing boxes The cylindrical valve is provided with a heretofore used. t shoulder 19 against which may abut a plate I have also provided means for quick or ring 20 fastened to the stuffing box 4 by 35 easy assembly and disassociation of parts the bolts 21 and 22. The ring or plate 20 is 90 and the invention consists in certain novel provided with indicia 23 to indicate when parts and combinations of parts, all of the charging chamber and the port opening which will be specifically referred to here 12 are in register and additional indicia, 24 inafter, reference being had to the accom to indicate when they are out of register, 40 panying drawings, in which - the valve being adapted to be turned by any 95 Fig.1 is a vertical, longitudinal, sectional appropriate crank or wrench which may eli view through a stuffing box constructed in age the polygonal end 25 of the valve and accordance with my invention. reference to Figs, 1, 2 and 4, it will be Fig. 2 is an end elevational view of the observed that there is an indicator or stop 45 same. . . . . pin 26 on the valve which when it is adja- 100 Fig. 3 is a perspective view of the stuff cent to the indicia 23 will indicate that the ingr and . . storage chamber may communicate with the ig. 4 is a detailed perspective view of packing chamber and which when it is adja the valve for controlling communication cent to the indicia, 24 will indicate that com 50 between the storage chamber and the stuff munication between the storage chamber and ing chamber. the packing chamber has been cut off. The boiler head may be part of a con WE the parts are assembled with the ventional steam boiler provided with an ring plate 20 holding the valve 11 against . opening 2 to receive the rounded end 3 of longitudinal movement but permitting it to the stuffing box 4, the end 3 being tightly rotate, packing matérial 26 may beintro-lio

1,558,925 duced into the storage chamber 14. The What I claim and desire to secure by Let screw or ram may then force it into the ters-Patent is:- 30 packing chamber provided of course that the 1. A stuffing box comprising a housing port 12 registers with the port 13. open at both ends and having a packing feed If one charge of the storage chamber is opening in its side wall, a gland closing one insufficient to fill the packing chamber, as it end of the housing, a combination gland and will be if the storage chamber is made of cylinder valve member closing the opposite 35. less capacity than the packing chamber, the end of the housing and having an opening screw or ran will be removed and additional in its side wall registerable with the packing 10 packing put in, the ran will be turned to feed opening, and a keeper retaining the force the packing into the packing chamber combination gland and cylinder valve mem until the packing chamber becomes entirely ber in the housing. 40 full and adequately packed, then the valve 2. A stuffing box laving a longitudinal will be turned so as to close off communica chamber through which a throttle valve stem 5 tion between the packing chamber and the may pass and provided with an inlet open storage chamber. The packing will now be ing in its wall at right angles to the axis of complete but whenever the device needs re the stuffing box, a throat ring at one end of 45 packing, it will be only necessary to turn the the chamber having an opening for tightly valve to the position shown in Fig. 1 and fitting the throttle valve stem, a rotary valve 20 complete the repacking as above described. within the stuffing box chamber having an Of course initially some packing may be opening through which the throttle valve put into the packing chamber before the stem may pass and provided with an open 50 valve is introduced and secured, but after ing in its wall adapted to be brought into that all of the packing will generally be fed and out of register with the opening and 25 into the packing chamber by means of the the stuffing box, and means whereby the ram and I therefore consider it not inapt to valve may be rotated. designate the storage chamber as a charging In testimony whereof I affix my signature. chamber and the ram as a charging device. LEE H. ROGERS.