US671643A - Rocking or oscillating stuffing-box. - Google Patents

Description

Patented Apr. 9, |90. G. TESSIER;

ROCKING 0R DSCILLATING `STUFFING BOX.

(Application led June 14, 1900.)

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No. 67|,643. Patented Apr. 9, |90l. G. TESSIER.

RDCKING 0R DSCILLATING STUFFING BOX.

\App1ication med June 14, 1900.) (No Ilodel.) 2 Sheets-Sheet 2.

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UNITED STATES PATENT OFFICE.

GASTON TESSIER, OF NANTES, FRANCE.

SPECIFICATION forming part f Letters Patent N0. 671,643, dated April 9, 1901.

Application filed J' une 14, 1900.

' of Nantes, France, haveinvented certain new and useful Improvements in Rocking or Os` cillating Stuffing-Boxes, of which the followinwg is a specification.

My present invention relates to stuffingboxes, and has for its object to provide an oscillating or rocking stuffing-box constructed and combined as hereinafter fully described and claimed.

In the accompanying drawings, Figure l is a vertical section on line X X of Fig. 2. 2 is a top plan view of the stufIing-box.

Referring by numerals to the drawings, 1 represents a casing or socket preferably made ofbronze and adapted to oscillate by its lower suitably-seated edge on a swivel 2, having a spherical upper side and a flat under side. The 'iiat portion of the swivel 2 is adapted to move on the bronze seating 3,screwed or otherf wise secured tothe iiange 4, made of cast-iron. The contacting surfaces between the casing, the swivel, and the seating are suitably polished or made smooth in order to avoid any escape of steam. YThe joint is made steam` tight internally by means of suitable packing at 5, said packing being adapted to be progressively compressed by means of a threaded sleeve 6, screwed into the casing 1, as shown. The upper part of the casing 1 fits snugly to the piston; but in order to receive the packing and to set the bearing-base out from the piston the lower half is enlarged to form av chamber, terminating with the casing itselfthat is, where it ends in its seat upon the swivel. This construction involves that the sleeve 6 shall engage with the casing above the swivel and facilitates assembling and dismantling of parts, since the line of separation is at the contact between the casing and swivel. The radius of the spherical surface Fig.

Serial No. 20,242. (No model.)

of the swivel 2 is made equal to one and two- .thirds of the diameter of the piston-rod.

The apparatus may be provided with a device for automatically releasing the packing, said device comprising a movable follower 7, inserted into the sleeve 6 and pressed against the packing by means of a coiled spring 8,

held within the sleeve 6 by means of .a threadedV sleeve 9, screwed into the latter. When the parts 7 8 9 are omitted, the sleeve 6` is formed so that its inner surface contacts with rthe surface of the piston-rod.

Pressingon the upper edge of the casing l` is a suitable coil-spring 10, serving to hold said casing in close contact with the upper sideof the swivel.

The swivel may be made of concave or convexshape.

V The above-described construction may be applied to any steam-engines or any motors with considerable advantages.

Having fully described my invention, what I claim, and desire to secure by Letters Patent, is

In a stuffing-box, the combination o f the casing l fitting snugly by its upper half to the piston-rod, and enlarged into a chamber asrto its lower half, the swivel 2 with which the extreme lower edge of the casing engages,

the packing 5 in said chamber, the sleeve (5- the sleeve 9, threaded into the lower `end of GASTON TEssiEE.

Witnesses:

V. FERRE, BAETHA L. BEITTAIN.

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