Untitled record

Application filed April 17, 1891, Serial

No. 469,005, dated February 16, 1893.

No. 389,322. (No model.)

To all lohom it may concern:

Be it known that I, Anton G. Anderson, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illi5 nois, have invented a new and useful Improvement m Floor-Thimbles, of which the following is a specification.

My invention relates to an improvement in tne class of devices employed for incasing io steam-pipes where they pass through the floor and ceiling, and which are technicallv termed floor-thimbles.”

The_objects^of my⁷ improvement are to provide a constructionOf floor-thimble whereby ¹⁵ f ^be ,^rea(W lengthened and shortened to adjust it with considerable accuracy according to the length of the passagUfor it through a floor and ceiling, and to adapt it to be clamped and reliably secured against dis20 engagement of its telescopic sections by a ceiling-plate, which is at the same time held in place by its clamping function.

In the accompanying drawings, Figure 1 is a view representing a broken portion of a ceil²5 +?? ^door in section with my improved thimble operatively applied to a steam-pipe shown as broken away. Fig. 2 is a plan view or a ceilmg-plate. Fig. 3 is a broken view in elevation showing an inclined slot in the lower 30 portion of the external of the two telescopic sections of the thimble. Fig. 4 is a similar view of the internal section provided with a vertical series of alternating seats. Fig. 5 is a broken perspective view showing the upper 35 portion of .the external section provided internally with a stud to engage the seats on the internal section and support thereon the external section.

. A and A' are pipe-sections, the former be⁴⁰ °! ^{a dlam}eter to admit the latter, and thus afford a floor-thimble adapted to be extended or contracted telescopically to correspond with the thickness of the partition B, forming the floor and ceiling portions of divided apart45 ments and through which a steam-pipe C, passes, and is there incased by the floor-thimble. The inner pipe-section A' is provided at its outer end with a stop, preferably in the form of a flange r, and lengthwise along jo'nc side 5° (or more than one side, if desired)'with a series D of seats, formed, preferably, as pockets q, inclining downward in opposite directions from the opposite sides of a straight guidegroove^, which should be continued, as shown in Fig. 4, below the series of seats. Near the 55 lower end of the outer pipe-section is an inclined slot 0, having the entrance 0' to it extending from the extremity⁷ of the section. As in the case of the series of seats D, the slots 0 may⁷ be provided in duplicate, or may 60 be further multiplied on different sides of the pipe-section. Near the upper end of the external pipe-section A, inside the same, is a stud n, adapted to enter the groove p in the inner pipe-section when inserted into the 65 outer one, and permit them to be relatively extended or contracted to any⁷ desired length, when by turning the section A to bring its stud n into the adjacent seat-pocket q it will be suspended therein. As will be noticed, 70 the pockets q at opposite sides of the groove p alternate with each other, thereby to decrease the distance between the bases of adjacent alternating members of each pair and increase accordingly the capacity⁷ for accurate 7 5 adjustment.

While not so desirable, the series of seats D and stud or studs n may obviously be provided, respectively, on the inner surface of the outer pipe-section and on the outer surface of So the inner pipe-section. °

With the thimble adjusted in place, as represented in Fig. 1, around a steam-pipe C, unless means be provided to prevent, there is more or less liability of the suspended lower 85 pipe-section becoming disengaged from its support in a manner to cause the stud n, to coincide with the guide-groove p when it would fall. I prevent any such tendency by adapting a ceiling-plate E to perform, in ad- 90 dition to its usual and well-known function, that of a clamp-nut, by providing it, at a suitable point on its inner periphery, with a stud m, (one for each slot 0,) whereby⁷ to apply the ceiling-plate its stud enters the said 95 slot, and by⁷ turning the ceiling-plate in the proper direction it becomes tightened in place against the surface of the ceiling by the resultant strain exerted on the thimble, which is held at its upper end by the stop r, whereby, 100

469,005

3. In combination, a floor-thimble formed with telescoping pipe-sections A and A , provided on opposing surfaces, respectively, with a stud and a series of seats composed of pockets extending from and alternating with each 35 other on opposite sides of a longitudinal groove, a flange on the outer end of the section A', an inclined groove near the outer end of the section A, and a ceiling-plate having a stud to enter the groove and provided with a 40 set-Screw, substantially as and for the purpose set forth.

4. In combination, a floor-thimble comprising telescoping pipe-sections A and A', the inner section having a flange r and a series 1) 45 of seats formed with pockets q inclining in opposite directions from opposite sides of a longitudinal groove p, and the outer section having inside, toward one end, a stud n, and outside, near its opposite end, an inclined 50 groove 0, and a ceiling-plate E, having a stud m on its inner periphery engaging the groove 0 and a set-screw I, the whole being constructed and arranged to operate substantially as and for the purpose set forth.

ANTON G. ANDERSON.

In presence of—

J. W. DYRENFORTH,

M. J. Frost.

also, the stud n is prevented from rising in its respective seat q, and cannot, therefore, gain access to the groove p..

To further secure the ceiling plate in its ad5 justed position against turning back, and thus loosening the parts, I prefer to provide it with a set-screw I to bear against the pipe-section and hold the ceiling-plate.