US337884A - Atjgtjsto stiglee - Google Patents

Description

(No Model.)

A. STIGLER.

BEARING.

No. 337,884. Patented Mar. 16, 1886.

Tarts AUGUSTO STIGLER, OF MILAN, ITALY.

BEARING.

ESPECIPICATION forming part of Letters Patent No. 337,884, dated IViarch 16, 1886.

Application filed December 15, 1885. Serial No. 185,7!4.

(N0 model.) Patented in Italy August 10, 1885, XIX, 18,742, XXXVII,

139, and September 19, 1835, XlX, 18,869, XXXVII, 347, and in England December 1, 1885, No.1-l,Tli"2.

To all whom, it may concern.-

Be it known that I, AUGUSTO STIGLER, engineer, a subject of the King of Italy, residing at Milan, Italy, have invented certain new and useful Improvements in Bearings; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Thisinvention relates to bearings for powertransmitting shafts, and is designed to simplify and cheapen the construction thereof and render them more efficient.

Various constructions have heretofore been proposed to provide convenient and efficient bearings for shafting, so constructed as to adapt the same for horizontal and vertical adjustment, and to permit the shaft'bearing to rotate horizontally and vertically on suitable pivots. These well-known shaftbearings present, however, various disadvantages. Among others the following may be mentioned: In this class of shaft-bearings the free bearingtrunnions for the bearing proper are moderatelylong, and, besides this, the said bearing is usually connected with its pivot by means of clampingscrews-an arrangement which is not practicable in cases where the transmitting-belt is kept at a high tension. On the other hand, the adjustment of the parts by means of clamping-screws practically results in a rigid connection, which forbids all. movement, except in the hanger or bracket to which the bearing is pivoted. Furthermore, the several parts of the bearing must be strong, in order to withstand the strain and support the weight, and are necessarily very heavy. These are usually also composed of many parts that require skillful labor in their construction and to finish the same, and entail heavy expenses, that have heretofore precluded their general use.

This invention has for its object to avoid the disadvantages enumerated, to provide a comparatively cheap and efficient shaft-bearing, to bring the said bearing in as close proximity to its hanger or bracket as possible, and to so construct the same as to adapt it not only for vertical and horizontal adjustment, but also for vertical and horizontal movement in its supports.

To these ends the invention consists in a novel construction of hanger or bracket and in a novel construction of shaft-bearing, whereby the latter is supported above the plane of its connection with the hanger or bracket, and whereby said bearingis adapted to be adjusted vertically and horizontally and to rotate on vertical and horizontal pivots, substantially as hereinafter fully described, and as specifically pointed out in the claim.

In the accompanying drawings, which form a part of this application, I have shown in Figure 1, by a sectional side elevation, my improved shaft-bearing in its application to a shaft-hanger. Fig. 2 isafront elevation thereof. Fig. 3 is a sectional side elevation of the bearing, illustrating its application to a bracket-support; and Fig. 4 is a top plan view of Fig. 3.

Like letters of reference indicate like parts in all the figures of the drawings, and referring more particularly to Figs. 1 and 2.

B and 0 indicate the two half-collars that constitute the sleevebearing for the shaft, the upper half being, as usual, detachably connected with thelower half and secured thereto by means of bolts. On the lower half, 0, of the bearing is formed a short shaft or pivot, 0, provided with ascrew-threaded extension, at, and said shaft is fitted and has its bearings in a sleeve, D. At or near the upper end of sleeve D, and at right angles to its vertical axis, is formed a short shaft or pivot, D, provided with a screw-threaded extension, (1, which shaft D is fitted and has its bearingsin a sleeve, a, formed on the lower end of a hanger, A. The sleeves a and D have perforated lugs or brackets g f, respectively, through which project the screw'threaded extensions of the shafts D O, as shown.

The vertical adjustment of the shaft-bearing in its supporting-sleeve D is effected by means of nuts i i on the threaded extension of shaft 0, which nuts bear on the opposite inner and outer faces of the lug or bracket f of sleeve D,

and the horizontal adjustment of said shaftbearing is effected through the medium of its supporting-sleeve and its shaft D by'the nuts 5 1', bearing against the inner and outer faces of the lug or bracket 9 on the rear end of sleeve on.

By means of the described construction the shaft is supported from bearings located above the plane of their support, and said'bearings may be brought in as close proximity as possible to the said support. At the same time it is obvious that both the shafts G and D are free to rotate in their sleeves when adjusted, the nuts it and *2 i not interfering with such movement. Besides this, the length of the bearings for the shaft-bearing sleeve D may be increased at will, according to the weight supports, to afford the required bearing-surface and to reduce the tendency to flexure under the weight of the shafting to a minimum.

By means of the described arrangement I am enabled to produce a hearing more solid or stronger and much lighter, and at the same time of simpler construction, than any shaft-bearing heretofore used for like purposes, and a hearing which retains its mobility on both its vertical and horizontal pivots, notwithstanding the fact that'the nuts 5 and i are screwed up tightly. 1am also enabled to use the shaftbearing either on hangers or on brackets, the latter being provided with a bearing-sleeve, a, as shown in Figs. 3 and 4; and, lastly, the arrangement of the parts is such as to demand much less labor in their construction.

What I claim is In universal transmitting-shaft bearings, a support consisting of a vertical sleeve, D, for the reception of the shaft or pivot O of the bearing proper, and a horizontal shaft or pivot, D, extending from the upper end of said sleeve, which has its hearings in the horizontal sleeve a of the main support, in which the axial displacement of the pivots O D may be effected by means of screws d d, which are guided by lugs or projections on the sleeves D a, and in which they are adjustable, substantially as and for the purpose specified.

In testimony whereof I aflix my signature in presence of two witnesses.

AUGUSTO STIGDER.

Witnesses: I

ADOLF RINDERKUEOHT, BARTHELEMY N IOOVTZ.

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