US527305A - Chain hod elevator - Google Patents

Description

(No Model.) 2 sheets-sheet 1. Gr. P.; WERN. CHAIN HOD ELBVATOR.

No. 527,305. Patented Oct. 9,1894.

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(No Model.) 2 Sheets-Sheet 2. G. P. WBRN. CHAIN HOD ELEVATOR.

N0. 527,305. Patented Oct. 9,1894.

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STATES PATENT OFFICE.

GUSTAF PERSON WERN, OF BROOKLYN, ASSIGNOR TO THE PELI'IAM HOD ELEVATING COMPANY, OF NEW YORK, N. Y.

CHAI N HOD- ELEVATO R.

SPECIFICATION forming part of Letters Patent No. 527,305, dated October 9, 1894.

l Application tiled January 18, 18194. Serial N0. 497,266 (No model.)

To all whom it may concern:

Be it known that I, GUSTAF PERSON WERN, of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Chain Hod-Elevators, of which the following is a full, clear, and exact description. l

The object of the invention is to provide certain new and useful improvements in chain lied-elevators, whereby the driving shafts are securely held in proper positionto prevent undue friction and binding in the bearings.

The invention consists of certain parts and details, and combinations of the same, as will be fully described hereinafter and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the gures.

Figure l is a side elevation of the improvement with parts in section. Fig. 2 is a front elevation of the same with parts in section. Fig. 3 is a sectional plan view of one of the standards, on the line 3-3 of Fig. l; and Eig. 4 is a perspective view of the bottom brace. In the drawings only the upper part of the y entire hod elevator is shown, as the lower part is similarly constructed, and hence further description of the same is not deemed necessary.

The upper part of the hod elevator is provided with a frame A, having two standards A and A2 supported on longitudinally extending beams B and B respectively, set on suitable supports in the upper part of the building and connected with each other by a bottom cross brace B2. Each of the standards A and A2 is constructed of two T-irons A3 and A4, as is plainly shown in Figs. l and 3, the said Tirons being parallel in their upper part, and

bent outward at their lower ends to form a foot shaft D. The outer ends of th'e shaft D are journaled in bearing boxes F, each preferably made of.brass cast in one solid piece and having its outer surface rounded, as is plainly illustrated in Fig. 2. Each box F is seated with its lower half in a corresponding shaped block G, bolted or otherwise secured to the T-irons A3 and A4 of the corresponding standard A or 'A2, the said block G thus holding the parallel parts of the two T-irons A8 and A4 proper distances apart. On the top of each box F rests the lower concave end of a block G' formed with an interior screw thread engaged by a screw bolt G2, hung on a; pivot Gi secured in a block G4 bolted to the Tirons A3 and A4, as is plainly shown in Figs. l and 2. New, it will be seen that each bearing F, with its blocks G and G' forms a universal joint, y

so that any wabbling motion of the shaft D or of the frame or the individual parts thereof, will not cause the shaft D to bind in its journal boxes F, nor the latter in their supports, the blocks G and G.

By the arrangement described, the journal boxes F can be quickly removed from the end of the shaft by screwing the upper block G' y upward on the screw G2 and then slipping the box oft the end of the shaft, it being understood that the corresponding crank arm E has been previously removed. A new boxF can then be readily inserted in place, seated on the fixed block G and again engaged by the adjustable block G', by screwing the latter downward on its screw. On the shaft D is secured the usual sprocket Wheel D', under which passes a sprocket chain H, extending upward and passing over a sprocket wheel H fastened on the driving shaft I, carrying the drum I', over which passes the elevating chainK provided with transverse rods K to carry the hods. y This shaft I is provided at its ends with bearing boxes F similar in construction to the bearing boxes F previously described, the said boxes F' being held in a casing L comprising the fixed blocks L' bolted to the upper endslof the T-irons A3 and A4 ot' the corresponding standards A' and A2, as is plainly shown in the drawings. On this block L is pivoted the cap L2 by a bolt L3 passing into the block L. See Fig. 1. It will IOO be seen that the boxes F in the casings L can turn sufciently to compensate for any Wabbling motion of the shaft I, thus preventing binding of the shaft I in its bearings.

The transverse brace C previously mentioned is provided with the two bars C and C2, terminating in bolts C3, passing through apertured cross pieces O4, abutting against the outer faces of the two corresponding T-irons A2 and A4. A nut C5 screws on the outer threaded end of each bolt C3 to abut against the outer face of the cross piece C4, to securely fasten the latter in place and hold the bars C or C2 in a proper position. Each bolt C2 rests on a bolt C6 connecting the two T-irons A3 and A4 of the corresponding standards A and`A2 togetherJ The two bars C and C2 are connected with each other by diagonal braces C7 and C8, as is plainly shown in Fig. 2. The ends of each of said braces are formed with plates C9, adapted to abut against the inner face of the correponding T-irons A3 and A4, the said plates being directly opposite the corresponding cross plate C4. Each of the plates C2 is formed with a notch adapted to pass upon the corresponding bolt 02 of the bars C and C2, as will be readily understood by reference to Fig. 1. Thus, when the. brace C is in position and the nuts C5 are screwed up, the several parts of v the brace are securely held in position and form a very strong connection for the two standards A and A2, to prevent lateral displacement of the said standards. By this arrangement the driving shafts D and I are not liable to bind in their bearings and should a heavy strain be exerted on the said shafts, their boxes F F can move sufficienti-y in their bearings to prevent binding.

The bottom brace B2 for connecting the beams B, B with each other is preferably made of asingle piece of castiron, as is plainly shown in Fig. 4, and is provided with diagonal arms each formed at its outer end with a flange B3 abutting against the inner face of the usual ratchet wheel D2 engaged by a pawl D3 yheld on the standard A2 to prevent an accidental return movement of the said shaft.

Having thus fully described my invention,

`I claim as new and desire to secure by Letters Patentn l. In achain hed-elevator, the combination with a frame VYhaving standards .connected with each other, of fixed blocks attached to the said standards, bearing boxes having curved exterior surfaces seated in the said fixed blocks, a shaft journaled in the said bearing boxes, adjustablel blocks engaging, with their concave under surfaces, the said bearing boxes opposite the xed blocks, and pivoted screw rods on which screw the said adjustable blocks, substantially as shown and described. W 2. In a chain hod-elevator, the combination with a frame having standards connected with each other, of xed blocks attached to the said standards, bearing boxes having curved exterior surfaces seated in the said fixed blocks, a shaft journaled in the said bearing boxes, adjustable blocks engaging, with their concave under surfaces, the said bearing,boxes opposite the fixed blocks, pivoted screw rods on which screw the said adjustable blocks, and blocks fixed in the said standards and carrying the pivots for the saidV screw rods, substantially'as shown and described.

3. A chain hod elevator, provided with a frame comprising two standards, each formed of two T-irons, blocks for fastening the T- irons together, a transverse brace for con-` necting the standards with each other, the said brace comprising two horizontal bars formed with bolts at their ends, plates engaged by the said bolts and bearing against the said plates, and diagonal braces formed with flanges having notches engaging the said bolts, substantially as shown and described.

4. A chain hod elevator, provided with a frame comprising two standards, each formed of two T-irons, blocks for fastening the T- irons together, a transverse brace for connecting the standards with each other, the said brace comprising two horizontal bars formed with bolts at their ends, plates engaged bythe said bolts and bearing against the said plates, diagonal braces formed with flanges having notches engaging the said bolts, and bolts connecting the T-irons with each other and adapted to form a rest for the bolts of the horizontalv bars, substantially as shown and described.

GUSTAF PERSON WERN.

Witnesses:

THEO. G. HosTER, J No. M. RITTER.

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