US1033354A - Line-pulley. - Google Patents

Description

R. F. SIMMONS.

LINE PULLEY.

APPLIOATION TILED mums, 1912.

Patented July 23, 1912.

' INVENTOR g/Aime,

WITNESSES UNITED STATES PATENT OFFICE.

ROBERT FRANK- SIMMONS, 0E" BROOKLYN, YORK, ASSIGNQB TO NEW STAMPING CONTAIN-if; OEBBOOKZUYN, NEWYOBK, AgGORBOIQATIQhlZ 0F N-EFl YORK.

inte sities.

Specification ot Letters, Patent.

raeent a a i ee, 1912.

Application filgrl llllareh 2G, 19,12. Serial 110. 686,440.

Tov all whom z't-may; concern;

Be itknown that I, ROBERT FRANK SIM- MONS, a citizen ofthe United. States, residing at Brooklyn, in the county. of Kings and State of New York, have invented a. certain new and useful Improvement; in Line-Pulleys, of which the following isa full, clear,

cheeksconstructed, to conform to theshape of and entirelyconceal the side faces'of the pulley wheel or sheave, and haVlDg 11twardly turned flanges at the. entrances to the frame, and a hanger portion adapted to receive a suspending eye orswivel, all substantially as I will proceednow more-particularly to set forth and finally claim,

In the accompanying drawings, illustrating the invention, in the several figures of which like parts are similarly designated, Figure 1 is a side elevation ofthe preferred form. Fig, 2 is an edge View oft-he. pulley of Fig. 1. Fig. 3' is aside elevation, showing another form of suspendingswivel, and Fig. 4 is an edge view thereof. Fig. 5is a side elevation, showing a rigid suspending eye, and Fig. 6. is an edge view thereof.

1 is the sheave, which maybe ofporcelain, or any other suitable rustless material.

The frame comprises the cheek pieces 2, constructed of metal, preferably sheet steel stamped to shape, and as shown in Figs. 1 and 2, these cheek pieces 2 are formed with the sheave embracing portions 3, of substantially the contour of the outer faces of'the sheave and having the semicircular edge 4 coinciding and substantially concentric with the lower edges of the sheaves and the in wardly curved or bent portion 5, coinciding and substantially concentric with and overhanging the upper edges of the sheave, and thus forming a close fit or seat in or upon the cheek pieces for the entire outer or side faces of the sheave. Above said seats or sheave embracing portions, the cheek pieces are provided with extended portions 6', with upwardly converging edges, to form: an entrance 7 at front and back for the cord or rope with which the pulley is to be used, and above the extended portions 6, the cheek pieces are bent inwardly to form ears 8, adapted'to be fastened together, as by rivets 9, the metal of the ears between said rivets being pressed outwardly to form opposing semicircular seats 10,, to constitute a bearing for the shank 11 of the suspending swivel 12, the shank of said swivel passing through said bearing and held therein by means of av washer 13, fit-ted upon its headed end 14.

The cheeks 2 are provided with outwardly and laterally curved or flared flanges 15 beginning at, a; point near the juncture of the nwardly bent portions 5 with the semicircularedges 4, and extending along the extended portions 6 nearly to the tops thereof to constitute a flaring opening or entrance to the frameabovethe sheave at front and back where thecord or rope enters the pulley, to thus prevent wear upon the rope as it, passes. through the pulley, and said flanges; also serve to strengthen the cheek pieces or; frame.

As shown in Figs. 3 and 4, the cheek pieces 2 with the wheel-embracing portions 3 and outwardly turned flanges 15, are of substantially the same. construction as shown in Fi 1 and 2, but in this form of the in- {vei -tion the cheek pieces instead of being made. in two parts, as shown in Figs. 1 and 2, are formed from a single blank and con- ,nected at their upper ends by means of a domeeshaped bridge 16, having a central perforation adapted to receive the rivet 17 for swivelly, connecting the suspending eye 18 to the frame or cheek pieces of the pulley.

The suspending eye 18 in its preferred construction is formed of a single blank of sheetmetal, and comprises a central concavo-convex portion 19 having two perforated cars 20 bent inwardly from the central concavo-convex portion 19 and pressed closely together with their perforations coin ciding, to constitute the eye 21. It will be observed that the rivet 17 passes through the concavoc-onvex portion 19 of the suspending eye 18 and the dome-shaped bridge 16, and is held in place by means of its headed ends 22 with interposed washers 23.

As shown in Figs. 5 and 6, the cheek pieces 2 are substantially the same as those illustrated in Figs. 1, 2, 3 and 4, but in this form of the device the cheek-pieces are formed of two separate pieces and are pro vided with outwardly turned flanges 24 terminating near the upper ends of the cheek pieces, and the suspending eye is made rigid, and is preferably formed of a single piece of metal, comprising two eyes connected by a narrow web 26, the eyes terminating in spacing members 27 having lugs 28 projecting from their opposite sides, adapted to engage slots 29 in the upper ends of the cheek pieces. In assembling the suspending eye to the cheek pieces, the suspending eye is bent or folded upon itself at the connecting web 26 with the eyes 25 coinciding, and the spacing members 27 fitted between the upper ends of the cheek pieces with their lugs 28 passing through the slots 29 in the cheek pieces, the said lugs 28 being bent down upon the outside of the cheek pieces to rigidly secure the parts together.

The sheave l is mounted in the cheek pieces 2 by means of the usual shaft 30.

By the constructions herein shown and described, it will be observed that a line pulley of very simple and economical con struction is provided, and one which is strong and durable and which is effective in use, and which will in no way mar or injure the rope or cable with which it is used.

I do not wish to be understood as limiting the invention to the exact details of construction herein shown and described, as the same may be changed in various particulars without altering the scope of the invention.

lVhat I claim is 1. In a line pulley, a sheave, and a frame in which said sheave is mounted to turn, composed of like cheek-pieces formed of sheet metal, pressed to shape, and including sheave-embracing portions having semicircular edges coinciding with the lower edges of the sheave and inwardly bent portions conforming to and overhanging the upper edges of the sheave and providing seats which closely embrace the sides of the sheave, and upwardly extended portions forming entrances to said frame above the sheave-embracing portions and provided with outwardly turned flanges adjacent to the entrances to said frame, the upper ends of said cheek-pieces being supplied with a suspending eye.

2. In a line pulley, a sheave, and a frame in which said sheave is mounted to turn, composed of like cheek-pieces 2, formed of sheet metal, pressed to shape, and including sheave-embracing portions 3 having semicircular edges l substantially concentric with and extending to the bottom of the sheave, and inwardly bent portions 5 substantially concentric with and overhanging the top of the sheave and providing seats for said sheave, portions 6 extending above the sheave from said inwardly bent portions and forming line entrances to said frame, and outwardly and laterally flared ed'ge flanges 15 extending upwardly on converging lines at the line entrances, the upper ends of said cheek-pieces being united and provided with a suspending device.

3. In a line pulley, a sheave, and a frame in which said sheave is mounted to turn, composed of like cheek-pieces 2 formed of sheet metal, pressed to shape, and including sheave embracing portions 3 having semicircular edges 4;, sheave seating por tions 5, upward. extensions 6 whose edges converge upwardly, said extensions united at their upper portions and provided with a suspending device, the cheek-pieces having the outwardly and laterally flared edge flanges 15 extending from below the upper level of the sheave nearly to the suspending device and forming flared entrances for the line at front and back.

In testimony whereof I have hereunto set my hand this 25th day of March A. D. 1912.

ROBERT FRANK SIMMONS.

lVitnesses HENRY G. ENos'rRoM, F. B. EAsnY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G.

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