US1038797A - Rope-measuring device. - Google Patents

Description

W. 0. SOMMBRPIBLD 6: D. W. MORRIS.

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APPLIOATIOI TILED IOVJO, 1011.

Patented Sept 17,1912.

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Patented Sept. 17, 1912.

To all whom. it may concern 4 Be it known that we WILLIAMO.- Souanzarnzno and Danna. .Momus, citizens of the United-States, the former residing at East Peoria, Tazewell county, Illinois,-and the latter at Peoria in the county of Peoria and State of Illinois, have invented certain new and useful Improvements in R0 e- Measuring Devices, of which the following is a specification.

Our invention relates to a rope measuring device. a

The object of our invention is to provide a positive mechanical actuation of a measuring disk or wheel by the movement of a rope being drawn from acoil and to pro er register such movement upon an in 1- catmg dial.

A further object of our invention is to provide means for holding rope of an size to a positive centering enga cment wi h the ro-. tatablc disk and such t at will not permit any lateral movement of the ro e.

Our invention consists essen ially in the form of a rope holding device in combination with a rotatable toothed disk.

Referring to the drawings, Fi re 1 is a perspective view of the device in position for operation; Fig. 2 is a detail view showing a portion of thestructure with parts broken away to illustrate details of construcand Fig. 8 18 a transverse sectional view rom the top of the device with the top frame part removed.

In the figures, 2 is a frame adapted to be fixed in any desired and convenient place adjacent a supply of re e.

8 is a com arativel t in toothed disk substantially li re a cloc wheel.

4 is a shaft journaled in openings in frame 2, grooved as at 5 and a apte to be engaged at said groove by brake screw 6. Manipulation of the screw willjserve to tension the shaft from turning exce t by the application of a desired degree 0 ,force exerted upon said shaft through'disk 8. .One end of theshaft extends beyond the outer wall of frame 2 and is provided with the worm 7.

8 is a, worm wheel shownin'Figs; Iand 3.. he idialis 'de'signed to be v .properindicating marks or figures in the usual .way.

11 is an indicatorfinger.

12 is a' frictionally actuated pulley wheel formed with a perfect V-groove adapted to properlyl impinge and center a rope of any size wit relation to toothed disk 3 so as to prevent lateral movement of the rope.

18 are trunnions upon pulley wheel 12 journaled in U frame 14 and extending outwardly, bearing'within guide slots 15 in frame 2, and permitting said pulley wheel 12 to reciprocate vertically within certain limitations and to accommodate the carrying of'difi'erent sizes of ro e between the saidpulley wheel and toot red disk 3. wheel 12 is yieldin ly su ported from the web lfisecurcd wit an t e open space in frame 2 by means of rod 17 secured to U frame 14, and depending through a perforation in said web and a coil spring 18 carried a on said rod. Normall the apex of the -groove in pulley 12 wil under the tension of s'prin 18, lie in substantial contact relation wit the teeth of disk 3.

19 is a ide loop or eye connected by arms 20 with rame 2, said loop or eye being designed to be positioned substantially in the same horizontal plane with the intersection or contact between pulley 12 and toothed disk 8 when in normal, inoperative osition and in a vertical lane centerin wit 1 a line drawn through t e center of i oothcd disk 8 and ulley wheel 12. However, this position 0 the guiding eye or loop may be valied to meet the circumstances of use.

The 0 eration of the device is as follows: R9 0 0 any size passed between toothed dis 8 and pulley wheel 12 will be centered so exactly that the toothed disk will bear. upon its longitudinal center and through impingement of the V-groove of pulley whee 12 cannot move laterally. The

assage of the rope between disk 3 and puley 12 will cause the latter to be disposed proportionatel with the size of the rope and to be hel under tension of spring 18 against the r0 e, causin the firm engage- I ment of the la ter with tie teeth of the disk v v sup ortedupon stud 9,2 at the upper end of brac et l0,'said bracket being securedztoj, the side. ofrirame 2 as 8. The movement of the rope between the disk and gulleg will cause 0th pulley 12 "arid dlsk ,to, e turned, the former to facilitate'the easy pull of the rope there- "throughandthe latter to accurately measure Pulley.

the length ofitravel of the disk' SIJ in feet or inches, as maybe desired. The

supportingdiskfi is provided with a b rake, consisting in the screw 6 engaginggroove in t a in shaft 4 to hold the s normally against turning, except under the pull of junction with counter"'friction blocks andwheels but have never known of any structure being developed,= providin proper centering o the rope ,wit relation to a measuring disk-tozprevent any" lateral movement of the ro e. Heretofore in the structures we know a out, measuring wheels have been concaveand their relation to counter friction devices has-been such that the rope might readilybe-carried high or low 11 )on the concave face of wheels employe from t-liespeed of which the correct measuringwas sought to be obtained, thus causing wheel 11] a given length of travel thereover, thus producing inaccuracy.

The essence of our invention lies in the provision of a erfect centering device for the rope with re ation to a disk, the s eed of which is designed to'be measured y dial meter.

for the a variation of the speed of the i- Whatwe claim is Ina rope measuring device, in combination, an open framework adapted to be fixed infan desired osition, a pa ley wheel provide with a groove, means for supporting,.the pulley wheel in a reciprocal relation to St'tld frame comprising a yoke, a stem bearing through a fixed portion of said frame, a coil sprin interposed between the yoke and said-fixe portion, and slots withm the frame, a thin toothed disk, a shaft to which said disk is fixed, journaled in the main: frame and provided with a friction oove near one end and with a worm screw t ereon, a friction brake, comprising a screw in said frame engaging the groove in said shaft, a worm wheel cnga ing the worm on said shaft and provided with a dial face, means for supporting the worm wheel, a fixed indicating finger sup )orted relative to the worm wheel dial and a rope guiding frame connected with said main frame, sub- Copies of thin patent any be obtained for m cents uoh, bi addressing the Commissioner or Patents,

' Wuhinzton, ID. 0.

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