US1913566A - Automatic snubbing device - Google Patents

Description

June 13, 1933. w. R. REYNOLDS AUTOMATIC SNUB`BING DEVICE Filed Aug. l5, 1932 lNvENToR MMM/v @Ey/vaas e0 Figurel;

Patented June 13, 1933 1 c i i 1,913,556

UNITED i STATES PATENT iioFFlcl:

` "WILLIAMR, :ennemis or PAssArciNEw JERSF?` i AUTOMATIC sNUn-Binclnnvicn y nppnca'titn. `inea Augut 1a, 1932; Sensi Noyeaaeai.

This invention relates to an automatic bers 6 and Sand isthen looped about the devicevfor snubbing-a line, which may ccnpivoted member 8 and the fixed member 6, ysist of` a rope`,"ca`ble,"cord, band or the like.V whence it may pass through a guide `15 iXed "The objectfo the invention is to provide to the base. `Tension on "the'cord 14 in the 5 Iadevice of thischaracter which combines direction of the` arrow, Figurel, results -in `55 both eiiiciency and compactness, It is so the pivoted member`8 moving anti-clockwise c "designedthat the line to beused therewith Vabout its pivotal point 9 and clamping the `may readily be pulled taut and autocordbetweenits working edge and the work- 1matically. c i 1 ing edgeof the fixed member. `It the cord '10 *In the drawing accompanying this specifiis pulled in the other direction froma point 60 cation I have shownf a preferred form and such asA, Ait will run free. This is dueto fa 1 number of modifications all of which y the placement ofthe pivot 9 at such `a` dishowever embody" the same general principle tancefrom the workingV edge that thereis of `construction embodied in the preferred a momentof force tending to rotate the 15 `form.` 1 1 c l 1 member 8in` aclockwise'direction. If any 65 Referring to the drawing, Figure 1 is a pull however is exerted `o11` the cord 14 in `plan view showing-the preferred `form ot the direction of the arrow, the clamp im- 'the invention; c 1 f mediately tightens and is securely held. It "l Figure 2'is a section on the line` 2 2 of at `any time itis desiredto move the cord,

1 reelyin the direction of the arrow thepiv- "m 11 Figure 3` is a View similar to Figure 1 oted member 8 may be held away from the but showing some of the parts in a different fixed member, and to facilitate this action, position; i y a lever 16 is pivoted ait 17 said lever being 1 1 Figures 4, 5 and 6 are details; `provided with a cam face 18 adapted to, bear `Figure 7 is a somewhat modiiied form of against a pin 19 projecting from the p ivotedy device; and-f 1 1 `member 8p; `Thegrooves 10 and 11 act as ffFigure 8 is a still furthermodication. guides for the cord 14 and in addition there c `Referring to Figure `1,12 is a base-which is providedaguide 20 carried bythe base Amay belin the formcf a` plate of suitable and inline with the working edges of the .c

1materia1 and whichYalso-may` be provided fixed and movablemembers. c Y l :with screw holes`4 whereby it` may be prop- By the arrangement shown a pull on the `erly secured when* the device is in l use.` dine at A acts nthe same direction as the Fixed to or formingpart of the base is a portionlof the line indicated at 14.` VThe member G'preferably semiecircular. Pivoted guide 15"need`not be located inline with` adjacent the-1 member 116 is a semi-heart the working edges of the fixed `and movable 85 shaped member18, thepivot 19 of whichis members butmaybe located at any conpreferablylocated as shown; Thefsubstan- `venient place provided a tension in the ditiallystraight workingedges ofthese memrection of the arrow acts to bring the free bers are slightly separated when the pivoted "end'of the pivotedmember toward the Xed. `me1nber is innormalpositiomtheedges bemember, or in other words, tends to rotate 90 ing at this time substantially parallel `to the pivoted member in an anti-clockwise "I eachother. `The rounded surfaces 'of both direction aboutits pivot 9. In Figure 3 the 1 members may begrooved asshown at 1Q and lever 16 is shown inf its operative position 4all respectively in Figure/2, and the subpermitting the line to bereadily moved in c "stantially straight working edges may also the direction of thearrow Lever 16 may 9 *be groovedas indicated at 12, Figure 2; be arranged to act on the piii`19 from the llhelineor cordwith` which the device is -opposite` side, if desired` l y c 1 bdesigned'to be used isindic'ated at l14 and The line or cord 14 has Vbeen shown as is'passed from theleftehand side, inFigure j round in' cross section in Figures 1 "and2,` 11, lbetween the working edges of Athe memibut it is apparent ofcourse tliatit may take "100 instance if a narrow tape or belt were used.y

Figure 7 shows a somewhat modifiedrforni of the device. In this form they pivot 9a corresponding to the pivot 9 of Figure l, is located outside of the working surface of the semi-heart-shaped member indicated as 8a. The working edges are also shown asV being slightly corrugated as at 22'so that a better grip may be had on the line. Corrugatioiis may of vcourse be used in any of the forms of device shown.

A further modification is shown in Figure 8, the fixed and movable `members being indicated as 6b and 8b respectively.` In this form of device rolling friction has been substituted for sliding friction, the cord 14 passing between the working edges of the fixed and movable members and about a pulley 24 carried by the pivot 9b which may also be the pivot for the movable vmember 8b. The cord then passes about another pulley 25 carried, by the movable member 8b at its free end; thence about a pulley 26 mounted on the base. Guides l5 and Q0 yserve the same function as these guides do in the construction `shown in Figure 1. The pulley 24 is of such diameter that the ymoment of force tends yto rotate the member 8b abou-t its pivot '9b in a clockwise rdirection and thereby ease the pressure between vthe working edges to permit the line 4to run free. e

What I claim as new is 1. In a device of the character described,

in combinatiom'a base, a member fixed ythereing edges when tension isapplied to theend of the line beyond itscontact withI the fixed ,membeix Y 2. In a device of thecha-racter described, in combination, a: base, a member fixed :thereto and having a substantially straight grooved edge,za member pivoted to .the base vand having Yits pivotal point nearrone end of said fixed member 'and rhaving a substantially straight grooved edge adjacent to but separated from the edge of the fixedfmember, and amguide for Athe cordcarriedwby vthe base near the loose end of the pi-voted rmember, said pivoted member .adapted `to clamp the cord :between ,its edge yand the edge of the fixed member when the cord is looped about both members and is pulled about the fixed member in a direction to cause the pivoted member to move on its pivot toward the fixed member.

3. In a device of the character described, in combination, a base, a semi-circular member fixed thereto, a semi-heartshaped member `pivoted to the base adjacent the fixed member so that the straight edges of said members lie substantially parallel to each other but slightly separated when the pivoted member is in normal position, each of said members being peripherally grooved.

4. In a device ofthe character described, in combination, a base, la semi-circular' -member fixed thereto, a semi-heart-shaped member pivoted to the base .adjacent the vfixed member, said members having working edges between which a yline may be passed and looped about the pivoted lmember and the fixed member, the construction and arrangement being such that the line is clamped by said working edges when the cord vis pulled in a direction to cause the p-ivoted member to move toward the fixed n member and means for moving the pivoted member to vrelease the clamping action.

In a device of the character described, in combination, a base, a semi-circularlmem- 'ber fixed the-reto and` lia-ving a groove in its rounded portion of such sizeand shape as to fit a cord or rope and having a shallow groove along its straight edge, a semi-heartshaped member pivoted to the base adjacent saidgfixed member, saidv sein-i-heart-shaped member also having'a groeve :in yitsrounded edge of similar shape and size to the afore, said groove 'and a shallow groove in its straight edge, the piveted member in normal position having its straight edge vspaced slightly from the straight edge of the fixed member and adapted ,to clamp a cord between its edge and the edge of the vfixed member when the 'cord is'loeped about both Vmembers and -is pulled inthe direction .to v:cause the pivoted member to move towards `the fixed member.

6. In a device of the character described,

.in combination, :a base,a semi-circular Kmember fixed -'thereto and having a groove lin its rounded portion-of such ysize and shape as to fit a-cord or rope and having a shallow groove along its straight edge, a semi-heartshaped member pivotedV ad] acent said fixed Y member, said.semi-heartfshaped member also having a groeve -in its rounded portion of similarshape and size, and a shallow groove invits straight edge, the :pivoted membery in normal position having.r its straight edge spaced slightly from the straight yedge v4of' 4.the 'fixed member and adapted to clamp the cord between itsfedge gand the vedge .of the fixed member whenxthe cord :is looped about both members and yis pulled yinthe direction to cause the free end of thepvoted member to move towards the fixed member, and a guide for the oord carried by vthe base substantially in line with the straight portions of said members.

Signed at New York, N. Y.; this sixth day of August 1932.

WILLIAM R. REYNOLDS.

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