US 885253 A
Description (Le texte OCR peut contenir des erreurs.)
No. 885,258. PATENTED APR. 81, 1908. o. HUMMEL.
APPLICATION FILED NOV.9,1907.
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OSCAR HUMMEL, OF SOUTH OMAHA, NEBRASKA.
Specification of Letters Patent.
Patented April 2l, 190s.
Application alga November 9, 1907. serial No. 401,419. f
To al? whom 'it 'may concern:
Be 1t known that I, OSCAR HUMMEL, a citizen ofl the United States, residing at South`YV Omaha, 1n the county of Douglas and State tion whereby the distal end of the lockingbar may have a positive mounting to insure a true presentation of the tangswithin the `tang-chambers of the locking-rlngs, and will permit the locking-bar to move freely within the recess of the ring-shaft,
To these ends I have devised the construction shown in the accompanying drawing, wherein,-
Figures 1 and 2 are views of my invention in longitudinal section, showin the parts, repectively, in locked and unloc -elpositions ig. 3 is a side view of they U-sha ed casing with lookin -rings thereon; andy ig. 4 is a sideview o the U-shaped ,locking-member used in connection therewith. Fig. 5 is an `end view, somewhat reduced, of Fig. 3 show ing the open ends of the casings. Figs. 6, 7 and 81 are enlarged views of an one of the locking-rings, Fig. 6 being an en view. Fig.
.7 is a view of the locking-ring, sectioned on line b b, and Fig. 8 is a view thereof, sectioned on line a a of Flg.` 6. tudinal section, ofthe recessed ring-shaft.
Referring to, the drawing for a more particular descri tion, numeral 1 indicates a sleeve vrefera ly. formed as a cylinder, longitudina lyand clrcularly recessed the eater part of lts length, as at 2; and I provide the ring-shaft Shaving a circular recess 45 formed therein the greater art ofits length, with a convergently-forme inner wall 5 defining the closed end of the recess, and at its free end having the annular holding flange 7 thereon, this flan e being formed with a slot 8 of greater radia extent than slot 6 .of ring shaft 3. The end-piece 9 is employed conlprisin a rectangular plate with outwardlycurve ends 10 and curved inwardly between its ends as at 11 for convenience, and has se- Fig. 9 is a view in longil cured thereon near one of its ends the sleeve 1, the rin shaft 3 being secured upon its opposite en and the lnountinO ofthe arts belng. such that the longitudlnal' wa sof recesses 2 and 4 will be ad'acent and parallel; and the parts thus described may be said to represent a U-shaped casing 12.
I construct a U-shaped locking-member 13, best shown in Fig. 4, comprisingt the cylindrically-formed bar 1-4 and a locklng-b'ar 15, each rigidly secured, parallel and adjacent, upon the end-piece 16, the latter havin the same convenient sha e as end-piece 9; Iocking-bar 15 is provide with a seriesl of lugs' or tangs 17, disposed in longitudinal alinement and extending at substantially right angles from its body, its free end having a circularly tapered wall 18 formed with a lesser inclination than wall 5 of recess 4.
The bar 14'and locking bar 15 are adapted to have a sliding movement within recesses 2 and 4, respectively, tangs 17 traversin slot 8-and slot 6; and when the inward s iding movement has been completed, the tangs are dis osed within slot 6; at this time the pointel end of the locking-bar makes contact with the contracted end-wall 5 which defines the closed terminal of recess 4'; the result of this particular contact and mounting for locking-bar 15 is that it may be constructed with a considerable less diameter than that of the recess, but will be reliably 4positioned at its transverse center; and on account of this difference in diameter the locking-bar will slide within the recess without obstruction a close fitting of these parts is objectionable,becau se defacement or accumulatedfrust Would prevent the required free sliding movement, and it is important that tangsy 17 make a true presentation, transversely; within the recesses ofthe lockin -rings, presently tobe considered.
construct cylindrical locking-rings- 19, each formed with an annular chamber.. or recess 20, best shown in Figs. 7 and 8, and having a circular'opening 21 of less radial extent than recess 20, thereby forming the transverse, circular engaging-wallor ward 22, and
lin wall or ward 22 is formed the longitudinal slot 23 opening upon recess 2,0. 'As thus constructed, the locking-rings are similarly formed, the number employed corresponding to the number of tangs upon locking bar 15; and I employ a,rotatable, blank rin 24, similar in external ap earance to loc ingrings 19, and, in assem ling the parts, these rin s are rotatably seated upon ring shaft 3 an are held* thereon by flange 7. The locking-rings are indexed so that the operator may know when slots 23 thereof are in aline- 'ment with slot 6, and when so alined, locking-bar 15 may be passed wholly within recess 4, bar 14 also entering recess 2, and when thus positioned, the parts will bedisposed as shown in Fig; 2, tangs 17 being within recesses 20, and slots 23 immediately at the rear of the tangs, the partsbeing unlocked. The locking-rings, when thereafterr rotated, assume positions so that slots 223 are not in alinement and a withdrawal of locking-bar 15 is prevented, because the transverse walls 0r `wards 22 are interposed; and
the several parts when in thislocked'posif' readily accomplish this, since certain predetermined characters upon .the index 'are by him placed in alinement.
The annular flanges or collars.25 are provided forbar 14 and for lockingbar 15, and are secured adjacent end-piece 16; and when lookin the parts, the inner wall of end-piece 16 maes contact with the end of -the recessed sleeve 1 and with flange 7, collars 25 entering recesses V2 and 4; at this time the central, pointed end of the lookin -bar contacts with the contracted, centra terminal of recess 4, and the locking bar, when pressed inward, isd thereby forced to a true, central bearing and is thereby disposed at the ycenter of recess 4;
By the foregoing construction vibration of transverse center, oi recess 4 the tangs, vdurinla part of the rotation of the locking-rings, w' make contact with walls y2 2 and thereby prevent the desirable, free, rotatable movement of the locking-rings, but according to the construction shown, this objectionable feature is avoided.V The differencein the inj clination of wall 18 and wall 5 permits the terminal end of the locking-bar to reach Ya central bearing within recess 4 without ob# struction.
. bars, lookin members and being of such smaller diameter.Y
than said recesses as tojlie out of contact with the side walls thereof saidbars having pointed ends and the end walls of the recesses having concave centrally disposed recesses adapted to receive the pointed ends of the bars to thereby center said bars in said recesses.
2. In a 4device of the character described the combination with an end member of two longitudinally recessed members rigidly se-` cured to said end member, a second end member, rigid bars secured to said second.
end member, tangs carried by one of said devices -carried by one of the longitudinal y recessed members adapted to Yengage said tangs, both of said bars vbeing adapted to enter the longitudinally Lrecessed members and being of such smaller diameter than said recesses as to lie outv of contact with the side walls thereof, said bars having ointed ends, the end walls of the recesses aving concavecentrally disposed recesses adapted to receive the pointed ends of the bars to thereby center said bars in said recesses,land collars carried by said bars adj acent the second end membersaid collars be'- ing substantially of the sameA diameter as said recesses to thereby prevent Alateral movement of the lbars when theparts are locked together; Y
3. 1n a devi-ceoffthe character'described the combination with an end member of two longitudinally recessed members rigidly' se-I cured` to said end member, a second end member, rigid bars secured to said second end member, tangs carried by one ofssaid bars, locking devices carried by one of the longitudinally recessed members adapted to engage said tangs, both of said bars being` adapted to enter the longitudinally recessed members and being of such smaller diameter than said recesses as vto lie out of contact with 'the side walls thereof and means for centering said bars in said recesses.
t 1n testimony whereof I have aiiixed my signature 1n presence of two witnesses.
)Witnesses I HIRAM 4A. STURGE's, ALBERT SWARTZLANDER.