US1742689A

US1742689A - Lever

Info

Publication number: US1742689A
Application number: US154568A
Authority: US
Inventors: Franklin F Chandler
Original assignee: Ross Gear and Tool Co Inc
Current assignee: Ross Gear and Tool Co Inc
Priority date: 1926-12-13
Filing date: 1926-12-13
Publication date: 1930-01-07
Anticipated expiration: 1947-01-07

Description

Jan. 7, 1930. F. F. CHANDLER 1,742,689

LEVER Filed Deo. 1s, 1926 gsm@ Patented Jan. 7, 1930 COMPANY, 0F LA FAYETTE, INDIANA,` A CoRroRA'rI/ON on INDIANA l Lnvnrt Application nea December 13, reze; si-ii 154,5.

This iirvention is a nevel improvementl iny levers to b`e attached to tubes or rods, and

means for attachingthelevers solthat all l b the strains on the levers due to the attachlrnent shall be tension strains that vvill not tend'to vdeforrn the riginalshape of the lever. The principal object o-f the `invention is to provide a simple and efficient lever, preferably formed of ai metal' stamping" and 16 adapted to be securely attached to a tube or rod of' circular or` cylindrical cross-'section Without having to cut lieyways ory slots therein; and to' provide novel attaching devices' so designed that when the lever is secured to a tube or idd all ofthe internal strains in the lever due to its attachment toitlie tiibe orrod will be tensile strains and'not' bending or transverse strains which would tendy to de-V forin the originalshape ofthe lever.

Another Objeee or the mennen iste' prg-'' vide a stamped nhetalv lever4 so designed vas to shape and: attaching. ineans that it can be' readily rernoved. radially from atiib'elor, red,4

thereby obviatingtlie necessity of having, tf.

'25 slide the lever over. the. end. ofthe er whenY attaching or re1'nf ')'v1ng same therefrom.

v Other objects ofthe invention areto prc duce a stamped, metal lever which can beA readily secured in any desired position on a tube or. rod' and as readily detached; als a lever locking ineans that can be applied; froiri either side of the lever, andY will efectually secure the lever to thetube or rod when in-V L serted froin .either side-5l also t'oprovide a lever a and locking devices therefor in which thereaction of the locking'keyon a thin. tube will not depress .ory cave inthe tube -by thepressure:

of the lkey orithe tube also to` providea: lever of relatively great strength, andlo'cking devicestherefor, Whichcan beproducedy economic ally from aY Inininiurn of* original .'rnetal n with practically no. Waste fabrcationl Otherl minor objects of` the `inventionwvill be lhereinafter set for-th. l

IWillfirst explainthe invention with ref-y erence' wfhe'eewmpeerihe drawing Whisk illustrates practical ernbodirnents ,thereof will.V enable others familiar the Aart', to adopt `and use the saine g'and then.suinnarize.y in the clains tlie'novel features of constructionz and. novel corhbiriations of p'arts for which protectin' is desired.

Fig. L is ai side vievv'of one form of lever atta'ehed to al tube or rod by the novel' lock-v ine'. means' 'Fifg 2 is e similar' view 0f' the Oppsite side of'Fig.' 1'; l V l Fig., 3 is a transverse 'section on the line 3+3Fs2a Fig. l is"y at'ransverse section on the line efgi l 4Iriigws is` a; view similar' to;A Figi. 3 showing a spacer used wvi'th thevinodified foriri Qf'lever 11e-6' iS Viv similar' to Fie-. 3 shoving' a slight inodilieatin ofthe lever l virg.^r is a view Jsimilar te Fig. 4f er the mqdiseuiievfshcwn innig". 5'; y i 8 isr a"'sectionall iliewsirnilarl to Fig. 4' illustratiri"gA the.y rlloyrn'ent AofA 'a case lever Fig. 9is1a. sidefvleyviof Fig. 8; Fig. 1 0 a'deta'til of a spacer detached. The lever as" shotwn in Figs. I te 'Z' is pref'- erab'ly 4' forrned of f sheet rnetal staniiping of any' desired' length andthekness having a return bend at one endythe leg.l"`-f of the bend lyingparallel Witli'the iiiain body of the lever. The leg l may fdesired be of'sainelength as the hddy.l vThe body lr can be shaped and proportioned according to the particular use-fr Which thelever is designed es shown inligspc and 7 aline'` they i leg la areoppositeaXially aligned,open'v 1n'gsf1?, adapted'A td engagea tube or rod T which estende thereairougn- The` diameter o`f the openings l. is' preferably such as to neatly baps'iiaatiy engagent@ tube @what thelever Vte be attached. The axes f open# ing lb', are preferably located a distance from the center ofgtlie. inner .face ofthe bend.r of 'l the. lever. slightly less than the distance between the innerfaces` of the bodyl and .legla ofv the. lever, for the purpose hereinafter Sp edi i masse in. Figures 3 to e, Vthe openings.

As shown in Figures 8 and 9 the lever 1X is made of cast or die-stamped metal, and has a bifurcated end laX adapted to engage a pipe or rod, and provided with opposed openings lbx in the bifurcations for the engagement of the fastening gib as hereinafter referred to. The bifurcated construction enables the lever to be directly applied to the tube T, radially thereof, at any point,- whereas the lever shown in Figures 6 and 7 could only be applied to the'tube by slipping it endwise thereover. For sonie constructions and purposes the bifurcated bend levers, as in Figures 3 to 5, and 8 and 9, would be preferable; for other purposes the nonbifurcated bend levers such `as shown in Figures 6 and 7 would be preferable, the latter being stronger.

Any one of such levers when applied to the tube and mo-ved to the desired position can be firmly secured thereto by means of a clamp or gib 2 which is inserted between the inner wall of the bend of the lever and the tube as shown in the drawings.

The gib 2 is preferably formed of drawn rod metal of a diameter equal to the distance between the bodyl l and leg ll of the lever, said gib 2 being adapted to be entered in the bend of the lever and between it and tube T when the latter is engaged with the openings lb. One end of gib 2 is preferably reduced as at 2, and threaded for engagement of a nut 2". The body ofv gib 2 is formed wit-h portion 2c extending inward from the threaded end 2a toward the opposite end of the gib and a tube clamping portion 2d. The portion 2c should be of such depth as to permit the key to be inserted in the lever between the bend and the adjacent wall of the tube T, the clamping portion 2c being disposed adjacent the tube T.

The clamping portion 2d of the gib is adapted to engage the tube T when the gib is inserted in place as shown in Figs. 3 to 9.

,The threaded portion 2@- of key 2 extends beyond the lever and carries nut 2". And when the nut 2b is tightened the gib 2 will be drawn through the bend of the lever and transversely of the tube T until the wedge port-ion 2d of the gib binds against the tube T and eflectually binds the lever to the tube. The gib can be caused to clamp the tube with great force, and will lock the lever to the tube and prevent its displacement thereon either longitudinally or rotatorially.

Preferably. a washer is inserted between nut 2b and the legs l, 1a of the lever such as shown in Figs. l to 7, said washer 3 having a projection 3a extending from its periphery of width preferably equal to the diameterv of the gib 2, the said projection 3' being bent slightly out of the normal plane of washer 3 and adapted to enter between the body 1 and leg l:t beside tube T as shown in the drawings; said projection 3a prevents rotation of the washer 3 and properly spaces the leg la with respect to the main portion l of the lever.

l/Vhen bifurcated levers such as shown in Figs. 3 to 5 are used a spacing sleeve 4 (Figs. 5 and 9) is preferably placed on the gib in the bifurcation of the bend of the lever; said spacing sleeve 4 being so formed so as to permit` engagement of the clamping portion of the gib with the tube T as above described, but will prevent any lateral distortion of the bifurcation of the bend under the pressure exerted by the nut and gib.

Levers and fastenings therefore constructed in accordance with my invention can be quickly applied to or removed from a rod or tube. The locking gib` can be inserted equally well from either side of the lever.v

v The action and the reaction between the gib,

lever, and tube when the gib is tightened will produce only tensile strains in the lever and not bending strains; so that the lever when locked in position will not be deformed byV the action of the locking devices.

VVith'levers as shown in Figs. 6 and 7 the pressure of the gib will not depress or cave-in a thin tube at the spot where the gib contacts with the tube, as the tube neatly fits in the holes 1b, and wheny the gib is tighten-ed the pressure which would tend to distort the thin tube is uniformly resisted by the circular holes in the lever.

I claim Y l. A lever having a recess'in Ione end for engagement with a rod or tube; and opposed openings at opposite sides of this recess; a gib adapted to be entered between the openings and the rod or tube; a washer in one end of the gib having a projection adapted to engage the recess, and means to cause the gib to clamp the lever on the shaft.

2. A lever comprising a U-shaped body havingopposed openings in its legs for engagement with al rod or tube, and having a slot connecting said openings whereby the lever may be engaged and disengaged radially of the rod or tube; and a locking gib adapted t0 be entered transversely of the openings between the bend of the lever and the rod or tube and engage the bend at opposite sides of said slot.

3. In combination with a lever as set forth in claim 2, a washer on the ib having a projecting portion extending etween the legs of the body.

4. In combination with a lever as set forth in claim 2, a spacer on said gib extending between the walls of the slot.

5. VA lever comprising a U-shaped body having opposed openings in its legs adjacent the bend for engagement with a rod or tube, and having a slot extending inwardly from the bend connecting said openings whereby the lever may be engaged and disengaged radially of the rod or tube; a locking gib adapted to be entered transversely of the slot between the bend of the lever and the rod or tube and a spacer on said gib extending between the walls of the slot 6. In combination with a lever as set forth in claim 5, aV washer on the gib having a projecting portion extending between the legs vof the body.

7 In combination with a lever as set forth in claim 5, a spacer on said gib extending between the walls of the slot.

8. A lever Comprising a U-shaped body having opposed openings in its legs for engagement with a rod or tube, and having a slot extending inwardly from the bend connecting said openings whereby the lever may be engaged and disengaged radially of the rod or tube; a locking gib adapted to be entered between the bend of the lever and the rod or tube; a washer on the gib having a projecting portion extending between the legs of the body; and a spacer on said gib extending between the walls of the slot.

In testimony that I claim the foregoing as my own I affix iny signature.

FRANKLIN F. CHANDLER.