US1902881A - Valve bending tool - Google Patents

Description

March 285 1933.` 4 Q A. MORGAN 1,902,881.l

VALVE BENDING Toor.

Filed Sept. 1o:t 1950 INVENTOR By A lorneys,

Patented Mar. 28, 1933 UNITED STATES- GERRY MORGAN, O-F GARDEN ITY, NEW-YORK, ASSGi-NOR 'lVO A. SCHRADERS SON,

INCORPORATED, OF BRGOKLYN, NEW YORK, A CORPORATION `OFr YORK-1 VALVE BENDING Toon Appiioation mod september 1o, 1930. soriai No.,4so,s5s.

The present linvention relates `to valve stem bending tools and aims to provide'certain improvements therein. y It is well known that certain vehicle wheels and certain types of tire rims require the-tire mounted thereon to have a special bend or angle valve stem in order that the tire `may be conveniently iniiated,deflated and gauged. Itis also well known that it is impracticable for tire dealers and service stations to carry complete lines of 4tires with such bentv stems, hence the difliculty and inconvenience vfrequently experienced` by motorists in obtaining `quick replacement of inner tubes having rbent valve stems. is` particularly true with respect, to inner tubes, the valve stems lof which have a double bend. o.

Tol overcome this difficulty and ineen venience itV has been proposed that the tire manufacturer equip' the inner tube with a short valve stem or spud and that the dealers and service stations carry in stock a supply of vextensions-straight and'bentfor cooperation withsaid spuds, whereby any desired size of tube. can be supplied with any desired length and shape of valve stem. It has also been proposed that the tire manufacturers equip, 4the inner tubes with straight stems Vand that dealers and service stations 'be supplied with tools for bending thesestems to desired shapes. The tools heretofore proposed for bending valve stems with which I am familiar, are not capable of imparting Aa double Abend to a valve stem, nor are they ofsuch construc-V tion` as would lend themselves to modifications for accomplishing this end. -This is particularly so because of the necessity of providing,in addition to a bend of definite angle,1anofi`set portion'which `will haveA a different ,length from the first bend forl dif- -f ferent rims,V e .1

- Accordingto the present invention I` provide a valve bending tool which isV adapted jfor forming thesecond bend in avalve stem. l referably, however, the tool is intended for use on vaivel stems which already have-a substantially right-anglebend in proximity to the tube-engaging. end of thev stem, said' This 'l ltool when viewedv from the leftof Fig. 1.

tool having adjustable for governing "i" Vboth the length of theoifset portionv and the angle of thesecond bend.' .The invenltion, also contemplates otherA features of novoitygwhioh wiubo understood from tho-jdo- ,55 tailed description which follows. y

' In, the accompanying draw'ingpl' have ili lustrated a preferred embodiment of my invention, wherein Figure'l; is an elevation of avalve bend:- 60,7

ing tool `according to the Vpreisent invention showing theA manner ofv its operation Vupon tion being shown4 inise'ctio-n.

a valve stem, certain partsfofthe'construc- Fig. 2 is a fractional side elevation'of `the, (e5 'i lconnected together in proximity to their ad- -jacent ends through the medium of arivet 12, said rivet having a shoulder `12a bear-80 ing against one Pface' of the ymember 10 whereby to provide a guide' for insuring rela. tive movement of the members in a definite plane.

` The memberiOi near itsv pivotedend` is'. $5 provided with. parallel sides 10a andi 10b' `and slidably mounted over the top'faceof ysaid member is a block 13, the inner face of which is .fgrooved, as shownl at 13', to engage the .sides lONand 10b. Thebloclgg 132-190 is formed' with a longitudinal slot` 13a there?V in throu'gh'whichy extends aheaded bolt 14 having itoshonk .boiowits hood pfovidod j with y'opposite ilat `faces 140i` which `hold the lbolt` against `rotation AVWithin said, slot.` p 95. The boltl 14 passes through a-:holelin'the i member v10 and screwfthreadedly carries'ia 'i t knurled clamping nut 15, the inner face ofV which `is adapted to. engage" thefyflat facefof the `member 10 'opposite` to.l that upon which "100 the slide 13 is movable. To prevent loss or separation of the knurled nut 15 from the threaded end of the bolt 14, said end is upset or enlarged, asshown at 146. Tightening of the knurled nut 15 upon the bolt 14 will clamp the slide block 13 against movement on the member 10. VThe elongated slot 13m in the slide block will limit the extent of the vmovement or adjustment ofthe slide block with respect to the member 10. The

' slide block 13 is also provided with an openthe openin ing 13b extending longitudinally Vtherethrough and parallel to the slot13a. At the Y top of the block 13 at one side of the opening 13b is a projection'13chaving in its top a grooved, curved surface 13d leadingV from 13b, the cross-sectionV of said curved sur ace being Vsubstantially semi-circular in form. The opening13b isadapted to accommodate the inflating end of a valve stem which-is to be bent, and the surface 135K yis adapted'to function asfthe bending surface ortemplate over which said stem is to be bent, as will be presently. made apparent.

, The member 11 at it pivoted end is formed with an offset portion 110: and is provided with a cylindrical lug 15 rwhich projects inwardly over themember' 10, as best shown in Fig. 2. The lug 15 isprovided with an annular groove 15a of arcuate cross-section which is complementary to thegroovey 13d,

and the middle portions thereof lie in the Y same plane.

Y For setting the rider yat vpredetermined points along the memberk 11 the latter is prol VSlidably mounted upon the member 11 and adapted for adjustment at various positions thereon is a rider 16. This rider,"as shown, is in the form ofk a block havingv a vrrectangular opening 16a `through e which *the member 11` passes, the lower wall of said opening being traversed at its middle point `by a pin 166. The lower end ofthe block is curved, as indicated at 160, and the top of 'said block is provided with a central screwthreaded opening in which is threaded a thumbscrew 160? having a knurled 'head 16e.

vided at its edge adjacent to the member 10 with spaced recesses vor detents 11b in which thevpin 160 is adapted to engage, and

When'in such engagement can be locked -upon themember 11 by turningthethumb- Y Y rider along the member 11 the inner end 160* j y n v,screw 16d into engagementwiththe opposite 55f edge ofthe member '11.1, For facilitating fj such setting of the rider `upon the member- 11, the latterhas alphabetical indicia above each-,olf thedetents 11b, and the rider is pr'oi f vided witha sight" opening 16f through lwhichsaid indicia are visible.- ItwillV be app'arentfthatl atv different settings Vof the thereof will engagejthe edge 10,5101: the-mem- 'ber 10fat'diiferent points in its lengthand thus limit tov varying'degrees the extent to which said arms 10 and 11 may be brought together. Y l j l v As hereinbefore stated, the slide block 13 is adjustable longitudinally along the member 10, and for indicating such adjustmentV thev member 10 is provided with numericall indicia along one Aedge thereof for cooperation with the lower edge of the slide its operation'is as follows: Assuming# it is desired to impart in anv angular fvalve stem '17 fitted to an innertube 1 8 by the ,usual clamping means, a second bend which forms a definite angle with either the offset portion 17er orthe straight tube-engagl ing portion 17 b'. The slide lblock 13 andthe rider 16 are set to Vdeiinite points o n their respective carryingmembers as vprovided for in a table'which would govern the formation of bends for the particular character of valve stem being operatedlupon. rvThe inlating end of the stem 17 c is then inserted into the opening 13b in the slide block` and the lug 15 vbrought around into engagement ywith the bight 17d of the right-angle bend in the stem.A The members 10A and 11 are then moved together, in the course of which e pressure will kbe applied through the lug 15A upon the stem 17 to bend the same around the surface'13d, and said bending operation is continued until the end 16aiv ofthe Yrider contacts with the edge 10bv of the memberlO, as illustrated in dot and dash lines in Fig.

A1. The complementa] grooves'13cl and'15a will initially guide and maintain the various portionsofthe valve stem in thek same plane V- during the bending operation.

l It will be appreciated th the'riderfor a given valve stem the-angle l`'tof be bent will be changed. Said angle willalso be diiferent ifthe initial bend in `,the valve lstem is other thanV a right-angle.

Accordingly, in the operation ofthejpresent.

tool recourse will have to be had to a char-t designating the proper settings for'the slide block and the rider for obtaining' a secondv Y t byr varying V,either adjustment of the slideblock or of.l

bend inithe'valve stem which has a definite voffset and angle;Y

While ll-have shown described a preferredembodiment of vmy invention I do not wish to'be limited to the detailsfof,constru'c-V tion hereindisclosed asv it will be understood that the same may be modifiedjwithout departing .from the spiritv of the invention.

What I claim is:

l. A tire valve bending tool comprising a pair of pivotally connected arms, a slideblock longitudinally adjustable on one of said arms, said slide-block having a socket for receiving the inflatingv end ofv a valve stem and a curved surface over Which said valve stem can be bent, and means on the other of said arms for engaging the, valvek stem to bend it over said curved surface as the pivoted arms are moved relatively to each other. Y

2. A tire valve bending tool comprising a pair of pivotally connected arms, a slideblock on one of said arms having a socket for receiving the inflating end of -a valve stem and a curved surface over Which said Y valve stem can be bent, and the other of said arms having a lug for engaging the-valve stem at a point above the ,curved surface on the slide-block for bending said valve stem over said curved surface as the pivoted arms are moved relatively to each other, said slide-block being' longitudinally adjustable on the first arm to vary the distance between the curved surface on the slide-block and the lug.

3. A bending tool for valve stems already provided with a bend in proximity to the tubeV engaging end thereof, comprising a pair of pivotally connected arms, one of said arms having a lug engagea-ble in the bight of the bend, the other of said arms having means for engaging the stem on the same side as the bight in longitudinally spaced relation to said bight, and means for enpair ofpivotally connected arms, one of said arms having a lug engageable in the A bight of the bend, the otherof said arms having a slidable, adjustable block thereon, said block having a longitudinally extending opening therein for receiving the inflating end of the valve stem anda curved shoulder for engagingthe side of the valve stem opposite to that engageable by the lug, "i

said shoulder serving` as a point around which the stem can be bent when the pivoted arms arel moved toward eac-h other, indicia j for setting the adjustable block on its' sup-k porting arm, adjustable means for varying the extent of movement of the arms Vtoward each other, and indicia for setting'said adjustable means.

6. A bending tool so l for imparting a second v bend in a tire valve stemalready having a f substantially right-angle bend therein proximity to the tube-engaging end thereof, comprising a pair ofl pivotally connected arms, one of said arms having means adjustabc-le longitudinally thereof for governing v c which the second bend isto be made, and the the offset distance from the first bend at other arm having adjustable means for cooperative engagementvvith the iirst arm `for controlling vthe angle to be formed at said second bend.

In Witness whereof, I- have hereunto signed my name. Y x

Y GERRY A. MORGAN.

gaging the diametrically opposite side of the stem intermediate the lug and the other enmeans serving as a shoulder around Which the stem can be bent When the pivoted arms are moved toward each other, said vlast named means being adjustable to vary the cgaging means, said second named engaging distance from the bight in the valve stem at which the second bend therein is to be made.

4. A bending tool for valve stems already provided with a bend in proximity to? the tube-engaging end thereof, comprising a pair of pivotally connected arms, one of said arms having a lug engageable in the vbight of the bend, the other of said arms havingj a slidable, adjustable block thereon, Vsaid lblock` having a longitudinally extending opening therein for receiving `the inflating end of the valve stem and a curved shoulder for engaging the side of the valve stem opposite to that engageable by the lug, said j provided with a bend in proximity to the l tube-engaging end thereof, comprising a,

Y iaof v7 12o V f

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