US1429386A - Wrench - Google Patents

Description

H. w. WATSON.

WRENCH. APPLICATION FILED JUNE 24, 1921.

Patented Sept. 19,1922.

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A TTOR/I/EYS H. W. WATSON.

Y WRENCH.

' APPLICATION FILED JUNE 24, 192]. 1,429,3 6, Patented Sept. 19,1922.

' NIH! WIN/E8858 4 INVENTOH v v 4170mm Patented Sept. 19, 1922.

UNITED STATES HARRY W. WATSON, 0F MEMPHIS, TENNESSEE.

WR NCH.

Application filed June 24, 1921. 'Serial. No. {180,054.

To all whom it may concern:

Be it known that I, HARRY-WV. WA'rsoN, a citizen of the United States, and resident of Memphis, in the county of Shelby and State of Tennessee, have invented certain new and useful Improvements in Wrenches, of which the followingis a specification.

My invention relates to improvements in wrenches and more particularly to that type of wrenches in which different sized sockets or spanners are used for. various sized nuts, and is designed asan improvement on the wrench for which Ijwas granted a patent Feb. 10, 1920, Number 1,330,151.

One object of the present invention is to provide a wrench structure andassembly by which nuts may be quicklyrunup or down on a bolt and then tightlyflocked in place.

Another object is to provide a Wrench assembly that may be used with many different sizes of nuts. Another object is to provide a wrench that is quickly reversible and one that does away with crank extensions inmanipulating same.

With these and further objects in View my invention consists in certain novel features of construction, arrangement and combination of parts as will be hereinafter. fully described and pointed out in the claims, reference being had to the accompanying drawings in which Figure 1 is a'perspective view showing my improvements as in use. v

Figure 2 is a bottom plan view of the socket head. v

Figure 8 is an inside plan view of the bottom or retaining collar.

Figure 4 is a top plan view of a collet used.

. Figure 5 is a side elevation, partly in section of the complete wrench.

Figure 6 is a longitud'nal-section of the same.

Figure 7 is a top plan of the ratchet dog.

Figure 8 is a vertical section of the lower collar.

Referring-more specifically to. the drawing A represents the wrench head or casing which is made of steel or other suitable material, and B a leverhan'dle portion such handle being preferably integral Y with head A.

The lower portionof the head-is cored out to providea' lower chamber. and has a reduced circular opening Gthrough itsupper wall forming an annular shoulder D therein against which the socket E is designed to fit.

The lower end of the head is exteriorly reduced as at F and on the reduced portion at diametrically opposite points are placed the outwardly projecting bayonet-jointglock pins or studs G. An angular collar or face plate H having a circular opening I eccen= trically disposed is to be held on the reduced lowerend of the head or casing, suchv collar having a turning fit thereon and held in place by the pins which engage in the T or bayonet slots J in upstanding flange K of the collar; this collar also has secured to the inner face of said flange K the pawl controlling spring L, said spring being secured at one end to the collar and having a curved or offsetmportion Z designed to bear against a pawl l said pawl'having at its opposite ends the oppositely projecting noses mm;

the pawl is further provided with a pin m projecting from its upper face which pin pivotally fits into the head or casing,v as shown inFig G.

A collet N is seated on the collar H and. held in place withinthe head'by said collar, the collet having a central opening N the shape and approximately-the size of the nut to be operated on. Theouter side wall of the collet is provided with' rectangular grooves or notches N to receive the ends of the dogs; while the upper face of the collet is-provided with ribs N arrangedin pairs at right angles to each other. This collet together with the turning, member E constitutes the socket, said turning member consisting of a shouldered lower portion to fit within the annular shoulder D of the casing, an opening in its lower end cor responding in shape with the opening of the collet, and a reduced extension collar or neck E Which extends through the circular opening throughthe upper wall of the head; the lower face of this turning member is interlockedwiththe upper face of the collet by the pairs of: grooves emgaging the ribs N on the collet.

The extension collar or neck has a central open portion and itsouter end is provided with a bore E? designed to fit a nut of a certain size. The wall of the central portion of the turning-member is provided with a circular series of transverseopenings E the purpose of which will be-presently explained. r

As in my prior patent the. lever handle B is made integral with the head but in my present improvement this handle is widened and thickened at its free end B and the upper face is provided with an inclined groove 13 in which one member of the attached brace is to rest. This brace comprises two hollow sections 0 and P, one of which 0 carries at one end a spanner ring or head 0 and longitudinally within the same a slidable plunger bolt 0 having a stud 0 at one end which is designed to be projected through the spanner ring 0 into one of the openings E through the side wall of the turning member E; the other end of'the bolt has a lateral lug 0 which projects through an eccentric curved slot P in the flattened inner end P of the other section of the brace, this end of the outer section being connected with the section 0 by means of a bolt or rivet P which extends through such end and through openings in the forked or bifurcated end of the end of the outer section when it is not being used as a brace in the inclined groove. The spanner ring 0 rests and is held against the wrench head or casing by the laterally extending studs projecting outwardly from the turning member or socket.

The various instrumentalities wrench are assembled in the following manner, assuming that they have already been separately manufactured: The collet having the desired central opening is placed on the collar H in proper relative position; the cap socket or turning member E is then superposed on the collet, the ribs and grooves interlocking; the head or casing A having had the dog lfl inserted into place is now connected with the three parts just assembled by passing the turning member upwardly through the central opening in the head the studs or pins G entering the stem portion of the "5' slot J, and through to the angular portion of the slot; the lower collar H is then turned which will bring the said studs or pins G into one end of the horr zontal branch of the bayonet slot.

The brace attachment is then applied by passing the spanner ring 0 over the turning member E and moving downwardly until it rests on head or casing A, the studs 0 are then driven into the turning member and retain the spanner ring 0 against axial movement. It will of course be understood that the sections 0 and P of the brace have also been assembled andconnected with the bolt 0 in place with its lateral lug 0 within the eccentric slot P and the joint or pivot pin P fixed in .place.

The wrench is now ready for use and the socket opening used to engage the nut is adapted to slight variations in size of nuts. For instance, one socket will operatively lit a one-inch, a three quarter inch, and seveneighths nut, and each collet used will thus allow for three sizes of nuts.

of the In my former patent a detached crank or brace was used to run up a nut on a bolt, but the present invention has the brace or crank handle attached at all times after the device has been once assembled.

To use my improved wrench, thecollet which is interlocked with the turning memher, is engaged over the nut, and the section handle bent at the joint to the position shown in Figure 1 which makes the brace virtually a crank; holding the rigid handle B in one hand the brace or crank is turned rapidly running the nut down on the thread until the object from which the bolt projects, is reached; then the rigid handle is swung around to tighten the nut against the object. To remove a nut these operations are reversed.

It will be understood from an inspection of Figure 6 that when the sectional brace is bent to the form shown in Figure 1 that the bolt pin 0 is projected into the opening E in turning member E thus locking these parts together. This wrench is a ratchet wrench, is reversible and is so constructed as to meet many requirements, and does away with many crank extensions, braces and tie sockets.

The wrench can be reversed by merely moving collar H so that the G will seat in I the opposite end of the long slot J this movement of collar H will cause the curved spring to bear against the dog M on the opposite side of its pivot and thus withdraws the nose formerly engaging a notch N and cause the nose on the other end of the dog to engage a notch i In using the turning member or extension socket it is unnecessary to turn the wrench over to or to remove the extension socket to get reverse action. To tighten in putting on or taking off a nut, if the nut be tight use handle of wrench to start action then use the brace.

I claim 1. A wrench comprising a stationary ratchet head and a lever handle rigidly connected thereto, a rotatable extension socket member within said head said socket provided with transverse bolt sockets, a spanner surrounding said extension socket, a hollow arm projecting laterally from said spanner ring, the bore ofsaid "arm adapted to be brought into register with the said bolt sockets, a slidable bolt in said hollow arm adapted to engage one of said bolt sockets and couple the extension socket member with the said spanner ring, and an extension arm having pivotal connection with the other end of the hollow arm and the bolt therein, whereby said bolt may be projected into and retracted from the bolt sockets by the swinging of the 'extension arm angularly on its pivotal connection with the hollow arm section.

sion socket member by the swinging of outer arm section angularly on the pivotal connection with the first named section.

3. A wrench comprising a rigid lever handle and a stationary head, said head having a cored-out chamber in its lower end and a circular opening through its upper end, a rotary extension socket member rotatably mounted in said chamber a removable collar engaging the lower end of said head and supporting the said extension socket member therein, and a transversely jointed and longitudinally extensible sectional brace detachably engaging the extension socket member whereby the said extension socket member may be rotated independently of the head and the supporting collar. j

4. A wrench comprising a rigid head and handle extending laterally therefrom, the lower end of said head having a cored out chamber and a reversible ratchet dog movably mounted on its lower end, and laterally projecting bayonet lock pins, an annular collar cap at the lower end of said chamber said cap having diametrically opposite inverted T-slots to receive said lock pins, a peripherally notched collet having a nut socket and supported on said collareap, the aforesaid ratchet dog adapted to engage said notches and controlled by spring means carried by the collar cap, an extension socket mounted on said collet and in interlocked relation therewith, said extension socket provided with transverse boltsockets above the head through which it extends, a spanner ring surrounding said extension socket and connected with said extension.

provided with a hollow lateral arm the bore:

of said arm adapted to be brought into register with the said bolt sockets, a slidable bolt in said hollow arm adapted to engage one of said bolt sockets and couple the extension socket with the said spanner ring, and an extension arm having pivotal connection with the other end of said hollow arm and the bolt, whereby the said bolt may be projected into and retracted from the bolt sockets by the swinging of the extension arm angularly on its pivotal connection with hollow arm section.

5. A wrench comprising a rigid head member and an integral handle extending laterally therefrom, an extension chuck or socket member rotably mounted within said head member, said extension chuck or socket having a notched periphery, a reversib-le acting ratchet dog mounted on the lower end of the head member and adapted to engage the notched periphery of the chuck, a removable cap collar mounted on the lower end of said head toretain said chuck in the head, a plate spring mounted within said cap collar and normally engaging said dog at one side of its axis, said cap collar so connected with said head member as to permit alternate rotary movement thereof whereby the said plate spring contacting V with the dog will cause reverse movement of the ratchet. p

6. A wrench comprising a stationary ratchet head and a lever handle rigidly connected thereto and extending laterally therefrom, a rotatable extension socket member within said head provided with bolt sockets, a sectional brace detachably engaging said socket member, said brace including a spanner ring surrounding said socket member and provided with a hollow lateral arm, a slidable bolt in said hollow arm adapted to engage said bolt sockets, and an extension arm having pivotal connection with the other end of said bolt, whereby the bolt may be projected into and retracted from the bolt sockets by swinging the extension arm angularly.

HARRY w. WATSON.

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