US766577A - Wrench. - Google Patents

Description

PATENTED AUG. 2, 1904.

E. K. ANSORGB.

WRENCH.

APPLICATION FILED NOV. 2, 19.02

3 SHEETS-SHEET 1.

X0 MODEL.

IN VE N 70/"? age/l8 fuflnsazye PATENTED AUG. 2, 1904.

E. K. ANSORGE.

WRENCH.

APPLICATION FILED HOV.2,1903.

3 SHEETS-SHEET 2.

NO MODEL Wm M w wi //v VEN 70/? j fzzyene J6, %2Ls"0fge A 7TOHNE rs No 766,577. PATENTED AUG. 2, 1904. B. K. ANSORGE.

WRENCH.

APYLIOATION FILED NOV.2,1903.

no MODEL. 3 SHEETS-SHEET a.

INVENTOH Zayeize .flfiwaz-ye UNITED STATES Patented August 2, 1904.

PATENT FFICE.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 766,577, dated August 2, 1904.

Application filed November 2,1903. Serial No. 179,438- (No model.)

To (all whmn it nuty concern:

Be it known that I, EUGENE K. ANsoRen, a citizen of the United States, and a resident of Greenbay, in the county of Brown and State of \Yisconsin, have invented a new and Improved WVrench, of which the following is a full, clear, and exact description.

This invention relates to a wrench of that class in which the nut-socket is in the form of a ratchet and the body of the wrench carries a dog coacting with the ratchet, so that a stepby-step movement in one direction may be given to the nut through an oscillating movement of the wrench-handle.

The invention resides particularly in the novel form of the dog.

The invention also resides in certain details of structure and arrangement of parts, all of which will be fully set forth hereinafter.

This specification is an exact description of several forms of my invention, while the claims define the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a plan view of the invention. Fig. 2 is a longitudinal section thereof. Fig. 3 is a cross-section on the line 3 3 of Fig. 2. Fig. 4c is a vertical section taken longitudinally of the shank and illustrating the ratchetsocket and dog. Fig. 5 is a detail perspective view of the finger-piece for preventing idle movement of the ratchet. Fig. 6 is a vertical sectional view showinga modified form of the nut-socket. Figs. 7, 8, and 9 are detail views of a modification in the manner of mounting the dog. Fig. 10 is an end view of one of the liners for changing the size of the nut-socket. Fig. 11 is a longitudinal section of the same. Fig. 12 is a view showing diiferent sizes of spacers. Fig. 13 is a plan view of a modification with parts broken away. Fig. 14 is a section on the line 14 14: of Fig. 13. Fig. 15

is a section on the line 15 15 of Fig. 13; and Fig. 16 is a detail perspective view of the pushblock employed in Figs. 13, 14:, and 15.

As illustrated best in Figs. 2, T, 8, and 9, the nut-socket 15 has a ratcheted periphery and coacts with a dog 16 in the form of a block provided with a plurality of ratchet-like teeth. Said dog may be varied in shape considerably Without departing from the essential form of my invention, which lies in the dog-formed of a plurality of spaced ratchet-teeth arranged to engage the ratcheted periphery of the nutsocket and mounted to move toward and from the axis or center of the nut-socket. Said dog is mounted in the shank 17 of the wrench and, as shown, Figs. 7, 8, and 9, is pressed yieldingly into operative position by an expanding-spring 18. The dog as shown in Fig. 7 is without a stem, in Fig. 8 it is formed with a stem or shank 16, and in Fig. 9 the dog is without a stem, but is arranged in a diagonally-extending cavity in the shank 17 of the wrench. lVith this arrangement the nut may be engaged with the interior walls of the nutsocket and by giving the shank of the wrench an oscillatory movement a step-by-step movement will be imparted to the wrench, thus screwing or unscrewing the nut, as desired.

The nut-socket or ratchet 15 is held to turn freely in the body 19 of the wrench, said body having a suitable cover-plate 20 and being open at the bottom and top, so as to expose the ratchet or nut-socket, and said ratchet having a reduced extension 15 turning in the body 19. The cover 20 lies over the peripheral portion of the ratchet 15, as shown best in Fig. a.

21 indicates a finger-piece in the form of a yoke capable of straddling the nut, (see Figs. 1 and 5), this yoke being removably engaged with orifices 15 in the ratchet and serving to permit holding the ratchet against idle movement upon the return movement of the handle or shank of the wrench. By this device when the shank is moved back to recover position of the dog on the ratchet the ratchet may be held against rotation, and thus the liability of merely moving the nut back and forth is avoided. The orifice in the nut-socket piece or ratchet 15 for the reception of the nut may be made of any form desired-square, hexagonal, or octagonal. It is here shown as square. I prefer to make this orifice sufliciently large to receive a nut of maximum size or other object to be turned and to adapt the nut to small sizes by means of the liners shown in Figs. and 11 and the spacers 2 1' shown in Fig.12. The said liners consist of tube-like members 22, the interior diameters of which are equal to the size of the nuts to which they are adapted, and the said liners are held removably yet securely in place by means of springs 23, attached to the liners and adapted to engage the inner walls of the nut-socket. The spacers shown in Fig. 12 may be used in place of the liners above described, and these spacers comprise body portions 24 in the form of plates adapted to lie in the nut-socket of the ratchet. Said body-plates are provided with lugs 25 at their ends which engage the side faces of the ratchet 15 to hold the spacers in position.

In Fig. 2 the dog 16 has a stem 26 attached thereto, this stem running through a suitable passage formed longitudinally in the shank or handle 17 of the wrench and extending to a cavity 17 in the free portion of the handle. This cavity is closed removably by a suitable cover-plate 27, and over the end of the handle and cover-plate a cap 28 is fitted and held by a screw 29. For convenience in forming the passage in the shank 17 which receives the stem 26 of the dog 16, I locate the screw 29 at one side of the center of the shank, as shown in Fig. 3, and the stem 26 may then be inserted longitudinally through the rear end of the shank 17 forward until it reaches the dog 16, with which dog the said stem may be engaged by screwing it into the dog or in any other desired manner.

30 indicates a spring for pressing on the stem 26 to hold the dog 16 in inactive position, and said dog is thrown into active position by means of an elbow-lever 31, fulcrumecl in the cavity 17 and operated by handpiece 32, which is mounted at 33 to swing toward and from the center of the shank or handle 17, the free or rear end of the handpiece havinga projection 34:, the movement of which is limited by the cap 28, before described. In operating this form of the invention therefore it is only necessary to grasp the handle or shank 17, and when the dog is to engage the ratchet the handpiece 32 should be pressed inward, then the handle should be moved to impart the desired movement to the nut. When the handle is to be moved back, the handpiece 32 should be released, whereupon the spring 30 will disengage the dog, and the shank and dog may then be moved back around the ratchet to recover the engagement of the dog with the ratchet, whereupon the above-described operation should be repeated.

Fig. 6 illustrates a modification of the invention in which the ratchet or nut-socket piece 15 is formed with flanges 35, extending above and below the ratchet, said flanges serving to engage the nut or other member to be turned and enabling the nut to be operated,

notwithstanding that some obstruction may lie at the side thereof, which obstruction would render the use of the device shown in Fig. 2 inconvenient or impossible.

If desired, the devices shown in Fig. 2 for operating the pawl 16 may be replaced by those shown in Figs. 13 to 16. The devices shown in this latter figure are preferable, since they are cheaper to construct and are probably more durable in operation. Instead of providing a swinging finger-piece I employ a push-block 40. (Illustrated best in Fig. 16.) Said block is fitted in a transverse cavity formed in the handle of the wrench at the outer end thereof and has transverse movement in said cavity limited by an internal stud 11, which works in a cavity 42, formed in one side of the push-block, as shown. The other side of the push-block has a cavity 43 formed therein, and at the other end of said cavity is a rounding shoulder 44, which engages an elbow-lever 45, mounted within the handle of the wrench, as shown in Fig. 13. This elbow-lever is essentially the same as the elbow-lever 31, before described, and coacts with the stem of the dog, as will be understood from the previous description. The push-block is operated by the pressure of the hand the same as the before-described handpiece 32.

The handle of the wrench may be formed with the removable cover-piece 27 before described, or, if desired, it may be cast integral and cored or bored to produce the necessary cavity in the handle.

Various changes in the form, proportions, and minor details of my invention may be resorted to at will without departing from the spirit and scope thereof. Hence I consider myself entitled to all such variations as may lie within the scope of my claims.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A ratchet-wrench, comprising a body, a shank, a ratchet mounted in the body, a dog coacting with the ratchet, a stem connected to the dog, and movable longitudinally in the shank, a spring pressing the stem in one direction,- and a manually-operated device for moving the stem in the opposite direction, said device comprising an elbow lever engaged with the stem and a handpiece movably mounted on the shank and engaged with the elbow-lever.

2. A ratchet-wrench, comprising a body and shank, a ratchet arranged to turn therein, a dog coacting with the ratchet, an elbow-lever carried by the shank, connections between the elbow-lever and dog, and a transverselymovable push-block carried by the shank and coacting with the elbow-lever.

3. A ratchet-wrench, comprising a body and shank, a ratchet arranged to turn therein, a dog coacting with the ratchet, an elbow-lever carried by the shank, connections between the elbow-lever and dog, a transversely-movable push-block carried by the shank and co acting with the elbow-lever, said push-block having a cavity therein, and a rounding projection in the cavity to engage the push-block.

at. A ratchet-wrench, comprisinga body and shank, a ratchet arranged to turn therein, a dog coacting with the ratchet, an elbow-lever carried by the shank, connections between the elbow-lever and (log, a transversely-movable push-block carried by the shank and coacting with the elbow-lever, said push-block having a cavity therein, and a stem having a projection lying loosely in the cavity, to limit the movement of the push-block.

A ratchet-wrench, comprising a body, a ratchet-wrench therein, means for operating the ratchet, and a spacer composed of a plate having flanges at its ends, the plate being capable of fitting within the socket in the ratchet and the flanges engaging the side faces of the ratchet, whereby to my the area of the said socket. g

6. A ratchet-wrench, comprisinga body, a ratchet mounted therein, a dogcoacting with the ratchet, means for yieldingly pressing the dog into inactive position, and a manuallyoperated means for moving the dog into active position.

7. A ratchet-wrench, comprising a body, a ratchet and dog carried thereby, and a yoke engaged with the ratchet and capable of straddling the nut, for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EUGENE K. ANSORGE.

Witnesses:

NV. P. WVAGNER, CLARA T. ANsoRen.

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