US912752A - Tool. - Google Patents

Description

M. H'. STEVENS. T001.. APPLIQATION FILED ooTjls, 1908.

91 2,752. Patented' Feb. 16, 1909.A

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MILTON H. STEVENS, OF KANSAS CITY, KANSAS, ASSIGNOR OF ONE-HALF TO MARY T. RIDGE- LEY, OF KANSAS CITY, KANSAS.

TOOL.

To all whom it may concern:

Be it known that I, MILTON H. STEVENS, a citizen ofthe United States, residing at Kansas City, in the county of Wyandotte and State of Kansas, have invented new and useful Improvements in Tools, of which the following is a specification.

This invention relates to combined Wrenches and pipe threaders, and has for one of its objects to provide a tool of this character which is extremely simple and inexpensive to manufacture, and so designed as to be readily manipulated and to enable pipes to be threaded or nuts to be applied or removed with despatch.

Another obj ect of the invention is the provision of a tool provided with sets of ratchet wheels in the form of thread-cutting dies or nut-engaging elements, in connection with a simple and convenient means for holding any wheel removably in the head of the tool.

With these objects in view and others, as will appear as the description proceeds, the invention comprises the various novel features of construction and arrangement of parte which will be more fully described ereinafter and set forth with particularity in the claims appended hereto.

In the accompanying drawing, which illustrates one embodiment of the invention, Figure 1 is a plan view of the tool with the cover plate removed. Fig. 2 is a side view of the `tool partly broken away. Fig. 3is an under plan view of the cover plate. Fig. 4 is a pers ective view of the s ring and pawlholding lock. Fig. 5 is a p an view of one of the thread-cutting dies.

Similar reference characters are employed to designate corresponding parts throughout the views.

Referring to the drawing, 1 designates the handle of the tool which is a continuation of the shank 2, and formed on the shank is an annular head 3 that has an internal annular flange 4 that constitutes a shoulder on which the ratchet wheel 5 bears. This ratchet wheel is provided with teeth 6 with which engages a spring-pressed pawl 7 that is disposed in a channel or guideway 8 eX- tending longitudinally in the shank 2 of the tool. The pawl has a stem 9 on which is a helical extension spring 10, which spring is connected with the stem at 11. The opposite end 12 of the spring engages an abutment or holder 13 which extends trans- Specicaton of Letters Patent.

Application led October 15, 1908.

Patented Feb. 16, 1909.

Serial No. l157 ,909.

versely to the channel 8 and sets into recesses 14 in the closed walls of the channel. This holder is in the form of a block which has a central recess 15a in its bottom, as shown in Fig. 4, to span the stem 9 and spring 10, the end 12 of the spring being bent outwardly to engage in front of the abutment 13. The spring 10 permits the pawl 7 to yield inwardly as the ratchet wheel 5 turns. -On the side of the shank having the channel 8 is a cover plate 15 that is removably secured to the shank by thumb screws 16 that enter the openings 17 in the cover and shank, and this cover plate is bifurcated at one end to provide arms 18 that extend partially over the ratchet wheel 5 to form retainers for the latter whereby the wheel can turn in the head 3 without lateral displacement. The under face of the cover plate 15 has a transverse recess 19 which receives the portion of the member 13 that projects out of the shank 2. I/Vith the tool, a plurality of ratchet wheels are provided, some of which have square or other openings 20 of diiierent sizes to it different nuts and some wheels are formed into dies having thread-cutting teeth 21, as shown in Fig. 5. In order to substitute one ratchet wheel for another, it is merely necessary to loosen the cover plate by taking out the screw 16 so as to move the arms 18 out of the way. I/Vith a tool of this character, a nut can be ap lied or removed, or a pipe threaded by a ack and forth movement of the tool, thus connecting the latter very serviceably where the space around the work is limited. To prevent the ratchet wheel from turning when removing the die from a pipe after being threaded, a clamping screw 22 is arranged in one of the arms 18 to engage in any one of the depressions 23 in the side face of the die-carrying ratchet wheel, as shown in Fig. 5. The screw 22 is threaded in an opening 211, Fig. 3, and by turning the screw to cause the inner end thereof to enter one of the depressions 23, the die-carrying ratchet wheel can be unscrewed from the threaded pipe by the turning of the tool.

From the foregoing description, taken in connection with the accompanying drawing, the advantages of the construction and of the method of operation will be readily apparent to those sfiilled in the art to which the invention appertains, and while I have described the principle of operation .of .the i invention, together Withthe .device whichy I now consider to be the best embodiment thereof, l desire to have it understood that the device shown is rnerelj)T illustrative, and that such changes may be made When desired as are within -thescope of the claims appended hereto.

Having thus described theinvention, What I claim is vl. Atool of the class descrihedcomprising a'handle, a shank thereon, :anfannular head on the shank, a ratchet Wheelin the head, a paWl/'arrangedlin the shank to engage the ratchet Wheel, a spring for holding the paWl yieldingly in. engagement Vwith the Wheel, a cover plate `removably disposed over the ratchetto-hold the same in place, arms 'on the-cover plate extending overthe ratchet Wheel fori holding the latter inl the' head,l and a linger screw on one of the arms arrangedto engage? the WheelV in the-head to-prevent relative turning ofthe Wheel.

YY2me ytool comprising a handle having a Vlongitudinal channel, a -chainhered head `communicating with the channel, a ratchet' wheelin the head, a pawl disposed in the channel and engaging the ratchet Wheel, a

stem on the paWl disposed in the channel, a spring on and secured to the stem,a block extending across the channel and'havingits ends set into'recesses in the opposite Walls of the latter, said block being recessed to span 'the stem, means for engaging the opposite .end ofthe spring with the block, a ycover plate: secured` over. the channel for retaining the block andpawl therein, said cover .plate beingarranged tohold `the ratchet Wheelin thehead, and means forremovably/secu-ring vthe cover plate in position.y

In testimony whereof I aiiixmy signature 4in presence oftWo Witnesses.

.MlLTON H. STEVENS. Witnesses :GRACE WILSON, GEORGE zMoGnnw.

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