US1480401A

US1480401A - Crank-pin tool

Info

Publication number: US1480401A
Application number: US582776A
Authority: US
Inventors: George F Krieger
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-08-18
Filing date: 1922-08-18
Publication date: 1924-01-08
Anticipated expiration: 1941-01-08

Description

Jan. 8, 1924. 1,480,401

G. F. KRIEGER CRANK PIN TOOL Filed Aug. 18.. 1922 INVZENTOR. 62 07194 7/5 2709??? A TTORNE Y.

Patented Jan. 8, 1924.

UNITED STATES 1,4 0,401 PATENT orifice,-

enonen r. Karnsnn, or isconsin RAPIDS, VTISCONSIN.

: CRANK-PIN "root.

Application filed August is, 1922.. Serial No, 532,775.

To all whom it may concern:

Be it known that I, GEORGE F. KRIEGER, a

citizen of the United States, residing at crank pins of internal combustion engine shafts, particularly those of motor vehicle engines, and further for refinishing scored and worn crank pins of the crank shafts thereof, and, in the latter instance, in'a manner not requiring the removal of the crank shaftfrom its operative position. in the engine assembly.

A further object of the invention is to provide a tool, of'such class,in a manner as hereinafter set forth, with means for automatically centering a crank pin within the jaws'of the tool simultaneously with the adjustment ofthe cutter-carrying head block to operative position.

Further objects of the invention are to provide a tool of such class, which is simple in its construction and arrangement, adjustable, strong, durable, compact, efficient and convenient in its use, readily set upgin operative position, and comparatively inexpensive. V

With the foregoing and other objects in view, the invention resides in the novel construction, combination "and arrangement of parts, as hereinafter more specifically described, and illustrated in the accompanying drawings, wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to, which come within the scope of the claims hereunto appended.

In the drawings, wherein like reference characters denote corresponding parts throughout the several views Figure 1 is a front'elevation of a crank pin tool in accordance with this invention, 7

Fig. 2 is a side elevation thereof, Fig. 3 is a sectional elevation partly broken away,

Fig. 4 is a section on the line4-4ofFig. 2, Fig. 5 is a section on the line 5-5 of Fig.2,

Referring to the drawings in detail, the tool includes a handle member 10, which terminates in a threaded shank 11, the latter merging into the stem 12, of the fixed jaw of the tool, to be hereinafter referred to.

The stem 12 issquare in cross section, and the shank 11 cylindrical, as well as being peripherally threaded. Mounted on the shank 11, is an adjusting "nut 13, which is employed for adjusting the position of the movable jaw of the-tool, to be hereinafter referred to V I The stationary jaw of- 'the to0l,=includes the stem 12, which is; somewhat elongated, and which merges at its outer end in afor- 6 is a top plan view of the stationary aw.

wardly projecting curved jaw body, and V "which is bifurcated. The forwardly projecting curved jaw body, is indicated at 14, and the furcation, dueto the bifurcation of the jaw body 14, is indicatedby the reference character'lb. The inner face of the curved jaw body 14, in. proximity to the forward end thereof, is provided with a dovetail groove 16, in which is seated, a transversely extending triangular shaped abutment member 17, which is of a length element 18, which is formed of an absorbent fabric and is saturated with a lubricant. A

pin '19 extends through-the aw body 14, at

the forward end thereof, for the purpose of 'detachably securing the lubricating elegreater than the width of thejaw body 14,

ment or member 18, in position. The mem-- ber' 18 projects inwardly from the jaw body 14, soas to come in contact with the work operated on.

mounted on the stem 12 of the stationary jaw,and which is further adjustedbythe 13,so that when the latter is adjusted-length wise of the shank 11, the sleeve 20 can -be moved correspondingly. Theiforward end 100 The adjustable jaw, whi h is slidably of the sleeve terminates in a jaw body coupling member, which is formed with a squared bore 22, and is mounted on the stem 12. 'The coupling member is indicated at- 23, and is of greater thickness than the thickness of the body of the sleeve 20. The member 22 has a port 24, for the purpose of supplying a lubricant to the interior thereof, so that the member 23, as well as the sleeve 20, will freely slide on the stem 12, of the stationary jaw. Projecting forwardly from the member 23, as well as formed integral. therewith, is a neck portion 25, which carries the adjustable jaw body 26. The member 23, neck 25, and jaw body 26, has that portion opposing the jaw body 14, cut away to provide a V-shaped jaw, and the working faces of the latter are indicated at 2?, 28.

At the point of jointure, between the working faces 27, 28, of the adjustable jaw, the jaw body 26 is formed with-a transverse- 1y extending pocket 29, for the reception of a cutter 30. The jaw body 26 below the pocket 29, centrally thereof, is formed with a socket 31, having the wall thereof threaded. Thesocket 31 extends parallel with respect to the stem 12 of the stationary jaw. Disposed at right angles with respect to the pocket 29, is a bore 32, which extends through the rear of the jaw body 26, neck 25, and the forward portion of the member 23, and said bore is in alignment with the port 24. Mounted in the bore 32, isa cylindrical clamping element 33, which abuts against the cutter and clamps the same against the forward wall of the pocket 29. The clamping element or member 33 is secured in clamping position through the medium of a threaded retaining member 34, the latter being disposed at right angles with respect to the member or element 33 and abuts against the rear end of the said member 33. The retaining member '34 has threaded engagement with a pocket 35, which is disposed at right angles with respect to the bore 32. The pocket 35- is formed in the neck 25, and which terminates at its outer end in a recess 36, at one side of the neck 25and which is of a size to receive an operating element 37, for the retaining or securing element or member 34. The rear end of the member or element 33 is tapered as at 38, and which is engaged by thetapered inner end 39 of the element 34. and by this arrangement, when the element 34 is screwed inwardly, the pointed inner end 39 hearing against the pointed inner end 38 of the elementf33, will force the element 33 forwardly, thereb clamping the cutter 30 against the forward wall of the pocket 29.

The clamping of the cutter 30 in the position just referred to, is had subsequent to the adjusting of the cutter 30, to the position desired for operation upon the work.

of an adjusting screw 44, which adjustably I engages with. the threads of the wall of the socket 31, is the base of the member The base of the member 43, is indicated at 45,, and which is provided with an opening 45, for the passage of the screw 44. The flanges 42 are apertured and the walls are threaded so that engagement of the screws 40, 41, with the flanges 42,.will be had. The slits 49 are provided for the purpose ofadjusting the screws 40, 41, when occasion requires. Interposed between the aw body 26, and the base 45, of themember 43, as well as surrounding the screw 44, is a coiled spring50, which is employed for imparting tension, not only to the member 43, but to the ad justing screw 44, so that during the operation of the adjusting of the screw 44, or the member 43, such action will be had against the tension of the spring 50. The head 46 is tapered, and provided with a micrometer scale 47, and further provided with squared portions 48, for engagement by a tool for the purpose of adjusting the head 46, when occasion so requires. The scraper or cutter 30, can be adjusted independently of the member 43, or the screw 44, by the adjusting of the screws 40, 41.;

The working face 28 of the V-shaped jaw of the adjustable jaw body, is provided with a pocket 51, inwhich is mounted an absors bent or lubricant element 52, which consists of a body of absorbent material, saturated with a suitable lubricant, and said element 52 is secured to the jaw body, through the medium of a wire 53, passing through an opening 54, in the jaw body 26, and bent at its outer end, so as to abut against the jaw body 26, under such conditions retaining the element 52 in the socket or recess 51.

The V-shaped jaw of the adjustable jaw body 26, provides for-centering the work,

when it is desired to beoperated on and said I V-shaped jaw, in connection with the abutment 17, when the adjustable jaw has been shifted to its desired point of adjustment, will securely hold the work during the operation thereon, of the cutter or scraper 30. r

By providing the

elements

35, 37, and 33, the cutter or scraper '30, can be securely clamped in position, after being adjusted for operative engagement with the work supported by the V-shaped jaw of the ad justable jaw body 26.

After clamping the work in position, and adjusting the cutter, or scraper .30, the tool is revolved around the work, and the cutter 30, acting on the face of the work will finish or round the work in the manner desired,

and duringthe operation or-rather revolving the tool, the necessary amount of lubricant will be supplied so as to set up a satiswill .be readily apparent that a' crank pin tool'is set upfwhich provides for theaccurate finishing or rounding of the crank pins of engine shafts, as well'as a tool for refinishing scored and worn crank pins, and although the description and drawings set forth the preferred embodiment of the tool,

- yet it is to be understood that the specific terms and details of construction, arrangement and operation and various changes in and modifications of the same can be resorted to without departing from the spirit of the invention.

What I claim is l. A tool for the purpose set'forth comprising an adjustable jaw body provided with a V-shaped jaw, an adjustable cutter positioned at the point of jointure between the working faces of said V-shaped jaw, means arranged exteriorly of said jaw body for adjusting said cutter, means arranged within said jaw body for clamping said cutter in adjusted position, and a lu-- bricating element mounted in one of the working faces of said V-shaped jaw and means carried by said jaw body for securing said lubricating element thereto.

2. A tool for the purpose set forth comprising an adjustable jaw body provided with a V-shaped jaw, a cutter mounted in the jaw body and projecting between the working faces of said jaw, adjustable supporting means exteriorly of therjaw body for adjusting said cutter, and means adjustably connected with the jaw body and connected with said adjustable supporting means for adjusting the cutter independent a of the adjusting of the said adjustablesup porting means. j r

3. A tool for the purpose set'pforth comprising an adjustable jaw body provided with a V-shaped jaw, a cutter mounted in w the jaw body and projecting between the working faces of said jaw, adjustable supporting means exteriorly ofthe jaw body for adjusting said cutter, means adjustably connected with the jaw body and connected with said adjustable suporting means for adjusting the cutter independent of the adjusting of the said adjustable supporting means, and releasable means mounted in said jaw body for clamping said cutter in position.

4. A tool for the purpose set forth comprising an adjustable jaw body provided with a V-shaped jaw, a cutter mounted in the jaw body and projecting between the working faces of said jaw, adjustable supporting'means exteriorly' of the jaw "body for adjusting said cutter, means adjustably connected with thejaw body and connected with saidzadjiustable supporting means for adjusting the cutter independent of the ad justing of the said adjustable supporting means, releasable'means mounted in said jaw body for clamping said cutter in position,

and a lubricating element mounted in one 7 'of the working faces of said V-shapedj'aw and connected with said jaw body.

5. A tool for the purposeset forth como'risin 'a stationar 'aw 'a lubricatin element carried by said jaw and projecting inwardly therefrom, an adjustable, jaw body provided with a .V-shaped jaw, and a 111? bricating-element mounted in said V-shaped jaw and connected with said'adjustable jaw body.

. '6. A tool for the purpose set'forth comrising a stationary jaw, a lubricating element carried by said jaw and projecting inwardly therefrom, an adjustable jaw body provided with a V-shaped jaw, a lubricating 1 element mounted in said V -shaped jaw and connected with said adjustable jaw body,

and an adjustable cutter mounted in said jaw body andextending betweenthe workin faces of said V-shaped jaw.

A' tool for the purpose set prising a stationary jaw, a lubricating element carried by said jaw and projecting inwardly therefrom, an adjustable jaw body provided with a V-shaped jaw, a lubricating element mounted in said V-shaped jaw and connected with said" adjustable jaw body, an adjustable cutter mounted insaid ijaw body'and extending between the working faces of said V-shaped jaw, and means mounted in said jaw body for clamping said cutter-in adjusted position.

8. A toolfor the purpose set forth com prising a stationary jaw, an adjustable V--' shaped jaw, a cutter projecting between the workingfacesf of said V-shaped aw, means" for clamping said cutter in adjusted posi-' 'tion, and means adjustably connected-with the V-shaped jaw and engaging said cutter eXteriorly of the jaw for adjusting the cutter.

9. A tool for the purpose set forth comforth comprising a stationary jaw provided .on'its inner face with a transversely extending V- sha ped abutment, an adjustable jaw body provided with a V-shaped jaw opposing said abutment, an adjustable cutter mounted in said adjustable jaw body and extending between .the working faces. of said V -shaped jaw, releasable means mounted in said jaw body for clamping said cutter in adjusted position, and means adjustably connected with said jaw body and engaging said cutter, exteriorly of the jaw body, for adjusting and supporting said cutter.

10. A tool for the purpose set forth comprising a stationary jaw provided on its in- 'ner face with a transversely extending V- shaped abutment, an adjustable jaw body provided with a Vshaped jaw opposing said abutment, an adjustable cutter mounted in "said adjustable aw body and extending be said jaw body and engaging said cutter, (EX- terioriy of the jaw body, for adjusting and supporting said cutter, and a lubricating element carried by said fixed jaw and adjustable jaw body.

11. A tool for the purpose set forth comprising a stationary jaw provided on its inner face with a transversely extending V- shaped abutment, an adjustable jaw body provieed with a V-shaped jaw opposing said abutment, an adjustable cutter mounted in said adjustable jaw body and extending between the working faces of said V-shaped jaw, releasable means mounted in said jaw body for clamping said cutter in adjusted position, means adjustably connected with said jaw body and engaging said cutter, ex, teriorly of the jaw body, for adjustingand supporting said cutter, and means for imparting tension to the said adjusting and supporting means for said cutter.

In testimony whereof, I aflizc my signature hereto.

GEORGE F. KRIE GER,