US2543193A - Hone - Google Patents

Description

Feb., 279 1951 .1. .1. PALOTSEE HONE 3 Sheets-Sheefl l Filed DeC. 6, 1946 Feb., 27, 1951 J. J. PALoTsEE HONE 3 Sheets-Sheet 2 Filed Dec. 6, 1946 Feb. 27, 31951 1J, PALOTSEE 2,543,193

HONE

Filed Dec. 6, 1946 3 Sheets-Sheet 3 Patented Feb. 27, 1951 UNIED STATES PATENT OFFICE HONE John J. Palotsee, Youngstown, Ohio Application December 6, 1946, Serial No. 714,459

`6 Claims. i

rThis invention is a novel adjustable hone, particularly adapted for use in hone rotating machines, preferably but not necessarily of the type shown in my U. S. Letters Patent No. 2,358,247, dated September 12, 1944, the present invention being an improvement upon the hones disclosed in my U. S. Letters Patent No. 1,269,378, dated January 6, i942; No. 2,332,453, dated October 19, 1943; and No. 2,338,963, dated January 1l, 1944; also the hone shown in my co-pendng application Serial No. 585,629, led March 30, 1945, (now Patent No. 2,412,419, dated December 10, 1946).

rlhe principal object of the present invention is to provide an adjustable abrasive cylindrical hone, particularly adapted for grinding, machine finishing, polishing, cylindrical bearings or the like, the hone consisting of a spindle carrying an annular series of radially disposed blades each carrying Carborundum or other abrasive hone sections or carrying tubular flexible abrasive cylinders, the blades when fully contracted around the spindle forming a substantially cylindrical surface, the blades and spindle being provided with complementary tapered surfaces cooperating with means for shifting the assembly of blades axially of the spindle to effect expansion or contraction of the hone with respect to the spindle.

Other minor objects of the invention will be hereinafter set forth.

I will explain the invention with reference to the accompanying drawings which illustrate several practical embodiments thereof, to enable others familiar with the art to ado-pt and use the same; and will summarize in the claims, the novel features of construction, and novel combinations of parts, for which protection is desired.

In said drawings:

Figure l is a side elevation, partly in section, showing one form of hone embodying my invention.

Fig. 2 is an enlarged transverse section on the line 2 2, Fig. 1.

Fig. 8 is a top plan View of the spindle, detached.

Fig. 4 is an enlarged transverse section on the line iw, Fig. 3.

Fig, 5 is a side elevation of one form of the blades, detached.

6 is an end view of the blade shown in Fig. 5.

Fig. l is a top plan :view of the preferred form of blade, detached.

Fig. 8 is a transverse section on the line 8 8, Fig. 7.

Fig. 9 is a plan view, partly in section, showing an abrasive flexible cylinder adapted to be mounted upon the hone.

Fig. 10 is an end view of the cylinder shown in Fig. 9.

Fig. 11 is an elevation of a grooved modied blade for carrying a stone hone section cemented thereon.

Fig. 12 is a plan view of the stone section used with the blade shown in Fig. 11.

Fig. 13 is a transverse section of the spindle, blades, and stones shown in Figs. 11 and l2.

Fig. 14 is a plan View of the blades of another modified hone adapted to use an abrasive coated sleeve.

Fig. 15 is a plan view of the abrasive coated sleeve used on the hone shown in Fig. 14.

Fig. 16 is a transverse section through the spindle blades and sleeve shown in Figs. 14 and 15.

The hone shown in Figs. 1-10 inclusive comprises a spindle I, shown more particularly in Figs. 3 and 4, said spindle being of small cylindrical shape, and being threaded as at Ia at one end, whereby the same may be mounted in a socket H of the flexible shaft H of a honing machine such as shown in my U. S. Letters Patent No. 2,358,248 aforesaid; however, the spindle I may be mounted for rotation on any other desired machine. The opposite end of spindle I is threaded as at Ib. Intermediate the threaded portions la, Ib is an annular series of spaced inclined grooves Ic, three such series being shown in Fig. 4, evenly spaced apart around the circumference of the spindle. The grooves Ic all slope in the same direction and have the same angularly with respect to the axis of spindle I, and the lower or deeper ends thereof are preferably rounded upwardly as at Id.

On spindle I adjacent the threaded portion Ia is a collar 2 having a conical recess 2a in its inner end, and having an annular recess 2b at its outer end. Threaded upon the portion la beyond the collar 2 is a nut 3 having a non-circular outer end 3a to facilitate turning, the main portion of the outer surface of the nut being knurled as at 3b to assist manual turning of the nut. At the inner end of nut 3 is an annular flange 3c receiving the recessed end 2b of collar 2, and preferably the annular flange 3c is provided with calibrations 3d cooperating with a zero mark on the collar 2 to assist the operator in determining variations in diameter of the hone.

Adjacent the opposite end of spindle I is a collar 4 similar to collar 2, same having a conical recess lla in its inner end. A nut 5 is provided 3 on the threaded portion Ib of spindle I and 1s locked in position by set screw 6. Around spindle I between the nut 5 and the collar 4 is a spring 'I, normally urging collar 4 towards the collar 2, for the purpose hereinafter described.

Around spindle I between the collars 2 and l is an annular series of blades 8, three being shown in Fig. 2. As shown more particularly in Figs. 2, 5, 6 and 7, the blades 8 are arcuate in cross section, the inner surfaces conforming in curvature to that of the spindle I, as shown in Fig. 2. On the under side of each blade 8 at the center thereof are spaced aligned inclined ribs Sa having their inner lower edges shaped to conform with the shape of the inclined grooves Ic in spindle I, the ribs 8a conforming in spacing and width to the grooves Ic, as shown in Fig. 1. The ends of blades 8 are oppositely beveled as at Sb to conform with the conical recesses 2a and ia of the collars 2 and 4, the conical recesses engaging the inclined ends 8b whereby the annular series will be yieldably .positioned around the spindle by action of the spring l.

The outer side edges of each of the blades 3 may be recessed as at 8c, although the recesses may, if desired, be omitted. As shown in Fig. 7, the outer surface of each blade 8 preferably has a series of shallow holes 8d in which suction is set up to assist in retaining the cylindrical iiexible abrasive sleeve 9 on the assembly of blades when placed thereon, the abrasive sleeve 9 being of length conforming with that of the blades 8. The holes 8a will serve, by suction, to maintain the abrasive cylinder 9 on the blades to prevent slippage or shifting during the honing operation. By the above construction, when the nut 3 is rotated relative to the spindle i, the Collar 2 will be shifted towards the collar Il, which will yield under pressure of spring 1 and the series of blades 8 will be shifted axially of spindle I, causing the inclined ribs 8a to ride upwardly in their inclined slots Ic in the spindle whereby the diameter of the hone will be enlarged.

The abrasive coated sleeves `9 may be made of any suitable material whose surface is coated with abrasive. Ribs En: (Fig. 10) may be provided in the bores of the sleeves 9 to engage the grooves 8c in the blades (Fig. 2) to prevent the sleeve from turning on the hone during operation thereof. sleeves S as a cutting tool makes it possible to use a relatively long spindle and blades since the blades 8 themselves may be made thicker than those which carry stone hone sections, and the thicker blades are obviously more rigid throughout their length. The use of the sleeves 9 also provides for greater accuracy since wear thereon is relatively even and the diameter of the hone will remain substantially uniform. A worn sleeve 9 may be quickly and easily replaced by a new one, thus making my hone economical to use. The sleeves S are readily available in various diameters for use on the same hone when adjusted to corresponding diameters, and thus the hone is not limited to use with sleeves of only one diameter.

In Figs. 11, 12 and 13 a modification is shown in which the blades IQ as in the preceding figures have beveled ends and have the inclined ribs on their under sides. In this modification, however, the outer face of each blade IB is provided with a shallow V-shaped spiral groove IIla throughout its length, the pitch being relatively small as indicated in Fig. 11, and the groove Illa preparing the surface of the blades I0 for the The use of the flexible abrasive cement which secures an arcuate-shaped stone hone II thereto, the assembly of stones II when the blades IE! are fully contracted around the spindle I forming a substantially cylindrical surface, as shown in Fig. 13.

In Figs. 14, 15 and 16 a further modication is shown in which the blades I2 are generally similar to those in the preceding modifications with the exception that their outer surfaces are provided with oppositely extending shallow V- shaped grooves I2a and I2b respectively, as shown in Fig. 14, adapted to prevent turning oi the abrasive coated sleeve I3 mounted around the blades I2, the grooves I2a and I2b replacing the holes 8d in the blade shown in Fig. '7 but serving the same purpose.

I do not limit my invention to the exact form shown in the drawings, for obviously changes may be made therein within the scope of the claims; and I do not herein claim the embodiment shown in Fig. i3 of the present case, as the same will form subject matter of a divisional application.

I claim:

l. An adjustable hone, comprising a spindle of uniform cross-sectional size and shape throughout its length and having an annular series of spaced aligned grooves therein having their bottoms inclined in the same direction and disposed at the same angle to the axis of the spindle; an annular series of blades around the spindle having their inner faces conforming with the shape of the spindle, each blade having a series of axially disposed aligned ribs on its inner face engaging the sides and bottoms of their related grooves, said ribs having their inner faces inclined in the same direction as and at the same angle as the bottoms of the grooves; said series of blades when in fully retracted position forming a substantially cylindrical surface; means yieldably maintaining the blades positioned around the spindle while permitting the blades to be simultaneously shifted axially of the spindle to vary the diameter of the hone; and an abrasive member carried by the blades said abrasive member comprising a flexible tubular sleeve of continuous periphery disposed around the blades and having an abrasive coating.

2. In a hone as set forth in claim 1, said blades having shallow holes in their outer faces.

3. In a hone as set forth in claim 1, said blades having oppositely extending spiral grooves of relatively steep pitch in their outer faces.

4. An adjustable hone comprising a cylindrical spindle of uniform size and having an annular' series of spaced aligned grooves therein having their bottoms inclined in the same direction and disposed at the same angle to the axis of the spindle; an annular series of blades around the spindle having their inner and outer faces conforming with the curvature of the spindle, each blade having a series of axially disposed aligned ribs on its under side engaging the sides and -bottoms of their related grooves, said ribs having their inner faces inclined in the same direction as and at the same angle as the bottoms of the grooves; means yieldably maintaining the blades positioned around the spindle while permitting the blades to be simultaneously shifted axially of the spindle to vary the diameter of the hone; and an abrasive member carried by the blades and comprising a flexible tubular sleeve of continuous periphery disposed around the blades and having an abrasive coating.

5 5. In a hone as set forth in claim 4, said blades having shallow holes in their outer faces.

6. In a hone as set forth in claim 4, said Ablades having oppositely extending spiral grooves of relatively steep pitch in their outer faces.

JOHN J. PALOTSEE.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date Berck Apr. 22, 1930 Moser Nov. 18, 1930 Levoy July 10, 1934 Disco Nov. 8, 1938 Palotsee Jan. 6, 1942 Palotsee Oct. 19, 1943 Staples Dec. 7, 1943 Palotce Jan. 11, 1944 Elliott Dec. 25, 1945

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