US1178400A - Polishing-machine. - Google Patents

Description

L. A. JONES.

POiLlSHING MACHINE.

APPLICATION man Nov. 24. 1915 Patented Apr. 4, 1916.

3 hHEETS-SHEET I wvcwfo'z l.A;. Jbrzes l I g ethane THE COLUMBIA PLANOGRAPH c0., WASHINGTON. D. c.

L. A. JONES. POLISHING MACHINE.

APPLICATION FILED NOV. 24. 1915.

Patented Apr. 4, 1916. x 3 SHEETS-SHEET 2 gwue'nfoz L. A. JONES.

I POLISHING MACHINE.

APPLICATION FILED Nov. 24. 1915.

Patnted Apr. 4, 1916.

3 SHEETSSHEET 3- THE COLUMBIA PMNOGEAPH 00., WASHINGTON, n. c

FFKC LAWRENCE A. JONES, 0F CLYDE, OHIO.

POLISHING-MACHINE.

Application filed November 24, 1915.

To all whom it may concern Be it known that I, LAwRnNoE A. JONES, a. citizen of the United States, residing at Clyde, in the county of Sandusky and State of Ohio, have invented certain new and useful Improvements in Polishing-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in polishing machines designed especially for use in polishing knives, cutlery and other articles and affording means whereby both sides of the article may be operated upon at the same time.

My invention comprises a simple and efficient device of this nature having various details of construction, combinations and arrangements of parts which will be hereinafter fully described, shown in the accompanying drawings and then specifically de fined in the appended claims.

My invention is illustrated in the accompanying drawings, in which Figure 1 is a top plan view of the apparatus. Fig. 2 is a side elevation. Fig. 3 is a sectional view taken on line 33 of Fig. 1. Fig. 4 is a sectional view taken on line 44 of Fig. 1, and Fig. 5 is a detail in end elevation of one end of the machine, as illustrated in Fig. 2 of the drawings.

Reference now being had to the details of the drawings by numeral, 1 designates the frame of the apparatus upon which a movable carriage 2 is mounted to have a reciprocating movement and which carries an adjustable knife-holding support 3 upon which a knife or other article to be polished is held. Said holder 3 is capable of different adjustments through the medium of the set screw 5, shown in Fig. 2 of the drawings. Carriage 2 has rack teeth 7 upon the under side thereof which are in mesh with the teeth of a pinion 8, affording means whereby the carriage may be reciprocated.

Said carriage is provided with-a slot 9',

shown in Figs. 1 and 4, and has adjustable stops 10 which are held in different adjusted positions by means of the set screws 11. A horizontally disposed, rotatable shaft 12 is provided with beveled gear wheels 13 Specification of Letters Patent.

Patented Apr. 4, 1916.

Serial No. 63,301.

and 14, shown in Fig. 4 of the drawings, and which are loosely journaled upon the shaft 12, journaled in suitable bearings upon the frame, and said shaft 12 has a worm gear 16 fixed thereto which is in mesh with the worm upon the driving shaft 17, which is adapted to be driven continuously in one direction. Each beveled gear has a hub portion with serrations thereon adapted to mesh with the teeth at either end of the splined clutch collar 19 which is mounted upon the shaft 12. A forked clutch throwing member 20 is connected to the clutch collar 19 and has two arms 21 and 22 which are apertured to receive the rod 23, which is mounted in apertures in the end wall of the carriage. ,4 member 24 having two laterally projecting arms 25 and 26 at the lower end thereof is fastened to the rod 23 and its upper end projects through the slot 9 and is adapted to be in the path of one or the other of the stops 10 and which causes, when the carriage is moving in one direction, the member 24 to more therewith. Coiled springs, designated by numerals 27 and 28, are mounted'upon the rod 23 and interposed between shouldered portions thereof and the arms 21 and 22. Pivotal pawls 29 and 30 are mounted upon the opposite walls of the carriage and have shouldered portions 31 which are adapted to engage the outer faces of the arms 21 and 22 when moved in one direction or the other and adapted to hold one end of the clutch collar 19 or the other in engagement with the teeth upon one hub portion or the other of the gear wheels 13 and 14. A releasing member, designated by numeral 32, is mounted upon a pivot 33 upon the carriage and its shouldered portion is adapted to engage the angled end 21 of the arm 28.

Adjustable carriages 33 and 34, shown clearly in Fig. 3 of the drawings, are mounted to have adjustable movements intermediate the guideways 37, shown in Fig. 1 of the drawings, and are moved to different adjusted positions through the medium of the screws 38 passing through threaded apertures in the lugs 39. Pivotally mounted upon the pins 40 carried by the lugs 41 upon said carriages 33 and 34 are the bars 42 carrying the shafts 43 which have fixed thereto the polishing wheels 43 and which shafts 43' are driven by pulleys 43 fixed thereto, and to the lower end of each bar 42 is fasteneda laterally projecting bar 44, the

inner ends of which overlap, as shown clearly in Fig. 3 of the drawings.

Mounted to have a longitudinal movement upon the table of the frame is a carriage 4L5, shown in top plan view in Fig. 1 of the drawings and in elevation in Fig. 2, and guided upon the frame by the strips 46. Said carriage has a contracted portion 527 upon its lower edge, as shown clearly in Figs. 2 and 3 of the drawings, and which projects through a slot i8 in the table of the frame and said contracted portion has a cam edge 49, shown in dotted lines in Fig. 2 of the drawings, which is adapted to contact with an anti-friction roller journaled upon a vertically movable block 51 held between the guideways 52 and a coiled spring 53 is mounted upon a lug 54E upon the bearing block 55 which is also movable in the guideways 52, and an anti-friction roller 56 is carried by the block 55 and is adapted to bear against the overlapping ends of the bars ftfh to cause the supports for the polishing wheels to tilt to throw the latter toward or away from each other.

A rack bar, designated by numeral 58, is held by means of a set screw 59 in different adjusted positions upon the carriage 45 and the teeth of said rack bar 58 are in mesh with the teeth of the gear wheel 8, affording means whereby, as the carriage 2 carrying the article to be polished is moved in one direction, the rack bar 58 will move in the opposite direction to cause the reversal of the clutch mechanism and which affords means for giving an automatic reciprocating movement to the knife to be polished.

In operation, the article to be polished is adjusted upon the holder 3 and a continuous motion is imparted to the shaft 12. In the drawings, the clutch mechanism is shown in neutral position, the spring 28 being under tension. hen it is desired to start the apparatus, the releasing lever 32 is tilted out of engagement with the end of the adjacent arm 21, allowing the spring 28 to throw the member 20 therewith and which will cause the clutch 1a to be engaged by the teeth in the adjacent end of the splined clutch 19, thus causing the carriage carrying the article to be fed forward between the polishing wheels a3. As the carriage is fed toward the polishing wheels, the carriage 45 will be moved in the opposite direction and, as the cam projection 49, shown in Fig. 2, comes in contact with the anti-friction roller 50, the blocks 51 and 55 will be moved downward, causing the bars 44 to tilt and the wheels 43 to move toward each other to engage the opposite faces of the article being polished, the spring 53 allowing the parts to yield slightly. As the carriage carrying the article to be polished approaches its limit of travel in one direction, one of the stops 10 thereon will contact with the projection 24:, causing the same and the rod 23 to move therewith and, when the arm 25 comes in contact with'the inclined end of the member 30, the latter will be tilted upon its pivot, releasing the forked member 28, thus shifting the clutch mechanism and causing the shaft carrying the gear wheel 8 to reverse and thereby driving the carriage carrying the article to be polished in a reverse direction and, when the other stop 10 comes in contact with the other edge of the projec tion 2-l, the same operation will be repeated, the clutch being thrown in the opposite direction, the member 29 being released from the adjacent edge 22. It will be noted, therefore, that by the provision of the apparatus shown and described, an automatic means is provided whereby the article to be polished may be reciprocated back and forth between the polishing wheels, the adjusting means being provided whereby the polishing wheels may be held in different positions and adapted for use for polishing knives and articles of various kinds.

hat I claim to be new is 1. An apparatus for polishing knives and other articles, comprising a frame, a reciprocating carriage upon which the article to be polished is mounted, adjustable polishing wheels between which the article to be polished is moved, a carriage with a cam projection, a rack bar adjustably connected to said carriage with the cam projection, a gear wheel in mesh with said rack bar, clutch and gear mechanism for causing reverse movements to be imparted to said carriages, and stops upon the knife-carrying carriage for causing the clutch mechanism to be actuated. V

2. An apparatus for simultaneously polishing the opposite faces of knives and other articles, consisting of a frame, a carriage adapted to reciprocate thereon and upon which the articleto be polished is mounted, a rack bar upon said carriage, a rotatable shaft, a clutch collar splined thereto, loosely mounted gear wheels upon the shaft and having gear teeth upon the hubs thereof, stops upon the carriage, a projection upon the splined member in the path of said stop members, pivotal bars and polishing wheels carried thereby, a second carriage with a cam projection, a rack bar, a gear wheel inter-meshing with said rack bar, said cam projection designed to tilt the polishing wheel supporting bars as the lniife-carrying carriage is moved in one direction or the other, and means for reversing the movement of said carriages.

3. An apparatus for simultaneously polishing the opposite faces of knives and other articles, consisting of a frame, a carriage adapted to reciprocate thereon and upon which the article to be polished is mounted, a rack bar upon said carriage, a

' shaft, a clutch collar splined thereto,

mounted gear wheels upon the shaft and rotatable shaft, a clutch collar splined thereto, loosely mounted gear wheels upon the shaft and having gear teeth upon the hubs thereof, stops upon the carriage, a projection upon the splined member in the path of said stop members, polishing wheels and pivotal supports therefor, bars upon said supports, a second reciprocating carriage with cam edge thereof, vertically movable blocks adapted to be actuated by said cam edge, and to actuate said bars and cause the polishing wheel supports to tilt, a rack bar mounted upon said carriage with cam edge, a gear wheel intermeshing with said rack bars, and means for automatically reversing the movements of the carriages.

4. An apparatus for simultaneously polishing the opposite faces of knives and other articles, consisting of a frame, a carriage adapted to reciprocate thereon and upon which the article to be polished is mounted, a rack bar upon said carriage, a rotatable loosely having gear teeth upon the hubs thereof, stops upon the carriage, a projection upon the splined member in the path of said stop members, polishing wheels and pivotal supports therefor, bars upon said supports, a second reciprocating carriage with cam edge thereon, vertically movable blocks adapted to be actuated by said cam edge and to actuate said bars and cause the polishing wheel supports to tilt, an adjustable rack bar mounted upon said carriage with cam edge, a gear wheel intermeshing with the rack bars, and means for automatically reversing the movement of the carriages.

5. An apparatus for simultaneously polishing the opposite sides of knives and other articles, comprising a frame, a reciprocating knife-carrying carriage, a rack bar movable therewith, a rotatable shaft, gear wheels loosely journaled thereon and having hubs with rack teeth, a clutch collar splined to said shaft, a clutch throwing member having laterally projecting arms with apertured angled ends, a rod passing through said apertures, a member fixed to said rod and having laterally projecting ends, springs interposed between said member upon the rod and the angled ends of the clutch members, pivotal pawls adapted to engage the ends of said clutch throwing members, pivotal releasing members upon the frame, polishing wheels and adjustable supports therefor, and means for moving the wheels toward each other as the knife-carrying carriage is actuated in one direction. I

6. An apparatus for simultaneously pol- Gopies of this patent may be obtained for five cents each, by addressing the -ends overlapping each other,

- with cam edge,

ishing the opposite sides of knives and other articles, comprising a frame, a reciprocating knife-carrying carriage, a rack bar movable therewith, a rotatable shaft, gear wheels loosely journaled thereon and having hubs with rack teeth, a clutch collar splined to said shaft, a clutch throwing memberhaving laterally projecting arms with apertured angled ends, a rod passing through said apertures, a member fixed to said rod and having laterally projecting ends, springs interposed between said member upon the rod and the angled ends of the clutch members, pivotal pawls adapted to engage the ends of said clutch thro ing members, pivotal releasing members upon the frame, polishing wheels and adjustable supports therefor, a second carriage with a cam edge, projections upon said supports and extending toward each other, spring-pressed blocks mounted in guideways upon theframe, antifriction wheels carried by said blocks, one of which wheels is in the path of said cam edge and the other adapted to bear against said face upon the wheel supports.

7. An apparatus for simultaneously polishing the opposite-sides of knives and other articles, comprising a frame, a reciprocating knife-carrying carriage, a rack bar movable therewith, a rotatable shaft, gear wheels loosely journaled thereon and having hubs with rack teeth, a clutch collar splined to said shaft, a clutch throwing member having laterally projecting arms with apertured angled ends, a rod passing through said apertures, a member fixed to said rod and having laterally projecting ends, springs interposed between said member upon the rod and the angled ends of the clutch members, pivotal pawls adapted to engage the ends of said clutch throwing members, pivotal releasing members upon the frame, polish ing wheels and supports therefor, carriages mounted upon the frame and screws for moving the same in opposite directions, bars fastened to said supports and their free a carriage with cam edge, a rack bar upon said carriage spring-pressed blocks, antithereon, one of whichantifriction wheels is positioned in the path of said cam edge and the other adapted to bear against the overlapping portions of said bars.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses,

LAWRENCE A. JONES.

friction wheels Witnesses WM. GETZLER, L. BUZZELL.

Commissioner of Patents,

Washington, D. G.

Images