US1595933A

US1595933A - Reversing gearing

Info

Publication number: US1595933A
Application number: US74540A
Authority: US
Inventors: Hayes Charles
Original assignee: COAL CARBONIZATION Co
Current assignee: COAL CARBONIZATION Co
Priority date: 1925-12-10
Filing date: 1925-12-10
Publication date: 1926-08-10
Anticipated expiration: 1943-08-10

Description

Aug. 10 1926.

C. HAYES REVERS IN'G GEAR ING Filed Dec. 10. 1925 Patented Aug. 10, 1926.

UNITED STATES 1,595,933 PATENT OFFICE.

GHARLES HAYES, OF PARIS, FRANCE, ASSIGNOR TO COAL CARBONIZATION' COMPANY, A CORPORATION OF DELAWARE.

IBEVERSING GEABING.

Application filed December 10, 1925. Serial- No. 74,540.

. My invention relates to reversing gearing of the type in which a continuously rotary driving member causes a driven member to rotate in one direction through a predetermined are then in the opposite direction through a greater are in the opposite direction so as to produce in the driven member oscillating and rotating movement. My invention has for its object to provide a construction and arrangement of gearing of the type stated which willbe adapted to effect oscillating and rotating movement ofa relatively large and heavy bod N iimerous forms of mechanism for effecting this oscillating and rotating movement in valve grinding devices are known but in valve grinding the valve to be ground to its seat is usually of relatively small diameter and weight and does not acquire sufficient momentum in its movement in one direction to create any material obstacle to reversal of its movement. Therefore as there is no great resistance to be overcome the gearing of these valve grinders need not be, and are not, adapted for heavy duty. In order to oscillate and rotate a relatively heavy body of relatively great diameter the gearing must be adapted to overcome the momentum of the operated body so as to first check and then reverse without shock and without breakage of the operating parts.

With the object above indicated in View my invention consists in the construction and combination of elements hereinafter described and claimed.

Referring to the drawings Figure 1 is a side view of my improved gearing and Figure 2 is a diagrammatic view showing the position of the operating elements of the driving gear.

In the drawing 1 indicates a drive shaft carryin a cylinder 2 which with the operating elements carried by itconstitute the driving member of the gear. These. operating elements consist of

rollers

3, 4, 5, 6, 7 8 and 9, preferably conical with their bases adjacent to the peripheral surface of the cylinder, each carried on a stub shaft extending radially from the periphery of the cylinder 2,, these stub shafts being marked respectively 3 4 5 6 7 9. The rollers 3 and 4 are arranged to the left of the median line of the cylinder 8 and 2 and

therollers

7 and 8 are arranged to the right of the median line, the

rollers

5, 6 and 9 being arranged on or approximately on the median line.

The rollers 3 and 4 are so one overlaps the other, the roller 3 being cut away as shown at 3 to form a recess into which the periphery of roller 4 fits, the roller 3, of course; being non-rotatable. Similarly the roller 7 is cut away asshown at 7 2 to form a recess into which the periphery of roller 8 fits. By reason of the arrangement there is no passage between rollers 3 and 4 or between

rollers

7 and 8, for the teeth of the driven gear 10.

Driven gear 10 is carried by a shaft 11 and consists of a disc of substantial thickness having radially extending stub shafts 12 on each of which is mounted to rotate freely a roller 13, the stub shafts, and the rollers carried by them being equally spaced apart about the periphery of the disc at sucli istance between adajcent "rollers as to permit a

roller

5, 6, or 9 of the driving gear to pass between them when the driving and arranged that driven gears are arranged with their axles at right angles as shown in Figure 1. The

cated by broken lines in Figure 2 rotation of the driving gear in the direction indicated by the arrow the roller 5 will act upon the roller 13 of the driven gear to force it to the right bringing roller 13 into position to be engaged by roller 4 to cause it to move to the right. This brings the next roller to 13 against the fixed roller 3 by which it is stopped from further movement to the right and as the driving gear continues its rotation the roller 3 causes this roller next'to roller 13 to move to the left. Further rotation of the driving gear brings roller 9- into engagement with roller 13 and as the rotation continues roller 9 comes into contact with roller 13*. Further rotation of the driving gear brings roller 13 against roller 7 which stops its movement to the left and causes ,it to move to the right. Further rotation of the driving gear causes roller 6 to engage roller 13 and move it to the right and the further rotation brings roller into engagement with roller 13".

As there are two isolated rollers 5 and 6, between the reversing rollers 3-4, and 7-8,

. and only one isolated roller, 9, between the reversing rollers 7-8 and 34, it will be seen that the driven gear will be rotated further to the left than it is rotated to the right. Thus the driven gear will be not only oscillated first in one direction and then in the other, but will be gradually rotated through a complete rotation.

The

rollers

3, 4, 5, 6, 7 8 and 9 of the driving gear and the rollers 13 of the driven gear are tapered from their bases outward at substantially the same angle so that the rollers on the driven gear bear a ainst the roller of the driving gear with w ich they make contact, throughout the full length of a line journey its outer end and base. As the rollers of the two gears are, except

rollers

3 and 7 free to rotate their contact is a rolling contact thus lessening friction and tending to smoothness of operation.

The shaft of the driven gear may be provided with a suitable sprocket or other gear for communicating the oscillating and rotary movement to the object to be moved. The particular object which the gearing herein described is intended to operate is a retort or digester for distilling or carbonizing coal but it may be used for rotating retorts or kilns for other purposes or for imparting the oscillating and reciprocating movement to any desired object. 1

Having thus described my invention what I claim is 1. The combination of a driving gear and a driven gear arranged with their axes at right angles and each having engaging means extending radially from its periphery,

the engaging means ofthe driven gear being spaced at equal distances apart and the engaging means of the driving gear comprising means for acting upon the engaging means of the driven gear to rotate it in one direction through a predetermined arc, means for reversing the direction of its rotation, means for rotating it in the reverse direction through a predetermined arc and means for again reversing the direction of its rotation the reversing means consisting of two rollers so mounted that their peripheries overlap, located out of line with the other engaging means of the driving ear.

g 2. The combination of a driving gear and a driven gear arranged with their axes at right angles and each having engaging means extending radially from its periphery, the engaging-means of the driven gear being spaced at equal distances apart and the engaging means of the driving gear comother engaging means of the driving gear.

3. The combination of a driving gear and a driven gear arranged with their axes at right angles and each having engaging means extending radially from its periphery, the engaging means of the driven gear consisting of rollers carried on radial stub shafts spaced at equal distances apart and the engaging means of the driving gear comprising means for acting upon the engaging means of the driven gear to rotate it in one direct-ion through a predetermined are, means for reversing the direction of its rotation, means for rotating it in the reverse direction through a predetermined arc and means for again reversing the direction of its rotation, the engaging means of the driving gear consisting of rollers carried on radial stub shafts, the reversing means consisting of two rollers so mounted that their peripheries overlap, located out. of line with the other engaging means of the driving gear.

4. The combination of a driving gear and a driven gear arranged with their axes at right angles and each having engaging means extending radially from its periphery, the engaging means of the driven gear consisting of frustro conical rollers carried on radial stub shafts spaced at equal distances apart and the engaging means of the driving gear comprising means for acting upon the engaging means of the driven gear to rotate it in one direction through a predetermined arc, means for reversing the direction of its rotation, means for rotating it in the reverse direction through a predeterminedarc and means for again reversing the direction of its rotation,

the engaging means of the driving gear con? sisting of frustro conlcal rollers, the reversing means conslstlng of two frustro oonicai rollers so mounted that their peripheries overlap, located out of line with the other en aging means of the driving gear.

testimony whereof, I hereunto afix my signature. CHARLES HAYES.