USRE7022E - Improvement in friction-gears - Google Patents

Description

F. SIMMONS.

FnrcTIoN-GEAR. y No. 7,022. Reissuea March 28,1876.`

Jig. 1.

" lidi" 'UNITED' STATES FRANKLIN SIMMONS, OF NEW ORLEANS, LOUISIANA,

VAssicfivon on ons.

HALF INTEREST TO H. DUDLEY COLEMAN.

IMPROVEMENT IN FRlCTlON-GEARS.

Specification forming part of `Letters Patent No. 138,444, dated April 29, 1873; reissue No.' 7,022, dated March 28,1876; application iiledNovember 30, 1875.

To all whom it may concern Be it known that I, FRANKLIN SIMMONS, of New Orleans, parish of Orleans, and State of Louisiana, have invented certain new and useful Improvements in Friction-Gear; and I do' hereby declare that the-followin g is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure 1 is a plan or top viewy of my invention, and Fig. 2 a part sectional view taken on the line .r :v of Fig. 1.

rThis invention has re ation to that class of frictiongear in which the speed may be varied by causing the friction pulley or roller to be brought in contact with frictional surfaces of different diameters; and the present invention has for its object to operate the screw or nut ot' a cotton-press, which, in practice, and when the cotton therein placed is being subjected to pressure, necessarily requires to be run with great power and with moderate speed, while for reversing the same, in order to release the followers, it maybe run with great or increased speed, thereby saving time. My invention accomplishes both these results in an exceedingly simple, economical, and effective manner. l

My invention, therefore, consists in a pulley or wheel having parallel faces or frictional surfaces of unequal diameters, so that the speed may not only be changed, but the direction of motion reversed.

My invention further consists, in connection with a pulley or wheel having parallel frictional faces or surfaces of unequal diameters, of a frictional pulley so arranged in relation thereto, as will admit of the same being brought in position to engage with either of the two faces or frictional surfaces of the pulley or wheel, for the purpose of securing greater power with less speed, or less power with greater speed, and at the same time reverse the direction of motion.

In the accompanying drawings, A represents a frame-work of suitable form and construction, and upon which a cotton-press may be placed, and also serving to support the shafts and pulleys,

several bearings for the `the box being adjusted or spokes without in the and the gearing for operating the press there-ly with connected. B represents the main driving-pulley, keyed or otherwise secured to the outer end of a shaft, a.

Upon the opposite end of the shaft a is a small friction-pulley, G, said pulley being capable of a longitudinal adjustment by having the inner end of the shaft near the frictionroller supported or having lits bearings in a sliding journal-box, c, which is operated by a screw-threaded rod, D, held in position by a standard, d, through which it passes loosely, and is connected with the box c by the screwthreaded portion of the rod passing through screw-threaded standards e e, formed upon the ends of a plate, f, the same being rigidly connected to the upper face of the journal-box. The bolt-holes in the base of the journal-box are `elongated to an extent that will admit of to the required distance back or forth.

The double-faced friction pulley or Wheel, (represen ted at E,) which I consider the principal feature of myinvention, is formed with rims F G, the frictional faces or surfaces of said rims being of unequal diameters, and arranged opposite to each other, as shown at g h. The rim F I have shown as the external or outer rim G by solid meta-l; but it Vis plainly evident that the said rims may be connected, if desired, by radial arms least degree changing the character of my invention.

It will be seen that by the employment of a wheel or pulley having parallel frictional surfaces of unequal diameters, as above de scribed, the speed may be changed and the direction of motion reversed at pleasure.

For the purpose of running the'screw or screws to secure pressure against vthe cotton, the face of the friction-pulley B is brought in contact with the friction-surface h of the rim G, moving the pulley E slowly, and in the same direction as itself runs and when it is desired to run the screw with a view to relieve the cotton from pressure, the face of the pulley is brought against, or ineontact with, the

convex surface g of the rim F, giving a motion opposite to that of the pulley B, and much faster than when engaging with the face of being connected with e Que larger rim G. When itis desired to allow A-the fl'ietion-lnllley B to run idle. by not engaging it with either face or frietional surface of the rims, suieient space is left between the rims for that purpose.

Although I have described my invention as applied to a cotton-press, I do not wish to be understood ns confining myself thereto, as it muy be rendered available for u variety of different mechanical purposes.

Having' nowr fully described my invention, what I claim ns new, and desire to secure by Letters Patent, is-

1. A friction -geulr consisting of a.. wheel or pulley having parallel frietioual surfaces of unequal diameters, for the purpose of chunging the speed and direction et' motion, substantially as and forthe purpose set forth.

2. The combination ofa pulley or wheel having Vparallel* frietional surfaces of unequal diameters with an ndiustable frictional pulley or roller, substantially as and for the purpose described. A

' FRANKLIN SIMMONS.

VVitnes'ses H. N. JENKINS, T. J. ROACII.

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