US112187A - Improvement in gearing and ungearing pinions and wheels - Google Patents

Description

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Jona SKINNER, or HADLEY, MIoHIcA'N.

Letters Patent No. 112,187, dated February 28, 1871.

IMPROVEMENT IN GEARING ANDUNGEARING PINIONS AND WHEELS.

The Schedule referred to in these Letters Patent and making part of the same.

To whom it may conce/rn Beit known that I, JOHN SKINNR, of Hadley, in the county of Lapeer and State of Michigan, have invented a new and useful Improvement in Devices for Throwing Pinionsand Wheels intoand out of Gear; and I do declare that the following is a -trne and accurate description thereof', reference being had to the accompanying drawing and to the letters of reference marked thereon and being a part of this specification, in which-.- i

Figure l is a perspective of a line of shafting provided with my devices.v

Figure 2 is a detached v,view of a bevel-wheel provided with band.

,Figure 3 is a detached view of the lever, with its attachments for moving tbeband.

Figure 4 is a plan vof a spur-wheel with the band attached, showing the springs.

Figure 5 is a perspective view of my coupling.

Figure 6 is a perspective of the movable sill and attachments for throwing' the spur-wheel into gear with the pinion.

Like letters indicate like parts in each figure.

The nature. of 'this invention relates to devices for thepurpose of starting machinery by means of friction, before throwing the driving-pinion and spurwheel into gear, thereby obviating the great danger of breaking the cogs, which is frequently done when the strain in starting is entirely thrown upon them.

The invention consistsi First, in providing the pinion with a plain face,

and in providing the spur-wheel with a flanged band,

by means of which the machinery is first started by friction.

i) Scondly, in a peculiar device for operating said Thirdly, in a novel coupling, by means of which the various portions of a line of shafting are coupled together so as to be susceptible of a lateral motion.

Fourthly, in a new method of throwing the spurwheel into gear with the pinion.

In the accompanying drawing- A represents a line of shafting, provided with suitable bearings or boxes a, in which said shafting' may freely rotate, being driven by any suitable power.

Upon this shafting is secured, in any convenient manner, the spur-wheel B.

C is a band, fitting the periphery of the spur-wheel B, to which it is secured by the bolts b and the slots c, in such a manner that said band may have a lateral movement.

D is a.pinion, suitably secured to the spindle (l,

and, outside the cogs, it is provided with a plain sur-V face E, as shown, and which'is designed to engage with the right-angle iiange eof the band C.

F is a lever, provided with suitable arms, j, to which are secured the friction-Wheels G. rlhe lower end of this lever is pivoted at any convenient point below the shaft, and the friction-wheels G are so arranged that, with the forward movement of the lever, they will at the same time engage with the rear ofthe band C and force it forward, in a true vertical position, until its face or iiange strikes the plain face of the pinion, when, the line of shafting being in mo, tion, motion is communicated to the spindle by the friction of the ange` and plain face of the pinion being in contact.

H is a lever, pivoted at its outer end at g, 'and itis provided with a box or bearing, I,`in which the shafting rotates.

The opposite end of thislever is secured to another lever, J, the lower endof which is pivoted at any convenient point.

The bearing I upon the lever H is so arranged that, with the forward throw of the lever J, causing acorresponding motion to the end of the lever H, to which it is pivoted, said bearing will strike against the huh of the spnr-wheel and throwitinto gear with the pinion. The reverse motion of the levers H J will cause the bearing Lto stlikeagainst the-coupling K and throw the spur-wheel out of gear with the pinion. In order to do this successfully, the varioussections which form the line of shafting should have a slight lateral movement equal to the length of the cogs upon the spur-wheel.

To provide for this lateral movement I provide a coupling-clutch, K, which is constructed asfollows:

Upon one end of a'section of shafting, and rigidly secured thereto, I provide parallel projections, i, which fit into corresponding recesses, j, iu thehub k, which is secured to the end of the adjoining section of shafting, said hub being surrounded by a band, m, which covers the joint, or the hub and band may be in one piece, if desired.

` L are springs, so arranged and secured to the spurwheel and band that, after the Vsaid wheel has been thrown into gear with the pinion, as hereinbefore de` scribed, the springs will withdraw the liangeot' the band from contact with the plain dace of the pinion.

This device will be found beneficial in almost all kinds of machinery. In the drawing it is shown as applied to the spindles of a flonring-mill, M representing the stones of the mill. The line oi shan-ing may be in constant motion. To'start a run of stones requires much power, and if the pinion is thrown into gear when the shaft is running at ahigh speed the cogs of the pinion and spur-wheel are very liable to break. To obviate this is the object of my invention.

When it is desired to set the stones in motion by means of the appropriate level', the band is given a forward movement(the bolts and slots, by means of spindle and the stone. When the starting has been accomplished, :t proper movement of the other -lever throws the two cogged wheels into gear Without any danger to their cogs.v

What I desire to -secure by Letters Patent is-' l.l The combintion of the mechanical devices herein described, vby means .of which motion is given to machinery by friction, with the devices for throwing the pinion and spur-wheel into gear, substantially as and for the purposes herein set forth.

i l 2. The pinionD, provided with a plain face, E, outside the cogs, as described, and for theV purposes set rfortli. v

3. 4The band C, provided with right-angle ange e,

`in connection with the spnr-wheel'B, when constructed,secured, and operating` as and for the purposes wheelsG, in connection withfthe band C, :is and for the purposes set forth.

5. The levers H J and bear-ing I, when constructed, combined, and operating as and for the purposes set forth. 4

Witnesses: A JOHN SKINNER.

Taos. S. SPRAGUE, A M. STEWART.

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