US80376A - Cyrus b - Google Patents

Description

vGYRUS B. WHITE, OF PORT RICHMOND, NEW YORK.

Letters Patent No. 80,376, dated July 28, 1868.

IMPROVEMENT IN GIB AND SELF-OILBR.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, CYRUS B. WHITE, of Port Richmond, in the county of Richmond, and State of New York, have invented a new and improved Gib and Self-Oiler; and I'do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification. ,i

This invention relates to a. new and useful improvement in self-lubricating gibs for steam-engines, and is an improvement on a device for that purpose, patented by William A. Devon, November 19, 1867.

The object of the invention is to avoid the waste of oil caused by the motion of the cross-head, and, while etlecting this end, to obtain a perfect or reliable bearing,- at all times, of the friction-rolleragainst the guide.

In the accompanying sheet of drawings- Figure lis a front View of my invention.

Figure 2, a side sectional view of the same.

Figure 3, a front view of' the same, thefriction-plate being removed.

Figure 4, a detachable view of the frietiomroller.

Similar letters of reference indicate corresponding parts.

The gib, as in the original patent of Devon, is composed of two parts; A and B, the former, A, being the main portion, and the latter, B, a friction-plate, made of brass, the plate B being provided at each side with two plates or slides, a a, which w-ork in-grooves in the sides or edges of thopart A, and retain the friction-plate in place. v

On the upper end of the part A. there is an oil-cup, C, provided with a door or flap, b, at its upper. end. This oil-cup is divided into two compartments, c d, by a partition-plate', e, which may be fixed or cast with the cup, or made separately from it, and arranged to slide in and out. The compartment c is the oil-chamber, and is supplied with oil through the door or Hap b,y as will be understood by referring to fig. 2. Y

D represents a friction-roller, .the periphery of which is made concave, as shown clearly in fig. 4. This roller has its bearings in slides ff, which are fitted in grooves g g, 'made in the inner` surfaces of the sides of the compartment d, said slides being connected by a cross-bar, 7L. These slides are allowed tewerk or move` freely in the grooves g g, and a. spring, z, which is attached to the partition-plate e, bears against the cross-bar t of the slidesff, nnd'has a tendency to keep the roller D in contact with the slide o r guide against which the cross-head works, a hole or slot being made in plate for the roller D to pass through.

E represents a wick, one end olf which is attached to the bottom ofthe compartment d, and extends over a rod, j, in the upper .part of el, and thence through a slot, lain the partition-plate c, and extends down-into the compartment c, below the surface of the oil therein. The wick E is .kept in contact with the inner side of theroller D, and by capillary attraction supplies the roller D with a suiiiciency of oil to insure proper lubrication, the groove in the periphery of roller D serving as an oil-chamber. Y

`In the working ofthe cross-head, no oil can escape from the compartment c, and as no oil is allowed in (Z, of course none can escape around the roller D, through the openings in A and B, through which the roller works. This is the great dihculty attending the original invention'of Devon. The cup C has no partition-` plate, e, the oil beingunderneath the roller D, and escaping in greater or less quantities around the roller, and 5. also through slots in the sides ofthe cup C, which slots extend entirely through the sides of the cup, in'whicl'iV slots the slides of the roller work. V

Besides this diliiculty of the escape and waste of oil, the slots in thesides of the cup frequently become choked up with einders, ice,`and filth, leaving no play for the roller D. These contingencies are fully ohviated by my improvement, as the'slides ff work in grooves in the inner surfaces of the compartment d, and cannot become obstructed or iilled with cinders ice or filth and the oil bein" confined in the com art-mente none a i a c, Y P s being riear the roller, or allowed to come'in contact with the same, except what is supplied toit b v wick.E,`no oil can escape or be wasted by the reciprocating movement of the cross-head and gib.

I do not claim the frietion-p1ate B, roller D, and supply-wick E, for they have been previously used, and are now used in the Devon patent. 4

Having described my invention, what I claim as new, and desire to secure by Letters Patent, s

1 The partition-plete e in the cup C, for the purpose of separating the oii'from the roller D, and preventing the former being discharged from the cup under therreeiproating motion of the cross-head and gib.

2. In combination with the above, I claim the roller-slidefh, arranged in grooves g, in'the'sides of the compartment el, substantially as described, and fertile purpose set forth.Y A

3. The combination of the roller D, wick E, and the/cup C, divided into two compartments by the'partition plete e, substantially as and for the purpose specified.

CYRUS B. `WHITE.

Witnesses:

WM. F. MeNIMARA, J. M. COVINGTON.

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