USRE2900E - Improvement in cross-heads fob blowers - Google Patents

Description

@nitrate-,tis stmt Lenen Pawn: N. 56,614, zaad Juzyes, ieee; am Namco, amd Mart-1. 17, 136s..y

mrac'vennn'rm caossaisine'V roe BLowBns.

iiilge .Srlgetnlz referrer in ilu ligne liters mimi ant making part utili: same'.

'ro ALL ivHoM rein-AY GONCEnN.

13e it knoivnA that aye, P. H..Roors and F. M. ROOTS, of Connersville,-Fayette county, IndianaJ have invented a neit andimprovedliston for Rotary Blowers; andA we do hereby declare that the following i-s n full, clear, and exact description thereof, which will enable others skilled in the arto make .and use the same,

reference being had ,tol the accompanying drawing, forming part of this specification, in which- Figure 1 represents a transverse section ofthis invsntiomthe line x x, fig. 2, indicating the'plane of section. "v Figure 2 is a longitudinal vertical section ofthe same, 'taken in the plane indicated by the line y ,'y, Eg. 1.

Figure 3 is a transverse section of a pistonlwith threev conyex tud' concave portions. i Similar letters ef reference indica-te like parte.

This invention relates to a piston for rotary blowers, constructed of two or more metallic cross-heads fast- .A .ened on a suitable shaftand made muera-polygonal, or in' any otherdesirable for'mror shape, in combination with wooden lags or strips, which arehl'ted to said cross-heads, and then dreesed to the proper shape, in such .n.manner that a piston is obtained whighgen be oonstljnctedness cost for lrxtefinand labor, and with greater accuracy than nistnrof theordinarmninctinn.

A represents two cross-heads, made of cost iron, brass, o1' any other suitable material, in the form best 4 shown in :iig.-l ofthe drawing, although it must be remarked that the heads, instead of being hexagonal, might v be sqnarqpolygonal, round, or -of any other suitable form or shape, according to the size of the piston to be' made. Thosecross-head's are firmly keyed or otherwise secured to the shaft B, at the proper distance apart,

and then they are covered-by wooden lags or strips' C, which are fastened tojaid eross-headsf'by menns'of b olts or screws,A or in any other'suitable manner. f desired, suitable sleeves or thimbles D may he placed on the shaft, between the cross-heads, to steady the same and keep them at the proper dis-tance apart.. The lags or strips C, having been secured to the crosshoads'A are dressed to the required shape by planesfpropcrly shaped, v

or by any other suitable means.

In this manner pistons for rotary blowers can be consti-acted at a lcomparatively smll 'expenseof labor and material, and better adapted' fo the purposes intended than if made entirely of metal. Our pistons are tight, durable, easily worked out tothepropsr shape, and readily repaired if'they wear out.

- 'purpose sei'. forth.

What we claim as nemend desire to`lccure by Letters Patent, is.

A piston, constructed of crossheads A, fastened to'a shaft, B, in combination vrith'wooden lags oi' pieces C, which compose the covering of the piston, and are secured -to the cross-heads, substantially as and for the P. H. noo'is,4 F. Mv. Rooms.

Witnesses for IL ROOTS:

WM. F. MeNsMsnA, ALEX. F. Bananas.

Witnesses:

Geo. W. GRIFFIN, ALEXANDBB Psnxes..

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