US108069A - Improvement in harvesters - Google Patents

Description

new one l `To allfwlioin hul-y concer g 'Be it known thatl I, Ausunr H. WAGNER, of Chicago, iufthe countyof Cook and in the Statel of `Illinois,ha ve invented certain fnewand useful Imi provenients in Harvestersl;` and do hereby declare i that the following isa full, clear, andv exaetvdescriptionfthereoreferencebeing had to `the accompany ing drawingmaking a part 1otfthis speciication, in wwhichi Figure 1" is a plan view `.proved harvester;l i i Figures 2 and 3 are a front and au end elevation,` l respectively, of the same; l

Vof the upper side of my im- E'gure 4 is a central longitudinal section ofthe air-pump, on the line a; :vof` 'igrZ; i j Figure is an `elevation of the inner side oi the valve-box with `the cover removed, so as to show the jvalite, i y i Figure 6 `is a vertical central section nt' the same, with the coverl inV place; and y' 3 i Figure 7 `isja `verticallongitudinal. section of the operating cylinder and piston. 1 Letters of like .name andkind refer to like partsin `leach of the figures. c `My invention has for its object the employment of i .compressed air, orits equivalent, for the purpose of Ndriving fthe operating mechanism of harvestersor rnowersyand, to this end` L i `It consists in combining,lwith the driving-axlc'and cutter-har of a harvester 4or mower, air-compressin g t and. air-actuating devices, substantially as and for'the i i purpose hereinafter shown and set forth.`

4It further consists in theconstrnction of the valvei chamber and-'valve for controlling the ,admission of nir to the working cylinder, substantially asis hereinafter specified. c. l

It Afinally. consists in the generalv construction and arrangement of the air-compressing and operating mechanism, substantially asis hereinafter set forth.

A represents a rectangular metal frame, `having journaled upon itsuppersidean axle, B,i`upon each end of which is a traction-wheel, C, of usual form.

Secured to or upon `the `rear end of the'` frame A is un airpnrnp,fconsistingof a short cylinder, D, inclosed at either endby means of a head, E, andhavc inguponone sidea valvebox, F, lwhich communicates `withtheinterior of vsaid cylinder through. two open# `ings,j, situatednear the ends of said boxgand each closed by means ofi a springfz, opening outward from' the cylinder, i i i 3 An opening, d,`pass iug through .each head E, and closed uponthevinner side, hynleans of aspring valve,

@serves toadmit air to thecylin'der upon'either side `oi' the* piston or plunger @which plunger lis of usual .-iiiusniipfrynQwae'NER, or carene@ rtniiiiois.,r

c Landsmann@1os,o69,date 1oa0ber4,1870.

; IMPRoi/ EMNT IN `nARvE's-rsns.

i The Schedulereferred to in these-VI ihetters.Patent` and making part cf'the carne;v

construction, and is operated by means of a rod, H,

secured to its center, and passing outward through a stni'fingfbox, I, within the head E', its outer end being connected to or within a crank, B', upon the axle B, by means 'et' a connection, K, pivoted upon both yrod `and crank. f

VAs thus eonstructedthe motion `of the axle, caused by the revolution of the traction-wheels, will produce a reciprocating motion of `the pump-plunger, by which means air will be alternately vdrawn into the cylinder, through the openings in the heads, and the'n expelled therefrom into the valve-box. i

l'Secured to or upon the side of the frame. A is a cylindrical chamber or valve-box,'L,inclosed upon its inner end hy means of a head, L', and connected with, the valve-box F by means of a pipe, M. The aXleB passes through the center of the valve-box L, suita y tble stuiling-boxcsl being provided for its reception within both the closed end of saidbox and the head L',

N represents a cylinder, secured horizontally and at a rightangleto the line of 'draft upon the front end ofthe frame A, and containing a piston, O,r of usual form, which is connected with the inner -end et' the cutter-bar I), by means of a' connection, Q, pivotedto passing inward through the outer end of said box, so

as to admit air from the latter into said cylinder, for the purposeof actuating the piston.

y In order to control the admission of air to the cylinder, and cause it to enter each end thereof alternately, a circular disk, S, corresponding in size tothe inside of the-valve-box L, is 'fitted upon the axle B,

with itsI outerplanc face ,bearing upon the correspondbox L, arev provided in and through the disk or valve S, and so arranged `with relation to said opeuingso as to aiord communication -through the same andthe pipes R, with but one end of thecylinderat the same time. .y j y A suitable key, ttled within the surface of the axle, and loosely within t e seat of the valve S, secures `said axle and valve in position radially, so asto cause `them to revolve together, while allfowiug t'ie latterv i 2...,- v v I.

to-movc freely in a longitudinal direction upon the' der N is situated upon its frontside, midway between its ends, and is opened and closed by means of the piston 0, the length of.\vhich is just one-half the length of its stroke less one-half the width of said port.

As thus constructcd'the operation of this device is as follows:

Upon driving forward .the machine the motion of the traction -wheels is communicated through the 'crank B and connection K to the pump-plunger Gr, causing the same to force the air into the valve-box L, from which it is admitted alternately into opposite ends of the cylinder N, forcing thepiston O forward until it has passed the exhaust-port U, when the air escapes, afresh supply enters at the opposite end of the cylinder, and returns the piston to its first position.

By means of the connection Q, the reciprocating motion of tlic piston is communicated to the cutterhal', the force and velocity of which will be governed entirely by the rrelative diameters of the airpump and piston, and consequently the pressure of the air employed as a motive-power.

V represents the shoe ext-ending forward and upward in a curve from the heel ot' the finger-bar, and having pivoted within a suitable slot, passing vertically and longitudinally through the same, a roller, i

\V, as seen in figs. 1 and 2. The especial advantage obtained by the employnient of the roller and its arrangement within oi` up- -on the shoe is that, While'muc'n lesseniug the draft of the machine, it is thoroughly protected from. injury, and is consequently more durable,

It is believed that the employment of air, compressed by the motion ot the machine, for imparting motion tothe operatingr paris of a harvester or mower, will cause a saving in the power heretofore required, and materially increase its uniformity of motion and efficiency.

lIaving thus t'ully set forth the nature and merits of my invention, Y

What I claim asnew isf 1. In con'ihinatiou with the driving-axle and cutterbar of a harvester ormower, air-compressing and airactuating devices, substantially as and for the purpose specified. y

2.V The valve-box L, provided with the inductionport M and eduction-ports r 1', in combination with the rotary valve S and the axle B, substantially as and for the purpose shown and described.

' 3. The combination of the axle B, provided with the crank B', the cylinders D and N, the valve-boxes F and L, the valves z and S, the plunger G, the rods 1I and o, the connections K and Q,'and the piston O, substantially as and for the purpose shown. In testimony that I claim the foregoing, I have hereunto set my hand this 9th day of July, 1870.

AUSBVER'I H. WAGNER Witnesses:

CHAs. KAEsTNEn, Cuirs. D; FLANDERS.

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