US548878A - Mowing-machine - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1. 0 M J ARBOE MOWING MACHINE.

No. 548,878. Patented 008.V 29, 1895.

En v e UU Y Y wm/ um.

(No Model.) 2 sheetssheep 2.

o. M. JARBoE. Y MOWING MACHINE.

No. 548,878.. 4 Patented Oct. 29, 1895.

s I i I llmnl 27m/tena?? l Uwe-n M Jrae a www ANUREW a GRAHAM. Pno'lo-mnuwAsHlNTDMnQ Mines-ses: j'

Nrrnn STAT-ns1 PATENT rrrcn.

OWEN M. JARBOE, CARROLLTON, MISSOURI.

MOWlNC-lVlACHINE.`

SPECIFICATION forming part of Letters Patent N0. 548,878, dated October 29, 1895.

Application filed September 25, 1894. Serial No. 524,023. (No model.)

other, as at 5, to inverted-U shape, said U- To all whom it may concern:

Be it known that 1, OWEN M. JARBOE, of Carrollton, Carroll county, Missouri, have invented certain new and useful Improvements in Mowing-Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to mowing-machines; and my object is to produce a mowing-machine which is effective in operation and which may be adjusted to cut at varying heights.

A further object is to produce a mowingmachine which is exceedingly light, strong, durable, and inexpensive of construction.

With these objects i-n view the invention consists in certain novel and peculiar features of construction and combinations of parts, as will be hereinafter described and claimed.

In order that the invention may be fully understood, I will proceed to describe the same with reference to the accompanying drawings, in which- Figure l is a top plan` View, partly broken away, with the tongue removed, of a mowingmachine embodying my invention. Fig. 2 is a vertical longitudinal section of the same. Fig. 3 is an enlarged view of parts of the ma` chine which will be hereinafter described, and Figs. 4, 5, and 6.are also views of parts which will be hereinafter described.

Like reference-numerals denote corresponding parts in the several igures, in which- 1 designates the carrying-wheels, and 2 the axle thereof. Said carrying-wheels are mounted upon said axle in such manner that when the machine moves forward the axle and the cutting mechanism hereinafter to bedescribed are operated, and when moved rearwardly or backed the wheels turn loosely upon the axle without rotating the same.` The well-known pawlandratchet construction will be employed to accomplish this purpose; but as it forms no part of my invention it is not deemed necessary to illustrate the same in the accompanying drawings.

Arranged adjacent to each carrying-wheel is a vertical standard 3, said standards being mounted loosely upon the axle, and connecting said standards and arranged parallel with and above the axle 2 is a bar 4, and said bar is bent at a point nearer one end than the shaped portion or bend extending vertically upward. Connecting the standards 3 and arranged parallel with and below the axle 2 is a bar 6, and said bar is bent vertically downward at 7 to U shape, and said bent portion 7 is disposed oppositely to the bent portion 5 of the bar 4, thus forming a vertical space between said bars, the object of which will be hereinafter explained. to approximately semcircular form, as at 8, and is arranged horizontally in a plane slightly above the bar 4, and has its opposite ends connected by the T-couplings 9 with the short pipes 10the front ends of which engage apertures in the standards 3, which thus support said pipes.

' `Pipes or rods, each preferably in the form of two sections 11` and 12, connected by the T 13, extend divergently forward and downward from their rear ends, which are secured in the front ends of the apertures of the standards 3,'engaged by the front-ends of the pipes 10, and the front ends of said pipes are detachably but firmly connected to the sickle- A pipe or rod is bent y guards 14. Said pipes are braced and stiftened by the pipes or rods 15, which are secured at their rear endsin vthe apertures near the lower ends of the standards 3 and have their front ends engaging the T-couplings 13 and are also braced by the pipes 16, which have their front ends engaging the apertures of the standards 3, engaged by the rear ends of the pipes 15, and their rear ends engaging the T-eouplings 9..-

Extending transversely of the machine andv braced by means of the longitudinally-extending and parallel pipes 20, which are secured at their frontends in any suitable manner to the cross-bar 6 and at their rear ends to the T-couplings 2l, carried by the pipe 8. The frame is also braced longitudinally by the side bars 22, which are secured at their front IOC ends to the sickle-frames 14, and at their rear ends are mounted loosely upon the projecting end of the axle and are retained in such position by the ends 23 engaging said projecting ends of the axle.

24 designates casters or small supportingwheels for the front end of the machine, and mounted loosely upon cylindrical pins 25, projecting inwardly from said supporting-wheels,-

are L-shaped levers 26, which are provided at their angle with bearingapertures 27, in which. are loosely mounted-.cylindrical pins 28, projecting outwardly from the sickleguards 14. The bearing-apertures 27 are greater diametrically than said pins to allow of a limited movement of the pins within said openings when the front end ofthe machine isvertically adjusted, as will be hereinafter more fully explained.

29 designates bell-crank levers, which are pivoted `at 30- to the diverging pipes11, and the outwardly-projecting arms29 of saidlevers are pivotally connectedthrough the medium of the link-rods 31 with` the upper ends of the L-shaped levers 26, and the otherarms of said levers are pivotally connected through the medium of the 4link-rods 32with.the griplevers-33, which are pivotally mounted upon the bar 4 at opposite sides of the tongue34, whichis pivotally mounted or hinged at 35 to saidbar 4, and is braced from-slateral movenient by the forwardly-converging rods or bars 36, said rods or bars being secured at their rear ends to the bar 4 in any suitable manner. be provided with spring-actuated dogs and toothed segments `for engagement with said dogs, so as to lock said levers and therefore.

the front end of the machine at any point in their adjustment; but as such construction is old and well known in the art it isnot necessary to describe the saine in this connection.

Thesickle-guards 14 and 19 are-bifurcated in their front ends to form the parallel' arms 37, and fitting snugly between said arms and one upon the other are the cutting-blades 38, which are ofthe construction shown-or of any other suitable or preferred construction, and projecting upwardly from rone of said cutting-blades and through the transverse slot 39in the upper arm of the middle sickle-guard is a pin 40, and a similar pin 41 dependsvertically from the other cuttingvbladeand also extends through a transverse slot 39 in. the lower armof the said guard.

Returningfnow to the power mechanism, 42 designatesa sprocket-wheel which is mounted loosely upon the shaft2 and-occupies the ver-` ticalv space between thebent portions 5 and 7 of the cross-bars 4 and 6, and said sprocketwheel is provided or formed at one side with aclutch-face 43 andat the opposite sidewith an ann ularly-grooved collar 44,1and a lever 45, pivoted. to. a lug 46, projecting from the bent portion of the bar 4, loosely engages the groove of said collar, so that the clutch-faceof said sprocket-wheel maybe thrown into or out-of These grip-levers 1 in practice willv engagement with the clutch-face collar 47, mounted rigidly `upon the axle. Extending transversely and journaled in bearings carried by the parallel pipes 2O is a shaft 48, and mounted upon one end of the shaft is a sprocket-wheel 49, which is connected with the sprocket-wheel 42 by the chain 50. A second sprocket-wheel 5l, mounted upon said shaft,

isoperatively connected by the chain 52 with,

the sprocket-wheel 53, carried by the shaft 54, also journaled in bearings carried by said pipes. 20, and mounted rigidly and centrally upon the shaft 54 is a cam-wheel 55.

Pivotally mounted upon a bolt 56, projecting through alongitudinal slot 57 in the bracebar 18 and resting uponthe interposedwasher or spacing-block 58,is a lever 59, which -eX- tends for a suitable distance parallel with the brace-bar 18. Therear portion ofv this :lever extends `horizontally;between the cross-bar. 6 andthe axle 2 andrearward of said cross-bar andaxle is bent to form the upwardly-projecting and bifurcated rear endGO, which embraces the cam-wheel 55 vertically below its center. In advance of its pivotal point said lever is bent downwardly at 6lr through the transverse slot-.62 inthe brace-bar 18, and.

thence extendsto a point below the middle guardy 19 and lpivotally engages the depending pin 4l. Mounted pivotally, also, upon said bolt 56and uponl the collar or-spacingblock 63, interposed between the same and the lever-59, is a lever 64, which extendsapproximately parallel `for a suitable distance with theadjacent portions of the brace-bar 18 and the lever 59. The rear portion of this lever extends horizontally between the-upper bar 4 and the axle 2 andis bent to form the downwardly-projectingV and bifurcated end 65, which embracesthe cam -vwheel 55 at a point vertically above its center. portion of said .lever is :bent over the middle guard 19 and pivotally engages the upwardlyprojecting vpin-40. The levers 59 and -64 at their point of connection-with the-pins 41-and ICO The front IIO 40, respectively, are longitudinally slotted, so

as to permit of-a lateral operation of said levers.

Mounted upon a springprojecting from the rear endof the tongue is the seat 66, whichis within convenient reachof the levers 33iand the lever 45.

Asthe machineis drawn over the ground,

the rotation-of the wheels 1 and theaxle 2,

are operated in the direction required, and this operation causes the L-shaped. levers 26 to pivotally operate upon the pins 25 of the front supporting-wheels 24, and thereby raise or lower the pins 28 and the front end of the machine, from which said pins project, as will be understood.

From the above description it will be apparent that I have produced a mowing-machine which is of light draft, under perfect control of an operator, and is simple, strong, and inexpensive of construction and effective in operation. Y'

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

1. In a mowing machine, the combination with a pair of wheels, an axle connecting the same and a framework mounted upon the axle, and consisting of the vertical standards 3, the transverse bars 4 and 6, respectively, connecting said standards above and below the axle, the rearwardly-projecting semi-cir cular portion, the forwardly-diverging por tion; both carried by said standards and composed of hollow pipes or rods, shoes mounted upon the front ends of the diverging portion, and a hollow pipe-connecting the same and carrying at its middle atransversely-slotted shoe, of a pair of cutter-bars mounted in said shoes and provided with pins projecting through said slots, a pair of levers pivoted near their middle in a longitudinal slot in a part of the framework, and having their front ends pivoted to the said pins and their rear ends bifurcated, and a rotating cam-wheel mounted in the framework and engaging the bifurcated rear ends of said levers, substantially as set forth.

2. In a mowing machine, the combination with a pair of wheels, an axle connecting the same, and a framework mounted upon the` axle, and consisting of the vertical standards 3, the' transverse bars 4 and 6, respectively, connecting said standards above and below the axle, and bent oppositely to form a vertical elongated space, the rearwardly-projecting semi-circular portion, the forwardly-diverging portion; both carried by said standards and composed of hollow pipes or rods, shoes mounted upon the front ends of the diverging portion, and a hollow pipe connecting the same and carrying at its middle a transversely slotted shoe, of a pair of cutter-bars mounted in said shoes and provided with pins projecting through said slots, a pair of levers pivoted near their middle in a longitudinal slot in a part of the framework and having their front ends pivoted to the said pins and their rear ends bifurcated, a sprocket-wheel mounted loosely on the axle within the said elongated space, and provided with a clutchface and with an operating lever, a clutchsection rigidly mounted upon the shaft and opposing the said clutch-face, a second shaft mounted in the rear end of the framework and provided with a small and a large sprocketwheel, a chain connecting thesmall-one with the sprocket-wheel of the axle, a third shaft mounted in the framework and provided with a sprocket-wheel and a cam-wheel, which engages the bifurcated ends of the levers, and a chain connecting the sprocket-wheel of the last-mentioned shaft with the large sprockctwheel of the shaft to the rear, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

OWEN M. JARBOE. Witnesses:

J. G.HoUsToN, JAMES MCPHETRIDGE.

Images