USRE2647E - dunham - Google Patents

Description

y l v2 Sheets-She'tl. J. G. DUNHAM.

, Mower.

No. 2,647. Reissued June 11. 1867.

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PETER V. STAATS,- OF .RARI'IAN, NEW JERSEY, ASSIGrNEllll BY MESNE y ASSIGNMENTS OFJOHN G. DUNHAM.

Lettera .Patent No. 30,961, dated December 18, 1860; reissue .N u.` 2,647, dated June 11, 1867.

DIvIsioN A.

IMPROVEMENT IN lllIOVlINGf`` MACHINES.

ALL WHOM IT MAY CONCERN: Be it known that JOHN G. DUNHAM, of Raritan, in the county of Somerset, and State of New Jersey, did

invent certain new andl useful improvements-in yMowing Machines, of which the following is a full, clear, and I lexact description, reference being had to 'the-accompanying drawings which make part of this specification, and

in whichj I Figure 1 represents a plan or top vview of a mowing machine embracing said improvements. v

Figure 2 represents a view in elevation of the same as` seen from the rear, the black lines showing the cutting apparatus resting on level ground, while the red dotted lines show its outer or divider end raised by being drawn over a ridge or elevation, and the red full lines show it as lifted and folded against the frame for transportation. v

Figure 3 represents a similar view of one of the driving and main gear-wheels, together with one of the spur-wheels on the countexeshaft, as seen from the outer side.

Figure 4 represents a similar view of' the stationary metallic axle or journal which supports the -main frame, `and. upon which-the driving-wheels revolve. p

Figure 5 represents a similar view of the coupling-arm and sliding socket piece by which the finger-beam is attached to the main frame and raised or lowered'thereon.

Figure 6 represents the details of one of the backing ratchets. 4

Figure T represents a similar view of the divider, grain-wheel, and track clearer and IFigure 8 represents the details of the device by which the. front end of the drag-bar is connected to the'.

main frame.

In this instance a main frame, A Ai, is shown as mounted on two main driving and supporting wheels' B B, turning on journals C at each end of a stationary axle, C. The .axle is horizontal in its central portion, and bent up at right angles at each end in order to form shoulders or ilanges', C', to the inner side of which the side pieces A of the frame are bolted. The journals C project outward from the shoulders. The advantage of this mode of construction is thatl the frame is arranged between the wheels, by which meansit can be made' lighter, stronger, and less bulky. The frame is securely bolted to the axle, which prevents torsion of the frame, andbyv dropping the centralpart of the axle below the bend of the journals the 'crank-shaft can be arranged to pass over it directly froh ay countershat`t on one side of' the axle, and be supported on a bearing 'on-,the frame on the other end, thus securing a crank-shaft of the shortest` possible length, and avoiding the use of down-hangers. Furthermore, this mode of construction dispenses with the use of boxes for the bearings ofthe axle, and the frarnecan be set any distance desired either above or below the axle of the wheels by increasing the lengtlrof the bends 'or knees C', or hyiplacing blocks of varying thickness between the frame and axle.

The finger-beam D is made of metal, and securely fastened at its inner or heel end to the inner shoe E, which is formed with a wide rear part E, in which is an opening for a conical wheel, E", the journahof which rests in upwardly projecting ears c" cust upon the shoe E. The front of the shoe E is recessed down so that the finger-beam has a iirm shoulder against which to abut, while the front of thel shoe is narrowed as it projects forward, and terminates oy being hinged to the'wrist or swivcllingjoint G, into whichone end of the truss-rod (ir/"screws, while'the otner end screws into a wrist, G, hinged to a projection or bracketl H, pivoted at H to `the inner side of the mam frame so that it can be raised or lowered in the arc of a circle around its pivot, and be held in any desired position by a 'set-screw, Hm', which passes through a slot, H, inthe bracket H into the frame. A lug, e, projects from the inner shoe E, and is hinged between corresponding lugs on the lower end of a curved piece or coupling-arm, F, the upper end of which coupling-arm is correspondingly hinged to the lower end of an arm, F', snding vertically in a groove .in a vertically slotted down-hanger or bracket, G, bolted to the main frame, the arm F being raised or lowered and held at any desired elevation by means of a vertical slot,f, in the down-hanger, and a setscrew,f,.on the sliding-arm. By this means the inner or heel end of the linger-beam can be carried at any desired elevation above,` the' ground. It will be'observed that' both joints of the coupling-arin Fare parallel to each other-in the l,same Vertical plane and outside of the main fname-,which mode of construction secures a Enger-beam free `to ri-se: and fall at either end, and independently of the other while using a short coupling-arm. v

i To they outer end oi` the iinger-beam is'attached a shoe, I, the under side of which is recessed a little so las to keep it properly in place. A small runner, I', isfastencd to the under side of the finger-beam D, and kalso to the nnder side of theslioe I in front of` the point oi` the cutters c', This runner I' serves tosupport the outer end of the cutter-bar and cutter. l

l To thenpper side of the outer end of the nger-hearn'is attached a cappiece, I", which is fastenedto the top of the shoe I and finger-beam D byscrewsg g. The 4under side of the l,cap-piece I" is cast with a groove for two reasons: first, it makes it lighter.and second, it affords the requisite protection and space for the play of the conical wheel I'", whose journal I"" isI supported in the sides .of the cap-piece I", which has openings so that the 'journalof the wheel I' can be set up or down, andthus enable the ringer-beam and cutter to be adjusted to cut the grass at diiil'lerent heights from the ground." The journal of wheel I"' is provided with a head, g', and a nut, g", whereby it can be heldin diii'erent positions inthe openings in the sides 'of the cap.

vpiece I". The rear of the cap-piece I""has two parallel sockets fortll'e reception of clearing-arms gmg'",

which turn the grassrafter il; has been cut inwardly 'so` as to leave a clear space next to thc standing grass.

Each' driving-wheel .B carries a main gear-wheel, B', driving-a corresponding pinion, B", connected with a counter-shaft, J, by a backing ratchet,-lB"', which drives the gearing when moving forward, but allows it yto i turn loosely on the axle when backing. The counter-'shaft extends transverselynacross and beyond the frame,

(the.spuiwlieelsand ratchets being arranged lhetweendtlhe frame and`driving-wheels,) and carries (inside the frame) a bevel-wheel, J', driving-a corresponding pinion, J", 'on a crank-shaft, J'", passing over the bent axle parallel to the outer frame-piece A, andturninginfsuitable bearings'snpported by this timber,V

The cutters are reciprocated as nsual by a pitman, J""', connected to the crank J"".. A caster-wheel, M,

' supports the rear end of the fram-e, and a tongue is hinged kto the front end of the frame by which to dran; they machine. The heel of the linger-beam is kept from falling tco'low down, or from swinging under the frame, by a projection, K, on theunder sid/e of brace F, whichpr'oj'ection abnts against a shoulder, K', on the piece F'. The finger-beam, when folded up, as shown in full red lines in fig. 2, is held in thatJ position by a hook, M. l

The drag-bar G"' is slightly sprung by the folding of thc.beam, and thlis tends to uphold'the coupling-arm E, as shown in fig. i A i That is claimedherein as the-invention of ;JOHNG.1DUNHAM, `is-' 1.l The combination in a mowing machine of a stationary metallic aille, with the portion between the bearings oi' the wheels bent7 and a crank-shaft arranged transversely thereto, with the driving-gear arranged on one side'o'f the axle, and the crank and pitman onl the other. Y

2. The combination in a hinge-joint mowing machine oi-v two driving-wheels, a main frame located between the wheels, and extending lboth in front and rear of the main axle, with a hinged or limher tongue in front by which to draw the machine, and a caster-wheelto support the back end of the frame.`

3. Connecting a short laterally projecting finger-beam to the inner side of the main frame by a couplingi arm in the same vertical plane as the finger-beam, and having-two paralleljoints transverse to the beam whereby a. short coupling-arm can 'be used, and yet either end of the lcutting apparatus be free to rise or fall independent of the other. 4 l

4. The combination., ina mowing machine, of two main carrying-wheels, a main frame located between the wheels, and a laterally projecting hinged finger-beam having' two parallel joints in the coupling-arm, with a brace or drag-bar for the purpose of resisting the backward strain of the finger-beam, supported at. the 'upper end by means of thevmain frame in front of the inside carrying-wheel. A

5. The combination, with a short laterally projecting liexible ngerfbeam having two parallel joints in the coupling-arm, (at right 4angles to the heam,) of asupporting-wheel attached directlyto `each end of and in rear of the iinger-beam. i v l In testimony whereof I have lhereunto siibscribed my naine.

Y PETER v. sTAAT's. Witnesses JEREML'AH WHITENAGK, SAMUEL GANO, Jr.

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