US1388934A

US1388934A - Straddle-row cultivator

Info

Publication number: US1388934A
Application number: US24946A
Authority: US
Inventors: Samuel K Dennis
Original assignee: International Harverster Corp
Current assignee: Navistar Inc
Priority date: 1915-04-30
Filing date: 1915-04-30
Publication date: 1921-08-30
Anticipated expiration: 1938-08-30

Description

S. K. DENNIS. STRADDLE 'now CULTIVATOR.

APPLICATION FILED APR. 30, 1915.

1,3 ,934, Patented Aug. 30, 1921.

3 $HEETS-SHEET I.

Patented Aug. 30, 1921'.

3 SHEETS-SHEET 2' S. K. DENNIS.

STRADDLE ROW CULTIVATOR.

APPLICATION FILED APR.30. I915.

1,388,934. Patented Aug. 30, 1921 a swans-sues? 3.

17211672207; flwmwl K ezmz'pj SAMUEL xl DENNISJOF'UCHICAGO,ILLINOIS; TASSIGNOR; IBY' MEsNnlAssIeNMENTsj To INTERNATIONAL I nmvnsrrna company, 1A: CORPORATION or and simplify the operation and construction of such devices, particularly-the type of culin connection with a pivot pole; seat-guide cultivator a mounting for the beams where by they arecaused to move laterally in partivator shown in patent to Tinsman, No. 1,025,220, May 7, 1912. 1 c

In carrying out my invention I employ allel relation, and an improved connection between the beams and pivotpole'for inoving the former laterally when" the pole is angled to change the course of-the cultivator, said connection being adjustable so that Y Y the beams may bemoved independentlyfof the pole'and of each other-{ v One form which myinvention may assume is exemplified in the following description and illustrated in the accompanying drawin ,i'n wl1ich" at Figure 1 showsa vertical central sectional fview of: a "cultivator embodying my invention; d

Fig. :2 shows a fragmentary'view in plan of the improved oonnection employed between thep'ivot pole'and 'the beams a Fig. 3"shows a detached view in elevation of saidconnecting means?" V c Fig. t is a plan view of the cultivator em bodying my invention; and s Fig.- 5 isa plan view showing theytongue angled. j I f i Referring in detail to the drawing, it will be seen that I employ a cultivator comprising ground wheels 10, and a main frame 11, to which is pivoted at 12a pole 13.: The rear end of the pole h'as a sliding connection 14 with the main frame; and'a seat support 15 is pivotally and slidably carried upon the arched axle 16 of the ground wheels and has its forward end pivotally connected tothe rear end of-the ole by means offa vertically arranged pivot olt l7 passing through the pole andentering'a' pivot plate 18. This plate has upstanding ears -1 9,-to which the seatsupport is pivoted forlmovement in a miss ae j esmvwos; A v

Application filed A riieo, 1915. seriaina'ame.

NEW JERSEY;

Specification of letters Patent. P atentedilu g. 30, 192 1 -vertical plane, the latter movement of the seat support being desirable forfolding the seat over the pole. The'rear end of the '-sup port 15 carriesa seat member 20, which is adjustable are and aft in Beams 21, carrying shovels 22, or other earth working devices, are suspended at their for- "ward ends: from the frame of the/cultivator} 7 each bymeans of, a pendent bail-rod 23 carthe usual way.

ried for oscillating -movementin" bearings 24 arranged on the axle andforward end of the main frame. A horizontally arranged 'IEATENT ,orFICE crankrrod 25, pivotally' connected to the a wheel spindle and adjacent beam, transmits a push motlon to the beam and swings'freely about its pivots to permit lateral shifting of the beam, the bail-rod acting to hold the beam in fore and aft alinement.

The rear 2 end of the bail member 23 has a 'sli dable con-* nection with the beam so that said beam may be adjusted vertically by means of a lever 26 or other raising device. The tool carrying beams 21 at their rear ends, are suspended from the levers 26by' links 261. Theselinks are asnsual provided with operating handles and have pivotal connections at each end respectively with the; levers 26 and the the upper-ends of levers 26, and also-to permita longitudinal swinging motion, of levers 26 and links 261 will beseen that theib'eams2l will beheld -23, andwill alwaysvmaintain their parallel such'as to permit raising and lowering of the beams, and the operation of the pivot beams 21. "The pivotal connections are'arranged to permit the beams to swing laterally around the pivots between links 261 and j p when operated to lift or 'lower'th'e-beams 2 h I .i I s F-rom -the description thus far given .it l

in alinement bythe" pendent bail members am no jmaaer whattheir position of lateral adjustment maybe. The connections are-1 9 5 pole andse at guide is toi change the course of the cultiva'tor independent of the direction of travel of the-"draft animals.

lVith no con'nection between the movable pol'e'or seat support and the beams, it is apparent that the ultimate object ofangling the pole, which is to shift the ground tilling members laterally, will be accomplished indirectly and slowly that is to say, the frame of the cultivator willfirst shift its course and the 'bea mswill thereupon trail slowly in the direction of movement of the frame. Such an operation, obviously, is not sufiiciently positive and certain to afford an accurate control of the beams. I have, therefore, provided a simpleyoke connection between the pivot pole and seat support and the beams whereby, as the rear end of the pole isswung around to change the course of the machine,

- the beams will be positively and quickly moved in the same direction.

This connection comprises a yoke ncluding two members 27, having their outer-ends slidably and pivotally connected to the front pendent portions of the bail members 23 and projecting rearwardly and spannlng the pole, where their inner ends ,overlap and connect with the pivot-platej18 between the seat support and pole. Theconnection between the plate 18 and yoke is by means of a vertical stud 2S mountedupon-the forward end of the plate in front of the pivot bolt 17, and upon this stud is fitted a clip member 29, which clip member is connected, by means of a bolt 30, to the overlapping inner ends the yokemembers. The inner ends of the yoke members are looped above theIpivot bolt and are againconnected,

by means of an adjusting bolt'31 passing through suitable, openings or slots 32 formed in the ends of said oke members. a y

By suitable adjustment of the bolt 31 the lower outer ends of the yoke members may be moved together or apart,-s\v1ng1ng about the bolt 80, and in this way the relative distance between the members of the gang on which the yoke member is carried may be adjusted. The bolt 31 will also lock the yoke members so that, as they seat sup-port is moved to swing the pole from one side to the other,the yoke, being carried thereby, will act positively to shiftthe shovel beams bodily laterally'in rigid alinement. On ac count of the position occupied by the yoke member the beams will in reality be moved farther than the rear end of the pole. This follows from the fact that the stud member .28 which carries the yoke swings about the pivot bolt 17 and receives a greater movement when the seat is shifted than does the pivot itself.

Should ,it positive lateral shifting of the shovel beams,

it is only necessaiyfor the operator to reof the beams, it is only necessary for him to be desired to discontinue the lift- 116 yoke, freeing the 'clip member 29 I from the stud 28, and the desired adjustment is accomplished. Movementof the'pole will not then imparta positive; and direct movement of the yoke, the latter sliding freely upon the upper'surface of the pole. In this p'osition of the yoke it maybe used to take the place of the ordinary jockey arch to hold the beams infixed relation, or may,'as before i 7 indicated, be ii nlatched to permit free and independent swinging of the beams,

Enough of the possibleuses of my invention have been mentioned to indicate the importance thereof. *In the normal operation of the device with the yoke members :27

secured together at their upper ends, a lat' eral motion of beams 21'is effected by swinging the seat lever 15 due to pressure applied to the footrest 211 on one of the beams: The beams swing from the pivotal connections between levels 26 and links 261 and the bearings 24 of bails 23. The thrust bars 25 swing around theirpivotal connections with the frame of the machine at a. point (near the wheel axles. --The bails 23 are free to move longitudinallyin their bearingsiQeL to permit the horizontal arc motion ofythrust bars 25. 'The yoke members 27 may, without pivotal action, move later'allywith the tool beams 21 and .the adjoining ends of the seat lever and tongue, but the tool beams may be shifted laterally independently of motion of the seat lever and tongue,.in;which case yoke members 27f swing around bolts 30. This results'in one of the yoke members sliding upwardly, along. the forward depending arm of one of the bails 23 Vwhile the opposite yoke member. 27 moves: downwardly along the forward depending armof the remaining bail. Y

While I have shown and described butone form of my invention herein, it should be understood, nevertheless, that it is susceptible of modification and, therefore, many changes maybe resorted to in the construc-' tion and arrangement of the. several-parts without departing from the spirit thereof {as disclosed inthe apppended claims.

WhatI claim as; new is: I 1. In a wheeledcultivator, a frame,cultivator beams connected to the frame by laterally shiftable means including pendent members, a guiding member pivotally supported between itsends for lateral swing: ing movement on the frame, a pivot member on the forward end of the guiding. member, and a yoke supported on said pivot member and having its branches slidably connected to said pendent members. a

2. In awheeled cultivator,;a frame, 'cultivator beams connected to the frame by laterally shiftable means. including pendent members, a guiding member pivotally sup.- ported between its ends for lateral swinging movement on the frame, a plate on the 'forward end of said guiding member, provided members, a draft pole pivoted between its ends to the front of the frame and having its rear end supported for lateral movement on the frame, a guiding member pivotally supported on the frame to the rear of said pole, a plate connected to the forward end of the guiding member and connected to the rear end of said pole on a vertical pivot, and a yoke provided with a part pivotally mounted on said plate and having its branches slidably connected with said pend ent members.

4; In a wheeled cultivator, a frame, cultivator beams connected to the frame by lat- V erally shiftable means including pendent members, a draft pole pivoted between its ends to the front of the frame and having its rear end supported for lateral movement on the frame, a guiding member pivotally supported on the frame to the rear of said pole,

a plate to which theforward end of the guiding member iswhorizontally hinged and to which the rear end of the pole is connected on a vertical pivot, and a yoke provided with a clip engaging a vertical pin on.

said plate and having its branches slidably connected to said pendent members.

' 5. In awheeled cultivator,*a frame, cultivator beams connected to the frame by laterally shiftable means including pendent members supporting the front end of the beams, a rearwardly projecting guiding member supported between its ends for lat era-l swinging movemnt on the frame, a plate on the forward end of the guiding member provided with a vertical stud, a clip on said stud having a forwardly and downwardly inclined face, and a yoke pivoted on the inclined face of the stud. and having its" branches slidably connected tosaid pendent members.

In testimony whereof I aflix my signature, in the presence of two witnesses.

v SAMUEL K. DENNIS.

Witnesses: i

C. H. MANGOLD, EVAN EVANS.