US1022891A - Planter. - Google Patents

Description

W. SOBEY.

PLANTER.

APPLICATION FILED SEPT. 10, 1909.

Patented A r. 9, 1912.

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Patented Apr. 9, 1912.

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W'. SOBEY.

PLANTER.

APPLIOATION FILED SEPT. 10; 1909 Patented Apr. 9, 1912.

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W. SOBEY.

PLANTER.

APPLIOATIONV FILED SEPT. 10, 1909.

Patented Apr; 9, 1912.

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UNITED STATES PATENT OFFICE.

WILLIAM SOBEY, OF RACINE, WISCONSIN, ASSIGNOR TO J. I. CASE PLOW WORKS, OF RACINE, WISCONSIN, A CORPORATION.

PLANTER.

Specification of Letters Patent.

Application filed September 10, 1909.

Patented Apr. 9, 1912.

Serial No. 517,113.

planters such as set forth in United States Letters Patent No. 843,500 issued to J. I. Case Plow Works, assignee, February 5, 1.907 and upon which the present invention is an improvement.

The object of the present invention is to strengthen, simplify and improve the construction set forth in the prior patent referred to and the invention consists in the features of improvement hereinafter set forth, illustrated in the accompanying drawings and more particularly pointed out in the appended claims.

' In the drawings, Figure 1 is a view in side elevation of the improved planter. Fig. 2 is a partial view in longitudinal section thereof. Fig. 3 is a plan view with the seed hopper, operators seat and bearing wheels omitted. Fig. 4 is a rear view of the wheel axle with parts shown in section. Fig.5 is a detail section on the line 5-5 of Fig. 3.

- Fig. 6 is a detail view of a part of the shifter mechanism. Fig. 7 is a section on the line 7-7 of Fig. 6. Fig. 7 is a detail view of parts shown in Figs. 6 and 7. Fig. 8 is a detail view of the drive mechanism for the seed-plates with parts shown in section. Figs. 9 and 10 are detail views of the guidebox for the standard of the furrow-opener with parts shown in section.

The supporting wheels 1 for the machine are connected to the drive axle 2, so that the latter rotates with the wheels. The frame of the machine comprises inner and outer side-bars formed of wrought iron or steel and arranged on edge as shown below the axle 2. The inner side-bars 3 are preferably constructed of a single piece shaped to form a loop, as shown, so that the rear end of the loop forms a cross-bar 4 between the rear ends of the inner side-bars 3. The side-bars 3 are parallel throughout the greater portion of their length and at their forward ends converge inwardly and terminate in parallel portions 3 which are arranged, on opposite sides of the draft tongue 5 and are secured thereto by bolts 6. Bearing-boxes 7 within which the wheel axle 2 is'journaled, are provided at their ends with downwardlyextending lugs 8 provided with notches or seats 9 for engaging the inner and outer side- bars 3 and 10 to which the lugs are connected by bolts 11. The bearing-boxes 7 are connected to the rear ends of the outer sidebars 10 and the latter extend forwardly therefrom in parallel relation with the inner side-bars 3. The forward ends of the outer side-bars converge inwardly and are provided with parallel portions 10 which over lap the'parallel portions 3 of the inner side'- bars and are secured thereto by a pair of bolts 12. The rearmost bolt 6 also extends through the forward ends of the outer side-.

bar portions 10, so that the latter are connected to the rear end of the draft tongue 5. The converging portions of the outer sidebars 10 are provided with short parts 10 which are arranged adjacent and parallel to the front ends of the parallel side-bars 3 and are spaced apart therefrom to receive the forward ends of the drag-bars 13 that are pivotally connected to the inner and outer side-bars by bolts 14. These drag-bars carry the covering shovels 15 upon vertical standards 16. A seat-post 17 is secured to the rear cross-bar 4 by a bolt 18 and carries an operators seat 19. The drag-bars 13 are connected by a cross-bar 20 having extended pieces 21 which form foot-rests. The frame is held against longitudinal movement on the wheel-axle by a pin 22 that extends through the wheel-axle and is arranged to engage the outer end of one of the bearing boxes 7 and a clutch sleeve 23 which is mounted on the shaft and aflixed thereto by a pin 24: and arranged to engage the inner end of the bearing-box 7 (see Fig. 4).

At the forward part of the machine and in front of the seed mechanism, is arranged a suitable furrow-opening device, which is preferably in the form of a double mold board or middle-burster plow 25 and which forms the trench or furrow in which the seed is planted. The furrow-opener orplow is secured to the lower end-of a vertical stand ard 26 which extends upwardly'betwee'n the front parallel end portions 3 and 10 of the inner and outer side- bars 3 and 10. A guide-box is formed to receive the standard 26 formed, as shown in detail in Figs. 9 and 10, by a. pair of wrought metal plates 27 which are arranged between the front parallel portions 3 and 10 and are secured thereto by the bolts 12. Thin bars 28 are interposed between the end portions 3 and 10 of the side-bars, and the plates 27 are spaced apart but snugly secured in position against the end portions 3 by spacing sleeves 29 on the bolts 12. The plates 27 extend upwardly some distance above the side-bars and downwardly just below the same. These upper and lower extending portions are bent inwardly toward each other and the plates are c0nnect ed at their corners by a set of tie bolts 30 having spacing sleeves 31 thereon. The spacing sleeves 31 at the upper, front corner of the guide-box and at the lower rear corner thereof are provided with guide-rollers 32 that engage respectively with the front and rear edges of the standard 26. Pressure upon the plow 25 at the lower end of the standard, forces the lower portion of the standard rearwardly against the lower guide-roller and its upper portion forwardly against the upper, front guide-roller, so that the standard is rigidly and securely held against movement in horizontal direction but, at the same time, can be readily shifted by the operator in vertical direction when desired. The guide-box is braced by two sets of brace-bars 33 and 34 extending upwardly from the frame to the upper por tion thereof. The front inclined bracebars 33 overlap the front upper corners of the plate 27 and engage the ends of the upper, front bolt 30. The brace-bars are forwardly and downwardly inclined from the upper front corner of the guide-box and their front ends overlap the front parallel portion 3 of the side-bars and are secured thereto and to the tongue by the center bolt 6. The brace-bars 34 overlap the upper, rear corner of the guide-box and engage the ends of the upper rear bolt 30 and are rearwardly and downwardly inclined and overlap the inner faces of the side-bars 3 and are secured thereto by bolts 35, as shown in Fig. 5. The construction forms a very rigid guide-box for the vertical plow standard 26 which is subjected to great strain during the operation of the machine. The front end of the narrow bars 28 terminate in depending lugs 36 (see Figs. 1 and 2) and a cross-bolt 37 extends through these lugs. The overlapped, rear end of a strap 38 engages the bolt 37 which extends from side to side just below the lower face of the drafttongue 5. This strap engages the lower face of the draft tongue, and a vertical bolt 39 extends through the tongue and through the rear, overlapped portion of the strap 38 in front of the bolt 37. The forward end of the strap 38 is connected to the tongue by a pair of vertical bolts 40. The lower ends of these bolts also engage a clevis strap 41, so arranged that the lower extended end of the front bolt 40 serves as a hitch for the equaliZer or draft-bar of the team. By means of the improved construction set forth, the plates 27 which carry the guide rollers 32 for the standard 26, is securely connected to the frame and to the draft tongue.

The seed-box or hopper 42 is provided with a suitable bottom 43 within which is mounted a horizontal beveled gear 45 which drives a seed-plate 44 of any suitable construction. Interchangeable seed mechanism for planting seeds of different kinds may be arranged in a well-known manner within the seed-box bottom. The seed-box bottom 43 is fixed at its sides to a pair of brackets 46 that are secured to the rear ends of a pair of bars 47 by bolts 48. The forward ends of these bars converge inwardly and pivotally engage the ends of the upper, rear bolt 30 of the standard guide-box.

The brackets 46 are provided with depending lugs within which is journaled a countershaft 49. A gear, pinned to one end of this shaft, is provided with a beveled tooth portion 50 that meshes with the beveled gear 45 of the seed-box and with a spur-tooth portion, 51 which meshes with the teeth of a gear 52 on the drive-axle 2. A pair of depending lugs 53, preferably formed of wrought metal plates, are secured to the brackets 46 and to the ends of the bars 47 by the bolt 48 and extend downwardly therefrom below the brackets. These depending lugs or plates 53 rest upon a pair of bearing sleeves or brackets 54 that are secured to the inner side-bars 3. The depending lugs or plates 53 also snugly fit between a pair of upstanding lugs 55 on the brackets 54 to thereby hold the seed-box in position. During the operation of the machine, the gear 51 always remains in mesh with the gear 52 upon the wheel axle, but if desired, the seed-box and the bars 47 may be swung upwardly about the bolt 30 to which the bars 47 are pivoted, and the seed box may be thus shifted into a position in which the seed-plates can be readily changed. A sleeve 56 is loosely mounted on the counter-shaft 49 and a seed-delivery chute 57 (see Fig. 2) is connected to a depending lug 58 on the sleeve in position to receive the seed discharged from the hopper 42 by the operation of the seed-plate.

A rock-shaft 59 is journaled in the hearing sleeves or brackets 54, which, as stated,

are fixed to the inner side-bars 3. One end of the shaft is extended and is journaled in a bracket 60 fixed to one of the outer sidebars 10. This bracket is provided with a toothed segment 61, and a shift-lever 62 fixed to the end of the shaft is provided with a locking dog 63 arranged to engage the teeth of the segment 61 and hold the shift-lever and rock-shaft in any desired position. The lever 62 is provided on its end with a pivoted trip 64 connected as usual to the dog 63 by ,a rod 65.

connected by a double liiik 67 to the upper end of the plow standard 26 by a bolt 68. The standard is preferably formed of two pieces connected together as shown, and the double link 67 extends between the two parts of the standard. The upper end of the standard is provided with a series of holes 69 to receive the bolt 68, so that the connection between the standard and the link 67 can be adjusted. The rock-arm 66 and link 67 serve to raise and lower the plow standard and furrow-opening plow when the lever 62 is shifted by the operator. The adjust ment between the link 67 and the standard permits the adjustment of the furrowopening plow in any desired relation to .the shift mechanism which raises and lowers it from and to working position.

The lower end of the delivery chute 57 is provided with a telescopic section 70 which is adjustably connected by a bar 71 to a rearwardly projecting part 72 on the lower end of the plow standard. The bar 71 carries a small supplemental furrow-opener 7 3 immediately in front of the lower end of the seed delivery chute. This supplemental furrowopener'and the telescopic portion of the seed delivery chute are shifted to and from working position with the plow standard 26.

The shifter rock-shaft 59 is provided adjacent its ends with a pair of arms 74 connected thereto by bolts 75. The ends of these arms are connected by links 76 to the ends of a pair of arms 77 that pivotally engage the bolts 14 which serves to connect the dragbars 13 to the frame. The arms 77 are hookshaped and have inwardly projecting por-.

tions 78 at their lower ends which extend beneath the drag-bars 13 to thereby raise and lower the drag-bars as the shaft 59 is shifted or oscillated by the lever 62. This one-way connection between the arms 77 and the drag-bars permit the up and down movement of the drag-bars independent of the shift mechanism but, when the latter is operated, the drag-bars and the covering devices carried thereby are raised and lowered.

To adjust the position of the drag-bars relatively to the shift mechanism, or to vary the point at which they are raised by the operation of the shift mechanism, the links 76 are adjustably connected to the arms 74. For this purpose, the arms 74 are provided with transverse slots 79 through which bolts 80 extend and the links 76 are arranged to pivotally engage washers 81 mounted on the bolts 80. The washers 80 have conical inner portions which fit within elongated seats 82 formed in the arms 74 about the slots 79. The washers and the seats 82 are provided with teeth 88, so that the washers and the ends of the links 76 are securely held in adjusted position. Byloosening the nuts on the bolts 80, the washers and the ends of the links 76 can be adjusted back and forth upon the ends of the arms 74 to thereby vary the point at which the drag-bars are lifted during the operation of the shift mechanism.

The drive gear 52 on the wheel axle is loosely mounted thereon, and. the central.

part of the gear is provided with a depressed portion having a series of teeth arranged to engage the teeth of the clutch-sleeve 23 that is fixed to the wheel-axle. A spring 84 coiled about the wheel axle, extends between the hub of the gear 52 and one of the bearing sleeves and serves to hold the gear normally in engagement with the clutch sleeve 28. The other bearing sleeve 7 adjacent the gear 52, is provided with a pair of forwardly projecting lugs 85 between which a shifterarm 86 is pivoted upon a bolt 87. The rear end of the shifterarm is forked to form a pair of curved cam arms 88 which extend on opposite-sides of the clutch sleeve 23 and engage the recessed face of the gear 52. The forward end of the shifter-arm is arranged to be engaged by a cam 89 on the shifter rock-shaft 59 so as to be operated thereby when the shift mechanism raises the furrowopener and covering shovels and so shift the gear 52 against the tension of the spring 84 out of engagement with the clutch sleeve 23. hen the shift mechanism is again operated to lower the furrow-opener and covering devices to working position, the spring 84 will restore the gear 52 into engagement with the clutch sleeve. This shift of the gear 52 into and out of engagement with the clutch sleeve 23 is insuflicient to disengage it from the spur-toothed portion 51 of the gear on the counter-shaft 49.

To vary the point at which the shifter arm 86 is moved to throw the seed mechanism into and out of operation, the'cam 89 is adjustably mounted upon the rock-shaft 59. For this purpose, it is adjustably mounted upon the edge. of a segment 90 which is formed in piece with one of the arms 74 on the rock-shaft 59. This segment is provided wit-h a projecting portion 91 which fits within a seat on the cam 89 and the latter is adjustably connected to the segment by a bolt 92 which extends through a slot 93 in the segment.

The cam 89 and segment; 90 have interlockare all independently adjustable. This is desirable in machines of this type which are often used to break out the old furrows and at the same time plant the seed, and the seed may be planted in furrows formed by breaking out the old hills or in the trenches between the hills, so that the working depth of the furrow-opening plow and of the coverers vary greatly under the different conditions in which the machine is operated. But by means of the adjustable connections between the shift mechanism and the different parts, the shift-lever can be maintained within easy reach of the operator and the furrow-opening plow and covering shovels can be set to work at any desired depth while the point at which the seed mechanism is thrown into and out of operation can be adjusted to suit these different conditions.

A bracket 95 is secured to the rear bar 4 of the frame, and carries a pivoted, springheld latch 95 which is arranged to engage the cross-bar 20 and hold the drag-bars 13 'and covering devices carried thereby in working position. A link 96 connects this latch to a link 97 which in turn is connected to an arm 98 fixed to the shifter rock-shaft 59, so that the latch is withdrawn from its position above the bar 20 when the shift mechanism is operated to thereby permit the hooked arms 77 to raise the drag-bars 13 and covering devices carried thereby. The link 97 is formed of two adjustable sections, one screw-threaded in the other, so that the time at which the latch 95 is re leased can be adjusted relatively to the throw of the shift mechanism. If desired, the latch 95 can be held out of operation by a catch 99 on the bracket 94. A bar 100 is held in place between the bracket 95 and the rear bar 4 and has depending end portions 101 arranged adjacent the drag-bars 18 to hold the drag-bars and covering devices carried thereby against lateral movement when the latter are in their lower, working position.

It is obvious that changes can be made in the details of construction without departure from the essentials of the invention as defined in the claims.

I claim as my invention 1- 1. In planters, the combination with a supporting wheel axle and a draft tongue, of a frame comprising side bars having converging portions and parallel forward ends secured to the sides of said tongue, a guide box secured to the parallel forward ends of said side bars behind the rear end of said tongue, a furrow opener having a standard vertically shiftable through said guide box, and a clevis bar secured to the underside of said tongue and to the forward ends of said side bars at a point in front of said guide box, substantially as described.

2. In planters, the combination with a supporting wheel axle and a draft tongue, of a frame comprising side bars havin converging portions and parallel forward. ends secured to the sides of said tongue, a guide box secured to the parallel forward ends of said side bars behind the rear end of said tongue, a furrow opener having a standard vertically shiftable through said guide box, depending lugs connected to the forward ends of said side bars in front of said guide box, a transverse bolt extending below said tongue and between said lugs, and a clevis bar connected to the under side of said tongue and to said bolt, substantially as described.

3. In planters, the combination with a supporting wheel axle, a draft tongue, a frame comprising inner and outer side bars having separated rear ends and converging portions and overlapped parallel forward ends secured to the sides of said tongue, bearing boxes for said Wheel axle secured to the separated rear ends of said side bars, a guide box arranged between and secured to the parallel forward ends of said side bars behind the rear end of said tongue, a furrow opener having a vertical standard shiftable through said guide box, straps secured to the forward ends of said side bars having integral depending lugs in front of said guide box, a transverse bolt extending through said lugs and below said tongue, and a clevis bar secured to the underside of said tongue and connected to said bolt, substantially as described.

4. In planters, the combination with a supporting wheel axle and a draft tongue, of a frame comprising side bars having converging portions and parallel front ends secured to said tongue, a guide box arranged at the parallel front ends of said side bars, and a furrow opener having a standard vertically shiftable through said guide box, said guide box comprising a pair of connected side plates secured directly to said side bars and projecting above the same, inclined brace bars connecting said plates to said side bars, and guide rollers for said standard arranged between said plates, substantially as described.

5. In planters, the combination with a supporting wheel axle, and a draft tongue, of a frame comprising side bars having converging portions and parallel front ends secured to said tongue, a guide box arranged between the parallel front ends of said side bars, and a furrow opener having a stand ard vertically shiftable through said guide box, said guide box comprising a pair of side plates secured directly to the front ends of said side bars and projecting above the same, connecting bolts and spacing sleeves arranged between said side plates, and guide rollers on the spacing sleeves at the upper front and lower rear corners of said plates for engaging the front and rear edges respectively of said standard, substantially as described.

6. In planters, the combination with a supporting wheel axle, and a draft tongue, of a frame comprising side bars having converging front ends secured to said tongue, a guide box arranged at the front ends of said side bars, and a furrow opener having a standard vertically shiftable through said guide box, said guidebox comprising a pair of side plates secured to the front ends of said side bars and extending above and below the same, connecting bolts and spacing sleeves extending between the corners of said side plates, inclined front and rear brace bars connecting the upper portions of said plates and said side bars, and guide rollers for said standard on the spacing sleeves atthe upper front and lower rear corners of said side plates, substantially as described.

7 In a planter, the combination with a supporting wheel axle and draft tongue, of a frame comprising inner side bars connected at their rear ends and having converging front ends secured to said tongue, bearing boxes for said axle secured at their inner ends to said side bars, outer side bars secured to the outer ends of said boxes and having converging front ends overlapping and secured to the front ends of said inner side bars, and said tongue, a guide box arranged between the front end portions of said side bars behind the rear end of said tongue, and a furrow opener having a standard vertically shiftable through said guide-box, said guide box comprising a pair of plates arranged between and secured to said side bars and projecting above and below the same, connecting bolts and spacing sleeves extendlng between the corners of said plates, guide rollers for said standard on the spacing sleeves at the upper front and lower rear corners of said plates, and a clevis bar secured to said tongue and to the forward ends of said side bars, substantially as described.

8. In a planter, the combination with a supporting wheel axle and draft tongue, of a frame comprising inner side bars connected at their rear ends and having converging front ends secured to said tongue, bearing boxes for said axle secured at their inner ends to said side bars, outer side bars secured to the outer ends of said boxes and having converging front ends overlapping and secured to the front ends of said inner side bars, and said tongue, said inner and outer side bars having adjacent parallel portions at the front part of the frame, pivot bolts extending through said parallel portions, drag bars having their front ends arranged between said parallel portions and pivoted on said bolts, said drag bars .ex-

tending rearwardly below said bearing boxes, a connecting bar between said drag bars, covering shovels carried by said drag bars, and guide lugs depending from the rear portions of said frame and engaging the inner sides of said drag bars, substantially as described.

9. In planters, the combination with a supporting wheel axle and a draft tongue, a frame comprising side bars connected at their forward ends to said tongue, bearing boxes for said axle secured to said side bars, drag bars pivoted at their forward ends to the forward ends of said side bars and extending rearwardly beneath said axle, a. bar connected tothe rear ends of said drag bars, covering devices carried by said drag bars, and guide lugs depending from said frame and engaging the inner faces of said drag bars, substantially as described.

10. In a planter, the combination with a supporting wheel axle and a draft tongue, of a frame below said wheel axle comprising inner side bars connected at their rear ends, outer side bars, said inner and outer 9t! side bars having overlapping, converging front ends bolted to the rear end of said tongue, bearing boxes for said wheel axle having depending notched lugs at their ends secured to and connecting the rear ends of said inner and outer side bars, drag bars pivoted at their forward ends to the forward ends of said side bars and extending rearwardly below said wheel axle, guide lugs for said drag bars depending from said 10 frame, covering shovels carried by said drag bars, a guide box connected to the forward end of said side bars, a furrow opener having a standard vertically shiftable through said guide-box, seed mechanism in said 10 frame in rear of said standard and geared to said wheel axle, a rock shaft extending above said side bars in rear of said standard, bearing boxes for said rock shaft above and secured to said side bars, and means on said rock shaft for raising and lowering said standard, said drag bars and for throw ing said seed mechanism into and out of operation, substantially as described.

11. In a planter, the combination with a 1 supporting wheel axle and a draft tongue, of a frame below said wheel axle comprising inner side bars connected at their rear ends, outer side bars, said inner and outer side bars having overlapping, converging 12 front ends bolted to the rear end of said tongue, bearing boxes for said wheel axle having depending notched lugs at their ends secured to and connecting the rear ends of said inner and outer side bars, drag bars 12 pivoted at their forward ends to the forward ends of said bars and extending rearwardly below said wheel axle, guide lugs for said drag bars depending from said frame, covering shovels carried by said drag bars, a guide box connected to the forward end of said side bars, a furrow opener having a standard vertically shiftable through said guide-box, seed mechanism in said frame in rear of said standard and geared to said wheel axle, a clutch for throwing said seed mechanism into and out of opera-- tion, a shifter for said clutch, a rock shaft extending over said side bars in rear of said standard, bearing boxes for said rock shaft above and secured to said side bars, a shift lever for said shaft, and separate devices on said shaft for raising and lowering said standard and said drag bars and for operating said clutch shifter, substantially as described.

12. In a planter, the combination of a supporting wheel axle, of a main frame mounted thereon, a supplemental frame pivoted on said main frame, a seed hopper mounted on said supplemental frame, guide lugs for holding said supplemental frame against lateral movement, seed mechanism in said hopper, gearing including a shiftable clutch member for connecting said seed mechanism to said wheel axle, and means for throwing said clutch member independently of said supplemental frame, substantially as described.

13. In a planter, the combination with a supporting wheel axle and draft tongue, of a main frame connected to said tongue and having bearing boxes for said axle, a supplemental frame pivoted at its front end to the forward part of said main frame, a seed box mounted on the rear end of said supplemental frame, a pair of guide lugs on said main frame, a pair of wrought metal lugs on said supplemental frame arranged to frictionally engage the inner faces of said guide lugs, a seed plate in said hopper, and gearing including a shiftable clutch member for connecting said seed plate to said wheel axle, substantially as described.

14. In planters, the combination with a frame, a supporting wheel axle, and a draft tongue, of a seed hopper on said frame, having seed mechanism therein, gearing for connecting said seed mechanism and wheel axle including a shiftable spring-held clutch member, a furrow opener having a standard vertically shiftable in front of said seed mechanism, drag bars pivoted on said frame and carrying covering means, a rock shaft j ournaled on said frame, a shift lever on said rock shaft, and separate, independently adjustable devices for raising and lowering said standard and said drag bars and for shifting said clutch member to disengaged position, substantially as described.

15. In planters, the combination with a frame, a supporting wheel axle, and a draft tongue, of a seed hopper on said frame, having seed mechanism therein, gearing for connecting said seed mechanism and wheel axle including a shiftable spring-l1eld clutch member, a furrow opener having a vertical standard, drag bars pivoted to said frame and carrying covering means, a latch for holding said drag bars in working position, a rock shaft journaled on said frame, separate, independently adjustable devices con nected to and operated by said shaft, for re leasing said latch, raising and lowering said standard and said drag bars, and shifting said clutch member to disengaged position, substantially as described.

16. In planters, the combination with a frame, a supporting wheel axle, and a draft tongue, of a seed hopper on said frame, having seed mechanism therein, gearing for connecting said seed mechanism and wheel axle including a shiftable, spring-held clutch member, a furrow opener, covering means, a rock shaft having means for raising and lowering said furrow opener and covering devices, a clutch shifter, and a cam adjustably fixed on said rock shaft and arranged to engage and operate said clutch shifter at a predetermined point, substantially as described.

17. In planters, the combination with a frame, a supporting wheel axle, and a draft tongue, of a seed hopper on said frame, having seed mechanism therein, gearing for connecting said seed mechanism and wheel axle including a shiftable, spring-held clutch member, a furrow opener and covering means, shift mechanism, adjustable devices connected to said shift mechanism for raising and lowering said furrow opener and covering means and a separate adjustable part connected to and actuated by said shift mechanism for shifting said clutchmember at a predetermined point, substantially as described.

18. In a planter, the combination with the supporting wheel axle, frame and draft tongue, of drag bars carrying covering means and pivoted to said frame, arms pivoted on the frame and having one way engagements with said drag bars to raise and lower the same, a rock shaft journaled on the frame, rock arms thereon, adjustable link connections between said rock arms and said first mentioned arms, substantially as described.

WVILLIAM SOBEY.

Witnesses STANLEY A. BREWER, GEORGE E. BOLTON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G.

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