US624117A

US624117A - William stephenson

Info

Publication number: US624117A
Authority: US
Publication date: 1899-05-02
Anticipated expiration: 1916-05-02

Description

no; 624,l|7. Patented May 2, I899. w. STEPHENSON.

SEED DRILL.

(Application flletl Apr. 15, 1898.)

(No Model.)

THE Noams PETERS co, Puo'muma. WASHINGTON. a. 4;

'ilNirEn TATES ATENT rrrcn.

WILLIAM STEPHENSON, or MORRIS, CANADA.

SEED-=DRILL.

SPECIFICATION forming part of Letters Patent No. 624,117, dated May 2, 1899.

Application filed April 15, 1898. $erial No. 677,668. (No model.)

To all whom, it may concern! Be it known that 1, WILLIAM STEPHENSON, a citizen of the Dominion of Canada, residing at Morris, in the county of Provencher, in the Province of Manitoba, Canada, have invented certain new and useful Improvements in Seed- Drills; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the san e.

My present device relates to improvements in the class of agricultural implements above named, by which, first, their draw-bars may be rendered more easy of adjustment than those as at present constructed; second, an improved device for adjusting the spring tension of the side scrapers.

Hitherto it has been found very difiicult to adjust the drill-shoe grain-spouts to the rubber feed-tubes with draw-bars of different lengths in order to get the shoes in the desired position known as dodged, or one in rear of the other alternately, andthe first part of my invention is of such improved construction as will conveniently enable an operator to adjust the shoes to draw-bars of different lengths in the field or otherwise with only a simple wrench.

My device consists, first, in forming a circular-shaped projection on the front of the grain-spout (or the equivalent thereof as a standard in some machines) about three inches in diameter with a bolt-hole in the centre, and about 'one-third in from the outer edge of the same a circle of small corrugations or notches on both sides. Two circular castings of the same diameter as the projection on the grain-spout guard have their inner sides constructed with corresponding corrugations in order to fit one on each side of the said projection on the grain-spoutguard. The outer sides of the said circular castings have two projections or ribs between which to form a bed to receive the ends of the draw-bars, the several parts being all adjustably held together by a bolt made to pass through each and tightened by a nut, as will be further explained hereinafter.

My device consists, secondly, in the improved tension of the side scrapers, by which they can be more easily and quickly adjusted, according to the conditions of the soil, to clean the disks.

Reference being made to the accompanying drawings, Figure 1 represents a side view of disk and grain-spout in an upright position. Fig. 2 is a rearview of the same. Fig. 3 is a side view of the grain-spout detached from the disks. Fig. 4 is a side view of the end of one of the draw-bars. Fig. 5 is an elevation of one of the circular castings. Fig. 6 is a similar but outside view. Fig. 7 is an edge View of one of the circular castings. Fig. 8

is an end view of the parts bolted together. A

Fig. 9 is an inside view of one of the side scrapers. Fig. 10 is a perspective view of one of the side-scraper levers. Fig. 11 is a side and edge view of the top portion of the central scraper. Fig. 12 is an elevation of the lower central scraper. Fig. 13 is an edge view of the upper and lower parts of the double central scraper. Fig. 14 shows grain-spout at diiferent angles in dotted lines when drawbars of various lengths are attached thereto and the rubber tubes bending into the top.

In the drawings, A A represent the two disks, which are mounted in converging planes, as described in my prior patents, No. 588,027,datedAugust10,l8S7,and Nos.603,862 and 603,863, dated May 10,1898, on the axles of the casting B and secured thereto by the notched metal caps O.

D is the circular-shaped projection cast on the forward portion of the grain-spoutand havinga bolt-hole 6 through its center and both of its sides having corrugations at around the same, as shown.

E, Figs. 5 and 6, represents the circular castingswhich fit on each side, respectively, of the circular-shaped projection D.

h are the corrugations on the inside of each castingE,and ccare projectingribs on the outside of both of said castings E E to act as a bed for the reception of the ends of the two drawbars ff, the same being secured by means of a bolt 6 made to pass through the hole cl in each of the draw-bars, the hole h in each of the circular castings or washers E E, and also through the hole c of the projection D to hold the parts together and tighten them by the nut t' on the threaded end of the said bolt g, as shown at Fig. 8. Thus it will be seen that the corrugations b on the inner side of each of the circular castings or washers E fit the corresponding corrugations a on both sides of the projection D of the grain-spout B,which prevents the washers E from turning after the ends of the draw-bars f f are placed 011 the bed of each washer E after the grain-spout is adjusted as desired and the parts tightened up by the nut 71 on the bolt g. By this construction the disks can be set out of line with each otherthat is to say, the disks of each gang can be so set as to be alternately in front of and behind a medial transverse line-and the grain-spout of each disk can be so adjusted as to be vertical, or inclining backward or forward, so as to conveniently receive the ends of the rubber grain-feed tubes j (shown in dotted lines) without unnecessary wear or friction against the said grain'spout 13. It will further be observed that with the old plan of construction in order to set the grainspouts dodged would necessitate the making of a different draw-lug with a special angle for every length of draw-bar, while my present device can suit any length of draw-bar or angle to which to adjust the grain-spout B.

The side scrapers consist of two irregularshaped plates q, provided with lugs r, secured to their inside surface, as shown at Fig. 9, to each of which is pivoted a lever s by the pin on, attached to each lever entering the said lugs 0 1', the said levers being provided about the center with a steel pin a, affixed thereto for the purpose of pivoting said levers to lugs 7L, cast on each side, respectively, of the grain-spout B. Cotter-pins Z),passed through the pins (1, hold the levers in place. The upper end of one of the levers s is bent inward, and a spiral spring t of the requisite degree of strength is slipped over the said lever end and over the right-angled point 11 of the opposite lever to press the upper ends of said levers apart, and thus cause the said side scrapers q to impinge at the desired angle on the outer side of the disks A, as shown at Figs. 1 and 2, and clean them. The tension of the said spring 25 can easily be adjusted by making the arm .5- wide enough to fill the inside of the coiled springzand provided with two projections 1616 on the arm to pass between the coils of the said spring, one on each side, acting as a thread to turn the spring either on or off, the other end of the spring having the last coil made smaller and oval-shaped to fit the end of the right lever, which is flat-pointed, so as not to allow the spring to turn from the position it is set to, according to the nature of the soil the machine is to work in. By this means the outside cutting edge of each disk is kept clear of soil. The inner face of each of the said disks is kept clean by means of two adjustable central scrapers w and w. The lower one, 20, is beveled to correspond to the slanting position of the disks, as shown at Fig. 2, and detached at Fig. 12, having a longitudinal slot as, over which a washer is placed for a screw-bo1t g to pass through and made to screw into the lug 7; on the rear of the casting grainspout B, the upper part of the said scraper resting against the lug 3 on the said grainspout casting. Thus it will be seen that by means of the slot as the scraper to can be adjusted vertically to suit the angle of the two disks B B to keep their central portion clear of mud when in operation.

The inner edges of the disks are beveled about five-eighths of an inch from the outer edge, and the short upper portion '10 of the scraper is beveled from its center downward to correspond to the bevel of the disks, as shown at Fig. 2. It has also a slotted opening at, through which a capped screw 1 is made to pass to screw into the lug 2", cast on the rear of the grain-spout casting B, a washer being placed between the screw-head and the scraper. Thus the said upper scraper can be adjusted so that the wear of the same can be taken up to correspond to the bevel of the disks. In their normal position the top scraper 10 will overlap the lower one, 10, about one-eighth of an inch, the result of these two central scrapers being to keep the inside surfaces of the disks always clean as they revolve past the scrapers when in operation.

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

1. The combination of a grain-spout having circular projections with corrugated faces on each side thereof, drill-disks upon the lower end of the grain-spout, draw-bars for pulling the grain-spout, and washers, each having corrugated inner faces to engage the projections on the grain-spout and ribbed outer faces to receive the rear end of the corresponding d raw-bar, the said grain-spout,projections thereon, washers and draw-bars having registering bolt-holes therein, and a bolt passing through the said hole to lock the parts in their adjusted position.

2. The combination withv drill-disks and a grain-spout, of pivoted arms each of which carries a scraper for a disk on one end thereof, one of the said scraper-arms having its opposite end bent inwardly, and provided with projections, a spiral spring having its one end mounted upon the said inwardly-bent end of the scraper-arm, and engaging the projections thereon, and having its opposite end con tracted in one direction, and a similar-shaped projection on the free end of the opposite arm, whereby the spring may be held against turning; substantially as described.

Dated at Hamilton, Ontario, this 7th day of March, 1808.

\VM. STEPHENSON.