Thomas brennan and edward christmas
US RE11720 E
Description (OCR text may contain errors)
No. ll,720.. Raissuad Fgb. 28, I899.
T. BRENNAN l. E. CHRISTIAN.
sun: Fun alum omLLs; (M m m. 15, 1500.
'rI-IoMAs BRENNAN AND ED ASSIGNORS TO THE BR WORKS, OF SAME PLACE.
ENNAN & CO.
WARD CHRISTMAN, OF LOUISVILLE, KENTUCKY, SOUTHWESTERN AGRICULTURAL SHOE. FOR GRAIN'DRILLS.
' srscr'sreArroa forming part of Reiisued Letters Patent No. 11,720, dated February 28, 189B.
Original No. 613,115, dated October 25, 1898. Application for reissue filed December 15, 1898. Serial No. 699,398-
l. Toall whom it may concern.-
Be it known that we, THOM EDWARD OHRIsTMAN,
of J efierson and State As BRENNAN and citizens of the United States, residing at Louisville,
in the county of Kentucky, have invented certain new and useful Improvements in Shoes for Grain-Drills, ing is a full, clear, and exact erence being had to the of which the followdescription, refaccompanying drawro ings, forming part of this specification.
The invention relates to an improvement in shoes for grain-drills, and has for its object the provision of a removable heel or en tter which can be readily detachable for purposes of sharpening,
replacement, or repairs of any kind. In use the lower rear edge or runner portion of the shoe enters the ground,
and consequently is wear and injury by reason subjected to most of the of the constant rubbing orfriction of the soil and its frequent contactwith hard objects, such as stone and the like, and is the part requiring the greatest attention.
The object of the improvement is to pro- 2 5 duce a shoe with a readily-detachable heel to permit of repair or replacement and at the same time enable its quick produce a firm and adjustment and rigidly-con nected shoe which cannot work loose and become discono nected by usage,
inafter described. To
as-will be more fully here:
accomplish this desired result, we construct the shoe with the heel'attached directly and removably tothe shank or extended portion of the grain-tube by a connection independent of the side plates and'having no conn ection whatever with saidtside plates, except the bearing of their surfaces, and
0 may be.used) which bolt the shank side plates may be removed or the heel separately and independen turbing the other parts.
we provide on the upper side of the heel a slotted tenon (one or more a bolt,-
are riveted at their rear ends directly to the shank and are 'entirelyindependent of the heel, so that either the side plates may be removed tly without dis- Fig. 4 is a perspective view of the seed-tube.
Fig. 5 is a. the shoe. of the side shoe.
Like letters of reference indicate identical parts in all the figures. I
A is a seed-tube, which is usually made with a contracting orifice for conducting the seed to the furrow or cut made by the runner.
At the lower end of the seed-tube A it is formed with a forwardly-protruding extenperspective view of the runner or Fig. 6 is a perspective viewof one plates or brace portion of the drillsion or foot a, which is preferably made with v its opposite faces or sides converging toward the lower and front edges thereof. The seedcondncting orifice of the tube terminates at the rear end of the foot a, charge-opening a. This extension or foot a is mortised to receive the tenons ff on the heel, as seen in Figs. 2 and 4. The foot ais provided with small screw or rivet holes 01 (1, extending laterally through the same. 7,
B is the cutter or heel portion of the shoe, with. a lower edge sloping upwardlyat the 1 forming the disforward point of the same, thus having its deepest cutting-point at the rear, slightly forward of and below the opening a. I ter or heel portion may be formed with a cut or scooped out portion e extend to the discharge-opening a'.
The lower rear B terminates, preferably, slightly forward of preferably dischargecutting edge of the runner' At the upper rear edge this cutto conform with and the upper rear edge thereof, as plainly seen 1 in the drawings.
On the upper side of the heel B are formed tenons f, f, and f, which are preferably set within the side edges of the runner B-that is, they are not of the same width as'the upper side of the runnerB-thus leavinga shoulder on the sides of the tenons f, f and f", as
seen in Fig. 5. The locking-tenons ff are receive bemade cut away to form a slot to of a bolt or pin gandso tween them the head constructed as to prevent the upward with-- drawal of the bolt, as clearly seen in Figs. 2 and 5. The pin or bolt g is placed with its head between the tenons f f which can only be done by sliding it in from the side. The bolt is then passed through the openingor hole in the foot a of theseed-tube A and locked or held in place by a nut h, thereby drawing the runner B up close against the foot of the seed-tube, the connection of course capable of being made very snug and holding the runner B rigid and preventing any longitudinal play of the same in its connections.
The construction above described is the preferred form ,as being the simplest and most effective. Of course the bolt may be connected to the heel in'any other well-known manner without departing from the spirit of our invention.
Attached at the sides of the foot 0. and lower end of the seed-tube A and overlapping the tenons on the upper side of the heel B and those on the foot a are plates C, which rest on the shoulders or upper side of the heel B alongside of the tenons. These plates 0 are provided with rivet or screw holes to conform and-register with the holes (1 d of the foot a, through which are placed rivets or other suitable fastenings to secure the plates to the sides of the foot. At the forward lower end of these plates 0, preferably at the point 10,
they may be riveted or otherwise fastened toether, thus clamping between them the tenon g I f" of the runner and preventing any possible side movement of the runner. In practice, however, the clamping effect of the rivets which attach the drag-bars l to the forward portion of these side plates is suflicient and the bolt may be dispensed with.
The forward ends of the side plates 0 project upward and are attached to a drag-bar or draft-strapl by rivets or bolts.
Our shoe is so constructed as to permit the use of side plates with straight edges, as shown in the drawings. 'By the use of such plates the cost of production is very much lessened and manufacture of the shoes.
side plates of the construction shown in the 55 tltiednecessity of specially-made shears obvi- In the constructions heretofore in use these plates 0 have been sheared with a curved edge, which curved edge could only .be obtained by using specially-made shears with curved blades, adding to theexpense of With the use of drawings, having no curved-edges, any ordinary shears may be used to cut the plates 0. As has been stated, the portion receiving the most wear is the runner or heel, which is made of tempered steel.
The advantages of our construction over those heretofore in use are very apparent.
By constructing a shoe with a detachable heel the expense to the user is greatly reduced and the durability of the shoe greatly enhanced.
The difliculty with the old form of shoe was the necessity in case, of repairs by reason of wear'or breakage of the heel portion thereof of removing the entire drill-shoe and replactime and money. With our construction these difiiculties are obviated, as the heel portion of the shoe can be detached in a moment, and in case of breakage a new heel need only be obtained, which can readily and quickly be attached and put in place by the userhimself by the more use of a wrench.
We are aware that shoes with detachable heels have heretofore been made; but with such constructions it has been difficult to obtaina firm and rigid connection and at the same time an easily-detachable heel and to produce as strong a shoe as we areable to obtain by our improved construction. constructions of this kind it is necessary to avoid the use of rivets passing laterally through the runner portion for attaching it to the remainder of the shoe, as thewear of mg it by a new one, incurring much loss of the soil coming in contact with the rivets might soon work them loose, and the necessity of removing the rivets to detatch the heel is troublesome and expensive, and a very unsatisfactory shoe would be the result. Furthermore, the shoes with detachable heels heretofore constructed have invariably been constructed with the heel riveted to or otherwise fastened to the side plates, necessitating the removal of therivets in order to remove the heel, whereas in our construction the heel being entirely independent of the side plates can be readily and quickly removed without regard to the side plates, and, furthermore, the side plates themselves can be removed, if necessary, without removing or without regard to the heel.
In our construction the tenon-aud-mortise connection 7 shank alone providesa perfectly rigid lock between the shank and the heel against all longitudinal strain regardless of the side plates. Furthermore,-in this construction side plates with only straight edges may be used.
Having thus described our invention, what we claim, and desire to secure by Letters Patent, is-
1. In a shoe for grain-drills, the combination of a seed-tube having a forwardly-extending foot, an .independent heel-piece removablyattached to said foot or shank independent of the side plates, substantially as shown and in the manner described.
2. In a shoe for grain-drills, the combination of a seed-tube havinga forwardly-extending foot mortised on its lower on the heel-piece and a bolt or equivalent fastening for rigidly locking the two parts todirectly between the heel and the side, with an independent heel-piece provided with a.
'gether, substantially and for the purpose described. v
4. In a shoe for grain-drills, the combination of a seed-tube havinga forwardly-extending foot, an independent removable heelpiece, and .side plates riveted or secured to the foot and adapted to fit upon the heelpiece, substantially as and for the purpose I described.
5. In a shoe for grain-drills, the combination of, a seed-tube therefor, an independent heel-piece secured to or held by said seedtube from longitudinal play, independent of the side plates, substantially as and for the purpose described. V
'6. In a shoe for grain-drills, the combination of an-independent removable heel-piece adapted to be attacheddirectly and independ- "ently of the side plates,"to the foot of the seedtube, substantially shown and in the man-- ner described.
7. In a shoe for graindrills, the cornbination of a seed-tube having a forward] -extending foot and an independent heel t erefor, said heel being provided with interlocking tenons with recesses in said foot to receive the same,the tenons on the heel grooved to receive the head of a bolt to lock the parts together, said tenons formed to leave a shoul-' der to receive the lower edge of the side' plates, and both the foot and the heel formed I to receive side plates,substantially as and for the purpose described. V THOMAS BRENNAN.
. EDWARD QHRISTMAN. Witnesses:
E. P. BROWN, G. E. CHRIs'rMAN.