US699411A - Stanchion. - Google Patents

Description

Patented May 6 I902 E. PRESCOTT.

S T A N C H l 0 N (Application filed. May 17, 1900.)

(No Model.)

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UNITED STATES PATENT ()FFICE.

EDWIN PRESCOTT, OF ARLINGTON, MASSACHUSETTS.

STANCHl-ON.

SPECIFIGATION forming part of Letters Patent No. 699,411, dated May 6, 1902.

Application filed May 17, 1900. Serial No. 17,025. (No model.)

To all whom it may concern.-

Be it known that I, EDWIN PRESCOTT, a citizen of the United States, residing at Arlington, in the county of Middlesex and State of Massachusetts, have invented an Improvement in Stanchions, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention is intended to be an improvement on the stanchion described in United States Patent No. 619,222, granted to meFebruary7,1899. Thestanchiondescribed in said patent was guided at its lower end and was adapted to be moved into the usual crib when the cow was in the act of lying down or getting up, the stanchion having this movement when the cow is on herknees. In practice this movement, due to the contact of the shoulders of the cow with the stanchion, is considerable, and the extent of,

this movement in order that it might be suited to any cow, and consequently to all cows, required the extension into the crib-space of a slotted plate which made it difficult to clear the crib, and, further, the cow would not get at the food under the projection and the food accumulated and became sour, which was very detrimental. The use ofthe slotted plate unduly limited the movement which could be given to the lower end of the stanchion. To obviate this difficulty and increase the extent of movement of the lower end of the stanchion and yet not in any way contract the crib-space, I have devised for the first time known to me a series of links interposed between the lower end of the stanchion and the bottom timber, which besides allowing this movement also guides the stanchion in its movement, and when the cow is standing the links lie without the crib, In

practice I have found usually that the lumher used in stanchions (hard wood) as it becomes thoroughly seasoned in use twists, and when the loose pivot-bar of the stanchion, which, to the best of my knowledge, has always presented a quadrilateral shape in cross-section, twists it effects the proper operation of the devices employed to hold said bar in its operative or closed position, this being so because one end of one of the links in looking and unlocking the movable bar of r the stanchion. 'lo obviate this trouble,which in practice is serious, I have-rounded the upper end of the bar, which moves in the barguiding loop, and have attached the link at one end to said rounded part, preferably at the part of the bar of greatest thickness, thus furnishing a sort of yielding connection,and I have curved the link and its mate in two directions, as shown, which locates the pivot uniting the link with the bar when the bar is closed in a Vertical planebetween the pivot connecting the said link and its mating link or lever and the fulcraof said mating link or lever, or, in other words, the point of connection of the link with the upper end of the bar is at the rear of a line drawn from the point of connection of said link with its longer mate and the connection of said longer mate with the stanchion. outer end of the metallic loop constituting the bar-guide has presented a semicircular end; but herein the outer end of said loop is substantially square and presents two substantially right-angled corners. I have found in practice in using this round-ended loop that should a cow instead of entering the Heretofore the proper space of the stanchion attempt to get 7 her head between the stationarybar of the stanchion and the adjoining upright timber that the pressure exerted by the cow on the stationary bar of the stanchion would impart such movement to the entire stanchion that the movable bar located in the outer end of the loop and supposed to engage the holding" ency whatever to move the loose bar out of its holder. In the patent referred to the cow in lying down acted upon a lever which lifted a pin out of the slot of the bar used to guide the lower end of the slot inthe plate used as the guide for the lower end of the stanchion.

Herein I have devised a tripping device which is connected with the lower end of the stanchion, said tripping device consisting of a pin loosely connected with one of the links hereinbefore referred to, so that when said pin is lifted the link will be raised above a suitable stop on the bed-plate. The cow in lying down acts against a lever of this tripping device and turns a second lever actuat inga third lever connected with the pin. The weight of the pin and bar is sufficient to enable the pin and link to descend to engage the stop whenever the cow stands on her feet, so as to lock the stanchion in its proper operative position.

The holderof the movable bar has a suitable notch in which said bar may enter, and there is an incline leading up to the notch to thus cause a slight inward movement of the bar as it comes into holding position in the holder.

Figure 1 shows the stanchion open, viewing the same from the rear floor where the cow will stand. Fig. 2 is an enlarged detail showing the lower end of the stanchion with the pin connecting the stanchion with the link. Fig. 3 is a detail showing in section the end of the link and its longer mating link united by a shouldered stud. Fig. 4 is a top viewof Fig. 1. Fig. 5 is a detail below the dotted line 00, Fig. 1. Fig. 6 is a detail showing the end of the foot-iron turned into the stationary bar.

The bottom timber A and the top timber B are those commonly found in barns for stabling cows, and at one side the timber A is the usual floor in which the cow stands, and at the opposite side of said timber is the usual crib in which is placed the food for the cows.

The timbers A and B are united by suitable uprights O, the uprights 0 being separate to constitute a series of spaces, one for each cow. In these spaces are located the stanchion to be described.

The timber A has applied to it preferably a suitable iron plate, as a, said plate being connected by suitable nails or screws, as a, and said plate in the present instance of my invention contains two headed studs a a and near the ends of said plate I have located a suitable stop, as a.

The timber B has connected with it a suitable stand I), provided at its outer end with a; suitable bolt or pivot 12, which serves, as herein illustrated, as a pivot for the upper end of the stanchion D, so that the stanchion may swivel freely to the movements of the neck of the cow in eating.

The lower end of the stanchion is provided at each side with suitable foot-irons cl, said foot-irons being connected with the lower end of the stanchion by suitable rivets, as d. The

right-hand end of the two foot-irons dreceives a suitable pivot d upon which is mounted to turn the lower end of the movable bar D of the stanchion.

It will be noticed (see Figs. 1 and 6) that the end of the foot-iron overlapping the lower end of the stationary bar of the stanchion is so cut as to leave suitable prongs, as 2, and when these prongs are applied to the stanchion the projecting pronged ends are struck by a suitable hammer or punch and turned inwardly into the lower end of the stationary bar of the stanchion, as represented in Fig. 7.

The upper end of the movable bar D of the stanchion is rounded at its broader faces, (see Figs. 1 and 4,) and said rounded end is eX tended upwardly through a guiding-loop d having, as represented best in Fig. 4, substantially right-angled corners 61 instead of, as heretofore, rounded or curved corners. The upper ends of the guiding-loop d are secured to the upper end of the stanchion by suitable rivets d of any desired number.

The stationary bar of the stanchion has a guiding-stud d, which enters loosely a slot 61 in the end of a link d the opposite end of said link being connected by a suitable stud-screw d with the shorter end of a mating link or lever e, mounted also preferably upon a like stud-screw e .eXtended from one side of the upper end of the stanchion. The opposite end of the lever c has a suitable stud-screw (2 with which is joined one end of a link 6 the op positc end of said link being connected with a stud-screw c, said stud-screw entering the rounded portion of the movable bar substantially at its point of greatest thickness. shape of one of these studs is shown clearly in Fig. 3.

By using a stud, especially when uniting the links 6 and d with the link 6, it is possible to make a connection that will afiord freedom of movement of one part on the other without any tendency to bind, as would be the case if a rivet were inserted and headed up at both ends, for the reason that the shank 3 of the stud may be headed and seat the shoulder 4 of the stud upon, say, the link e without at all affecting the part of the stud which is surrounded by the link 6 The end of the link 6, herein called the mating link, which is pivoted to the link a is curved, as represented in Fig. 4, to present two curvatures, and the link a is also curved to present two like curvatures, and the end of said mating link, to which is connected the end of the link 6 occupies such a position that the pivot uniting the link a withthe upper end of the bar D is at the rear of the line drawn from the point of connection of said link 6 with its longer mate e and the connection of said longer mating link e with the stanchion.

Rounding the face of the stanchion, with which the end of the link 6 is joined, enables the movable bar of the stanchion to twist somewhat, as it most always does in drying The and seasoning, without affecting the proper operation of the mat-ing link or lever and link e and any pressure on the loose bar of the stanchion when closed tends to bring the link and its longer mate together instead of apart, as would be the case if the links were left straight,.and by curving the mating link or lever and the connected link e enables the pivot 6 when the stanchion is closed to be located at the rear of a straight line drawn to intersect the center of the joint made by the pivot e and the part of the pivot c, on which said mating link or lever e turns, such location of said pivot resulting in forcing the link 6 firmly against the inner side of the mating link or lever instead of away from it when pressure is applied to the loose bar. This construction adds greatly to the strength of the levers without any increase of weight in material.

The stanchion near its lower end has pivoted upon it at 6 the upper end of a shoulderleverf, jointed at its lower end at f and having its shorter arm provided with a suitable hole in which is entered loosely the end of a lever f havinga fulcrum at f in which the lever may both tip and slide. The opposite end of the lever f enters loosely a suitable stud f, placed loosely in a suitable hole in the lower bar (V of the stanchion. The lower end of the stud f has a head '7, (see Fig. 1,) and said stud is passed upwardly through a suitable hole in the link and the small end of the stud is then passed through a suitable hole in the bar d, and thereafter the lever f is connected with the stud. One end of the link g surrounds loosely the headed stud a and the other end of the link is jointed by a suitable pin 8 with one end ofa slotted link g, the slot of said link embracing and sliding on the headed stud a WVhen the cow is standing on the floor with her head in the stanchion, the lower end of the lever f is turned outwardly by the weight of the stud 5 f and the connected links, and at such time the link g meets the end of the stop a and prevents its sliding transversely of the timber A of the stanchion. WVhen, however, the cow gets onto her knees, the shoulder of the cow meeting the lever f, acting through the levers f and f lifts the stud f and with it the link g, so that said link is lifted sufficiently above the stop a to let the lower end of the stanchion swing inwardly, the links 9 and g by such movement occupying the dotted-line position, Fig. 5. The slot 10 in the end of the link g, cooperating with the stud a limits the extent of backward and forwardmovement of the stanchion.

Referring to Fig. 1, the movable bar of the stanchion is open, ready for a cow to put her head between the vertical upright bar and the movable bar, and thereafter the attend ant by moving the loose bar to its closed position operates to move the link 6 and its longer mate into the position shown by dotted lines in Fig. 1, when the slotted end of.

bar (1 falls, and its notch catches on screw (Z and the stanchion is locked.

\Vhen the movable bar of the stanchion occupies the dotted-line position, Fig. 1, the link e falls immediately behind the end of the mating link 6.

The upright O has connected with it asuitable holding device it, (represented as a piece of metal bent to form a recess to present an incline h,) against which the inner side of the movable bar may strike as the stanchion is being turned from the dotted-line position, Fig. 4, into the full-line position, same figure.-

By making the end of the guide-loops e substantially square instead of rounded, as heretofore, should a cow instead of entering the proper space of the stanchion attempt to get her head between the stationary bar thereof and the adjoining upright G the pressure exerted by the cow on the stationary bar tends to force the stationary bar farther into the holder rather than to disengage the bar from the holder, as when the round-ended guide-loop is employed.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. The combination with a suspended stanchion having a movable bar, of a link connecting the lower end of said stanchion with a fixed part of the barn structure.

2. A stanchion, a link connecting itslower end with a fixed part of the barn structure,

and asecondary link atfordinga limiting-stop for the stanchion in its extreme position.

3. A stanchion, a stop on the fixed partof the barn structure,a link connecting the lower end of said stanchion with said fixed part, andmeans carried by the stanchion and under the control of the cow to lift thelink and permit the lower end of the stanchion to slide forward as the cow is lying down or getting up.

4. The combination with a stanchion having in its lower end asliding pin, of a link connecting said pin with a fixed part of the barn structure, a plurality of levers for lifting said pin and a suitable stop for said link.

5. A stanchion having at its upper enda pivoted bar-guiding loop having itsouter end made substantially square, and a stationary holder to receive the upper end of the bar.

6. A pivoted stanchion having a loose bar rounded at its upper end, combinedwith a bar rounded at its upper end, combined with a link curved in two directions and connected at one end with the upper end of said bar, and at its opposite end with a curved end of a matinglink or lever pivotally mounted upon the head of the stanchion.

8. A pivoted stanchion having a movable bar rounded at its upper end, combined with a link curved in two directions andconnected bar being at the rear of a line drawn from the point of connection of said link with its longer mating link or lever and the connection of said longer mating link or lever with the stanchion.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

EDWIN PRESCOTT.

Witnesses:

MARGARET A. DUNN, HEATH SUTHERLAND.

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