US265606A - jackson - Google Patents

Description

2 Sheets--Sheet 1.

(No Model.)

J.- JACKSON.

JUMP SEAT GARRIAGF. f

Patented Oct. 10, 1882.,

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(No Model.) 2 Sheets-Sheet 2..

LT.JACKS01\I.

JUMP SEAT CARRIAGE.

No. 265,606. Patented Oct. 10, 1882.

WITNEEEEEIZ Ntra Santas- ATBNT Fries.

JOHIEL JACKSON, OF FORT ATKINSON, WISCONSIN, ASSIGNOR TO THE NORTHWESTERN MANUFACTURING COMPANY, OF SAME PLACE.

JUMP-SEAT CARRIAGE.

SPECIFICATION forming part of Letters Patent No. 265,606, dated October 10, 1882.

Application tiled August 17,1882.

To all whom it may concern.-

` Be it known that I, JoHiEL JACKSON, of Fort Atkinson, in thecounty of Jefferson and State ot' Wisconsin, have invented certain Improvements in Jump-Seat Carriages, of' which the following is a specification. V

My. invention relates to shifting-seat or jump-seat vehicles; and the improvement consists in a novel construction and arrangement of parts, whereby the movement of one seat is caused to eiect the simultaneous movement ofthe other, and whereby also the front seat is automatically locked in position without the use ot' special props or braces.

In the accompanying drawings, Figure l represents a longitudinal vertical section of a carriage provided with myiniproved shiftingseats, both seats being shown in position for use; Fig. 2, a similar view, but with the position ofthe seats changed; Figs. 3 and 4, like views of a slightly modified form ot' shifting device.

Hi'therto many forms and constructions of shifting-seat irons or fittings have been produced or suggested, and in some instances the supports ofthe two seats have been so connected that the movement of one seat would cause the other seat to move in unison therewith.

My improvements relate to the latter class particularly, and are designed to obviate the necessity of special catches or fastenings to retain the seat in au elevated position, a result which I et't'ect by a peculiar arrangement of the pivots of the intermediate connection between the front and back seat iron.

Referring again to the drawings, A represents a carriage-body, aud B O, respectively, the front and back seats.

The forward seat,B, is provided with a frame or iron, a., at each end,pivoted at the rear side at b, so that it may fall forward and assume the position shown in Fig. 2, closing up the space beneath the rear seat, which at such time stands directly over it, as also shown in said figure, hiding the irons and presenting the appearance of a curtain or flap.

The rear seat, C, is supported by irons c d, both pivoted to the bodyA at their lower ends, as at e, and to the seat C at their upper ends,

(No model.)

and arranged to swing back and forth about their pivots c in a vertical plane, to carry the seat forward or backward, as desired, the seat resting in either position upon the upper edges of the sides ofthe body A.

The iron c, at each end ot' the seat, is formedv with an artn,f, projecting therefrom, which is connected with iron or frameu ofthe forward seat by a link, g, pivoted to arm fat h and to frame a at t. The angle at which arm f projects from bar or iron c is such that when the seats are iu the position indicated in Fig. l the vpivot 7i will be inline with or slightly above a` plane passing through pivots e and t'. Hence it will be seen that as the rear seat rests upon the bodyA, and consequently cannot move l'arther back, theseat B will be tirmly supported by link g, which cannot press the arm j'downward, because connected therewith above the line ot' pivots c i, and cannot raise the same, because bar cis held against further backward movement by the seat O.

lt will thus be seen that when the seats are thrown to the position indicated in Fig. l the -forward seat will be automatically and tirmly locked iu its elevated position without the aid of special or independent props or catches for that purpose.

Vhen it is designed to shift the seats 'it is simply necessary to swing the rear seat upward and forward, whereupon the arm fwill swing downward, drawing upon link 'g and turning down the seat B, as shown in Fig. 2, the rear seats resting upon the sides of the 4body directly over the seat B, as shown.

In Figs. 3 and 4 I have illustrated a slightly modified form ot' mechanism embodying the same principle; but I would here remark that the form above described is preferred. In this the seats B and G are respectively carried by irons a and bars or irons c d, as iu the foregoing; but, instead of forming the armf upon the bar or iron c, I make the same separate therefrom, in the form ot' aslotted link or bar, j, one end of which is jointed to iron c above its pivot and the other end connected to link g by pivot h, as in the preceding form. The bar or link j is bent or curved upward between its ends, as'shown in Figs. 2 and 3, and slotted to receive a stud or pin, k, which forms a pivot or fulcrum for the link, upon which said link both slides and turns. Under this construction and arrangement of parts the move ments of the seats and their immediate supports are precisely the same as with the other form described, but the intermediate connections operate in a slightly diiferent manner.

Assuming the seats to be in the position shown in Fig. 3 and the seat P to be raised and moved forward, it will be seen that linkj first slides over the stud or pin k, its forward end swinging upward until the ends of its slot come to the stud or pin k, at which instant the lower end of said link is at its highest point, from which time the link, turning upon the pin or stud, swings backward, drawing with it the link g and throwing` downward the forward seat, the slotted link j at the saine time sliding upon the pin t to enable it to maintain its proper relation to the baroriron c, with which, as above seen, it is connected.

In shifting back to the first position the action is simply reversed. 1n this, as in the pre ceding form', the former seat is sustained by reason ofthe rear seat being held against further backward movement, and the strain or pressure being applied at a point above the pivots or connections e and i, and theinability ofthe parts to move in that direction.

Other modifications of the saine principle will readily suggest themselves to the skilled mechanic.

The length of arm f or link j andthe relative movements ofthe parts is such that the front seat, when turned down, is caused to assume a "ei-tical position, and thus to serve as a curtain or flap for the rear seat drawn forward. This 'eatureis important, since it avoids the necessity ot' a curtain to the rear seat for this purpose, which curtain interferes with the convenient operation ofthe seats, and entirely conceals the mechanism from view from the front.

Having thus described my invention, what I claim isv 1. In combination with a front seat pivoted at its rear side to permit it to drop forward, a rear seat carried by pivoted supports arranged to swing in a vertical plane, and an intermediate link or connection between the supports ofthe front and rear seats, having apivot above a line passing through the lower pivot ot' the rear-seat irons and the point of connection with the forward seat when the latter is raised, whereby the forward seat is automatically locked and held in its upright position without the aid ot' special locking devices.

2. In a jump-seat mechanism, the combination of a front-seat frame or iron pivoted at its rear, a rearseat iron pivoted at its lower end, and a link or connection pivoted to the frontseat iron and connected with the rear-seat iron at a point in line with or slightly above a line passing through the pivot ot' the rear-seat iron and the point of connection with the forward seat.

3. In combina-tion with the iron c, having bent or laterally-projecting arm the iron a, and link y, connecting iron a and arm j', as and for the purpose set forth.

4. rIhe herein-described jumpseat mechanism, consisting of irons c d,the former having arm f pivoted at c, iron a, and link g, connected with iron aat point i, and with arm f, the latter point ot' connection being in line with or JOI'IE L JACKSON.

W'itnesses StB. CORNELL, 1). BULLocK.

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