US90297A - Improved railway-car seat - Google Patents

Description

PERRY & BILLINGS.

Railway Car Set.

Patented May 18, 1869.

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G. W. PERRY AND J. D. BILLINGS, OF WILMINGTON, DELAWARE.

Letters .Patent No. 90,297, dated .May 18, 1869.

IMPnovnn RAmWAY-CAR SEAT.

The Schedulexeferred in these Letters Patent and znaking part of the 'same- LINGs, vof Wilmington, county ot' 'New Castle, State4 of Delaware, have invented an Improvement in Seats for Railway-Cars, Sac.; 'and we do hereby declare the following to be a full, clear, and exact description of the same.

Our invention relates to an improvement on the carseat for which Letters Patent were granted to /us on the 8th day of December, 1868; our present invention consisting of devices, fully desclibed hereafter, for so adjusting the seat that it may be depressed in front or at the rear, or may be in a horizontal position. l

In order to enable others familiar with mechanism of this class to make and apply our invention, we will now proceed to describe its construction and operation, reference being had to the accompanying drawing, which forms a part of this speciicatiomand in which- Figure l is a vertical sectional view of our improved seat for cars, duc; l

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Figure 3, an inverted plan view; i

Figure 4, a detached sectional view, on the line 3 4, tig. l; and l Figure 5, a sectional perspective view, lillustrating a portion of our invent-ion. l i

Similar letters refer to similar parts throughout the several views.

The frames A and A', of the chair, are in the presentinstancc of cast iron, and are connected together, near the top, by three rods, ,a, and b, the latter rod, which is attached to the centre oi' each side frame,

being situated slightly above, but midway betweenthe rods a and a'. v

Two plates, B and B, are fitted loosely to the rod b, and are connected together by a senlicircular strip 0r plate B", which passes partly around, but is free from contact with the rod, the whole forming a rigid metal frame, which can turn freely upon but is prevented from moving lodgitudinally on the saidrod b,

On the inner sides of' the plates l5 and l are grooves, to which are adapted lugs c c, formedbn the lower edges ot' two plates, F` and F', which are "secured to thelopposite sides ofa box, H, the latter forming the lower portion of the seat of thechair,. whici1, when thus attached to the plates B and B', can be` moved thereon longitudinally, to the limited extent required in adjusting the back of the seat to,dii'lerent,angles, as fully described in our aforesaid patentot December 8, 1868. ,g ,d

In our former patent, the seat, although 4permitted to slide longitudinally between the/'side frames, was always maintained in a horizontal position. By the employment of ceitaiu. devices, however, which we will Figure 2, a section of the same, on the line .12,

... -9 4. I proceed'to describe, we are now enabled to adjust the seat, as well as `the back, to' any desired angle.

A curved plate 0r yoke, J, passes beneath the rod b and plate B", and over the rods a and a', its curved ends partly embracing' the latter, as best observed in fig. 1.

tndinal slot, f, of the plate B, and forms a sleeve, li, which isl arranged to slide upon the rod b, and at a point directly beneath this .sleeve is a nut, i, having threads corresponding to those of a screw, L, which passes through and is arranged to turn freely 1n the frame A otthe chair, but which is prevented from4 moving longitudinally in the same by its collars e c. (See iig. 2.)

To a pin, l, at one end of the yoke J, is hung a toothed cannlll, which gears in to a rack, g, secured to the under .side of the seat H, and at the opposite end of the yoke is hung asimilar toothed cam, M,

which also gears into a rack, g, ofthe seat.

As the seat is arranged to have a sliding motion be? position of the sliding seat, the said cams are always iu gear with,the rac-ks.

The seat H is in eiiect pivoted to the rod b, and rests upon the cams M und M', its inclination being determined entirely by the latter, which are so ar ranged, that when one cam is elevated, the other is depressed, as seen in iig. 2.

When the yoke J is caused to slide upon the rods a, a', and b, byoperating the screw L,'the toothed cams will also be caused to traverse the racks g, and to turn upon their pins l, -one ot' the cams being raised as itis turned, and thus elevating that edge ofthe seat to which it is in nearest proximity, while the opposite cani will be correspoinlingly lowered, and will Ipermit the proper depression Vof the opposite edge of the scat.

This will be 'illustrated by referring to iig. 5, and supposing that the yoke J is being moved in the c irection ot' the arrow, by a propel' operation ot the screw lhe racks being sttitionary, the cams will both turn, and in the same direction; but owing to the manner in which they are adjusted in relation to each other, the edge x ofthe seat will be elevated by the calnM",

while the cani M will be so operated as to permit the opposite edge x ot' the seat to descend.

It will be evident that on reversing the motion o:` the screw, and thus sliding the yoke in a diiferent direction, the action ot' the cams will he also reversed.

Stops z z, at the opposite ends ofthe slot j; of the plate Biere arranged to arrest the yoke J, in order A vertical arm of this vokefpasses through a longitoprevent the latter from being moved to such anextent as to show the toothed cams out of geur with the racks g g;

When the sent has been adjusted to a, horizontal position, or to vany desired angle, and the motion of the cams @ils stopped, the latter will form eieetual rests for the scl t, and will prevent it from tilting.

Althou.,h we prefer to use the above devices in connection w th a. hzu'r having zmndjnstable back, asilescribe v in Iour fermer patent, yet it will be evident that they can e used independent-ly ofthe sume, in whichv case the seat, not reqniringa. sliding motion, can be secnredrdirectly to the plates B and B, and the racks lg g can be made of a width corresponding to that of the toothed segments.

We claim as our invention, and desire to secure by Letters Patent;

1. Theseut H, pirated directly or indirectly to the rod b of the frame, and having racks', g g, adapted t toothed eams MM', by the movementof which, through the medium of the devices herein described, or any 'equivalent to the saine, the said seat H may be adjusted as set forth.

2. The sliding yoke J, ezurying the toothed cams M rand M', and controlled by the screw L, in lombinntion with the r-.ieks g g beneath -the seat H, the whole being arranged and operating substantially as and for the purpose herein set forth:

In testimony whereof, we have-signed our names to this specieation, in the presence of two subscribing witnesses.

' GJ W. PERRY.

J..D` BILLINGS. Witnesses:

E. H. BAILEY, Louis Boswnm..

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