US694283A - Seat. - Google Patents

Description

No. 694,283. Patented Fb. 25, 1902.

L. JANSON.

SEAT.

(Application filed Sept. 12, 1901.)

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Patented Feb. 25, I902. L. JANSON.

SEAT.

(Application filed Sept. 12, 1903..)

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UNITED STATES PATENT OFFICE.

LOUIS JANSON, OF BROOKLYN, NEIV YORK.

S EAT.

SPECIFICATION forming part of Letters Patent No. 694,283, dated February 25, 1902.

Application filed September 12, 1901. Serial No, '7 5,191. (No model.) i

ticularly for use in railway-cars and other public places; and it comprises certain novel forms of construction and combinations of parts concerning the devices for reversing the seat.

This specification is a specific description of one form of the invention, while the claims are definitions of the'actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part of this specification,

in which similar characters of reference indicate corresponding parts in both views.

Figure 1 is a side view of the invention, and Fi 2 is a partial front view thereof.

The rigid parts or base of the seat are made up of the end frames (1, connected together by the transverse rods a, carrying at their top the beams a which beams project sidewise beyond the end frames at and carry the end plates a one at each end of the seat.

1) represents the seat proper, and c represents the back. The seat proper has an areshaped slide 1) at each end, these slides pro jecting downward and bearing on the socketpieces a of the end plates a such socketpieces serving not only to carry the rockershaped slides b, but also serving as a means for efiecting connection between the parts a and a For guiding the movement of the rocker-slides b I provide a tongue a on the inner side of each end plate a These tongues a are slidably received in grooves 11 formed in the respective slides b. The tongues a are arc-shaped in conformity with the lower edge of the slides or runners b, so that the seat d may move evenly from the position shown in Fig. 1, in which the seat occupies its left-hand position, to the position in which the seat lies at the right-hand side of the base.

The back 0 is fastened to the upper ends of the two levers 0. These levers lie, respectively, at the sides of the base of the seat, be ing curved inward at their lower portions, as

indicated in Fig. 2, so that they lie snugly against their respective end plates a and end frames a. The lower end of each leveris forked, as indicated at c and this fork straddles a pin a, carried-by the adjacent end frame a. These pins form the fulcra of the levers and also allow the levers to move upward. Fulorumed to the inner sides of the end frames a are levers d, (only one of which is shown in the drawings.) These levers are fulcru med at the point (1, and each carries at its lower end a pivotally-mounted cross-head (1 having transverse pins or rollers d bearing against opposite sides of the levers c. As the levers c are thrown, in this instance carrying with them the back 0, they impart a swinging movement to the levers (1. These levers are connected at their upper ends to the seat I) through the medium of transverse pins (1", carried on the levers and engaged between lugs 6 formed on the slides or run hers I) of the seats. Thelugs, b serve also to limit the movement of the seat on the base, since said lugs are located between the socketpieces a and must strike the same at the limit of their movement. a or represent two lugs which are formed on each end plate a respectively, at the sides thereof. These lugs a limit the movement of the levers c. Now it is clear that both the seat and back may be readily reversed by throwing the levers c from one position to another. Assuming the parts to be in the position shown in Fig. 1, by throwing the back 0 with its lovers 0 to the left the upper ends of the levers 01 will be thrown to the right and will carry with them the seat proper, I), thus changing the position of both of the parts I) and c.

For the purpose of locking the parts so that they can not be accidentally thrown from one position to another I provide a transfer-shaft e, which is mounted loosely in the end plates a and extends under the seat proper from one end plate to the other. At each end the shaft e carries an arm e, which arms are arranged to swing within semicircular cavities a formed in the end plates of. The arms 6 are respectively connected with the levers c. For the purpose of permitting the levers d to move freely from one position to the other without interference with the shaft e the levers are formed, as indicated by the dotted lines in Fig. 1, with transversely-elongated loops (Z through which loops the shaft 6 passes. The normal position of the arms e being that shown in the drawings,it is clear that the levers 0' cannot be thrown unless they are first lifted, so as to throw the arms 8 to a position upward from the horizontal position. Therefore in order to reverse the seat it is necessary first to raise the back until the arms e pass the horizontal line. Then by pushing the back sidewise the reversal may be effected. As soon as the seat is reversed the parts will fall back to the position shown in Fig. l, and thus be locked against any accidental movement.

Having thus described my invention, I claim as new and desire to secure by Letters Patent l. The combination of a base, a seat reversibly mounted thereon, a back, a lever at each side oflhe base and in connection with lhe back, the levers being fulcrurned on the base and said fulcrum comprising a pivotal and slidable connection, connections between the seat and the levers to move the seat in unison with the levers, an arm pivotally mounted on each side of the base, said arms respectively having connection with the levers, and a shaft connecting the arms to gether, for the purpose specified.

2. The combination of a base, a seat reversibly mounted thereon, a back, a lever connected with the back and fulcrumed on the base, a second lever fulcrumed on the base and connected with the seat, and a cross-head pivotally carried on the second lover and hav- 'ing laterally-projected portions engaged with opposite sides of the first-named lever.

3. The combination of a base, a seat reversibly mounted thereon, a back, a lever attached to the back and having a slot receiving a part on the base whereby to fulcrum the lever and allow it a longitudinal movement in addition to its pivotal movement, a connection with the seat to work the seat with the lever, and. an arm mounted to swing on the base and connected withthe'lever.

4. The combination with a base, a seat reversibly mounted thereon, a back, a lever attached thereto and fulcrumed on the base, the fulcrum comprising a pivotal and slidable connection, a transverse shaft mounted on the base, an arm attached to the shaft and connected to the lever, a second lever ful crumed on the base and connected with the first-named lever and with the seat, said second lever being formedwith a transverselyelongated looped portion receiving the shaft.

5. The combination of a base, a seat reversibly mounted thereon, a lever fulcrumed on the base, the fulcrum comprising a pivotal and slidable'connection, a connection between the lever and seat, for the purpose specified, and an arm mounted to swing on the base and connected with the lever.

. 6. The combination of a base, a seat reversibly mounted thereon, a lever fulcru med on the base, said fulcrum comprising a pivotal and slidable connection, means bearing between the base and lever for causing the lever to move longitudinally simultaneously with its pivotal movement, and a second lever forming a connection between the first lever and the seat.

7. The combination of a base, a seat reversibly mounted thereon, a lever fulcrumed on the base, the fulcrum comprising a pivotal and slidable connection, means working between the base and lever to cause the lever to move longitudinally simultaneously with its pivotal movement, and a connection between the seat and lever to throw the seat simult-aneously with the movement of the lever.

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

LOUIS JANSON.

Witnesses: MYERS CURTIS, JosEPH SALOMON.

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