US629258A

US629258A - Ball-bearing car-seat.

Info

Publication number: US629258A
Application number: US71022299A
Authority: US
Inventors: John S Johnston
Original assignee: Pottier & Stymus Co
Current assignee: Pottier & Stymus Co
Priority date: 1899-03-23
Filing date: 1899-03-23
Publication date: 1899-07-18
Anticipated expiration: 1916-07-18

Description

No. 629,258. Patented July 18, 1899.

'J. SJJDHNSTON. BALL BEARING CAR SEAT.

[Application filed Mar. 23, 1899.1

Nu Modem UNITED STATES PATENT OF CE.

JOHN S. JOHNSTON,OF NEW YORIQN. Y.', ASSIGNOR TO THE POTTIER 8r;

- STYMUS COMPANY, OF SAME PLACE.

BALL-BEARING CAR-SEAT.

SPEGIFICATIONfOrming part of Letters .iPatent No. 629,258, dated July 18, 1899.

Application filed March 28, 1899.

new and useful Improvements in Ball-Bearing Car-Seats, ofwhich the. following is a specification. I 1

My invention relates to. car-seats, and particularly to means for supporting and guid- Io ingth'e striker-arms to permit them to shift from one side of the seat to the other.

It is the object of myinvention to provide such a supporting and guiding means'as will allow the shifting of the striker-arms and I 5 back to be performed with greatest ease; and

with this end in view my invention includes ball-bearing supporting and guiding means for the striker-arms.

My invention therefore comprises a ballbearing car-seat, and the features thereof are' shown in the accompanying drawings, in which- Figure 1 is a side elevation of part of the supporting-frame with the striker-arms and attached parts, some of the parts being re- Fig. 2 is a front view of the lower moved.

part of the seat. Fig. 3 is a detail sectional view.

The striker-arms 1 are attached to the sides of the back in any ordinary manner. The

seat-frame is provided with, curved guide ways 2, and these, as shown in Fig. 3, are of tubular form in cross-section. The strikerarms pass down through these tubular guides,

3 which have flanges 3 4 at their upper and lower edges, between which the striker-arms move. At an intermediate point on each striker-arm lateral extensions 5 are formed,

and located within the tubular guides and on 0 the ends of these lateral extensions the ballbearings are placed, which consist of a divided sphere or ball 6, fitted to the cylindrical interior of the guideway. The sections of the ball turn freely on a pin 7,which is fixed 5 in the striker-arm. Between thesesections of a ball and the striker-arms ball-bearings 8, are formed by circular grooves in the meet 7 ing faces of the striker-arms and ball-sections, said grooves containing the antifric- 5o tion-balls 9,. By means of this ball-bearing supporting and guiding means there will be $erial No. 710,222. (No model.)

no binding action between the striker arm and its guideway, and the seat may be shifted from one sideto the other with the slightest efiort.

On the outer side of the guideway a track 10 is formed or provided, and upon this track a roller 11 runs, which roller is carried byv a pin 12 won the striker-arms. The striker-arms extend downwardly and have a cross-bar 13 at their lower ends, which isengaged by slotted levers 14, pivoted to the car-frame at 15 and carrying a foot-rest 16. I

It will be seenfrointhe above that adouble ball-bearing effect is secured by the largedivided sphere or ball 6 and by the rolling sections of this inconnection with-the balls 8;

Theuse of the sphere is of particular advantage in preventing binding at the ends of the seat in case the force used in shifting the back is not applied at both ends or at the middle of the back.

The guideways inclose the'ball-bearin gs and hide them from view.

I claim as my invention- 1. In combination, in a car-seat, the frame, the guideways, the seat-back, the strikerarms, one at each end of the seat, and means for preventing binding of either striker-arm in its guideway should one end of the seatback be moved in advance of the otheigsaid means consisting of ball-bearin gs one at each end of the'seat-back presenting 'a spherical,

surface between each striker-arm and each guidewa'y, substantially as described.

2. In combinationin a ball-bearin g carseat,

the tubular guideways, the striker-arms passing through the same, the divided sphere carried by the striker-arms and fitted to the interior of the tubular gnides-ahd the ball-bear ings between the parts of the sphere and the striker-arms, substantially as described.

3. In combination in a car-seat, the frame having the guideway, the striker-arm, a rolling section loosely journaled on said strikerarm and having one face lying adjacent to said striker-arm and its other face of spherical form and the antifriction-balls between the adjacent faces of the striker-arm and rolling section substantially as described.

4. In combination in a car-seat, the frame having the tubular guideway, the striker-arm passing through said guideway, a pin on the striker-arm, rolling sections one on each side of the striker-arm journaled loosely on the pin and having spherical surfaces fitted to the tubular guideway and ball-bearings between the adjacent faces of the striker-arms and the rolling sections, substantially as. described.

5. In combination in a car-seat, the seatframe having the hollow or tubular guideway thereon, the striker-arm passing through the guideway, the antifriction-bearing Within the hollow guideway, a track on the outer side of the guideway and a roller carried by the said striker-arm and engaging said track, substantially as described.

6. In combination, the car-seat frame having guideways, the striker arm passing through said guideway, a rollingsection on each side of said striker-arm, each adapted to have independent turning movement, a pin carried by the said striker-arm and upon Which said rolling sectionsare loosely journaled and ball-bearings between the adjacent faces of said rolling sections and the strikerarms, substantially as described.

7. In combination, the seat-frame, the seat and striker-arms mounted thereon, the back I carried by the striker-arms, the hollow guideways through which the striker-arms extend through the guideways and a ball-bearing at each end of the car-seat between each strikerarm and its guideway, said ball-bearings pre- I senting spherical surfaces on each side of the striker-arm and between the same and each side of the guideway, substantially as described.

9. In combination in a car-seat, the seatframe, the guideways-one at each end thereof,

the seat-back,the striker-arms connected with 45 the seat-back andv passing through the guide- Ways and. a ball-bearing at each end of the seat between each striker-arm and its guide- Way, each of said. ball-bearings comprising a roller-section on each side of the striker-arm, said roller-sections having spherical surfaces, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN S. JOHNSTON.

Witnesses:

HENRY E. COOPER, F. HALL.