Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS1517774 A
Publication typeGrant
Publication dateDec 2, 1924
Filing dateJul 10, 1923
Priority dateJul 10, 1923
Publication numberUS 1517774 A, US 1517774A, US-A-1517774, US1517774 A, US1517774A
InventorsDuprey Louis J
Original AssigneeDuprey Louis J
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Theater seating equipment
US 1517774 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

L. J. DUPREY THEATER SEATING EQUIPMENT 2 Sheets-Sheet 1 Filed July 10, 1923 D 2, 1924. 7 1,517,774 L. J. DUPREY THEATER SEATING EQUIPMENT Filed July 10, 1923 2 Sheets-Sheet 2 if 77 LXI Patented Dec. 2, 1924.



Application filed July 10, 1923. Serial. No. 650,596.

their normal position in the auditorium to a sub-chamber or lobby which constitutes a loading compartment.

A principal object of the' invention is to provide a seating arrangement of this character which permits any patron of the theater to enter or leave his place without at all disturbing other patrons.

A further object of the invention is to provide means whereby all of the seats of the auditorium may be simultaneously low ered in. case of fire or other panic to an exit sub-chamber that is preferably of completely fireproof construction and that is also arranged for most convenient whosesale exit to of persons therefrom.

Further objects are to enhance the per sonal comfort of patrons, to avoid any obstruction to the view at any time, and to provide a convenient clothes-rack. I I The foregoing and other objects and advantages of the invention will-be better understood from the following detailed description taken in connection with the accompanying drawings, and the distinctive to features of novelty will be thereafter pointed out in the appended claims.

Referring to the drawings wherein like characters indicate like parts in each of the several views Figure 1 is a perspective view with por tions broken away and in section showing an auditorium having a seating equipment embodying .the' invention;

Fig. 2 is a partial side view and vertical section illustrating the manner of mounting and operating the individual chairs, and

Fig. 3 is a fragmentary perspective view of an operating detail.

10 indicates an auditorium or assembly room of a theater or like blage. I

In accordance with my invention a subchamber or lobby 11, constituting a loading compartment, is provided directly underneath the auditorium. This lobby or loading compartment may be located at approximately the street level, and has extending along the sides thereof corridors 12, 13. Doors 14 open outward from these corridors, preferably in alignment with each row of seats, and other doors 15 open into these corridors from the lobby or loading compartment 11, also preferably at the locality of each row of seats.

In practice it is contemplated that these doors 14, 15 will constitute exits from the chamber 11, while for ingress into the theaplace of assemter patrons would be required to enter the corridors 12, 13 from a front entrance with a usual ticket gate (not shown).

In accordance with my invention, the floor 16 of the auditorium 10 isprovided at the locality of the several seats with trap doors 17, hinged at the front thereof as indicated at 18 and adapted to fit into rabbeted seats 19 to normally close openings 20 through the floor into the loading compartment 11. The individual chairs 21 are equipped withbases 22 normally closing these openings, and each chair with its base 22 is mounted for vertical movement at the upper end of a plunger 23. This plunger is equipped with a piston head 23 at its lower end which fits in a cylinder 24, the series of cylinders 24 with the operating connections therefor to be described, being shown as housed in a basement underneath the loading compartment 11.

The range of vertical movement thus provided for the chairs 21 is such that at the upper limit thereof they'are located in proper position in the auditorium 10.with the bases 22 in alignment with the floor of the auditorium, while when in fully lowered position they rest upon the floor of the lobby or loading compartment 11.

The series of cylinders 24 have pipe connections 25 to the lower ends'thereof, to receive hydraulic pressure from a main 26 which is connected with .a reservoir 27 that may be kept supplied with hydraulic pres sure to the requisite degree by a suitable pump 28 and electric or other motor 29.

A turning valve 30 is provided in the pipe connection 25 from the pressure main to each cylinder for controlling the inlet of fluid pressure to the cylinder. This valve is operated by a. rod composed of squared telescopic sections 31, 31 with the upper section 31 held at the side of the seat which it controls, and equipped at its top with a suitable handpiece 31 The operating rod section 31 is provided neai its lower end with a short arm 32 to which is connected a link 33, the other end of which is engaged with an arm 34 of an exhaust valve 35, also applied to the pipe connection 25.

It will be understood that this operating connection is so arranged that when the valve 30 is open to supply fluid pressure to the cylinder the exhaust valve 35 is closed, and vice versa.

It is desirablethat means he provided for automatically opening the trap door 17 associated with a given chair, as such chair starts on its upward movement. For this purpose I rovide rods 36, pivotally engaged at 3 with the lower sides of the trap doors some distance outward from the hinges 18 thereof. These rods 36 extend downward with piston heads 38, at the lower ends thereof which operate in small cylinders 39 associated with the respective cylinders 24 and having fluid pressure connections 40 leading from the piping 25.

Thusuponv opening-the pressure valve 30,

. and as the seat 21 controlled thereby starts to rise from the bottom of the loading compartment 11, the ingress of fluid pressure to the small cylinder 39 will first open the trap door 17 before the chair has had time to rise to any considerable extent, and before it nears the'opening 20 of the auditorium floor.

The pressure main 26 is preferably provided with a hand-operated exhaust valve '41 which may be opened in emergency, or

as desired, to permit all the seats tobe lowered simultaneously from the auditorium into the lobby or loading compartment.

For guarding the operatin mechanism of the several chairs when sald chairs are raised from the loading compartment, suitable guard frames 42 are provided extending around such operating mechanism, and adapted to be yieldingly pressed. down through the floor 43 of the loading compartment when the chairs are lowered thereinto.

For this purpose these guard frames extend down through the floor 43 with outturned lower ends 42 thereof engaged by tension springs-44 which are anchored to the floor, and which thus tend normally to hold the frames 42 at their upper limit of movement, as indicated at the rlght in Fig ure 2, while when a chair is lowered upon the floor 43, the guard frame associated therewith is pressed downward as indicated at the left in said figure.

The pressure main 26 and reservoir 27 maybe provided with a'suitable pressure the theater and find their seats, upon turning the handpiece 31", the seat is moved quickly but gently upward into the auditorium.

During a performance, any seat occupant may depart by merely turning the handpiece 31, causing the seat to be lowered into the lobby or loading compartment, and in like manner he may again re-enter the auditorium without in anywise disturbing, or interfering with the view of, other patrons.

I am aware that the invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and I therefore desire the present embodiment to be considered as illustrative and not restrictive, reference being had to the appended claims rather than to the foregoing description to indicate the scope of the invention.

Having described my invention, what I claim is new and desire to secure by Letters Patent is 1. Theater seating equipment comprising an auditorium, a lobby or loading compartment located thereunder, and fluid pressure means under the control of the occupant for raising the seats individually from said loading compartment to the auditorium at will.

2. Theater seating e uipment comprising an assembly room, a 10 by or loading compartment located thereunder, seats each having a fluid pressure plunger associated therewith for raising the same from said loading compartment to the assembly room at will, and means located in roximity to the respective seats for controlling said fluid pressure plungers.

3. Seating equipment comprising an auditorium, a. loading compartment located thereunder, seats mounted for individual movement vertically into said loadin compartment or said auditorium at wil fluid pressure means under the control of the occupant for operating said seats individually and a trap door associated with each seat so controlled by said fluid pressure means.

4. Theater seating equipment comprising an auditorium, a loading compartment located thereunder, seats borne by vertical plungers for movement upward into said auditorium or downward into said loading compartment at will, fluid pressure connec tions for operating said plungers having individual controlling means associated with the respective seats, and means permitting all 1the seats to be lowered simultaneously at wil 5. Seating equipment comprising chairs mounted on fluid pressure plungers for vertical movement upward into an auditorium or downward into a loading compartment at will, fluid pressure connections for operating said plungers having individual controlling means associated with the respective chairs, and trap doors equipped to also constitut'e clothesracks associated with the respective chairs.

6. Theater seating equipment comprising an auditorium, a loading compartment located thereunder, chairs mounted for movement upward into said auditorium or downward into said loading compartment at will, trap doors associated with said chairs in said auditorium, fluid pressure mechanism for operating said chairs and also said trap doors, and guard frames yieldingly mounted in said loading compartment and associated with said fluid pressure mechanism.

In testimony whereof, I have hereunto subscribed my name this 22nd day of June,


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2836127 *Dec 27, 1954May 27, 1958Finishine Lab IncApparatus for selectively moving support members
US3166799 *Feb 2, 1961Jan 26, 1965Birnkrant MiltonInflatable furniture arrangements
US3263380 *Dec 24, 1963Aug 2, 1966Marcel-Alain BourbonnaisArchitecture of theatres
US3394505 *Jan 30, 1967Jul 30, 1968Corwin S. RifeTheater construction with movable seats
US4642945 *Jul 3, 1985Feb 17, 1987Cinemotion Pty. Ltd.Entertainment structure
US5271190 *Feb 11, 1993Dec 21, 1993Kabushiki Kaisha KotobukiApparatus for opening and closing covering means for furniture raising/lowering type floor equipment
US5765314 *Oct 3, 1996Jun 16, 1998Giglio; Vincent S.Sensory interactive multi media entertainment theater
US5829201 *Apr 15, 1997Nov 3, 1998Universal City Studios, Inc.Theater with seat and wheelchair platform movement
US5913776 *Jun 4, 1997Jun 22, 1999Compagnone; RoccoVariable-slope tier devices allowing the configuration of a sports stadium or auditorium to be changed
US7172245Jul 19, 2001Feb 6, 2007Gestion Laforest Inc.Removable seats system
US8490335Nov 20, 2009Jul 23, 2013Gestion Laforest Inc.Removable seats system
US9163420 *Mar 4, 2014Oct 20, 2015Sti Serapid GroupAuditorium seating
US20040051354 *Jul 19, 2001Mar 18, 2004Paul-Andre BouchardRemovable seats system
US20060232582 *Apr 15, 2005Oct 19, 2006Fannon Matthew JVirtual reality theater
US20110215621 *Nov 20, 2009Sep 8, 2011Laforest PierreRemovable seats system
US20150068132 *Mar 4, 2014Mar 12, 2015Sti Serapid GroupAuditorium Seating
EP0488308A1 *Nov 28, 1991Jun 3, 1992Kabushiki Kaisha KotobukiAn apparatus for opening and closing covering means for a furniture raising/lowering floor equipment
U.S. Classification52/10, 52/30, 297/15
International ClassificationE04H3/30, E04H3/10
Cooperative ClassificationE04H3/30
European ClassificationE04H3/30