US172040A - Improvement in tilting chairs - Google Patents
Improvement in tilting chairs Download PDFInfo
- Publication number
- US172040A US172040A US172040DA US172040A US 172040 A US172040 A US 172040A US 172040D A US172040D A US 172040DA US 172040 A US172040 A US 172040A
- Authority
- US
- United States
- Prior art keywords
- improvement
- screw
- frame
- tilting chairs
- chairs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/07—Slide construction
- B60N2/0702—Slide construction characterised by its cross-section
- B60N2/0715—C or U-shaped
Definitions
- NFEIERS PHOTO'UTHDGRAPHER. WASHINGTON, D C,
- My invention is designed as an improvement upon the chair for which Letters Patent were granted me May 25, 1875; and consists in a new and improved method of securing the seat to the spring-frame, so as to admit of adj ustability and fastening when adjusted by the use of a single screw only.
- Figure 1 is a perspective view of the stand andspringframe.
- Fig. 2 is a sectional view 01 the center of the stationary stand, showing the construction and manner of attaching the devices which control and steady the central screw.
- A is the stationary stand; B, the adjustingscrew; and O the spring-frame, the latter consisting of side springs c c, spider c, and top plate O.
- I provide two plates, 1) D, the upper one having a cylindrical socket, d, to receive and guide the smooth part of the screw, as shown in Fig. 2, and the lower one having a socket,d, which is screw-threaded interiorly, as shown, to lit the threads of the screw.
- the plate D has projecting bosses at, fitting closely into bored recesses in the base A, to assist in holding the separate parts of the base together.
- the top plate 0 of the spring-frame is formed with a central slot, 6, and three projections, f.
- a plate, E is provided, secured to the chair-hottoln frame F, as shown in Fig. 4, from which plateacentral screw, G, projects, which passes through the slot 6, and is fitted with-a thumbnut, H.
- This plate E is provided also with long recesses g, which fit and slide over the projectionsf of the plate 0.
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chairs Characterized By Structure (AREA)
Description
ZShee-tsSheet 2.
J. LEM MAN. TIMING-0mm.
Patented Ian. 11,- 1876.
No.17 Z.040.
IIIIIII.
NFEIERS. PHOTO'UTHDGRAPHER. WASHINGTON, D C,
UNITED STATES PATENT OFFICE.
JOHN LEMMAN, OF CINCINNATI, OHIO.
IMPROVEMENT IN TILTING CHAIRS.
Specification forming part of Letters Patent No. 172,040, dated January 11, 1876; application filed October 28, 1875 To all whom it may concern:
Be it known that 1, JOHN LEMMAN, of Gincinnati, Hamilton county, State of Ohio. have invented Improvements in Reclining-Chairs, of which the following is a specification:
My invention is designed as an improvement upon the chair for which Letters Patent were granted me May 25, 1875; and consists in a new and improved method of securing the seat to the spring-frame, so as to admit of adj ustability and fastening when adjusted by the use of a single screw only.
In the accompanying drawings, Figure 1 is a perspective view of the stand andspringframe. Fig. 2 is a sectional view 01 the center of the stationary stand, showing the construction and manner of attaching the devices which control and steady the central screw.
Fig. 3 is an under side perspective view of theseat-frame. Fig. 4 is a sectional view of the springframe, seat-frame, and seat.
A is the stationary stand; B, the adjustingscrew; and O the spring-frame, the latter consisting of side springs c c, spider c, and top plate O. In order to firmly secure and guide the screw B, without exposing its screwthreads above the base A, I provide two plates, 1) D, the upper one having a cylindrical socket, d, to receive and guide the smooth part of the screw, as shown in Fig. 2, and the lower one having a socket,d, which is screw-threaded interiorly, as shown, to lit the threads of the screw. The plate D has projecting bosses at, fitting closely into bored recesses in the base A, to assist in holding the separate parts of the base together. The top plate 0 of the spring-frame is formed with a central slot, 6, and three projections, f. A plate, E, is provided, secured to the chair-hottoln frame F, as shown in Fig. 4, from which plateacentral screw, G, projects, which passes through the slot 6, and is fitted with-a thumbnut, H. This plate E is provided also with long recesses g, which fit and slide over the projectionsf of the plate 0. By the provision of'the slot 6 and screw G the chairbottom may be adjusted with reference to the springs to suit the weights of dififerent persons, and secured at any point of adjustment by the nut H, the projections and recesses f 9 serving to properly guide the chair-bottom during the process of adjustment. The leverage of the seat-frame on the springs being increased or diminished by this adjustment
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US172040A true US172040A (en) | 1876-01-11 |
Family
ID=2241447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US172040D Expired - Lifetime US172040A (en) | Improvement in tilting chairs |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US172040A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2537071A (en) * | 1945-07-30 | 1951-01-09 | Charles F Lukins | Chair having spring supported seat and back |
-
0
- US US172040D patent/US172040A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2537071A (en) * | 1945-07-30 | 1951-01-09 | Charles F Lukins | Chair having spring supported seat and back |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NO149608B (en) | DEVICE OF THE BACKGROUND | |
| US595450A (en) | Chair attachment | |
| US376593A (en) | Henby b | |
| US3441313A (en) | Mechanism for adjusting the backrest of seats in vehicles | |
| US594679A (en) | Mechanism for spring-back chairs | |
| US120110A (en) | Improvement in photographic posing-chairs | |
| US395975A (en) | Attachment for chairs | |
| US282737A (en) | liscomb | |
| US659052A (en) | Head-rest. | |
| US155823A (en) | Improvement in piano-pedal attachments | |
| US1137903A (en) | Dental chair. | |
| US113967A (en) | Improvement in revolving chairs | |
| US96211A (en) | Improved rocking-chair | |
| US669253A (en) | Back-rest for stools, chairs, or seats. | |
| US822701A (en) | Bench for use in playing musical instruments. | |
| US439403A (en) | eouahton | |
| US53038A (en) | Chair for photographic purposes | |
| US118991A (en) | Improvement in tables and stands | |
| US93662A (en) | Improved bead-rest for dentists and barbers chairs | |
| US59457A (en) | Improved adjustable back for stools | |
| US116808A (en) | Improvement in oil-cans | |
| US54762A (en) | Improved chair | |
| US704498A (en) | Foot-rest and pedal extension for pianos. | |
| US354259A (en) | Photographer s chair | |
| US274375A (en) | Detachable and adjustable seat-back |