US144664A - Improvement in springs for chairs - Google Patents
Improvement in springs for chairs Download PDFInfo
- Publication number
- US144664A US144664A US144664DA US144664A US 144664 A US144664 A US 144664A US 144664D A US144664D A US 144664DA US 144664 A US144664 A US 144664A
- Authority
- US
- United States
- Prior art keywords
- chairs
- springs
- improvement
- plate
- toes
- 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
- 210000003371 toe Anatomy 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
Definitions
- a nut, E that receives the screw D, which passes down through a metallic bush, F.
- a plate or head, G To the upper end of the screw D is rigidly attached a plate or head, G. H are two rubber blocks, one upon each side of the'plate C.
- a plate, I Upon the screw D, and below the lower block H, is placed a plate, I, which is held up by a nut, J.
- the rubber blocks H may be kept from turning by toes K formed upon the plates G I, said toes entering notches in blocks H.
- the toes or projections K when the chair is oscillated, press laterally against the rubber, and thus make the spring more eicient.
- center piece D elastic blocks H H, and plates G I, as and for the purpose described.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Vibration Prevention Devices (AREA)
Description
wf T. Donemus Springs for Chairs, &c.`
N0 144,65@ Patented Nov. 18,1873.
J i N a J l s E f I :25:1 f1
UNITED STATEs PATENT OFFICE.
WILLIAM T. DoEEMUs, oF NEw YORK, N. Y.
IMPROVEMENT IN SPRINGS FOR CHAIRS, &c.
Specification forming part of Letters Patent No. 144,664, dated November 18, 1873 application filed Y August 30, 1873.
To all whom it may concern:
Be it lmown that I, WILLIAM T. DoREMUs, of the city, county, and State of New York, have invented a new and useful Improvement in Springs for Chairs 5 and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had elongated to admit of the oscillation of seat.
To the top of the base A is attached a nut, E, that receives the screw D, which passes down through a metallic bush, F. To the upper end of the screw D is rigidly attached a plate or head, G. H are two rubber blocks, one upon each side of the'plate C. Upon the screw D, and below the lower block H, is placed a plate, I, which is held up by a nut, J. The rubber blocks H may be kept from turning by toes K formed upon the plates G I, said toes entering notches in blocks H. The toes or projections K, when the chair is oscillated, press laterally against the rubber, and thus make the spring more eicient.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-
The combination of slotted rocking plate C,
center piece D, elastic blocks H H, and plates G I, as and for the purpose described.
WILLIAM T. DOREMUS. Witnesses:
T. B. Mosnnn, ALEX. F. RoBERTs.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US144664A true US144664A (en) | 1873-11-18 |
Family
ID=2214077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US144664D Expired - Lifetime US144664A (en) | Improvement in springs for chairs |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US144664A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6176548B1 (en) | 1998-10-23 | 2001-01-23 | Haworth, Inc. | Tilt mechanism for chair having adjustable spring characteristics |
| US6209958B1 (en) | 1998-10-23 | 2001-04-03 | Haworth, Inc. | Universal tilt mechanism for a chair |
| US12108882B2 (en) * | 2021-10-01 | 2024-10-08 | Kokuyo Co., Ltd. | Chair having a movable seat |
| US12114784B2 (en) * | 2021-10-01 | 2024-10-15 | Kokuyo Co., Ltd. | Chair having a movable seat |
| US12245702B2 (en) * | 2021-10-01 | 2025-03-11 | Kokuyo Co., Ltd. | Chair having a movable seat |
-
0
- US US144664D patent/US144664A/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6176548B1 (en) | 1998-10-23 | 2001-01-23 | Haworth, Inc. | Tilt mechanism for chair having adjustable spring characteristics |
| US6209958B1 (en) | 1998-10-23 | 2001-04-03 | Haworth, Inc. | Universal tilt mechanism for a chair |
| US12108882B2 (en) * | 2021-10-01 | 2024-10-08 | Kokuyo Co., Ltd. | Chair having a movable seat |
| US12114784B2 (en) * | 2021-10-01 | 2024-10-15 | Kokuyo Co., Ltd. | Chair having a movable seat |
| US12245702B2 (en) * | 2021-10-01 | 2025-03-11 | Kokuyo Co., Ltd. | Chair having a movable seat |
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