US297108A - William i - Google Patents
William i Download PDFInfo
- Publication number
- US297108A US297108A US297108DA US297108A US 297108 A US297108 A US 297108A US 297108D A US297108D A US 297108DA US 297108 A US297108 A US 297108A
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- US
- United States
- Prior art keywords
- springs
- brackets
- spring
- platform
- bracket
- 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
- 238000005266 casting Methods 0.000 description 6
- 241000273930 Brevoortia tyrannus Species 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 101710030697 SPRING1 Proteins 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/02—Rocking chairs
- A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
- A47C3/027—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame with curved rocking members between seat and base frame
Definitions
- the object of my invention is to provide heavy rocking-chairs with suitable springs, and to this end the invention consists in provid- 1o ing the chair with a double bracket on either side, such bracket having coiled therein two large stiff springs, in making one of said springs of lighter wire than the other, and in providing a lu g on' said bracket to form a pivot or bearing to lessen the friction of the spring.
- Figure l shows my improved 'spring attached to the inner faces of the rocker and base-rail of a platform rocking-chair.
- Fig. 2 is a vertical 2o sectional view ot' the springs detached;
- Fig. 3 is a broken section of one of the springcoils, showing the lug for lholding the spr-ing vout from the casting, as hereinafter described.
- Double brackets AA are provided for each side of the chairA and secured 3o totherockerandbase-rail,respectively. These brackets are provided with an annular rib or flange cast on the inside face of the bracket, and provided with a stop at the end of the rib, against which the end coil of the spring rests.
- brackets are coiled two broad stiff springs, B B, their ends being securely held by the annular rib or flange on brackets A.
- This double bracket is cast in one piece,
- brackets A A and coil-wire spring 8o B said brackets provided with a lug, C, substantially as described, and for the purpose set forth.
- VILLIAM I. BUNKER VILLIAM I. BUNKER.
Description
(N0 Model.)
I W' I- BU-NKER,
SPRING'ATTAGMNT FOR PLATFORM ROGKING CHAIRS. No.` 297,108. Patented A131222., 1884.
N. Pneus. mwmgnpnen wnsluugwn. u4 c STATES NITE WILLIAM I. BUNKER, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO JACOB BEIERSDORF, OF SAME PLACE.
SPRING ATTACHMENT FOR PLATFORM ROCKlNG-YCHAIRS.
SPECIFICATION forming part of Letters Patent No. 297,108, dated April 22, 1884.
Application tiled July 27, 1883.
To all whom it may concern:
Be it known that I, WILLIAM I. BUNKER, of Chicago, Illinois, have invented certain new and useful Improvements in Spring Attachments for Platform Rocking-Chairs, of which the following is a specification.
The object of my invention is to provide heavy rocking-chairs with suitable springs, and to this end the invention consists in provid- 1o ing the chair with a double bracket on either side, such bracket having coiled therein two large stiff springs, in making one of said springs of lighter wire than the other, and in providing a lu g on' said bracket to form a pivot or bearing to lessen the friction of the spring.
In the accompanying drawings, Figure l shows my improved 'spring attached to the inner faces of the rocker and base-rail of a platform rocking-chair. Fig. 2 is a vertical 2o sectional view ot' the springs detached; and
Fig. 3 is a broken section of one of the springcoils, showing the lug for lholding the spr-ing vout from the casting, as hereinafter described.
A Aare the castings which hold the springcoils, B B the spring-coils, and C the shoulder or lug on the casting A, which holds the upper and lower coils of the springs away from the face of the castings. Double brackets AA are provided for each side of the chairA and secured 3o totherockerandbase-rail,respectively. These brackets are provided with an annular rib or flange cast on the inside face of the bracket, and provided with a stop at the end of the rib, against which the end coil of the spring rests.
Vithin these brackets are coiled two broad stiff springs, B B, their ends being securely held by the annular rib or flange on brackets A. This double bracket is cast in one piece,
and when provided with two heavy springs 4o will furnish a safe and strong attachment for heavy chairs. No stops or side flanges will 4be required to prevent lateral displacement of the rockers. The springs are coiled into the brackets before the latter are secured to (No model.)
upward and downward than the rear portion, 5o
I find it desirable to construct the rear spring of a somewhat larger wire than the front spring. This permits a longer sweep'of the front ends of the rockers, and by the increased strength given the rear spring prevents the displacement lof the rockers or the liability of the breaking of said spring.
To overcome the friction produced by the rubbing of the end coils of the springs against the brackets when in use, I have reduced the 6o bearing-surface ofsuch end coils on such brackets to a minimum by casting on the inside of the bracket, behind the end coils, a shoulder or lug, (marked Cin the drawings) which lug prevents contact of the springs and brackets, and thus avoids the friction between them and the rasping noise incident thereto.
I claiml. The double brackets A A, having coiled therein the springs B B, as a new manufacture 7o fQr attachment to platform rocking-chairs,substantially as and for the purpose described.
2. In a platform rocking-chair, the combination, with the rocker and base-rail, of the brackets A A and coil-springs B B', one of 75 said springs being constructed of lighter wire than the other, substantially as described, and for the purpose set forth.
3. The combination, in a platform rockingchair, of the brackets A A and coil-wire spring 8o B, said brackets provided with a lug, C, substantially as described, and for the purpose set forth.
VILLIAM I. BUNKER.
Vitnesses:
THOMAS A. BANNING, CHAs. C. LINTHIGUM.
Publications (1)
Publication Number | Publication Date |
---|---|
US297108A true US297108A (en) | 1884-04-22 |
Family
ID=2366294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US297108D Expired - Lifetime US297108A (en) | William i |
Country Status (1)
Country | Link |
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US (1) | US297108A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2444604A (en) * | 1944-05-27 | 1948-07-06 | Floyd C Hawkins | Seat mounting |
US2896225A (en) * | 1956-10-19 | 1959-07-28 | Tonkin Josephine | Crib rocker |
US20100219321A1 (en) * | 2008-05-02 | 2010-09-02 | Ryuhei Tanabe | Bookrack |
-
0
- US US297108D patent/US297108A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2444604A (en) * | 1944-05-27 | 1948-07-06 | Floyd C Hawkins | Seat mounting |
US2896225A (en) * | 1956-10-19 | 1959-07-28 | Tonkin Josephine | Crib rocker |
US20100219321A1 (en) * | 2008-05-02 | 2010-09-02 | Ryuhei Tanabe | Bookrack |
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