US570425A - Spring bed-bottom - Google Patents
Spring bed-bottom Download PDFInfo
- Publication number
- US570425A US570425A US570425DA US570425A US 570425 A US570425 A US 570425A US 570425D A US570425D A US 570425DA US 570425 A US570425 A US 570425A
- Authority
- US
- United States
- Prior art keywords
- trusses
- spring bed
- springs
- arched
- bars
- 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
- 238000010276 construction Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000006011 modification reaction Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000000994 depressed Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002459 sustained Effects 0.000 description 2
- 238000004642 transportation engineering Methods 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
- A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
- A47C23/04—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using springs in compression, e.g. coiled
- A47C23/05—Frames therefor; Connecting the springs to the frame ; Interconnection of springs, e.g. in spring units
Definitions
- the rst part of my invention consists in forming the spring bed-bottom of a series of arched trusses, each one of which consists of an upper arched member, a lowerchord ortierod,and vertical posts, and in erecting on such trusses volute springs.
- the second part of the invention consists in making the arched-truss bed-bottom in two parts, hinged together, whereby it may be folded for convenience in transportation.
- FIG. l is a top view of the improved spring bed-bottom.
- Fig.' 2 is a cross-section of Fig. l, taken on the dotted line :n fr.
- Fig. 3 is an enlarged View of a portion of Fig. 2.
- Fig. 4 is a top view of the invention embodying certain modifications hereinafter described.
- Fig. 5 is a section of Fig. 4, taken on the dotted lines y y.
- A represents the rails of the bedstead, or those parts thereof which support the bed-bottom.
- the said rails are shown in section and have the ordinary bar construction.
- B B are trusses, consisting of the arched member a, the chord or ⁇ the tie-rod l), and the vertical posts c.
- the ends of the arched members ci., beyond the tie-bars, are turned up and then outward, as shown in Figs. 2 and 3.
- the trusses are placed at a proper distance apart and connected by the longitudinally-extending flat side bars d at their ends, and the intermediate flat bars e rest on and are riveted to the upper surface of the trusses, as shown in Fig. 3.
- the tie-bars are springs erected and secured by rivets to the ⁇ longitudinallyextending iiat bars d ande.
- All the springs on the bars e are of a common length; but the ones on the bars d are shorter, so that the curvature of the general line of the upper ends of the springs will be concentric with the top of the trusses.
- the springs are looped together by the wire links D, and around the whole is an endless binding-wire E, secured to the exterior springs by links F.
- edges of the mattress (shown only in dotted lines in Fig. 3) are sustained by the short springs and also by the binding-Wire, so that when the edges are depressed their movement is communicated to every spring in the bottom.
- arched trusses being rigid, they require no support other than the rails of the bedstead.
- the arched members of the trusses and the tie-rods are in two parts, hinged together at f, so that the bottom may be folded by bending the lateral edges thereof down in the direction indicated by the dotted arrows in Fig. 5.
- the springs at either side of the longitudinal center line of the bottom are not connected together by links, as are the others, but to the bindingwire frame only, which is made in two complete sections, as shown in Fig. 4.
- the bottom is also devoid of the short volute springs; but the edges of the mattress are supported by the binding-Wire frame, as shown in the construction first described.
- a spring bed-bottom the combination of a series of arched trusses tied together to form the base, the ends of the arched members of the trusses being turned up and outward, and a series of inverted conical volute springs erected on the said trusses, the springs at the lateral edges of the bottom being mounted on the oset ends of the trusses, substantially as specified.
Description
-QNO Modem f 2 Sheenasheet 1.
` F. DE W.GOLVI'N.
SPRING BED BOTTOM.
No. 57o;4z5. l Patented oct. 2j?, 1896.
@Qa/2 Mw M www,
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('No Model.)
No. 570,425. Patented 0013.27, 1896.
-VVi-T- NEEEEE- CQMKOZM UNITED STATES ATENT OFFICE.
FRANK DE VITT COLVIN, OF BALTIMORE, MARYLAND, ASSIGNOR OF ONE- I'IALF TO THE FOSTER BROTHERS MANUFACTURING COMPANY OF BAL- TIMORE CITY, OF MARYLAND.
SPRING BED-BOTTOM.
SPEGIFGATION forming part of Letters Patent No. 570,425, dated October 2'7, 1896.
Application filed July 6, 1896. Serial No. 59 8,125. (No model.)
To al?, whom, t may concer/t:
Be it known that I, FRANK Dn Wrrr GoL- VIN, of the city of Baltimore and Stateof Maryland, have invented certain Improvements in Spring Bed-Bottoms, of which the following is a speciiication.
The rst part of my invention consists in forming the spring bed-bottom of a series of arched trusses, each one of which consists of an upper arched member, a lowerchord ortierod,and vertical posts, and in erecting on such trusses volute springs.
The second part of the invention consists in making the arched-truss bed-bottom in two parts, hinged together, whereby it may be folded for convenience in transportation.
In the further description of the said invention which follows reference is made to the accompanying drawings, forming a parthereof, and in Which- Figure l is a top view of the improved spring bed-bottom. Fig.' 2 is a cross-section of Fig. l, taken on the dotted line :n fr. Fig. 3 is an enlarged View of a portion of Fig. 2. Fig. 4 is a top view of the invention embodying certain modifications hereinafter described. Fig. 5 isa section of Fig. 4, taken on the dotted lines y y.
Referring now to Figs. l, 2, and 3 of the drawings, A represents the rails of the bedstead, or those parts thereof which support the bed-bottom. The said rails are shown in section and have the ordinary bar construction.
B B are trusses, consisting of the arched member a, the chord or `the tie-rod l), and the vertical posts c. The ends of the arched members ci., beyond the tie-bars, are turned up and then outward, as shown in Figs. 2 and 3. The trusses are placed at a proper distance apart and connected by the longitudinally-extending flat side bars d at their ends, and the intermediate flat bars e rest on and are riveted to the upper surface of the trusses, as shown in Fig. 3. The tie-bars are springs erected and secured by rivets to the \longitudinallyextending iiat bars d ande.
All the springs on the bars e are of a common length; but the ones on the bars d are shorter, so that the curvature of the general line of the upper ends of the springs will be concentric with the top of the trusses.
The springs are looped together by the wire links D, and around the whole is an endless binding-wire E, secured to the exterior springs by links F.
It will be seen that the edges of the mattress (shown only in dotted lines in Fig. 3) are sustained by the short springs and also by the binding-Wire, so that when the edges are depressed their movement is communicated to every spring in the bottom.
The arched trusses being rigid, they require no support other than the rails of the bedstead.
In the modification illustrated in Figs. 4 and 5 the arched members of the trusses and the tie-rods are in two parts, hinged together at f, so that the bottom may be folded by bending the lateral edges thereof down in the direction indicated by the dotted arrows in Fig. 5. To admit of this folding, the springs at either side of the longitudinal center line of the bottom are not connected together by links, as are the others, but to the bindingwire frame only, which is made in two complete sections, as shown in Fig. 4. The bottom is also devoid of the short volute springs; but the edges of the mattress are supported by the binding-Wire frame, as shown in the construction first described.
I claim as my inventionl. In a spring bed-bottom, the combination of a series of arched trusses tied together to form the base, the ends of the arched members of the trusses being turned up and outward, and a series of inverted conical volute springs erected on the said trusses, the springs at the lateral edges of the bottom being mounted on the oset ends of the trusses, substantially as specified.
2. In a spring bed-bottom, the base thereof formed of a series of arched trusses in two parts hinged together, substantially as speciied.
FRANK DE WITT COLWN. Witnesses WM. T. HOWARD, DANL. Frsnnn.
.sa A
Publications (1)
Publication Number | Publication Date |
---|---|
US570425A true US570425A (en) | 1896-10-27 |
Family
ID=2639128
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US570425D Expired - Lifetime US570425A (en) | Spring bed-bottom |
Country Status (1)
Country | Link |
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US (1) | US570425A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3971081A (en) * | 1974-03-14 | 1976-07-27 | Sealy, Incorporated | Box spring unit with metal slats |
US4038711A (en) * | 1976-01-16 | 1977-08-02 | The United States Bedding Company | Spring assemblies and prefabricated sub-assemblies for manufacture thereof |
-
0
- US US570425D patent/US570425A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3971081A (en) * | 1974-03-14 | 1976-07-27 | Sealy, Incorporated | Box spring unit with metal slats |
US4038711A (en) * | 1976-01-16 | 1977-08-02 | The United States Bedding Company | Spring assemblies and prefabricated sub-assemblies for manufacture thereof |
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