US475904A - sullivan - Google Patents
sullivan Download PDFInfo
- Publication number
- US475904A US475904A US475904DA US475904A US 475904 A US475904 A US 475904A US 475904D A US475904D A US 475904DA US 475904 A US475904 A US 475904A
- Authority
- US
- United States
- Prior art keywords
- spring
- loop
- wire
- sullivan
- eye
- 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
- 210000003414 Extremities Anatomy 0.000 description 12
- 238000005452 bending Methods 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002393 scratching Effects 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 238000000926 separation method 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
- A47C23/0515—Frames therefor; Connecting the springs to the frame ; Interconnection of springs, e.g. in spring units using clamps or similar connecting means
Definitions
- My invention relates to an improvement in the class of springs used extensively in springbeds, mattresses, and the like, and commonly constructed of spring-wire in the form of a single or double helix.
- my improvement relates tothe fastening of one or of each end of the wire upon the adjacent end connection of the helix, my object being a twofold one namely, to so fasten the end or ends as to prevent separation thereof by the spreading tendency induced by compressing the spring,
- Figure 1 is a view in elevation of a spring in the form of a double helix having each end secured by my improved fastening means
- Fig. 2 is a perspective View of a broken portion of the base of the spring provided with my improvem ent.
- A is the spring, shown as of the double-helix shape and formed of wire.
- the convolution r at each end of the spring is bent aboutmidway of its circumference into a loop q, and the end of the wire at the end of the convolution is passed through the loop and formed beyond the same into a re-entrant spring-eye p by bending such end at an angle (by pref- 5o erence perpendicularly, as shown) in a manner to produce an outgoing curved side m of the eye adjacent to one inner side of the loop q and a returning oppositely-curved side 00', terminating in the loop at the opposite side thereof.
- the eye 1) extends beyond the loop at an angle (as a right angle) thereto and is of sufficient diameter to prevent it from passing through the loop, whereby compression of the spring or other cause tending to separate the fastened end of the spring will be prevented from effecting its withdrawal or causing it to slip, and whereby, furthermore, the extremity 00 of the end of the wire is shielded by the loop into which it is returned, and thus prevented from catching into cloth and coming into contact with and mar-ring or scratching the surface of any object.
- the eye 13 may be formed first and the loop q formed about it.
- a spring formed with spiral convolutions and having an end convolution provided with a loop, and its end provided with a spring-eye protruding through and returned at its extremity into and shielded by the loop, substantially as described.
- a helical wire spring A having a loop q formed in each of its end convolutions and formed at each end into a spring-eye p, pr0- truding through the loop, and having its extremity 00 returned into and shielded by the loop, substantially as described.
Description
(No Model.)
J. H. SULLIVAN. SPRING.
No. 475,904. Patented May 31, 1892.
UNITED STATES PATENT OFFICE.
JOSEPH I-l. SULLIVAN, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE WILLIAM- D. GIBSON COMPANY, OF SAME PLACE.
SPRING.
SPECIFICATION forming part of Letters Patent No. 475,904, dated May 31, 1892.
Application filed November 17, 1891. Serial No. 412,144. (No model.)
To all whom it may concern.-
Be it known that I, JOSEPH H. SULLIVAN, a citizen of the United States, residing at Ohicago, in the county of Cook and Stateof Illinois, have invented a new and useful Improvement in Springs, of which the following is a specification.
My invention relates to an improvement in the class of springs used extensively in springbeds, mattresses, and the like, and commonly constructed of spring-wire in the form of a single or double helix.
More definitely stated my improvement relates tothe fastening of one or of each end of the wire upon the adjacent end connection of the helix, my object being a twofold one namely, to so fasten the end or ends as to prevent separation thereof by the spreading tendency induced by compressing the spring,
and thereby prevent rubbing together of the parts at the junction to render the spring noiseless and to shield the extremity of the end or of each end against becoming caught in or abradingand injuring objects with which .it comes in contact.
To accomplish my object I form in the end convolution a loop through which the end of the wire is passed and bent at its protruding extremity into a re-entrant spring-eye of a diametertoo great to permit it to pass through the loop in the end convolution, thereby effectually preventing withdrawal of the end of the wire or such movement thereof as would cause noise, and at the same time shielding 5 its extremity.
In the accompanying drawings, Figure 1 is a view in elevation of a spring in the form of a double helix having each end secured by my improved fastening means, and Fig. 2 is a perspective View of a broken portion of the base of the spring provided with my improvem ent.
A is the spring, shown as of the double-helix shape and formed of wire. The convolution r at each end of the springis bent aboutmidway of its circumference into a loop q, and the end of the wire at the end of the convolution is passed through the loop and formed beyond the same into a re-entrant spring-eye p by bending such end at an angle (by pref- 5o erence perpendicularly, as shown) in a manner to produce an outgoing curved side m of the eye adjacent to one inner side of the loop q and a returning oppositely-curved side 00', terminating in the loop at the opposite side thereof. Thus the eye 1) extends beyond the loop at an angle (as a right angle) thereto and is of sufficient diameter to prevent it from passing through the loop, whereby compression of the spring or other cause tending to separate the fastened end of the spring will be prevented from effecting its withdrawal or causing it to slip, and whereby, furthermore, the extremity 00 of the end of the wire is shielded by the loop into which it is returned, and thus prevented from catching into cloth and coming into contact with and mar-ring or scratching the surface of any object.
It is my purpose to fasten each end of any spring of the nature of that to which my improvement relates by the particular fastenin shown and described. As it may, however, be used to advantage for only one end, especially where but one end is fastened, as in the single-helix form of spring, I do not wish to be limited to the use thereof at both ends.
For convenience in the manufacture the eye 13 may be formed first and the loop q formed about it.
That I claim as new, and desire to secure by Letters Patent, is
1. A spring formed with spiral con volutions and having an end convolution provided with a loop, and its end provided with a spring-eye protruding through and returned at its extremity into and shielded by the loop, substantially as described.
2. A helical wire spring A, having a loop q formed in each of its end convolutions and formed at each end into a spring-eye p, pr0- truding through the loop, and having its extremity 00 returned into and shielded by the loop, substantially as described.
JOSEPH H. SULLIVAN.
In presence of M. J. FROST, A. P. COBB.
Publications (1)
Publication Number | Publication Date |
---|---|
US475904A true US475904A (en) | 1892-05-31 |
Family
ID=2544760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US475904D Expired - Lifetime US475904A (en) | sullivan |
Country Status (1)
Country | Link |
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US (1) | US475904A (en) |
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0
- US US475904D patent/US475904A/en not_active Expired - Lifetime
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