US138438A - Improvement in carriage-springs - Google Patents
Improvement in carriage-springs Download PDFInfo
- Publication number
- US138438A US138438A US138438DA US138438A US 138438 A US138438 A US 138438A US 138438D A US138438D A US 138438DA US 138438 A US138438 A US 138438A
- Authority
- US
- United States
- Prior art keywords
- springs
- spring
- carriage
- improvement
- heads
- 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
- 239000002184 metal Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000006011 modification reaction Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 210000003414 Extremities Anatomy 0.000 description 2
- 210000003141 Lower Extremity Anatomy 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000036461 convulsion Effects 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
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
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/02—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
- F16F3/023—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction composed only of leaf springs
Definitions
- Patented A ril 29, 1373 Patented A ril 29, 1373.
- My invention consists of a certain construction of spring for wheel vehicles or other uses, wherein double concavo-convex springplates, terminating in straight ends with bent hooks, are so connected to stationary and moving heads as to become more or less straightened under the load, thereby assuming a stronger position the heavier the strain becomes, and, while easily flexed under a light strain or at he commencement of a jerk, becoming more and more rigid as it increases, until, under an extreme load, the metal assumes a position directly parallel to the line of strain, thereby opposing its greatest strength to support the load.
- Figure 1 is a perspective view of a-spring embodying my invention.
- Fig. 2 is an axial longitudinal section of the same.
- Fig. 3 is an elevation, partially sectionized, showing the application of a modified form of my invention to a wagon.
- Fig. 4 is a transverse section of Fig. 3.
- Fig. 5 is an enlarged-section, showing the details of this modification.
- A is a hollow metallic spindle, bearing at one end a cubical metallic head, B, which is fixed, and having a similar movable one, B, near its other end, through which it slides.
- This spindle plays another, 0, solid and of smaller diameter, at whose extremity is a key-pin, c, which moves in the slots to of the spindle A and supports the loose head B.
- Assembled upon the four faces of the two heads B B B are four double concavo-convex steel springplates, D D D D, which are held upon the heads partially by their bent ends,
- the effect of said weight is to press down the fixed head B, increasing the distance between the heads and straightening the spring-plates, which become more rigid as they are elongated.
- Figs. 3, 4, and 5 show a modification of this spring, having only two curved spring-plates, attached to the axle of a wagon, the body of which rests upon a slide, F, which embraces the axle and has at its lower extremity a curved cross-bar, G, which bears at each end upon the lower head B of the spring D, the upper head B being supported on a solid upright, K, which takes the place of the spindles A O.
- the double concavo-convex form of the springs obviates the use of hinges at the ends of the same, as in the C-sprin gs heretofore used in the above-described manner; but the most important advantage gained by the double coucavo-convex form is, that the springs may be pulled perfectly straight without bending the metal at the junction with the heads.
Description
2 Sheets-*Sheet l.
Patented April 29, 1873.
Inventor N m ma m 0 g S n 6 M .H 1, 070000.. In 1 p :3 1 T. V T QQQNJMAMIVIN S v 1 H |1 Q C B I g .m .r D r a B .l-
2 Sheets--Sheet 2-.
i. D. RICHARDSON. Carriage-Springs.
Patented A ril 29, 1373.
' 'lllillilllill Inventor AM PHOTO-LITHOGRAPHIC co. My (vsaasws's P1200558.)
NITED s'IATEs PATENT OFFICE JOHN D. RICHARDSON, OF HOUSTON, TEXAS, ASSIGNOR TO HIMSELF AND JOSEPH RICHARDSON, OF CINCINNATI, OHIO.
IMPROVEMENT IN CARRIAGE-SPRINGS.
Specification forming part of Letters Patent No. 138,438, dated April 29, 1873; application filed August 29, 1872.
To all whom it may concern:
Be it known that I, JOHN D. RICHARDSON, of Houston, Harris county, Texas, have invented a certain new and useful Improvement in Springs, of which the following is a specification:
Nature and Objects of Intention.
My invention consists of a certain construction of spring for wheel vehicles or other uses, wherein double concavo-convex springplates, terminating in straight ends with bent hooks, are so connected to stationary and moving heads as to become more or less straightened under the load, thereby assuming a stronger position the heavier the strain becomes, and, while easily flexed under a light strain or at he commencement of a jerk, becoming more and more rigid as it increases, until, under an extreme load, the metal assumes a position directly parallel to the line of strain, thereby opposing its greatest strength to support the load.
Description of the Accompany mg Drmrtng.
Figure 1 is a perspective view of a-spring embodying my invention. Fig. 2 is an axial longitudinal section of the same. Fig. 3 is an elevation, partially sectionized, showing the application of a modified form of my invention to a wagon. Fig. 4 is a transverse section of Fig. 3. Fig. 5 is an enlarged-section, showing the details of this modification.
A is a hollow metallic spindle, bearing at one end a cubical metallic head, B, which is fixed, and having a similar movable one, B, near its other end, through which it slides. Inside this spindle plays another, 0, solid and of smaller diameter, at whose extremity is a key-pin, c, which moves in the slots to of the spindle A and supports the loose head B. Assembled upon the four faces of the two heads B B are four double concavo-convex steel springplates, D D D D, which are held upon the heads partially by their bent ends,
I partially by swaged projections d, which fit into recesses in the heads, and are all confined to their places by the metallic hoops or ferrules E E, which are secured in their position by the key pins 0 e, diagonally inserted through the corners of the heads and hoops.
The lower end of spindle 0 being supported,
and a weight applied upon A, the effect of said weight is to press down the fixed head B, increasing the distance between the heads and straightening the spring-plates, which become more rigid as they are elongated.
Figs. 3, 4, and 5 show a modification of this spring, having only two curved spring-plates, attached to the axle of a wagon, the body of which rests upon a slide, F, which embraces the axle and has at its lower extremity a curved cross-bar, G, which bears at each end upon the lower head B of the spring D, the upper head B being supported on a solid upright, K, which takes the place of the spindles A O.
The tendency of the load then, is to elongate the'spring, and, as in the first form of spring, to produce a proportionate resistance on the part of the curved plates, which as sume a more rigid position as the strain increases, and must evidently, under an extreme load, assume a straight vertical position, in which the action of the spring, as such, ceases, and the whole tensile strength ofthe metal becomes available to support the weight which is transmitted to the axle by the bent ends and indentations d.
The double concavo-convex form of the springs obviates the use of hinges at the ends of the same, as in the C-sprin gs heretofore used in the above-described manner; but the most important advantage gained by the double coucavo-convex form is, that the springs may be pulled perfectly straight without bending the metal at the junction with the heads.
Claims.
1. The combination of heads B B and double concavo-convex bent springs D D, constituting a spring which in use will elongate or straighten under a load, substantially as and for the purpose specified.
2. The combination ofheads B B d, side spring-plates D d, and hoops E E, substantially as and for the purpose specified.
In testimony of which invention I hereunto set my hand.
JOHN D. RICHARDSON.
Witnesses H. G. WEBBER, HENRY MILLWARD.
Publications (1)
Publication Number | Publication Date |
---|---|
US138438A true US138438A (en) | 1873-04-29 |
Family
ID=2207852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US138438D Expired - Lifetime US138438A (en) | Improvement in carriage-springs |
Country Status (1)
Country | Link |
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US (1) | US138438A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2510963A (en) * | 1944-12-20 | 1950-06-13 | Harold J Dibblee | Vibration isolator |
NL2000095C2 (en) * | 2006-06-09 | 2007-12-11 | Loggers Rubbertech | Spring unit with leaf spring for e.g. use in clean rooms, uses spring made from fiber reinforced plastic |
-
0
- US US138438D patent/US138438A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2510963A (en) * | 1944-12-20 | 1950-06-13 | Harold J Dibblee | Vibration isolator |
NL2000095C2 (en) * | 2006-06-09 | 2007-12-11 | Loggers Rubbertech | Spring unit with leaf spring for e.g. use in clean rooms, uses spring made from fiber reinforced plastic |
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