US157807A - Improvement in blank-bars for elliptic spring-heads - Google Patents
Improvement in blank-bars for elliptic spring-heads Download PDFInfo
- Publication number
- US157807A US157807A US157807DA US157807A US 157807 A US157807 A US 157807A US 157807D A US157807D A US 157807DA US 157807 A US157807 A US 157807A
- Authority
- US
- United States
- Prior art keywords
- heads
- blank
- bars
- improvement
- spring
- 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
- 210000000614 Ribs Anatomy 0.000 description 8
- 238000004080 punching Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
- F17C1/04—Protecting sheathings
- F17C1/06—Protecting sheathings built-up from wound-on bands or filamentary material, e.g. wires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/04—Pressure vessels, e.g. autoclaves
- B01J3/048—Multiwall, strip or filament wound vessels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49607—Spring-head clip making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12188—All metal or with adjacent metals having marginal feature for indexing or weakened portion for severing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12389—All metal or with adjacent metals having variation in thickness
- Y10T428/12403—Longitudinally smooth and symmetrical
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/2457—Parallel ribs and/or grooves
Definitions
- the ears After the ears have been-thus formed, they are fitted to the spring-bar D, as shown in Fig. 2, one edge of the spring fitting tightly between the ribs of one ear, and the other edge between the ribs of the other car, after which the spring and ears are welded together by the aid of suitable dies, which impart the desired shape to the end of the spring.
Description
J. EVANS.
Blank Bars for Elliptic-Spring Heads.
No.157,80 7.. Patented 090.15.1874.
THE GRLPHlOCQPHbTO4-ITH.398x44 PARK PLACEJLY UNITED STATES PATENT OFFICE.
JOHN EVANS, OF PHILADELPHIA, PENNSYLVANIA.
lMPROV EMENT lN BLANK-B ARS FOR ELLIPTIC SPRING-HEADS.
Specification forming part of Letters Patent No. 157,807, dated December 15, 1574; application filed May 22, 1874.
To all whom it may concern:
Be it known that I, JOHN EVANS, of Philadelphia, Pennsylvania, have invented an Improved Skelp from which to Manufacture Ears of Springs, of which the following is a specification:
My invention relates to an improved skelp from which to cut blanks for use in the manu-' suitable punch and die I then cutfrom the bar the right and left ears B and 'B.
In punching out the cars from the bar all that is necessary is to reverse the latter and feed it forward after each ear is punched, the punch taking effect on dotted line ac, (shown in Fig. 1,) so that right and left cars can be cut from the bar with very little waste of material.
This plan of punching right and left cars from a bar with the View of economizing metal, is shown in my Patent N 0. 88,861, wherein the skelp, however, has but one rib at each edge.
After the ears have been-thus formed, they are fitted to the spring-bar D, as shown in Fig. 2, one edge of the spring fitting tightly between the ribs of one ear, and the other edge between the ribs of the other car, after which the spring and ears are welded together by the aid of suitable dies, which impart the desired shape to the end of the spring.
I claim as my invention- A skelp consisting of a bar, A, having on opposite sides at each edge parallel ribs, as and for the purpose set forth.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
JOHN EVANS.
Witnesses WM. A. STEEL, HARRY SMITH.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US157807A true US157807A (en) | 1874-12-15 |
Family
ID=2227217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US157807D Expired - Lifetime US157807A (en) | Improvement in blank-bars for elliptic spring-heads |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US157807A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3920408A (en) * | 1971-10-06 | 1975-11-18 | Roper Corp | Extrusion employed in making valances |
| US4517232A (en) * | 1984-03-26 | 1985-05-14 | The Ohio Table Pad Company | Table pad interlock assembly |
-
0
- US US157807D patent/US157807A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3920408A (en) * | 1971-10-06 | 1975-11-18 | Roper Corp | Extrusion employed in making valances |
| US4517232A (en) * | 1984-03-26 | 1985-05-14 | The Ohio Table Pad Company | Table pad interlock assembly |
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