US1322056A - Bdwaxd a - Google Patents
Bdwaxd a Download PDFInfo
- Publication number
- US1322056A US1322056A US1322056DA US1322056A US 1322056 A US1322056 A US 1322056A US 1322056D A US1322056D A US 1322056DA US 1322056 A US1322056 A US 1322056A
- Authority
- US
- United States
- Prior art keywords
- ring
- rings
- convolutions
- forming
- piston
- 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
- 229910001018 Cast iron Inorganic materials 0.000 description 4
- AGPKZVBTJJNPAG-CRCLSJGQSA-N D-allo-isoleucine Chemical compound CC[C@H](C)[C@@H](N)C(O)=O AGPKZVBTJJNPAG-CRCLSJGQSA-N 0.000 description 2
- 210000003414 Extremities Anatomy 0.000 description 2
- 235000012571 Ficus glomerata Nutrition 0.000 description 2
- 240000000365 Ficus racemosa Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 235000015125 Sterculia urens Nutrition 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 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
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/06—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass piston rings from one piece
-
- 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
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49274—Piston ring or piston packing making
- Y10T29/49284—Piston ring or piston packing making including machining or angular cutting
Definitions
- FIG. 1 is a side elevation of my improved piston ring;
- Fig. 2 is a plan view of the same, and
- Fig. 3 is a detail of the lap portion formed by an alternate method.
- Fig. l is a side elevation of a helical. spring having a considerable number of convolutions and showing how the spring is to be cut into individual springs for forming the piston rings.
- My invention contemplates broadly. the forming of a piston ring that shall have two complete convolutions to more thoroughly seal the engine cylinder in which'it is used than does the common type of ring.
- a helical spring having a large number of convolutions as shown in Fig. 4 and then cut this spring into a number of individual springs, each. having two complete convolutions.
- the method described is extremely low in manufacturing cost as it is only necessary to form up the springs, make the individual cuts at the proper angle, and then strike the individual ring so formed in a die, thus com pleting the piston ring, which may be turned or ground later or not as desired.
- the rings After the rings have been so formed they are positioned with the ends as shown in Fig. 3, and a portion 9 of each of the rings is then welded together thus forming one complete ring having two convolutions. It is apparent that the lap at 9 may be of any suitable length, the new feature of this method being the welding of two such rings at their opposite extremities so as to form thereby a single ring having two convolutions. y
- the method of forming piston rings comprising the forming of a rod of rectan gular section into a helical spring, cutting the helical spring into individual springs having two convolutions. and forming the central portion of the individual springin a die so as to bring the outer ends of the helical spring into two respective parallel planes.
- the method of forming piston rings comprising the. forming of a rod of rectangular section into a helical spring, cutting the spring by diagonal cuts into individual springs, having two convolutions, and forming the central portion of the individual springs transversely between the diagonally cut ends to produce a piston ring having its edges parallel.
Description
E. A. ROEHL.
METHOD OF MAKING PISTON RINGS.
APP LICATIO N FILED AUG-6,1917- 1,322,056. Patented Nov. 18, 1919.
[/7 yen/or Edward A 9066/ fi/forney STATES EDWARD A. WHEEL, OF ST. PAUL, MINNESOTA.
MJE'IHUD OF MAKING PISTON-RINGS.
Specification of Letters Patent.
Patented Nov. 18, 1919..
application filed August G, 19173 Serial No. 184,776.
.ternal combustion engines and the like.
With this and incidental objects in view the invention consists of certain novel methods and sequences of operations, the essential elements of which are hereinafter described with reference to the drawing which accompanies and forms a part of this specification.
In the drawing Figure 1 is a side elevation of my improved piston ring; Fig. 2 is a plan view of the same, and Fig. 3 is a detail of the lap portion formed by an alternate method. Fig. l is a side elevation of a helical. spring having a considerable number of convolutions and showing how the spring is to be cut into individual springs for forming the piston rings.
My invention contemplates broadly. the forming of a piston ring that shall have two complete convolutions to more thoroughly seal the engine cylinder in which'it is used than does the common type of ring.
ll' hile piston rings have been made heretofore having two or more convolutions. I believe that my method of producing the ring is entirely new.
When the ring is to be made of steel or other suitable material capable of being formed, I prefer to form a helical spring having a large number of convolutions as shown in Fig. 4 and then cut this spring into a number of individual springs, each. having two complete convolutions.
With the individual springs so cut each is placed in a die and by exerting pressure upwardly in the direction of the arrow 1, Fig. I, and. downwardly as indicated by the arrow 2 with the portions 3 and d of the ring maintained in a horizontal position, a double bend is formed with an angle at 5 fitting the angle at which the end 6 of the ring has been out 0d", and with the angle at 7 fitting the similar angle at which the end 8 has been cut ed.
When making rings of metal of this type, the method described is extremely low in manufacturing cost as it is only necessary to form up the springs, make the individual cuts at the proper angle, and then strike the individual ring so formed in a die, thus com pleting the piston ring, which may be turned or ground later or not as desired.
When a cast iron ring is desired I form my improved ring in a somewhat diflerent manner.
Two individual rings are turned of cast iron in the ordinary manner and each of the rings is then cut on an angle, as shown in Fig. 3.
After the rings have been so formed they are positioned with the ends as shown in Fig. 3, and a portion 9 of each of the rings is then welded together thus forming one complete ring having two convolutions. It is apparent that the lap at 9 may be of any suitable length, the new feature of this method being the welding of two such rings at their opposite extremities so as to form thereby a single ring having two convolutions. y
While I have described my invention and illustrated it in two particular designs, I do not wish it understood that I limit myself to these methods, as it is evident that the application of my invention may be varied in many ways within the scope of the following claims.
Claims:
1. The method of forming piston rings comprising the forming of a rod of rectan gular section into a helical spring, cutting the helical spring into individual springs having two convolutions. and forming the central portion of the individual springin a die so as to bring the outer ends of the helical spring into two respective parallel planes.
2. The method of forming piston rings comprising the. forming of a rod of rectangular section into a helical spring, cutting the spring by diagonal cuts into individual springs, having two convolutions, and forming the central portion of the individual springs transversely between the diagonally cut ends to produce a piston ring having its edges parallel.
EDWARD A. nonnn.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1322056A true US1322056A (en) | 1919-11-18 |
Family
ID=3389516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US1322056D Expired - Lifetime US1322056A (en) | Bdwaxd a |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1322056A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3082010A (en) * | 1958-01-20 | 1963-03-19 | Rolls Royce | Labyrinth seals |
-
0
- US US1322056D patent/US1322056A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3082010A (en) * | 1958-01-20 | 1963-03-19 | Rolls Royce | Labyrinth seals |
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