US209836A - Improvement in casting cranks - Google Patents
Improvement in casting cranks Download PDFInfo
- Publication number
- US209836A US209836A US209836DA US209836A US 209836 A US209836 A US 209836A US 209836D A US209836D A US 209836DA US 209836 A US209836 A US 209836A
- Authority
- US
- United States
- Prior art keywords
- pin
- crank
- cranks
- casting
- cast
- 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
- 238000005266 casting Methods 0.000 title description 12
- 239000002184 metal Substances 0.000 description 20
- 229910052751 metal Inorganic materials 0.000 description 20
- 238000004519 manufacturing process Methods 0.000 description 8
- 229910001018 Cast iron Inorganic materials 0.000 description 4
- 229910001208 Crucible steel Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 2
- 101700029811 ERTS Proteins 0.000 description 2
- 229910000754 Wrought iron Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035939 shock Effects 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/02—Trunnions; Crank-pins
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
- F16C3/08—Crankshafts made in one piece
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/02—Shaping by casting
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/02—Shaping by casting
- F16C2220/04—Shaping by casting by injection-moulding
-
- 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
- Y10T29/49286—Crankshaft 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
- Y10T74/00—Machine element or mechanism
- Y10T74/21—Elements
- Y10T74/2173—Cranks and wrist pins
Definitions
- FIG. 1 is an elevation of a pattern for a crank embodying my invention, and sectional view of a flask and mold.
- Fig. 2 is a longitudinal central section of a cast crank.
- Fig. 3 is a transverse section on the line of one end of pattern and pin.
- Fig. L is an elevation of the crank-pin re-enforce.
- Fig. 5 is alongitudinal section of the same.
- My invention relates to the manufacture of cranks for engines and all classes of machinery, especially where large and strong cranks are required.
- cranks either by forging, which is expensive and laborious, or by casting the same of cast-steel, which is also expensive, and un.
- the object of the present invention is to properly re-en force the cran k-pin, so that cheap, strong, and durable cast-iron cranks may be readily produced.
- crank-pin of pattern indicates the shaft of the pattern and casting; b, the crank-pin of pattern, and o the arms or completed crank counterbalances.
- the form I prefer is that shown, the counter-balances 0 being parts of two disks or wheels, (I, which act somewhat as fly-wheels but the form is not essential to the manner of producing, and any preferred or desired form may be chosen to meet the requirements of the case or the fancy of the constructor.
- crank-pin re-enforce should be hollow, asat c, and is preferably provided with flanges f and holes or perforations g, so that in casting the cast metal will become incorporated with the re-enforce.
- crank will be, by preference, cast in the position shown in Fig. 1, the space in the mold indicated by m being filled with a divided disk'core adapted to inclosc the crankpin re-enforce P, and support the same in its position in the mold, the communication between the two parts of the mold being through c of the hollow pin I.
- crank-pin I or IG'GHfOI'CG being in position in the mold with the core, the molten metal is preferably castfrom one end of the shaft, and suflicient meta-l run through the mold, and, of course, through the pin, to insure a perfect union of the pin 1 with the castmg.
- the pin or re-enforce When completed the pin or re-enforce will be held by the cast metal, and frequently, if not always, will be thoroughly united or fused thereto.
- Thetube or sleeve 1, inclosin'g the cast metal of the crank-pin, willnot only strengthen the same to resist shocks or torsion, but will at the same time afford a superior bearing-surface.
- the metal of which the pin 11is formed is preferably steel, though brass, wrought-iron, and other suitable metals may be used. Crosshead pins and various other steel fixtures or pins can be combined with cast-iron castings in like manner.
- crank-axle consisting in placing atubular perforated re-enloree in a mold properly constructed audieasting the crankshaft. within and through it, so as to become incorporated therewith and form a hearingsurt'aee thereon, substantially as and for the I purpose specified.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
E. A. L. ROBERTS.
Casting Cranks.
No. 209,836. Patented Nov.12,1878.
eertain in its results, owing to the difliculty of UNITED STATES PATENT; OFFICE;
EDWARD A. ll. ROBERTS, OF TIIUSYILLE, PENNSYLVANIA.
IMPROVEMENT IN CASTING CRANKS.
Specification forming part of Letters Patent No. 209,836, dated November 12, 1878; application filed October 11. 1878.
To all whom it may concern:
Be it known that I, EDWARD A. L. Ron- ERTS, of Titusville, in the county of Crawford and State of Pennsylvania, have invented a new and useful Improvement in the Manufacture of Cranks; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being bad to the accompanying drawing, forming part of this specification, in which- Figure 1 is an elevation of a pattern for a crank embodying my invention, and sectional view of a flask and mold. Fig. 2 is a longitudinal central section of a cast crank. Fig. 3 is a transverse section on the line of one end of pattern and pin. Fig. L is an elevation of the crank-pin re-enforce. Fig. 5 is alongitudinal section of the same.
My invention relates to the manufacture of cranks for engines and all classes of machinery, especially where large and strong cranks are required.
Heretofore it has been customary to manufacture cranks either by forging, which is expensive and laborious, or by casting the same of cast-steel, which is also expensive, and un.
gettingperfect cast-steel castings and in such castings a solid rod has been inserted in the mold at the position of the crank-pin and incorporated with the casting; but-the cast metal of the pin is not protected thereby, nor. is a good wearing-surface obtained on the crank- The object of the present invention is to properly re-en force the cran k-pin, so that cheap, strong, and durable cast-iron cranks may be readily produced.
I will now proceed to describe my invention, so that others skilled in the art to which it appertains may apply the same.
In the drawing, (it indicates the shaft of the pattern and casting; b, the crank-pin of pattern, and o the arms or completed crank counterbalances. The form I prefer is that shown, the counter-balances 0 being parts of two disks or wheels, (I, which act somewhat as fly-wheels but the form is not essential to the manner of producing, and any preferred or desired form may be chosen to meet the requirements of the case or the fancy of the constructor.
1, Figs. 4 and 5, shows one form given to the metallic rc-ent'orcc for the crank-pin, which is the essential feature of this invent-ion. This crank-pin re-enforce should be hollow, asat c, and is preferably provided with flanges f and holes or perforations g, so that in casting the cast metal will become incorporated with the re-enforce.
The crank will be, by preference, cast in the position shown in Fig. 1, the space in the mold indicated by m being filled with a divided disk'core adapted to inclosc the crankpin re-enforce P, and support the same in its position in the mold, the communication between the two parts of the mold being through c of the hollow pin I.
The crank-pin I or IG'GHfOI'CG being in position in the mold with the core, the molten metal is preferably castfrom one end of the shaft, and suflicient meta-l run through the mold, and, of course, through the pin, to insure a perfect union of the pin 1 with the castmg.
When completed the pin or re-enforce will be held by the cast metal, and frequently, if not always, will be thoroughly united or fused thereto. Thetube or sleeve 1, inclosin'g the cast metal of the crank-pin, willnot only strengthen the same to resist shocks or torsion, but will at the same time afford a superior bearing-surface.
The metal of which the pin 11is formed is preferably steel, though brass, wrought-iron, and other suitable metals may be used. Crosshead pins and various other steel fixtures or pins can be combined with cast-iron castings in like manner.
I am aware that a skeleton-wheel has been employed to re-enforce cast-metal car-wheels, and also that a solid metal rod or re-enforce has been cast into a crank, and do not claim such subject-matter but,
Having thus described the nature and advantages of my invention, what I claim, and desire to secure by Letters Patent, is-
1. An improvement in the process of manufacturing a crank-axle, consisting in placing atubular perforated re-enloree in a mold properly constructed audieasting the crankshaft. within and through it, so as to become incorporated therewith and form a hearingsurt'aee thereon, substantially as and for the I purpose specified.
2. A crank having a hollow crank-pin east Into the same, into, lhrough and around which pin the metal of the casting passes, substantially as and for the purpose specified.
In testimony whereof I, the said EDWARD A. L. RQBERTs, have hereunto set my hand.
EIHVARI) A. L. ROBERTS. Witnesses:
F. W. BITTER, .l'iz, (1. II. Ronnn'rs.
Publications (1)
Publication Number | Publication Date |
---|---|
US209836A true US209836A (en) | 1878-11-12 |
Family
ID=2279243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US209836D Expired - Lifetime US209836A (en) | Improvement in casting cranks |
Country Status (1)
Country | Link |
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US (1) | US209836A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4881427A (en) * | 1982-10-21 | 1989-11-21 | Honda Giken Kogyo Kabushiki Kaisha | Crankshaft of internal combustion engine and method of producing the same |
-
0
- US US209836D patent/US209836A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4881427A (en) * | 1982-10-21 | 1989-11-21 | Honda Giken Kogyo Kabushiki Kaisha | Crankshaft of internal combustion engine and method of producing the same |
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