US249068A - Stamp-mill - Google Patents
Stamp-mill Download PDFInfo
- Publication number
- US249068A US249068A US249068DA US249068A US 249068 A US249068 A US 249068A US 249068D A US249068D A US 249068DA US 249068 A US249068 A US 249068A
- Authority
- US
- United States
- Prior art keywords
- stamp
- shaft
- stamps
- cam
- cams
- 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
- 239000000203 mixture Substances 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 206010022114 Injury Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000000881 depressing Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000630 rising 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
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/08—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion
- F16H25/14—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion with reciprocation perpendicular to the axis of rotation
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- 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
- Y10T74/18—Mechanical movements
- Y10T74/18056—Rotary to or from reciprocating or oscillating
- Y10T74/18296—Cam and slide
Definitions
- WITNESSES (r, INVENTOR: &W ⁇ any??? ,m/
- the object of this invention is to provide a device whereby stamps may be run with greater speed, greater crushing force, and less liability to injury or wear of working parts.
- the invention consists of a separate camshaft with single-armed cam or cams for forcing the stamps down, and of elastic or spring cams for obviating the usual shock or jar that obtains when an inelastic cam comes in contact with a stamp-tappet.
- Figure 1 is a front elevation of the device.
- Fig. 2 is a sectional side elevation on line m 00, Fig. 1.
- Fig. 3 is a plan view on line y 3 Fig. 1.
- A represents the frame of a stamp-battery; B, the stamps; B,the stamprods; B, the stamp-boxes; and O the tappets, secured upon the rods B, all of which parts rcsemble those now in use.
- D is the cam-shaft, on which are secured the volute cams E, (for lifting the stamps,) that are flat plates of steel, or other metal possessing sufficient elasticity, bent in a proper curve.
- volute cams E for lifting the stamps,
- two of these cams or camarms E, set at equal distances apart, are fixed on each hub E, to operate the opposite stamp, so that a stamp may be lifted twice in each revolution of the shaft D; but three or more cams, E, may be used to operate each stamp, the number required depending upon the speed of the cam-shaft and the desired speed of the stamps.
- the cog-wheel D on the cam-shaft D, and the cog-wheel G on the shaft G are geared together, and are of such relative diameters that the cam-shaft G makes one revolution for each arm on a lifting-cam, so that in this instance the shaft G makes two revolutions while the shaft D makes one revolution, while if the lifting cam have three or more arms the shaft of the lifting-cam shaft.
- the object of these cams H is to force the stamps down. When the stamps are run at the usual speed of quartz-mills the upper cams, H, do not engage the tappets F.
- Said tappets F may be continuations of the tappets G, or separate constructions, as herein shown; but when the speed of the stamps is somewhat increased the upper cams, H, strike against the tappets F and force the stamps B down, the greater the speed the heavier the blow of the stamp, and as the upper shaft, G, revolves with greater speed than the lower shaft, D, in proportion to the number of arms onthe lower cams, E, the stamps B are forced down with greater velocity than they are raised.
- the rotary motion given to the Stamps in rising, by the engagement of the cams E with the circular tappets O, is continued in the same direction by the upper cams, B, when they act upon the descending stamps, thus greatly increasing the grinding effect of said stamps.
- Inelastic cams used for lifting stamps are extremely liable to fracture and cause a severe jar or shock when engaging with the stamptappets; but the elastic volute cams herein shown and described are entirely free from these objections.
- volute cam H arranged above and acting directly upon a tappet of the stamp-rod to force down the stamp
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Description
(ModeL) J. M. MQFARLAND.
STAMP MILL.
No. 249,068. I Patented N0v.1,1881
jig. 1
llll;
WITNESSES: (r, INVENTOR: &W\ any??? ,m/
lywvlwy Q B aux/um ATTORNEYS.
N. PETERS Phomllnm n vwr. Washington, D. C.
UNITED STATES PATENT GEEtcE.
JAMES M. MGFARLAND, OF VIRGINIA CITY, NEVADA.
STAMP-MILL.
SPECIFICATION forming part of Letters Patent No. 249,068, dated November 1, 1881..
Application filed May 13, 1880. (ModeL) To all whom it may concern Be it known that I, JAMES M. MQFARLAND, of Virginia City, in the county of Storey and State of Nevada, have invented a new Improved Stamp-Mill, of which the following is a specification.
The object of this invention is to provide a device whereby stamps may be run with greater speed, greater crushing force, and less liability to injury or wear of working parts.
The invention consists of a separate camshaft with single-armed cam or cams for forcing the stamps down, and of elastic or spring cams for obviating the usual shock or jar that obtains when an inelastic cam comes in contact with a stamp-tappet.
Figure 1 is a front elevation of the device. Fig. 2 is a sectional side elevation on line m 00, Fig. 1. Fig. 3 is a plan view on line y 3 Fig. 1.
Similar letters of reference indicate corresponding parts.
In the drawings, A represents the frame of a stamp-battery; B, the stamps; B,the stamprods; B, the stamp-boxes; and O the tappets, secured upon the rods B, all of which parts rcsemble those now in use.
D is the cam-shaft, on which are secured the volute cams E, (for lifting the stamps,) that are flat plates of steel, or other metal possessing sufficient elasticity, bent in a proper curve. In this instance two of these cams or camarms E, set at equal distances apart, are fixed on each hub E, to operate the opposite stamp, so that a stamp may be lifted twice in each revolution of the shaft D; but three or more cams, E, may be used to operate each stamp, the number required depending upon the speed of the cam-shaft and the desired speed of the stamps.
Above the customary tappet, O, on the rods B, are secured other tappets, F, and still higher up the cam-shaft G is journaled in the frame A, and carries a single volute cam, H, for each stamp.
The cog-wheel D on the cam-shaft D, and the cog-wheel G on the shaft G, are geared together, and are of such relative diameters that the cam-shaft G makes one revolution for each arm on a lifting-cam, so that in this instance the shaft G makes two revolutions while the shaft D makes one revolution, while if the lifting cam have three or more arms the shaft of the lifting-cam shaft. The object of these cams H is to force the stamps down. When the stamps are run at the usual speed of quartz-mills the upper cams, H, do not engage the tappets F. Said tappets F may be continuations of the tappets G, or separate constructions, as herein shown; but when the speed of the stamps is somewhat increased the upper cams, H, strike against the tappets F and force the stamps B down, the greater the speed the heavier the blow of the stamp, and as the upper shaft, G, revolves with greater speed than the lower shaft, D, in proportion to the number of arms onthe lower cams, E, the stamps B are forced down with greater velocity than they are raised. The rotary motion given to the Stamps in rising, by the engagement of the cams E with the circular tappets O, is continued in the same direction by the upper cams, B, when they act upon the descending stamps, thus greatly increasing the grinding effect of said stamps.
Inelastic cams used for lifting stamps are extremely liable to fracture and cause a severe jar or shock when engaging with the stamptappets; but the elastic volute cams herein shown and described are entirely free from these objections.
Having thus described my invention, What I claim as new, and desire to secure by Letters Patent, is-
1. In a stamp-mill, the combination of th tappets O F on the stamp-rod, the flat elastic plates or lifting-cams E on shaft D, the single superposed depressing volute cam H on shaft G, and the cog-wheels D G, the wheel D being twice the diameter of the wheel G, as and for the purpose specified.
2. In a stamp-mill, the combination of the tappets O F on the stamp-rod, thelifting-eams E on shaft D, the single superposed volute depression-cam H on shaft G, and the cogwheels D G, as and for the purpose described.
3. In a stamp-mill, the volute cam H, arranged above and acting directly upon a tappet of the stamp-rod to force down the stamp,
as specified.
J AMES MAXEY MoFA'R-LAND.
Witnesses:
LoUIs P. WARDLE, J OHN MoNsoN.
G will make three or more revolutions to one
Publications (1)
Publication Number | Publication Date |
---|---|
US249068A true US249068A (en) | 1881-11-01 |
Family
ID=2318386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US249068D Expired - Lifetime US249068A (en) | Stamp-mill |
Country Status (1)
Country | Link |
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US (1) | US249068A (en) |
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0
- US US249068D patent/US249068A/en not_active Expired - Lifetime
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