US183631A - Improvement in tappets for stamp-rods - Google Patents
Improvement in tappets for stamp-rods Download PDFInfo
- Publication number
- US183631A US183631A US183631DA US183631A US 183631 A US183631 A US 183631A US 183631D A US183631D A US 183631DA US 183631 A US183631 A US 183631A
- Authority
- US
- United States
- Prior art keywords
- tappet
- face
- tappets
- stamp
- improvement
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000003292 diminished effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
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
- F16H53/00—Cams or cam-followers, e.g. rollers for gearing mechanisms
- F16H53/06—Cam-followers
-
- 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
- Y10T74/2101—Cams
- Y10T74/2107—Follower
Definitions
- FIG. 1 a front elevation of the tappet, with the lower portion of its side broken away to show the construction of the face.
- Fig. 2 is a plan View of the face of the tappet.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
UNITED STATES PATENT OFFICE.
JAMES BRODIE, OF SAN FRANCISCO, CALIFORNIA.
IMPROVEMENT IN TAPPETS FOR STAMP-RODS.
Specification forming part of Letters Patent N 0. 183,631, dated October 24, 1876; application filed March 13, 1876.
To all whom it may concern:
Be it known that I, JAMES BRODIE, of the city of San Francisco, State of California, have invented an Improvement in Tappets for Stamp-Stems of QuartaMills, of which the following is a specification:
My invention relates to the tappets of quartz-mill stamps, that receive the strokes of the cams employed to raise the stamps. It consists in an iron plate and steel ring shrunk upon the end of the tappet, and forming the face of the same, so that when the face is worn it can be removed without damage to the body of the tappet, which can thus be preserved for any length of time. These means also cause the face of the tappet to wear more evenly and for a greater length of time than heretofore.
The accompanying drawing shows, in Figure 1, a front elevation of the tappet, with the lower portion of its side broken away to show the construction of the face. Fig. 2 is a plan View of the face of the tappet.
The tappet is that part of the machinery in a quartz-mill secured to the stamp-stem, and against which the strokes of the cam are received. The action of the cam employed to raise the stamps causes the stem and its tappet to make a rotary as well as a vertical movement, and the friction of the cam upon the face of the tappet causes the surface, and particularly the rim, to Wear away in a short time, and very irregularly. Thus the operation of the mill is soon impaired by the imperfect action of the stamps.
My invention consists in constructing the face of the tappet A of two kinds or qualities of metal, difl'ering from each other in degrees of hardness, the ring being formed of a steel ring, 0, and the rest of the area within this rim being composed of an iron plate, D. As the action of the cam upon the tappet to give it the rotary movement produces an unequal wearing away of the face where it is composed entirely of one kind of metal, by reason of the greatest amount of the friction coming against the rim of the tappet, I am enabled to keep the face smooth and equal by making the part having the most work of a harder metal than the other portion of the face. Therefore the cam produces an equal wearing of the hard-metal rim C and the softer face D Within it.
The end of the body A of the tappet is diminished in size to receive the steel ring, which fits closely to the body, and projects beyond the end of the same. This steel ring is beveled inwardly on the inside, where it projects beyond the bottom of the tappet, as shown by a. The rim of the iron plate D has an outward bevel, b. The steel ring is heated, when the plate D is placed in the bevel a, and the ring shrunk into the position shown in Fig. 1, thus holding all the parts firmly together.
When the plate and the steel ring, or either, are Worn away, they can be easily renewed, and the body of the tappet thus preserved.
I am aware of the patent granted November 12, 1872, to B. McCauly, showing a tappet with a broad steel ring shrunk into a recess on the end of the tappet, and forming a part of its face. This device, however, provides only for the smooth and regular wear of the face of the tappet, and not for the renewal of such face when worn out, While I provide for the complete renewal of the face of the tappet as well as for its even wear.
Having thus fully described my invention, what I claim therein as new is The combination, with the metallic body A of a tappet, having a diminished end, of the steel ring C, projecting beyond the said small end of the tappet, and provided with the bevel a, and the iron plate D, having beveled edge b, the several parts being constructed, arranged, and secured in position substantially as described and shown.
Witness my hand and seal this 1st day of March, 1876.
JAMES BRODIE. [L. s.] Witnesses:
O. W. M. SMITH, OLE ANTHONY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US183631A true US183631A (en) | 1876-10-24 |
Family
ID=2253036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US183631D Expired - Lifetime US183631A (en) | Improvement in tappets for stamp-rods |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US183631A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014078919A1 (en) | 2012-11-26 | 2014-05-30 | Braskem S.A. | Metallocene catalyst supported by hybrid supporting means, process for producing same, polimerization process for producing an ethylene homopolymer or copolymer with broad or bimodal molar mass distribution, use of the supported metallocene catalyst and ethylene polymer with broad or bimodal molar mass distribution |
-
0
- US US183631D patent/US183631A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014078919A1 (en) | 2012-11-26 | 2014-05-30 | Braskem S.A. | Metallocene catalyst supported by hybrid supporting means, process for producing same, polimerization process for producing an ethylene homopolymer or copolymer with broad or bimodal molar mass distribution, use of the supported metallocene catalyst and ethylene polymer with broad or bimodal molar mass distribution |
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