US596678A - Ball-bearing eccentric - Google Patents
Ball-bearing eccentric Download PDFInfo
- Publication number
- US596678A US596678A US596678DA US596678A US 596678 A US596678 A US 596678A US 596678D A US596678D A US 596678DA US 596678 A US596678 A US 596678A
- Authority
- US
- United States
- Prior art keywords
- eccentric
- balls
- groove
- bearing
- ball
- 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
- 238000010276 construction Methods 0.000 description 8
- 230000004048 modification Effects 0.000 description 4
- 238000006011 modification reaction Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 210000001699 lower leg Anatomy 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
- F16C19/163—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
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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
- Y10T74/21—Elements
- Y10T74/211—Eccentric
- Y10T74/2116—Eccentric having anti-friction means, e.g., roller bearing, lubrication, etc.
Definitions
- My invention relates to a new and useful improvement in eccentrics and straps there for, and has for its object to provide a ballbearing between said concentric and strap which will overcome the many difficulties heretofore experienced by the use of such devices.
- This groove by its construction, is contracted at its outer portion, so that when the balls have once been placed therein they cannot drop therefrom even though the eccentricstrap be removed; but in order that the balls may be originally inserted within this groove and, when the occasion requires, withdrawn therefrom one by one I cut away one wall of E the groove and substitute therefor a cap E, which is hinged at F and is normally held closed by a spring G, so that when the balls are to be initially inserted within the groove they are placed through this cut-away portion, and likewise when they are to be with drawn they are extracted one by one there: through.
- H is the eccentric-strap,which is here made in a single piece, the opening therein being of somewhat greater diameter than the eccentric and having abeveled wall I formed there on, and suitable screw-threads J also formed within this opening.
- An adjusting-ring K whose periphery is threaded to match the threads J, is screwed within the opening in the eccentric and has an inclined wall L,which corresponds to the wall I, so that when this ring is in place two bearing-points will be held upon each ball, which, when taken in connection with the bearing-points D which these balls have upon the eccentric, it will be seen that four bearing-points are held by each ball, thereby setting the strap relative to the eccentric and at the same time permitting said eccentric to freely revolve within its strap.
- the adjusting-ring K is provided with a number of bolt-holes M for the passage of the bolts N, and a like number of bolt-holes are also formed through the straps, so that when the ring is properly adjusted it may be secured against accidental displacement by the bolts and suitable nuts run therein, as will be readily understood.
- a very decided advantage of my improvement over the old forms of eccentric-straps is that my improved strap is made by a single piece, and therefore the opening therein is a true circle, and when adjustment is necessary for any cause the bringing about of the same does not throw the strap out of true, as is the case with the old form of strap on ac count of being split and having to be drawn together when adjusted.
- an eccentric having a groove formed in its periphery so contracted at its outer portion as to retain balls therein, a series of balls located in said groove, a cap hinged to the eccentric to close an opening in the wall of the groove and an eccentric-strap bearing on said balls, as and for the purpose described.
- an eccentric having a groove formed in its periphery so contracted at its outer portion as to retain balls therein, a series of balls located in said groove, a cap hinged to the eccentric to close an opening in the wall of the groove, a spring bearing on said cap, an eccentric-strap having an adjustable ring thereon bearing on said balls, as and for the purpose described.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
Description
(No Model.)
F.H.HEATH. BALL BEARING EGCENTRIG.
No. 596,678. Patented Jan. 4, 1898.
A. 13 I K NITED STATES PATENT ()rrrcn.
FREDERICK H. HEATH, OF TACOMA, IVASHINGTON.
BALL-BEARING ECCENTRIC.
SPECIFICATION forming part of Letters Patent No. 596,678, dated January 4, 1898. Application filed March 9, 1897. Serial N01 626,612. (No model.)
To all whom it may concern:
Be it known that I, FREDERICK H. HEATH, a citizen of the United States, residing at Tacoma, in the county of Pierce and State of Washington, have invented certain new and useful Improvements in Ball-Bearing Eccentrics, of which, the following is a specification.
My invention relates to a new and useful improvement in eccentrics and straps there for, and has for its object to provide a ballbearing between said concentric and strap which will overcome the many difficulties heretofore experienced by the use of such devices.
In order that those skilled in the art to which this invention appertains may understand how to make and use the same, its construction and operation will now be described in detail, referring to the accompanying drawings, forming a part of this specification, in
- which are fitted therein, may have two firm points of bearing thereon, as indicated at D. This groove, by its construction, is contracted at its outer portion, so that when the balls have once been placed therein they cannot drop therefrom even though the eccentricstrap be removed; but in order that the balls may be originally inserted within this groove and, when the occasion requires, withdrawn therefrom one by one I cut away one wall of E the groove and substitute therefor a cap E, which is hinged at F and is normally held closed by a spring G, so that when the balls are to be initially inserted within the groove they are placed through this cut-away portion, and likewise when they are to be with drawn they are extracted one by one there: through.
H is the eccentric-strap,which is here made in a single piece, the opening therein being of somewhat greater diameter than the eccentric and having abeveled wall I formed there on, and suitable screw-threads J also formed within this opening. An adjusting-ring K, whose periphery is threaded to match the threads J, is screwed within the opening in the eccentric and has an inclined wall L,which corresponds to the wall I, so that when this ring is in place two bearing-points will be held upon each ball, which, when taken in connection with the bearing-points D which these balls have upon the eccentric, it will be seen that four bearing-points are held by each ball, thereby setting the strap relative to the eccentric and at the same time permitting said eccentric to freely revolve within its strap.
The adjusting-ring K is provided with a number of bolt-holes M for the passage of the bolts N, and a like number of bolt-holes are also formed through the straps, so that when the ring is properly adjusted it may be secured against accidental displacement by the bolts and suitable nuts run therein, as will be readily understood.
A very decided advantage of my improvement over the old forms of eccentric-straps is that my improved strap is made by a single piece, and therefore the opening therein is a true circle, and when adjustment is necessary for any cause the bringing about of the same does not throw the strap out of true, as is the case with the old form of strap on ac count of being split and having to be drawn together when adjusted.
While in most circumstances but little or no oil is needed for the free running of my improvement, it is preferable in high-speed machinery and that class of machinery which runs constantly for great lengths of time that effective means he provided for supplying the small quantity of oil needed, and I have therefore shown an oil-cup O, the shank of which is threaded through the strap, thereby delivering oil directly to the balls and-grooves in which they run, and this cup may be of any approved design,the exact construction thereof forming no part of my invention.
" While in practice I have found the construction just described as very advantageous, it is obvious that for heavy machinery, such as marine engines and the like, a greater bearing-surface would be advantageous, and with this object in View I have shown in Fig. 3 a slight modification of my invention, which consists of forming two grooves I in the sides ot the eccentric and contracting these grooves sufficiently at their outer portions to cause them to retain the balls Q and Q, comprising the two trains. Thus the balls can be only inserted or removed from the groove through the spring-actuated caps R. The strap S,
which is adapted for use in connection with this modification of eccentric, has formed upon the wall of its central opening an incline surface T, adapted to bear against the train of balls Q, while the adjusting-ring U, which is run within suitable threads within said space, has a beveled surface V, adapted to bear against the balls Q. This ring is likewise secured in its adjustment by suitable bolts WV.
Having thus fully described my invention, what I claim as new and useful is 1. In a device of the character described, an eccentric having a groove formed in its periphery so contracted at its outer portion as to retain balls therein, a series of balls located in said groove, a cap hinged to the eccentric to close an opening in the wall of the groove and an eccentric-strap bearing on said balls, as and for the purpose described.
2. In a device of the character described, an eccentric having a groove formed in its periphery so contracted at its outer portion as to retain balls therein, a series of balls located in said groove, a cap hinged to the eccentric to close an opening in the wall of the groove, a spring bearing on said cap, an eccentric-strap having an adjustable ring thereon bearing on said balls, as and for the purpose described.
3. In combination with an eccentric having a groove therein which is contracted at its outer portion, and having a cut-away portion leading from said groove, a series of balls, each of which is adapted to pass through the cut-away portion but may not otherwise be withdrawn from the groove, a cap for closing the cut-away portion and a spring for normally holding said cap in position, as and for the purpose described.
In testimony whereof I have hereunto affixed my signature in the presence of two subscribing witnesses.
FREDERICK H. HEATH.
\Vitnesses:
S. S. WILLIAMSON, H. K. MOORE.
Publications (1)
Publication Number | Publication Date |
---|---|
US596678A true US596678A (en) | 1898-01-04 |
Family
ID=2665324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US596678D Expired - Lifetime US596678A (en) | Ball-bearing eccentric |
Country Status (1)
Country | Link |
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US (1) | US596678A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2499485A (en) * | 1948-04-10 | 1950-03-07 | Fransen David | Eccentric drive |
US2530660A (en) * | 1946-07-26 | 1950-11-21 | Conveyor Systems | Bearing |
US4215906A (en) * | 1979-07-19 | 1980-08-05 | General Dynamics Corporation | Zero slip four-point contact thrust bearing |
US20010049738A1 (en) * | 2000-05-31 | 2001-12-06 | Miwako Doi | Calling originating method of mobile communication terminal, mobile communciation terminal, and information server apparatus |
-
0
- US US596678D patent/US596678A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2530660A (en) * | 1946-07-26 | 1950-11-21 | Conveyor Systems | Bearing |
US2499485A (en) * | 1948-04-10 | 1950-03-07 | Fransen David | Eccentric drive |
US4215906A (en) * | 1979-07-19 | 1980-08-05 | General Dynamics Corporation | Zero slip four-point contact thrust bearing |
US20010049738A1 (en) * | 2000-05-31 | 2001-12-06 | Miwako Doi | Calling originating method of mobile communication terminal, mobile communciation terminal, and information server apparatus |
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