US594357A - Alonzo j - Google Patents
Alonzo j Download PDFInfo
- Publication number
- US594357A US594357A US594357DA US594357A US 594357 A US594357 A US 594357A US 594357D A US594357D A US 594357DA US 594357 A US594357 A US 594357A
- Authority
- US
- United States
- Prior art keywords
- casing
- cap
- rollers
- alonzo
- roller
- 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
- 210000000614 Ribs Anatomy 0.000 description 8
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 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
- 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
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/40—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings with loose spacing bodies between the rollers
Definitions
- Fig. 2 is a section on line 2 2 of Fig. 1.
- Fig. 3 is a side elevation of the cap, showing its inner side.
- the casing 00 and its cap d together form a box in which are contained the bearing-rollers e and g.
- the rollers e bear upon the block-shaft f and upon the inner wall of the casing, and each roller is provided with trunnions e e, which are adapted to engage annular ribs a and 01 formed, respectively, on the end wall a of the casing and on the cap d, this arrangement serving to retain the rolls in the casing when for any reason the sheave is removed from its shaft.
- the cap 01 is provided with an annular abutment 01 which bears on the outer surface of the casing a. at the open end of the latter and prevents said casing from spreading at its open end under the pressure to which it is subjected when in use.
- the cap cl was provided with a wide recess extending from the abutment d to the trunnionengaging rib d, and the end wall a of the casing was provided with a similar wide recess extending from the transverse or side wall of said casing to the annular rib a It has been found that this affords insufficient end bearing for the rollers c.
- rollers by skewing or tilting would become unevenly worn and would likewise wear away the interior of the casing unevenly, so as to impair the parallel alinement of the rollers with the axis of the central spindle f, which is necessary to the best working results.
- the small rollers g are preferably composed of inoxidizable metal, such as bronze, and they act to separate the rollers e from each other and to clean or wear off any accumulation of rust that may form on the surfaces of the said larger rollers, which are preferably composed of steel.
- a sheave or pulley having a central cavity, a bushing or casing inserted in said cavity and having at one end an integral inwardlyprojecting flange forming the fixed end wall of a roller-holding space within said casing, and an annular end piece or cap of larger di ameter than the casing and attached outside abutments and ribs together constituting adequate end bearings for the said rollers.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Rolls And Other Rotary Bodies (AREA)
Description
'(No Model.)
A. J. Q. KNOWLTON. ROLLER BUSHING FOR SHEAVES No. 594,357. Patented-Nov. 23, 1897.
WITNESSES.
To all whom it may concern:
NITED STATES PATENT Enron.
ALONZO J. Q. KNOWLTON, OF CAMDEN, MAINE, ASSIGNOR TO THE DUPLEX ROLLER BUSHINGS COMPANY, OF SAME PLACE.
ROLLER-BUSHING FOR SHEAVES.
SPECIFICATION forming part of Letters Patent No. 594,357, dated November 23, 1897. Application filerl March 15, 1897. Serial No. 627,684. (No model) Be it known that I, ALONZO J. Q. KNOWL- TON, of Camden, in the county of Knox and State of Maine, have invented certain new and useful Improvements in Roller-Bushings for Sheaves, of which the following is a speci- 'fication.
ing my invention, the end cap of the bushing having been removed to expose the rollers. Fig. 2 is a section on line 2 2 of Fig. 1. Fig. 3 is a side elevation of the cap, showing its inner side.
The same letters of reference indicate the same parts in all the figures.
Referring to the drawings, or represents a cylindrical metallic casing inserted in a central opening of the sheave b and secured thereto by transversely-extending screws 0,
whose ends screw into an outer flange a of the casing. These screws serve also to secure the cap 01 to the casing a, the said cap being provided with suitable holes (1 to receive the screws. The casing 00 and its cap d together form a box in which are contained the bearing-rollers e and g. The rollers e bear upon the block-shaft f and upon the inner wall of the casing, and each roller is provided with trunnions e e, which are adapted to engage annular ribs a and 01 formed, respectively, on the end wall a of the casing and on the cap d, this arrangement serving to retain the rolls in the casing when for any reason the sheave is removed from its shaft. The cap 01 is provided with an annular abutment 01 which bears on the outer surface of the casing a. at the open end of the latter and prevents said casing from spreading at its open end under the pressure to which it is subjected when in use. Thus far the con struction agrees with that recited in the patent before referred to. In said patent the cap cl was provided with a wide recess extending from the abutment d to the trunnionengaging rib d, and the end wall a of the casing was provided with a similar wide recess extending from the transverse or side wall of said casing to the annular rib a It has been found that this affords insufficient end bearing for the rollers c. In practice the rollers by skewing or tilting would become unevenly worn and would likewise wear away the interior of the casing unevenly, so as to impair the parallel alinement of the rollers with the axis of the central spindle f, which is necessary to the best working results.
v It is one object of the present invention to overcome this difficulty, and I do so by providing annular abutments a d on the inner faces of the end wall a and the cap d, respectively, which abutments constitute end bearings for the rollers e. Narrow recesses e are left in both the cap and the end wall of the casing, which constitute runways for the trunnions e and assist in reventin tiltin a of the rollers 6. This provision of the abutments 01. d besides affording the advantages stated, serves to give additional strength to the casing and its cap to withstand the rough usage to which the said parts may be subjected.
The small rollers g, as in the former patent referred to, are preferably composed of inoxidizable metal, such as bronze, and they act to separate the rollers e from each other and to clean or wear off any accumulation of rust that may form on the surfaces of the said larger rollers, which are preferably composed of steel.
I claim A sheave or pulley having a central cavity, a bushing or casing inserted in said cavity and having at one end an integral inwardlyprojecting flange forming the fixed end wall of a roller-holding space within said casing, and an annular end piece or cap of larger di ameter than the casing and attached outside abutments and ribs together constituting adequate end bearings for the said rollers.
In testimony whereof I have signed my name to this specification, in the presence of IS two subscribing Witnesses, this 22d day of February, A. D. 1897.
ALONZO J. Q. KNO\VLTON.
\Vitnesses:
H. T. CRAWFORD, F. I. Coonns.
Publications (1)
Publication Number | Publication Date |
---|---|
US594357A true US594357A (en) | 1897-11-23 |
Family
ID=2663007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US594357D Expired - Lifetime US594357A (en) | Alonzo j |
Country Status (1)
Country | Link |
---|---|
US (1) | US594357A (en) |
-
0
- US US594357D patent/US594357A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5027A (en) | Box fob jotjbnals | |
US594357A (en) | Alonzo j | |
US384023A (en) | Fbank coebett | |
US244976A (en) | Pulley-block | |
US1270820A (en) | Roller-bearing. | |
US335047A (en) | Journal and bearing | |
US176171A (en) | Improvement in temple-rollers | |
US656017A (en) | Journal-bearing. | |
US973092A (en) | Sheave. | |
US253183A (en) | Friction-roll | |
US390341A (en) | Sheave-block for hoisting and conveying machines | |
US837703A (en) | Sheave-block. | |
US1019819A (en) | Roller-bearing. | |
US532629A (en) | Screen | |
US575312A (en) | Daniel t | |
US984987A (en) | Logging sheave-block. | |
US264989A (en) | Anti-friction bearing for pulley-blocks | |
US627551A (en) | Antifriction-bearing. | |
US699518A (en) | Tackle-block. | |
US7563A (en) | Packing-box and axle | |
US305396A (en) | Assigbxje to the | |
US304523A (en) | Anti friction journal box | |
US179794A (en) | Improvement in pitman-connections | |
US405031A (en) | Anti-friction bearing | |
US147910A (en) | Improvement in self-lubricating pulleys |