US281828A - William f - Google Patents
William f Download PDFInfo
- Publication number
- US281828A US281828A US281828DA US281828A US 281828 A US281828 A US 281828A US 281828D A US281828D A US 281828DA US 281828 A US281828 A US 281828A
- Authority
- US
- United States
- Prior art keywords
- pulley
- covering
- cork
- belt
- rim
- 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
- 239000007799 cork Substances 0.000 description 32
- 239000000203 mixture Substances 0.000 description 8
- 210000001503 Joints Anatomy 0.000 description 6
- 239000004568 cement Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000005060 rubber Substances 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 208000008313 Contusions Diseases 0.000 description 2
- 210000004080 Milk Anatomy 0.000 description 2
- 229920001800 Shellac Polymers 0.000 description 2
- 241000779819 Syncarpia glomulifera Species 0.000 description 2
- 229940036248 Turpentine Drugs 0.000 description 2
- 229910000004 White lead Inorganic materials 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 235000021388 linseed oil Nutrition 0.000 description 2
- 239000000944 linseed oil Substances 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 239000001739 pinus spp. Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229940113147 shellac Drugs 0.000 description 2
- 235000013874 shellac Nutrition 0.000 description 2
- 239000004208 shellac Substances 0.000 description 2
- 239000004328 sodium tetraborate Substances 0.000 description 2
- 235000010339 sodium tetraborate Nutrition 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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
- F16H55/48—Pulleys manufactured exclusively or in part of non-metallic material, e.g. plastics
Definitions
- This invention relates to an improvement in that class of pulleys which are provided on their periphery or face with a covering for the purpose of increasing the adhesion of the belt upon the pulley, and to prevent the slipping of the belt and the loss of power result ing therefrom.
- wood, leather, rubber, and paper have been used for such covering; but none of these constructions are entirely satisfactory, as they all become hard and smoothin course of time and permit the belt to slip, as it would if no covering were applied to the pulleys.
- wood cannot be readily applied to the pulley as a covering, andleather and rubber, when used for this purpose, becomehard and brittle under the pressure of the belt and crack.
- the object of my invention is the construction of a pulley having a covering which possesses considerable adhesiveness, and which will not become hard and smooth by use, and which is easily applied to the pulley.
- My invention consists to that end of a pulley provided on its face or periphery with a represents a side elevation, and Fig. 2, a crosssection of my improved pulley.
- Fig. 3 is a perspective view of a portion of the rim of the pulley.
- A represents the rim of the pulley
- B the covering of cork, which is applied to the face or rim by means of a suitable cement.
- cork covering In applying the cork covering to the pulley I prefer to proceed in the following manner: The pulley is first heated to a temperature of 100 Fahrenheit, or thereabout, and the rim of the pulley is then covered with a co1nposition composed of white lead, boiled linseedoil, acetate of lead, and boraX. I select for the covering cork which is soft and elastic, the brittle kind not being desirable for this purpose.
- the cork is applied in strips or sheets having a thickness of about one-eighth of an inch; but any other thickness may be employed, if desired.
- the cork is coated on its inner side with a composition composed of white glue, milk, shellac, and Venetian turpentine. This composition is applied to the cork warm, and the rim of the pulley is also coated with the same composition in a warm state. The sheets or strips of cork are then applied to the face of the pulley and adhere thereto very firmly.
- transverse joints between the several strips of cork of which the covering is composed are beveled, as shown at c, and the bevels are so arranged with reference to the direction in which the pulley runs that the edge of the outer bevel forms the rear edge of the joint.
- the facing of the pulley may be turned off before the cork covering is applied thereto; or the covering may be applied to the pulley in its rough state as it comes from the sand; and the cork covering can. be trued off afterward by turning the pulley on a suitable spindle and applying a file or rasp to the cork covering.
- cork covering herein described does not become hard and smooth under the pressand adhesive condition under continued use
- the covering is cheap and easily applied to the pulley, and if secured to the pulley by the cement, as hereinbefore described, the covering will not change or become loose underthe influence of heat, steam, and moisture, to which pulleys employed in machinery are frequently exposed.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Pulleys (AREA)
Description
(No Model.)
8 W. P. BOYSEN.
PULLEY.
No. 281,828. Patented July 24, 1883.
n. PEYERS, Ph'olo-Lilhcirapm Washinglan. n. c
.UNITED STATES PATENT YVILLIAM F. BOYSEN, OF BUFFALO, NEW YORK.
PULLEY.
SPECIFICATION forming part of Letters Patent No. 281,828, dated July 24, 1883 Application filed January 10, 1883. (No model.)
To all whom it may concern.-
Be it known that I, WILLIAM F. BOYSEN, of the city of Buffalo, in the county of Erie and State of New York, have invented a new and useful Improvement in Pulleys, of which the following is a specification.
This invention relates to an improvement in that class of pulleys which are provided on their periphery or face with a covering for the purpose of increasing the adhesion of the belt upon the pulley, and to prevent the slipping of the belt and the loss of power result ing therefrom. Heretofore wood, leather, rubber, and paper have been used for such covering; but none of these constructions are entirely satisfactory, as they all become hard and smoothin course of time and permit the belt to slip, as it would if no covering were applied to the pulleys. In addition to these disadvantages, wood cannot be readily applied to the pulley as a covering, andleather and rubber, when used for this purpose, becomehard and brittle under the pressure of the belt and crack. The object of my invention is the construction of a pulley having a covering which possesses considerable adhesiveness, and which will not become hard and smooth by use, and which is easily applied to the pulley.
My invention consists to that end of a pulley provided on its face or periphery with a represents a side elevation, and Fig. 2, a crosssection of my improved pulley. Fig. 3 is a perspective view of a portion of the rim of the pulley.
Like letters of reference refer to like parts in the several figures.
A represents the rim of the pulley, and B the covering of cork, which is applied to the face or rim by means of a suitable cement.
In applying the cork covering to the pulley I prefer to proceed in the following manner: The pulley is first heated to a temperature of 100 Fahrenheit, or thereabout, and the rim of the pulley is then covered with a co1nposition composed of white lead, boiled linseedoil, acetate of lead, and boraX. I select for the covering cork which is soft and elastic, the brittle kind not being desirable for this purpose. The cork is applied in strips or sheets having a thickness of about one-eighth of an inch; but any other thickness may be employed, if desired. The cork is coated on its inner side with a composition composed of white glue, milk, shellac, and Venetian turpentine. This composition is applied to the cork warm, and the rim of the pulley is also coated with the same composition in a warm state. The sheets or strips of cork are then applied to the face of the pulley and adhere thereto very firmly.
The transverse joints between the several strips of cork of which the covering is composed are beveled, as shown at c, and the bevels are so arranged with reference to the direction in which the pulley runs that the edge of the outer bevel forms the rear edge of the joint. By this construction of the joints an unbroken surface of the covering is insured and the rivets or other projection which. may exist on the belt are prevented from entering the joints and injuring the same.
The facing of the pulley may be turned off before the cork covering is applied thereto; or the covering may be applied to the pulley in its rough state as it comes from the sand; and the cork covering can. be trued off afterward by turning the pulley on a suitable spindle and applying a file or rasp to the cork covering.
The cork covering herein described does not become hard and smooth under the pressand adhesive condition under continued use,
and completely prevents the slipping of the belt upon the pulley, and thereby saves a large percentage of power which would otherwise be lost.
The covering is cheap and easily applied to the pulley, and if secured to the pulley by the cement, as hereinbefore described, the covering will not change or become loose underthe influence of heat, steam, and moisture, to which pulleys employed in machinery are frequently exposed.
I am aware that it is not new to construct the grain, whereby the cork coating is pre pulleys of disks of cork secured side by side served in its original state ofv efficiency. upon a hub which extends through the series I claim as my invention 7 15 of disks, and I do not claim such construc- The combination, witha pulley, of a facing 5 tion, which is essentially different from my or covering, B, composed of sheets or strips improvement, because in a pulley so 0011- of cork cemented to the rim or face of the pul strueted of disks the driving-belt will run ley, substantially as set forth.
more or less on the end of the grain on alarge T T l i I V I portion of the eork-surfaee, and thereby tend M F BOX SEN IO to crush or bruise the cork, while in my coat- Vitnesses:
ing, which is applied in sheets or strips, the hi0. J. BONNER,
belt runs on all parts of the cork surface with Time. L. Porr.
Publications (1)
Publication Number | Publication Date |
---|---|
US281828A true US281828A (en) | 1883-07-24 |
Family
ID=2351038
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US281828D Expired - Lifetime US281828A (en) | William f |
Country Status (1)
Country | Link |
---|---|
US (1) | US281828A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070153385A1 (en) * | 2006-01-05 | 2007-07-05 | Pentax Corporation | Dust-proof, light-transmitting member and its use, and imaging apparatus comprising same |
-
0
- US US281828D patent/US281828A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070153385A1 (en) * | 2006-01-05 | 2007-07-05 | Pentax Corporation | Dust-proof, light-transmitting member and its use, and imaging apparatus comprising same |
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