US1536557A - Power-transmission belt - Google Patents
Power-transmission belt Download PDFInfo
- Publication number
- US1536557A US1536557A US579945A US57994522A US1536557A US 1536557 A US1536557 A US 1536557A US 579945 A US579945 A US 579945A US 57994522 A US57994522 A US 57994522A US 1536557 A US1536557 A US 1536557A
- Authority
- US
- United States
- Prior art keywords
- belt
- power
- grain
- transmission belt
- leather
- 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
- 239000010985 leather Substances 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 5
- 244000137852 Petrea volubilis Species 0.000 description 3
- 210000002615 epidermis Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/44—Mechanical treatment of leather surfaces
- C14B1/46—Fluffing, buffing, or sanding
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
Definitions
- unite-a starts sweetest r ewes-rear rowna-rnansrrrssron page.
- the coefficient of friction bet-ween the belt and its driving and V driven pulleys is increased by partially removing the hard pebbly grain surface of the epidermis of the leather, preferably by abrasion such as by running it past a rotating sand paperwheel, and that a belt so treated will transmit more power under less tension and last longer than untreated belts with a hard grain surface.
- the belt may be constructed in the usual way, in convenient lengths, say of 300 feet, and passed at a relatively slow speed under a rotating sand paper wheel having a peripheral speed of perhaps three or four thousand feet per minute, the pressure of the wheel upon the belt being regulated to suit the sharpness of the sand and the hardness of the particu' lar leather so as to smooth off the slight irregularities of the grain surface and produce a velvety smooth finish as distinguished from the hard shinyfinish of the original grain surface.
- Any suitable abrading apparatus may be utilized for performing the process, but I prefer to use a machine of the type shown in the accompanying illustrative diagram or drawing, wherein a sand paper wheel 11 is mounted upon a horizontal shaft 12 journaled in bearings 13 which maybe adjusted vertically ts vary the height of the wheelabove the table 14 to suit the thickness of the belt.
- a pressure roller 15 of suitable dimensions is mounted parallel to the under side of the sand paper wheel and arranged to be automatically adjustable toward and from the latter to suit slight irregularities in the belt. This automatic adjustment may be provided by arranging the supporting bearings 16 for the pressure roller so as to have a slight vertical sliding movement in suitable guides 17, being pressed upward by springs 18.
- the compression of the springs may be increased or decreased to suit the character of the leather under treatment by any suitable means, such as the cams 19 on the shaft 20 which may be turned by the hand lever 21.
- Both the sandpaper wheel and pressure roller are preferably driven by suitablepower means, such as the belts 2-2, 23 and 24, from the motor 25.
- suitable feeding device for controlling the speed ofthe belt past the sand. paper wheel may be utilized, such as the oppositely geared feed rolls 26, 27, which in the illustrative apparatus, are driven by the belt 28.
- the feed rolls may be separated to release the belt by any suitable means, such as'the hand lever 29 which raises the upper roll when raised.
- the abraded surface After the 'abrading operation is completed 1 preferably coat the abraded surface with a light coating of any suitable pigment or blacking to fill the pores of the grain to improve its appearance, and increase its adhesion to the pulleys.
- the invention is not restricted to the par.-
- a power transmission belt having a grain leather working surface treated uniformly by abrading to thereby increase the adhesion between the belt and the pulleys over which it may run.
- a multiply power transmission belt having a grain leather working surface treated by abrading to remove part of the epidermis throughout its length and thereby increase the adhesion between. the belt and the, pulleys over which it may run.
- a leather belt for power transmission purposes having a grain side working surface With a portion of the epidermis removed uniformly from its entire surface whereby to increase the coeflicient of friction between the belt and a pulley.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Description
May 5, 1925. I
. F. W. BROWNING POWER TRANSMISSION BELT Filed Aug. 5, 1922 Patented May 5, 1925.
, unite-a starts sweetest r ewes-rear rowna-rnansrrrssron page.
Applicatioufiled August 5, 1922. Serial No. 579,945.
To all whom it may concern:
Be it known that I, Fnuronun W. BROWN- ING, a citizen of the United States, and resident of Kingsport, Sullivan County, Tennessee, have invented an Improvement in Power-Transmission Belts, of which the following description, in connection with the with cement, to make either single or multiple ply leather belting, the grain side of the leather being on the outside of the multiple ply belts.
I have discovered that the coefficient of friction bet-ween the belt and its driving and V driven pulleys is increased by partially removing the hard pebbly grain surface of the epidermis of the leather, preferably by abrasion such as by running it past a rotating sand paperwheel, and that a belt so treated will transmit more power under less tension and last longer than untreated belts with a hard grain surface.
In practising the invention, the belt may be constructed in the usual way, in convenient lengths, say of 300 feet, and passed at a relatively slow speed under a rotating sand paper wheel having a peripheral speed of perhaps three or four thousand feet per minute, the pressure of the wheel upon the belt being regulated to suit the sharpness of the sand and the hardness of the particu' lar leather so as to smooth off the slight irregularities of the grain surface and produce a velvety smooth finish as distinguished from the hard shinyfinish of the original grain surface.
Any suitable abrading apparatus may be utilized for performing the process, but I prefer to use a machine of the type shown in the accompanying illustrative diagram or drawing, wherein a sand paper wheel 11 is mounted upon a horizontal shaft 12 journaled in bearings 13 which maybe adjusted vertically ts vary the height of the wheelabove the table 14 to suit the thickness of the belt. A pressure roller 15 of suitable dimensions is mounted parallel to the under side of the sand paper wheel and arranged to be automatically adjustable toward and from the latter to suit slight irregularities in the belt. This automatic adjustment may be provided by arranging the supporting bearings 16 for the pressure roller so as to have a slight vertical sliding movement in suitable guides 17, being pressed upward by springs 18. The compression of the springs may be increased or decreased to suit the character of the leather under treatment by any suitable means, such as the cams 19 on the shaft 20 which may be turned by the hand lever 21. Both the sandpaper wheel and pressure roller are preferably driven by suitablepower means, such as the belts 2-2, 23 and 24, from the motor 25. Any suitable feeding device for controlling the speed ofthe belt past the sand. paper wheel may be utilized, such as the oppositely geared feed rolls 26, 27, which in the illustrative apparatus, are driven by the belt 28. The feed rolls may be separated to release the belt by any suitable means, such as'the hand lever 29 which raises the upper roll when raised.
After the 'abrading operation is completed 1 preferably coat the abraded surface with a light coating of any suitable pigment or blacking to fill the pores of the grain to improve its appearance, and increase its adhesion to the pulleys.
The invention is not restricted to the par.-
ticular means shown and described for treating the belt, nor to a belt treated by the particular process described, the means and processes shown and described being illustrative only.
What I claim and desire to secure by Letters Patent is as follows:
1. A power transmission belt having a grain leather working surface treated uniformly by abrading to thereby increase the adhesion between the belt and the pulleys over which it may run.
2. A multiply power transmission belt having a grain leather working surface treated by abrading to remove part of the epidermis throughout its length and thereby increase the adhesion between. the belt and the, pulleys over which it may run.
3 power transmission belt comprising a plurality of assembled strips having a,
grain leather working surface treated by abrading to remove the objectionably hard pebbly grain over the entire surface and thereby increase the adhesion between the belt and the pulleys over which it may run.
4. A leather belt for power transmission purposes having a grain side working surface With a portion of the epidermis removed uniformly from its entire surface whereby to increase the coeflicient of friction between the belt and a pulley.
In testimony whereof, I have signed my name to this specification.
FLETCHER W. BROWNING.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US579945A US1536557A (en) | 1922-08-05 | 1922-08-05 | Power-transmission belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US579945A US1536557A (en) | 1922-08-05 | 1922-08-05 | Power-transmission belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1536557A true US1536557A (en) | 1925-05-05 |
Family
ID=24318994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US579945A Expired - Lifetime US1536557A (en) | 1922-08-05 | 1922-08-05 | Power-transmission belt |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1536557A (en) |
-
1922
- 1922-08-05 US US579945A patent/US1536557A/en not_active Expired - Lifetime
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