US356022A - Brook - Google Patents
Brook Download PDFInfo
- Publication number
- US356022A US356022A US356022DA US356022A US 356022 A US356022 A US 356022A US 356022D A US356022D A US 356022DA US 356022 A US356022 A US 356022A
- Authority
- US
- United States
- Prior art keywords
- belt
- layers
- tacks
- clinched
- pointed
- 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
- 239000000463 material Substances 0.000 description 10
- 239000004744 fabric Substances 0.000 description 8
- 239000004753 textile Substances 0.000 description 8
- 239000010985 leather Substances 0.000 description 4
- 210000001699 lower leg Anatomy 0.000 description 4
- 241000272525 Anas platyrhynchos Species 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000003247 decreasing Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000149 penetrating Effects 0.000 description 2
- 238000004080 punching Methods 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G5/00—V-belts, i.e. belts of tapered cross-section
- F16G5/04—V-belts, i.e. belts of tapered cross-section made of rubber
- F16G5/06—V-belts, i.e. belts of tapered cross-section made of rubber with reinforcement bonded by the rubber
Definitions
- Fig. 2 is a plan or face view of a portion of such a belt. Similar letters indicate corresponding parts.
- the letter A designates the body of a belt which is composed of a number of layers of a textile fabric-such as duckeither of a single piece of such material being folded in a proper manner or of several layers placed one upon the other.
- the belt is composed of four layers of duck, and the material in this case is folded to cause its outer edges to meet in the center, and then both the double portions thus formed are folded onto each other about the said center, thereby forming a fourply belt.
- These layers are united by a series of pointed tacks properly distributed and driven through all the layers composing the belt. rPhe projecting points of these tacks are bent over or clinched, as shown in Big. 2 of the drawings, thereby firmly uniting the layers. That surface of the belt upon which the tacks are clinched is intended to be in contact with the rims of the pulleys when the belt is applied to use.
- rivets render the same more liable to slip on the pulleys, owing to the fact that the large heads which must be employ-ed to fasten the shanks form large depressions, whereby a considerable portion of the available frictional surface is removed. If the heads of the rivets come into contact with the pulley the percentage of slip is not decreased, as but asmall amount of friction is obtainable between the two metallic surfaces.
- the numerous large heads also render the belt less pliable, and when rounding smaller pulleys is liable to slip, which reduces the possible power that can be transmitted through the belt.
- a belt composed of two or more layers or folds of textile fabric united throughout its length by a series of pointed tacks driven through the layers and clinched, substantially as shown and described.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
Description
(No Model.)
No. 356,022. Patented Jan. 11, 1887.
- WHL WITNESSES .IM/ENTOR ,MM Mx'cxmam- X). Wswcok.
. l Q B y (1L. rappr/ i l; y TTURJVE YS n PErns. Phammhngqphar. was
STATES EETCE.
PATENT BELTING.
SPECIFICATION forming part of Letters PatentNo. 356,022, dated January 11,1887.
Application led September 30, 1886. Serial No. 214,972. (No model.)
more layers or folds of textile fabric united throughout its length by a series of pointed Vtacks driven through the layers and clinched,
all of which is more fully pointed out in the following specification and claim, and illustrated in the accompanying drawings, in which- Figure l represents a transverse section ot' a belt constructed according to my invention.
Fig. 2 is a plan or face view of a portion of such a belt. Similar letters indicate corresponding parts. In the drawings, the letter A designates the body of a belt which is composed of a number of layers of a textile fabric-such as duckeither of a single piece of such material being folded in a proper manner or of several layers placed one upon the other.
In the example here illustrated the belt is composed of four layers of duck, and the material in this case is folded to cause its outer edges to meet in the center, and then both the double portions thus formed are folded onto each other about the said center, thereby forming a fourply belt. These layers are united by a series of pointed tacks properly distributed and driven through all the layers composing the belt. rPhe projecting points of these tacks are bent over or clinched, as shown in Big. 2 of the drawings, thereby firmly uniting the layers. That surface of the belt upon which the tacks are clinched is intended to be in contact with the rims of the pulleys when the belt is applied to use.
Heretofore it has been customary to unite the layers of leather or other material composing a belt by means of rivets; but-in their use it is necessary to punch or pick out holes for the passage ofthe shanks, in which operation the threads or bers from which the fabric is woven are cut through and torn, thereby seriouslyv impairing the strength ot' the nished belt. The use of pointed tacks for uniting the textile layers avoids not only the necessityrof punching or picking out holes, which operation involves time and expense, but the tacks in penetrating the material push or force the threads or fibers to one'side without cutting or tearing them. As a considerable number of tacks are employed in uniting the layers, the belt, in reverse to being injured, is rendered more sound by the lateral compression of the iibers or threads in the fabric.
In addition to impairing the strength of the belt, rivets render the same more liable to slip on the pulleys, owing to the fact that the large heads which must be employ-ed to fasten the shanks form large depressions, whereby a considerable portion of the available frictional surface is removed. If the heads of the rivets come into contact with the pulley the percentage of slip is not decreased, as but asmall amount of friction is obtainable between the two metallic surfaces. The numerous large heads also render the belt less pliable, and when rounding smaller pulleys is liable to slip, which reduces the possible power that can be transmitted through the belt. The small portion ofthe tack which is clinched sinks into the material of the belt and forms but a very small depression, and consequently does not influence lthe efficiency of the belt. By the use of these clinched tacks I provide a belt which .presents all or nearly all of its frictional surface to the pulley, and one which is as pliable and strong as the leather belt usually employed, while its production involves less expense. Y e
I do not claim herein what is claimed in my application for Letters Patent liled June 30, 1886, Serial No. 206,732, Letters Patent on which date October 19, 1886, No. 351,301.
IV hat I claim as new, and desire to secure by Letters Patent, is-
A belt composed of two or more layers or folds of textile fabric united throughout its length by a series of pointed tacks driven through the layers and clinched, substantially as shown and described.
In testimony whereof I have hereunto set my hand and seal in the presence of two subscribing witnesses.
ABRAHAM l). WESTBROOK.
Witnesses:
W. HAUFE, E. F. KAsTENnUBEP..
Publications (1)
Publication Number | Publication Date |
---|---|
US356022A true US356022A (en) | 1887-01-11 |
Family
ID=2425069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US356022D Expired - Lifetime US356022A (en) | Brook |
Country Status (1)
Country | Link |
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US (1) | US356022A (en) |
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0
- US US356022D patent/US356022A/en not_active Expired - Lifetime
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