US2144234A - Method of forming friction facings - Google Patents
Method of forming friction facings Download PDFInfo
- Publication number
- US2144234A US2144234A US109850A US10985036A US2144234A US 2144234 A US2144234 A US 2144234A US 109850 A US109850 A US 109850A US 10985036 A US10985036 A US 10985036A US 2144234 A US2144234 A US 2144234A
- Authority
- US
- United States
- Prior art keywords
- blank
- facing
- formation
- friction facings
- strip
- 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
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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Compositions of linings; Methods of manufacturing
- F16D69/021—Compositions of linings; Methods of manufacturing containing asbestos
- F16D69/022—Compositions of linings; Methods of manufacturing containing asbestos in the form of fibres
-
- 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
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1051—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by folding
Definitions
- This invention relates to friction material, and particularly to friction facings for brakes, clutches and the like.
- the object of the invention is to provide a facing of the endless type, which will be efficient and durable.
- a further object of the invention is to provide a method of formation of the facing from flat material preferably from blanks cut from continuous sheet or strip stock.
- FIG. 1 is a plan view of a blank as cut from sheet or strip stock
- Fig. 2 is a perspective view of the strip of Fig. 1 bent into generally cylindrical form
- Fig. 3 is a perspective view showing the bent strip of Fig. 2 with its meeting edges fastened to complete the cylinder;
- Fig. 4 is a view of the cylinder of Fig. 3 on reduced scale flanged or cuffed over at each edge to provide double edged thickness in the blank;
- Fig 5 is a sectional view showing the cuffed blank of Fig. 4 folded into fiat form to assemble the cuffed edges as four thicknesses of an annular facing blank;
- Fig. 6 is a plan view of the annular facing shown in Fig. 5;
- Fig. '7 is a perspective view of the finished facing on a reduced scale.
- the facing is provided in annular form as shown at I0 (Fig. 7) and built up of a plurality of thicknesses of material and comprising two re-entrantly folded portions II, I2 connected by an inner portion I3, all formed from a continuous blank of sheet or strip material.
- a blank I5 shown in plan view in Fig. 1 is first cut from the sheet or strip and has the cut edges I6 on similar bias at each end.
- the material may be of woven fabric or other fibrous formation and preferably is so cut that the long sides II follow the direction of the threads or cords where the material is of woven type.
- This blank I 5 is then bent into generally cylindrical formation (Figs. 2 and 3) and sewed or otherwise fastened as indicated at I8 to join together the ends I6 of the blank.
- Each edge of the cylindrical blank of Fig. 3 is then turned outward into flanged or sleeved formation 20 (Fig. 4) leaving a space 2
- Fig. 4 The flanged cylinder formation of Fig. 4 is then folded along this center space 2
- the sleeved edges provide the re-entrantly folded portions II and I2 and the space ZI-leaves the central portion of the blank to form the connecting inner portion I3.
- the folded ring I 0 thus formed is then impregnated with a thermosetting fluid, is dried and is given a preliminary set in a heated die to vulcanize'or otherwise fix the folds together forming a compact mass with strong mutual adherence.
- the vulcanized ring I0 is then curved by oven baking or other suitable treatment to complete the ring formation, after which the surface is ground and drilled, and otherwise finished to comply with specifications.
- fabric of asbestos or other suitable material may be passed through a rubber-friction calender, or rubber cement brushed on both sides of the fabric, or the fabric may receive the frictioning rubber in some other suitable mannenand this rubberized fabric is used for the blank I5 being cut, bent, fastened, flanged and molded as described above, except that the sewed joint I8 of Fig. 3 may be replaced by an overlapped or scarfed engagement between the edges with pressure applied to the joint to produce a strong mutual adherence.
- Substantially no wastage is involved in the form of the facing of this invention, and any desired number of thicknesses may be provided, all integrally joined and strongly compacted and fastened together.
- the original longitudinal distribution of the strands in the fabric is preserved in that these strands appear following circularly around the final facing prodnot, and in tightly bound overlap at their ends where the ends of the seam are bent back in the flanging of the blank as illustrated in Fig. 4.
- the resulting structure is simple, strong and compact and extremely durable in use.
- thermosetting liquid a material that they lie in face to face relation forming two identical pairs of folds in parallel planes, each pair on each side of a central plane being identically shaped and stressed, said material being provided with an impregnating thermosetting liquid, and pressing said strip in said folded form and applying heat to harden said thermosetting liquid.
Description
A. C. TEETSEL Jan. '17, 1939.
METHOD OF FORMING FRICTION FACING-S Filed Nov. 9, 1936 94% ATTORN EYS dim Patentecl Jan. 17, 1939 UNITED STATES METHOD OF FORMING FRICTION FACINGS Alvin C. Teetsel, Philadelphia, Pa., assignor, by mesne assignments, to Ferodo and Asbestos Inc., New Brunswick, N. J., a corporation of New Jersey Application November 9, 1936, Serial No. 109,850
1 Claim.
This invention relates to friction material, and particularly to friction facings for brakes, clutches and the like.
The object of the invention is to provide a facing of the endless type, which will be efficient and durable.
A further object of the invention is to provide a method of formation of the facing from flat material preferably from blanks cut from continuous sheet or strip stock.
In the accompanying drawing illustrating the invention Fig. 1 is a plan view of a blank as cut from sheet or strip stock;
Fig. 2 is a perspective view of the strip of Fig. 1 bent into generally cylindrical form;
Fig. 3 is a perspective view showing the bent strip of Fig. 2 with its meeting edges fastened to complete the cylinder;
Fig. 4 is a view of the cylinder of Fig. 3 on reduced scale flanged or cuffed over at each edge to provide double edged thickness in the blank;
Fig 5 is a sectional view showing the cuffed blank of Fig. 4 folded into fiat form to assemble the cuffed edges as four thicknesses of an annular facing blank;
Fig. 6 is a plan view of the annular facing shown in Fig. 5; and
Fig. '7 is a perspective view of the finished facing on a reduced scale.
In the specific embodiment of the invention shown in the drawing the facing is provided in annular form as shown at I0 (Fig. 7) and built up of a plurality of thicknesses of material and comprising two re-entrantly folded portions II, I2 connected by an inner portion I3, all formed from a continuous blank of sheet or strip material.
In the fabrication of the final facing, a blank I5 shown in plan view in Fig. 1 is first cut from the sheet or strip and has the cut edges I6 on similar bias at each end. The material may be of woven fabric or other fibrous formation and preferably is so cut that the long sides II follow the direction of the threads or cords where the material is of woven type.
This blank I 5 is then bent into generally cylindrical formation (Figs. 2 and 3) and sewed or otherwise fastened as indicated at I8 to join together the ends I6 of the blank.
Each edge of the cylindrical blank of Fig. 3 is then turned outward into flanged or sleeved formation 20 (Fig. 4) leaving a space 2| between the sleeved edges for formation of the connecting strip I3 of the final facing.
The flanged cylinder formation of Fig. 4 is then folded along this center space 2| so as to bring the sleeves 20 face to face and mold the whole ring into annular disk formation as shown in Fig. 5. The sleeved edges provide the re-entrantly folded portions II and I2 and the space ZI-leaves the central portion of the blank to form the connecting inner portion I3.
The folded ring I 0 thus formed is then impregnated with a thermosetting fluid, is dried and is given a preliminary set in a heated die to vulcanize'or otherwise fix the folds together forming a compact mass with strong mutual adherence. The vulcanized ring I0 is then curved by oven baking or other suitable treatment to complete the ring formation, after which the surface is ground and drilled, and otherwise finished to comply with specifications.
In the final structure four thicknesses of the original material are integrally joined together by the inner portion I3 and strongly adhere to each other due to the impregnation and vulcanizing. Where fabric material is used the strands of the original material extend in complete circular formation with overlapping ends resulting from the Z-formation'of the seam (Fig. 4). Instead of impregnating the ring in its final folded condition, it may be impregnated with the thermosetting fluid at any previous point in the process. For instance, fabric of asbestos or other suitable material may be passed through a rubber-friction calender, or rubber cement brushed on both sides of the fabric, or the fabric may receive the frictioning rubber in some other suitable mannenand this rubberized fabric is used for the blank I5 being cut, bent, fastened, flanged and molded as described above, except that the sewed joint I8 of Fig. 3 may be replaced by an overlapped or scarfed engagement between the edges with pressure applied to the joint to produce a strong mutual adherence.
Substantially no wastage is involved in the form of the facing of this invention, and any desired number of thicknesses may be provided, all integrally joined and strongly compacted and fastened together. At the same time the original longitudinal distribution of the strands in the fabric is preserved in that these strands appear following circularly around the final facing prodnot, and in tightly bound overlap at their ends where the ends of the seam are bent back in the flanging of the blank as illustrated in Fig. 4. The resulting structure is simple, strong and compact and extremely durable in use.
I claim:
that they lie in face to face relation forming two identical pairs of folds in parallel planes, each pair on each side of a central plane being identically shaped and stressed, said material being provided with an impregnating thermosetting liquid, and pressing said strip in said folded form and applying heat to harden said thermosetting liquid.
VALVIN c. TEETSEL.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US109850A US2144234A (en) | 1936-11-09 | 1936-11-09 | Method of forming friction facings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US109850A US2144234A (en) | 1936-11-09 | 1936-11-09 | Method of forming friction facings |
Publications (1)
Publication Number | Publication Date |
---|---|
US2144234A true US2144234A (en) | 1939-01-17 |
Family
ID=22329903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US109850A Expired - Lifetime US2144234A (en) | 1936-11-09 | 1936-11-09 | Method of forming friction facings |
Country Status (1)
Country | Link |
---|---|
US (1) | US2144234A (en) |
-
1936
- 1936-11-09 US US109850A patent/US2144234A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2144831A (en) | Friction clutch facing | |
US2288054A (en) | Method of making rubber flooring | |
US2426058A (en) | Plastic sheet material and method | |
US2229982A (en) | Nonmetallic gear wheel blank and method of making same | |
US2427229A (en) | Method of joining a sheetlike material to other materials, and the product so produced | |
US1352740A (en) | Vulcanized rubber hose | |
US2033354A (en) | Manufacture of diaphragms | |
US2144234A (en) | Method of forming friction facings | |
US2070527A (en) | Flexible wood-faced material | |
US2190767A (en) | Friction disk for multiple disk brakes | |
US2392373A (en) | Belt | |
US1610173A (en) | Friction disk and the method of making same | |
US1935519A (en) | Tread member and method of making the same | |
US1535647A (en) | Cord-tire stock and method of making same | |
US2273732A (en) | Method of making slide fasteners | |
US2268865A (en) | Method of manufacturing raw edge belts | |
US1976257A (en) | Laminated body and method of making same | |
US2392844A (en) | Structural unit and method of making structures therewith | |
US2533742A (en) | Ring packing and method of making the same | |
USRE19494E (en) | Compound ventilated fabric and method of making same | |
US2542593A (en) | Method of making circular bodies of laminated plastic | |
US2150937A (en) | Clutch facing | |
US2037666A (en) | Manufacture of diaphragms | |
US2353977A (en) | Packing device for fluid pressure apparatus | |
US1561222A (en) | Composite gear |