US1330973A - Wear-resisting structure - Google Patents
Wear-resisting structure Download PDFInfo
- Publication number
- US1330973A US1330973A US270984A US27098419A US1330973A US 1330973 A US1330973 A US 1330973A US 270984 A US270984 A US 270984A US 27098419 A US27098419 A US 27098419A US 1330973 A US1330973 A US 1330973A
- Authority
- US
- United States
- Prior art keywords
- wear
- supporting
- proportion
- alundum
- resisting structure
- 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
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000470 constituent Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/104—Treads
- E04F11/16—Surfaces thereof; Protecting means for edges or corners thereof
-
- 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
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31826—Of natural rubber
- Y10T428/3183—Next to second layer of natural rubber
Definitions
- My invention relates to the production of wear resisting surfaces for stair treads, floors, car steps and platforms, autoniobile pedals, shoe soles, horse shoe pads and the ike, and comprises an improved type of structure for such uses. It has been heretofore proposed to roduce structures of this kind by embedc ing a granulated or :powdered mass of some intensely hard and refractory mineral such as a ndum or corundum in a matrix of more easily fusible metal, such as cast iron, toform slabs,
- Figure 1 is a crosssection of a wear re- .sisting stair tread applied directly to the supporting staircase or tread.
- Fig. 2 is a cross section of a panel embodying my invention provided with a flexible backing or'ba-se, and
- a Fig. 3 shows a cross section of a special form of stair tread.
- 1, represents a composition formed by mixing a quantity of granulated and finely divided alundum, or similar hard material, with a quantity of rubber and the proper proportion of sulfur or other vulcanizing constituent, which composition is deposited in a layer, before vulcanization,-upon the stair tread 2.
- the greatest proportion of the rubber compound is at and near the lower surface where its adhesive properties during vulcanization may be directly exerted on the supporting base, and the least proportion in and near the upper surface, there being just enough to hold the alundum )articles.
- the object to be attained is the formation of a layer in which the exposed surface shall be a practically continuous body of the alundum or other wear resisting material, while the opposite surface next to the supporting structure has enough rubber in its composition to cause it to'firmly adhere thereto during the vulcanizing process.
- the whole structure (the stair tread and the superimposed layer) may be i 1 ture so produced is susceptible to vention previously convenient subjected to the action of any suitable vulcaniziiig apparatus.
- the result is an integral structure all the elements of which are closely knit together, which has a surface highly resistant to wear and which is at the same time slightly resilient, sound absorbent and non resonant.
- FIG. 2 Another of various possible methodsof attaching to a proper support the strip or panel constituting my invention is illustrated in Fig. 2, where 3, is a strip of canvas or other strong, flexible more or less porous or perforated substance onto which the matrix, with its contained alundum constituting the layer 1,- has been Vulcanized.
- the under surface of the entire structhe action projecting! of ordinary cements and the edges of the backing strip 3, may be easily nailed or clamped to the supporting base.
- the form shown in Fig. 1 may be most for some forms of stair treads,
- a wear resisting panel comprising a self supporting backing and a body of rubber vulcanized thereto, said rubber mineral masses embedded therein and on its exposed surface
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Description
G. P. BARTHOLOMEW.
WEAR RESISTING STRUCTURE.
APPLICATION. EILED JAN- 13. 191 9.
1,330,973, Patented-Feb. 17,1920.
.UNTTED STATES PATENT OFFICE.
GEORGE P. BABTHOLOMEW, OF ESSEX FELLS NEW JERSEY, -ASSIGNOR TO AMERICAN ABRASIVE METALS 00., A CORPORATION OF NEW YORK.
WEAR RESISTING STRUCTURE.
Specification of Letters Patent.
Patented Feb. 17, 1920.
v Application filed January 13, 1919. Serial No. 270,984.
.To all whom it may concern:
Be it known that I, GEORGE P. BAR- THOLOMEW, a citizen of the United States of America, residing at Essex Fells, Essex county, State of New J ersey',"-have invented certain new and useful Improvements in VVear-Resisting Structures, of "which th following is a specification.
My invention relates to the production of wear resisting surfaces for stair treads, floors, car steps and platforms, autoniobile pedals, shoe soles, horse shoe pads and the ike, and comprises an improved type of structure for such uses. It has been heretofore proposed to roduce structures of this kind by embedc ing a granulated or :powdered mass of some intensely hard and refractory mineral such as a ndum or corundum in a matrix of more easily fusible metal, such as cast iron, toform slabs,
strips and panels having a wear resisting surface consisting substantially of the granulated or powdered material referred to, but owing to the weight of the casting and the thickness necessary to make articles by this process, it has been' found unsuitable for manyuses. Moreover such prior structures are very rigid and cannot be made to My invention produces a light and some-' what flexible article and has other advantages evident to those skilled in the art and some of which are hereinafter set out with more or less particularity. The best embodiment of certain forms of my invention at present known to me are illustrated in the accompanying sheet'of drawings in which:
Figure 1 is a crosssection of a wear re- .sisting stair tread applied directly to the supporting staircase or tread.
Fig. 2 is a cross section of a panel embodying my invention provided with a flexible backing or'ba-se, and
a Fig. 3 shows a cross section of a special form of stair tread.
Throughout the drawings like reference characters indicate like parts: 1, represents a composition formed by mixing a quantity of granulated and finely divided alundum, or similar hard material, with a quantity of rubber and the proper proportion of sulfur or other vulcanizing constituent, which composition is deposited in a layer, before vulcanization,-upon the stair tread 2. Care should be taken that the greatest proportion of the alundum should be at or nearest the upper or wearing surface, and the least proportion thereof at the under, or adhering, surface as indicated in the drawing. Conversely the greatest proportion of the rubber compound is at and near the lower surface where its adhesive properties during vulcanization may be directly exerted on the supporting base, and the least proportion in and near the upper surface, there being just enough to hold the alundum )articles. This can be accomplished by making the original mixture of a certain conveniently workable proportion of alundum,- and then, after the layer has been formed, sprinkling an additional quantity of alundum particles in! excess on the surface of such layer and rolling or pressing them in as far as they will go. Also a surface of coarser particles may be added in this latter step, the original mixture comprising finer particles, or the desired localizing of the coarser particles at the wearing surfaces, while any excess of the vulcanizable constituents remains at the attaching surface, may be secured by other means. In any event the object to be attained is the formation of a layer in which the exposed surface shall be a practically continuous body of the alundum or other wear resisting material, while the opposite surface next to the supporting structure has enough rubber in its composition to cause it to'firmly adhere thereto during the vulcanizing process.
When the constituent elements are arranged as above described, and illustrated in the drawing, the whole structure (the stair tread and the superimposed layer) may be i 1 ture so produced is susceptible to vention previously convenient subjected to the action of any suitable vulcaniziiig apparatus. The result is an integral structure all the elements of which are closely knit together, which has a surface highly resistant to wear and which is at the same time slightly resilient, sound absorbent and non resonant.
Another of various possible methodsof attaching to a proper support the strip or panel constituting my invention is illustrated in Fig. 2, where 3, is a strip of canvas or other strong, flexible more or less porous or perforated substance onto which the matrix, with its contained alundum constituting the layer 1,- has been Vulcanized. The under surface of the entire structhe action projecting! of ordinary cements and the edges of the backing strip 3, may be easily nailed or clamped to the supporting base. The form shown in Fig. 1 may be most for some forms of stair treads,
car'steps, automobile pedals, horse shoes and similar structures when the vulcanizing can be done direct? to the supporting body, while that in ig. 2 couldmore easil be employed for flooring, tilin soles and geels for shoes, horse shoe pa s and in other cases where the supporting structure cannot for any reason be present during the vulcanizing step. Thus the form shown in .Fig. 2 could be nailed to a wooden stairway or floor, through the projecting portions of the back 3, if itwas not desired to perforate the material 1.
In addition to the advantages of my inobserved that an important point is the low temperature at which the original layer of loose material may be transformed into the final panel, strip or other ultimate self-. maintaining shape,
recited herein it may be.
as this permits the wear iron matrlx of the prior art structure hereinbefore referred to onto any ordinar supporting structure, and even if possi le, it
would be a costly and difficult operation, while with my invention nearl any char-- acter of supporting material wi l withstand the temperature of vulcanization .without injury, and the rubber and sulfur can be forced into small interstices like the pores of a supporting base, into which molten iron might not penetrate because of the chilling action of the extensive surfaces then ex- 60 posed. p
' In the application to stair treads, my invention because of-its flexibility and'ease of manipulation during the formative process will allow the hard material to be applied to the nosing or outer edge of the tread, which in the case ofa down stairway always wears away first and so becomes slippery and dangerous. such a structure is shown in Fig. 3.
Having described my invention, I claim: As a new article of manufacture a wear resisting panel comprising a self supporting backing and a body of rubber vulcanized thereto, said rubber mineral masses embedded therein and on its exposed surface,
the proportion of mineral matter being greatest at and near the exposed surface and the proportion of ru her being greater near the supporting backing.
- GEORGE P. BARTHOLOMEW.
Witnessesi WM. H. Sam,
ELEANOR C. SEAMAN.
An example of having granulated
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US270984A US1330973A (en) | 1919-01-13 | 1919-01-13 | Wear-resisting structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US270984A US1330973A (en) | 1919-01-13 | 1919-01-13 | Wear-resisting structure |
Publications (1)
Publication Number | Publication Date |
---|---|
US1330973A true US1330973A (en) | 1920-02-17 |
Family
ID=23033694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US270984A Expired - Lifetime US1330973A (en) | 1919-01-13 | 1919-01-13 | Wear-resisting structure |
Country Status (1)
Country | Link |
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US (1) | US1330973A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3241999A (en) * | 1963-03-21 | 1966-03-22 | Riegel Textile Corp | Slip resistant fabric |
US3272252A (en) * | 1965-02-23 | 1966-09-13 | Coors Porcelain Co | Snow tire and insert therefor |
EP0197309A2 (en) * | 1985-04-01 | 1986-10-15 | Hüls Troisdorf Aktiengesellschaft | Profiled listel for staircase edges and method for its production |
-
1919
- 1919-01-13 US US270984A patent/US1330973A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3241999A (en) * | 1963-03-21 | 1966-03-22 | Riegel Textile Corp | Slip resistant fabric |
US3272252A (en) * | 1965-02-23 | 1966-09-13 | Coors Porcelain Co | Snow tire and insert therefor |
EP0197309A2 (en) * | 1985-04-01 | 1986-10-15 | Hüls Troisdorf Aktiengesellschaft | Profiled listel for staircase edges and method for its production |
EP0197309A3 (en) * | 1985-04-01 | 1987-08-19 | Hüls Troisdorf Aktiengesellschaft | Profiled listel for staircase edges and method for its production |
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