US2214247A - Antiskid tread for running boards and the like - Google Patents
Antiskid tread for running boards and the like Download PDFInfo
- Publication number
- US2214247A US2214247A US216099A US21609938A US2214247A US 2214247 A US2214247 A US 2214247A US 216099 A US216099 A US 216099A US 21609938 A US21609938 A US 21609938A US 2214247 A US2214247 A US 2214247A
- Authority
- US
- United States
- Prior art keywords
- antiskid
- running boards
- tread
- antiskid tread
- bonds
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R3/00—Arrangements of steps or ladders facilitating access to or on the vehicle, e.g. running-boards
- B60R3/002—Running boards
Definitions
- the invention relates to antiskid tread members adapted for various uses, such as railway car running boards, platforms, etc. It is the object of the invention to obtain a construction which can be manufactured at low cost and which will effectively prevent slipping in transverse directions. To this end the invention consists in the construction as hereinafter set forth.
- Figure 1 is a plan view of a portion of my improved antiskid tread
- Figure 2 is a longitudinal section therethrough
- Figure 3 is a cross section.
- treads have been formed from ex- 15 panded sheet metal which forms an open meshwork permitting drainage therethrough of rain and snow.
- Such constructions will prevent slippage in one direction, viz.: in the direction in which the sheet has been expanded, but in a transo verse direction the surface is quite slippery. This is for the reason that the points of contact are formed by the bond portions of the meshwork which present sharp edges extending transverse to the direction of expansion.
- these edges 25 will press into thesole of a shoe to hold it from sliding transversely thereof, but in a direction parallel to these edges there is very little holding effect.
- A is the expanded metal sheet having bond portions B which due to expansion are turned into an obliquely inclined position. These bonds form the highest points in the meshwork and present sharp edges C extending longitudinally of the bond or transverse to the direction of expansion. D are notches formed centrally of the upper edge portions of the bonds which form on opposite sides thereof the spaced points E and E. These, as previously described, will bite into the sole of a shoe and prevent slippage, longitudinally as Well as transversely.
- the construction as described can be easily manufactured and in use will form an exceedingly effective antiskid tread surface.
- a tread comprising expanded sheet metal forming an open meshwork with the bonds thereof obliquely inclined to present on their upper surfaces projecting sharp line edges extending transverse to the direction of expansion and raised above the level of the other portions, the line edges of said bonds being notched to render the same antiskid in transverse directions.
- a tread comprising expanded sheet metal forming an open meshwork with the cross section of the strands thereof obliquely turned to the plane of expansion to present substantially parallel sharp edges projecting upwardly above said plane and forming a transversely antiskid bearing, said sharp edges being serrated to render the same also antiskid longitudinally thereof.
Description
Sept. 10, 1940. D. w. HAwKswoR-m 2,214,247
ANTISKID TREAD FOR RUNNING BOARDS AND THE LIKE Filed June 27, 1938 *-%PE:HH/- J 2' -A E DC- INVEI'I TOR DAVID W.HAWK$WOR TH WW A few/2 4 ATTORNEYS Patented Sept. 10, 1940 UNITED STATES PATENT OFFICE ANTISKID TREAD FOR RUNNING BOARDS AND .THE LIKE Application June 27, 1938, Serial No. 216,099
2 Claims.
The invention relates to antiskid tread members adapted for various uses, such as railway car running boards, platforms, etc. It is the object of the invention to obtain a construction which can be manufactured at low cost and which will effectively prevent slipping in transverse directions. To this end the invention consists in the construction as hereinafter set forth.
In the drawing:
10 Figure 1 is a plan view of a portion of my improved antiskid tread;
Figure 2 is a longitudinal section therethrough;
Figure 3 is a cross section.
Heretofore, treads have been formed from ex- 15 panded sheet metal which forms an open meshwork permitting drainage therethrough of rain and snow. Such constructions will prevent slippage in one direction, viz.: in the direction in which the sheet has been expanded, but in a transo verse direction the surface is quite slippery. This is for the reason that the points of contact are formed by the bond portions of the meshwork which present sharp edges extending transverse to the direction of expansion. Thus, these edges 25 will press into thesole of a shoe to hold it from sliding transversely thereof, but in a direction parallel to these edges there is very little holding effect.
With my improved construction I have over- 0 come the objection just described, by fashioning these bearing portions so that they Will resist sliding movement in either of transverse directions. Preferably, this is accomplished by centrally notchlng the upper faces of the bonds which being the portions of greatest depth will not be weakened by such notching. On the other hand, this notchingwill produce spaced points which bite into the sole of the shoe with the result that it is held from movement longitudinally of the bonds as well as transversely thereof.
In detail, A is the expanded metal sheet having bond portions B which due to expansion are turned into an obliquely inclined position. These bonds form the highest points in the meshwork and present sharp edges C extending longitudinally of the bond or transverse to the direction of expansion. D are notches formed centrally of the upper edge portions of the bonds which form on opposite sides thereof the spaced points E and E. These, as previously described, will bite into the sole of a shoe and prevent slippage, longitudinally as Well as transversely.
The construction as described can be easily manufactured and in use will form an exceedingly effective antiskid tread surface.
What I claim as my invention is: I
1. A tread comprising expanded sheet metal forming an open meshwork with the bonds thereof obliquely inclined to present on their upper surfaces projecting sharp line edges extending transverse to the direction of expansion and raised above the level of the other portions, the line edges of said bonds being notched to render the same antiskid in transverse directions.
2. A tread comprising expanded sheet metal forming an open meshwork with the cross section of the strands thereof obliquely turned to the plane of expansion to present substantially parallel sharp edges projecting upwardly above said plane and forming a transversely antiskid bearing, said sharp edges being serrated to render the same also antiskid longitudinally thereof.
DAVID W. HAWKSWOR'I'H.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US216099A US2214247A (en) | 1938-06-27 | 1938-06-27 | Antiskid tread for running boards and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US216099A US2214247A (en) | 1938-06-27 | 1938-06-27 | Antiskid tread for running boards and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
US2214247A true US2214247A (en) | 1940-09-10 |
Family
ID=22805683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US216099A Expired - Lifetime US2214247A (en) | 1938-06-27 | 1938-06-27 | Antiskid tread for running boards and the like |
Country Status (1)
Country | Link |
---|---|
US (1) | US2214247A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2609781A (en) * | 1947-03-31 | 1952-09-09 | Smith Corp A O | Method of making expanded metal gratings |
US6696169B1 (en) * | 1999-03-05 | 2004-02-24 | Roettger Wilhelm | Expanded metal mesh and tool for producing the same |
US20080135318A1 (en) * | 2006-04-01 | 2008-06-12 | Mcdonough Terry P | Snow eliminator |
-
1938
- 1938-06-27 US US216099A patent/US2214247A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2609781A (en) * | 1947-03-31 | 1952-09-09 | Smith Corp A O | Method of making expanded metal gratings |
US6696169B1 (en) * | 1999-03-05 | 2004-02-24 | Roettger Wilhelm | Expanded metal mesh and tool for producing the same |
US20080135318A1 (en) * | 2006-04-01 | 2008-06-12 | Mcdonough Terry P | Snow eliminator |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2214247A (en) | Antiskid tread for running boards and the like | |
US1516051A (en) | Tie plate | |
US1222953A (en) | Snow-guard. | |
US1821734A (en) | Toe board | |
US3025002A (en) | Skid shoe for automobiles | |
US1570791A (en) | Ice creeper | |
US1837393A (en) | Expanded metal lath | |
US1180953A (en) | Area-grating. | |
DE836451C (en) | Ski edge | |
US1306339A (en) | Metal tread | |
US2369128A (en) | Reticulated metal structure | |
US789894A (en) | Chafing-plate for wagons. | |
US1530752A (en) | Nonslip insert for flat surfaces | |
US1573779A (en) | Antislipping means | |
US1622697A (en) | Floor clip | |
US1524728A (en) | Cement-work former | |
US1526233A (en) | Foot cleaner for automobiles | |
US2173969A (en) | Sandal | |
US1565195A (en) | Coffin-retaining device for hearses | |
US1390190A (en) | Tie | |
US1068739A (en) | Paving-block. | |
US1489374A (en) | Railroad tie and rail fastener | |
US1487602A (en) | Shoe-lace tip | |
US1859898A (en) | Fastening device | |
US1712350A (en) | Shoe shank |