US202373A - Improvement in man-hole plates for sewer-openings - Google Patents
Improvement in man-hole plates for sewer-openings Download PDFInfo
- Publication number
- US202373A US202373A US202373DA US202373A US 202373 A US202373 A US 202373A US 202373D A US202373D A US 202373DA US 202373 A US202373 A US 202373A
- Authority
- US
- United States
- Prior art keywords
- man
- sewer
- openings
- improvement
- hole plates
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 28
- 229910052742 iron Inorganic materials 0.000 description 14
- 239000002023 wood Substances 0.000 description 4
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
Definitions
- the object of my invention is to provide a cover for an opening in a sewer. It is an iron man-hole plate setting in an iron case around the opening, and the man-hole plate is filled with wooden pavement, so that teams may travel over the, same.
- Figure l is the iron case which is put around the opening in the sewer;
- Fig. 2 the man-hole plate, in which the wood pavement is placed, with a lever and fulcrum to raise the same out of the case, and
- Fig. 3 an iron manhole plate with openings in the bottom.
- A is the iron man-hole plate, in which the wood paving is held;
- B iron partitions to keep the paving apart, and to hold it firmly in position, and also to strengthen the man-hole plate;
- 0, the iron bottom of the man-hole plate;
- D a hook in theman-hole plate, in which it may be lifted out of the case whenever it may be necessary to remove the same;
- E a lever with which to remove the man-hole plate;
- F the fulcrum of the lever, which is removable and used when wanted;
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Floor Finish (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Description
I n. w. PURTELL. Man-hole Plate for Sewer-Opening No. 202,373. Patented April16, 1878.
UNITED STATES PATENT OFFICE.
DAVID W. PURTELL, OF MILWAUKEE, WISOON SIN.
IMPROVEMENT IN MAN-HOLE PLATES FOR SEWER-OPENINGS.
Specification forming part of Letters Patent No. 202,373, dated April 16, 1878; application filed August 27, 1877.
I To all whom it may concern.-
Be it known that I, DAVID W. PURTELL, of Milwaukee, in the county of Milwaukee, in the State of Wisconsin, have invented certain Improvements in Man-Hole Plates for Sewer- Openings, of which the following is a specification:
The object of my invention is to provide a cover for an opening in a sewer. It is an iron man-hole plate setting in an iron case around the opening, and the man-hole plate is filled with wooden pavement, so that teams may travel over the, same.
In the drawings, forming part of this specification, Figure l is the iron case which is put around the opening in the sewer; Fig. 2, the man-hole plate, in which the wood pavement is placed, with a lever and fulcrum to raise the same out of the case, and Fig. 3 an iron manhole plate with openings in the bottom.
In the drawing, A is the iron man-hole plate, in which the wood paving is held; B, iron partitions to keep the paving apart, and to hold it firmly in position, and also to strengthen the man-hole plate; 0, the iron bottom of the man-hole plate; D, a hook in theman-hole plate, in which it may be lifted out of the case whenever it may be necessary to remove the same; E, a lever with which to remove the man-hole plate; F, the fulcrum of the lever, which is removable and used when wanted;
G, a hook on the lever, to hook into the hook.
DAVID W. PURTELL. Witnesses:
J. B. SMITH, CHAS. A. SMITH.
Publications (1)
Publication Number | Publication Date |
---|---|
US202373A true US202373A (en) | 1878-04-16 |
Family
ID=2271778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US202373D Expired - Lifetime US202373A (en) | Improvement in man-hole plates for sewer-openings |
Country Status (1)
Country | Link |
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US (1) | US202373A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5572846A (en) * | 1995-01-31 | 1996-11-12 | Sosa Architectural Metal Corporation | Poster resistant pole |
US6640495B1 (en) | 1999-01-21 | 2003-11-04 | Syracuse Castings Sales Corp. | Safety hatch for preventing fall-through and unauthorized entry |
-
0
- US US202373D patent/US202373A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5572846A (en) * | 1995-01-31 | 1996-11-12 | Sosa Architectural Metal Corporation | Poster resistant pole |
US6640495B1 (en) | 1999-01-21 | 2003-11-04 | Syracuse Castings Sales Corp. | Safety hatch for preventing fall-through and unauthorized entry |
US6718692B2 (en) | 1999-01-21 | 2004-04-13 | Syracuse Castings Sale Corp. | Safety hatch for preventing fall-through and unauthorized entry |
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