US111628A - Improvement in safety devices for hatchways - Google Patents
Improvement in safety devices for hatchways Download PDFInfo
- Publication number
- US111628A US111628A US111628DA US111628A US 111628 A US111628 A US 111628A US 111628D A US111628D A US 111628DA US 111628 A US111628 A US 111628A
- Authority
- US
- United States
- Prior art keywords
- hatchways
- improvement
- safety devices
- platform
- nets
- 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
- 239000002965 rope Substances 0.000 description 6
- 210000003414 Extremities Anatomy 0.000 description 2
- 240000004282 Grewia occidentalis Species 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
- B66B13/245—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers mechanical
Definitions
- My invention relates to a device for application to hatchways, whereby the frequent loss of life and limb to persons falling down such openings is avoided; and my invention consists in the provision of a series of nets suspended in the hatchways and adapted to rise and fall with the elevation or depressonof the platform.
- Figure l is a perspective view of a series vof hatehways provided'with my improvement, a portion of'the nets being broken away.
- Fig. 2 is a vertical section of the same.
- Fig. 3 is a plan showing a modifieution of my invention.
- a Al A represent a' series of hatchways; B TB', the customary guide-posts; C, timbers atbr near the top of the building; D, the platform, capable of elevation by the ordinary hoisting-rope, E, or any other means, and havinga bridge, X, and cross-piece W, to lift the upper nettings, hereinafter described.
- 'Bhe bridge X also serves for Vattachment of the hoisting rope or chain where one is used.
- eachl frame Suspended by cords or chains F F F F" fromthe timbers C are a series of light horizontal frames, 1 2 3, corresponding in shape and alittle less in size than the openings of Athe hatchways. Suspended in like manner from the under side of the platform are similar frames, 4 5 6. The central portion of eachl frame has a net-work filling, L, of rope or cord-v age.
Description
UNITED STATES `PATENT OEEICE.
ALEXANDER FRIES, OF CINCINNATI, OHIO.
IMPROVEMENT lN SAFETY DEVICES AFo R HATCHWAYS.
Specification forming part of Letters Patent N o. 111.628, dated February 7, 1871.
tachment for Hatchways, of which the followingr is a specification.
My invention relates to a device for application to hatchways, whereby the frequent loss of life and limb to persons falling down such openings is avoided; and my invention consists in the provision of a series of nets suspended in the hatchways and adapted to rise and fall with the elevation or depressonof the platform. i
In the drawings, Figure l is a perspective view of a series vof hatehways provided'with my improvement, a portion of'the nets being broken away. Fig. 2 is a vertical section of the same. Fig. 3 is a plan showing a modifieution of my invention.
A Al A represent a' series of hatchways; B TB', the customary guide-posts; C, timbers atbr near the top of the building; D, the platform, capable of elevation by the ordinary hoisting-rope, E, or any other means, and havinga bridge, X, and cross-piece W, to lift the upper nettings, hereinafter described. 'Bhe bridge X also serves for Vattachment of the hoisting rope or chain where one is used.
Suspended by cords or chains F F F F" fromthe timbers C are a series of light horizontal frames, 1 2 3, corresponding in shape and alittle less in size than the openings of Athe hatchways. Suspended in like manner from the under side of the platform are similar frames, 4 5 6. The central portion of eachl frame has a net-work filling, L, of rope or cord-v age.
ln the modification shown in Fig'. 3 the stanchions B B' are omitted and the frame G is confined to its proper path by rollers H, which traverse the posts I, located ut the four corners of said frame.
Operation: As the platform ascends the nets are one by one elevated by the bridge and cross-piece X W, and the lower netsa: e at the same time consecutively elevated, so as always to oppose one or more guards at every hutchway, capable of breaking the fall ofany person who may be preeipitateddown the opening.
I claim as new and of my invention- 1. The provision of one o r more nets to be suspended Within hatchways, substantially as and for the purpose stated.
Lp-v2. The application to the hatchways of a hoisting apparatus of two series of nets, L, of which the upperones are suspended from some point or points above the platform and the lower ones from the platform itself, substantially as set forth. Y
In testimony of which invention I hereunto set my hand.
ALEXANDER FRIES.
Witnesses:
GEO. H. KNIGHT,
JAMES H. LAYMAN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US111628A true US111628A (en) | 1871-02-07 |
Family
ID=2181097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US111628D Expired - Lifetime US111628A (en) | Improvement in safety devices for hatchways |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US111628A (en) |
-
0
- US US111628D patent/US111628A/en not_active Expired - Lifetime
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