US155459A - Improvement in self-closing hatchways - Google Patents
Improvement in self-closing hatchways Download PDFInfo
- Publication number
- US155459A US155459A US155459DA US155459A US 155459 A US155459 A US 155459A US 155459D A US155459D A US 155459DA US 155459 A US155459 A US 155459A
- Authority
- US
- United States
- Prior art keywords
- self
- improvement
- springs
- closing
- hatchway
- 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
- 235000002912 Salvia officinalis Nutrition 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 235000002020 sage Nutrition 0.000 description 2
- 239000001296 salvia officinalis l. Substances 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
- B66B13/02—Door or gate operation
- B66B13/06—Door or gate operation of sliding doors
Definitions
- the novelty of my invention relates to a new and useful method of locking and holding together the sections of a selfclosing hatchway; and consists in the employment of automatic springs and catch-plates, the construction and operation of which will hereinafter be more fully shown and described.
- S S represent the metallic springs, which Vare embedded in the ends of one section of the hatchway
- P P represent the catch plates, which are embedded in the ends of the section of the hatch way opposite that to which the springs are secured.
- These springs S S are automatic in their action, and are controlled and operated by the inner vertical plane of the moving frame-work of the elevator or car shown in my original patent, dated November 4C, l83, and numbered 144,350.
- Thevcar or elevator in its ascent and descent, presses against the projecting knobs, (shown in dotted lines at x w,) and thereby releases the springs from the catch-plates P P', and allows the two sections of the hatchway to open and close with the upward or downward movement of the car.
Description
UNITED STATES PATENT OFFICE GAORG MLLER, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF HIS RIGHT TO MARY E. MILDRUM, OF SAME PLACE.
IMPROVEMENT lN SELF-CLOSING HATCHWAVS.
Specification forming part of Letters Patent No. 155,459, dated September 29, 1874; application filed December 29, 1873.
declare that the following is a full, clear, and
exact description thereof, sufficient to enable those skilled in the art to which my invention appertains to make and use the same, reference being had to the accompanying drawing and to the letters of reference marked thereon,
Y which form a part of this specification, and in which the igure is a top-plan View of a hatch way, showing my invention secured thereto.
The novelty of my invention relates to a new and useful method of locking and holding together the sections of a selfclosing hatchway; and consists in the employment of automatic springs and catch-plates, the construction and operation of which will hereinafter be more fully shown and described.-
Referring to the drawing, S S represent the metallic springs, which Vare embedded in the ends of one section of the hatchway, and P P represent the catch plates, which are embedded in the ends of the section of the hatch way opposite that to which the springs are secured. These springs S S are automatic in their action, and are controlled and operated by the inner vertical plane of the moving frame-work of the elevator or car shown in my original patent, dated November 4C, l83, and numbered 144,350. Thevcar or elevator, in its ascent and descent, presses against the projecting knobs, (shown in dotted lines at x w,) and thereby releases the springs from the catch-plates P P', and allows the two sections of the hatchway to open and close with the upward or downward movement of the car. j sage of the car or elevatQLthrough/the hatchway the two sections of the same are brought together, and the springs S S, being relieved from the action of the car, fall back into the catch-plates P P', thereby locking or securing v the two sections of the hatchway together.
Having thus described my invention, what I claim as new, and desire to secure by Let-v ters Patent, is
The combined arrangement of the straight flat spring-catches S S with knobs .fr x and catch-plates P P', let into the edges of the horizontal hatches D, all constructed and operating in the manner and for the purpose set forth.
In testimony whereof I hereunto subscribe my name in the presence of two witnesses.
GAORG MULLER. Witnesses:
J AMEs P. MGLEAN, J EssE FEYE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US155459A true US155459A (en) | 1874-09-29 |
Family
ID=2224869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US155459D Expired - Lifetime US155459A (en) | Improvement in self-closing hatchways |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US155459A (en) |
-
0
- US US155459D patent/US155459A/en not_active Expired - Lifetime
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