US629790A

US629790A - Door for ships' bulkheads.

Info

Publication number: US629790A
Application number: US69373298A
Authority: US
Inventors: William Houghton
Original assignee: Individual
Current assignee: Individual
Priority date: 1898-10-17
Filing date: 1898-10-17
Publication date: 1899-08-01
Anticipated expiration: 1916-08-01

Description

No. 629,790. Patented Aug. I, |899.

W. HOUGHTDN.

noon Fon sums' BULKHYEAD'S.

(Application Med Oct. 17. 1898.)

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Patented Aug. I, |899.

W H 0 U E H T 0 N (Appliation filed Get. 1'?, 1898;)

`IJJR FUR SHIPS BULKHEADS.

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Wl TN ESSE S s UNITED Srrnins;l OFFICE'.

WILLIAM I-IOUGHTOLVOF NEV YRIQ N. Y.

oooR FOR sl-uPs euhm-HEADSi SPECIFICATION-forming part of Letters Patent No.6293790, dated August 1, 18.99.' Application filed Octoberl', 1898. Serial No. 693,732. (llo model.) v 'v i To @Zitzak/0m, t may concern: l

Be it known that I, WILLIAM HoUeHToN, a citizen ot the United States, residing in the city of New York, borough of Brooklyn, State of New York, have invented certain new and useful Improvements in Doors for Ships Bulkheads, Air-Locks, the., of which the following is a specification. Y

The object of my invention is to provide a door that shall be water-tight or air-tight, or substantially so, that can be readily opened and closed, and that shall require but little space for its installation and operation. Vith these objects in view I providev a door frame or casing that is circular in crosssection and tapers from the top downwardly. In it I arrange a correspondingly-tapered circular door, which is a hollow chamber with a proper opening or openings to coincide o r register with the openings in the door-frame. This door turns upon a vertical axis coincident with the axis of the casing. Normally when the door is closed it seats itself in its tapered socket or casing, forming a substantially water or air tight joint. Then the door is partially rotated, it is caused to rise, thushpassing substantially out of frictional contact with its casing and may therefore be readily turned to the desired position. In the case 'of doors for ships bulkheads I also provide an arrangement by which the door, if open, will be automatically closed by the risemof water in either of the, compartments which it connects.

Aside from these generalv features my invention embodies certain details of organization, all as hereinafter described. t

The interior face of the casing and the eX- terior face of the door may be machine-iinished-f-that is to say, theylnay be turned or ground to produce the most efficient and accurate lit.

In the accompanying drawings, Figure lis a vertical section; Fig. 2, a transverse section therethrough on the line 2 d2; Fig. 3, a similar section on the line3 3; Fig. 4, a similar section on the line 4 4:; Fig. 5, an elevation at' right angles to Fig. 1, with the lower part broken away to show the rolls upon the bottom of the revolving door and the inclined tracks on the floor of the casing, upon which the rolls travel; Fig. 6, a plan view of Fig. 1; and Fig. '7, a transverse section therethrough on the line 7 7. Figs. 8 to 14, inclusive, show t a modified form of my invention, Fig. 8 being a vertical section, Fig. 9 atransverse section therethrough on the line 9 9, Fig. 10 a similar section on the line 1010, Fig. 1,1 a simi lar section on the line 1111, Fig. l2 a side elevation at 'right anglesv to Fig- 8 with the lower portionbrokeu away, Fig.,13 a plan view thereof, and Fig. 14 a

transverse section therethroughontheline

14,14.

I will first describe the organization shown in Figs. 1 to 7.

d In Fig. 1, X represents a portion of apartition or ships bulkhead. An opening is formed therein to which the cylindrical` casing or frame is applied. This casing is shown as composed of two parts A, semicircular in cross-section and provided with flanges for attachment 'to the bulkhead. At the'bottom their circumference is continuous, and at a suitable distance above the bottomthey are f formed with openings which constitute the passage-way. Above these two parts are two solid semicircular parts B, whose circumference andtops are continuous or unbroken,and which together form a closed cap for the doorframe and are provided With flanges for attachment to the bulkhead and to theparts A A. This casing, throughout the `area occuv pied by the circular door andlsomewhat above it, is tapered interiorly from/the top down- Wardlyl The door C is a hollow cylindrical tapering body-formed with a closed bottoinC and opposite openings in its sides. closelywithin the casing and turnsy upon a pivot Cthat is stepped in a socket in the iioor of -the frame. At the top itdsformed l,with radial arms uniting inthe hub G3 at the center, andin this hub is keyed a short shaft It tits D,thathas its upper bearing inthe top of the capof the casing formed by the parts B B. 0n the under side of the bottom of the circular door are lugs in whichare journaled the shafts of conical rolls E, which run upon the circular tracks on the door of the casing. This track or circular pathzF- is divided into four equal parts, each of which is inclined radially to coincide with the taper of the rolls. The track is also inclined circumferentially and has two opposite low parts f f, connected at each side by a rising incline f', extending through approximately a quarter of the cir- .ICO

cle to the highest point f2, from which itl declines again to the lowest point f-that is to say, on each side ofa diametric line passing through the low portions f of the track the inclination of the track is upward to its highest point and then downward again, the highest points of the track being in a line at right angles to the diametric line passing through the low points f. When the rolls are upon the lowest parts of these inclines, the circular door is closed and in its lowest position, as seen in sectional view Fig. 3, and is closely seated in the casing. When the door has revolved through a quarter of a revolution to bring the openings coincident with the openings in the casing, the rollers travel up the inclines and lift the door from its seat in the casi-ng and permit it to turn readily. In this position the friction and resistance to motion through the shafts and gearings is sufficient to holdA the door at rest in the open position with the rolls upon the highest points of the track. It is. obvious that with su ch an organization I obtain a tightly-fitting door of great strength, whose operation will not be materiallyimpeded or interfered with by pressure upon its sides, or either of them, and that may be rotated readily with a small expenditure of power.

The details thus far and hereinafter described mayof course be varied in many ways obvious to those skilled in the art without departing from the principles ofconstruction and operation hereinbefore indicated.

The means which I have shown for controlling the operation of the door are as follows: The winch G, located at a suitable point upon one face of the bulkhead, has a drivingshaft extending through the bulkhead and equipped on each end with an operatingcrank. Through the medium of suitable gears a vertical shaft 1I may be rotated, and

' a beveled gear Il thereon meshes witha cordoor may therefore be rotated to open or close it inthe manner already indicated. The beveled gears Il 113 slide upon their shafts and maybe controlled as follows: A pivoted lever 7L is connected with the beveled gear H' at one end, and from its opposite end extends downwardly a rod h', which, at its lower en d, is coupled to a lever h2, having one end pivoted in a stud or bracket on the deck below the floorlevel and carrying at its opposite free end a oat 7L. The other beveled gear H3 is connected to one end of a pivoted lever h4, from the opposite end of which extends downwardlya rod h5, which, at its lower end, is pinned to a pivoted lever 77,, similar to the lever h2, and having at its free end a suitable float. As seen 'is located.

plainly in Fig. 5, one float is located on each side of the bulkhead, while both gears H H3 are located upon the same side of the bulkhead. The lever h4 therefore has its free end, to which the rod-h5 is connected, on the opposite side of the bulkhead, its axis passing through a suitable bearing in the bulkhead. Normally when there is no water in the space in which the floats are located thel Weight of the parts is sufficient to hold the beveled gears H H3 up in operative connection with the gears with which they engage. In the event, however, of water rising in the compartment on either side of the bulkhead the float in that compartment rises, and the end thrust of the vertical rod connected with the lever 7i or h4 causes either the gear H or I-l3 to pass out of engagement with its corresponding gear. Should this condition arise, the resistance opposed to the rotation ofthe door is removed, and it then automatically turns, the rolls E running down the inclines of the track to the lowest points, when the door is closed and seated in its socket.

In Figs. 8 to '14, inclusive, i have shown a door constructed according to my inven-tion, which always closes the opening in which it Such adoor is suitable as an airlock aboard ship where forced draft is used and also where it is desired that the division al ships bulkheads between large compartments shall be maintained intact. The door casing or frame is the same as that already described, as is also the cylindrical door, except that it has but one opening leading into it, which in one position of the door communicates with one compartment and in the other position with the other compartment. The organization otherwise is or-may be the saine as that already described except in the following respects: The pinions H" IIS are f ast in their shafts, and the counter shaft pinion, with which II gears, slides on a key or feather connection. Its sleeve is connected with a lever or arm M, projecting from a rock-shaft m, turning in bearings in the bulkhead and havat each end, in either side of the bulkhead, an arm or lever M. The shaft m has a taper screw on having a correspondingly-shaped seat in the bearing, so that when the gear on the counter-shaft is thrown into mesh with Il by the manipulation of either lever M' it will so be held by the frictional binding of the rock-shaft in its socket. If these two pinions be out of gear, a person in a compartment on either side of the bulkhead maythrow them into gear and by means of the winch' G revolve the door until its opening is turned toward that compartment. He may then disengage the gears and enter the cylindrical door, within which is mounted a winch N, having a bevel-gear N', adapted to mesh with a sliding bevel-pinion N2 on a vertical shaft O when the latter pinion is moved upward by rod n by means of-a treadle pivoted on the iioorv of the door. The shaft O has at its upper end a spur-wheel O', gearing with an in- IIO ternally-geared ring O2, mounted within the cap B B of the door-casing. By this means the person within the door may revolve it until the opening is turned toward the other compartment. This requires a half-revolution of the door, and hence the rolls E E occupy the lowest portions of the track when the door is in either position.

I claim as my invention 1. The combination of a tapering cylindrical door-casing having openings in its opposite sides, a correspondingly-tapered cylindrical door seated and turning within the casing and having an opening in its walls, and mechanism actuated from either side of the casing for turning the door andraising it from its seat in the casing to bring its opening opposite either opening in the casing.

2. The combination of a bulkhead, atapered cylindrical door-casing forming a part thereof and having openings communicating with the respective compartments separated by the bulkhead, a correspondinglywapered hollow cylindrical door seated and adapted to turn in the casing and having one or more openings in its Walls corresponding with the openings in the casing, mechanism for turning the door, and means located on each side of the bulkhead for at will operating said mechanism.

3. The combination of a tapering cylindrical door-casing having openings in its opposite sides, a correspondingly-tapered cylin- Vdrical door seated and turning Within the casing and having an opening in its walls, radially-arranged rolls on the bottom of the door, the inclined circular track upon which the rolls run, and mechanism actuated from either side of the door for rotating it.

4. The combination of a tapering cylindricaldoor-casing having openings in its opposite sides, a correspondingly-tapered cylindrical door seated and turning in the casing and having two openings in its Walls, radiallyarranged rolls on the bottom of the door, the inclined circular track upon which the rolls run, and mechanism actuated from either side of the casing for rotating the door to bring either its openings or its solid walls opposite the openings in the casing.

5. The combination of a tapering cylindrical door-casing having openings in its op; posite sides, a correspondingly-tapered cylindrical door seated and turning within the casing and having two openings in its walls, radially-arranged rolls on the bottom of the door, the inclined circular track upon which the rolls run, and which has two low portions and two intermediate high portions connected by inclines, mechanism for rotating the door to bring its openings opposite the openings in the casing and its rolls upon the high points of the track and there holding them, and float devices for releasing the door and permitting it to descend and rotate by gravity having two openings in its Walls, mechanism for rotating and raising the door to bring its openings opposite the openings .in the casing, and float devices for releasing the door and permitting it to descend and rotate by gravity to bring its solid walls opposite the openings in the casing.' t

In testimony whereof I have hereunto subscribed rny name.

' WILLIAM HOUGHTON. Witnesses:

EDWARD C. DAVIDSON, FRED G. RING.