US1124645A

US1124645A - Steering and propelling mechanism for menhaden-fishing boats.

Info

Publication number: US1124645A
Application number: US81678114A
Authority: US
Inventors: Charles S Overton
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-02-05
Filing date: 1914-02-05
Publication date: 1915-01-12
Anticipated expiration: 1932-01-12

Description

O. S. OVERTON. STEERING AND PROPBLLING MEGHANISM FOR MENHADEN FISHING BOATS.

APPLIoATloN FILED 1113.5, 1914. f

1,124,645. i Patented .12.11.12, 1915.

CHARLES S. OVERTON, 0F SOLOMONS, MARYLAND.

STEERING AND PROPELLING MECHANISM FOR MENHADEN-FISHING BOATS.

Specification of Letters Patent.

ratenteaaamia, 1915.

Application vfiled February 5, 1914. Serial N o. 816,781.

To allie/10m it may concern.' l

Be it known that I, CHARLES S. OVERTON, a citizen of the United States, residing at Solomon's, in the county of Calvert and State of Maryland, have invented certain new and useful Improvementsy in Steering and Propelling Mechanism for Menhaden- Fishing Boats; and I do declare the followingto be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to malte and use the' same.

This invention relates to improvements in propelling and steering mechanism for boats and is especially adapted for use in connection with menhaden fishing boats..

The object of the invention is to provide a. boat of this class with simple and eilicient means for withdrawing and projecting the propelling and steering mechanism to either house it entirely within the boat when not in use or to project it below the bottom thereof when desired.

Another object is to provide simple means for quickly changing the position of the steering and propelling mechanism whereby the course of the boat may be quickly and easily7 changed, which is especially necessaryy in boats used in work of this character.

Menhaden fishing is accomplished by means of large seine, the ends of which are carried by two small boats. This seine is held up against the bottoms of the boats while being drawn, thus necessitating that the bottoms of the boatsbe perfectly smooth to avoid tearing the nets. The menhaden fish run in schools and two boats are used to encircle them, half of the net being 1n each boa-t. These fish also frequently vary the direction oftheir course and necessitate the quick turning of the boats to complete theV catch.

With these and other objects in View, the invention consists of certain novel features of construction, combination and arrangement of parts as will be more fully descrlbed and claimed.

In the accompanying drawings z-Flgure' 1 represents a side elevation partly 1n see- -tion of the bow 'of a small fishing boat equipped with this invention; Fig. 2 is a vertical longitudinal section through a p ortion of the boatv and the casing' 1n which the propelling and steering mechanism isy mounted, said mechanism being shown in sideelevation andwith the propeller pro jected below the bottom of the boat ready for use; Fig. 3 is a similar view with the propeller in Withdrawn position to dispose it out of the way of the nets; Fig. 4 is a transverse section of the well or casing taken on the line 4 4 of Fig. 2; Fig. 5 is an enlarged detail sectional view of the propeller showing it projected into operative position; and Fig. 6 is an enlarged sectional detail. y

In the embodiment illustrated, this improved mechanism is shown mounted in the bow of a small boat 1, the propeller being turned in position for backing the boat. In this boat 1 a casing or well 2 is shown in which the propelling and steering mechanism is housed and through one side wall of which a shaft 3 extends preferably near the' top thereof and is designed to be con nected at the will of the operator to a driving shaft 4 shown arranged in alinementl therewith by means of any suitable clutch 5 adapted to be operated by a lever 6, which lever may be locked in adjusted position to hold the clutch 5 either in operative or inoperative position by means of a dog 7 on said lever and a rack 8 on the casing as is shown clearly in Figs. 1 and 2.

Secured to the inner end of the shaft 3 is a beveled gear 9 adapted to mesh with a similar gear 10 mounted on a shaft 11 which extends longitudinally through the casing '2, being mounted in suitable bearings therein, and which is designed for driving the propeller 15 which is mounted on a shaft 16 rotatable in suitable bearings in a casing 17 swiveled on a plate 18. This shaft 16 hasa beveled gear 19 thereon which meshes with 'a similar gear 12 on-the lower end of the shaft 11 which extends into the casing 17.

A bushing 13 is mounted in an opening in the plate 18 to form a suitable bearing for a tubular screw 20 the lower end of which eXtendsbeyond the plate 18 and is secured to the casing 17 in which the propeller shaft 16 is mounted. This tubular screw ismounted atits other end in longiing shaft or rod 28 20 and is surrounded at its lower end where it passes from said screw into the casing 17 by a sleeve or bushing 1-1 to hold itagainst wabbling in said screw.

Mounted between the

plates

21 and 22 on the screw 2O is a gear wheel 23 having a collar 2J: extending upwardly through the plate 21 which has a set screw 25 mounted transversely therein for a purpose now to be described. A key 2G is mounted in a recess in said collar 21 and is adapted to be moved laterally toward and away from the screw 20 for connecting it to or disconnecting it from the Oear 23 as may be desired and for a purpose to be described. A gear 27 is also mounted between the

plates

21 and 22 and meshes with the gear 23 and is provided with an upwardly'extcnding operatwhich projects througlr the top of the casing 2 andis provided at its outer end with an operating wheel or handle 29 and is designed for a purpose to be described. Y

ll he plate 18 in which the tubular screw 2O is mounted and to the lower face of which the propeller casing 17 is secured, is made angular in conliguration to it the angular lower end of the casing 2 and the edges thereof are beveled to adapt 'them to -closely fit the beveled seat 30 at the bottom of said well or casing 2 whereby when the plate is moved downwardly to project the propeller below the bottom of the boat, said plate will snugly fit in the bottom of said casing, it being understood that the plate is secured to the screw 20 in any suitable manner to hold it in xed relation and adapt it to move therewith and to be firmly seated in the bottom of the casing against the pressure of the surrounding water.

In the operation of this mechanism, when the boat vis to be used for encircling the fish, during which operation its course will need to be changed many times, the propeller and steering mechanism having .first been projected below the bottom of the boat, the set screw 25 lis turned to engage thekey 26 with the tubular screw 20 so that when the steering wheel A29 is operated, the gear 27 connected with-the shaft 28 thereof will be turned and impart its motion to the gear 23.

This turning of the gear 23 will turn the hollow screw 20.with it and therebv shift the propeller casingl? in the desired direction to position the propeller for driving` the boat in the desired direction.' It will :thus be obvious that the direction of the propeller may be quickly changed simply Vby .turning the steering wheel 29 in the proper direction.

After the school of fish has been caught in the net and it is desired todrawthe net for Acompleting the catch, the screw 25 is turned to disengage the key 26 from the hollow screw 20 and to adapt the gear 23 which has cutting throughA a threaded engagement with the screw 2O to operate as a nut onthe turning vof the steering wheel 29 for 'elevating thel screw 20 to withdraw the propelling mechanism into the position shown in Fig. 3, the weight of the steering mechanism carried by said screw 20 serving to hold said screw and prevent its rotation with the gear 23. When in this position, the net may be drawn close against the bottom of the boat without danger of its becoming entangled. To lower the propelling mechanism, the steering wheel 29 is turned in the opposite direction fromithatabove described and the gear 23 operating as a nut, will lower the screw 20 and project the mechanism into the position shown in Figs. 2 and 5. The mechanism of this device being connected to the driving engine by a lfriction clutch gear which may be thrown in gradually, will render it immechanism may be revolved to turn the propeller at any desired angle from right ahead to right astern and thus: the boat may be caused to move in any desired direction without altering 'the engine, and when not in use, the steering and propelling mechanism may be withdrawn into the lower part of the boat as shown in Fig. 3. This well or casing 2 ispreferably located on the od' side of each keel to avoid the necessity of the keel'.

The casing 17 isy made fluid tight and is designed to vbe filled with oil for lubricating the gears and'other members mounted therehollow screw 20 and passes into the casing 17 through a duct 14.- formed in the'bushing 14. When desired the oil may be'drawn off from the casing 17 through an opening in. The oil is fed to this casing through the in one end closed by a plug-17. The end of the casing in which the propeller 15' is mounted is shown removable to afford laccess to the interior of the casing. All parts of this gearing are preferably constructed of brass, bronze or any other materialen which water has no effect.

'It is understood thatl hese `fishing boats are designed to be carried by fishing steamers which are equipped with davits andengines capable of hoisting the small boats and their seines above deck Where they are kept when not in use and this@ affords ampletime for examination4 of the gear both inside and out.

1. A boat having a well or-casing therein opening through the bottom thereof, steering and'propelling mechanism,l means for actuating said mechanism,.means for raising andlowering said mechanism into and out of said 'casing comprising a screw connected with said mechanism, a nut mounted in said casing and having threaded engagement with said screw, and means for turning said nut to raise or lower the screw.

2. A boat having a well or casing therein opening through the bottom thereof, steering and propelling mechanism, means for actuating said mechanism, means for raising and lowering said mechanism into and out of said casing comprising a screw connected with -said mechanism, vertically spaced plates secured in said casing through which said screw extends, a nut arranged between said plates and having threaded engagement with said screw and means for turning said nut.

3. A boat having a well or casing therein opening through the bottom thereof, vsteering and propelling mechanism, means for actuating said mechanism, coperating means arranged in said casing for raising and lowering said mechanism, means for fixing said raising and lowering means to said screw to adapt it to turn therewith when desired, and means for actuating said raising and lowering means.

4. A boat having a well or casing extending upwardly from the bottom thereof and having an opening in its bottom, a closure removably mounted in said opening, a casing mounted on the lower face of said closure, a propeller having a shaft mounted in said casing, a shaft extending through said well into the casing on the lower face of said closure, cooperating means carried by said propeller shaft and said wellacarried shaft for driving said propeller, means under the controlof the operator for driv-l ing said well-carried shaft, a tubular screw encircling said well-carried shaft and connected with the casing on the lower face of the closure, said tubular screw beingrevolubly mounted in said closure, and meansl for revolving said screw to turn the propeller casing at any desired angle.

` 5. A boat having a well or casing extending upwardly from the bottom thereof and having anopening in its bottom, a closure removably mounted in said opening, a casing mounted on the lower face of said closure, a propeller having Va shaft mounted in said casing, a shaft extending through said well into the casing on the lower face of said closure, coperating means carried by said propeller shaft and said well-carried shaft for driving said propeller, means under the control of the operator for driving said well-carriedy shaft, a tubular screw encircling saidA wheel carried shaft and' oonnected with the [casing on the lower face of A the closure, said'tubular screw being revo'- lubly mounted 1n said closure, means for re- I Avolving said screw to .turn the-propeller casing at any desired angle,l said means compising a gear'xed to said screw and a cooperating gear meshing with said screw carried gear, and means for turning the latter.

6. A boat having a well orcasing extending; upwardly from the bottom thereof and having an opening in its bottom, a closure removably mounted in said opening, a casing mounted on the lower face of said closure, a propeller having a shaft mounted in said casing, a shaft extending through said well into the casing on the lower face of'.y

said closure, cooperating means carried by said propeller shaft and said well-carried shaft for driving saidpropeller, means under the control of the operator for driving said well-carried shaftp a tubular screw connected with the casing on the lower face of the closure, said tubular screw being revolubly mounted in said closure, means for revolving said screw to turn the propeller casing at any desired angle, said means comprising a gear having threaded engagement with saidv screw, a laterally movable key carried by said gear, means for engaging said key with said screw for locking the gear in engagement with the screw to adapt it to turn therewith,'and means for turning said gear.

Aing upwardly from the bottom thereof and having an opening in its bottom, a closure removably mounted in said opening, a casing mounted on the lower face of 'said closure, a propeller-having ashaft mounted in said casing, a' shaft extending through said well into thepcasing on? the lower face of said closure, coperating means carried by said propeller shaft and said well-carried shaft for driving said propeller, means under the control of the operator for vdriving said well-carried shaft, a tubular screw connected with the casing on the lower face of the closure, said tubular screw being revolubly mounted in said closure, means for revolving said screw to turn the propeller casing at any desired angle, said means comprising a gear having threaded engagement with4r said screw, a key laterally movable in said gear and adapted to be engaged with or disengaged from said screw for locking the gear to the screw or, permitting the screwl x removably mounted in said opening, a casing mounted on the lowerface of said closure, a propeller having a-shaft mounted in said casing, a shaft extending through said well into the casing on the lower face of said closure, coperating-means carried by said propeller shaft and said well-carried shaft for driving said propeller, means under the control of the operator for driv-" in engagement with said screw, and means for actuating said gear.

9. A boat having a well or casing extending upwardly from the bottom thereof with an opening in its bottom, a'closure removably mounted in said opening, propelling and steering mechanism carried by said closure, means under the control of the operator for retracting or projecting said closure and the propeller carried thereby-into and out of said casing, and means for converting said retracting and projecting means into the propeller shifting means for turning the propeller at any angle.

In testimony whereof l have hereunto set my hand in presence of two subscribing witnesses.

A CHARLES s. ovnn'ron'. Witnesses I HALvoR H. HELLEN, JAMES H. MARSH.