US653435A

US653435A - Means for propelling vessels.

Info

Publication number: US653435A
Application number: US73805199A
Authority: US
Inventors: George Boemermann
Original assignee: Individual
Current assignee: Individual
Priority date: 1899-11-23
Filing date: 1899-11-23
Publication date: 1900-07-10
Anticipated expiration: 1917-07-10

Description

No. 653,435. Patented lu'ly I0, |900. G. BOEMERMANN. MEANS FR PROPELLING VESSELS.

(Application mea Nov. 2a, 1999.) (No Modem 2 sheets-sheet l.

INVENTOR ATTORNEY INI #mi I Y, .WWNV

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WITNESSES No. 653,435. Piened iuly 10, |900.

G BUEMERMANN MEANS FUR PROPELLING VESSELS.. (Application med Nov. 23,' 1899.) (No Model.) 2 Sheets-Sheet 2.

UNITED tSTATES PATENT OFFICE..

GEORGE EOEMERMANN, OE NEW YORK, N. Y,

MEANS FOR PROPELLING VESSELS.

SPECIFICATION forming part of Letters Patent No. 653,435, dated July 10, 1900.

Application tiled November 23, 1899. Serial No. 738,051. (No model.)

To all whom, t may concern: Y f

Be it known that I, GEORGE BOEMERMANN, a citizen of the United States, residing in the city of New York,borou gh of Brooklyn,county of Kings, and State of New York, have invented certain new and useful Improvements in Means for Propelling Vessels, of whichthe following is a specification.

This invention relates in general to means for driving a boat or vessel having as ai propelling device a screw-propeller; and the object is in part to provide for the submersion of the antifriction bearingsand gearing of the propeller-shaft in water, whereby the friction is reduced to a minimum, in part to means whereby the propeller may be driven by hand by two or more persons through the medium of hand-cranks, and in part to means whereby the passage or conduit which leads the water of flotation to the gearing and bearing tail views of the means for shutting the waterI from the tube or casing Vinclosing the pro peller-shaft. Figs. 6, 7, andS are detail views of the thrust-bearings of the propeller-shaft.

Referring primarily to Figs. l to 3, inclusive, ct represents a boat; b, the rudder thereof 5 c, the propeller for driving or propelling the boat, and d the propeller-shaft; These parts in themselves have no specialnovelty.

The boat may have one or more sets of crank mechanisms for driving the propellershaft, the number being dependent somewhat on the sizeof thevboat. In Fig. 1 two of such devices are shown, one of which is illustrated in detail in Figs. L2 and 3.

Fixed in the bottom of the boat are two gearing-boxes e e.. The Vafter box is by preference connected with the stern-post of the boat by altube f, and thetwo boxes are connected together by a similar tube g. These vtubes are alined, and the propeller-shaft extends through them and through the after box, being thus entirely housed inside of the boat. Fig. 2 shows the box seen at the left in Fig. l, and Fig. 3 the box at the top of the pillar which supports the cranks; but as both of thecrank mechanisms for driving are or may be alike a description of one will suffice.

On the box c is fixed a pillar h, on which is rotatively mounted a crank-shaft t', having on its respective ends suitable cranks j. On theshafto' is secured a bevel'gear-wheel k, which gears with a bevel pinionor wheel m on an upright shaft n in thepillar 7L. 4On the lower end of this upright shaft isfixed, Fig. 2, a bevel-wheel o, which gears with a bevel pinion or wheelp on the propeller-shaft. The upright shaft n has roller-bearings above and below. The bearing-box q below, Fig. 2, has a support in the box c, which support straddles the propeller-shaft and is in the' nature of two legs r, one of which is seenfin Fig. 2. This box is in the form of an upright' cylinder with a removable cap s, andincloses a series of bearing-rollers t. The rollers are arranged in pairs, two on each shaft "u and distanced by a ring o between the rollers of the pairs and through which the shafts extend. The bevel-Wheel o has a hollow hub or boss which incloses the box q and'permits the wheelo to fit down closely to the propeller-shaft.' At the upper end of'the pillar h the shaft 'n has asimilar roller-bearing within the cap 7L' of the pillar, as indicated by dotted lines in Fig. 3.V In this case the cap h forms the bearing- `box for the rollers. The cap 7L is mounted on a box h2, Fig.' 3, within which is an end or thrust bearing w for the shaft n. As this bearing is not an essential for the upright shaft and is 'in substance the same as that Aused on the propeller-shaft, a description of the latter, with especial reference to Figs. 2, `6, and 7, will suffice.

In the box e at the end of the propeller-shaft is fixed a bearing-block Qc about the latter, and fixed on the shaft at Opposite sides of said bearing-block are two disks y. Between the respective disks and the bearing 'Qt are 4collars. a', loose on the shaft, and bearing-rings l. Each collar e and ring l serveas supports for the journals on which turn conical rollers 2, that roll on circular tracks 3 on the faces of TOO . the tracks over which they roll.

the bearing-block c and the disks y when the shaft d rotates. The ring l prevents the rollers from being forced radially outward by the pressure. Preferably, these rollers will be flanged at their ends, as shown, and to insure their rotation they may have on one or both ends cogs orteeth to gear with racks along This geared construction is shown in the fragmentary view, Fig. 8, wherein 4 represents the gears on the ends of the roller 3, and 5 the racks. One of the disks y serves to take the thrust when the boat is moving ahead and the other takes the thrust when it is backing.

It will be noted that the propeller-shaft does not have a bearing or need not have a bearing, properly so called, in the block This block is designed to resist the end thrust of the shaft d, which will have a roller-bearing (seen clearly in section in Fig. 2) between the pinion p and the thrust-bearing. If there be two crank mechanisms, as seen in Fig. 2, the shaft (l will extend entirely through this box and there will be or need be no thrust-bearing therein.

The gearing k m will be housed in a casing h3, mounted on the pillar h, and the crankshaft 1l has or may have antifriction-roller bearings (see Fig. 3) similar to or like those for the shafts and u.

The tubular casings f and g and the boxes e are filled with water, and this submergence of the bearings and gearing in. water deadens the rattle and noise of the gearing and lubricates the latter; but in order to prevent the water from entering the boat in case of accident to the casings or boxes or in case it is desired to open the boxes or casings for repairs means are provided for cutting off the access of water to the casingf. This cut-off is seen at 26 in Fig. l and is illustrated in detail in Figs. l and 5. The casingfhas in it an enlargement or box 27 with a removable front plate 2S, and in this box is a clamp ring or device 30, adapted to be operated bya collared screw 3l, provided with a suitable crank or operating handle. The clamp or ring 30 is held in place by a hinge-pin 32, (seen in Fig. 5,) and it has a cut packing-ring 33, which embraces the propeller-shaft. Normally the ring 33 springs open, so as not to touch the shaft d; but if it be desired to cutoff the influx of water it may be clamped thereon by means of the screw 31, when it will act, in conjunctionl with the ring 30, as a valve to check the flow of the water through the casing f. Obviously this closure of the valve will be effected when the propellershaft is not in operation.

It will be obvious that some variation may be made in the construction shown without materially departing from the present invention. For example, the clamp device 30 might be in two sections of any form, as the main function of this device is to close the ring 33 on the propeller-shaft. It will also be obvious without further illustration that if the two disks y were loose on the shaft d and fixed in the box e and the part a: were fixed on lthe shaft and loose in the box the operation would be the same, or, in other words, if there were two blocks and one doublefaced disk y between them and fixed on the shaft the operation would be the same as with the construction shown. Obviously, also, there may be a disk y to resist the thrust in backing in one box e and a disk y to resist the thrust in going ahead in the other box. In this case there would be a bearing-block .fr in each box.

YHaving thus described my invention, I claiml. The combination with a boat, a propeller-shaft mounted therein, a propeller on said shaft, driving-gears at two points along said shaft, and upright shafts at these points gearing with the propeller-shaft, of two boxes c, inclosing the gearing at the said points, a tube g inclosing the propeller-shaft and connecting said boxes, a tubefinclosing the propeller-shaft and extending from thc after box to the stern of the boat and open to the water of flotation, and an antifriction-bearingA in one of said boxes to take the end thrust of the propeller-shaft, whereby the gearing and said thrust-bearing aresubmerged.

2. The combination with a boat, a propeller-shaft mounted therein, and a propeller on said shaft, of a box inclosing said shaft at the point where the driving-gears are situated, the said gears, the driving-shaft, a casing f, connecting said box with the boat at the point where the propeller-shaft passes out, and a cut-off in said casing, whereby the influx of water may be stopped at will.

3. The combination with a boat, a propeller-shaft mounted therein, and a propeller on said shaft, of a box inclosing said shaft at the point where the driving-gears are situated, the said gears, the driving-shaft, a casingf, connecting said box with the boat at the point where the propeller-shaft passes out, and a cut-off in said casing near its outer end, said cut-off comprising a box 27, in the casing f, a cut packing-ring 33, embracing the propeller-shaft, and means for clamping said ring on the shaft.

4. The combination with the boat, the propeller-shaft mounted therein, and the propelleron said shaft, of the roller, end-thrust bearing for the propeller-shaft, the roller shaftbearing therefor, the pinion p on the propeller-shaft, the upright driving-shaft, the wheel 0 thereon gearing with the pinion p, said wheel having in it a hollow to receive an antifriction-roller bearing for the driving-shaft, the said roller-bearing, and a box einclosing all of said bearings and gearing and connected with the water of flotation for submerging the same, substantially as set forth.

5. The combination with a boat, a propeller-shaft mounted therein, a propeller on said shaft, an upright shaft geared below to the propeller-shaft and above to a crank-shaft IOO IIO

for operation by hand, the said crank-shaft, provided with cranks, and anti friction thrustbearings for the propeller-shaft, of a casing inolosing the propeller-shaft, the gearing to the upright shaft, and the thrust-bearings, said casing being open to the Water of flota,- ton, and means for cutting off the inuX of Water to the said casing.

In witness whereof I have hereunto signed my name, this 20th day of November, 1899, in 1o the presence of two subscribing witnesses.

GEORGE BOEMERMANN.

Witnesses:

HENRY CONNETT, PETER A. Ross.