US2521875A - Safety mounting for outboard motors - Google Patents

Description

Sept. 12, 1950 H. SHOWALTER SAFETY MOUNTING FOR OUTBOARD MOTORS Filed April 4, 1949 IN VEN TOR.

HEBSDHEL SHCIWALTER BY 7 p ATTORNEY Patented Sept. 12 1950 TE PATEN'II ..,;.ioFF.lC:E IING Rowen-HEARD Morons e walten'itiehfiifindfind; ApplicationAfiit' l,1949Sri5lNot5g4$4 w (p 24s+ w a This invention relates to safety mountings for boat outboard-motors In attaching outboard-motors to boat's, itis the usual practice to; secure them. directly.-to, he wooden'transom of a-hoatby means of clamps which are tightened into place, by oneior-Amore clamping screws having buttons'directly-in engagement. with the wooden surface of; the boat transom. .1 The gripping; force of'the clamping screws may be destroyedbvfiihe. wetting. of the transom; thereby reducing theirictional force between the clamping surfaces,- or a clamping screwmaybe-.1

come loosenectdue to the vibration. of themotor and; the forces set up by the thrust of tlieipro v peller. y

-In the usual arrangement; the looseningof the holding force; between ;-a clamping screw; andathe transom isvery likely to cause the motor; ifitt'lS running, to be. lifilecl from its suppor-t-anii-"lost! overboard. In- .the case; 1-where two clamping screws are used, ii one loses its cla nping forceg the motor may swing; in a vertical plan'eto exerta liiting and turning forcesufiloient tofcansize the boat. .It is one of the objects of my :inventionato eliminate these hazards by means of ai'rattach-a ment which will; prevent" vertical movemeiit I'of the inotor ;;with;res1ge ot-tow the transom-sin ease i the clamping;iorcebetween the m'otor-"an d"th'es 30 transom becomes reduced inthe operation of the motor.

secured to the boat I permit motor.

Another object of my invention is to provide a safety attaching? means rte oii tboard motors dapt f r- 1 h di iereew pss p e-me of easy attachment and removalof the with variation in distance btwein-thegclamns ing bolts ofthemotors, t, I Other objectsahd-featursof my invention will be apparent from the detail-c description" and drawings; and will be pointed out iii the clai'frisl My invention is illustrated in the accompanying drawings, in which Fig. 1 is a front elevational view of one form of my invention.

Fig. 2 is an end elevational view of the device showing an outboard motor clamping member.

Fig. 3 is a front elevational view of a modified form of my invention, and

horizontal' groovesut 1 y :1; The plate 6 is genera1lyrectangular in" shape fiiare exactly the saiiie" "the groove 22.

Fig; l isya fragmentary sectional 'vie'wrtakeri uponline' l -ekofiFigrli-w 3 Referring first to Fig. .1 ofthe drawings; 5-."

fragmentary view of a boat transom'to whiclrthe structuretofi my invention; isv appliedzsiAttached I to theitransonr 5 is asmetal; plate tiwhich maybe of cast aluminum; brass; bronze or other metal of a'corrosive resistant charac,ter.'-- v and is providedthrough "itsiface witli two uni; formly, spaced-elongatedJopenings 1 for the nur pose tobehereinafter desciiibedt- As" ShOWIli- IH' Fig. 2b theaplate' isaipiovided -wifih' a thickened" portion atits 'upper edee,-and' tap'ersTrdm':tori

13013017130111 except 'adjacent'to :aneabove the" elorr-e gatedopenings' l, @where' it is provided with thin. flattened surfaces It.) Portions I I112 and lfi-rjofi the plate-which defihethe ell'd limitsofitlfe 61611 gated openingS:-'are oi; the greatest thickness; Taitthe under-portion of 'thexplate; Theseithickened portions are-feachprovided withua hole" l4 ning lengthwise of the plate '6; as indicated in the broken away portion of Fig; 1.1. Lat'ching rods I5"extend'ithrough the'idrillholes' I4 adjacent the withdrawal'hitherod 1 I J nt'its iniirendg eacli of latching i is provided upon one s d with a flattened poi a meteor ture.

In a normal position of a latching rod IS with position, as shown in dotted lines in Fig. 2, the flattened portion 2! will permit the rod I5 to he slid past the spring member 23 so that it may be withdrawn from the plate 8, through the groove I8.

In the use of this device, the plate 6 is secured to the inner face of a boat transom 5, by means of screws 60, in a position to receive clamp brackets 3B for an outboard motor. Threaded clamp A modification of the device which will readily suggest itself to one skilled in the art, will be the use of a single elongated latch mechanism as shown in Fig. 3 in place of the double latch 5 mechanism shown in Fig. l.

The device of this invention provides a simple, easily applied safeguard for the lives and equipment of the users of outboard boat motors. By its use, all danger of thecmoton jumping from screws 3!, extending through an inner leg "32 of 10 tthe lfboat fin "case; the i clanfipii giiscrewsi become the bracket 30, carry clamp buttons 33 on their inner ends.

To mount the motor, the latching rods l5 are withdrawn from the plate andthe clamp :brackloosened will be obviated so long as the latch ,nnechanism is in place. The simplicity of the apparatus makes it an easy matter to attach ian'd' detachafin'otor, thus readily adapting itself ets are slid over the boat transom 5, and platei l'li'fto'a quick change of motors as may oittimes be 3, until the clamp buttons 33 are opposit the A elongated openings 7, through which they may be passed by turning the clamp screws 3| until 3| are set in position, the latching rods I 5 will be slid into position back of the upper portion of the buttons 33, and turned downwardly'to'engage the spring member 23 with the locking roove 22. It will be'noted'by reference to Fig. 3 that the latching rod l5 is separated from the adjacent face of the button 33 a, distance lessthan' the thickness of the metal at the edge of the elon gated opening I, so that even though the clamp screw 3| should become loosened, itis limited in its backward movement toa distance equal to thespace between the rod I5 and the adjacent there is shown a plate 40, provided with a" single circular opening 4i, to receive a clamp screw but ton 42. The metal of the plate 40, surroundingthe opening 4|, is raised or projected outwardly from-the face orthe plate to'provide a semi-- circular or U-shaped projection 43, having legs 44, which extend upwardly to the upper edge of the plate 40. Aligned openings through the legs 44 receive a latching bar, comprising a horizontal portion 45, and a rightangled portion 46. The

plate 40 is provided at eachend with vertical de-- pressions 41 and horizontal depressions 43 to re-' ceive and permit the removal of the latching bar;

A notch or groove 49 in one end of the'latchin'g' bar receives a latching spring 50, secured bya screw 5!, upon the face of the plate 40. A screw 52,. having its head flattened upon one side, as at 53, is secured in the plate 40 adjacent the lower end of the-vertical groove or depression 41,-

and may be turned to engage and lock the lower lend of the right angled portion of the latching bar r By moving the screw 52 from the'lower right- '65 vided at the lower lefthand corner, and the screw 5| from the upper lefthand corner to the hole 56 a hand corner of the plate 40 to the hole 55, proin the upper righthand corner of the plate 40, the. device may be converted from righthand operation to lefthand operation. a

G the spirit or-Sc'ope of my invention.

movably' supported inthe' longitudinal openings.

the smaller type motors. In .this modification vnecessaryin outboard motor boat races.

Because'of the elongated openings 1 in the ii. ,device of Fig? 1; this form may be used for difthey become firmly engaged with the inner I H B I of the boat transom. When the clamp" screwsferent types and sizes of motors where there is a variation in separation of the clamping screws.

Although I have shown and described myinvention' with respect to-certain' details or oonstruction, it is to be understood that-,1; donot wish to be'unduly limitedthe'reto,-many modifications being possible' 'without departing iroln;

IclaimzfQ H g I l. The" combination" with a boat transom 1 and anoutb'oard clamping screw, ofa safety :ijttac'aliment for the motor comprising a plate-secured to the transomfsaid'plate being providecl with a transverse opening to receive the clamping screw button, and with longitudinally aligned openings spaced horizontally and forward ofthebutton' receiving opening and 'a' retaining member" re- 2. The combination with a boat transonr'aii d an outboard'motor clamping screw, or a's'afty longitudinally and rotatably movable in j the" aligned openings, and means for latching the retaining member in one position of its rotational movement; I

'3. The combination with a boat transoin'and' an outboard motor clamping screw, of a saret j attachment for a motor comprising a plate sc cured to the transom; said plate being'provicle'd with a transverse opening to receive the clamp ingz'screwbutton andwith longitudinally aligned openings" spaced horizontally forward of' 'the but is nEFEnENcEs CITED The following references are of record in the file of this patent: r

Un TEn'sYrATEs PATENTS Number Name Date 2,472,704 Human June 7, 1949 1, ton receiving opening a distance less than the-

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