Boat anchor hoist
US RE23791 E
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Description (OCR text may contain errors)
BOAT ANCHOR HOIST 2 Sheets-Sheet 1 Original Filed Aug. 29, 1950 ma 7 m n 6 G l. 1 R s g B a W/// ///4 5 I T Eu 3 4 m I 0. 6 O 2 4 u H M l xf z 'm s1- EVRVTELIAM L. ADAIB BY E. A. ALDERSON ET AL Re. 23,791
March 2, 1954 BOAT ANCHOR HOIST 2 Sheets-Sheet 2 Original Filed Aug. 29, 1950 INVENTORS ERNESI A.ALDED-$ON WILLIAM J... Anna E) Reissued Mar. 2, 1954 BOAT ANCHOR HOIST Ernest A. Alderson, Pico, and. William L.. Adair, Pucnte, Calif.
Original No. 2,605,082, dated July 29, 1952, Serial No. 182,074, August 29, 1950.
Application for reissue September 2.0, 1952, Serial No. 310,742
Matter enclosed in heavy brackets I: appears in the original patent but forms no part of this reissue specification; matter printed in italics indicates the additions made by reissue.
This invention relates to boat anchors, and more particularly to an improved boat anchor hoist me hanism.
A. main object of the invention is to provide a novel and improved boat. anchor unit provided with an anchor and a hoist mechanism therefor, the unit being very simple in construction, being easy to mount on a boat, and being very easy to operate.
A further object of the invention is to provide an improved boat anchor hoist device which is relatively inexpensive to manufacture, which is rugged in construction, which enables the operator to hoist anchor in a short period of time and with a minimum amount of effort, and which enables the anchor to be released instantaneously, whenever desired, by a very simple operation.
Further objects and advantages of the invention will become apparent from the following description and claims, and from the accompanying drawings, wherein:
Figure 1 is an elevational view, partly broken away, of the stern portion of a boat on which is mounted an improved anchor unit constructed in accordance with the present invention;
Figure 2 is an enlarged front elevational detail view of the anchor unit of Figure 1,;
Figure 3 is a horizontal cross-sectional view taken on line 33 of Figure 2;
Figure 4 is a vertical cross-sectional view taken on line 44 of Figure 2;
Figure 5 is a vertical cross-sectional view taken on line 5-5 of Figure 4;
Figure 6 is a cross-sectional detail view taken on line 65 of Figure 5;
Figure '1 is a fragmentary cross-sectional detail view taken on line l'| of Figure 3.
Referring to the drawings, the anchor unit is generally designated at H. The anchor unit comprises a generally rectangular housing I 2 having side Walls l3 and M, a top wall l5, and a rear wall l6. The bottom of the housing is open, and the side walls of the housing are notched at 11, I1, allowing the forward portion of the housing to be fitted over the stern portion, shown at It, of a boat in the manner illustrated in Figure 1. Designated at I9 is a transverse partition wall secured in the housing at the rear margins of the notches H. Threaded through the forward wall of the housing, designated at 20, are the respective screw clamps 2|, 2|, each screw clamp being provided at its inner end with a clamping foot 22, and at its outer end with a k ob 28; As shown in Fi ure 1, the housing I! may be ri i ly ure on th stern portion I 8 of a boat by tightening the clampingscrews 2| so as to provide clamping pressure between the foot elements 22 and the transverse partition wall Ill. The root elements 2:. are rotatably mounted on. the ends of the clamping screws 21, wh r by said clamping screws may be freely rotated r lative to said foot elements.
Dfi i natcd at 24 is a first transverse shaft which is rotatably and slidably mount d in. the side walls I3 and M of the housing 12, As shown in Figures .1 and 6, said side walls are formed with inclined slots 25 in. which the ends of the shaft 24 are rotatably and slidably received. Shaft 24 has secured thereon the discs 25, 25 which define therehetween a reel on which is wound the anchor hoist cable 21. One end of the cable is secured to the shaft .24 and the other end is secured to the anchor, shown at 28, Secured on shaft 24 is a relatively small second gear 29. Designated at is a second transverse shaft rotatably mounted in the side walls 13, [4 of the housing I2. Rotatably mounted on the shaft 30 is a relatively large first gear 3| Which normally is in mesh with the gear 29, as shown in Figure 4. Pivoted to the side wall [3 of the housing [2 at 33 is a second pawl or dog 32 which engages the periphery of the gear 3! and prevents rotation of said gear in a counterclockwise direction, as viewed in Figure 4, but allows the gear 3! to be rotated clockwise. Secured rigidly on shaft 30 is a third gear 34 disposed adjacent to the gear 3|. Pivoted to the gear 3| at 35 is a dog 35 which is engaged with the periphery of the gear 34 and which is biased into engagement with said periphery by a spring 3'! connecting the dog 36 to a pin 38 carried by the, gear 3!. AS shown in Figure 4, the dog 35 is arranged to allow the gear 34 to be rotated counterclockwise relative to the gear 3 I, but looks the gear 34 to the gear 31 for clockwise rotation, as Viewed in Figure 4.
Secured on the shaft 30 is a second reel 39, and
en ircling the shaft 39 between the reel 39 and the housing side wall I4 is a helically coiled spring 40. one end of the spr n be n r d t th side wall. 14 and the other. nd of th pr ng ing secured to the reel. Thesprins 40 i wound up when the reel 35 is rota ed [counterclockwise] clockwise, as viewed from the right side of he housing H. in Figure 4. Wound n the reel 39 i a cable 5! which xtends slidably throu h th front wall 20 f the housin 12 an wh ch has secured on its ends a knob 42.. It will be seen that by pulling on the knob 42, the reel 39, and shaft 39 willv be ,rctatedljcounterciockwise] cZoc-kw'iscras viewed Figure 4. causing the spring 41 to wound up- D ring thi operation [loos s2. locks the. gear Bhhu the d g .36 allows the g ar 34 to loo-rotated countcrcloclo wise relative to the gear 3|. After the knob 42 has been thus pulled outwardly, said knob is released and the spring 40 unwinds, causing the gear 3| to be rotated clockwise, as viewed in Figure 4, since the dog 36 locks the gear 3| to the ear 34 for this direction of rotation. As above explained, the dog 32 is arranged to allow gear 3| to rotate clockwise relative to the housing] the dog 36 locks the gear 34 with respect to the gear 31, while the dog 32 allows the gear 31 to be rotated clockwise relative to the housing wall 13. Clockwise rotation of the gear 3| is transmitted to the gear 29 and to the shaft 24, causing the cable 21 to be wound up on the shaft, the winding up of the shaft 24 being more rapid than the rotation of the gear 3| because of the relatively large gear ratio between gear 3| and gear 29.
After the knob 42 has been thu pulled outwardly, said knob is released and the spring 40 unwi'nds, causing the gear 34 to be rotated counterclockwise as viewed in Fig. 4, since the dog 35 will allow rotation of the gear 34 in the counterclockwise direction with respect to the gear 31, which is locked by the dog 32. This effectively resets the device for another anchor lifting and spring winding pull of the knob 42 toward the left, as viewed in Fig. 4.
Designated at 43 is a third transverse shaft mounted between the side walls 13 and 14 of the housing 12, the ends of the shaft 43 being supported in the hole (or slot) means formed in the side walls 13 and 14. In the specific form illustrated, said hole (or slot) means comprises inclined slot means 44 rotatably and slidably supporting the shaft 43. [Designated at 43 is a third transverse shaft rotatably and slidably mounted in the side walls l3 and M of the housing l2, the ends of the shaft 43 being rotatably and slidably supported in inclined slots formed in the side walls I3 and 14.] Rigidly secured on shaft 43 is a gear 45 which is in mesh with the gear 29, as shown in Figure 4. Shaft 43 is formed with the reversed helical grooves 46, and engaged on the shaft is a follower block 41 engaged in a conventional manner with the reverse grooves 45, so as to be moved longitudinally first in one direction on the shaft 43, and then to be reversed in direction after reaching the end of the shaft, so that it traverses the shaft in an opposite direction. The follower block 41 is provided with an eye member 48 engaging around the cable 21 so as to guide said cable longitudinally along the reel defined between the discs 26, 26 so that the cable will be evenly wound on the reel in one direction of rotation of the shaft 24, and will be smoothly unwound from the reel in the opposite direction of rotation. The block member 41 is slidably supported in a transversely extending channeled. track member 49 secured to the rear wall I3 of the housing I2, said block member 47 and the shaft 43 carrying same being mounted for slight forced resilient movement toward the rear wall of the housing 12 and for resilient return to the position shown in Fig. 7 upon removal of applied force. In the particular form illustrated in Fig. 7, said slight forced resilient movement is permitted by reason of the resiliency of the rear wall 15 and/or the rear portion of the follower member 47-said resiliency being such as to allow the extremely slight movement of the shaft 43 necessary to allow disengagement of the gear 29 from the gear 31 when the actuating handle 58 is forcibly actuated toward the right, as viewed in Figs. 3 and 4, thus similarly forcibly moving toward the right, as viewed in said Figs. 3 and 4, the rod strip 52.
57. It should be kept in mind that the required movement is extremely slight and, therefore, the before-mentioned resiliency is adequate to allow this disengaging movement. It i obvious that upon release of the actuating handle 58, said resiliency will immediately return the shaft 43 to its former position, thus also returning the gear 29 (which is also biased by spring 62) into engaged relationship with respect to the gear 31. This is also facilitated by the resilient engagement of the teeth of gears 29 and 45. This comprises one means for allowing the slight forced resilient movement of the shaft 43 so as to allow disengagement of the gears 29 and 31 and to subsequently provide for re-engagement thereofhowever the present invention is not limited to this specific arrangement since many other resilient and/or biasing means of generally similar nature may be employed for this purpose without departing from the basic spirit or teachings of the present invention. Hinged to the rear wall I6 above the track member 49 is an arm 50 which has secured to its free end a transversely extending bar member 5| carrying a rubber pressure The bar member 50 is biased counterclockwise, as viewed in Figure '7, by a coil spring 53 bearing atone end on the arm 50 and hearing at the other end on the upper marginal portion of the rear wall IS in the manner shown in Figure '1, thereby biasing the pressure strip 52 into engagement with the cable 21 wound up on the reel carried by shaft 24.
Designated at 54 is an arm pivoted at 55 to the side wall I3 of the housing. The shaft 24 extends rotatably through the intermediate portion of the arm 54. Pivotally secured at 56 to the top end of the arm 54 is a rod member 51 which extends slidably through the front wall 20 of the housing l2 and has a knob 58 secured on its forward end.
Threaded on the rod member 5? is a nut 59 limiting movement of the rod member 51 to the left, as viewed in Figure 4. Designated at 60 is an angle bracket secured to the side wall I3 of the housing through which the rod member 51 slidably passes. Designated at 6| is a washer mounted on the rod member adjacent the nut 59, and encircling the rod member between the washer 5| and the angle bracket 65 is a coil spring 62 which exerts biasing force on the washer 6 I, biasing the rod member 51 to the left, as viewed in Figure 4, and thereby biasing the gear 25 into meshing engagement with the gear 3|. By exerting pressure on the knob 58, however, the rod member 51 may be moved to the right, as viewed in Figure 4, causing the arm 54 to be swung clockwise, thereby disengaging the gear 29 from the gear 3|. The gear 45 and the shaft 43 are simultaneously moved rearwardly, along with the shaft 24, since such movement is permitted by the slots 44 supporting shaft 43. Normally, the gear 29 is locked against clockwise rotation, as viewed in Figure 4, because the gear 3| is locked against counterclockwise rotation relative to the housing by the dog 32. However, when the gear 29 is moved out of meshing relationship with the gear 3|, as above described, the ear 29 becomes unlocked and the cable 21 is therefore allowed to freely unwind by the weight exerted thereon by anchor 28.-
It will therefore be apparent that to wind up the cable 21 and therefore to elevate the anchor, it is merely necessary to pull the knob 42 outwardly [and then release the knob 42, allowing the spring 40 to unwind, thereby] thus causing gear 34 to transmit torque to gear 3| through the dog 36, which causes gear 3| to transmit torque to gear 29 and shaft 24. This winds the cable 21 on the reel carried by the shaft 24. The knob 42 can then be released, which will cause the gear 34 to move in counter-clockwise direction with respect to the locked gear 31 (as viewed in Fig. 4) so as to reset the device for a subsequent anchor lifting pull and spring winding pull of the knob 42. This resetting operation occurs as a result of the force exerted by the spring 40, which is wound each time the knob 42 is pulled and the anchor is lifted. The above process is repeated as many times as is necessary to wind up the cable 21. When it is desired to release the anchor, the operator merely presses inwardly on the knob 58, thereby freeing the shaft 24 and allowing the cable 21 to unwind by the weight exerted thereon by the anchor 28. The slot means 25, supporting the shaft 24, and the slot means 44, supporting the shaft 43, allow said shafts to be forcibly resiliently moved :rearwardly, to enable the gear 29, to be disengaged from the gear 31. When pressure on the knob 58 is released, the spring 62, the spring 53 and the resilient engagement of the shaft 43 and follower member 47 with respect to the means mounting same causes all of said ele ments to resiliently move back to their normal positions wherein the gear 29 meshes with the gear 31. [The slots 25, supporting the shaft 24, and the slots 44, supporting the shaft 43, a1low said shafts to be moved rearwardly, to enable the gear 29 to be disengaged from the gear 31. When pressure on the knob 58 is released, the spring 52 and the spring 53 move the elements back to their normal positions wherein the gear 29 meshes with the gear 3 I Since the gear 3| is normally locked against counterclockwise rotation, as viewed in Figure 4, the gear 29 is also normally locked.
While a specific embodiment of an improved boat anchor hoist has been disclosed in the foregoing description, it will be understood that various modifications within the spirit of the invention may occur to those skilled in the art. Therefore, it is intended that no limitations be placed on the invention except as defined by the scope of the appended claims.
[What is claimed is We claim:
1. In a boat anchor hoist, a frame, a first transverse shaft journaled in said frame, a reel mounted on said shaft, a second transverse shaft rotatably mounted in said frame, a first gear fixed on said second shaft, a second gear fixed on said first shaft, means coupling said first gear to said second gear, said means including an upstanding arm rotatably supported intermediate its ends on said first shaft and having the lower end pivotally connected to said frame, a longitudinally movable means operatively connected to the upper end of said arm for effecting the coupling of said second gear with said first gear, a
third gear secured on said second shaft, a first'f first gear relative to the frame, a second reel secured to said second shaft, and a coil spring encircling said second shaft, one end of said spring being secured to said second reel and the other end of said spring being secured to said frame, said spring being arranged to be wound up responsive to rotation of said second reel relative to said second gear.
2. In a boat anchor hoist, a frame, a first transverse shaft journaled in said frame, a reel mounted on said shaft, a second transverse shaft rotatably mounted in said frame, a first gear fixed on said second shaft, a second gear fixed on said first shaft, means coupling said first gear to said second gear, said means including an upstanding arm rotatably supported intermediate its ends on said first shaft and having the lower end pivotally connected to said frame, and longitudinally movable means operatively connected to the upper end of said arm for effecting the coupling of said second gear with said first gear, a third gear secured on said second shaft, a first pawl pivoted to said first gear and engaging said third gear, said first pawl limiting rotation of said third gear with respect to said first gear, a second pawl pivoted to said frame and engaging said first gear, said second pawl limiting rotation of said first gear relative to the frame, a second reel secured to said second shaft, a coil spring encircling said second shaft, one end of said spring being secured to said second reel and the other end of said spring being secured to said frame, said spring being arranged to be wound up responsive to rotation of said second reel relative to said second gear, a cable wound on said second reel, said cable extending slidably through a portion of said frame, and a head element secured to the end of the cable and being engageable with said portion.
3. In a boat anchor hoist, a frame, a. first transverse shaft journaled in said frame, a second transverse shaft journaled in said frame, a gear train coupling said first and second shafts, a first reel secured on said first shaft, a second reel secured on said second shaft, 2. cable wound on said second reel and extending slidably through a portion of the frame, a head element secured on said cable and being engageable with the outside of said portion, a spring encircling said second shaft, one end of the spring being secured to the frame and the other end being secured to said second reel, first ratchet means carried by the second reel and said gear train, limiting rotation of the second reel relative to the gear train, and second ratchet means carried by the frame and the gear train limiting rotation of the gear train relative to the frame.
ERNEST A. ALDERSON. WILLIAM L. ADAIR.
References Cited in the file of this patent or the original patent UNITED STATES PATENTS Number Name Date 1,005,015 French Oct. 3, 1911 1,061,749 Jennings May 13, 1913 2,340,892 Maynes Feb. 8, 1944