US1060696A

US1060696A - Apparatus for raising sunken wood or the like.

Info

Publication number: US1060696A
Application number: US65164011A
Authority: US
Inventors: Carl Julius Naucler
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-09-27
Filing date: 1911-09-27
Publication date: 1913-05-06
Anticipated expiration: 1930-05-06

Description

G. J. NAUCLER.

APPARATUS FOR RAISING SUNKBN WOOD OR THE LIKE.

APPLICATION FILED SEPT. 27, 1911.

1,960,696. Patented May 6,- 1913.

v 5 SHEETS-SHEET l.

Zl/jinexses. Ind/672201 0. J. NAUOLER.

APPARATUS FOR RAISING SUNKEN WOOD OR THE LIKE.

Fig; 5.

6 SHEETS-$13331 2.

Zl/jineises. In z/enibr.

GOLUMIIA PLANOGIIAPH CO WAIMINUTON, D- G.

Patented May 6, 1913.

' C. J. NAUGLER.

APPARATUS FOR RAISING SUNKEN WOOD OR THE LIKE.

APPLICATION FILED SEPT. 27, 1911.

1,660,696., Patented May6,1913.

5 SHEETS-SHEET 3.

@VDGI O. J. NAUOLER.

APPARATUS FOR RAISING SUNKEN WOOD OR THE LIKE.

APPLICATION FILED SEPT. 27, 1911.

1,060,696. Patented May 6, 1913.

5 SHEETS-SHEET 4.

5 i5 5 H {i1 Mil/1 ew'es.

COLUMBIA PLANBGRAPH co wAsl-lmu'ron B c.

C. J. NAUCLER.

I APPARATUS FOR RAISING SUNKEN WOOD OR'THE LIKE.

APPLICATION FILED 8312127, 1911.

1,060,696, Patented May 6,1913.

5 SHEETS-SHEET 5.

IIIIIn1- M1 A m CARL JULIUS NAUCLER, OF FALUN, SWEDEN.

APPARATUS FOR RAISING SUNKEN WOOD OR THE LIKE.

Application filed September 27, 1911.

To all whom it may concern:

Be it known that I, CARL JULIUs NAUo- LiiR, a subject of the King of Sweden, residing at Falun, in the Kingdom of Sweden, have invented new and useful Improvements in Apparatus for Raising Sunken lVood or the Like, of which the following is a specification, reference being had to the drawings accompanying and forming a part hereof.

The object of the invention is to provide means for conveniently and reliably raising logs, timber or the like sunken in log floating streams, rivers or other water, in whatever position the wood is lying.

. The invention consists, chiefly, of a gripping device or gripping devices each comprising a number of grapples or tongs adapted to seize and raise the wood, said grapples or tongs being operated by suit able means, such as a line or lines or other flexible connection or connections cooperating, if desired, with a floating body or floating bodies, in such a manner that the grapples or tongs will automatically open and close as the apparatus is lowered and hoisted. The apparatus are suitable suspended from cranes placed on a barge, lighter or other vessel and adapted to be swung horizontally. The line or lines or the like carrying the apparatus may be operated by a winding drum or winding drums or the like driven by a motor or motors or by hand. In order that the gripping devices shall reliably seize the wood, the tongs are suitably arranged in planes at angles to each other, preferably by the tongs being placed one after the other along a closed line. Moreover, the grapples or tongs are, preferably, adapted to open and close independently of each other, so as to be able to simultaneously seize and raise wood or timber of difierent diameters. The lowering and hoisting of the apparatus may be performed by two lines, chains or the like, viz. one lowering line and one hoisting line, or a single line. chain or the like cooperating with a floating body may be used, if desired.

The invention also comprises means cooperating with those hereinbefore mentioned for seizing and raising wood in standing position.

The invention further comprises the construction and combination of parts hereinafter set forth.

In the drawings, I have shown various Specification of Letters Patent.

Patented May 6, 1913.

Serial No. 651,640.

forms of apparatus embodying the invention.

Figure 1 is a side view of the one en1bodiment. Fig. 2 is a plan view of the same. Fig. 3 is a side view on a larger scale of part of the apparatus. Fig. 4 is a plan View of the same part. Fig. 5 is a Sectional view of the end of an arm carrying a pair of tongs. Fig. 6 is an elevation of a modified form of the apparatus operated by a single line cooperating with a floating body. Figs. 7 and 8 are side view and plan View respectively of a third form of the apparatus in which a ring or frame has been substituted for the spokes or arms carrying the gripping tongs. Fig. 9 shows a modified detail. Figs. 10 and 11 are side view and plan view, respectively, of a loop for raising wood in standing position. Fig. 12 shows a hook for suspending the said loop. Fig. 13 shows a modified suspension device for the loop. Fig. 14 is an elevation of a further modification of the apparatus suspended from a crane-beam. Fig. 15 is a side view of an apparatus having two gripping devices each comprising a number of gripping tongs, both gripping devices being adapted to be operated simultaneously by a single line.

Referring to the drawings, the gripping devices serving to raise the wood may be suspended by lines, chains or the like from a crane or cranes, as shown at 4: (Fig. 1), said crane or cranes being suitably swingable. The gripping device shown in Figs. 1 to 5 comprises a number of spokes or arms 28 movably attached to a center ring or hub 27 in substantially horizontal positions, each arm suitably consisting of a tube. Placed at the outer end of each arm 28 is an extension 29, the outer, bent end of which carries a plate 30, as shown in Fig. 5. Pivotally supported by a bolt 31 connected to the plate 30 are the double-armed parts of a pair of tongs (Figs. 1 and 3) the aws 32 of which are suitably provided with spikes or teeth 33, as shown. The shanks 34 of the tongs are provided with eyes 35 at their outer ends, and the jaws 32 are provided with a bolt or an eye or hole 36. Attached to the eyes 35 are lines, chains or the like 37, and at tached to the bolts or eyes 36 are lines, chains or the like 38. The lines 37 of the shanks 34 are connected to a ring or the like 40. The lines 38 attached to the adjacent jaws 32 of two adjacent pairs of tongs are connected to a ring or the like 41. All the rings 41 are connected through lines, chains or the like 43 to a ring 44 (Fig. 1), and all the rings 40 are connected through lines, chains or the like 45 to a ring 46. Attached to the ring 44 is a line, chain or the like, hereinafter called the lowering line, which passes through the ring 46 and is connected to the winding drum of a winch. Attached to the ring 46 is a line, chain or the like, hereinafter called the hoisting line, said line being connected to the winding drum of another winch. The ring 46 is further connected to the hub 27 by means of a line or the like 47 passing through the ring 44.

' When the gripping device hangs in the lowering line and the ring 46 rests on the ring 44, the line 47 keeps the arms in substantially horizontal positions. Attached to the line 47 is a stop 48 serving to support the ring 44, when the gripping device hangs in the hoisting line. The system of arms is shown provided with legs 49 adapted to pre vent the gripping device from moving laterally on the bottom of the watercourse, said legs being suitably connected to the line 47 or the stop 48, as may be desired.

The gripping and hoisting mechanism described works as follows: WVhen the gripping device is raised by the hoisting line, the ring 46 with the

lines

45 and 37 .connected to the same as well as the line 47 with the stop 48 and the hub 27 are raised, whereby the jaws of the tongs close and seize the wood lying on the bottom. After hoisting, a pull is exerted on the lowering line and, thereby, on the ring 44 and the

lines

43 and 38 connected thereto, by which the jaws are opened and release the wood.

Fig. 6 shows a contrivance for lowering and hoisting a number of gripping tongs placed on a system of arms, in combination with a floating body adapted to support some of the parts, when the device is sunk into the water. The arms carrying the gripping tongsare marked 50. Hoisting and lowering is performed by means of a single line, chain or the like 51. The latter is connected to a ring or the like 52. Pivotally connected to the said ring by pins or the like are hooks 53. Attached to a ring or the like 54 placed below the ring 52 is a tube 55, the upper end of which has a conical extension 56. Placed around the tube 55 is a floating body 57' suitably made of sheet-iron plates and provided with a central passage for the tube 55, said passage being suitably widened at the top, as shown at 58. A line, chain or the like 59, which is attached to the ring 52, passes through the tube 55 and the ring 54 and carries at its lower end a weight 60, the lower end of which has a conical extension 61. Attached to the ring 54 are rods 62 connected at their lower ends to a ring 63. A downwardly concave body or bowl 64 provided in lieu of the stop 48 (Fig. 1) is connected to the hub 65 of the spokes or arms by rods 66 pivotally attached to the bowl 64 and to the ring 65. At the center'of the bowl is an opening for the weight 60 allowing the latter to pass therethrough until the bowl bears on the conical shoulder 61, other openings being provided for therods 62 so as to permit the same to pass freely through the bowl. The legs 49 are connected at their ends to a rounded point. Placed at the lower end of the apparatus is a buoy or floating body 67 having at its middle a conical recess 68 for the legs 49, the bottom of said recess being formed to match to the rounded point of the said legs. The buoy 67 is provided at its bottom with a conical point 69 serving as a foot and is connected through lines or the like 7 O to a suitable wooden ring 71 the lower side of which is recessed corresponding to the shape of the bowl.

The apparatus described with reference to Fig. 6 works as follows: When the apparatus is lowered, the ring 52 carrying the lines, chains or the like 45 by which the tongs are closed is connected through the hooks 53 and the conical extension 56 of the tube 55 to the ring 54, and as a consequence the lines or chains 43 keep the tongs open. The hub 65 of the arms is thereby carried by the bowl 64 supported by the ring 63. WVhen the apparatus is lowered, the point 69 of the buoy 67 strikes the bottom of the water and the hub 65 of the arms will be supported by the legs 49 on the bottom of the recess 68. The bowl 64 is thereby carried by the rods 66. The ring 54 now sinks onto the ring 71 resting on the bowl which will thus support the ring 54 with the rods 62 carrying the ring 63 and the clutch 53,56 connected to the ring 52. Thereupon the ring 52, on account of its own weight and the weight of the hooks 53 and also under influence of the weight 60 attached to the said ring, slides farther downward so that the ring 52 will bear on the conical extension 56. The latter then causes the hooks 53 to swing outward, whereby the floating body 57 is moved upward by the pressure of the water until the bottom of the recess 58 bears on the extension 56. When the apparatus is thereupon raised, the body 57 prevents the hooks 53 from reengaging the extension 56, and on account thereof the ring 54 and the parts connected thereto remain in positions, whereas the ring 52 is lifted carrying the weight 60 with it until the shoulder 61 bears on the bowl 64. During this movement of the extension 56. When the apparatus is again hoisted, the hooks 53 reengage the ex tension 56, said action being not prevented by the floating body 57 above water. The jaws of the tongs are thus opened so as to release the load, and the apparatus is ready to be again lowered. If it be desired, after the apparatus has been lowered and the clutch 53, 56 disconnected, to again connect the clutch parts, the ring 52 is slowly lo-wered by the line 51, in which case the hooks 53 will contact with the edge of the recess 58 and press the floating body 57 downward until the hooks reengage the extension 56, whereupon the apparatus may be hoisted.

In the constructional form shown in Figs. 7 and 8, a suitably circular ring or frame 72 of wood or other material has been substituted for the arms. Attached to a ring 73, corresponding to the ring 52 of Fig. 6, are lines 7 serving to close the tongs, said lines passing over sheaves 75 on the ring 7 2 and thereupon through pulleys or blocks 76 to the ends of the shanks of the tongs. The lines 77 for opening the gripping tongs may be attached 'to the ring 72, or they may be placed on sheaves 78 on the ring 72 and loaded at their other ends by counterweights 79. Firmly connected to the ring 72 by arms 80 is a round plate or disk 81 carrying the tube 82 forming part of the clutch. The latter resembles that described with reference to Fig. 6, except that the hooks 53 are attached by chains 83 to the ring 73, that the line extending from the said ring carries an ovoidal body 8%, and that the lower end of the said line is attached to the disk 81 and carries a weight 85 connected to the same through a pulley or block.

The apparatus last described works as follows: When the apparatus is lowered, the

clutch members

53, 56 engage each other and the tongs 86 are nearly open. The jaws of the tongs first meet the bottom of the water, whereupon the weight 85 pulls the ring 73 and the body 8% and thereupon the whole apparatus downward. The body 84 will then rest on the conical extension of the tube 55, and the ring 73 will bear on the hooks 53. The clutch is thus disengaged and the tongs are fully opened. When the line 51 is hoisted, the tongs are closed, and at the same time the ring 72 and the parts connected thereto are pulled downward by the weight 85 until the ring bears on the blocks 76 whereupon the apparatus is hoisted with the tongs closed and maneuvered as hereinbefore described.

Fig. 9 shows a detail adapted to be used in the apparatus last described. It consists of legs 87 attached to the blocks 76 and serving to prevent the jaws of the tongs from falling on the bottom of the water.

The contrivance shown in Fig. 6 and also in Fig. 8 and Figs. 10 to 12, and serving to raise the timber having a standing position, consists of a line or lines or the like each arranged in the manner to be described. One end of the line is provided with a ring or eye, the other end being passed through the same and connected to the gripping device. By this means a loop is formed, as clearly shown at 92, 93 in Fig. 6 or at 94 in Fig. 8. This loop is suspended by hooks or the like placed between adjacent pairs of tongs in such a manner that the loop is re leased when the gripping device is hoisted and the jaws of the tongs are closed. During the continued hoisting of the apparatus the loop contracts about the'timber projecting through'the loop and causes it to raise with the apparatus.

Figs. 10 and 11 show a hook 95 by means of which the loop is suspended between adjacent pairs of tongs. The hook 95 is shown loosely placed between two jaws, each appertaining to one of two adjacent pairs of tongs. Fig. 12 shows the hook 95 on a larger scale viewed from two sides at right angles to each other.

Fig. 13 shows a modified arrangement for supporting the loop. Attached to the inner part 96 of a pair of tongs, just above the pivot pin 100 thereof, is a hinge 97 the depending part of which takes up a vertical position when the tongs are open. In this position of the tongs the depending member of the hinge is engaged by a pawl placed on a pin 99 projecting from a plate 98, by which the line placed inside the said depending part is prevented from dropping. The pivot pin 100 is attached to the other part 101 of the pair of tongs, and the plate 98 is attached to the pivot pin 100. It will thus be understood that, when the tongs are opened, the depending member of the hinge is disengaged on account of the same being turned in a direction opposite to the direction of movement of the pivot pin, by which the line forming the loop is free to drop on the bottom of the water.

In the constructional form of the apparatus shown in Fig. 14- the maneuvering of the apparatus is effected by a single line 104: extending from a winding drum to the apparatus. 101 is a ring or plate connected by rods to the hub of a system of radiating arms. 102 is a ring serving as an attachment for the lines, chains or the like by which the tongs are opened, and 103 is a further ring serving as an attachment for the connections by which the tongs are closed. 105 is a part of the crane-beam carrying the apparatus. Attached to the line 10a is a clamp or link 106 carrying a pin 107, and pivotally supported by the said pin is a pair of hooks 108, the parts of which extending above the pin 107 terminate in horizontal semicircular arcs 109. Attached to the lower part of the clamp 106 is a line 110 which thus forms a continuation of the line 104, said line 110 thus carrying the ring 102. Attached to the center of the ring 103 is a tube 111 through which the line 110 passes and which is provided at its upper end with a conical extension 112. Placed above the ring 102 is a floating body 113, suitably of sheet-iron, said floating body having a central opening for the tube 111. Attached to the ring 102 is a line 114 passing. freely through a hole at the center of the ring 101 and carrying below the said ring a weight 115. Attached to a line 116 passing over a sheave at the end of the crane-beam is a weight 117 having its point turned downward. The line '104 passes freely through a hole extending through the weight 117 in the longitudinal direction of the same. The apparatus thus constructed works in the following manner: Then the apparatus is lowered, the tongs of the same are carried by the ring 102 by means of the lines, chains or the like connected to the same and serving to open the tongs, said tongs being thus kept open during the lowering of the apparatus. The ring 102 is supported by the line 110 attached to the same and by the line 104 connected to the former. The ring or plate 101 connected to the hub of the arms carrying the tongs rests on the weight 115 attached to the lower end of the line 114, the upper end of which is attached to the ring 102. When the tongs have been lowered to the bottom of the water the ring 101 ceases to descend. This is also true in respect to the ring 103 and the parts connected thereto, said parts beingsupported by the floating body 113.

The parts of the apparatus attached to thelines 104 and 110, on the contrary, continue to move downward until the ring 102'bears on the ring 101 and the clutch 106-109 meets the conical extension 112. The hooks 108 of the clutch then under the influence of the weight 115 and the weight of the clutch proper pass below and engage the extension 112 and at the same time the clamp 106 contacts with the upper surface of the said extension. In this manner the ring 103 and thereby the lines serving to close the tongs will be connected to the line 104. WVhen the latter is hoisted, the tongs will thus close about the wood on the bottom of the water, and at the same time the weight 115 is pulled into contact with the ring 101 so as to support the weight of the hub and the arms and tongs carrying the load. When the apparatus has been hoisted. and the wood brought on the floating bridge, a further pull is exerted on the line 104 so that the semicircular arcs 109 are caused to slide along the weight 117 attached to the line 116, by which the hooks 108 are opened. The ring 103 and the parts connected thereto now slide downward into contact with the ring 102, and at the same time the ring 102 will exert a pull on the jaws of the tongs so as to open the same and release the load. The parts carrying the hub remains in their positions. If the clutch is to be disconnected while the apparatus is on the bottom of the water, the weight 117 is lowered by the line 116 until the said weight meets the clutch and disconnects the same.

The apparatus shown in Fig. 15 is used for simultaneously maneuvering two or more gripping devices of the kind described, by a. single line. In the constructional form of the apparatus shown parts of the members of Fig. 14 are employed. According to Fig. 15, the lines 110, the number of which is equal to the number of gripping devices, are, however, attached to a ring 128 connected through the bolt 107 to the hooks 108 and the clamp 106. The apparatus further comprises a tube 129, the upper end of which is provided with a conical extension or shoulder 130. Attached to the tube 129 are suitable

tubular supporting arms

131, 132 adapted to swing horizontally (oneupper and one lower system of arms) and arms 133 adapted to swing vertically. The arms 133 suitably consist of bars connected by pairs and carry at their outer ends sheaves 134 pivotally supported between the bars of each arm. The

arms

131 and 132 of the upper and lower system of supporting arms carry at their outer ends forked brackets or the like 135 and 136 respectively. Pivotally supported by bolts 137 in the said forked brackets are sheaves 138. Placed within the tube 129 is a weight 140 attached by a line 139 to the lower part of the clamp 106. Placed around the lower part of the tube 129 is a tube 141 adapted to move along the tube 129. Placed at the lower end of the tube 141 is a ring 142 adapted to turn on the tube 141, and pivotally connected to the said ring by pins 142 are arms or rods 143, the outer end of each of the said arms or rods being articulated to the hub of one of the gripping devices. Placed between the upper and lower systems of

arms

131, 132 is a floating body 144 having a central hole for the tube 129.. Attached to a line 145 is a weight 146 adapted to be used for dis connecting the clutch. The gripping devices are maneuvered in substantially the same manner as those of the apparatus shown in Fig. 14, the rings 102 being connected by the lines 110 passing around the

sheaves

138 and 134 to the clutch of the apparatus, while the rings 103 are connected by bolts or otherwise to the outer ends of the brackets 136.

. The apparatus shown in Fig. 15 is provided with two gripping devices of the kind hereinbefore described, but, obviously, any desired number of gripping devices may be used. In the embodiment shown the

arms

131, 133 are pivotally attached to plates 147 having holes for the tube 129. When the apparatus is provided with two gripping devices, the arms are suitably connected to the middle one of the said plates which is to this end provided at both sides with holes for the connecting bolts 148. The plates are prevented by flanges on the tube 129 from sliding longitudinally thereon. The arms 182 are suitably connected by bolts 150 to brackets 149 on the tube 129 in such a man ner as to be free to swing laterally. When three or more arms with corresponding gripping devices are used, the arms are suitably held in position relatively to each other by a line or the like attached to the brackets 135. The apparatus works in substantially the same manner as that described wit-h reference to Fig. 14. 'When the apparatus is lowered, the gripping devices are carried by the lines or chains 110 attached to the rings 102, and the jaws of the tongs connected to the said rings are thereby kept open. During the lowering of the apparatus the rings 103 rest on the rings 102. When the tongs have arrived at the bottom of the water, the apparatus is kept by the floating body 144 in upright position. The vertical tube 141 rests on the bottom of the water and is free to slide on the tube 129 until it meets the attachment for the arms 132. During the continued lowering of the line 104 the rings 102 and the clutch common to all the grip ping devices move downward. The rings 102 thus continue to move downward until they meet the rings 101, and the clutch descends until its hooks 108 have passed the conical shoulders 130. The line 104 is then connected to the rings 108 which are thus directly lifted when the apparatus is hoisted, by which the jaws of the tongs are caused to close. When the load has been raised and placed in the floating bridges, the clutch is disconnected by the weight 146 upon further hoisting of the apparatus. The lines 110 then exert a pull on the aws of the tongs causing the same to open so as to release the load. The arms 143 chiefly serve to counter act the influence on the equilibrium of the apparatus caused by an irregular distribu tion of the load.

I claim:

1. In an apparatus for raising sunken wood, the combination of a gripping device comprising a number of tongs placed one at the side of another along a closed line, means for lowering and hoisting the apparatus, and meansfor opening and closing the tongs.

2. In an apparatus for raising sunken wood, the combination of a gripping device comprising a number of tongs placed one at the side of another along a closed line and the planes of which extend at angles to each other, means for lowering and hoisting the apparatus, and means for opening and closing the tongs.

8. In an apparatus for raising sunken wood, the combination of a gripping device comprising a number of tongs placed one at the side of another along a. closed line and adapted to open and close independently of one another, means for lowering and hoisting the apparatus, and means for opening and closing the tongs.

4. In an apparatus for raising sunken wood, the combination of a gripping device comprising a number of tongs placed one at the side of another along a closed line and the planes of which extend at angles to each other, means for lowering and hoisting the apparatus, and means for automatically opening and closing the tongs as the apparatus is lowered and hoisted.

In an apparatus for raising sunken wood, the combination of a gripping device comprising a number of tongs placed one at the side of another along a closed line, means for lowering and hoisting the apparatus, and means for automatically opening and closing the tongs as the apparatus is lowered and hoisted.

In an apparatus for raising sunken wood, the combination of a gripping device comprising a number of tongs placed one at the side of another along a closed line and adapted to open and close independently of one another, means for lowering and hoisting the apparatus, and means for opening and closing the tongs.

7. In an apparatus for raising sunken wood, the combination of a gripping device comprising a number of tongs placed one at the side of another along a closed line and adapted to open and close independently of one another, means for lowering and hoisting the said apparatus, and means for automatically opening and closing the tongs as the apparatus is lowered and hoisted.

8. In an apparatus for raising sunken wood, the combination of arms radiating from a common center, tongs placed one at the side of another along a closed line and carried by the said arms, means for lowering and hoisting the apparatus, and means for opening and closing the tongs.

9. In an apparatus for raising sunken wood the combination of a gripping device comprising a number of tongs, placed one at the side of another along a closed line, means for lowering and hoisting the apparatus, means connected to the jaws of the tongs for opening the same, and means connected to the shanks of the tongs for closing the same.

10. In an apparatus for raising sunken wood, the combination of arms radiating from a common center, tongs placed one at the side of another along a closed line and carried by the said arms, means for lowering and hoisting the apparatus, means connected to the jaws of the tongs for opening the same, and means connected to the shanks of the tongs for closing the same.

11. In an apparatus for raising sunken wood, the combination of a gripping device comprising a number of tongs placed one at the side of another along a closed line, means for lowering and hoisting the apparatus, means for opening and closing the tongs, and a line connected to the apparatus and forming a loop supported by the jaws of the tongs in open position of the same.

12. In an apparatus for raising sunken wood, the combination of arms radiating from a common center, tongs carried by the said arms, means for lowering and hoisting the apparatus, means connected to the jaws of the tongs for opening the same, means connected to the shanks of the tongs for closing the same, and a line connected to the apparatus and forming a loop supported by the jaws of the tongs in open position of the same.

13. In an apparatus for raising sunken wood, the combination of a frame, tongs car ried by the said frame, a ring connected to the shanks of the tongs, a line connected to the said ring for hoisting and lowering the apparatus, a second ring movable toward and away from the former, connections between the saidsecond ring and the jaws of the tongs, a clutch for connecting and disconnecting the said rings, and a floating body for keeping the clutch parts disconnected after disconnection of the same.

'14. In an apparatus for raising sunken wood, the combination of a frame comprising a number of arms radiating from a common center, tongs carried by the said arms, a ring connected to the shanks of the tongs. a line connected to the said ring for hoisting and lowering the apparatus, a second ring movable toward and away from the former, connections between the said second ring and the jawsof the tongs, a clutch for connecting and disconnecting the said rings, and a floating body for keeping the clutch parts disconnected after disconnection of the same.

15. In an apparatus for raising sunken wood, the combination of movable arms radiating from a common center, tongs placed one at the side of another along a closed line and carried by the said arms, means for lowering and hoisting the apparatus, and means for opening and closing the tongs. i

16. In an apparatus for raising sunken wood, the combination of movable arms radiating from a common center, tongs placed one at the side of another along a closed line and carried by the said arms, means for lowering and hoisting the apparatus, means connected to the jaws of the tongs for opening the same, and means connected to the shanks of the tongs for closing the same.

CARL JULIUS NAUCLER.

Witnesses AUG. SoRENsEN, KARL RUNCSKOG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). 0.