US638335A - Diving apparatus. - Google Patents
Diving apparatus. Download PDFInfo
- Publication number
- US638335A US638335A US69987598A US1898699875A US638335A US 638335 A US638335 A US 638335A US 69987598 A US69987598 A US 69987598A US 1898699875 A US1898699875 A US 1898699875A US 638335 A US638335 A US 638335A
- Authority
- US
- United States
- Prior art keywords
- compartment
- pipes
- chamber
- openings
- diving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000009189 diving Effects 0.000 title description 19
- 239000002184 metal Substances 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 13
- 238000010276 construction Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/34—Diving chambers with mechanical link, e.g. cable, to a base
- B63C11/44—Diving chambers with mechanical link, e.g. cable, to a base of open type, e.g. diving-bells
Definitions
- My invention relates to diving apparatus, and has special reference to such apparatus as is used for deep-sea diving.
- the object of my invention is to provide a cheap, safe, and effective diving apparatus which can be anchored and used by deep-sea divers in locating wrecks, grappling for objects and storing the same within the apparatus, and many other uses which 'the apparatus affords.
- FIG. 1 is a Vertical central section of my improved diving apparatus, showing some of the parts in full lines.
- Fig. 2 is a detail sectional view of one of the grappling-hooks, showing some of the parts in full lines; and
- Eig. 3 is an enlarged detail sectional view of one of the hand-nuts and its connections.
- 1 represents the diving-bell, which is preferably made of cast-iron in the form of a hollow ball and is cast in two parts composed of the upper section 2 and lower section 3. These sections 2 and 3 are secured together at or about the center of the bell 1 by bolts 4 engaging with flanges 2 3' on the upper and lower sections 2 and 3, so as to form the hollow water-tight compartment 5 within the bell 1.
- the trap-door 6 which is provided With a handle 6 thereon and is held in place and rendered Water-tight by the con- Vex platej, which fits against the bottom of Fittingv the door 6 and the inner face of the wall 2 and is secured to the door 6 and wall 2H by the screw-bolt '7' engaging with said door through the plate 7 and held by nut '77" connected there- 5 5 ting within the Wall 3 of the lower section 3.
- the plates are provided with the concave openings 10 11 within the same, which are adapted to engage with the exterior or convex surface 9 of the metal balls 9, so as to form a universal joint therein for the purposes hereinafter de- 7o scribed.
- Bolts 12 pass through the inside plates 10 into the outside plates 1l on each side of the metal balls 9, and nuts 12 engage with said bolts 12 and against washer-plates 12 around the bolts 12 to hold the plates 75 10 and 11 and balls 9 in place.
- Pipes 13 fit within the metal balls 9 by means of threaded portions 13 on said pipes 13 engaging with the threaded opening 9 Within the balls 9, and
- the outer ends of said pipes 13 are provided 8o with grappling-hooks 14, which are pivoted at 14 to said pipes 13 and have jaws 14" thereon.
- the inner ends of the pipes 13 within the compartment 5 are provided with the hand-nuts 15 thereon, which are keyed to a groove 15 85 in the pipes 13'by a pin 132 and engage by a threaded portion thereon with the threaded portions 13 on the pipes 13 for raising and lowering the same and the grappling-hooks 14 thereon, as shown in Eig. 3.
- Fitting looselyr 9o within the pipes 13 are the bars 16, which are connected at their outer ends to the grapplinghooks 14 by means of straps or links lr6', pivoted to the bars 16 at 16"'and to the hooks 14 at 14 boxes 17 on the inner ends of the pipes 13 and are provided with anysuitable means for raising and lowering said bars 16 to open and close the grappling-hooks 14, such as that illustrated,which consists of a rack 18, formed roo on the inner end of the bars 16, which is .adapted to be engaged by a segmental gear 19, sup- Fitting within the walls 3" of 6o
- These bars 16 pass through stuffing- 95 ported in a bracket 19' on the stuffing-boxes 17 and provided with an operating-handle 19" thereon.
- the diving-bell 1 is provided with the observation or lookout ports 20, (shown in dotted iines,) which are formed in the lower section 3 adjacent to the metal balls 9, and a platform 21 is supported by the standards 21' in the lower part of the compartment 5 for the operator to stand on.
- the tapered cage 22 Secured to the exterior surface of the lower section 3 and hanging below the bell 1 is the tapered cage 22, which-is provided with the frame 22', having the tapered anchor-point 23 secured on the lower end thereof.
- the cage 22 is secured by its frame 22' to the lower section 3 of the bell 1 by bolts 24 engaging with the plate 24', formed as part of the frame 22', and with the lower section 3 of the bell, and a metal netting is secured around the frame22' above the 'anchor-point' 23 for holding the different objects therein.
- the use and operation of my improved diving apparatus are as follows: The apparatusis placed within the water and supported from the vessel or oat by the ropes or chains 8 leading therefrom and connected to the eyes 8 on the bell 1, and when it is desired.
- the operator or diver enters the bell 1 through the opening 6 in the wall 2" of the upper section 2 into the compartment 5, when'the trap-door 6 can be inserted into the opening 6' and the same held in place by the diver screwing the con veX platev 7 tightly against the trap-door 6 and inner face of the wall 2" by means of the bolt 7 and nut 7".
- the apparatus can then be lowered from the vessel or iioat by means of the chains 3 to the position desired near4 the wreck to be examined orto the object to be examined or secured and the anchor-point 23 on the cage 22 take into the sea-bottom to hold the apparatus in a secured position.
- the diver desires to use one of the grapplinghooks 14 for any purpose, it can be lowered by turning the hand-nuts 15 on the threaded portion 13' of one of the pipes 13 in the desired direction,which, being keyed to a groove in the pipes 13, will cause the pipe 13 to be lowered through the openin g 9' ofthe metal ball 9, connected to the pipe 13, to the object to be raised,
- the cage 22 wh ich can be accomplished by swinging the pipe 13 and connecting parts in the ball 9 to an upright position, when the diver can turn the segmental gear 19 in an opposite direction, so as to lower the bar 16 by means of the rack 18 engaging with the gear 19 and open the jaws 14" of the hooks 14 through the links 16 connected thereto and to the bar 16, so releasing the object within the hooks 14 and allowing the same to drop within the cage 22.
- the diving apparatus can be raised to the vessel or iioat by the chains 8 and the object removed from the cage 22, as well as the diver from the bell 1, through the trap-door opening 6', as above described.
- any number of grapplinghooks can be used on the diving apparatus Ice can also be placed within the compartment of the bell, under the platform therein, to which an air-supply pipe can lead from theV vessel or float and open into the ice, and another openend air-exhaust pipe can lead from the ice in the compartment below the platform to the Vessel or float for exhausting such air from the compartment, so that cold air can be supplied ro the operator or the diver through contact of the air from the vessel or float with such ice, if desired.
- air supply and exhaust pipes can be run down from the vessel or ioat and connected to the interior or compartment of the bell above the platform for supplying air thereto.
- electric wires can be run from the vessel to the interior of the bell for supplying electric light to the port-holes therein or to the compartment for enabling the diver to more thoroughly perform his work therein and to examine the objects on the exterior of the apparatus.
- my improved diving apparatus is cheap and simple in its construction and operation and will not get out of order.
- objects can be examined and'secured in a rapid and easy manner and can be placed-within the apparatus for the purpose of landing the same on the vessel or float carrying the apparatus.
- a diving apparatus comprising a watertight chamber or compartment having openings in the Walls thereof, metal balls fitting within water-tight connections in said openings and adapted to form universal joints therein, pipes fitting within openings in said metalballs by a threaded connection, grappling-hooks on the outer ends of said pipes, and means for raising and lowering said pipes and for opening and closing said hooks from the chamber or compartment.
- a diving apparatus comprising a watertight chamber or compartment having openings in the walls thereof, metal balls fitting within water-tight connections in said open- IOO ings and adapted to form universal joints therein, pipes fitting within openings in said metal balls by a threaded connection, grappling-hooks on the outer ends of said pipes, means within said chamber or compartment for raising and lowering said pipes to and from the same, and means within said chamber or compartment for opening and closing said grappling-hooks.
- a diving apparatus comprising a watertight chamber or compartment having openings in the walls thereof, metal balls Iitting within water-tight connections in said openings and adapted to form universal joints therein, pipes fitting Within openings in said metal balls by a threaded connection, grappling-jaws supported on the outer ends of said pipes, a hand-nut keyed to a groove :in
- a diving apparatus comprising a watertight chamber or compartment having openings in the wa-lls thereof, metal balls fitting withinwater-tight connections in said openings and adapted to form universal joints therein, pipes fitting within openings in said balls by a threaded connection, grapplingjaws supported on the outer ends of pipes, a hand-nut keyed to a groove in said pipes within the chamber or compartment and having a threaded connection therewith for raising and lowering the same, a rod or ⁇ bar within said pipes pivotally connected at its outer end to said grappling-jaws, and means connected to said rod for raising and lowering the same to open and close the said jaws.
- a diving apparatus comprising a watertight chamber or compartment having openings within the walls thereof, metal balls iitting within water-tight connections in said openings and adapted to form universal joints therein, pipes fitting within openings in said jaws supported on the outer ends of said pipes, a hand-nut keyed to a groove in said pipes balls by a threaded connection, grappling' within the chamber or compartment and having a threaded connection therewith for raising and lowering the same, a rod or bar within said pipes pivotally connected by links at its outer end to said jaws, a stuffing-box on said pipes surrounding said rod or bar within the chamber or compartment, a gear-rack on said rod or bar within the chamber or compartment beyond said stuffing-box, and a gear-wheel supported on said stuffing-box engaging with said rack for raising and lowering said rod or bar to open and close said jaws.
- a diving apparatus comprising a watertight chamber or compartment, grapplinghooks universally connected to said chamber or compartment and adapted to be raised and lowered and opened and closed from said chamber or compartment, and a cage below said chamber or compartment and secured thereto.
- a diving apparatus comprising a watertight chamber or compartment, grapplinghooks universally connected to said chamber or compartment adapted to be raised and lowered and opened and ,closed from said chamber or compartment, a cage below said chamber or compartment and secured thereto, and a tapered point or end on the bottom of said cage.
- a diving apparatus comprising a watertight chamber or compartment, grapplinghooks universally connected to said chamber or compartment adapted to be raised and lowered and opened and closed from said chamber or compartment, a frame below said chamber or compartment and secured thereto, a tapered point or end on the bottom of said frame, and a wire netting or gauze surrounding said frame.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Toys (AREA)
Description
'Patented Dec. 5, |899.
J. E. HOLLAND.
DIVING APPARATUS.
(Application filed Dec. 20, 1898.)
No Model.)
lnTTnn STATns PATENT Tinten.
JAMES E. HOLLAND, OE PITTSBURG, PENNSYLVANIA, ASSIGNOR OF ONE- HALF TO ANTON LUTZ, OF ALLEGHENY, PENNSYLVANIA.
olvlNG APPARATUS.
sPEcIFIcATIoN forming part of Letters Patent No. 633,335, dated December 5:, 139e. Application iled December 20, 1898. Serial :Nou 699,875. (No model.)
To oli/ZZ whom it may concern:
Be it known that I, JAMES E. HOLLAND, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a cert-ain new and useful Improvement in Diving Apparatus, of which the following is a specification.
My invention relates to diving apparatus, and has special reference to such apparatus as is used for deep-sea diving.
The object of my invention is to provide a cheap, safe, and effective diving apparatus which can be anchored and used by deep-sea divers in locating wrecks, grappling for objects and storing the same within the apparatus, and many other uses which 'the apparatus affords.
My invention consists, generally stated, in the novel arrangement, construction, and combination of parts, as hereinafter more specifically set forth and described, and particularly pointed out in the claims.
To enable others skilled in the art to which my invention appertains to construct and use my improved diving apparatus-1,1 will describe the same more fully, referring to the accompanying drawings, in which- Figure 1 is a Vertical central section of my improved diving apparatus, showing some of the parts in full lines. Fig. 2 is a detail sectional view of one of the grappling-hooks, showing some of the parts in full lines; and Eig. 3 is an enlarged detail sectional view of one of the hand-nuts and its connections.
Like numerals herein indicate like parts in each of the figures of the drawings.
As illustrated in the drawings, 1 represents the diving-bell, which is preferably made of cast-iron in the form of a hollow ball and is cast in two parts composed of the upper section 2 and lower section 3. These sections 2 and 3 are secured together at or about the center of the bell 1 by bolts 4 engaging with flanges 2 3' on the upper and lower sections 2 and 3, so as to form the hollow water-tight compartment 5 within the bell 1. within an opening 6 in the wall 2 of the upper section 2 is the trap-door 6, which is provided With a handle 6 thereon and is held in place and rendered Water-tight by the con- Vex platej, which fits against the bottom of Fittingv the door 6 and the inner face of the wall 2 and is secured to the door 6 and wall 2H by the screw-bolt '7' engaging with said door through the plate 7 and held by nut '77" connected there- 5 5 ting within the Wall 3 of the lower section 3. 65
The plates are provided with the concave openings 10 11 within the same, which are adapted to engage with the exterior or convex surface 9 of the metal balls 9, so as to form a universal joint therein for the purposes hereinafter de- 7o scribed. Bolts 12 pass through the inside plates 10 into the outside plates 1l on each side of the metal balls 9, and nuts 12 engage with said bolts 12 and against washer-plates 12 around the bolts 12 to hold the plates 75 10 and 11 and balls 9 in place.` Pipes 13 fit within the metal balls 9 by means of threaded portions 13 on said pipes 13 engaging with the threaded opening 9 Within the balls 9, and
the outer ends of said pipes 13 are provided 8o with grappling-hooks 14, which are pivoted at 14 to said pipes 13 and have jaws 14" thereon. The inner ends of the pipes 13 within the compartment 5 are provided with the hand-nuts 15 thereon, which are keyed to a groove 15 85 in the pipes 13'by a pin 132 and engage by a threaded portion thereon with the threaded portions 13 on the pipes 13 for raising and lowering the same and the grappling-hooks 14 thereon, as shown in Eig. 3. Fitting looselyr 9o within the pipes 13 are the bars 16, which are connected at their outer ends to the grapplinghooks 14 by means of straps or links lr6', pivoted to the bars 16 at 16"'and to the hooks 14 at 14 boxes 17 on the inner ends of the pipes 13 and are provided with anysuitable means for raising and lowering said bars 16 to open and close the grappling-hooks 14, such as that illustrated,which consists of a rack 18, formed roo on the inner end of the bars 16, which is .adapted to be engaged by a segmental gear 19, sup- Fitting within the walls 3" of 6o These bars 16 pass through stuffing- 95 ported in a bracket 19' on the stuffing-boxes 17 and provided with an operating-handle 19" thereon.
The diving-bell 1 is provided with the observation or lookout ports 20, (shown in dotted iines,) which are formed in the lower section 3 adjacent to the metal balls 9, and a platform 21 is supported by the standards 21' in the lower part of the compartment 5 for the operator to stand on. Secured to the exterior surface of the lower section 3 and hanging below the bell 1 is the tapered cage 22, which-is provided with the frame 22', having the tapered anchor-point 23 secured on the lower end thereof. The cage 22 is secured by its frame 22' to the lower section 3 of the bell 1 by bolts 24 engaging with the plate 24', formed as part of the frame 22', and with the lower section 3 of the bell, and a metal netting is secured around the frame22' above the 'anchor-point' 23 for holding the different objects therein.
The use and operation of my improved diving apparatus are as follows: The apparatusis placed within the water and supported from the vessel or oat by the ropes or chains 8 leading therefrom and connected to the eyes 8 on the bell 1, and when it is desired. to use the apparatus for any purpose the operator or diver enters the bell 1 through the opening 6 in the wall 2" of the upper section 2 into the compartment 5, when'the trap-door 6 can be inserted into the opening 6' and the same held in place by the diver screwing the con veX platev 7 tightly against the trap-door 6 and inner face of the wall 2" by means of the bolt 7 and nut 7". The apparatus can then be lowered from the vessel or iioat by means of the chains 3 to the position desired near4 the wreck to be examined orto the object to be examined or secured and the anchor-point 23 on the cage 22 take into the sea-bottom to hold the apparatus in a secured position. If the diver desires to use one of the grapplinghooks 14 for any purpose, it can be lowered by turning the hand-nuts 15 on the threaded portion 13' of one of the pipes 13 in the desired direction,which, being keyed to a groove in the pipes 13, will cause the pipe 13 to be lowered through the openin g 9' ofthe metal ball 9, connected to the pipe 13, to the object to be raised,
` (which the operator can see through the portholes 20,) when the diver can close the grappling-hools 14 about the object by grasping the handle 19" on the segmental gear 19, and turning in the desired direction will cause the bar 16, engaging with the gear 19 byits rack 18, to be raised and draw the jaws 14" of the grappling-hooks 14 toward each other around the object to be examined or raised. After this is done the diver can raise the object to be` examined by him through the port-holes 2O or place-within the cage 22 -by simply turning the hand-nut 15 in the opposite direction and so raising the pipe 13 and the object within and caught by jaws 14" on the hooks 14 to a position to be examined or dropped into the and any one used for the purpose.
It is evident that any number of grapplinghooks can be used on the diving apparatus Ice can also be placed within the compartment of the bell, under the platform therein, to which an air-supply pipe can lead from theV vessel or float and open into the ice, and another openend air-exhaust pipe can lead from the ice in the compartment below the platform to the Vessel or float for exhausting such air from the compartment, so that cold air can be supplied ro the operator or the diver through contact of the air from the vessel or float with such ice, if desired. lt is also evident that such air supply and exhaust pipes can be run down from the vessel or ioat and connected to the interior or compartment of the bell above the platform for supplying air thereto. It is also evident that electric wires can be run from the vessel to the interior of the bell for supplying electric light to the port-holes therein or to the compartment for enabling the diver to more thoroughly perform his work therein and to examine the objects on the exterior of the apparatus.
It will thus be seen that my improved diving apparatus is cheap and simple in its construction and operation and will not get out of order. By its use objects can be examined and'secured in a rapid and easy manner and can be placed-within the apparatus for the purpose of landing the same on the vessel or float carrying the apparatus.
What I claim as my invention, and desire to secure by Letters Patent, is-
1. A diving apparatus comprising a watertight chamber or compartment having openings in the Walls thereof, metal balls fitting within water-tight connections in said openings and adapted to form universal joints therein, pipes fitting within openings in said metalballs by a threaded connection, grappling-hooks on the outer ends of said pipes, and means for raising and lowering said pipes and for opening and closing said hooks from the chamber or compartment.
2. A diving apparatus comprising a watertight chamber or compartment having openings in the walls thereof, metal balls fitting within water-tight connections in said open- IOO ings and adapted to form universal joints therein, pipes fitting within openings in said metal balls by a threaded connection, grappling-hooks on the outer ends of said pipes, means within said chamber or compartment for raising and lowering said pipes to and from the same, and means within said chamber or compartment for opening and closing said grappling-hooks.
3. A diving apparatus comprising a watertight chamber or compartment having openings in the walls thereof, metal balls Iitting within water-tight connections in said openings and adapted to form universal joints therein, pipes fitting Within openings in said metal balls by a threaded connection, grappling-jaws supported on the outer ends of said pipes, a hand-nut keyed to a groove :in
said pipes within the chamber or compartment and havinga threaded connection therewith for raising and lowering the same, and means within said chamber or compartment for opening and closing said jaws.
4C. A diving apparatuscomprising a watertight chamber or compartment having openings in the wa-lls thereof, metal balls fitting withinwater-tight connections in said openings and adapted to form universal joints therein, pipes fitting within openings in said balls by a threaded connection, grapplingjaws supported on the outer ends of pipes, a hand-nut keyed to a groove in said pipes within the chamber or compartment and having a threaded connection therewith for raising and lowering the same, a rod or` bar within said pipes pivotally connected at its outer end to said grappling-jaws, and means connected to said rod for raising and lowering the same to open and close the said jaws.
5. A diving apparatus comprising a watertight chamber or compartment having openings within the walls thereof, metal balls iitting within water-tight connections in said openings and adapted to form universal joints therein, pipes fitting within openings in said jaws supported on the outer ends of said pipes, a hand-nut keyed to a groove in said pipes balls by a threaded connection, grappling' within the chamber or compartment and having a threaded connection therewith for raising and lowering the same, a rod or bar within said pipes pivotally connected by links at its outer end to said jaws, a stuffing-box on said pipes surrounding said rod or bar within the chamber or compartment, a gear-rack on said rod or bar within the chamber or compartment beyond said stuffing-box, and a gear-wheel supported on said stuffing-box engaging with said rack for raising and lowering said rod or bar to open and close said jaws.
6. A diving apparatus comprising a watertight chamber or compartment, grapplinghooks universally connected to said chamber or compartment and adapted to be raised and lowered and opened and closed from said chamber or compartment, and a cage below said chamber or compartment and secured thereto.
7. A diving apparatus comprising a watertight chamber or compartment, grapplinghooks universally connected to said chamber or compartment adapted to be raised and lowered and opened and ,closed from said chamber or compartment, a cage below said chamber or compartment and secured thereto, and a tapered point or end on the bottom of said cage.
8. A diving apparatus comprising a watertight chamber or compartment, grapplinghooks universally connected to said chamber or compartment adapted to be raised and lowered and opened and closed from said chamber or compartment, a frame below said chamber or compartment and secured thereto, a tapered point or end on the bottom of said frame, and a wire netting or gauze surrounding said frame.
In testimony whereof I have hereunto set my hand, at Pittsburg, in the county of Allegheny and State oi' Pennsylvania, this 28th day of November, A. D. 1898. 4
JAMES E. 'IOLLAND.
Witnesses:
ANTON LU'rz, J. N. COOKE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US69987598A US638335A (en) | 1898-12-20 | 1898-12-20 | Diving apparatus. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US69987598A US638335A (en) | 1898-12-20 | 1898-12-20 | Diving apparatus. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US638335A true US638335A (en) | 1899-12-05 |
Family
ID=2706924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US69987598A Expired - Lifetime US638335A (en) | 1898-12-20 | 1898-12-20 | Diving apparatus. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US638335A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2987893A (en) * | 1956-10-29 | 1961-06-13 | American Mach & Foundry | Underwater craft |
| US3379021A (en) * | 1964-09-28 | 1968-04-23 | Ocean Systems | Inhabitable underwater structure |
| US20080060477A1 (en) * | 2002-10-22 | 2008-03-13 | Hoganas Ab | Method of preparingiron-based components |
-
1898
- 1898-12-20 US US69987598A patent/US638335A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2987893A (en) * | 1956-10-29 | 1961-06-13 | American Mach & Foundry | Underwater craft |
| US3379021A (en) * | 1964-09-28 | 1968-04-23 | Ocean Systems | Inhabitable underwater structure |
| US20080060477A1 (en) * | 2002-10-22 | 2008-03-13 | Hoganas Ab | Method of preparingiron-based components |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US962019A (en) | Diving-bell apparatus for submarine work. | |
| US638335A (en) | Diving apparatus. | |
| EP0245343A1 (en) | Diving apparatus and methods of operating same | |
| US541794A (en) | Fifths to anton lutz and george muth | |
| US1308168A (en) | I lanoobaph co | |
| US1352992A (en) | Observation-station | |
| US1450232A (en) | Submarine salvage vessel | |
| US1916294A (en) | Rescue tower | |
| US521208A (en) | jenkins | |
| US1697020A (en) | Safety device for submarines | |
| US650134A (en) | Apparatus for submarine pipe-laying. | |
| US1790414A (en) | filbert | |
| US1349578A (en) | Wreck-salvaging apparatus | |
| US579548A (en) | Device for locating sunken boats | |
| US591773A (en) | Apparatus | |
| US748484A (en) | Wrecking device. | |
| US1919834A (en) | Rescue device for submarines | |
| US1072569A (en) | Submarine vessel. | |
| US517630A (en) | Apparatus for raising sunken vessels | |
| US1453918A (en) | Means for salvaging vessels | |
| US1899059A (en) | Submarine salvager | |
| US388257A (en) | Territory | |
| US563565A (en) | And ebenezer m | |
| US998204A (en) | Submarine boat. | |
| US41365A (en) | Improved submarine boat |