US165072A - Improvement im rowlocks - Google Patents
Improvement im rowlocks Download PDFInfo
- Publication number
- US165072A US165072A US165072DA US165072A US 165072 A US165072 A US 165072A US 165072D A US165072D A US 165072DA US 165072 A US165072 A US 165072A
- Authority
- US
- United States
- Prior art keywords
- lock
- oar
- brace
- rowlocks
- improvement
- 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
- 241000143392 Oar Species 0.000 description 16
- 230000000153 supplemental Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- KUVIULQEHSCUHY-XYWKZLDCSA-N Beclometasone dipropionate Chemical compound C1CC2=CC(=O)C=C[C@]2(C)[C@]2(Cl)[C@@H]1[C@@H]1C[C@H](C)[C@@](C(=O)COC(=O)CC)(OC(=O)CC)[C@@]1(C)C[C@@H]2O KUVIULQEHSCUHY-XYWKZLDCSA-N 0.000 description 2
- 101700015701 SPI Proteins 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000003467 diminishing Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H16/00—Marine propulsion by muscle power
- B63H16/06—Rowlocks; Mountings therefor
Definitions
- the oar-lock is capable of turning MICHAEL F. DAvIs, on PonTLAND, MAINE IMPROVEMENT EN ROWLOCKS.
- the object of my invention isto produce an oarlock of improved construction and operation.
- the oar-lock consists ot a rectangular frame, A, composed oi' the parts a' b c d. Thisis set into a plate or foot, B, and turns in the foot on the pivot e. This foot is to be secured to the Outrigger or gunwale.
- the upright part d has also a pivot, f, which works in a hole in the horizontal arm of the brace g. This brace is also to 'be secured to the foot B, and screwed to the Outrigger or gunwale by means ot ⁇ a nut and washers or any other convenient method.
- the upright d receives the bearing of the oar while the stroke'is being made.
- the top piecec is 'turned one side to admit the beam ot' the oar into the lock, and, when the oar is once placed within the lock, this top piece is.swung around, so as to cover the top of the oar-lock, and the hook h is passed into a hole in the stud t, so asto keep it in position.
- the hinge upon which the toppiece turns is largest space for the oar-beam, and so as not to interfere with the inclination of the oar from the lock downward to the surface of the water.
- the top piece c may be made rigid on the standard d, and a narrow opening made at the angle between it and the part b, so as to admit the blade ot' the oar edgewise into the lock. The Voar is then pushed ont through the lock as far as desired.
- brace 7c can be made adjustable, in order to increase or diminish atwill the extent to which the lock can be swung.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
Description
A clarethe following to be a full, clear, and expart of this specitication, in whichupright d and its pivots, and the supplemental brace g. The oar-lock is capable of turning MICHAEL F. DAvIs, on PonTLAND, MAINE IMPROVEMENT EN ROWLOCKS.
Specification forming part of Letters Patent No. 165,072, dated June 29, 1875; application tiled April 7, 1874:
To all whom lit may concein shown atj. The top piece is offset on the out- Be it known that I, MICHAEL F. DAVIS, of ward side of the standard d, so as to give the Portland, in the county-ot' Cumberland and State of Maine, have invented a new and useful Improved Oar-Lock; and I do hereby deact `description oi' the same, reference being made to the accompanyingdrawing forming Figure lis a side elevation 5 Fig. plan.
Same letters show like parts.
The object of my invention isto produce an oarlock of improved construction and operation. y A
The oar-lock consists ot a rectangular frame, A, composed oi' the parts a' b c d. Thisis set into a plate or foot, B, and turns in the foot on the pivot e. This foot is to be secured to the Outrigger or gunwale. The upright part d has also a pivot, f, which works in a hole in the horizontal arm of the brace g. This brace is also to 'be secured to the foot B, and screwed to the Outrigger or gunwale by means ot` a nut and washers or any other convenient method. The upright d receives the bearing of the oar while the stroke'is being made.
It will' be seen that the pressure of A-thc stroke is `sustained by the combination ofthe 2, a top to a certain extent upon its two pivots aand fas the stroke is made, turning outwardly or away from the gunwale when the oar is thrown back preparatory to the stroke, and slowly swinging inward as the oar goes through the Water.
Y The top piecec is 'turned one side to admit the beam ot' the oar into the lock, and, when the oar is once placed within the lock, this top piece is.swung around, so as to cover the top of the oar-lock, and the hook h is passed into a hole in the stud t, so asto keep it in position.
The hinge upon which the toppiece turns is largest space for the oar-beam, and so as not to interfere with the inclination of the oar from the lock downward to the surface of the water.
The top piece c may be made rigid on the standard d, and a narrow opening made at the angle between it and the part b, so as to admit the blade ot' the oar edgewise into the lock. The Voar is then pushed ont through the lock as far as desired.
I make my lock rectangular in shape, thus forming but three bearings for the round beam of the oar, and so diminishing considerably the friction of the beam within the lock.
is shows a brace projecting from the lowerend ot the standard d, which regulates the extent to which the lock can turn or swing by contact with the supplemental brace g. This brace 7c can be made adjustable, in order to increase or diminish atwill the extent to which the lock can be swung.
It will be seen that the bearings ot' the oarlock in the gunwale or Outrigger are on the forward side of the lock, which serves to diminish the leverage or strain upon the Woodwork ot therail, or upon the Outrigger. This is an advantage over the common oar-lock in use, which has a pivot in the center.
What I`claimA as my invention, and 'desire to secure by Letters Patent, is
l.V The combination of the brace or arm g, aftiXed to the boat, with the rowlock a b d, and pivoted-or hinged top piece c, hook h, and stud d, substantially in the manner and for the purposes set forth.
2. In combination with a-rowlock, substantially as described, the spir 7c.
MICHAEL F. DAVIS. Witnesses: f
FRANK H. JORDAN, EDGAR S. BRowN.
ATENTM' @FFI i
Publications (1)
Publication Number | Publication Date |
---|---|
US165072A true US165072A (en) | 1875-06-29 |
Family
ID=2234481
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US165072D Expired - Lifetime US165072A (en) | Improvement im rowlocks |
Country Status (1)
Country | Link |
---|---|
US (1) | US165072A (en) |
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0
- US US165072D patent/US165072A/en not_active Expired - Lifetime
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