US603398A

US603398A - Arthur dalmer

Info

Publication number: US603398A
Authority: US
Publication date: 1898-05-03
Anticipated expiration: 1915-05-03

Description

(No Model.)

` A. -DALMER.

, Bow vFAGING OAR.-

No.v 603,398. .Pa'fented'May l @CLM v in section; and Fig. 3 is an illustrative view gunwale of a bolt, Fig. 3, and consists of two the oars, so as to turn freely thereon. When Kiel, in the Kingdom of Prussia and German UNITED STATES PATENT OFFICE..`

'ARTHUR DALMER, oF KIEL, GERMANY.

n. Bow-FACING OAR.

SPECIFICATION forming part of Letters Patent No. 603,398, dated May 3, 1888.l

Application inea Aan i5, 1897.

To aZZ whom it may concern:

.Be it known that I, ARTHUR DALMER, of

Empire, have invented Improvements in Rowlocks and Oars or Scnlls for Boats and the Like, of which the following is a specication, reference being had therein to the accompanying drawings.

This invention relates toanew form of rowloeks and oars for boats, and is designed to enable the oarsman to face in the ldirection in which the boat is propelled, whereby aocidents maybe avoided and the services of a steersman rendered unnecessary in boats containing several persons, and at the same time to permit the oars to be operated in the usual manner and turned or feathered in the act of rowing.

In the drawings, Figure 1 is a front elevation of myimproved rowlocks. Fig. 2 is a detail view of a portion of the same with part of a boat equipped with my improved oarlocks, illustrating the operation of the same.

The whole arrangement such as shown in Fig. l is fixedremovably by a bolt to the toothed segments b and b', which gear together and are mounted on the xedarms c and cof a forked support, being connected at their outer ends by the connecting-rods d and d with the handles e and the stems j' of motion is impart-ed to the said handles e, the stems f are made to followv such motion through the gearing of the toothed wheels b and b. To allow, moreover, the stem to turn while rowing-that is to say, to allow the blade to feather or lie fiat on the water or parallel thereto, as shown in dotted lines in Fig. 3-the inner ends of the handlese and of the stems f are provided with spherical and ribbed segments or ends e and f', which are connected by a suspended piece with the similar and likewise -ribbed spherical segments g g', arranged opposite the former segments. The spherical segments g and g are furnished with an extension passing through the sides of the forked support c c aforesaid and carry at their inner ends the vertical Serial No. 632,266. (No model.)

bevel-gears It h. These two vertical gears gear in common with a third horizontal intermediate bevel-gear h2, whereby the turning motion of the oar-handle is communicated to the oar-blade for the purpose of laying the latter either fiat or edgewise in thewater. The construction ofthe spherical segments e and g and g and f, which are connected one with the other at each continuous parallel or angular position, is `clearly shown in Fig. 2, wherein it will be seen that the segment e carries in a semispherical cavity an eyelet or ring t', while the segment g, with its prolongation, carries a spring-hook 7c, engaging with a certain amount of play in the former ring or eyelet, this hook being drawn inwardly by the said spring and only slightly pulled out when the blade is made to beat the water.

From this improved arrangement of oars and rowlocks it will follow that when the oarsman sits with his face turned toward the front or stem of the boat and moves the handles e the stems and blades of the oars will move correspondingly and propel the boat forward. To enable the oars to be dipped in the water and lifted therefrom in the usuall manner, the support c c is pivoted, as at m, to the pin a on an axis parallel to the gunwale.

A special advantage of this apparatus is that besides enabling the oarsman to face the bow of the kboat it permits the oars to be turned freely or feathered in the act of row-- ing. The power-transmitting connections are shown inclosed in a protecting-casing o, whereby theyare protected from the water vand may be kept clean.

imparted to the handle upon its axis will be transmitted to the oar-stem and the blade thereof may be turned or feathered.

2. In rowloeks and oars for boats, the combination with the handle and oar-stem independent of one another, of a frame, gears I), I1 carried by said frame on bearings independent of the handle and stem, connections between the handle and stem and said gears l), b respectively, with freedom for the handle and stem to turn therein, semispherieal gearings on the ends of the handle and stem, and a workin g feathering connection between said semispherieal gearings.

3. In rowloeks and oars for boats, the eombination with the handle and oar-stem independent of one another, of a frame, gears b, b carried by said frame on bearings independent of the handle and stem, connections between the handle and stem and said gears b, b respectively, with freedom for the handles and stem to turn therein, the hemispherieal gears e', f', on the ends of thehandle and stein respectively, the hemispherioal gears g g meshing therewith, and a working feathering connection between the gears y, g'.

4. In rowloeks and oars for boats, the combination with the handle and oar-stem independent of one another, a frame, gears b, b Carried by said frame on bearings independent of the handle and stein, connections between the handle and stem and said gears b, 1) respectively, with freedom for the handle and stem to turn therein, the hemispherieal gears e',f, on the ends of the handle and stem respeetively, the hemispherieal gears g g' meshing therewith and jointed thereto, and a working featheringeonneetion between the gears g, g.

In witness whereof I have hereunto set my hand in presence of two witnesses.

ARTHUR DALMER.

Witnesses:

F. MULLER, F. ROJIKE.