US799946A - Power-transmitting mechanism. - Google Patents

Description

No- 799,946. PATENTED SEPT. 19, 1905.

- P. M. SLOGUM. POWER TRANSMITTING MECHANISM.

APPLICATION FILED 1350.27, 1904- 2 SHEETS-SHEET 1.

7 @ikViif WM 7 6 (1' Vim 44mg PATENTED SEPT. 19, 1905.

P. M. SLOGUM.

POWER TRANSMITTING MECHANISM.

APPLICATION FILED DEG-27, 1904.

2 SHEETPr-SHEET 2.

INVENTOR 7 W; 21% ATTORNEY WITNESSES yQQQYMMWM.

UNITED STATES, PATENT ()FFICE.

FITZROY M. sLocUM, or ERIE, PENNSYLVANIA, ASSIGNOR or ONE-HALF TO HARRY v. ASHBY, or ERIE, PENNSYLVANIA.

POWER-TRANSMITTING MECHANISM.

Specification of Letters Patent.

Patented Sept. 19, 1805.

Application filea December 27,1904. Serial No. 33,39

l.'0 all whom it may concern.

Be it known that I, FITZROY M. SLocnM, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsyl- Vania, have invented new and useful Improvements in Power-Transmitting Mechanisms, of which the following is a specification.

This invention relates to power-transmitting mechanisms; and it consists in certain I improvements in the construction thereof, as

will be hereinafter fully described, and pointed out in the claims.

In a general way the invention consists of means for converting reciprocating movement into rotary movement, particularly a continuous rotary movement.

The invention is illustrated in the accompa nying drawings as follows:

Figure 1 shows a section on the line l l in Fig. 2; Fig. 2, asection ontheline 2 2 in Fig. 1. Fig. 3 shows an enlarged cross-section of a fragment of the device on the line 1 1 in Fig. 2. Fig. 4 shows an enlarged view of a fragment of the device on the line 2 2 in Fig. 1.

The device is mounted on a base A, from which extend the sides A, forming a casing for the principal parts of the mechanism. Boxes a are arranged in the sides A, and the shaft B is arranged in these boxes. Gears C are mounted on the shaft B. They are preferably beveled gears and have opposing faces. These gears operate on the opposite sides of the pinion D.

It is manifest that as the pinion D is rotated the gears C are rotated in opposite directions. In carrying out my invention, therefore, these gears are engaged alternately by a reciproeating bar. One of the uses to which this mechanism is put is the propulsion of boats. Where it is so used, the speed given to the pinion D is not sufficient with gears C of convenient size. It is desirable, therefore, to get additional speed by additional gears. This is accomplished in the mechanism shown by mounting the gear E on the shaft d, the shaft (Z being fixed with the pinion D and journaled in the boxes a a in the base A. The gear E meshes the gear F of smaller diameter than the gear E. The gearF is mounted on the shaft f. 5 The shaft is journaled in boxes a a An operating-lever G is mounted on the shaft B. It is provided on its opposite sides with the pivotally-mounted dogs H. These dogs are provided with the gripping-surfaces it, which engage the annular gripping-surfaces c on the gear G. The upper edges of the dogs are provided with the notches'ir', in which are arranged the springs H. The springs H are mounted on the pivot-pin if, the upper ends of thesprings entering a cam-slot k in the cam-slide H The springs press the dogs into engagement with the gripping-surfaces c. The cam-slides are arranged so that the gripping-dog on one side is arranged to drive the gear in one direction, while the grippingdog on the other side drives the gear in opposite direction. (See Fig. 2.) By moving the cam-slide H the dogs are reversed through the action of the springs, the cam-slots 7& throwing the springs for this purpose. It will be noted that as the lever is reciprocated the dogs grip alternately the gears, first one on one side and then on a reverse movementv of the lever the gear on the opposite side. Thus the pinion D is actuated first by one gear and then by the opposite gear 0, so as to drive it continuously in one direction, and the operating-lever Gr, whether moved in one direction or the other, always effects this result, and the direction of rotation may be reversed through the action of the reversing cam-slot It will be noted that the dogs are pivoted near the center of their gripping-surfaces. They are mounted on' the operatinglever between the gears, so that the gears in a measure house the dogs. This manner of mounting and operating the dogs makes the structure very compact, which is desirable with many of the uses to which it is adapted. A cam-plate H is mounted on the bar H Which is carried by the slides la The bar extends upwardly through an ear 9 at the upper end of the lever. A spring if is tensioned between this gear and the shoulder It on the bar. The purpose of this is to keep the dogs in position to act normally to drive the gear in one direction. When it is desired to reverse this direction, the bar H is raised and is held in its upper position during the reverse movement. Across-handle G is preferably provided for the lever, so asto conveniently force power upon it.

I am aware that beveled gears operating upon a common pinion have heretofore been used, these beveled gears being driven through a spur-gear mechanism, the spur-gear mechanism being operated by reciprocating the lever.

ing the position of the dogs to reverse the direction of movement of the gears.

2. In a power-transmitting mechanism, the

combination of the op positely-faced gears C C; the pinion D mounted between said gears and in mesh therewith; the rock-lever G mounted concentrically with the gears C and between said gears; the dogs H mounted on the rocklever and adapted to engage said gears alternately said dogs being between the gears and housed thereby; springs for forcing said dogs into engagement; and means mounted on said rock-lever for reversing the position of the dogs to reverse the direction of movement of the gears.

3. In a power-transmitting mechanism, the combination of oppositely-faced gears C C; the pinion D mounted between them and in mesh therewith; the rock-lever G mounted concentrically with the gears O; the dogs H mounted on the rock-lever and adapted to engage said gears alternately; springs for forcing said dogs into engagement; the cam-plate H having cam-slots therein engaging said springs for reversing the action of the dogs.

4. In a power-transmitting mechanism, the combination of oppositely-faced gears C C; the pinion D mounted between them and in mesh therewith; the rock-lever G mounted concentrically with the gear C; the dogs H mounted on the rock-lever and adapted to engate said gears alternately; springs for forcing said dogs into engagement; the cam-plate H having cam-slots therein engaging said springs for reversing the action of the dogs; the operating-bar H and a spring for normally holding the operating-bar in one position.

5. In a power-transmitting mechanism, the combination of the beveled gears G opposingly faced having the annular gripping-surfaces 0 thereon; the pinion D arranged between the gears C and in mesh therewith; the rock-lever G mounted concentrically with the gears C; the dogs H pivotally mounted on said rocklever, each having the two gripping-surfaces h arranged to engage the gripping-surfaces 0,- the springs H adapted to act upon said dogs; the cam-plate H having the cam k operating upon said springs to reverse the dogs; and the bar H carrying the cam-plate.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

FITZROY M. SLOCUM.

Witnesses:

H. C. LORD, M. G. SULLIVAN.

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