US841362A

US841362A - Lever mechanism.

Info

Publication number: US841362A
Application number: US26372305A
Authority: US
Inventors: Allie R Welch; Fred Stimson Welch
Original assignee: Individual
Current assignee: Individual
Priority date: 1905-06-05
Filing date: 1905-06-05
Publication date: 1907-01-15
Anticipated expiration: 1924-01-15

Description

PATENTED JAN. 15, 1907.-

A. R. & F. S, WELCH. LEVER MECHANISM.

APPLICATION FILED JUNI-15,1905.

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PATENTED JAN. 15, 1907; A. E. E E. s. WELGE. LEVER MEGEANISM. APPLICATION FILED JUNE. 1905.

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No. 841,362. PATENTBD JAN. 15, 1907.

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LEVER MEGHANISM. APPLIGA-TION FILED TUNE 5.1905.

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ALLIER. VELCH AND' FRED STIMSON VELCH, OF PONTIAC, MICHIGAN.

LEVER IVIECHANISNI.

Specification of Letters Patent.

Patented Jan. 15, 1907.

. Application filed .Tune 5,1905. Serial No. 263,723.

To LZZ whom it may concern:

Be it known that we, ALLIE RAY WELCH and FRED S'riMsoN WELCH, both citizens of the United States, residing at Pontiac, county of Oakland, State of Michigan, have invented a certain new and useful Improvement in Lever Mechanism and we declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to lever mechanism for change-speed gears for automobiles; and it consists in the improvements hereinafter described, and pointed out in the claims.

In the drawings, Figure l is a plan view of the gear-casing and a gear embodying our invention therein, the latter` being shown in section, the upper part of the gear-casing being removed, Fig. 2 is a section on the line 2 2 of Fig. 1. Fig. 3 is an elevation of one of the clutch-surfaces hereinafter described. Fig. 4 is an elevation showing the construction of the frictional clutch used. Fig. 5 is a section on the line 5 5 of Fig. 1. Fig. 6 is a side elevation of the operating-levers and connecting-rods which shift the gearing to obtain the dierent speeds. Fig. 7 is an elevation of one face of the gear-wheel C, illustrating the connection of the spiral tube c therewith.

A is the gear-casing, B is the driving-shaft, C is the driven shaft, and D is a counter-shaft. The shafts B 'and C are axially in line with eah other and are telescoped together at the en B' is a sleeve normally adapted to rotate upon the shaft B.

B2 is a gear-wheel keyed 'upon the sleeve B.

B3 is a friction-clutch adapted to engage the sleeve B with the shaft B.

B4 is a ring secured upon the shaft B adj acent to the clutch B3.

B5 is a ring secured upon the shaft B adjacent to the clutch C, hereinafter described.

B6 is a ring secured upon the shaft B, so as to move longitudinally thereof, but restrained from turning with reference thereto. The inner surfaces of the rim of the ring BG are shaped to form cams.

b4 is one of the three bell-crank levers pivoted upon the ring B* and adapted to operate the clutch B3.

b5 is one of three bell-crank levers pivoted upon the ring B5 and adapted to operate the clutch C4. Said bell-crank levers have arms extending horizontally and are so constructed and pivoted that centrifugal force shall tend to draw them away from the clutchdisks.

The ring B acts upon said bell-crank lever b4 when moved in a direction to operate one of said clutches and upon the other of said bell-crank levers when moved in the other direction to operate the other of said clutches, and for this purpose it is provided with an internal annular cone surface adapted to pass outside of and contact said horizontal arm.

C is a gear-wheel revoluble upon the shaft C and having its inner face formed with engaging teeth.

c is a spiral tube the inner end of which communicates with an aperture leading to the joint between the shafts B and C. The outer end of said spiral tube is adapted to swing into the oil contained in the casing and take up a portion of said oil and convey it to the joint ,in the well-understood manner.

C2 is a gear-wheel normally adapted to rotate upon the shaft C and having its inner face provided with clutching teeth or projections of the form indicated in Fig. 3.

C3 is a disk keyed upon the shaft C, but adapted to slide longitudinally thereof, and provided with clutch teeth on both of its surfaces.

c3 is a' forked lever engaging the disk C3 and adapted to move it longitudinally of the shaft C'. Vhen the disk C is moved up toward the gear-wheel C2, said gear-wheel is locked to the shaft C, and when said disk is moved in the other direction the gear-wheel C is locked to said shaft. The clutches are of the multipledisk friction type, the disks being fitted upon a non-round portion of the shaft and having projections at their outer ends adapted to fit into grooves in the inner side of the fiange of the casing, as indicated most distinctly in Fig. 4.

G is a shaft adapted to turn in a bearing upon the casing A.

G is a double-armed lever secured to the shaft G'.

G2 is a lever-arm upon the shaft G and ada ted to turn relative thereto.

GI; is a lever by which the shaft G may be turned by the hand of the operator.

g is a connecting-rod pivoted to the end 0f IOC IOS

the lever G2 and to a ring g, adapted to slide upon the lever G3.

The lever-arm G2 may be set to different angular positions by adjusting the ring g to E is a shaft pivoted in the casing A and having an arm c2 attached thereto, which operates the disk C3.

H2 is a link havino a slot H4, through which passes the shaft E, and a slot H5, through which passes the shaft F. The link H2 is adapted to slide longitudinally upon the shafts E and F, being guided by the walls of the slots H2 and H5.

E is a crank upon the end of the shaft E and having in its end remote from said shaft the pin E2.

H6 is a slot in the link H2, adapted to slide over the pin E2 without altering the angular` positions of the lever E.

H7 is an enlargement of the slot H6, having walls k7 branching out at an angle from the walls of the slot H6.

H8 is a block adapted to slide vertically in the enlargement H7 of the slot H6. The end of the block Hs which is toward the shaft E is shaped to have sides or walls .parallel to the wall k7. When the block H8 is at the top of the enlargement H7, as indicated at Fig. 6, a wall of said block and one of the walls k7 form together a downwardly-extending prolongation of the slot H6. When said block is at the bottom of said enlargement, the corresponding Walls form an upwardly-extending prolongation of the slot H6.

H10 is a lever pivoted at H11 and connected with the block H8 at one end by a connecting rod or link H1. At the other end the lever H1o is connected to one end of the lever-arm G2. When the lever-arm G2 is at its lowest position, the block H8 is at its upper position, and when said ring is at its upper posiy tion the block H8 is at its lower position. At

an intermediate position the block Hs will be midway in its travel and will prevent the pin E2 from moving out of the slot H11.

H is a connecting-rod pivoted to the upper end of the lever G, passing through a lug H3 and provided with a nut H12 at its outer end and spring H12 between said lug and said nut.

H15 is a nut upon the connecting-rod H, which limits the movement of the connecting-rod through the lug H3 in a direction away from the lever G.

D is a gear-wheel upon the counter-shaft D, the teeth of which mesh with the gearwheel B2 on the sleeve B of the shaft B.

D2 is a gear-wheel, smaller than D, upon the counter-shaft D, the teeth of which mesh with the teeth of the gear-wheel C2 upon the shaft (l. Y

D3 is a gear-wheel keyed upon the counter-shaft D and engaging, hrough a gearwheel D4, Fig. 2, with the gear-wheel C.

The operation of the above-described device is as follows: lf the lever Gi1 is turned toward the right, as shown in Fig. 6, the crank- H22 is moved to the left, turning the shaft F 'in the direction of the hands of a watch and engaging the shaft B directly witiL the shaft G by means of the clutch (V11. During this motion the link H2 is pressed toward the right, bringing the shafts F and E and the pin E2 at the left ends of the slots H5, H2, and H6. In this position the shaft E and the disk C2, Fig. 1, is held in its intermediate position, and both the gear-wheels C C2 are free to rotate relative to the shaft C. The shaft B is then bound directly to the shaft C, and all the gear-wheels 'that are in mesh are free to turn in their respective shafts, so that the driving-shaft is connected directly to the driven shaft and a high speed is secured; lf the lever G3 is turned in the opposite direction-that is, to the left, as shown in Fig. hthe arm H22 is moved toward the right, binding the sleeve B to the shaft B. (See Fig` 1.) With the block H8 in the position shown in Fig. 6, the link' H2 being drawn toward the left by the connecting-rod H, the pin E2 passes downward beneath said block,

turning the crank t and shaft E in the direction of the hands of a watch and causing the disk C2, Fig. 1, to engage the gear-wheel C', binding it to the shaft C. y With this connection a motion of the shaft C opposite to that of the shaft B is secured through gearwheels D2, D, D3, D2, andv C. lf the ring g is pulled upward, the block H8 is drawn to its lower position, and the pin E2 rises upward in the upward extension of the slot H6, turning the crank E and shaft E in the opposite direction to that of the hands of a clock and locking the gear-wheel C2 to the shaft C. Thus the shaft C turns in the same direction as the shaft B, but at aslower angular velocity, the motion being conveyed through the gearwheels B2, D, D2, and C2. In both of the latter cases the lever-arm`H22 is pulled to the right, binding the sleeve B to the shaft B by means of the clutch B2.

Vhat we claim is- 1. Mechanism for producing various speed combinations, comprising a lever operatively connected with said mechanism, and a part adapted to slide along said lever and connected to said mechanism so as to adjust the same to make one or the other of said combinations.

2. The combination of a shifting crank, a slidable piece adapted to move in the direction of the length of said crank, a block carried by said piece having two cam-surfaces, one or the other of said cam-surfaces being IOO adapted to act on said crank to shift the same accordingly to the position of said block.

3. The combination of a shifting crank, a piece adapted to slide in the direction of the length of said crank, said piece being provided with two opposing cam-surfaces eX- tending in the direction of its movement and diverging toward their ends, a block upon said sliding piece having cam-surfaces parallel to said diverging portion of the cam-surfaces, said block being adjustable to form an opposing surface to one or the other of the diverging portions of said cam-surfaces.

4. The combination of an operating-lever, a shifting crank, a piece adapted to slide in the direction of the length of said crank, a block upon said sliding piece having two camsurfaces, one or the other of said cam-surfaces being adapted to act upon the shifting crank according to the position of said block upon said piece, a lever fulcrumed approximately concentric with said operating-lever connected to said block so as to adjust the position of the same, and means for changing the position of the last-named lever.

5. The combination of an operating-lever, a shifting crank, a piece adapted to slide in the direction of the length of said crank, a block upon said slidingpiece having two cam surfaces, one or the other of said cam-surfaces being adapted yto act upon the shifting crank according to the position of said block upon said piece, a lever fulcrurned approximatelyr concentric with said operating-lever connected to said block so as to adjust the position of the same, and a sliding part upon the operating-lever connected with the b'loekshifting lever so as to adjust the position of y'the same.

6. The combination of an operating-lever, two shifting cranks, one of said shifting cranks being connected to said operating-lever so as always to move in the same direction with the same movement of said lever, and means actuated by said operating-lever for turning the other of said shifting cranks in one way or the other with one motion of the operating-lever.

7. The combination of an operating-lever, a shifting crank, and means actuated by said lever for turning said shifting crank in one way or the other with one motion of the oper: ating-lever.

8. The combination of an operating-lever, a shifting crank, means actuated by said operating-lever for turning said shifting crank in one Way or the other with one motion of the operating-lever, and means for adjusting the turning means to turn the shifting crank in the direction desired.

In testimony whereof we sign this specification in the presence of two witnesses.

ALLIE R. VELCH. Y FRED STIMSON WELCH.