US767866A - Variable-speed and reversing gear. - Google Patents

Description

No. 767,866. PATENTED AUG. 16, 1904.

. J. G. BUSOHE.

' I VARIABLE SPEED AND REVERSING GEAR.

, APPLICATION FILED APR. 19, 1904. N0 MODEL. 2 SHEETS-SHEBT 1.

INVENTOR 70in CfBuscfie A TTORN No. 767,866. PATENTED AUG. 16, 1904. J. O. BUSGHE.

VARIABLE SPEED AND REVERSING GEAR.

APPLIUATION FILED 12.19, 1904. n'o'monm. 2 SHBETSSHEET.2.

WITNE$8E8r I INVENTOI? cf"&

@ By I ATTORNEYS UNITED STATES Patented August 16, 1904.

PATENT OFFICE.

VARIABLE-SPEED AND REVERSING GEAR.

SPECIFICATION forming part of Letters Patent No. 767,866, dated August 16, 1904.

Application filed April 19, 1904:. Serial No. 203,867. (No model.)

To a whom it may concern.-

Be it known that I, J OHN C. BUSOHE, a citi- Zen of the United States, and a resident of Turtlecreek, in the county of Allegheny and State of Pennsylvania, have invented a new and Improved Variable-Speed and Reversing Gear, of which the following is a full, clear, and exact description.

The invention relates to the transmission of power from a driving member to a part to be driven; and its object is to provide a new and improved variable-speed and reversing gear arranged to permit convenient reversing of the motion and varying of the speed in both forward and backward positions of the gear without requiring stopping of the driving member.

The invention consists of novel features and parts and combinations of the same, as will be more fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a side elevation of the improvement'. Fig. 2 is a plan view of the same. Fig. 3 is an enlarged sectional side elevation of the pinion, showing its teeth in a withdrawn inactive position. Fig. 4 is a like view of the same, showing the teeth in a projected active position. Fig. 5 is a perspective view of one of the pinion-teeth. Fig. 6 is a side elevation of the movable hub of the pinion. Fig. 7 is a cross-section of'the same on the line 7 7 of Fig. 6. Fig. 8 is a sectional side elevation of part of the face-wheel. Fig. 9 is an enlarged plan view of one of the split rings for fastening a tooth of the face-wheel in place, and Fig. 10 is a plan view of part of the web or body of the pinion.

The shafts A and B, either of which may be driven, are journaled in a suitable frame C, and on the end of the shaftAis secureda facewheel D, and a pinion E is mounted to slide on and to turn with the shaft B. The facewheel D is provided on its face with concentric rows of teeth D, D D and D, each preferably formed by spaced equidistant pins removably secured to the web of the wheel and held in place thereon by split rings D", (see Figs. 1, 8, and 9,) engaging annular grooves in the teeth and abutting against the under side of the web of the wheel D, as plainly indicated in Fig. 8.

The pinion'E consists, essentially, of a hub E, mounted to turn with and to slide lengthwise on the shaft B, a web or body E and teeth E mounted to slide radially in suitable guideways in the web E to permit of projecting the teeth beyond the peripheral face of the web E (see Figs. 1 and 4,) so as to move the teeth E in mesh with the teeth of any one of the concentric rows D, D, D", or D. The teeth E are adapted to be withdrawn within the body E (see Fig. 3) to move the teeth out of mesh with the corresponding teeth D, D D or D to allow convenient shifting of the pinion E on its shaft B across the face of the face-wheel D preliminary to varying the speed or reversing the motion, as hereinafter more fully explained.

In order to move the teeth E radially in or out, as above mentioned, the hub E is provided with an annular groove having beveled parallel side walls E and E engaging correspondingly-beveled sides of a tongue E on the lower or inner end of each tooth E, so that when the teeth F are in a withdrawn position, as shown in Fig. 3, and the body E is held against-lengthwise movement and the hub E is moved lengthwise on the shaft B from the left to the right then the beveled side wall E acts on the tongue E to slide the teeth E radially outward in their guideways in the web E to protect the teeth E beyond the peripheral face of the web E as illustrated in Fig. 4. When it is desired to withdraw the teeth E then the motion of the hub E is reversed that is, it is moved from the right to the left so that the beveled side wall E" acts on the several tongues E to push the teeth E inward into a withdrawn position, as illustrated in Fig. 3.

In order to engage the beveled side wall with the tongues E, the said side wall is somewhat larger in diameter than the side wall 1*? to readily engage the innermost ends of the tongues E. When the teeth E are in a withdrawn position, as shown in Fig. 3, then the pinion E can be bodily shifted lengthwise on the shaft B to bring the pinion in register with any one of the rows of teeth I), D I), or D" on either side of the axis of the wheel I), it being understood that the shaft B extends diametrically across the face, as shown in Fig. 2, and the peripheral face of the web E is immediately above the terminals of the teeth I), D 1), and D.

In order to allow of shifting the pinion E bodily on the shaft B, as described, the following device is provided: In the web is arranged an annular groove E, engaged by a shifting fork F, integral with a sleeve F, mounted to slide lengthwise on a bar G, attached to the frame U and extending above the shaft B parallel therewith and in the same vertical plane. In the bar (I are formed sets of notches G and (i adapted to be engaged by a locking-pin H, mounted to slide in the sleeve F and under the control of the operator manipulating a lever H, fulcrumed on the sleeve and connected with the locking-pin H. By the operator pressing the lever H against the tension of a spring H the pin H is withdrawn from a notch Ur to allow the operator to shift the sleeve Flengthwise on the bar G, so that the shifting fork F carries the pinion E along until the pinion stands in register with the corresponding row of teeth I), D, D", or D on the desired side of the axis of the wheel D, and then the operator releases the lever H, so that the pin H engages the corresponding notch in the set of notches G or G to hold the shifting fork F, and consequently, the pinion E, against lengthwise movement.

In order to shift the hub E relative to the web E, as previously explained, the outer end of the said hub is provided with an annular groove E, engaged by a shifting lever I, fulcrumcd on the sleeve F and under the control of the operator, the shifting lever I having a hand-lever I for locking the lever I on a notched segment I, carried by the sleeve F.

When the teeth Eare projected and in mesh with one of the concentric rows of teeth D, D D, and D" and it is desired to shift the pinion E, then the operator first manipulates the lever I to impart a sliding motion to the hub E for moving the teeth E into a withdrawn position, as above described and shown in Fig. 3, the hub E then being locked against lengthwise movement relative to the web E by the hand-lever I engaging the correspondihg notch in the segment I. The operator now presses the lever H to withdraw the locking-pin H from the corresponding notch in the set of notches G or G and then the operator pushes the sleeve F lengthwise on the bar Gr to move the pinion E lengthwise on its shaft B until the pinion stands in register with the desired row of teeth D, D, D", or D and on the desired side of the axis of the wheel D. When the desired position has been reached, the operator releases the lever H, thus engaging the pin H with the corresponding notch in the set of notches G or i to hold the sleeve F, and consequently the web E and its teeth E against lengthwise movement. The operator now swings the lever I back to the former position, so as to project the teeth E beyond the peripheral face of the web E' to move the teeth in mesh with the corresponding row of teeth D, D D or D".

It is understood that when the shaft A is the driving-shaft and the pinion E is in mesh with the row of teeth Dsay from the righthand side of the axis of the wheel D, as shown in Figs. 1 and 2then a rotary motion is transmitted by the wheel I) and pinion E to the shaft B at a high rate of speed, the shaft turning in a forward direction. WV hen the pinion E is shifted from the right to the left in mesh with any one of the rows of teeth D D or D on the right-hand side of the axis of the wheel D, then the shaft B is still rotated in the same forward direction, but at a correspondingly-lower rate of speed; but when the pinion E is shifted to the left of the axis of the wheel D in mesh with any one of the rows of teeth D", D, D or D then the motion of the shaft B is reversed and rotated at a corresponding rate of speed, according to which of the concentric rows of teeth 1), D D or D the pinion E is moved in mesh with.

Having thus described my invention, I claim as new and desire to secure by Letters Patent-- 1. A variable-speed and reversing gear, comprising a face-wheel having concentric rows of pins removably secured to the web of the wheel, means for holding the pins in place,

and a pinion adapted to mesh with either of said rows of pins.

2. A variable-speed and reversing gear, comprising a face-wheel having concentric rows of pins removably secured to the web of the wheel, split rings engaging annular grooves in the pins and abutting against the under side of the web of the wheel to hold the pins in place, and a pinion adapted to mesh with either of said rows of pins, on either side of the axis of the face-wheel.

3. A variable-speed and reversing gear, comprising a face-wheel having concentric rows of teeth each formed of pins removably secured on the web of the wheel, means for holding the pins in place, a shaft extending across the face of the wheel, and a pinion mounted to turn with and to slide on the said shaft and adapted to mesh with either of said rows of teeth.

4. A variable-speed and reversing gear, comprising a face-whecl having concentric rows of spaced pins secured on the web of the wheel, means for removably holding the pins in place, a shaft extending across the face of the wheel, and a pinion mounted to turn with and to slide on the said shaft and adapted to mesh with IIO . sisting of a body or web, teeth movable in the body whereby they can be moved in or out of. mesh with the teeth on the face-wheel, and a hub movable relative to the body and control ling the movement of the teeth.

6. A variable-speed and reversing gear, comprising a face-Wheel having concentric rows of teeth on its face, a shaft extending across the face of the wheel, and a pinion adapted to mesh with either row of teeth on the facewheel, the said pinion consisting of a hub mounted to slide on and to turn with the shaft, a web, and teeth mounted to slide raldiallly in theweb and controlled by the said 111 7. A gear-wheel or pinion having a body, a hub slidable relative to the body, and radiallymovable teeth controlled by the movement of the hub. p

8. A gear-wheel or pinion, comprising a body, a hub slidable relative to'the body and having an annular groove with beveled side walls, and teeth mounted to slide radially in the body and having tongues formed with beveled sides adapted to be'engaged by the said side walls of the groove.

9. .A gear-wheel or pinion comprising a web, a hub slidable relative to the web, and teeth mounted to slide radially in the said web, to project the teeth beyond the face of the said web or to-withdraw the teeth withinthe'web, the radial movement of the teeth being controlled by the said hub.

10. A gear-Wheel or pinion comprising a web, a hub slidable relative to the web, teeth mounted to slide radially in the said web, to project the teeth beyond the face of the said web or to withdraw the teeth within the web," the radial movement of the teeth being con trolled by the said hub, means for'holding the said web against lengthwise movement, and

means for moving the relative to the said web.

11. A variable-speed and reversing gear, comprising a face-wheel having concentric rows of teeth on its face, each formed of a set of spaced pins, a shaft extending diametrically across the face of the said wheel and spaced from the terminals of the said pins, and a pinion mounted to slide on and to turn with the said shaft and adapted to mesh with either set of pins on either side of the axis of the fac'e-wheel, the said pinion consisting of a hub mounted to slide on and to turn with the said shaft, a web, teeth mounted to slide said hub lengthwise radially in the said Web and controlled by the said hub, means under the control of the operator for shifting the said pinion lengthwise on the said shaft, and means under the control of the operator for shifting the said hub lengthwise relative to the said web.

12. A variable-speed and reversing gear, comprising a face-Wheel having concentric rows of teeth on its face, each formed of a set of spaced pins, a shaft extending diametrically across the face of the said wheel and spaced from the terminals of the said pins, and a pinion mounted to slide on and to turn with the said shaft and adapted to mesh with either set of'pins on either side of the axis of the face-wheel, the said pinion consisting of a hub mounted to slide on and to turn with the said shaft,'a web, teeth mounted to slide radially in the said web and controlled by the said hub, means under the control of the operator for shifting the saidpinion lengthwise on the said shaft, means under the control of the operator for shifting the said hub lengthwise relative to the said web, and locking devices for the said means.v

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN G. BUSOHE.

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