US708579A

US708579A - Driving-gear.

Info

Publication number: US708579A
Application number: US7719701A
Authority: US
Inventors: John Nutry
Original assignee: CARL P LENK
Current assignee: CARL P LENK
Priority date: 1901-10-01
Filing date: 1901-10-01
Publication date: 1902-09-09
Anticipated expiration: 1919-09-09

Description

(No Model.)

mini-.1.

WITNESSES:

W @(Qa' DRIVING GEAR.

(Application filed Oct. 1, 1901.)'

Patented Sept. 9, I902.

3 Sheets-Sheet I.

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SILT III;

THE NORRIS PEYERS cu, PHQTQLITMQ. WASHINGTON. 0.1:.

INVENTOH $4M YM ATTOR N EYS No. 708,579. Patnted Sept. 9, I902.

J. NUTRY.

DRIVING GEAR.

(Application filed Oct. 1, 1901;) (No Model.) 3 Sheets-Sheet 2.

ATTORNEYS THE uoms PETERS cu, wow-urns" WASNINGTON. a. c

No. 708,579. Patented Sent. 9. I902. J. NUTBY.

DRIVING GEAR.

(Application mm on. 1, 1901.]

(No Model.) 3 Shaejs-Sheet 3.

Wig. 5.

ATTOBN EYS THE NORRIS PETERS co. Pnoruumu, \wxsmucrou, u. c.

' NrrE STATES ATENT FFICE.

JOHN NUTRY, OF MIDLANDPARK, NEW JERSEY, ASSIGNOR OF TWO-THIRDS TO CARL P. LENK AND RUDOLPH LENK, OF NEW YORK, N. Y.

DRIVING-G EAR.

SPECIFICATION forming part of Letters Patent No. 708,579, dated September 9, 1902.

Application filed October 1, 1901.

T 66, whom it may concern:

Beitknown that I, JOHNNUTRY, acitizen of the United States, residing in Midlandpark, Bergen county, State of New Jersey, have invented certain new and useful Improvements in Driving-Gear, of which the following is a specification.

My invention relates to driving-gears, and has for its object to provide means for converting reciprocating into rotary motion in such a manner that While the driving part reciprocates continuously without a change of speed the rate of speed of the driven rotarypart may be varied during its movement and that, if desired, the rotary part may be stopped altogether,whilothe driving part continues to reciprocate. Such a device is of particular use in its application to automobiles, since in these it is often desirable to have the motor run continuously even while thecarriageisstopping. Myinvention therefore provides a convenient means not only of starting and stopping the automobile, but of changing the speed thereof Within certain limits, and the change of speed is gradual. A further advantage is that the stopping of the driven part is preceded by a gradual decrease of the speed, thus avoiding injury to the mechanism, such as might result from a too sudden stoppage. Of course the mechanism is applicable to other constructions also, as to marine engines.

Reference is to be had to the accompanying drawings, which show one embodiment of my invention, and in which Figure 1 is a plan of part of the mechanism, showing principally the driven shaft and its direct connections. Fig. 2 is a crosssection on the line 2 2 of Fig. 1. Fig. 3 is a sectional elevation on the line 3 3 of Fig. 2. Fig. 4 is an elevation on the line 4 4 of Fig. 3. Fig. 5 is a face view, and'Fig. 7 a side view, of a member of the intermittent grip mechanism employed in the construction shown. Figs. 6 and 8 are respectively a face view and a side View of the other member of the intermittent grip device, and Figs. 9 and 10 are side elevations showing the entire mechanism in two different positions.

A is a reciprocating r0df0r instance, the

Serial No. 77,197. (No model-l piston-rod of a steam-engine or hydrocarbonengine. This rod is guided in any suitable way, as by means of a cross-head B and slideways 0.

To one end of the reciprocating red. A are pivotally joined connecting-rods D, each of which drives an intermittent grip device. While I do not wish to limit myself to any particular construction of the intermittent grip device, I have illustrated what. I consider to be a very satisfactory form of such device. This device consists of a driving member E in the shape of a ring, from which extends an arm E, ha"ving a radial slot E At the outer end of said slot is an enlargement E for a purpose to be stated hereinafter. Into the slot E extends a pin D at the end of the connecting-rod D, and with this pin is also connected a link F, supported at its other end upon a carrier G by means of a pivot G. This carrier and the pivot G are normally stationary, so that the pivotjoint D will swing in the arc of a circle the center of which is at G. Consequently when the rod A is reciprocated the ring E will be given an oscillating motion. This ring surrounds a clutch member H, which is rigidly seoured to the driven shaft I and is recessed to receive rollers K in such manner that the radial arms between the recesses engage the ring E. These rollers are adapted to drive the shaft by engaging shoulders H on the clutch member H; but until the rollers engage the said shoulders no driving action occurs. The space between the inner surface of the ring E and the inner Wall of the recess of the clutch member H is such as to allow the rollers K to travel circumferentially a small distance Without exerting any driving action, while avoiding superfluous play. If only the ring E and the said clutch member were provided in connection with the rollers K, the clutch member would be driven in both directions. As it is desired, however, to give the shaft rotation in the 5 same direction, I provide means for preventing the rollers K from operatively engaging one of the shoulders H. This means consists of a disk J, having pins J, which project into the recesses of the clutch member If I00 and are adapted to take a position such as indicated at a in Fig. 4, which keeps the rollers K away from one of the shoulders H of each recess. Thus in the position shown in Fig. 4 the shaft I will be driven only in the direction indicated by the arrow, and when the ring E turns in the opposite direction it will simply slip overthe rollers K without driving the shaft. To one end of the clutch member H, I secure a face-plate H which serves partly as a guide for the ring E and, further, as a means for preventing an endwise movement of the rollers K. If the disk J and pins J always occupied the same position relatively to the clutch member H, the shaft I would always be driven in the same direction. As, however, it is often desirable to reverse the shaft, I provide the following arrangement: The disk J has a sleeve extension J which extends over a sleeve extension H of the clutch member H. This sleeve member J is provided with an oblique slot I J and the sleeve member H has a longitu-' dinal slot H In both of these slot-s extends a pin or screw L, which is secured to a shifting sleeve L, surrounding the sleeve portion J A collar M, rigidly secured to the shaft I, as by a set-screw M, prevents endwise movement of the sleeve J It will. be obvious that when the shifting sleeve L is moved toward the right from the position shown in Fig. 3 the sleeve itself will move lengthwise only, since it engages, through the medium of its screw L, the longitudinal groove H of the sleeve H which latter is rigid with the shaft I. The pin or screw L, moving lengthwise, will by its engagement with the walls of the oblique slot J turn the disk J relatively to the shaft I and will thus bring the pins J to the other side of the recess in the clutch member H. As a result of this changed position the rollers K will become operative to drive the clutch member H and the shaft I in the opposite direction. Preferably the clutch member H has enlargements H at the peripheral portions of its recesses to receive the pins J, so that they will not be in the way of the rollers K when the latter engage the shoulders H.

If only one driving-ring E were provided, the shaft I would be rotated in either direction, as desired, but the rotation would be an intermittent one. To secure a continuous rotation, I provide a duplicate arrangement of parts, as shown, and it will be obvious from Fig. 10 that as the rod A moves forward one of the rings E will turn in a clockwise direction and the other ring E contra-clockwise. It follows that the clutches of the two halves of the mechanism should be so constructed that their driving periods will alternate-that is, one driving-ring should be operative during the outward stroke of the rod A and the other driving-ring should be operative during the inward stroke of the rod A. WVhen 63 the shaft is to be reversed, the two shifting sleeves L should of course be moved in unison. This may be accomplished, as indidicated in Figs. 1 and 2, by means of a shifting-lever N, fulcrumed at N to swing lengthwise of the shaft I and having two forked members, each of which is again forked, as at N N, and provided with suitable engaging devices which enter the customary groove of the shifting sleeve L.

So far as described the mechanism converts reciprocating motion into rotary motion and also allows the direction of the rotary motion to be reversed without interrupting the reciprocating motion. It is further desirable, as pointed out at the beginning of this specification, that provision should be made for changing the speed while the mechanism is in motion and for even stopping the shaft I altogether while the motor which drives the reciprocating rod A continues running. For this'purpose I provide the mechanism shown fully in Figs. 9 and 10. 'According to this construction the carriers G, which have the fulcrums G for the links F, are adjustable, so that the pivot joints D may be brought nearer to or farther from the shaft I. It will of course be obvious that the nearer the said pivot-joints are to the shaft the greater will be the angular movement of the driving-rings E, and consequently the greater the speed of the shaft I. Fig. 10 shows a position in which a fairly high .rate of speed is obtained, it being understood that the greatest speed corresponds to the innermost position of the pivot-joints D. The length of the slot E is so proportioned to the length of the connecting-rods D that when the pivot-joints D are moved to the outer ends of said slots the two connecting-rods will extend substantially in alinement with one another during a portion of the stroke of the rod A, as shown in Fig. 9. It will be obvious that the reciprocating movement of the rod A would impart but a very slight oscillating motion to the rings E in this position. To enable the shaft I to stop altogether when the parts are in the position illustrated by Fig. 9, I provide the enlargements E at the outer ends of the slots E these enlargements being of sufficient width to allow the pins D to swing slightly without operating the driving-rings E. Thus it will be understood that in the position illustrated by Fig. 9 the connecting-rods D and links F move slightly; but the driving-rings E remain stationary. As a means for adjusting the carriers G, I may provide a speed-changing lever O, fulcrumed at O and connected by links P with pins P,sliding in longitudinal slots Q of a suitable stationary part Q. The pins P also engage longitudinal slots G in the carriers G, which latter are pivoted to the stationary part Q at G It will be obvious that simply throwing the lever O to one side or the other will change the position of the carriers, and consequently alter the speed of the driven shaft I, as has been explained above. It will also be obvious that this movement of the carriers G may be effected while the mechanism is in motion, and thus my invention possesses an advantage which is very valuable, especially in the case of automobiles and marine engines.

It will be seen that my invention provides means for driving a rotary shaft at any desired rate of speed, according to the requirements of the load or according to the strain upon the driven part, and thus a considerable saving of power may be effected, owing to the ready adaptation of the speed and power to the varying conditions, as when an automobile is traveling along hilly roads. The advantage of beingableto stop the driven shaft while the motor continues running will be obvious, especially with reference to the employmentofexplosive-engines Similarly the advantage of being able to control the speed gradually while the engine is in motion and of reversing the driven part will be evident, especially when it is considered that the stoppage of the driven part is compulsorily preceded ,by a gradual slackening of speed. While I have shown a double intermittent grip mechanism the sections of which work alternately, in some cases it might be sufficient to provide only one such mechanism, in which event the inertia of the parts connected with the driven shaft, as fly-wheels, will be relied upon to continue the rotation of the shaft between successive impulses. It is of course preferable, however, to provide a double arrangement by which a practically continuous driving action is assured.

it \Vhile the driven part-that is, the shaft Iis preferably stopped gradually by the use of the speed-controlling lever O, as described, I may in an emergency disconnect the shaft suddenly from the motor by shifting the reversing-lever N to an intermediate position, in which the pins J will hold the rollers K from clamping contact with either of the inclines H of the clutch member H.

I desire it to be understood that where in the claims I speak of a reciprocating driving member (the rod A in the specific constrnction shown) I do not wish to be understood as limiting myself to a part reciprocating in a straight line, but I desire to include under this term any part which will have the function describedthat is, a part which will move alternately toward and from the driven part.

Having fully described my invention, I claim and desire to secure by Letters Patent- 1. The combination of a reciprocating driving member, a driven part mounted to turn, a driving part mounted to oscillate about the axis of the driven part and provided with an outwardly-extending guideway, an intermittent grip device forming a driving connection with said connecting mechanism'at the adjustable member thereof, and an adjustable carrier on which said link is fulcrumed.

2. 'lhe'combination of a reciprocating driving member, a driven part mounted to turn, a driving part mounted to oscillate about the axis of the driven part, and provided with an outWardly-extendiug guideway, an intermittent grip device forming a driving connection between said oscillating driving part and the driven part, connecting mechanism comprising an adjustable member arranged to slide along the guide'way of the driving part, a link pivotally connected with said connecting mechanism at the adjustable member thereof, a normally stationary carrier on which said link is fulcrumed, said carrier being pivoted to a stationary part, and a speed-controlling lever for adjusting the carrier on the pivot.

3. The combination of a reciprocating driving member, a driven part mounted to turn, a connecting mechanism from the driving member to the said part, the latter being provided with a guideway on which said connecting mechanism is adjustable, the said guideway being arranged substantially radially with respect to the axis of the driven part, and having at its outer portion a lateral extension on which said connecting mechanism may move when in its outer position, said mechanism being adjustable on the driven part from its outer position at which the driving member moves without affecting the driven part, to a maximum of rotary speed of the driven part, and means for adjusting said connecting mechanism.

4. The combination of a reciprocating driving member, a driven part mounted to turn, a driving part mounted to oscillate about the axis of the driven part and provided with an outwardly-extending guideway terminating in a lateral extension, an intermittent grip device forming a driving connection between said oscillating driving part and the driven part, connecting mechanism from the reciprocating driving member to the oscillating driving part, said connecting mechanism comprising an adjustable member arranged to slide along the guideway of the oscillating driving part and the lateral extension thereof and to reciprocate longitudinally along said lateral extension, a link pivotally connected with said connecting mechanism at the adjustable member thereof, a normally stationary carrier on which said link is fulcrumed, 'said carrier being pivoted to a stationary part, and a speed-controlling lever for adjusting the carrier on the pivot, and adapted to move the adjustable member of the connecting mechanism along the guideway of the driving part and into engagement with the in a lateral extension, extending at an angle to the main portion of said guideway an intermittent grip device forming a driving connection between said oscillating part and the driven part, connecting mechanism from the reciprocating driving member to the oscillating driving part, said connecting mechanism comprising an adjustable mcmberarranged to slide along the guideway of the oscillating driving part and the lateral extension thereof and to reciprocate longitudinally along said lateral extension, and an adjustable support for said adjustable member.

6. An intermittent grip device com prising a driving-ring, a clutch member, having a hub projected therefrom, a plurality of rollers between the driving-ring and the cl ntch member, pins projecting on each side of said rollers so as to limit the motion of said rollers, a plate-disk from which said pins project, a sleeve upon which said disk is mounted and'capable of a partial movement of rotation about the axis of said grip device, but incapable of longitudinal movement along the same, said sleeve being provided with an oblique slot, a pin adapted to move longitudinally in a groove in the hub of said clutch member and to engage the walls of said ohlique slot in said sleeve, and means to move said pin longitudinally along said. hub and thereby to rotate said sleeve and the disk thereon and to vary the position of the pins within said recesses and the movement of the said rollers.

'7. An intermittent grip device comprising a driving-ring, a clutch member provided with a plurality of arms which contact with the driving-ring and between which are recesses, the inner walls of which consist of inclined planes, a plurality of rollers Within said recesses and adapted to engage the inner surface of the driving-ring, and means for preventing the engagement of the rollers with the driving-ring during movement of the lat-- ter in one direction.

JOllN NUTRY. \Vitnesses:

CARL P. LENK, JOHN L'oTKA.