US621858A

US621858A - Mechanical motor

Info

Publication number: US621858A
Authority: US
Publication date: 1899-03-28
Anticipated expiration: 1916-03-28

Description

- No. 621,858. Patented Mar. 28, I899.

E, A. SEWARD & J. J. JOINES. I MECHANICAL MOTOR.

(Application filed June 23, 1898.) (No Model.)

THE NORRIS vzrcns co. FHOTCMJTHQ, WASHINGTON, u. c.

No. 62l,858. Patented Mar. 28, 1899. E. A. SEW A-BD & J. J. JOINES. MECHANICAL MOTOR.

(Application filed June 28. 1898.) (No Model.)

- Nrrnn STATES PATENT Fries.

EDW'ARD ARTHUR SEXVARD AND JAMES JACKSON JOINES, OF COLUMBUS, GEORGIA.

' MECHANICAL MOTOR.

SPECIFICATION forming part of Letters Patent No. 621,858, dated March 28, 1899.

Application filed June 23, 1898.

To aZZ whom it may concern.-

Be it known that we, EDWARD ARTHUR SEWARD, a subjectof the Queen of Great Britain, and JAMEsJAcKsoN J OINES, a citizen of the United States, residing at Columbus, in the county of Muscogee and State of Georgia, have invented a new and useful Mechanical Motor, of which the following is a specification.

Our invention relates to mechanical motors adapted for driving light machinery, and has for its object to provide a simple, inexpensive, and efficient construction and arrangement of parts designed especially for use in operating fans for various purposes, the mechanism, inclusive of the operating weight,bein g mounted upon a suitable supporting-framework capable of transportation. v

Further objects and advantages of this invention will appear in the following descrip tion, and the novel features thereof will be particularly pointed out in the appended claims.

In the drawings, Figure 1 is a perspective view of a motor constructed in accordance with our invention with the parts arranged for operation in connection with a hammock suspended by the weight-supporting bar. Fig. 2 is a Vertical transverse section of the same on line 2 2 of Fig. 1. Fig. 3 is a similar view on a like plane, showing the fan-op crating drum mechanism supported by the bracket-arm, but turned to occupy a position at right angles to the plane occupied thereby in Figs. 1 and 2. Fig. 4 is a detail front view of the safety-clutch.

Similar numerals of reference indicate corresponding parts in all the figures of the drawings.

The mechanism embodying our invention consists, essentially, of a weight-supporting rod 1, flexibly connected, as by cords 2, with the spindle 3 of a compensating drum 4, said spindle 3 being mounted in bearings in a suitable supporting-frame, and said compensating drum being adapted to receive an operating-cord as it is unreeled from a fan-operating drum mechanism 5, constructed substantially as shown and described in our for mer patent, No. 596,915, granted January 4,

Serial No. 684,291. (No model.)

1898. Said fan-operating mechanism includes a flanged drum 6, to the spindle of which at one end is attached a winding-crank 7; a driving-gear S loosely mounted upon the spindle of the drum and connected-with the drum by means of ratchet mechanism, including a pawl 9 anda ratchet-wheel 10; a pinion 11, carried by a counter-spindle 12, which is mounted in the frame 13 of the fan-operating drum mechanism, and a multiplying-gear 14, also carried by said spindle 12 and meshing With a driven pinion 15, which is loosely mounted upon the spindle 6 of the drum. This driven pinion carries a crank-disk 16, which is connected, by means of a pitman 17, with a rocker 18, preferably mounted upon an extension of the counter-spindle 12, from which it willbe obvious that the forward rotation of the drum 6 will cause the multiplied communication of motion to the driven pinion 15, and hence will cause the oscillation of the rocker 18, to which may be connected a fan-stem 19, as in said patented construction above mentioned. The means whichwe have illustrated in the present drawings for connecting the fan-stem to the rocker are identical with those illustrated in the aforesaid patent in that they include a stud 20, provided with a stem-receiving opening at a right angle to the axis of the rocker, and a set-screw 21 for impingingagainst the stem 19. We have found it desirable, however, under certain circumstances to employ auxiliary fans, in the first place, to distribute the means for creating currents of'air, and, in the second place, to utilize to a certain extent that portion of the motion of the crank-disk 16 which is not employed in communicating motion to the rocker. To accomplish this object, we employ supporting-arms 22, attached to and extending in opposite directions from the plane of the frame 13 and having auxiliaryfan stems 23 pivoted thereon and connected, by means of rods or pitmen 24, with the crankdisk 16. The supporting-arms are adapted for longitudinal adjustment to vary the interval between the auxiliary-fan stems, and in practice we prefer to provide said arms with a plurality of bolt or set-screw openings 25, adapted to be registered in pairs, and bolts or set-screws 26, extending through the registering perforations and engaging the frame 13. The connecting-rods 2- are correspondingly adapted for adjustment to suit the desired interval between the auxiliary-fan stems and are provided with a plurality of wrist-pin openings 27, whereby they may be connected at different points with the crank-disk 16. It will be seen that as the rocker is located approximately in the vertical plane of the crankpin the motion of the latter at the upper and lower portions of its path is not utilized wholly in actuating the main-fan stem; but as the connecting-rods 24: extend approximately horizontally from the crank said motion of the crank-pin at the upper and lower portions of its path is utilized to actuate the auxiliaryfan stems. Therefore when the main fan is approximately at rest the auxiliary fans are actively operated, and vice versa.

As above indicated, the operating-cord 28 extends from the operating-drum 6 to the compensating drum 4, the latter being fixed to its spindle 3 and having in connection therewith a fixed ratchet or stop wheel 29, a safety or stop pawl 30 being located in operative relation with the ratchet. Then the parts of the mechanism are in operation, this pawl 30 is adapted to be held out of engagement with the ratchet, and in order that this may be accomplished with facility and at the same time provide for the prompt engagement of the pawl with the ratchet in case of the breakage of an operating-cord 28 We employ a trip-arm 31, connected to the pawl and having a bearing-pin 32, preferably fitted with an antifriclion-roller and adjustably mounted upon the arm 31, whereby it may be arranged in different positions, according to the direction in which the operating-cord 2S approaches the compensating drum. In the construction illustrated in Figs. 1 and 2, wherein the operating-drum mechanism is supported by the weight-bar 1 and the operating-cord extends vertically to the compensating drum, the bearing-pin is fitted in an eye 34 at the extremity of the trip-arm 31, being secured by a nut 35, whereas in the construction illustrated in Fig. 3, wherein the operating-drum is located out of the vertical plane of the compensating drum, (the operating-cord 28 approaching the compensating drum in an approximately horizontal direction,) the bearing-pin is fitted in an upper eye 34 of the trip-arm. The bearing-pin or its antifrictionroller simply lies in contact with the operating-cord, and thereby maintains the pawl 30 out of engagement with the ratchet 29; but the breakage of the cord, due to the overstraining thereof, releases the pawl and allows it to drop by gravity or other yielding force to the position indicated by dotted lines in Fig. 3.

As a means of insuring the proper support of the operating-weight, which in a machine of this class mustbe heavy and must operate slowly in order that a protracted operation of the mechanism may be secured, we employ a supporting-frame having legs or standards 36, arranged in pairs and connected by a 1011- gitudinal bar 37, said bar preferably having terminal depending ears or brackets 38, into seats 39, in which the upper contiguous ends of the standards 36 are fitted. The brackets are preferably extended and provided with terminal bearings for the spindle 3, and an intermediate bearing 38 may be arranged adjacent to the center of the bar 37.

Referring particularly to the construction illustrated in Figs. 1 and 2, wherein the frame of the operating-d rum is shown secured to the weight-supporting bar 1,by means of a screw stud 40, extending through a socket in the lower wall of the frame and threaded into an opening in the bar 1, it will be seen that a suitable length of the operating-cord being wound upon the compensating drum and the supporting or safety cords 2 being properly attached to the spindle of the compensating drum the winding of the operating-drum will unreel the operating-cord from the compensating drum, and in so doing will turn the spindle 3 and wind the sup porting or safety eords2 thereon. Obviously this will raise the weight-bar and with it any weight which may be supported thereby, and when the winding motion of the operatingdrum ceases and the fan mechanism is free to operate the downward tendency of the weight-bar, in addition to reversely turning the operating-drum, and hence operating the driving mechanism, will turn the spindle 3, and hence the compensating drum, and thereby take up the slack of the operating-cord as it leaves the operating-drum. Hence in case of the breakage of the operating-cord and the release of the trip-arm 31 the weight-bar with any parts attached thereto will be supported by the safety-cords 2, the pawl 30 immediately dropping into engagement with the ratchet 29.

The construction above described is especially adapted for use under conditions wherein a hammock 4:1 and its eontents'form the weight, the same being terminally attached to the weight-bar 1, which is preferably of extensible construction, comprising telescoping members 1 l ,which are secured at the desired adjustment by means of a set-screw 42. Hence with the frame of the operating-drum mechanism 5 secured to the weight-bar and the auxiliary-fan stems supported, as hereinbefore described, by means of arms 22, or the equivalents thereof, in positions contiguous to the vertical plane of the weight-bar the Weight of the occupant of the hammock serves to maintain the mechanism in operation, While at the same time said occupant is not exposed to injury by reason of the overstraining of the operating-cord, owing to the safety devices described for preventing the dropping of the weight-bar in case said operating-cord should part. The supporting-frame illustrated in the drawings, however, is also adapted for holding the operating-drum in different positions to suit the desired location of the fans, and in order that this may be accomplished in connection with a table or bedstead we employ a lateral bracket-arm 43, projecting from the longitudinal bar 37, and a hanger depending from the extremity of said bracket-arm and consisting of telescoping sections at and 45, secured at the desired extension by means of a set-screw 46. The exterior or tubular member to is fitted in a socket 47 on the under side of the bracketarm 43 and is provided with a lateral pulley 48. The stem or interior member 44 of the hanger is adapted to be engaged with an opening at) in the upper side of the frame 13 of the operating-drum, and when the bracketarm is not required it maybe detached from the bar 37, to accomplish which we provide the former with securing-plates 50, adapted for arrangement, respectively, in contact with the upper and lower sides of the bar 37 and engaged by a pin 51 extending therethrough.

In the construction illustrated the crankdisk 16 is shown constructed as a pulley attached to the outer end of the pinion 15 and adapted to be traversed by a belt or the equivalent thereof (not shown) for communicating motion to any suitable device requiring to be rotated. \Ve simply utilize this means of applying a pulley to the mechanism whereby rotary motion may be communicated to a device which it is desired to op erate by the fan mechanism.

It will be understood, furthermore, that various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of this invention.

I'Iavin described our invention what we of a rocker operatively connected with the crank disk and provided with means for holding a fan-stem,longitudinally-adju stable supporting-rods extending in opposite directions from the plane of said frame, means for securing said rods at various adjustments, auxiliary-fan stems pivotally mounted upon said supporting-rods, and connecting-rods extending from the auxiliary-fan stems to the crank-disk, and adjustably connected to the latter, substantially as specified.

2. In a mechanical motor, the combination with a Weight-bar, of a compensating drum, supporting or safety cords connecting the weight-bar with the spindle of the compensating drum, an operating-drum, an operating-cord attached at opposite ends respectively to the operating-drum and the compensating drum and reeled upon the latter oppositely to the safety-cords, and stop mechan ism for the compensating drum, including a trip normally held in an inoperative position by the operating-cord, substantiallyas specified.

3. In a mechanical motor, the combination of a weight -bar, an operating -drum, and mechanism actuated by the drum and supported by said weight-bar, a compensating drum, an operating-cord terminally reeled respectively upon the operating and compensating drums, safety-cords attached to the weight-bar and reeled upon the spindle of the compensating drum in the direction opposite to the operating-cord, and stop mechanism for the compensating drum, including a trip arranged in operative relation with saidoperating-cord, substantially as specified.

4:. In a mechanical motor, the combination of a weight-bar, an operating-drum and connected mechanism including an operatingcord reeled at one end on the drum, a compensating drum to which one end of the operating-cord is attached, safety-cords extending from the weight-bar and reeled upon the spindle of the compensating drum, and stop mechanism, including a ratchet fixed to the spindle of the compensating drum, a gravitypawl for engaging and checking the rotary motion of said ratchet, and a trip-arm extended from the pawl and having a bearingpin arranged in the path of the operatingcord and engaged thereby to hold the pawl out of operative relation with the ratchet, substantially as specified.

5. In a mechanical motor, the combination of a horizontal weight-bar provided with means for attaching a hammock, an operating-drum and connected mechanism including an operating-cord reeled at one end on the drum, a compensating drum to which one end of said operating-cord is attached, safetycords extending from the weight-bar at spaced points and reeled upon the spindle of the compensating drum, and stop mechanism,ineluding a ratchet fixed to the spindle of the compensating drum, a pawl for engaging and checking the rotary motion of said ratchet, and a trip-arm attached to the pawl and having a plurality of eyes, and a bearing-pin, fitted with an antifriction-roller, detachably engaged with one of said eyes,and lying across and resting upon the operating-cord, whereby the pawl is normally held out of engagement with the ratchet, substantially as specified.

6. In a mechanical motor, the combination of a supporting-frame, a compensating drum having a spindle mounted in bearings upon said frame, a weight-bar, safety-cords connecting the weight-bar with the spindle of the compensating drum and Wound in one direction on the latter,an operating-drum and con-' ICC IIO

of the compensating drum, and a bracketarm projecting laterally from the supportingframe and having an extensible hanger for supporting the operating-drum, and means for securing the movable member of the hanger at the desired adjustment,substantially as specified.

7. In a mechanical motor, the combination of a compensating drum having its spindle mounted in suitable fixed bearings, aweightbar provided with means for supporting a hammock,safety-cords connecting the weightbar with the spindle of the compensating drum, an operating-drum and connections including an operating-cord reeled at its opposite ends upon the operating-drnm and said compensating drum, means for mounting the operating-drum upon said wcight-bar, and stop mechanism controlled by the operatingcord for checking the rotary motion of the compensating drum, substantially as specified.

8. In a mechanical motor, the combination of a compensating drum having its spindle mounted in fixed bearings, a weight-bar of extensible construction,safety-cords connecting the weight-bar with the spindle of the compensating drum, means for securing the members of the weight-bar at the desired relative adjustment, an operating-drum, and connections including an operating-cord reeled at its opposite ends upon the operating-drum and said compensating drum, and stop mechanism controlled by the operating-cord for checking the rotary motion of the compensating drum, substantially as specified.

In testimony that we claim the foregoing as our own we have hereto alfixed our signatures in the presence of two witnesses.

EDWARD ARTHUR SE\VARD.

JAMES JACKSON JOINES. Witnesses:

J. A. JOHNSON,

.T. M. LENNARD.