US644621A - Impact-motor. - Google Patents

Description

No. 644,62I. Patented Mar. 6, I900. R. MESSINGER.

IMPACT MOTOR.

(Application filed May 13, 1899.) (N BL) 2 Sheeis-Shaet I.

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No. 644,621. Patented Mar. 6, 1900. R. messmezn.

IMPACT MOTOR.

(Application filed May 13, 1899.) (No Model.) 2 Sheets-Sheet 2.

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UNITED STATES;

PATENT FFICEQ IM PACT-M OTO R.

SPECIFICATION forming part of Letters Patent No. 644,621 dated March 6, 1900.

' Application filed May 13, 1899. Serial No. 716,635. (No model.)

To aZZ whom it may concern.-

Be it known that I, REINHOLD MESSINGER,

a citizen of the United States, residing at New Canaan, in the county of Fair-field, State of Connecticut, have invented certain new and useful Improvements in Impact-Motors, of which the following is a specification.

My invention relates to various new and useful improvements in impact-motors of the type wherein steam, compressed air,water, or other fluid pressure is conveyed by one or more nozzles to a series of buckets against which the pressure fluid impinges. Prior to myinvention with such motors it has been the practice either to mount the nozzle or nozzles so that they may rotate with respect to a series of stationary concentric buckets or to use a stationary nozzle or nozzles driving a series of rotary concentric buckets. In myimproved impact-motor I mount both the buckets and the nozzle or nozzles so that they may rotate and connect them with the power-shaft, by which means I am enabled to materially increase the starting power and to correspondingly decrease the speed of rotation, both of which results are objects which have been sought in motors of this type.

In order that my invention may be better understood, attention is directed to the accompanying drawings, forming a part of this specification, and in which- Figure 1 is a plan of a convenient embodiment of my invention; Fig. 2, a vertical section on the line 2 2 of Fig. 1; Fig. 3, a section on the line 3 3 of Fig. 1, and Fig. 4 a side view.

In all of the above views corresponding parts are represented by the same numerals of reference.

1 represents a shaft having a passage 2 therein for conveying the steam, compressed air, water, or other fluid pressure and'carrying, preferably, a plurality of hollow arms 3, which connect with the passage 2. Each arm is provided with a slotted portor nozzle 4 in its extremity, through which the pressure fluid is directed against a series of buckets 5, carried on the interior of a ring 6. The ring 6 is bolted or otherwise secured to a disk or flange 7, connected to a sleeve 8, which is concentrically mounted with respect to the shaft 1. The pressure fluid is introduced into the motor through a pipe 9, connected by a stuffing-box 10 with the open end of the shaft 1, as shown.

The bearings for the shaft 1 and sleeve 8 may be of any suitable type; but preferably they are antifriction ball-bearin gs, as shown. The bearing-sleeve 11 is provided with cups 12 12, between which and the cones 13 13 on the shaft 1 are placed the antifric tion-balls 14. At the other side of the flange 7 is a bearing-sleeve 15, having cups 16 16, between which and the cones 17 17 on the sleeve 8 are mounted the antifriction-balls 18 18. The extreme end of the sleeve 8 carries a cup 19, between which and a cone 20 near the end of the shaft 1 are mounted the balls 21. It will thus be seen that the shaft 1 is supported by the antifriction-balls 14 and 21 and that the sleeve 8 is supported by the antifriction-balls 18 18, whereby both of these ele ments will be capable of rotation with the minimum friction. The bearing- sleeves 11 and 15 are cut away at 22, as shown.

The shaft 1 is provided with a worm-thread 23 and the sleeve 8 with a worm-thread 24. These threads are preferably oppositely pitched, as shown, one being right hand and the other left hand, whereby the thrust of one will balance the thrust of the other. Meshing with the worm-thread 23 is a worm-wheel 25 and meshing with the worm-thread 24 is a worm-wheel 26, these worm-wheels being carried loosely on the shafts 27 27. A ratchet and pawl 28 connects the worm- wheels 25 and 26 with the shafts 27 whereby rotation of the worm-wheels in one direction serves to drive the shafts 27; but reverse rotation of said shafts with respect to the worm-wheels will be permitted. The shafts 27 27 carry the beveled gears 29 and 30, which gears mesh with the beveled gears 31 and 32 on the power-shaft 33. When the worms 23 and 24 are of opposite pitch, as explained, the beveled gears 31 and 32 will be engaged at opposite extremities of the corresponding diameters of the two gears 29 and 30, as shown, whereby the reverse rotation of the shafts 27 will drive the power-shaft 33 in the same direction.

- The operation will be as follows: A pressure fluid being admitted through the pipe 9 into the hollow shaft 1, the flow of the fluid will be directed through the ports or nozzles 4 against the buckets 5, whereby the ring 6 will be turned in one direction and the impact or reaction will turn the arms 3 and the shaft 1 in the opposite direction. The rotation of the shaft and the sleeve 8 will communicate power to the shaft 33, which will be driven and from which the power maybe applied in any suitable way to the desired end. By thus causing rotation both of the shaft 1 and of the sleeve Sin opposite directions I very materially increase the starting stress and reduce the speed of rotation of the parts, in which respects my improved motor differs from the motors of this type heretofore sug; gested.

The object of using a ratchet connection between the worm- wheels 25 and 26 and their driven shafts 27 is to enable the motor to start properly on a minimum load or on no load. It will be seen that if the worm- wheels 25 and 26 were connected directly to the shafts 27 there would be danger, if the motor started to operate on no load, of the ring 6 commencing to rotate first, owing to its larger diameter, thus tending to turn the shaft 33 and jamming the worm-wheel 25 against the worm 23, so as to thus lock the elements of the device. By interposing a ratchet connection between these parts it will be seen that if the ring 6 starts to operate before the shaft 1 the turning of the power-shaft 33 will rotate the shaft of the worm-wheel 25 with respect to the latter, leaving the shaft 1 entirely disconnected from the power-shaft, but permitting the shaft 1 to rotate to again engage the wormwheel 25 with its shaft. If the device is started on a load, the objection indicated will not be experienced, since the resistance of the load is of course greater than the difference between the friction of rotation of the shaft 1 and the sleeve 8.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is as follows:

1. In an impact-motor, the combination with a concentric series of buckets mounted rotatably, and an impact-nozzle cooperating therewith and mounted to rotate in an opposite direction, of a power-shaft, means for transmitting the opposite movements of the buckets and nozzle to said shaft to rotate the latter, and ratchet mechanism for permitting the shaft to rotate independently of said buckets and nozzle, substantially as set forth.

2. In an impact motor, the combination with a concentric series of buckets mounted rotatably, of an impact-nozzle mounted to rotate in an opposite direction, a power-shaft, connections between the rotatable elements and said power-shaft, and a pawl and ratchet interposed between such connections, substantially as set forth.

3. In an impact-motor, the combination with a series of concentric buckets connected to a rotatable ring, of a plurality of hollow arms having nozzles for directing a pressure fluid against said buckets, said arms being rotatably mounted, two worm-screws of opposite pitch driven by the buckets and by said arms, a worm-gear rotated by each of said screws, a power-shaft, and connections be tween the worm-gears and said shaft, sub stantially as set forth.

et. In an impact-motor, the combination with a series of concentric buckets connected to a rotatable ring, of a plurality of hollow arms having nozzles for directing a pressure fluid against said buckets, said arms being rotatably mounted, two worm-screws driven by the buckets and by said arms, a worm-gear rotated by each of said screws, a power-shaft, connections between the worm-gears and said shaft, and a ratchet and pawl connecting each of said wormgears with its shaft, substantially as set forth.

5. In an impact-motor, the combination 8 with a hollow shaft, of a sleeve mounted on a portion of said shaft, a series of hollow arms carried by the shaft and having nozzles at their extremities, a series of buckets carried in a ring connected to said sleeve, a wormscrew on the hollow shaft, a worm-screw of opposite pitch on the sleeve, worm -gea1's driven by said screws, a power-shaft, and connections between the worm-gears and said power-shaft, substantially as set forth.

6. In an impactmotor, the combination with a hollow shaft mounted in a bearingsleeve on antifriction-balls, of a sleeve concentric to said hollow shaft and'mounted in a sleeve on antifriction-balls, an antifriction- 10o bearing between the concentric sleeve and the hollow shaft, a series of buckets carried in a ring connected to said sleeve, and a series of arms connected to the hollow shaft and carryin g nozzles which cooperate with said buck- 1o 5 ets, substantially as set forth.

7. In an impact-motor, the combination with a hollow shaft mounted in a bearingsleeve on antifriction-balls, of a sleeve eoncentric to said hollow shaft and mounted in 110 a sleeve on antifriction-balls, an antifrictionbearing between the concentric sleeve and the hollow shaft, a series of buckets carried in a ring connected to said sleeve, a series of arms connected to the hollow shaft and car- I15 rying nozzles which cooperate with said buckets, a power-shaft, and connections between the hollow shaft, the sleeve and said powershaft, substantially as set forth.

This specification signed and witnessed this I 20 11th day of May, 1899.

REINIIOLD MESSINGER.

Witnesses:

GEORGE L. XVOODWARD, HARRY W. MERRILL.

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