US1312692A - Motion-transmitting apparatus - Google Patents

Description

.I. C. HORNUNG.

MOTION TRANSMITTING APPARATUS.

APPLICATION FILED OCT. 21. 1918.

1,312,692. Patented Aug.'12, 1919,

' 2 SHEETSSHEET I. 7@,/ 32 Z 6 i4 7 I J 7 UNITED STATES PATENT OFFICE.

JOHN C. HORNUNG, OF CHICAGO, ILLINOIS.

MOTION-TRANSMITTING APPARATUS.

To all whom it may concern Be it known that I, JOHN C. HORNUNG, citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Motion-Transmitting Apparatus, of which the following is. a full, clear, concise, and exact description.

My invention relates to motion transmittin apparatus and has a number of objects an advantages in View. -A motion transmittin device made in accordance with my inventlon enables the positive and quick movement of the load or element to which motion is to be imparted.

My invention has been successfully embodied in an apparatus including two oppositely arranged electro-magnets, an ar'ma-' ture between and operable by said magnets alternately, a floating oscillating block pivotally engaged upon'one side with a re ciprocating portion on said annature, a floatin oscillating link having one end pivotally engaged with said block upon a side of the block opposite the lace of engagement of the block and. sai reciprocating portion, a spring pressin upon the other end of said link toward sa1d block and at a place alinedwith an intermediate position of said armature, and a switching device for alternately energizing said electromagnets and including'current conductingv contacting portions on the link upon each side thereof and current conducting contacts *1 between which said link oscillates and complemental to the current conducting contacting portions upon the link. It is to be understood, however, that I do not wish to limit my invention to its preferred embodiment above somewhat specifically described as Spccification of Letters Patent.

Patented Aug. 12, 1919.

Application filed October 21, 1918. Serial No. 258,988.

of and in which Figure 1 is a face view of the apparatus shown in conjunction with valve mechanism and piping, parts being illustrated in section; Fig.2 is a sectional v1ew on line 2-2 of Fig. 1, a diagram of one circuit arrangement being also included 1n this figure; Fig. 3 is a sectional view on line 33 of Fig. 1; Fig. 4 is a perspective View illustrating a detall construction; and Figs. '5 to 9 inclusive are diagrams illustrative of various stages 'in the operation of the device.

Like parts are indicated 'by similar characters of reference throughout the different figures.

The novel portions-of the mechanism may be included in a box 1 all parts of which may be made of iron. One electro-magnet includes two spools 2 and 3 having cores 4 I and 5 secured to one end wall of the box by means of screws 6. Similarly, the second electro-ma'gnet includes two spools 7 and 8 having cores 9 and 10 secured to the opposite end wall of the box. The cores 4 and 9 are alined as are the cores 5 and 10. The alined cores are spaced apart to accommodate 'an armature 11 therebetween. This armature is adapted to move back and forth between the magnetsand is desirably pivoted at 12 so that the back and forth movements of the armature are swinging movements but I do pot wish to be limited to a swinging armaure. 1

If the circuits of the magnets are temperature controlled such a circuit arrangement as that diagrammatically illustrated in Fig. 2 may be employed where I have shown a thermostat 13 adapted to be swung, in response to sufiicient temperature changes, into engagement with the contact 14 to include the magnet 7, 8 in circuit with the battery 15 or into engagement with the contact 16 to include the magnet 2, 3 in circuit with said battery. The 'armatureis shown as being in lost motion connection with a valve rodv 17 that has adjustable flanged sleeves 18, 19 in threaded engagement therewith and between which the armature is disposed and by the regulation of which sleeves the de ee of lost motion between the armature am? the valve rod may be regulated or, if desired, eliminated. The va v rod 17 carries a valve 20 having alternate seats 21, 22 for governi flow of fluid through the pipe 23, 24 bu as this valve block 25, which also is desirably a floating mechanism forms no novel part of my present invention and as I do not wish my invention aibe limited to the character of the load coupled with the armiiture further description of the valve mechanism need not be given. As illustrated, the seats 21, 22 define the range of armature movement.

Where lost motion intervenes between the armature and the valve rod the armature may have a certain travel from either of its extreme positions toward the other before eflecting movement of the valve. At 8. martain' stage in the movement of the armature the device of my invention comes into play to eflect quick movement of the armature and thereby of the valve or other load coupled with the armature. An oscillating block, is pivotally engaged upon one side with a portion 26 that is mounted upon a part of the armature that will impart reciprocating movement to this portion as the armature swings from side to side. This portion 26 may be in the nature ofa thm blade of steel whose outer edge that is parallel with the axis of movement of the armature constitutes a knife edge or pivot portion that'is received in the notch or pivot seat 27 in the block 25. A floating oscillating link 28 is provided with inturned prongs 29 that are received in an opening 30 that extends through the block 25 parallel to the pivot seat 27. By this arrangement the floating oscillating ink 28 has one of its ends pivotall engaged with the block 25 upon a side 0 the block opposite the place of engagement of the block and armature portion 26. A spring 31 is anchored at one end to a wall of the box 1 and has its other end free to move or flex. The free end of the spring carries a slotted enlar ement 32, the slot in-which aflords a seat or the outer end of the link 28 at which place the spring presses upon said link, this place of pressure being almed with an intermediate position of said armature as indicated in Fi 6. There is a switching device employe for effecting the alternate energizations of the magnets and this switching device preferably includes current conducting portions on the link 28 u on each side thereof. In the preferred em odiment of the invention the entire link is of metal to be a conductor of current and, as illustrated in Fi 2, is in permanentconnection with one poIe of the battery 15. The other pole of the battery is connected by way of the thermostat arm 13, contact button 14, and the electro- magnet 7, 8 with a contact. 33 upon one side of the link 28 and by way of the thermostat arm 13, the contact button 16 and the electro-magnet 2, 3 with another contact 34 upon the other side of the link 28, the contacts 33 and 34 being desirably rigid and, of course, complemental to opposing contracting portions on the metallic link 28, all contacts and the magnets being normaly in open circuit.

The diagrams in Figs. 5 to 9 inclusive illustrate various stages through which the device of my invention asses in performing. its functions. As 1? do not desire to limit my invention to a device employing electro-magnets, the element 11 may be termed an arm which may. be movable back and forth by means of any suitable agency. In Fig. 5 the arm or armature 11 is shown at one limit of its range of movement, the portion 26 upon this arm being at one side of the median position'of the arm or armature 11 and portion 26, which median position is indicated by the dot and dash line 35 in Figs. 5 to 9 inclusive. The floating center or axis of rotation 36 of the floating block 25 is, in Fig. 5, upon the same side of the median line 35 with the element 26. The place of pivotal connection of the link 28 with the block 25 is upon the other side of this line 35, still referring particularly to Fig. 5. When the armature is about brought .to its median position as indicated ,in Fig.

6, the elements 26 and '28 are substantially alined with the floating axis 36 of the floating block'25, this block having now been shifted to bring its axis substantially on the line 35. In moving from the position shown in Fig. 5 to the position shown in Fig. 6, the armature or arm 11 turns in a clockwise direction. As the turning movement of the arm 11 continues in a .=clockwise direction to the sition illustrated in .Fi 7 the shifting axls of the block 25 is move to the other si e of the median line 35 as are also the places of engagement of the part 26 and the link 28 with the floating block: In moving from the position shown in Fig. 5 to the position shown in Fi 6 the spring 31 was moved outwardly an moved to bring the parts to the position shown in Fig. 7 the spring 31 operates to move the link 28 inwardly suddenly. This fiexure of the spring is permitted since the place. of pressure at 29 of the spring upon the block 25 is movable toward and away fromthe armature-11:" The link 28, in the position shown in Fig. 7, is above the place of engagement of the plate 26 with the block' when the arm 11 is the operations just described. In the move ment of the arm 11 from side to side the link 28 rubs upon the contacts 33 and 34 to ma1n-,

tain them as well as the parts of the link 28 engaging them bright and clean. I prefer to employ the type of spring 31 lllustrated and the enlargement 32 which afiords a place of engagement of the spring with the link 28 that is alined with the intermediate position of the armature as typified by the the magnet having the core -9 and that the contact 34 is in the circuit of the magnet having the core 4, the current conducting link 28 being common to these circuits. The circuit of the first magnet includes the contact 14 and the circuit of the second magnet includes the contact 16, the thermostat arm 13 being common to these circuits as it is connected with the floating link 28. The circuit whichincludes the link 28 and the contact 33 or 34 engaged thereby is the circuit that is closed by the thermostat arm upon its engagement with the contact-14 or 16 that is in the same circuit with the contact33 or 34 that is in engagement with the link 28. The link maintains engagement with the contact 33 or 34 engaged thereby until the portion 26 is moved by the energized magnet just beyond the median line 35, whereupon spring 31 becomes effective quickly to move the floating link from the contact 33 or 34 engaged thereby to the other one of such contacts. The circuit of the energized magnet is thus maintained until the moment the spring moves toward the floating link andblock. The portion 26 having passed the median line, the spring, in its return or inward movement, effects a map ping movement of the link, quickly to open the circuit of the energized magnet and quickly to bring the valve or other load upon the armature to its new position. The inner end of the link which is connected with the floating block 25 moves to the other side of the median line a distance limited by the contact, 33 or 34, newly engaged 'by the ,link, thereby introducing anefi'ective component force positively to define the new position of the armature load and positively to partially establish the circuit of the magnet thatwas not energized, in order that this second magnet maybe prepared for energization upon the motion of the thermostat nets; an armature between and operable arm 13 which is to effect this energization of said second magnet. In the circuit arrangement illustrated, the light duty thermostat arm 13 merely establishes one of two gaps in either magnet circuit previous to the establishment of the second gap at 33 or 34, at which latter place the circuit is quickly and positively opened to avoid arcing, the thermostat arm never opening either magnet circuit.

While I have herein shown and particu-,

larly described the preferred embodiment of my invention I do not wish to be limited to the precise details of construction shown as changes inay readily be made without departing from the spirit of my invention,but having thus described my invention I claim as new and desire to secure by Letters Patent the following 1. Motion transmitting apparatus including two oppositely arranged electro-magnets; an armature between and operable by said magnets alternately; a floating oscillating block pivotally engaged upon one side with a reciprocating portion on said armature; a floating oscillating link having one end pivotally engaged with said block upon a side of the block opposite the place of engagement of the block and said reciprocating portion; a spring pressin upon the other end of said-link toward sald block and at a place alined with an intermediate position of said armature; and a switching device for alternately energizing said electromagnets and including current conducting contacting portions on the link upon each side thereof and current conducting contacts between which said link oscillates and complemental to the current conducting contacting portions upon the link. 2. Motion transmitting apparatus including two oppositely arranged eleotro-magnets; an armature between and operable by said magnets alternately; a floating oscillatingblock pivotallyengaged upon one side with a reciprocating portion on said armature; a floating oscillating link' having one end pivotally engaged with said block upon a side of the block opposite the place of engagement of the block and said reciprocating portion; and a spring pressing upon the other end of said link toward said block and at a place alined with an intermediate position of said armature.

3. Motion transmitting apparatus including twooppositely arranged electro-mabgy said magnets alternately; a floating oscillating block pivotally engaged upon one side with a reciprocating portion on said armature; a floating osclllating link'having one end pivotally engaged with said block upon a side of the block opposite the place of engagement of the block and reciprocating portion; a spring pressing upon the other lating block I side with said reciprocating portion; a

end of said link toward said block; and a switching device for alternately energizing said electro-magnets and including current conducting contacting portions on the link upon each side thereof and current conducting contacts between which said link oscillates and complemental to the current conductin contact portions upon the link.

4. hfotion transmitting apparatus including two oppositely arranged electro-magnets; an armature between and operable b said magnets alternately; a floating 'osci lating block pivotally engaged upon one side with a reciprocating portion on said arma ture; a floating oscillatin link having one end ivotally-en aged wit said block upon a si e of the b ock opposite the place of engagement of the block and reciprocating portion; and a spring pressing u on the other end of said linktoward said b ock.

5. A motion transmitting device including a reciprocating portion; a floating oscillating block pivotally engaged upon one side with said reciprocating portion; a floating oscillating link having one end ivotally engaged with said block upon a si e of the block opposite the place of engagement of the block and reciprocating portion; and a spring pressing upon the other end of said link toward said block and at a lace alined with an intermediate position 0 said reciprocating portion. 7

6. A motion transmitting device including a reciprocating portion; a floating oscilpivotally engaged upon one portion; and a spring pressing upon the other end of said link toward said block.

7. Motion transmitting apparatus including electro-ma netic mechanism having an armature mova 1e thereby; a floating oscillating block pivotally engaged upon one side with a reciprocatin portion on said armature; a floating oscillatin link having one end ivotally engaged wit said block upon a sidii of the block opposite the place of engagement of the block and said reciprocating portion; and a spring pressing upon the ot er end of said link toward said block and at a place alined' with an intermediate position of said armature.

8. Motion transmitting apparatus including electro-ma armature mova 1e thereby; a floating oscillating block pivotally engaged upon one side with a reciprocatin portion of said armature; a floatin oscillatin link hav ing one end pivota ly engag with said block u on a side of the block opposite the place 0 engagement of the block and said reciprocating portion; and a spring pressin upon the other end on said link toward said block.

In witness whereof, I hereunto subscribe my name this fourteenth dayof October A. D., 1918.

JOHN C. HORNUNG.

etic mechanism having an

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