US1029750A - Electrical pendant switch. - Google Patents

Description

H. D. GORTNER.

ELECTRICAL PENDANT SWITCH.

ION FILED JULY 12,1911v APPLIQAT 1,029,750. Patented June 18, 1912.

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'UNXTED STATES PATENT OFFICE.

ELECTRICAL PENDANT SWITCH.

Specification of Letters Patent.

Patented June 18, 1912.

Application filed July 12, 1911. Serial No.638,097.

To all who-m it may concern:

Be it. known that- I, HENRY D. Gon'rNnR, a citizen of the United States, residing at Colorado Springs, in the county of El Paso and State of'Colorado, have invented certain new and useful. Improvements in Electrical Pendant Switches, of which the following is a s ,ecificat-ion. reference being had to the am-ompanying drawings.

This invention relates to switches for opening electricalcircuits, and more particularly to that class of switches that are known as pendant switches.

.lhe.objects of this invention are to pro vide a pendant. switch which can be manufactured at a comparatively lowcost, to have relatively small number of parts. and to have such parts rigidly mounted within the switch. to have a switch bodyproper of synn'netrical design which can be readily and cheaply manufai'ztured, to have the sections of said switch connectihle together by meanswhich eliminate the necessity of screws, or other devices that necessitate the use of tools, to eliminate the use of springs that have the liability of getting out of orthe, to have only one movable part within the switch. this part being the push button itself, which through necessity must move within the switch, to have all the parts ar r "aged so that they can be replaced, should it or new "try to do so, to bring the designs of the to such a minim 1m number thatthe cost of manufacture may be greatly redared, to provide a switch which can be readily assembled by unskilled labor, to pro virlc a. swit'cl'i which will not necessitate the use oi tools in its assembling, to provide a switch which will withstand a rough usage and continuous ear for a. comparatively long time. to have switch. which it will be prai'ticaliy l""tj'.lOSSli)ltl to short circuit to provide a su :h which will meet all the requiremcnts met with in practice, and at the same time. will be orname ital, perfectly insulated and exceptional y low in costto manufacture.

This invention is simple in every way and the body proper is in two symmetrical halves. There are four posts of similar design, two of which are arranged to receive circuit wires and all four arranged to form the means whereby the shell parts are held securely together. The means for making the contact consists of a fiat strip of metal which is suitably bent to resiliently engage with the push rod of the switch, so that, when the 'push rod is moved from one position to the other. it will raise or lower, as the case may be, the flat piece of metal and put it into contact with the other post connected to the other side of the line, and thereby complete the circuit. This arrangement makes it possible to manipulate this switch for a considerable time, because there is no possibility of any of the parts becoming disarranged, or otherwise getting out of order. They are onlycapable of being Worn by the frictional action on which their action depends. This wear will take a considerable time to produce any noticeable efect in the parts so that an exceptionally long life given to the switch.

In the accompanying drawings whichv illustrate by way of example an embodiment. of this invention: Figure 1 represents a pendant switch embodying this invention; Fig. 2 represents-an interior view of the switch with one half of its shell removed; Fig. 3 is a detail of the push rod used in this invention; Fig. '1 is a. detail showing the interior of one half of the shell; Fig. 5 is a central sectional view of the switch.

Simila r reference characters refer to simii lar parts throughout the drawings.

In the construction shown in the drawings 1 represents one of the halves of the shell body proper. Each half is symmetrical wi h the other.

2 is recess provided in the shell 1 in order to permit the insertion of a push rod 3 therein, and also to provide means for connecting screws 4 which are secured to the posts or dowels 5 and 6 to be disposed therein. The plate 7 is made-of a flat piece of material secured to one of the binding so that it will be held securely in position so that it will come in engagementwith the portion, whichcan be readily seen from the shells are arranged to permit theuvires for push rod. A hump 8 is provided on the upper portion of the push rod 3 and in the middle portion thereof, so that when the push rod is actuated this hump will press the plate 7 up against the other binding post so that the circuit will be completed. When it is desired to open the switch the push rod is pushed back in theordinary way, so that the hump moves out of engag'ement with the plate and permits the same to open the circuit.

The posts 5 and 6 extend from the shell they are in so that they will engage in the holes 9 and 10 in the other shell. These posts are shaped so as to fit closely therein and frictionally prevent the shell portion from coming apart after the same are put together until 1t is purposely intended to separate them, in which case it will be necessary to use quite a little force to disengage the shells from these posts; Posts 11 and 12 are mounted on the opposite portion of the same" shell in which the first mentioned posts are normally secured, in order to provide means whereby the shell portions will be held more securely together, being arranged to fit in the same manner into corresponding holes 13 and 14 in the other shell drawings.

Should it appear desirable, the posts or dowels 5 and 6 and 11 and 12 are preferably additionally held in the lower shell by means of a suitable glue-or cement, while the upper portions of these osts are arranged to fit in their respective holes and only frictionally be held therein. This friction will inmost cases be sufficient to hold these parts firmly and securely together.

Provided in the upper portion of the shells are the grooves 15 and 16 which come together when the shells are closed on one another, and form a hole for the wires that go to the switch. The inner portion 2 in the the switch to be disposed therein, in the usual manner. Enough space is left therein to provide for the usual knot put on the wires or any other arrangement usually practised.

F rom-the above description the operation of the device is apparent, and its convenience will be readily appreciated by those skilled l in the art.

Obviously, while there is shown but one modification of the construction of this in vention, in the drawings, it is not desired to limit this application for a patent in any way, otherwise than necessitated by the prior art, as many modifications of the construction of this invention may be made, without departing from the principles thereof. It is also understood that the frictional securing means described, can be used for electrical apparatuses of a kindred nature such as sockets, etc.-

Having thus described this invention it is claimed:

1. A switch comprising a body proper, consisting of a plurality of sections, said sections being of a similar form and provided with a plurality of recesses therein, a plurality of posts frictionally held in corresponding recesses in said sections to hold the sections together, binding screws disposed on some of said posts and arranged to take the circuit Wires and a plate for mak ing contact between the last mentioned posts, and means for moving said 'plate into contact with said latter posts.

2. A switch comprising a body consisting of mating sections provided with recesses, dowels disposed frictionally in said recesses and adapted to hold the sections together, binding posts mounted on sundry of said dowels and arranged for the attachment of the circuit wires thereto, a plate secured to one of said posts and arranged for making contact between the posts, and a push rod movable in said sections and arranged to push said plate in a direction to make contact between the posts.

3. A pendant switch comprising a body proper, consisting of a plurality of sections, said sections having a plurality of recesses therein, a plurality of posts, said posts being disposed in recesses in adjacent sections so as to hold said sections frictionally together, means disposed on some of said posts for electrically connecting circuit wires thereto, a member connected to one of said last mentioned. posts, and means for moving said member into contact with another of the last mentioned posts.

4. A switch comprising a body proper having a plurality of symmetrical sections, said sections being provided with a plurality of recesses therein, a plurality of posts disposed in the recesses of adjacent sections so that the same will be held frictionally together, means for securing circuit wires to said posts, and means for electrically connecting said posts together.

5. A switch comprising a body proper having a plurality of sections, said sections being "ecesses of adjacent sections binding screws disposed on a pair of said posts and arranged to secure cire'uit wires thereto, and a member for making electrical contact with the last mentioned posts, and means'for causing said member to make contactwith the last mentioned post's. y

(5. A switch of the character described, including a sectional body, the sections'of which are tormml with recessed portions,

provided with a plurality of recesses f (herein a )lurality of osts dis )osed in the l P l dowels frictionally engaged in said recessed portions of the respective sections, whereby to hold the sections of the body together, binding posts mounted on said dowels, a spring plate secured to one binding post and normally disengaged from the other post and a push rod movable through the body and provided with a raised portion adapted to engage the relatively free end of said plate and to move the same in a di- 10 iection to complete the circuit.

In testimony whereof I hereunto aflix my signature in the presence of two Witnesses.

HENRY D. GORTNER.

Witnesses:

F. C. GRAVES, GEO. R. JouNsoN.

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