US2037026A - Vaporproof mounting for receptacles - Google Patents

Description

A ril 14, 1936. H. HUBBELL, JR 2,037,026

VAPORPROOF MOUNTING FOR HECEPTACLES I Filed Feb. 2, 1932 2 Sheets-Sheet l vAM/x A mM-Imvm! April 14, 1936. i H, HUBBELL, JR 2,037,026

- VAPORPROOF MOUNTING FOR REGEPTACLES Filed Feb. 2, 19:52 2 Sheets-Sheet? Patented Apr. 14, i936 UNITED STATES PATENT OFFICE VAPORPROOF MOUNTING FOR RECEPTACLES 9 Claims.

This invention relates to new and useful improvements in mountings for electric outlet receptacles and has particular relation to a vapor proof mounting for such receptacles.

The invention is particularly although not exclusively useful in rayon plants where trouble is experienced owing to the fact that fumes, as from the spinning bath, engage and corrode contacts. In pot type or centrifugal spinning machines it is not uncommon to provide a separate electric motor for each pot or spinning box and these motors are fed from bus bars usually extending the length of the machine frame and enclosed by a conduit or casing to protect them from fumes.

An object of the present invention is to provide an outlet receptacle and a vapor proof mounting therefor whereby the receptacle may be easily and quickly mounted on a wall of a conduit enclosing the bus bars or wires, in a manner to prevent the entrance of fumes to the interior of the conduit and in a manner to fully protect the contacts of the receptacle.

Other objects and advantages will become ap- 5 parent from a consideration of the following detailed description taken in connection with the accompanying drawings wherein a satisfactory embodiment of the invention is shown. However, it will be understood that the invention is not lim- 3 ited to the details disclosed but includes all such variations and modifications as fall within the spirit ofthe invention and the scope of the appended claims.

In the drawings:

Fig. 1 is a side elevational view showing a portion of a conduit for'enclosing wires or bus bars and having the invention applied thereto;

Fig. 2 is a transverse sectional ,view taken substantially along the line 2-2 of Fig. 1, a plug being shown in elevation and with parts broken Fig. 3 is a detailed sectional view taken substantially at right angles to Fig. 2;

Fig. 4 is an elevational view of a plug;

Fig. 5 is a top plan view of the receptacle removed, the end closure disc being omitted;

Fig. 6 is a transverse sectional view taken substantially along the line 6-6 of Fig. 5, the contacts being omitted and the disc being shown in place in elevation;

Fig. 7 is a-bottom plan view of the receptacle;

Fig. 8 is ,a top plan view of the mounting ring or plate;

Fig. 9 is a view partly in side elevation and partly in section of the mounting ring, the same being sectioned substantially along the line 9-9 of Fi 8;

Fig. 1G is a 60 gasket; and

plan view of a portion of a sealing Fig. 11 is a plan view of the end closure plate or disc of the receptacle.

Referring in detail to the drawings at i2 is generally indicated a conduit or casing enclosing bus bars or wires l3, three of which are shown. The conduit or casing i2 is built up of sections and one section l4 includes a portion l5 forming the top of the conduit and a portion 56 forming a side wall of the conduit. A section l'l forms the bottom of the conduit while a section I8 forms the other side wall thereof. The free edge of the top wall i5 is downturned as at H! while the free edges of the bottom M are downturned as at it and 211.

Side wall it of the casing or conduit i2 has its upper edge portion disposed at the inner side of the flange i9 and is secured to said flange as by screws 22, a gasket or vellumoid or other vapor proof material 23 being interposed between the flange and the adjacent portion of the side Wall M. This gasket is not affected by the fumes surrounding the spinning machine and serves to preventsuch fumes entering the conduit or casing. The lower edge portion of the wall I8 is secured to the flange 20 as by screws 24 and a gasket 25 also of vellumoid or other vapor proof material is interposed at this joint and functions as does the gasket 23. At its lower edge portion the wall 86 is secured to the flange 2| by screws 26 and a gasket 27 corresponding to the gaskets 23 and 25 before referred to is interposed.

From the foregoing description it will be seen that the wires or bus bars I3 are fully enclosed and protected from attack by corrosive gases in the vicinity of the spinning machine with winch they may be associated. It will also be noted that the lower edges of the side walls of the conduit and the lower edges of the flanges 20 and 2| are disposed below the main portion of the bottom wall I! and that any condensation forming on the conduit or any liquid accidentally spilled on the conduit will drip from these low edges and will not follow along the walls of the housing and on to-the bottom wall ii. That is, the edges including the flanges 20 and M provide 'a drip point.

Secured to the lower or bottom wall I! of the conduit l2 are outlet receptacles generally designated 28, these receptacles being preferably .arranged at spaced points whereby they are disposed adjacent to the respective motors to which they are to be connected. Since the receptacles are preferably all of the same construction a detailed description of but one will be given, and it will be noted that each receptacle includes a body 29 of insulating material and which body as shown is substantially circular in plan.

As perhaps best shown by Figs. 2 and 5 the body is' in its upper end slightly recessed centrally whereby it is provided with an annular recesses or wells 3! for the reception of the end portions 32 of contacts 33. Each contact 33 includes a substantially L-shaped portion or extension 34 the short arm 35 of which is riveted or otherwise secured to the portion 32 of the contact as at 36 (see Fig. 2). These short arms 35 of the contact extensions span the recesses 3| and rest in slight depressions 31 provided in the body and about the recesses.

The long arms of the L-shaped extensions 34 project in a direction away from the body and at their outer ends have portions 36 lanced and pressed therefrom and between which and the bodies of the extensions are received the ends of lead in wires 39 connected with the bus bars by soldering or welding as at 46 and which are preferably soldered to the contacts as at 4|.

The bottom wall I! of the conduit or casing 12 is provided with openings 42 through which the extensions 34 of the contacts 33 may pass and disposed against the inner surface of this Wall is a mounting plate or ring 43 formed preferably of metal and provided with lugs 44 having tapped openings 45 therethrough. Also, this mounting plate or ring is provided with a pair of spaced preferably oppositely disposed downwardly extending lugs or projections such as pins or studs 46. The wall I! of the conduit is provided with spaced openings through which the studs 46 pass and these studs are of such length (see Fig. 3) as to pass entirely through the wall l1 and project below the same.

In its upper end body 29 of the receptacle is provided at spaced points with recesses 41 and these recesses are so relatively arranged that when the body is properly disposed against the conduit the studs 46 will enter the recesses 41 and bring the parts into alignment as will later more fully appear. In assembling the contacts 33 in the body it is but necessary to drop the contacts into place with their portions 32 disposed in the recesses 3| and thereafter a disc 48 of insulating material is slipped over the extending arms of the contacts and into position within the annular shoulder 30 of the body.

To permit of this the disc 48 is provided with spaced openings 49 through which the extensions of the contacts may pass and the disc is also provided with a central opening 5|] adapted to align with an opening 5| through the body 29 and through which extends a relatively long bolt 52 adapted to pass through the opening 50 of the disc and on the upper end of which is disposed a nut 53 whereby the disc may be secured in place. It will be noted that the openings 49 through the disc are shaped only topermit of the passage of the extensions 34 of the contacts and that the disc will therefore overlie the short arms 35 and the rivets 36 of the contacts and secure the contacts in place in the receptacle or body.

Body 29 is also provided with spaced openings 54 and the disc 48 is provided with correspondingly spaced openings 55 adapted to align with the openings 54 when the disc is assembled on the body and through these openings are passed relatively long bolts 56, the said bolts being of a length to pass through the body 29, disc 48, wall ll of the conduit and thread into the tapped openings 35 in the lugs 44 of the ring 43. To permit or this the wall ll is provided with openings spaced as are the openings of the disc #38 and the openings 5% through the body Further, tapped openings 35 are spaced to align. with the acct/pee openings through the wall when the lugs 46 of the ring are in position extending through their openings in the wall ll,

Also, the relationship between these various parts is such that when the ring 33 is disposed against the inner surface of the wall l! with the studs 43 of said ring extending through the wall the openings 45 of the ring will be so disposed as to align with the proper openings through walls ll and with the screws 56 when the body 29 of the receptacle is so disposed that the studs 46 enter the recesses 4? in the body of the receptacle. Therefore, it will be seen that when the body 29 is disposed against the wall 37 with the studs 46 entering the recesses 4'1 in the body it will be but necessary to thread the screws 56 into the openings 45 inorder to securely attach the receptacle to the conduit. This greatly facilitates mounting of the receptacle and decreases the time required.

In order that the disc 48 will not in any way block the entrance of the studs 46 into the recesses 41 the said disc may be notched at opposite points as at 51. Further, in order that the screws 56 will not drop out of the openings 54 before they are threaded to the plate 43 and while the receptacle is being held vertical each screw may at some point in its length, as for example at a point immediately below the disc 48, be threaded through a small fiber washer 58 of such diameter as not to pass through the opening 54. It will be understood that these washers 58 are disposed im.

relatively small recesses 59 representing slight enlargements of the openings 54 at some point along the length of said openings and that while "the screws may easily be threaded through the washers they will not fall out of the washers and the washers will hold the screws in place while parts are being brought into proper alignment and before the screws are threaded home.

A fiber gasket 60 may be disposed on the annular shoulder 30 of the body so as to be clamped between the body and the outer surface of the wall I1 and this gasket is provided with openings 6| through which the studs 46 may pass and the gasket is of such thickness as to completely seal the space between the receptacle and the wall of the conduit and it will further be noted that the gasket is of such internal diameter that all connections between the receptacle and the conduit are within the gasket so that the parts are efi'ectively protected from the fumes.

Through its lower end the body 28 is provided with openings 62 for the entrance of contacts, as for example the contact blades 63 of a plug 64 from which leads a cable 65, as for example to the motor of a spinning pot. Also, at its lower or outer end the body 29 is recessed as at 66 whereby an annular shoulder 61 is formed and the diameter of the recess 66 is such that (see Fig. 2) the body of the plug 64 may enter into the recess whereby the two insulating bodies may directly engage when the blades 63 are plugged in. The shoulder 61 surrounding the recess 66 will also form a drip point to prevent condensation moving along the bottom wall of the body and into the entrances 62 to the recesses and contacts.

From the foregoing description tairen in connection with the drawings it will be seen that the present invention provides a mounting for a receptacle whereby the receptacle 2 and quickly secured to a conduit or casing and in a manner to prevent entrance-2.01" vapors or gases to the interior of the conduit through the be easily P to its use in connection with artificial silk spinning machines that it is not limited to use in connection with such machines but may be used and will be found useful in any connection where it is desirable to prevent the entrance of fumes or gases to the interior of a housing or conduit containing bus bars.

Having thus set forth the nature of my invention, what I claim is:

1. In a mounting for an outlet receptacle, in combination, a conduit enclosing conductors, a receptacle, means to mount the receptacle on the conduit with the contacts of the receptacle electrically connnected with the conductors, said means including a plate disposed against the inner surface of a wall of said conduit, said receptacle of a diameter less than the width of said wall of the conduit, and means passing through the receptacle and said wall of the conduit and into said plate to draw the edges of the receptacle against the outer surface of said wall of the conduit.

2. In combination with aconduit enclosing a conductor, said conduit having an opening in a wall thereof, a member within said conduit and disposed against said wall thereof, a receptacle having a contact therein, said receptacle having a knife blade opening through one end thereof to said contact, a gasket on the other end of the receptacle, means passing through said wall of the conduit and engaging said member to draw the receptacle toward said wall and press the gasket there against about the opening whereby the opening is sealed by the gasket and receptacle, and a connection through said opening from the conductor to the contact in the receptacle.

3. In combination with a conduit enclosing a conductor, said conduit having an opening in a wall thereof, a receptacle of a diameter less than the width of said wall and having a continuous shoulder, a member within said conduit, said receptacle having a contact therein, said receptacle having a knife blade entrance opening through one end thereof to the contact, means passing through said receptacle from its outer end and through said wall and into said member to draw the continuous shoulder of the receptacle against said wall about the opening in a manner to seal said opening, and a connection through said opening from the conductor to the contact in the receptacle.

4. In combination with a conduit including top, side and bottom walls and enclosing a conductor, said conduit having an opening through its bottom wall and having the lower edges of its side walls disposed below its bottom wall, a receptacle including a body of insulating material, said receptacle of a diameter less than the width of said bottomwall of the conduit, a member within said conduit and disposed against the bottom wall thereof, said receptacle having a contact therein, said receptacle having an entrance opening through its lower end to said contact, bolts passing-through said receptacle from its lower end and through said bottom wall and into said member to draw the receptacle against the wall conduit having an opening through its bottom wall, a receptacle including a body of insulating material, a member within said conduit and disposed against the bottom wall thereof, said receptacle having a contact therein, said receptacle having an entrance opening through its lower end to said contact, a bolt passing through said receptacle from its lower end and through said wall and into said member to draw the receptacle against the wall and about the opening in a manner to seal the same, means on said bolt within the body of the receptacle and serving prior to the passing of the bolt into said member to prevent the bolt from falling out of the body, and a v connection through said opening from the conductor to the contact.

6. In combination with a conduit enclosing a conductor, said conduit having an opening in a wall thereof, a receptacle including a body of insulating material, a plate within said conduit and disposed against said wall thereof and about said opening, said receptacle having a contact therein and an entrance opening through one end to said contact, means passing through said receptacle and said wall and into said plate to draw the receptacle against the wall and about the opening in a manner to seal the opening, a connection through said opening from the conductor to the contact, said plate having a pair of spaced studs extending through said wall of the conduit, and said body having a pair of spaced recesses to receive said studs whereby to align the attaching means with the openings in the wall and plate.

7. In a receptacle, a body, contacts in said body and including extensions projecting from one end of the body, knife blade inlet openings to said contacts from the other end of the body, a plate of insulating material disposed against the first mentioned end of said body and having openings through which said extensions pass, said plate securing the contacts in the body, and means securing the plate to the body.

8. In combination with a conduit including top and bottom walls and enclosing a conductor, said conduit having an opening in its bottom wall, a receptacle including a body of insulating material having a contact therein, means to secure said receptacle to the conduit with one end of the receptacle engaging the bottom wall of the conduit about said opening in a manner to seal the same, a connection between the conductor and contact, said receptacle having an entrance opening through its lower end wall and leading to said contact, and said receptacle having its lower end recesses whereby to provide an annular shoulder about and spaced from said entrance opening.

9. In combination with a conduit enclosing conductors, a plate inside the conduit, a receptacle having contacts electrically connected with the conductors, a plurality of securing screws in the receptacle passing through a wall of the conduit and threaded into the plate to secure the receptacle to the outside of the conduit, and a sealing gasket between the receptacle and the conduit wall embracing the securing means and the electrical connections from the receptacle to HARVEY HUBBELL, JR.

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