Патент USA US2109054код для вставки
Feb- 522, 1933- E. M. SORENG ET AL 2,w9,@54 SWITCH Filed July 27, 1934 I' 4I(?II N (I) Iii i- a �.11 �.12. 3?" INVENTORS EDGAR M. So?'ENe CARL. WILL �.15 BY PM "Wm/?4v ATTORNEYG 2,109,054 Patented Feb. 22, 1938 UNITED STATES PATENT ?OFFICE \ 2,109,054 SWITCH Edgar M. Soreng, Chicago, Ill., and Carl Will, Minneapolis, Minn., assignors to Tropic-Aire, Incorporated, Minneapolis, Minn, a corpora tion of Delaware Application July 27, 1934, Serial No. 737,262 3 Claims. (Cl. 200?167) Figure 1 is a side? elevation, partially in section," This invention relates to new and useful im showing the improved switch; provements in electric switches, and more par ticularly to a switch comprising a plurality of sets of contacts and a circuit closer having means 5 for selectively moving it into engagement with said contacts. An object of the invention is to provide a switch comprising a plurality of contacts and a circuit closer having a member for selectively moving H O it into engagement with said contacts, and said member having means associated therewith for indicating the position of the circuit closer. A further object is to provide a switch com prising a plurality ofcontacts and a circuit closer 1 therefor, and an operating member for selec Figure 2 is a cross-sectional view on the line 2?2 of Figure 1, showing the gravity operated disk or element in its normal circuit opening ' en position; Figure 3 is a view similar to Figure 2, but show ing the operating member rotated to the HI, or high speed position; Figure 4 is a front view of the operating mem 10 ber positioned as shown in Figure 3; Figure 5 is a view similar to Figure 2, but showing the operating member rotated to cause the low speed circuit to function; Figure 6 is a view similar to Figure 4, showing 15 tively moving said circuit closer into engagement the operating member positioned for low speed; Figure 7 is a plan view showing the relative with said contacts, and said operating member having an illuminated chamber therein. one wall positions of the various contacts of the switch, of which is provided with suitable indicating - and showing the circuit closer in its normal cir 20 openings bearing a certain relation to said con tacts. and a gravity operated element being pro- . vided in said chamber and adapted. to close one or the other of said indicating openings, whereby an operator may at all times quickly note the 25 position of the circuit closer of the switch with respect to said contacts. cuit opening position; Figure 8 is an end view of the operating mem ber with the front cap or wall removed there from; ' Figure 9 is a perspective view showing the semi-circular element of the operating member 25 removed therefrom; Other objects of the invention reside in the means provided within the operating member of the switch for indicating the position of the cir . Figure 10 is a perspective view showing the operating member which comprises? an illumi ating member, partially in section; transparent wall of the operating member re moved therefrom; Figure 11 is a side view of the body of the oper 30 cuit closer; in the particular construction of the 1 natedchamber having a disk mounted for roll ing movement therein and cooperating with means in a wall of said chamber to indicate the 3 position of the circuit closer; and, in the simple and, inexpensive construction of the operating member of the switch. whereby it may be manu factured at small cost and may readily be at 40 tached to ?other types of switches, where applica ble, whereby the various positions of the operat ing member of such a switch may readily be noted. ' Other objects of the invention will appear from Figure 12 is a longitudinal sectional view on the line _I2?-l2 of Figure 2, showing the relative posi tion of the various parts of the operating mem ber; and Figure 13 is a perspective view of the disk-like element. provided within the operating member. In the selected embodiment of the invention here shown, there is briefly illustrated in Fig ures 1 and 7, a switch comprising a casing 72, shown having mounted therein, a plurality of contacts 3-3, 4-4, and 5?5. These contacts are diagrammatically illustrated in Figure '7, and the contacts of each set are adapted to be elec trically connected by a circuit closer 6, which, in Figure 7, is shown in its neutral or off position; claims. ' The contacts 5-5 are not electrically connected In the accompanying drawing there has been . in a circuit, but merely function to retain the disclosed a structure designed to carry out the circuit closer 6 in its neutral position. The casing 2 is shown secured to a threaded various objects of the invention, but it is to be understood that the invention is not con?ned t3 sleeve ?I, which may be inserted through an open the exact features shown as various changes ing provided in a supporting wall 8, such as the may be made within the scope of the claims which instrument board of an automobile, and. secured thereto by suitable lock nuts 9 and II. follow. A tubular member I2 is rotatably mounted In the drawing: the following description and accompanying 45 drawing and will be pointed out in the annexed 2 2,109,054 within the sleeve 1 and is operatively connected to the circuit closer 6 by suitable means, not . shown in the drawing, whereby the circuit closer is rotated simultaneously with the member l2. The contacts 3--3 are shownv provided with terminals I 3 and I4, whereby said contacts may be connected to the wires I5 and I6, respectively, of an electric circuit. ~ In the drawing, the contacts 4-4 are shown electrically connected to the contacts 3?3 by suitable resistance elements l1, whereby when the circuit closer 6 electrically connects the con tacts 4-4, a resistance is interposed in the cir cuit to thereby reduce the current ?ow there The constructional details of the 15 through. switch, per se, form no part of the present inven tion, and it is therefore thought unnecessary to further describe the same. An important feature of the invention resides in the means provided for indicating the position of the circuit closer 6, which, as will be readily understood by reference to Figure l, is enclosed within the casing 2, whereby it cannot be seen. The means provided for thus indicating the 25 position of the circuit closer 6 is embodied in the construction of an operating member, generally indicated by the numeral l8 in Figure 1. This operating member comprises a cylindrical por tion is detachably, but non-rotatably secured to 30 the end portion 2| of the tubular member l2 by suitable means, not shown. An electric light bulb 22 of conventional type is secured in a socket 23 provided in the member l2, and is shown having its outer end portion projecting beyond the end of the member. The cylindrical portion 19 of the operating member? is shown provided with an outwardly projecting ?ange or head 24, having a plurality of notches 25 provided therein. The head 24 is 40 counterbore?d to provide a shoulder or- seat 26 adapted to receive a disk 21 of a suitable trans parent material, which may be of any suitable color such, for example, as red. A semi-circular member 28 of a suitable opaque material, is seated 45 against the disk 21 and is shown provided with outwardly projecting lugs 29 adapted to be re ceived in notches 25 provided in the head 24, as clearly illustrated in Figure-8. By spacing the lugs 29, as shown in Figures 8 and 9, the member 50 28 cannot become disengaged from the walls of? the head 24, when supported therein, as shown in Figures 1 to 5, inclusive. A suitable cap 3| is ?tted over the head 24 of ber 28, as will be clearly understood by reference to Figures 3 and 5. The disk 31 may be con structed of metal or any suitable opaque mate~ rial having suf?cient weight to cause it to readily roll by gravity, when the operating member 3| is rotated from one position to another, as indi cated in Figures 2, 3, and 5. Assuming now that the switch is to be used for controlling the operation of a motor having two speeds, and that the circuit closer is positioned as shown in Figures 2 and '7, in which the cur rent supplied to the motor is cut o?. The oper ating member ?3 of the switch is then rotated to the right, as indicated by the arrow in Figure 2, until the circuit closer 6 bridges the contacts 3?3. When the circuit closer thus engages the contacts 3?3, the full current of the circuit is delivered to the motor, whereupon it will operate at high speed. It is- also to be observed, by ref erence to Figures 3 and 4, that when the circuit closer electrically engages the contacts 3?3, the semi-circular member 29 is rotated to the posi tion, best shown in Figure 3, whereupon the disk 31 will be alined with the letters L0, and the letters HI, indicating high speed will be visible because of the light bulb 22 illuminating the chamber 34 through the transparent disk or window 21. It is to be understood that the light bulb is so connected in the switch, that when the circuit closer 6 is electrically engaged with either 1 set of the contacts 3-3 or 4-4, the light bulb 22 will be lighted. If it is desired to operate the motor at low speed, the operating member ill will be rotated still farther to the right until the circuit closer engages the contacts ?4-4, whereupon the re sistances l'l-l l are interposed in the circuit, and ?thus cuts down the supply of current to the mo tor. When the circuit closer is thus positioned, the semi-circular member 29 will be rotated to the position shown in Figure .5, whereby the disk 31 will move by gravity to the position shown in this ?gure, thereby closingr indicating openings 36 or letters HI and opening the letters LO, which will indicate to the operator that the motor is operating at low speed. Thus, it will be seen that the openings 35 and 36'are opened and closed by the disk 31, by relatively rotating the operat ing member l8, whereby the operator may always readily note the position of the circuit closer 6. The device is very simple and inexpensive and c1 may be used in connection with different types? of switches employing a plurality of contacts and the operating member l8, and may have portions a rotatably mounted bridge member circuit closer 55 of its ?ange 32 bent downwardly into certain of for closing the circuit between said contacts. It the notches 25 of the head 24 to thereby prevent is to be understood that the switch is not to be the cap from accidentally becoming detached limited to an electric motor, as it may be used in therefrom. When the cap 3| is secured to the _ connection with various other electric circuits head 24, as shown in Figures 1 and 12, the front where applicable. For example, it may be used 60 wall 33 thereof will be spaced from the rear trans for dimming a set of lights, in which case, when ' parent wall de?ned by the disk 21 to thereby pro the circuit closer is positioned across the contacts vide a chamber 34 between said walls. 4-?4, the lights will operate at a lower brilliancy The front wall 33 of the cap 3| is provided than when positioned across the contacts 3?3, with suitable perforations or openings, generally because of the resistances l1 being? imposed in indicated by the numerals 35 and 36. These the circuit. . 6.. openings represent suitablev indicia as, for ex It is also to be noted that the indicating means ample, the openings 35 may be shaped to form the herein disclosed has no electrical connections letters LO, indicating a low heat or a low speed with the electric circuit. ' It operates independ-l circuit, while the openings 36 may be shaped ently of the circuit, the small disk 31 rolling by 70 to form the letters HI, indicating a high heat or gravity from one side to the other, as shown in high speed circuit. Figures 3 and 5, when the operating member i8 is Means is provided within the chamber 34 for operated to rotate the circuit closer 6. selectively closing the indicia openings 35 and 36 and comprises a small disk 31 mounted to roll upon the edge portions 39 of a semi-circular mem We claim as our invention: 1. The combination with a switch comprising a plurality of sets of contacts, a circuit closer, 3 2,109,054 and a rotatable operating member for selectively moving said circuit closer into engagement with said sets of contacts, of means embodied in the construction of said member and forming a chamber, and a gravity operated element in said chamber movable upon rotation of said operat ing member to thereby indicate ?the position of the circuit closer with respect to said sets of contacts. 2. A switch comprising a plurality of contacts, 10 a circuit closer therefor, a rotatable member? for selectively moving said circuit closer into en gagement with said contacts, said member hav ing a chamber therein, one side of which is de ?ned by an opaque wall having suitable open ings or windows therein, and a gravity~ operated element in said chamber cooperating with said openings or windows to indicate the position of the. circuit closer with respect to said contacts. 3. A switch comprising a plurality of contacts, a circuit closer therefor, a rotatable operating member for selectively moving said circuit closer into engagement with said contacts, said operat ing member comprising an inner transparent wall and an outer opaque wall, means spacing apart said walls to provide a chamber there between, said opaque wall having spaced open ings or perforations therein representing suit able indicia, means for illuminating said cham ber whereby light ?may be emitted through said 10 openings, and a gravity operated disk in said chamber normally closing one of said indicia openings and adapted to be actuated by rotation of said operating member to thereby selectively open or uncover said indicia openings, whereby the position of the circuit closer with respect to said contacts may readily be noted. EDGAR M. SORENG. CARL WILL.