Jan. 7, ‘1947. ' 1G, 5, HANN’ER I ' 2,414,040 ADJUSTABLE HANDLE FOR THERMOSTATS Filed June 26, 1945 INVENTOR. BY Patented Jan. 7, 1,947 2,414,040 UNITED STATES PATENTO’FFICEA ADJUSTABLE HANDLE, FOR THERMOSTATS “ George Dominion E. Hanner, Electrical Mans?eld, Manufacturing, Ohio, assignor Inc” toa ‘ corporation of Ohio Application June-26,1945, Serial No. 601,700 6 Claims. (Cl. 744-525) 2 My invention relates to improvements in ad justment assemblies for thermostats, and in par ticular to an adjustable handle fastened to the temperature adjusting screw of thermostats. It is an object of my invention to provide a thermostat adjustment assembly having an ad justable handle which may be used on electrical appliances of different sizes. Another object of my invention is the provi ‘ , 4. permits the operator to adjust the thermostat for the desired temperature of the appliance from outside the electrical appliance. My ad justable handle |l| handle plate 3|, a clamping‘ screw 33. tened to the lever comprises a lever arm 3|), a thermostat plate 32 and a The handle plate 3| is fas arm 3!] and the thermostat plate 32 is fastened to the thermostat tempera ture adjusting screw l3.‘ The clamping screw 33 sion of a handle which may be adjusted as to its 10 operatingly connects the handle plate 3| and the length to accommodate appliances’ of di?erent sizes. A further object of my invention is the provi» sion, of an adjustable handle which may befas~ thermostat plate 32. The clamping screw 33 may be a sheet ,metal screw or other suitable screw means which will clamp the plates together. The lever arm 3|! extends from ‘the thermo tened to the thermostat temperature adjusting 15 stat temperature adjusting screw |3 outwardly screw for operating the screw from a remote through'the electricalappliance In and is ter point. ‘ minated in a ?nger grip knob 36, providing man A still further object of my invention is the ual control of the lever arm from outside‘the ' provision of an adjustable handle which may be electrical appliance. The lever arm may be ‘fastened to the thermostat temperature adjust 20 stamped from sheet metal or constructed by other ing screw after pre-set adjustments of the ad, suitable means. The internal end of the lever justing screw have been made and which may be arm, or that end which encounters the thermo used for regulating the screw through a range stat, has openings 35, 31, and 33. The opening of operating temperatures. 35 is located nearest the knob and the opening Other objects and a fuller understanding of my 38 farthest from the knob. These openings are of ‘invention may be had by referring to the fOHUl/V". substantially the same diameter and are longitu~ ing description and claims taken in conjunction with the accompanying drawing, in which: Figure 1 is a front elevational view of an elec trical appliance embodying the features of my in vention, parts being shown in cross-section; Figure 2 is a view taken along the line 2-2 of Figure 1 showing my adjustable handle fastened to the thermostat temperature adjusting screw; Figure '3 is a view of the lever arm used in my adjustable handle. , . ‘ Figure 4 is a view of the handle plate which is fastened to the lever arm shown in Figure 3; Figure 5 is va cross-sectional view taken along dinally spaced atdifferent operative lengths from the ?nger-tip control knob, 36. If an adjustable handle ‘having a medium. operative length is re quired, the lever arm may be positioned with the thermostat temperature adjusting screw extend ing through opening 31. If an adjustable handle having a short operative length, such as illusé trated in Figure 1 for a small electrical appli , ance is required, the thermostat temperature ad justing screw l3 may be extended through open ing 35,. If an adjustable handle having a long op erative length is required, the lever arm may be positioned with thermostat temperature adjust the line 5—-5 of Figure 4; ‘ 40 ing screw extending through opening 38. It is -_ . Figure 6_ is a view of the thermostat plate which understood that only one of these longitudinally is fastened to the thermostat temperature ad justing screw; and Figure 7 is a cross-sectional View taken along the line 1-1 of Figure 6. With reference to my drawing, and in particu lar to .Figure'l, the reference character In repre sents an electrical appliance, such as for example ‘ a waffle-iron,'which has a heated plate I | con trolled by. a" thermostat l2 having an adjusting temperature screw l3. My adjustable handle I4 is fastened to the thermostat temperature ad spaced openings will be‘used on. any particular electrical appliance, but that the adjustable handle is interchangeable in electrical appliances of different sizes. The handle plate 3|, which is carried by the lever arm 33, has a center opening 40 and a raised fastening strap portion '4|. The-handle plate 3| maybe stamped from sheet metal‘ or otherwise ‘constructed. The center opening 40 is substantially the same diameter as the open ingsf35, 31, and 38. The handle plate 3| has curved slots 43, which extend partially about the The adjustable handle l4, when fastened to" center opening 40. The clamp screw 33 extends the thermostat temperature adjusting screw |3,> .55 through oneof vtheselslots and into the thermo justing screw. ' ' 2,414,040 4 stat plate 32. I have used curved slots to permit the second plate whereby angular movement of angular adjustment of the operating handle with respect to the thermostat temperature adjusting the adjustable handle turns the screw means for regulating the thermostat. screw l3. stat employed in appliances of different sizes, a temperature adjusting screw for regulating the said thermostat, a thermostat plate carried by the temperature adjusting screw and having at least The thermostat plate 32, which is fastened to the thermostat temperature adjusting screw l3, has an opening 50 in the center thereof with a ?ange 5! about that opening and extending from 2. In an adjustment mechanism for a thermo a hole therein, a lever arm having longitudinally one side thereof. The inside surface of this spaced openings therein, said adjusting screw ex ?ange and the opening 50 has reference character 10 tending through one of the said spaced openings, 53 and engages the surface of the said screw l3. handle plate means fastened to said lever arm This thermostat plate may be pressed onto the and having slot means cooperating with the said thermostat temperature adjusting screw, or the hole for angularly aligning the said thermostat plate 32 may be fastened thereto by other suit able means. The thermostat plate 32 has holes 15 plate with the handle plate, screw means for in sertion into the said slot and the said hole for 52 annularly spaced about the ?ange. These operatively fastening the said plates together, holes are located to permit the alignment of any whereby movement of the said lever arm turns two adjacent holes with one of the curved slots the said temperature adjusting screw for regulat 43 in the handle plate 3|. However, in actual ing the thermostat. practice, the clamp screw 33, which extends 3. In an adjustment mechanism for a thermo through the slot 43, engages only one of these stat employed in appliances of different sizes, said holes 52. thermostat having a temperature adjusting screw, In assembly, the thermostat plate 32 is pressed a thermostat plate carried by the temperature onto the thermostat temperature adjusting screw adjusting screw and having at least a hole there Hi. The temperature adjusting screw I3 may be 25 in, a lever arm having a handle plate fastened set approximately to the correct temperature be thereto, said lever arm having a plurality of Ion fore the handle i4 is fastened thereto. The ad gitudinally spaced openings on one end thereof to justable handle M is positioned about the tem-_ receive said adjusting screw, said openings pro perature adjusting screw with the handle plate 3! next adjacent the, thermostat plate 32, and 30 viding means whereby the operative length of the lever arm may be regulated for appliances of dif with the ?ange, 5| extending through the opening ferent sizes, said handle plate having slot means iii! and the opening 35. The ?ange 5| serves as a cooperating with the said hole for angularly pivot bearing for the angular adjustment of the aligning the thermostat plate with the handle adjustable handle. After the handle has been plate, screw means for insertion into the said slot angularly positioned with respect to the adjust and the said hole for operatively fastening the ing thermostat temperature screw [3, the clamp said plates together at a ?xed angular position screw 33 may be inserted through one of the whereby movement of the said lever arm turns ‘ curved slots 43 and into one of the holes 52. This the temperature adjusting screw for regulating set or clamp screw 33 ‘may be tightened to oper atively fasten the handle plate 3| to the thermo— 4:0 the thermostat. 4. In an adjustment mechanism for a thermo stat plate 32, thus connecting the adjustable or stat employed in appliances of different sizes, a operating handle. M to the thermostat adjusting temperature adjusting screw for regulating the temperature screw !3. The operator may regu said thermostat, a thermostat plate carried by the late the temperature of the heated plate I I in the temperature adjusting screw and having at least electrical appliance l0 by moving the handle I4 angularly about the electrical appliance. Although I have described my invention with a certain degree of particularity in its preferred form, it is understood that the present disclosure of the preferred form has been made only by way of example and that numerous changes in the de tails of construction and the combination and ar rangement of parts may be resorted to without departing from the spirit and the scope of the in vention as hereinafter claimed. a hole therein, a lever arm for cooperating with the temperature adjusting screw to provide ?n ger-tip control of the thermostat from a remote point, said lever arm having openings therein through which the said adjusting screw may ex tend, said openings providing means whereby the operative length of the lever arm may be regu lated by extending the temperature adjusting screw through one of the openings arm, said lever arm having handle fastened thereto, said handle plate ing slot means cooperating with the in the lever plate means means hav . said hole for 1. An adjustable handle for a thermostat com angularly aligning the said thermostat plate with prising, an arm having at least an opening there the handle plate means, and clamping screw in, a first plate with a center opening in the means for insertion into the said slot and the said center thereof and with at least an aligning open 60 hole for operatively fastening the said plates to ing near the circumference thereof, said ?rst gether at a ?xed angular position with respect to plate being fastened to thesaid arm with the cen the temperature adjusting screw. ter opening being aligned with said opening in the 5. A mechanism for operating a temperature arm_ a second plate having a center opening in adjusting screw for a thermostat employed in ap the center thereof with a ?ange about the center pliances of different sizes, said mechanism com opening, and extending outwardly from the sur prising a ?rst plate member adapted to be fas face, said second plate having at least an aligning tened to the temperature adjusting screw, a lever What is claimed is: opening ‘for alignment with‘ the said aligning arm having longitudinally spaced openings there opening in the said ?rst plate fastening means in through which said adjusting screw may ex cooperating with the said aligning openings for tend, said-longitudinally spaced openings provid fastening the said plates together, said flange ‘ex 70 ing means for adjusting the operative length of tendingv through said center opening of the ?rst the lever arm by extending the adjusting screw plate and engaging‘ the arm, temperature adjust through one of the spaced openings in the lever ing screw means extending through the center arm,‘ _.a- second plate member- non-rotatably ‘opening of the‘ second plate and. engaging the thermostat, said screw: means being fastened. ‘to 75 mounted on saidleveruarm‘and longitudinally 5 2,414,040 movable thereon, said second plate member and said ?rst plate member providing means for an gularly adjusting the lever arm with respect to the temperature adjusting screw, and means for fas tening the plate members together at a ?xed an gular position. 6. A mechanism for operating a temperature adjusting'screw for a thermostat employed in ap— pliances of different sizes, said mechanism com prising, a lever arm having longitudinally spaced 10 openings therein through which said adjusting 6 screw may extend, said longitudinally spaced openings providing means for adjusting the oper ative length of the lever arm by extending the ad justing screw through one of the spaced openings in the lever arm, angular adjustment means for angularly adjusting the lever arm with respect to the temperature adjusting screw, said angular adjustment means operatively connecting the said lever arm to the temperature adjusting screw at a ?xed angular position. “ GEORGE E. HANNER.