Патент USA US2405641код для вставки
Aug. 13, 1946. ' -F_ A, CQNTERMAN ' ' 2,405,641 ROLL PRESSURE ADJUSTER FOR WRING'ERS‘ ' Filed July 51, 1943 I 56.3. @W 2,405,641 Patented Aug. 13, 1946 UNlTED' STATES PATENT OFFICE’ ROLL PRESSURE ADJUSTER FOB WRINGERS Fred A. Conterman, Jamestown, N. Y., assignor to Jamestown Metal Equipment Company, Inc., Jamestown, N. Y., a corporation of New York Application July 31, 1943, Serial No. 496,900 3 Claims. (Cl. 68-262) 1 upper surface of each heating I4 is engaged by an end portion I‘! of a roll spring [8. Directly over the central portion of the spring This invention relates to an improvement in washing machine wringers and particularly to a roll pressure adjuster. It is common practice to provide wrin‘gers with l8 the cover may be formed with a reinforced manually operable adjusters by which to vary the 5 portion, such as indicated at l 9, and this portion provided with an opening 2|, the inner end of roll pressure through adjustment of the pressure which is .counterbored, as at 22. of a roll spring. However, it is considered ad vantageous to the operator of a wringer to be able to determine the roll pressure best suited for a given type of clothes without the need of run A substan tially circular adjusting knob 23 is located exte riorly of the cover l2. This knob, as shown, is hollow and includes diametrically opposite aper tures 24. Within the knob is a centered ?xed hub 26 that is adapted to receive an internally threaded sleeve 21.‘ The sleeve 21 is secured ning a trial piece through therolls. To this end, the present invention has been developed and, in addition to providing necessary roll pressure ad against rotation and displacement with respect justing means, provides, through an index struc ture, visual markings by which an operator may 15 to the hub in any suitable ‘manner, as by a set screw 28. The lower end of this sleeve is formed determine the roll pressure for which the ad juster has been set. with an annular rim or flange 29. ' The central portion of the spring I8 is enclosed by a pair of straps 3| that include abutting, up invention to provide aroll adjuster that is freely operable, regardless of the roll pressure to which 20 standing ?anges 32. These ?anges are formed with concentric, transverse» openings through the adjuster has been previously set. It is also which a, horizontally disposed rod 33 projects. A an object of the invention to provide an adjuster threaded shaft 34 projects into the sleeve 21. that discloses to the wringer operator the extent This shaft, at its lower end, terminates in a fork of roll pressure through suitable markings at any given position of adjustment. It is also an ob 25 like portion consisting of a pair of spaced apart, parallel arms 36. The lower end of each of these ject of the invention to provide a roll pressure It is an object and advantage of the present arms is arcuate, the lowermost portion of the arc adjuster which may be changed from one mark contacting horizontal portions of the straps 3i. ing to another and readily indicate to the oper ator, without trial, that the roll pressure is as 30 Concentric openings in'the arms 36 are of a size to receive rod 33. The rod is prevented from ax desired for the type of clothes to be passed ial displacement with respect to straps 3| and through the wringer. arms 36 in any suitable manner, as by a struck Other objects and advantages of the invention up portion 31 and cotter pin 38. Adjacent the counterbored area of the reinforced portion I9, will be more fully understood from a considera tion of the following speci?cation, taken in con junction with the accompanying drawing; and in which’ Fig. 1 is a fragmentary vertical sectional view CA the cover includes a pair of depending arms 39‘. These arms are spaced to receive an end of the rod 33, and, serve as a guide for the rod during use of the adjuster. of the top portion of a wringer in which one form ' The other end M of the rod 33 may be of re of the invention is embodied; Fig. 2 is a fragmentary front elevational view 40 duced diameter to mount one end. of an indexing pin 42. This pin projects upwardly through a of the top portion of. a wringer, parts being broken suitable opening in the reinforced portion IQ of away to disclose certain structural details; and the cover into the interior of the knob 23. The Fig. 3 is a vertical sectional view taken sub pin is provided with‘ suitable index markings, stantially on the line 3—3 of Fig. 1. 45 such as indicated at .43, these markings being vis Referring to the drawing, the reference nu ible through one or the other aperture 24 in the meral I0 is employed to generally designate a rim of the knob. , wringer in which one form of the invention is In assembling the structure, a bearing washer embodied. The wringer comprises a body por 44 is seated in the counterbored area 22 prior to tion H and a removable cover l2. For conven ience of illustration, only that portion of the wringer is shown in the drawing that concerns 50 projecting the sleeve 21 through the opening 2|. When the sleeve has been properly installed, the rim or flange 29 thereof abuts washer 44. A fur ther bearing washer 46 is mounted on the sleeve upper roll 13 mounted in end bearings M, these 21' and rests upon the upper surfaceof the rein bearings being located in channel guides l 6. The 65 forced portion lil. When the interior parts of the the invention, and such disclosure includes an 2,405,641 3 4 . structure have been assembled, the knob 23 is " mounted by enclosing the upper portion of the sleeve 21 in the hub 26 and turning dOWn the set screw 28. - The adjuster is operated by rotating knob 23 in one or the other direction, and such rotation feeds the‘ shaft-34 upwardly or‘ downwardly; of the sleeve 21. If movement is in a direction to move the shaft downwardly, the arcuate ends of arms 36 a ply pressure to depress the central portion of t e spring l8 and thus increasethe. pressurev ,ture and including means preventing displace ment from a position of close proximity with said structure, a shaft having threaded engagement with said member and being axially movable by rotation of said member, said shaft having oper ative engagement with said spring, and means preventing rotation of said shaft during axial movement thereof, said means mounting an in dicator pin in a manner to be axially movable with and to the same extent said shaft is mov able, said pin being capable of such movement of t 6 spring ends I‘! on the bearings M ‘of the; . : with-‘respect to said member as to give indication upp ‘ r wringer roll I3. Since the top roll is in " contact with the lower roll (not shown), pressure 7 applied in this manner willi'be- directly'transei of the extent to which said shaft has actuated said roll pressure spring. 2; Inagwringer structure having a pair of ad justable rolls and a spring operable to exert a yielding pressure on said rolls, an adjusting device for ‘said spring comprising a hollow member to feed the shaft 34 downwardly of the sleeve 21', pin 42 will also move downwardly and thus‘ an-‘ mounted '_8Xi381‘l01‘]¥ of said structure for manual other marking 43 will be. made visible through one 20 rotative movement, a shaft having a threaded end engaged with and enclosed, by said member and of the apertures 24. For example, if it is desired mitted to the rolls. It will, of" course, be appre-' ciated that as the knob is rotated in a direction a’ to wring out clotheshaving inconsequential bulk, being axially movable by rotation of said member, or to wring out heavier clothes to, agreater degree of’ dryness, the knob 23 is rotated until the mark ing “3”‘is .visible through one of the apertures 24. If a lesser degree of 'pressureiof ‘the rolls is de sired,v reverse rotation of. the knob 23,- will bring said shaft being joined to said spring in a manner to alter the tensionv thereof .upon rotation of said member, andan, indicator pinpjoined to and mov themarking “2” 'or="1”winto registry-withone of the openings 24. ‘.It will be clearly understood and markings on said pin register-able with an that a wringeroperator may repeatedly obtain , theextent of pressure applied tosaid rolls, the same degree of? roll pressure by rotating the knob 23 in one direction'or the other until the 3._ In a wringer structure having a pair of ad justablegrolls and a spring operable ,to exerta yielding pressure on said rolls,.an adjusting de vice, for said spring comprising a hollow rotatable member located exteriorly, of said structure and desired‘marking, registers with one of the open ings 24. ; Although applicant has shown and described his invention in its application to one. type of wringer, it will be understood that variations of the structure maybe made and are contemplated in the-application of the structure to other wring able. v.withsaid; shaft, said pin projecting through said structure into the interior of said member, aperture in said member andserving to indicate havingmeans preventing axial. displacement with respect to said structure, a non-rotatable shaft projecting into and having a threaded end en closed by said member, said shaft being joined to saidspring and movable in the. direction, of its length by rotation of said member to alter the spirit and scope of the annexed claims. pressure of said rolls, and an indicator pin joined Having thus set forth my invention what 1 claim as new and for which I, desire protection to and movable in therdirection of movement of said shaft,.said pin projecting into said member by Letters Patent is: 1.- En. a-wringer structure having a pair of ad 45 and includingv markings adjacent the. upper end registerablewith an aperture in, said member to justable rolls and a spring operable to exert a indicate the pressure of said springas applied to yieldinglpressure on said rolls,‘an adjusting de ers insofar as such variations are within the vice for said‘ spring comprising a manually ro tatable" member mounted exteriorly of said struc said rollsl _, , FRED A. CON'I‘ERMAN. .