Abstract: A universal, knob-dial control member for association with the control shaft of a cold control regulator wherein the knob member is uniquely configured so as to be adaptable to be used on a plurality of cold control regulators in and of itself or alternately, adapted to have the dial member disassociatible which accommodates still other cold control regulators. The provision of the knob-dial control member in kit form, having selectable knob members, provides a means whereby inventory is substantially reduced and a service man has the ability to service a large number of cold control regulators without the need of having a large number of specialty repair and replacement parts.

Abstract: A push-to-turn knob assembly comprising a tubular hub disposed for attachment to an axially inserted end portion of a rotatable shaft and having a slotted end portion releasably engaged by a plurality of resiliently biased wedges annularly spaced apart within an encircling race, the hub and race being enclosed by an axially movable knob shell having projection means for disengaging the wedges from the hub and having keying means for engaging the hub and rotating the attached shaft to a desired setting.

Abstract: A knob adapted for mounting on a control shaft of a control device permits push-pull and rotary functions of the device to be selected. A rotatable skirt section through which the shaft extends covers unselected indicia on a display panel. A window on a portion of the skirt permits only a selected indicia to be seen. Upwardly extending arm members are attached to the skirt section, and are slidably received within channels of an overlying knob section. The overlying knob section is slidable upwardly and downwardly upon the upstanding arm members, but engages the arm members when the knob is rotated to facilitate rotational selection of the control functions. A spring biasing means is provided to maintain the skirt portion in a position adjacent the display panel to reduce the escape angle from under the skirt of light which may be provided within the display panel to illuminate the indicia, and to reduce paralax in viewing the selected indicia.

Abstract: Snap-on fastener apparatus for removably holding tools on a drive shaft turned by the motor of a household electrical appliance, particularly shown as a food processor with multiple uses, in which interchangeable rotary tools of various shapes and types are employed as a function of the different food preparation tasks to be performed. A protective sheath surrounds the drive shaft and a sheath portion of the tool hub engages upon the sheath of the drive shaft. Fastener apparatus enables the user to affix the desired tool upon the drive shaft sheath in a snap-on manner for removably holding the tool against axial displacement relative to the drive shaft and enables the rapid and convenient installation or removal of the tools without the use of accessories. As the tool is being introduced onto the drive shaft, a flange spreads a plurality of elastic retainer clips which then snap back to reclose over the flange when the tool is fully installed for retaining it in position.

Abstract: A generally H-shaped knob spring is provided which comprises two flat members joined by a center bowed member. The spring is received in an undercut slot adjacent one side of a recess in a knob for receiving the end of a shaft, the bowed portion extending into the recess. When the shaft is inserted in the recess, the bowed portion of the spring is flattened out causing the end strips to be bent to bite into the surface of the slot and the surface of the shaft adjacent the slot wherein the spring releasably grips the knob and the shaft to hold the knob securely on the shaft so that it does not wobble or twist thereon.

Abstract: A knob is used on an adjustment member rotatable about an axis and having a periphery formed with a plurality of radially outwardly open recesses. This member may be the adjustment member of a motor-vehicle seat-angle adjuster. The knob comprises an annular collar closely surrounding the periphery of the adjustment member, a plurality of entrainment formations projecting inwardly from the collar into every other recess, and a plurality of hooks each engaging axially through the remaining recesses with the member. The hooks and the formations together transmit angular force between the member and the knob which is made of synthetic-resin material as one integral piece.

Abstract: A potentiometer has a disc mounted on the shaft. A knob embraces the end of the shaft and is biased away from the disc. The knob is slidable along the shaft into engagement with the disc so that rotation of the knob operates the potentiometer.

Abstract: A rotatable knob assembly having a knob easily mounted to the mounting section of an operating member, with the mounting section having two adjacent parts with a first part having a generally elliptical cross section and the other part having a generally circular cross section and with the knob having an open-ended cavity and an upstanding ridge on the inner surface of the cavity surrounding the wall which is of generally the same perimetrical length as the generally equal perimetrical lengths of the two parts of the mounting section. The knob is formed of a material which is capable of being distorted whereby placement of the knob on the mounting section by relative insertion of the mounting section into the cavity causes distortion of the locking ring to pass over the generally elliptical cross section part and the locking ring then returns to its normal shape to engage against the generally circular part of the mounting section and to lock behind the elliptical section.

Abstract: Disclosed is an apparatus for holding knobs for turning a channel selector of a television receiver or for similar purposes. A flat plate having a first group of projections adapted to bear against a notched flat portion of a rotatable shaft (tuner shaft) having a semi-circular section, and a second group of projections arrayed to bear against a portion of knob into which the shaft is inserted is employed to obtain a reliable coupling of the shaft and the knob.

Abstract: A rotary-type control for a headphone earpiece has an indexing dial which is loosely keyed to the control shaft of a potentiometer and extends partially through an opening in the cover of the earpiece to permit the wearer of the earpiece to manually control the potentiometer. The loosely keyed indexing dial is centered in the opening in the cover of the earpiece by the cooperative action of a journal bearing on the underside of the cover, a raised hub-like projection on the top of the indexing dial which is received and journaled in the bearing and a spring which exerts an upward force on the bottom of the dial keeping the hub-like projection journaled in the bearing so that the dial is level and centered in the opening in the cover.

Abstract: A force-displacement controller knob for use in isometric control devices provided. A controller knob component is mounted on existing control shafts and the knob itself contains a pair of compressible, resilient washers separated by and contacting a rigid washer in a chamber in the knob so that force appied in any direction on the knob will be transferred to the control shaft in a resistance ratio determined by the compressibility of the resilient washers.

Abstract: A push-to-turn knob design for a rotary switch to prevent accidental actuation of the switch by requiring a two-step operation sequence. This operating function is obtained without modifying the design of the rotary switch. Hence, a standard rotary switch can be easily converted to a push-to-turn operating sequence.

Abstract: The knob comprises a body which cannot turn the control shaft unless the body is first pushed in. A brake prevents turning of the knob body when the body is in normal condition. Upon pushing the body rearwardly, the brake is disengaged to allow turning of the knob. Upon releasing the body, spring means projects the body forwardly back to normal condition in which the brake prevents the body from turning. Spring pressed balls allow the body to turn without turning the control shaft upon exerting excessive torque on the body to thereby prevent damage to the controls. Means is provided to limit turning of the control shaft to a predetermined angle.

Abstract: A knob for mounting on the end of a shaft, especially a shaft of the type which extends through an opening in a panel and must be moved axially and rotated during operation thereof. The knob includes a hub, a shaft receiving socket formed in the hub and a web extending from the hub and terminating in a rim. The web is formed so as to be sufficiently flexible and deformable to permit the hub and the rim to move axially relative to each other. An annular dial may cover most of the flexible web. The knob and web may be formed in one piece, preferably of plastic or they may be separate pieces fastened together. When separate pieces, the knob may be plastic and the web may be spring steel.

Abstract: A hollow knob is provided for use on control shafts and the like. The knob comprises two hollow sections of plastic material and a metal insert threaded for receipt of a control rod or the like. The two hollow knob sections are provided with reinforcing ribs running at right angles to one another, and readily secured at crossover points by means of sonic welding. The metal insert is held securely in place in a well in one of the two plastic portions, being firmly trapped in place, and reinforcing the plastic sections.

Abstract: A control device having a support and a first selector member rotatably carried by the support. A second selector member is rotatably carried by the support and is axially movable relative to the support and the first selector member. The selector members are coupled together in a manner to cause the first selector member to rotate in unison with the second selector member when the second selector member is rotated. A pair of spaced spring members are disposed between and respectively engage the selector members to tend to maintain the second selector member axially away from the first selector member. The first selector member has a cylindrical part extending therefrom and the second selector member has a C-shaped shaft rotatably disposed against the cylindrical part of the first selector member.

Abstract: A weighing scale is provided having a number of features including a folding column or pillar, a new type of weighing mechanism, a new type of beam scale, and a new type of knob assembly for weight indicating means for a beam scale, all arranged in a compact form which is completely portable and adapted for packing, shipping and storage.

Abstract: A control component with a "D" shaped shaft is to be fitted with a control knob that was designed to fit onto a "dog-bone" shaped shaft. A resilient adapter in the form of a tubular sleeve has a special bore to fit on the shaft and a special configuration to fit into the bore of the knob so as to prevent relative rotational movement therebetween.

Abstract: A push-to-engage device comprising a hollow knob having axially disposed therein an independent bushing provided with a fastener for bindingly engaging an inserted end portion of a rotatable shaft and with a plurality of recesses disposed for engagement with keys protruding inwardly from the knob, and an external resilient device coupled to the knob for positioning the keys in spaced relationship with the recesses in the bushing.

Abstract: A shift control device adapted for installation on a conventional pneumatic transmission control switch for trucks to convert its lever action to an easily controllable twisting or turning action and one that prevents inadvertent "down-shifting." The device includes a ball-like knob adapted for connection to the head of a standard pneumatic transmission control with a radially extending fork portion that fits over the lever for the control. The knob is rotatably supported on a central pin attached to the control head so that turning it will move the control level, its travel being limited so that downward force must be applied on the knob before the control lever can be moved to its low range position.

Abstract: A rod-like member of variable adjustable length has a handle at one end. A head part at the opposite end of the member cooperates with the dial of a TV set in a manner whereby a user in an area distant from the set selectively rotates the dial via the member.

Abstract: An electrical circuit breaker having a thermal element which on being heated by fault current trips the breaker, and including an adjustable member to vary the action of the thermal element thereby to vary the rating of the breaker, said adjustable member comprising a slide displaceable by an eccentric boss rotatable by means of an external knob.