US1744458A

US1744458A - Doorknob

Info

Publication number: US1744458A
Application number: US252898A
Authority: US
Inventors: Ellingson Elling
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-02-08
Filing date: 1928-02-08
Publication date: 1930-01-21
Anticipated expiration: 1947-01-21

Description

Jan. 2l, 1930.

E. ELLINGSON DOORKNOB Filed F'eb. 8, 1928 Patented Jan. 21, 1930 .UNITED STATES ELLING ELLINGSON, OF SAN FRANCISCO, CALIFORNIA DOORKNOB Application led February 8, 1928.

My invention relates to improvements in door knob construction wherein glass rosettes and knobs may be efficiently mounted and held upon a knob stem to obtain a simple and eiiicient structure presenting an attractive all-glass appearance.

The primary object of my invention is to provide an improved door knob construction and assembling mea-ns. lo Another object is to provide an improved construction which will afford simplified means for securing glass knobs upon the ends of a knob stem and which will eifectively secure the knob and stem against turning rela- `tive to each other and impart positive turning movement from one to the other.

A further object is to provide an improved device of the character described which will permit use of glass rosettes to obtain a more .ittractive outward appearance and provide a knob having an all-glass finish which may be more easily kept clean and sanitary.

A still further object is to provide an improved device which is simple and economical in construction and efficient in operation, and

which may be quickly and easily installed or taken apart.

I accomplish these and other objects by .i means of the improved device disclosed in the I drawings forming a part of the present application wherein like characters of reference are used to designate similar parts throughout the specification and drawings and in t which y Fig. 1 is a broken sectional view of my improved door knob construction as installed upon a door;

Fig. 2 is a view of the inner end of the -fknob; Fig. 3 is a view of the inner end of a rosette;

Fig. 4 is a plan view of the knob engaging washer;

Fig. 5 is a plan view of a bearing plate; and

Fig. 6 is a view of the outer end of a bushing.

Referring to the drawings, the numeral 1 is used to designate in general a door having l the usual knob opening 2 formed therethrough. A square stem 3 extends through Serial No. 252,898.

the opening 2 and is arranged to latch mechanism of any suitable form in the well known manner. As the latch mechanism forms no part of the present invention, and as my improved knob construction is adapted for use with substantially all forms of mechanism wherein a square knob shaft is used, no disclosure of such latch mechanism is herein necessary and I have omitted such mechanism from the drawings.

The square stem 3 is threaded upon its corners as at 4- to receive bushing 6' threaded thereon. Bearing plates 7 are secured over the ends of the opening 2 by means of screws or other suitable securing members 8. Bearing flanges 9 are formed upon the plates 7 and arranged to extend a slight distance into the ends of the opening 2, said flanges being arranged to rotatably engage and support the bushings 6, preferabl by means of reduced bearing portions 6 ormed upon the inner ends thereof.

Rosettes 11 are fitted over the outer ends of the bushings 6 to cover said bushings and the plates 7. The rosettes have central openings litting around the outer ends of the bushings and permitting the bushings to be freely rotated therein. The outer ends of the rosettes are arranged substantially flush with the ends of the bushings, and the outer diameter of the rosettes extends well outside of the outer diameter of the bearing plates 7 so that said plates and the bushings are fully covered by the rosettes. The rosettes are preferably constructed from glass and have a plurality of recesses 12 formed upon the inner side thereof to receive and engage outwardly extending lugs 13 formed upon the plates 7 whereby the rosettes are held against turning.

Knobs 14, preferably made of glass, are mounted upon the outer ends of the stem 3.. The knobs have Aaxial openings 16 formed therethrough, the inner ends of the openings being enlarged as at 17 to fitover the ends of the stem 3. Securing members 18 are applied through the openings 16 and threaded into the ends of the stem 3 to secure the knobs upon said stem. i

A washer 19 having a square opening 21 formed therein is fitted onto the stem 3 between the inner end of each knob 14 and the adjacent bushing 6. A plurality of ribs 22 are formed upon the washers to engage corresponding recesses 23 formed in the inner end of the knob 14 and to seat upon ribs 24 formed upon the outer ends of the bushings 6. The Washers 19 are arranged to be held against the ends of the bushings 6 and to exlo tend outwardly and slightly overhang the ad- .acent rosettes, said Washers being clamped etween the knobs 14 and the bushings 6 when the securing members 18 are screwed tightly into the ends of the stem 3. In Fig. 1 of the u drawings, the section is taken through the apex of ribs 22 o1' the washers 19 to show the manner in which said ribs engage the ribs 24 of the bushing 6 and the recesses 23 of the knob, the body portions of the Washers seating Hush upon the ends of the bod portions of the bushings and the adjacent edlges ot the rosettes.

In operation, the bushings 6, engaging the bearing plates 7 form a substantial bearing g for the knobs and stem and avoid any objectionable side play or axial looseness of the knobs and stem. W'hen the members 18 are screwed through the knobs into the ends of the stem, the knobs are moved to press the washers 19 against the ends of the bushings, the ribs 22 being engaged and held by the recesses 23 in the knobs whereby the knob is prevented from turning relative to the stem and insuring that any turning movement imparted to the knob will be imparted to the stern 3 and the bushings 6. At the same time, the overhanging edges of the washers engage the outer ends of the rosettes and hold thern seated against the sides of the door and in engagement with the lugs 13. As the rosettes fit onto the outer ends of the bushings, which in turn are held against side and axial movement by the bearing plates 7, no further curing means are necessary. This permits the use of a glass rosette matching with the glass knobs 12 and presenting an all-glass appearance which is very attractive and which is easily kept clean and sanitary.

When either knob 14 is turned, the turiiinf.r movement is imparted through the ribs 22 to the adjacent washer 19 which in turn turns the stern 3. The rosette is held against rotation by the lu vs 13.

If it is desire to remove the stem il from the door, this may be accomplished by merely removing the securing member 18 from one of the knobs, thereby permitting said knob and the adjacent rosette and bushing to be removed, andthe stem Withdrawn from the opposite side of the door Without removing the knob from the opposite end of the stemY While I have illustrated the preferred embodiment of my invention, the device is sub` ject to modification in numerous details of construction and without departing from the spirit of my invent-ion. I therefore desire to avail myself of all modifications which may At'all within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is- 1. A door knob comprising` a square knob stem arranged to extend through an opening formed through a door; bushings threaded onto the stem and provided with ribs Yformed upon the outer ends thereof; bearing plates secured upon the door and engaging the bushings; rosettes covering the bushings and bearing plates; knobs mounted upon the ends oii the stem washers mounted between the knobs and the bushings said washers jbeing provided with ribs pressed outwardly 'from one face of each washer and forming corresponding recesses in the opposite tace, said ribs seating upon the corresponding ribs formed upon the adjacent ends of the bushing and engaging recesses formed upon the inner ends of the knobs; and means extending through the knobs and engaging the ends ot the stem for securing said knobs upon the stem and clamping the washers; between the knobs and the bushings.

2. A door knob comprising a square knob stem arranged to extend through an opening formed throufih a door; bushings threaded onto the stem and provided with ribs formed upon the outer ends thereof: bearing plates secured upon the door and having bearing fianges extending into the ends of the openings in the door to rotatably support the bushings; rosettes fitted over the bearing.r plates and bushings, and having their outer faces substantially Hush with the ends of the eef-ushings; knobs mounted upon the ends ot' the stem; washers mounted between the knobs reid bushings, said washers engaging the rosettes around the bushings, and being provided with ribs pressed outwardly from one face of each washer and Jforming corresponding recesses in the opposite face, said ribs seating upon the corresponding ribs formed upon the adjacent en l' of the bushing and engaging recesses in i inner ends ot' the knobs: and means extending through the knobs and engaging the ends oiE the stem 'for securing the knobs upon the stem and clamping the washers between the knobs and the bushings to retain the rosettes and to impart turning movement from the knobs to the stem and bushings.

3. A door knob comprising a square knob stem arra? 1d to extend through an opening formed thi-ugh a door; bushings threaded onto the stem; bearing plates secured upon the door and having hearing flanges extending into the ends of the openings in the door to rotatably support 1the bushings; rosettes titted over the bearing plates and bushings, and having outer faces substantially -tlush with the ends ot the bushings; knobs mounted upon the ends of the stem; washers mounted between the knobs and bushings, said washers engaging the rosettes around the bushings, and being provided with ribs engaging 'l recesses in the inner ends of the knobs; means extending through the knobs and engaging the ends of the stern for securing the knobs upon the stem and clamping the washers between the knobs and the bushings to retain the rosettes and to impart turning movement from the knobs to the stem and bushings; and lugs extending outwardly from the bearing plates and engaging recesses in the backs of the rosettes to prevent rotation of said rosettes with the knobs.

4. A door knob comprising a square knob stem arranged to extend through an opening formed through a door; bushings threaded onto the stem and provided with ribs formed zo upon the outer ends thereof; bearing plates secured upon the door and having bearing iianges rotatably engaging the bushings; ro-

settes fitted over the bearing plates and bushings and having their outer ends substantial- 25 ly Hush with the ends of the bushings; knobs mounted upon the ends of the stem; washers having square holes engaging the stem between the knobs and the bushings, said washers being arranged to overhang the adjacent edges of the rosettes and being provided with ribs pressed outwardly from one face of each washer and forming corresponding recesses in the opposite tace, said ribs seat-ing upon the corresponding ribs formed upon the adjacent ends of the bushing and engaging corresponding recesses iormed in the inner ends of the knobs; and securing members extend ing axially through the knobs and threaded into the ends of the stem 'for securing said knobs upon the stem and clamping the washers between the knobs and bushings to retain the rosettes and to impart turning movement from the knobs to the bushings and stern.

5. A door knob comprising a square knob stem arranged to extendthrough an opening formed through a door; bushings threaded onto the stem; bearing plates secured around the ends of the opening through the door to rotatably engage the bushings; glass rosettes fitted over the bearing plates and bushings upon opposite sides of the door, the outer ends of the rosette being substantially flush with the outer ends of the bushings; washers having square holes engaging the stem adjacent the bushings, said washers being of a diameter slightly greater than the bushings to overhang and retain the rosettes; glass knobs mounted upon the outer ends of the stem; ribs formed upon the washers to engage corresponding recesses formed in the inner ends of the knobs whereby the knobs and stein are caused to turn together; securing members extending axially through the knobs and threaded into the ends of the 65 stern to retain the knobs and clamp the washnature.

ELLING ELLINGSON.