US797305A - Combined door knob and bell. - Google Patents

Description

No. 797,305. PATENTED AUG-.15, 1905. J. 0. MORRIS.

COMBINED DOOR KNOB AND BELL.

APPLIUATION FILED AUG. 4. 1904.

v l Httornegs JOHN O. MORRIS, 0F

RICHMOND, VIRGlNlA.

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`Eapecification of Letters Patent.

Patented Aug. 15, 1905.

Application filed August 4, 1904. Serial No. 219,524.

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Be itknown that l, JOHN O. Molens, a citi- Zen of the United States, residin at Rich m ond in the county of Henrico and State of Virginia, have invented a new and useful Combined Door Knob and Bell, of which the following is a specification.

This invention relates to combination door knobs and bells, and has for its object to improve the construction of such devices whereby the knobs and the spindle may be conveniently assembled and readily fitted to a door. flt is furthermore designed to improve and simplify the bell-ringing mechanism so as to avoid gearing and other complicated constructions.

Another object of the invention is to provide a novel mountingof the knob member at the bell end of the spindle and to connect said knob to the spindle independently7 of the bellringing mechanisn'i, thereby to provide a strong and durable device. i

A still further object of the invention is to provide for adjusting the means for controlling the bell-ringing mechanism so as to accommodate the same to doors of diiii'erent thicknesses.

`With these and other objects in view the present invention consists in the construction and arrangement of parts, as will be hereinafter more fully described, shown in the accompanying drawings, and particularly pointed ont in theappended claims, it being understood that changes in the form, proportion, size, and minor details may be made within the scope of the claims without departing from the spirit or sacrilicing any of the advantages of the invention.

ln the accompanying` drawings, Figure l is a longitudinal sectional View of a combined door knob and bell embodying the features of the present invention and litted to a door. Ylig. Q is adetail perspective view of the knobspindle. Fig. 3 is a detail perspective view of the bell-ringing mechanism. Fig. a is a cross-sectional view on the line a 4C of Fig. l.

llrike characters of reference designate corresponding parts in each and every ligure of the drawings.

ln carrying out the present invention lemploy a tubular spindle 1, which for the sake of, inexpensivenessis bent up from a sheet of metal so as to produce a cylindrical bore and a polygonal exterior. Urdinarily knob-spindles are first cast and then bored longitudinally when a tubular spindle is required,

which is a very expensive method, and therefore l prefer to form the tubular spindle from a blank of metal, which obviates the expensive step of boring the spindle.

At one end of the spindle there is the bell member 2, which is formed of suitable bellmetal and is substantially semispherical in shape, with an integral tubular stem 3 projected from the back thereof and having a polygonal .interior to slip over and snugly tit the polygonal exterior of the spindle l. A suitable screw 4 is passed through the stem 3 and engaged with the .spindle l to prevent end wise displacement of the bell member. Upon the interior of this bell member there is a plurality of integral projections 5, preferably four in number, which are designed to be struck by the bell-ringing mechanism, so as to sound the bell in a manner as will be hereinafter explained. This bell member is housed within a knob (5, which is formed from a blank of metal having a plurality of radial slits or notches intersectii'ig thel outer edge thereof to produce lingers 7, which are bent to form a hollow knob of a diameter to embrace the bell member without touching the same, the extremities of the lingers being bent outwardly, as at 8, to produce a socket or sleeve embracing the stem portion 3 of the bell and connected thereto by suitable fastenings 9. lit will of course be understood that the blank (l is applied to the bell member before itis bent into the form of a knob, or, in other words, the blank is bent during the application thereof to the bell member. Another knob l0,of any common or preferred form, having a tubular stem l1, is litted to the opposite end of the spindle and held thereon by means of a screw 12 piercing the stem and engaging any one of a longitudinal series of threaded perforations 12), formed in the tubular spindle l. The knob l() is preferably the removable one, and the spindle l is thrust through the usual spindle-opening in the door 14C prior tothe application of the knob l0. Suitable washers 15 may be litted upon the spindle and against the usual escutcheen-plates 16 should they be deemed necessary.

Vtithin the tubular spindle and. projected at opposite ends thereof isa rotatable rod made up of two sections, (designated land 55,) with their inner ends reversely threaded and connected by a threaded sleeve 19, operating as a turnbuckle to adjust the rod-sections, and thereby vary the length of the entire rod to accommodate the same to doors of difli'erent thicknesses. This rod is inserted into the tubular spindle 1 prior to the application of the kob 6 and is provided with an annular shoulder 20 of a diameter to overlap the bore ofthe spindle, and thereby engage the end thereof, so as to limit the insertion of the rod.

rI`he bell-ringing mechanism is located within the bell and consists of a cross head or bar 21, fixed upon the adjacent end portion of the rod-section 18 and provided at each end with headed projections 22. Slotted tapped members 23 are slidably mounted upon the cross head or arm 21 with the projections 22 eX- tended through the slots thereof, the heads of the projections serving to prevent loss of the tappets. A bowed spring-arm 211 is secured intermediate of its ends upon the outer eX- vtrernity of the rod-section 18 and has its eX- tremities provided with longitudinal slots Q5, receiving the projections 22 and bearing upon the tappets, so as to prevent undue looseness thereof. It will here be explained that the arm 21 is fast upon the rod 18, so that by rotating the latter the bell-ringing mechanism will also be rotated and the tappets thrown outwardly under centrifugal action into contact with the projections 5 of the bell, thereby 'to sound the latter.

For convenience in rotating the controllingrod the outer end of the rod-section 17 is passed through a perforation 25V, formed centrally in the knob 10, with its projected portion threaded for the reception of a handle or finger-piece 25, there being a screw 26 passed through the handle and engaged with the rod to prevent displacement of said handle.

From the foregoing description it will be understood that the spindle 1 may be actuated by manipulating either of the knobs without operating the bell-ringing mechanism, and said bellringing mechanism may be conveniently rotated by manipulation of the handle 25, so as to ring the bell without manipulating either of the knobs. rIhe bell and the bellringing mechanism are both housed within the knob 6, and both knobs may be conveniently applied and removed. Moreover, the controlling-rod may be adjusted in length to fit doors of different thicknesses.

A very important feature of the invention resides in the relation of the bell and the knob 6, whereby the latter is connected to the stem 3 of the bell independently of the bell-ringing mechanism and the controlling-rod therefor, whereby a very strong and durable mounting of the bell and the knob is provided.

A pin 27 is driven through the slotted side of the spindle 1 at the middle thereof, so as to lie across the sleeve 19 and prevent accidental turning thereof.

Having thus fully described the invention, what is claimed is 1. A device of the class described comprising a tubular spindle, a knob secured to one end of the spindle, a bell having a tubular stem embracing the opposite end of the spindle, bell-ringing' mechanism, and another knob formed from a sheet of metal having radial incisions intersecting the outer edge thereof to form fingers which are bent around the bell and connected to the stem thereof.

2. A device of the class described comprising a tubular spindle, a bell carried by one end of the spindle, a rod rotatable within the spindle with one end projected into the bell and its opposite end accessible at the other end of the spindle, an arm carried by and rotatable with the rod within the bell, headed projections carried by the ends of the arm, slotted tappets slidably carried by the arm with the projections eXtended through the slots thereof, a spring-arm carried by the rod and having its terminals bearing upon the tappets and provided with slots receiving the projections, and a plurality of internal projections carried by the bell in the path of the tappets when pro# jected by centrifugal force.

In testimony that I claim the foregoing as my own I have hereto afxed my signature in the presence of two witnesses.

JOHN O. MORRIS.

Witnesses:

J. H. JocHUM, Jr., FRANK S. APPLEMAN.

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