US575769A - Half to fred l - Google Patents

Description

(No Model.)

B. PORTER. HANGING LAMP.

No. 575,769. Patented Jan. 26, 1897.

//7 06/7 for UNITED STATES PATENT OFFICE.

BENJAMIN PORTER, OF ELLENDALE, NORTH DAKOTA, ASSIGNOR OF ONE HALF TO FRED L. WALKER, OF SAME PLACE.

HANGING LAMP.

SPECIFICATION forming part of Letters Patent No. 575,769, dated January 26, 1897.

Application filed March 11, 1896. Serial No. 582,806. (No model.)

To all whom it may concern;

Be it known that I, BENJAMIN PORTER, a citizen of the United States, residing at Ellendale, Dickey county, North Dakota, have invented certain new and useful Improvements in Hanging Lamps, of which the following specification contains a full, clear, and exact description, reference being had to the accompanying drawings, in which Figure 1 is a side elevation of my improved hanging lamp; and Fig. 2 is a similar view of a modified form, the lamp bowl being omitted.

My invention relates to that class of hanging lamps which are adapted tobe raised and lowered and commonly called drop-lights.

The object of the invention is to provide a simple and inexpensive lamp of this character which may be detached from the hook or eye at the ceiling and carried from one place to another, and again attached to the ceiling hook or eye, and that without the use of a step-ladder. In the class of lamps suspended by chains or flexible devices the lamp cannot be detached from one ceiling-hook and carried to another without having to mount a step-ladder,which is not only inconvenient but attended by more or less danger. My lamp, however, has a rigicl,extensible, and contractible hanger held in any adjusted position by means of a clutchspring, and it may be carried from one suspension-hook to another.

The invention will be first described, and then specifically pointed out in the claims.

A represents a lamp-bowl of any suitable construction and material, but I prefer-a metallic bowl.

13 represents the upper or stationary member of the hanger, and comprises two parallel rods B B, either tubular or solid, an upper cr0sspiece B having a hook or eye b and a lower crosspiece B provided with guideopenings 19 The lower or sliding member B of the hanger comprises two parallel guiderods B B which slide freely through the openings b and are connected at their upper ends by a cross-piece B which is provided with two end apertures b through which freely pass the rods B B, so that said cross-piece may freely slide thereon.

The upper ends of the rods B pass freely through apertures 19 in the cross-piece B and have a short sliding movement therethrough, the upward movement being limited by pins 1)" or shoulders, which engage the under side of the said cross-piece, and the downward movement of the rods B being limited by heads 17 on their upper ends. These heads 1) project outwardly and upwardly in opposite directions toward the inner sides of the rods 13, but do notcontact therewith, and O is a plate-spring riveted or otherwise secured at its middle to the upper arched middle portion of the sliding cross-piece B and its ends curve upwardly and bite at their extremities upon the stationary rods B B, so as to yield and allow the sliding section B of the hanger to be pulled down and yet hold it in its adjusted position, the extremities of said spring being notched, as at c c, to prevent lateral disengagement.

lVhen the section B of the hanger is pushed up, however, the upper ends of its rods B will slide through the cross-piece B and the releasing-heads b will engage the under side of the spring 0 and raise its ends out of engagement with the rods B, so that the sliding hanger-section may be raised to any desired height. As soon as the section B is released it will slide down and its heads Z) will become portions of these loops are rigidly connected by a handle D, spaced below the bottom of the lamp and having upwardly-projecting arms 61 d, secured to said loops.

E is a suspension-hook secured to the ceil- 9o ing and from which the lamp is removably suspended by the eye b By having these hooks in different parts of a room and in dif ferent rooms the lamps may be placed whereever desired, as it is only necessary to grasp 5 -the handle D and raise the lamp as an entirety till the eye b is disengaged from hook E and then carry the lamp Wherever desired,

the hanger remaining in its vertical position. If the lamp is too high, it will only be neces- 10o sary to pull down gently on the handle,which will overcome the friction of the spring 0 against the rods 13 and allow the sliding hanger-section B to slide down, and a push on the handle D will cause the positive releasing of the spring C through the medium of heads a and allow the hanger-section B to slide up.

The handle D is spaced away from the lamp, so as to prevent oil from soiling the hand when operating the hanger.

F is the usual bell or deflector suspended over the lamp-chimney from the crossbar B In Fig. 2 I have shown a modification of the retaining-spring C, and in place thereof a spring 0 is employed. This spring C is secured at its inner end to the upper side of the cross-bar B and has an aperture 0 and a slot 0 through which pass a rod and a rod 13, respectively, and from the outer end of the spring hangs an operating strand or chain C The spring 0 projects at an angle and its aperture 0 engages with its outer wall, as at 0 the outer side of the rod B so as to frictionally hold it against downward movement due to the weight of the lamp, but not with suiiicient force to prevent the lamp from being pulled down to any desired position. In order to raise the lamp, the strand or chain C must be pulled upon to depress the spring C and throw its edge 0 out of contact with rod B and then the lamp may be pushed up to any desired height, when the spring C will be released and again clutch or grip the rod B as before, and hold the lamp in its adjusted position. In this modified construction the upper ends of rods B are immovably secured to cross-piece B The slot 0 is simply to allow the spring to straddle the bar 13.

Having thus described my invention, what I claim is 1. The combination with the stationary hanger-section having parallel rods upper and lower cross-pieces of the sliding lamp-supporting hanger-section also having parallel connected rods and a plate-sprin g secured to one hanger-section projecting at an upward incline toward a rod of the other section and engaging said rod with sufficient force to hold the lamp at any desired adjustment and yet yield to a downward pull on the lamp, and means for disengaging the spring from the said rod when the lamp is to be raised or pushed up, substantially as set forth.

2. The combination with the upper or stationary hanger-section having parallel connected rods, of the lower or lamp-supporting section having parallel rods in sliding engagement with said upper section; said rods having a limited sliding movement of their own independent of their movement on the said upper section, and a clutch or grip on the upper end of the lower section, engaging the upper section and in the path of the upper end of said sliding rods, to be released thereby when the lower section is pushed up and given connection with said upper section, a crosspiece connecting the upper ends of said sliding rods and in which said upper ends have a limited sliding movement, a spring secured to the upper side of said cross-piece and frictionally engaging with its opposite ends the stationary parallel rods; the upward movement of the sliding rods causing their upper ends to bear against the lower side of said spring and press the ends of the spring out of engagement with said stationary rods, substantially as set forth.

at. The combination with the upper or stationary hanger section having upper and lower connecting cross-pieces, of the lower or lamp-supporting hanger-section having parallel rods in sliding connection with said upper section and connected at their upper ends by a cross-piece sliding on the stationary rods and through which cross-piece the upper ends of said sliding rods have a limited sliding movement, heads on the upper ends of the sliding rods and projecting toward the stationary rods, a spring secured at its middle to the middle of the upper side of said sliding cross-piece with its ends projecting outwardly and upwardly into engagement with the stationary rods just above said heads, substantially as and for the purposes set forth.

5. The combination with the upper or stationary hanger-section and means for suspending it, of the lower hanger-section having parallel rods in adjustable sliding connection with said upper section, lamp-receiving loops or yokes at the lower ends of the sliding rods and a transverse handle-bar, rigidly connectin g the lower ends of said loops substantially as set forth.

6. A hanging lamp consisting in the upper or stationary hanger-section having means for suspending it from a ceiling and provided with depending parallel rods connected at their lower ends by an apertured cross-piece, the lower or sliding hanger-section having parallel rods sliding through said apertured cross-piece and provided at their upper ends with a cross-piece sliding on said stationary rods and in which cross-piece the upper ends of said sliding rods have a limited sliding movement, heads on the upper extremities of the sliding rods, a spring secured to the sliding cross-piece above said heads to be raised thereby and engaging with its opposite ends the said stationary rods, a lamp-bowl secured to the lower ends of the sliding rods, and a handle-bar beneath the bottom of the lamp and spaced therefrom, substantially as set forth.

'7. The combination with the upper hangersection having depending parallel rods, of the lower, lamp-supporting hanger-section havhold the lamp-supporting section at any deing vertical parallel rods and a cross-piece sired height, substantially as set forth. connecting their upper ends and sliding on the first-named rods, and a spring secured at BENJAMIN PORTER. 5 its middle to the said sliding cross-piece and \Vitnesses:

in frictional engagement at its opposite free D. W. COLEMAN,

ends With said depending stationary rods to C. W. PALMER.

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