US363332A - Xdevice f for attaching and detaching electric lamps - Google Patents

Description

' (NoModeL) v 2 Sheets-Sheet 1.

W. J. HAMMER.

DEVICE FOR ATTAGHING AND DETAGHING ELEGTRIG LAMPS. No. 363,332. Patented May 17, 1887.

(No Model.)

2 Sheets-Sheet 2. W. J. HAMMER. DEVICE FOR ATTAGHING AND DETAGHING ELEGTRIG LAMPS.

Patented May 17, 1887.

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AND FRANCIS R. UPTON,

OF ORANGE, NEIV JERSEY.

DEVICE FOR ATTACHING AND DETACHING ELECTRIC LAMPS.

SPECIFICATION forming part of Letters Patent No. 363,332, dated May 17, 1887.

Application filed November 24, 1880. Serial No. 219,849. (No model.) Patented in GermanyNovembcr 25, 1883, No. 27,680.

To aZZ whom, it may concern:

Be it known that I, \VILLIAM J. HAMMER, of Boston, in the county of Suffolk andState of Massachusetts, have invented a certain new and useful Improvement in Devices for Attaching and Detaching Electric Lamps, of which the following is a specification.

In the use of incandescent electric lamps it is often necessary to place them in situations where it is difficult and inconvenient to reach them for the purpose of detaching them from their sockets when broken or to clean the glass, and for replacing them or substituting other lamps.

The object of my invention is to provide simple and efficient means for attaching and detaching lamps when they are so placed as to be beyond reach with the hand; and my in vention consists in the novel devices and combinations of devices employed by me in accomplishing this object, as hereinafter described and claimed.

In the accompanying drawings, Figure l is a sectional View of the principal portion of my lamp attaching and detaching device in its simplest form, shown as about to grasp a lamp for the purpose of detaching it; Fig. 2, an elevation of the same in the act of grasping the lamp; Fig. 3, a longitudinal section, with the lamp-holder in elevation, of a more elaborate form of device; Fig. 4, an opposite longitudinal section of a portion thereof; and Figs. 5

and 6 illustrate modified forms of my invcn tion on a smaller scale.

Referring, first, to Figs. 1 and 2, A is a pole or rod, which may be of any desired length. Upon the end of said rod is a sleeve, B, preferably of brass or similar suitable metal, which carries at its outer end the holder for 0 grasping the lamp, which consists of two parts,

0 O, hinged together at a a, the part O being attached to or formed in one piece with the sleeve B. The holder is preferably lined with chamois-skin, felt, or other soft material, C,

5 to prevent injury to the lamp. The jaws O 0 thus form a holder, which is open at its top and of substantially cylindrical form, so that its sides will surround the lamp-globe with an even pressure and grasp it on all sides with sufficient friction to permitit to be turned, but

without danger of breaking it.

A lever, D, extends from the hinged or movable part 0, from which a stout wire, I), or other connection extends, passing through slots in the sleeve B and being attached to the bell-crank E, pivoted to alug, c, on said sleeve. From bell-crank E a cord, F, extends, passing under pulley d on the sleeve and extending down to the other end or handle of the pole A.

Upon the opposite side of the sleeve is secured a flat spring, G, which bears with an outward pressure against the lever D, whereby' the two parts 0 O of the holder are normally held together.

II represents an incandescent electric lamp, which in Fig. 1 is shown as screwed into a socket or holder, I. Then it is desired to re move such lamp from its socket, the operator raises the holder to a position immediately below the lamp, and then by drawing down on the cord F opens the holder against the press are of spring G. up around the lamp'globe and releases the cord, whereupon the spring closes the holder upon the globe, grasping the same firmly. :Bythen turning the pole, the lamp is unscrewed and removed from its socket, as shown in Fig. 2. is

Most of the incandescent electric lamps now in use are held in their sockets by screwthreads, as shown. Some, however, are held by spring-clips, bayonet-catches, Ste. and it is evident that my invention is equally well adapted for the removal of those so arranged.

Lamps are replaced in the socketin asimilar manner. The holder is opened and the lampplaced therein. The pole is raised to bring the lamp to the socket. It is screwed or otherwise inserted therein, and the holder is opened and withdrawn by pulling the cord F.

7 It is evident that the bell crank may in some cases be dispensed with-and the cord extend directly from the holder; but I prefer the arrangement shown, since it adds to the power which may be applied to the holder.

The form of holder above described is principally useful when lamps are in such position that they may be reached by a simple vertical 8 movement of the holder, and detached merely by turning the pole. Lamps are often placed,

however, at various angles from the position of the operator, and where downwardlysus- He then pushes the holder metal and curved back upon itself, as shown.

' ,Q, which is of any desired length, being partly such parts being joined together by thumbpended lamps must be reached from above, and in other situations where thesimple apparatus described cannot conveniently be used.

G, and the bell-crank E, from which extends the cord F, as above described, is inserted loosely in the tube K, which is preferably of I prefer to form this tube in two parts,as will be explained. Within this tube K is a long spiral spring, L, extending through substantially the whole length of the tube, to which spring the sleeve B is attached. For convenience of illustration, the greater part of the length of the spring is illustrated by the dotted lines extending through the tube. At the other end of the spring it is attached to a spindle, M, secured rigidly to a coupling-sleeve, N. This sleeve may be of any desired length, a part of it being broken away in the drawings to illustrate this. At or near its lower end there is keyed within sleeve N a handle, 0, for turning the sleeve, such sleeve having a long slot, e, whereby the device may be lengthened by drawing the handle O farther out. The handle 0 turns in asleeve, P, which is arranged to slide in and out of the outer inclosingtube,

broken away in the drawings, and sleeve P is drawn in andout of Q to alter the length of the whole, being held at the desired point by a thumb-nut, f, passing through slot in tube Q and setting against sleeve 1?. A jointed or extensible pole is thus formed capable of being shortened or lengthened, as desired.

The curved tube K is made in two parts, as stated, and as shown more clearlyin Fig. 4,

' nuts h h, by loosening which the two parts of the tube may be set. at an angle with each other, in order to accommodate the device to differently-situated lamps. The cord F extends the whole length of the device. I

In operating this device the holder 0 O is brought near the end of the lamp-globe, opened by means of the cord F, placed over the globe, and permitted to close thereon. The holder and lamp may then be turned by turning the handle 0, the sleeve N and spindle M being thus turned and the motion being communicated by the spiral spring L to the holder 0 O. 1Figs. ,5 and 6 show other waysof communicating motion to the holder. In Fig. 5 motion is communicated by small pulleys or wheels '5 i, over which a belt or cord, 7;, passes, and in Fig.6 bevel-gears Z Z and m mare employed for the same purpose. It is evident that the form of the pole and curved tube may be varied to suit the requirements of particular cases without departing from the spirit of myinvention, for by the use of the spiral spring the turning motion may be communicated through any form of tube. What I claim is 1. The combination of a poleor rod, a pair of hinged jaws carried thereby and open at the top for grasping an incandescent electric lamp, and means extending within reach of the operator for controlling the movement of said jaws, substantially as set forth.

2. The combination of the pole or rod, the hinged jaws carried thereby and lined with flexible material for grasping an incandescent electric lamp, and means extending within reach of the operator for controlling the movement of said jaws, substantially as set forth.

3. The combination of the pole or rod, the hinged jaws carried thereby, forming, when closed, a holder of substantially cylindrical form and open at the top, for grasping an incandescent electric lamp, and means extending within reach of the operator for controlling the movement of said jaws, substantially as set forth.- I

4. The combination of the pole or red and the lamp-holder consisting of a part attached stationary to said pole or rod and a movable part hinged thereto, the arm extending from said stationary part, the spring keeping said holder normally closed,and the bell-crank and cord connected with said arm for opening said holder, substantially as set forth.

5. The combination of a poleor rod,a holder carried thereby, constructed and adapted to grasp an incandescent electric lamp, aspring keeping said holder closed normally, and means extending within reach of the operator for opening said holder, substantially as set forth.

6. The combination of a pole or red, a sleeve secured to the end thereof, a lamp-holder comprising a part attached rigidly to said sleeve and a movable part hinged thereon, a lever extending from said movable part, a spring on said sleeve bearing against said lever, so as to keep the holder normally closed, and a cord extending from said lever within reach of the operator, substantially as set forth.

7. The combination of a pole or rod, a lampholder carried thereby, and means independent of said pole or red for turning said holder, substantially as set forth.

8. The combination of a hollow pole or rod, a lamp-holder carried thereby, and a spiral spring extending within said pole or rod to said holder for movingsaid holder independ ent of the pole or red, substantially as set forth.

9. The combination of a curved or angular hollow pole or rod, a lamp holder carried thereby, and means within said pole or red for moving said lamp-holder independent of the pole or rod, substantially as set forth. I

10. The combination of the curved or angu IIO lar hollow pole or red, the loose sleeve inserted? therein and terminating in the lamp-holder, Y

the spiral spring attached to said sleeve and extending throughthe curved or angular portion of said pole or rod, and a turning-handle connected with-said spring and projecting beyond said pole or rod,substantially as set forth. 11. The combination, with the straightpole or electric lamp, means extending within reaeh of the operator for opening and closing said holder, and means for turning said holder 111- I5 dependent of said pole or rod, substantially as set forth. I

This specification signed and witnessed this 18th day of November, 1886.

WM. J. HAMMER.

Witnesses:

J. B. WOODWORTH, EDWARD E. PARKER,

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