US1482147A - Electric-bulb attacher - Google Patents

Description

Jan. 29, 1924. 1,482,147

F. H. POTTS ELECTRIC BULB ATTACHER Filed April 5, 1922 of which the following is aspecification.

section.

areas Jan; e9, 1924.

barren STA'MS PATENT ,OFFEQEQ HENDERSON PCTTS, OF ASHEVILLE, NOETH CAROLINA.

ELECTRIC-BULB ATTACHEB.

Application filed April 8,

To all whom it, may concern:

Be it known that l, FRED HENDERSON Form, a citizen of. the United States, resid ing at Asheville, in the county of Bunc'ombe and State of North Carolina, have invented a new and useful Electric-Bulb Attacher,

This invention relates to devices for attaching and detaching electric light bulbs in sockets located in elevated positions.

The object of the invention is to provide a simple and efficient device of this char-' acter whereby the bulb may be firmly gripped for turning, without danger of.

for use in connection.withditferent sized bulbs.

,With the foregoing andother objects in view which will appear asthedescription proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understoodthat changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

I In the accompanying drawings Figure l represents a side elevation of the device constituting this invention shown applied: i I r m' 7 Fig. 2 is a similar view with thegripping jawsshown in open-position and parts in Fig. 3is a transverse section taken on the line 33.otFigure 1. i

F ig. 4 is a similar view taken on the line 4+4: of Figure 2.

Fig. 5 is a face view of one of the pads used in connection with the clamping jaws Fig. 6 is a detail side elevation of one of the auxiliary jaws used for small sized bulbs, and

Fig. 7 is a longitudinal section showing a modified tor not handle. I

.3111 the embodiment illustrated in Figures fl to .5,-the device constituting this invenat its terminal with I finger grip.

1922. Serial No. 549,213.

be o't any desired length and which has a metal sleeve 2 secured to itsupper end, the handle Xtending into said sleeve andbeing cut away as shown in Fig. t to provide for the mounting on the handle, within the sleeve, of the jaw locking pin 15.

The metal sleeve 2 has its front or outer end bifurcated and the furcations 3 thereof extende'dbeyond the handle 1 and between which is mounted'the shanks of jaws 5 and 10 presently to be described. i

A bolt 4 extends transversely through the outer ends of the turcations 3 and is equipped with a wing nut said bolt be ing designed to receive and support the shanks of the jaws5 and 10which are held in position onsaid bolt by nuts 4 as shown clearly in Figure 3.

The sleeve 2 is provided with a longitudinally extending slot 2 in which is mounted to slide a laterally extending headed stud 17 carried by the'jaw locking pin 15 and which forms a guide for said pin.

The pin 15 extends beyond the inner end of sleeve 2 and is provided with an'eye 16 preferably formed by flattening out the end of the pin and bending it as is shown clearly in Figure 1. Aufinger grip l8v inthe'torm of a ring is mounted in the eye 16 and is designed for retracting the pin 15 for a purpose presently to'bc described.

A. sliding rod 19 is mounted longitudinally on the pole 1 and is here shown equipped at its inner end with an eye 20 which is engaged with the eye 16. of the locking pin 15. This rod 19 is mounted to slide in a suitable guide on the handle 1 whichwis here shown'in the form of. a lat- 'erally extending eye 21, the rear end of said rod 19 being deflected and being equipped a knob 22 to form a A coiled spring 23 is mounted on the rod 19 between washers 24; and 25 carried by said rod, the washer 24 having threaded en ticn comprises a pole or handle which is I n prererably constructed of wood which may gagement with the rod for varying the ten 'sion of the spring while washer 25 is loose thereon and forms an abutment to enga e the eye 21. and between'which and t e washer 24 spring 23 is compressed when the rod 19 is moved rearwardlyagainst the tension of said spring. I i

The jaws 5 and 10 are substantially alike except-that one of them is made fixed and being numbered 6 and 7 respectively, while those on jaw 1.0 are numbered 11 and 12. Any desired number of pairs of fingers may be employed, two being here shown, and

said fingers are longitudinally curved forming in connection with the strip on which they are mounted arcuate members adapted to engage the. bulb B. These fingers are padded on their inner faces to prevent crushing of the bulb when the movable jaw is released and engaged therewith. The pads here shown are made in the form of rubber disks 26 centrally apertured for the passage of split attaching rivets 27 and having their outer faces transversely grooved as shown at 28 to receive the split ends 29 of the rivets to prevent all possibility of the rivet contacting with the bulb when the jaws are engaged therewith.

The fixed aw 10 has a longitudinally extending slot 30 therein for connect-ion therewith, of an auxiliary clamping jaw 85 shown in detail in Fig. 6 and which is designed to be used with the device when small sized bulbs are to be attached or detached.

The shank 8 of the fixed jaw 10 is secured to the outer end of the handle 1 in any suitable manner provided it be sufliciently rigid to prevent movement of the jaw.

The shank 13 of the movable jaw 5 extends outwardly and obliquely from the pivot bolt 4 on which it is mounted, and its inner edge is curved as is shown clearly in Figures 1 and 2 to facilitate its openin and closing, and for providing a locking edge .for cooperation with the pin 15 when the jaw is in closed position, whereby it is held against opening movement until the pin is retracted.

' The terminal'of this shank 13 is pointed as shown in Figures 1 and2, and is designed, when the jaw is opened to enter a seat15' formed in the outer end of pin 15 for securely holding the jaw in open position against .the tension of the coiled spring 31 Which connects the inner ends of thetwo jaws, and which serves to normally 'move jaw 5 toward jaw 10.

. To enable the device to be used on bulbs located at an extremely high elevation, the

handle 1 may be made extensibleas shown in Fig. 7 being there constructed-of telescoping tubular'sections 32, and 84 held in ladjusted positions by set screws 3 1. :of course'undeii'sto'od that if desired, a cord It is or chain may be connected with the "finger grip 18 or with the knob 22 so as to operate these parts from a point remote when necessary.

The auxiliary jaw 35 shown in Fig. 6' 1s designed to fit under the end of an electric in adjusted position by a clamping nut 38.

having threaded engagement with said stud The 5 and 10 being removably mounted on the bolt amay be removed and others substituted when desired.

In the use of this invention when the de 'vice' is to be used for attaching a bulb to a socket, the bulb is placed between the open jaws shown in Fig. 2 and by exerting a downward pull on r0d 19 the jaw 5 is released owing to the fact that the pin 15 is withdrawn from engagement with the shank thereof and the coiled spring 31 will operate to close the jaw 5 and securely clamp the bulb between it and jaw 10. The rod 19 is then released and the spring 23 will force the pin 15 into locking engagement with the curved inner edge'lt of the shank of jaw 5 and thus lock the jaw in closed position to prevent all possibility of the bulb moving petween the jaws or being disengaged-thererom.

The implement'with the bulb so mounted is then carried to the socket in which it is desired to place the bulb and the bulb may be attached by screwing it into the socket by rotating thehandle 1 in a well known manner.

After the bulb has been screwed into the socket as above'deseribed, the rod 19 is retracted against the tensionof spring 23 and a longitudinal 'pull'is exerted on the handle 1 which will permit the j awsto slide off; the

bulb releasing the device therefrom.

When the device is to be used for removing the bulb from the socket, the jaws are opened as shown-in Fig. 2 and the device is raised'to surround'the bulb by these; jaws and then a pull is exerted on rod 19 to re lease the movable jaw 5 which will under the'te'nsion of spring 31 clampingly engage the bulb and hold it between it and the fixed jaw 10. The bulb will then be unscrewed from the socket by turning the handle 1 and it of course may be removed from the jaws when desired. i

I claim I V i 1. The combination with a pole; of a fixed and a movable jaw carried thereby, a spring pressed means movable longitudinally on llO spring connecting said aws for moving the movable jaw toward the other jaw, and means for locking said movable jaw in closed position.

3. A device of the class described comprising a handle, a pair of jaws carried thereby, one of which is fixed and the other movable,

said movablejaw having an extension at its inner end and longitudinally movable pin carried by said handle having a seat in its outer end to engage said jaw extension when in open position to lock said jaw against accidental closing, and a spring for holding said pin projected.

4:. In a device of the class described a handle cut away on one side, a sleeve mounted on said cut away handle end and having longitudinally extending arms at its front end, clamping jaws mounted between said arms, one of said jaws being pivoted to swing toward and away from the other, and having an extension located between said arms, a spring projected pin slidably mounted in said sleeve in the out out portion of said handle and adapted to engage said jaw extension to lock it in either open or closed position.

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

FRED HENDERSON POTTS.

Vitnesses:

TVVILSON PENDLETON, JAMES BRYANT DIGKSON.

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