US1472686A - Mounting lamp shade - Google Patents

Description

Oct. 30 1923.

S. R. SCHWARTZET AL MOUNTING LAMP SHADE Filed Nov. 17. 1920 rIIL reamed on. so, was.

S. ROBERT SGHWVARTZ AND AUGUST BOSTROEM, OF NEW YORK, N. Y., ASSIGNORS TO r Eric SAID SCHWARTZ.

MOUNTING LAMP sna s.

Application filed November 17, 1920. Serial No. 424,681.

To all whom it may concern:

Be it known that we, SAMUEL ROBERT SCHWARTZ and AUGUST Bosrnomncitizens of the United States of America, residing at New York, in the countyof New York and State of New York, have invented new and useful Improvements in Mounting Lamp Shades, of which the following is a specification.

Our invention relates to improvements 1n mounting lamp shades and particularly to simple and effective means for supporting the shades used on portable electric lamps. It is illustrated in the accompanying drawings and will be described in its application to the latter type of lamp, but it is evident that it may have other applications.

It is well known in electric portable lamps to mount an elongated shade on a longitudinal axis by providing a pivotal support at each end of the shade. A lamp socket for holding an incandescent lamp is mounted within the shade and coaxially with the same. The electric wires for this socket ass through the pivotal support of the lamp, through the end of the shade and into the socket. It has heretofore been the custom to form a hole in the end of the shade through which the wiring may pass, but this had the disadvantage that when for any reason 1t was desired to remove the shade it became necessary to disconnect the wiring from the socket and to remove the socket from its support before the shade could be removed.

to provide a form of mounting for a pivotally supported lamp shade deslgned to allow the shade to be readily removed. It is especially adapted for use with glass shades, 4S0

lit is one of the objects of our invention which are frequently broken and therefore must be frequently replaced. Other and furof Fig. 3, showing the portion of the lamp shade opposite to that at which our invention is applied, together with the mounting of this opposite portion;

Fig. 5 is a view similar to Fig. 2, showing a modification of our invention;

Fig. 6 is a view similar to Fig. 2, showing another modification of our invention.

Fig. 1 shows a portable electric .lamp of well-known type, consisting of a base E, a

bracket arm C, pivo-tally joined to the base by the swivel-joint D and carryingat its" upper end a lamp socketF which is appropriately wired up in the customary way by wires passing through the bracket arm. A shade B is pivotally mounted over the lamp socket F, as will be explained later in detail, the two pivots being axially alined and being coaxial with the lamp socket. Our invention is generally designated by A, and will now be described in detail. I

To understand the purpose of our invention it will first be necessary'to describe the mounting of the shade B. The latter is constructed with a slot 1 at one end extending from its lower rimto near the middle of the end. The slot is of suflicientwidth to j the socket, but is at the.

ple locking means whereby the shadeis prevented from sliding out of engagement with the socket unless the locking means is re leased. Said locking means consists of a small plate pivotally mounted on an extension of the bracket C and carrying at its free end in threaded engagementa set-screw 5 which is free to move axially through a small hole 3 in the end of the shade.

' At its opposite end the shade is also pivotally mounted aswill be clear from an inspection of Fig. 4. A. set screw 7 is freel mounted in thebraoket C and passes through a hole 6 in the shade B. A wing-nut 9 is in threaded engagement with'the screw 7 to keep it in place and a washer 8 is interposed between the shade B and the wing-nut 9,

for obvious reasons.

From the above description the 'manner of using the device will be easily understood.

To remove the shade B from its mounting it is only necessary to move screw 5 out of engagement with the shade and to such a point that it will not interfere with removal of the shade. Next, screw 7 is moved out of engagement with the shade, after re moving the wing-nut 9. The shade is now held onl in sliding engagement between bracket and the walls of slot 1 and can be readily removed by simply sliding it out of engagement. To replace the shade the above operations are performed in reverse order. During these operations the electric wiring is in no way disturbed.

Theadvantages of our device are now apparent, since the shade is removable after merely adjusting two screws, and without in any Way disturbing the wiring.

In Fig. 5 is shown a modified form of our invention, here designated by A. I socket F is as before mounted on an extension of the bracket C and within the shade B V which hasa slot 1. The latter, in this modification, isseated on an extension of the bracket C and not on the lamp socket as in the other form of our invention. This last-mentioned extension pivotally carries the plate l which carries at its free end the pin 5, slidable with relation to the plate, but capable of being clamped thereto by set screw 10. The pin is in sliding engagement with shade B by the'provision in the latter of a hole 3 into which the pin may move.

The modification of our invention shown in Fig. 6 is designated by A. It differs from the form of Fig. 2 in the addition of a nut 11" to limit motion of the shade with relation to the screw. Parts 3", e" and 5 are identical with parts 3, land 5 of Figure 2.

WVe claim:

1. In a lamp, a shade having at one end a hole whereby this end may be pivotally mounted and at its other end a slot whereby the shade may be mounted pivotally without preventing axial movement nor movement transverse to the axis, and a hole in the shade adapted to receive means which will prevent the above-mentioned transverse movement without destroying the freedom of movement in other directions.

2. In a lamp, a shade, a hole in one end of said shade, a slot in the other end of said shade permitting the shade to move trans versely to its axis, and a hole insaid other end of said shade, supporting means engaging said first-mentioned hole and said slot, and means engaging said second hole to restrict the movement of the shade.

3. In a lamp, a shade open at one side, a hole in one end of said shade, an elongated slot debouching into the open side in the other end of the shade and permitting movement of the shade transversely to its axis, and a hole in said other end adjacent to said slot, supporting means engaging said slot and one of said holes, and means engaging said second hole to restrict the movement of the shade.

4. In a lamp, a shade, a bracket, means on said bracket for pivotally supporting one end or said shade, means on said bracket for allowing pivotal motion of the other end of said shade and also allowingthe shade to move in the direction of the axis of pivoting, and in a direction transverse thereto; and means carried by said bracket whereby the second-mentioned end of the shade may be prevented from moving in said transverse direction.

5. In a lamp, ashade, a hole in one end of said shade, a slot in the other end 01"" said shade, a bracket, means on said bracket adapted to coact with the hole in the shade, whereby a pivotal mounting is provided, and means on said bracket adapted to coact with the slot in the shade whereby a pivotal and slidable mounting is provided.

6. In lamp, a shade, a hole in one end of said shade, a slot in the other end of said shade, a bracket, means on said bracket adapted to coact with the hole in the shade whereby pivotal mounting is provided, means on said bracket adapted to coact with the slot in the shade whereby a mounting is provided which will permit pivotal motion and motion in the direction of the axis of said pivotal motion and in a direction transverse to said axis, and means on said bracket adapted to engage the shade so as to prevent the said transverse motion.

7. In a lamp, ashade, a hole in one end of said shade, a slot in the other end of said shade, a hole in said last-mentioned end of said shade, a bracket, means on said bracket which may coact with the first-mentioned hole whereby a pivotal mounting is provided, means on said bracket which may coact with the slot in the shade whereby a mounting is provided which will permit piv otal motion and motion in the direction of the axis of said pivotal motion and in a div reotion transverse to said axis, and means on said bracket adapted to engage said second-mentioned hole so as to prevent thesaid transverse motion.

8. In a lamp, a shade pivotally mounted at one end and at its other end mounted so as .to be free to move pivotally in the direction of the axis of pivoting or in a direction transverse thereto, a pivotally mounted plate, means carried by said plate adapted'to coast with said shade, whereby the mounting of the last mentioned end is changed to one permitting pivotal motion and axial motion but not transverse motion.

9. In a lamp, avshade pivotally mounted at one end, and at its other end mounted so as to be free to move pivotally in the direction of the axis of pivoting or in a direction transverse thereto, a bracket, means pivotally mounted on said bracket, and means on the shade adapted to coact with said pivotally mounted means whereby the mounting of the last mentioned end is changed to one permitting pivotal motion and axial motion but not transverse motion.

10. In a lamp, a shade, a bracket, a hole in one end of said shade, means carried by said bracket adapted to coact with said hole to provide a pivotal support for the shade, a slot in the other end of said shade, a second means on said bracket adapted to slide into said slot and to form a pivotal support for the shade when engaging the bottom of the slot, and means in pivotal relation with said second means whereby said second means is held in engagement with the bottom of the slot.

11. In a lamp, a shade, a bracket, a hole in one end of saidshade, means carried by said bracket adapted to coact with said hole to provide a pivotal support for the shade, a slot in the other end of said shade, a second means on said bracket adapted to slide into said slot, means in pivotal relation with said second means, and means on the shade adapted to coact with said lastmentioned means, whereby the second means is held in engagement with the bottom of the slot.

12. In a lamp, a shade, a bracket, ahole in one end of said shade, means carried by said bracket adapted to coact with said hole to provide a pivotal support for the L shade, a slot in the other end of said shade,

a hole in the last-named end of said shade, a second means on said bracket adapted to slide into said slot, means in pivotal relation with said second means and means carried by said last-named means adapted to slidably engage the second mentioned -hole in the shade whereby said means is held in engagement with the bottom of the slot.

13. In a lamp, a shade, a bracket, a hole in one end of said shade, means carried by said bracket adapted to coact with said hole o provide a pivotal support for the shade, a slot in the other end in the last-mentioned end of said shade, an extension on the bracket, a lamp socket carried by said extension, said lamp socket and tension and into the socket,

of said shade, a hole gagement with the bottom of the slot, all for a the purpose of enabling the shade to be ieadlly removed and replaced without interfering with the electric wiring. 7

l4. In a lamp, aishade, a bracket, a hole in one end of said shade, means carried by said bracket adapted to coact wit-h said hole to shade, a slot in the other end of said shade,

a hole in the last-mentioned end of said shade, an extension on the bracket, a lamp socket carried by said extension, said lamp socket and slot adapted to have slidingengagement with each other and pivotal engagement when the lamp socket contacts with the bottom of the slot, electric wiring passing through the bracket, through the exa plate pivotally mounted on the extension, an adjusting screw mounted in threaded engagement with the plate and adapted when adjusted to slidably engage the second men tioned hole for the ing the lamp the bottom of the slot, and a nut mounted on purpose of keepthe end of the adjusting screw so as to prevent disengagement of the said screw and the second-mentioned hole, allfor the purpose of enabling the shade to be readily removed and replaced without interfering with the electric wiring.

In testimony whereof, we have signed our names to this specification in the presence of two subscribing witnesses, this 16th day of November, 1920.

SAMUEL ROBERT SCHWARTZ, AUGUST BOSTROEM.

Witnesses S. ABRAMS, I. SMITH.

provide a pivotal support for the socket in en a ement with y b b

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