US2120121A - Mounting for a two-base electric tubular lamp - Google Patents

Mounting for a two-base electric tubular lamp Download PDF

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Publication number
US2120121A
US2120121A US55924A US5592435A US2120121A US 2120121 A US2120121 A US 2120121A US 55924 A US55924 A US 55924A US 5592435 A US5592435 A US 5592435A US 2120121 A US2120121 A US 2120121A
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Prior art keywords
mounting
lamp
contact
bases
base
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US55924A
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Wiegand Kurt
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General Electric Co
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General Electric Co
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/02—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken
    • F21V25/04—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken breaking the electric circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
    • H01R33/08—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Definitions

  • Two-base electric tubular lamps namely such which have a luminous wire stretched out in the direction of their axis, are often arranged in an uninterrupted train lying together axially, in orderto form luminous lines, script-symbols, omaments, figures etc.
  • Such lamp installations in the first place necessitate the laying of current conductors from which branches lead to the mountings of the individual tubular lamps.
  • the object. of the invention is to build the mountings of such tube lamps in such a manner that the time of laying of the conducting wires as well as the connecting of the mountings of each lamp of the installation is eliminated.
  • the caps of both two-part single mountings for a tube lamp are united into a common structure by means of two conducting-rods or -wires which serve to conduct current to and along the installations.
  • the bare end parts of the conducting rods lie inside of the mounting caps.
  • the mounting bases are equipped with attachment pins or attachment sleeves, so that additional lamps may be connected to the first one. Since current conduction toand along the installation occurs in this manner by means of the conducting rods, the otherwise customary separately laid current conductors are unnecessary. In addition to this the relative position of the two singlemountings of one lamp are fixed.
  • each mountingbase a spring clip is arranged and on the other side of the same are two spring clips which are bridged only by the bare end part of the inserted conducting rods.
  • Fig. 1 shows one end of thenew mounting in a perspective view.
  • Fig. 2 is a cross section through the single mounting along line IIII of Fig. 3.
  • Fig. 3 is a longitudinal section through the single-mounting on the line lI[--lI[ of Fig. 2.
  • Fig. 4 shows the wiring diagram of adjacently placed mountings.
  • the tubular lamps to be mounted show the usual construction. They have a cylindrical glass vessel I and a tungsten helical wire 2 which is stretched out in the axial direction of the latter,
  • Each cap of the single-mountings consists of a frontal wall 15, two side walls l6 and an areshaped cover-strip I! of narrow width.
  • the two caps 6 are united into a rigid structure by means of two conducting-rods or -wires.
  • the conducting rods 18, 19, in their free length between the caps, are provided with an insulating coating, their end parts 21, however, which lie in the recesses 20 of the caps 6, are not insulated.
  • the frontal wall I5 of each cap 6 is further provided with two slots 22, 23.
  • the two mounting bases 5 are united with the proper cap. structure while the bare end parts 2
  • the entire mounting arrangement is then placed against the wall or against a wood strip 24 and both mounting bases 5 are finally fastened by screws.
  • the cap structure 6, l8, I9 is lifted 01f and the tubular lamp I is inserted between the contact plates II, which can occur without danger since the spring clips 9, which are connected with the contact'plates H, .are not connected with the accompanying spring clips 8.
  • the cap structure is put in place again and the lamp installation is then ready for operation, As many lamps as desired can now be placed together, as shown in Fig.
  • each lamp is connected with a potential only when the cap structure is put in place, so that when the cap structure is taken off, work can be done, without further ado, on the mountings or on the lamps or the lamp itself can be exchanged.
  • the contact protection of the new mounting is increased by the fact that the bare end parts of the conducting rods lie in recesses of the mounting caps which are accessible only from the bottom, and the spring clips 8, 9 and I lie in deeply cut grooves of the mounting bases 5.
  • the new mounting can also be used with equal success for sofilt lamps and for tubular lamps constructed in other ways.
  • a mounting for a two-base electric tubular lamp comprising a base for each end of the lamp, contact pins secured to one of said bases, contact clips electrically. connected to said contact pins and secured to said one of said bases, contact sleeves secured to the other of said bases, contact clips electrically connected to said contact sleeves and secured to said other of said bases, a contact plate secured to each of said bases for connecting the'two ends of said lamp, a contact clip connected to each of said contact plates and secured to said bases, a cap of insulating material Ior covering each end of the lamp, and rods secured to said caps forming a unitary structure and having bared ends for connecting said last named contact clips to one of said first named contact clips whereby electrical connection is completed to said contact plates.
  • a mounting for a two-base electric tubular lamp comprising a base for each end of the lamp, a contact clip secured to each side of each of said bases, a contact plate secured to each of said bases and electrically connected to one of said contact clips on its corresponding base and adapted to engage the opposite ends of the lamp, caps of insulating material adapted to cover the ends of said lamp, and a rod disposed 'on each side of said bases securing said caps together to form a unitary structure and having bared ends to engage the contact clips on a corresponding side of said bases completes the electrical connec tions to said lamp.
  • a mounting fora two-base electric tubular lamp comprising a base for each end-of the lamp, two contact clips juxtapositioned at one side of one base and a single contact clip located at the other side of said base, two juxtapositioned contact clips located at one side of the other base in line with the single contact clip of the first mentioned base, a single contact clip secured to the other base in line with the two juxtapositioned contacts of the first mentioned base, a contact plate secured to each of said bases and electrically connected to one of said juxtapositioned contact clips on its corresponding bases and adapted to engage opposite ends of the lamp, caps of insulated material adapted to cover the ends of the lamps, and rods connected to said caps and having bared, ends to interconnect the single and juxtapositioned contact clips on corresponding sides of said bases.

Description

June 7, 1938. I K K. WIEGAND 2,120,121
MOUNTING FOR A TWO-BASBELEQTRIC TUBULAR LAMP Filed Dec. 25, 1955 Ifiventor': ,Kurt Wiegand,
is Attorney.
Patented June 7, 1938 UNITED STATES.
PATENT OFFICE.
MOUNTmG FOR A TWO-BASE ELECTRIC LAltlP TUBULAR poration of New York Application December 23, 1935, Serial No. 55,924 In Germany January 23, 1935 3 Claims.
Two-base electric tubular lamps, namely such which have a luminous wire stretched out in the direction of their axis, are often arranged in an uninterrupted train lying together axially, in orderto form luminous lines, script-symbols, omaments, figures etc. Such lamp installations in the first place necessitate the laying of current conductors from which branches lead to the mountings of the individual tubular lamps.
The object. of the invention is to build the mountings of such tube lamps in such a manner that the time of laying of the conducting wires as well as the connecting of the mountings of each lamp of the installation is eliminated. For this purpose, according to the invention the caps of both two-part single mountings for a tube lamp are united into a common structure by means of two conducting-rods or -wires which serve to conduct current to and along the installations. The bare end parts of the conducting rods lie inside of the mounting caps. The mounting bases are equipped with attachment pins or attachment sleeves, so that additional lamps may be connected to the first one. Since current conduction toand along the installation occurs in this manner by means of the conducting rods, the otherwise customary separately laid current conductors are unnecessary. In addition to this the relative position of the two singlemountings of one lamp are fixed.
With this construction of the mounting it is preferable that on one side of each mountingbase a spring clip is arranged and on the other side of the same are two spring clips which are bridged only by the bare end part of the inserted conducting rods. Thus, only when the cap-structure is inserted, is the current circuit closed, so that actually all danger of touching current carrying contact parts is avoided during inserticn or exchange of a tube lamp.
On the drawing is shown, by way of example, a construction of the new mounting.
Fig. 1 shows one end of thenew mounting in a perspective view.
Fig. 2 is a cross section through the single mounting along line IIII of Fig. 3.
Fig. 3 is a longitudinal section through the single-mounting on the line lI[--lI[ of Fig. 2.
Fig. 4 shows the wiring diagram of adjacently placed mountings.
The tubular lamps to be mounted show the usual construction. They have a cylindrical glass vessel I and a tungsten helical wire 2 which is stretched out in the axial direction of the latter,
55 which wire is carried by a support structure 3 and lies conductingly against the metal discs 4- which are fused into the ends of the vessel I, or
are fastened to them. For each tubular lamp In the mounting which is arranged a spring clip I 4, which is con- 1 ductingly connected with a secondattachment pin 93.
Each cap of the single-mountings consists of a frontal wall 15, two side walls l6 and an areshaped cover-strip I! of narrow width. The two caps 6 are united into a rigid structure by means of two conducting-rods or -wires. The conducting rods 18, 19, in their free length between the caps, are provided with an insulating coating, their end parts 21, however, which lie in the recesses 20 of the caps 6, are not insulated. The frontal wall I5 of each cap 6 is further provided with two slots 22, 23.
In placing the new mounting, the two mounting bases 5 are united with the proper cap. structure while the bare end parts 2| of the conducting rods I 8, I9 are gripped by the spring clips 8, 9 or by the clip I 4 of the mounting bases. The entire mounting arrangement is then placed against the wall or against a wood strip 24 and both mounting bases 5 are finally fastened by screws. Thereupon the cap structure 6, l8, I9 is lifted 01f and the tubular lamp I is inserted between the contact plates II, which can occur without danger since the spring clips 9, which are connected with the contact'plates H, .are not connected with the accompanying spring clips 8. Thereupon the cap structure is put in place again and the lamp installation is then ready for operation, As many lamps as desired can now be placed together, as shown in Fig. 4, sincetwo single mountings of two adjacent lamps, which are placed with their frontal surfaces together, are always connected with each other by means of the attachment pins l0, l3 and the attachment sleeves l0, 13'. The connections to and along such an installation are shown in Fig. 4. The current which is conductedto the two spring clips 8 and 9 of each mounting reaches the attachment pin and the next lamp by means of the former and reaches the spring contact plate.
II by means of the second clip 9, so that the lamp receives current only after the cap structure has been put in place. At the same time the clip 14 of the mountings is connected to the current which is carried to the neighboring lamps through the connected attachment pins l0, I3.
As has been already mentioned, each lamp is connected with a potential only when the cap structure is put in place, so that when the cap structure is taken off, work can be done, without further ado, on the mountings or on the lamps or the lamp itself can be exchanged. The contact protection of the new mounting is increased by the fact that the bare end parts of the conducting rods lie in recesses of the mounting caps which are accessible only from the bottom, and the spring clips 8, 9 and I lie in deeply cut grooves of the mounting bases 5.
In order to make the two conducting rods, which come to lie on both sides of each tubular lamp, invisible to the observer, a reflector can be placed between them and the tubular lamp} which also throws-forwards the light which otherwise would be radiated backward. a
The new mounting can also be used with equal success for sofilt lamps and for tubular lamps constructed in other ways.
What I claim as new and desire to secure by Letters Patent of the United States is:
1. A mounting for a two-base electric tubular lamp comprising a base for each end of the lamp, contact pins secured to one of said bases, contact clips electrically. connected to said contact pins and secured to said one of said bases, contact sleeves secured to the other of said bases, contact clips electrically connected to said contact sleeves and secured to said other of said bases, a contact plate secured to each of said bases for connecting the'two ends of said lamp, a contact clip connected to each of said contact plates and secured to said bases, a cap of insulating material Ior covering each end of the lamp, and rods secured to said caps forming a unitary structure and having bared ends for connecting said last named contact clips to one of said first named contact clips whereby electrical connection is completed to said contact plates.
2. A mounting for a two-base electric tubular lamp comprising a base for each end of the lamp, a contact clip secured to each side of each of said bases, a contact plate secured to each of said bases and electrically connected to one of said contact clips on its corresponding base and adapted to engage the opposite ends of the lamp, caps of insulating material adapted to cover the ends of said lamp, and a rod disposed 'on each side of said bases securing said caps together to form a unitary structure and having bared ends to engage the contact clips on a corresponding side of said bases completes the electrical connec tions to said lamp.
3. A mounting fora two-base electric tubular lamp comprising a base for each end-of the lamp, two contact clips juxtapositioned at one side of one base and a single contact clip located at the other side of said base, two juxtapositioned contact clips located at one side of the other base in line with the single contact clip of the first mentioned base, a single contact clip secured to the other base in line with the two juxtapositioned contacts of the first mentioned base, a contact plate secured to each of said bases and electrically connected to one of said juxtapositioned contact clips on its corresponding bases and adapted to engage opposite ends of the lamp, caps of insulated material adapted to cover the ends of the lamps, and rods connected to said caps and having bared, ends to interconnect the single and juxtapositioned contact clips on corresponding sides of said bases.
KURT WIEGAND.
US55924A 1935-01-23 1935-12-23 Mounting for a two-base electric tubular lamp Expired - Lifetime US2120121A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2814787A (en) * 1953-08-04 1957-11-26 Wayland D Keith Insulator support socket for fluorescent light tubes
FR2590413A1 (en) * 1985-11-21 1987-05-22 Sarlam Method for constituting one of the two conducting elements of a cutoff within an electrical appliance, and electrical appliance having a cutoff which includes such a conducting element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2814787A (en) * 1953-08-04 1957-11-26 Wayland D Keith Insulator support socket for fluorescent light tubes
FR2590413A1 (en) * 1985-11-21 1987-05-22 Sarlam Method for constituting one of the two conducting elements of a cutoff within an electrical appliance, and electrical appliance having a cutoff which includes such a conducting element

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