US1549837A - Focusing-light-source support - Google Patents
Focusing-light-source support Download PDFInfo
- Publication number
- US1549837A US1549837A US630665A US63066523A US1549837A US 1549837 A US1549837 A US 1549837A US 630665 A US630665 A US 630665A US 63066523 A US63066523 A US 63066523A US 1549837 A US1549837 A US 1549837A
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- US
- United States
- Prior art keywords
- bracket
- bolts
- studs
- light source
- lamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- 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
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
- F21S41/657—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by moving light sources
Definitions
- This invention includes a three or a four point support, any or all of said points being adjustable to position the light source and the use of inclined planes with these supports to take up lost motion and insure a tight fit between the parts.
- use is made of a V groove engaged by an inclined member thus actugroove which prevents lost motion without requiring the engaging parts to be accurately fitted.
- the supports have a screw adjustment which secures a micrometer adjustment for the bracket, and in carrying out this arrangement, the adjustment, when once set, may be permanently retained by the detachable member which is supported by the bracket, thus enabling the adjustment to be made in a shop or laboratory with precision and the device afterwards placed in service without the adjustment being changed.
- Fig. 1 is an elevation of a lamp sup port embodying my invention
- Fig. 2 is an end elevation of Fig. l, with the bulb removed
- Fig. 3 is a sectional detail of the i back of Fig. 2.
- Fig. 4 shows another application of my invention for focussing a lamp
- Fig. 5 shows another form of lamp stand embodying my invention which may be used alternative to the construction shown in Fig. 1, Figs. 6 and 7'are details of the construction used in Fig. 5.
- bolic reflector for headlights, or behind the lens of a signal lamp requires that the source of illumination be adjusted with precision in the exact focus of the reflector or lens and in the accompanying drawings my invention has been extensively illustrated for this purpose although I regard this as only one of the uses to which it may, with advantage, be applied. It is not commercially possible to make electric bulbs with their filaments universally positioned relative to the geometric centre of the bulb and to the supporting socket.
- a screw type of socket has no fixed position or stop relative to the filament and with the bayonet type of socket the engaging pins may not always bear a fixed relation to the filament.
- the present invention enables any of these types of lamp bulbs to be used without selection and their filament adjusted to the focal point desired.
- the application of this invention requires the use of two separate elements, one of which is known as the fixed bracket which may be adjustably positioned and is provided with means for engaging the other element or supported member which in turn carries the object to be supported; the latter may be adjustable relative to the fixed bracket and the object itself may be adjustably secured to it.
- the arrangement of my invention shown in' Fig. 1 may be used for a signal lamp or a locomotive headlight or other places where adjustment of a lamp filament in the focal plane of a lens cannot be conveniently carried out when the lamp bulb is installed or replaced.
- the lamp support is detachable with the lamp bulb and is supported by adjustable means to a fixed bracket in the lamp housing, this bracket being positioned relative to the focal centre desired.
- the lamp support has adjustably secured thereto a socket base for the lamp bulb and when a new bulb is applied to this support it is set up on a. testing stand before a lens or in a reflector similar to the conditions under which it is actually used as for instance in the signal lamp, Fig. 1.
- the support itself is adjusted on a fixed bracket on a testing stand and the socket base is adjusted as required to bring the filament into the exact focus, then the support together with the bulb are placed in service without changing the adjustment made on the testing stand.
- the lamp support is thus a portable unit adjusted to each individual bulb and removed and replaced with the bulb.
- FIG. 51 is a lamp housing containing the lens 52 and resting on the support 53.
- the fixedbracket 5411s spaced from the lamp housing and adjustably positioned by the bolts 55 and the studs 56.
- the method of securing these parts will be understood from the drawings.
- the bolts 55 in one plane hold the parts together while the studs 56 in a plane at right angles to the bolts hold the bracket 54 spaced from the lamp housing.
- the extent of this spacing is, of course, regulated by the studs which are provided with lock nuts to: hold them inthe position to which they have been adjusted.
- the bracket 54 turns on the bolts 55 as a pivot and when one bolt is adjusted.
- bracket 54 tilts about the studs as a pivot. This tilts the vertical arm of the bracket 54 in two planes at right angles to each other. By this means the beam of light from the lamp 68 is adjusted as desired relative to lens 52 wit-h a micrometer adjustment.
- the nuts on bolts 55 are prevented from turning by the turned up strap 59 as shown.
- the vertical arm 54 of bracket 54 as shown in section in Fig. 3, is provided-with a slot 57 which is formed in a V groove and with a pair of ridges 58 equally spaced from the slot.
- the detachable bracket or support 61 is secured to the vertical arm 54 by the bolts 62 the heads of which are countersunk so as to be self-centering in the slot 57 which they engage.
- a socket 64 in the bracket 61 receives the insulated block 65 in which the tubular brass socket 67 forming a support for the base of the bulb is positioned. This part is clamped by the screw 66 in position after the bulb 68 has been properly adjusted.
- the bulbwith its supporting bracket 61 may be set up in a testing outfit, adjusted to bring the filament into exact focus and then placed in service in the lantern 51 by slidably engaging vertical arm 54 as shown.
- Fig. 4 shows the application of my invention for adjusting the light in a parabolic reflector in'which 71 is the reflector, 72 is the trout glass. 73 is the lamp bulb supported by the socket 75 which is clamped in block 74. This block is adjusted relative to the reflector by bolts and studs as shown in a manner similar to that already described.
- the construction shown in Fig. 5 is another form of my invention for supporting a lamp which includes all the features of ad justment shown in Fig. 1.
- the base 81 is adjustably spaced and positioned by the bolts 83 and the studs 82.
- This base is provided with a flat contact plate 84 to which the binding post 85 is attached and a contact plate 86 to which the binding post 87 is attached. It will be noted that the contact plate 86 is arched to form a spring action when depressed.
- the lamp bulb is attached to the socket 94 which is secured to the stem 93, this stem being secured to the circular base 90.
- the circular base is secured to 81 by the bolts 91 and the studs 92.
- the bolts pass through the key-hole slots 88 and 89 in 81 so that by sliding to one side the lamp support can easily be detached from the base 81.
- the studs 92 engage the contact plates 84 and 86 making the circuit from the binding posts 85 and 87 to the bulb so that when the bulb with its support is removed there are no wires to be disconnected.
- the stud which engages the contact plate 86 is forced over the rise of this plate so that the contact on both studs is maintained with. a spring action and this spring prevents the parts from working loose.
- This type of construction is particularly adaptable for changing over lamps originally designed for oil founts to the use of electric light.
- the base 81 is made substantially of the same dimensions as an oil fount.
- a. housing, a lens, a light source and a compound bracket for supporting the light source in focal relation to the lens said compound bracket comprising two members, one member secured to said housing and provided with inclined planes and the second member carrying the light source, two bolts adjustably connecting said bracket members and two studs at right angles to said bolts adjustably spacing said bracket members apart, said studs engaging said inclined planes, said light source being adjustable relative to said lens by adjusting said stubs and bolts relative to each other.
- a light projector the combination of a housing, a lens, a light source supported in-focal relation to said lens, a bracket for supporting the light source, an arm with a slot therein secured to said housing, said bracket secured to said arm by two bolts engaging said slot and by two. studs engaging said arm at right angles to said bolts whereby the position of said light relative to said lens is adjusted by turning said bracket about said bolts as a pivot when about said'studs as a said studs are adjusted and by turning it about said studs as a pivot when said bolts are adjusted.
- a light projector the combination of a housing, a lens, a light source supported in focal relation to said lens, a bracket for supporting the light source, an arm with a slot therein and having an inclined plane secured to said housing, said bracket secured to said arm by bolts engaging said slot and by studs at right angles to said bolts one of which engages said inclined plane/[he posit-ion of said light relative to said lens being adjusted by turning said bracket about said bolts as a pivot when said studs are adjusted and by turning it pivot when said bolts are adjusted.
- a light projector the combination of a housing, a lens, a light source and a compound bracket for supporting the light source in focal relation to said lens, said compound bracket comprising a primary member adjustably supported by said housing and a secondary member carrying the light source adjustably supported by said primary member, a pair of bolts in one of said members slidably engaging the other member and a pair of studs at right angles to said bolts spacing'said members apart, the position of said light source relative to said lens being adjustable by said bolts and studs.
- a light projector the combination of a housing, a light source and a compound bracket for supporting said light source, said compound bracket comprising a primary member adjustably supported by said housing and a secondary member carrying the light source adjustably and detachably supported by said primary member, two bolts connecting said members in one plane and two studs at right angles to said bolts spacing said members apart, the position of said light source being adjustable by said bolts and studs.
- a light projector the combination of a housing, a light source and a compound bracket for supporting the light source, said compound bracket comprising a primary member supported by said housing and adjustable in two planes at right angles to each other and a secondary member carrying,
- the light source and adjustably sup orted by said primary member, a pair 0 bolts slidably connecting said bracket members and a pair of studs at right angles to said bolts spacing said members apart, said secondary member being adjustably positioned by said bolts and studs and detachable from said primary member without changing said adj ustment;
- a light source and a compound bracket for supporting the light source, said bracket comprising a primary member having an inclined plane and a slot associated therewith, a secondary member carrying said light source, a plurality of adjustable con-' nections between said bracket members engaging said slot and a pair of studs at right
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
Au 18, 1925. I S. P. HULL FOCUSING LIGHT SOURCE SUPPORT Filed April '7, 1923 A TTORNE Y.
Patented Aug. 1925.
UNITED/STATES SAMUEL r. HULL, or NEW YORK, N. Y.
FOCUSING-LIGHT-SOURGE SUPPORT.
Application filed April 7, 1923.
To all whom it may concern:
Be it known that I, SAMUEL P. HULL, a citizen of the United States, and resident of New York city, in the county of New York and State of New York, have inventedher of times in exactlythe same position.
This invention includes a three or a four point support, any or all of said points being adjustable to position the light source and the use of inclined planes with these supports to take up lost motion and insure a tight fit between the parts. In applying this invention use is made of a V groove engaged by an inclined member thus actugroove which prevents lost motion without requiring the engaging parts to be accurately fitted. The supports have a screw adjustment which secures a micrometer adjustment for the bracket, and in carrying out this arrangement, the adjustment, when once set, may be permanently retained by the detachable member which is supported by the bracket, thus enabling the adjustment to be made in a shop or laboratory with precision and the device afterwards placed in service without the adjustment being changed. Other objects of the invention will appear from the descriptive details in the following specification and illustrated in the accompanying drawings in which, Fig. 1 is an elevation of a lamp sup port embodying my invention, Fig. 2 is an end elevation of Fig. l, with the bulb removed, Fig. 3 is a sectional detail of the i back of Fig. 2.
Fig. 4 shows another application of my invention for focussing a lamp, Fig. 5 shows another form of lamp stand embodying my invention which may be used alternative to the construction shown in Fig. 1, Figs. 6 and 7'are details of the construction used in Fig. 5.
The use of concentrated filament lamps, usually operated on low voltage, in a parafrom the bracket and replaceable any mumally securing a two point contact in the Serial- No. 630,665.
bolic reflector for headlights, or behind the lens of a signal lamp, requires that the source of illumination be adjusted with precision in the exact focus of the reflector or lens and in the accompanying drawings my invention has been extensively illustrated for this purpose although I regard this as only one of the uses to which it may, with advantage, be applied. It is not commercially possible to make electric bulbs with their filaments universally positioned relative to the geometric centre of the bulb and to the supporting socket. A screw type of socket has no fixed position or stop relative to the filament and with the bayonet type of socket the engaging pins may not always bear a fixed relation to the filament. The present invention enables any of these types of lamp bulbs to be used without selection and their filament adjusted to the focal point desired.
The application of this invention requires the use of two separate elements, one of which is known as the fixed bracket which may be adjustably positioned and is provided with means for engaging the other element or supported member which in turn carries the object to be supported; the latter may be adjustable relative to the fixed bracket and the object itself may be adjustably secured to it.
The arrangement of my invention shown in' Fig. 1 may be used for a signal lamp or a locomotive headlight or other places where adjustment of a lamp filament in the focal plane of a lens cannot be conveniently carried out when the lamp bulb is installed or replaced. In this application the lamp support is detachable with the lamp bulb and is supported by adjustable means to a fixed bracket in the lamp housing, this bracket being positioned relative to the focal centre desired. The lamp support has adjustably secured thereto a socket base for the lamp bulb and when a new bulb is applied to this support it is set up on a. testing stand before a lens or in a reflector similar to the conditions under which it is actually used as for instance in the signal lamp, Fig. 1. The support itself is adjusted on a fixed bracket on a testing stand and the socket base is adjusted as required to bring the filament into the exact focus, then the support together with the bulb are placed in service without changing the adjustment made on the testing stand. The lamp support is thus a portable unit adjusted to each individual bulb and removed and replaced with the bulb.
In the drawing 51 is a lamp housing containing the lens 52 and resting on the support 53. The fixedbracket 5411s spaced from the lamp housing and adjustably positioned by the bolts 55 and the studs 56. The method of securing these parts will be understood from the drawings. The bolts 55 in one plane hold the parts together while the studs 56 in a plane at right angles to the bolts hold the bracket 54 spaced from the lamp housing. The extent of this spacing, is, of course, regulated by the studs which are provided with lock nuts to: hold them inthe position to which they have been adjusted. When one stud is adjusted relative to the other the bracket 54 turns on the bolts 55 as a pivot and when one bolt is adjusted. relative to the other the bracketturns about the studs as a pivot. This tilts the vertical arm of the bracket 54 in two planes at right angles to each other. By this means the beam of light from the lamp 68 is adjusted as desired relative to lens 52 wit-h a micrometer adjustment. The nuts on bolts 55 are prevented from turning by the turned up strap 59 as shown. The vertical arm 54 of bracket 54 as shown in section in Fig. 3, is provided-with a slot 57 which is formed in a V groove and with a pair of ridges 58 equally spaced from the slot. The detachable bracket or support 61 is secured to the vertical arm 54 by the bolts 62 the heads of which are countersunk so as to be self-centering in the slot 57 which they engage. The studs 63 at right angles to the bolts 62 engage the inclined ridges 58 and space and adjust '61 relative to 54 in a manner similar to that described in connection with the support of 54 relative to the lamp housing. These studs are threaded into 61 and are provided with lock nuts so that they can be locked in position and retain the adjustment. A socket 64 in the bracket 61 receives the insulated block 65 in which the tubular brass socket 67 forming a support for the base of the bulb is positioned. This part is clamped by the screw 66 in position after the bulb 68 has been properly adjusted. Thus the bulbwith its supporting bracket 61 may be set up in a testing outfit, adjusted to bring the filament into exact focus and then placed in service in the lantern 51 by slidably engaging vertical arm 54 as shown.
The construction in Fig. 4 shows the application of my invention for adjusting the light in a parabolic reflector in'which 71 is the reflector, 72 is the trout glass. 73 is the lamp bulb supported by the socket 75 which is clamped in block 74. This block is adjusted relative to the reflector by bolts and studs as shown in a manner similar to that already described.
The construction shown in Fig. 5 is another form of my invention for supporting a lamp which includes all the features of ad justment shown in Fig. 1. In this case the base 81 is adjustably spaced and positioned by the bolts 83 and the studs 82. This base is provided with a flat contact plate 84 to which the binding post 85 is attached and a contact plate 86 to which the binding post 87 is attached. It will be noted that the contact plate 86 is arched to form a spring action when depressed. The lamp bulb is attached to the socket 94 which is secured to the stem 93, this stem being secured to the circular base 90. The circular base is secured to 81 by the bolts 91 and the studs 92. The bolts pass through the key-hole slots 88 and 89 in 81 so that by sliding to one side the lamp support can easily be detached from the base 81. The studs 92 engage the contact plates 84 and 86 making the circuit from the binding posts 85 and 87 to the bulb so that when the bulb with its support is removed there are no wires to be disconnected. The stud which engages the contact plate 86 is forced over the rise of this plate so that the contact on both studs is maintained with. a spring action and this spring prevents the parts from working loose. This type of construction is particularly adaptable for changing over lamps originally designed for oil founts to the use of electric light. The base 81 is made substantially of the same dimensions as an oil fount.
Having thus described my invention, I claim:
1. In a light projector, the combination of a. housing, a lens, a light source and a compound bracket for supporting the light source in focal relation to the lens, said compound bracket comprising two members, one member secured to said housing and provided with inclined planes and the second member carrying the light source, two bolts adjustably connecting said bracket members and two studs at right angles to said bolts adjustably spacing said bracket members apart, said studs engaging said inclined planes, said light source being adjustable relative to said lens by adjusting said stubs and bolts relative to each other.
2. In a light projector, the combination ofa housing, a lens, a light source supported in-focal relation to said lens, a bracket for supporting the light source, an arm with a slot therein secured to said housing, said bracket secured to said arm by two bolts engaging said slot and by two. studs engaging said arm at right angles to said bolts whereby the position of said light relative to said lens is adjusted by turning said bracket about said bolts as a pivot when about said'studs as a said studs are adjusted and by turning it about said studs as a pivot when said bolts are adjusted.
3. In a light projector, the combination of a housing, a lens, a light source supported in focal relation to said lens, a bracket for supporting the light source, an arm with a slot therein and having an inclined plane secured to said housing, said bracket secured to said arm by bolts engaging said slot and by studs at right angles to said bolts one of which engages said inclined plane/[he posit-ion of said light relative to said lens being adjusted by turning said bracket about said bolts as a pivot when said studs are adjusted and by turning it pivot when said bolts are adjusted.
4. In a light projector, the combination of a housing, a lens, a light source and a compound bracket for supporting the light source in focal relation to said lens, said compound bracket comprising a primary member adjustably supported by said housing and a secondary member carrying the light source adjustably supported by said primary member, a pair of bolts in one of said members slidably engaging the other member and a pair of studs at right angles to said bolts spacing'said members apart, the position of said light source relative to said lens being adjustable by said bolts and studs.
5. In a light projector, the combination of a housing, a light source and a compound bracket for supporting said light source, said compound bracket comprising a primary member adjustably supported by said housing and a secondary member carrying the light source adjustably and detachably supported by said primary member, two bolts connecting said members in one plane and two studs at right angles to said bolts spacing said members apart, the position of said light source being adjustable by said bolts and studs.
6. In a light projector, the combination of a housing, a light source and a compound bracket for supporting the light source, said compound bracket comprising a primary member supported by said housing and adjustable in two planes at right angles to each other and a secondary member carrying,
the light source and adjustably sup orted by said primary member, a pair 0 bolts slidably connecting said bracket members and a pair of studs at right angles to said bolts spacing said members apart, said secondary member being adjustably positioned by said bolts and studs and detachable from said primary member without changing said adj ustment;
7. In a light projector, the combination of a light source and a compound bracket for supporting the light source, said bracket comprising a primary member having an inclined plane and a slot associated therewith, a secondary member carrying said light source, a plurality of adjustable con-' nections between said bracket members engaging said slot and a pair of studs at right
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US630665A US1549837A (en) | 1923-04-07 | 1923-04-07 | Focusing-light-source support |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US630665A US1549837A (en) | 1923-04-07 | 1923-04-07 | Focusing-light-source support |
Publications (1)
Publication Number | Publication Date |
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US1549837A true US1549837A (en) | 1925-08-18 |
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US630665A Expired - Lifetime US1549837A (en) | 1923-04-07 | 1923-04-07 | Focusing-light-source support |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3286591A (en) * | 1965-03-30 | 1966-11-22 | Optical Gaging Prod Inc | Adjustable mounting plate |
-
1923
- 1923-04-07 US US630665A patent/US1549837A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3286591A (en) * | 1965-03-30 | 1966-11-22 | Optical Gaging Prod Inc | Adjustable mounting plate |
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