US1974294A - Folding duplex flash light - Google Patents
Folding duplex flash light Download PDFInfo
- Publication number
- US1974294A US1974294A US718838A US71883834A US1974294A US 1974294 A US1974294 A US 1974294A US 718838 A US718838 A US 718838A US 71883834 A US71883834 A US 71883834A US 1974294 A US1974294 A US 1974294A
- Authority
- US
- United States
- Prior art keywords
- flash light
- duplex
- lights
- folding
- light
- 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
Links
- 238000010276 construction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L4/00—Electric lighting devices with self-contained electric batteries or cells
Definitions
- This invention relates to folding duplex flashlights.
- Fig 1 is a plan view of my improved folding duplex flashlight and shows a pair of flashlights in axial alignment
- Fig. 2 is a plan View showing the flashlight of Fig. 1 so positioned that the pair of lights are in side by side parallel relation.
- numerals 3 and 4 indicate flashlights of the usual construction, the same being pivotally connected by means of a hinge 5 at their proximal ends so that they may be positioned either in axial alignment, as shown in Fig. 1, or in side by side parallel relation, as shown in Fig. 2.
- the proximal end of one of the flashlights is provided with a catch '7 adapted to be snapped into an aperture 8 in the flashlight 3 so as to hold the two lights in axial alignment when the lights are desired in that position.
- a catch '7 adapted to be snapped into an aperture 8 in the flashlight 3 so as to hold the two lights in axial alignment when the lights are desired in that position.
- the light 3 is provided with a catch 9 adapted to be snapped into an aperture 10 formed in the light 4.
- the pair of lights are desirably positioned in axial alignment when they are used by a person walking along the road, so that the forward light may be used for guidance and may be seen by the driver of an oncoming automobile, While the rear light may serve as a signal to automobile drivers coming from the rear.
- Either one or both of the lenses in the lights may be of red glass or other color.
- the device When the lights are positioned in parallel relation, the device affords more light than would a single light of the power used in one of the lights.
- a pair of hand flashlights having tubular casings and lamps at one end of each, said casings being pivotally connected at their proximal ends to allow them to be moved from parallel to aligned position and vice versa, and means for holding them together in either position.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Description
Sept. 18, 1934. J. J. WALSH 9 M FOLDING DUPLEX FLASH LIGHT Filed.April 3, 1934 Q i N M Q N H 10 to N Joh ihfa/sh INVENTOR ATTO R N EY Patented Sept. 18, 1934 FOLDING DUPLEX FLASH LIGHT John J. Walsh, Yonkers, N. Y.
Application April 3, 1934, Serial No. 718,838
3 Claims.
This invention relates to folding duplex flashlights. a
The invention will be fully and comprehensively understood from a consideration or" the following detailed description when read in connection with the accompanying drawing which forms part of the application, with the understanding, however, that the improvement is capable of extended application and is not confined to the exact showing of the drawing nor to the precise construction described and, therefore, such changes and modifications may be made therein as do not afiect the spirit of the invention nor exceed the scope thereof as expressed in the appended claims.
In the drawing:
Fig 1 is a plan view of my improved folding duplex flashlight and shows a pair of flashlights in axial alignment; and
Fig. 2 is a plan View showing the flashlight of Fig. 1 so positioned that the pair of lights are in side by side parallel relation.
Referring to the drawing for a more detailed description thereof, numerals 3 and 4indicate flashlights of the usual construction, the same being pivotally connected by means of a hinge 5 at their proximal ends so that they may be positioned either in axial alignment, as shown in Fig. 1, or in side by side parallel relation, as shown in Fig. 2. The proximal end of one of the flashlights is provided with a catch '7 adapted to be snapped into an aperture 8 in the flashlight 3 so as to hold the two lights in axial alignment when the lights are desired in that position. In order to hold the lights in parallel relation, as
shown in Fig. 2, the light 3 is provided with a catch 9 adapted to be snapped into an aperture 10 formed in the light 4.
The pair of lights are desirably positioned in axial alignment when they are used by a person walking along the road, so that the forward light may be used for guidance and may be seen by the driver of an oncoming automobile, While the rear light may serve as a signal to automobile drivers coming from the rear.
Either one or both of the lenses in the lights may be of red glass or other color.
When the lights are positioned in parallel relation, the device affords more light than would a single light of the power used in one of the lights.
to aligned position.
3. A pair of hand flashlights having tubular casings and lamps at one end of each, said casings being pivotally connected at their proximal ends to allow them to be moved from parallel to aligned position and vice versa, and means for holding them together in either position.
JOHN J. WALSH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US718838A US1974294A (en) | 1934-04-03 | 1934-04-03 | Folding duplex flash light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US718838A US1974294A (en) | 1934-04-03 | 1934-04-03 | Folding duplex flash light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1974294A true US1974294A (en) | 1934-09-18 |
Family
ID=24887757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US718838A Expired - Lifetime US1974294A (en) | 1934-04-03 | 1934-04-03 | Folding duplex flash light |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1974294A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2586265A (en) * | 1947-09-25 | 1952-02-19 | Clyde C Russell | Trouble light for illuminating work areas and projecting warning beams |
| US2816215A (en) * | 1956-04-20 | 1957-12-10 | Calvin E Jarred | Folding flashlight |
| US5217297A (en) * | 1990-09-28 | 1993-06-08 | John Manufacturing Limited | Combined incandescent/fluorescent lantern |
| USD421315S (en) * | 1995-10-12 | 2000-02-29 | John Manufacturing Limited | Senior signal lantern |
| GB2416025A (en) * | 2004-07-06 | 2006-01-11 | John Mfg Ltd | Multi-lamp torch with swivel handle |
-
1934
- 1934-04-03 US US718838A patent/US1974294A/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2586265A (en) * | 1947-09-25 | 1952-02-19 | Clyde C Russell | Trouble light for illuminating work areas and projecting warning beams |
| US2816215A (en) * | 1956-04-20 | 1957-12-10 | Calvin E Jarred | Folding flashlight |
| US5217297A (en) * | 1990-09-28 | 1993-06-08 | John Manufacturing Limited | Combined incandescent/fluorescent lantern |
| USD421315S (en) * | 1995-10-12 | 2000-02-29 | John Manufacturing Limited | Senior signal lantern |
| GB2416025A (en) * | 2004-07-06 | 2006-01-11 | John Mfg Ltd | Multi-lamp torch with swivel handle |
| GB2416025B (en) * | 2004-07-06 | 2008-12-24 | John Mfg Ltd | Portable multi-purpose lantern |
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