US1213754A - Flash-light lamp. - Google Patents

Flash-light lamp. Download PDF

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Publication number
US1213754A
US1213754A US11988716A US11988716A US1213754A US 1213754 A US1213754 A US 1213754A US 11988716 A US11988716 A US 11988716A US 11988716 A US11988716 A US 11988716A US 1213754 A US1213754 A US 1213754A
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United States
Prior art keywords
cap
battery
lamp
flash
contact
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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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US11988716A
Inventor
Friedrich David
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ENTERPRISE ELECTRIC NOVELTY Co
ENTPR ELECTRIC NOVELTY CO
Original Assignee
ENTPR ELECTRIC NOVELTY CO
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Filing date
Publication date
Application filed by ENTPR ELECTRIC NOVELTY CO filed Critical ENTPR ELECTRIC NOVELTY CO
Priority to US11988716A priority Critical patent/US1213754A/en
Application granted granted Critical
Publication of US1213754A publication Critical patent/US1213754A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0414—Arrangement of electric circuit elements in or on lighting devices the elements being switches specially adapted to be used with portable lighting devices

Definitions

  • lever Q() When the light is to be turned off, lever Q() will be moved to the other end of slot 23, during which movement the lever will be sprung away from its true line of travel on its pivot 21, by passage through the curvature 3D, so'that the lever'w'ill be held in place at the end of the slot. Accordingly there will be no electric circuit through the battery until the lever 20 is moved with force sufticient to' overcome the 'resistance offered by the curvature 30 of the slot 23.
  • a portable lamp comprising a cylindrical casing having an electric lainp mounted in one end thereofi one contact of the la'lnp being electrically connectedv to the casing; the other end of the easing being open; an electric battery adapted to be placed in Said open end of the casing in such a manner that one pole ot the battery vcan make Contact with the other contact of said lamp; a rotatable len'iovable cap havingu screw thread .adapted for electrical engagementy with a screw thread formed on said open end of the cylindrical easing;
  • said cap having an insulated contact prei '5'4'5v by serving to hold the battery against said .50
  • said cap having a manually operative lever pivoted thereto and in electric connection therewith and adapted to be thrown into or out of engagement with'said contact, whereby said lamp may be alternately lighted or extinguished.
  • a ⁇ portable lamp comprising a cylindrical casing inclosing an electrical battery; an electric lanip connected to the Casing and to one pole ol ⁇ l the battery; a rotatable removable rap having a screw thread adapted for electrical engagement with a screw thread formed on said cylindrical casing; said cap having an insulated contact adapted to be forced against the other pole of said battery by means of said screw threads when said eap is rotated; adjusting meansI for preventing rotating of said cap; said cap ⁇ having' a manually' operative lever pivoted thereto and in electric connection therewith and adapted to be thrown into or out of engagement with said contact,' whereb v said lamp may be alteri-iately lighted or extinguished.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Secondary Cells (AREA)

Description

F. DAVID. FLASH L|GHT"LAMP- AFPLICATION FILED SEPT-13. 1916.
Patented Jan; 23,1917.
FIGA.
of the slot. When the light is to be turned off, lever Q() will be moved to the other end of slot 23, during which movement the lever will be sprung away from its true line of travel on its pivot 21, by passage through the curvature 3D, so'that the lever'w'ill be held in place at the end of the slot. Accordingly there will be no electric circuit through the battery until the lever 20 is moved with force sufticient to' overcome the 'resistance offered by the curvature 30 of the slot 23.
I-Iaving described my invention,'what I claim is@ 1. A portable lamp, comprising a cylindrical casing linclosing an electric battery; an electric laxnp connected to the casing and to one pole of 'the battery; a rotatable removable cap having ascrew thread adapted for elet-tri al engagement with "a screw thread formed on said cylindrical casing; said cap having lan insulatedv contact adapted :to be forced against the other pole of said battery by means of said screw threads when said cap is rotated, said=cap having a manually operative lever pivoted thereto and in electric connection therewith and adapted to be thrown into or out ofen-4 gagenient with said contact, whereby said lamp inlay be alternately lighted or eX- tinguished. A
21 A portable lamp, comprising a cylindrical casing having an electric lainp mounted in one end thereofi one contact of the la'lnp being electrically connectedv to the casing; the other end of the easing being open; an electric battery adapted to be placed in Said open end of the casing in such a manner that one pole ot the battery vcan make Contact with the other contact of said lamp; a rotatable len'iovable cap havingu screw thread .adapted for electrical engagementy with a screw thread formed on said open end of the cylindrical easing;
said cap having an insulated contact prei '5'4'5v by serving to hold the battery against said .50
lamp; said cap having a manually operative lever pivoted thereto and in electric connection therewith and adapted to be thrown into or out of engagement with'said contact, whereby said lamp may be alternately lighted or extinguished.
A\ portable lamp, comprising a cylindrical casing inclosing an electrical battery; an electric lanip connected to the Casing and to one pole ol`l the battery; a rotatable removable rap having a screw thread adapted for electrical engagement with a screw thread formed on said cylindrical casing; said cap having an insulated contact adapted to be forced against the other pole of said battery by means of said screw threads when said eap is rotated; adjusting meansI for preventing rotating of said cap; said cap `having' a manually' operative lever pivoted thereto and in electric connection therewith and adapted to be thrown into or out of engagement with said contact,' whereb v said lamp may be alteri-iately lighted or extinguished. l
Signed at New York city in the county of New )forli and State ol New York this 12th day of September A. D. 1916.
' FRIEDRICH DAVID.
US11988716A 1916-09-13 1916-09-13 Flash-light lamp. Expired - Lifetime US1213754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11988716A US1213754A (en) 1916-09-13 1916-09-13 Flash-light lamp.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11988716A US1213754A (en) 1916-09-13 1916-09-13 Flash-light lamp.

Publications (1)

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US1213754A true US1213754A (en) 1917-01-23

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US11988716A Expired - Lifetime US1213754A (en) 1916-09-13 1916-09-13 Flash-light lamp.

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