US2598006A - Holder for carbons used in projecting machines - Google Patents

Holder for carbons used in projecting machines Download PDF

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Publication number
US2598006A
US2598006A US122874A US12287449A US2598006A US 2598006 A US2598006 A US 2598006A US 122874 A US122874 A US 122874A US 12287449 A US12287449 A US 12287449A US 2598006 A US2598006 A US 2598006A
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United States
Prior art keywords
holder
carbon
carbons
carbons used
projecting machines
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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US122874A
Inventor
John E Marr
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.)
LEO D REIMANN
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LEO D REIMANN
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Publication date
Application filed by LEO D REIMANN filed Critical LEO D REIMANN
Priority to US122874A priority Critical patent/US2598006A/en
Application granted granted Critical
Publication of US2598006A publication Critical patent/US2598006A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B31/00—Electric arc lamps
    • H05B31/02—Details
    • H05B31/18—Mountings for electrodes; Electrode feeding devices
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S403/00—Joints and connections
    • Y10S403/05—Carbon electrode
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49751—Scrap recovering or utilizing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/49—Member deformed in situ
    • Y10T403/4966—Deformation occurs simultaneously with assembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/57—Distinct end coupler
    • Y10T403/5746—Continuous thread

Definitions

  • This invention relates generally to the motion picture industry and particularly to a holder for carbons used in projecting machines.
  • the main object of this invention is to make it possible to utilize practically all of the carbon elements instead of discarding large portions of the carbon merely because they are not long enough to make a complete run.
  • the second object is to produce a saving of about fifty per cent of the cost of carbons.
  • the third object is to produce a holder or extension for the carbons which can utilize what are ordinarily waste ends of carbons.
  • the fourth object is to produce an inexpensive form of holder which will be easy to manufacture, low in cost and simple to apply to the carbons.
  • the fifth object is to hold the carbon element in axial alignment with the holder and insure a proper contact at the union of the holder and carbon.
  • Fig. 1 is a perspective view of the holder and carbon showing for the purpose of simple illustration a water jacketed mount with a portion broken away in section.
  • Fig. 2 is a fragmentary perspective section taken along the line 2-2 in Fig. 1, showing the union of the carbon and holder and the mannor of insuring the proper contact.
  • Fig. 3 is a transverse section taken along the line 3-3 in Fig. 1.
  • a water jacketed mounting Ill through which extends my carbon holder H which is a pointed and hardened screw 18 of the self-tapping type.
  • the end i5 has formed around the hole 16 a rounded recess 19 which fits the rounded end 26 of the carbon 2
  • and 23 is, of course, employed but it forms no part of the present invention and is not illustrated or described.
  • has been magnified in order to better illustrate the invention.
  • the holder II is only slightly smaller in diameter than the carbon 2 i.
  • a carbon holder for use in picture projectin machines comprising a metal rod of slightly less diameter than that of the carbon to be held and having a cupped end and having a. self-tappin screw projecting from said cupped end along its axis, the outer edge of said cupped end being bevelled to form a sharp edge around the outer rim of said cup.

Description

May 27, 1952 J. E. MARR 2,598,006
HOLDER FOR CARBONS USED IN PROJECTING MACHINES Filed Oct. 22, 1949 //\/4/E/\/TUR JOHN f: MARR Fatented May 27, 1952 UNITED STATES PATENT OFFICE HOLDER FOR CARBONS USED IN PROJECTING MACHINES Application October 22, 1949, Serial No. 122,874
1 Claim.
This invention relates generally to the motion picture industry and particularly to a holder for carbons used in projecting machines.
The main object of this invention is to make it possible to utilize practically all of the carbon elements instead of discarding large portions of the carbon merely because they are not long enough to make a complete run.
The second object is to produce a saving of about fifty per cent of the cost of carbons.
The third object is to produce a holder or extension for the carbons which can utilize what are ordinarily waste ends of carbons.
The fourth object is to produce an inexpensive form of holder which will be easy to manufacture, low in cost and simple to apply to the carbons.
The fifth object is to hold the carbon element in axial alignment with the holder and insure a proper contact at the union of the holder and carbon.
I accomplish these and other objects in the manner set forth in the following specification as illustrated by the accompanying drawing, in which:
Fig. 1 is a perspective view of the holder and carbon showing for the purpose of simple illustration a water jacketed mount with a portion broken away in section.
Fig. 2 is a fragmentary perspective section taken along the line 2-2 in Fig. 1, showing the union of the carbon and holder and the mannor of insuring the proper contact.
Fig. 3 is a transverse section taken along the line 3-3 in Fig. 1.
Like numbers of reference refer to the same or similar parts throughout the several views.
Referring in detail to the drawing, there is shown a water jacketed mounting Ill through which extends my carbon holder H which is a pointed and hardened screw 18 of the self-tapping type. The end i5 has formed around the hole 16 a rounded recess 19 which fits the rounded end 26 of the carbon 2| The usual automatic means for maintaining the proper gap 22 between the carbons 2| and 23 is, of course, employed but it forms no part of the present invention and is not illustrated or described.
In the illustration, the difference in diameters of the holder II and carbon 2| has been magnified in order to better illustrate the invention. In practice, the holder II is only slightly smaller in diameter than the carbon 2 i.
When mounting the carbon 2| on the holder H the rounded carbon end 20 which is relatively soft is placed on the screw l8 and turned until it is firmly seated in the cup [9, producing an excellent contact. As the carbon is burned away, it is advanced automatically until the need for it is gone or until the screw I8 reaches the mating carbon 23.
I claim:
A carbon holder for use in picture projectin machines comprising a metal rod of slightly less diameter than that of the carbon to be held and having a cupped end and having a. self-tappin screw projecting from said cupped end along its axis, the outer edge of said cupped end being bevelled to form a sharp edge around the outer rim of said cup.
JOHN E. MARR.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 863,674 Tone Aug. 20, 1907 1,115,027 Seabury Oct. 27, 1914 1,723,626 Kravitz et a1 Aug. 6, 1929 1,912,560 Wiles June 6, 1933 FOREIGN PATENTS Number Country Date 26,367 Great Britain Aug. 27, 1914
US122874A 1949-10-22 1949-10-22 Holder for carbons used in projecting machines Expired - Lifetime US2598006A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US122874A US2598006A (en) 1949-10-22 1949-10-22 Holder for carbons used in projecting machines

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US122874A US2598006A (en) 1949-10-22 1949-10-22 Holder for carbons used in projecting machines

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2887769A (en) * 1954-10-08 1959-05-26 Arthur E Narlock Method for utilizing short sticks of carbon
DE1285622B (en) * 1963-10-31 1968-12-19 Lorraine Carbone Negative carbon electrode for arc lamps

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US863674A (en) * 1906-09-25 1907-08-20 Frank J Tone Joint for carbon electrodes.
US1115027A (en) * 1911-08-02 1914-10-27 Nat Carbon Co Electrode.
US1723626A (en) * 1927-02-05 1929-08-06 Kravitz Morris Carbon saver
US1912560A (en) * 1930-06-02 1933-06-06 Buffalo Electric Furnace Corp Refractory lined hollow electrode

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US863674A (en) * 1906-09-25 1907-08-20 Frank J Tone Joint for carbon electrodes.
US1115027A (en) * 1911-08-02 1914-10-27 Nat Carbon Co Electrode.
US1723626A (en) * 1927-02-05 1929-08-06 Kravitz Morris Carbon saver
US1912560A (en) * 1930-06-02 1933-06-06 Buffalo Electric Furnace Corp Refractory lined hollow electrode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2887769A (en) * 1954-10-08 1959-05-26 Arthur E Narlock Method for utilizing short sticks of carbon
DE1285622B (en) * 1963-10-31 1968-12-19 Lorraine Carbone Negative carbon electrode for arc lamps

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