US1602227A - Fuse holder - Google Patents

Fuse holder Download PDF

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Publication number
US1602227A
US1602227A US725059A US72505924A US1602227A US 1602227 A US1602227 A US 1602227A US 725059 A US725059 A US 725059A US 72505924 A US72505924 A US 72505924A US 1602227 A US1602227 A US 1602227A
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United States
Prior art keywords
fuse
cover
contact
receptacle
clip
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
Application number
US725059A
Inventor
Charles T Hentschel
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General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Priority to US725059A priority Critical patent/US1602227A/en
Application granted granted Critical
Publication of US1602227A publication Critical patent/US1602227A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/54Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers
    • H01H85/542Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers the intermediate or auxiliary part being provided with bayonet-type locking means

Definitions

  • My invention relates to fuse holders and has for its object the provision of a fuse holder embodying a closed protective casing for the fuse and' contact parts such that the fuse may be easily and quickly inserted and removed.
  • My invention has particular application in installations in which it is desired for urposes of accessibility to mount the fuse 1n an exposed position, such as on the front of a switchboard.
  • I mount the fuse 1n a casing pro# vided with a quickly detachable cover, the contact clips for the fuse being secured to the casing and cove-r respectively and bein so arranged that the fuse may be inserte and removed with the cover.
  • FIG. 1 is a side elevation view of a fuse holder embodying my invention
  • Fig. 2 is a sectional view taken along the line 2-2 of Fig. 1 looking in the direction of the arrows.
  • the fuse holder comprises a hollow cylindrical receptacle member or body 11 made of a suitable insulating material, such as a bakelized compound. One end of the body 11 is closed'; as shown, the left-hand end is closed.
  • member 11 is mounted in an aperture 12 ins the support 10 and is provided with a fiange 13 which is seated on the support. It is held in place on the support by means of a. tubular member 14 which is slipped over the open end of member'll onto the flange 13 and is provided with a flanged base 15 through which screws 16 extend into the support 10 to hold the member 14 in place thereon.
  • a gasket 17 is provided under the base of member 14 whereby the Vmember 11 is clamped firmly in place and a water-tight joint formed.
  • a fuse contact clip or rece tacle 19 which is provided with a terminaI 20 extending outward through the wall 18.
  • the terminal 20 is provided with a head which engages the outside of wall 18 and has its inner end peened over to secure the contact clip in place.
  • the contact clip comprises a plurality of resili- 1924. Serial No. 735,059.
  • a helical spring 24 is provided in the contact clip 19. This sprin 1s compressed when the fuse is inserte and thus tends to force the fuse out.
  • the contact clip 25 for the opposite end of the fuse is carried on a cap or cover 26 which closes the member 11.
  • This cover comprises a block of insulating material 27, such as bakelite, which fits in abutting rela- ⁇ tion on the member 11 and is provided with a metallic cylindrical skirt 28 which ts over the'member 14 and is secured thereto by means of a bayonet joint consisting of suitably shaped slots 29 and 30 in the skirt with which cooperate projections 31 and 32 on the member 14.
  • the skirt may be secured to the insulating body 27 by bending its outer end 33 inward and embedding it in the insulating body when the body is molded.
  • a recess 35 In the inner end of the insulating body is a recess 35 in which the contact clip 25 is secured, for example, by riveting or other-Y" wise securing it to a metallic body 36 which is embedded in the insulation.
  • the contact clip 25 is similar in form to contact clip 19. Electrically connected to the clip 25 at its base are four spaced contact arms 37. These contact arms are longer than the contact projections of the ⁇ clip 25 and extend into the member 11 for a short distance into en gagement with a contact ring 38 of suitable electric conducting material which is seated on an insulating ring 38 in the outer end of member 11, t e sunk to receive the ring 38.
  • This contact ring is secured in place by means of two or more insulated rods 39 and 40 of electrical conducting material which extend.
  • the cover 26 is removed and one end of the fuse inserted in clip 25.
  • the contact arms of the clip exert Suiiicient pressure to hold the use so that it may be inserted into the enclosing portion of the holder formed by member ll by grasping the cover, the cover being put in place at the same time.
  • the cover is then turned slightly to lock it.
  • the cover is provided with a iiattened projection 43 forming a nger hold to i'acilitate its aplication and removal.
  • the removal of the use is facilitated bythe spring 24 which tends to expel the fuse from clip 19T so that the :fuse remains in the clip 25 and is removed with the cover.
  • the terminals 20 and 42 by means of which the fuse -is connected in the electric circuit to be protected will be behind the panel board l0.
  • the exposed portion of the fuse holder on the opposite side of the panel, board is closed whereby the fuse and contact parts are protected. It will be observed thatthe fuse while completely enclosed is at the same time readily accessible so that itmay be easily and quickly inserted and removed.
  • a use holder comprising an insulating body providing a chamber for the fuse, electric terminals on said body, a contact receptacle in said chamber connected to one of said terminals, a contact ring secured in the outer end of said chamber connected to the ⁇ other terminal, a cover fitting on said bod)T so as to close said chamber, a contact recep said receptacle, a pair of contact clips se- 05 ried by said cover, said contact arms bein arranged to engage said ring when sai cover is placed on said receptacle, and means for securing said cover on said receptacle whereby said fuse isheld in said clips.
  • a fuse holder comprising an elongated recept-acle for the fuse, a cover for said receptacle, a pair of contact clips secured to the bottom of said receptacle and said cover respectively, a ring of conducting material secured in the outer end of said receptacle a pair of terminals secured exteriorly to t e bottom of said receptacle, electrical connections between one ot' said terminals and the contact clip on the bottom of said receptacle, electrical connections between the other of said terminals and said ring, a resilient contact arm secured to said cover in electrically conducting relation to the contact slip carried by said cover, said contact arm bein arranged to engage said ring when sai cover is placed on said receptacle, and a bayonet joint between said cover and said receptacle whereby said cover can be secured by turning it after it has been placed on said receptacle.
  • a fuse holder comprising an elongated receptacle for the fuse, means .for securing said receptacle centrally in an aperture in a supporting body so that its closed and open ends project from opposite sides of said supporting body, a cover fitting on said receptacle, a pair of fuse clips in said receptacle secured respectively to the closed end and cover of said receptacle, a pair of electrical.
  • terminals secured exteriorly on the closed end of said receptacle, electrical connections between one of said terminals and the fuse clip on the closed end of said receptacle, a contact ring secured in the outer end of said receptacle, electrical connections between the other terminal and said ring and a .resilientcontact arm secured to said cover in electrical conducting relation tothe contact clip carried by said cover, said contact arm being arranged to engage said ring when said cover is put in place.

Description

Oct. 5 1926.
C. T. HENTSCHEL FUSE HOLDER Filed July 9. 1924 inventor: Charla-ST. Hentschel,
His Attohrw ey.
Patented Oct. 5, v1926.
UNITED YSTATES l 1,602,221 Parietti-'r` OFFICE.
CHARLES T. HENTSCHEL, OF SCHENECTADY, NEW YORK, ASSIGNOR TO GENERAL l' ELECTRIC COMPANY, A CORPORATION OF NEW YORK.
FUSE HOLDER.
Application led July 9,
My invention relates to fuse holders and has for its object the provision of a fuse holder embodying a closed protective casing for the fuse and' contact parts such that the fuse may be easily and quickly inserted and removed.
My invention has particular application in installations in which it is desired for urposes of accessibility to mount the fuse 1n an exposed position, such as on the front of a switchboard. In carrying out my invention I mount the fuse 1n a casing pro# vided with a quickly detachable cover, the contact clips for the fuse being secured to the casing and cove-r respectively and bein so arranged that the fuse may be inserte and removed with the cover.
For a more complete understanding of my invention, reference should be had to thel accompanying drawing in which Fig. 1 is a side elevation view of a fuse holder embodying my invention; while Fig. 2 is a sectional view taken along the line 2-2 of Fig. 1 looking in the direction of the arrows.
Referring to Figs. 1 and 2 of the drawing, I have shown my invention in one form as being mounted on a suitable support 10 which may be a switchboard panel. The fuse holder comprises a hollow cylindrical receptacle member or body 11 made of a suitable insulating material, such as a bakelized compound. One end of the body 11 is closed'; as shown, the left-hand end is closed. The
member 11 is mounted in an aperture 12 ins the support 10 and is provided with a fiange 13 which is seated on the support. It is held in place on the support by means of a. tubular member 14 which is slipped over the open end of member'll onto the flange 13 and is provided with a flanged base 15 through which screws 16 extend into the support 10 to hold the member 14 in place thereon. Preferably a gasket 17 is provided under the base of member 14 whereby the Vmember 11 is clamped firmly in place and a water-tight joint formed.
Mounted on the bottom or end wall 18 of the member 11 .is a fuse contact clip or rece tacle 19 which is provided with a terminaI 20 extending outward through the wall 18. As shown, the terminal 20 is provided with a head which engages the outside of wall 18 and has its inner end peened over to secure the contact clip in place. .The contact clip comprises a plurality of resili- 1924. Serial No. 735,059.
inward against the fuse. A helical spring 24 is provided in the contact clip 19. This sprin 1s compressed when the fuse is inserte and thus tends to force the fuse out.
The contact clip 25 for the opposite end of the fuse is carried on a cap or cover 26 which closes the member 11. This cover comprises a block of insulating material 27, such as bakelite, which fits in abutting rela- `tion on the member 11 and is provided with a metallic cylindrical skirt 28 which ts over the'member 14 and is secured thereto by means of a bayonet joint consisting of suitably shaped slots 29 and 30 in the skirt with which cooperate projections 31 and 32 on the member 14. The skirt may be secured to the insulating body 27 by bending its outer end 33 inward and embedding it in the insulating body when the body is molded. In the inner end of the insulating body is a recess 35 in which the contact clip 25 is secured, for example, by riveting or other-Y" wise securing it to a metallic body 36 which is embedded in the insulation. The contact clip 25 is similar in form to contact clip 19. Electrically connected to the clip 25 at its base are four spaced contact arms 37. These contact arms are longer than the contact projections of the` clip 25 and extend into the member 11 for a short distance into en gagement with a contact ring 38 of suitable electric conducting material which is seated on an insulating ring 38 in the outer end of member 11, t e sunk to receive the ring 38. This contact ring is secured in place by means of two or more insulated rods 39 and 40 of electrical conducting material which extend. lengthwise of member 11 through insulatin tubes 39a and 40 lying in grooves provi ed for' member 11 being counterthem in member 11 and through the end -cover and the cover put in place, as shown in Fig. 2, a circuit is closed from terminal 20 through the fuse, contact arms'37, contact ring 88, and the rods 39 and 40 to the terminal 42.
In inserting a fuse, the cover 26 is removed and one end of the fuse inserted in clip 25. The contact arms of the clip exert Suiiicient pressure to hold the use so that it may be inserted into the enclosing portion of the holder formed by member ll by grasping the cover, the cover being put in place at the same time. The cover is then turned slightly to lock it. Preferably the cover is provided with a iiattened projection 43 forming a nger hold to i'acilitate its aplication and removal. The removal of the use is facilitated bythe spring 24 which tends to expel the fuse from clip 19T so that the :fuse remains in the clip 25 and is removed with the cover.
In the application of my invention it is contemplated that the terminals 20 and 42 by means of which the fuse -is connected in the electric circuit to be protected will be behind the panel board l0. The exposed portion of the fuse holder on the opposite side of the panel, board is closed whereby the fuse and contact parts are protected. It will be observed thatthe fuse while completely enclosed is at the same time readily accessible so that itmay be easily and quickly inserted and removed.
While I have described my invention as embodied in concrete form and as operating in a specific manner in accordance with the provisions of the patent statutes, it should be understood that^I do not limit my invention thereto, since various modifications thereof will suggest themselves to those skilled in the art without departing from the spiriti of my invention, the scope of which is set forth in the annexed claims.
What I claim as new and desire to secure by Letters Patent of the United States is 1. A use holder comprising an insulating body providing a chamber for the fuse, electric terminals on said body, a contact receptacle in said chamber connected to one of said terminals, a contact ring secured in the outer end of said chamber connected to the `other terminal, a cover fitting on said bod)T so as to close said chamber, a contact recep said receptacle, a pair of contact clips se- 05 ried by said cover, said contact arms bein arranged to engage said ring when sai cover is placed on said receptacle, and means for securing said cover on said receptacle whereby said fuse isheld in said clips.
3. A fuse holder comprising an elongated recept-acle for the fuse, a cover for said receptacle, a pair of contact clips secured to the bottom of said receptacle and said cover respectively, a ring of conducting material secured in the outer end of said receptacle a pair of terminals secured exteriorly to t e bottom of said receptacle, electrical connections between one ot' said terminals and the contact clip on the bottom of said receptacle, electrical connections between the other of said terminals and said ring, a resilient contact arm secured to said cover in electrically conducting relation to the contact slip carried by said cover, said contact arm bein arranged to engage said ring when sai cover is placed on said receptacle, and a bayonet joint between said cover and said receptacle whereby said cover can be secured by turning it after it has been placed on said receptacle.
4. A fuse holder comprising an elongated receptacle for the fuse, means .for securing said receptacle centrally in an aperture in a supporting body so that its closed and open ends project from opposite sides of said supporting body, a cover fitting on said receptacle, a pair of fuse clips in said receptacle secured respectively to the closed end and cover of said receptacle, a pair of electrical. terminals secured exteriorly on the closed end of said receptacle, electrical connections between one of said terminals and the fuse clip on the closed end of said receptacle, a contact ring secured in the outer end of said receptacle, electrical connections between the other terminal and said ring and a .resilientcontact arm secured to said cover in electrical conducting relation tothe contact clip carried by said cover, said contact arm being arranged to engage said ring when said cover is put in place. y,
In witness whereof, I have hereunto set my hand this 8th day of Jul 1924.
CHARLES T. H NTSCHEL.
US725059A 1924-07-09 1924-07-09 Fuse holder Expired - Lifetime US1602227A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448389A (en) * 1945-06-02 1948-08-31 Gen Electric Fuse unit
US2638520A (en) * 1949-12-24 1953-05-12 Hugh H Eby Inc Electric fuse holder
US2740017A (en) * 1953-11-10 1956-03-27 Wire Assemblies Corp Electrical fuse holder assembly
US2851558A (en) * 1954-07-15 1958-09-09 William C Linton Fuse holder
US2914638A (en) * 1956-05-23 1959-11-24 Georg Schade K G Fuse mounting assembly for cartridge and automatic fuses
US2958750A (en) * 1957-03-25 1960-11-01 Mc Graw Edison Co Protectors for electric circuits
US3238334A (en) * 1962-10-01 1966-03-01 Rowan Controller Company Illuminated push button circuit breaker
US3286061A (en) * 1965-02-15 1966-11-15 Superior Electric Co Fuse, switch and pilot light unitary device
FR2485286A1 (en) * 1980-05-06 1981-12-24 Roudeau Maurice CUT-OFF CONNECTION MODULE AND PROTECTION FOR SINGLE OR MULTIPLE ELECTRIC CIRCUIT
US4762510A (en) * 1986-11-12 1988-08-09 Littelfuse, Inc. Shockproof fuseholder

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448389A (en) * 1945-06-02 1948-08-31 Gen Electric Fuse unit
US2638520A (en) * 1949-12-24 1953-05-12 Hugh H Eby Inc Electric fuse holder
US2740017A (en) * 1953-11-10 1956-03-27 Wire Assemblies Corp Electrical fuse holder assembly
US2851558A (en) * 1954-07-15 1958-09-09 William C Linton Fuse holder
US2914638A (en) * 1956-05-23 1959-11-24 Georg Schade K G Fuse mounting assembly for cartridge and automatic fuses
US2958750A (en) * 1957-03-25 1960-11-01 Mc Graw Edison Co Protectors for electric circuits
US3238334A (en) * 1962-10-01 1966-03-01 Rowan Controller Company Illuminated push button circuit breaker
US3286061A (en) * 1965-02-15 1966-11-15 Superior Electric Co Fuse, switch and pilot light unitary device
FR2485286A1 (en) * 1980-05-06 1981-12-24 Roudeau Maurice CUT-OFF CONNECTION MODULE AND PROTECTION FOR SINGLE OR MULTIPLE ELECTRIC CIRCUIT
US4762510A (en) * 1986-11-12 1988-08-09 Littelfuse, Inc. Shockproof fuseholder
US4762509A (en) * 1986-11-12 1988-08-09 Littelfuse, Inc. Shock-safe fuseholder assembly

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