US819505A - Electric release for target-traps. - Google Patents

Description

' No. 819,505- PATEN'I'ED MAY I, 1906.

J. R. BIRCH. ELECTRIC RELEASE IOR TARGET TRAPS.

APPLICATION FILED AUG. 28, 1905.

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uniIID STATES PATENT oFFIon.

JOSEPH R. BIRCH, or Sr. LOUIS, MISSOURI. i ELECTRIC RELEASE Eon TAfneET-TRAPS.

Specification of Letters Patent.

Application filed August 28, 1905. Serial No. 276,078.

- lease for target-traps; and the object of my invention is to provide means that may be readily attached to target-traps whereby the throw-arm, that is operated by a stiff coilspring, is instantly and positively released after it has been set in throwing position and provided with a target.

My Invention consists in a housing that is secured to the frame of the target-trap, an electromagnet arranged in said housing, an armature above said magnet, and a hook in the upper portion of said housing for engaging the throw-arm and which hook is released by a downward movement of the armature.

My invention further consists in certain novel features of construction and arrangement of parts, which will be hereinafter more fully set forth, pointed out in my claim, and illustrated in the accompanying drawings, in which- Figure 1 is a perspective view of a portion of a target-trap with my improved release engaging the throw-arm thereof. Fig. 2 is an enlarged transverse section taken approximately on the line 2 2 of Fig. 1. Fig. 3 is an enlarged transverse section taken through the casing of the release. Fig. 4 is a vertical section taken on the line 4 4 of Fig. 3.

Referring by numerals to the accompanying drawings, 1 indicates the base of the target-trap, 2 the fixed arm, and 3 the throwarm.

4 indicates a housing approximately rectangular and provided at its top with a laterallyprojecting plate 5, that engages over the fixe arm 2 of the trap near the outer end thereof. A screw .5a passes through this plate and rigidly secures the housing to the arm 2.

an electromagnet in the form of a pair of coils 5b, and arranged above the cores of said` coils is an armature 6, the same being pivoted at one end, as indicated by 7, and a small expansive coil-spring 8 normally holds said armature out of contact with the cores of the magnet-coils' 6. Formed inthe top of the.

armature 6 is a notch 9. Arranged to swing I upon a .pin 10, located in the top of thehous- Ing 4, is a vertically-arranged lever 11, the

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lower end of which is. adapted to engageln the notch 9 of the armature 6. This lever projects a short distance above the top of the housing v4 through anv opening therein, and formed integral with the upper portion 'of said lever is a laterally-projecting arm 12,-

that is provided with a hook 13 on its outer end. The top of this arm 12 lies in the same plane with the top of the housing 4 and is of such a length as that the throw-arm 3 will fall between the upper end of the lever 1 1 and the hook 13. When the throw-arm is swung around into throwing position, it rests directly on top of the arm 12, being held by the hook 13, and the lower end of the lever 11 is engaged in the notch 9. A leaf-spring 14 is secured to the inside of the housing 4, its free end engaging against the lever 1 1 immediately beneath the pivot-pin 1 0, and the normal tendency of said spring is to rock the lever upon said pin 10, so as to move the hook13 downwardly below the path of travel of the throwarm 3. battery 16 to one of the coils 5b, and-a wire 17 leads from the opposite side of the battery to the opposite coil 5b, and there is a circuitcloser 18, preferably in the form of a pushbutton, located in this last-mentioned wire.

The operation of my improved release is as follows: When the circuit is open, the expansive coil-spring 8 holds the armature 6 elevated away from the cores ofthe coils 5b, and when the throw-arm 3 is swung around into a throwing position it is engaged by the hook 13 and the lower end of the lever 11 is engaged in the notch 9 of the armature 6. When it is desired to release the throw-arm to throw the target carried thereby, the operator closes the circuit by operating the pushbutton 18, and in so doing the electromagnet is energized, pulling the armature 6 downwardly, and thus releasing the lower end of the lever 10. The pull of the throw-arm exercised against the hook 13 now causes the arm 12 and lever 11 to swing upon the pin 10, Arranged in the bottom of the housing 4 is and thus said throw-arm is released. The end of the armature 6 is projected through the opening in one side of the housing 4 in order that the Vrelease Inay be mechanically operated by the operator, who positions the Atargets in the carrier of the trap if for any One end of a wire 15 leads from a IOO IOS

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the switch 18.

A device so construetedis simple, inexpensive, very ositive in action, is readily set to holdkthet Aovv-arm, and instantly. releasing the same.

I claimv The combination with a target-trap, of a the side of which housing is formed an .aper ture, a vertical arm pivotally mounted in the housing with its upper endproj acting through an opening in the top ofsaidl housing, a' laterally-projecting arm integral with the verti-` cal arm, a lug integral with' the outer end'o` the lateral arm,which lug proj ects 4through the subscribing witnesses.

'opening in the top of the housing, magnetcoils Alocated within the housing, means whereby said coils are energized, and an armaturearnangedabove.said coils, in the top side of which armature is formed a notch tok receive the lower end 'of the vertically-arranged arm when in a normal position, and

'the lv"free end of the armature projecting l s through the opening in the side of the houshousing secured'to' the 'frame' of the trap in' i ing; substantially as specified.

n testimony whereof I khave signed my name tothis specification in presence of two JOSEPH 'Ba-BIRCH. Witnesses P. ``-Siwrrn, E. M. v HARRINGTON.

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