US854977A - Time-fuse. - Google Patents

Description

QBKKER. TIME FUSE.

APPLIOATION FILED MAR. 26, 1906.

- PATENTED MAY 28, 1907.

- ing shaft.

its free end f bent upwardly, while a spring -'1 Be it knowirthat L'CARL BAKER, a subject of Berlin, Germany, have invented certain.

CARL} BAKER, or en it nv, E MANY; assicxoii To FK-nan. KRUPP" 1 'AKTIENGESEhhSCHAFT, or ESSEX-QQI-fllilQ-RUI-Ilt,GERMANX.

' ,1] ;y hmsgmsei1" of the Emperor of Germany, anda resident new an duseful Improvements inTime-F uses, of which the following is a specification.

The present invention relates to timefuses with clock-work. timing mechanism, and particularly 'to fuses of this type, in which a spring carrying the firing pin is held under tension through the medium of a lock-- The object of the invention is to provide transport safety attachment, or device for securing the fuse against action during trans- )ortation, of simple and reliable construcion. v r

Primarily the invention consists in providing a clock-work or other motor time fuse witha safety device, exercising a dual control over the firing means, by providing independent connections through which it opposes the action of both the clock-work and the locking shaft, until the safety device is automatically withdrawn by'the act of firing.

In the accompanying drawing, in which the invention is shown, by way of example, as applied to the fuse forming the subject matter of U. S. Letters Patent 728,151, granted May 12, 1903, to Carl Baker, Figure l is a vertical section through the secured fuse; Fig. 2 is a top view of the fuse mechanism; Fig. 3 is a section on line 33, Fig. 1, seen from above, and Fig. 4 is a part of the fuse with withdrawn securing device.

The total construction, and mode of operation of the fuse is known and will, therefore be but briefly referred to as follows: The spindle A- of the clock-work, whose driving mechanism (not shown) is arranged in the casing B, is engaged by a spiral spring C (Fig. l), which, when under tension, tends to turn the spindle A in the direction of the arrow m (Fig. 3). The locking shaft D provided with a shoulder (Z, holds-the firing spring E under tension until the tune for ignition has arrived when it releases said spring E with its firing pin 6, to ignite the fuse. A locking lever F, which is arranged on the shaft D, has

(Fig. 2) tends to turn the lever F and the shaft D in the-direction of the arrow 1 (Fig.

i Specification of Letters Patent. 7 i v Applieation'iiled arch 26,1906; Serial No. 308,165.

3), to bring the shaft D in the position in ra sed my 25 199 which the shoulder (if releases the j firing spring E. Spindle A carries a lockingdisk G (Figs. 1' and-2), adjustable through the medium of thecapH (Fig; 1) andisprovided with a notch {1' adapted to receive the endf of the locking lever.

A bolt; ;\l is mounted int-he plates J K of the ClOCli-WOlk, through the medium of trunnions 111. m in suclra manner that when a projectile is fired, the bolt will more under its own inertia from the position shown in Figs. 1 and 3 to the position shown in Fig. 4, while a bifurcated spring X having arms 'nn (Fig. 3), embraces the tapered neck m of said bolt M, when the latter is in the position shown in Figs. 1 and 3. This bolt is brought into independent opposing relation to both the clock-work and the locking shaft, by the following means: In the last mentioned position of the bolt, the head is situated in the path of travel of two arms (1 and d" one of which ((4') is rigidly connected to the spindle (Fi s. 1 to 3 I the s )rin 's and Bare under tension and the arms a and (F lie against the head m of the bolt M so that the bolt and the arms a, (P, both prevent the starting oi the clock-workand the turning of locking shaft D that 1s necessary to release the liring spring E. 'If the locking shaft were not secured against turning in the direction of the arrow 1 such turning might for instance take place when, upon adjusting the time of ignition, the notch g in the locking disk G were moved into the path of travel of'the endf, of the locking lever. Vhen the projectile is iired, the head m, of the bolt .M forces the arm n and 2/ of the spring N apart and the bolt moves into position shown in Fig. 4. in which the securing device is withdrawn. 'lhe clock-work starts ainlcarries alongwith it the locking disk G through the medium of the-spindle \Vhen the adjusted time of ignition has expired, theendj" of the locking lever passes through the notch g in-lhe locking disk thereby releasing the firing spring la.

20 spectively .Having thu's lescribed invention,what iwork and by the locking shaft and engaged Icl'aim and desire to secure y Letters Patent by said bolt until the latter is moved out'of 1s a timing mechanism controlling the same, a transport safety device independently op posing the action of both sald means and said mechanism and mounted to'fmove longitud inall'y of .the fuse out of opposing relation gosuch parts by its own inertia at time of rin 2.1n a clock-work time-fuse having a locking-shaft rotating to.release a firing device and revented from completing its rotation by t ecloc'k-work; atransport safety attachment controlling both the movement of the cloc'kwork and the rotation of the locking-shaft, consisting of a bolt movable lon' gitudinally of the fuse, and' arms carried reby. a rotary part of the clock- 1. In a time fuse having a firing means and the paths of the arms at the time of firing.

3. In a transport safety attachment for clock-Work time fuses, the combination of a locking shaft holding the igniting spring un- 5 der tension, and rotating to release vsaid spring, and a securing device M, movable longitudinally of the fuse, under its own inertia, at time oifiring, which, while in its securing position independently opposesboth the starting of the clock-work and the rotation of-the locking shaft.

The foregoing specification signed at Berlin, this twenty-sixth day of February, 1906. CARL BAKER.

In presence of I'IENRY I'IASPER, VVOLDEMAR I'IAUPT.

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