US937673A

US937673A - Submarine mine.

Info

Publication number: US937673A
Application number: US50519209A
Authority: US
Inventors: Albert P Broomell
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-06-30
Filing date: 1909-06-30
Publication date: 1909-10-19
Anticipated expiration: 1926-10-19

Description

sUBMAR-n MINE. APPLIUA'L'ION I" in) JUNE 30|199 Patented 0ct.19, 1909.

w/r/vEssES /Nl/ENTUR a? /ZBERW f? HRM/WELL @7 j JWM I By AToH/vfrs A. P. BROOMBLL.

SUBMARINE MINE.

APPLIoATIoN FILED JUNE 30,1909.

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C L llmlmll A. P. BROOMBLL.

SUBMARINE MINE.

PPLIGATION Hum JUNE 90,1909.

937,673. Patented 009191909.

3 SHEETS-SHEET 3.'

4-0 1 broken away, ofthe lower section of the aib ALBERT P. BROOlVIELL, OF YORK, PENNSYLVANIA.

SUBIVIARINE MINE.

Specification of Letters Patent.

Patenten oct. 1o, iooo.

Application tiled. .Tune 30, 1909. Serial No. 505,192.

To alt whom 'it 'may concern:

Be it known that I, ALBERT I). BnooMnLL, a citizen ot' the United States, and a resident of York, in the county of York and State of Pennsylvania, have made certain new and useful Improvements in Submarine Mines, of which the following is a specification.

marine mines and particularly in the anchoring device therefor, and the invention relates especially to that class of mines in which a mine is connected by a line with an anchor provided with means for paying out the line and with means ttor checking the paying out of the line so that when the mine and attached anchor are thrown overboard the mine will iloat as the anchor descends toward the bottom, and as the anchor approaches the bottom it will Operate to di'aw the mine below the surface to an extent proport-ioned to the length of a gage line connected with the anchor; and the invention consists in certain novel constructions and combinations ot parts as will be hereinafter described and claimed.

In the drawings Figure l is a side view of the min anchor, and gage line in the posi* tion the parts assume as the anchor descends through the water before the gage line with its attached weight reaches the bottoni. Fig. 2 is a similar view of the parts after the gage line has touched the bottom and before the anchor has reached the bottom, the anchor and the mine occupying the position they assume as they descend through the water, the mine being pulled down by the anchor. Fig. 3 is a similar view showing the anchor and the mine, with the latter in its ultimate position. Fig. 4t is a top plan view, partly eher. Fig. 5 is a vertical longitudinal section ot the anchor drawn alongside the reel shaft. Fig. 6 is a top plan view of the upper section of the anchor, and Fig. 7 is a vertical section of the anchor on about line 7-7 of Fig. 5.

As be'lj'tn'e suggested, the present invention relates to mine anchors used in connection with buoyant mines in which the anchor is provided with a reel which is connected'by a cable with the buoyant mine, and a detent mechanism is provided for stopping the operation oli the reel as the anchor approaches F the bottom, such detent being restrained by a weight on a gage line so that when the gage line weight strikes the bottoni, the paWl stopping the paying out of the cable between the reel and the mine so that the downward 5 movement of the anchor subsequent to the E stoppage of the reel will pull the buoyant 'lhis invention is an improvement in submine below the surface to an extent proportioned to the length of the gage line connecting the weight with the detent.. The presentinvention includes certain improvements in the inea-ns for supporting and operating the detent pawl in order to prevent the breakage thereolf' by a blow or shock occasioned by the stopping of the reel, also to secure the boxes for the reel shaft between the upper and lower sections ol' the anchor in such manner as to avoid the necessity of fastening bolts l'or said boxes by securing the boxes by the bolts which connect the anchor sections together; also certain improvements in the construction of the ree-l whereby the same is built up, so parts may be renewed in case or breakage without much trouble or loss ot time, and further to provide certain improvements in the construction of the anchor proper, all ot' which will be described.

'lhe inine A is a buoyantinine and is connected by a cable B, with a reel C carried by the anchor D, and a detent E carried by the anchor has connected with it a gage line F, which connects it with the ballgG. 'lhe mine A may be of any suitable construction and the line or cable B may be ot any su1table construction which may be freely wound upon the reel C.

The anchor proper includes an upper section D and a lower section D2, which are bolted together at D and upon thc boxes II for the reel shaft. rlhe lower section D2 is provided in its opposite sides near its lower end with recesses DAk and Di", the latter being crossed by the handle D, and the base wall D7 ot' the recess D4 being perforated 4for the passage of the pivot bolt I of the detent pawl E, which detent pawl 1s pivoted on the bolt. I, and seats at its lower end in a recess la" formed in a block Ff cast upon the base oit the anchor, the said recess E and the lower end of the pawl E being rounded to forni a broad base for the said pawl in the different posi tions thereof. At its upper end the pawl with a. lateral arm IC, to which is coniuwtcd the gage line F whose weight acts to hold the pawl away freni the ratchet in the position of parts shown in Fig. 1, and a spring K also connects at one end with said arni D", and at its other end with a hook K and operates to throw the pawl into ei'igageinent the bottom and the strain thereof on the pawl E is released. The hook K is threaded into a block Y2 east at the inner side of the upper section D of the anchor. By the described construction the pawl E is constantly under tension. This tension in the position of parts shown in Fig. l is a dual one, the spring K tending to pull the pawl into engagement with the ratchet, while the weight of the gage line F resists the action of the spring K and holds the pawl out of engagement with the ratchet so the reel inay freely revolve to pay oil' the line connecting it with the buoyant inine. W hen the weight Gr rests on the bottom and the pawl is relieved of the gravity of said weight, the spring instantly jerks the pawl into engage nient with the ratchet J. At such tiine, if the pawl be supported in any ordinary inanner, there is a tendency to break the pawl or tear it away from its fastenings by the blow or shock occasioned by the stopping o f the reel and the instantaneous transmission to the said pawl of the weight of the anchor and the buoyancy ot' the float which is pulled down by the anchor when the reel 1s stopped. I avoid this ditiiculty by sup` porting the lower end of the pawl in the recess or pocket E, which latter' is chilled in the operation o'li casting and e'lliciently sustains the shock and blow relieving the bolt from all such st aiii. As shown, the pawl is pivoted diainetrieally below the axis of the reel and the pawl and ratchet are so constructed and related to the pivoted pawl that the strain on the pawl is an eiidwise one, or in the direction of length of the pawl as best shown in Fig. 7 of the drawings. In practice the pawl is inade from a high quality of steel casting or steel forging and its lower end which tits in the chill pocket E', is ina chine finished. The pivot bolt I is a bronze bolt and is purposely made a loose tit where 1t passes through the pawl.

The reel shaft has its trunnions it and 2 journaled in the boxes I-I and H', which latter niay be babbitted as shown, and are provided at their lower edges with the lateral ribs H2. These boxes tit into notches L foi-ined in the upper edges of the lower section D2 of the anchor at the Sides thereof, and said notches are provided at their lower ends with lateral wings Ii receiving the lateral ribs of the boxes II, the boxes Il. being slipped longitudinally into the seats formed by the notches L as will be understood from Fig. 7 of the drawings. The boxes extend at I-I3 above the upper edge of the lower section l`)` o'l5 the anchor, and l'orin at li" upwardly facing shoulders which are overlapped by the side plates ot the upper section D ol' the anchor as liest shown in Fig. 5, lo prevent any outward displacement ot the boxes when the anchor sections` are connected as will be understood :troni Figs. 5 and 7 of the drawings. By this construction when the parts are applied as shown in Figs. 5 and 7, the reel trnnnions will he securely held in the boxes and the boxes will be secured in place by the construction of the anchor proper as shown and betorc described. Vv'lieii the boxes are fitted to the lower section of the anchor as shown in Figs. 5 and 7, care. should he taken to have the joint at the upper side of the lateral flanges Il2 a close lit, and it there is any play up and down between the boxing and the casting, the box niay be wedged up until the joint at the upper side of the 'lianges Il is tight. While in this position the upper side of the lower section Dt' is faced olf, and at the saine tiiiie the upper edges of the boxes are 'faced oitl;l between the shoulders I1* and the upper ends of the boxes which insures the upper edges ol" the. boxes being bevel. with the corresponding edge of the section D2, and also insures a close joint. between the upper and lower sections of the ant'fhor. Then the anchor is descending toward the bottoni ot the sea with the pawl held in its disei'igaged position by the lead weight on the gage line, the reel will revolve rapidly and when thel weight strikes the bottoni and slacks the distance or gage line l". the spring K will pull the pawl into the position shown in Fig. 7, and suddenly stop the revolution ot' the reel or drinn. Then the reel stops revolving, the inine, which has up to this tiine been l'loating on the water. and weighs several hundred pounds, is suddenly jerked under the water making a sudden and severe upward pull o n the reel with a tendency to tear the reel. and its shaft out of its bearings: 'l'hc construction as shown, provides all the weight of the anclioi' to take. up the shock occasioned by the lifting it'orce o'l the rope ou the reel` and the upper halt' or section ot' the anchor is bolted onto 'the lower section and the. boxes are l'itted into undercut recesses in the anchor providing a hook-under box which is siinple, strong and efliciently prevents any disarrangeinent ot| the parts.

In constructing the reel I provide a shaft having a central squared portion C, with trunnions l and 2 at the ends thereotI to Iit in the boxes, and at the inner end ot' one trunnion I provide a shoulder 3 for abutinent by one end plate 4f, of the reel. The

body C2 of the reel forms a spacing block between the plates 4t and 5, as well as a druii'i on which to wind the rope B, and the ratchet J is fitted on the squared portion of the shaft up against the plate 5, and is held by a pin (S passing through the shaft as `shown. By this construction, the reel may be readily taken apart in order to renew any portion thereof that may become worn. or broken. Where desired a pin such as G, may be used instead of the shoulder 3.

As best shown in Fig. 5, the sections D and D2 are provided with inner alined fianges M and N which lap along the inner faces of the end plates 4 and 5 of the reel and aid in pieventing any clogging or tangling of the rope as it passes from the reel as well as to strengthen and brace the sections D and D2 of the anchor.

I claiinl. In an apparatus substantially as described, an anchor composed of upper and lower sections secured together, the lower section being provided in its upper edges with notches provided with lateral wings, and the said section being also provided upon its bottom plate with a recess or pocket, a reel in the anchor and having a ratchet wheel, and also provided with a shaft having trunnions, boxes having bearings for said trunnions and fitting in the notches of the lower anchor section and having lateral ribs` operating in the wings of said notches, and outwardlyI facing shoulders at their upper sides opposing the inner faces of the sidewalls of the top anchor section, a detent pawl pivoted at its lower end and operating at such end in the pocket or recess of the bottom plate of the anchor, and means for operating said pawl all substantially as and for the purposes set forth.

2. The combination with an anchor, and a reel therein, of boxes forming journal bearings for said reel, and having undercut engagement with the anchoi'.

3. rlhe combination with an anchor having notches provided with lateral wings, of a rcel in the lanchor, and boxes forming journal bearings for the reel and fitted in the notches of the anchor, and having lateral ribs fitting the wings of said notches.

et. The combination of a reel, an anchor receiving the reel and having upper and lower sections, and means securing the same together, and boxes forming journal bearings for the reel and held between the sections of the anchor.

5. rlhe combination of a reel, an anchor having a lower section provided in its upper side with the opposite notches having undercut portions, the boxes forming journal bearings for the reel, and fitting in said notches and having portions fitting the undercut portions of the notches, and the upper anchor section secured to the lower section and overlying the box.

@The combination of a reel, boxes forming journal bearings therefor, and having at its upper sides outwardly facing shoulders,

and an anchor having a lower section notched for the reception of the boxes, and an upper section secured to the lower section and overlying the boxes and al'iutted. at their inner sides by the outwardly lfacing shouldersl of the boxes.

7. The combination of a reel, having end plates, and au anchor l.'..ce.iviug the rcel and composed of upper and lower sections secured together, said sections being provided at their inner sides with alined flanges fitting along the inner faces of the end plates of the reel.

S. The combination of ananchor having upper and lower sections, removable boxes held between the upper and lower sections of the anchor, and a reel having trunnions journaled in the said boxes.

9. The combination of a reel having a. ratchet wheel, an anchor within which the reel is ournaled, said anchor being provided with a recess or pocket opposite the reel ratchet and in line below the axis of the reel, a pawl arranged at one end to engage the teeth of the ratchet wheel and having its other end fitted to the pocket or recess, and bearing against the base wall thereof wheu the pawl is engaged with the ratchet wheel, said pawl being provided with a lateral arm, a spring acting upon said arm to press the pawl into engagement with the ratchet wheel, and a gage or distance line connected with the pawl and having a weight for operating the pawl in opposition to the spring.

10. A reel having a ratchet wheel, and an anchor in which said reel is journaled, and provided opposite the ratchet wheel with a recess or pocket, and a pawl movable into and out of engagement'. with the ratchet wheel, and seated at one end in and bearing at said end endwise against the base wall of the said pocket or recess.

11. The combination of a reel having a ratchet wheel, an anchor within which said reel is ournaled and provided below the axis of the reel with a recess or pocket, a pawl seated at one end in and bearing at said end endwise against the base wall of the recess or pocket and movable at its other end into and out of engagement with the ratchet wheel, and means for operating the pawl.

12. The combination of a reel havii'ig a shaft formed with a central angular portion, and with trunnions at the ends thereof, a body or druni portion fitting on the angular portion of the shaft, and plates fitted on the angular portion of the shaft at the ends of the body portion, a ratchet wheel fitted on the angular portion of the shaft against one of the end plates, removable boxes having journal bearings for the trunnions of the reel shaft, an anchor supporting said boxes, and a pawl carried by the anchor for engaging the ratchet wheel.

' 13. The combination of an anchor coniposed of upper and lower sections, boxes ltting removably between said sections and having journal bearings, a reel having a Sbali. provided with end trunnions journaled in said bearings and with an intermediate angular portion, a body or drum 'portion fitted on tbe angular portion ot' tbe sha-ft, and end plates, and a ratchet wheel also fitted on the angular portion of the shaft, a pawl engaging with said ratchet wheel, and means for operating the pawl.

14. In an anchor for submarine mines, the combination of a reel shaft, boxes carrying the saine, and an anchor having upper and lower sect-ions between wbieb tbe Said boxes 15 are held substantially as set .i'ortb.

15. The eon'xbination in submarine lnines of an anchor provided with a recess or pocket, a reel, and a pivoted pawl coperating with said reel and seated at its plvoted 20 end loosely in the recess or pocket whereby the blow on said pawl will be borne entirely by the anchor, substantially as set forth.

ALBERT l. BROOMELL.

Witnesses GEO. S. SCHMIDT, ANDREW J. Hnnsiinx'.