US1789214A - Miner's combination tamp and needle - Google Patents

Description

W a L'.' farao/1.

Jan. 13, 1931. w. o. c. -cARsoN MINERS COMBINATION TAMP AND NEEDLE Filed March 20, 1930 Patented Jan. 13, 19731 Y l sTarEs PATENT OFFICE WILLIAM o. c. cARsoN, on FREEMAN, WEST VIRGINIA MINnRs COMBINATION TAMP AND NEEDLE.

Application mea March 2o, 1930. serial No. 437,500. y,

This invention relates to a combination boresv of the tube 10 and head 11 isa needle tamping bar and needle for use in connection 15, preferably of copper, pointed at itslower with shooting coal in the mining thereof. end as shown and having its upper .end

It is aimed to provide a novel combination square or polygonal in cross section as at 16.

5 of parts which will enable a more rapid and A handle 17 is used when the needle 15 is 55 safer method of preparingand filling the operated independently of the tamping head holes with explosives. and sleeve as will be later described. Screw A particular object is to provide a conthreaded or otherwise attached tothe handle struction wherein the needle and tarnping 17 at 18 is a shank 19 which has a socket inembar are capable of individual as well as joint ber 20 at its lower `end detachably engaging 60 use, wherein a novel tamping head is used, the squared portion 16 and being interiorly wherein such relative movements of the Square S0 21S to intimately fit the salue. In parts in connection with the hole as will pro- Order to secure the handle deteehehly t0 the duce spark by friction is avoided, and whereneedle, aleteh 2l iS employed, the Same for Y l5 in a novel handle is used in connection with instance being made from a Single Strand 0f 65 the needle when operated independently of Wire With e 1301131017122 PVOted II all Opening the tamping bar. 1n the shank 19 and an end 23 upset to pre- Various additional objects and advantages Vent eeedental fleteehment- The other end 1 will become apparent from a consideration 0f JChe lLCll 21 S fOIlled 1 111303 111g 24: Which 20 of the description following taken in connecdetilehahly engages Vopenings 25 and 26 in 70 tion with accompanying drawings illustratthe portlen `16 and Socket 201espeetively. ing an operative embodiment. ln the use of the device with a hole such In said drawings as 27 suitably drilled in the coal, the needle Figure l is a View in, elevation, partly 15 alone 1S arranged Centrally 0f the hole broken away, illustrating all of the parts asand pellets 28 0f .eXPlSlVeS are .threaded 75 sembled, onto the needle and fall to the bottom of the Figure 2 is a view showing the parts in hole, or in lieuvofthe pellets, loose powder operative relation for tamping a charge, the or explosive may be applied '60 thehOle With latter also being shown, care used to assure Vcentral location of the Figure 3 is a view showing the needle alone needle. After the explosive is applied, cla-y in side elevation, and in connection with the 0r sludge `as at 29. is arranged in the hole charge and having the handle in place, thereov'e'r and thereupon'the sleeve 10 and Figure 4 is a detail sectional view taken on head 11 with the handle 17 and connected the line 4-4 of Figure 1, and parts removed, are slid onto the needle 15 Figure 5 is a detail sectional view taken on as shown in Figure 2. Thereupon the 35 the line 5-5 of Figure 3. sleeve 10 is reciproeatedA and if desired Referring specifically to the drawings, 10 turned at times so as to tightly compress designates the tube or sleeve of any suitable the charge 28 Within the hole. After the metal which detachably carries at its lower charge is thus compressed, the sleeve 10 40 end, a tamping head 11, the latter preferably and head 11 are removed and the handle 17 9o being of copper and having a socket 12 in the is rigidly but detachably connected to the upper end in which the lower end of the needle. The handle could not be in place sleeve 10 is detachably screw threaded, a during the taniping operation because sui lock nut 13 preferably being threaded on the cient movement Jfor the sleeveV could not take sleeve and abutting the head. It will be place. vWith the handle secured to the nee- 95 noted that the head is substantially conical dle, the latter may be turned and reciprowith its base lowermost. Further, the head cated in order to remove the needle and 1s provided with a suitable number of transprovide the central hole in the explosive. verse openings 14. Y Through the use of the invention, it will i Slidably and snugly extending through be realized that the sleeve and head are 100 guided by the needle in such manner that the sleeve Will not strike the coal during reciprocation and the various parts of the device Will not so strike each other as to produce spark by friction or otherwise accidentally lire the charge. The particular shape of the head l1 aids toward this end .since the sleeve is much smaller indiameter than `the hole. commodate loose or falling coal which Will gradually Work out of the same and belovvY the same so as to betamped` into place; Since the device holdsthe tamping ba'rin the center of the hole there will; be no ravelling of holes which ravelling is a serious objection in present methods. The in-r vention also overcomes Vsquibbing and its consequent danger.

Various changes may bevresorted to provided they fall Within the spirit and scope of -the invention. Y y l claimV as'my invention 'f l. A device of the class described` com prising a needle,V and a'tamping member slidably mountedV thereon and removable therefrom, anda -handle detachably applicable to said needle; v

2. A' devicefor" the'class described coniprisf ing a needle, a-*handle applicable thereto, a vlatch pivote'd to one of said parts and both parts having openingsadapted to register for engagement byY thelatch. Y l 3. A device of vthe class described having a Jcamping head, said head being substantial'- ly conical,and said'head having a transverse opening therethrough vfor the purpose speci' e y e. y

4. A device of the class described having aY tamping head, said headhaving a'transverse opening therethrough for the purpose specie a5. VA. device of the'class describedhaving a tamping head, a sleeve servingas ahandle therefor, said head having a socket',l said sleeve being detachably, screvv threaded in said socket, said headrbeing-f substantially conical, and a needle'along Vvwhich the head and sleeve are'slidable. 'f

' In testimony whereof I'aiiix my signature.

Vv,vvrLLiAivt o. c. cAnsoN.

ln addition, the openings 14 `Will, ac-V

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