USRE4220E - Improvements in water-fife machines - Google Patents

Description

" A.BEST VAILABLE COPY AclOD EI'ISV'IIVAV 1839 PATENT OFFICE.

JOHN YV. STOGKVELL, OF PORTLAND,'MAINE.

IMPROVEMENTS IN WATER-PIPE MACHINES.

Specification forming part of Letters Patent No. 106,424, dated August 16, 13707 reissue No. 4,220, dated December 27, 1870.

To all whom it may concern:

Be it known that I, JouN W. STOCKWELL, of Portland, in the county of Cumberland and State of Maine. have invented a new and useful Improved Water-Pipe Machine; and I do hilly declare the following to be a full, clear, 'alact description thereof, referelxlicebe ng broken away Fig. 2 is an end mold. Fig. 3 is ion of the same; and Fig. tly in section, of the device for forming the tip upon the pipe.

Same letters refer to like parte.

My invention relates to a drain-pipe machine, and consists of the following improvements: first, in combining with a suspended oscillating hopper an auxiliary plate and adjustable slide, in a new and improved manner; second,in the combination of a rotary vertical slotted shaft, a core, acase, a rotary sleeve, which is pushed up through the case as the pipe is manufactured, and rotating packers or trowels attached to said sleeve; third, in an improved tubular shouldered tool, having inclined cutters on its outer face.

The kind of pipes-viz., drain and similar pipes-to which my machine has reference is at present manufactured by lling the material into an outer casing having an internal core, and then tamping or beating down the material by menus of a tamping stick or iron heldin the hands of the workman. The result of this imperfect method is that the material is packed in a state of unequal density throughout the pipe, as it is not the case that the workman strikes blows ot' i equal force and frequency upon allparts of the pipe during its construction, leaving frequent weak and porous places. The pressure of my trowels is all the time perfectly uniform upon all points of the pipe, can be regulated as desired, and their movements remedies defects of previous mixture; and, moreover, my method of manufacture is much more rapid than that by hand.

In the accompanying drawing, A represents the frame-work of the machine or building. B is the drivin g-shaft, which may be driven by any convenient power, and to which the po may be applied by a pulley, by gear-Wheels, by otherV convenienty y y f frame-wai" t hangs free, and has a pin or pivot formed iu attached to the center of its lower end, whi may enter a socket in the end of the core Gr'y l the mold. The core G is made of the eX shape and size that the interior of the pi should have. The lower end ot' the core G passes through and tits into a hole in the baseplate H of the mold. The base-plate Hot' the mold is secured in a hole or recess in the platform I, which is supported upon the door or platform a' of the frame-work A, so that the lower end of the core G may restupon the said door or platform a.

The platform I may be mounted upon small wheels or rollers for convenience in removing and replacing it as required.

The base-plate H is made with an interior shoulder around its centrai hole, to form the socket or recess in one end of the pipe to receive the tip of the end of the adjacent length of the. pipe. The base-plate H is also formed with an exterior shoulder to receive the lower end of the case J of the mold.

The case J may be made of a sheet of sheet metal, bent into a cylindrical form, with edges capable ot' fitting each other, and the edges may be held together while the material of the pipe is being packed into it by the bands K, two or more of which are passed around it, and the ends of which are bent outward, as shown in Figs. 1 and 2, to receive clampingscrews L, which are riveted to one end, and screw into the other end of said bands.

By adjusting the bands K so that their open ends may be on opposite sides ot' t-he case J, as seen in Fig. 1, the said projecting ends may serve as handles for convenience in moving the mold.

By this coutrivauce, when the material ot' which the pipe is formed has set, the core G is pushed out, the screws L are loosened, al-

BEST AVAILABLE COPY lowing;r the bands l( to be removed, when the case, if'madc of sheet metal, will expand or open somewhat, in consequence ofthe natural elasticity of the metal ot' which it is made, and then it may be removed from the pipe.

Another method of ellecting the same is by bending' outward the edges of the open case J, and securing the same to each other by two or more screw-clamps, M, Fig. 3, which hold the two edges together, and enable the case to be easily and surely adjusted in its proper place. The prepared material is fed into the lnold from the hopper N, the rear end ot' which is hupg from the frame A by a jointed rod or rods, @and the forward and lower end ot' which upon the platform P in such a position the material maypass from the hopper .A A, A er parts are turned a little outward, so as .elfemircss against the sides of the grooves, and s hold the slide securely inany position in I ich it may be adjusted. o one side of the hopper N is pivoted one pivoted eccent-rically to the lower end ot' the shaft S, the upper end of which revolves inv bearingsin the frame Ain such a position that.. the pulley T, secured to the upper part of said'l band D,^so that shalt, may bear against they '7 the movement of the said band D may revolve the shaft S, and thus shake the hopper N or the motion thus imparted to the hopper may be obtained in any equally convenient manner.

A part or the whole of the platform P should be detachable, so that it can be conveniently removed for convenience in removing and adjusting the mold.

U is a sleeve, litting over the core G and the shaft F. The shaft F has the longitudinal slot, slots, or grooves 1. The sleeve U has one or more pins or studs ttinginto thesaid slots or grooves, so that the rotation of the shaft is communicated to the sleeve; at the same time the sleeve'may slip up on the shaft F as fast as the material is filled in under the trowels V. The sleeve U, with its trowels, is thus pushed upward throughl the case J bythe progress ofvr the formation of the pipe under the-trowels or packers, the same rotating meanwhile so as to l pass down and pack 'f innemend,

end of the rod R, the other end of which is the cement o the'fpiper The trowels are attached `t le ower end of the sleeve, and are made of such curvilinear form that the material of the pipe passing down between them to be packed is not carried around with ,them as they rotate, but drops down, and is immediately Worked by them into place. The material is thus packed evenly and closely into place, the trowels filling, or nearly filling, the mold or case.

In the case ot' oval pipe, the trowels may be so'arranged in the sleeve U as to pass around and within an oval case, and adjust themselves to such a form. The shaft F may be raised to disconnect it from the core G by the shifter \V, as shown in Fig. 1. When this is done, the tube U and its attached trowels are raised and held suspended by a suitable catch attached to the framework A. The tool X is then placed on' the upper endofthe core G, and turned around by hand or' by lowering the shaft F down upon it, and s revolving-why theA movement of the machin@ outer side, which, away and remove t end ot' the pipe, comes in contact pipe and stops the action of the tool. A few turns ot' the tool backward smooths olf the end of the pipe, andY leaves the tip perfectly formed.

vIy do not Vclaim the bands K by themselves.

It is apparentthat the trowelsmay be stationary while a part or the whole of the material is fed into the case.

What I claim as my invention, and desire to secure by Letters Patent of the United States, 1s-

1. The suspended and oscillating hopper N, adjustable slide Q, and auxiliary' hopper-plate, all constructed and relativelyarranged to form au improved feeding device t'or a pipe-molding machine.

2. The core G, grooved or slotted vertical rotary shaft P, rotary sleeve U, with its stud or pin A and the trowels V, all constructed, combined, and operating substantially as and for the purposes herein set forth.

3. The device X Y, for forming the tip of the pipe, constructed and operated substantially as described and shown herein.

JOHN W. STOCKWELL.

Witnesses:

WM. FRANKLIN SEAVEY, GEORGE E. BIRD.

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