USRE169E - Improvement in feeders for screw-machines - Google Patents
Improvement in feeders for screw-machines Download PDFInfo
- Publication number
- USRE169E USRE169E US RE169 E USRE169 E US RE169E
- Authority
- US
- United States
- Prior art keywords
- screw
- blanks
- hopper
- frustum
- space
- Prior art date
Links
- 210000001699 lower leg Anatomy 0.000 description 12
- 230000002459 sustained Effects 0.000 description 8
- 238000005192 partition Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 4
- 230000001721 combination Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000003696 stearoyl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
Images
Definitions
- A represents a conical hopper, sustained in position by a suitable frame work, B.
- Two conic frusta, O D are disposed within the said hopper, the one Aabove the other, and sustained upon the shaft or bearings, having the same axis of motion as seen in the drawings.
- the said conic frusta should revolve in contrary directions, as denoted by arrows in the figures.
- the diameter of the base of the lower frustum is somewhat less than the diameter of the lower part of the interior of the hopper, there being a circular space, E, left between them of a width to correspond with the diameter of the shank of each of the screw-blanks, 8m., and permit them tol move freely through it, as will be hereinafter described.
- the interior surfaces of the two conic frusta should be roughened or indented in such manner as cause them to revolve.
- the angles of inclination of the-exterior edge of the two conic frusta andtheinterior edge of the hopper with respect to a horizontal plane are to be equal, or about equal, as denoted in Figs. 3 and 4.
- a partition plate, fence, or guard, F which I secure to the hopper and permit to approach as near as possible toward the frusta and not interfere with their revolving move ments, and at a suitable distance from or on the right of the said fence or guard and between the interior face of the hopper and exterior faces of the frusta I arrange a revolving beater, G.
- the said beater consists of one or more triangular or other suitably shaped plates, H H, applied to a horizontal shaft, I, extending into the hopper and sustained in bearings at L M, as represented in the drawings.
- said beater may be revolved by an' endless band, N, which may pass around a grooved pulley, O, placed upon the shaft l? of the upper conic frustum, and thence over guide-pulleys Q R and under a small pulley, S, fixed upon the shaft of the beater.
- frustum should have a pulley, T, fixed upon its axis. From the said pulley an endless belt, U, proceeds to and around a pulley, V, fixed The The lower conicr arms of the beater, shaped as seen in Fig. 3
- the said shaft has another pulley, X, fixed upon its upper end, the said pulley communicating with anotherviz., Y-upon the shaft of the upper conic frustum by a crossed band, Z.
- the screw or other blanks of the kind are to be thrown previously into the hopper on the left-hand side of the partition or fence F.
- the upper conic frustum, ⁇ C revolves from left to right and the lower one, D, from right to left, they will distend the screw-blanks which come in contact with them in such manner as to cause them to successively move downward toward the circular space E, before mentioned, through which the shanks will fall until arrested in vertical position by the heads of the blanks coming into contact with the adjacent inclined surfaces of the lower conic frustum and the hopper.
- the lower frustum continues to revolve it will advance each screw-blank through the circularl space E in Vthe direction in which it (the frustum) travels.
- the circular space E will thus be filled with screw-blanks, whose shanks stand in-vertical positions7 as denoted at a a. rlhe object of the beater is to prevent any one of the screw-blanks from overriding the others or passing toward the delivery, il' they are notin a proper position in the space E.
- the object of the upper conic frustum is to prevent the blanks from being carried around toward the beater in too great a body. It also facilitates the downward movement of the blanks toward the space E.
- the triangular wings or 7 revolve in the opposite direction of the lower conic frustum. They therefore throw or keep back such blanks as'are not properly suspended in the space E.
- the apparatus by which the blanks are regularly delivered or fed from the circular space E. It consists of a horizontal slide-plate, b, (see Fig. 5, which represents a view of the under sides of the hopper and lower conic frustum, D,) ahxed to the lower edge of the hopper just on the right of the partition F, the said plate being suitably sustained, so as to slide toward and from the axis of the lower conic frustum. It is forced inward or toward the axis of the frustum by means of a spring, c, applied to it and attached to the hopper.
- a spring, c applied to it and attached to the hopper.
- the said check-plate has a circular aperture, d, cut through one end of it, and a passage, e, into said aperture cut through the side of the plate, the whole being as seen in the drawings.
- the inner end of the plate is cone-shaped, as seen at f, so that when a stud, g, projecting from the under side of the lower frustum, is brought into contact with it, it (the stud) shall press the slide outward or in a direction away from the frusturn and bring the passage e into line, or so as to correspond with the circular opening E. Then this takes place, the movement of the lower frustum will carry oney of the screw-blanks through the passage e and cause it to drop out of the machine, the circular aperture d being made larger in its diameter than that of the head of the blank.
- the inner periphery of the conical hopper is formed with a recess just under the checkslide, (not seen in the drawings) of suiiiclent capacity for the free passage of the heads of the screw-blanks or other articles when delivered by the checkfslide.
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