|Publication number||US281150 A|
|Publication date||Jul 10, 1883|
|Publication number||US 281150 A, US 281150A, US-A-281150, US281150 A, US281150A|
|Inventors||George A. Smith|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (7), Classifications (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
', G..A. SMITH 86 M. W. VOIGTMAN.
dbvetail groove through a slot, 0,
rolls. Fig. 6 represents STATES ,NiTE' AENT OFFIC GEORGE A. siirrrn'nnn MAX W. voicrnnn, or? sT. LOUIS, MISSOURI; SAID VOIGTMAN ASSIGNOR TO SAID s rr'H.
SPEOIElGhTION forming part of Letters Patent No. 281,150, dated July 1 0, 1883, Application filed September 12,1922." no moilghl- To allwhom it may concern:
Be it known that we, GEORGE A. SMITH and MAX W. VOIGTMA'N, both of the city of 8t. Louis, in the State of Missouri, have invented a certain new and useful Improvement in Lay-Boys, of which the following is a speci fication, reference being had to the accompanying drawings, forming part of the same. a Our improvement is primarily intended for application to a paper-ruling machine, and it will be described in this connection. It may be applied to printing-pres, and in other situations. where a sheet of paper is carried forward in front of its. supporting device.
()ur invention consists in the improvements hereinafter described, and pointed out in the claims.
Figure 1 illustrates our invention in side view. Fig. 2 is a transverse section at 2-2, Fig. 1, one of the ,lower dropper-rolls being shown in section. Fig. 3 is a section at 3 3, Fig; 2. Fig. 45 is a detail end view of the rollers by which the paper is carried and their drive-pulleys. Fig. 5 is an enlarged detail perspective of the adjustable bearing of the stretching-roll of the endless apron by which the ruled paper is presented to the droppera transverse section of the paper sheet.
A represents the frame of a paper-ruling machine, B brackets, and G vertically-adjustable standards secured in the brackets by a and a set screw, D,.passing in the standard and screwing into the bracket.
E is a bearing-box at the hpad of the standard, receiving the journal or gudgeon of the apron-carrying roller F. 1
G is the endless apron by which the ruledpaper is carried from the ruling pens to the dropper-rolls. The endless apron passes over aroller, H, in near proximity to the lower dropper-rolls, M, and upper dropper-rolls, N, and in such relative position thereto that the advancing edge of the paper is taken between the dropper-rolls and it is drawn forward thereby. Upon the roller H (or the shaft of the same) is a pulley, I, carrying a belt, .7,
which also passes over a pulley, K, upon the carrying-shaft L of the lower dropper-rolls,
. the edges 0 without creasing,
paper are brought M. a The relative sizes of the pulleys I and K are such that the shaft L has faster rotation than the roller H, so that the paper sheet is drawn forward on the endless apron at it than the apron travels to pregreater speed vent one sheet interfering with another that is following it. The peripheries of the dropperrolls M are of concave conical form and flush with the carrying-shalt on their inner sides,
so that the paper 0, when lying upon them and pressed down by the rollers N, which have convex outer faces, will be curved up at I and will thus he made to assume the form of a shallow trough, with thesides gradually curved upward without being bent, having sufficient rigidity to prevent its bending downward, so that it is self-supporting throughout its length, and is supported clear of the receiving oox '1 until thelast edge escapes from the dropping-rolls, when it falls down uponthe table, (or the other sheets thereon.) The lower rolls, M, taper off on their inner sides, forming annular knifeedges in close contact with the shaft, as shown in Fig. 2, so that the surfaces of the shaft and roller fade into each other, and the shaft really forms a continuation of the rolls in all their positions, and both sets of rolls M and N are adjustable upon their shafts-L and P, so that they can be moved sidewise to suit paper of various widths-from the narrowest to the widestand acontinuous support from side to side for any width. The faces of the upper dropper-rolls, being convex, as shown, impart a curved edgeto the paper without creosing it.
m and n are set-screws by which the lOllBlS M and- N are held in position upon theirshafts when in use.
The roller. H and shaits L and} have jourrial-bearing on bracket; arms R and S, respectively.
The operation is as follows: The sheets of forward upon the endless apron G, and their front edges are seized by the dropper-rolls M and N, which curve up the edges and rigidify the sheet, and it is held clear of the box T until it leaves the rolls M and N, when it drops down. The downward slope or inclination of thcendlcss apron G from the when]? to insure the feeding of the dropper-rolls with sure their proper engagement.
The inclina- 5 tion may be increased by raising the rollerF.
\Ve claim as our invention-- 1. In a'paper-dropper,
sides and shait, a continilous for the paper, as set forth.
2. In a paper-dropper, the
L, the knife-edges forming,
the lower rolls, MM, I having concave conical inner sides formed with in combination with a with the smooth eomhination of rolls,
shaft L, lower-adjustable rolls, M- M, having concave conical inner sides formed with anmv lar knife-edges, and the upper N N, having convex faces fitting the inner concave comcal sides contact, the said lower rolls forming,
at their point of with the adjustable shait, a continuous smooth support from side 20 to side for any width of paper, as set forth.
' GEO. A. SMITH.
MAX \V. VQIGTMAN. witnessek SAML. KNIGHT, ALBERT G, Fisn.
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