US1876850A

US1876850A - Register for heating plants

Info

Publication number: US1876850A
Application number: US468670A
Authority: US
Inventors: John J Burgess
Original assignee: ROCK ISLAND REGISTER Co
Current assignee: ROCK ISLAND REGISTER Co
Priority date: 1930-07-17
Filing date: 1930-07-17
Publication date: 1932-09-13
Anticipated expiration: 1949-09-13

Description

Patented Sept. 13, 1932 omen STATES JOHN J. nnnenss, or Book ISLANED, ILLINOIS, ASSIGNOR TO noox ISLAND REGISTER COMPANY, or ROCK ISLAND, ILLINOIS, A CORPORATION or ILLINOIS REGISTER FOR HEATING PLANTS Application filed July 17, 1930. Serial No. 468,670.

ing the louvres has smaller thickness, requir ing less space for storage on warehouse shelves.

In the drawing: V 7 v Figure 1 isan end view ofthe assembled register box, with the end rail nearest the observer removed.

Figure 2 isa bottom view or the assembled Lo registered box. I 1

Figure bfisa section of end rail -5, seen in Figures 1 and 2. I

Figure e is a bottom View, partly broken away, showing details of construction of a louvre.

Figure 5 is an end view of a louvre; Figure 6 is a bottom view of a bearing pin pad. I k I Figure 7 is an end View of same. Figure 8 is a perspective topview of one end of a louvre. v I

Figure 9 shows a member for operating the louvres; and

Figure'lO showsthe form of the spring seen in Figure 1. I T r The same numerals refer to corresponding parts in the; different figures of the drawing. In Figures 1 and 2 the side rails 1 and 2 have straps 3 and 1 bending around the cor- 11ers and riveted to end rail 5, as indicated. In Figure 3- is shown a section of end rail 5 with its U shaped lower member 6,in which the bearing holes 6 for the louvre pins are formed.

formed. At one end a small extension of the metal is pressedinto cylindrical form to provide the bearing pin? andia knob-like inem- 'ber 8 which serves as a spacer to prevent the 59 leaf of the louvre from touching the end rail.

In Figure 4 is shown one louvre partly The pin 7 and spacer 8 are seen in end view in Figure 5. In Figures 6 and 7 is seen a small pad 9 of sheet metal with pin 10 and spacer 11 pressed in the same shape as 7 and 8, with holes 12 matching holes 13 in Figure 4 for-riveting the pad on the louvre tojprovide pin and spacer for its other end. For at this end of the louvre an extension of the metal is formed into the half circle 14,which is bent up at right angles, as seen in Figure 8, and a further extension 15 is bent forward to form the are shaped rim 15 seen-in Fig ure 8.

- In Figure 2 the pads 9 are seen riveted to the under side of the louvres, with pins 10 indicated in dotted lines extending through the'U shaped bottom member 6 of end rail 5'. By forming the member 6 in a roundU shape, with only space enough inside the U for the bearing pins, the bearing holes must pass through the metal 'Wall of member 6 diagonally in the curve, so that the bearing surface of the hole is considerably increased for the pin to turn in, preventing rapid wear of bearing holes.

7 .715 In Figure 1,"1t is the farther end rail that is indicated at 5, the nearer end rail being removed toshow shifting bar 16 with two notches 17 and 18' and tooth 19 between the notches. Bar 16 has a pair of notches and a tooth for each louvre contained in the box. The tooth projects downward through hole 20in rim 15; Figure 2 is a bottom view so that the point 21 of tooth 19 is-seen in hole I 20, where part of the U-member 6 of theend' rail is broken away. i

trip member 22, seen in Figure 9, is formed on strip 23, which is riveted to bar 16 so as to stand up above the face grill not shown, which covers a register box when in service, so that the'louvres may be opened or closed with the foot, or otherwise. It is easily understood from Figure l'howthe moving of bar 16 will rotate all the louvres on their pins. The particular value of this construction is its compactness and its ease and smoothness of operation, due to the three impulses given by the shitting-bar to the 'louvres during the shift; For whiletooth 19 gives the impulse in hole 20 during the mid part of the shift, the sides 24; and 25 of the notches make contact with the ends of are 15 and give the impulse during the remainder of the shift in either direction, having the effect of a rack and gear with several teeth. Tooth 19 is of such shape, having sides at about 30 degrees angle to each other, or 15 degrees from the vertical, that it nearly fills hole 20 in all positions of are 15, preventing lost motion. 7

Shifting bar 16 is held down by spring 26, seen in Figures 1 and 10, which is inserted between bar 16 and strip 23 and clamped between them in the position shown in Fig. 1 when they are riveted together. In Figure 1 are seen

bars

27, 27, which span the register box from one end rail to the other to strengthen the top grill, not shown. Spring 26 presses up into notches in the under side of bars 27 and down against bar 16 and strip 23, and so holds bar 16 snugly down with its notches astride the metal bordering hole 20 of the arcs, to prevent rattling during operation. The spring is provided with two humps, as shown, which pass under bars 27 and serve to retain the moving parts in either open or closed position. This action of the spring is similar to that of the spring which holds the push button of an electric switch in its inner or outer position.

Theinvention is not intended to be limited to the form or any of the details shown, but to embrace the scope of the following claims.

What is claimed is:

1. In a register, the combination of a plurality of sheet metal louvres; at one end of each louvre a smallextension of its metal formed into a cylindrical bearing pin and spacer knob, said extension being integral with the louvre along the entire width of the extension, the knob being'formed by rolling up the sides of the extension next to the louvre into the form of a dome open at one side, and the pin being formed by rolling up the sides of the remaining portion of the extension until the edges are opposite each other; at the other end of each louvre a small pad of metal formed with similar bearing pin and spacer knob and attached to the louvre; at this latter end of each louvre an extension of its metal bent at right angles upward, then at right angles forward again and formed into an arc rim concentric with the bearing pin and pierced with a hole; a frame for the louvres having bearing holes to receive said bearing pins; and a shifting bar crossing the louvres having two notches and a tooth at each arc rim, with the tooth through the hole in the arc rim and the two notches astride the metal of the arc rim bordering the hole.

2. In a register, the combination of a plurality of sheet'meta-l louvres; bearing pins a t-the ends of each louvre; an arc rim at one end of each louvre; a frame for the louvres having bearing holes for said bearing pins; strengthening bars spanning the frame; a shifting bar under the strengthening bars crossing the louvres and having members cooperating with the arc rims for rotating the louvres on their plns a trip member attached to the shifting bar for shifting the latter; and a leaf spring held at its ends between the shifting bar and trip member, having sliding pressure against the strengthening bars for preventing rattle of the parts and said springs having bowed portions for retaining the parts in whichever position they have been set.

3. In a register, a sheet metal louvre having an extension at one end, the extension being integral along its entire width with the louvre, and the sides of said extension at the inner or baseend being rolled up towards each other to form a stop substantially in the shape of a dome with one side open, and to form a cylindrical pin outward of said stop.

7 4. In a register, a sheet metal louvre, a sheet metal plate secured to one end of the louvre, said plate having an extension projetting beyond one end of the louvre, the extension being integral along its entire width with the plate, and the sides of said extension at the inner or base end being rolled up towards each other to form a stop substantially in the shape of a dome with one side open, and to form a cylindrical pin outward of said stop.

5. In a register, a louvre having an extension at one end bent up at right angles to the plane of the louvre, said extension having an arc-shaped flange bent outward (at right angles thereto, and a hole through said flange substantially midway the ends of the arc.

6. In a register, a louvre having a substantially semi-circular extension at one end bent up at right angles to the plane of the louvre, said extension having an arc-shaped flange bent outward at right angles thereto from its edge near one end of the semi-circle, a hole through said flange substantially midway the ends of the arc, and a shifting bar having two notches forming an intermediate tooth, the tooth projecting through the hole in the flange, and the outer walls of the notches engaging the edges of the flange at the ends of the arc.

7. In a register, the combination of a plurality of pivoted louvres, a frame for the louvres, strengthening bars spanning the frame, a shifting bar under the strengthening bars crossing the louvres and having members for rotating the louvres on their pivots, a strip attached to the shifting bar, and a leaf spring held at its ends between the shifting bar and strip, having sliding pressure against the strengthening bars for preventing rattle of the parts, and said spring having bowed portions for retaining the parts in whichever positionthey have been set.

8. In a register, the combination of a plurality of pivoted louvres, a frame for the louvres, strengthening bars spanning the frame, a shifting bar under the strengthening bars crossing the louvres and having members for rotating the louvres on their pivots, and a leaf spring secured at its ends to the shifting bar, said spring having sliding pressure against the strengthening bars for preventing rattle of the parts, and said spring having bowed portions for retaining the parts in Whichever position they have been set.

In testimony whereof I aflix my signature.

JOHN J. BURGESS.