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Publication numberUS1632381 A
Publication typeGrant
Publication dateJun 14, 1927
Filing dateSep 29, 1924
Priority dateSep 29, 1924
Publication numberUS 1632381 A, US 1632381A, US-A-1632381, US1632381 A, US1632381A
InventorsPeck Robert E
Original AssigneePeck Hannaford & Peck Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Ventilator canopy
US 1632381 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

1,632,381 June 14, 1927. R, E. PECK VENTILATOR CANOPY -ledi Sept. 29, 1924 4 Sheets-Sheet l 1,632,381 June 14, 1927 R, E, PECK VENTILATOR CANOPY Filed Sept. 29. 1924 4 Sheets-Sheet 2 fiw 5 1,632,381 June 149 R' E PECK VENTILATOR CANOPY Filed Sept. 29, 1924 4 Sheets-Sheet 3 43 anvemto'a wry/a D l,632,381 311W 1927' R. E. PEcK VENTILATOR CANOPY Filed Sent. 29, 1924 4 Sheets-Sheet 4 attenuat Patented June 14, 1927.




Application filed September 29, 1924. Serial No. 740,537.

This invention relates to improvements in canopies adapted to be placed over machines or like devices for collecting, drawing off or removing vapors, heated or moisture laden air, generated duringhthe operation of the machine, to improve t e sanitary and atmospheric condition of the room in which the machine is installed.

The device herein is particularly applicable to laundry machines and is especially designed for use in conjunction with a machine of the mangle type.

Some machines of this class are of very large size, occupy considerable floor space and are frequently installed in basement or low ceiling rooms, so that the headroom above the machine is very limited, making the problem of ventilation difficult. These machines usually have a number of rolls generating considerable heat, and when the work is fed through the machine a. large amount of steam is set off, which if permitted to permeate the room soon makes the same unfit for the workman.

The present invention accommodates for these conditions and provides a canopy for the machine to collect and draw off all of the vapors escaping from the machine, as well as ventilating the room, and of a character easily manipulated for accessibility to the machine whenever required without necessitating the shutting down of the machine or the ventilator machinery forming a part of the canopy organization.

It is, therefore, a particular object of this invention to provide means whereby this heat moisture or steam may be collected and removed to a point outside the room or building this object being herein accomplished by providing a canopy or hoodadapted to be disposed over the ironing rolls of the machine in such a manner as to trap and remove moisture ladened air or steam rising therefrom.

Another object of the invention is to provide a sectional suction drum of the above nature, one part of which is adjustable upon the other to allow the lower or machine engaging section to be raised for any purpose, such as to permit repair or adjustment of those parts of the machine ordinarilyenclosed by the hood.

Another object of the invention is to provide means whereby the lower section may be raised evenly with little efi'ort and, se-

curely held in intermediate or raised position.

Another object of the invention is to provide a suction device and motor for operating the same mounted upon the upper stationary section of the apparatus, the suction device providing means whereby the air is withdrawn from the lower section and delivered to some point outside the building or room.

A feature of the invention resides in'the provision of transparent sides for the hood whereby the operation of the machinery which may be covered thereby may be observed.

Another feature of the invention resides in the manner of telescopically engaging the two sections of the apparatus to obtain limited downward movement of the hood section as well as to guide that section with reference to the upper section.

Another feature of the invention resides in the manner of arranging the hood hoisting apparatus to provide means operable from one side for raising the hood with ease and holding the same at any adjusted position.

Another feature of the invention resides in the hollow construction of the walls of the hood or machine enclosing member, to provide a dead air insulating space adapted to prevent radiation, and condensation on the interior of the hood.

Other features of the invention relate to the construction of the stationary member the construction of the hood, and the con struction of combined corner and track sections as means for connecting adjacent sides of the hood.

Other objects, features, and certain advantages will be disclosed in the description of the drawings, in which: 7

Figure 1 is a top plan,-parts of the upper or stationary section being broken away to show the arrangement of the hoisting cables at the corners.

Figure 2 is a vertical transverse section on line 22, 'of Fig. 1, the movable or canopy section being in its lowered osition.

Figure 3 is a detail plan sectlon on line 3--3, of Fig. 2, illustrating the manner of attaching the window panes to the lower section. r

Figure 4c is a fragmentary detail plan more fully illustrating the arrangement of the hoisting cables at the corners, as well as the construction of the vertical gu1des and roller mountings associated therewith.

as well as the arrangement of thehoisting apparatus and suction apparatus thereon, the lower or hood section being omitted.

Figure 8 is a fragmentaryside elevation broken away to show a portion and arrangement of the hoisting apparatus.

F igure 9 is an elevation showing the device applied to a conventional machine.

The device comprises two telescopically engaged'drum-like sections, as casings, the

vupper adapted to be stationarily attached,

for example suspended from the ceiling, and the lower connected to and surrounding the upper and adapted to be translated thereon,

its movement in one direction, downwardly, being limited by cooperating horizontally extending flanges at the lowermost margin of the upper section, and uppermost margin of the lower section, which flanges are sealingly engaged when the lower casing'is in operative or suction position relative to the machine. The lower or hood section is preferably designed to rest upon the framework of the machine and to lie thereover and enclose the entire area in. which noxious gases or heated or moisture ladened air are being generated. The lower edge of the hood may be shaped to conform to the configuration of the frame, or other immovable part of the machine, the object being to prevent escape of troublesome products into the room or building.

The stationary section is of rectangular trough-like configuration of relativelysmall vertical height, and is referably constructed of sheet metal. Eac side is formed by bending a sheet to provide a vertical wall 2, a relatively long two-ply outwardly extending horizontal marginal abutment flange 3, formed by bending the plate upon itself, an inwardly extending relatively short flange 4, and an upper inwardly extending relatively short flange 5.

The sides thus formed are secured together at the'corners by angle irons 6. A suitable bottom is formed of a lurality of sheets each having marginal hook-like flanges 7, formed 'by re-bending, which are engaged with the flange 4, or its equivalent of the side walls 2, the parts being securely pressed together. Hollow covers are provided for removably closing the upper side of the casing, the same being provided with marginal flanges engaging the flanges 5.

The casing thus formed is partititioned at each side of its central transverse axis ed in the bottom of the top section; a lateral compartment 20 having a delivery opening 22in the top of the housing adapted for connection with the conduit, not shown, leading to the outside point; and a second ,lateral chamber 25 for housing a portion of .a hoisting apparatus.

The partition 17 has an opening therethrough, in which is seated and secured a short conical pipe or conduit 23, establishing communicating between the chambers .18, 20, and having its. small end projecting within the chamber 20 and opposingly operatively related to a corresponding opening in a draft fan 24, mounted upon the end of a motor shaft 26 extending through the side of the housing, the motor 27 being mounted upon a boxing support adjacent the housing. The arrows roughly indicate the course of the products when the fan is operated.

The structure as a whole is reinforced and partitioned by irons and-by the I-beams 13, each of these beams being formed in this instance by placing two sheet metal channels together and suitably riveting or otherwise fastening the same, each I-beam so formed having right angularly bent terminal flanges connected with the vertical sides or partition walls.

The shapecf the housing 14 is immaterial, if proper enclosure and support is provided for the suction fan, and properly disposed passages leading to and from the fan. Although the casing is herein shown as of curvilinear configuration, it may have substantially rectangular form. Moreover, the housing may have only two compartments, in which instance the hoisting apparatus will be independently mounted upon a suitable frame. It is, however, preferable to enclose the hoisting apparatus for the sake of neatness and cleanliness.

- It is preferable to have the suction apparatus located adjacent the intake end of the exhaust conduit, and said apparatus is therer fore mounted upon the stationary casing, although the same may be located at a distant point, with a conduit leading from the canopy connected therewith, or a conduit may lead fromthe lower side of the upper section upwardly therethrough and'be suitably connected with a separately mounted suction apparatus.

As thus constructed the upper section provides a closed casing having a housing extending upwardly from the top, said housing being vertically partitioned to provide at least two chambers, one opening at the bottom of the casing and the other at the top of the housing, the partition having an opening therein for establishing communication between one of the chambers, and a suction fan within the other chamber placed in opposition to the opening. By this arrangement the fan is adapted to exhaust vapor from a point below the upper section, and deliver it through the upper opening of the housing.

The hood or movable section telescopically surrounds the stationary section and is adapted to be raised and lowered relative to that section and the machine.

For this purpose the upper section has a grooved roller 10 mounted at each corner, in a bracket which extends outwardly therefrom at an angle of Each bracket is composed of two strap irons 10 each attached at one end to an adjacent side, their outer ends disposed in spaced parallel relation at the above mentioned angle with the sides to which they are attached. Each iron is slotted lengthwise as at 11 and traversing the aligned slots is a bolt 12 upon which the roller is rotatably mounted. The bolt has a nut by which it is adapted to be clamped. In this manner the rollers may be horizontally adjusted relative to the tracks and set in adjusted position. Thus the hood is centered and guided relative to the stationary member.

The downward movement of the hood is limited, and for this purpose cooperative abutments are provided having the form of horizontal marginal flanges, the flange of the lower casing resting upon the flange of the upper and sealingly engaged therewith This stop engagement normally takes place when the lower edge of the hood is in operative relation with the machine.

The hood may be of any configuration but is preferably rectangular, is constructed of sheet metal, and comprises hollow walled frame-like sides suitably connected together by hollow corner track carrying sections, which latter are suitably secured to the sides to form the substantially rectangular hood structure.

The hood is open at top and bottom and its sides are built up in the form of frames, providing window openings in which are secured window panes, whereby that portionv of the machine covered or enclosed by the hood may be viewed.

Each frame-like side is of hollow construction and is formed from hollow sections each comprising two plates suitably bent and sehook-like flanges 32. A second piece is bent thrice at right angles to provide vertical and horizontal inner walls respectively 33,34 and termmal extensions 35 which are engaged between the hook-like bent over portions 32 of the outer sheet, and the parts secured by pressing together. A horizontal abutment flange 38 is thus provided for engagement with the flange 3 of the upper section, and a vertical flange 40 against which at the inner side the glass is secured. The sheets of which the-bottom rails or sections are constructed are secured together in a manner substantially the same as that of the upper rails, but these provide coplanar longitudinal parallel flanges 41 respectively at the upper and lower sides, (see Fig. 2), the outer plate being bent only to provide hook-like flanges. The glass 43 is sealingly secured to the inner flanges by suitable metallic strips 45, the strips. being secured in any preferred manner.

The hood is translatably guided upon the upper section and for this purpose guides or tracks are provided upon the hood, engageable by the rollers mounted upon the stationary section, the guides being formed as integral parts of the corner pieces which are attached to and hold the sides of the hood together.

The corner sections as units are of hollow construction, (see Fig. 4), and each provides an inwardly extending vertically disposed track formed by similarly bending two metal sheets in opposite directions, and capping the inner end to form a guide wheel engaging edge or track. The sections extend upwardly beyond the walls of the hood so that they are engaged with the rollers at all times. A guide or track is dis posed at each corner at an angle of 45 with the sides of the hood, which angle corresponds to that of the rollers, that engage with the guide. The tracks extend the entire height of the hood and provide means in conjunction with the rollers whereby the hood is at all times positively guided and held in proper relation to the stationary section.

Each combined corner and track section as a unit, hereinafter called corner section, comprises two right angularly disposed hollow side plates or sides having their adjacent vertical edges connected by the terminals of the plates or track members, and the plates and track members are connected together by a corner cap piece. The plates forming each corner section at their vertical 1 provide a side as an abutment 51, and second,

free edges are shouldered and flanged for abutting overlapping engagement with corresponding adjacently disposed vertical end walls or corners of the hollow sides of the hood, as suitably attached thereto to form the substantially hollow walled insulating canopy.

Each side of the corner section is formed from a single sheet bent upon itself to provide a laminated attaching flange 50 and further bent twice at right angles first to an inner wall 52 spaced from and parallel with the outer wall 53. The terminal longitudinal edge of the outer wall of each side is sealingly connected with the sheet metal track member and corner cap piece, the structure and manner of connecting being as follows:

The cap piece is formed by bending a vertical sheet centrally .and longitudinally at right angles and each side thus formed is bent upon itself to provide a hook-like attachment flange 54, which receives one longitudinal terminal edge of a corresponding hook-like flange 55 of the track member, and has its face engaged withthat of the outer wall 53 of the plate of the corner section.

The track member is formed of two sheets, each bent outwardly at an angle of 45, and then at an angle of 90, and finally bent upon itself to form the hook-like flange 55 engaged, as previously mentioned, with the flange of the cap piece and with the terminal of the outer wall of the corner section.

After being engaged and interlocked in the manner described the arts are pressed together. The track thus ormed comprises two thicknesses of metal laid face to face, and a cappiece 56 formed by bending to rovide a rounded roller engaging edge is attached by bolts as shown. The terminal vertical edge of each inner wall of each side of each corner section abuts a track member at the 45 bend as at 57, and may be soldered at this point if desired. By this construction a corner section is provided having hollow side walls terminating in shoulders for engaging the end walls of the hood, and flanges extending substantially coplanar with the outer faces of the corresponding sides, and also having a track member extending inwardly therefrom as an integral part, portions 58 of the track forming end walls parallel with the shoulders 51, the track members in conjunction with the cap pieces functioning to sealingly secure all the members together at the corner.

As before mentioned, the hood is adapted to be raised and lowered and for this purpose the hoisting apparatus is mounted in the housing 14, preferably in the chamber 25, and in the following manner, (see Figs.

7 and 1), and is designed to raise the hood evenly.

by bolts, are two irons, the lower 62 applied directly against the top of the housing, and the upper 63 as a bracket resting thereupon. The vertically disposed arm of the bracket is provided adjacent its extremity with an opening as a bearing in which is rotatably mounted a shaft 64 having at its outer end a pulley adapted for rotation by an endless chain 65. The opposite end of this shaft is rotatably mounted in a bearing bracket dependingly pivoted by a bolt 66 passing through the strap arms, the bearing being thus enclosed within the chamber 25. This shaft has a worm 67 in mesh with a corresponding worm wheel mounted upon a shaft 68, the second shaft projecting at each side beyond the bearing and each end thereof having keyed thereto a grooved pulley 69 having link shaped teeth in the groove adapted to positively engage the links of the chain 70 to drive the same.

. The intermediate portion of the chain passes over each pulley and over correspond- 'ing pulleys 72 mounted in suitable brackets attached to the sides of the upper section,

these pulleys being substantially vertically (See Fig. 1.) Each below the pulleys 69. outer end of the chain is pivotally connected at the intermediate point of a singletree orlever 73. A certain amount of slack is provided in the chain which loops downwardly as at 7 5 at opposite sides of each pulley, and extends across from one pulley to the other as shown in Figs. 1 and 7, and this slack is increased as the hood is raised.

Attached to each singletree or compensating lever are two wires or cables, one attached adjacent each end. There are four of these cables, one attached at each corner of the hood. The singletrees are disposed at opposite ends of the upper section both adjacent the same side walls, and one adjacent each end wall. Attached to and extend-.

'ing from the extremity of one arm of each lever is a cable 7 6 passing over a pulley 77 mounted upon the vertical inner side wall of the section downwardly and attached at its lower end to a corner cross brace 78, of which there are four, one at each corner and located adjacent the bottom of the hood at the inner side. The cable 79 attached at the opposite end of the lever passes horizontally toand around a horizontally disposed pulley 80, thence across to the opposite side of the section to a vertically disposed pulley 81, and downwardly to a corresponding cross brace. The hood section is thus suspended, and the ends of pairs of cables are attached at opposite sides of the compensating lever pivoted to a terminal link of the hoisting'chain.


Whenever the attendant rotates the shaft by means of the chain, the singletrees are drawn in an appropriate direction and the hood evenly raised, the hoisting apparatus being so geared that the relatively heavy hood may be raised or lowered with little eflort.

Each bracket which supports a roller has attached thereto a vertically extending bolt 82 pivoted between the plates by means of a cross pin 83 extending through both. The upper end of each of these bolts is threaded and engaged with the threads are the corresponding threads of a cap 84 having an eye in the form of an axial extension terminally perforated. Through each perforation is engaged and fastened the lower end of a wire 85 which extends upwardly and is suitably attached to the ceiling or other supporting device, not shown, thus properly stationarily suspending the upper section. The threaded engagement of the caps with the bolts provides for levelling adjustment which is accomplished by appropriately rotating the ca s. a

The top of the stationary section is closed by hollow covers 90 formed of two plates of sheet metal, the upper having marginal hook-like flanges with which are engaged terminal flanges of the lower member, these covers being formed substantially in the manner of the sections forming the sides of the hood. The covers prevent collection of dust or other foreign matter and may be conveniently removed when adjustment or repair of the housed mechanism is desired.

Having described my invention, ll claim:

1. A ventilation canopy for collecting and disposing of vapors or the like emitted from machines, of sectional casing structure comprisin a stationary top adapted to be suspended above the machine and having a vent duct therethrough, and side wall sections about said top combined and slidable as a unit upon said top adapting the same to be depended therefrom and with the top provide a closure over the machine to be vented.

2. A ventilator canopy 'for collecting and conveyin escaping vapors or the like emitted rom machines, comprising a top section horizontall disposed and sustained at an elevation above the machine to be vented, side walls disposed about said top section connected as a unit and having a sliding bearing with said top section, adapting the same to be dependingly sustained therefrom to provide a closure for the machine to be vented, and elevator means for moving said side walls to elevated positions.

3. A ventilator canopy for collecting and conveying escaping vapors or the like emitted from machines, comprising a double walled top section horizontally disposed and sustained at an elevation above the machine to be vented, and having a vent passage therethrough, side walls disposed about said top section having a sliding bearing with said top section, adapting the same to be dependingly sustained therefrom to provide a casing closure for the machine to be vented,

at the corners thereof adapting the side walls to be dependingly sustained from the top section and therewith form a casin closure for the machine to be vented, and elevator means, carried by said top section with said side walls at the respective corners of said top and side wall unit for moving said side walls as a unit to elevated positions.

5. A ventilator canopy for collecting and conveying escaping vapors or the like emitted from machines, comprising a top section horizontally disposed and sustained at an elevation above the machine to be vented,

and having a vent opening therethrough, 7

side walls disposed about said top section and having a sliding bearing therewith for lowering and elevating the walls, said walls each having a lateral flange projecting inwardly from the upper edge thereof for engagement with the top section when in this depended position, to provide a closure joint, and elevator means for moving said side walls to elevated position.

6. A device for collecting and "disposing of gaseous products generated by and rising from a machine, comprising a stationary casing section adapted to be suspended over the machine, having an outwardly extending marginal flange at its lower perimeter and having a suction passage for receiving prod note from below and discharging the same, a hood section enga ed about said stationary section and guided thereon, adapted to engage the machine when in lowermost position and having a marginal flange inwardly extended from the upper end of the hood section for cooperation with the marginal flange of said stationary section, and hoisting means upon the stationary section having cables extending to the corners of the hood adjacent its lower end for raising the same to give access to the machine.

In witness whereof, I hereunto subscribe

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3025780 *May 8, 1959Mar 20, 1962Norbute CorpLaboratory fume hood
US4088157 *Jun 8, 1976May 9, 1978Sulzer Brothers Ltd.Hood system for covering an automatically operating machine
U.S. Classification454/65, 38/1.00R
International ClassificationF24F13/00, F24F13/20
Cooperative ClassificationF24F13/20
European ClassificationF24F13/20