US2179707A - Ventilator - Google Patents

Description

Nov. 14, 1939.

P. BERNHARDT 2,179.70?

VENTILATOR Filed May 14, 1936 2 Sheets-Sheet 1 PHC-SM1.

Patented Nov. 14, 1939 i UNETED STATES PATENT OFFICE VENTILATOR.

Paul Bernhardt, Milwaukee, Wis., assignor to Loeelholz Company, Milwaukee, Wis., a corporation of Wisconsin Application May 14, 1936, Serial No. 79,656

7 Claims. (Cl. 98-106) This invention relates to a ventilator or simi- Fig. 7 is a sectional view through the link on lar appliance. the line 'I-'I Fig. 3.

The ventilator to which the invention applies The ventilator is provided in general with a in particular is of the type in which a frame or frame or casing I enclosing a passage for the casing enclosing a passage for the delivery of air delivery of air therethrough, an adjustable i5 therethrough is provided with an adjustable damper 2 arranged at the rear of the casing to damper arranged to control the flow of air vcontrol the admission of air thereto and the dethrough the passage. livery of air therefrom, and an actuator con- The invention has for its object to provide the nected to the damper to adjust its position and 10 damper with an actuator by which it is readily retain it in a fixed position after its position has 10 movable to adjust its position and then firmly rebeen adjusted. tained in its adjusted position. The casing i has an outward flange 3 at its Another object is to provide a ventilator which o-uter edge to position it in its support and fais simple in construction and durable and efcilitate fastening it in place by screws or other cient in service and which may be readily asnstrumentalties, andV it has thereon across l5 sembled and disassembled. the front of the passage therethrough a remov- Another object is to provide a unitary Ventiable grating to obstruct access thereto and keep lator which may be readily installed. extraneous objects therefrom.

Another object is to provide a ventilator which The grating is formed by strips 4 arranged may be readily and economically manufactured. apart from each other and carried by bars 5 ar- 20 According to the invention as it is ordinarily ranged apart from each other and passing embodied in practice, the ventilator is provided through the strips, and it is retained in place witha frame or casing enclosing a passage for in the casing by a ledge 6 therein and pin 'I the delivery of air therethrough, an adjustable attached to the casing and bent over the grating.

damper arranged to control the ilow of air The damper 2 is pivoted to the casing at its 25 through the passage, a rotatable operating spinbottom by removable pintles 8 passing into lugs dle having a screw thread to form a screw there- 9 on the damper and casing, and thereby its po- On, a connecting link carried byk the operating sition is adjustable to control the admission of spindle to be movable by the screw in `an axial air tothe Casing and the delivery 0f ail' theredirection thereto and having a transverse groove, from. 30 and a pin attached at both ends to the damper The actuator by which the damper is moved and arranged lengthwise in the groove. at'will to adjust its position and retain it in a The ventilator which is hereinafter described Xed DOSitiOn after its DOSOH has been adjustand illustrated in the accompanying drawings to ed, is provided with a rotatable operating spinexemplify the invention has been devised pridle Ill having a steep pitch screw thread at its 35 marily to control the delivery of fresh or condiinner end to form a steep pitch SCIeW II. tioned air into railroad cars, but as will be The spindle I0 is supported by a bearing I2 readily understood, the invention may take and formed on the casing and rotatable by a knob I3 assume other forms and be embodied in other on its outer end, and it is retained from axial 40 appliances for various uses and purposes. movement in its bearing by a flange I4 formed 40 The views of the ventilator shown in the ac- 1113011 it 011 the inside 0f its bearing and the companying drawings and hereinafter described knob I3 on the outside of its bearingare as follows: The spindle carries and supports a link I5 that Fig. 1 is a front View of the ventilator aris movable by the screw in an axial direction ranged in an air delivery box. thereto, and it is connected to the damper to 45 Fig. 2 is a transverse section on the line 2-2 adjust the position thereof upon the spindle be- Fig. 1. ing turned or rotated.

Fig. 3 is a vertical section on the line 3 3 Fig, The link I5 has at its front end a screw threadl, showing the damper in its closed position. ed socket I6 to receive the screw II, and it has Fig` 4 is a vertical section on the line 3 3 near its rear and a transverse groove I1 to form 50 Fig. 1, showing the damper in its open position. a hook I8 thereon.

Fig. 5 is a rear view of the ventilator on the The damper has formed therein a pocket I9 line 5-5 Fig. 3. to receive the link, and a pin 2U is attached at Fig. 6 is a sectional view through the actuator both ends to the damper Within the packet. spindle and link on the line 5 6 Fig. 3. The pin is arranged lengthwise in the grooves 55 to connect the link to the damper and facilitates disconnecting the damper from the link.

The link is retained from rotation by a guide 2| embracing the link and attached to the casing by screws 22.

The damper and the link have interposed therebetween to keep the damper from chattering, a spring 23 setting in a socket 24 in the pocket and having a cap 25 engaging the link and slidable into the socket.

When the spindle is turned or rotated, the screw will impart a ready and quick movement to the damper to adjust its position, but after the damper has had its position adjusted, it will be retained by the screw in a fixed position until the spindle is again rotated to readjust its position.

The ventilator set forth herein may have its parts readily disassembled by removing the pintles from the lugs on the damper or casing and the knob from the spindle, and then disassociating the damper from the actuator and casing and the actuator from the casing, and likewise, it may have its parts reassembled by reassociating the actuator with the casing and the damper with the actuator and casing, and replacing the pintle in the lugs on the damper or casing and the knob on the spindle.

The railroad cars in which the particular ventilator described herein is devised to be used, have installed in the walls thereof at suitable places a box 26 to support the ventilator.

y The box has an open top to admit thereto fresh air supplied through a conduit from the source of fresh or conditioned air, and an open front to receive the casing of the ventilator.

The ventilator is retained in place upon the box by the ange on its casing being fastened by screws to the wall around the box.

The box has across its front and top above the casing of the ventilator a removable plate 21 attached to lugs therein by screws.

The invention which has been set forth herein is susceptible of various other embodiments from that obtaining in the particular embodiment thereof described in detail herein to explain its principles.

The invention described in the foregoing specification and shown in the drawingsl forming a part thereof, is hereby dened and claimed as follows:

1. An appliance such as described, comprising, in combination, a casing enclosing a passage, a movable damper having its position adjustable to control the entrance to said passage, a link having a transverse groove, a rotatable spindle carrying said link and having a screw thread to move said link in an axial direction thereto, and a pin having both ends attached to said damper and arranged lengthwise in said groove to connect said damper to said link.

2. An appliance such as described, comprising, in combination, a casing enclosing a passage, a damper pivoted to said casing, and having its position adjustablev to control the entrance to said passage, a link having a transverse groove, a rotatable spindle carryingl said link and having a screw thread to move said link iny an axial direction thereto, a bearing retaining said spindle from axial movement, a guide retainingsaid link from turning, and a pin having both ends attached to said damper and arranged lengthwise in said transverse groove to connect said link to said dampen 3. An appliance such as described, comprising, in combination, a casing enclosing a passage, a movable damper having its position adjustable to control the entrance to said passage, a link having a transverse groove, a rotatable spindle carrying said link and having a screw thread to move said link in an axial direction thereto, a bearing retaining said spindle from axial movement, a pin having both ends attached to said damper and arranged lengthwise in said groove to connect said damper to said link, a guide retaining said link from turning, and a spring arranged between said damper and said link to keep said damper from chattering.

4. An appliance such as described, comprising, in combination, a casing enclosing a passage, a damper pivoted to said casing and having its position adjustable to control the entrance to said passage, a link having a transverse groove, a rotatable spindle carrying said link and hav# ing a screw thread to move said link in an axial direction thereto, a guide retaining said link from turning, a pin having both ends attached to said damper and arranged lengthwise in said transferse groove to connect said link to said damper, and a spring arranged between said damper and said link to keep said damper from chattering.

5. A ventilator, comprising in combination, a casing enclosing a passage for the delivery of air therethrough, an adjustable damper arranged to control the flow of air through said passage, a rotatable operating spindle retained in a fixed axial position and having a screw thread to form a screw, `a link arranged on said spindle to be moved in an axial direction thereto by said screw and connected to said damper to adjust its position and retain it in a xed position after its position has been adjusted, and a spring arranged between said link and said damper to keep said damper from chattering.

6. An appliance such as described, comprising, in combination, a casing enclosing a passage, a movable damper arranged to control the entrance to said passage and having a pocket formed therein, a link projecting into said pocket and having a transverse groove, a rotatable operating spindle carrying said link and having a screw thread to move said link in an axial direction thereto, a bearing retaining said spindle from axial movement, a pin having both ends attached to said damper within said pocket and arranged lengthwise in said groove, and a guide retaining said link from turning.

7. An appliance such as described, describing, in combination, a casing enclosing a passage, a movable damper arranged to control the entrance to said passage and having -a pocket formed therein, a link projecting into said pocket and having a transverse groove, a rotatable operating spindle carrying said link and having a screw thread to move said link in an axial direction thereto, a bearing retaining said spindle from axial movement, a pin having both ends attached to said damper within said pocket and arranged lengthwise in said groove, a guide retaining'said link from turning, and a spring arranged in said pocket between said link and said damper to keep said damper from chattering.

PAUL BERNHARDT.

. CERTIFICATE CE CORRECTION. Patent No. 2,179, 707,. November ILL, i959.

RAUL B ERNHARDT.

It is hereby certified thaterror appears in the printed specificationy ofthe above numbered patent requiring correction as fol-lows: Page l', lsecond column, line 257 for the word "pin read pins; line 50, fory "and" reaciV Veno.; line A 514., for "packet" read pocket; line 575, for "grooves" read groove;

page 2, first column, line 6h, claim 2, after "casing" strike out the comma;

and second column, line 2?, claim LL, for "transferse" read transverse; line 5T, claim T, for "describing" read Comprising; vandv'that the said Letters Patent ,should be read with this correction therein that. theA same may conform to the record of the case in the Patent Office. f I

Signed. and sealed this 26th day of December, A.n D., 1959.

Henry ,Van Arsdale, A(Seal) Acting Commissioner of Patents.

Images