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Publication numberUS847238 A
Publication typeGrant
Publication dateMar 12, 1907
Filing dateJul 8, 1905
Priority dateJul 8, 1905
Publication numberUS 847238 A, US 847238A, US-A-847238, US847238 A, US847238A
InventorsSamuel C Carroll
Original AssigneeSamuel C Carroll
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Ventilating system for vehicles.
US 847238 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)




PATENTED MAR. 12,1907.




PATENTED MAR. 12, 1907.

'. s c. CARROLL.




- nnrrnn entries earner ,orricn.


Specification of Letters Patent.

Patented March 12,1907.

7 Application filed July 8', 19%. seal No. 268,807.

To all whom it may concern:

Be it known that I, SAMUEL C. CARROLL, a citizen of the United States, residing at Dallas, Texas, have invented certain new and useful Improvements in Ventilating Systems 'for Vehicles, of which the following is a speciair-pump adapted to draw in the fresh air and expel the foul air, which the motion of the vehicles.

The term vehicle as employed in the accorn anying specification and claims isjinis operated by tQIM ed to include road-carriages, streetcars,.

railway-cars, cabins on boats, and closed ve-' hicles of any kind whatever.

Referring to the accompanying drawings, Figure 1 is a transverse section of a portion of a carriage, showing one form of my invention. Fig. 2 is a longitudinal section of the same. Fig. 3 is a section of a seat, showing the operation of the weight. Figs. 4 and 5 are details of the outlet-nozzle. Fig. 6 is a detail of the hood over the outletipe. Fig. 7 is a'sectional view of one en of a car, showing my invention as operated by a weight-motor. Fig. 8 is a detail of the weight-motor.

In carrying out my invention in its pre ferred form I utilize the swaying and bouncing movement of the vehicle caused by the unevenness of the road-bed or by the rapid 'motion of the carriage to operate an .air-

pump, whereby a circulation is maintained in the vehicle. One method of accomplishing this is that shown in Fig. 1 of the drawings in which I utilize the weight of the passenger,

in connection with the movement. of'the vehicle, to o erate the air-pump. The ordinary vehic e-seat is indicated at A, having a cushion a, supported by the usual base a. Interposed between the cushion a and the basefo is a .bellowsfwhicli may beof any desired construction, that shown'in the drawings consisting of a collapsible bag I), having the springs b to hold the same in a distended position. Connected to this bag or bellows is an inlet-pipe C, which extends through the wall of the vehicle, preferably at a point near the bottom; but it maybe connected with interior of the carriage.

' eter equal to that of said pipe.


and at its outer end with a screen 5 to exelude any foreign matter. A seconchor outlet pipe D is'also connected with the bag I) and extends upward to a point (Z near the top of the vehicle and then passes through the walls of the same to the outer atmosphere. This pipe is also provided with a check-valve d near its point of connection with the bag 12. At a point intermediate the ba or bellows and t e point of connection with the outer amosphere the pipe D is provided with an outlet-nozzle E, which is provided with a valve that maybe operated to close the pipe D to the outer amosphere and open it to t e The nozzle E may be of suitable construction but I prefer that shown in the drawings, which is in. the form of a cylindrical valve having an outer cylininder 6 formed in the pi e D and of a diam- This outer cylinder is open at the, top and bottom, as shown at e, and one end of the same projects out beyond the side of the pipe and has over the outer end thereof a cap or plate e, having a series ofopeningse therein. Journaled within. the cylinder e is a second or inner cylinder F provided with openings f, adapted to register with the o enings c of 'tle cylinder e. The outer end or? the cylinder F is also closed by a plate or cap 7, provided witha series of openings f, adapted to register with .the openings 6 of the cylinder e. The openings f and e of the cylinders and e are so arranged in relation to the penings e and f of said cylinders that'when t e openings e and fare in alinement to form a passage through the pipe D from the bag?) to the outeratmos here the openings e and f will be out of ainement and the pipe D cut off from communication with the interior of the vehicle, and vice versa.

The inner cylinder F is provided at its outer end with any suitable means forrevolving it, such as an outer cap or plate f, which has openings f 5 in alinement with the openings f 0fthe cylinder F and is rigidly com nected thereto in an suitable manner, as by a bolt f, so'that w en the cap 1" is turned the cylinder F will also be turned. The cap f 'may be rovided with projections or cor-- rugations to facilitate the turning of-the IIO ln the upper portion of the pipe D and near-where that pipe passes through the wail of the vehicle there is provided an opening G, which may have a cap or lip g, extending over the same and forming a funnel leading thereto. Where the end of the pipe D .eX tends through the wall of the vehicle into the outer atmosphere it is provided with an elongated hood ll, which extends for a considerable distance on either side of the. pipe end.

nately contracted and expanded, thereby drawing the fresh air through the pipe C and forcing it into the interior of the vehicle through the pi e D and nozzle E. At the same time the 'or *ard movement of the vehiclecauses the air to rush through the hood ll, past the end of the pipe I), creating a suction in the pipe I.) and drawing the warm air from the upper part of thc'vehicle through the opening G. ll" for any reason, such as the coolness of the air, it is desirable to exclude from the vehicle apart or all of the air drawn in by the bellows, the valve in the now zle l) may be turned to allow the proper amount of air to enter the vehicle and the remainder to pass through the pipe l) to the outer air.

l have also shownin these ligurcs a device whereby the bellows or air-pump may be operated when the seat is unoccupied or when it is undesirable to use the weight of the passenger for operating the same, lhisdevice con-. sists of a weight M, which is suspended under the seat from a universal joint, which maybe of any desired construction, that shown in the drawings consisting of a halland-sockct joint in, formed by cutting away the base oi the seat to form a semisphericalrecess'm, and providing the weight M with a rod mi, having a semispherical hearing or head m The upper edge of this semispherical head is so arranged that when the wcighth l is at rest it will be [lush with the upper surface of the base of the seat; but when the weight swings with the motion of the vehicle one edge ohthe head m will rise above the surface of the base and compress the bag I), which may he provided with stilicned portion 1) to more efl'ec- Lively compress the same. It will of course be understood that I may use either of the constructions described separately or that I may use both at the same time.

- To provide for ventilation when the vehi-.

tank 0, which may be located in any convenient. lace adjacent to the seat, that shown in. r

the rawing being located beneath the seat.

.This tank is provided with an outlet 0" for releasing the air and creating the'desired circalation or I may place a regulating-valve a in the pipe N and by opening the cut-oi? valve in pipe D allow the air from the tank to pass out through the pipe D and nozzle E.

' When it is desirable to apply the invention to vehicles in which it wouldbe impracticable to employ the construction hereinbefore dc scribed-as in stock-cars, fruit-cars, or in. passenger-cars running overa highly-improved road-bed I may employ a motor adapted to be actuated by the swaying motion of the vehicle .which is always present in rapidly moving vehicles. This motor may be employed to operate an air-pump in connection with a circulating device, such as-has already been describerhand it may also beemployed in connection with an air-compressor adapted to charge an air-tank while the vehicle is in motion, the air from such tank being utilized to keep up a circulation in the vehicle when the same is at rest. The type of motor which I prefer is that shown in Fig. 7.' This figure shows a section of a car having an apartment at one end in which the motor and fan are mounted. The motor there shown consists of a weight suspended by a universal joint from a cylindrical support P,

which is carried by the bracket Fitting over the cylindrical support P and sliding on the same is a cylindrical casing R, having at its lower end an. upwardly-iucli ied flange 1', against which boa rs a ring carried by the armsp, which in turn are supported on the stem p" of the weight P. Near the upper end 01'' the casing R is a projection r, carrying a spring-pressed pawl W A shaft S is journaled in the brackets Q and Q, and on this shaft is mounted a ratchet-wheel S, adapted to be engaged by'the pawl r upon the rise of the casing li. Also mounted on this shaft is a blower-fan U of ordinary construction, the outlet from which is connected by the pipe u with the storage-tank T, which may be located in any desirable place about the car, that shown in the drawings being secured beneath the body of the car. This storagetank is connected by the pipe t with a circulation system within-the car; but it may be desirable ior'the sake of-economy and con venience to connect this air-supply to the steam-heating pipes which are already in thecar, as it would not be necessary to use the two systems at the same time. ,Such connection may bemade by inserting the necessary .cut-offs v in the heating-pipes V V and II O sea-see connecting the air-pipe t to the flow-pipe V, which may be provided with one or more outlets within the car, or it may be connected at each seat by a pipe '0 with a ventilatingpipe, such as is shown at I) in Fig. 1. The

operation of the device will be readily understood. As the car sways back and forth the weight P is oscillated and the ring 29 forced against the flange r of the casing R, which slides u on the guide or support P, bringing the paw 7" into engagement with the ratchetwheel '5 and rotatingthe fan U, thereby forcing the air into the tank T.

The mechanism which I have shown for operating the fan from the weight is every simple one and does not form a part of my invention, it being understood that any suitable transmitting-gear maybe used and gearing interposed to turn the fan at any desired speed.

When it is desirable to dispense with the storage-tank and use the air direct from the tendin the saidvehicle near the top fan, this maybe doneby substituting an ordinary Ventilating-fan for the blower-fan, as shown in Fig. 8.

While primarily intended for use as a yen- 7 tilating system, my invention may be used fora variety of purposes whenever the rocking motion is present to operate the weightinletpipe extending from sai air-pump through the wall of said vehicle at a point near the bottom thereof, an outlet-pipe exfrom said pump throu 'h the wall of thereof, and a I. valve in said outlet-pipe intermediate the 1 ends thereof for connecting said pump with said vehicle, substantially as described.

3. In a vehicle the combination with aneither the outer atmosphere or the interior of qair-p'u'mp, means fh r operating the same and an inlet and an outlet pipe,'of a valve in said outlet-pipe comprising an outer cylinder extending"'across said pipe and beyond the periphery thereof, openings in the peri hery of said cylinder iir alinement with sai pipe and openings in the outer end of saidcylinder, an inner cylinder withinsaid outer cylinder,

openings in the periphery of said'inner eylinder' ada ted to register with thee innings in the per phery of said outer cyli i er, openings in the outer end of said inner cylinder i l t air-circulating system and the vehicle-seat, of

adapted to register'with the opening in the 6 5 end of said outer cylinder when the openings in the peripheries of said cylinders are out of alinement, and meansfor rotating .said inner' cylinder, substantially as described.

In a vehicle the combination with an air-circulating system, of an air-pump con.- nected therewith and placed. under the seat of the vehicle and adaptedto be operated by the weight of the passenger in connection with the motion of the vehicle, substantially as described. I

5. In a vehicle the combination with an air-circulating system, .of a bellows connected therewith and adapted to carry the weight of the passenger and to be operated by the rise and fall of said weight due to the motion of the vehicle, substantially as described.

6. In a vehicle the combination with an a bellows forming a part of said seat and con- 7 nected with said circulating system, said bellows being actuated by the movement of the passenger due to the motion of the vehicle, substantially as described.

7-. In a vehicle the combination with an air-circulating system, the. vehicle-seat and the cushion therefor, of a bellows located between said seat and said cushion and connected with said circulating system, said bel- 5 lows being actuated by the movement of'the passen er occupying. the seat due to the motion 0 the vehicle, substantially 'as described. w

8. In avehicle the combination with an air-circulating system and a two-part seat, of a collapsible bag located between the parts of said seat and connected with said circulating system, and springs for holding said bag in a distended position, said bag being actuated by the movement of the person cccn ying the seat due to the motion of the ve icle, substantially as described.

9. In a vehicle the combination with an inlet-pipe and an outletipe extending through the wall of said vehicle near the top thereof, of an elongated hood secured to said vehicle and. inclosing the end ofsaid outletpipel, said hood being of a depth e cal to the diameter of said outlet-pipe and of ess' diamloo eter at the center than at the ends thereof, 1

substantially as described.

1Q. In a vehicle the combination with an air-circulatin system and the vehicle-seat" of a bellows tormin a part otsaid seat connected with sai circuiating system, sa d bellows being actuated by the movement of the person occup ing seat-caused tyne Q motion of the vehicle and additional means actuated by the movement oi the iyehicl'e {for if actuating the bellows. 3.1. In a vehicle hllfitblffllittlilg system he vehicle-seat,

of a bellows forming a part of said seat and head carried by the seat, said head actuating connected with said circulating system, said the bellows when the weight oscillates. 1o bellows being actuated by the movement of In testimony whereof I aiiixmy signature the person occupying the seat caused by the in presence of two witnesses. motion of the vehicle and additional means SAMUEL C. CARROLL actuated by themoveinent of the vehicle Witnesses:

for actuating the bellows, said mcans con- HENRY E. COOPER,

sisting of a weight having; a sei'i'iisphcrical EDWARD L. REED.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2570162 *Jan 12, 1946Oct 2, 1951Kent Schwebs RobertRefrigerator car
US2664241 *Jun 22, 1951Dec 29, 1953Minno Life CorpCombined air pump and cushion
US6598251Jun 15, 2001Jul 29, 2003Hon Technology Inc.Body support system
US6687933Jun 14, 2002Feb 10, 2004Hon Technology, Inc.Body support system with energy dissipation means
US7364229 *Jun 30, 2005Apr 29, 2008Hwang-Pao LeeAutomatic ventilation device for chair
US20130106149 *Nov 2, 2011May 2, 2013I Shou UniversityHeat Ventilating Chair
Cooperative ClassificationB60H1/00371, B61D27/0018