US883464A - Blower. - Google Patents

Description

No. 883,464. PATENTED MAR. 31, 1908. G. W. & W. H. LEI MAN.

BLOWER. APPLICATION FILED JULY 13, 1906.

3 SHEETS-SHEET 1.

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No. 883,464. PATENTED MAR. 31, 1908. G. W. & W. H. LEIMAN.

BLOWER.

APPLICATION FILED JULY 13, 1906.

3 SHEETS-SHEET 2.

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m 5 a Q w\ I I a I 1i 511717115555: hgelllbrs I 4, mama-44 U an s TA'llEfi union GEORGE W. LEIMAN AND WILLIAM H. LEIMAN, OF NEW YORK,

BLOWER.

No. sass-ea! I Specification of Letters Patent.

Batented March s1, isoe.

' Application filed July 13, 19%, serial N 26,019.

To. all whom it may ear/ eem:

Pie it known that we, Gnoaen W. Lamas and WrLLrAi-t H. Lamas, citizens, of the UnitedStates, and residents of the borough Qi Manhattan, in the city and State of New York, have invented a new and useful Iss9 provement in Blowers, of which the follow mg is a specification,

Gurinvention relates to a blower. The object is to provide a aim is and oldestive blower in which the fan blades. shall be positively held against the inner Wa of the yl nder whether the machine be in operation or not and whatever the rate of speed of the machine so that there will be no "out-throw of the blades at or near the time of starting and the consequent noise and possible injury thereby avoided i A further object is to provide simple means for maintaining a supply of 'oil in the haft bearmgs.v in the accompanying drawings, Figure 1 is a view of the blower no side elevation, one

I of thecylinder heads being removed to show the parts therein, F1 21s a view in transverse section in the p ans of the line A-A of Fig. 1, one end of the cylinder and the bearin box and cam fixed to. the head of the cylin er being shown in elevation, Fig. 3 is a section in the plane of the line B-B 'of Fig. 2, Fig. 4 is a artial view in perspective of the fan or bla e support, Fi 5 is a view in detail of one of the fans or b ades.

The cylinder is denoted by 1 and its heads by 2 and. 3. A shaft 4 extends eccentrically through the cylinder 1 passing through the heads 2 and 3 and through suitable bearings in oil receptacles 5 and 6 connected to or formed integral with the outer faces of the cylinder heads 2 and 3'.

To the shaft 4, the fan or blade support 7 is secured in any well known or a proved manner, for instance, by a'feather an groove connecting its hub with the shaft 4, the support 7 being cylindrical in form and provided on its exterior face atsuitable intervals with open-sockets 8 for thereception of the blade pmtles 9, the mouths of the sockets being contracted as shown for the passage of'the neck 10 of the blade and the socket 8 itself being of sufficient size to permit a series of roller bearings 11 to be inserted between the length substantially equal to that of the hinge pintle 9 and the interior of the socket 8; These roller bearings 11 consist of a series of small rollers preferably having a socket 8 and they are held circumferentially in position by the annular hubs 12 of the blade regulating dogs.

The rollers 11 are held endwise in osition betiween the opposite heads of the cy inder 2 an 3.

' The ring hubs 120i the bladeregulating dogs are let into the ends of the blade sup port 7 a distance equal to. their thickness and consist of a branch 13 extending inwardly irornthehub 12; toward the shaft i and a branch 14L- extending thence outwardly through a narrow slot 15 in-theend of the support 7 into engagement with the innerface of the blade 16.

We have shown two. blade regulating dogs for each of the blades, one at each end and symmetrically arranged and this arrange ment we prefer as it distributes the pressure evenly upon the opposite sides of the blade but it is obvious that the blade regulating dogs at one end of the blade might be omitted and those at one end only be employed to keep the blades in position.

At opposite ends of the cylinder 1 earns 17 and 18 are located and -fixed to the interior faces of the cylinder heads 2 and 3, the said earns surrounding the shaft 4 and so. placed that they will hold the blade regulating dogs,

by contact with the knees of the dogs, pressed outwardly to just a sufficient extent to hold the free ends of the blades or fans in contact with the interior curved surface of the c linder throu bout the entire revolution of t e shaft and t e blades attached thereto.

Air is admitted to the cylinder 1 through an inlet, 19 and is forced from the cylinder through anqoutlet 20. cylinder may be oiled as required from time to time throu h an oil duct 21 closed by a plug 22 and oi may be sup lied to the shaft earings by keeping a supp y of oil in the oil rece tacles 5 and 6 through a feed opening 23, t e oil being lifted from the receptacles 5 and 6 in such small quantitiesas may be desired and applied to the shaft 4 b means of rings 24, 25, hung loosely on the s aft 4. It

is to be understood that thereceptacle 6 is provided with oil transmitting rings similar to the rings 24, 25, for lubricating the shaft bearings at that end.

The shaft is provided with suitable fast The interior of the v .terposed Washer 30. die

tively held against the inner curved surface of the cylinder by the several blade regulating dogs, the said dogs traveling around on the curved surface of the cams which, in turn, are fixed to the interior faces of the cylinder heads. These blade regulating dogs have the additional function of holding the rollers of the bearings circumferentially in position on the pintles of the blades and the blower operates with very little noise and very slight wear.

To revent the oil from bein sucked from the oi boxes throu h the shaft earing to the interior of the blade support 7 or the escape of air from within, we rovide sprin actuated washers surrounding the sha t and ressing outwardly against the cams 17, 18.

ach washer referably consists of a pin"- rality of metal disks 28, 29, separated by a disk 30 of leather or other suitable tough yieldin material, the metal disks being prefera lyfastened together through the inv The combination of s thus formed is, ressed outwardly by means of an interpose spring 31, referably a coil sprin surrounding the shaf ii between the hub of t e support 7 and the washer.

What we claim 1s:

1. The combination with a cylinder, a shaft extending through the cylinder and swingin blades indirectly connected with the sha t, of roller bearings for the blades and blade regulating dogs arranged to hold the roller bearings in position and a cam for operating the blade regulating dogs.

2. The combination with a cylind'er, a shaft extending through the cylinder and blade su port eccentrically located therein swinging blades connected with the shaft, of blade regulating dogs hinged concentric with the blades and fixed cams for operating 4 the dogs to regulate the positions of the blades during the rotary movement of the a shaft.

3. The combination with a cylinder, a

and bla es hinged to the, support, the said support having its ends recessed, of blade regulating dogs hinged to the blade sup ort and extending through said recessed en s of the su port and fixed cams in osition to engage tiie dogs to positively hol the blades in position.

4. The combination with the cylinder, the

blade support, the blades and the shaft connected with the blade support and extending 5 through the cylinder, of a washer com rising a plurality of disks, one of said disks aving a substantially non-yielding bearing face to close the joint between the shaft and the cylinder and another oi said disks being of elas- -tic material and a spring in position to bear against the elastic disk and through said elastic disk force the joint-closing-disk toward the joint.

In testimony, that we claim the foregoing G as our invention, we have signed our names in presence of two witnesses, this June 21st 1906.

Witnesses:

FREDK. HAYNES, C. S. SUNDGREN.

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