US313415A

US313415A - Gustave gbeikdl

Info

Publication number: US313415A
Authority: US
Publication date: 1885-03-03
Anticipated expiration: 1902-03-03

Description

G; GREINDL. ROTARY PUMP.

(No Model.)

Patented Mar. 3, 1885.

Jive/afar.

N. PETEps, Pmwumo u her. Washingiom D. C.

NlTED STATES GUSTAVE GREINDL, OF BRUSSELS, BELGIUM.

ROTARY PUMP.

SPECIFICATION forming part of Letters Patent No. 313,415, dated March 3, 1885.

Application filed March 7, 1884. (No model.) Patented in France Apr l 4, 1883, No. 154.670; in Belgium April 7. [853,

No. (H.015, and in England April 1;, 185.5, No.1,8t8.

To aZZ whom, it may concern/.-

Be it known that I, Baron GUSTAVE GREINDL, a citizen of Belgium, residing at Brussels, in the Kingdom of Belgium, have invented new and useful Improvements in Ed tary Pumps, of which the following is aspecifio'ation.

This invention has reference to rotary pumps and other rotary apparatus of the system known as Greindls. This system is described and illustrated in the specification forming part of Letters Patent of the United States No. 152,904, granted to me July 14, 1874. The only serious objection that has been made to the apparatus as therein described is the difficulty of repairing the casing or body of the pump, the wings which take the place of a piston, or the other parts when worn or deteriorated by use-for example, in movingliquids ofa corrosivenature or charged with solid matters in suspension.

To overcome this difficulty is the principal object of the invention.

To this end it consists, first, in dividing the casing or body into two or more sections, the dividing lines extending across the said casing or body parallel with or in the same general direction as the shafts of the rotating wheels inside.

It also consists in providing the casing or body, or one or more of the sections thereof, with a detachable or removable lining.

It consists, thirdly, in providing the rotary part of the apparatus with removable and renewable shoes or coverings.

Furthermore, the invention comprises certain special constructions and combinations of parts hereinafter set forth, whereby the difficulty above spoken of is to a great extent avoided, or other advantages are secured.

The accompanying drawings illustrate apparatus constructed in accordance with the invention.

Figure l is a vertical longitudinal section of one of the improved pumps having a wheel with two driving wings or palettes; Fig. 2, a partial (one-halt) plan View of the same; Fig. 3, a vertical longitudinal section of another form of pump having a wheel with four drivhalf) cross-section of the same; and Figs. 5, 6, 7, 8, and 9 detail views.

A is the casing or body of the pump divided at the lines a into sections. (three, as shown in Fig. 1; two, as shown in Fig. 3.) The sections are flanged, and are fastened together by bolts or by other suitable means. The suction and discharge openings are formed, as shown, in different sections. Inside the casing or body are the two wheels, B 0, one, B, provided with driving wings or palettes, the other, 0, having recesses to receive the said wings or palettes as they revolve. As customary, the two wheels are connected by gearing, (not shown,) which turn them inopposite directions. the recessed wheel 0 at twice the speed of the winged wheel B.

In Fig. 1 the casing or body is shown provided with a removable lining, D, where the wheel 0 or the wings of the wheel B rub against the same. As shown, the lining is held in place by tongues b of dovetail form fitting in corresponding grooves in the body-sections; but other fastening means could be used. The lining is divided at the lines a in the same manner as the body, but this is not necessary.

It is evident that the removable lining could be applied to a casing or body made in one piece, as described in the aforesaid patent.

The arrangement with four wings to the wheel B has this advantage over the two-wing arrangement, that it is only necessary to make a close fit between the wings or palettes and the inside of the casing or body during a quarter of a revolution instead of a half-revolution, as in the arrangement of Fig/ 1. This part only, therefore, will be exposed to wear; and it will suffice to remove and replace the corresponding section of the casing or body, which, as shown, is the upper section.

The wings or palettes in all the figures are provided with removable and replaceable shoes or facings E, which are shown as being fastened in place in different ways. The righthand wing in Fig. 1 and top wing in Fig. 5 have the shoe or lacing held in place by tongues of dovetail form fitting in grooves in the end ofthe body ofthe wing. In the left-hand wing, Fig. l, and the bottom wing in Fig. 5 the shoes 50 ing wings or palettes; Fig. 4, a partial (one- E are provided with adovetail groove, which xco fits over the correspondingly-shaped end of the a rotary pump such as shown in my aforesaid body of the wing, and also withatongue, which fits in a groove'in the end of the wing. Screws 0, which pass through the middle of the shoe, where it is thickened by the aforesaid tongue, and are screwed into the wing, serve as an additional means of holding the shoe in place.

In the wings of Figs. 3and 4and the bottom wing of Fig. 5 the shoes are like those last described, except that, being made heavier, itis not necessary to thicken them by a tongue in the middle. They are held in place also by screws 0.

The recessed wheels Gin all the figures have shoes or facings F where said wheels rub against the casing. These shoes or facings are held in place by the same means as-described for the shoes E or by similar means. It is obvious, however, that they, as wellasthe shoes on the driving-wings, may be secured in place by other means. A facing of anti friction metal may be cast in place.

Modifications may be inadein the details of construction without departing from the spirit of theinvention, and parts of the invention may be used separately.

Having now explained the invention and the manner of carrying the same into effect, I

would observe, in conclusion, that I claim in patent of July 14, 1884, and as an improvement thereon, the following:

1. The casing divided as described, and provided with the removable and renewable lining. substantially as set forth.

'2. The casing divided as described, in combination with the inclosed winged and recessed wheels,the winged wheels being provided with removable and renewable shoes or facings, substantially as set forth.

3. The casing divided as described, in combination with'the inclosed winged and recessed wheels, the recessed wheels being provided with the detachable and renewable'facings,

G. GREINDL.

\Vitnesses:

R. S. KIRKPATRICK, H. T. ErIiIRKPATRIOK.