US1008205A - Vacuum cleaning apparatus. - Google Patents

Description

WIT/V SSES: I INVENTOR.

J. SGHIRRA. VACUUM CLEANING APPARATUS.

- APPLIGATION FILED MAY 10, 1911. 1,008,205.

2 SHEETS-SHEET 1.

' A TTQRNE 55,

Pafbented Nov. 7, 1 911.

J. SOHIRRA. VACUUM CLEANING APPARATUS. APPLICATION FILED MAY 10 Patented Nov. '7, 1911.

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2 SHEETSSHEET 2.

ATTORNEY PAEENT crates,

JULIUS SCI-HERA, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR OE ONE-EIGHTH T HENRY J. THOMAS AND ONE-FOURTH T0 GEORGE S. WILSON, BOTH 0F PITTSBURGH,

PENNSYLVANIA.

epecrfi'cation of Letters Patent.

VACUUM CLEANING- AEPAELATUS.

Patented Nov. 191 ll.

Application filed may 10, 1911. Serial E0. 626.214,

The'principal object of my invention is to provide a device of this character adapted for hand manipulation and in which a maximum suction and discharge action is provided with a relatively small flexible device.

Aturther object of the invention is to provide a device of this character in which the flexible portion of the device is moved into and out of an annular member which carries the inlet and discharge controlling devices. the conformation of the flexible portion being such as to permit the movable end to practically pass within the permanent annulus position at the opposite end when the device is collapsed, to protect the flexible portion against damage.

A further objectis to provide a device of this character in which the inlet and discharge openings are positioned oft-center,

the device being provided with means whereby it may be removably or permanently secured to'a support which is adapted to contact with the surface to be cleaned.

Other and further objects of the invention are to provide a device of this character which is neat and attractive in appearance. durable in construction, simple and etiicientl in operation. which may be readily attached to the handle of a household utensil, and which can be manufactured at a relatively low ost.

To these and other ends. the natuieof which will be readily understood as the invention is hereinafter disclosed, my invention consists in the improved construction and combination of parts, illustrated in the accompanying drawings, and particularly pointed out in the appended claims.

To the accompanying drawings, in which similar reference characters indicate similar parts in each of the views: Figure 1 is a perspective view of a vacuum cleaner apparatus in which my invention forms a part, F ig. 2- is a central longitudinal sectional view of the parts shown in Fig. 1, the bellows being shown in its expanded position, Fig. 3 is a view of a portion'ofthe parts shown in Fig. 2, with the bellows collapsed, Fig. i is a perspective view of the parts shown in Fig. 3, Fig. 5 is a cross sectional view taken on the lineV-V of Fig. 2, Fig. 6 is a detail view of the intermediate supporting member for the bellows.- Fig. 7 is a view of the lower part of the suction device, and showing adifierent form of connection of the suction head and apparatus carrier.

The suction device shown herein is that employed in connection with the invention disclosed in my companion application filed February 9th, 1911, Serial No. 607,456, in which the device is shown in operative relation to and as a cleaning attachment for a carpet sweeper, Fig. 7 of this application corresponding tot-he showing presented in said companion application.

Referring more particularly to Fig. 2, the present invention comprises a suction device, a suction head, and a dust collecting device, the suction device and dust collecting device being preferably arranged in permanent combination, while the suction head is detachable, the particular form of head employed being dependent upon the use to which the cleaning apparatus is to be put. For instance, the head shown in Fig; 2 is adapted to be employed for cleaning small spaces, furniture, etc., while the head shown in my companion application heretofore referred to. and a portion of the connections of which is shown in Fig. 7, is adapted to be employed in connection with a carpet sweeper, the inlet to the suction device being arranged relativel to the point of support of such device so as to permit the handle. where the latter is a part of a carpet sweep er, to be employed in connection with either type of suction head.

The handle,-indicated at 10 and which 'forms the support for the suction device, is

preferably rovided at its forward end with means for attaching'itto the cross brace of a carpet. six'ecpcr (not shown), the means llln' losld being? the threaded. projecting portion it.

The suction device, preferably in the form of a hollows collapsible axially is perinanently secured. adjacent to the forward end of the handle by means ol an end cap 12, this cap being in the i'oriu of a plate l3 prefcrably slightly dish-s u and of circular contour, said plate hcin provided with a cylindrical annulus l lsccisrcd to the plate in any jjltfi'l lflltul niani'icr and. which projccts rearwardly from the plate suitable distance, and 'lorniing the support for the forward end of the flexible bellows structure, the annulus being preferably provided with circannl ercntial beads 15. The plate 13 provided amiiroxiun'ite its center with an opening, and a. lorwarijlly extending cylindrical projection i6 adapted to fit over the forward end of the handle 10 and fixedly connected to the handle by suitable means such.

as a pin. 1?. Hold plate also provided with an inlet in the form ol. a cylindrical projection 18 which is adapted to receive the connection "from the suction head, this inlet bcinc: arranged oil-center, thc port being; controlledL l valve 1), preferably a flap valve mounted on the inner face of the plate and adapted to close the port when the lwllows is moved in one tlll'fitjl'lfiil. Said plate further provided with a projection 30 having its lt'orward end provided with a configuration colnplcinental to that carried by.

the open end of a dust collector 2i, preterably in the form of a bag, the connection shown. being by a screw threaded connection.

Zlhc outlet port provided by the projection 20, is adapted to be closed by a valve 22, preferably mounted on the outer face of the plate, but which may he obviously positioned at any point within the passageway formed by the projection 20,

Q3 designates the Flexible portion of the suction device which ma Y be of any suitable material, and is prct'era ly circular and til pered from its :lorivard end toward its rear end, as best shown in Fig. 2, the rear end being secured to an annular collar 24; having a configuration somewhat similar to that of the end cap 12 but mounted to slide freely longitiulinally of the handle, the annulus facing the annulus 14, said collar, however, being of less diameter than the end cap 12. Inasmuch as the collaris adapted to be freely moved on the handle, I preferably provide a suitable packing within the collar and surrounding the handle, said packing being indicated conveniently at 25 being supported by the part of the collar and movable with the collar longitudinally of the handle, this packing being employed for the purpose of preventing material leakage of air from the bellows Willi) the latter is being collapsed. Rubstantially midway of the length of the arrangement oi parts above described, it

will be 5. v seen that when the suction cerico in position shown Fig. 2;, in. which the flexible portion or bellows 23 is shown as expanded, the collar will be positioned at its maximuni'distance from the end cap 12, the bellows having its folds practically straightened out; this position is assumed attbc end of the suction opcration, the movement of the collar to this position providing the necessary suction for carrying the dust and dirt into the interior of the suction device and by reason of the metallic, annulus 14 located at the point of inlet to this device, the heavier particles will not be liable to be carried into the flexible portion to any material extent, so that it the bellows collapsed with the necessary formation or tolds therein, these heavy particlcs will not in position to materially allcct the material of the flexible portion. A movement of the collar 24- toward the end cap '19. by the use of the sleeve 27, will cause the flexible portion to gradually form in tolds on opposite sides of the spider 26, and will gradi-ially be moved into the space within the annulus to the position shown in Fig. 3, the spider 26 practically passing in close proximity to the inner face of the plate '13, with that portion of the bellows between the spider and the end cap practi rally reversed, the whole giving the appearance oi being turned inside out, the parts, hmvcvcr, being so positioned that the collar 24- lies entirely within the space formed by the annulus 14, practically carrying all of the flexible portion within the end trap. This movement of the bellows has closed the valve 19 and opened the valve 22, thereby carrying the material taken up through the suction head into the dust collectin bag or pocket. l/Vhen the movement of t e collar 24; is again reversed to expand the bellows, that portion of the bellows in rear off the spider 26 first expands until the spider is drawn out of the end cap the forward portion of the bellows being gradually drawn out after the spider has left its position within such cap. This particular construction provides for a maximum. suction effect with a minimum length in the flexi le portion of the suction device, the fact that the collar 24 passes entirely within the end cap,

providing an additional length 0t movementmore the suction device need not be of excessive in cross section, the particular tapered shape of thehellows with the ability to collapse to a position such as shown in big. 3, rendering a relatively large cross sectional area unnecessary.

-\s heretofore pointed out, the suction device just described is that disclosed in my companion application above referred to, and this construction permits of the employment of different types of suction heads. T he type shown in my companion application is that including a flexible connection 28 which is simply slipped over the projection 18, as shown in Fig. 7, the carpet sweeper or other support for the attachment and to which the handle is firmly secured,

providing the necessary stability to the parts, the suction head being carried by the body of the carpet sweeper.

The construction of the suction head shown in the present drawings diflers from that disclosed in Fig. 7, in that the connection for the'head is not flexible, being in the form of a tubular member 29 to the forward end of which the suction head 30 is secured, the head having the member 31 positioned to axially alinc with the handle and adapted to extend over the projection 16 and acting as a continuation of thehandle to support the suction head. By this. construction it will be readily seen that the suction device is applicable tor-use either with a flexible or non-flexible connection with the suction head, the particular location of the inlet ability of the several types of heads and still provide the actual support by the forward end of the handle 10.

The particular ability to place the parts in the collapsed position shown and the relative y small size of the suction device with its maximum suction effect are positive advantages resulting from the construct on shown; in addition, specific advantages have heretofore been pointed out.

While l have herein shown and disclosed one way in which my in ention may be carried into eflect, I am aware that changes and modifications therein may be necessary to meet the various exigencies of use, and I reserve the right to make. any and all such changes and modifications as maybe found necessary in -so iar they may fall within the spirit: and scope of the invention as hereinafter pointed out in the claims.

Having thus described my inventiomwhat I claim as new is:- I

1. In vacuum cleaning apparatus, a saction device and a support. said device having ".t-z' 0" end stzhstantially-r"rid and percured to the sup v and also r l movable longitudinally ==d portions. ha ing d movable end and flexible connection, when the device is col-' lapsed, being housed within the forward end portion.

2. In vacuum cleaning apparatus, a suction device and a support, said support extending axially of said device, said device having its forward end substantially-rigid and permanently secured to the support, and also having its other end movable longitudinally of the support, said end portions having a flexible connection, said movable end and flexible connection, when the device is collapsed, being housed within the forward end portion. I i

3. In vacuum cleaning apparatus, a suction device and a support, said support extending axially of and t-hroughsaiddevice, said device having its'forward end substantially-rigid and permanently secured to the support, and also having its other end movable longitudinally of the support, said end i portions having a flexibleconnection, said movable end and flexible connection, when the device is collapsed, being housed'within the forward end portion. I 4. In vacuum cleaning apparatus, a suction device and a support, said support extending axially of said device, said device having a substantially-rigid cup-shapedforward endfpermanently secured to the support, a flexible member secured to the face ot the wall of said fOI'WflId I1d,flI1d a substantially-rigid end mounted to slide longitudinally of said support to which the other end of'said flexible connection is connected, said movable end and flexible. connection being housed within the cup-shaped end when the device is collapsed.

'5. In vacuum cleaning apparatus, a suction device and a support, said support ex tending axially of said device, said device having asubstantially-rigid cup-shaped forward end permanently secured to the support, a. flexible member secured to the face of the wall of'sa'id forward end, and a substantially-rigid end mounted to slide longitudinally of said support to which the other end of said flexible connection is connected,

a supporting device. secured to said flexible connection'within and intermediate the ends of said. connection, said movable end, the flexible connection and said supporting device, being housed within the cup-shaped end when the suction device is collapsed.

6. In vacuum cleaning apparatus, a suetion device and a support, said support extending axially of said device, said device having its forward end secured to the support, said end carrying inletand outlet ports, sair' inlet port being positioned off-center.

7. in vacuum cleaning apparatus, a suc tion device and a support. said support extending axially of said device and projecting forwardlv beyond the forward end of said dovice and adapted to connect the device to 130 a c1 21 flexible connect-i011 and. support. extending end ens, Mm forward end approznmutelv cup-shaped and meter than other and par- 25 secured, t0 said portion being rt, said. 37 t .B @1161 so I d 5116 z'nevamble Qsed Within the cupdevice is 001 u uzliOn Mull;

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