US873300A

US873300A - Vacuum-cleaner handle.

Info

Publication number: US873300A
Application number: US37234707A
Authority: US
Inventors: Alfred P Cranston
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-05-07
Filing date: 1907-05-07
Publication date: 1907-12-10
Anticipated expiration: 1924-12-10

Description

No. 878,300 I PATENTED DEC. 10, 1907. A. P. GRANSTON. VACUUM CLEANER HANDLE.

APPLICATION FILED MAY 7.1907.

ATTORNEKS UN ITED STATES PATENT OFFICE.

ALFRED P. GBANSTON, OF NEW YORK, N. Y.

. VACUUM-CLEANER HANDLE.

Specification of Letters Patent.

Patented Dec. 10, 1907.

Application filed May 7 1907- Serial No. 372.347.

The improvements of the present invention are particularly adapted for use in connection with that type of vacuum cleaning apparatus, which comprises a pump or suction device, having dust collecting means connected by a flexible hose with a portable handle or a sucker, which is moved over the floor or other surfaces to be cleaned.

Vacuum cleaner handles of the type indicated are usually formed of a light metal pipe having a mouth or suction slot at their lower end and having their upper end curved or bent to receive a flexible hose, which is connected with the pump. It is found in practice, that the upwardly moving stream of dust or grit laden air impinges against the metal pipe, at the curved upper end thereof, and soon wears a hole in the same, thereby destroying the usefulness of the handle and requiring a new handle. Furthermore, it is found in ractice, that where a metal handle or i e o the ty e indicated is em lo *ed, it is difficult to kno v just when the sur fade over which the device is pletely cleaned.

With the above premises in view, the objeot of the present invention is to improve the construction of vacuum cleanerhandles, principally in such a manner as to increase the period of their usefulness, by overcom mg or avoiding the effects of wear, and also to enable the operator using the vacuum cleaner to ins ect the dust laden air passing through the andle, so that he can determine when a surface has been properly cleaned. i

' With the foregoing and other objects in view, which will appear as the description proceeds, the inventionresides in the construction, combination and arrangement of parts and in the details hereinafter described and claimed, changes in the tion herein disc moved has been comrecise embodiment of invenosed can be made within the and useful Improvements in- .same.

lower metallic section 2,

it being understood that scope of the following claims without departin from the spirit of the invention.

n the accompanying drawing forming part of this specification, Figure 1,.is a longitudinal section, partly in elevation, through a vacuum cleaner handle constructed in accordance with the invention. Fig. 2, is a detail sectional view, showin a modification. Fig. 3, is a sectional view of another modification. Fig. 4, is a plan view of the construction shown in Fig. 3.

Referring to Fig. 1, the reference letter A indicates in a general manner the curved upper end of a vacuum cleaner handle, and

indicates a flexible pipe or hose, which is suitably connected with the upper end of handle A for conveying the dust laden air to a suitable dust collecting or settling device.

It is found in practice, that the dust or grit carried by the upwardly moving stream of air impinges against the curved upper end of the handle A, so as to wear through the For the purpose of materially overcoming this tendency to wear, the curved upper portion 1 of the handle A according to my invention is reinforced in any suitable manner, such as by thickening the same, as illustrated in Fig. 1, whereby the life of the handle is prolonged.

In the embodiment of the invention illustrated in Fig. 1, the handle A is formed of a and an upper section 3, which is deta'chably connected with the lower section 2 in any suitable manner, such as by' means of screw threads as indicated at 4. The upper section 3 is curved as shown in Fig. 3 and is reinforced at 1 as previously described. Furthermore, the upper section 3 preferably is formed of hard transparent material, such for example as glass, the vitreous character of which enables it to withstand the wear of the dust laden air to a great extent. By reason of its transparent character, the operator can watch the column of dust laden air through the section 3, and can thus determine by the absence of dust, when a surface has been properly cleaned. If the section 3 should become Worn through long detached from the lower metallic section 2, and a new section 3 substituted at small expense. In the construction shown in Fig. 1, the section 3, at its upper end is pro ided with screw threads 5 by means of which it service, it can be readily can be screwed into the end of'the flexible hose B.

In the modified construction. illustrated in Fig. 2, the glass section 3 is formed with a conical or tapered upper end 7, which is provided with corrugations, and is adapted to be thrust into the end of the hose B, as shown, so as to form a tight joint.

In the modified construction illustrated in Figs. 3 and 4, the curved upper end 8 of the handle is constructed of metal and is formed at the curved portion thereof with a rabbeted opening into which is'fitted a glass plate or window 9, which is thickened as shown, and is removably held in place in any suitable manner, such as by means of the catches 10, which are adapted to be rotated upon suitable pivoted pins or screws 11, whereby a new plate 9 can be inserted whenever the old one becomes worn. As the plate 9 preferably is formed of glass or other transparent material, it provides a sighting device to inspect the dust laden air, and also presents a hard surface to receive the wear of the dust or grit.

The improved handle of the present invention is strong, simple, durable and inexpensive in construction,'as well as thoroughly efficient in use.

What'is claimed is:

1. A vacuum cleaner handle reinforced at the portions of greatest wear.

2. A vacuum cleaner handle having its curved portions reinforced.

3. A vacuum cleaner handle having a detachable sighting device.

4. A vacuum cleaner handle having a curved detachable sighting device. 5. A vacuum cleaner handle having a reinforced transparent portion.

6. A vacuum cleaner handle having a detachable curved reinforced portion.

7. A vacuum cleaner handle comprising a metallic portion and curved transparent portion.

8. A vacuum cleaner handle having a metallic portion and a detachable curved transparent thickened portion, substantially as set'forth.

In testimony whereof, I have hereunto set r my hand in the presence of two subscribing witnesses.

ALFRED P. CRANSTON.

Witnesses:

0. L. MATTHEWS, V W. H. CRICH'ION-CLARKE.