US1169527A

US1169527A - Vacuum-cleaner.

Info

Publication number: US1169527A
Application number: US2465115A
Authority: US
Inventors: Charles A Boyer
Original assignee: HUGRO Manufacturing Co
Current assignee: HUGRO MANUFACTURING Co
Priority date: 1915-04-29
Filing date: 1915-04-29
Publication date: 1916-01-25
Anticipated expiration: 1933-01-25

Description

C. A. BOYER.

VACUUM CLEANER.

APPLICATION m50 APR. 29. 1915.

Patented Jan. 25, 1916.

CHARLES A. BOYER, OF WARSAW, INDIANA, ASSIGNOR T HUGRO MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

VACUUM-CLEANER.

Specification of Letters Patent.

Patented Jan. 25, 1916.

Application filed Apri129, 1915. Serial No. 24,651.

To all whom t may concern:

Be it known that I, CHARLES A. BOYER, a citizen of the United States of America, and resident of Warsaw, Kosciusko county,

Indiana, have invented a certain new and useful Improvement in Vacuum-Cleaners, of which the .following is a specification.

My invention relates to improvements in vacuum cleaners, and has more particular reference to improvements in means for detachably connecting the suction nozzle to the body of the cleaner.

One of the objects of my invention is to provide an improved device of this character which will besimple, durable and reliable in construction, and effective and eiiicient in operation, and inexpensive to manufacture.

Other objects of my invention will appear hereinafter.

My invention consists in the features of novelty exemplified in the construction, combination, and arrangement of parts hereinafter described, shown in the accompanying drawings and more particularly set forth in the appended claims.

Referring to the drawings, Figure'1 is a view in side elevation of the forward end portion of a vacuum cleaner embodying my invention and, Fig. 2 is a top plan view of the structure shown in Fig. l.

In the drawings I have illustrated my invention in connection with a vacuum cleaner of the type shown constituting the subjectmatter of my co-pending application, Serial No. 871,912, filed Nov. 13, 1914, and reference may be had to said application concerning the construction and operation of said machine. In the drawings I have shown the forward nozzle end portion of the vacuum cleaner casing A. In structures of this character a nozzle B is generally positioned at the forward end of the casing and arranged to contact with the Hoor as the machine is moved to and fro. The nozzles are provided with a passage (not shown) through which the dust and particles from the floor are. drawn by vacuum creating mechanism (not shown) contained within the 0 casing. Within the casing is means, usually a foraminous bag, for screening the dust from the air which comes through the nozzle. This dust screen gradually accumulates a quantity of dust and must be cleaned 5 every so often. On this account it is usually positioned just behind theintake nozzle and 1s made removable. The nozzle is therefore generally arranged ,so that it may be entirely detached from the casing or removed from its operative position to permit the dust `bags removal or replacement. In the present case the nozzle is hinged to the casing in such manner that it may be swung away therefrom, as shown inv dotted lines in Fig. 1. Adjacent the ends of the'nozzle it has two rearwardly extending lugs 1 which are pivoted or hinged at 2 to the casing. This nozzle however must be locked or maintalned in position when the machine is in operation and I therefore provide a latch or lock at each end of the nozzle. These latches are in the form of arms or levers 3 which have curved open-ended cam slots or notches fl adapted to coperate with small outstandlng lugs or projections 5. The lugs are preferably formed up on the ends of plates 6 which are screwed or riveted to the side walls of the casing and they have curved surfaces which conform to the curvature of the notches or cam slots with which they cooperate. The latch levers are pivotally carried by the nozzle, and their cam slots are so formed that as the levers are rotated downwardly 'the cam slots operating on the lugs 5 act to draw the nozzle in gradually tightening engagement with its seat. The lugs 5 and the cam slots are positioned close to the pivotal points of the latch levers and these levers extend considerably rearwardly so that sufficient leverage is provided to conveniently operate the latches. At its rear end each latch has an outstanding ear 7 forming a convenient finger piece for the operator.

rlhelatch levers are pivoted at 8 to the rearwardly extending end portions of substantially L-shaped members C carried by the nozzle. These members are securely fastened at 9 to the forward face of the nozzle at some distance in from the ends of the nozzle. The portions 9 of said members which are fastened to the nozzle, by means of screws or otherwise, lie flat against the nozzle but the remaining portions of said members are not in contact with the nozzle; that is the portions 10 are bent at an angle to the portions 9 so that they are spaced from the nozzle, and these portions l0 have their outer ends bent forwardly to form parts 11 to which the latch levers are pivoted. This arrangement thus interposes yielding connections between the latch levers and the nozzle, which in this case is due to the resiliency of the portions 10 of the L-shaped members. The latch levers will then exert a yielding clam in action on the nozzle to hold the nozzle rm y, although yieldin'gly in position. This allows the nozzle to become adjusted to any irregularities in the structure either due to inaccuracies of manufacture or warping of the parts, and thus` an air tight joint can be maintained between the casing and nozzle. These advantages are also obtained because each latch or clamp 1s lndependent of the other andy each acts on its corresponding end 'of the nozzle.

Another advantage of my construction is that the nozzle is permanently attached to the sweeper body, whereby all trouble due to mislaying the nozzle is avoided. It will be further seen that by hinging the nozzle to the casing and attaching the latching or cam-carrying levers to the nozzle, the placing of the nozzle in position for operation is simplified, in that all the operator has to do is to take hold of the two cam levers and swing the nozzle over onto the end face of the casing and, practically with a continuation of the same movement, swing the levers into cam-locking engagementwiththe keeper lugs on the sides of the casing; and this arrangement of parts also facilitates quick removal of the nozzle from the end face of the casing in that all the operator has to do is to throw up both levers and thus release the nozzle and cause it to gravitate to position at one side of the casing entirely out of the way of the front end-face of the casing. It will be seen also that by hinging the nozzle to the casing at one ofthe forward (preferably the lower) corners of the casing, with the pivots of the hinges having their axes lying parallel with said end face, the nozzle, when released, will swing entirely away from the end face, that is,

to one side of the casing, thereby giving free access to the dust bag. By hinging the nozzle to the extreme front lower corner of the casing, it will, when released by the cam levers, swing around underneath the casing, entirely out of the way.

What I'claim is:

1 The combination of a vacuum cleaner caslng, a nozzle pivoted to the front lower corners thereof and extending across the end of the casing, a pair of straps fastened to the front face of the nozzle, each strap having a resilient portion extending beyond the ad] acent end of the nozzle, this outwardly-extending part having a' rearward extension lying close to the end of the nozzle, a lug fastened to the casing at each side thereof near the rear end of said spring extension, and a lever pivoted on each of said extensions on an axis parallel with the axis of the nozzle hinges, each of theselevers having a cam slot opening downwardly, th'e cam surface of the slot facing forwardly, for the purpose set forth.

2. The combination of a vacuum cleaner casing, a nozzle pivoted to the front lower corners thereof and extending across the end of the casing, a pair of straps fastened to the front face of the nozzle, each strap having a resilient portion extending beyond the adjacent end of the nozzle, this outwardlyextending part having a rearward extension lying close to the end of the nozzle, a lug fas-4 tened to the casing at each side thereof near the rear end of said spring extension, and a lever ivoted on each of said extensions on an axls parallel with the axis of the nozzle hinges, each of these levers having cam means for engagement with the aforesaid igned by me at Warsaw, Ind., this 21 day of April, 1915.

CHARLES A. BOYER. Witnesses:

ADAM S'roUr, HAzEL GROVE.