US1208351A - Vacuum floor-cleaner. - Google Patents

Description

. E. IVIOORHED.

VACUUM FLOOR CLEANER. nPPLlcAnoN miv 1:11.23. 191s.

3 SHEETS-SHEET I.

Arret.

A. ,MOORHEAIL VACUUM FLOOR CLEANER.

APPLICATION FILED FEB. 23. I9Ia.

/I/ vE/I/ 7m? Ai E. MUD/@HEAD A. E. MOORHEAD.

VACUUM FLOOR CLEANER.

APPLICATloN FILED Ha. 23. |916.

Pmbmt Dec. 112, 1916.

a SHEETS-SHEET 3.

i a if atnnn'r n; noonnnan, or san rnanrsco, c amronnra.

' vacuum rLoon-crnannn.

v Specification of Letters Patent.

Patented lDec 12, 1918.

application ined February 23, 1ere. serial no. 79,808.

To all whom t may concern:

Be it known that ll, ALBERT E. MooRHnAD,

- a citizen of the United States, residing at @ne object of the present invention is to provide a domestic vacuum door cleaner of simple construction and compact in form by which the carpets are thoroughly beaten and the dust loosened therefrom at the same time applying suction to withdraw the dust from the carpet.

A further object 1s to provide such a' vacuum floor sweeper having frictional means for disturbing the dust and thus rendering it easier to be withdrawn by the suc- I tion device.

A further object is to p-rovide means whereby the above described device for nie-- chanically disturbing the dust can be put out of action when desired.

ln the accompanying drawings, Figure 1 is a broken rear viewl of my improved vacuum floor cleaner; Fig. 2 is a sectional view thereof; Fig.- 3 is a plan vewthereof, Va motor and fans being removed;.lt`ig. Ztis an end view thereof; Fig. 5 is a vertical section thereof, taken close to one end; Fig. 6 is a section thereof through a fan; Fig. 7

is a section thereof through'the middle, a

motor being shown in end elevation and a Harige being broken; Fig. 8 is a detail siectional view of va handle.

Referring to the drawing, 1 indicates rubber covered rollers upon which the vacuum cleaner can travel, mounted on shafts 27 having bearings in end plates 3, which are securedby screws 4t tov the ends of transversely extending base blocks`5, upon which is supported an electric motor 6, having anges 7 and a base 8, secured by screws iny the screw holes 9 of the blocks 5. Secured to said flanges by screws .10` are housing sec-l tions 11, for containin centrifugal `fans 12" secured Aon the motor aft 'at opposite ends of the motor, the upper surfaces of the base blocks 5 being concave, as shown at 13, to

receive the fans. Each fan .has inner and outer side walls 14, 15, and vanes. 16 extending kradially from lthe hub of the fan and connected to said side walls. rlhe vanes 16 are cut away on their inner edges to sur- The outer round the ends of the motor. side walls are formed at the center with inlet openings 17 to admit the dust-laden air to the fan. l A

The'upper surfaces of the blocks are cut away, as shown at 18, to permit the dustladen air to escape, and, communicating withthe passages 18, are conduits 19 in a casting 20, and communicating with a conduit 21, the casting 2O havinga circumferential groove 22 adapted to be connected with a dust bag, not shown. lhe base blocks 5 are extended toward each other at the top, as slown at 23, to form a closure to prevent the downward escape of the air from. the fan into the spaces between the lower portions of the blocks 5.

Upon the extended ends of the motor shaftare secured, as shown at 24C, `crown cams 26, having, for `the sake of lightness,

holes 27 formed therein, the drops in said cams-being at circumferentially opposite pointsvonthe two cams. Said cams engage rollers 28 on Vthe upper ends of levers 29 carried by shafts 30 having bearings in recesses 31, 3 2, in the end pieces and blocks respectively; said shafts projecting rearwardly from said recesses and being formed with arms 33, to which are4 attached ends of coiled .springs 34, the other ends of which are attached to screws 36 4screwed in, andextending rearwardly from, the housing. 'llhe springs 34a normally draw the upper `ends of the arms 33 inwardly. Secured tothe lower ends of said levers are light beater rods 38 winch extend from said levers transversely` across the vacuum cleanerA to the opposite ends thereof. The rotatinor crown cams raise the beater rods from ofiP the floor, and, when the rollers 28 arrive at the drops in the cams, said leverssuddenly drop inward, under the action of said coiledsprings, and theA beater rodsv are caused 'to beat the floor. These beater rods are not used when sweeping ahardwood Hoor-and in that case their operation, is preventedihy means of stops 39 pivoted uponv the housing, and the free ends of which engage the-inner of said arms 33. When in use they beat the carpet twice in eachl revolution of the motor shaft, and thus beat the dust out of the carpet, which dist is immediately drawn to the center of the centrifugal fans and propelled at the periphery thereof into the passages 18 and .thence to the dust ba@ where the dust is collected and the air escapes through the in-A terstices of the bag.

42 indicates stirrer plates having vertical slots 43 therein, through which pass screws 44 screwed into the inner sides of the blocks. Said stirrer plates have extending toward each other from their upper edges flanges 45 which are normally depressed by a spring 4'? secured to the motor casing by a screw i .48. 'Ihe lower edges of these stirrer plates,

being pressed against the carpet by the spring 47, stir up the dust therein, which is drawn off by the centrifugal fans. When, as in' passing over a hardwood floor, it is not desired that the stirrer plates should be in use, they are raised by means of a cam- 'like arm 49 upon a shaft 51 mounted in 'one of said flanges 7 and are screwed into the other flange.

62 indicates a tubular handle the lower en d of whichsurrounds the two semi-cylindrical pbrtions'of the handle connection, and a. spring 63 between the two parts of said connection presses Athem against the handle and holds it in place, thus permity ting the handle to be adjusted relatively to the device, to adapt the sweeper for use by tall or short persons orto permit it to be moved under a table, bed, or the like.

64 indicates a handle for convenience in carrying the apparatus.

I claim l. In combination, front and rear rollers,

a rotating motor and fans carried thereby, one at each end of the motor, cams rotating with the motor, beaters between said rollers, and adapted to strike the surface upon which the rollers roll, and means controlled by said cams for moving said beaters.

2. In combination, front and rear rollers,

a rotating motor and fans carried thereby, one at each end of the motor, cams rotating with the motor, a casing surrounding the fans, levers pivotally mounted in said casingv and controlled by said cams, and vibrating beaters between said rollers and carried by said levers and adapted to strike the surface upon which the rollers are roll- 1n In combination, front and rear rollers, a rotating motor and fans carried thereby, one at each end of the motor, cams rotating with the motor, a casing surrounding the fans, levers pivotally mounted in said casing and controlled by said calns, springs actuating said levers, and vibrating beaters between said rollers and carried by said levers and adapted to strike the surface upon which the rollers are rolling.

4. In combination, supports adapted to move along the ground, a motor and a fan carried thereby, a vibrating .beater between the supports and adapted in its vibrationto strike the surface of the ground, a removable stop for preventing the movement of said beater and means controlled by said motor for vibrating said beater.

A In testimony whereof I have hereunto set my hand in the presence of two subscrib- AingJ witnesses.

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