US1146540A

US1146540A - Vacuum-cleaner.

Info

Publication number: US1146540A
Application number: US82262514A
Authority: US
Inventors: John M Winter
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-03-05
Filing date: 1914-03-05
Publication date: 1915-07-13
Anticipated expiration: 1932-07-13

Description

J. M. WINTER.

VACUUM CLEANER.

APPLICATION FILED MAR 5. 1914.

M w m y w m N M m h w J a j. 4 I W V 6 4 1 VACUUM-CLEANER,

1,146,514tll;

Specification of Letters Patent.

Patented July 13, 19115 Application filed. March 5, 1914, Serial No. 822,625.

To all whom it may concern Be it known that I, JOHN M. WINTER, a citizen of the United States, residing at Reading, in the county of Berks and State of Pennsylvania, have invented certain new and useful Improvements in Vacuum- Cleaners, of which the following is a speciiication.

' My invention relates particularly to manually actuated vacuum cleaners and is especially directed to that class of such devices in which the entire mechanism is embodied in a unitary structure and carried by the operator while in operation.

The principal objects of my invention are to provide a portable vacuum cleaner which will be simple in construction, efficient in its operation, light in weight and which may be operated with the greatest ease.

My invention comprehends a vacuum cleaner having its actuating members so correlated as to be operated by the contemporaneous relative movement of the hands of the operator in relatively opposite directions.

Specifically stated, my invention comprises a vacuum cleaner having a frame carrying a pivoted lever which is provided with a crosshead slidably mounted thereon and pivotally connected with the plunger rod of the vacuum producing member, said frame and lever being provided at their free end with suitable handles which may be grasped by the operator and caused to be thrust toward each other and draw apart' alternatively. a

My invention also includes all of the various novel features of construction and arrangement of the operatin parts as hereinafter more definitely speci ed.

In the accompanying drawings, Figure 1 is a vertical longitudinal sectional view, taken axially through the cylinder of the machine, the suction nozzle and operating mechanism being shown in elevation for convenience of illustration and Fig. 2 is a transverse sectional view taken on the line 22 in F lg. 1 but showing the operating lever as shifted to a position normal to the axis of the plunger and parallel with the plane of the section. a

In said figures the cylinder?) is provided with a transversely extended diaphragm 4 to form a vacuum chamber 5 and a receiving chamber 6, said vacuum chamber being closed by the upper end cap 7Wl1icl1 is secured in sealed relation with the walls of said cylinder to form an air tight compartment.

The receiving chamber 6 1s arranged to be a closed by the removable cap 8 having the inwardly projecting cylindrical-rim 9 fitted in telescopic relation with the lower. end of the cylinder 3, and being retained therein by the rigidly disposed hasp 10, projecting from one side of said cylinder, and into the eye of which the lug 11 on the cap 8 may be entered, the other side of said cap being held by the spring clasp 12.

The cap 8 carries the inlet tube 13, terminating within the receiving chamber 6 and carrying at its lower end the suction nozzle 15. Said cap 8 is also provided with the inwardly projecting rim 16 having the bend 17 near its free edge for supporting and retaining the strainer bag 18 which maybe formed of any suitable reticulated material,

preferably of woven fabric, for arresting any solid particles that may beheld in suspension in the air which is drawn through the suction nozzle 15.

The diaphragm 4c is slidably fitted in the cylinder 3, having the peripheral packing 19 to prevent leakage of air into the vacuum chamber 5, and a handle 20 by which it may be removed and replaced when access is desired to said vacuum chamber. Said diaphragm may be conveniently retained in position by screws 22 extended therein through the cylinder wall.

The cylinder 3 is provided upon diametrically opposite sides with longitudinally extended semi-cylindrical valve casings 25 and 26forming suitable passageways for conveying air into the vacuum chamber 5 and discharging it therefrom. The passageway in the valve casing 25 is connected with the chamber 6 by the port 27, and with the vacuum chamber 5 by the ports 28 and 29, while the passageway formed by the valve casing 26 is connected with the vacuum chamber 5 by the ports 30 and 31, and with the atmosphere through the exhaust outlet 32.

The ports 28 and 29 are controlled by flap valves each comprising a foraminous diaphragm 35, over the holes of which is stretched a loosely extended flap 36 of leather or other flexible material preferably secured at both ends and free to be drawn from the diaphragm toward said ports 28 and 29 as shown at the port 28.

The ports 30 and 31 are controlled by flap valves each comprising a foraminous diaphragm 37 over the holes of which is stretched a flap 39 similar to the flap 36 but disposed exterior to the diaphragm 37 and arranged to be extended therefrom as best shown in connection with the port 30 gvhegi pressure is created within the cham- Mounted in the chamber 5 and tending to produce a partial vacuum therein when reciprocated, is the piston 40, having the packing ring 41 preferably formed of wear resisting material such as leather, backed by a band 42, of rubber or the like. Said piston is connected by the wing nut 43 with the piston rod pr plunger 4 5. which extends through the stufiing-box 44 and is connected at its upper end by the wrist-pin 46 with the cross-head comprising the spaced blocks 47 respectively mou'nted to slide upon the parallel arms of the operating lever 50 by which said crosshead is carried.

The lever 50 is formed of a single piece of wire of suitable gage, bent to carry the handle 51 and having its ends brought together and connected by the pivot pin 52 to the laterally extended return bend 55 of the longitudinally extended frame or bail 56 which is similarly formed of a single piece of wire carrying the handle 57 and having its diverging side members terminating in

suitable anchorages

59 and 60 in the upper ends of the

valve casings

25 and 26 respectively. Said lever is provided with the brace 61-connecting its parallel arms.

In order to maintain the piston rod 45 in a rectilineal path suitable guides 62 and 63 are provided which extend parallel with 7 said piston rod and straddle the stufiingbox 44, having their lower ends secured to the upper cap 7, and their upper ends extended outwardly and respectively connected with the diverging members of the bail 56 adjacent to the handle 57.

It will be noted that as the angular relation of the lever 50 with respect to the guides 62 and 63 increases, the natural tendency of the piston would be to more closely hug the guideand thereby produce additional friction, this may be avoided by the pin or roller 69 which, being extended between the blocks 47, above and parallel with the wristpin 46, engages the guide and holds the piston inits true axial position as best shown in Fig. 1.

My invention is especially advantageous in that by the arrangement of the operative parts the

handles

51 and 57 are contemporaneously moved either in the direction of the arrows shown in Fig. 1 or in the direction opposite thereto, whereby both hands essential features of my invention as de' fined in the appended claims.

Having thus described my invention, 1 claim 1. The combination with a vacuum producing mechanism involving a fixed part of a frame arranged beyond the vacuum producing mechanism and including spaced bars secured to the fixed part of the mechanism and terminating beyond the same in a handle portion, one of said bars being laterally ofi-set, guide bars arranged between said spaced bars and projected in spaced parallel relation to each other, the guide bars being connected at one end to the fixed part of the mechanism and at the opposite end 'to the handle portion. a movable element connected to the off-set and slidably embracing the guide bars and a connection between said element and the movable part of the vacuum producing mechanism.

2. The combination with a vacuum producing mechanism involving a fixed part of a frame arranged beyond the vacuum producing mechanism and including spaced bars secured to the fixed part of the mechanism and terminating beyond the same in a handle portion, one of said bars being laterally off-set, guide bars arranged between said spaced bars and'projected in spaced parallel relation to each other, the guide bars being connected at one end to the fixed part of the mechanism, and at the opposite end to the handle portion, a lever pivotally connected to the ofi-set and embracing the guide bars, a connection slidably carriedby the lever and slidably cooperating with the guide bars and a rod extending from said connection to the movable member of the vacuum producing mechanism. v

JOHN M. WINTER.

Witnesses:

ED. A. KELLY, CLARA E. YOUNG.