US488950A - Carpet sweeper - Google Patents

Description

(No Model.)

S. H. RAYMOND.

CARPET SWEBPER. No. 488,950. Patented D60. 27, 1892.

INVE/VTOH Silas H.111: ymom? BY A T TORNEY.

UNITED STATES PATENT OFFICE.

SILAS H. RAYMOND, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR TO T. STEVART WHITE AND THOMAS FRIANT, OF SAME PLACE.

CARPET-SWEEPER.

SPECIFICATION forming part of Letters Patent No. 488,950, dated December 2'7, 1892.

Application filed January 16 1892- Serial No. 418,227. (No model.)

To all whom it may concern:

Be it known that I, SILAs H. RAYMOND, a citizen of the United States, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Carpet-Sweepers; and I do hereby declare the following to be a full,

clear, and exact description of the invention,

such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in carpet sweepers, and its object is to provide the same with certain new and useful features hereinafter more fully described and particularly pointed out in the claims, reference being had to the accompanying drawings in which I Figure 1 is a plan view of a device embodying my invention. Fig. 2 a vertical section of the same on the line 22 of Fig. 1. Fig. 3 a horizontal section of the same on the line 3-3 I of Fig. 2; and, Fig. 4 an end elevation of the inner frame and parts attached.

Like letters refer to like parts in all of the figures.

A is an outer case having attached the usual handle socket U. Within thiscase is a detachable frame somewhat shorter than said case, to make room for the driving Wheels and brush pulleys. Said frame consists of two end walls or partitions B connected at the top by abar G, and at the bottom by the dust pans, consisting of the inclined strips D D at each side of the brush, the bottoms E E and the outer strips C C. This bar and the parts of the dust pans are all permanently attached to the end walls 13 B forming a strongframe within which is journaled the brush shaft F, having pulleys Q Q on the outside of said frame at each end thereof. These pulleys engage driving wheels P Pwhich wheels engage the floor at their lower sides, and support the forward side of the device. Said driving wheels are journaled on studs R attached to disks R adjustably secured to the outer surface of the walls B, by means of screws V V passing through openings near the respective upper and lower sides of said disk, one of which openings is slotted concentric with the other to permit of adjusting said disk about the same. Th us by slackening back the screw in the slotted opening the stud R maybe swung toward the axis of the brush shaft, and contact secured between the driving wheel P and brush pulley Q. By again tightening said screw, the stud R is fixed in position and will not recede on the backward stroke of the sweeper, and fail to properly drive the brush as is the case with yielding bearings.

To secure the vertical elasticity necessary to bring the brush in closer contact with the carpet by downward pressure upon the handle, I provide a flexible arm or spring N attached to the rear of the case, and projecting therefrom, in the end of which spring is journaled a roll 0 which contacts the floor. As pressure is applied to the handle this spring N yields as shown by dotted lines, thus allowing the rear of the case to approach the floor as shown by the line T.

To secure the frame within the case, I attach a pointed stud H to the bar G which stud passes freely through the top of the case and a plate M upon which is a latch J which engages a groove I in said stud. Said latch is pivoted at one end to swing horizontally, and has a concavity in one side engaging one side of said stud, and is held down by a strap L near its free end which strap embraces said latch and the end of a springSand is of such length as to permit of sufficient lateral movement of the free end of said latch, by means of the knob K to release the stud H and permit the removal of the frame from the case. The spring S is attached to the latch J in such position that it tends to force said latch toward the stud and to engage itwith the groove I. The conical end of the stud, forces the latch back as the case is placed over the frame and pressed down to place. Blocks A are provided in each end of the case to guide the frame to place. By this construction I am able to use but two driving wheels for the brush shaft and get sufficient action of the same on the backward stroke which is not the case when said wheels are on yielding bearings, I am also at the same time able to provide a simple and cheap means of supporting the rear of the device, and lowering the brush by downward pressure upon the handle. I

also by this device provide for easily detaching and replacing the inner frame carrying the working parts and thus to make the pans a part of the said frame and fixed thereto thus entirely dispensing with all springs, levers 850., to open and close the pans, being able to empty the same by detaching the frame, such ready detachment also enables me to gain easy access to the brush for removing any thing adhering thereto, to further facilitate which the bar G is not entirely above the brush, but a little at one side of the middle of the frame.

What I claim is; p

1. In a carpet sweeper in combination with an outer case an inner frame consisting of end walls connected by a bar at the top and dust pans at the bottom, all rigidly attached Q to said end Walls, detachable fastenings to se-- 5 cure said frame in the ease and a brush shaft and driving wheels journaled on said frame 1 substantially as described.

2 carpet; sweeper, the combination of the case, the brush shaft, the driving Wheels located at one side only of the brush shaft and supporting one side of said case, said driving wheelsbeing journaled on unyielding bearings, and a Wheel supporting the other side of said case and journaled in vertically flexible bearings, substantially as described. 3. In a carpet sweeper in combination with a case, and a detachable inner frame, having dust pans, brush shaft, and driving wheels attached, a pointed stud onsaid frame, en-

gaging an opening in said case, a groove in said stud and a pivoted latch engaging said groove, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

SIL AS H. RAYMOND.

Witnesses:

LUTHER V. MoULToN, M. L. MoULToN.

Images