US1635480A

US1635480A - Floor-surfacing machine

Info

Publication number: US1635480A
Application number: US44565A
Authority: US
Inventors: Omand B Jacobson
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-07-18
Filing date: 1925-07-18
Publication date: 1927-07-12
Anticipated expiration: 1944-07-12

Description

- I 1,635 480 July 1927' 4 o. B. JACOBSON' FLOOR SURFACING MACHINE Filed July 18, 1925 INVENTOR. 001mm 5. $4 0 55 am,

A TTORNE Y.

Patented July 12, 1927.

OMAND B. JACQ BSON, OF WAUKEGAN, ILLINOIS.

FLOOB-S'UBFACING MACHINE.

Application filed July 18, 1925. Serial No. $4,565

This invention relates to that class of floor surfacing machines in which a pair of surfacing heads of the rectangular slab type are arranged side by .side in' the housing of the machine and receive simultaneous reciprocation in opposite directions from a driving mechanism mounted upon said housing. And the present improvement has for its object To provide a structural formation and combination of parts and features, affording a substantial and efficientsupporting and guiding means for the reciprocatingsurfacing heads or slabs of the machine combined with a housing shell or structure adapted to support the operating mechanism of said heads or slabs in the attainment of a compact and substantial machine as a whole, all as will hereinafter more fully appear.

In the accompanving drawing Fig. 1, is a side elevation with parts broken away and withthe enclosing shell or housing in section.

Fig. 2, is a top view with the shell or housing in section. 1

Fig. 3, is a transverse section on line 3-3 Fig. '1.

Like reference numerals indicate like parts in the difierent views.

The main shell or housing of the machine is of an open bottom shell form, divided midway its height into a main lower section 1 and a top section 2 of a cap form, with the two sections fixedly connected at their meeting edges and with said edges formed with counterpart recesses constituting journal bearings for the transversely arranged shafts of the hereinafter described driving mechanism of the machine. In the present improvernent, the cavity of the shell or housing is divided by alongitudinal wall or partition 3, which in turn is divided midway its height in a manner complementary to the above described division of the main shell or housing. The end'walls 4 of the shell or housing are preferably of the inclined form asshown, with a view to lightness and convenience in the manipulation of the machine bythe operator.

Adjacent to the lower ends of the side walls of the lower shell section 1 and of the wall or partition 3, are arranged pairs of opposed an longitudinally extending series of

track rollers

5 and 6, forming ide tracks for the pair of surfacing lien or slabs now to be described. j

nection with the adjacent upper faces of the heads or slabs provide longitudinal channels for tracking engagement with the

aforesaid track rollers

5, 6, of the main shell or housing and of the longitudinal partition 3 of the same. In addition the upper faces of the

slabs

7, 8, carry upstanding ears 11 for pivotal attachment of the pitmans of an operating mechanism as follows:

An operating electric or like motor 12, is secured to the to of the main shell or housing of the machine, with its armature shaft connected by sprocket wheel and chain connection 13, or like gearing, with an intermediate transverse shaft 14 journaled within the shell or housing and in a set of the hearing recesses formed at the line ofdivision between the lower and

upper portions

1, 2 of said shell and the like portions of the partition 3, as heretofore referred to.

Operatively connected, by a sprocket wheel and chain connection 15, with the aforesaid transverse shaft 1.4, is a transverse crank shaft 16, also mounted within the shell or housing in manner similar to that above described in connection with the intermediate transverse shaft '14.

In the present improvement the crank p01-

tions

17 and 18 of the crank shaft 16 are arranged in diametrically opposed relation to each other as shown, and have individual operative connections, by

pitmen

19 and 20 with the respective surfacin heads or

slabs

7 and 8, and as so arranged are adapted to impart simultaneous reciprocation to said heads or slabs in opposite directions.

At one end *of the main shell or housing, a transverse axle 21 is arranged for the support of wheels 22, upon which the machine as a whole and in a. tilted condition can be moved from location to location as required.

And in connection. with such wheel provision the shell or housing is rovided with a handle 23, for such use, as we 1 as for moving the machine along the floor as the surfacing of the same progresses.

Havin thus fully described my intention, What I c aim and desire to secure by Letters Patent, is

In a floor surfacing machine, the combination of a main casing open at bottom and formed by upper and lower sections with the abutting faces of such sections formed with complementary portions of a lurality of bearing recesses, and a central ongitudinal partition in said casing, a pair of surfacing slabs having side by side relation, track connections between the lower casing section and the surfacing slabs comprising longitudinal track flanges extending laterally from the sides of one part, and 15 track rollers on the other part having engagement with said track flanges, a crank shaft mounted in the bearing recesses in seam between the casing sections and formed with a pair of diametrically opposed crank 20 members, pitmen connecting said crank members with the surfacing slabs, and 13118835 for imparting rotation to the crank Signed at Waukegan, Illinois, this 20612 day of June, 1924.

OMAND B. JAGOBSQN.