US1157899A

US1157899A - Cement leveling and finishing machine.

Info

Publication number: US1157899A
Application number: US84556214A
Authority: US
Inventors: Sven Oscar Peterson
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-06-17
Filing date: 1914-06-17
Publication date: 1915-10-26
Anticipated expiration: 1932-10-26

Description

S. 0. PETERSON! CEMENT LEVELING AND FSINISHING/ MACHINE.

A'PPuc/lou FILED lun: l1. 1914.

1,157,899. v Patented 0t.26,1915.

- .Y f 2 snmssm 1.

\ I f l S. 0. PETERSON.

CEMENT LEVELING AND FINISHING MACHINE.

APPLICATION FILED JUNE I7. I9I4.

IIIIIIIIIIIIIL SVEN OSCAR PETERSON, ROCK ISLAND, ILLINOIS.

CEMENT LEVELING AND FINISHING MACHINE.

Specification of Letters Patent.

Patented Oct. 26', 1915.

Application lled June 17, 1914. Serial No. 845,562.

' citizen of the United States, and'a resident of the city of Rock Island, county of Rock Island, and State of Illinois, have invented certain new and useful Improvements in' Cement Leveling and F inishing Machines, of which the following is a specification.

M v invention relates to cement leveling and finishing machines especially designed for use in the buildingl of cement sidewalks, and has for its object the production of a machine of this character which will be of durable and economical construction and eflicient in use.

Other objects will appear hereinafter.

The invention consists in the combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings forming a part of this specification, and 1n which- Figure 1 is a top plan view of a cement leveling and finishing machine embodying my invention, Fig. 2 is a side elevation thereof, and Figs. 3and t are sections taken on lines -x and g/-y respectively of Fig. l.

The preferred form of construction as illustrated in the drawings comprises a rectangular metallic frame 1 which is mounted. at its front end upon wheels 2 and at its rear end upon wheels 3'. The wheels 2 and 3 are correspondingly spaced apart for engagement with the upper edges of the rails or strips 4 which are employed to define the longitudinal edges of a cement walk in the construction of the latter. The wheels 2 and 3 are of flanged construction as shown,'said flanges being adapted to engage against the inner sides of the rails 4l in order to hold the machine in position upon said rails in the travel thereof along the same.

Each of the wheels 2 is mounted upon a stud shaft 5 which is mounted in a bracket 6 depending from the frame 1, as clearly shown in Fig. 4. Said shaft is loosely mounted in the bracket 6, being adapted for longitudinal adjustment in order to permit of lateral adjustment of the wheels 2 relative to the frame of the machine. In order to lock the shaft 5 in its positions of longitudinal adjustment, removable collars 7 are employed for engagement with opposite sides of the bracket 6, the arrangement being such that, upon removal of the nut 8, provided at the inner end of each of said shafts, the latter may be detached iu order to secure the adjustment thereof desired and the inter-changing orproper positioning of the collars 7 The wheels 3 are mounted at the respective ends of a longitudinally adjustable shaft which is mounted in bearing brackets 9 depending` from the rear end of frame l. Said shaft consists of two telescoping sections 10 and 11 which are locked in positions of relative adjustment by means of set screws 12. The construction is such, as will be seen, that lateral adjustment of the rear wheels of the machine relative to the frame thereof may be readily effected by simply longitudinally adjusting the sections 10 and 11 of the shaft. Thus, it will be seen that both the front and rear wheels of the machine are laterally adjustable, in

order to adapt the .machine for use in the j construction of sidewalks of various widths.

Arranged at the front end of the frame 1 is al transversely extending bar 13 which serves the function of a leveler, the member v13 being detachably secured by means of screws 14 to brackets 15 which project forf wardly from the frontend of frame 1. The under surface of member 13 isinclined upwardly, the lower or rearward edge of said surface being disposed in the plane of the upper edges of rails f1 so that in the forward movement of the machine, during operation thereof, the' plastic cement will be leveled by the member 13 to the plane of the upper edges of said rails #1, as will be readily undei-stood. At the respective ends of the member 13 are provided depending flanges 16 which prevent the cement spreading over onto the upper sides of rails l, and provided at the lower edges of flanges 16 are outwardly extending flanges 17 adapted, in the operation of the machine, to engage against the upper sides of rails t.

Arranged centrally `in the frame 1 is a vertically disposed shaft 1S rotatably mounted in a bearing bracket 19 secured rigidly in said frame. Provided at the lower end of said shaft 18 is a horizontally disposed arm 20 detachably secured to said shaft by means of securing devices 21 which engage with a head 22 pinned or otherwise fixed to the lower end of said shaft. The securing devices 21`pass through spaced perforations 23 provided in said arm 20, the latter being provided with a plurality of sets of said perforations in order. to permit of radial adjustment of said arm, as will be readily understood. Provided at the outer end of arm 20 is a trowel l24, the latter being disposed in the plane of the upper edge of rails 4 so as to be adapted, when the machine is in operation and said arm is rotated, to contact with the upper surface of the cement which had subsequently been leveled by the leveler 13, the action of said trowel upon said upper cement surface, serving to smoothen or finish the same, as will be readily understood by those skilled in the art. By reason of the radial adjustment afforded the arm 20, relative to the shaft 18, it will be seen that the diameter of the operative circle or path of movement of the trowel may be increased or decreased in order to adapt the machine for use in the finishing of sidewalks of various widths.

The shaft' 18 is driven through the me dium of a bevel gear 25 Iwhich meshes with a bevel pinion '26 fixed to a shaft 27 mounted in suitable bearings arising fromframe 1. Upon the shaft 27 is also fixed a gear 28 meshing with a pinion 29 which in turn is connected by means of a pinion 30 with a pinion 31 fixed to a shaft 32 mounted lin suitable bearings arising from frame 1. Upon shaft^32 is also fixed a gear 33 which meshes with a pinion 34 fixed to the power shaft 35 of a gasolene or other suitable form of motor 36 which is mounted upon frame 1, as shown. With this arrangement, it will be seen that an operative connection is established between the motor 36 and the trowel 24, the gearing interposed between the motor and the shaft 18 being such as to reduce the speed, as will bel readily understood. Also fixed to the shaft 27 is a pinion 37 which is connected through an idler gear 38 with a gear 39 fixed to a countershaft 40 mounted in suitable bearings arising from frame 1. Upon `the shaft 40 is also fixed a sprocket wheel k4-1 which is connected through the medium of an endless sprocket chain 42 with a sprocket-wheel 43 fixed to ythe rear shaft 10-11 coperating with the rear wheels 3. Thus, it will be seen, thanL an.op erative connection is also established between the rear wheels 3 of the machine and the motor so that 'in the operation of the latter, the trowel 24 will be rotated andthe machine .simultaneously propelled or advanced.

The inner sides of the flanges of wheels 2 and3 are so formed as to eHect rounding of the longitudinal edges of the surface of the walk, said edges being subsequently finished or smoothened b' means of members 44 arranged directly ehind the wheels 3 which I are fixed to stems 45 extending inwardly therefrom. Said stems 45 are secured by means of bolts 46 with brackets 47 secured rigidly to the rearward end of frame 1.

The stems 45 are longitudinally slotted-for engagement by the securing bolts 46 in order to permit of lateral adjustment thereof and hence of the edge-finishing members 44 carried thereby. The adjustment thus afforded is for the same purpose as the adjustable mounting of wheels 2 and 3 and trowel 24, namely, that of adapting the machine for use in the formation of walks of various widths. In this connection, it is desired to state that in the case of the leveler 13, a number of leveling devices of various widths will be supplied with each machine, so as to permit of a leveler of proper width being employedin the adjustment of the machine to any desired width With a machine of the construction set forth, it will be seen that the leveling and finishing of a cement sidewalk may be mechanically effected, the construction presented being adapted to perform this work as efficiently as can be done manually and with far greater rapidity. The machine may be readily and easily controlledl and because of the adjustability thereof is rendered applicable in the construction of walks of various widths.

While I have illustrated and described the prefer-red form of construction for carrying my invention into effect, this is capable of variation and modification without departing from the spirit of the invention. I, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

Having described my invention what I claim as new and desire to secure by Letters Patent is: f

1. A machine of the class described comprising a wheeled frame; a vertically disposed rotatable shaft; a horizontally disposed'arm on said shaft connected therewith to permit of radial adjustment; a trowel on said arm; and means for rotating said shaft, substantially as described.

2. A machine of the class described comprising a frame; wheels supporting said frame and laterally adjustable relative thereto; a rotatable and radially adjustable trowel arranged below said frame substantially centrally thereof for movement in a horizontal plane; and means for rotating said trowel, substantially as described.

3. A machine of the class described comprising a wheeled frame; a leveler provided at ,the front end `of said frame; a movably mounted trowel arranged below said frame adapted for movement in a horizontal plane passing substantially through the under edge of said leveler; and edge-rounding members arranged at the opposite sides of the rear end of said frame, substantially as described.

.will

through the under edge of said leveler; and' laterally adjustable edge-rounding members arranged at opposite sides of the rear end of said frame, substantially as described.

5. A machine of the class described comprising a trame; wheels supporting said trame adapted to engage upon rails dening the longitudinal edges of the walk constructed in the operation of said machine; annular llanges on said wheels adapted to engage against the inner sides of said rails and form the adjacent longitudinal edges of the walk: and edge-finishing members secured to said frame rearwardlyv of said wheels, substantially as described.

A machine of the class described comprising a frame; wheels supporting said frame and laterally adjustable relative thereto; a leveler provided at the front end of said frame; a rotatable and radially adjustable troWel arranged below said frame substantially centrally thereof for movement in a horizontal plane passing substantially through the under edge of said leveler; laterally adjustable edge-rounding members arranged at opposite sides of the rear end of said frame; a motor mounted on said frame; and a vgear connection between said motor and said wheels and trowel, substantially as described.

47. A machine of the class described comprising a Wheeled frame; a leveler provided at the front end of said frame; and a movably mounted troWel arranged below said. frame adapted for movement in a horizontal plane passing substantially through the under edge of said leveler, the under side of Said vl'evel'er being inclined upwardly toward the front edge thereof, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

SVEN OSCAR PETERSON. i

Vitnesses: j

INA D. STONE, E. A. LORD.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Intenta, Washington, D. C.