Method for screeding cement

• US 4,115,976 A
• Filed: 03/21/1977
• Issued: 09/26/1978
• Est. Priority Date: 03/21/1977
• Status: Expired due to Term

• Current Assignee: John Rohrer Contracting Company
• Original Assignee: John Rohrer Contracting Company
• Inventors: Rohrer, Walter J.
• Primary Examiner(s): Ridgill, Jr., James L.
• Application Number:
  US05/779,606
• Time in Patent Office: 554 Days
• Field of Search: 52/365-367, 52/298, 52/126, 52/741, 52/704-709, 404/118, 404/119, 404/135, 404/136, 404/106, 264/35, 33/293, 33/295
• US Class Current: 52/745.05
• CPC Class Codes: E01C 23/01 Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed or reference line supports form rails E01C19/50; Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs E01C23/07 takes precedence; measuring roughness or irregularity in general G01B
• CPC Class Codes: E04F 21/04 Patterns or templates; Jointing rulers profile trowels E04F21/16
• CPC Class Codes: E04F 21/05 Supports for jointing rulers
• CPC Class Codes: E04G 21/10 Devices for levelling, e.g. templates or boards smoothing tools E04F21/16, E04F21/24

Abstract

A screed support and method for screeding cement comprises digging a plurality of arranged holes in the bed surface of the area to be cemented. Unsolidified cement is poured into each of the holes, a hollow sleeve is inserted into the wet cement and positioned therein in a substantially vertical orientation, and the cement is cured to a solidified state. A rail support member having a threaded rod and a mating, adjustable collar, is telescopically inserted into each of the sleeves. Screed support rails are connected with each rod, and the elevation and inclination of the same is adjusted in infinitely small increments by manipulating each collar in accordance with the desired, predetermined requirements. Additional unsolidified cement is then poured between the rails, and a self-propelled screeding machine is passed thereover to smoothen and level the uneven free surface of the additional cement. Before the additional cement hardens, the rails are disconnected from the support members and the collar and rod assemblies are extracted from the sleeves.

Claims

1. In a method for screeding cement floors to a desired level with a self-propelled screeding machine, including providing an area of ground with an aggregate bed surface thereover, and a pair of rails for supporting each side of said screeding machine above said aggregate bed surface, the improvement comprising:

(a) digging a plurality of holes through said aggregate bed surface into the ground;

said holes being arranged in at least two substantially parallel and spaced apart rows wherein the holes in each row are spaced apart and generally aligned;

(b) pouring unsolidified cement into each of said holes;

(c) inserting an open ended sleeve in a substantially vertical orientation in the unsolidified cement in each of said holes;

positioning a closed end of said sleeve downwardly within said cement, and positioning an open end of said sleeve in a position communicating with the area above the free surface of said cement;

(d) curing said cement to a solidified state, thereby forming a cement footing around each sleeve and fixedly setting the same in said bed surface;

(e) inserting a rail support member telescopically into each sleeve;

said support member including an upper end; and

(f) connecting said rails to the upper end of each support member whereby the weight of said screeding machine does not settle said support members and cause undulations and deviation from the desired level of said floor.

2. A method for screeding cement floors comprising the steps of:

(a) providing a floor bed surface and a screed;

(b) digging a plurality of rail support holes in said bed surface;

said holes being arranged in at least two substantially parallel and spaced apart rows wherein the holes in each of said rows are spaced apart and generally aligned;

(c) pouring unsolidified cement into each of said holes;

(d) positioning a sleeve in each of said holes;

said sleeve being positioned in a substantially vertical orientation and having an open end with a terminal edge thereof extending above the free surface of said cement, and a closed end thereof positioned downwardly within said cement;

(e) curing said cement to a solidified state;

(f) inserting a rail support member telescopically into each of said sleeves;

said support member including a threaded, vertically adjustable collar abutting the terminal edge of said sleeve open end and adjustably supporting said support member in said sleeve;

(g) connecting an elongate rail to each rail support member in each of said rows;

each rail having an upper surface;

(h) adjusting the elevation and inclination of each of said rails by manipulating said adjustable collars;

(i) pouring additional unsolidified cement onto said floor bed surface between said rows to a height slightly above said rail upper surface;

said additional unsolidified cement having an uneven upper free surface;

(j) passing said screed over said rail upper surface whereby the uneven upper free surface of said additional unsolidified cement is rendered smooth and planar;

(k) disconnecting said rails from said support members and removing the same to a remote location;

(l) extracting said support member from each sleeve; and

wherein

(m) said screed is a self propelled screeding machine;

p1 (n) said sleeve inserting includes imbedding a portion of said collar in said unsolidified cement and creating an indentation with a flat circular area in the free surface thereof; and

(o) said rail support member collar is positioned within said indentation and partially supported by said flat circular area thereof.

3. A method for screeding cement floors comprising the steps of:

(a) providing an area of ground with an aggregate bed surface thereover and a self-propelled screeding machine;

(b) digging a plurality of rail support holes in said bed surface;

said holes being arranged in at least two substantially parallel and spaced apart rows wherein the holes in each of said rows are spaced apart and generally aligned;

(c) pouring unsolidified cement into each of said holes;

(d) inserting an open ended sleeve in a substantially vertical orientation in the unsolidified cement in each of said holes;

positioning a closed end of said sleeve downwardly within said cement, and positioning an open end of said sleeve in a position communicating with the area above the free surface of said cement;

(e) curing said cement to a solidified state, thereby forming a cement footing around each sleeve and fixedly setting the same in said bed surface;

(f) inserting a rail support member telescopically into each of said sleeves;

said support member including a threaded, vertically adjustable collar abutting the terminal edge of said sleeve open end and adjustably supporting said support member in said sleeve;

(g) connecting an elongate rail to each rail support member in each of said rows;

each rail having an upper surface;

(h) adjusting the elevation and inclination of each of said rails by manipulating said adjustable collars;

(i) pouring additional unsolidified cement onto said floor bed surface between said rows to a height slightly above the upper surface thereof;

said additional unsolidified cement having an uneven upper free surface;

(j) passing said self propelled screeding machine over the upper surface of each rail whereby the uneven upper free surface of said additional unsolidified cement is rendered smooth and planar;

(k) disconnecting said rails from said support members and removing the same to a remote location; and

(l) extracting said support member from each sleeve.

4. A method as set forth in claim 3 including

(a) screeding around an obstruction protruding from the ground including the steps of:

(1) locating one of said rows in alignment with said obstruction;

(2) positioning separate rails on either side of said obstruction and supporting said separate rails by associated sleeve and rail support members;

(3) providing a short rail segment and positioning the same adjacent an inside surface of said projection;

said short rail being supported by associated sleeve and rail support members;

(4) piloting said self-propelled screeding machine over said rails to a point adjacent said obstruction;

said screeding machine having a first screed end disposed in line with said obstruction and a second screed end positioned remotely thereof;

(5) reversing said screeding machine to a position spaced from said obstruction;

(6) pivoting the first screed end about the second screed end, whereby said first screed end is supported by said short rail segment;

(7) pivoting the second screed end about the first screed end to a point wherein said obstruction is outside of the rotational path of said first screed end; and

(8) pivoting the first screed end about the second screed end to a position wherein said screeding machine is disposed substantially perpendicular to said rails.