GB819621A - Improvements in or relating to screeds - Google Patents

Improvements in or relating to screeds

Info

Publication number
GB819621A
GB819621A GB3442157A GB3442157A GB819621A GB 819621 A GB819621 A GB 819621A GB 3442157 A GB3442157 A GB 3442157A GB 3442157 A GB3442157 A GB 3442157A GB 819621 A GB819621 A GB 819621A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
screed
produced
masses
shafts
resultant force
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3442157A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BYGGMEKANISERING AB
Original Assignee
BYGGMEKANISERING AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/30Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
    • E01C19/34Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
    • E01C19/40Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers
    • E01C19/402Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers the tools being hand-guided

Abstract

819,621. Screeding machines. BYGGMEKANISERING A. B. Nov. 5, 1957 [Nov. 10, 1956], No. 34421/57. Class 107 The screed of a machine for laying a smooth surface, for example of concrete, is vibrated longitudinally but not vertically by rotating eccentric masses, so arranged in two groups that the forces produced by each of them act in the same direction longitudinally but in opposition in a vertical direction at right angles to the length of the screed. As shown, the tool 1 is supported by a flexible mounting 11 on the carriage 5 fitted with handles 4. :and the longitudinal vibrations are produced by rotating eccentrically placed masses 19 and 20 fixed to gear wheels 14 by shafts 13 carried by a mounting 2 attached to the tool 1, the centre shaft 13 and gear 14 being driven by electric motor 3 rotating outer gears 14 which are freely mounted. The sum of the masses of eccentrics 20 equals that of eccentric 19 so that in the position shown by full lines in Fig. 3, the forces produced by rotation of the masses are equal and opposite producing no resultant force whilst in the position shown in broken lines a resultant force to the left is produced; a corresponding force to the right is produced 180 degrees later in the rotation of shafts 13. If desired, the screed can be arranged to operate with longitudinal and vertical vibrations and by tilting the shafts 13 forwards a resultant force can be obtained which will cause the screed to move forwards over the surface to be treated.
GB3442157A 1956-11-10 1957-11-05 Improvements in or relating to screeds Expired GB819621A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE819621X 1956-11-10

Publications (1)

Publication Number Publication Date
GB819621A true true GB819621A (en) 1959-09-09

Family

ID=20345617

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3442157A Expired GB819621A (en) 1956-11-10 1957-11-05 Improvements in or relating to screeds

Country Status (1)

Country Link
GB (1) GB819621A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4170549A (en) * 1975-12-08 1979-10-09 Johnson Louis W Vibrating screen apparatus
WO1999007940A1 (en) * 1997-08-05 1999-02-18 B-Mac, Besloten Vennootschap Met Beperkte Aansprakelijkheid Vibrating device for processing a floor layer
BE1011312A3 (en) * 1997-08-05 1999-07-06 B Mac Besloten Vennootschap Me Vibrating device for treating a layer of flooring
US6976805B2 (en) 2001-10-09 2005-12-20 Delaware Capital Formation, Inc. Light weight apparatus for screeding and vibrating uncured concrete surfaces
US7850396B2 (en) 2008-01-03 2010-12-14 Somero Enterprises, Inc. Wheeled screeding device
US7891906B2 (en) 2008-02-27 2011-02-22 Somero Enterprises, Inc. Concrete finishing apparatus
US7909533B2 (en) 2001-10-09 2011-03-22 Somero Enterprises, Inc. Apparatus for screeding uncured concrete surfaces

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4170549A (en) * 1975-12-08 1979-10-09 Johnson Louis W Vibrating screen apparatus
WO1999007940A1 (en) * 1997-08-05 1999-02-18 B-Mac, Besloten Vennootschap Met Beperkte Aansprakelijkheid Vibrating device for processing a floor layer
BE1011312A3 (en) * 1997-08-05 1999-07-06 B Mac Besloten Vennootschap Me Vibrating device for treating a layer of flooring
US6293780B1 (en) * 1997-08-05 2001-09-25 B-Mac, Besloten Vennootschap Met Beperkte Aansprakelijkheid Vibrating device for processing a floor layer
US6976805B2 (en) 2001-10-09 2005-12-20 Delaware Capital Formation, Inc. Light weight apparatus for screeding and vibrating uncured concrete surfaces
US7909533B2 (en) 2001-10-09 2011-03-22 Somero Enterprises, Inc. Apparatus for screeding uncured concrete surfaces
US7850396B2 (en) 2008-01-03 2010-12-14 Somero Enterprises, Inc. Wheeled screeding device
US7891906B2 (en) 2008-02-27 2011-02-22 Somero Enterprises, Inc. Concrete finishing apparatus
US8075222B2 (en) 2008-02-27 2011-12-13 Somero Enterprises, Inc. Concrete finishing apparatus

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