US2462644A - Mortar spreader - Google Patents

Description

Feb. 22, 1949. T. KIMQRA 2,462,644

MORTAR SPREADER Filed April 5, 1946 2 Sheets-Shee't 1 A fg- Feb. 22, 1949. T. KIMURA 2,462,644

MORTAR S PREADER Filed April 5, 1946 2 Sheets-Sheet 2 Patented Feb. 22, 1949 MORTAR SPREADER Tsuchinojo Kimura, Mountain View, Calif., as-

signer of fifteen per cent to Byron Ver Ploeg,

Oskaloosa, Iowa Application April 5, 1946, Serial No. 659,771

(Cl. I2-128)- 1 Claim. 1

This invention relates to new and useful improVements and structural renements in mortar spreaders and the principal object of the invention is to provide a device of the character herein described, whereby mortar may be applied to courses of masonry such as bricks, stone, concrete blocks, or the like, in a novel, systematic and a highly efficient manner.

Generally, the invention consists of a matrix adapted for positioning on the course of masonry, the mortar being applied to this matrix and distributed by an associated spreader plate. The spreader plate enters the matrix to a predetermined depth and not only serves to distribute the mortar equally, but also assures that the density and thickness of the mortar are uniform throughout the entire area to which it is applied. In addition, the spreader plate has a compressive action which substantially minimizes the formation of air bubbles, and all surplus mortar gathers at one end oi the matrix where it can be conveniently reclaimed to prevent waste. In the instance of concrete block masonry where the blocks are formed with cored holes, provision is made in the matrix to prevent the mortar from flowing into such holes, and the matrix is also adapted to accommodate reinforcing rods, such as are usually employed in concrete masonry. Finally, means is provided on the spreader plate for forcing mortar between the adjacent ends of the bricks or blocks as well as for spreading the same on the upper surfaces thereof, thereby eliminating the necessity of separately performing the former operation.

It will thus be apparent that by using the invention, the mortar spreading operation may be performed with relatively greater speed and eciency than has heretofore been possible and thatV which cannot easily become struction of parts as illustrated in the accompanying drawings, in which:

Figure 1 is a. fragmentary perspective view, showing a course of concrete blocks and mortar applied thereto by the invention,

Figure 2 is a perspective view of the matrix,

Figure 3 is a perspective view of the spreader plate,

Figure 4 is a cross-sectional View, showing the invention in use,

Figure 5 is a fragmentary perspective View, illustrating a course of bricks and mortar applied thereto,

Figure 6 is a perspective View of a modied embodiment of the matrix, the same being adapted for use with bricks,

Figure 7 is a perspective View of the spreader plate used with the matrix shown in Figure 6,

Figure 8 is a cross-sectional view, illustrating the modified matrix in use,

Figure 9 is a perspective View of a further modified embodiment of the matrix,

Figure l0 is a plan View of the spreader plate assembly used with the matrix shown in Figure 9,

Figure 11 is a plan view of the spreader plate per se, and

Figure 12 is a plan view of a pusher plate used with the plate in Figure 11 to form the assembly of Figure 10.

Like characters of reference are used to designate like parts in the specification and throughout the several views.

Referring now to the accompanying drawings, more particularly to the Figures 1 to 4 inclusively, the invention consists of the matrix designated generally by the reference character I5 and the spreader plate I6.

The matrix I5 comprises a pair of spaced parallel side members II, connected together by the end pieces I8 and by the intermediate struts I. In effect, the end pieces I8 are formed by a perimetric strip 20, this being secured to the sideV members I'I by suitable bolts 2|, the latter also being Iused to attach the side strips 22 to the side'- members, for the purpose of supporting the struts The matrix is of an elongated form and a longitudinal strut 23 connects the ends pieces I8 and intersects the struts I9, as will be clearly apparent from the accompanying drawings.

The core blocks 24 are provided at the intersection of the struts I9 and 23 and further core blocks 25 are formed at the junction of the struts 23 with the end pieces I8. v

The inner lower edge portions of the side members I1 are bevelled downwardly and outwardly as indicated at 26 and the inner upper edge portions are bevelled upwardly and outwardly as at 21. The underside of one or more oi the blocks 24 and 25 may also be formed with a bevelled portion 28, the purpose of which will presently be described.

The matrix I isv adapted for application to a course of masonry such as the concrete blocks 29, this being best shown in Figure 4. It will be noted that the bevelled portions 26 will assist in the application of the matrix to the blocks and the bevelled portion 28 will engage one'ofY the core-d holes 30 usually providedy in the blocks 29, the portion 28 thus serving to center the matrix in position.

The blocks 24 and 25 will effectively cover the holes 30 to prevent the flowing of mortar vthereinto, the mortar being poured or otherwise suitably applied to the matrix, approximately to-or slightly above the level of the upper edges of the struts I9, 23.

The spreader plate i6 is then used to distribute the mortar, this plate consisting'of a holder 3l provided with a suitable slot 32 to form a convenient-handle, and :a blade 33. is secured. to the holder 3| by the screws or bolts 34.

The lower cornersy of the blade 33 are cham.- fered as at 35 in conformity with the bevelled-portions 2;'I and when' the spreaderis placedrn. use, itis' slid along. the; upper.. edges of the side members I1, as will be clearly apparent from theac.- companyingdrawings.I The blade 33 will extend into the matrix- I5 tov a predetermined depth, thereby assuring that the mortar 36 is of uniformthickness.

The outwardly bevelled. edges 21 will add a trough-like eITect to the matrix and as the scraper I6 is operated, the surplus mortar'will be pushed toward one end ofthe matrix, wherefrom it may subsequently be conveniently reclaimed. If 1desired', the invention maybe used in pairs, ther same being longitudinally aligned and placed end-toend, and the surplus mortar from one matrix being pushed into the matrix adjacent thereto. When this operationis completed, the rstmatrix mayv again be positionedv adjacent to-the second and the waste eliminating and time-saving character of the. invention thus becomes readily apparent.V

It will be noted that by applying even pressure to the spreader plate. I6, thelayer of mortar 36 will' possess uniform density. This pressure is applied by tilting the spreader forwardly inits` direction of travel and the formation of air bubbles in the mortar will"also be thereby eliminated.

After the matrix is removed from the masonry, themortar will assume the form best illustrated inFigur'e l, wherein the openings 31 were formed by the blocks. 24, 25, over each of the coredholes 30 If desired, suitable reinforcing rods 38 may bev passed' through the' masonry, asl w'ill'rbe clearlyl apparent from the accompanying ydrawings'.-

With reference now' to the accompanyingV Figures 5to 8"in'clusively; tlresame illustrate a modied embodiment of the invention, adapted for the applicationv of mortar to courses of bricks and consisting of the matrix 39 and the spreader plate 40.

The matrix 39 consists of a perimetric strap 4I forming the side strips and end pieces 42 and' 43 respectively, and supporting the intermediate struts-44'.

The side members 56 are suitably secured tothe lil strips 42, the members 45 being formed with the upper and lower bevelled portions 46, 41 respectively.

The spreader plate 40 is formed with a linger slot 48 and a handle 43, the blade 50 being formed integrally with the body of the spreader and provided with bevelled side edges 5I.

When this embodiment of thev invention is placed in use, the matrixis applied to the course of bricks 52 and the layer of mortar 53 is formed in the manner already described. It should be pointed out that in this embodiment, as in the one already set forth, the struts I 9, 23, 44, Will leave a slot, so to speak, in the layer of mortar when the matrix is removed. This condition is indicated in the two embodiments by the phantom lines 54, 55 respectively, but it should be understood that the width of such slot is relatively so small that the semi-uid consistency of the setting mortar will automatically engulf the same, without detrimental effects.

lnY the two foregoing embodiments of theinvention, the layer of mortar has beenV applied onlyto the top surfaces of the bricksor blocks, while the mortar 56, 51 between the adjacent. ends of theV bricks. or blocks respectively, would;

necessarily have to be individually applied.v before che bricks or blocks are positioned in the course.

To eliminate this necessity and to substantially increase the utility of the invention, the further modified'embodiment of the matrix and spreader plate has been designed, as illustrated in Figures 8 to il inclusively.

rThis additional embodiment may be applied t0 either or both the concrete block' and the brick variations `of the invention, and consistsV of'pro- Viding the side members 58 of the matrix 59 with;

a pair of elongated.. dove-tailed recesses eil, the same being disposed in the inner surfaces adviacent the. upper edges of the side members, as

, and extending to one side thereof. The plate Si.

also formed with a pair of projecting ears 64, the latter being adapted for slidable engagement with the recesses eil when the spreader is inserted` into the matrix 59.

The side edges 55 of the plate 62 are inturnedV to form suitable guide channels and a pusher plate 65 is slidable in these channels, for the purpose presently to be described.

The plate E5 is also formed at one end thereof with a suitable hand grip 51, this being disposed at the relatively opposite side to the handle 63, in order that the handle and the hand grip do interfere as the plate is manipulated in the plate 52.

When this embodiment of the invention is placed in use, the presser E! as a whole is positioned in the matrix with the ears 54 engaging the. recessesill` and byV raising the` plate 66 sc that thelcwer edgeA 58 thereof. is above thelower edge the plate G2, and by sliding` the assembly 6I longitudinally in the matrix, the lower edge 69 will distribute and compress the horizontal layers of mortar (35, 53), in the manner already described.

Simultaneously, the spaces between the adjacent ends of the bricks or blocks may be effectively filled by sliding the plate 56 upwardly and downwardly a number of times in the plate 62,

so that the lower edge `(i8 will force the mortar into-the spaces; as shown at 56 and 51. The increased utility of the invention thus becomes clearly apparent.

1t will be noted that the inner lower edge portions 'I of the side members 58 are not bevelled as were the aforementioned edge portions 28, the portions 'i6 being substantially straight to prevent the oozing of mortar outwardly from the spaces 53 and 5?. If the straight walls 16 are detrimental to convenient positioning of the matrix on the course of masonry, the lower portions of the side Vmembers 58 may be hinged and permitted to swing outwardly while the matrix is being applied. After such application is made, the hinged portions may be swung against the masonry and securely locked in position.

Such modication however, is only a mechanical expedient which is to be taken into consideration when the invention is being `Constructed for use and it should be noted in this connection, that various combinations of the components herein described may eventually be employed, such as the possible use of the plate 62 in association with the matrix 39, with the recesses 7| of the ears 64 sliding on the upper edges of the side members 45.

Therefore, while in the foregoing there has been shown and described the preferred embodiment of this invention it is to be understood that minor changes in the details of construction, Combinan tion and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as claimed.

Jl/"hat I claim as my invention is:

A mortar spreading apparatus comprising in combination, a matrix adapted for positioning upon the work and including a. pair of spaced parallel side pieces, a spreader comprising a substantially upright plate positioned between said side pieces, said plate including a work-contacting lower edge portion, a handle provided at the upper edge of said plate, a pair of laterally projecting ears formed at the side edges of said plate adjacent said upper edge, said ears slidably engaging said side pieces, the remaining side edge portions of said plate being inturned and doubled upon themselves to form a pair of spaced parallel guide channels, a panel slidably positioned in said channels, the lower edge portion of said panel being retractably projectable beyond said work-contacting edge portion, and a hand grip provided at the upper edge of said panel.

TSUCHINOJO KIMURA.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 856,363 Ormsby June 11, 1907 1,082,802 Full Dec. 30, 1913 1,130,532 Neuberger Mar. 2, 1915 1,423,316 Giovagnoli July 18, 1922 1,478,776 Walker Dec. 25, 1923 1,833,582 Kavanagh Nov. 24, 1931 1,988,746 Neptune Jan. 22, 1935 2,094,703 Hitzman Oct. 5, 1937 2,179,563 Sassano Nov. 14, 1939 FOREIGN PATENTS Number Country Date 43,012 Sweden 1917 118,145 Switzerland 1926

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