USRE12542E - Concrete-block machine - Google Patents

Description

No.12,542. REISSUED OCT. 23, 1906.

w. s. BARKER. CONCRETE BLOCK MACHINE.

APPLICATION IILEJLAUG. 20. 190B.

. 2 SHEET8-BEEBT 1.

w. M m mm 8 A WJ/ WITNESSES v 4 APP/i REISSUED 001?. 23, 1906.

I w. s. BARKER. CONCRETE 121,001: MACHINE.

APPLIUATIOH PIL ED AUG. 20. 1906.

is M f '4 u 9 H A m; W I.

Fig.5.

Fig.6.

INVENTHR 5 Gem/k; By

mg ATTDRNEZY Specification of Reissued Letters Patent;

Beissued Oct. as, 1906.

Original No. 800,200,11ated Saptembar'fifi, 1905. Application for reissue filed August 20, 1906. "Serial N6. 381.37.7-

To all whoni, it mdy concern:

. marked thereon, which form a part of this ledo, in the county Be it known that I, WILLIAM S. BARKER, a citizen of the United States, residing at T- Ohio, have invented certain new and useful Improvements in Concrete-Block Machines; an I do declare the following to be a full, clear, and exact descri tion of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanymg drawings, and to the figures of reference specification.

TlllS invention relates to improvements in 'concrete-blo'ckbuilding machines.

' The object of the invention is to provide a machine with a greatlpincreased capacity for making building-b ocks of the above type of various sizes and for tampingthe face of the block with the face upward, any desired face-surface being possible.

\ The machine has the following advantages:

, A coarser and wetter grouting may be used it from sticking to the face or tamping plate.

1 six by sixteen inches in the face,

for the body of the block, and owmg to the face pfthe block being tamped a finer material m a somewhat drier condition than the grouting may be used to form the face. In,

other words the material'of the face may ossess a suflicient dryness that will prevent The block being only four inches high and the block willstand up u on the pallet in a very wet condition, which is desirable. the face being u ward and the tamping thereof being pe mpacts the face'of the block becomes very thatthe capacity of the machine is greatly increased, owing to the simplicity of its op eration.

vated and the front 'wa l of the mold-bole broken away. Fig. 2 is a side elevation with the mold-box shown in section and the tamping face-plate elevated. Fig. 3 .is a rear view of'the mold-box, with the temp face plate elevated.

" j isaside sect ona view of ,the;mol d-box.on

' of the tamping face-plate:

the line a: a: ofFigfL" 3 and portionsof the Fig. 5is a of Lucas and State of Because of ormed by a repetition of a front elevation of the ma as shown in 1,

horizontal sectional plan view of the moldboX, showing the same adapted for the making of two buildin -blocks-1n one operation. Fig. 5 is a detail o a feature shown-1n Fig. 5. Fig. 6 is a detail of a tampinglate used with features shown in Fig. 5, s owing an end view of same. Fig-7 is a detail view of means for constructing ventilatin -channels in the outer surface of the block. I ig. 8 is a detail sectional view of a core employed in the construction of a hollow block.

. Throughout the specification similar reference characters indicate corres ending parts. 1 designates the parts oft e framework which su ort the mold-box 3 in which the concrete-blocks are formed. 4 ,the movwhich is centrally supportedv on a ,vertically- ;mov'able standard 5, with intervening plate 6. The standard, 5 is guided in its moveis secured to theunder side of the mold-box, and at its lower end it is guided by passing through a bar 7, which connects the lower portions of the frame. One side of the standard 5 is provided with a rack 8, which is engaged by a pinion 9 on shaft 10, the latter being operated b a crank 11 to raise and lower the pallet 4. he lower position of the pallet is adjusted for different widths of locks by means of adjusting-screws 12, which penetrate ears with the under side of the baselate 6 ,which lies below'and sup orts the pal et.

14 designates't e face or tanzping plate, which forms the outer or expose surface of the block and which may be of an ple, rock face, stone face, &c. This tampin or face plate is rovided with two aperture lugs 13, throug which pass 'de-rods 16 and which are madefast to sai rods. These guide-rods are supported atthe rear of the mold-box in apertured lugs 17 which pro? ect from the rear side of said mold-box, said ugs 17 having secured to their upper ends aperrods.

The rods 16 move in said lugs and cones in the operations of tampmg- The means for preventing the dirt from entering the. apertured bosses 17 throu rods move in the operations of t plate. The lower ends of said ide-ro are connected with a cross-bar 18 mths form of an angle in cross-section, as shown in Fig. 4,

ments by means of a suitable collar 7, which tured cones 17 which also receive said guideable bottom 'or pallet of said mold-box,

2 and make contact suitable surface, design, orconfigulationor examdense and hard. It may befurther stated purpose of these cones17 is to act as a caper h whi'chthe e tam ingthe connections ofsaid guide-rods with said cross-bar be b{ means of screws 18. Secured to t e ottom of the mold-box in a central position relatively thereto and crosswhich receives a b wise thereof is an this bolt is tapered in the form of a latch tured-lug 2 1 and ed t i may be provide and lies in a position to eng e the cross-bar 18, as shown 1n Fig. 4,- to hold the guide-rods 16 and therewith the tampin face-plate in an elevated position. The be t 19 is maintained in an enga position by means of a coilspring 19", and the outer end of said bolt is provided with a finger-piece 19', by which the bolt is drawn outward to release the cross-bar 18 and to permit the guide-rods 16 and therewith the tamp' scend to their lower or 0 In elevating the said gui with the tamping facerative position. e-rods and therelate after the operaand pushes said it outwardly, after which said bolt engages the lower slde tains the tampingtion in a manner stood. Y

of said bar and mainlate in an elevated posi- 4 at will be readily under- Thetamping faceplate 14 is provided with" two handles 14 by which the tamping opera-- 3 osition of-the tions are performed, and the e depth of its face-plate. with reference to t movement inthe tamping operations within the "mold-box is regulated by adjustingscrews 2.0, which are regulated with reference intothe larger openings 25and are fitted with to the'upper ledges 20 of the mold-box.

g 21 desi of the mo d-box b pro'ecting into an aperer'ein by means'of a set-screw. This arm supports at its, upper end a retractile spring 21''. This spring. is connected to a projection 21? on the upper side of the tamp face-plate 14.

The mold-boxi g has two; removable end plates 3, which are used inthe construction of ordina b1ocks-for example, those blocks which lie etween the corners of a structure. As shown in Fi L 5 and 5', said end plates with oves 3" on one side. In the event that a s1 le block is made in the mold-box the end plates 3' are placed thereinwith the grooves 3" on the outside. It ma be-stated that in the manufacture of two b ocks within a single mold a divisionplate 3" may be usedas shown-in Fig. 5, in which event the end lates 3 are placed with the grooves 3" on' the inside to receive the division-plate 3'". 1

By means of the frame shown in Fig. 7 a buildingblock having ventilating-grooves around its sides in may be obtained. This consists of an oblon rectangular frame consisting of side and end in the cross-sectional view, the side and and pieces are half-oval,

alpe'rtured cross-piece 19, o t -The rear end of' face-plate to deis an ates an arm fixed to the rear side the block 'for the reason that true e and a retaining-device to hold the p the middle portion thereof the. rounded portion lying inwardly and rming a core around the middle portion of the block. In practice this frame occupies a middle position in the core-box 3." The necessary amount of grouting is first laced in the mold-box and then the frame shown in Fig. 7). is placed in position the mold and the remaining portion of the mold is filled with grouting to a point where the facing material placed in position. The

-core-frame removed after the block has been elevated upon the pallet 4 above the mold. This removal of the mold-block from the mold-box is enabled b a suflicient tum of. the pinion-lever 11. here that in molding two building-blocks at onetime by'means of the aartition or division plate 3 aftamping face-plate 14 is used which has -two face impressions thereon fnstead of'one in order that the two se arate felce lim ressions may be given to the ace of t e )u t may be stated ding-block. The face-plate in this case has a groove 14", Fig. 6, to straddle the edge of wall 3". In molding a hollow block the core 24 (shown in Fig. 8) is employed.

"s core is of suflicient dimensions to allow a suitable amount of'the material to enter around the sides of said core. As shown, the core is provided with open spaces 25 in the lower portion thereof, extending from which opening 26 of smaller diameter and fining through the top of the core. Within t space or opening 26 is placed a metallic handle '27, the lower ends of-which extend heads or nuts 28, which act to prevent the handle27 from pulling out. of the core when said handle is gras ing the core from t e block. It is sirable that the handle 27 engage the lower by the hand in"remov-. highly doi portion of the core in lifting seldc'ore from ment between the handle and the core be at a higher po'intin the core there will be great danger of the molded block being damaged in the removal of the core. The upper portion of the handle 27 is accessible to the hand owing to the top of the core being In out. The pallet 4 is held'u with the molded block thereon in a. position or the removal of said block by a dog29, which enters a notch 30 in the lower end of the standard {9. The .tamping-or face late 14 is maintained in a osition to t e mold, and each said Face-plate is identically in the same position.

Having described my invention, I.clain1-- tof.

if the engage- 1. A mold-provided with a tamging-plate a erative.

2. A mold-box, glide-rods, ii tampfi' nee toholdthe plate withdrawn from the 1.-

plate guided by the rods and arate 3. In a concrete-block machine, a moldbox, a face-plate for tamping the of the block, rods attached to the rear side of I said face-plate and in guide-sockets in the rear of the mold-box, and retaining devices to hold the face-plate in an elevated position.

, verse bar to hold the face-plate in an elevated position.

5. In a concrete-block machine, a moldbox having interior-end plates with reversible working sides, a face-plate fortamping the face-surface of the block, handles attached to said face-plate, ro'dsto the-upper ends of which the face-plate is attached, guide-lugs on the rear of the mold-box through which said rods project, a cross-bar connecting the lower ends of. said bars and ly- V ing parallel with the mold-box and therebelow, a latch lying transversely of the moldbox and therebelow and engaging said crossbar to holdthe face-plate in an elevated position. a i

6. In a concrete-block machine, a frame, a stationary mold-box mounted thereon, a pallet forming the bottom of said mold-box, a standard upon which said pallet is supported, said standard having a rack attached to one side thereof, a handled pinion engaging said rack whereby the pallet is raised and lowered, means engaging the lower ortion of the standard to hold the pallet in its elevated position, a face-plate for-tamping the surface of the block, rods upon the upper ortion of which said face-plate is supporte a transverse bar to whic said rods at the lower ends are attached, and a latch mounted below the mold-box and engaging said bar to hold the tamping-plate in its elevated position. 7. In a concrete-block machine, a' core for forming a hollowblock, said corehaving vertical openings 26 joined at the upper surface of the. core by a horizontal channel which is exposed at the surface of the core, the lower ortions of said openings terminating in enarged'openings 25 and forming shoulders, a bail or handle 27 projected through said 0 enings 26 ,and the lower ends of said bail or andle lying within the openings 25, heads on said ower ends engaging with the shoulders formed by said openings 25 whereby the bail or handle 27 is caused to engage the core at points in the lower portion of said core, substantially as and for the urposes specified.

8. In a concrete-bloc machine, a moldbox, a movable pallet-frame, the bottom of,

said core-box, a face-plate constituting the tamping-plate, rods to the upper ends of which said face-plate. is rigidly attached, a cross-bar attached to the lower ends of said WILLIAM S. BARKER.

Witnesses:

. GERTRUDE A. DELANEY,- GEo. E. KIRK.

rods, said cross-bar 1 'ng parallel with the 1

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