US985035A

US985035A - Form for the construction of concrete walks, floors, curbs, gutters, and like structures.

Info

Publication number: US985035A
Application number: US59607510A
Authority: US
Inventors: Mark Stewart Hotchkiss
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-12-07
Filing date: 1910-12-07
Publication date: 1911-02-21
Anticipated expiration: 1928-02-21

Description

M. S. HOTCHKISS. FORM ron TBE CONSTRUCTION oF UONGRBTB WALKs, rLooRs, UURBs,-GUTrBRs, AND

LIKE STRUCTURES.

APPLIOATION FILED DEO. 7, 1910.

985,035. Patented Feb.21, 1911.

3 SHEETS-SHEET 1.

ATTORNE Y 8 M. S.HOTGHKISS. FORM POR THE CONSTRUCTION or CONCRETE WALxs, FLOORS, CUBs, OUTTBns, AND,

v LIKE STRUCTURES.

APPLICATION H1121) DEO. '1. 1910.

985,035. Patent-,ed BT11211911.

' 3 SHEETS-SHEET 2.

mmm/1 /W/W/f /10 ron/mss TTURNEYS M. S. HOTCHKISS. y FORM FOR THB CONSTRUCTION OT CONCRETE WALKS, FLOORS, CURBS, CUTTBRS, AND

- LIKE STRUCTURES.

APPLICATION FILED DBO. 7, 1910.

985,035. Patented Feu21,1911.

3 BEEETB-BHEET 3.

UNITED sTATEs PATENT oEEICE.

MARK STEWART HOTC'HKI-ss, OF EINGHAMTON, NEW YORK.

FORM FOR THE CONSTRUCTIONOF CONCRETE WALRS, FLOORS. CURES, GUTTERS, Ann

LIKE STRUCTURES.

PatentedpFeb. 21, 1911.

Application inea December 7, 191e. fseria'l No. 596,075'.

To all whom it may concern: f

Be it known that I, MARK 'STEWART' HOTCHKISS, a citizen of the United States, and a resident of Binghamton, in the county of Broome and State of New York, have invented a new and Improved Form for the' Construction of Concrete -Walks, Floors, Curbs, Gutters, and Like Structures, of which the following is a full, clear, and e'X- act description. v

The object of the invention to provide 'I a new and improved form for the constructionof concrete Walks, oors, curbs, gutters, and-like structures, and arranged to insure perfect alinemnt of the sections of the form and stability of the form without requiring stakes orbraces, and to permit of convenlently and quickly assembling the form parts into a self-sustaining mold. The. form when set up has compartments adapted'to receivev plastic material for'forming-the structure, and 1n whlch the sections are spaced apart to allow ready expansion and contraction vdue to atmospheric or other causes, or to permit the independent yremoval and replacement of sections of the completed structure. The construction of the forms permits the ready disassemlolingv and removal ofthe form parts prior to the hardening of the plastic material, without danger of disturbing or mai-ring the sections, so that the molded surfaces may be readily finished, and so that the form may be remployed immediately, thereby reducing the number of form parts required.

The form consists of interchangeable parts which may be variously combined for the several kinds of construction above melitioned. y

For the purposes mentioned use ismade of sides spaced apart and their lower edges disposed in approximately the same horizontal plane, the sides having 'bases for rest-v ing the sides on vthe ground or other support, and top surfaces for guiding a strikeofl. tool for shaping the upper surface of the structure and removing surplus plastic materials, the sides being provided intermediate their ends with oppositely disposed slots or apertures; thin transversely-disposed division plates extending between the said sides and having their ends abutting against the inner faces ofisaid sides, the said division plates being in general fiush at top and'bottom with the top'and base surfaces of the said sides, the said division plates being shaped to conform to the cross-section of 'the-structure to be molded, thereby allowing their upper edges to be used for. guiding a 'strike-off tool to shape the upper surface of the structure, and the said division plates being providedat their ends with tongues extending through the said side'apertures,

whereby the sides and division plates are held in upright position, and removable locking means in engagement with the projecting outer ends of the said tongues and, the outer faces of the said sides, to lock the which similar characters of reference indie" cate corresponding parts in all the views.

Figure 1 is a perspective View of the form setup and showing some compartments com, pletely filled and finished with plastic ma# terial, and. another compartment but partly filled with the plastic material. Fig. 2 is a plan view of the same, parts being in section. Fig. 3 is a side elevation of a portion of the same. Fig. 4 is a transverse sectionv on line 4 4 of Fig. 2. Fig. 5 is a side view of a division plate to be used in forming crossings. Fig. 6 is a side elevation of a modified form of the means employed for fastening the adjacent ends of successi-ve side sections together. Fig. 7 is a sectional plan view of the same on the line 7 7 of Fig. 6.

Fig. 8 is a cross section of la modified form of the means for fastening a division plate to a side beam, the section being .on the line 8 8 of Fig. 9. Fig. 9 isa sectional plan view of the same on .the line 9 9 of Fig. 8. Fig.410 is a side elevation of a modified form of the means for fastening adjacent ends of successive side sections` together.

Fig. 11 is a' like view of another modified formof the same. Fig. 12 is a lan vlew of a modified form of the means or fastening a division plate in position on a side. I Fig. 13 is a cross section of the same on the line 12-12 of Fig. 11. Fi 14 is a sectional perspective view ofy anot er modified form of the means vfor fastening a division plate to the side section. Fig. 15 is a transverse section of the same on the line 'l5-15 of Fig.

14. Fig. 16 isa perspective view of a form for forming a curb and gutter, showing one compartment empty and the others ti ll ed.' Fig. 17 is a side view of one of tliedivision plates. Fig. 18 is a perspective view of a form for forming a curb, two o f the compartments being iilled .and the other empty; and Fig. 19 is a side view of one of the division plates. l

` The form for laying concrete sidewalks consists essentially of sectional sides A, A', transverse division plates B, interlocking means C for fastening theadjacent ends of the sections of a side A or A together, and fastening devices D for fastening the division plates B and the sides A, A together.

The sides A, A', as shown in Figs. 1 to 10,.

inclusive, are preferably formed of channel beams, each having a bottoniiiange'Az, a top iange A3 and a web A4, the channel beams being set up so that the webs A4 are disposed vertically, and the ianges A2, 'A3 extend outwardly, t-he lower flange A2 forming a base for supportingthe beam onfthe ground and the upper flange AS forming a guide for supporting a strike olf tool,-to remove the surplus vplastic material, as herein- A3, A2 of the-sides A, A. By reference to l con after more fully explained. The webs A4 4are provided with vertical slots or apertures A5, preferably spaced equidistant, the slots A5 of thefside A being directly' opposite the slots A5 on the other sideA, to form pairs 0f transversely registeringslots, for the reception of tongues B', lformed integrally on the ends of the division plates B. Each division. plate 'B is made thin and is of a height corresponding to the height of the sides A,

A', so that when the tongues B' of a division plate B engage a pair of lregistering apertures A5, then the division plate is held 'in a vertical position, and its top and bottom are flush with the top and bottom flanges the drawings, it will be noticed that the ends of `each division plate B abut against the innerV surfaces of theff'sides A, A'. Each tongue B' is provided` with a slot'BzQfor the reception of a key D',iadapted to engage the outerv face of the web A4, seas" to "securely fasten the division plate B in position yat the' sides A, A', it being understood that when the key D' 'is driven home, the sides A, A', are moved in firm engagement with the ends ,of the division vplates B, to form a rigid structure. 1; v

In order to join the adjacent endsfof successive sidev beams of the-sides'A,-A', use is made of the fastening devicesC, shown in Figs. 1, 2 and 3 as consisting of a tongue'fC' secured to the outside of the web A4, lat one end of the beam, to project vbeyond thesame and Jenter a socket C2 attached to the web A4 at the eii'dof the next successive beam, as will be readilywunderstood by reference to Figs. 1, 2 and 3. s Thus successive beams are fastened together at 'their adjacent ends so that the inner surfaces of the sides A, A', form a continuous and practically unbroken surface, and the side beams A, A form with the division plates B compartments for the reception of the concrete orother plastic inaterial E..

When the form is set up it is sufficiently firm and rigid to require no further braces or stakes for Vholding the sides in alineinent, and the form is not liable to shift, owing to its rigidity, and consequent-ly the workmen can readily fill the concrete or other plastic material E into the compartments, one after the other, and finish the same with the strikeoff tool guided on the upper edges of the forni, to insure the formation of a smooth top surface. Before the plastic material hardens, the locking devices D are removed, and the side beams are detached laterally from the division plates, the division plates are then withdrawn from between adjacent sections of the walk; thus allowing the finishing of the joints between said adjacent sections, and the exposed sides of said sections.

For the construction of crossings, I use division plates of the form shown in Fig. 5. The plate Bi is'similar in construction to the plates B except that it has its upper edge curved, so that the crossing will have acon-` veX or curved upper surface.

It is understood that in takingthe'form apart it is necessary only to remove the wedges D, so as to allow of moving the side beams outward, away from the sides of the wa1k,after which the division plates `B may be lifted or drawn out, thus leaving the sidewalk or crossing in sections, spaced apart so as to permit the expansion and contraction `of the sidewalk sections.

Although the form above described, is the preferred one, other interlocking end-engaging means on the side faces of the side bars may b e'used. For instance, instead ofthe tonguesI C and sockets-D other sockets such as F may be secured to the webs A.4l at the ends 'of the adjacent beams and into said socketsmay be drivenwedges F', F2. from the opposite sides so as to lock the beams together, as seen in Figs. 6 and 7.

As shown in Fig. 10, the locking device consists of a socket Gr` fastened to the end of one beam, and through the socket extend links or hooks Gr' pivoted at G2 on the beam carrying the socket G, the free or hook ends' ofthe said hooks G engaging studs G3, secured on the web of the adjacent, beam, so as to hold the tw'o beams interlocked one with the other and each in alinement with the other.

As shown infFig. 11, hooks H :are employed,riveted or otherwise fastened'to the web A* of onebeamfto hook onto studs H on the web A4 of the adjacent beam.

The means for fastening the division means of keys D',

tened together by plates B in position on the corresponding side beam may also be varied, for instance, as shown in Figs. '8 and 9, the division plate B is provided with a tongue B3 at each end, and on the tongue is formed a reduced portion B4, engaged by a U-shaped spring I, riveted in place in the reduced portion by a rivet I', the spring having its free ends I2 extending inwardly, to abut against the outer lface of the web A4 after the tongue B?y is pushed through the corresponding slot A5 in the web A4. The tongue B3 is provided with an opening B5 for the free ends lI2 when the tongue B3 is pushed through the slot A5, -as before explained.

Although channel beams having a. metal web and metal anges are preferred in the lconstruction of-the sides A, A', the latter may be made in the form of beams (see Figs. 12 and 13), having awooden web J and the bottom and top flanges J', J 2 'of metal. Each divisi-on plate K is provided at each end With a stud K', passing through an aperture in the web J, and on the end of the stud screws a nut K2 against a Washer K3 resting against the outer face of the web J. In order to hold the division plate K in a vertical position, t-he end portions thereof extend into vertical slots J3, formed in the inner faces of theside bea-ms. On 'removing' the nuts K2 the side beams can be readily moved away from-the sides of the sidewalk, to allow of finishing the said sides prior to the concrete lhaving set and hardened.

In the construction disclosed in Figs. 14 and 15 the side beam is formed of a Wooden web Land metal bottom and top flanges. L', L2, which protect the web and also serve the lsame purpose as the flanges A2, A3. The division plate N is provided at each end with a tongue N', projecting through a slot in the web L, the tongue abutting with its bottom and top edges against the flanges L', L?, and the tongue having bottom and top notches N2, N8 for engagement by the side arms of a U-shaped key O, resting against the flanges L, the division plates N are preferably let into recesses L8 formed in the inner faces of the side beams, as shown in Fig. 14.

In Fig. 16 I have shown a formv -for constructing a curb andA gutter. In this form the side beams are similar in construction to the side beams shown in Fig. 1 and are fasp similar fastening devices C', C2. One of the sides of the form is formed by two superimposed beams A' while the other side is formed by a singlev beam A. The division plates By are shaped to conform to a cross-section of the curb and gutter to be constructed, but with the addition of tongues B" for the-securing of one or more side beams A or A' at either end by the same as the plates B in Fig. 1. -The division plates By serve as y forms.

and L2, as plainly shown. The ends ofl guides for striking oli thesurface and for securing uniformity in the shape and dimensions of the curband the dip of the gutter. The number of side beams A or A' used on either end is immaterial and for this purpose'it is possible to utilize the side beams of sidewalk forms if desired. `The top side beams on either end are preferably flush with the adjacent upper edge of the division plates.

For constructing a curb I use the form shown in Fig. 18. In this form I also use side beams similar in construction to the beams shown in Fig. 1, and fasten them together by similar fastening devices C', As shown a plurality of side beams A, A' are employed on each'side, as many being used as the Iheight of the curb requires, and the division plates BZ are secured to the said beams by tongues B' and keys D' the same ble of wide variation in shape, and the number and location of the tongues on the said platel can be varied and changed, the number and location being determined by the height of the 'plates and the number of side beams employed.

As will be seen the side beams are adaptedA to be interchangeably used for the several This not only facilitates the forming of different division plates, but it greatly rev duces the cost of said structures.

1. A sectional form comprising metal side bars provided with interlocking end-engaging means on a side face of the side bars, and slots intermediate the ends ofsaid side bars, transverse division plates having shoulders adapted to abut against the said side bars and tongues adapted to be inserted through the slots in said bars, and means engaging said tongues to secure the parts in position, said bars and division plates making a guide for striking-off, substantially as described.

2. A form for concretework, comprising sides spaced apart and disposed in approximately the same horizontal plane, the sides havingbases for resting the sides on the ground and top surfaces for guiding a strike-oit' or finishing tool, the sides being provided intermediate their ends with oppositely-disposed slotsl o r apertures, trans' versely-disposed division plates extending between the said sides and having their ends abutting against the inner faces of the said sides, the said division plates beingI flush at the top and bottom with the top and base surfacesof the said sides, and the said division plates being provided at their ends with tongues extending through the said side apertures, whereby the division plates and sides are held 4in 4upright position, and removable locking means in engagement .85 as in Fig. 1. These division plates are capadifferent structures by simply using v 55 t plates with the projecting outer ends of the said i tongues and the outer faces of the said sides to lock the sides and division plates together.

'3. 'A form for concrete work; comprisin (T channel beams spaced apart and disposed in approximately `the same horizontal plane,

. and vertical rigidity, the webs of the said channel beams being provided intermediate their ends with ,oppositely-disposed apertures, and transverse vertically-disposed d ivision plates extending between the said channel beams and having their ends abutting against the inner faces of the channel beams, the said division plates being fiush at the top and bottom with the top and bottom surfaces of the said channel beams,

l and the said division plates being provided at their ends with tongues extending through the said apertures inthe said webs whereby the said division. plates and channel-"beams are held in upright position, and removable locking means for engagement with fthe projecting outer ends of thelsaid tongues to lock .thechannel beams and division plates together.

4. A form for concrete work, comprisinv` channel beams spaced apart and disposed in approximately the same horizontal plane, t-he channel beams being set up with their flanges at the .top and bottom and extending outward in opposite directions, each bottom flange forming a base for 'resting the beam on the ground, and thejupper flanges forming guiding surfaces for a strike'off or finishing tool, the ianges giving lateral and vertical rigidity, the webs of the said chanf nel beams being provided intermediate their ends iwith Voppositely-disposed apertures, transverse vertically-,disposed divisionplat'es extendingl between the said channel beams and having theirendsabutting against the inner faces of the channel beams, the said division plates being flush at to and bottom withthe top and bottom' sur aces of the said channel beams and the said division vplates beingv provided at their ends with tongues extending through the apertures in lthe said webs whereby the said division4 and channel beams are held in upright position, the vsaid tongues,l being provided With slots,

of the webs of the c annel beagns.

5. A sectional form'for concreteA work,

and wedges inserted 1n the said slots and restin against the outer faces comprising sectional sides having self-sustaining bases for sustaining the sides on the ground, the sections of each side being joined at adjacent ends to present an inner surfacev of unbroken contmuity, each section of a side being providedintermediate its ends with apertures interlocking' means exteriorly on the adJacent ends of'successive sections of a side to lock the sections together, transversedivisionplates spaced apart between the sectional sides and having their ends abutting a ainst the said inner faces of the sides' to orm compartments for the reception of the plastic'material, the said division plates being flush on top and bottom with the top -and base of the said sides to guide'a striking-off or finishing .tool over the.

said tops of the sidesand dlvision plates, and the said division plates being provided at their ends with tongues extending throu h the vsaid apertures in the sides whereby the said' division plates areheld in lupright position, and removable locking means for engagement with the projectingouter ends of the said tongues to lock the sides and division plates together. 1

6. A---sectional form' for concrete work, comprising sectional sides, transverse divi- 4sion plates spacedv apart and extending between the sectional sides,l fastening means for fastening the said division plates to the said sides, andinterlocking means for conneet-ing adjacent ends of successiver'side sections with each other, Ieach side section being in thel form of a channell beam, the flanges of whichextend outward, and one formin a base ada ted to rest on the ground an the other guide for a strike-off or finishing tool, the. said interlocking means consisting of a forwardly-projecting ton e at one end of each side section and a soc et at the other end, and i'ntolwhich socket ts'the tongue of the next following side section to interlock ad-V jacent side sections, and the said fastening means consisting of slotted projecting tongues at the ends of the division plates, fitting into and passing through apertures in thewebs of the channel beams, to hold the division plates and channel beams in `upright positionand flush at their upper and lower edges with the top andbottom of the channel beams, 'and wedges passing .through the slots of the said division late tongues andresting against theputer aces of the webs of thechannel beams.

MARK ASTEWART HOTCHKISS.

orming a top los i