US1507592A - Skating-rink floor - Google Patents

Description

Sept. 9, 1924. 1,507,592

G. C. FUNK ET Al.

SKATING RINK FLOOR Filed May 18. 1921 2 sheets-shan 1 ,57 .if 5 iff v ff 4a 4 if Sept. 9 1924.

G. C.- FUNK ET AL SKATING RINK FLOOR Filed Maw 18. 1921 2 shuts-,sheen 3.. m, W w n MN l e mx/f H c w@ PQI/507D. i

Patented Sept. 9, 1924.

UNITED STATES PATENT rrica.

GEORGE C. FUNK, BBOOKLINE, AND HAGNUS J. PALSON, 0F GLOUCESTER, MASSA- GHUSETTS; HERBERT E, SMITH EXECUTOB. 0F SAID HANGUS J. PALSON, DECEA'SED.

sxATINe-nmx irnooa.v

Application filed Hay 18,

To all lLoh-0m it may concern.'

Be it known that we, GEORGE C. FUNK, a citizen of the United States, residing at Brookline, county of Norfolk, and State of Massachusetts, and MAGNUs J. PALsoN, acitizen Vof the United States, residing at Gloucester, in the county of Essex and State of Massachusetts, have invented new and useful Improvements in Skating-Rink Floors, of which the following is a specification.

This invention relates to improvements in floors of buildings, especially for buildings to be` used as skatin rinks.

The object of the invention is'to construct a floor with a wearin surface in a. building, whichis so combine with a refrigerating system that an ice surface can be formed on top of the floor and used as an ice skating surface and also so constructed that the ice surface may be removed from the floor so that it can be used as an ordinary Wearing floor.

It is further the object of this invention to so construct the iloor that an ice surface can be frozen thereon in a minimum time, namely, a few'hours and likewise removed in a few hours, making it unnecessary to devote the building exclusively to the use of a skating rink. This invention makes it possible to utilize the building from day to day either for skating or for other urposes with or without the ice on the oor. To accomplish these results rfrigerating pipes are embedded in the floor and the oor itself is made ofcement in which is incorporated iron shavings and scraps so that the floor will readily conduct heat from the surface to the pipes, where it is desired to freeze the water and from the pipes to the surface of the floor where it is desired to heat the floor for heating purposes.

The invention contemplates using either a freezi mixture in the pipes for the purpose df lowering the temperature of the tloor to freeze water on the surface of the floor and ,to produce ice, or the pipes in the fioor may be sup lied with heated fluid, whereb the floor comes heated and thus heats t e building in which the floor is located. y

Heretofore skating rink floors have had ice frozen on the surface thereof by pipes located above the floor. This necessitated the removing or placing in position of the refrigerating piping on a large floor for a skating rink and this operation required at least one to two weeks, involving a. great expense for labor and was also very destructive to the piping besides requiring a building for storage of the" piping when not in use. The length of time necessary to freeze an ice surface aceordin to this old method of rink floor construction was three days and nights for a. minimum and in some cases a week or twelve days and a similar length'of time was required to remove the ice and pipes, making it impracticable to use the building for any other purpose during the skating season.

By our improved construction, a floor provided with the refrigerating and heating system hereinafter described can be used to freeze ice on the floor and also be used to radiate heat for the warming of the building, and the freezing of the ice and remov- .ing of the same takes so little time that the building can be used one night as a skating rink and the next night as a lecture hall orv dance hall, or for any other urpose for which the usual iiooris desired t us making a practical and profitable construction.

Our invention further contemplates the provision of an automatic system for removing allv air from the pipes in the system and for removing and carrying away all snow scrapings caused by skating on the surface and alsol to furnish thoroughly dependable safeguards yagainst breaking of ipes, fittings in mains, connections or lioor pipe caused by expansion .and contraction through a great. range of temperature; to utilize the daily icev scrapings from the floors and the ice itself when removed, for the purpose of cooling the condensing water used in the plant;

The invention consists in the combination and arrangement of parts set forth in the following specification and particularly pointed out in the claims thereof.

Referring to the drawings:

Figure l is a diagrammatic perspective view of the'pi ing for the brine circulating system for coo in the oor and the piping for removing air from the said system.

Fig. 2 is a diagrammatic plan view illustrating the pipin for the brine circulating system and also t e piping whereby hot ammonia gas may be circulated through coils in. the brine tank to raise the temperature of the brine instead of lowering it and thus heat the Hoor through which the brine supply pipes circulate.

Fig. 3 is a diagrammatic view partly 1n perspective, illustrating the piping and de vices for removing the ice scrapings or melted ice from the floor of the skating rink.

Fig. 4 is an enlarged perspective view illustrating the construction of the floor and of a portion of the piping.

Fig. 5 is an enlarged section of the floor taken transversely of the brine circulating pipes and broken away.

Like numerals refer to like partsthroughout the several views of the drawings.

In the drawings, is a iioor which consists of a layer 11 of pebbles, broken stones or verv coarse gravel which is laid on the groun or an supported structural floor to a thickness o about six inches; then alayer 12 of selected and sifted light cinders of nearly even size; thena layer 13 of concrete one inch to an inch and a half thick. On the top of theI concrete layer, strips of cork 14 are laid and the intervening spaces 15 are lilled with alternate layers of dry sand and ground cork. v

In Fig. 1 the line 16 indicates the oval shape of the skating rink floor and across this floor extends a larffe number of parallelly disposed brine circulating pipes 17. These pipes being preferably laid directly on said cork strips 14 and at their ends said circulating pipes are connected together by headers 18 and 19, the pipes being arranged to form a series of units preferably with eight of the brine circulating pipes in each unit. In laying the'fioor, when the pipes 17 have been thoroughly tested, a composite mixture consisting of concrete mixed with metallic shavings, scraps or any other material having a high conductivity is laid between and around the pipes in separate sections 20 with expansion joints 21, said eX- pansion joints being preferably arranged one to correspond with each space between adjacent headers. This composite mixture should be well tam ed in between the pipes and smoothly finished on the surface, leaving a thickness of about three-quarters of an inch above the top of the pipes 17 to serve as a hard wearing surface. The composite mixture found most useful for a ready transmission of heat combined with strength and finish is as follows:-Two parts of iron.

shavings, two parts of clean sand or fine gravel, one part of cement or other material to set up the iioor and a small quantity of water-proofing material.

The expansion joints 21 divide the floor up into spaces, each space containing a unit composed of a plurality of the brine circulating pi es, preferably eight, and two headers, thereby making it possible to remove one entire unit without disturbing any part of the composition floor between and above the rest of the coils of pipe 17. The expansion joints are formed by filling the spaces in which they are located with hot elastic asphalt. j

The floor hereinbefore described will transmit heat very readily to the brine in the pipes, whereby a skating surface may be made in a few hours on the ioor and in a similar time the ice so formed may be loosened from the door and sujliciently thawed to be readily removed from the Whole surface.

The brine is supplied to the pipes '17 and their headers by a brine main 22 which is connected to each of the headers 18 by a system of piping constituting a compensating or swing joint 23 consisting of a vertical pipe 24 which is connected by an elbow 25 to a horizontal pipe 26 in which is provided a valve 27 and which is connected to an elbow 28, horizontal pipe 29, elbow 30, horizontal pipe 31 and elbow 32 to a vertical pipe 33 which leads into the header 18. The header 19 is connected by a compensating or swing joint 34 similar to the compensating joint 23 to a return brine main 35. The water is held upon the floor preparator'y to freezing, or after the ice has been melted, b v a curb 36 extending entirely around the ring and approximately of the outline indicated by the line 16, Fig. 1. The brine mains 22 and 35 are located in trenches 37 and 38 respectively.

Referring now to Fig. 1, the brine supply main 22 is supplied with brine from a brine tank 39 which contains a brine solution which runs by gravity through a pipe 4() to pumps 41 and from said pumps the brine is forced through pipes 42, 43, 44, 45, brine cooler and pipes 46, 47 and 48 to the brine main supply 22, or if desired, instead of passing directly through the cooler 50 to the pipe 46, it may be by-passed through the pipe 49 to the pipe 4G. The brine is carried through the main and through pipes 52, 53 and 54 and returned to the brine tank 39. In order to remove the air from the brine mains, vertically extending pipes 55, Figs. 1 and 4, provided with valves 56 are connected to the pipe 57 which is connected by pipes 58 and 59 to the brine tank 39. The return main is likewise provided with vertically extending pipes 60 provided with valves 61 and connected to a pipe 62 which is connected by pipes 63 and 64 to the brine tank 39.

These air lines are run from the mains with a slight rise to the brine tank and are connected to the highest point of the first fitting or elbow 25 in the compensating or swing joints 23 and with the elbow 23 of the compensating or swing joints 34.

In using the device the valve 27 is left wide open and the valve 56 is left slightly llO open, while a valve 27 of the compensating joint 34 is partly closed and the air valve 61 is left wide open. This is to ensure the circulation of the brine through the headers and pipes 17 and mains 22 and 35. The brine in the tank 39 may be cooled by any refrigerating systemeither compression or absorption or any other refrigerating system but as shown it is cooled by a compression system embodying a coil 66, a compresser pump 67 'which forces ammonia gas through the pipe 68 into the ammonia condenser 69. The ammonia liquid is forced from the condenser through `pipe 70 into the ammonia storage tank 71 through pipes 72 from the storage tank to the ammonia receiver 73. From the ammonia receiver 73 the pressure is lreduced by `valve 73' and the ammonia is released into pipe 74 and thence passes through pi es 75 and 7 5into the brine cooler 50 an throu h pipe 76 into the ammonia coil 66 in thegbrine tank. At this point the brine is cooled. The ammonia gas is then drawn by the suction of the com ressor 67 through pipes 77, 7 8, 79 and fili-om the coil 66 and the brine cooler 50, the suction line being controlled by valves 50 and 66. j

When, however, it is desired to melt the ice it is done by raisin the temperature ofthe brine to heat the oor and thus melt the ice. The brin`e in the brine tank is heated in the following manner: Valve 84 on the gas line from the. compressor is closed as f well as valve 50 on the suction line from the brine cooler. The compressor is o erated and the hot gas is by-passed throng valve 85 into pipes 81 and` 82 directly into the bottom of the ammonia coil 66 which is immersed in the brine tank 39, the hot gas in the ammonia coil warming the brine. The hot gas is then drawn back by the suction of the compressor 67 through the valve 66', pipes 77 78, 79 and 80 which completes the circuit. i

In order to remove the water from lthe floor of the rink, a hose 86 is employed which is provided with a suction nozzle 87 and may be connected to anyone of the hose connections 88, see Fig. 3. These hose connections are connected to a pipe 85 which is connectdby pipes 86 and 86 to a vacuum pump 87 and the vacuum pump is connected by pipes 88 to a sump 89 which in turn is connected to an overflow pipe 90 which leads to the sewer, or if desired, the water in the sump 89 may be pumped by a circulating pump 91 through pipes 92, 93 and 94 to the condenser 69 and the condenser 69 is connected by pipes 95, 96 and 97 to the sewer. A snow melting tank 98 is provided to melt the snow or scrapings of t e ice caused by the skaters and this tank is heated by steam entering through a pipe 99 and assing through a coil 100 located in the tav 98.

When the snow is melted the tank 98 is drained by the suctionI pipes 101,'102, 85, 86 and 86 and vacuum pump 87. The pipe'103 leads from the outlet end of the steam coil to the suction pipe 102, so that when it is desired to assist in the circulation of steam Athrough the coil 100 the valve 104 is opened and the lvalve is closed and when it is desired to empty the tank of melted snow the valve 104 'is closed and the valve 105 is opened.

The general operation` of the apparatus hereinbefore described is as follows :-The brine is supplied to the brine supply main 22 by pumps 41 which suck the brine from the tank 39 and force it through the connections hereinbefore named to' the brine supply main 22 and from the brine supply main the brine passes through the headers 18 and through the pipes 17 to the headers 19 and thence through the compensating joints 34 to the return brine main 35 and thence into the brine tank. Meantime, the

brine in the tank is cooled 'by the ammonia coil 66 and brinecooler 50 as hereinbefore described. If it is desired to melt the ice, the valves 84 and 50 are closed and the hot ygas is then circulated through the ammonia coils in the brine tank andthe-brine is heated to melt and loosen the ice on the floor and to heat the room in which the floor is located.

While we have described our floor as embodying metal shavings, that being the preferred form, metalparticles such as lings or flat scrap punchings may be used without departing from thespirit of our invention.

We claim:

1. A floor of` concrete or the like and means for varying the temperature thereof comprisin a series of sections, expansion joints of e astic material separating said sections one from the other, a plurality of pipes embedded in each of said sections extending longitudinally thereof and approximately parallel to said expansion joints and ar` ranged in a series of units, a air of headers on opposite sides of said oor connecting the ends of the pipesof each unit together and means to cause a circulation of fluid through said pipes and headers.

2. A floor of concrete or the like and means for varying the temperature thereof comprising a series of sections, expansion .joints of elastic material separating said sections one from the other, a plurality of pipes embedded in each of said sections extending longitudinally thereof and arranged in a series of units, a pair of headers on. opposite 'sides of said floor connecting the ends of the pipes of each unit together, a supply main and means to connect said main to one of said headers, a return main and means to connect said return main to the other of said headers and means to cause a circulation of iiuid through said mains, headers and pipes.

3. iioor of concrete or the `like and means for varying the temperature thereof comprising a series of sections, expansion joints of elastic material separating said sections one from the other, a plurality of pipes embedded in each of saidvsections extending longitudinally thereof and arranged in a series of units, a pair of headers on opposite sides of said ioor connecting the ends of the pipes of each unit together, a supply main, a return main, means to connect said Ineens for vvaryingthetemperature thereof oor of concrete or the like and meca -comprising a series of' sections, expansion joints of elastic material separatin said sections one from the other, aplura ity of pipes embedded in each of said sections air exhaust system connected to said` fluid.`

circulating means whereby air may be removed rom said Eipes.

In testimony W ereof We have hereunto set our hands in presence of two subscribing Witnesses.

GEORGE C. FUNK. MAGNUS J. PALSON Witnesses:

KATHRYN M. JOYCE, Tnnnnsa L. Yon-K.

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