US2624555A

US2624555A - Clamp-on radiation fin

Info

Publication number: US2624555A
Application number: US150175A
Authority: US
Inventors: Vincenzo Casey Di
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-03-17
Filing date: 1950-03-17
Publication date: 1953-01-06
Anticipated expiration: 1970-01-06

Description

Jan. 6, 1953 c. D! VINCENZO 2,624,555

CLAMP-ON RADIATION FIN Filed March 17, 1950 IN V EN TOR.

Patented Jan. 6, 1953 UNITED "STATES AT iETiNT OFFICE CLAMP-N RADIATION FIN -Casey-Di Vincenzo, East Cleveland,. 0hio Application-March 17, 1950, Serial No. 150,175

2 Claims. -(Cl. 257-26216) 'determined'bythe amountofradiati'on desired or required. "My, inventionembodies anovel type of 'clamp on fin orfin unit of the last mentioned class and comprising a sectionalform of "fin adapted to surround the tube with which'itisto be used, the sections" beingreadily separable to --enable "quick' attachment facility, and locking provisions being made to prevent unauthorized displacement ofthe fin-once it isin position on "the tube or-pipe.

-=A special feature of novelty of my newfin'lies in the-provisionof certain'tube contacting'pro- --jections integrally struck from the fin at the portions thereof most-adjacent tothetube 'for engaglng the latter to provide a relativelylarge amount -oftubeengaging- "area to afford a' high rate of heat conduction between-the tube and 'fin'under serviceconditions.

In the accompanying drawings-I-disclose a'preferred form of the invention hereof, butdetails -ofthe--construction shown-may be modified in cross-sectiongand illustrating the clamp-on'fin,

.or: finunit of my invention arrangedin position ready: to be finally locked in clamping -and in proper engaging relation to the saidtube.

.Eigure2is a viewsimilar toFigure Mont-showing the. fin. aswwhen finally clamped and locked ontothe tube surrounding the same with the heat conduction lprojectionsflattened inproper conduction .relation to the periphery of the tube.

Figure .3 is a .viewof oneof my-fins or -fi-n units with the parts .thereofin locked relation, preliminary to separation .to the positions shown in Figure l, in which condition thefins may be packed or shipped and are ready foruse.

Figure 4 is a i view showing one of my fins mounted upon a heating or like tube, theshowing being a View takenvabout on the linedi of Figure 2,- looking. in the direction of the arrow, thetubebeing broken away andshown partlyin sections.

Figure B is a fragmentary detail perspective 'view taken about on" the" line -5-=5 of Figure-*3 and"bringing"out 'a little more fully the construction of the struck out -heat conduction--projections' which extend laterally --rrom' opposite sides of eachof the sections of the fin.

"Figure 6' isa 1 sectional -view*--ta-ken on-the-- line 6 6 orFigure '2 and--bringing out-more clearly the 1pin and opening locking connection-- between theconne cting andloclsing straps;- and; one ofthe fin sections.

"Figure 7 is a cross-sectional viewtaken about onthe-line L i-of Figure 1 ;--bringi-ng out a little more clearly the feature which is-illustrated in -Figure 6.

Similar reference characters refer to like parts throughoutthe following descriptionand in the accompanying drawings.

Describingspecifically" the "construction of my "fin' 'unit, of the class hereinbefore referred to, it "is' notable that-"said unit is comprised-preem- "plemental-plate sections l-and 2. These-sections are disposed and held in thesame general "plane by means of, first, aconnecting strap 3--W-hich of the'connecting strap 3,--which--strap is-of-U- form-in -cross=section,--as seen best in Figure 4, with-the bridge portion between the sides of the strap-3 outermost'so that-ad-j acent edge-portions of thesections I and 2' may move inwardly'and outwardly in relation --tothe 1 space between-the 'sides of the"member 3.

cent cornerportions of the sections 1 -and 2-are thepoints-at-which the--pivota1 connections 4 "pass-through saidmembers rand-2.

The outermost adja- "NOW, i-n somewhat like -i'orm to connecting strap-t I employ another strapwhich-I call iconnectlng and locking strap 5, -also 'oi' ,U-I'orm in cross-section (see-Mgure' at and-Figures 6' and? The connecting andlocking strap 5 'is' pivoted at one end by thej'pivot'pin ca the adjacent outer corner portionor' the' plate-section I.

' The pivot I pins 4. and the pivot. pin Eai provide for permanent. .pivotal connection betweenithe parts3,'5 and the platesections l and" 2. -.At.the endof the connecting and locking strapifi oppositeithat having the pivot pin connection'fia. with the plate I, said member 5 is. provided withra lofck piniB which extends transversely to the U -formation of the member 5 and is attached onthe inner surface of the side portion 5a ofisaid'member'fi. On the opposite side portion 5b of thememb'er 5; and adjacent to the point of'mounting of the pin 6 onthe side-5a; there'isprovidedan-opening 50 in which the locking pin 6 i adapted to engage and interlock, after said pin passes through a slotted opening 20. in the outer corner portion of the plate 2, adjacent the free end of the connecting and locking strap 5.

In the prehminary condition of the fin unit of my invention, as seen in Figures 1 and 7 primarily, one of the sides of the member 5, notably the side a is bent slightly outwardly or divergently from the side 5b at th end portion near the locking pin 6. The adjacent end portion of the plate 2 is adapted to be received between the sides 5a and 5b of the member 5 somewhat similarly to the manner in which the ends of the plates I and 2 are adapted to be received between the sides of the connecting strap 3.

Each of the

plate sections

1 and 2 of my device is formed with a semi-circular cut-out at its innermost edge portion, the two cut-outs of the members I and 2 being complemental and enabling the members I and 2 to be engaged around the tube or pipe I with the cut-out edge portions in close proximity to said pipe at the outer periphery or surface thereof. The material of the plate members I and 2 at the curved cut-out portions thereof, above referred to, is formed with radial slits and the sections of the metal of each of the members I and 2 by reason of the provision of said slits are bent alternately in opposite directions after the manner shown in Figures 1, 3 and 5, normally approximately at an obtuse angle to the plane of the plate section with which they are integral. The said bent out portions which I designate 8 in the drawings are adapted to be presented flatwise to the surface of the tube or pipe 1, in applying the fin unit of the invention to said pipe or tube. Moreover, the said projections 8 are of considerable superficial area so that they will, when pushed against the surface of the tube I, obtain a considerable amount of surface engagement with the tube enabling them to act as heat conduction projections in a self evident manner.

Now, with the foregoing understanding of the construction of my fin unit in mind, the method of assembling the same upon a tube such as that designated 1 in the drawings, is as follows:

The

plate sections

1 and 2 of the fin unit are first separated from the condition in which they are illustrated in Figure 3 as the usual condition of shipment and packing, so as to assume approximately the position of Figure 1 though somewhat wider apart. The tube '1 is thus adapted to be received between the plate sections l and 2 by sufliciently separating same and thereafter by the employment of any suitable clamping device, such as a screw clamp for instance, engaged with the free outer edge portions of the members I and 2, the latter are forced towards each other in their common plane of the positions thereof, thus bringing the cut-out inner edge portions toward the opposite outer wall portions of the tube 1. Continuing the movement of the members I and 2 together will first cause engagement of the outer extremities of the conduction projections 8 with the outer periphery of the tube and then when the inner edges of the members i and 2 finally substantially meet one another the projections 8 will have been bent from their angular positions of Figures 5, l and 3 to the positions illustrated in Figure 2 in which said projections are disposed substantially at a right angle to the plane of the plate members I and 2. When the parts of my fin unit are assembled to the extent of bringing the plate memhers I and 2 together in the manner shown in Figure 2 and in Figure 4, the side surfaces of the pro ections 8 which are ad acent to the periphery of the tube 1 will be in full flat conduction engagement with the surface of the tube. At such time the connecting and locking strap 5 of the fin unit may be shifted from the position in which it is shown in Figure 1 to the position in which it is shown in Figure 2 until the free end portion of the member 5 receives between its side portions 5a and 5b the ad acent end portion of the plate 2. At such time the pin 6 Will be disposed in substantially the position of Figure 7 and by using a pair of pliers or any suitable tool, the

side portions

5a and 50 may be brought together at the free end of the member 5 so that the pin 6 will pass through the slotted opening 2a in the member 2 and the opening 50 in the side 5b of said member 5. The foregoing represents the condition of the pin unit when it has been finally Illlly united upon and locked to the tube 7, the interlocking relations of the parts in, 2 and 5b, in regard to the action of the locking pin 6 being fully disclosed by the sectional view of Figure 6 of the drawings.

It will be understood, or course, that the number of the pin units I that may be applied to a tube 7 of predetermined length will depend upon the amount of extended heat desired to be radiated from the tube 1. In like manner, the above matter will be controlled to a certain extentby the size of the fin units employed, according to Well known principles of heat radiation and absorption.

my invention comprises a relatively simple construction of fin unit for the purposes thereof, one which is particularly advantageous in that it may be very quickly applied to a tube or pipe, and should occasion arise, detached therefrom, and one which by proper manipulation in the application thereof to the tube will establish a very desirable heat conduction connection between the body of the fin or fin unit and said tube.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. A lin unit for tube radiation purposes, comprising normally connected complemental plate sections of relatively large area disposed in the same plane to form a plate-like nn body and having ad acent cut-out edge portions to fit against opposite portions of a tube to which the unit may be applied, said sections being formed with lateral conduction projections olfstanding from the cut-out edge portions and adapted to lie against the side portions of a tube on moving the plate sections together, a connecting strap pivotally connected at its opposite ends to the plate sections at corresponding adjacent ends thereof to normally connect the sections together, and locking means to lock together the opposite corresponding ends of the said sections comprising a connecting strap pivotally attached to one of the sections and having interlocking connection with the other of the sections.

2. A fin unit for tube radiation purposes, comprising normally connected complemental plate sections of relatively large area disposed in the same plane to form a plate-like fin body and having adjacent cut-out edge portions to fit against opposite portions of a tube, said sections being formed with lateral conduction projections ofistanding from the cut-out edge portions for close engagement with a tube on moving the plate sections together, and means to hold the sections together and maintaining the projections flat against a tube to which the fin unit is applied comprising a connecting strap pivotally connecting the plate sections at corresponding ends thereof, and a strap pivoted to one plate section 5 and having a pin lock connection with the other plate section, said last mentioned strap being disposed at the other corresponding ends of the plate section, each of said above mentioned straps having a body of U-form in cross section to receive 10 therein the adjacent edges of the plate sections.

CASEY DI VINCENZO.

REFERENCES CITED The following references are of record in the 15 file of this patent:

6 UNITED STATES PATENTS Number Number Name Date Parker Aug. 26, 1890 Kane Sept. 7, 1909 Todd July 3, 1923 Trane Sept. 16, 1930 Franquet et a1 Nov. 18, 1930 Kleucker Mar. 1, 1932 Ruthenburg et a1. Jan. 16, 1934 Kettering Feb. 27, 1934 Cobb Aug, 10, 1937 Berg et a1 June 20, 1939 FOREIGN PATENTS Country Date Switzerland Nov. 1, 1934