US2660186A - Shade-producing apparatus - Google Patents

Description

Nov. 24, 1953 E, w. MARSHALL ET AL 2,660,186

SHADE-PRODUCING APPARATUS Filed May 2, 1950 III/IIII'IIIIIIII II mvs qrroas FIG.6 W

ATTORNEY portion of one of the poles.

Patented Nov. 24, 1953 2,660,186 SHADE-PRODUCING APPARATUS Edward W. Marshall and Frances V. Marshall, Weston, Mass.

Application May 2, 1950, Serial No. 159,538 1 2 Claims.

This invention relates to apparatus for producing shade. In some locations, as on a beach, natural shade is not available and readily transportable means which can be easily and quickly set up to protect persons such as bathers, for example, from the sun is desirable.

Accordingly, an object of the invention is to provide inexpensive, light apparatus which can be readily carried and quickly erected to protect one from direct impact of the suns actinic rays.

The illustrated apparatus comprises two poles which may be sectional and can be supported by driving their ends into the ground or sand. Between the upper ends of the poles is supported a roll on which is Wound a piece of fabric which may be a piece of cotton sheeting, canvas, or, if greater opacity is desired, Holland cloth. This fabric is herein referred to as a shade. The roll contains a torsion spring which is attached at one end to the roll and at the other to a rod extending axially of the roll and serving as an axis about which it turns. The rod is held from rotation by being attached to a link member at one end, the link member being in length about half the diameter of the roll. The link member is pivoted at its opposite end in the upper end The opposite end of the roll is supported by a headed stud rotatably mounted in a link member which is pivoted near the upper end of the second pole. With the roll thus supported at each end, the shade may be drawn out against the tension of the torsion spring and anchored to the ground either adjacent to the poles or at a distance therefrom. For example, the shade may have a tunnel in its free end in which is a stick carrying a loop of cord through which a stake may be driven to hold the shade extended.

In transportation, the poles are to be folded parallel to the roll and hence should not be substantially longer than the roll. Hence it is desirable to provide an extension for each pole so that when set up more head room will be provided. Accordingly, a pole extension about half the length of the roll is connected by a link to the lower end of each pole, the link enabling the extension to be arranged parallel to the polelor in axial alignment therewith. When the pole and its extension are abutted end to end, a sleeve sliding on the pole 'or the extension is slipped over the joint between them to form in efiect a single rigid pole. Each sleeve may have secured to it a second shorter sleeve which, after the extension is folded parallel to its pole, may be slipped over the end of the extension to hold it in place during transportation.

W The invention will be better understood from the following description when read in connection with the accompanying drawing and will be pointed out in the appended claims.

In the drawings V Fig. 1 is a perspective view of the apparatus set up for use Fig. 2 is a front elevation, partly in section and partly broken away, of the roll and the means. for connecting it to the poles;

Fig. 3 is a detail, partly in section, of the joint; between one of the poles and its extension;

Fig. 4 is a detail view, partly in section, of one: of the poles and its extension in set-up position Fig. 5 is a plan view, partly in section and partly broken away, of the roll showing the con I nections of the torsion spring, the shade being."

omitted; and

Fig. 6 is a view showing the various members folded together and ready to be strapped up for carrying.

In the drawing, I0 is a roll carrying a shade l2. The roll may be similar to that of a window shade having the usual torsion spring l4 (Fig. 5) tending to wind the shade up. A centrifugal pawl (not shown) may be provided to hold the roll from rotation when unwinding ceases, but that is unnecessary. One end I6 of the spring I4 is connected to the roll l0 and the other end is connected to a rod 20. located centrally of the spring. The rod passes through a cap 2| on the end of the roll and forms the axis of the roll at that end. The projecting end of the rod 20 is inserted in a sleeve 22 where it is held from rotation or withdrawal by a pin 24.

The sleeve 22 is secured to or formed on a link member 26 pivoted at 28 in a kerf sawed in the upper end of a pole 30. At the other end the roll carries a headed stud rotatably mounted in a sleeve 34 on a link member 36, similar to 26 and similarly pivoted at 38 near the upper end of a pole 40. The poles 30 and 40 are preferably about the length of the roll I 0 so that when folded parallel to the roll about their pivots 28 and 38 (Fig. 6) they will not extend beyond the end of the roll. About three feet is a convenient length for the roll.

It is desirable, however, to have the poles longer to provide more head room and to allowfor the part driven into the ground. Accordingly, a shorter pole extension 42 is connected by a link 44 (Fig. 3) to the pole 30, the link being pivoted at one end by a pin 46 in a kerf in the pole 30 and at the other end by a pin 48 in a kerf in theextension 42. A slot 50 in the link 44 for the pin 48 or for the pin 46 enables the end of the extension 42 to be butted against the end of the pole 30, whereupon a sleeve 52 (Fig. 4) may be slipped over the joint between the pole 30 and the extension 42 to hold them rigidly in axial alignment so as to form in effect a single pole. The pole 40 has a similar extension 54 connected to it by a link 44 and carries a sleeve 56 similantoil. The sleeves 5 2, 56; may be held frictionallyin operative position.

The slots 50in the links 44 allow enough endwise separation of the extensions from the poles;-

to allow the extensions to be foldedalongside of the poles, as shown in Fig. 6. The sleeve 52 has secured to it a short sleeve 5 8,; may he; slipped over the extension 42 to hold it in place when folded and the sleeve 56, has a shorter sleeve 60 to be slipped over the extension 54: The whole apparatus may then be rolled upand -;se.

cured with a strap or the like for transporta- 191 In. set in p. t e app ratus it may b aid, Qn he qundlt e pqlesiifl; n, ac i ht.

anglesto the roll 10, andthe extensions 42, 54, released by sliding the sleeves 5 8; 6 0 off them. The extensions 4;, 54 may then be brought. into alignment and abutting relation respectively.v to the poles 30, 40, and the sleeve 52, 5,6 slid over thgjoints to hold them rigid. The poles with.

4 the roll, a link member pivoted to the top portion of each pole, said link members supporting journals for the roll and permitting the poles to be disposed parallel to the roll, each pole comprising a pointed extension linked thereto to permit disposal of the extension parallel to the pole, and a sleeve sliding on the pole and movable over'the joint between the poleand theextension pipr u e a. sin le r id. p l

2. Apparatus for producing shade comprising a pair of poles adapted to be thrust into the ground, a roll a sheet of fabric wound upon the roll, a link member pivoted to the top portion of each pole-, said links. supporting journals for the roll and; permitting the poles to be disposed parallel to the roll, each pole having an extension linked thereto to permit-disposal of the extension parallel to the pole, and a sleeve sliding on the pole and movable over the joint between the pole an d the extension'to produce a single rigid pole, each of said sleeves carrying another sleeve which, when the extension by reason of: its linkage is turned' parallel to the pole, can be slid over the extension to retain it in folded position.

EDWARD-W. FRANCES V. MARSHALL.

References Cited in. the file. of. this patent UNITED STATES PATENTS Number Name Date 379,734 Smith ,Mar. 20, 1888 736,765 Morgan Aug. 18, 1903.

1,296,905 Barker .Mar. 11, 1919 1,407,135 Ebbs Feb. 2 1, 19.22.

2,023,155 Turner Dec. 3, 193.5.

2,518,167 Mintz- Aug. 8, 19.50..

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