FIG. 1 is a perspective view of a first embodiment of our design;
FIG. 2 is a front elevational view of the design of FIG. 1;
FIG. 3 is a rear elevational view common to the designs of FIGS. 1 and 10;
FIG. 4 is a right side elevational view common to the designs of FIGS. 1 and 10;
FIG. 5 is a left side elevational view common to the designs of FIGS. 1 and 10;
FIG. 6 is a top plan view common to the designs of FIGS. 1 and 10;
FIG. 7 is a bottom plan view common to the designs of FIGS. 1 and 10;
FIG. 8 is a cross-sectional view taken along the line 8—8 of FIG. 2 and common to the designs of FIGS. 1 and 10;
FIG. 9 is an enlarged fragmentary cross-sectional view taken from FIG. 8;
FIG. 10 is a perspective view of a second embodiment;
FIG. 11 is a front elevational view of the design of FIG. 10;
FIG. 12 is a perspective view of a third embodiment of our design;
FIG. 13 is a front elevational view of the design of FIG. 12;
FIG. 14 is a rear elevational view common to the designs of FIGS. 12 and 21;
FIG. 15 is a right side elevational view common to the designs of FIGS. 12 and 21;
FIG. 16 is a left side elevational view common to the designs of FIGS. 12 and 21;
FIG. 17 is a top plan view common to the designs of FIGS. 12 and 21;
FIG. 18 is a bottom plan view common to the designs of FIGS. 12 and 21;
FIG. 19 is a cross-sectional view taken along the line 19—19 of FIG. 13 and common to the designs of FIGS. 12 and 21;
FIG. 20 is an enlarged fragmentary cross-sectional view taken from FIG. 19;
FIG. 21 is a perspective view of a fourth embodiment;
FIG. 22 is a front elevational view of the design of FIG. 21;
FIG. 23 is a perspective view of a fifth embodiment of our design;
FIG. 24 is a front elevational view of the design of FIG. 23;
FIG. 25 is a rear elevational view common to the designs of FIGS. 23 and 32;
FIG. 26 is a right side elevational view common to the designs of FIGS. 23 and 32;
FIG. 27 is a left side elevational view common to the designs of FIGS. 23 and 32;
FIG. 28 is a top plan view common to the designs of FIGS. 23 and 32;
FIG. 29 is a bottom plan view common to the designs of FIGS. 23 arid 32;
FIG. 30 is a cross-sectional view taken along the line 30—30 of FIG. 24 and common to the designs of FIGS. 23 and 32;
FIG. 31 is an enlarged fragmentary cross-sectional view taken from FIG. 30;
FIG. 32 is a perspective view of a sixth embodiment;
FIG. 33 is a front elevational view of the design of FIG. 32;
FIG. 34 is a perspective view of a seventh embodiment of our design;
FIG. 35 is a front elevational view of the design of FIG. 34;
FIG. 36 is a rear elevational view common to the designs of FIGS. 34 and 43;
FIG. 37 is a right side elevational view common to the designs of FIGS. 34 and 43;
FIG. 38 is a left side elevational view common to the designs of FIGS. 34 and 43;
FIG. 39 is a top plan view common to the designs of FIGS. 34 and 43;
FIG. 40 is a bottom plan view common to the designs of FIGS. 34 and 43;
FIG. 41 is a cross-sectional view taken along the line 41—41 of FIG. 35 and common to the designs of FIGS. 34 and 43;
FIG. 42 is an enlarged fragmentary cross-sectional view taken from FIG. 41;
FIG. 43 is a perspective view of an eighth embodiment;
FIG. 44 is a front elevational view of the design of FIG. 43;
FIG. 45 is a perspective view of a ninth embodiment of our design;
FIG. 46 is a front elevational view of the design of FIG. 45;
FIG. 47 is a rear elevational view common to the designs of FIGS. 45 and 54;
FIG. 48 is a right side elevational view common to the designs of FIGS. 45 and 54;
FIG. 49 is a left side elevational view common to the designs of FIGS. 45 and 54;
FIG. 50 is a top plan view common to the designs of FIGS. 45 and 54;
FIG. 51 is a bottom plan view common to the designs of FIGS. 45 and 54;
FIG. 52 is a cross-sectional view taken along the line 52—52 of FIG. 46 and common to the designs of FIGS. 45 and 54;
FIG. 53 is an enlarged fragmentary cross-sectional view taken from FIG. 52;
FIG. 54 is a perspective view of a tenth embodiment;
FIG. 55 is a front elevational view of the design of FIG. 54;
FIG. 56 is a perspective view of an eleventh embodiment of our design;
FIG. 57 is a front elevational view of the design of FIG. 56;
FIG. 58 is a rear elevational view common to the designs of FIGS. 56 and 65;
FIG. 59 is a right side elevational view common to the designs of FIGS. 56 and 65;
FIG. 60 is a left side elevational view common to the designs of FIGS. 56 and 65;
FIG. 61 is a top plan view common to the designs of FIGS. 56 and 65;
FIG. 62 is a bottom plan view common to the designs of FIGS. 56 and 65;
FIG. 63 is a cross-sectional view taken along the line 63—63 of FIG. 57 and common to the designs of FIGS. 56 and 65;
FIG. 64 is an enlarged fragmentary cross-sectional view taken from FIG. 63;
FIG. 65 is a perspective view of a twelfth embodiment;
FIG. 66 is a front elevational view of the design of FIG. 65;
FIG. 67 is a perspective view of a thirteenth embodiment of our design;
FIG. 68 is a front elevational view of the design of FIG. 67;
FIG. 69 is a rear elevational view common to the designs of FIGS. 67 and 76;
FIG. 70 is a right side elevational view common to the designs of FIGS. 67 and 76;
FIG. 71 is a left side elevational view common to the designs of FIGS. 67 and 76;
FIG. 72 is a top plan view common to the designs of FIGS. 67 and 76;
FIG. 73 is a bottom plan view common to the designs of FIGS. 67 and 76;
FIG. 74 is a cross-sectional view taken along the line 74—74 of FIG. 68 and common to the designs of FIGS. 67 and 76;
FIG. 75 is an enlarged fragmentary cross-sectional view taken from FIG. 74;
FIG. 76 is a perspective view of a fourteenth embodiment;
FIG. 77 is a front elevational view of the design of FIG. 76;
FIG. 78 is a perspective view of a fifteenth embodiment of our design;
FIG. 79 is a front elevational view of the design of FIG. 78;
FIG. 80 is a rear elevational view common to the designs of FIGS. 78 and 87;
FIG. 81 is a right side elevational view common to the designs of FIGS. 78 and 87;
FIG. 82 is a left side elevational view common to the designs of FIGS. 78 and 87;
FIG. 83 is a top plan view common to the designs of FIGS. 78 and 87;
FIG. 84 is a bottom plan view common to the designs of FIGS. 78 and 87;
FIG. 85 is a cross-sectional view taken along the line 85—85 of FIG. 79 and common to the designs of FIGS. 78 and 87;
FIG. 86 is an enlarged fragmentary cross-sectional view taken from FIG. 85;
FIG. 87 is a perspective view of a sixteenth embodiment;
FIG. 88 is a front elevational view of the design of FIG. 87;
FIG. 89 is a perspective view of a seventeenth embodiment of our design;
FIG. 90 is a front elevational view of the design of FIG. 89;
FIG. 91 is a rear elevational view common to the designs of FIGS. 89 and 98;
FIG. 92 is a right side elevational view common to the designs of FIGS. 89 and 98;
FIG. 93 is a left side elevational view common to the designs of FIGS. 89 and 98;
FIG. 94 is a top plan view common to the designs of FIGS. 89 and 98;
FIG. 95 is a bottom plan view common to the designs of FIGS. 89 and 98;
FIG. 96 is a cross-sectional view taken along the line 96—96 of FIG. 90 and common to the designs of FIGS. 89 and 98;
FIG. 97 is an enlarged fragmentary cross-sectional view taken from FIG. 96;
FIG. 98 is a perspective view of an eighteenth embodiment;
FIG. 99 is a front elevational view of the design of FIG. 98;
FIG. 100 is a perspective view of a nineteenth embodiment of our design;
FIG. 101 is a front elevational view of the design of FIG. 100;
FIG. 102 is a rear elevational view common to the designs of FIGS. 100 and 109;
FIG. 103 is a right side elevational view common to the designs of FIGS. 100 and 109;
FIG. 104 is a left side elevational view common to the designs of FIGS. 100 and 109;
FIG. 105 is a top plan view common to the designs of FIGS. 100 and 109;
FIG. 106 is a bottom plan view common to the designs of FIGS. 100 and 109;
FIG. 107 is a cross-sectional view taken along the line 107—107 of FIG. 101 and common to the designs of FIGS. 100 and 109;
FIG. 108 is an enlarged fragmentary cross-sectional view taken from FIG. 107;
FIG. 109 is a perspective view of a twentieth embodiment;
FIG. 110 is a front elevational view of the design of FIG. 109;
FIG. 111 is a perspective view of a twenty-first embodiment of our design;
FIG. 112 is a front elevational view of the design of FIG. 111;
FIG. 113 is a rear elevational view common to the designs of FIGS. 111 and 120;
FIG. 114 is a right side elevational view common to the designs of FIGS. 111 and 120;
FIG. 115 is a left side elevational view common to the designs of FIGS. 111 and 120;
FIG. 116 is a top plan view common to the designs of FIGS. 111 and 120;
FIG. 117 is a bottom plan view common to the designs of FIGS. 111 and 120;
FIG. 118 is a cross-sectional view taken along the line 118—118 of FIG. 112 and common to the designs of FIGS. 111 and 120;
FIG. 119 is an enlarged fragmentary cross-sectional view taken from FIG. 118;
FIG. 120 is a perspective view of a twenty-second embodiment;
FIG. 121 is a front elevational view of the design of FIG. 120;
FIG. 122 is a perspective view of a twenty-third embodiment of our design;
FIG. 123 is a front elevational view of the design of FIG. 122;
FIG. 124 is a rear elevational view common to the designs of FIGS. 122 and 131;
FIG. 125 is a right side elevational view common to the designs of FIGS. 122 and 131;
FIG. 126 is a left side elevational view common to the designs of FIGS. 122 and 131;
FIG. 127 is a top plan view common to the designs of FIGS. 122 and 131;
FIG. 128 is a bottom plan view common to the designs of FIGS. 122 and 131;
FIG. 129 is a cross-sectional view taken along the line 129—129 of FIG. 123 and common to the designs of FIGS. 122 and 131;
FIG. 130 is an enlarged fragmentary cross-sectional view taken from FIG. 129;
FIG. 131 is a perspective view of a twenty-fourth embodiment;
FIG. 132 is a front elevational view of the design of FIG. 131;
FIG. 133 is a perspective view of a twenty-fifth embodiment of our design;
FIG. 134 is a front elevational view of the design of FIG. 133;
FIG. 135 is a rear elevational view common to the designs of FIGS. 133 and 142;
FIG. 136 is a right side elevational view common to the designs of FIGS. 133 and 142;
FIG. 137 is a left side elevational view common to the designs of FIGS. 133 and 142;
FIG. 138 is a top plan view common to the designs of FIGS. 133 and 142;
FIG. 139 is a bottom plan view common to the designs of FIGS. 133 and 142;
FIG. 140 is a cross-sectional view taken along the line 140—140 of FIG. 134 and common to the designs of FIGS. 133 and 142;
FIG. 141 is an enlarged fragmentary cross-sectional view taken from FIG. 140;
FIG. 142 is a perspective view of a twenty-sixth embodiment;
FIG. 143 is a front elevational view of the design of FIG. 142;
FIG. 144 is a perspective view of a twenty-seventh embodiment of our design;
FIG. 145 is a front elevational view of the design of FIG. 144;
FIG. 146 is a rear elevational view common to the designs of FIGS. 144 and 153;
FIG. 147 is a right side elevational view common to the designs of FIGS. 144 and 153;
FIG. 148 is a left side elevational view common to the designs of FIGS. 144 and 153;
FIG. 149 is a top plan view common to the designs of FIGS. 144 and 153;
FIG. 150 is a bottom plan view common to the designs of FIGS. 144 and 153;
FIG. 151 is a cross-sectional view taken along the line 151—151 of FIG. 145 and common to the designs of FIGS. 144 and 153;
FIG. 152 is an enlarged fragmentary cross-sectional view taken from FIG. 151;
FIG. 153 is a perspective view of a twenty-eighth embodiment;
FIG. 154 is a front elevational view of the design of FIG. 153;
FIG. 155 is a perspective view of a twenty-ninth embodiment of our design;
FIG. 156 is a front elevational view of the design of FIG. 155;
FIG. 157 is a rear elevational view common to the designs of FIGS. 155 and 164;
FIG. 158 is a right side elevational view common to the designs of FIGS. 155 and 164;
FIG. 159 is a left side elevational view common to the designs of FIGS. 155 and 164;
FIG. 160 is a top plan view common to the designs of FIGS. 155 and 164;
FIG. 161 is a bottom plan view common to the designs of FIGS. 155 and 164;
FIG. 162 is a cross-sectional view taken along the line 162—162 of FIG. 156 and common to the designs of FIGS. 155 and 164;
FIG. 163 is an enlarged fragmentary cross-sectional view taken froth FIG. 162;
FIG. 164 is a perspective view of a thirtieth embodiment;
FIG. 165 is a front elevational view of the design of FIG. 164;
FIG. 166 is a perspective view of a thirty-first embodiment of our design;
FIG. 167 is a front elevational view of the design of FIG. 166;
FIG. 168 is a rear elevational view common to the designs of FIGS. 166 and 175;
FIG. 169 is a right side elevational view common to the designs of FIGS. 166 and 175;
FIG. 170 is a left side elevational view common to the designs of FIGS. 166 and 175;
FIG. 171 is a top plan view common to the designs of FIGS. 166 and 175;
FIG. 172 is a bottom plan view common to the designs of FIGS. 166 and 175;
FIG. 173 is a cross-sectional view taken along the line 173—173 of FIG. 167 and common to the designs of FIGS. 166 and 175;
FIG. 174 is an enlarged fragmentary cross-sectional view taken from FIG. 173;
FIG. 175 is a perspective view of a thirty-second embodiment;
FIG. 176 is a front elevational view of the design of FIG. 175;
FIG. 177 is a perspective view of a thirty-third embodiment of our design;
FIG. 178 is a front elevational view of the design of FIG. 177;
FIG. 179 is a rear elevational view common to the designs of FIGS. 177 and 186;
FIG. 180 is a right side elevational view common to the designs of FIGS. 177 and 186;
FIG. 181 is a left side elevational view common to the designs of FIGS. 177 and 186;
FIG. 182 is a top plan view common to the designs of FIGS. 177 and 186;
FIG. 183 is a bottom plan view common to the designs of FIGS. 177 and 186;
FIG. 184 is a cross-sectional view taken along the line 183—183 of FIG. 178 and common to the designs of FIGS. 177 and 186;
FIG. 185 is an enlarged fragmentary cross-sectional view taken from FIG. 184;
FIG. 186 is a perspective view of a thirty-fourth embodiment;
FIG. 187 is a front elevational view of the design of FIG. 186;
FIG. 188 is a perspective view of a thirty-fifth embodiment of our design;
FIG. 189 is a front elevational view of the design of FIG. 188;
FIG. 190 is a rear elevational view common to the designs of FIGS. 188 and 197;
FIG. 191 is a right side elevational view common to the designs of FIGS. 188 and 197;
FIG. 192 is a left side elevational view common to the designs of FIGS. 188 and 197;
FIG. 193 is a top plan view common to the designs of FIGS. 188 and 197;
FIG. 194 is a bottom plan view common to the designs of FIGS. 188 and 197;
FIG. 195 is a cross-sectional view taken along the line 195—195 of FIG. 189 and common to the designs of FIGS. 188 and 197;
FIG. 196 is an enlarged fragmentary cross-sectional view taken from FIG. 195;
FIG. 197 is a perspective view of a thirty-sixth embodiment;
FIG. 198 is a front elevational view of the design of FIG. 197;
FIG. 199 is a perspective view of a thirty-seventh embodiment of our design;
FIG. 200 is a front elevational view of the design of FIG. 199;
FIG. 201 is a rear elevational view common to the designs of FIGS. 199 and 208;
FIG. 202 is a right side elevational view common to the designs of FIGS. 199 and 208;
FIG. 203 is a left side elevational view common to the designs of FIGS. 199 and 208;
FIG. 204 is a top plan view common to the designs of FIGS. 199 and 208;
FIG. 205 is a bottom plan view common to the designs of FIGS. 199 and 208;
FIG. 206 is a cross-sectional view taken along the line 206—206 of FIG. 200 and common to the designs of FIGS. 199 and 208;
FIG. 207 is an enlarged fragmentary cross-sectional view taken from FIG. 206;
FIG. 208 is a perspective view of a thirty-eighth embodiment; and,
FIG. 209 is a front elevational view of the design of FIG. 208.
