US761637A - Trolley-guard. - Google Patents

Trolley-guard. Download PDF

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Publication number
US761637A
US761637A US19981504A US1904199815A US761637A US 761637 A US761637 A US 761637A US 19981504 A US19981504 A US 19981504A US 1904199815 A US1904199815 A US 1904199815A US 761637 A US761637 A US 761637A
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Prior art keywords
wheel
guard
trolley
face
axis
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US19981504A
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Linwood B Aikens
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/04—Current collectors for power supply lines of electrically-propelled vehicles using rollers or sliding shoes in contact with trolley wire
    • B60L5/10—Devices preventing the collector from jumping off

Definitions

  • FIG. 2 is a side elevation.
  • Fig. 3 is a front view showing my. improved guard in operation.
  • a trolley-pole .A which errtends upwardly from a car and is provided with a spring or other means for giving it an hpwrrd tendency, is a fork B, comprising arms land 2, in which is secured a shaft 3.
  • the usual trolley-wheel C for engagement, with the wire D is rotatably mounted upon the shaft 3, and. at the side 0f thetrolley wheel the similar guards E and Fare also rotatablymounted on the shaft 3KWVashers .4v and 5 are placed between the trolley-wheel and the guards to prevent the guards from being rotated by reason of friction with the trolley-wheel when the apparatus is'operating normally. Care shouldbe observed, however,
  • Sleeves 6 and 7 on the shaft 3.- bear against the inside faces ofthe fork and against the bosses 8 upon the guards E and F, thereby properly positioning the wheel and guards.
  • the guards E and F are precisely alike, so that a description of one will apply to either.
  • Each of the guards is eccentrie'ally mounted, and the farthest part 9 of. the face of each from the shaft is the narrowest, measured by projections on its axis, and'is inclined to the shaft.
  • the inner edge of this part of the face is at least as great a distance from the shaft as the rim of the trolley-wheehwhile the outer Serial lid 199,815. (No model.)
  • edge is at a greater distance from the shaft than the inner one.
  • the part 9 Opposite the part 9 is the part 10, which is'at the least distance from the shaft, is parallel-thereto, and is the broadest part of the face.
  • the part 10 of the face is atalessdistance from the s 'ft than the rim of the trolley-wheel.
  • Parts oft 1e face intermediate the parts Sand 10 so vary bewheel', as shown by full lines in that figure...
  • the trolley-wheel should be displaced from the wire, so that the wire would occupy a relative position-for instance, as shown by the dotted lines in Fig. 1the guard F would be turned by reason of its contactwith the wire and the movement of the car and the wjrecoming in contact with the flange 11 the trolley-wheel would be gradually deflected toward the trolley-wire until 'the' face part 9- became uppermost, as shown I in Fig. 3, when the wheel would slide under pressr re from the pole A into position on the' wire. . The center of gravity then lying above the shaft the guard would again assume the position of Fig. 1 in readiness. for a similar operation. Obviously the guard E would operate in a similar manner to restore thewheel' were it displaced upon the other side of the trolley.
  • said guard having a face varying in width and inclined to its axis at its narrowest part and a 1 deflecting-flange extending along the edge of said face, substantially as described.
  • a'guard mounted to rotate eccentrically heside said wheel, said guard having a face varying in width, the narrowest portion being at the greatest distance from its axis, and a flange extending along the edge of said face, substantially as described.
  • a guard mounted to rotate eccentrically beside said Wheel, said guard having a face varying in Width and inclined to its axis at its narrowest part, substantially as described.

Description

PATENTED JUNE 7, 1904 L. B. AIKENS. TROLLEY GUARD.
APPLICATION FILED MAR. 24, 1904.
NO MODEL.
u m a wavvmo UNITED. STATES Patented June '7, 1904.
LINVVOOD B. AIKENS, OF ROOKLEDG-l l, FLORIDA.
TROLLEY-GUARD.
srncmroarzon forming part of Letters Patent No. 761,637, dated June 7, 1904..
' Application filed larch 24, 1904.
front view, partly injsection, of a trolley with my improved guard applied thereto in normal position." Fig. 2 is a side elevation. Fig. 3 is a front view showing my. improved guard in operation.
Upon the end of a trolley-pole .A, which errtends upwardly from a car and is provided with a spring or other means for giving it an hpwrrd tendency, is a fork B, comprising arms land 2, in which is secured a shaft 3. The usual trolley-wheel C for engagement, with the wire D is rotatably mounted upon the shaft 3, and. at the side 0f thetrolley wheel the similar guards E and Fare also rotatablymounted on the shaft 3KWVashers .4v and 5 are placed between the trolley-wheel and the guards to prevent the guards from being rotated by reason of friction with the trolley-wheel when the apparatus is'operating normally. Care shouldbe observed, however,
that the spaces between the wheel and guards are not'wide enough to permit the trolleywireto fall therein. Sleeves 6 and 7 on the shaft 3.- bear against the inside faces ofthe fork and against the bosses 8 upon the guards E and F, thereby properly positioning the wheel and guards.
The guards E and F are precisely alike, so that a description of one will apply to either. Each of the guards is eccentrie'ally mounted, and the farthest part 9 of. the face of each from the shaft is the narrowest, measured by projections on its axis, and'is inclined to the shaft. The inner edge of this part of the face is at least as great a distance from the shaft as the rim of the trolley-wheehwhile the outer Serial lid 199,815. (No model.)
edge is at a greater distance from the shaft than the inner one. Opposite the part 9 is the part 10, which is'at the least distance from the shaft, is parallel-thereto, and is the broadest part of the face. Preferably the part 10 of the face is atalessdistance from the s 'ft than the rim of the trolley-wheel. Parts oft 1e face intermediate the parts Sand 10 so vary bewheel', as shown by full lines in that figure...
If, however, the trolley-wheel should be displaced from the wire, so that the wire would occupy a relative position-for instance, as shown by the dotted lines in Fig. 1the guard Fwould be turned by reason of its contactwith the wire and the movement of the car and the wjrecoming in contact with the flange 11 the trolley-wheel would be gradually deflected toward the trolley-wire until 'the' face part 9- became uppermost, as shown I in Fig. 3, when the wheel would slide under pressr re from the pole A into position on the' wire. .The center of gravity then lying above the shaft the guard would again assume the position of Fig. 1 in readiness. for a similar operation. Obviously the guard E would operate in a similar manner to restore thewheel' were it displaced upon the other side of the trolley.
While the preferred construction is shown projections on said axis,- and a deflecting-flange 'as described.
substantially as described.
a guardmounted to rotate e'ccentricallyabout the axis of said wheel, said guard having a face varying in .width measured by projections on said axis, substantially as described.
2. The combination with a'trolley-wheel, of a guard beside said wheel and mounted to rotate eccentrically aboutthe' axis of said wheel, said guard having a face varying in width measured by projections on said axis, and 'a deflecting-flange extending'along the edge of said face, substantially as described.
3. The combination witha trolley-wheel of a guard'beside said wheel and mounted to r0- tate about the axis of said wheel, said guard having a face varying in width measured by,
extending-along th edge or said face, sub stantially as described. I
4. The combination with atrolley-Wheel, of aguard mounted to rotate beside said wheel, said guard having a face varying in width measuredby projections on its axis and a deflecting-flange extending along the edge of 5. The combination with a trolley-wheel, of a guard mounted to rotate beside said wheel, said guard having a face varying uniformly in width from its narrowest portion to its. widest portion and a deflecting-flange extending along the edge of said face, substantially 6. The combination with atrolley-wheel, of a guard mounted to rotate eccentrically beside said wheel, said guard having a face varying uniformly in width from its narrowest portion to its widest portion and a deflectingflange extending along the edge of said face,
7 The combination with a trolley-wheel, of a guard mounted to rotate beside said wheel,
said guard having a face varying in width and inclined to its axis at its narrowest part and a 1 deflecting-flange extending along the edge of said face, substantially as described.
' 8. The combination with atrolley-wheel, of a guard mounted to rotate eccentrically'beside said wheel, said guard having a face .va--
rying in width and inclined to its axis at its narrowest part and a deflecting-flangeextcnding along the edge of said face, substantially as described.
9. T lie-combination with a trolley-wheel, of a guard mounted to rotate eccentrically beside said wheel, said guard having a face varying in width, the narrowest portion being at the greatest distance from its axis and inclined thereto, and a flange extending along the edge of said face, substantially as described.
10. The combination with a trolleywheel,of
a'guard mounted to rotate eccentrically heside said wheel, said guard having a face varying in width, the narrowest portion being at the greatest distance from its axis, and a flange extending along the edge of said face, substantially as described.
11. The combination with a trolley-wheel, of
a guard mounted to rotate eccentrically beside said Wheel, said guard having a face varying in Width and inclined to its axis at its narrowest part, substantially as described.
12. The combination with a trolley wlieehof a guard mounted to rotate eccentrically about the axis of said wheel, said guard having that portion of its face which is farthest removed from said axis of least width measured by projections on said axis, substantially as described.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
- LINWOOD B. AIKENS. Witnesses:
. GEO. N. HATCH,
F. B. FLOYD.
US19981504A 1904-03-24 1904-03-24 Trolley-guard. Expired - Lifetime US761637A (en)

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