GB190417234A – Improved Speed Gears suitable for Motor Driven Vehicles and the like.
– Google Patents
GB190417234A – Improved Speed Gears suitable for Motor Driven Vehicles and the like.
– Google Patents
Improved Speed Gears suitable for Motor Driven Vehicles and the like.
Info
Publication number
GB190417234A
GB190417234A
GB190417234DA
GB190417234A
GB 190417234 A
GB190417234 A
GB 190417234A
GB 190417234D A
GB190417234D A
GB 190417234DA
GB 190417234 A
GB190417234 A
GB 190417234A
Authority
GB
United Kingdom
Prior art keywords
arm
pinion
wheel
speed
sun
Prior art date
1904-08-06
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Inventor
Charles Vernon Boys
William Williams
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1904-08-06
Filing date
1904-08-06
Publication date
1905-08-03
1904-08-06
Application filed by Individual
filed
Critical
Individual
1905-08-03
Application granted
granted
Critical
1905-08-03
Publication of GB190417234A
publication
Critical
patent/GB190417234A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Abstract
17,234. Boys, C. V., and Williams, W. Aug. 6. Driving-mechanism; clutches.-Relates to motor and pedal driven epicyclic toothed variable-speed gearing applicable to tricars, quads, and motor cycles used in combination with detachable fore and side carriages. The driving-pulley a, Fig. 1, is secured to an epicyclic frame b carrying axles g which turn connected planets c, d, e, f, which gear with sun-pinions m<1>,j, s, t. The high-speed sunpinionj has a hub, which, formed in disconnectible parts k, k<1> turning upon a sleeve h on the frame b, is provided with a brake band q. The low-speed sun-pinion m<1> turns on a backward-driving treewheel on a sleeve m which carries a brake band r. The brake rims may be concentric, so that one brake band may act upon both. The driven sun-pinion t is connected to the part 4, which may form the hub of the road wheel or may carry a driving- wheel 3. The middle-speed sun-pinion s is connected by a hub s<1> through a backward-driving free-wheel to a brake rim on which bears a brake band u<1> or a ratchet-and-pawl device, and by means of a clutch, shown in Fig. 3, to the pedal-driven sprocket v. In the rim fits a nearly cylindrical pawl 13, to which is secured a spring arm 15 with a bent head 16 adapted to engage V-shaped grooves 17, 18, 19 in the flange 14. If the arm 15 is in the groove 17, that is, in the forward-driving position, and the wheel rim is turned backwards, a projection 22 on the flange 14, which may be formed as a star-wheel, engages the edge 21 of the pawl 13 and turns it free of the flange into the free-wheel position ; and at the same time the arm 15 passes into the notch 18. To move the arm into the notch 19 for backward drive, an arm 25, operated by a lever 27 and wire 28, is turned up to engage the arm 15 and the rim is back-pedalled. The arm 15 automatically comes into the notch 18 when the pedals are held stationary. If it is desired that the pawl 13 should not be automatically re-set in one direction of drive, the sloping face leading from the bottom of the groove 17 to the ridge between the grooves 17, 18 is made long enough to prevent the arm 15 from passing it. The three engine speeds are obtained by braking the corresponding sunpinion, the low-speed band r being normally kept in engagement, and the rim m<1> being free to turn forward on its free-wheel when either of the other bands is in engagement. The levers operating the brake bands q, u<1> are connected so that both brakes cannot operate at one time. With all brakes released and the arm 15 in the notch 18, a freeengine position is obtained. In this position, the engine may be started by means of the pedals or by a hand-wheel, if preferred. The ordinary brakes are put on the vehicle, the arm 15 is moved into the notch 19 for backward drive, and the feet are back-pedalled, driving the engine forward. The vehicle is then started by braking the sun-pinion m<1>. Four forward and three backward pedalling speeds may also be obtained. By braking the high or low speed sun-pinion and pedalling in the direction desired or in the opposite direction, respectively, two speeds forward and one backward may be obtained, the low-speed backward being prevented by the free-wheel in the sun-pinion m<1>. The brake rim carrying the band u<1> is provided with a lug 31 into which a pin 30 on the hub 4 may be passed, securing a direct drive forwards or backwards. A very low non-epicyclic gear may be obtained by locking the frame b by clipping the belt or using the compression of the engine. The whole gear may be mounted on a tube turning freely on the axle i. In modifications, the low or middle speed sun-pinion may be dispensed with. Or again, one sun-pinion, such as the low-speed pinion m<1>, may be made larger than the driven sunpinion t, and the clutch be omitted, in which case a reverse speed is obtained while the other forward speeds remain as before.
GB190417234D
1904-08-06
1904-08-06
Improved Speed Gears suitable for Motor Driven Vehicles and the like.
Expired
GB190417234A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB190417234T
1904-08-06
Publications (1)
Publication Number
Publication Date
GB190417234A
true
GB190417234A
(en)
1905-08-03
Family
ID=32544799
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB190417234D
Expired
GB190417234A
(en)
1904-08-06
1904-08-06
Improved Speed Gears suitable for Motor Driven Vehicles and the like.
Country Status (1)
Country
Link
GB
(1)
GB190417234A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US20180291819A1
(en)
*
2017-01-03
2018-10-11
William G. Sheridan
Geared turbofan with non-epicyclic gear reduction system
1904
1904-08-06
GB
GB190417234D
patent/GB190417234A/en
not_active
Expired
Cited By (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US20180291819A1
(en)
*
2017-01-03
2018-10-11
William G. Sheridan
Geared turbofan with non-epicyclic gear reduction system
US10669948B2
(en)
*
2017-01-03
2020-06-02
Raytheon Technologies Corporation
Geared turbofan with non-epicyclic gear reduction system
US11187160B2
(en)
2017-01-03
2021-11-30
Raytheon Technologies Corporation
Geared turbofan with non-epicyclic gear reduction system
US11459957B2
(en)
*
2017-01-03
2022-10-04
Raytheon Technologies Corporation
Gas turbine engine with non-epicyclic gear reduction system
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