US3668759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cassette hub leadering head
Assignee: Dictaphone Corp
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Filing: 1970-03-12
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Granted: 1972-06-13
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Expires: 1990-03-12
Abstract
Abstract A device is provided for securing a length of leader tape from a supply thereof to a reel hub having a slot on its peripheral side wall. The hub is initially positioned on the base of the device with a segment of a leadering tape positioned adjacent the slot. A pair of spaced die members are mounted on the base and have vertically aligned apertures therein through which a supply of frangible rod is advanced. A shearing blade is slidably mounted in the device for movement between the die members and is reciprocated by an air cylinder between extended and retracted positions. Upon movement of the blade from its retracted position to its extended position, the blade shears the portion of the frangible rod between the die members and forces the sheared rod portion, with the tape adjacent the hub, into the slot in the reel hub.
Inventors
- 👤 Trevor William Kendall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:48
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/113; Y; Y10; Y10S; Y10S83/00; Y10S83/929; Y10S83/948; Y10T; Y10T29/00; Y10T29/51; Y10T29/5147; Y10T29/5148; Y10T83/00; Y10T83/444; Y10T83/463; Y10T83/4632; Y10T83/869; Y10T83/8772
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
197 words
A device for securing a length of leader tape from a supply thereof to a reel hub having a slot on its peripheral side wall wherein said tape is initially positioned adjacent said slot, said device comprising, a base, a pair of spaced die members mounted on said base having aligned apertures therein, a shearing blade slidably mounted in said device for movement between said die members, means for reciprocating said blade between extended and retracted positions between said die members, means for advancing a rod formed of frangible material through the apertures in said dies as said reciprocating means moves said blade to its retracted position so that a portion of said rod spans the space between said dies, means for mounting a reel hub adjacent said dies at the location of the extended position of said blade with the slot in its peripheral side wall opening towards the space between said die members, whereby upon movement of said blade from its retracted position, towards its extended position, said blade shears the portion of said rod between said die members and forces the sheared rod portion, with said tape, into the slot in said reel hub.
Claim 2
Independent Claim
197 words
A device for securing a length of leader tape from a supply thereof to a reel hub having a slot on its peripheral side wall wherein said tape is initially positioned adjacent said slot, said device comprising, a base, a pair of spaced die members mounted on said base having aligned apertures therein, a shearing blade slidably mounted in said device for movement between said die members, means for reciprocating said blade between extended and retracted positions between said die members, means for advancing a rod formed of frangible material through the apertures in said dies as said reciprocating means moves said blade to its retracted position so that a portion of said rod spans the space between said dies, means for mounting a reel hub adjacent said dies at the location of the extended position of said blade with the slot in its peripheral side wall opening towards the space between said die members, whereby upon movement of said blade from its retracted position, towards its extended position, said blade shears the portion of said rod between said die members and forces the sheared rod portion, with said tape, into the slot in said reel hub.
Claim 3
Dependent Claim
63 words
The device as defined in claim 1 wherein said shearing blade has a pair of spaced parallel edges at its forward ends, extending generally perpendicularly of the tape, with one of said edges being rounded and the other of said edges being sharpened, whereby said sharpened edge cuts said tape as the blade is moved to its extended position by said reciprocating means.
Claim 4
Dependent Claim
63 words
The device as defined in claim 1 wherein said shearing blade has a pair of spaced parallel edges at its forward ends, extending generally perpendicularly of the tape, with one of said edges being rounded and the other of said edges being sharpened, whereby said sharpened edge cuts said tape as the blade is moved to its extended position by said reciprocating means.
Claim 5
Dependent Claim
143 words
The device as defined in claim 2 wherein said advancing means includes an elongated arm pivotally mounted on said device, a pawl member pivotally mounted on said one end, said pawl member having a serrated edge for engaging said rod, a leaf spring mounted on said arm for biasing said serrated edge into engagement with said rod, means normally biasing said one arm end in a raised position with respect to said dies, and means operably interconnecting said arm and said means for reciprocating the blade for lowering said one arm end against the bias of said biasing means, with respect to said dies, as said blade moves from its extended to its retracted position, whereby engagement of said serrated pawl edge with said rod and downward movement of said one arm end advances said rod through the aligned apertures in said dies.
Claim 6
Dependent Claim
143 words
The device as defined in claim 2 wherein said advancing means includes an elongated arm pivotally mounted on said device, a pawl member pivotally mounted on said one end, said pawl member having a serrated edge for engaging said rod, a leaf spring mounted on said arm for biasing said serrated edge into engagement with said rod, means normally biasing said one arm end in a raised position with respect to said dies, and means operably interconnecting said arm and said means for reciprocating the blade for lowering said one arm end against the bias of said biasing means, with respect to said dies, as said blade moves from its extended to its retracted position, whereby engagement of said serrated pawl edge with said rod and downward movement of said one arm end advances said rod through the aligned apertures in said dies.
Claim 7
Dependent Claim
52 words
The device as defined in claim 3 wherein said reciprocating means comPrises an air cylinder mounted on said base and having an actuator-plunger arm connected to said blade and said means for lowering said one arm end comprises a cam and cam follower cooperating between said actuator-plunger and said other arm end.
Claim 8
Dependent Claim
52 words
The device as defined in claim 3 wherein said reciprocating means comPrises an air cylinder mounted on said base and having an actuator-plunger arm connected to said blade and said means for lowering said one arm end comprises a cam and cam follower cooperating between said actuator-plunger and said other arm end.
Claim 9
Dependent Claim
35 words
The device as defined in claim 4 wherein said biasing means comprises a spring secured at one end to said one arm end and at its other end to a fixed arm on said device.
Claim 10
Dependent Claim
35 words
The device as defined in claim 4 wherein said biasing means comprises a spring secured at one end to said one arm end and at its other end to a fixed arm on said device.
Claim 11
Dependent Claim
23 words
The device as defined in claim 4 including stop means on said fixed arm for limiting upward movement of said one arm end.
Claim 12
Dependent Claim
23 words
The device as defined in claim 4 including stop means on said fixed arm for limiting upward movement of said one arm end.
References Cited (Backward Citations)
US1269368A
Cited
US2519552A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |