US2645141A

US2645141A - Device for crimping cable connectors

Info

Publication number: US2645141A
Application number: US198874A
Authority: US
Inventors: Felix M Anthony; Harry S Anthony
Original assignee: FELIX M ANTHONY
Current assignee: FELIX M ANTHONY
Priority date: 1950-12-02
Filing date: 1950-12-02
Publication date: 1953-07-14
Anticipated expiration: 1970-07-14

Description

y 4, 1953 F. M. ANTHONY EI'AL 2,645,141

DEVICE FOR CRIMPING CABLE CONNECTORS Filed Dec. 2, 1950 2 Sheets-Sheet l zzvmvrons \L FELIX N. ANTHONY $417k) 5. ANTHONY ATTORNEY 2 July 14, 1953 F. M. ANTHONY ETAL 2,645,141

' DEVICE FOR CRIMPING CABLE CONNECTORS Filed Dec. 2, 1950 2 Sheets-Sheet 2 INVENTO FELIX M. ANT/ 016a HARRXSANTHONY ATTORN Patented July 14, 1953 DEVICE FOR CRIMPING CABLE CONNECTORS Felix M. Anthony and Harry S. Anthony, Piedmont, Califl; said Harry S. Anthony assignor to said Felix M. Anthony Application December 2, 1950, Serial No. 198,874

2 Claims. (01. 8115) This invention relates to devices for crimpin cable connectors and particularly to a device for crimping connectors on cables that have been installed and therefore cannot be placed in a conventional crimping device mounted on a bench or the like.

The patent to Felix M. Anthony, No. 2,469,426, issued May 10, 1949, for a Device for Crimping Tubular Articles discloses a cable connector which comprises a metal tubular member into which the ends of two pieces of cable may be inserted'and discloses a device by means of which the tubular member is crimped or pressed inwardly to form an inseparable connection between the cable ends in a manner which insures good conduction of electrical current through the cable. The device disclosed in this patent is, however, adapted to be secured to a bench so that the cable ends must be brought to the device and rolled or twisted during the formation of the crimp in the connecting member. There are many instances where a similar connection is required between 'cable ends where the cables have already been installed so that it is impossible to roll or twist them. Furthermore, in many cases the cable ends must be provided with a connecting lu secured thereto by crimping and only a short end of a cable projects from a junction box or switch panel. Consequently, it is desirable to have a crimping device that is portable and capable of operating on a cable without rotating the cable itself. It is, therefore, the object of the present invention to provide a portable device for crimping cable connectors comprising a vice-like member for holding the connector against rotation and a crimping device adapted to operate around the stationary cable for imparting a crimp in the tubular connecting member. Further and more specific objects and advantages of the invention are made apparent in the following specificationv wherein reference is made to the accompanying drawings illustrating a preferred form of the invention.

In the drawings:

Fig. 1 is a perspective view of the vice portion of a device for crimping cable connectors embodying the present invention; 1

Fig. 2 is a perspective view of the crimping portion of the same device;

Fig. 3 is a perspective view of two cable ends connected by a tubular member crimped with the device of the present invention;

Fig. 4 is a perspective view of a cable end having a lug secured thereto by crimping with the same device; ,s

Fig. 5 is a plan view with'the handle broken away of thevice member shown in Fig. 1;

Fig. 6 is a vertical sectional view through one of the vice elements on the vice member shown in Fig. 1;

Fig. .7 is a sectional view on the line VII-VII of Fig. 8 illustrating details of construction of the crimping member shown in Fig. 2;

Fig. 8 is a sectional view taken on the line VIIIVIII of Fig. '7; and

Fig. 9 is a sectional view taken on the line IX-IX of Fig. 8.

In Fig. 3 of the drawings, a tubular cable connector is illustrated at ID as having crimped parts H by means of which it is firmly secured to the metallic core of a pair of cable ends l2 and I3. This cable connector [0 is applied to the-ends of the cable as a simple cylinder or tube and the crimps are thereafter formed therein to secure it in place on the cable. Fig. 4 shows an end lug I4 having a cylindrical part l5 secured to a cable end as by a crimped portion [6. The device of the present invention is designed to form the crimps I l and I6 in the tubular parts without rotating the cable as may be necessary where the cable has been installed before the end lug or the connectors are put in place. In order to accomplish this, the tubular cable connector or the end lug is held against rotation by the vice member illustrated in Fig. I. This member comprises a pair of vices, generally indicated at H, supported in spaced relation on a U-shaped bracket l8 from which extends a handle [9. The construction of the vices I! is best illustrated in Figs. 5 and 6 wherein the U-shaped member I8 is shown as having spaced bars 20 and 2| extending from its upper spaced ends each of which supports a relatively stationary but

adjustable vice jaw

22 and 23 respectively. As shown in Fig. 6, each of the vice jaws is loosely slidable on one of the members 20 and 2| and each jaw has a toothed part 23 engageable with serrations 24 formed on the topped edges of the bars 20 and 2|. 'Each of the vices I! has a movable jaw shown at 25 and 26 respectively which areidentical and, as illustrated in Fig. 6, the jaw 25 is slidable on top of the member 20 but held in a retracted position by a spring 21. Thejaws 25 are guided for sliding movement between plates 28.and 29 secured to opposite sides of the members 20 and 2|. The jaw may be advanced against the tension of the spring 21 by an eccentric cam shown at 30 in Fig. 6 as rotatable on a pin 3| supported between the plates 28 and 29 and each of the cams 30 is rotatable by a hand lever 32 formed as a part thereof. When the hand lever is raised. from the position illustrated in Fig. 6, the jaw 25 is advanced toward the jaw 22. Since'cable connectors come in various sizes, the jaw'22 will previously have been set to accommodate the size of connector to be crimped and asthe handle 32 is raised, the jaw 25 will be advanced and the cable connector will be securely held against rotation between the vice jaws. Either one or both of the vices may be used at a time as the crimper is applied to the connector at a position between the jaws. For example, to form the two crimps I I, shown in Fig. 3, the connector may first be held centrally or adjacent one end between the

jaws

22 and 25 while the left hand crimp II is formed. By moving the vice member and clamping the connector between the

jaws

23 and 26, the right hand crimp ll may be formed. Other types of vices or holding members may be employed in place of those herein shown. In fact a pair of pliers are sometimes employed in place of the vice unit where space is limited.

The crimping element of the device is illustrated in Figs. 2, 7, 8 and 9. This element comprises a crimping head, generally indicated at 40, a driving member 4| which surrounds the head and a lever 42 for actuating the driving member. The crimping head 40, as best shown in Figs. 7, 8 and 9, comprises a substantially annular housing 43 with a central opening and with a radial slot 44 commrmicating with said opening. Within the housing 43 are a pair of supporting rollers 45 and 46 journalled on

shafts

41 and 48, respectively, the roller 46 preferably having a knurled surface. Opposed to the rollers 45 and 46 is a crimping roller 41 rotatable on a pin 48 extending through a lever 49. In order to support the roller 47 in the central cutaway portion of the lever as best illustrated in Fig. 8, the lever is supported for swinging movement about a pin 50 and normally urged to swing outwardly or away from the rollers 45 and 46 by a spring indicated at A jack screw 52 is threaded through a boss 53 in the housing 43 and upon being advanced inwardly, engages and urges the lever 49 and the crimping roller 41 inwardly or toward the rollers 45 and 46. The jack screw 52 is rotatable by a handle 54 pivotally secured to its upper end as by a pin 55 and this handle has a squared and beveled end 56 engageable by a spring pressed detent 51 to retain it either in the position shown or in any other position where the detent engages one of the fiat portions of its end. Consequently when a tubular member to be crimped is held in either one or the other of the vice laws as previously described, the crimping head is placed over the tubular member and with the jack screw tightened until the crimping roller 41 presses the member against the rollers 45 and 46, the head is rotated and each time a complete rotation is made, the jack screw is tightened until a crimp of the desired depth is formed.

In order to rotate the crimping head, it is provided with a plurality of equally spaced ratchet teeth 60, see Figs. 8 and 9, which project radially from its outer periphery and the advancing member 4| which is substantially annular and of U- shaped cross section encloses these teeth and carries a pair of pivoted pawls 6| urged into engagement with the teeth by springs such as shown at 62. Spacers 63 serve to hold the sides of the driving member in properly spaced relationship. With the structure shown, oscillating movement of the handle 42 will effect rotation of the crimping head as desired.

In operation, the vice member is first brought into position to engage and clamp the tubular part to be crimped. When the part is firmly held in the Vice member, the crimping element with means of the lever 54. Now by alternat oscillating of the handle 42. and tightening of the jack screw, a crimp of any desired depth will be formed in the tubular member. Because of the fact that there are two pawls 6| engageable with the teeth 60 on the crimping head, either one or the other of the pawls will act to advance the crimping head when the other occupies the space in the crimping head through which the tubular member is inserted.

With the device of the present invention, a cable end which projects but a few inches from a wall or junction box may have a connecting member or a lug applied and crimped thereto as it is unnecessary with the present device to rotate the cable or to lead it to the vicinity of the conventional bench tool. Furthermore the crimping device may be made suificiently small and light to be carried in a workmans pocket.

We claim:

1. A device for crimping tubular articles which comprises an annular housing with a radial opening to admit an article to its center, rollers carried by the housing to engage and crimp an article, a lever pivoted in the housing and carrying one of said rollers at its free end for movement to and away from the article, a jack screw extending through the outer periphery of the housing and engaging said lever within the housing to urge said roller inwardly, ratchet teeth extending outwardly from the periphery of the housing, and means to rotate the housing including an annular member with a radial opening and pawl means carried thereby for engagement with said ratchet teeth, said jack screw and said ratchet teeth being disposed adjacent opposite faces of the housing to permit operation or the housing rotating means without interference between said annular member and the jack screw.

2. A device for crimping tubular articles which comprises an annular housing with a radial opening to admit an article to its center, rollers carried by the housing to engage and crimp an article, means supporting one of said rollers for movement toward the article, a jack screw extending through the outer periphery of the housing and the open part of the crimping head registering I with the open part in the advancing member, as shown in Figs. 2, 7 and 9, is placed over the tubular member and the jack screw is tightened by engaging said roller supporting means within the housing to urge said roller inwardly toward crimping engagement with said article, ratchet teeth extending outwardly from the periphery of the housing, and means to rotate the housing including an annular member with a radial opening and pawl means carried thereby for engagement with said ratchet teeth, said jack screw and said ratchet teeth being disposed adjacent opposite faces of the housing to permit operation of the housing rotating means without interierence between said annular member and the jack screw.

FELIX M. ANTHONY. HARRY S. ANTHONY.

References Cited in the tile of this patent UNITED STATES PATENTS Number Name Date 827,800 Haas et al Aug. 7, 1906 854,869 Brinkman May 28, 1907 1,060,185 Hitt Apr. 29, 1913 1,178,347 Ratigan Apr. 4, 1916 1,493,515 Berthold May 13, 1924 1,619,064 Ferbuson Mar. 1, 1927 2,079,498 Douglas May 4, 1937 2,235,616 Ice Mar. 18, 941 2,377,406 Dedrick June 5, 1945