US783108A - Hose-clamping tool. - Google Patents

Description

No. 783,108. PATENTED FEB. 21, 1905. R. P. DECKER & H. S. GOVBY.

HOSE CLAMPING TOOL.

AlfPLIoATIoN FILED MAR. 7, 1904.

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No.- 783,108. PATENTED FEB. 2l, 1905. R. P. DECKER 6L H. S. COVEY.

HOSE GLAMPING TOOL.

APPLIOATION FILED ma. 7, 1904.

3 SHEETS-SHEET 2.

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3 SHEETS-SHEET 3.

PATENTED FEB. 2l, 1905. R. P. DECKER & H. S. COVEY.

HOSE ULAMPING TOOL.

APPLICATION FILED MAR 7 1904 ge/75am' (70u69, @Md m,

UNITED- STATES Patented February 21, 1905.

PATENT OEEICE.

`RICHARD P. DECKER AND HERBERT S. COVEY, OF CHICAGO, ILLINOIS.

HOSE-CLAIVIPING TOOL.

SPECIFICATION forming part of Letters Patent No. 783,108, dated February 21, 1905.`

" 'Application filed March 7,1904. serialNo. 196,973.

To (J1/ZZ whom it may concern.'

Be it known that we, RICHARD P. DECKER' and HERBERT S. CovEY, citizens of the United States, residing in the city of Chicago, county of Cook, and State of Illinois, have invented a certain new and useful Improvement in Hose- Clamping Tools, of which the following is a specification.

Our invention relates to hose-clamping tools designed to apply loops of wire to hose for securing the hose to hose-couplings; and the objects of the invention are, first, to provide means for firmly gripping the wire; second, to provide means for tightening the 4loop in position; third, to provide means for protecting the hose during the tightening of the loop, and, fourth, to provide means for setting' the loop by bending the ends thereof. We attain these objects by the mechanism illustrated in the accompanying drawings, in which Figure 1 is a general perspective view illustrating the final position of the tool in applying a wire loop to the hose. Fig'. 2 is a vertical sectional view of the complete tool. Fig. 3 is a top view of the tool, showing the casing' in section. Fig. 4 is a vertical sectional view on the line 4 4, Fig. 5. Fig. 5 is an end View of the tool looking' at the linger end thereof. Fig. 6 is a transverse sectional view of the jaws and finger, taken on the line 6 6, Fig. 4. Fig. 7 is a perspective view of a wire loop which this tool is adaptedy to clamp in position upon the hose. Fig. 8 is a vertical sectional view of a modified form of tool. Fig. 9 is a top view of the form of tool illustrated in Fig. S. Fig. 10 is a transverse sectional view of the modified form taken on the line 10 10, Fig'. 8.

' Similar numerals denote throughout the several views.`

1 represents the framework of the tool, which is provided at its forward extremity with the jaw 2, adapted to cooperate with the jaw 3 for similar parts gripping the extremities 4 4 of the'wire loop.

Said yjaw 3 forms the forward extremity of the gripping-lever 5, which is pivoted in said framework 1 by means of the fulcrum-pin 6. The preferred form of said jaws 2 and 3 is shown in the end elevation in Fig. 5 and in transverse section in Fig. 6. In this preferred I form the jaw2 is substantially circular in outline, but is longitudinally recessed, so as to form the keepers 7 7, which keep the jaw 6 in position laterally. Said keepers also afford a bearingfor the fulcrum-pin 6. At the bottom of said keepers are formed the inwardly-extending ledges 8 8, which constitute grippingsurfaces for the extremities 4 4 of the wire loop.

Said jaw 2 has also a channel 9 between said ledges. 8 for receiving the lower portion ofthe finger 10. The jaw 3 is similarly provided with a channel 11 for receiving said finger 10, and between said channel 11 and the lateral edges of said jaw 3 are formed the depending lianges 12 12, which afford gripping-surfaces extending to the gripping-surfaces on the ledges 8 8. By referring to said Figs. 5 and 6 it will be apparent that in the hereinabove-described preferred form the parts are so related that the extremities 4 4 of the wire `loop will be laterally confined between the keepers 7 7 and the finger 1() and will be transversely confined within said ledges 88 andfianges 12 12. By this construction the extremities of the loop are held at their proper distance apart while theloop is being applied to the hose. In order to increase the gripping action of the jaws upon the lever, one of said jaws is provided with a ridge 13, opposite to a recess 14 in the other one of said jaws, as best shown in Fig. 4. This construction is not essential, however, as the frictional gripping' action of the jaws may be effected by roughening the gripping-surfaces of one or both of said jaws. Pin 6, fixed in the framework 1, constitutes a fulcrum for enabling the jaw 3 to be forced toward jaw 2 to grip the extremities 4 of the wire loop. The thumb-screw 16 screws into the rear extremity of said gripping-lever 5 at a point opposite to the bridge 17, which constitutes a part of the framework and extends from one lateral edge thereof to the other. The parts are so related that when said thumb-screw 16 is screwed downwardly into the lever 5 the lower extremity of said screw will come into contact with said bridge 17, and thereby force the rear extremity of said lever 5 upward, with the result that the jaw 3 is forced toward the jaw 2 to grip the wire loop. On account of the screw-thread IOO `the loop. passes through the jaws 2 and 3, which are construction of the screw 16 and the leverage due to the length of the gripping-lever behind the fulcrum-pin 6 it follows that the jaw` channeled to receive it, preferably in the manner abovedescribed. Said finger extends lengthwise of the tool and b y reason of the channeled construction of said jaws 2 and 3 is slidable therein lengthwise of the tool. The

forward extremity of said finger 10 has aV groove 18 for receiving the cross part or bow 19 of the wire loop. The lower portion of the forward extremity of said finger is rounded and terminates in a projection 20, which constitutes a shoe adapted to lic between said bow 19 and the hose in order to protect the hose when said finger is being forced toward it to vtighten the loop in position.

In the preferred construction of tool shown in Figs. 1 to 7, inclusive, the finger 10 lis moved forward and backward by means of a nut 21, adapted to screw onto the screw-threaded extremity of said finger. In order that the rotation of said screw may accomplish the projection and retraction of said finger, it is necessary to prevent said nut from moving lengthwise within the tool. erably, by making saidV nut cylindrical, so as to have a bearing in the cylindrically-apertured cross-piece 22 of the framework 1, and providing a flange 23 on the inner extremity of said nut to bear against the inner surface of said cross-piece-22. Said nut is rotated, preferably, by means of the hand-wheel 24, which is provided with a boss 25 for bearing against the rear surface of said cross-piece 22. Said hand-wheel is rigidly'fixed to said nut 22 by means of the pin 26, or in any other suitable manner.

For convenience and toimpart a .finished appearance to the tool the framework and operating parts are inclosed within a cylindrical casing 27, which is provided with a slot 28 for receiving the shank of the thumb-screw 26.

In operating the form of tool shown in Figs. 1 to 7 inclusive, the wire loop is first loosely placed upon the hose, with the extremities 4 of said loop passed underneath the bow 19 of said loop. Said extremities 4 of the loop are then inserted into the jaw-apertures, bounded by the keepers '7, finger 10, ledges 8, and fianges 12. The jaws 2 and 3 are then forced together' to grip said extremities 4 by screwing the thumb-screw 16 down tightly in the This is obtained, preflever 5, so as to exert considerable pressure against the bridge 17. When the extremities 4 have been gripped sufficiently tight, the hand-wheel 24 is rotated in such a direction as to force the finger 10 toward the bow 19 of the loop. The said bow 19 is then adjusted so as to seat within the groove 18 at the forward extremity of said finger, and the handwheel 24 is then further rotated in the same direction, which forces the bow 19 forward, and this motion is continued until the loop is tightened upon the hose as much as may be desired. During this tightening the shoe 2O lies between the hose and the bow 19, and `thereby protects the hose from cutting or crushing. After the loop has been tightened su fciently the entire tool is thrown backward, so as to bend the extremities 4 back upon themselves, and thereby set the. loop in its tightened position. The thumb-screw 16 is then unscrewed, so as to permit the jaws 2 and`3 to release the loop, when the loop will remain tightly set in the position upon the hose.

rIhe construction and operation of the modified form of tool shown in Figs. 8 to 10, inclusive, is the same as in the form above described, with the following exceptions, to wit: the vforcing means whereby the finger 10 is pushed outwardly to tighten the loop in posi' tion, the guiding means at the rear extremity of the framework, and the lower part of the outer casing. In said modified form the finger is not screw-threaded, but is provided with teeth, (preferably upon its lower edge,) thus forming a rack adapted to be driven forward or back by means of the gear-wheel 30. The rear extremity of said modified form of finger is guided by the cross-piece 31 of the framework, and in order to prevent the teeth of said rack from catching on said cross-piece it is desirable to provide the latter with shrouds or flanges 32 32. Said gear-wheel 30 is rigidly fixed upon the shaft 33, which is journaled in the lugs 34 34. Said lugs depend from the framework 1 and are preferably integral therewith. The shaft 33 is rotated by means of the crank 35. In order to protect said gearwheel 30 and impart a finished appearance to the tool, guards 36 are formed on the tool-casing 27 at points adjacent to said wheel. The operation of the modified form of tool is similar to the operation of the first-described form, except that the finger 10 is controlled by rotating the crank 35 in the proper direction, which causes the rack 29 to be driven forward or back, as desired.

We do not wish to be limited tothe specific proportions or details of construction hereinabove described, as it is obvious that these may be considerably varied without departing from the spirit of our invention.

What we claim as new, and desire to secure by Letters Patent, is-

1. In a tool for clamping wire loops on hose;

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a framework having a jaw thereon; a lever pivoted to said framework and also having a jaw thereon, at least one of said jaws being channeled; means for forcing said jaws together to grip the wire loop; and a finger guided by the channeled portion of said channeled jaw for tightening the wire loop in position.

2. In a tool for clamping wire loops on hose; a framework having a jaw thereon; a lever pivoted to said framework and also having a jaw thereon, at least one of said jaws being channeled; a screw engaging said lever and said framework for forcing said jaws together upon the wire loop; and means for tightening the wire loopin position upon the hose.

3. In a tool for clamping wire loops on hose,

` the combination of a framework having a jaw thereon; a lever also having a jaw, said lever being fulcrumed on said framework; means for forcing' said jaws together to grip the wire loop; a finger slidingly mounted between said jaws, said finger having a groove therein for receiving the bow of the wire loop; and means for forcing the grooved portion of said finger outwardly to thereby tighten the loop in position.

4. In a tool for clamping wire loops on hose, the combination of jaws; means for forcing' said jaws together upon the wire loop to grip the same; and afinger slidably mounted with reference to said jaws, said finger having a grooved forward extremity for receiving the bow of the wire loop whereby the bow of said loop is made to constitute a fulcrum about which the extremities of the wire loop may be bent.

5. In a tool for clamping metal loops on hose, a pair of jaws for gripping the metal loops; means for tightening said jaws onto said loops; and a finger movable backward and forward for tightening the loop in position, one of said jaws lying above and one below said finger.

6. In atool for clamping metal loops on hose; a pair of jaws for gripping the metal loops; means for tightening said jaws onto the loops; a finger projecting from between said jaws and being movable back and forth, said finger having a'groove in the extremity thereof for receiving the bow of the metal loop; and a shoe formed upon the under side of the finger beneath said groove, said shoe rounding upward to thereby tend to slide up around the hose when said finger is moved outward from the jaws.

7. In a tool for clamping metal loops on hose, a framework; a pair of jaws for gripping the metal loop; and a finger slidably mounted in said framework and adapted to engage the bow of the loop for forcing said bow portion away from said jaws, said finger having a bearing near each extremity for firmly guiding it in its motion.

8. In a tool for clamping metal loops on hose; a framework, provided at its forward extremity with a jaw; a second jaw fulcrumed on said framework and cooperating with the firstmentioned jaw to grip the metal loop; a finger slidably mounted on said framework for tightening the metal loop in position; and a casing inclosing said jaws, framework and finger, said casing affording means whereby the tool may be held in the grasp of the operator.

9. Inatool for clamping metal loops on hose; a finger for engaging the bow of the metal loop; and apair of jaws adjacent to said finger, one of said jaws having' a single ridge thereon and the other of said jaws having a recess thereon corresponding' to said ridge for bending the metal loop to thereby firmly retain the same when the jaws are forced thereonto.

RICHARD I. DECKER. HERBERT S. COVEY. Witnesses:

' J. l. MoDoNALD,

HOWARD M. Cox.

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