US2781530A - Ratchet gear assembly for wrenches and dies - Google Patents

Ratchet gear assembly for wrenches and dies Download PDF

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Publication number
US2781530A
US2781530A US481459A US48145955A US2781530A US 2781530 A US2781530 A US 2781530A US 481459 A US481459 A US 481459A US 48145955 A US48145955 A US 48145955A US 2781530 A US2781530 A US 2781530A
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Prior art keywords
sleeve
wrenches
dies
tool
pipe
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Expired - Lifetime
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US481459A
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Roy O Wright
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B17/00—Hand-driven gear-operated wrenches or screwdrivers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • B25B13/462—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis
    • B25B13/463—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis a pawl engaging an externally toothed wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • B25B13/467—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member which are gear-operated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H29/00—Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action
    • F16H29/12—Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action between rotary driving and driven members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/55—Cutting by use of rotating axially moving tool with work-engaging structure other than Tool or tool-support
    • Y10T408/563—Work-gripping clamp
    • Y10T408/5633—Adapted to coaxially grip round work

Definitions

  • This invention relates to a tool, and more particularly to a ratchet gear assembly for wrenches and dies.
  • This invention is an improvement on the tool shown in my prior Patent No. 2,559,332.
  • the object of the invention is to provide a tool which will facilitate the die cutting or threading of pipes of various sizes.
  • Another object of the invention is to provide a ratchet gear assembly for wrenches and dies wherein pipes of any desired size can be accurately gauged and threaded.
  • a further object of the invention is to provide a ratchet gear assembly for wrenches and dies which is extremely simple and inexpensive to manufacture.
  • Figure 1 is a sectional view taken on the line 1-1 of Figure 2.
  • Figure 2 is a side elevational view of the tool of the present invention, with parts broken away and in section.
  • Figure 3 is a sectional view taken on the line 33 of Figure 2.
  • Figure 4 is a sectional view taken through the bracket forming part of the gauge.
  • Figure 5 is a side elevational view taken on the line 5-5 of Figure 4.
  • Figure 6 is an elevational view of the ring forming part of the gauge.
  • Figure 7 is a side elevational view taken on the line 7-7 of Figure 6.
  • Figure 8 is a side elevational view of the sleeve.
  • the numeral 10 designates a section of a pipe which may be threaded as at 11, by means of the tool of the present invention.
  • the tool includes a hollow tubular sleeve which is indicated generally by the numeral 12, Figure 8, and the sleeve 12 includes three spaced parallel elongated slots 14, 15 and 16 for a purpose to be later described.
  • a housing 17 which can be made of any suitable material, and the housing 17 inincludes a pair of end walls 18 and 19 which are arranged in spaced parallel relation with respect to each other, Figure 2.
  • the housing 17 further includes an annular side wall 20.
  • the walls 18 and 19 are provided with registering apertures 22 and 21.
  • a shaft 23 has a cylindrical stem 24 extending through the registering apertures 21 and 22, and a key 26 serves to connect a pinion gear 25 to the stem 24 of the shaft 23.
  • the shaft 23 further includes an enlarged shank 27 and arranged on the outer end of the shaft 23 is a square shaped portion 28 which is adapted to be engaged by the socket 30 of a wrench 29.
  • a wrench 29 By rotating the wrench 29, the shaft 23 will rotate, and this in turn will cause rotation of the pinion gear 25.
  • a gear 31 Positioned Within the housing 17 is a gear 31 which is arranged in meshing engagement with the pinion gear 2,781,530 Patented Feb. 19, 1957 ice 25.
  • the gear 31 is keyed to the sleeve 12 by means of a key 32 which engages a slit or cutout 13 in the exterior surface of the sleeve 12.
  • a head 33 Formed integral with the housing 17 or secured thereto is a head 33 which is provided with a chamber or cutout 34.
  • a stud or pin 35 is slidably mounted in the head 33, and the stud 35 is provided with an inner tapered prong 37 which engages teeth 38 that are formed on the outer periphery of a die 39.
  • the die 39 is provided with an 0 inner threaded portion 40 so that as the die 39 rotates,
  • a coil spring 41 is circumposed on the stud 35 and abuts the prong'37 for urging the prong 37 into engagement with the teeth 38, and a collar or knob 36 is arranged on the outer end of the stud 35.
  • the tool of the present invention further includes a gauge which is indicated generally by the numeral 42, and the gauge 42 serves to insure that the pipe 10 is maintained in its proper position with respect to the remaining portion of the tool.
  • the gauge 42 includes a ring 43 which surrounds the sleeve 12, and the ring 43 is provided with four threaded apertures 44, 45, 46 and 47, Figure 6.
  • the gauge 42 further includes a bracket 48 which has a semi-circular shape, Figures 4 and 5.
  • the bracket 48 includes two sections 49 and 50, and the section 50 is of greater thickness or size than the section 49 for a purpose to be later described.
  • the bracket 48 further includes three slots 51, 52 and 53. The slots 51 and 52 are of greater length than the intermediate slot 53.
  • the gauge 42 further includes a pair of similar bolts which are indicated generally by the numeral 54, and each of the bolts 54 includes an outer head 55 and a threaded stem 56 of reduced diameter. Interposed between the pair of bolts 54 is a securing element or bolt 57 which also includes a threaded shank 58 and a head 59. The shank 58 is shorter than the shanks 56 as shown in Figure 1.
  • a fourth bolt 60 is provided, and the bolt 60 includes a threaded stem 61 that has a hand grip or handle 62 connected thereto.
  • the tool of the present invention is adapted to facilitate the work of threading pipes such as the pipe 10.
  • the pipe 10 can be positioned in the tool as shown in 1 and 2, and then the gauge 42 is adjusted on the sleeve 12.
  • the bolts 54 and 60 are adjusted inwardly until they engage the outer surface of the pipe 10 whereby the tool is maintained centered on the pipe. Then, by rotating the handle 29, the shaft 23 will be rotated and this turn will cause rotation of the pinion gear 25 which meshes with and rotates on the gear 31.
  • the sleeve 12 has the slot 13 which receives the key 32 where l 13 by the sleeve and gear 31 are locked together.
  • the three slots 14, 15 and 16 in the sleeve 12 receive the bolts 54 and 60, as shown in Figure l.
  • the ring 43 has the three openings 44, 46 and 47 through which the boltsiE-i and 60 extend, and there is also provided the threaded 'apecrture 45 which receives the bolt 57.
  • the master 'set'screvv 60 is adjusted by means of the handle 62 to thereby 'pmoperly position the ratchet die head so that proper thrreadswill be cut on the pipes.
  • the bracket 48 is pro .vided with a pair of slots 51 and 52 whichreceive the bolts'54, and the'slot 53 receives the bolt 57 'as'shown in Figure 1.
  • the bolt 'or screw 57 precompounds accidental loss of the bracket 48 since the ends of the 'sl-ot53 terminatejshort of: the sides of the bracket -4E5. It is to-be noted .thatL-thebracket '48 has'two' sizes or thicknesses '49 and '50 which permit gauging of two different sizes of pipes.
  • the bolts 54 can be extended 'even 'further'into the sleeve IZ'to't-hereby accommodate anothetr'jsize pipe.
  • the inside diameter of the sleeve 12 "alsoserves as a gauge for a pipe.
  • a shaft including a cylindrical stem extending '4 thcroughrsaid registering apertures, an enlarged shank extending from said stem and terminating in a square shaped portion, a pinion gear keyed to said stem and rotatably positioned in said housing, a gear member meshing with said pinion gear and keyed to said sleeve, a head extending from said housing and provided with a chamher, there being a recess in said'housing, a die head havinga portion seated said recess and provided with a plurality of teeth on its outlet-periphery, said die 'h'ead being provided with an inner threaded portion, a stud slidably mounted in said head 'andmeluding an inclined prong mounted for movement into an'd out of engagemenfwith the teeth on said diehead, sea-1 springcircumposed on said stud and ab

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Description

Feb. 19, 1957 R. o. WRIGHT 2,781,530
RATCHET GEAR ASSEMBLY FOR WRENCHES AND DIES Filed Jan. 12, 1955 INVENTOR. A 6) a W/P/4/77 ATTCI RN EYS United States Patent i RATCHET GEAR ASSEMBLY FOR WRENCHES AND DIES Roy 0. Wright, Huntington, W. Va.
Application January 12, 1955, Serial No.-481,459
1 Claim. (Cl. 10-124) This invention relates to a tool, and more particularly to a ratchet gear assembly for wrenches and dies.
This invention is an improvement on the tool shown in my prior Patent No. 2,559,332.
The object of the invention is to provide a tool which will facilitate the die cutting or threading of pipes of various sizes.
Another object of the invention is to provide a ratchet gear assembly for wrenches and dies wherein pipes of any desired size can be accurately gauged and threaded.
A further object of the invention is to provide a ratchet gear assembly for wrenches and dies which is extremely simple and inexpensive to manufacture.
Other objects and advantages will be apparent during the course of the following description.
In the accompanying drawings, forming a part of this application, and in which like numerals are used to designate like parts throughout the same:
Figure 1 is a sectional view taken on the line 1-1 of Figure 2.
Figure 2 is a side elevational view of the tool of the present invention, with parts broken away and in section.
Figure 3 is a sectional view taken on the line 33 of Figure 2.
Figure 4 is a sectional view taken through the bracket forming part of the gauge.
Figure 5 is a side elevational view taken on the line 5-5 of Figure 4.
Figure 6 is an elevational view of the ring forming part of the gauge.
Figure 7 is a side elevational view taken on the line 7-7 of Figure 6.
Figure 8 is a side elevational view of the sleeve.
Referring in detail to the drawings, the numeral 10 designates a section of a pipe which may be threaded as at 11, by means of the tool of the present invention. The tool includes a hollow tubular sleeve which is indicated generally by the numeral 12, Figure 8, and the sleeve 12 includes three spaced parallel elongated slots 14, 15 and 16 for a purpose to be later described.
Mounted on the sleeve 12 is a housing 17 which can be made of any suitable material, and the housing 17 inincludes a pair of end walls 18 and 19 which are arranged in spaced parallel relation with respect to each other, Figure 2. The housing 17 further includes an annular side wall 20. The walls 18 and 19 are provided with registering apertures 22 and 21. A shaft 23 has a cylindrical stem 24 extending through the registering apertures 21 and 22, and a key 26 serves to connect a pinion gear 25 to the stem 24 of the shaft 23.
The shaft 23 further includes an enlarged shank 27 and arranged on the outer end of the shaft 23 is a square shaped portion 28 which is adapted to be engaged by the socket 30 of a wrench 29. Thus, by rotating the wrench 29, the shaft 23 will rotate, and this in turn will cause rotation of the pinion gear 25.
Positioned Within the housing 17 is a gear 31 which is arranged in meshing engagement with the pinion gear 2,781,530 Patented Feb. 19, 1957 ice 25. The gear 31 is keyed to the sleeve 12 by means of a key 32 which engages a slit or cutout 13 in the exterior surface of the sleeve 12.
Formed integral with the housing 17 or secured thereto is a head 33 which is provided with a chamber or cutout 34. A stud or pin 35 is slidably mounted in the head 33, and the stud 35 is provided with an inner tapered prong 37 which engages teeth 38 that are formed on the outer periphery of a die 39. The die 39 is provided with an 0 inner threaded portion 40 so that as the die 39 rotates,
the threaded portion 40 will cause the threads 11 to be formed on the pipe 10. A coil spring 41 is circumposed on the stud 35 and abuts the prong'37 for urging the prong 37 into engagement with the teeth 38, and a collar or knob 36 is arranged on the outer end of the stud 35.
The tool of the present invention further includes a gauge which is indicated generally by the numeral 42, and the gauge 42 serves to insure that the pipe 10 is maintained in its proper position with respect to the remaining portion of the tool. The gauge 42 includes a ring 43 which surrounds the sleeve 12, and the ring 43 is provided with four threaded apertures 44, 45, 46 and 47, Figure 6. The gauge 42 further includes a bracket 48 which has a semi-circular shape, Figures 4 and 5. The bracket 48 includes two sections 49 and 50, and the section 50 is of greater thickness or size than the section 49 for a purpose to be later described. The bracket 48 further includes three slots 51, 52 and 53. The slots 51 and 52 are of greater length than the intermediate slot 53.
The gauge 42 further includes a pair of similar bolts which are indicated generally by the numeral 54, and each of the bolts 54 includes an outer head 55 and a threaded stem 56 of reduced diameter. Interposed between the pair of bolts 54 is a securing element or bolt 57 which also includes a threaded shank 58 and a head 59. The shank 58 is shorter than the shanks 56 as shown in Figure 1. A fourth bolt 60 is provided, and the bolt 60 includes a threaded stem 61 that has a hand grip or handle 62 connected thereto.
From the foregoing it is apparent that there has been provided a tool which is an improvement over the tool shown and described in my prior Patent 2,559,332. The tool of the present invention is adapted to facilitate the work of threading pipes such as the pipe 10. In use the pipe 10 can be positioned in the tool as shown in 1 and 2, and then the gauge 42 is adjusted on the sleeve 12. The bolts 54 and 60 are adjusted inwardly until they engage the outer surface of the pipe 10 whereby the tool is maintained centered on the pipe. Then, by rotating the handle 29, the shaft 23 will be rotated and this turn will cause rotation of the pinion gear 25 which meshes with and rotates on the gear 31. Since the gear 31 is keyed as at 32 to the sleeve 12, then this notation of the handle 29 would ordinarily result in rotation of the sleeve 12. However, the bolts 54 and 60 have their inner ends engaging frictionally the outer surface of the pipe 10, so that the sleeve 12 cannot rotate on the pipe 10. Thus, as the Wrench or handle 29 is turned, the shaft 23 Will turn and the gear 25 will walk around or travel around the stationary gear 31 to thereby cause rotation of the housing 17 about the sleeve 12. As the housing 17 rotates it carries the head 33 there with it, and as the head rotates, the prong 37 engages the teeth 38 of the die 39 to thereby cause the portion 40 of the die 39 to make the threads 11 on the pipe 10.. Thus, by means of the simple rotation of the handle 29, the pipe is quickly and easily threaded.
Any type of die head 39 can be used in the tool and the die heads 39 can be interchanged as desired. The sleeve 12 has the slot 13 which receives the key 32 where l 13 by the sleeve and gear 31 are locked together. The three slots 14, 15 and 16 in the sleeve 12 receive the bolts 54 and 60, as shown in Figure l. The ring 43 has the three openings 44, 46 and 47 through which the boltsiE-i and 60 extend, and there is also provided the threaded 'apecrture 45 which receives the bolt 57. After the pipe 19 has been inserted into the die head 39, and the setsczi'ews 54 are in their proper position, then the master 'set'screvv 60 is adjusted by means of the handle 62 to thereby 'pmoperly position the ratchet die head so that proper thrreadswill be cut on the pipes. The bracket 48 is pro .vided with a pair of slots 51 and 52 whichreceive the bolts'54, and the'slot 53 receives the bolt 57 'as'shown in Figure 1. The bolt 'or screw 57 preveuts accidental loss of the bracket 48 since the ends of the 'sl-ot53 terminatejshort of: the sides of the bracket -4E5. It is to-be noted .thatL-thebracket '48 has'two' sizes or thicknesses '49 and '50 which permit gauging of two different sizes of pipes.
By removing the bracket 48, the bolts 54 can be extended 'even 'further'into the sleeve IZ'to't-hereby accommodate anothetr'jsize pipe. The inside diameter of the sleeve 12 "alsoserves as a gauge for a pipe. Thus, four idifierent nular side wall, there being registering apertures said end vvalls, a shaft including a cylindrical stem extending '4 thcroughrsaid registering apertures, an enlarged shank extending from said stem and terminating in a square shaped portion, a pinion gear keyed to said stem and rotatably positioned in said housing, a gear member meshing with said pinion gear and keyed to said sleeve, a head extending from said housing and provided with a chamher, there being a recess in said'housing, a die head havinga portion seated said recess and provided with a plurality of teeth on its outlet-periphery, said die 'h'ead being provided with an inner threaded portion, a stud slidably mounted in said head 'andmeluding an inclined prong mounted for movement into an'd out of engagemenfwith the teeth on said diehead, sea-1 springcircumposed on said stud and abh'tting'said prong, a gauge mounted on said sleeve, a knob arranged on the outer end of said stud, said gauge including a ring mounted on said sleeve and providedwith a plurality of threaded aperture-s'there being a first; secondand' third s lot'in said sleeve, a semicircularbracket mounted on said ring'and having slots therein, "said bracket including twosec-tions the sleeve toniove only axially of the work piece, and a handle provided with a socket for receiving the square shaped portion of said shaft.
ReferencesCited in the file of this patent UNITED STATES PATENTS Emery Apr. 9, 1940 Wright July 3, 1951
US481459A 1955-01-12 1955-01-12 Ratchet gear assembly for wrenches and dies Expired - Lifetime US2781530A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2196897A (en) * 1938-07-08 1940-04-09 Oster Mfg Co Threading tool
US2559332A (en) * 1947-06-20 1951-07-03 Roy O Wright Ratchet gear assembly for wrenches

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2196897A (en) * 1938-07-08 1940-04-09 Oster Mfg Co Threading tool
US2559332A (en) * 1947-06-20 1951-07-03 Roy O Wright Ratchet gear assembly for wrenches

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