US1401560A

US1401560A - Saw-gage

Info

Publication number: US1401560A
Application number: US140590A
Authority: US
Inventors: Royle Vernon
Original assignee: Individual
Current assignee: Individual
Priority date: 1917-01-04
Filing date: 1917-01-04
Publication date: 1921-12-27
Anticipated expiration: 1938-12-27

Description

V. BOYLE.

SAW GAGE.

APPLICATiON FILED JAN. 4,191]. 1,401,560, Patented D66. 27, 1921.

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V. ROYLE.

SAW GAGE. APPLICATION FILED JAN-"1,1917.

Patented Dec. 27, 1921.

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SA GE. APPLICATION JAN.4,19H1

Patented Dec. 27, 1921.

3 SHEETS-SHEET 3- Zwevwtow I UNITED STATES VERN ON BOYLE, OF PATERSON, NEW JERSEY.

SAW-GAGE.

Specification of Letters Patent. Patented Dec. 2'7, 1921.

Application filed January 4, 1917. Serial No. 140,590.

To all whom it may concern:

Be it known that I VERNON Rona, a citizen of the United tates, and resident of Paterson, in the county of Passaic and State of New Jersey, have invented a new and useful Improvement in Saw-Gages, of which the following is a specification.

This invention relates more particularly, to that type of gage known as a bevelingripping gage.

An object is to provide a device of this character which may be very expeditiously and accurately adjusted toward and away from, andangularly with respect to, the saw or cutter, and in which the lower or operative edge of the fence proper or guide plate may be broughtinto exceedingly close proximity to the saw and to thesurface of the work table through which the saw protrudes.

Another object is to provide such a device which is comparatively cheap and simple to manufacture, but which is unusually rigid in operation and durable.

A further object is to provide a special work-supporting and guiding form which may be firmly and quickly, but removably, attached or secured to the fence proper or guide plate of the gage when it is desired to saw, in an exactly similar manner, a considerable quantity of work. i i

A still further object is to provide certain improvements in the form, construction and arrangement of the several parts of the device whereby the above mentioned objects and other features of advantage may be effectively attained.

A practical embodiment of my invention is represented in the accompanying drawings, in which,

Figure 1 represents a perspective view of the complete gage fitted upon the work table. a

Fig. 2 represents a top plan view of the same. i

Fig. 3 represents a vertical section ta ten in the plane of the line III-III of Fig. 2, looking in the direction of the arrows.

Fig. 4 represents a vertical section taken in the plane of the line IVIV of Fig. 2, looking in the direction of the arrows.

Fig. 5 represents a transverse section taken in the plane of the line V-V of Fig. 2, looking in the direction of the arrows.

Fig. 6 represents a detail section taken in the plane of the line VL-VI of Fig. 3, look ing in the direction of the arrows.

Fig. 7 represents a perspective view of the complete gage upon the table, with the special form secured to the fence or guide plate.

Fig. 8 represents a view similar to Fig. 3, but showing the special form attached to the fence or guide plate.

Fig. 9 represents a transverse central section through the special form, and

Fig. 10 represents a detail section taken in the plane of the line X X of Fig. 8, looking in the direction of the arrows.

The work table is denoted by 1, and it has a pair of

grooves

2, 3, fashioned in the upper. surface thereof, in a well understood manner, for the purpose of slidably mounting the gage. The groove 2 is considerably undercut or dovetailed, while the groove 3 is slightly constricted toward the bottom, as clearly shown in section in Fig. 5.

The gage comprises a base 4:, which has a tongue or rib 5, on the under side thereof, fitted to slidably engage the guiding groove 3 in the work table 1. A bolt 6 passes through the base 1, and hasan elongated head? which is dovetailed. in cross section and calculated to slidably fit in the undercut groove 2. for the purpose of locking the base 4 and parts carried thereby in any selected or predetermined position upon the work table 1. A thumb nut 8 serves to draw up .the bolt 6 for the purpose of clamping its head 7 against the side walls of the groove 2, in a well understood manner.

The support 9, for the fen e proper or guide plate, has a pair of laterally extending L-shaped arms 10, which are pivoted by means of screws 11, in the front end of the base 4. This support 9 is held in angular position by a strut 12 which has one end pivoted thereto at 13, and the other end pivoted at 14 in a carriage 15 which is arranged to slide on ways 16 formed on the upper surface of the base 1. A bolt 17 pierces the carriage l5 and has an elongated dovetail 16, and hence locking for the purpose of drawing it shaped head 18 slidably arranged in an undercut groove 19, located in the upper surface of the ways 16, which has a cross section similar to that of the bolt head 18. A thumb nut 20 serves to tighten up the bolt 1'? for the purpose of locking the carriage 15 in any predetermined position on the ways the support 9 in any desired angular position. A scale 21, preferably marked in degrees, is engraved at one side of the ways 16, while the front end of the carriage 15 is beveled down to a sharp edge in order to aid the visual registering of the carriage 15 with any selected division of the scale, and hence accurately adjusting the support 9 inany desired angular position. The scale 21 is so graduated and marked with respect to the support 9, strut 12 and carriage 15 that, when the front edge of the latter is in register with any given numeral on the scale 21, the support 9 will e at a corresponding degree of angularity with respect to the surface of the work table 1. Thus, when the front beveled edge of the carriage 15 coincides with the degree line marked 40, on the scale 21, the support'9 will be at an angle of 40 to the horizontal, etc.

The fence proper or guide plate is inclicated by 22, and it is arranged to slide upon the support 9 toward and away from the work table 1 and saw 23. This guide plate is substantially flat and oblong in shape, and has a centrally disposed transverse groove 24 formed in its rear surface. This groove is undercut and dovetailed, as in the case of the

grooves

2 and 19, and a bolt 25 traverses the support 9 and has an elongated head 26, which is also of keystone shape in cross section and of such a size as to have a slidin the groove 24. A thumb nut 27 is threaded on to the end of the bolt 25, up and firmly clamping the head 26 against the walls of the groove 24, thereby locking the fence proper or guide plate 22 in any selected position on the support 9.

The guide plate 22 also has a rib 23 on its rear side and parallel with the groove 2%, which rib fits in a correspondingly shaped groove 29, at one side of the support 9, for the purpose of steadying and guiding the plate 22 in its movement on the support.

It will be observed that, in the construction already set forth, the pivot upon which the guide plate and support swing is located a distance away from the lower or operative edge of the plate. This enables the latter to beadjusted down into very close proximity to the work table 1 and saw 23, as indicated, for instance. in Figs. 1, 3 and 4:. In saw gages heretofore in use, which have had the pivot pin, upon which the fence or guide plate swings, located'at the lower or operati-ve edge of the plate, it has been impossible .such a situation, I

to obtain this close adjustment, and hence there has been a serious handicap in ripping and beveling thin stuff.

It frequently happens that there is occasion for performing exactly the same beveling operation upon a comparatively large amount of material, and, to accommodate have devised a form of fixed shape, for the purpose of holding and guiding the several pieces of material as each is passed through the same sawing operation. An example of this form is shown in Figs. 7 to 10 inclusive of the drawings. It is denoted by 30, and is seen to be substantially L-shaped in cross section. From the rear of the form, a pair of headed pins project, specifically shown in the present instance as screws 31; which pins or screws are fitted to engage apertures 32 formed in the guide plate 22. These apertures are of a form which may be described as hole-andslit, that is, they have a round hole at one end while a slit, narrower than the diameter of the hole, progresses laterally from the latter. The rear edges of these apertures 32 are inclined away from the hole part, as shown in Figs. 2 and 10. Thus, it will be seen that the form 30 may be firmly but detachably secured to the guide plate 22, by passing the heads of the pins or screws 31 through the hole parts of the apertures 32, and then sliding the form 30 laterally on the plate 22 so as to cause the under sides of the heads of the pins or screws 31 to travel upwardly along the inclined rear walls of the slit portion of the apertures 32.

The form 30 may be composed of wood, and it may have one or

more slots

33, 34, for the reception of the saw 23. It will be clear that, when the form 30 is fixed in position as described, with the saw 23 traversing a given

slot

33 or 34, exactly the same sawing operation may be expeditiously performed upon any given number of similar pieces of material. By varying the position of the slot through which the saw passes, the character of the sawing operation may be correspondingly varied, and any movement of the form requisite to enable the saw to coincide with another slot therein, may be effected by sliding the guide plate 22 on the support 9, as has already been described.

I believe that the manner of operating this device will be perfectly apparent to anyone having any familiarity with this art, from the foregoing description taken in connection with thedrawings; but I may add that various changes may be resorted to in the form, composition, construction and arrangement of the several parts, without departing from the spirit and scope of my invention; and hence I do not intend to be limited to the specific details herein shown and described except as they may be included in the claim.

What I claim is: tongue friotionally in the groove, said means A saw gage comprising, a support pivoted operating to draw the plate toward the supto swing into different angular positions port and temporarily lock it in various adwith respect to the work table and a guide justments.

5 plate fitted to slide toward and away from In testimony that I claim the foregoing as the table on said support and having a clove my invention, I have signed my name this tailed tongue and groove engagement with 28th day of December, 1916. the support, and means for clamping the VERNON BOYLE.