US580922A

US580922A - Abraham t

Info

Publication number: US580922A
Authority: US
Publication date: 1897-04-20
Anticipated expiration: 1914-04-20

Description

(No Model.)

A. T. HLBROWER. SUPPLEMENTAL TIGHTENER FOR PRINTERS QUOINS. No. 580,922. Patented Apr. 20, 1897.

UNITED STATES PATENT OFFICE.

ABRAHAM T, H. BROVVER, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE UNION QUOIN COMPANY, OF SAME PLACE.

SUPPLEMENTAL TIGHTENER FOR PRINTERS QUOINS.

SPECIFICATION forming part of Letters IPatent No. 580,922, dated April 20, 1897. Application filed September 30 1895. Serial No. 564,101. (No model.)

To all whom it may concern:

Beit known that LABRAHAM T.H.BROWER, a citizen of the United States, residing at the city of Chicago, Cook county, Illinois, have invented certain new and useful Improvements in Supplemental Tighteners or Looks for Printers Quoins, of which I do declare the following to be a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

The present invention has for its object to provide improved means whereby the pairs or sets of quoins commonly used by printers for locking the type-forms within the chases can be so tightened and looked that all danger of the slipping of the quoins and constant loosening of the type-form will be avoided.

The invention is adapted more particularly for use in connection with that class of printers metallic quoins each pair of which comprises two wedge-shaped bodies having their abutting incline faces formed with rack-bars adapted to be engaged by a suitable key in order to shift the wedges with respect to each other, and thus effect the locking of the typeform within the chase. In Letters Patent No. 413,166, granted to me October 2, 1889, is shown an example of this type of printers quoin. In the finer classes of job-work, particularly where the printing is done in a variety of colors and the most exact register is required, it is important that when the type-form has been locked up there shall be no easing or loosening of the form, even to a slight extent, because when this occurs the exact register of the printing is destroyed.

By my present invention all danger of the quoins'slipping and allowing the type-form to ease or loosen after it has been locked up is effectively guarded against, and by this invention also an additional relative shifting of the quoins to more tightly look the typeform can also be had when found desirable.

The invention consists, primarily, in a supplemental tightener or look for printers quoins, comprising a body having a part that is adapted to engage one of a pair of quoins, in combination with a pressure device or mechanism for engaging other of said quoins, so that when the type-form has been locked up the quoins can with certainty be retained in their locked position against danger of slipping or becoming loose.

The invention also consists in various novel features of construction that will be hereinafter described, illustrated in the accompanying drawings, and particularly pointed out by claims at the end of this specification.

Figure 1 is a plan view of a printers chase and type-form having my invention applied thereto. Fig. 2 is a perspective view of one form of my improved supplemental quoin tightener or look. Fig. 3 is a perspective view of the tightener or look shown in Fig. 2, but taken from the opposite side. Fig. 4 isadetailplan viewof one of a pair of quoins. Fig. 5 is a detail perspective view of a slightlymodified form of my improved quoin lock or tightener. Fig. 6 is a perspective view of the device shown in Fig. 5, this view being taken from the opposite side. Fig. 7 is a view in side elevation (parts being shown in longitudinal section) of a pair of quoins having the form of my invention illustrated in Figs. 5 and 6 applied thereto. Fig. 8 is a perspective view showing the form of key that will be used with the devices illustrated in Figs. 2 and 5. Fig. 9 is a perspective view of a modified form of the invention. Fig. 10 isa View in longitudinal section through the form of the invention illustrated in Fig. 9. Fig. 11 is a view in horizontal section on line 11 11 of Fig. 10.

A designates the chase wherein the type is held, and B denotes the reglet or like furniture about the form. C C denote the wedgeshaped sections of a pair of quoins, one of which sections is illustrated in plan in Fig. 4 of the drawings. The inner faces of the quoinsections C and C are formed with the rackbars 0 and with the open spaces 0, these spaces serving to permit the insertion of the usual keys whereby the quoins will be shifted to lock and unlock the form in manner well understood in the art.

The form of my improved quoin lock or tightener illustrated in Figs. 1, 2, and 3 comprises a body D, having a part or projection d, adapted to engage with one of the quoins, and preferably this projection 01 is of such size and shape that it will enter between the teeth of the rack-bars 0 upon the inner faces of either of the quoins. By preference also the body D has a rearward extension (1, adapted to rest upon the teeth of the rack-bar c. Preferably also the body D is formed of approximately the same width of the larger end of the quoin, so that all danger of the part or extension (1 rising from out the teeth of the quoin will be avoided. The bodyD is formed with a threaded perforation, through which passes a correspondinglythreaded screw E, the outer end of which has a head e with projections that enable it to be firmly engaged bya suitable key or wrench F. (See Fig. 8.) It is manifest that any convenient shape may be given, however, to the head of the screw E, and any suitable form of key or wrench may be employed for operating this screw. By preference also the body D is formed with a groove (1 that will set over the rib 0 that is usually formed at the end of the rack-bar c in the type of quoin illustrated. From the foregoing description itwill be seen that after the quoin-sections O C have been shifted by means of the usual keys, so as to lock up the type-form, the quoin lock or tightener D will be dropped into place with its part or extension 01 entering between the teeth of the rack-bar immediately behind the larger end of one of the quoins. The screw E will then be turned by the key or wrench F, so that the free end of the screw shall bear tightly against the quoin O and thus securely lock it againstaccidental slippingor yielding with respect to the quoin C. If desired, also, the screw E may be used for more tightly locking up the type-form, since as this screw is advanced the quoin C will be shifted upon its companion quoin C. p

In the form of my invention illustrated in Figs, 5, 6, and 7 the body D of the supplemental quoin lock or tightener is shown as provided with a threaded opening to receive a screw like the screw E, (illustrated in Figs. 1, 2, and 3-,) but in this form of the invention the body D is not so broad as in the form shown in the precedingfigures of the drawings. The body D in this last form, as in that previously described, is provided with a part or extension 01 adapted to engage one of the quoins, and is provided also with a shallow extension 01 adapted to enter the groove 0 that is formed in the inner face of the larger end of the quoin, as more particularly shown in Fig. 7 of the drawings. By preference a groove d is formed on the inner face of the body- D, this groove permitting the body to pass over the rib 0 upon the inner face of each of the quoins C and 0'. It

will be observed that in this last form of my invention the part or extension clthat engages with one of the quoins is at the outer end of the bodyD instead of at the inner end, as in the form of the invention illus-' trated in Figs. 1, 2, and 3. The extension d settingwithin the groove 6* of the quoin, serves to prevent the part or extension cl from slipping out of engagement with the rack-bar c as the screw E is turned. In the use of this form of my invention after the quoins C C have been shifted in the usual manner to lock up the type-form the body D will be inserted adjacent the larger end of one of the quoins, with the extension d projecting slightly within the groove 0 and with the part or extension 01 engaging the teeth of the rack-bar 0. With the parts in this position the screw E will be turned by means of a suitable wrench, such as that shown in Fig. 8, so as to securely lock the quoins in position or, if desired, further shift the quoins with respect to each other, in order to more tightly lock up the form of type.

In the form of the invention illustrated in Figs. 9, 10, and 11 the bodyD of myimproved quoin lock or tightener is formed with a part or extension d, adapted to engage one of the quoins, and, as in the preceding forms of my invention, is provided with apressure device -to insure the locking of the quoins or their additional shift, if required. In this form of the invention the body Dis chambered to receive a sliding push-bar G, that has a circular opening g formed therein, and through this circular opening 9 passes a shaft H, having an eccentric portion h, that will engage with the push-bar G and thus advance or retract this bar according as the shaft isturne'd. Preferably the shaft H is retained in place by a pin K, passing through the body 1) and through an annular groove h formed adjacent one end of the shaft, and in order to permit the shaft to be readily turned its ends are formed with grooves its to receive a screwdriver orlike tool.

From the foregoing description it will be seen that when the form of the inventionillustrated in Figs. 9, 10, and 11 is to be employed the body D will be placed imposition immediately behind the larger end of one of the quoin-s, so that the part or extension (1 shall enter between the teeth of one of the rack bars c,'the push-bar G being at such time in retracted position. Then by turning the shaft H the push-bar can be forced outward, so as to firmly bear against the end of the quoin and thus securely lock it against all danger of accidental slipping. V

\Vhile I have illustrated in the drawings I several forms of my invention, it is manifest that the details of construction can bevaried within wide limits without departing from the spirit of the invention, and I do not wish,

therefore, that the invention should be understood as restricted to the details of the structure set forth, except where such details respecificallyrecited in the following claims.

Having thus described the invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A supplemental lock or tightener for printers quoins separable from, the body of said quoins and-having a part adapted to engage one of the opposing faces of a pair of IIO quoin-sections at a point beyond the other of said sections and having a pressure device for engagement with the end of the other of said quoin-sections, substantially as described.

2. A supplemental lock or tightener for printers fquoins comprising a body separable from said quoins and adapted to set Within the space at the end of the quoin-sections and having a part adapted to engage one of the opposing faces of the quoin-sections at a point beyond the other of said sections and being provided with a pressure device carried thereby independently of the quoins and adapted to engage the end of the other of said quoinsections, substantially as described.

3. A supplemental lock or tightener for printers quoins comprising a body independent of said quoins and adapted to fit Within the space at the end of the quoin-section and having a part adapted to engage with one of the opposing faces of the quoin-sections and having a pressure device arranged to bear against the end of the other quoin-section, substantially as described.

4. A supplemental lock or tightener for printers quoins comprising a body D provided with a projection 01 adapted to engage with one of the opposing faces of a pair of quoins, said body and its projection being adapted to fit in the space at the end of the quoin-sections and said body carrying a pressure device arranged to engage the outer end of one of the quoin-sections, substantially as described.

5. A supplemental lock or tightener for printers quoins comprising a body having a part or extension adapted to engage one of a pair of quoins and having a screw arranged to engage the end of the other of said pair of quoins, whereby the relative shift of the quoins may be effected, substantially as described. I

6. A supplemental lock or tightener for printers quoins comprising a body D separable from the quoins and adapted to fit within the space at the end thereof and having a part or extension d adapted to engage with one of a pair of quoins, a screw E passing through said body D and arranged to bear upon the end of the other of said quoins, said screw having its end formed to receive a suitable Wrench or key, substantially as described.

ABRAHAM T. H. BROWER.

Witnesses:

GEo. P. FISHER, J r., FRED GERLAOH.