Improvements in Cramps for Picture Frames and other Articles.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Cramps for Picture Frames and other Articles.
JOHN LONG, 27, Princes Street, Dorchester, Dorset, Joiner and Machinist, do
hereby declare the nature of this invention to be as follows:-
Fig. 1 is the cramp, and is worked, by screwing bed or main frame AB on
a bench, with four screws. The arms H are opened to size required, angle clips A³
put in proper position, The work when placed in the cramp is secured, and kept
in position for screwing or nailing, by drawing handle D towards the operator,
the collar E, F, being pushed close to boss or eye Y, secures or locks the work
firmly by half or three quarter turn of handle D, by the stud formed on the
screwed part of handle, Figs. 4 and 7, sliding up the groove J Fig. 5, and
working in worm or screw shown in section E, F, Fig. 7.
The angles are fastened through the openings of angle clips mark'd E in
Fig. 11.
Working and constructional principals as follows,
A, B the bed or main frame in which sliding bar R, S, works, passing through
boss or eye Y Figs. 1 and 7 and Y Fig. 5, and in a recess at other end of
bed A, B, is guided by and slides on screwed stud V in cross section C D Fig. 2
and in longtitudinal section Fig. 5.
Nib Q Fig. 5 is cast on sliding bar R, S, which slides in slot Q in bottom of
bed section Fig. 3 prevents twisting strain on sliding bar RS when locking with
nut E F Fig. 1.
Four arms H, H, H, H, are hung loose on screwed and rivetted pins UU, in
bed ears CD Fig. 1 also in cars of sliding arm R, S at C and D³ Fig. 1.
Four quadrants or angle clips A Fig. 1 which receives the angles of picture
frames or other work, slides loose one on each of the four arms H, are held in
position by solid hook Dh Fig. 10 working on solid studs or nibs F. Fig. 1, and
also controls the angle clips for different size work, and allows a swinging motion
for different angles, quadrant rib H" Fig. 10 passing between studs or nibs
prevents hook Dh from unhooking when in use. The quadrants or angle clips
when turned one side close to armi, will allow the arm H to slide through open-
ings Hd and He Fig. 10. Fig. 11 elevational section of Fig. 10, through Wa
to Rd.
Pforms the sides of quadrants by which the work is held, the two sides with
angle stud E being at right angles to one another.
Figs. 10 and 11 are for small work, Fig. 12 for large or any elaborate project-
ing or underworked mouldings and the like, with angle clip M working inside
of quadrant clips, and secured by hooks or screws L in slots SS, adjusted and
held firm in position by screw K³ underside of quadrant clip Fig. 12 (with excep-
tion of slot webbings) are in every respect similiar to underside of quadrant clip
Figs. 10 and 11.
To prevent damaging elaborate mouldings, quadrant sides P may be faced
inside with portable rubber or other suitable covering.

page_text: Tilting of quadrant clips is prevented by guides J' passing under arms H,
shown by dotted lines Pe Fig. 10,
Quadrant clips are cast in one piece..
Section of arm is shown at Jk Fig.11 showing stud or nib by dotted lines.
Fig. 6 side view of arms H showing studs or nibs numbered for easy adjust-
ment. R end section of same, Fig. 8 shows the joint of lengthening arms for
larger frames, the joint "being, secured by fish plates L fixed with screws in
section 0.
For extra large work, sliding bar R, S is lengthened with pipe or round rod,
screwed at each end N; N, Fig. 7, and fastened with pins, and work in port.ble
boss or eye M 7.
X end section of eye M with projecting nib T inside working in screw slot J
Fig. 5, to prevent twisting of rod R.
For many other classes of work, when required centeral gear Fig. 5 to be used,
seperately or combined, with screw J, teeth are cast at S on sliding bar R, S, in
Figs. 1 and 5, and operated by pinion W2 rotated by worm W, operated by
handle K. The worm and pinion enclosed in case W, case W fixed to cars, C, P,
and I, P, of bed Fig. 1 and section P;P, Fig. 9 or may be worked by foot power.
One or more loose collars D" Fig. 13 for placing between boss or eye Y Fig. 1,
and handle or nut EF to keep nut and handle EF sometimes clear of the work
in process.
The invention above described is to be made to work, by either of the two fore-
going principles, seperately, or combined, to suit the use and purpose of the
operator, The whole is cast in malleable iron, with the exception of handle and
screwed stud that forms the locking stud D Fig. 4, where preferred can be made
of steel for harder wear, as may be in form of wing or fly nut with projecting
stud inside as before described.
Dated this 26th day of September 1898
Improvements in Cramps for Picture Frames and other Articles.
I, JOHN LONG, Joiner and Machinist, of 27, Princes Street, Dorchester, Dorset,
do hereby declare the nature of this invention and in what manner the same is
to be performed, to be particularly described and ascertained in and by the fol-
lowing statement:-
-
My invention relates to improvements in that class of cramps, which are
adapted to serve the additional function of picture frame cramps; and its novelty
and many advantages will be fully understood from the following description and
claims, when taken in conjunction with the drawings left with the Provisional
Specifications,
Fig 1 is a plan of the cramp (two arms not shown complete) equipped with
my improvements as hereinafter described.
Fig. 2 is a part elevation of arms and portion of main frame or bed of cramp,
in which two of the arms are connected and sliding bar arranged therein being.
in section.
Fig. 3 a cross section taken in the plan indicated by the lines A B of Fig. 1,
and,
Fig. 4 is the portable locking nut, with handle, engaging with instantaneous
screw on sliding bar by projecting screwed stud.
Fig. 5 is a longitudinal section of cramp with sliding bar R S marked on
4

page_text: Fig. 1 having a solid screwed end and handle combined, and with ears for the
connection of two arms and with rack, worm and pinion motion connected
thereto being a portion of my improvements.
.
Fig. 6 is an elevational view of one of the arms of my improved cramp,
Fig. 7 is a longitudinal section of, and
Fig. 7 is longitudinal plan of method for lengthening sliding bar,
Fig. 8 is a part elevational view of arm showing method of lengthening same,
Fig. 9 is an end elevation of central gear casing containing worm and pinion,
the casing being connected to main frame or bed which is in section,
Fig. 10 is an enlarged plan of one of the four quadrant or angle clips, con-
nected to a portion of one of the arms of my improved cramp,
Fig. 11 is an elevational section of one of my improved quadrant or angle clips,
together with cross section of one of the arms.
Fig. 12 is a plan of another form of quadrant or angle clip of my improved
cramp containing an adjustable angle clip on inner side of same, and
Fig. 13 is an elevation and section of loose collars comprising a portion of my
improved cramp,
In the said drawings, similar letters designate corresponding parts in all the
several views referring to which,
A B indicate main frame or bed designed in one piece, and is provided with
flanged ears for fixing, and with double ears C and D in which arms H move
freely on screwed or rivetted pins, top part of ears C and D are extended to form
flanges PP, frame bed is also provided with slot for reception of stud Q Fig. 5,
on sliding bar, and is provided with boss or eye Y to receive sliding bar,
RS indicate sliding bar arranged to slide in main frame or bed, and is provided
with double ears C and D to receive arms H also with screwed pin V in Fig. 5
and between cars of main frame in section Fig. 2, and is also provided with.
rack S adapted to engage with central gear having pinion We, also with instan-
taneous screw Jadapted to be locked or secured by projecting stud inside of
portable handle or nut EF engaging in thread of screw J, also is provided with.
stud Q sliding in slot at bottom of bed, H, H, H, H, Fig. 1 indicate four arms
in elevation at Fig. 6 and, in section at R and is provided with solid studs or
nibs F cast thereon and numbered on side of arm, and are connected to ears C
and I of main frame or bed, see U, U, in section Fig. 2 also to ears C² and D³
of sliding bar. A Fig. 1 indicate quadrant or angle clips of which there are
four of similar construction adapted to slide freely one on each of the four arms H
with solid hook Dh engaging on arm studs 16, and is provided with guide Pe on
plan Fig. 10, its depth being suitable to serve as a recess for the arms and being
determined by sides J Fig. 11, a section, of Fig. 10 throug W to Rd, also pro-
vided with guide rib H having opening He for passage of arm studs F, and
arranged with vertical sides 1" and angle stud E6 (stud being of angle shape and
recessed at bottom on inner side, not illustrated) and openings E10. Inner faces
of sides P, angle stud Es and angle clip M are arranged with portable rubber or
other suitable covering (not illustrated). Method of lengthening arms H is
arranged by means of fish plates L on both sides of arm joint and secured by
screws 0. Fig. 12 indicates another form of quadrant or angle clip provided at
top with vertical sides and angle stud, at outer side of bottom with guide, rib,
and hook, similar in every respect to quadrant or angle clip A³, with exception
of angle clip M which is of angular of shape section, arranged to slide freely
on inner face of quadrant or angle clip which is provided with flanged central
slot continued under angle stud in which screw moves freely and is held in
position by split key at inner end, Screw K is arranged to engage with solid
angle forming nut of angle clip M, flanged slots S are arranged for screws or
hooks to slide freely in and secured at top through boss L by
means of nut. Fig. 18 indicate loose collar adapted to be engaged
on screw Jof sliding bar, W indicate casing connected by screws
to flanges CP and D P, W worm fixed on arbor having handle thereon.

page_text: and W2 tooth pinion arranged and rotating therein on fixed arbor in casing, and
engaging with rack S on sliding bar, or it may be worked by foot power. R
indicate method of lengthening sliding bar RS by means of solid or hollow rod
screwed and secured at both ends by pins N N in section Fig. 7, and arranged
with portable eye M, having cast on inner side rib T engaging with groove on
screw J on sliding bar. Fig. 4 indicates portable handle D connected to nut E
by screwed end projecting inside and arranged to engage with thread on screw J
of sliding bar. After main frame or bed A B is placed or fixed on bench or other
convenient place, arms H are opened to required angular position for reception
of work, quadrant or angle clips A" being placed on arms H are held and con-
trolled to size of work by hook Dh engaging on arm studs F which also allows
angle clips A³ a swinging motion to true angular position of work, studs Fo
having numbers on side of arms see Fig. 6, adjustment to any size work is
readily obtained from a sheduled list of sizes, the work is held by sides P and
angle stud E, the work being in position handle D of sliding bar is drawn
towards the operator, portable handle or nut E is placed on and slide up groove
in screw J, cramps and hold the work firmly by turning handle D half or three
quarter turn in a right hand direction against eye Y of main frame, the work
after angles are permantly secured by screwing or nailing, is released by turn-
ing nut EF towards the left hand, and by pushing handle D' of sliding bar RS
from the operator, One or more loose collars D" are sometimes required on
screw J between eye Y and nut E, F, to prevent contact of work with handle 18,
excepting when sliding bar RS is lengthened by rod R which is also intended to
prevent contact of work with handle D. Central gearing Fig. 5 engaging with
rack S on sliding bar, is intended principally for heavy work or where prefer-
ance is given instead of instantaneous screw J and to be constructed seperately
or combined with screw J. Quadrant or angle clips Fig. 12 are designed for
heavier work the smaller clip M sliding therein is provided to .engage with the
undercut or plain portion of elaborate mouldings and the like. Quadrant or
angle clips slides freely by turning clip side close to side of arm and allowing
studs F6 to pass through openings He and H. Quadrant or angle clips are cast
in one piece with exception of moveable clip M. It will be seen from the fore-
going that my improvements are designed for strength and simplicity and is
compact and neat in appearance.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. The combination of a suitable main frame or bed of one piece, having
flanged fixing ears on outer sides, and sides angular with bottom, and arranged
with slot in bottom of bed engaging with stud of sliding bar, one end of bed
having recess arranged with double cars on either side and arms connected loosely
therein with pins rivetted or threaded in ears, and at its opposite end eye and
threaded end of sliding bar arranged to slide loosely therein, opposite end of slid-
ing bar slides freely in recess between double ears and having slot engaging on
pin threaded in sides of recess substantially as specified.
2. The combination of arms of H section with solid studs thereon and numbered
on side of arm, arranged to engage with hook of quadrant or angle clip, and
having at one end pin eye engaging loosely on pins in double cars of main frame
and sliding bar, and, having joint for lengthening connection secured on both sides
with fish plates having screws threaded therein substantially as specified.
3. The combination of sliding bar having at one end, double cars on each side
and arms connected loosely therein with pins rivetted or threaded in ears, and
arranged with toothed rack engaging with toothed pinion in central gear, with
slot portion sliding in bed recess and engaging on pin threaded in sides of said
recess, and at its opposite end a handle and screw with instantaneous, screw
thread having a groove centrally disconnecting thread on one side, arranged for

page_text: sliding of portable nut stud engaging in thread and locking same against outer
end of main frame eye, and having at bottom edge projecting stud arranged to
slide in bed slot, and further arranged with central lengthening connection of
solid or hollow rod threaded and secured with pins at each joint, and having
portable eye plate with rib on inner side arranged to engage with groove sliding
lcosely therein, substantially as specified.
4. The combination of central gearing having casing of one piece with flanged
ears for connection with screws on top flanges of double ears of main frame,
having arranged therein, worm and handle fixed on arbor rotating in casing and
engaging in toothed pinion rotating on fixed arbor in casing, with pinion engag-
ing in rack teeth of sliding bar substantially as specified.
5. The combination of quadrant or angle clip having on top side two vertical
Bides and angle stud inner side of angle section with angle portion recessed at
bottom, and at its bottom side arranged with solid hook engaging with studs on
arms, having arm guide, and guide rib with opening arranged to slide freely on
arms, solid hook engaging on arm studs, and arm sliding freely between guide
on bottom side of clip, and guide rib engaging between arm studs having opening
at one end of rib through which stud slide.
6. Another form of quadrant or angle clip arranged similar in every respect to
the aforesaid described, but having three flanged slots in bottom of angle clip,
with additional angle clip of angular section sliding freely on top of bottom, the
corner of smaller clip engaging on screw revolving and fastened in central slot,
and having screws or hooks engaging in clip bosses and fastened with nuts and
sliding freely in outer slots in clip bottom, and portable rubber or other suitable
covering arranged for inner faces of clip sides, angle stud, and angle clip which
slides on clip bottom substantially as specified.
7. The combination of portable nut having handle threaded in nut portion, and
projecting through inner side forming stud and engaging in screw thread on
sliding bar, a portable collar arranged to engage loosely on screw portion of slid-
ing bar between bed eye and portable nut substantially as specified.
D
T
1000